diff --git a/www/html/Game/data/maps/qbroom1.json b/www/html/Game/data/maps/qbroom1.json
new file mode 100644
index 0000000..725bdcc
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom1.json
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom1.json.bak-133645 b/www/html/Game/data/maps/qbroom1.json.bak-133645
new file mode 100644
index 0000000..dbc71f7
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom1.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom10.json b/www/html/Game/data/maps/qbroom10.json
new file mode 100644
index 0000000..58bdc7d
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom10.json.bak-133645 b/www/html/Game/data/maps/qbroom10.json.bak-133645
new file mode 100644
index 0000000..50b8fe8
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom10.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom2.json b/www/html/Game/data/maps/qbroom2.json
new file mode 100644
index 0000000..919d3ec
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom2.json.bak-133645 b/www/html/Game/data/maps/qbroom2.json.bak-133645
new file mode 100644
index 0000000..1bcacbc
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom2.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom3.json b/www/html/Game/data/maps/qbroom3.json
new file mode 100644
index 0000000..756d954
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom3.json.bak-133645 b/www/html/Game/data/maps/qbroom3.json.bak-133645
new file mode 100644
index 0000000..165471b
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom3.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom4.json b/www/html/Game/data/maps/qbroom4.json
new file mode 100644
index 0000000..07dd104
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom4.json.bak-133645 b/www/html/Game/data/maps/qbroom4.json.bak-133645
new file mode 100644
index 0000000..589a5f7
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom4.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom5.json b/www/html/Game/data/maps/qbroom5.json
new file mode 100644
index 0000000..d8e29f4
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom5.json.bak-133645 b/www/html/Game/data/maps/qbroom5.json.bak-133645
new file mode 100644
index 0000000..092381c
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom5.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom6.json b/www/html/Game/data/maps/qbroom6.json
new file mode 100644
index 0000000..05cd67d
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom6.json.bak-133645 b/www/html/Game/data/maps/qbroom6.json.bak-133645
new file mode 100644
index 0000000..b656817
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom6.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom7.json b/www/html/Game/data/maps/qbroom7.json
new file mode 100644
index 0000000..00da3d2
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom7.json.bak-133645 b/www/html/Game/data/maps/qbroom7.json.bak-133645
new file mode 100644
index 0000000..8dbde90
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom7.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom8.json b/www/html/Game/data/maps/qbroom8.json
new file mode 100644
index 0000000..129abd7
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom8.json.bak-133645 b/www/html/Game/data/maps/qbroom8.json.bak-133645
new file mode 100644
index 0000000..4c5834e
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom8.json.bak-133645
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diff --git a/www/html/Game/data/maps/qbroom9.json b/www/html/Game/data/maps/qbroom9.json
new file mode 100644
index 0000000..f6a26e6
--- /dev/null
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\ No newline at end of file
diff --git a/www/html/Game/data/maps/qbroom9.json.bak-133645 b/www/html/Game/data/maps/qbroom9.json.bak-133645
new file mode 100644
index 0000000..c1fa28e
--- /dev/null
+++ b/www/html/Game/data/maps/qbroom9.json.bak-133645
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\ No newline at end of file
diff --git a/www/html/Game/data/quiz-settings.json b/www/html/Game/data/quiz-settings.json
index cce4f92..429afb6 100644
--- a/www/html/Game/data/quiz-settings.json
+++ b/www/html/Game/data/quiz-settings.json
@@ -279,11 +279,211 @@
   "battleQuizMcq": [
     {
       "categoryId": "cybercrime",
-      "text": "ฟหกฟหก",
+      "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
       "choices": [
-        "ๆไำ",
-        "ฟหฟหด",
-        "ฟหกไๆไก"
+        "พ.ร.บ.จราจร",
+        "พ.ร.บ.คอมพิวเตอร์",
+        "กฎหมายแรงงาน"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "cybercrime",
+      "text": "การหลอกให้เหยื่อโอนเงินผ่านเว็บ/ข้อความปลอม เรียกว่าอะไร?",
+      "choices": [
+        "Phishing",
+        "Backup",
+        "Caching"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "cybercrime",
+      "text": "มัลแวร์ที่เข้ารหัสไฟล์แล้วเรียกค่าไถ่ คือ?",
+      "choices": [
+        "Adware",
+        "Ransomware",
+        "Firewall"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "cyber_law",
+      "text": "การนำเข้าข้อมูลเท็จสู่ระบบคอมพิวเตอร์ที่ทำให้ผู้อื่นเสียหาย มีโทษตามกฎหมายใด?",
+      "choices": [
+        "พ.ร.บ.คอมพิวเตอร์",
+        "พ.ร.บ.ลิขสิทธิ์",
+        "ไม่มีความผิด"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "cyber_law",
+      "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+      "choices": [
+        "พยานบุคคล",
+        "พยานเอกสารอิเล็กทรอนิกส์",
+        "ไม่ถือเป็นหลักฐาน"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "cyber_law",
+      "text": "ผู้ให้บริการต้องเก็บข้อมูลจราจรทางคอมพิวเตอร์ (log) อย่างน้อยกี่วันตาม พ.ร.บ.คอมพิวเตอร์?",
+      "choices": [
+        "7 วัน",
+        "90 วัน",
+        "1 ปี"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "privacy",
+      "text": "กฎหมายคุ้มครองข้อมูลส่วนบุคคลของไทย เรียกย่อว่าอะไร?",
+      "choices": [
+        "PDPA",
+        "GDPR",
+        "DMCA"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "privacy",
+      "text": "ก่อนเก็บข้อมูลส่วนบุคคล โดยทั่วไปต้องทำสิ่งใดก่อน?",
+      "choices": [
+        "ขอความยินยอม",
+        "เผยแพร่ทันที",
+        "ขายต่อ"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "privacy",
+      "text": "ข้อใดเป็น “ข้อมูลส่วนบุคคลอ่อนไหว”?",
+      "choices": [
+        "ชื่อเล่น",
+        "ข้อมูลสุขภาพ",
+        "รหัสไปรษณีย์จังหวัด"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "digital_security",
+      "text": "วิธีใดช่วยเพิ่มความปลอดภัยบัญชีได้ดีที่สุด?",
+      "choices": [
+        "ใช้รหัสผ่านเดียวทุกที่",
+        "เปิดยืนยันตัวตน 2 ชั้น (2FA)",
+        "จดรหัสไว้หน้าจอ"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "digital_security",
+      "text": "รหัสผ่านแบบใดปลอดภัยที่สุด?",
+      "choices": [
+        "123456",
+        "วันเกิดตัวเอง",
+        "ยาว+ผสมอักขระหลายแบบ"
+      ],
+      "correctIndex": 2
+    },
+    {
+      "categoryId": "digital_security",
+      "text": "ควรทำอย่างไรเมื่อได้รับลิงก์แปลกจากคนไม่รู้จัก?",
+      "choices": [
+        "กดทันที",
+        "ไม่กดและตรวจสอบที่มา",
+        "ส่งต่อให้เพื่อน"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "social_media",
+      "text": "การโพสต์ข้อความหมิ่นประมาทผู้อื่นบนโซเชียล มีผลอย่างไร?",
+      "choices": [
+        "ไม่ผิดเพราะเป็นออนไลน์",
+        "อาจมีความผิดทางกฎหมาย",
+        "ผิดเฉพาะถ้าใช้ชื่อจริง"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "social_media",
+      "text": "ก่อนแชร์ข่าว ควรทำสิ่งใด?",
+      "choices": [
+        "ตรวจสอบความถูกต้องของแหล่งข่าว",
+        "แชร์ให้เร็วที่สุด",
+        "แชร์เฉพาะพาดหัว"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "social_media",
+      "text": "การตั้งค่าความเป็นส่วนตัวของโพสต์ช่วยเรื่องใด?",
+      "choices": [
+        "ควบคุมว่าใครเห็นได้",
+        "เพิ่มความเร็วเน็ต",
+        "ลบไวรัส"
+      ],
+      "correctIndex": 0
+    },
+    {
+      "categoryId": "ethics",
+      "text": "การคัดลอกผลงานผู้อื่นมาเป็นของตนเรียกว่าอะไร?",
+      "choices": [
+        "การอ้างอิง",
+        "การลอกเลียน (plagiarism)",
+        "การสำรองข้อมูล"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "ethics",
+      "text": "พฤติกรรมใดถือว่า “กลั่นแกล้งทางออนไลน์” (cyberbullying)?",
+      "choices": [
+        "ให้กำลังใจเพื่อน",
+        "ส่งข้อความข่มขู่ซ้ำ ๆ",
+        "กดไลก์รูปภาพ"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "ethics",
+      "text": "การใช้ข้อมูลของผู้อื่นโดยไม่ขออนุญาตถือว่า?",
+      "choices": [
+        "ยอมรับได้เสมอ",
+        "ไม่เหมาะสมและอาจผิดกฎหมาย",
+        "เป็นมารยาทที่ดี"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "ai_data",
+      "text": "ข้อมูลที่ใช้สอนโมเดล AI ควรมีลักษณะใด?",
+      "choices": [
+        "มีอคติมาก ๆ",
+        "มีคุณภาพและได้รับอนุญาต",
+        "ละเมิดลิขสิทธิ์ก็ได้"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "ai_data",
+      "text": "ผลลัพธ์จาก AI ควรถูกตรวจสอบโดยใคร?",
+      "choices": [
+        "ไม่ต้องตรวจ",
+        "มนุษย์ผู้รับผิดชอบ",
+        "AI ตัวอื่นเท่านั้น"
+      ],
+      "correctIndex": 1
+    },
+    {
+      "categoryId": "ai_data",
+      "text": "Deepfake คือสิ่งใด?",
+      "choices": [
+        "สื่อปลอมที่สร้างด้วย AI",
+        "โปรแกรมป้องกันไวรัส",
+        "ระบบสำรองข้อมูล"
       ],
       "correctIndex": 0
     }
@@ -1790,4 +1990,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/www/html/Game/data/quiz-settings.json.bak-20260605-050107 b/www/html/Game/data/quiz-settings.json.bak-20260605-050107
new file mode 100644
index 0000000..cce4f92
--- /dev/null
+++ b/www/html/Game/data/quiz-settings.json.bak-20260605-050107
@@ -0,0 +1,1793 @@
+{
+  "readMs": 15000,
+  "answerMs": 5000,
+  "betweenMs": 3000,
+  "carryReadMs": 3000,
+  "carryAnswerMs": 15000,
+  "carrySessionLength": 2,
+  "carryMapPanelTheme": {
+    "panelBg": "rgba(255, 0, 0, 0)",
+    "panelBorder": "rgba(255, 255, 255, 0)",
+    "borderWidthPx": 0,
+    "textColor": "rgba(241, 245, 249, 1)",
+    "questionFontMinPx": 10,
+    "questionFontMaxPx": 24
+  },
+  "quizMapPanelTheme": {
+    "panelBg": "rgba(12, 14, 28, 0)",
+    "panelBorder": "rgba(255, 214, 102, 0)",
+    "borderWidthPx": 2,
+    "textColor": "rgba(255, 224, 102, 1)",
+    "questionFontMinPx": 10,
+    "questionFontMaxPx": 28
+  },
+  "carryEmbedCountdownTheme": {
+    "overlayBackdrop": "rgba(8, 10, 20, 0)",
+    "innerBg": "rgba(12, 14, 28, 0)",
+    "innerBorder": "rgba(122, 162, 247, 0)",
+    "innerBorderWpx": 1,
+    "innerRadiusPx": 12,
+    "digitColor": "#f2f2f2",
+    "mapDigitCqmin": 78,
+    "mapDigitCqh": 82,
+    "mapDigitMaxPx": 200,
+    "screenDigitVw": 28,
+    "screenDigitMaxPx": 132
+  },
+  "carryChoicePlaqueThemes": [
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-2.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-2.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-1.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-1.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-1.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-3.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-3.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-4.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-4.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-5.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-5.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-5.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-6.png"
+    },
+    {
+      "borderMode": "fixed",
+      "fixedBorder": "rgba(122, 200, 255, 0)",
+      "fillBg": "rgba(12, 10, 20, 0)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 0,
+      "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-6.png"
+    },
+    {
+      "borderMode": "neon",
+      "fixedBorder": "rgba(122, 200, 255, 0.9)",
+      "fillBg": "rgba(12, 10, 20, 0.88)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 2.5,
+      "plaqueImageUrl": ""
+    },
+    {
+      "borderMode": "neon",
+      "fixedBorder": "rgba(122, 200, 255, 0.9)",
+      "fillBg": "rgba(12, 10, 20, 0.88)",
+      "textColor": "rgba(248, 249, 255, 1)",
+      "borderWidthPx": 2.5,
+      "plaqueImageUrl": ""
+    }
+  ],
+  "carryChoicePlaqueTheme": {
+    "borderMode": "fixed",
+    "fixedBorder": "rgba(122, 200, 255, 0)",
+    "fillBg": "rgba(12, 10, 20, 0)",
+    "textColor": "rgba(248, 249, 255, 1)",
+    "borderWidthPx": 0,
+    "plaqueImageUrl": "https://srv1361159.hstgr.cloud/Game/img/quiz-carry/board-2.png"
+  },
+  "carryChoicePlaqueMapScale": 1.9,
+  "carryWalkSpeedMultForMapId": "",
+  "carryWalkSpeedMult": null,
+  "quizRoundQuestionCount": 3,
+  "questions": [
+    {
+      "text": "test1",
+      "answerTrue": true
+    },
+    {
+      "text": "test2",
+      "answerTrue": true
+    },
+    {
+      "text": "test3",
+      "answerTrue": true
+    },
+    {
+      "text": "test4",
+      "answerTrue": true
+    },
+    {
+      "text": "test5",
+      "answerTrue": true
+    },
+    {
+      "text": "test6",
+      "answerTrue": true
+    },
+    {
+      "text": "test7",
+      "answerTrue": true
+    },
+    {
+      "text": "test8",
+      "answerTrue": true
+    },
+    {
+      "text": "test9",
+      "answerTrue": true
+    },
+    {
+      "text": "test10",
+      "answerTrue": true
+    },
+    {
+      "text": "test11",
+      "answerTrue": true
+    },
+    {
+      "text": "test12",
+      "answerTrue": true
+    },
+    {
+      "text": "test13",
+      "answerTrue": true
+    },
+    {
+      "text": "test14",
+      "answerTrue": true
+    }
+  ],
+  "carryQuestions": [
+    {
+      "text": "ผู้มีอํานาจในการพิจารณาพิพากษาตัดสินคดีความในศาล",
+      "choices": [
+        "จําเลย",
+        "ผู้เสียหาย",
+        "อัยการ",
+        "ทนายความ",
+        "โจทก์",
+        "ตํารวจ",
+        "ผู้ไกล่เกลี่ย",
+        "ผู้พิพากษา",
+        "นิติกร",
+        "พยานบุคคล",
+        "หมายค้น",
+        "หมายจับ",
+        "หมายเรียก",
+        "พยานหลักฐาน"
+      ],
+      "correctIndex": 7
+    },
+    {
+      "text": "ผู้ที่ถูกกล่าวหาว่ากระทําความผิดทางอาญา และถูกฟ้องต่อศาลแล้ว",
+      "choices": [
+        "ผู้พิพากษา",
+        "โจทก์",
+        "พยานบุคคล",
+        "การประกันตัว",
+        "นิติกร",
+        "ผู้เสียหาย",
+        "สัญญา",
+        "หมายจับ",
+        "ตํารวจ",
+        "ผู้ไกล่เกลี่ย",
+        "อัยการ",
+        "ทนายความ",
+        "จําเลย",
+        "พยานหลักฐาน"
+      ],
+      "correctIndex": 12
+    }
+  ],
+  "battleQuizMcq": [
+    {
+      "categoryId": "cybercrime",
+      "text": "ฟหกฟหก",
+      "choices": [
+        "ๆไำ",
+        "ฟหฟหด",
+        "ฟหกไๆไก"
+      ],
+      "correctIndex": 0
+    }
+  ],
+  "specialQuizSets": {
+    "L1_C1": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
+          "choices": [
+            "พ.ร.บ.จราจร",
+            "พ.ร.บ.ว่าด้วยการกระทำผิดเกี่ยวกับคอมพิวเตอร์",
+            "กฎหมายแรงงาน",
+            "กฎหมายที่ดิน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานเอกสารอิเล็กทรอนิกส์",
+            "พยานแวดล้อม",
+            "ไม่ถือเป็นหลักฐาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การหลอกให้เหยื่อกรอกข้อมูล/โอนเงินผ่านข้อความหรือเว็บปลอม เรียกว่าอะไร?",
+          "choices": [
+            "ฟิชชิง (Phishing)",
+            "ดีบัก (Debug)",
+            "แบ็กอัป (Backup)",
+            "ฟอร์แมต (Format)"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ทำหน้าที่พิจารณาพิพากษาคดีในศาลคือใคร?",
+          "choices": [
+            "ทนายความ",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ตำรวจ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ถูกกล่าวหาว่ากระทำผิดและถูกฟ้องต่อศาลเรียกว่า?",
+          "choices": [
+            "โจทก์",
+            "จำเลย",
+            "พยาน",
+            "ผู้เสียหาย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เอกสารที่ศาลออกเพื่ออนุญาตให้จับกุมบุคคลเรียกว่า?",
+          "choices": [
+            "หมายค้น",
+            "หมายจับ",
+            "หมายเรียก",
+            "หมายนัด"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ว่าความและให้คำปรึกษากฎหมายแก่คู่ความคือ?",
+          "choices": [
+            "ผู้พิพากษา",
+            "ทนายความ",
+            "อัยการ",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "สถานที่ที่ใช้พิจารณาคดีเรียกว่าอะไร?",
+          "choices": [
+            "สถานีตำรวจ",
+            "ศาล",
+            "เรือนจำ",
+            "ที่ว่าการอำเภอ"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 1,
+        "th": "เพิ่มเวลาเล่นมินิเกมทันที (+10 วินาที)",
+        "en": "Time Dilation",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-1.png",
+        "txtImageUrl": "/Game/img/special-cards/card-1-txt.png"
+      }
+    },
+    "L1_C2": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การลักทรัพย์โดยใช้กำลังประทุษร้ายหรือขู่เข็ญ เป็นความผิดฐานใด?",
+          "choices": [
+            "ลักทรัพย์",
+            "ชิงทรัพย์/ปล้นทรัพย์",
+            "ยักยอกทรัพย์",
+            "ฉ้อโกง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ลายนิ้วมือที่พบในที่เกิดเหตุ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานวัตถุ",
+            "พยานเอกสาร",
+            "คำรับสารภาพ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การปล้นทรัพย์ที่ร่วมกันตั้งแต่สามคนขึ้นไป กฎหมายกำหนดโทษอย่างไร?",
+          "choices": [
+            "เบากว่าปกติ",
+            "เท่าเดิม",
+            "หนักขึ้น",
+            "ยกเว้นโทษ"
+          ],
+          "correctIndex": 2
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ทำหน้าที่พิจารณาพิพากษาคดีในศาลคือใคร?",
+          "choices": [
+            "ทนายความ",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ตำรวจ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ถูกกล่าวหาว่ากระทำผิดและถูกฟ้องต่อศาลเรียกว่า?",
+          "choices": [
+            "โจทก์",
+            "จำเลย",
+            "พยาน",
+            "ผู้เสียหาย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เอกสารที่ศาลออกเพื่ออนุญาตให้จับกุมบุคคลเรียกว่า?",
+          "choices": [
+            "หมายค้น",
+            "หมายจับ",
+            "หมายเรียก",
+            "หมายนัด"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ว่าความและให้คำปรึกษากฎหมายแก่คู่ความคือ?",
+          "choices": [
+            "ผู้พิพากษา",
+            "ทนายความ",
+            "อัยการ",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "สถานที่ที่ใช้พิจารณาคดีเรียกว่าอะไร?",
+          "choices": [
+            "สถานีตำรวจ",
+            "ศาล",
+            "เรือนจำ",
+            "ที่ว่าการอำเภอ"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 2,
+        "th": "เพิ่มเวลาในห้องพิจารณาคดี",
+        "en": "Extension",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-2.png",
+        "txtImageUrl": "/Game/img/special-cards/card-2-txt.png"
+      }
+    },
+    "L1_C3": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "ผู้ที่นำคดีอาญาขึ้นฟ้องต่อศาลแทนรัฐ เรียกว่าอะไร?",
+          "choices": [
+            "ทนายจำเลย",
+            "พนักงานอัยการ",
+            "ผู้พิพากษา",
+            "เจ้าพนักงานบังคับคดี"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการ 'สันนิษฐานว่าบริสุทธิ์ไว้ก่อน' หมายความว่าอย่างไร?",
+          "choices": [
+            "จำเลยผิดจนกว่าจะพิสูจน์ได้",
+            "จำเลยบริสุทธิ์จนกว่าจะพิสูจน์ว่าผิด",
+            "ศาลตัดสินทันที",
+            "ไม่ต้องมีพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การอุทธรณ์ หมายถึงอะไร?",
+          "choices": [
+            "การยอมรับโทษ",
+            "การขอให้ศาลสูงพิจารณาคดีใหม่",
+            "การถอนฟ้อง",
+            "การประนีประนอม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ทำหน้าที่พิจารณาพิพากษาคดีในศาลคือใคร?",
+          "choices": [
+            "ทนายความ",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ตำรวจ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ถูกกล่าวหาว่ากระทำผิดและถูกฟ้องต่อศาลเรียกว่า?",
+          "choices": [
+            "โจทก์",
+            "จำเลย",
+            "พยาน",
+            "ผู้เสียหาย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เอกสารที่ศาลออกเพื่ออนุญาตให้จับกุมบุคคลเรียกว่า?",
+          "choices": [
+            "หมายค้น",
+            "หมายจับ",
+            "หมายเรียก",
+            "หมายนัด"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ผู้ที่ว่าความและให้คำปรึกษากฎหมายแก่คู่ความคือ?",
+          "choices": [
+            "ผู้พิพากษา",
+            "ทนายความ",
+            "อัยการ",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "สถานที่ที่ใช้พิจารณาคดีเรียกว่าอะไร?",
+          "choices": [
+            "สถานีตำรวจ",
+            "ศาล",
+            "เรือนจำ",
+            "ที่ว่าการอำเภอ"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 3,
+        "th": "ห้ามเล่นมินิเกม 1 ตา",
+        "en": "Ban Card",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-3.png",
+        "txtImageUrl": "/Game/img/special-cards/card-3-txt.png"
+      }
+    },
+    "L2_C1": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
+          "choices": [
+            "พ.ร.บ.จราจร",
+            "พ.ร.บ.ว่าด้วยการกระทำผิดเกี่ยวกับคอมพิวเตอร์",
+            "กฎหมายแรงงาน",
+            "กฎหมายที่ดิน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานเอกสารอิเล็กทรอนิกส์",
+            "พยานแวดล้อม",
+            "ไม่ถือเป็นหลักฐาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การหลอกให้เหยื่อกรอกข้อมูล/โอนเงินผ่านข้อความหรือเว็บปลอม เรียกว่าอะไร?",
+          "choices": [
+            "ฟิชชิง (Phishing)",
+            "ดีบัก (Debug)",
+            "แบ็กอัป (Backup)",
+            "ฟอร์แมต (Format)"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ได้รับความเสียหายจากการกระทำผิดเรียกว่า?",
+          "choices": [
+            "จำเลย",
+            "ผู้เสียหาย",
+            "พยาน",
+            "อัยการ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การให้การโดยบุคคลที่รู้เห็นเหตุการณ์ คือพยานประเภทใด?",
+          "choices": [
+            "พยานวัตถุ",
+            "พยานบุคคล",
+            "พยานเอกสาร",
+            "พยานแวดล้อม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หมายที่ศาลออกเพื่อให้เข้าตรวจค้นสถานที่เรียกว่า?",
+          "choices": [
+            "หมายจับ",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายขัง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การที่ผู้ต้องหายอมรับว่าได้กระทำผิดจริงเรียกว่า?",
+          "choices": [
+            "การปฏิเสธ",
+            "คำรับสารภาพ",
+            "การอุทธรณ์",
+            "การไกล่เกลี่ย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เงินหรือหลักทรัพย์ที่วางเพื่อขอปล่อยตัวชั่วคราวเรียกว่า?",
+          "choices": [
+            "ค่าปรับ",
+            "หลักประกัน (ประกันตัว)",
+            "ค่าธรรมเนียมศาล",
+            "สินบน"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 4,
+        "th": "การ์ดปิดปาก",
+        "en": "Silence Card",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-4.png",
+        "txtImageUrl": "/Game/img/special-cards/card-4-txt.png"
+      }
+    },
+    "L2_C2": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การลักทรัพย์โดยใช้กำลังประทุษร้ายหรือขู่เข็ญ เป็นความผิดฐานใด?",
+          "choices": [
+            "ลักทรัพย์",
+            "ชิงทรัพย์/ปล้นทรัพย์",
+            "ยักยอกทรัพย์",
+            "ฉ้อโกง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ลายนิ้วมือที่พบในที่เกิดเหตุ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานวัตถุ",
+            "พยานเอกสาร",
+            "คำรับสารภาพ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การปล้นทรัพย์ที่ร่วมกันตั้งแต่สามคนขึ้นไป กฎหมายกำหนดโทษอย่างไร?",
+          "choices": [
+            "เบากว่าปกติ",
+            "เท่าเดิม",
+            "หนักขึ้น",
+            "ยกเว้นโทษ"
+          ],
+          "correctIndex": 2
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ได้รับความเสียหายจากการกระทำผิดเรียกว่า?",
+          "choices": [
+            "จำเลย",
+            "ผู้เสียหาย",
+            "พยาน",
+            "อัยการ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การให้การโดยบุคคลที่รู้เห็นเหตุการณ์ คือพยานประเภทใด?",
+          "choices": [
+            "พยานวัตถุ",
+            "พยานบุคคล",
+            "พยานเอกสาร",
+            "พยานแวดล้อม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หมายที่ศาลออกเพื่อให้เข้าตรวจค้นสถานที่เรียกว่า?",
+          "choices": [
+            "หมายจับ",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายขัง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การที่ผู้ต้องหายอมรับว่าได้กระทำผิดจริงเรียกว่า?",
+          "choices": [
+            "การปฏิเสธ",
+            "คำรับสารภาพ",
+            "การอุทธรณ์",
+            "การไกล่เกลี่ย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เงินหรือหลักทรัพย์ที่วางเพื่อขอปล่อยตัวชั่วคราวเรียกว่า?",
+          "choices": [
+            "ค่าปรับ",
+            "หลักประกัน (ประกันตัว)",
+            "ค่าธรรมเนียมศาล",
+            "สินบน"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 5,
+        "th": "เหรียญประกันตัว",
+        "en": "Bail Coin",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-5.png",
+        "txtImageUrl": "/Game/img/special-cards/card-5-txt.png"
+      }
+    },
+    "L2_C3": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "ผู้ที่นำคดีอาญาขึ้นฟ้องต่อศาลแทนรัฐ เรียกว่าอะไร?",
+          "choices": [
+            "ทนายจำเลย",
+            "พนักงานอัยการ",
+            "ผู้พิพากษา",
+            "เจ้าพนักงานบังคับคดี"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการ 'สันนิษฐานว่าบริสุทธิ์ไว้ก่อน' หมายความว่าอย่างไร?",
+          "choices": [
+            "จำเลยผิดจนกว่าจะพิสูจน์ได้",
+            "จำเลยบริสุทธิ์จนกว่าจะพิสูจน์ว่าผิด",
+            "ศาลตัดสินทันที",
+            "ไม่ต้องมีพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การอุทธรณ์ หมายถึงอะไร?",
+          "choices": [
+            "การยอมรับโทษ",
+            "การขอให้ศาลสูงพิจารณาคดีใหม่",
+            "การถอนฟ้อง",
+            "การประนีประนอม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "บุคคลที่ได้รับความเสียหายจากการกระทำผิดเรียกว่า?",
+          "choices": [
+            "จำเลย",
+            "ผู้เสียหาย",
+            "พยาน",
+            "อัยการ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การให้การโดยบุคคลที่รู้เห็นเหตุการณ์ คือพยานประเภทใด?",
+          "choices": [
+            "พยานวัตถุ",
+            "พยานบุคคล",
+            "พยานเอกสาร",
+            "พยานแวดล้อม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หมายที่ศาลออกเพื่อให้เข้าตรวจค้นสถานที่เรียกว่า?",
+          "choices": [
+            "หมายจับ",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายขัง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การที่ผู้ต้องหายอมรับว่าได้กระทำผิดจริงเรียกว่า?",
+          "choices": [
+            "การปฏิเสธ",
+            "คำรับสารภาพ",
+            "การอุทธรณ์",
+            "การไกล่เกลี่ย"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เงินหรือหลักทรัพย์ที่วางเพื่อขอปล่อยตัวชั่วคราวเรียกว่า?",
+          "choices": [
+            "ค่าปรับ",
+            "หลักประกัน (ประกันตัว)",
+            "ค่าธรรมเนียมศาล",
+            "สินบน"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 6,
+        "th": "รับ coin เพิ่ม",
+        "en": "Fund",
+        "rarity": "common",
+        "imageUrl": "/Game/img/special-cards/card-6.png",
+        "txtImageUrl": "/Game/img/special-cards/card-6-txt.png"
+      }
+    },
+    "L3_C1": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
+          "choices": [
+            "พ.ร.บ.จราจร",
+            "พ.ร.บ.ว่าด้วยการกระทำผิดเกี่ยวกับคอมพิวเตอร์",
+            "กฎหมายแรงงาน",
+            "กฎหมายที่ดิน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานเอกสารอิเล็กทรอนิกส์",
+            "พยานแวดล้อม",
+            "ไม่ถือเป็นหลักฐาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การหลอกให้เหยื่อกรอกข้อมูล/โอนเงินผ่านข้อความหรือเว็บปลอม เรียกว่าอะไร?",
+          "choices": [
+            "ฟิชชิง (Phishing)",
+            "ดีบัก (Debug)",
+            "แบ็กอัป (Backup)",
+            "ฟอร์แมต (Format)"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การขอให้ศาลสูงพิจารณาคดีใหม่หลังไม่พอใจคำพิพากษาเรียกว่า?",
+          "choices": [
+            "การฟ้องร้อง",
+            "การอุทธรณ์/ฎีกา",
+            "การไกล่เกลี่ย",
+            "การสืบพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักฐานที่ไม่ได้ชี้โดยตรงแต่ทำให้อนุมานข้อเท็จจริงได้เรียกว่า?",
+          "choices": [
+            "พยานแวดล้อม",
+            "พยานบุคคล",
+            "คำรับสารภาพ",
+            "พยานเอกสาร"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ระยะเวลาที่กฎหมายกำหนดให้ฟ้องคดีได้เรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "วันนัด",
+            "กำหนดโทษ",
+            "ทัณฑ์บน"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำที่ครบองค์ประกอบความผิดตามกฎหมายอาญาเรียกว่า?",
+          "choices": [
+            "การละเมิด",
+            "ความผิดอาญา",
+            "การผิดสัญญา",
+            "การละเว้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เจ้าหน้าที่ที่ทำหน้าที่สืบสวนสอบสวนคดีอาญาคือ?",
+          "choices": [
+            "พนักงานสอบสวน",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ทนายความ"
+          ],
+          "correctIndex": 0
+        }
+      ],
+      "specialCard": {
+        "cardId": 7,
+        "th": "รับหลักฐานฟรี",
+        "en": "Free Evidence",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-7.png",
+        "txtImageUrl": "/Game/img/special-cards/card--7txt.png"
+      }
+    },
+    "L3_C2": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การลักทรัพย์โดยใช้กำลังประทุษร้ายหรือขู่เข็ญ เป็นความผิดฐานใด?",
+          "choices": [
+            "ลักทรัพย์",
+            "ชิงทรัพย์/ปล้นทรัพย์",
+            "ยักยอกทรัพย์",
+            "ฉ้อโกง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ลายนิ้วมือที่พบในที่เกิดเหตุ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานวัตถุ",
+            "พยานเอกสาร",
+            "คำรับสารภาพ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การปล้นทรัพย์ที่ร่วมกันตั้งแต่สามคนขึ้นไป กฎหมายกำหนดโทษอย่างไร?",
+          "choices": [
+            "เบากว่าปกติ",
+            "เท่าเดิม",
+            "หนักขึ้น",
+            "ยกเว้นโทษ"
+          ],
+          "correctIndex": 2
+        },
+        {
+          "type": "mcq",
+          "text": "การขอให้ศาลสูงพิจารณาคดีใหม่หลังไม่พอใจคำพิพากษาเรียกว่า?",
+          "choices": [
+            "การฟ้องร้อง",
+            "การอุทธรณ์/ฎีกา",
+            "การไกล่เกลี่ย",
+            "การสืบพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักฐานที่ไม่ได้ชี้โดยตรงแต่ทำให้อนุมานข้อเท็จจริงได้เรียกว่า?",
+          "choices": [
+            "พยานแวดล้อม",
+            "พยานบุคคล",
+            "คำรับสารภาพ",
+            "พยานเอกสาร"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ระยะเวลาที่กฎหมายกำหนดให้ฟ้องคดีได้เรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "วันนัด",
+            "กำหนดโทษ",
+            "ทัณฑ์บน"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำที่ครบองค์ประกอบความผิดตามกฎหมายอาญาเรียกว่า?",
+          "choices": [
+            "การละเมิด",
+            "ความผิดอาญา",
+            "การผิดสัญญา",
+            "การละเว้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เจ้าหน้าที่ที่ทำหน้าที่สืบสวนสอบสวนคดีอาญาคือ?",
+          "choices": [
+            "พนักงานสอบสวน",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ทนายความ"
+          ],
+          "correctIndex": 0
+        }
+      ],
+      "specialCard": {
+        "cardId": 1,
+        "th": "เพิ่มเวลาเล่นมินิเกมทันที (+10 วินาที)",
+        "en": "Time Dilation",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-1.png",
+        "txtImageUrl": "/Game/img/special-cards/card-1-txt.png"
+      }
+    },
+    "L3_C3": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "ผู้ที่นำคดีอาญาขึ้นฟ้องต่อศาลแทนรัฐ เรียกว่าอะไร?",
+          "choices": [
+            "ทนายจำเลย",
+            "พนักงานอัยการ",
+            "ผู้พิพากษา",
+            "เจ้าพนักงานบังคับคดี"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการ 'สันนิษฐานว่าบริสุทธิ์ไว้ก่อน' หมายความว่าอย่างไร?",
+          "choices": [
+            "จำเลยผิดจนกว่าจะพิสูจน์ได้",
+            "จำเลยบริสุทธิ์จนกว่าจะพิสูจน์ว่าผิด",
+            "ศาลตัดสินทันที",
+            "ไม่ต้องมีพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การอุทธรณ์ หมายถึงอะไร?",
+          "choices": [
+            "การยอมรับโทษ",
+            "การขอให้ศาลสูงพิจารณาคดีใหม่",
+            "การถอนฟ้อง",
+            "การประนีประนอม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การขอให้ศาลสูงพิจารณาคดีใหม่หลังไม่พอใจคำพิพากษาเรียกว่า?",
+          "choices": [
+            "การฟ้องร้อง",
+            "การอุทธรณ์/ฎีกา",
+            "การไกล่เกลี่ย",
+            "การสืบพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักฐานที่ไม่ได้ชี้โดยตรงแต่ทำให้อนุมานข้อเท็จจริงได้เรียกว่า?",
+          "choices": [
+            "พยานแวดล้อม",
+            "พยานบุคคล",
+            "คำรับสารภาพ",
+            "พยานเอกสาร"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ระยะเวลาที่กฎหมายกำหนดให้ฟ้องคดีได้เรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "วันนัด",
+            "กำหนดโทษ",
+            "ทัณฑ์บน"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำที่ครบองค์ประกอบความผิดตามกฎหมายอาญาเรียกว่า?",
+          "choices": [
+            "การละเมิด",
+            "ความผิดอาญา",
+            "การผิดสัญญา",
+            "การละเว้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "เจ้าหน้าที่ที่ทำหน้าที่สืบสวนสอบสวนคดีอาญาคือ?",
+          "choices": [
+            "พนักงานสอบสวน",
+            "ผู้พิพากษา",
+            "เสมียนศาล",
+            "ทนายความ"
+          ],
+          "correctIndex": 0
+        }
+      ],
+      "specialCard": {
+        "cardId": 2,
+        "th": "เพิ่มเวลาในห้องพิจารณาคดี",
+        "en": "Extension",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-2.png",
+        "txtImageUrl": "/Game/img/special-cards/card-2-txt.png"
+      }
+    },
+    "L4_C1": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
+          "choices": [
+            "พ.ร.บ.จราจร",
+            "พ.ร.บ.ว่าด้วยการกระทำผิดเกี่ยวกับคอมพิวเตอร์",
+            "กฎหมายแรงงาน",
+            "กฎหมายที่ดิน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานเอกสารอิเล็กทรอนิกส์",
+            "พยานแวดล้อม",
+            "ไม่ถือเป็นหลักฐาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การหลอกให้เหยื่อกรอกข้อมูล/โอนเงินผ่านข้อความหรือเว็บปลอม เรียกว่าอะไร?",
+          "choices": [
+            "ฟิชชิง (Phishing)",
+            "ดีบัก (Debug)",
+            "แบ็กอัป (Backup)",
+            "ฟอร์แมต (Format)"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการที่ห้ามนำบุคคลมาฟ้องซ้ำในความผิดเดียวกันเรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "หลักห้ามฟ้องซ้ำ",
+            "หลักสันนิษฐานบริสุทธิ์",
+            "ภาระการพิสูจน์"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ภาระการพิสูจน์ในคดีอาญาตกอยู่ที่ฝ่ายใด?",
+          "choices": [
+            "จำเลย",
+            "โจทก์/พนักงานอัยการ",
+            "ศาล",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำผิดโดยไม่มีเจตนาแต่ขาดความระมัดระวังเรียกว่า?",
+          "choices": [
+            "เจตนา",
+            "ประมาท",
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "คำสั่งศาลให้คุมขังผู้ต้องหาระหว่างพิจารณาเรียกว่า?",
+          "choices": [
+            "หมายขัง",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายปล่อย"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การยุติข้อพิพาทโดยมีคนกลางช่วยให้ตกลงกันเรียกว่า?",
+          "choices": [
+            "การพิพากษา",
+            "การไกล่เกลี่ย",
+            "การอุทธรณ์",
+            "การบังคับคดี"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 3,
+        "th": "ห้ามเล่นมินิเกม 1 ตา",
+        "en": "Ban Card",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-3.png",
+        "txtImageUrl": "/Game/img/special-cards/card-3-txt.png"
+      }
+    },
+    "L4_C2": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การลักทรัพย์โดยใช้กำลังประทุษร้ายหรือขู่เข็ญ เป็นความผิดฐานใด?",
+          "choices": [
+            "ลักทรัพย์",
+            "ชิงทรัพย์/ปล้นทรัพย์",
+            "ยักยอกทรัพย์",
+            "ฉ้อโกง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ลายนิ้วมือที่พบในที่เกิดเหตุ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานวัตถุ",
+            "พยานเอกสาร",
+            "คำรับสารภาพ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การปล้นทรัพย์ที่ร่วมกันตั้งแต่สามคนขึ้นไป กฎหมายกำหนดโทษอย่างไร?",
+          "choices": [
+            "เบากว่าปกติ",
+            "เท่าเดิม",
+            "หนักขึ้น",
+            "ยกเว้นโทษ"
+          ],
+          "correctIndex": 2
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการที่ห้ามนำบุคคลมาฟ้องซ้ำในความผิดเดียวกันเรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "หลักห้ามฟ้องซ้ำ",
+            "หลักสันนิษฐานบริสุทธิ์",
+            "ภาระการพิสูจน์"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ภาระการพิสูจน์ในคดีอาญาตกอยู่ที่ฝ่ายใด?",
+          "choices": [
+            "จำเลย",
+            "โจทก์/พนักงานอัยการ",
+            "ศาล",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำผิดโดยไม่มีเจตนาแต่ขาดความระมัดระวังเรียกว่า?",
+          "choices": [
+            "เจตนา",
+            "ประมาท",
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "คำสั่งศาลให้คุมขังผู้ต้องหาระหว่างพิจารณาเรียกว่า?",
+          "choices": [
+            "หมายขัง",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายปล่อย"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การยุติข้อพิพาทโดยมีคนกลางช่วยให้ตกลงกันเรียกว่า?",
+          "choices": [
+            "การพิพากษา",
+            "การไกล่เกลี่ย",
+            "การอุทธรณ์",
+            "การบังคับคดี"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 4,
+        "th": "การ์ดปิดปาก",
+        "en": "Silence Card",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-4.png",
+        "txtImageUrl": "/Game/img/special-cards/card-4-txt.png"
+      }
+    },
+    "L4_C3": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "ผู้ที่นำคดีอาญาขึ้นฟ้องต่อศาลแทนรัฐ เรียกว่าอะไร?",
+          "choices": [
+            "ทนายจำเลย",
+            "พนักงานอัยการ",
+            "ผู้พิพากษา",
+            "เจ้าพนักงานบังคับคดี"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการ 'สันนิษฐานว่าบริสุทธิ์ไว้ก่อน' หมายความว่าอย่างไร?",
+          "choices": [
+            "จำเลยผิดจนกว่าจะพิสูจน์ได้",
+            "จำเลยบริสุทธิ์จนกว่าจะพิสูจน์ว่าผิด",
+            "ศาลตัดสินทันที",
+            "ไม่ต้องมีพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การอุทธรณ์ หมายถึงอะไร?",
+          "choices": [
+            "การยอมรับโทษ",
+            "การขอให้ศาลสูงพิจารณาคดีใหม่",
+            "การถอนฟ้อง",
+            "การประนีประนอม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการที่ห้ามนำบุคคลมาฟ้องซ้ำในความผิดเดียวกันเรียกว่า?",
+          "choices": [
+            "อายุความ",
+            "หลักห้ามฟ้องซ้ำ",
+            "หลักสันนิษฐานบริสุทธิ์",
+            "ภาระการพิสูจน์"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ภาระการพิสูจน์ในคดีอาญาตกอยู่ที่ฝ่ายใด?",
+          "choices": [
+            "จำเลย",
+            "โจทก์/พนักงานอัยการ",
+            "ศาล",
+            "พยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำผิดโดยไม่มีเจตนาแต่ขาดความระมัดระวังเรียกว่า?",
+          "choices": [
+            "เจตนา",
+            "ประมาท",
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "คำสั่งศาลให้คุมขังผู้ต้องหาระหว่างพิจารณาเรียกว่า?",
+          "choices": [
+            "หมายขัง",
+            "หมายค้น",
+            "หมายเรียก",
+            "หมายปล่อย"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "การยุติข้อพิพาทโดยมีคนกลางช่วยให้ตกลงกันเรียกว่า?",
+          "choices": [
+            "การพิพากษา",
+            "การไกล่เกลี่ย",
+            "การอุทธรณ์",
+            "การบังคับคดี"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 5,
+        "th": "เหรียญประกันตัว",
+        "en": "Bail Coin",
+        "rarity": "rare",
+        "imageUrl": "/Game/img/special-cards/card-5.png",
+        "txtImageUrl": "/Game/img/special-cards/card-5-txt.png"
+      }
+    },
+    "L5_C1": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การเข้าถึงระบบคอมพิวเตอร์ของผู้อื่นโดยไม่ได้รับอนุญาต ผิดกฎหมายใด?",
+          "choices": [
+            "พ.ร.บ.จราจร",
+            "พ.ร.บ.ว่าด้วยการกระทำผิดเกี่ยวกับคอมพิวเตอร์",
+            "กฎหมายแรงงาน",
+            "กฎหมายที่ดิน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ข้อมูล log การเข้าใช้งานระบบ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานเอกสารอิเล็กทรอนิกส์",
+            "พยานแวดล้อม",
+            "ไม่ถือเป็นหลักฐาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การหลอกให้เหยื่อกรอกข้อมูล/โอนเงินผ่านข้อความหรือเว็บปลอม เรียกว่าอะไร?",
+          "choices": [
+            "ฟิชชิง (Phishing)",
+            "ดีบัก (Debug)",
+            "แบ็กอัป (Backup)",
+            "ฟอร์แมต (Format)"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "พยานหลักฐานที่ได้มาโดยมิชอบด้วยกฎหมาย โดยหลักแล้วศาลจะ?",
+          "choices": [
+            "รับฟังได้เสมอ",
+            "อาจรับฟังไม่ได้ (ต้องห้าม)",
+            "ใช้ลงโทษได้ทันที",
+            "ส่งคืนเท่านั้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลัก 'ยกประโยชน์แห่งความสงสัยให้จำเลย' ใช้เมื่อใด?",
+          "choices": [
+            "เมื่อพยานชัดเจน",
+            "เมื่อมีข้อสงสัยตามสมควร",
+            "เมื่อจำเลยรับสารภาพ",
+            "เมื่ออัยการร้องขอ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การร่วมกระทำผิดโดยแบ่งหน้าที่กันทำ ถือว่าเป็น?",
+          "choices": [
+            "ตัวการร่วม",
+            "ผู้ใช้",
+            "ผู้สนับสนุน",
+            "ผู้รู้เห็น"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ความผิดที่ยอมความได้ หมายความว่า?",
+          "choices": [
+            "ฟ้องไม่ได้",
+            "ผู้เสียหายถอนคำร้องทำให้คดีระงับได้",
+            "ศาลต้องตัดสินเสมอ",
+            "ไม่มีโทษ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำเพื่อป้องกันสิทธิของตนพอสมควรแก่เหตุเรียกว่า?",
+          "choices": [
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบด้วยกฎหมาย",
+            "ความจำเป็น",
+            "ประมาท"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 6,
+        "th": "รับ coin เพิ่ม",
+        "en": "Fund",
+        "rarity": "legendary",
+        "imageUrl": "/Game/img/special-cards/card-6.png",
+        "txtImageUrl": "/Game/img/special-cards/card-6-txt.png"
+      }
+    },
+    "L5_C2": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "การลักทรัพย์โดยใช้กำลังประทุษร้ายหรือขู่เข็ญ เป็นความผิดฐานใด?",
+          "choices": [
+            "ลักทรัพย์",
+            "ชิงทรัพย์/ปล้นทรัพย์",
+            "ยักยอกทรัพย์",
+            "ฉ้อโกง"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "ลายนิ้วมือที่พบในที่เกิดเหตุ จัดเป็นพยานหลักฐานประเภทใด?",
+          "choices": [
+            "พยานบุคคล",
+            "พยานวัตถุ",
+            "พยานเอกสาร",
+            "คำรับสารภาพ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การปล้นทรัพย์ที่ร่วมกันตั้งแต่สามคนขึ้นไป กฎหมายกำหนดโทษอย่างไร?",
+          "choices": [
+            "เบากว่าปกติ",
+            "เท่าเดิม",
+            "หนักขึ้น",
+            "ยกเว้นโทษ"
+          ],
+          "correctIndex": 2
+        },
+        {
+          "type": "mcq",
+          "text": "พยานหลักฐานที่ได้มาโดยมิชอบด้วยกฎหมาย โดยหลักแล้วศาลจะ?",
+          "choices": [
+            "รับฟังได้เสมอ",
+            "อาจรับฟังไม่ได้ (ต้องห้าม)",
+            "ใช้ลงโทษได้ทันที",
+            "ส่งคืนเท่านั้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลัก 'ยกประโยชน์แห่งความสงสัยให้จำเลย' ใช้เมื่อใด?",
+          "choices": [
+            "เมื่อพยานชัดเจน",
+            "เมื่อมีข้อสงสัยตามสมควร",
+            "เมื่อจำเลยรับสารภาพ",
+            "เมื่ออัยการร้องขอ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การร่วมกระทำผิดโดยแบ่งหน้าที่กันทำ ถือว่าเป็น?",
+          "choices": [
+            "ตัวการร่วม",
+            "ผู้ใช้",
+            "ผู้สนับสนุน",
+            "ผู้รู้เห็น"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ความผิดที่ยอมความได้ หมายความว่า?",
+          "choices": [
+            "ฟ้องไม่ได้",
+            "ผู้เสียหายถอนคำร้องทำให้คดีระงับได้",
+            "ศาลต้องตัดสินเสมอ",
+            "ไม่มีโทษ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำเพื่อป้องกันสิทธิของตนพอสมควรแก่เหตุเรียกว่า?",
+          "choices": [
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบด้วยกฎหมาย",
+            "ความจำเป็น",
+            "ประมาท"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 7,
+        "th": "รับหลักฐานฟรี",
+        "en": "Free Evidence",
+        "rarity": "legendary",
+        "imageUrl": "/Game/img/special-cards/card-7.png",
+        "txtImageUrl": "/Game/img/special-cards/card--7txt.png"
+      }
+    },
+    "L5_C3": {
+      "questions": [
+        {
+          "type": "mcq",
+          "text": "ผู้ที่นำคดีอาญาขึ้นฟ้องต่อศาลแทนรัฐ เรียกว่าอะไร?",
+          "choices": [
+            "ทนายจำเลย",
+            "พนักงานอัยการ",
+            "ผู้พิพากษา",
+            "เจ้าพนักงานบังคับคดี"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลักการ 'สันนิษฐานว่าบริสุทธิ์ไว้ก่อน' หมายความว่าอย่างไร?",
+          "choices": [
+            "จำเลยผิดจนกว่าจะพิสูจน์ได้",
+            "จำเลยบริสุทธิ์จนกว่าจะพิสูจน์ว่าผิด",
+            "ศาลตัดสินทันที",
+            "ไม่ต้องมีพยาน"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การอุทธรณ์ หมายถึงอะไร?",
+          "choices": [
+            "การยอมรับโทษ",
+            "การขอให้ศาลสูงพิจารณาคดีใหม่",
+            "การถอนฟ้อง",
+            "การประนีประนอม"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "พยานหลักฐานที่ได้มาโดยมิชอบด้วยกฎหมาย โดยหลักแล้วศาลจะ?",
+          "choices": [
+            "รับฟังได้เสมอ",
+            "อาจรับฟังไม่ได้ (ต้องห้าม)",
+            "ใช้ลงโทษได้ทันที",
+            "ส่งคืนเท่านั้น"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "หลัก 'ยกประโยชน์แห่งความสงสัยให้จำเลย' ใช้เมื่อใด?",
+          "choices": [
+            "เมื่อพยานชัดเจน",
+            "เมื่อมีข้อสงสัยตามสมควร",
+            "เมื่อจำเลยรับสารภาพ",
+            "เมื่ออัยการร้องขอ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การร่วมกระทำผิดโดยแบ่งหน้าที่กันทำ ถือว่าเป็น?",
+          "choices": [
+            "ตัวการร่วม",
+            "ผู้ใช้",
+            "ผู้สนับสนุน",
+            "ผู้รู้เห็น"
+          ],
+          "correctIndex": 0
+        },
+        {
+          "type": "mcq",
+          "text": "ความผิดที่ยอมความได้ หมายความว่า?",
+          "choices": [
+            "ฟ้องไม่ได้",
+            "ผู้เสียหายถอนคำร้องทำให้คดีระงับได้",
+            "ศาลต้องตัดสินเสมอ",
+            "ไม่มีโทษ"
+          ],
+          "correctIndex": 1
+        },
+        {
+          "type": "mcq",
+          "text": "การกระทำเพื่อป้องกันสิทธิของตนพอสมควรแก่เหตุเรียกว่า?",
+          "choices": [
+            "บันดาลโทสะ",
+            "ป้องกันโดยชอบด้วยกฎหมาย",
+            "ความจำเป็น",
+            "ประมาท"
+          ],
+          "correctIndex": 1
+        }
+      ],
+      "specialCard": {
+        "cardId": 1,
+        "th": "เพิ่มเวลาเล่นมินิเกมทันที (+10 วินาที)",
+        "en": "Time Dilation",
+        "rarity": "legendary",
+        "imageUrl": "/Game/img/special-cards/card-1.png",
+        "txtImageUrl": "/Game/img/special-cards/card-1-txt.png"
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/www/html/Game/public/editor.html b/www/html/Game/public/editor.html
index 7423524..3ec44a6 100644
--- a/www/html/Game/public/editor.html
+++ b/www/html/Game/public/editor.html
@@ -402,5 +402,108 @@
   <script src="js/version.js?v=0.0258"></script>
   <script src="js/editor.js?v=0.0335"></script>
   <div class="version-tag">v —</div>
+
+  <!-- ===== QB overlay layout: map เต็มจอ + แถบเครื่องมือลอย ดัก/พับ/ปิดเปิดได้ (เพิ่มทับ ไม่แตะ editor.js) ===== -->
+  <style id="qb-editor-overlay-style">
+    .container.editor-page { max-width:none !important; width:auto !important; margin:0 !important; padding:0 !important; }
+    .editor-page > h1 { position:fixed; top:6px; left:50%; transform:translateX(-50%); margin:0; font-size:13px; font-weight:700; opacity:.45; z-index:3; pointer-events:none; letter-spacing:.5px; }
+    /* map เต็มจอ อยู่ข้างหลัง — เลื่อนดูได้ครบ (ไม่ใช้ flex-center ที่ตัดบน/ล่าง) */
+    .editor-workspace { position:fixed !important; inset:0 !important; margin:0 !important; padding:16px !important;
+      overflow:auto !important; z-index:1; text-align:center; }
+    .editor-workspace .canvas-wrap { display:inline-block; margin:0 auto; box-shadow:0 12px 50px rgba(0,0,0,.6); }
+    /* ซ่อน mock HUD ของ Tower Stack ที่ไม่เกี่ยวกับการ set ฉาก */
+    #editor-stack-hud-mock { display:none !important; }
+    .editor-workspace #editor-status { position:fixed; left:50%; bottom:6px; transform:translateX(-50%); margin:0; z-index:5;
+      background:rgba(8,12,28,.72); padding:4px 12px; border-radius:999px; font-size:12px; max-width:80vw; }
+    /* แถบเครื่องมือ = แผงโปร่งแสง ลอยทับแมป */
+    .editor-toolbar-wrap { position:fixed !important; z-index:40; margin:0 !important; padding:8px !important; overflow:auto;
+      background:rgba(10,15,32,.82) !important; -webkit-backdrop-filter:blur(9px); backdrop-filter:blur(9px);
+      border:1px solid #2a3357; box-shadow:0 10px 40px rgba(0,0,0,.55); transition:transform .2s ease; }
+    .editor-toolbar-wrap.qb-left   { top:0; left:0;  height:100vh; width:min(440px,94vw); border-radius:0 16px 16px 0; }
+    .editor-toolbar-wrap.qb-right  { top:0; right:0; height:100vh; width:min(440px,94vw); border-radius:16px 0 0 16px; }
+    .editor-toolbar-wrap.qb-top    { top:0; left:0; right:0; width:100%; max-height:48vh; border-radius:0 0 16px 16px; }
+    .editor-toolbar-wrap.qb-bottom { bottom:0; left:0; right:0; width:100%; max-height:48vh; border-radius:16px 16px 0 0; }
+    .editor-toolbar-wrap.qb-left.qb-hidden   { transform:translateX(-103%); }
+    .editor-toolbar-wrap.qb-right.qb-hidden  { transform:translateX(103%); }
+    .editor-toolbar-wrap.qb-top.qb-hidden    { transform:translateY(-103%); }
+    .editor-toolbar-wrap.qb-bottom.qb-hidden { transform:translateY(103%); }
+    .editor-toolbar-wrap.qb-left .editor-toolbar-grid, .editor-toolbar-wrap.qb-right .editor-toolbar-grid { display:flex !important; flex-direction:column; gap:8px; }
+    .editor-toolbar-wrap.qb-top .editor-toolbar-grid, .editor-toolbar-wrap.qb-bottom .editor-toolbar-grid { display:flex !important; flex-direction:row; flex-wrap:nowrap; gap:8px; overflow-x:auto; align-items:flex-start; }
+    .editor-toolbar-wrap.qb-top .editor-card, .editor-toolbar-wrap.qb-bottom .editor-card { min-width:300px; flex:0 0 auto; }
+    .editor-toolbar-wrap .editor-card { background:rgba(18,24,52,.7) !important; border:1px solid #2a3357 !important; border-radius:12px !important; padding:9px 12px !important; margin:0 !important; }
+    /* การ์ดพับได้ (กดหัวข้อ) */
+    .editor-toolbar-wrap .editor-card__title { cursor:pointer; user-select:none; display:flex; align-items:center; gap:7px; }
+    .editor-toolbar-wrap .editor-card__title::before { content:'\25BE'; font-size:.78em; opacity:.85; transition:transform .15s; }
+    .editor-toolbar-wrap .editor-card.qb-card-collapsed > *:not(.editor-card__title) { display:none !important; }
+    .editor-toolbar-wrap .editor-card.qb-card-collapsed .editor-card__title::before { transform:rotate(-90deg); }
+    /* แถบหัวคุม (ดัก/พับ) */
+    #qb-tb-head { position:sticky; top:0; z-index:3; display:flex; align-items:center; gap:6px; padding:6px 4px; margin-bottom:8px; background:rgba(10,15,32,.6); border-radius:9px; }
+    #qb-tb-head b { flex:1; font-size:13px; white-space:nowrap; color:#eef2ff; }
+    .qb-ctrl-btn { border:1px solid #2a3357; background:#0d1430; color:#eef2ff; border-radius:8px; min-width:32px; height:32px; padding:0 7px; cursor:pointer; font:inherit; font-weight:700; display:inline-grid; place-items:center; }
+    .qb-ctrl-btn:hover { filter:brightness(1.25); }
+    .qb-ctrl-btn.on { border-color:#22d3ee; background:rgba(34,211,238,.18); }
+    #qb-tb-reopen { position:fixed; z-index:42; top:10px; left:10px; display:none; box-shadow:0 6px 20px rgba(0,0,0,.4); }
+    #qb-tb-reopen.show { display:inline-grid; }
+  </style>
+  <button id="qb-tb-reopen" class="qb-ctrl-btn" type="button">🛠️ เครื่องมือ</button>
+  <script>
+  (function(){
+    var tw = document.querySelector('.editor-toolbar-wrap');
+    if(!tw){ return; }
+    var reopen = document.getElementById('qb-tb-reopen');
+    // หัวคุม
+    var hdr = document.createElement('div');
+    hdr.id = 'qb-tb-head';
+    hdr.innerHTML = '<b>🛠️ เครื่องมือฉาก</b>'+
+      '<button type="button" class="qb-ctrl-btn" data-dock="top" title="ดักบน">⬆</button>'+
+      '<button type="button" class="qb-ctrl-btn" data-dock="left" title="ดักซ้าย">⬅</button>'+
+      '<button type="button" class="qb-ctrl-btn" data-dock="right" title="ดักขวา">➡</button>'+
+      '<button type="button" class="qb-ctrl-btn" data-dock="bottom" title="ดักล่าง">⬇</button>'+
+      '<button type="button" class="qb-ctrl-btn" id="qb-tb-collapse" title="พับเก็บแถบ">✕</button>';
+    tw.insertBefore(hdr, tw.firstChild);
+
+    function setDock(d){
+      tw.classList.remove('qb-left','qb-right','qb-top','qb-bottom');
+      tw.classList.add('qb-'+d);
+      hdr.querySelectorAll('[data-dock]').forEach(function(b){ b.classList.toggle('on', b.getAttribute('data-dock')===d); });
+      try{ localStorage.setItem('qbEdDock2', d); }catch(e){}
+    }
+    function setHidden(h){
+      tw.classList.toggle('qb-hidden', h);
+      reopen.classList.toggle('show', h);
+      try{ localStorage.setItem('qbEdHidden2', h?'1':'0'); }catch(e){}
+    }
+    hdr.querySelectorAll('[data-dock]').forEach(function(b){ b.addEventListener('click', function(){ setDock(b.getAttribute('data-dock')); }); });
+    document.getElementById('qb-tb-collapse').addEventListener('click', function(){ setHidden(true); });
+    reopen.addEventListener('click', function(){ setHidden(false); });
+
+    // การ์ดแต่ละใบ กดหัวข้อเพื่อพับ/เปิด
+    function keyFor(card, title){ return title.id || (title.textContent||'').trim().slice(0,40); }
+    var cards = tw.querySelectorAll('.editor-card');
+    cards.forEach(function(card){
+      var title = card.querySelector('.editor-card__title');
+      if(!title) return;
+      title.addEventListener('click', function(){
+        card.classList.toggle('qb-card-collapsed');
+        try{
+          var st = JSON.parse(localStorage.getItem('qbEdCards2')||'{}');
+          st[keyFor(card,title)] = card.classList.contains('qb-card-collapsed')?1:0;
+          localStorage.setItem('qbEdCards2', JSON.stringify(st));
+        }catch(e){}
+      });
+    });
+
+    // คืนค่าที่จำไว้
+    var dock='left'; try{ dock=localStorage.getItem('qbEdDock2')||'left'; }catch(e){}
+    setDock(dock);
+    try{ if(localStorage.getItem('qbEdHidden2')==='1') setHidden(true); }catch(e){}
+    try{
+      var st = JSON.parse(localStorage.getItem('qbEdCards2')||'{}');
+      cards.forEach(function(card){ var t=card.querySelector('.editor-card__title'); if(t && st[keyFor(card,t)]) card.classList.add('qb-card-collapsed'); });
+    }catch(e){}
+    // ให้ editor.js คำนวณขนาด canvas ใหม่ตาม layout เต็มจอ
+    setTimeout(function(){ try{ window.dispatchEvent(new Event('resize')); }catch(e){} }, 60);
+  })();
+  </script>
 </body>
 </html>
diff --git a/www/html/Game/public/editor.html.bak-20260605-115844 b/www/html/Game/public/editor.html.bak-20260605-115844
new file mode 100644
index 0000000..7423524
--- /dev/null
+++ b/www/html/Game/public/editor.html.bak-20260605-115844
@@ -0,0 +1,406 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
+  <meta http-equiv="Pragma" content="no-cache" />
+  <title>Editor ฉาก — Game</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;800&family=Share+Tech+Mono&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="css/style.css?v=20260427-canvas-pixel">
+  <link rel="stylesheet" href="css/editor-stack-hud-mock.css?v=0.0001">
+</head>
+<body>
+  <div class="container editor-page">
+    <h1>Editor ฉาก</h1>
+    <div class="editor-toolbar-wrap">
+      <div class="editor-toolbar-grid">
+        <section class="editor-card" aria-labelledby="editor-card-game-label">
+          <h2 class="editor-card__title" id="editor-card-game-label">ประเภทเกม</h2>
+          <div class="editor-card__row">
+            <label class="editor-field-grow">เลือกโหมด
+              <select id="game-type">
+                <option value="zep">เดินอิสระ (ZEP)</option>
+                <option value="lobby">ห้องโถง (รอผู้เล่น)</option>
+                <option value="gauntlet">พรมแดงสุดท้าย (Last Light)</option>
+                <option value="frogger">กบข้ามถนน</option>
+                <option value="quiz">เกมตอบคำถาม (ถูก/ผิด)</option>
+                <option value="quiz_carry">ตอบคำถาม — หยิบคำตอบมาวางกลาง</option>
+                <option value="quiz_battle">Quiz Battle — โดม A B C (กด E)</option>
+                <option value="stack">สลับจังหวะลงตึก (Stack)</option>
+                <option value="jump_survive">กระโดดให้รอด (Jump Survival)</option>
+                <option value="space_shooter">ยิงยานอวกาศ (Space Shooter)</option>
+                <option value="balloon_boss">ลูกโป้งยิงบอส (Mega Virus)</option>
+              </select>
+            </label>
+          </div>
+          <div class="game-type-hint editor-card__hint" id="game-type-hint" role="note" aria-labelledby="editor-card-game-label"></div>
+          <div id="editor-quiz-carry-countdown-wrap" class="editor-card__row editor-card__row--wrap" style="display:none;gap:0.65rem 1rem;align-items:center;margin-top:0.45rem;" aria-label="หยิบมาวาง พรีวิวนับถอยหลัง">
+            <label class="editor-field-nogrow" style="display:flex;align-items:center;gap:0.35rem;cursor:pointer;">
+              <input type="checkbox" id="carry-embed-countdown-highlight" checked>
+              <span>พรีวิว: ไฮไลต์โซนตัวเลือกตอนนับ 3-2-1</span>
+            </label>
+            <label class="editor-field-nogrow">สีขอบไฮไลต์
+              <input type="color" id="carry-embed-countdown-color" value="#ffb44a" title="สีขอบเรืองรอบช่องตัวเลือก (ตรงกับโซนที่วาดเป็น ตัวเลือก 1–16 บนกริด)">
+            </label>
+            <label class="editor-field-grow">ตำแหน่งเลข 3-2-1
+              <select id="carry-embed-countdown-anchor" title="ตามกริด = วาดช่องในโหมด «ตำแหน่งเลข 3-2-1» · อัตโนมัติ = โซนทองหรือโซนกลาง">
+                <option value="grid">ตามกริดที่วาด (โหมดวาดด้านล่าง)</option>
+                <option value="map" selected>บนแมป — โซนทอง (คำถาม) หรือโซนกลาง</option>
+                <option value="screen">กลางจอ (ม่านทึบ)</option>
+              </select>
+            </label>
+          </div>
+        </section>
+
+        <section class="editor-card" aria-labelledby="editor-card-map-label">
+          <h2 class="editor-card__title" id="editor-card-map-label">โหลด / ตั้งชื่อฉาก</h2>
+          <div class="editor-card__row editor-card__row--wrap">
+            <label>แก้จากฉากเดิม <select id="map-load"><option value="">โหลดรายการ...</option></select></label>
+            <button type="button" id="btn-load">โหลดฉาก</button>
+            <label class="editor-field-grow">ชื่อฉาก <input type="text" id="map-name" placeholder="ชื่อฉาก (ไม่ซ้ำ)"></label>
+          </div>
+        </section>
+
+        <section class="editor-card" aria-labelledby="editor-card-grid-label">
+          <h2 class="editor-card__title" id="editor-card-grid-label">ขนาดกริด</h2>
+          <div class="editor-card__row editor-card__row--wrap">
+            <label>กว้าง <input type="number" id="map-w" value="20" min="10" max="50"></label>
+            <label>สูง <input type="number" id="map-h" value="15" min="10" max="40"></label>
+            <label>ขนาดไทล์ <input type="number" id="tile-size" value="32" min="16" max="64"></label>
+            <label title="ลงจากมุมซ้ายบนของจุดเกิด — เน้นขยายแนวตั้งก่อน (เช่น 4 = สูง 4 ช่อง)">ตัวละคร สูง (แนวตั้ง) <input type="number" id="character-cells-h" value="1" min="1" max="4"></label>
+            <label title="ไปทางขวาจากมุมซ้ายบน — แนวนอน">× กว้าง (แนวนอน) <input type="number" id="character-cells-w" value="1" min="1" max="4"></label>
+            <div class="editor-footprint-row editor-footprint-row--wall" role="group" aria-labelledby="editor-fp-wall-head">
+              <div id="editor-fp-wall-head" class="editor-footprint-row__head">ชนกำแพง · กล่องตรวจ</div>
+              <label class="editor-footprint-row__field" title="เฉพาะกำแพง (โหมดวาดกำแพง / objects = เดินไม่ได้) — แนวนอนกลางใต้ร่าง · เล็กกว่าตัว = หัว/ลำตัวทับสไปรต์กำแพงได้ · โซน interactive / hub / อื่น ๆ ใช้ขนาดตัวด้านบน" aria-describedby="editor-character-collision-hint">กว้าง <input type="number" id="character-collision-w" value="1" min="1" max="4" aria-label="ชนกำแพง กว้าง (ช่องกริด)"></label>
+              <label class="editor-footprint-row__field" title="เฉพาะกำแพง — สูงจากเท้าขึ้นมา · น้อยกว่าสูงตัว = ส่วนบนไม่ชนกำแพง · โซนอื่นใช้สูงตัวด้านบน" aria-describedby="editor-character-collision-hint">× สูง <input type="number" id="character-collision-h" value="1" min="1" max="4" aria-label="ชนกำแพง สูงจากเท้า (ช่องกริด)"></label>
+            </div>
+            <div class="editor-footprint-row editor-footprint-row--no-overlap" role="group" aria-labelledby="editor-fp-nooverlap-head">
+              <div id="editor-fp-nooverlap-head" class="editor-footprint-row__head">โซนห้ามซ้อน · กล่องตรวจ</div>
+              <label class="editor-footprint-row__field" title="กล่องตรวจทับโซน «ห้ามซ้อนผู้เล่น» (เทียบชนกำแพง) — แนวนอนกลางใต้ร่าง · 0 = เต็มความกว้างตัว" aria-describedby="editor-character-collision-hint">กว้าง <input type="number" id="block-player-separation-w" value="0" min="0" max="4" step="1" aria-label="โซนห้ามซ้อน กว้างกล่องตรวจ (ช่องกริด)"></label>
+              <label class="editor-footprint-row__field" title="กล่องตรวจทับโซน «ห้ามซ้อนผู้เล่น» — สูงจากเท้าขึ้นมา · 0 = เต็มสูงตัว" aria-describedby="editor-character-collision-hint">× สูง <input type="number" id="block-player-separation-h" value="0" min="0" max="4" step="1" aria-label="โซนห้ามซ้อน สูงกล่องตรวจจากเท้า (ช่องกริด)"></label>
+            </div>
+            <button type="button" id="btn-new">สร้างกริดใหม่</button>
+            <p id="editor-character-collision-hint" class="editor-card__hint" style="margin:0.4rem 0 0;width:100%;max-width:44rem;line-height:1.45;">
+              <strong>ชนกำแพง กว้าง×สูง</strong> ใช้แค่ตรวจชน <strong>กำแพง</strong> (ช่องวาด «กำแพง») เท่านั้น
+              · <strong>interactive</strong> · <strong>โซนห้ามซ้อน</strong> · <strong>hub / ส่งคำตอบ quiz carry</strong> · โซนคำถาม/ตัวเลือก ฯลฯ ยังใช้พื้นที่ตัวละครตาม
+              <strong>สูง (แนวตั้ง) × กว้าง (แนวนอน)</strong> เหมือนเดิม — ในเกม (<code>play.js</code>) แยกฟังก์ชันชนกำแพงกับ footprint โซนแล้ว · <strong>ห้ามซ้อน กว้าง×สูง</strong> = กำหนดกล่องตรวจทับโซนห้ามซ้อน (ชิดเท้า+กลางแนวนอน เหมือนชนกำแพง) ไม่ใช่การขยายรอบร่าง
+            </p>
+          </div>
+        </section>
+
+        <section class="editor-card editor-card--wide" aria-labelledby="editor-card-draw-label">
+          <h2 class="editor-card__title" id="editor-card-draw-label">เครื่องมือวาด</h2>
+          <p class="editor-draw-build-hint" style="margin:0 0 0.4rem;font-size:0.74rem;color:#9ece6a;line-height:1.35;">มีโหมด <strong>รูปบนกริด</strong> ในเมนู «โหมดวาด» — ถ้าไม่เห็นข้อความนี้หรือไม่มีเมนูนั้น = หน้าเว็บยังเป็นไฟล์เก่า (ลอง <strong>Ctrl+F5</strong> หรืออัปโหลด <code>editor.html</code> / <code>js/editor.js</code> ขึ้นเซิร์ฟใหม่)</p>
+          <div class="editor-card__row editor-card__row--wrap">
+            <label class="editor-field-drawmode">โหมดวาด
+              <select id="draw-mode" title="จัดกลุ่มตามประเภท — ตัวเลือกที่ไม่ใช้กับโหมดเกมจะถูกซ่อน">
+                <optgroup label="พื้นฐาน / ทุกโหมด">
+                  <option value="wall">กำแพง (เดินไม่ได้)</option>
+                  <option value="noOverlap">โซนห้ามซ้อนผู้เล่น</option>
+                  <option value="cellImage">รูปบนกริด (อัปโหลด / เลือกจากคลัง)</option>
+                  <option value="interactive">โซน interactive (จุดกด/ใช้ได้)</option>
+                  <option value="customizeSpot">จุดห้องแต่งตัว (เดินไปกด F — คลิกซ้ายวาง / ขวาลบ)</option>
+                  <option value="hostConsoleSpot" id="draw-mode-option-host-console">จุดตั้งค่าโฮสต์ (Host กด F — คลิกซ้ายวาง / ขวาลบ)</option>
+                  <option value="spawnArea" id="draw-mode-option-spawn-area">พื้นที่สุ่มจุดเกิด (ฟ้า — ผู้เล่นใหม่สุ่มในช่องนี้)</option>
+                  <option value="lobbyPlayerSpawn" id="draw-mode-option-lobby-spawn" hidden>จุดเกิดผู้เล่น 1–6 (ลำดับเข้า P1…P6)</option>
+                  <option value="startGame" id="draw-mode-option-start-game">พื้นที่เริ่มเกม (host ยืนแล้วกดเริ่มได้)</option>
+                  <option value="color">สีช่อง (ทาสีบนกริด)</option>
+                </optgroup>
+                <optgroup label="พรมแดงสุดท้าย">
+                  <option value="gauntletPlayerSpawn" id="draw-mode-option-gauntlet-player-spawn" hidden>ลำดับเกิด 1–6 (คลิกซ้ายตามลำดับ)</option>
+                  <option value="gauntletLaserStart" id="draw-mode-option-gauntlet-laser-start" hidden>เลเซอร์: แถวต้น (ขอบบนของแถบ)</option>
+                  <option value="gauntletLaserEnd" id="draw-mode-option-gauntlet-laser-end" hidden>เลเซอร์: แถวปลาย (ขอบล่างของแถบ)</option>
+                </optgroup>
+                <optgroup label="Stack">
+                  <option value="stackRelease" id="draw-mode-option-stack-release" hidden>จุดปล่อยตึก (crane / ด้านบน)</option>
+                  <option value="stackLand" id="draw-mode-option-stack-land" hidden>จุดซ้อนตึก (แพลตฟอร์มรองรับ)</option>
+                </optgroup>
+                <optgroup label="ตอบคำถาม (ยืนโซน ถูก/ผิด)">
+                  <option value="quizTrue" id="draw-mode-option-quiz-true">โซน ถูก (ตอบ จริง)</option>
+                  <option value="quizFalse" id="draw-mode-option-quiz-false">โซน ผิด (ตอบ เท็จ)</option>
+                  <option value="quizQuestion" id="draw-mode-option-quiz-question">พื้นที่โชว์ข้อความคำถาม</option>
+                </optgroup>
+                <optgroup label="Quiz Battle">
+                  <option value="quizBattlePath" id="draw-mode-option-quiz-battle-path" hidden>เส้นทางเดิน (ม่วง — วาดอย่างน้อย 1 ช่อง = จำกัดเดินเฉพาะเส้นทาง)</option>
+                  <option value="quizBattleDome" id="draw-mode-option-quiz-battle-dome" hidden>โดมคำถาม (ช่องกด E ในเกม)</option>
+                </optgroup>
+                <optgroup label="กระโดดให้รอด">
+                  <option value="jumpSurvivePlatform1" id="draw-mode-option-jump-platform-1" hidden>แพลตฟอร์ม 1 (ยืนได้ — รูปช่อง 1 จาก Admin)</option>
+                  <option value="jumpSurvivePlatform2" id="draw-mode-option-jump-platform-2" hidden>แพลตฟอร์ม 2 (ยืนได้ — รูปช่อง 2 จาก Admin)</option>
+                  <option value="jumpSurvivePlatform3" id="draw-mode-option-jump-platform-3" hidden>แพลตฟอร์ม 3 (ยืนได้ — รูปช่อง 3 จาก Admin)</option>
+                  <option value="jumpSurviveHazard" id="draw-mode-option-jump-hazard" hidden>โซนตาย (แดง — ตัวละครโดนกล่องชนแล้วตายทันที)</option>
+                </optgroup>
+                <optgroup label="ยิงยานอวกาศ">
+                  <option value="shooterSpawnPaint" id="draw-mode-option-shooter-spawn" hidden>จุดเกิดยาน ผู้เล่น 1–6 (เลือกช่อง P ด้านขวา)</option>
+                </optgroup>
+                <optgroup label="ลูกโป้งยิงบอส">
+                  <option value="balloonBossPlayerPaint" id="draw-mode-option-balloon-boss-player" hidden>จุดเกิดผู้เล่น 1–6 (เลือก P ด้านขวา)</option>
+                  <option value="balloonBossBossPaint" id="draw-mode-option-balloon-boss-boss" hidden>จุดเกิดบอส (คลิกช่องเดียว — กลางจอในเกม)</option>
+                </optgroup>
+                <optgroup label="หยิบมาวาง (โซนกลาง + ตัวเลขช่อง)">
+                  <option value="quizCarryHub" id="draw-mode-option-quiz-carry-hub" class="quiz-carry-mode-opt" hidden>โซนกลาง (วางคำตอบ + โชว์คำถาม)</option>
+                  <option value="quizCarryOpt1" class="quiz-carry-mode-opt" hidden>ตัวเลือก 1</option>
+                  <option value="quizCarryOpt2" class="quiz-carry-mode-opt" hidden>ตัวเลือก 2</option>
+                  <option value="quizCarryOpt3" class="quiz-carry-mode-opt" hidden>ตัวเลือก 3</option>
+                  <option value="quizCarryOpt4" class="quiz-carry-mode-opt" hidden>ตัวเลือก 4</option>
+                  <option value="quizCarryOpt5" class="quiz-carry-mode-opt" hidden>ตัวเลือก 5</option>
+                  <option value="quizCarryOpt6" class="quiz-carry-mode-opt" hidden>ตัวเลือก 6</option>
+                  <option value="quizCarryOpt7" class="quiz-carry-mode-opt" hidden>ตัวเลือก 7</option>
+                  <option value="quizCarryOpt8" class="quiz-carry-mode-opt" hidden>ตัวเลือก 8</option>
+                  <option value="quizCarryOpt9" class="quiz-carry-mode-opt" hidden>ตัวเลือก 9</option>
+                  <option value="quizCarryOpt10" class="quiz-carry-mode-opt" hidden>ตัวเลือก 10</option>
+                  <option value="quizCarryOpt11" class="quiz-carry-mode-opt" hidden>ตัวเลือก 11</option>
+                  <option value="quizCarryOpt12" class="quiz-carry-mode-opt" hidden>ตัวเลือก 12</option>
+                  <option value="quizCarryOpt13" class="quiz-carry-mode-opt" hidden>ตัวเลือก 13</option>
+                  <option value="quizCarryOpt14" class="quiz-carry-mode-opt" hidden>ตัวเลือก 14</option>
+                  <option value="quizCarryOpt15" class="quiz-carry-mode-opt" hidden>ตัวเลือก 15</option>
+                  <option value="quizCarryOpt16" class="quiz-carry-mode-opt" hidden>ตัวเลือก 16</option>
+                  <option value="carryEmbedCountdown" class="quiz-carry-mode-opt" hidden>ตำแหน่งเลข 3-2-1 (กริด cyan · พรีวิว embed)</option>
+                </optgroup>
+              </select>
+            </label>
+            <span id="cell-color-wrap" class="editor-cell-color" style="display:none;">
+              <label>สี <input type="color" id="cell-color" value="#24283b" title="สี"></label>
+              <label>Alpha <input type="range" id="cell-alpha" min="0" max="100" value="100" title="ความโปร่งใส 0=ใส 100=ทึบ"> <span id="cell-alpha-value">100</span>%</label>
+            </span>
+            <div id="editor-grid-image-tools" class="editor-grid-image-tools" style="display:none;">
+              <div class="editor-grid-image-size-row">
+                <label>กว้าง (ช่อง) <input type="number" id="grid-image-brush-w" value="1" min="1" max="24" title="จำนวนช่องกริดแนวนอน"></label>
+                <label>สูง (ช่อง) <input type="number" id="grid-image-brush-h" value="1" min="1" max="24" title="จำนวนช่องกริดแนวตั้ง"></label>
+              </div>
+              <div id="grid-sprite-carry-bind-wrap" class="editor-grid-image-carry-bind-row" style="display:none;" title="quiz carry: สไปรต์ที่ไม่ทับช่องโซนตัวเลือก — ต้องผูกข้อเองถึงจะสลับรูปหยิบแล้ว">
+                <label>ผูกสไปรต์กับข้อ (หยิบแล้ว)
+                  <select id="grid-sprite-carry-bind">
+                    <option value="auto">อัตโนมัติ (ช่องที่ทับโซนตัวเลือก)</option>
+                    <option value="1">ข้อ 1</option>
+                    <option value="2">ข้อ 2</option>
+                    <option value="3">ข้อ 3</option>
+                    <option value="4">ข้อ 4</option>
+                    <option value="5">ข้อ 5</option>
+                    <option value="6">ข้อ 6</option>
+                    <option value="7">ข้อ 7</option>
+                    <option value="8">ข้อ 8</option>
+                    <option value="9">ข้อ 9</option>
+                    <option value="10">ข้อ 10</option>
+                    <option value="11">ข้อ 11</option>
+                    <option value="12">ข้อ 12</option>
+                    <option value="13">ข้อ 13</option>
+                    <option value="14">ข้อ 14</option>
+                    <option value="15">ข้อ 15</option>
+                    <option value="16">ข้อ 16</option>
+                  </select>
+                </label>
+                <span class="editor-hint-inline">Alt+คลิกซ้ายบนสไปรต์ = ใส่/เปลี่ยนผูก · รายการ &quot;อัตโนมัติ&quot; = ล้างผูก</span>
+              </div>
+              <div class="editor-grid-image-gallery-wrap">
+                <span class="editor-grid-image-gallery-label">คลังรูป (คลิกเลือก)</span>
+                <p class="editor-grid-image-gallery-note">สองช่องคือรูปที่บันทึกในแมป (ก่อนหยิบ / หยิบแล้ว) — ไม่อัปเดตตามการหยิบในห้อง · ทดสอบ idle/held ให้เปิดหน้าเล่น หลังบันทึกแมป</p>
+                <div id="grid-cell-image-gallery" class="grid-cell-image-gallery" role="listbox" aria-label="คลังรูปบนกริด"></div>
+              </div>
+              <div class="editor-grid-image-upload-row">
+                <label>อัปโหลดเข้าคลัง <input type="file" id="grid-cell-image-upload" accept="image/*"></label>
+                <input type="file" id="grid-cell-image-held-upload" accept="image/*" hidden tabindex="-1" aria-hidden="true" title="อัปโหลดรูปตอนถือ (quiz carry)">
+                <button type="button" id="btn-grid-image-remove-from-lib" title="ลบรูปที่เลือกในคลัง (สไปรต์ที่ใช้รูปนี้จะหาย)">ลบจากคลัง</button>
+              </div>
+            </div>
+            <label class="editor-toggle" title="ปิด = ไม่วาดกริด/ช่องฉาก แต่ยังแสดงรูปที่วาดบนกริด · Off = hide tile grid, grid images still show"><input type="checkbox" id="show-map-in-game" checked> โชว์กริดในเกม</label>
+            <button type="button" id="btn-clear-gauntlet-spawns" hidden title="ล้างรายการจุดเกิดพรมแดงที่กำหนดเอง">ล้างลำดับ 1–6</button>
+            <button type="button" id="btn-clear-gauntlet-laser-span" hidden title="ล้างช่วงแนวตั้งของเลเซอร์ — กลับไปเต็มความสูงแมป (ไม่ต้องเปลี่ยนรูปจาก Admin)">ล้างช่วง laser</button>
+            <label id="shooter-slot-paint-wrap" class="editor-field-grow" style="display:none;" title="ช่องผู้เล่นลำดับที่ 1–6 ตรงกับคนในเกม (คุณ = ลำดับแรกจาก join)">ช่องเกิดยาน P
+              <select id="shooter-slot-paint">
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+              </select>
+            </label>
+            <label id="balloon-boss-slot-paint-wrap" class="editor-field-grow" style="display:none;" title="ลำดับ P1–P6 เหมือนยิงยาน">ช่องเกิดผู้เล่น P
+              <select id="balloon-boss-slot-paint">
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+              </select>
+            </label>
+            <button type="button" id="btn-clear-shooter-spawns" hidden title="ล้างจุดเกิดยานทั้งหมด">ล้างจุดเกิดยาน</button>
+            <button type="button" id="btn-clear-balloon-boss-spawns" hidden title="ล้างจุดเกิดผู้เล่น + บอส">ล้างจุดเกิดบอสโหมด</button>
+            <div id="lobby-spawn-wrap" class="editor-card__row" style="display:none;flex-wrap:wrap;gap:0.35rem 0.75rem;align-items:center;width:100%;">
+              <label class="editor-field-grow" title="ใช้เมื่อเข้าห้อง/ทดลองเล่น (ไม่รวมพรมแดง·ยิงยาน·บอส·กบที่มีจุดเกิดแยก)">จุดเกิดผู้เล่น
+                <select id="lobby-spawn-mode">
+                  <option value="random">สุ่มในพื้นที่ฟ้า — ไม่มีฟ้าใช้ปุ่มตั้งจุดเกิด</option>
+                  <option value="fixed">คงที่ — จุดเดียว (ปุ่มตั้งจุดเกิด)</option>
+                  <option value="slots6">6 จุดตามลำดับเข้า (P1…P6)</option>
+                </select>
+              </label>
+            </div>
+            <label id="lobby-slot-paint-wrap" class="editor-field-grow" style="display:none;" title="คนแรกที่เข้าห้อง = P1 ตามลำดับ join">ช่องเกิด P
+              <select id="lobby-slot-paint">
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+              </select>
+            </label>
+            <button type="button" id="btn-clear-lobby-spawns" hidden title="ล้างจุด P1–P6 บนแผนที่">ล้างจุด P1–P6</button>
+            <button type="button" id="btn-spawn">ตั้งจุดเกิด</button>
+          </div>
+          <div class="editor-card__row editor-card__row--actions">
+            <button type="button" id="btn-save" class="editor-btn-primary">บันทึกฉาก</button>
+            <button type="button" id="btn-play-test" title="บันทึกฉากแล้วเท่านั้น — เปิดแท็บใหม่เล่นทดสอบด้วยตัวละครตัวแรกที่สร้าง (จาก /Game/character.html)">ทดลองเล่น</button>
+          </div>
+        </section>
+      </div>
+
+    <div id="frogger-lanes-wrap" class="frogger-lanes" style="display:none;">
+      <h3 id="frogger-lanes-title">ตั้งค่าแถว — กบข้ามถนน</h3>
+      <p class="legend" id="frogger-lanes-legend">แถวบน (y=0) = ปลายทาง · แถวล่าง = จุดเกิด · ถนน/น้ำ ตั้งความเร็ว ทิศทาง และ <strong>ระยะห่าง</strong> (ยิ่งมากยิ่งห่าง เกมง่ายขึ้น)</p>
+      <div id="frogger-lanes-table"></div>
+    </div>
+
+    <section class="editor-card editor-card--bg" aria-labelledby="editor-card-bg-label">
+      <h2 class="editor-card__title" id="editor-card-bg-label">พื้นหลัง</h2>
+      <div class="editor-card__row editor-card__row--wrap">
+        <label>รูปแผนที่ <input type="file" id="bg-image" accept="image/*"></label>
+        <button type="button" id="btn-clear-bg">ลบรูปพื้นหลัง</button>
+      </div>
+      <div id="editor-stack-tower-vertical-bg-block" class="editor-bg-scroll-block" hidden>
+        <p class="legend" style="margin:0.45rem 0 0.35rem;line-height:1.45"><strong>พื้นหลังแนวตั้ง (Stack Tower)</strong> ฉาก <code>mnn93hpi</code> — <strong>รูปแรก</strong> = ช่วงเริ่ม (intro) · <strong>รูปที่สอง</strong> = ไทล์วนลูป (loop) · เปิดแล้วใช้แทนรูปแผนที่เดียวในเกม · ความเร็ว 0 = ไม่เลื่อนอัตโนมัติ — ตั้ง <strong>ทุกกี่ชั้น</strong> แล้วเลื่อนแถบขึ้นทีละขั้น (แอนิเมชัน) · <em>English:</em> Speed 0 = no auto-scroll; optional step scroll every N placed blocks.</p>
+        <div class="editor-card__row editor-card__row--wrap" style="align-items:center;gap:0.75rem 1rem">
+          <label class="editor-bg-scroll-check"><input type="checkbox" id="editor-stack-tower-vbg-enabled"> ใช้ intro + loop แนวตั้ง / Use vertical strip BG</label>
+          <label title="0 = นิ่ง (ไม่เลื่อนอัตโนมัติ)">ความเร็ว px/s <input type="number" id="editor-stack-tower-vbg-speed" min="0" max="400" step="4" value="0" style="width:5rem"></label>
+          <label>ทิศทาง
+            <select id="editor-stack-tower-vbg-direction">
+              <option value="down" selected>บน → ล่าง</option>
+              <option value="up">ล่าง → บน</option>
+            </select>
+          </label>
+        </div>
+        <div class="editor-card__row editor-card__row--wrap" style="align-items:center;gap:0.75rem 1rem;margin-top:0.35rem">
+          <label title="0 = ปิดการเลื่อนเป็นขั้น">เลื่อนทุก N ชั้น / Step every N layers <input type="number" id="editor-stack-tower-vbg-step-layers" min="0" max="200" step="1" value="0" style="width:4rem"></label>
+          <label title="0 = ใช้ความสูงไทล์ loop บนจอ">ขั้น px (0=สูง loop) / Step px <input type="number" id="editor-stack-tower-vbg-step-px" min="0" max="8000" step="8" value="0" style="width:4.5rem"></label>
+          <label>ระยะเวลาแอนิเมชัน ms <input type="number" id="editor-stack-tower-vbg-step-anim-ms" min="120" max="4000" step="20" value="520" style="width:4.5rem"></label>
+        </div>
+        <div class="editor-card__row editor-card__row--wrap" style="align-items:center;gap:0.75rem 1rem;margin-top:0.2rem">
+          <label title="เว้นว่าง = ใช้จุดปล่อยจากโซนวาดบนแผนที่ · ตัวเลข = ระยะห่างจุดยึดเชือกเหนือขอบบนของบล็อกบนสุด (world px)">ช่องว่างปล่อยเหนือบล็อกบนสุด (world px, ว่าง=ค่าแมป) <input type="number" id="editor-stack-tower-vbg-release-gap" min="0" max="800" step="2" value="" placeholder="—" style="width:4.2rem" title="Release rope gap above top block"></label>
+        </div>
+        <div class="editor-card__row editor-card__row--wrap" style="margin-top:0.35rem">
+          <label>รูปเริ่ม (intro) <input type="file" id="editor-stack-tower-vbg-intro-file" accept="image/*"></label>
+          <label>รูปลูป (loop) <input type="file" id="editor-stack-tower-vbg-loop-file" accept="image/*"></label>
+          <button type="button" id="editor-stack-tower-vbg-reset-assets">คืนรูปเริ่มจากเซิร์ฟ / Reset to bundled</button>
+        </div>
+      </div>
+      <div id="editor-bg-scroll-block" class="editor-bg-scroll-block" hidden>
+        <p class="legend" style="margin:0.5rem 0 0.35rem;line-height:1.45"><strong>เลื่อนพื้นหลังแนวตั้ง</strong> (เฉพาะฉากรหัส <code>mnpz6rkp</code>) — รูป intro ต่อด้วย loop · บันทึกฉากแล้วหน้าเล่นใช้ค่าเดียวกัน · <em>English:</em> Intro + looping strip; saved in map JSON.</p>
+        <div class="editor-card__row editor-card__row--wrap" style="align-items:center;gap:0.75rem 1rem">
+          <label class="editor-bg-scroll-check"><input type="checkbox" id="editor-bg-scroll-enabled"> เปิดเลื่อน / Enable scroll</label>
+          <label>ความเร็ว px/s <input type="number" id="editor-bg-scroll-speed" min="8" max="400" step="4" value="56" style="width:5rem" title="ความเร็วการเลื่อนแนวตั้ง"></label>
+          <label>ทิศทาง
+            <select id="editor-bg-scroll-direction" title="เริ่มชิดล่าง intro แล้วเลื่อนเข้า loop ใต้ intro — ล่าง→บน = พิกเซลไหลขึ้น · บน→ล่าง = พลิกมุมมองในกรอบจอให้ไหลลง (strip เดิม)">
+              <option value="up" selected>ล่าง → บน (ไหลขึ้น)</option>
+              <option value="down">บน → ล่าง (ไหลลง)</option>
+            </select>
+          </label>
+        </div>
+        <div class="editor-card__row editor-card__row--wrap" style="margin-top:0.35rem">
+          <label>รูปต้นทาง (intro) <input type="file" id="editor-bg-scroll-intro-file" accept="image/*"></label>
+          <label>รูปลูป (loop) <input type="file" id="editor-bg-scroll-loop-file" accept="image/*"></label>
+          <button type="button" id="editor-bg-scroll-reset-assets">คืนรูปเริ่มจากเซิร์ฟ / Reset to bundled</button>
+        </div>
+      </div>
+      <div id="editor-gauntlet-runway-bg-block" class="editor-bg-scroll-block" hidden>
+        <p class="legend" style="margin:0.5rem 0 0.35rem;line-height:1.45"><strong>พื้นหลังรันเวย์แนวนอน</strong> (เฉพาะฉากรหัส <code>mno9kb07</code> + โหมดพรมแดง) — รูป 1 = จุดเริ่ม (START) แล้วเลื่อนไปวนรูป 2–4 ระหว่างเล่น · พอหมดเวลาหรือเหลือผู้เล่นคนสุดท้าย (หลายคน) จะซ่อนอุปสรรค์แล้วแสดงรูปที่ 5 (FINISH) · บันทึกเป็น <code>gauntletCrownRunwayBg</code> ในแมป · <em>English:</em> Horizontal strip: start → loop images 2–4 → finish; obstacles hidden on end.</p>
+        <div class="editor-card__row editor-card__row--wrap" style="align-items:center;gap:0.75rem 1rem">
+          <label class="editor-bg-scroll-check"><input type="checkbox" id="editor-gauntlet-runway-bg-enabled" checked> เปิดเลื่อน / Enable runway BG</label>
+          <label>ความเร็ว px/s <input type="number" id="editor-gauntlet-runway-bg-speed" min="8" max="400" step="4" value="48" style="width:5rem" title="ความเร็วเลื่อนแนวนอน (จอ)"></label>
+          <label title="จุดเกิด (คอลัมน์ซ้ายสุด) เทียบตำแหน่งในแถบรูป START — เก็บเป็น runwaySpawnAlignFrac ในแมป">จุดเกิด vs START (0.02–0.95) <input type="number" id="editor-gauntlet-runway-bg-align-frac" min="0.02" max="0.95" step="0.01" value="0.32" style="width:4.2rem"></label>
+        </div>
+        <div class="editor-card__row editor-card__row--wrap" style="margin-top:0.35rem">
+          <label>รูปเริ่ม (1) <input type="file" id="editor-gauntlet-runway-bg-start-file" accept="image/*"></label>
+          <label>รูปลูป (2) <input type="file" id="editor-gauntlet-runway-bg-loop2-file" accept="image/*"></label>
+          <label>รูปลูป (3) <input type="file" id="editor-gauntlet-runway-bg-loop3-file" accept="image/*"></label>
+          <label>รูปลูป (4) <input type="file" id="editor-gauntlet-runway-bg-loop4-file" accept="image/*"></label>
+          <label>รูปจบ (5) <input type="file" id="editor-gauntlet-runway-bg-finish-file" accept="image/*"></label>
+          <button type="button" id="editor-gauntlet-runway-bg-reset-assets">คืนรูปเริ่มจากเซิร์ฟ / Reset to bundled</button>
+        </div>
+        <div id="editor-gauntlet-runway-bg-previews" class="legend" style="margin-top:0.45rem;display:flex;flex-wrap:nowrap;gap:0.45rem 0.55rem;align-items:flex-end;overflow-x:auto;padding-bottom:2px;max-width:100%" aria-label="พรีวิวรูปรันเวย์ที่ใช้จริง (รวมค่าเริ่มจากเซิร์ฟถ้ายังไม่อัปโหลด)">
+          <figure style="margin:0;text-align:center"><figcaption style="font-size:0.72rem;opacity:0.9">1 START</figcaption><img id="editor-gauntlet-runway-bg-prev-0" width="128" height="72" alt="" style="display:block;width:128px;height:72px;object-fit:cover;border:1px solid #3d3f52;border-radius:6px;background:#1a1b26"></figure>
+          <figure style="margin:0;text-align:center"><figcaption style="font-size:0.72rem;opacity:0.9">2 LOOP</figcaption><img id="editor-gauntlet-runway-bg-prev-1" width="128" height="72" alt="" style="display:block;width:128px;height:72px;object-fit:cover;border:1px solid #3d3f52;border-radius:6px;background:#1a1b26"></figure>
+          <figure style="margin:0;text-align:center"><figcaption style="font-size:0.72rem;opacity:0.9">3 LOOP</figcaption><img id="editor-gauntlet-runway-bg-prev-2" width="128" height="72" alt="" style="display:block;width:128px;height:72px;object-fit:cover;border:1px solid #3d3f52;border-radius:6px;background:#1a1b26"></figure>
+          <figure style="margin:0;text-align:center"><figcaption style="font-size:0.72rem;opacity:0.9">4 LOOP</figcaption><img id="editor-gauntlet-runway-bg-prev-3" width="128" height="72" alt="" style="display:block;width:128px;height:72px;object-fit:cover;border:1px solid #3d3f52;border-radius:6px;background:#1a1b26"></figure>
+          <figure style="margin:0;text-align:center"><figcaption style="font-size:0.72rem;opacity:0.9">5 FINISH</figcaption><img id="editor-gauntlet-runway-bg-prev-4" width="128" height="72" alt="" style="display:block;width:128px;height:72px;object-fit:cover;border:1px solid #3d3f52;border-radius:6px;background:#1a1b26"></figure>
+        </div>
+        <p id="editor-gauntlet-runway-bg-upload-summary" class="legend" style="margin:0.4rem 0 0;line-height:1.5;font-size:0.82rem" aria-live="polite"></p>
+      </div>
+    </section>
+
+    <section class="editor-card editor-card--help" aria-labelledby="editor-card-help-label">
+      <h2 class="editor-card__title" id="editor-card-help-label">วิธีใช้บนกริด</h2>
+      <ul class="editor-help-list legend editor-legend-short">
+        <li><strong>คลิกซ้าย</strong> = วาด · <strong>คลิกขวา</strong> = ลบ · ลากค้างได้</li>
+        <li>โหมดหลัก: กำแพง · โซนห้ามซ้อน · โซน interactive</li>
+        <li><strong>พื้นที่สุ่มจุดเกิด</strong> (ฟ้าอ่อน) — ไม่วาดช่องนี้ได้ ใช้ปุ่ม «ตั้งจุดเกิด»</li>
+        <li><strong>พื้นที่เริ่มเกม</strong> (ห้องโถง — ส้ม) — host ยืนแล้วกดเริ่ม</li>
+        <li><strong>ถามตอบ</strong>: โซนถูก/ผิด + พื้นที่คำถาม (ทอง)</li>
+        <li><strong>หยิบมาวาง</strong>: ม่วง = โซนกลาง (กำแพง) · <strong>ทอง</strong> = พื้นที่โชว์ข้อความคำถามบนแผนที่ (ถ้าไม่วาดทอง ข้อความไปที่โซนม่วง) · <strong>interactive เขียว</strong> = ยืนแล้วกด F ส่งคำตอบ · โหมดวาด <strong>ตัวเลือก 1–16</strong> = ช่องบนกริดตรงกับลำดับ <code>choices</code> · พรีวิวนับ <strong>3-2-1</strong> ไฮไลต์โซนข้อถูก (หรือใส่ <code>countdownHighlightSlot</code> 1–16 ต่อข้อใน <code>quizQuestions</code>) · <code>correctIndex</code> / <code>answerTrue</code></li>
+        <li><strong>Stack</strong>: โหมดวาดจุดปล่อย (ฟ้า) · จุดซ้อนตึก (ชมพู) · ถ้าอัปโหลดรูปทาง FTP ใช้โฟลเดอร์ <code>Game/public/img/TowerBlock</code> (ไม่มีช่องว่าง) — ชื่อ <code>Tower block</code> มี space มักได้ FTP <strong>550</strong></li>
+        <li><strong>กระโดดให้รอด</strong>: โหมด <strong>แพลตฟอร์ม</strong> (ฟ้าอมเขียว) · โหมด <strong>โซนตาย</strong> (แดง — โดนแล้วตายทันที คงที่ในโลก) · กำแพง = ขอบซ้ายขวา/บน · Space / W = กระโดด</li>
+        <li><strong>ลูกโป้งยิงบอส (Mega Virus)</strong>: จุดเกิดผู้เล่น P1–P6 + <strong>จุดเกิดบอส</strong> 1 ช่อง · ในเกมเดินช้า ยิงมีดีเลย์ · ลูกโป้งหมด = ตกรอบ · อัปโหลดรูปทาง FTP ใช้ <code>Game/public/img/MegaVirus</code> (<strong>ไม่มีช่องว่าง</strong>) — โฟลเดอร์ <code>Mega Virus</code> มี space มักได้ FTP <strong>550</strong></li>
+        <li><strong>สีช่อง</strong>: เลือกโหมดสี + Alpha แล้วคลิกบนกริด</li>
+        <li><strong>รูปบนกริด</strong>: โหมด «รูปบนกริด» — ตั้งกว้าง×สูง (ช่อง) · เลือกรูปจากแกลเลอรี · คลิกซ้ายวาง (ทับสไปรต์ที่ทับกัน) · คลิกขาวางลบทั้งแผ่น · บันทึกฉากเก็บเป็น <code>gridImageSprites</code> (ไฟล์ใหญ่ = JSON ใหญ่)</li>
+        <li>ปิด «โชว์กริดในเกม» = ซ่อนกริด/กำแพงในเกม (รูปพื้นหลังยังแสดง)</li>
+      </ul>
+    </section>
+    </div>
+    <div class="editor-workspace">
+    <div class="canvas-wrap">
+      <canvas id="editor-canvas"></canvas>
+      <div id="editor-stack-hud-mock" class="is-hidden" aria-hidden="true">
+        <aside class="editor-stack-hud-mock__score" aria-label="SCORE">
+          <div class="editor-stack-hud-mock__score-title">SCORE</div>
+          <ul class="editor-stack-hud-mock__score-list">
+            <li class="editor-stack-hud-mock__score-row">
+              <div class="editor-stack-hud-mock__score-left">
+                <span class="editor-stack-hud-mock__av-wrap"><img class="editor-stack-hud-mock__av" src="/Game/img/characters/1_down.png" alt=""></span>
+                <span class="editor-stack-hud-mock__name">ผู้เล่นทดสอบ</span>
+              </div>
+              <span class="editor-stack-hud-mock__points">0</span>
+            </li>
+          </ul>
+        </aside>
+        <div class="editor-stack-hud-mock__center">
+          <div class="editor-stack-hud-mock__time-label">TIME</div>
+          <div class="editor-stack-hud-mock__time-val">0</div>
+          <div class="editor-stack-hud-mock__time-sub">TOWER STACK · DECRYPT — TIME (sec) · เหลือเวลาถอดรหัส</div>
+        </div>
+        <div class="editor-stack-hud-mock__right">
+          <div class="editor-stack-hud-mock__integrity">
+            <div class="editor-stack-hud-mock__integrity-title">SYSTEM INTEGRITY:</div>
+            <div class="editor-stack-hud-mock__hearts" aria-hidden="true"><span class="editor-stack-hud-mock__bracket">[</span><span class="editor-stack-hud-mock__heart">♥</span><span class="editor-stack-hud-mock__heart">♥</span><span class="editor-stack-hud-mock__heart">♥</span><span class="editor-stack-hud-mock__bracket">]</span></div>
+            <div class="editor-stack-hud-mock__meta">P1 • ผู้เล่นทดสอบ • TEAM 0 • COMBO x0</div>
+          </div>
+          <div class="editor-stack-hud-mock__avatar-col">
+            <div class="editor-stack-hud-mock__avatar-frame">
+              <img class="editor-stack-hud-mock__avatar-img" src="/Game/img/characters/1_down.png" alt="">
+            </div>
+            <div class="editor-stack-hud-mock__link-chip" title="LINK">O</div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <p class="legend" id="editor-status">บันทึกแล้วจะได้รหัสฉาก ใช้รหัสนี้ตอนสร้างห้องในล็อบบี้</p>
+    </div>
+  </div>
+  <script src="js/version.js?v=0.0258"></script>
+  <script src="js/editor.js?v=0.0335"></script>
+  <div class="version-tag">v —</div>
+</body>
+</html>
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diff --git a/www/html/Game/public/img/qb-scenes/room-9.jpg b/www/html/Game/public/img/qb-scenes/room-9.jpg
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diff --git a/www/html/Game/public/play.js b/www/html/Game/public/play.js
index 692283b..f47b943 100644
--- a/www/html/Game/public/play.js
+++ b/www/html/Game/public/play.js
@@ -923,6 +923,7 @@
   let quizBattleMcqPool = [];
   let quizBattleAnsweredComps = new Set();
   let quizBattleModalCompId = null;
+  let qbAutoLastComp = null; // โดมล่าสุดที่ trigger อัตโนมัติ (กันเด้งซ้ำขณะยืนค้าง)
   const SPACE_SHOOTER_SHIP_COLORS = ['#50fa7b', '#ff79c6', '#ff5555', '#f1fa8c', '#bd93f9', '#8be9fd'];
 
   document.getElementById('room-id').textContent = spaceId;
@@ -6285,6 +6286,16 @@
       const tx = +p[0], ty = +p[1];
       if (!g[ty] || g[ty][tx] !== 1) return false;
     }
+    /* กันเดินลงเกิน 1 ช่อง: เท้า (จุดล่างของตัว ≈ py+0.5) ต้องอยู่บนเส้นทางด้วย → หยุดในครึ่งบนของช่องล่างสุด ไม่ล้ำลงช่องกำแพง */
+    const h = md.height || 15, w = md.width || 20;
+    const fy = Math.floor(py + 0.5);
+    if (fy >= 0 && fy < h) {
+      const { cw } = getCharacterFootprintWH(md);
+      const minTx = Math.floor(px), maxTx = Math.min(w - 1, minTx + cw - 1);
+      for (let tx = Math.max(0, minTx); tx <= maxTx; tx++) {
+        if (!g[fy] || g[fy][tx] !== 1) return false;
+      }
+    }
     return true;
   }
 
@@ -6425,6 +6436,9 @@
         playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
         renderPlayQuizScoreboard(playLiveQuizScores);
       }
+      /* ส่งให้ server เก็บคะแนน (authoritative) แล้ว broadcast อันดับให้ทุกคน — แบบ ZEP */
+      try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-solve', { compId }); } catch (e) { /* ignore */ }
+      updateQuizBattleProgressHud();
       flashQuizBattleFeedback('ถูกต้อง · +1', true);
     } else {
       flashQuizBattleFeedback('ยังไม่ถูก — ลองใหม่ (กด E อีกครั้ง)', false);
@@ -6433,6 +6447,25 @@
     hideQuizBattleMcqModal();
   }
 
+  /** ZEP-style: เดินถึงสถานี (โดม) ที่ยังไม่ตอบ → เปิดคำถามอัตโนมัติ (ครั้งเดียวต่อการเข้า · เดินออกแล้วกลับมาใหม่ถึงเด้งอีก) */
+  function maybeAutoOpenQuizBattle() {
+    if (!isQuizBattle() || myId == null) return;
+    const compNow = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
+    if (compNow == null) { qbAutoLastComp = null; return; }
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    const modalOpen = quizBattleModalCompId != null || (ov && !ov.classList.contains('is-hidden'));
+    if (modalOpen) return;
+    if (compNow === qbAutoLastComp) return;          // เข้าโดมนี้รอบนี้ไปแล้ว
+    qbAutoLastComp = compNow;
+    if (quizBattleAnsweredComps.has(compNow)) return; // ตอบถูกแล้ว
+    const pool = quizBattleMcqPool;
+    if (!pool.length) return;
+    const q = pool[(compNow - 1) % pool.length];
+    if (!q) return;
+    quizBattleModalCompId = compNow;
+    showQuizBattleMcqModal(q);
+  }
+
   function tryOpenQuizBattleFromKey() {
     if (!isQuizBattle() || !mapData || myId == null) return;
     const compId = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
@@ -6505,6 +6538,57 @@
     quizBattleAnsweredComps = new Set();
     quizBattleModalCompId = null;
     hideQuizBattleMcqModal();
+    hideQuizBattleProgressHud();
+  }
+
+  /* ===== Quiz Battle ฉากเดิน (ZEP) — Progress + Ranking sync จาก server ===== */
+  let quizBattleScoresBound = false;
+  function ensureQuizBattleScoresListener() {
+    if (quizBattleScoresBound || typeof socket === 'undefined' || !socket) return;
+    quizBattleScoresBound = true;
+    socket.on('quizbattle-scores', (data) => {
+      if (!data || typeof data.scores !== 'object' || !isQuizBattle()) return;
+      const sc = data.scores || {};
+      if (!playLiveQuizScores) playLiveQuizScores = {};
+      /* server เป็นเจ้าของคะแนน (จำนวนโดมที่ปลดได้) — sync ทับของทุกคน เพื่ออันดับตรงกันแบบ ZEP */
+      Object.keys(sc).forEach((id) => { playLiveQuizScores[id] = sc[id]; });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      updateQuizBattleProgressHud();
+    });
+  }
+
+  function quizBattleTotalDomes() {
+    if (!mapData || !isQuizBattle()) return 0;
+    const comp = mapData.quizBattleDomeComp;
+    if (!comp) return 0;
+    let mx = 0;
+    for (let y = 0; y < comp.length; y++) {
+      const row = comp[y] || [];
+      for (let x = 0; x < row.length; x++) if (row[x] > mx) mx = row[x];
+    }
+    return mx;
+  }
+
+  function updateQuizBattleProgressHud() {
+    if (!isQuizBattle()) return;
+    let el = document.getElementById('quiz-battle-progress-hud');
+    if (!el) {
+      el = document.createElement('div');
+      el.id = 'quiz-battle-progress-hud';
+      el.style.cssText = 'position:fixed;top:12px;left:12px;z-index:60;background:rgba(8,12,28,0.82);color:#fff;font-family:Kanit,Sarabun,system-ui,sans-serif;font-weight:700;padding:8px 18px;border-radius:999px;border:1px solid rgba(255,255,255,0.2);font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,0.35);pointer-events:none';
+      document.body.appendChild(el);
+    }
+    const total = quizBattleTotalDomes();
+    const mine = (myId != null && playLiveQuizScores && playLiveQuizScores[myId] != null)
+      ? playLiveQuizScores[myId]
+      : (quizBattleAnsweredComps ? quizBattleAnsweredComps.size : 0);
+    el.textContent = 'Progress ' + mine + '/' + total + (total > 0 && mine >= total ? ' ✓' : '');
+    el.style.color = (total > 0 && mine >= total) ? '#34d399' : '#fff';
+  }
+
+  function hideQuizBattleProgressHud() {
+    const el = document.getElementById('quiz-battle-progress-hud');
+    if (el) el.remove();
   }
 
   function setupPlayQuizBattleUi() {
@@ -6538,6 +6622,16 @@
     if (myId != null) playLiveQuizScores[myId] = 0;
     others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
     renderPlayQuizScoreboard(playLiveQuizScores);
+    /* sync คะแนน/อันดับข้ามผู้เล่นจาก server (ZEP) + โชว์ Progress N/total */
+    ensureQuizBattleScoresListener();
+    updateQuizBattleProgressHud();
+    try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-hello', (res) => {
+      if (res && res.scores && typeof res.scores === 'object') {
+        Object.keys(res.scores).forEach((id) => { playLiveQuizScores[id] = res.scores[id]; });
+        renderPlayQuizScoreboard(playLiveQuizScores);
+        updateQuizBattleProgressHud();
+      }
+    }); } catch (e) { /* ignore */ }
     loadQuizBattleMcqPool().then(() => {
       const q2 = document.getElementById('quiz-game-question');
       if (!q2) return;
@@ -11498,6 +11592,7 @@
           enforceQuizBattleLaneOnMePlay();
           const t = Date.now();
           if (t - lastSend > 80) { lastSend = t; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+          maybeAutoOpenQuizBattle();
           draw();
           requestAnimationFrame(tick);
           return;
@@ -11548,6 +11643,7 @@
     me.isWalking = !!(accX !== 0 || accY !== 0) || playPath.length > 0 || movedThisTick;
     const now = Date.now();
     if (now - lastSend > 80) { lastSend = now; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+    maybeAutoOpenQuizBattle();
     draw();
     requestAnimationFrame(tick);
   }
diff --git a/www/html/Game/public/play.js.bak-122338 b/www/html/Game/public/play.js.bak-122338
new file mode 100644
index 0000000..40b222e
--- /dev/null
+++ b/www/html/Game/public/play.js.bak-122338
@@ -0,0 +1,11760 @@
+(function () {
+  const BASE = '/Game';
+  /** แผงคำถามบนแมป quiz_carry — ไฟล์อยู่ public/img/quiz-carry */
+  const QUIZ_CARRY_MAP_FEEDBACK_IMG = {
+    correct: BASE + '/img/quiz-carry/icon-Correct.png',
+    incorrect: BASE + '/img/quiz-carry/icon-Incorrect.png',
+    scorePlus: BASE + '/img/quiz-carry/score+10.png',
+  };
+  const QUIZ_MAP_CARRY_FEEDBACK_MS = 1400;
+  const params = new URLSearchParams(window.location.search);
+  const spaceId = params.get('space');
+  const nick = params.get('nick') || 'ผู้เล่น';
+  const previewMode = params.get('preview') === '1';
+  const forceDefaultCharacter = params.get('defaultChar') === '1';
+  const editorEmbedReturn = params.get('editorEmbed') === '1';
+  const playMapIdFromQuery = (params.get('map') || '').trim();
+  /** mapId จาก join / game-start — ใช้จับฉาก crown เมื่อ URL ไม่มี ?map= */
+  let playSessionMapId = playMapIdFromQuery;
+  /** สรุปภารกิจแบบ mock (popup-result ฯลฯ) — ใช้เฉพาะฉากนี้จาก editor (id ใน URL เช่น editor.html?id=mnorwqx1) */
+  const quizCarryMissionSummaryMapId = 'mnorwqx1';
+  const quizCarryUseMissionSummaryOverlay = playMapIdFromQuery === quizCarryMissionSummaryMapId;
+  /** Gauntlet พรมแดง — ฉากนี้จาก editor (?map=mno9kb07): วาดตัวหันขวา + ใช้รูป lane/laser จาก game-timing */
+  const GAUNTLET_FACE_RIGHT_MAP_ID = 'mno9kb07';
+  /** Jump Survival ฉาก Jumper — UI สรุปภารกิจแบบ crown + รูปใน /img/Jumper/ (editor ?map=mnptfts2) */
+  const JUMP_SURVIVE_MISSION_MAP_ID = 'mnptfts2';
+  /** จนกว่าโหลด /api/characters — placeholder ชั่วคราวก่อน join */
+  const LEGACY_PLACEHOLDER_CHARACTER_ID = '';
+  let firstCharacterDefaultResolved = null;
+  const firstCharacterDefaultPromise = fetch(BASE + '/api/characters')
+    .then((r) => r.json())
+    .then((list) => {
+      if (Array.isArray(list) && list.length > 0 && list[0] && list[0].id) {
+        firstCharacterDefaultResolved = String(list[0].id);
+      } else {
+        firstCharacterDefaultResolved = '';
+      }
+    })
+    .catch(() => {
+      firstCharacterDefaultResolved = '';
+    });
+  const lobbyLevelParam = params.get('lobbyLevel');
+  const lobbyCaseParam = params.get('case');
+  if (lobbyLevelParam || lobbyCaseParam) {
+    try {
+      window.__detectiveLobbyMeta = { level: lobbyLevelParam, caseId: lobbyCaseParam };
+    } catch (e) { /* ignore */ }
+  }
+
+  const POST_CASE_LOBBY_MAP_ID = 'mn8nx46h';
+
+  function isDetectiveMinigamePlay() {
+    if (params.get('detectiveReturn') === '1') return true;
+    try {
+      return sessionStorage.getItem('detectiveMinigameReturn') === '1';
+    } catch (e) {
+      return false;
+    }
+  }
+
+  function buildRoomLobbyReturnHref() {
+    let h = 'room-lobby.html?space=' + encodeURIComponent(spaceId) + '&nick=' + encodeURIComponent(nick);
+    h += '&map=' + encodeURIComponent(POST_CASE_LOBBY_MAP_ID);
+    try {
+      const dr = localStorage.getItem('lastCreatedSpaceName');
+      if (dr) h += '&displayRoom=' + encodeURIComponent(dr);
+    } catch (e) { /* ignore */ }
+    try {
+      const meta = window.__detectiveLobbyMeta;
+      if (meta && meta.level != null && String(meta.level).trim()) {
+        h += '&lobbyLevel=' + encodeURIComponent(String(meta.level).trim());
+      }
+      if (meta && meta.caseId != null && String(meta.caseId).trim()) {
+        h += '&caseId=' + encodeURIComponent(String(meta.caseId).trim());
+      }
+    } catch (e2) { /* ignore */ }
+    try {
+      if (sessionStorage.getItem('detectiveMinigameReturn') === '1') {
+        h += '&detectiveReturn=1';
+        sessionStorage.removeItem('detectiveMinigameReturn');
+      }
+    } catch (e3) { /* ignore */ }
+    if (params.get('detectiveReturn') === '1' && h.indexOf('detectiveReturn') < 0) {
+      h += '&detectiveReturn=1';
+    }
+    return h;
+  }
+
+  function finishDetectiveMinigameAndReturnLobby() {
+    quizCarrySessionEnded = true;
+    try { sessionStorage.setItem('detectiveMinigameReturn', '1'); } catch (e) { /* ignore */ }
+    const go = function () {
+      window.location.href = buildRoomLobbyReturnHref();
+    };
+    if (socket && socket.connected) {
+      socket.emit('detective-minigame-finished', {}, function (res) {
+        if (res && res.ok) go();
+        else go();
+      });
+    } else {
+      go();
+    }
+  }
+  /** ทดสอบจากเอดิเตอร์: เติมบอทให้ครบจำนวน (รวมผู้เล่นจริง) — ?fillTotal=6 (ค่าเริ่ม 6) */
+  const previewFillBots = previewMode && editorEmbedReturn;
+  const previewTargetHeadcount = Math.min(24, Math.max(1, parseInt(params.get('fillTotal'), 10) || 6));
+  let detectiveCaseFillBots = false;
+  let detectiveBotSlotCount = 0;
+  function playBotsEnabled() {
+    return previewFillBots || detectiveCaseFillBots;
+  }
+  function playBotTargetHeadcount() {
+    if (previewFillBots) return previewTargetHeadcount;
+    if (detectiveCaseFillBots) return countPlayHumans() + detectiveBotSlotCount;
+    return countPlayHumans();
+  }
+  const PREVIEW_BOT_PREFIX = '__pv_bot_';
+  let previewBotSeq = 0;
+  /** Stack preview: บอทไม่วาบบนแผนที่ — ใช้ไฮไลต์แถบแข่งแทน */
+  let lastStackPreviewActorId = null;
+  let lastStackPreviewActorUntil = 0;
+  /** Stack preview: สลับตา Player 1 = มนุษย์, 2–6 = บอท (เฉพาะตาปัจจุบันเล่นได้) */
+  let stackTurnCount = 6;
+  let stackPreviewTurnOrder = null;
+  let stackPreviewTurnIndex = 0;
+  let stackPreviewBotThinkUntil = 0;
+
+  function rebuildStackPreviewTurnOrder() {
+    if (!playBotsEnabled() || !mapData || mapData.gameType !== 'stack') {
+      stackPreviewTurnOrder = null;
+      stackTurnCount = 1;
+      return;
+    }
+    const bots = [...others.keys()].filter(isPreviewBotId).sort();
+    stackTurnCount = Math.max(1, Math.min(12, playBotTargetHeadcount()));
+    stackPreviewTurnOrder = [{ kind: 'human', seat: 1 }];
+    for (let i = 0; i < stackTurnCount - 1; i++) {
+      stackPreviewTurnOrder.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+    }
+    stackPreviewTurnIndex = 0;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function advanceStackPreviewTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return;
+    stackPreviewTurnIndex = (stackPreviewTurnIndex + 1) % stackTurnCount;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function isStackPreviewHumanTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return true;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return !!(cur && cur.kind === 'human');
+  }
+
+  function getStackPreviewCurrentSeat() {
+    if (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return 1;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return cur && cur.seat ? cur.seat : stackPreviewTurnIndex + 1;
+  }
+  if (!spaceId) { window.location.replace(BASE + '/lobby.html'); return; }
+
+  const socket = io({ path: BASE + '/socket.io' });
+  const canvas = document.getElementById('game-canvas');
+  const ctx = canvas.getContext('2d');
+  let mapData = null, tileSize = 32, myId = null;
+  let stackMini = null;
+  let stackFall = null;
+  let lastStackTickMs = performance.now();
+  let mapBackgroundImg = null;
+  /** โหลดจาก mapData.gridImageLibrary — ดัชนีตรงกับ gridImageCells[y][x] */
+  let mapGridImageImgs = [];
+  let mapGridImageHeldImgs = [];
+  let me = { x: 1, y: 1, direction: 'down', nickname: nick, isWalking: false, playTint: null, gauntletScore: 0, gauntletEliminated: false, tx: null, ty: null, quizCarryHeld: null };
+  const others = new Map();
+  /** Stack preview HUD: เทอร์มินัลล็อก (cyber UI) */
+  const STACK_PREVIEW_HUD_LOG_MAX = 8;
+  let stackPreviewHudLog = [];
+  function stackPreviewPushHudLog(line) {
+    if (!previewFillBots) return;
+    stackPreviewHudLog.push(String(line || '').slice(0, 96));
+    while (stackPreviewHudLog.length > STACK_PREVIEW_HUD_LOG_MAX) stackPreviewHudLog.shift();
+  }
+  function stackPreviewLogStackDrop(hit, actor) {
+    if (!previewFillBots || !hit) return;
+    const bid = actor && actor.botId;
+    let nm = 'NODE';
+    if (actor && actor.human) nm = (me.nickname || 'YOU').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    else if (bid && others.get(bid)) nm = String(others.get(bid).nickname || 'BOT').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    if (hit.miss) stackPreviewPushHudLog(`>>> ${nm}: SECTOR_MISS`);
+    else if (hit.perfect) stackPreviewPushHudLog(`>>> ${nm}: PERFECT +${hit.pts} SYN`);
+    else stackPreviewPushHudLog(`>>> ${nm}: LOCK +${hit.pts}`);
+  }
+  const keys = {};
+  const characterImages = {};
+  function createDefaultAvatarImg() {
+    const c = document.createElement('canvas');
+    c.width = 64; c.height = 64;
+    const ctx = c.getContext('2d');
+    ctx.fillStyle = '#7aa2f7';
+    ctx.beginPath();
+    ctx.arc(32, 22, 14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#9ece6a';
+    ctx.beginPath();
+    ctx.arc(32, 48, 18, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#1a1b26';
+    ctx.beginPath();
+    ctx.arc(28, 20, 3, 0, Math.PI * 2);
+    ctx.arc(36, 20, 3, 0, Math.PI * 2);
+    ctx.fill();
+    const img = new Image();
+    img.src = c.toDataURL('image/png');
+    return img;
+  }
+  const defaultAvatarImg = createDefaultAvatarImg();
+  const characterAnimations = {};
+  const characterIdleAnimations = {};
+  const CHARACTER_ANIM_FRAMES = 4;
+  const CHARACTER_ANIM_FRAME_MS = 200;
+
+  /** จังหวะเดินลูปคงที่ 4 เฟรม — อย่า modulo ด้วยจำนวนเฟรมที่โหลดได้แล้ว (ไม่งั้นเฟรมกลางหาย/ลูปสั้นลง) */
+  function walkAnimPhaseIndex(now, isWalking) {
+    const t = isWalking ? (typeof now === 'number' ? now : Date.now()) : 0;
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  /** เลือกเฟรมสูงสุดที่โหลดแล้วและ <= phase (เดิมถอย) */
+  function pickLoadedWalkFrameIndex(anim, phase) {
+    if (!anim || !anim.frames || !anim.frames.length) return -1;
+    const maxK = Math.min(phase, anim.frames.length - 1, CHARACTER_ANIM_FRAMES - 1);
+    for (let k = maxK; k >= 0; k--) {
+      const f = anim.frames[k];
+      if (f && f.complete && f.naturalWidth) return k;
+    }
+    return -1;
+  }
+
+  /** ตัวละครอัปโหลดจากระบบมักเป็น char- + ตัวเลข (อาจมี suffix) — ไม่มี idle strip / idle layer ครบทุกทิศ */
+  function isUploadedCharAssetId(id) {
+    if (!id) return false;
+    const s = String(id).trim();
+    return /^char-\d/i.test(s);
+  }
+
+  function useMultiFrameIdleSpriteSheets(id) {
+    if (!id) return true;
+    return !isUploadedCharAssetId(id);
+  }
+
+  function ensureCharacterIdleAnim(id, dir) {
+    const d = dir || 'down';
+    /* char-* ไม่มี *_idle_0.png — ใช้ strip เดิน dir_0..3 เป็น idle ต่อทิศ (มีลูป) แทนรูปเดียวที่มักไม่มี */
+    if (!useMultiFrameIdleSpriteSheets(id)) {
+      const key = String(id) + '_' + d + '_idle';
+      let anim = characterIdleAnimations[key];
+      if (!anim) {
+        anim = { frames: [], fallback: null };
+        characterIdleAnimations[key] = anim;
+        const enc = encodeURIComponent(id);
+        for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+          const img = new Image();
+          img.src = BASE + '/img/characters/' + enc + '_' + d + '_' + i + '.png';
+          anim.frames.push(img);
+        }
+        const fb = new Image();
+        fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+        anim.fallback = fb;
+      }
+      return anim;
+    }
+    const key = id + '_' + d + '_idle';
+    let anim = characterIdleAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterIdleAnimations[key] = anim;
+      const enc = encodeURIComponent(id);
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + enc + '_' + d + '_idle_' + i + '.png';
+        anim.frames.push(img);
+      }
+      const fb = new Image();
+      fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+      anim.fallback = fb;
+    }
+    return anim;
+  }
+
+  /** ลูป idle ขณะยืน — ใช้จังหวะเวลาเหมือนเดิน (CHARACTER_ANIM_FRAME_MS) */
+  function idleAnimPhaseIndex(now) {
+    const t = typeof now === 'number' ? now : Date.now();
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  function characterIdleSpritesVisible(id, dir) {
+    if (!id) return false;
+    const anim = ensureCharacterIdleAnim(id, dir || 'down');
+    if (anim.fallback && anim.fallback.complete && anim.fallback.naturalWidth) return true;
+    for (let i = 0; i < anim.frames.length; i++) {
+      const f = anim.frames[i];
+      if (f && f.complete && f.naturalWidth) return true;
+    }
+    return false;
+  }
+
+  /** สุ่มสีตามเลเยอร์เดียวกับ character.html: bodyColor / hairColor / headColor (ลำดับซ้อนเหมือน composeLayeredFrame) */
+  const PLAY_LAYER_ORDER = ['shadow', 'bodyColor', 'bodyStroke', 'headColor', 'headStroke', 'hairColor', 'hairStroke', 'face'];
+  const PLAY_LAYER_TINT_KEY = { bodyColor: 'body', headColor: 'head', hairColor: 'hair' };
+  const PLAY_TINT_HEAD = ['#eaa78a', '#fbd5c4', '#fae9e1'];
+  const PLAY_TINT_HAIR = ['#d72520', '#ef8508', '#efe237', '#5bb443', '#2585cb', '#3f4ead', '#b53fd6', '#ef62b9'];
+  const PLAY_TINT_BODY = ['#fb4941', '#feaa11', '#fefe6d', '#adfd85', '#45fbfd', '#799afe', '#f87dff', '#fec1fe'];
+  const playLayerMode = {};
+  /** คิว probe ครบ up/down/left/right แล้ว — กันทิศที่ไม่มีไฟล์ layer ไปตก fallback แถบทั้งทั้งที่ทิศอื่นมี */
+  const playLayerAllDirsQueued = {};
+  /** จาก GET /api/characters — hasLayerFiles สแกนจากชื่อไฟล์จริง (แม่นกว่า probe จาก <img> อย่างเดียว) */
+  let playCharLayerApi = { status: 'idle', map: null };
+  /** id → Set เลเยอร์ที่มีไฟล์จริง (จาก GET /api/characters) — กันยิง URL เลเยอร์ที่ไม่เคยอัปโหลด → 404 รกคอนโซล */
+  const playCharDiskLayersById = Object.create(null);
+
+  function ensurePlayCharLayerListFetch() {
+    if (playCharLayerApi.status !== 'idle') return;
+    playCharLayerApi.status = 'loading';
+    fetch(BASE + '/api/characters')
+      .then((r) => r.json())
+      .then((list) => {
+        const map = Object.create(null);
+        if (Array.isArray(list)) {
+          list.forEach((c) => {
+            if (!c || !c.id) return;
+            map[c.id] = !!c.hasLayerFiles;
+            if (Array.isArray(c.layers) && c.layers.length) {
+              const st = new Set();
+              c.layers.forEach((n) => {
+                if (typeof n === 'string' && n.length) st.add(n);
+              });
+              if (st.size) playCharDiskLayersById[c.id] = st;
+              else delete playCharDiskLayersById[c.id];
+            } else {
+              delete playCharDiskLayersById[c.id];
+            }
+          });
+        }
+        playCharLayerApi = { status: 'done', map };
+      })
+      .catch(() => {
+        playCharLayerApi = { status: 'done', map: Object.create(null) };
+      });
+  }
+
+  /** @returns {boolean|null} true/false จาก API, null = ยังไม่โหลดหรือไม่มีรายการ id นี้ */
+  function playCharLayerFromApi(characterId) {
+    if (playCharLayerApi.status !== 'done' || !characterId) return null;
+    if (Object.prototype.hasOwnProperty.call(playCharLayerApi.map, characterId)) {
+      return playCharLayerApi.map[characterId];
+    }
+    return null;
+  }
+
+  /** ถ้าเซิร์ฟเวอร์ส่งรายชื่อเลเยอร์ที่มีบนดิสก์ — ไม่โหลดเลเยอร์อื่น (ลด 404) */
+  function playCharDiskLayersSet(characterId) {
+    if (!characterId || playCharLayerApi.status !== 'done') return null;
+    const s = playCharDiskLayersById[characterId];
+    return s && s.size ? s : null;
+  }
+
+  const playLayerImageCache = new Map();
+  const playLayerCompositeCache = new Map();
+  function pickRandomPlayTint() {
+    return {
+      head: PLAY_TINT_HEAD[Math.floor(Math.random() * PLAY_TINT_HEAD.length)],
+      hair: PLAY_TINT_HAIR[Math.floor(Math.random() * PLAY_TINT_HAIR.length)],
+      body: PLAY_TINT_BODY[Math.floor(Math.random() * PLAY_TINT_BODY.length)],
+    };
+  }
+
+  /** FNV-1a 32-bit — แยกดัชนี head/hair/body ได้กระจายกว่า hash*31 เดิม (กันบอท __pv_bot_N สีซ้ำ) */
+  function hashStringFnv1a32(str) {
+    let h = 2166136261 >>> 0;
+    const s = String(str || '');
+    for (let i = 0; i < s.length; i++) {
+      h ^= s.charCodeAt(i);
+      h = Math.imul(h, 16777619) >>> 0;
+    }
+    return h >>> 0;
+  }
+
+  function playTintFromPeerId(id) {
+    const s = String(id || 'x');
+    const h0 = hashStringFnv1a32(s);
+    const h1 = hashStringFnv1a32(s + '\n1hair');
+    const h2 = hashStringFnv1a32(s + '\n2body');
+    return {
+      head: PLAY_TINT_HEAD[h0 % PLAY_TINT_HEAD.length],
+      hair: PLAY_TINT_HAIR[h1 % PLAY_TINT_HAIR.length],
+      body: PLAY_TINT_BODY[h2 % PLAY_TINT_BODY.length],
+    };
+  }
+
+  function hexToRgb01(hex) {
+    const h = (hex || '').replace('#', '').trim();
+    if (h.length !== 6) return [1, 1, 1];
+    return [
+      parseInt(h.slice(0, 2), 16) / 255,
+      parseInt(h.slice(2, 4), 16) / 255,
+      parseInt(h.slice(4, 6), 16) / 255,
+    ];
+  }
+
+  function tintPlayLayerImageData(imageData, tintHex) {
+    const rgb = hexToRgb01(tintHex);
+    const tr = rgb[0], tg = rgb[1], tb = rgb[2];
+    const d = imageData.data;
+    for (let i = 0; i < d.length; i += 4) {
+      if (d[i + 3] < 12) continue;
+      const r = d[i], g = d[i + 1], b = d[i + 2];
+      const L = (0.299 * r + 0.587 * g + 0.114 * b) / 255;
+      d[i] = Math.min(255, Math.round(tr * 255 * L));
+      d[i + 1] = Math.min(255, Math.round(tg * 255 * L));
+      d[i + 2] = Math.min(255, Math.round(tb * 255 * L));
+    }
+  }
+
+  function drawPlayTintedLayer(ctx, w, h, img, tintHex) {
+    if (!tintHex) {
+      ctx.drawImage(img, 0, 0, w, h);
+      return;
+    }
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const x = c.getContext('2d');
+    x.drawImage(img, 0, 0, w, h);
+    try {
+      const idata = x.getImageData(0, 0, w, h);
+      tintPlayLayerImageData(idata, tintHex);
+      x.putImageData(idata, 0, 0);
+    } catch (e) {
+      x.clearRect(0, 0, w, h);
+      x.drawImage(img, 0, 0, w, h);
+    }
+    ctx.drawImage(c, 0, 0, w, h);
+  }
+
+  function ensurePlayLayerImage(url) {
+    let img = playLayerImageCache.get(url);
+    if (!img) {
+      img = new Image();
+      img.src = url;
+      playLayerImageCache.set(url, img);
+    }
+    return img;
+  }
+
+  /** ลำดับลอง URL: เฟรมปัจจุบันแบบ multi → เฟรม 0 → แบบ single (ไม่มี _0_) เพื่อกันชื่อไฟล์ไม่ตรงกับที่เซิร์ฟเวอร์เขียน */
+  function layerUrlCandidates(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir;
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  /** เลเยอร์ idle: id_<dir>_idle_<n>_layer_<name>.png หรือ id_<dir>_idle_layer_<name>.png */
+  function layerUrlCandidatesIdle(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir + '_idle';
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  function shadowUrlCandidates(id, dir, frameIndex) {
+    const c = layerUrlCandidates(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  function shadowUrlCandidatesIdle(id, dir, frameIndex) {
+    const c = layerUrlCandidatesIdle(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  /** ลองทีละ URL — อย่า set src พร้อมกันหลายรูป (เดิมทำให้ legacy `id_dir_layer_x` โดน 404 ทุกเลเยอร์ทุกทิศทั้งที่มีแค่ `id_dir_0_layer_x`) */
+  function resolvePlayLayerImage(urls) {
+    for (let i = 0; i < urls.length; i++) {
+      const img = ensurePlayLayerImage(urls[i]);
+      if (!img.complete) return { status: 'pending' };
+      if (img.naturalWidth > 0) return { status: 'ok', img };
+    }
+    return { status: 'missing' };
+  }
+
+  function ensurePlayLayerProbesAllDirections(characterId) {
+    if (!characterId || playLayerAllDirsQueued[characterId]) return;
+    playLayerAllDirsQueued[characterId] = true;
+    ['up', 'down', 'left', 'right'].forEach((d) => ensurePlayLayerProbe(characterId, d));
+  }
+
+  function playCharAnyDirectionLayered(characterId) {
+    if (!characterId) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => playLayerMode[characterId + '|' + d] === 'layered');
+  }
+
+  /** รอเฉพาะตอนยังไม่เจอ layered เลย — ถ้ามีทิศหนึ่ง layered แล้ว ไม่ต้องรอทิศอื่น */
+  function playCharLayerDiscoveryPending(characterId) {
+    if (!characterId) return true;
+    const api = playCharLayerFromApi(characterId);
+    if (api === true || api === false) return false;
+    if (playCharAnyDirectionLayered(characterId)) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => {
+      const m = playLayerMode[characterId + '|' + d];
+      return m === undefined || m === 'pending';
+    });
+  }
+
+  function ensurePlayLayerProbe(characterId, dir) {
+    const key = characterId + '|' + dir;
+    if (playLayerMode[key] !== undefined && playLayerMode[key] !== 'pending') return;
+    if (playLayerMode[key] === 'pending') return;
+    playLayerMode[key] = 'pending';
+    const cands = layerUrlCandidates(characterId, dir, 'bodyColor', 0);
+    let ci = 0;
+    function tryNextProbe() {
+      if (playLayerMode[key] !== 'pending') return;
+      if (ci >= cands.length) {
+        playLayerMode[key] = 'none';
+        return;
+      }
+      const url = cands[ci++];
+      const img = ensurePlayLayerImage(url);
+      const fin = () => {
+        if (playLayerMode[key] !== 'pending') return;
+        if (img.naturalWidth > 0) {
+          playLayerMode[key] = 'layered';
+          return;
+        }
+        tryNextProbe();
+      };
+      img.onload = fin;
+      img.onerror = fin;
+      if (img.complete) fin();
+    }
+    tryNextProbe();
+  }
+
+  function getCharacterAnimFrameIndex(id, dir, now, isWalking) {
+    if (!id) return 0;
+    const key = id + '_' + dir;
+    const anim = characterAnimations[key];
+    if (!anim) return 0;
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    return fi >= 0 ? fi : 0;
+  }
+
+  function tryComposePlayLayersFromFiles(rawImg, id, dir, frameIndex, tint, opts) {
+    const useIdle = opts && opts.idle;
+    if (!rawImg || !rawImg.naturalWidth || !rawImg.naturalHeight) return null;
+    const w = rawImg.naturalWidth, h = rawImg.naturalHeight;
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const cctx = c.getContext('2d');
+    let anyTintColorLayer = false;
+    let skippedShadowWhilePending = false;
+    const diskLayers = playCharDiskLayersSet(id);
+    /* ยืน (opts.idle): ลอง compose จาก *_idle_*_layer_* เหมือนหน้า character upload — รวม char-* ที่อัปโหลด idle เลเยอร์; ถ้าไม่มีไฟล์จะ missing → ไม่มีเลเยอร์ย้อม → getPlayTintedAvatarSource fallback ไป walk compose */
+    const idleLayerStripes = !!useIdle;
+    const resDir = dir;
+    const resFi = frameIndex;
+    for (let li = 0; li < PLAY_LAYER_ORDER.length; li++) {
+      const layerName = PLAY_LAYER_ORDER[li];
+      if (diskLayers && layerName !== 'shadow' && !diskLayers.has(layerName)) continue;
+      /* char-* หันหลัง (up): ไม่มี face ทิศนี้ — ข้ามกันตาหน้าซ้อนหลังหัว; ซ้าย/ขวา/หน้าใช้ face ตามทิศได้ */
+      if (layerName === 'face' && isUploadedCharAssetId(id) && dir === 'up') {
+        continue;
+      }
+      let urls;
+      if (layerName === 'shadow') {
+        urls = idleLayerStripes
+          ? shadowUrlCandidatesIdle(id, dir, frameIndex)
+          : shadowUrlCandidates(id, resDir, resFi);
+      } else {
+        urls = idleLayerStripes
+          ? layerUrlCandidatesIdle(id, dir, layerName, frameIndex)
+          : layerUrlCandidates(id, resDir, layerName, resFi);
+      }
+      const r = resolvePlayLayerImage(urls);
+      /* เงาโหลดช้า/404 บ่อย — อย่าให้บล็อกทั้งคอมโพส (ไม่งั้นตกไป fallback แถบแนวตั้งแทนเลเยอร์จริง) */
+      if (r.status === 'pending' && layerName === 'shadow') {
+        skippedShadowWhilePending = true;
+        continue;
+      }
+      if (r.status === 'pending') return null;
+      if (r.status === 'missing') continue;
+      const tintHex = PLAY_LAYER_TINT_KEY[layerName] ? tint[PLAY_LAYER_TINT_KEY[layerName]] : null;
+      if (PLAY_LAYER_TINT_KEY[layerName]) anyTintColorLayer = true;
+      drawPlayTintedLayer(cctx, w, h, r.img, tintHex);
+    }
+    /* ถ้าโหลดได้แต่ไม่มีเลเยอร์สีเลย จะเหลือแต่ stroke → ตัวขาว — ใช้ PNG รวมแทน */
+    if (!anyTintColorLayer) return null;
+    return { canvas: c, skipCache: skippedShadowWhilePending };
+  }
+
+  function getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, tint) {
+    if (!tint || !characterId || !rawImg) return rawImg;
+    ensurePlayCharLayerListFetch();
+    ensurePlayLayerProbesAllDirections(characterId);
+    const dirn = dir || 'down';
+    const frameIndexWalk = getCharacterAnimFrameIndex(characterId, dirn, timeMs, isWalking);
+    const idlePhase = idleAnimPhaseIndex(typeof timeMs === 'number' ? timeMs : Date.now());
+
+    if (playCharLayerDiscoveryPending(characterId)) return rawImg;
+
+    const apiFlag = playCharLayerFromApi(characterId);
+    /* เหมือนเดิม: มีเลเยอร์แยกไฟล์เมื่อ API บอก hasLayerFiles หรือ probe เจอ — gen สีทำบน canvas จาก *_layer_* เท่านั้น */
+    const charHasLayerFiles = apiFlag === true
+      || (apiFlag == null && playCharAnyDirectionLayered(characterId));
+
+    /* มี PNG idle รวม — ใช้เมื่อไม่มีระบบเลเยอร์สี (ถ้ามีเลเยอร์ต้อง compose ไม่ return raw ขาว) */
+    if (!charHasLayerFiles && !isWalking && characterIdleSpritesVisible(characterId, dirn)) {
+      return rawImg;
+    }
+    const cacheKeyWalk = [characterId, dirn, frameIndexWalk, tint.head, tint.hair, tint.body, 'ct3'].join('|');
+
+    if (charHasLayerFiles) {
+      if (!isWalking) {
+        const composeFrame = isUploadedCharAssetId(characterId) ? 0 : idlePhase;
+        const cacheKeyIdle = [characterId, dirn, composeFrame, tint.head, tint.hair, tint.body, 'ct3', 'idleL'].join('|');
+        const hitI = playLayerCompositeCache.get(cacheKeyIdle);
+        if (hitI) return hitI;
+        const packI = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, composeFrame, tint, { idle: true });
+        if (packI && packI.canvas) {
+          if (!packI.skipCache) playLayerCompositeCache.set(cacheKeyIdle, packI.canvas);
+          return packI.canvas;
+        }
+      }
+      const hit = playLayerCompositeCache.get(cacheKeyWalk);
+      if (hit) return hit;
+      const pack = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, frameIndexWalk, tint, { idle: false });
+      if (pack && pack.canvas) {
+        if (!pack.skipCache) playLayerCompositeCache.set(cacheKeyWalk, pack.canvas);
+        return pack.canvas;
+      }
+      return rawImg;
+    }
+
+    /*
+     * ไม่มีไฟล์เลเยอร์ตาม API/probe — แสดง PNG รวม (ไม่ย้อมทั้งตัว: ไม่เหมือนระบบ gen สีแบบเลเยอร์เดิม)
+     */
+    return rawImg;
+  }
+
+  function getCharacterImg(id, direction) {
+    if (!id) return null;
+    const key = id + '_' + (direction || 'down');
+    if (characterImages[key]) return characterImages[key];
+    const img = new Image();
+    img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + (direction || 'down') + '.png';
+    characterImages[key] = img;
+    return img;
+  }
+
+  function getCharacterFrame(id, direction, now, isWalking) {
+    if (!id) return null;
+    const dir = direction || 'down';
+    const t = typeof now === 'number' ? now : Date.now();
+    if (!isWalking) {
+      const idleAnim = ensureCharacterIdleAnim(id, dir);
+      let idlePhase = idleAnimPhaseIndex(t);
+      if (isUploadedCharAssetId(id)) idlePhase = 0;
+      const idleFi = pickLoadedWalkFrameIndex(idleAnim, idlePhase);
+      if (idleFi >= 0) return idleAnim.frames[idleFi];
+      const idfb = idleAnim.fallback;
+      if (idfb && idfb.complete && idfb.naturalWidth) return idfb;
+    }
+    const key = id + '_' + dir;
+    let anim = characterAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterAnimations[key] = anim;
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + dir + '_' + i + '.png';
+        anim.frames.push(img);
+      }
+      anim.fallback = getCharacterImg(id, dir);
+    }
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    if (fi >= 0) return anim.frames[fi];
+    const fb = anim.fallback;
+    if (fb && fb.complete && fb.naturalWidth) return fb;
+    return null;
+  }
+
+  function getAvatarImg(characterId, direction, now, isWalking) {
+    const img = characterId ? getCharacterFrame(characterId, direction, now, isWalking) : null;
+    if (img) return img;
+    return defaultAvatarImg;
+  }
+  function getStoredCharacterId() {
+    try {
+      let v = localStorage.getItem('gameCharacterId');
+      if (v === 'Chatest') v = ''; // legacy placeholder — ไม่มี sprite จริง
+      if (v) return v;
+    } catch (e) { /* ignore */ }
+    if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+    return firstCharacterDefaultResolved || '';
+  }
+  function getPlayCharacterId() {
+    if (forceDefaultCharacter) {
+      if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+      return firstCharacterDefaultResolved || '';
+    }
+    return getStoredCharacterId();
+  }
+  const MOVE_SPEED = 0.15;
+  const PATH_ARRIVE_THRESH = 0.15;
+
+  function isMovementKey(code) {
+    return ['KeyW','KeyA','KeyS','KeyD','ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].indexOf(code) !== -1;
+  }
+  function isChatFocused() {
+    return false;
+  }
+  let zoom = 1.4;
+  let froggerScore = 0;
+  let lastFroggerKey = 0;
+  let gauntletObstacles = [];
+  /** อินเทอร์โพเลตการวาด obstacle ระหว่างแพ็กเก็ต sync (~220ms) */
+  let gauntletObsRenderPrev = [];
+  let gauntletObsRenderNext = [];
+  let gauntletObsBlendT0 = 0;
+  let meGauntletJumpTicks = 0;
+  /** ค่าที่ใช้วาดการยกตัว (เลอร์ปจาก meGauntletJumpTicks ให้โค้งกระโดดไม่กระตุก) */
+  let meGauntletJumpVis = 0;
+  /** ซิงก์จากเซิร์ฟเวอร์ (gauntlet-sync / GET /api/game-timing) */
+  let gauntletRuntimeTickMs = 220;
+  let gauntletRuntimeJumpTicks = 16;
+  /** Stack: รอบสวิงต่อวินาที — จาก GET /api/game-timing · ค่าน้อย = สวิงช้า */
+  let playStackSwingHz = 0.55;
+  /** Stack: ความกว้างบล็อก (tile) — null = คำนวณจากโซนลงบนแผนที่ */
+  let playStackBlockWidthTiles = null;
+  /** กระโดดให้รอด: ความสูงกระโดด = ทวีคูณ × ความสูงตัว (ch×tile) — จาก GET /api/game-timing */
+  let playJumpSurviveJumpHeightMult = 1.5;
+  /** จำกัดเวลารอบภารกิจกระโดดขึ้นแท่น (วินาที) — จาก GET /api/game-timing; 0 = ใช้ค่าเริ่ม 60 ในเกม */
+  let playJumpSurviveMissionTimeSec = 0;
+  /** ยิงยานอวกาศ (space_shooter): เวลารอบจาก game-timing; 0 = ใช้ค่าเริ่ม 90 ในเกมถ้าแมปไม่ทับ */
+  let playSpaceShooterMissionTimeSec = 0;
+  /** 0 = ไม่จำกัด — จาก game-timing / gauntlet-sync (พรมแดง Gauntlet เท่านั้น) */
+  let gauntletRuntimeTimeLimitSec = 0;
+  /** เวลาสิ้นสุดรอบ (epoch ms) จากเซิร์ฟเวอร์ — null = ไม่จับเวลา */
+  let gauntletEndsAtMs = null;
+  /** Crown (mno9kb07): เซิร์ฟยังไม่ปล่อยรัน — หยุด tick / เวลา */
+  let gauntletCrownRunHeldRemote = false;
+  /** null | 'howto' | 'countdown' | 'live' — พรีรันก่อน GO */
+  let gauntletCrownPregamePhase = null;
+  let gauntletCrownLobbyReadyMap = {};
+  let gauntletCrownCountdownTimer = null;
+  let lastGauntletJumpKey = 0;
+  /** รูป lane: หลาย URL สุ่มตาม id คงที่ · laser: แยกบน/ล่าง/เส้น + สี/ความหนา */
+  let gauntletLaneImageUrls = [];
+  let gauntletLaserTopUrl = '';
+  let gauntletLaserBottomUrl = '';
+  let gauntletLaserLineUrl = '';
+  let gauntletLaserFillColor = 'rgba(140,230,255,0.42)';
+  let gauntletLaserStrokeColor = 'rgba(255,220,255,0.9)';
+  let gauntletLaserLineWidthPx = 2;
+  const gauntletAssetImageCache = new Map();
+
+  /** แปลง URL จาก Admin/game-timing ให้โหลดได้ (nginx เสิร์ฟจาก /Game/...) */
+  function normalizeGauntletAssetUrlForPlay(u) {
+    if (typeof u !== 'string') return '';
+    const t = u.trim();
+    if (!t) return '';
+    if (/^https?:\/\//i.test(t)) return t;
+    const qIdx = t.indexOf('?');
+    const base = (qIdx >= 0 ? t.slice(0, qIdx) : t).trim();
+    const qs = qIdx >= 0 ? t.slice(qIdx) : '';
+    if (!base) return '';
+    if (base.startsWith('/')) return base + qs;
+    if (/^Game\//i.test(base)) return '/' + base.replace(/^\/+/, '') + qs;
+    return base + qs;
+  }
+
+  function ensureGauntletAssetImage(url) {
+    const u = normalizeGauntletAssetUrlForPlay(typeof url === 'string' ? url : '');
+    if (!u) return null;
+    let rec = gauntletAssetImageCache.get(u);
+    if (rec) return rec;
+    rec = { img: new Image(), ready: false };
+    if (/^https?:\/\//i.test(u)) {
+      try { rec.img.crossOrigin = 'anonymous'; } catch (e) { /* ignore */ }
+    }
+    rec.img.onload = function () { rec.ready = true; };
+    rec.img.onerror = function () { rec.ready = false; };
+    rec.img.src = u;
+    gauntletAssetImageCache.set(u, rec);
+    return rec;
+  }
+
+  function pickGauntletLaneImageRec(obsId) {
+    if (!gauntletLaneImageUrls.length) return null;
+    const n = gauntletLaneImageUrls.length;
+    const idx = Math.abs(Number(obsId) | 0) % n;
+    const u = gauntletLaneImageUrls[idx];
+    return u ? ensureGauntletAssetImage(u) : null;
+  }
+
+  function clampClientLaserColor(s, def) {
+    const t = String(s || '').trim().slice(0, 100);
+    if (!t || /[<>"'`]/.test(t)) return def;
+    return t;
+  }
+
+  let playQuizPhaseLocal = null;
+  let playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+  let playQuizText = '';
+  let playQuizPhaseEndsAt = 0;
+  let playQuizTimerInterval = null;
+  /** Preview-only: real question pool + phased timer (matches server quiz-settings / map quizQuestions). */
+  let previewQuizPool = [];
+  let previewQuizTiming = { readMs: 10000, answerMs: 5000, betweenMs: 3500 };
+  let previewQuizStep = 'read';
+  let previewQuizCurrent = null;
+  let playLiveQuizScores = {};
+  /** คะแนนต่อคำตอบที่ถูกเมื่อส่งป้ายที่ฮับ/โซนส่ง — quiz_carry เท่านั้น */
+  const QUIZ_CARRY_POINTS_PER_CORRECT = 10;
+  /** quiz_carry: หยิบตัวเลือกมาวางโซนกลาง — เล่นพร้อมกัน (ไม่สลับตา) */
+  let quizCarryPool = [];
+  let quizCarryCurrent = null;
+  /** editor embed + preview: นับ 3–2–1 ก่อนโชว์คำถามและให้เดิน/หยิบได้ */
+  let quizCarryEmbedPendingQuestion = null;
+  let quizCarryEmbedCountdownStartAt = 0;
+  let quizCarryEmbedCountdownEndAt = 0;
+  /** quiz_carry: epoch ให้หยิบตัวเลือกได้ · epoch ปิดรอบตอบ (ตั้งที่ Admin แท็บหยิบมาวาง) */
+  let quizCarryOptionRevealAt = 0;
+  let quizCarryAnswerCloseAt = 0;
+  let quizCarryCarryTimingMs = { carryReadMs: 3000, carryAnswerMs: 5000 };
+  /** พรีวิว (รวม editor embed): จำนวนข้อที่เล่นก่อนโอเวอร์เลย์จบ — 0 = ไม่จบอัตโนมัติ */
+  let quizCarrySessionLength = 0;
+  let quizCarryRoundsCompleted = 0;
+  let quizCarrySessionEnded = false;
+  /** หลัง timeup บนโต๊ะ (embed): รอ 5s แล้วโชว์ result-complete / result-gameover */
+  let quizCarryResultEndTimer = null;
+  /** หลังโชว์ result-end (embed preview): รอ 5s แล้วกลับ room-lobby — ใช้ร่วม quiz_carry + crown */
+  let embedPreviewLobbyReturnTimer = null;
+  /** embed พรีวิว: รอ Ready / START ของโฮสต์ก่อนนับ 3–2–1 */
+  let quizCarryPregameActive = false;
+  let playHostId = null;
+  /** ซิงก์จากเซิร์ฟเวอร์: socketId → กด Ready แล้ว */
+  let quizCarryLobbyReadyMap = {};
+  /** จาก /api/quiz-settings carryMapPanelTheme — ใช้กับ #quiz-map-question-panel เฉพาะ quiz_carry */
+  let quizCarryMapPanelTheme = null;
+  /** จาก /api/quiz-settings carryEmbedCountdownTheme — สี/ขนาด overlay นับ 3-2-1 (embed) */
+  let quizCarryEmbedCountdownTheme = null;
+  /** จาก /api/quiz-settings carryChoicePlaqueThemes — ป้าย canvas ต่อช่องตัวเลือก 0..15 (null = ใช้ค่าเริ่มต้นทุกช่อง) */
+  let quizCarryChoicePlaqueThemes = null;
+  /** จาก carryChoicePlaqueMapScale — ขยายป้ายบนแมป + ฟอนต์ (0.85–2.5) */
+  let quizCarryPlaqueMapScale = 1.25;
+  const quizCarryChoiceImageCache = new Map();
+  /** สแนปจาก join-space (Node) — ใช้เมื่อ fetch HTTP quiz-settings ไม่ได้หรือไม่มีธีม */
+  let quizCarryJoinSettingsSnap = null;
+
+  /** quiz_carry — โซนตัวเลือกบนแมป / ธีมป้ายต่อช่องสูงสุด 16 */
+  const QUIZ_CARRY_MAX_OPTION_SLOTS = 16;
+
+  /** jump_survive — กล้องตามตัวในกรอบ + แพลตฟอร์มเลื่อนขึ้น (scroll) ไม่ลากทั้งฉาก */
+  let jumpSurviveCamCenterX = 0;
+  let jumpSurviveCamCenterY = 0;
+  let jumpSurviveEliminated = false;
+  /** จับเวลาโหมดกระโดดให้รอด (วินาทีบน HUD) */
+  let jumpSurviveSessionStartMs = 0;
+  let jumpSurvivePlatformScrollPx = 0;
+  let jumpSurviveVy = 0;
+  let jumpSurviveLastTickMs = 0;
+  let jumpSurviveJumpQueued = false;
+  let jumpSurviveOnGround = false;
+  let jumpSurviveLastEmitT = 0;
+  /** mnptfts2: howto → countdown → live → ended (คะแนน 100 ผู้รอดสุดท้าย) */
+  let jumpSurviveMissionPhase = null;
+  let jumpSurviveGameEnded = false;
+  let jumperMissionCountdownTimer = null;
+
+  /** space_shooter — ยิงหิน (จุดเกิดจากกริด P1–P6) */
+  let spaceShooterBullets = [];
+  let spaceShooterAsteroids = [];
+  let spaceShooterPopups = [];
+  let spaceShooterLastTickMs = 0;
+  let spaceShooterSpawnAccMs = 0;
+  let spaceShooterFireCd = 0;
+  let spaceShooterSessionStartMs = 0;
+  let spaceShooterLastMoveEmit = 0;
+  let spaceShooterGameEnded = false;
+
+  /** balloon_boss — ลูกโป้งยิงบอส (Mega Virus) */
+  let balloonBossPendingShots = [];
+  let balloonBossPlayerBullets = [];
+  let balloonBossBossBullets = [];
+  let balloonBossSessionStartMs = 0;
+  let balloonBossLastTickMs = 0;
+  let balloonBossLastMoveEmit = 0;
+  let balloonBossPlayerFireCd = 0;
+  let balloonBossGameEnded = false;
+  let balloonBossHitFx = [];
+  let balloonBossBossFireAcc = 0;
+  /** quiz_battle — โดม MCQ กด E (ข้อจาก battleQuizMcq) */
+  let quizBattleMcqPool = [];
+  let quizBattleAnsweredComps = new Set();
+  let quizBattleModalCompId = null;
+  let qbAutoLastComp = null; // โดมล่าสุดที่ trigger อัตโนมัติ (กันเด้งซ้ำขณะยืนค้าง)
+  const SPACE_SHOOTER_SHIP_COLORS = ['#50fa7b', '#ff79c6', '#ff5555', '#f1fa8c', '#bd93f9', '#8be9fd'];
+
+  document.getElementById('room-id').textContent = spaceId;
+
+  function hidePlayQuizHud() {
+    const sb = document.getElementById('play-quiz-scoreboard');
+    if (sb) sb.classList.add('is-hidden');
+    const fb = document.getElementById('play-quiz-feedback');
+    if (fb) { fb.classList.add('is-hidden'); fb.textContent = ''; }
+  }
+
+  function renderPlayQuizScoreboard(scores) {
+    const wrap = document.getElementById('play-quiz-scoreboard');
+    const ul = document.getElementById('play-quiz-scoreboard-list');
+    if (!wrap || !ul || !mapData || (!isQuiz() && !isQuizCarry() && !isQuizBattle())) return;
+    if (!scores || typeof scores !== 'object') return;
+    wrap.classList.remove('is-hidden');
+    ul.textContent = '';
+    const merged = { ...scores };
+    others.forEach((_, id) => { if (merged[id] == null) merged[id] = 0; });
+    if (myId != null && merged[myId] == null) merged[myId] = 0;
+    const rows = [];
+    if (myId != null) {
+      rows.push({ id: myId, nick: me.nickname || 'คุณ', sc: merged[myId] != null ? merged[myId] : 0 });
+    }
+    others.forEach((o, id) => {
+      rows.push({ id, nick: (o && o.nickname) ? String(o.nickname) : id, sc: merged[id] != null ? merged[id] : 0 });
+    });
+    rows.sort((a, b) => b.sc - a.sc || a.nick.localeCompare(b.nick, 'th'));
+    rows.forEach((row) => {
+      const li = document.createElement('li');
+      if (row.id === myId) li.className = 'play-quiz-scoreboard-me';
+      const spN = document.createElement('span');
+      spN.className = 'play-quiz-scoreboard-name';
+      spN.textContent = row.nick;
+      const spV = document.createElement('span');
+      spV.className = 'play-quiz-scoreboard-val';
+      spV.textContent = String(row.sc);
+      li.appendChild(spN);
+      li.appendChild(spV);
+      ul.appendChild(li);
+    });
+    if (isQuizCarry() && useCyberPlayHud()) {
+      wrap.classList.add('is-hidden');
+    }
+  }
+
+  function initPlayLiveQuizScoresZeros() {
+    if ((!isQuiz() && !isQuizCarry() && !isQuizBattle()) || myId == null) return;
+    playLiveQuizScores = {};
+    playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  function showPlayQuizFeedback(r) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el || !r || !r.results || myId == null) return;
+    let mine = null;
+    let botRight = 0, botWrong = 0;
+    for (let i = 0; i < r.results.length; i++) {
+      const row = r.results[i];
+      if (row.id === myId) mine = row;
+      else if (isPreviewBotId(row.id)) {
+        if (row.right) botRight++;
+        else botWrong++;
+      }
+    }
+    if (!mine) return;
+    el.classList.remove('is-hidden');
+    const botExtra = previewFillBots && (botRight + botWrong > 0)
+      ? ' · บอท ถูก ' + botRight + ' / ผิด ' + botWrong + ' (Bots: ' + botRight + ' right / ' + botWrong + ' wrong)'
+      : '';
+    if (mine.right) {
+      el.className = 'play-quiz-feedback play-quiz-feedback-ok';
+      el.textContent = 'คุณตอบถูก · คะแนนรวม ' + (typeof mine.score === 'number' ? mine.score : 0) + ' แต้ม' + botExtra;
+    } else {
+      el.className = 'play-quiz-feedback play-quiz-feedback-bad';
+      el.textContent = (mine.choice == null
+        ? 'คุณไม่ได้ยืนในโซนตอบ — นับเป็นผิด'
+        : 'คุณตอบผิด — กลับจุดเกิด และเข้าโซนตอบไม่ได้อีก') + botExtra;
+    }
+    if (typeof window.__playQuizFeedbackT === 'number') clearTimeout(window.__playQuizFeedbackT);
+    window.__playQuizFeedbackT = setTimeout(() => { el.classList.add('is-hidden'); }, 4200);
+  }
+
+  function getTileBoundsForOnesGrid(grid) {
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  function getQuizQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  /** quiz_carry: โซนทองพิเศษสำหรับข้อความคำถาม (ถ้าไม่วาด ใช้โซนกลางม่วงแทนใน syncPlayQuizMapPanel) */
+  function getQuizCarryQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  function clearQuizMapPanelThemeInline(panel, textEl) {
+    if (!panel || !textEl) return;
+    panel.style.removeProperty('--qmap-bg');
+    panel.style.removeProperty('--qmap-border');
+    panel.style.removeProperty('--qmap-border-w');
+    panel.style.removeProperty('--qmap-shadow');
+    panel.style.removeProperty('background');
+    panel.style.removeProperty('border');
+    panel.style.removeProperty('border-color');
+    panel.style.removeProperty('border-width');
+    panel.style.removeProperty('border-style');
+    panel.style.removeProperty('box-shadow');
+    textEl.style.removeProperty('--qmap-text');
+    textEl.style.removeProperty('--qmap-text-shadow');
+    textEl.style.removeProperty('color');
+    textEl.style.removeProperty('text-shadow');
+    textEl.style.removeProperty('font-size');
+    textEl.style.removeProperty('line-height');
+    textEl.style.removeProperty('width');
+    textEl.style.removeProperty('box-sizing');
+    textEl.style.removeProperty('max-height');
+    textEl.style.removeProperty('overflow');
+  }
+
+  function clearQuizMapQuestionCarryFeedback() {
+    if (typeof window.__quizMapCarryFeedbackT === 'number') {
+      clearTimeout(window.__quizMapCarryFeedbackT);
+      window.__quizMapCarryFeedbackT = null;
+    }
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (icon) {
+      icon.classList.add('is-hidden');
+      icon.removeAttribute('src');
+    }
+    if (scoreEl) scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+    if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  /** ไอคอนถูก/ผิดที่ขอบบนแผง + score+10 ตรงกลางใต้ข้อความ (เฉพาะถูก) — ตาม mock quiz_carry */
+  function showQuizMapQuestionCarryFeedback(isCorrect) {
+    if (!isQuizCarry()) return;
+    const panel = document.getElementById('quiz-map-question-panel');
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (!panel || !icon || panel.classList.contains('is-hidden')) return;
+    clearQuizMapQuestionCarryFeedback();
+    icon.src = isCorrect ? QUIZ_CARRY_MAP_FEEDBACK_IMG.correct : QUIZ_CARRY_MAP_FEEDBACK_IMG.incorrect;
+    icon.classList.remove('is-hidden');
+    if (isCorrect && scoreWrap && scoreEl) {
+      scoreEl.src = QUIZ_CARRY_MAP_FEEDBACK_IMG.scorePlus;
+      scoreWrap.classList.remove('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'false');
+      scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+      void scoreEl.offsetWidth;
+      scoreEl.classList.add('quiz-map-q-feedback-score--pop');
+    } else if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+    window.__quizMapCarryFeedbackT = setTimeout(() => {
+      window.__quizMapCarryFeedbackT = null;
+      clearQuizMapQuestionCarryFeedback();
+    }, QUIZ_MAP_CARRY_FEEDBACK_MS);
+  }
+
+  /** ค่าเริ่มต้นแผงคำถามบนแผนที่ (ตรงกับ server defaultCarryMapPanelTheme) — ใช้เมื่อยังไม่โหลดจาก API */
+  function defaultCarryMapPanelThemePlay() {
+    return {
+      panelBg: 'rgba(12, 14, 28, 0.88)',
+      panelBorder: 'rgba(255, 214, 102, 0.7)',
+      borderWidthPx: 2,
+      textColor: '#f1f5f9',
+      questionFontMinPx: 10,
+      questionFontMaxPx: 24,
+    };
+  }
+
+  /** ตรงกับ drawQuizCarryChoiceLabels — carryChoicePlaqueMapScale */
+  function quizCarryPlaqueMapScaleClampedPlay() {
+    const sc = Number(quizCarryPlaqueMapScale);
+    if (!Number.isFinite(sc)) return 1.25;
+    return Math.max(0.85, Math.min(2.5, sc));
+  }
+
+  /**
+   * ขนาดตัวอักษรแผงคำถาม DOM ให้เท่าป้ายคำตอบบนพื้น: Math.max(10, Math.min(24, tileSize*zoom*0.24*ps))
+   * แล้ว clamp ด้วย questionFontMinPx / questionFontMaxPx จากธีม (ถ้าต้องการใหญ่กว่าป้ายได้โดยยกเพดาน max)
+   */
+  function quizMapQuestionFontPxLikeCarryPlaques(th, zoomVal) {
+    const ts = tileSize * zoomVal;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const base = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    const fb = defaultCarryMapPanelThemePlay();
+    let mn = Number(th && th.questionFontMinPx);
+    let mx = Number(th && th.questionFontMaxPx);
+    if (!Number.isFinite(mn)) mn = fb.questionFontMinPx;
+    if (!Number.isFinite(mx)) mx = fb.questionFontMaxPx;
+    mn = Math.round(Math.max(8, Math.min(40, mn)));
+    mx = Math.round(Math.max(10, Math.min(72, mx)));
+    if (mx < mn) {
+      const s = mn;
+      mn = mx;
+      mx = s;
+    }
+    return Math.max(mn, Math.min(mx, base));
+  }
+
+  /**
+   * ลด px ทีละ 1 จนเนื้อหาไม่ล้นกล่อง (ไม่ใช้ scrollbar)
+   * zoom out กล่องเตี้ยมาก: อนุญาตต่ำกว่า questionFontMinPx ของธีมได้ถึง hardMin (≥6) ไม่ให้บรรทัดถูกตัด
+   * แผงใช้ justify-content:flex-start ใน CSS — ไม่จัดกึ่งกลางแนวตั้งแล้วโดน overflow ตัดบน-ล่าง
+   */
+  function fitQuizMapQuestionFontToPanel(panel, textEl, startPx, minPx) {
+    const cs = window.getComputedStyle(panel);
+    const padT = parseFloat(cs.paddingTop) || 0;
+    const padB = parseFloat(cs.paddingBottom) || 0;
+    const padL = parseFloat(cs.paddingLeft) || 0;
+    const padR = parseFloat(cs.paddingRight) || 0;
+    const availH = Math.max(12, panel.clientHeight - padT - padB);
+    const availW = Math.max(24, panel.clientWidth - padL - padR);
+    const themeMin = Math.max(8, Math.floor(Number(minPx) || 8));
+    const hardMin = Math.min(themeMin, Math.max(6, Math.floor(availH / 7)));
+    let px = Math.round(Math.min(80, Math.max(hardMin, Number(startPx) || hardMin)));
+    textEl.style.setProperty('line-height', '1.28', 'important');
+    textEl.style.setProperty('width', '100%', 'important');
+    textEl.style.setProperty('box-sizing', 'border-box', 'important');
+    textEl.style.removeProperty('max-height');
+    textEl.style.setProperty('overflow', 'hidden', 'important');
+    for (let i = 0; i < 96 && px > hardMin; i++) {
+      textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+      const sh = textEl.scrollHeight;
+      const sw = textEl.scrollWidth;
+      if (sh <= availH + 2 && sw <= availW + 2) break;
+      px -= 1;
+    }
+    textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+    textEl.style.setProperty('max-height', availH + 'px', 'important');
+  }
+
+  /** ธีมจาก quiz-settings / join API — ถ้า JSON ไม่มีฟอนต์ให้ใช้ค่าเริ่มต้น */
+  function parseCarryMapPanelThemeObject(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const fb = defaultCarryMapPanelThemePlay();
+    let qMin = Number(t.questionFontMinPx);
+    let qMax = Number(t.questionFontMaxPx);
+    if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+    if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+    qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+    qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+    if (qMax < qMin) {
+      const s = qMin;
+      qMin = qMax;
+      qMax = s;
+    }
+    return {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+      questionFontMinPx: qMin,
+      questionFontMaxPx: qMax,
+    };
+  }
+
+  /**
+   * ชั้นทับจาก carryMapPanelTheme ในไฟล์แมป — ฟอนต์ใส่เฉพาะเมื่อ JSON มี key จริง
+   * (กันธีมแมปมีแค่สีแล้วไปทับขนาดฟอนต์จาก Admin เป็นค่าเริ่ม 16/24)
+   */
+  function parseCarryMapPanelThemeMapOverlay(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const out = {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+    };
+    const hasMin = Object.prototype.hasOwnProperty.call(t, 'questionFontMinPx');
+    const hasMax = Object.prototype.hasOwnProperty.call(t, 'questionFontMaxPx');
+    if (hasMin || hasMax) {
+      const fb = defaultCarryMapPanelThemePlay();
+      let qMin = hasMin ? Number(t.questionFontMinPx) : fb.questionFontMinPx;
+      let qMax = hasMax ? Number(t.questionFontMaxPx) : fb.questionFontMaxPx;
+      if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+      if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+      qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+      qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+      if (qMax < qMin) {
+        const s = qMin;
+        qMin = qMax;
+        qMax = s;
+      }
+      out.questionFontMinPx = qMin;
+      out.questionFontMaxPx = qMax;
+    }
+    return out;
+  }
+
+  function setQuizCarryMapPanelThemeFromApi(s) {
+    quizCarryMapPanelTheme = null;
+    if (!s || typeof s !== 'object') return;
+    const parsed = parseCarryMapPanelThemeObject(s.carryMapPanelTheme);
+    if (!parsed) return;
+    quizCarryMapPanelTheme = parsed;
+  }
+
+  function defaultCarryChoicePlaqueThemePlay() {
+    return {
+      borderMode: 'neon',
+      fixedBorder: 'rgba(122, 200, 255, 0.9)',
+      fillBg: 'rgba(12, 10, 20, 0.88)',
+      textColor: 'rgba(248, 249, 255, 1)',
+      borderWidthPx: 2.5,
+      plaqueImageUrl: '',
+    };
+  }
+
+  function parseCarryChoicePlaqueThemeObject(raw) {
+    const d = defaultCarryChoicePlaqueThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const safeColor = (x, fb) => {
+      const t = String(x == null ? '' : x).trim().slice(0, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    const mode = String(raw.borderMode || '').toLowerCase() === 'fixed' ? 'fixed' : 'neon';
+    let bw = Number(raw.borderWidthPx);
+    if (!Number.isFinite(bw)) bw = d.borderWidthPx;
+    bw = Math.round(Math.max(0, Math.min(8, bw)) * 10) / 10;
+    return {
+      borderMode: mode,
+      fixedBorder: safeColor(raw.fixedBorder, d.fixedBorder),
+      fillBg: safeColor(raw.fillBg, d.fillBg),
+      textColor: safeColor(raw.textColor, d.textColor),
+      borderWidthPx: bw,
+      plaqueImageUrl: sanitizeQuizCarryImageUrlClient(raw.plaqueImageUrl),
+    };
+  }
+
+  function buildCarryChoicePlaqueThemesArrayFromApi(s) {
+    if (!s || typeof s !== 'object') return null;
+    if (Array.isArray(s.carryChoicePlaqueThemes) && s.carryChoicePlaqueThemes.length) {
+      const out = [];
+      for (let i = 0; i < QUIZ_CARRY_MAX_OPTION_SLOTS; i++) {
+        out.push(parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueThemes[i]));
+      }
+      return out;
+    }
+    if (s.carryChoicePlaqueTheme && typeof s.carryChoicePlaqueTheme === 'object') {
+      const one = parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueTheme);
+      return Array.from({ length: QUIZ_CARRY_MAX_OPTION_SLOTS }, () => ({ ...one }));
+    }
+    return null;
+  }
+
+  function getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex) {
+    const i = Math.max(0, Math.min(QUIZ_CARRY_MAX_OPTION_SLOTS - 1, choiceIndex | 0));
+    if (quizCarryChoicePlaqueThemes && quizCarryChoicePlaqueThemes[i]) {
+      return quizCarryChoicePlaqueThemes[i];
+    }
+    return defaultCarryChoicePlaqueThemePlay();
+  }
+
+  function setQuizCarryChoicePlaqueThemeFromApi(s) {
+    quizCarryChoicePlaqueThemes = buildCarryChoicePlaqueThemesArrayFromApi(s);
+  }
+
+  function sanitizeQuizCarryImageUrlClient(u) {
+    const s = String(u == null ? '' : u).trim().slice(0, 512);
+    if (!s || /[\s<>'"`]/.test(s)) return '';
+    if (s.startsWith('/')) {
+      if (!/^\/[\w\-./?#=&%+]+$/i.test(s)) return '';
+      return s;
+    }
+    const low = s.toLowerCase();
+    if (!low.startsWith('https://') && !low.startsWith('http://')) return '';
+    try {
+      const parsed = new URL(s);
+      if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') return '';
+      return s;
+    } catch (e) {
+      return '';
+    }
+  }
+
+  /** crossOrigin=anonymous กับ same-origin บางเซิร์ฟ/nginx ทำให้โหลดรูปล้ม — ใช้เฉพาะข้ามโดเมน */
+  function quizCarryApplyImageCrossOrigin(img, rawUrl) {
+    if (!img) return;
+    try {
+      img.removeAttribute('crossorigin');
+      const u = sanitizeQuizCarryImageUrlClient(rawUrl);
+      if (!u || u.startsWith('data:')) return;
+      let imgOrigin = '';
+      if (u.startsWith('http://') || u.startsWith('https://')) {
+        imgOrigin = new URL(u).origin;
+      } else if (u.startsWith('/')) {
+        imgOrigin = window.location.origin;
+      }
+      if (imgOrigin && imgOrigin !== window.location.origin) {
+        img.crossOrigin = 'anonymous';
+      }
+    } catch (e) { /* ignore */ }
+  }
+
+  function preloadQuizCarryChoiceImages(q) {
+    if (!q) return;
+    if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+      for (let i = 0; i < q.choiceImageUrls.length; i++) {
+        const raw = sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[i]);
+        if (!raw) continue;
+        if (quizCarryChoiceImageCache.has(raw)) continue;
+        const im = new Image();
+        quizCarryApplyImageCrossOrigin(im, raw);
+        im.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw, im);
+        try {
+          im.src = raw;
+        } catch (e) { /* ignore */ }
+      }
+    }
+    if (Array.isArray(q.choices)) {
+      for (let j = 0; j < q.choices.length; j++) {
+        const raw2 = getQuizCarryPlaqueImageUrlForIndex(q, j);
+        if (!raw2 || quizCarryChoiceImageCache.has(raw2)) continue;
+        const im2 = new Image();
+        quizCarryApplyImageCrossOrigin(im2, raw2);
+        im2.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw2, im2);
+        try {
+          im2.src = raw2;
+        } catch (e) { /* ignore */ }
+      }
+    }
+  }
+
+  function getQuizCarryChoiceImageCached(url) {
+    const u = sanitizeQuizCarryImageUrlClient(url);
+    if (!u) return null;
+    const im = quizCarryChoiceImageCache.get(u);
+    if (im && im.complete && im.naturalWidth > 0) return im;
+    return null;
+  }
+
+  function getQuizCarryChoiceImageUrlForIndex(q, idx) {
+    if (!q || !Array.isArray(q.choiceImageUrls)) return '';
+    const u = q.choiceImageUrls[idx];
+    return sanitizeQuizCarryImageUrlClient(u);
+  }
+
+  /** รูปป้าย: คำถามต่อช่องก่อน แล้วค่อยรูปจากธีมช่อง (carryChoicePlaqueThemes) */
+  function getQuizCarryPlaqueImageUrlForIndex(q, idx) {
+    const perQ = getQuizCarryChoiceImageUrlForIndex(q, idx);
+    if (perQ) return perQ;
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(idx);
+    const u = th && th.plaqueImageUrl ? sanitizeQuizCarryImageUrlClient(th.plaqueImageUrl) : '';
+    return u || '';
+  }
+
+  function defaultCarryEmbedCountdownThemePlay() {
+    return {
+      overlayBackdrop: 'rgba(8, 10, 20, 0.42)',
+      innerBg: 'rgba(12, 14, 28, 0.82)',
+      innerBorder: 'rgba(122, 162, 247, 0.45)',
+      innerBorderWpx: 1,
+      innerRadiusPx: 12,
+      digitColor: '#ffe066',
+      mapDigitCqmin: 78,
+      mapDigitCqh: 82,
+      mapDigitMaxPx: 200,
+      screenDigitVw: 28,
+      screenDigitMaxPx: 132,
+    };
+  }
+
+  function parseCarryEmbedCountdownThemeObject(raw) {
+    const d = defaultCarryEmbedCountdownThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const clampN = (v, lo, hi, def) => {
+      const n = Number(v);
+      if (!Number.isFinite(n)) return def;
+      return Math.max(lo, Math.min(hi, Math.round(n)));
+    };
+    const clipStr = (x, maxLen) => {
+      const t = String(x == null ? '' : x).trim().slice(0, maxLen);
+      return t || null;
+    };
+    const safeColor = (x, fb) => {
+      const t = clipStr(x, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    return {
+      overlayBackdrop: safeColor(raw.overlayBackdrop, d.overlayBackdrop),
+      innerBg: safeColor(raw.innerBg, d.innerBg),
+      innerBorder: safeColor(raw.innerBorder, d.innerBorder),
+      innerBorderWpx: clampN(raw.innerBorderWpx, 0, 12, d.innerBorderWpx),
+      innerRadiusPx: clampN(raw.innerRadiusPx, 0, 32, d.innerRadiusPx),
+      digitColor: safeColor(raw.digitColor, d.digitColor),
+      mapDigitCqmin: clampN(raw.mapDigitCqmin, 35, 100, d.mapDigitCqmin),
+      mapDigitCqh: clampN(raw.mapDigitCqh, 35, 100, d.mapDigitCqh),
+      mapDigitMaxPx: clampN(raw.mapDigitMaxPx, 48, 400, d.mapDigitMaxPx),
+      screenDigitVw: clampN(raw.screenDigitVw, 6, 44, d.screenDigitVw),
+      screenDigitMaxPx: clampN(raw.screenDigitMaxPx, 48, 220, d.screenDigitMaxPx),
+    };
+  }
+
+  function setQuizCarryEmbedCountdownThemeFromApi(s) {
+    quizCarryEmbedCountdownTheme = parseCarryEmbedCountdownThemeObject(s && s.carryEmbedCountdownTheme);
+    applyQuizCarryEmbedCountdownThemeToDom();
+  }
+
+  const CARRY_ECD_VAR_KEYS = [
+    '--carry-ecd-overlay',
+    '--carry-ecd-inner-bg',
+    '--carry-ecd-inner-border',
+    '--carry-ecd-inner-border-w',
+    '--carry-ecd-inner-radius',
+    '--carry-ecd-digit-color',
+    '--carry-ecd-map-digit-fs',
+    '--carry-ecd-screen-vw',
+    '--carry-ecd-screen-max',
+  ];
+
+  function clearQuizCarryEmbedCountdownThemeDomVars() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    if (!root) return;
+    CARRY_ECD_VAR_KEYS.forEach((k) => { try { root.style.removeProperty(k); } catch (e) { /* ignore */ } });
+  }
+
+  /** ใส่ CSS variables บน #quiz-carry-embed-countdown — อ่านจาก quizCarryEmbedCountdownTheme */
+  function applyQuizCarryEmbedCountdownThemeToDom() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (!root) return;
+    clearQuizCarryEmbedCountdownThemeDomVars();
+    const th = quizCarryEmbedCountdownTheme || defaultCarryEmbedCountdownThemePlay();
+    root.style.setProperty('--carry-ecd-overlay', th.overlayBackdrop);
+    root.style.setProperty('--carry-ecd-inner-bg', th.innerBg);
+    root.style.setProperty('--carry-ecd-inner-border', th.innerBorder);
+    root.style.setProperty('--carry-ecd-inner-border-w', `${Math.max(0, Math.min(12, Math.round(Number(th.innerBorderWpx) || 1)))}px`);
+    root.style.setProperty('--carry-ecd-inner-radius', `${Math.max(0, Math.min(32, Math.round(Number(th.innerRadiusPx) || 12)))}px`);
+    root.style.setProperty('--carry-ecd-digit-color', th.digitColor);
+    const cqmin = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqmin) || 78)));
+    const cqh = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqh) || 82)));
+    const mpx = Math.max(48, Math.min(400, Math.round(Number(th.mapDigitMaxPx) || 200)));
+    root.style.setProperty('--carry-ecd-map-digit-fs', `clamp(14px, min(${cqmin}cqmin, ${cqh}cqh), ${mpx}px)`);
+    const vw = Math.max(6, Math.min(44, Math.round(Number(th.screenDigitVw) || 28)));
+    const smx = Math.max(48, Math.min(220, Math.round(Number(th.screenDigitMaxPx) || 132)));
+    root.style.setProperty('--carry-ecd-screen-vw', `${vw}vw`);
+    root.style.setProperty('--carry-ecd-screen-max', `${smx}px`);
+    if (numEl) {
+      numEl.style.textShadow = '0 0 0.45em currentColor, 0 4px 14px rgba(0,0,0,0.55)';
+    }
+  }
+
+  /** default ← quiz-settings/API ← แมป (สีจากแมปทับได้; ฟอนต์จากแมปเฉพาะเมื่อแมประบุ key) */
+  function getEffectiveCarryMapPanelThemeForApply() {
+    const d = defaultCarryMapPanelThemePlay();
+    const api = quizCarryMapPanelTheme != null && typeof quizCarryMapPanelTheme === 'object' ? quizCarryMapPanelTheme : null;
+    let merged = api ? { ...d, ...api } : { ...d };
+    if (mapData && mapData.carryMapPanelTheme != null) {
+      const mp = parseCarryMapPanelThemeMapOverlay(mapData.carryMapPanelTheme);
+      if (mp) merged = { ...merged, ...mp };
+    }
+    return merged;
+  }
+
+  function applyQuizCarryMapPanelThemeIfNeeded(panel, textEl) {
+    if (!panel || !textEl) return;
+    if (!isQuizCarry()) {
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const th = getEffectiveCarryMapPanelThemeForApply();
+    clearQuizMapPanelThemeInline(panel, textEl);
+    const bgStr = th.panelBg != null ? String(th.panelBg).trim() : '';
+    const brStr = th.panelBorder != null ? String(th.panelBorder).trim() : '';
+    const txStr = th.textColor != null ? String(th.textColor).trim() : '';
+    const wRaw = Number(th.borderWidthPx);
+    const w = Number.isFinite(wRaw) ? Math.max(0, Math.min(12, Math.round(wRaw))) : 0;
+    const bgUse = bgStr || 'transparent';
+    const brUse = brStr || 'transparent';
+    const txUse = txStr || '#f1f5f9';
+    panel.style.setProperty('--qmap-bg', bgUse);
+    panel.style.setProperty('--qmap-border', brUse);
+    panel.style.setProperty('--qmap-border-w', String(w) + 'px');
+    panel.style.setProperty('--qmap-shadow', 'none');
+    textEl.style.setProperty('--qmap-text', txUse);
+    textEl.style.setProperty('--qmap-text-shadow', 'none');
+    /* โหลด play.html แบบแคชเก่า (ไม่มี var) ยังต้องทับได้ — ใช้ !important คู่กับตัวแปร */
+    panel.style.setProperty('background', bgUse, 'important');
+    panel.style.setProperty('border', String(w) + 'px solid ' + brUse, 'important');
+    panel.style.setProperty('box-shadow', 'none', 'important');
+    textEl.style.setProperty('color', txUse, 'important');
+    textEl.style.setProperty('text-shadow', 'none', 'important');
+  }
+
+  function syncPlayQuizMapPanel() {
+    const panel = document.getElementById('quiz-map-question-panel');
+    const textEl = document.getElementById('quiz-map-question-text');
+    if (!panel || !textEl || !mapData) return;
+    /* เอดิเตอร์ embed: ซ่อนแผงทองเฉพาะโหมด quiz (ทับกลาง) — quiz_carry ต้องโชว์ตามโซนที่วาดบนแผนที่ */
+    if (previewMode && editorEmbedReturn && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (isQuizBattle()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (!isQuiz() && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      return;
+    }
+    const bounds = isQuiz()
+      ? getQuizQuestionAreaTileBounds(mapData)
+      : (getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData));
+    const text = (playQuizText || '').trim();
+    if (!bounds || !text) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    textEl.textContent = text;
+    panel.style.left = Math.round(left) + 'px';
+    panel.style.top = Math.round(top) + 'px';
+    panel.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    panel.style.height = Math.round(Math.max(40, hPx)) + 'px';
+    panel.classList.remove('is-hidden');
+    panel.setAttribute('aria-hidden', 'false');
+    applyQuizCarryMapPanelThemeIfNeeded(panel, textEl);
+    const thFont = getEffectiveCarryMapPanelThemeForApply();
+    const startFontPx = quizMapQuestionFontPxLikeCarryPlaques(thFont, zoom);
+    const mnFont = Math.max(8, Math.round(Number(thFont.questionFontMinPx) || 10));
+    fitQuizMapQuestionFontToPanel(panel, textEl, startFontPx, mnFont);
+  }
+
+  /** โซนเดียวกับแผงคำถามบนแผนที่ — ยึด timeup ให้ตรงกล่อง #quiz-map-question-panel (ห้ามคำนวณซ้ำแล้วคลาด) */
+  function syncQuizCarryTimeupDeskLayerPosition() {
+    const layer = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!layer || layer.classList.contains('is-hidden')) return;
+    const anchor = layer.querySelector('.qc-timeup-desk-anchor')
+      || layer.querySelector('.qc-timeup-desk-inner')
+      || (() => {
+        const img = document.getElementById('quiz-carry-timeup-txt-img');
+        return img && img.parentElement && img.parentElement !== layer ? img.parentElement : null;
+      })();
+    if (!anchor || !canvas) return;
+    const clearToFullStack = () => {
+      anchor.style.left = '0';
+      anchor.style.top = '0';
+      anchor.style.width = '100%';
+      anchor.style.height = '100%';
+    };
+    const stack = document.getElementById('play-canvas-stack');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (stack && panel && !panel.classList.contains('is-hidden')) {
+      try {
+        const sr = stack.getBoundingClientRect();
+        const pr = panel.getBoundingClientRect();
+        const rw = pr.width;
+        const rh = pr.height;
+        if (rw >= 8 && rh >= 8 && sr.width > 0 && sr.height > 0) {
+          anchor.style.left = Math.round(pr.left - sr.left) + 'px';
+          anchor.style.top = Math.round(pr.top - sr.top) + 'px';
+          anchor.style.width = Math.round(rw) + 'px';
+          anchor.style.height = Math.round(rh) + 'px';
+          return;
+        }
+      } catch (e) { /* fallback ด้านล่าง */ }
+    }
+    const pl = panel && panel.style && String(panel.style.left || '').trim();
+    const pt = panel && panel.style && String(panel.style.top || '').trim();
+    const pw = panel && panel.style && String(panel.style.width || '').trim();
+    const ph = panel && panel.style && String(panel.style.height || '').trim();
+    if (pl && pt && pw && ph) {
+      anchor.style.left = pl;
+      anchor.style.top = pt;
+      anchor.style.width = pw;
+      anchor.style.height = ph;
+      return;
+    }
+    if (!mapData || mapData.gameType !== 'quiz_carry') {
+      clearToFullStack();
+      return;
+    }
+    const bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+    if (!bounds) {
+      clearToFullStack();
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    anchor.style.left = Math.round(left) + 'px';
+    anchor.style.top = Math.round(top) + 'px';
+    anchor.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    anchor.style.height = Math.round(Math.max(40, hPx)) + 'px';
+  }
+
+  function carryEmbedCountdownAnchorResolved() {
+    if (!mapData || !isQuizCarry()) return 'screen';
+    const v = mapData.carryEmbedCountdownAnchor;
+    if (v === 'grid' || v === 'map') return v;
+    return 'screen';
+  }
+
+  function resetQuizCarryEmbedCountdownLayoutDom() {
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    if (ov) ov.classList.remove('quiz-carry-embed-countdown--map-anchor');
+    if (inner) {
+      inner.classList.remove('quiz-carry-embed-countdown-inner--map-rect');
+      inner.style.position = '';
+      inner.style.left = '';
+      inner.style.top = '';
+      inner.style.width = '';
+      inner.style.height = '';
+      inner.style.transform = '';
+      inner.style.maxWidth = '';
+      inner.style.boxSizing = '';
+      inner.style.display = '';
+      inner.style.margin = '';
+    }
+  }
+
+  /** พรีวิว embed: วางกล่อง 3–2–1 กลางจอ / ชิดโซนทองหรือโซนกลาง / ชิดกริด carryEmbedCountdownArea — ตาม carryEmbedCountdownAnchor */
+  function syncQuizCarryEmbedCountdownLayout() {
+    if (!previewMode || !editorEmbedReturn || !mapData || !isQuizCarry()) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    const canvasEl = document.getElementById('game-canvas');
+    if (!ov || !inner || !canvasEl) return;
+    if (ov.classList.contains('is-hidden')) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const anchor = carryEmbedCountdownAnchorResolved();
+    if (anchor === 'screen') {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    let bounds = null;
+    if (anchor === 'grid') {
+      bounds = getTileBoundsForOnesGrid(mapData.carryEmbedCountdownArea);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    } else {
+      bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const l = (bounds.minX * tileSize - camX) * zoom + canvasEl.width / 2;
+    const t = (bounds.minY * tileSize - camY) * zoom + canvasEl.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    const r = canvasEl.getBoundingClientRect();
+    const sl = r.left + l;
+    const st = r.top + t;
+    ov.classList.add('quiz-carry-embed-countdown--map-anchor');
+    inner.classList.add('quiz-carry-embed-countdown-inner--map-rect');
+    inner.style.position = 'fixed';
+    inner.style.left = Math.round(sl) + 'px';
+    inner.style.top = Math.round(st) + 'px';
+    inner.style.width = Math.round(Math.max(100, wPx)) + 'px';
+    inner.style.height = Math.round(Math.max(72, hPx)) + 'px';
+    inner.style.transform = 'none';
+    inner.style.boxSizing = 'border-box';
+    inner.style.display = 'flex';
+    inner.style.flexDirection = 'column';
+    inner.style.alignItems = 'center';
+    inner.style.justifyContent = 'center';
+    inner.style.margin = '0';
+    inner.style.maxWidth = 'none';
+  }
+
+  /** quiz_carry + embed: คำถามไปที่แผงทองบนแผนที่ / ใน overlay นับถอยหลัง — ไม่ใช้แถบบน */
+  function syncQuizCarryEmbedQuestionStrip() {
+    const wrap = document.getElementById('quiz-carry-embed-q-strip');
+    const p = document.getElementById('quiz-carry-embed-q-strip-text');
+    if (!wrap || !p) return;
+    wrap.classList.remove('quiz-carry-embed-q-strip--countdown');
+    wrap.classList.add('is-hidden');
+    wrap.setAttribute('aria-hidden', 'true');
+  }
+
+  function updatePlayQuizTimerDisplay() {
+    const el = document.getElementById('quiz-game-timer');
+    if (!el) return;
+    if (!playQuizPhaseEndsAt) {
+      el.textContent = '';
+      return;
+    }
+    const s = Math.max(0, Math.ceil((playQuizPhaseEndsAt - Date.now()) / 1000));
+    el.textContent = s + ' วินาที';
+  }
+
+  function clampPreviewMs(n, def, minV, maxV) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(minV, Math.min(maxV, Math.floor(v)));
+  }
+
+  function clampCarrySessionLen(n, def) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(0, Math.min(500, Math.floor(v)));
+  }
+
+  function buildQuizPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    return md.quizQuestions
+      .filter((q) => q && String(q.text || '').trim())
+      .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+  }
+
+  function pickRandomQuizFromPool(pool) {
+    if (!pool || !pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function clearPreviewBotAnswerPaths() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function resetPreviewBotsQuizState() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.quizCannotTrue = false;
+      o.quizCannotFalse = false;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function applyPreviewReadPhase(q, poolLen) {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'read';
+    playQuizPhaseLocal = 'read';
+    previewQuizCurrent = q;
+    playQuizText = q.text;
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.readMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] อ่านคำถาม · สุ่มจากชุด ' + poolLen + ' ข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'โซนทองบนแผนที่ = ข้อความคำถาม · ฟ้า = จริง · ชมพู = เท็จ';
+  }
+
+  function applyPreviewAnswerPhase() {
+    previewQuizStep = 'answer';
+    playQuizPhaseLocal = 'answer';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.answerMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] เดินไปโซน ถูก / ผิด';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg && previewQuizCurrent) {
+      leg.textContent = previewQuizCurrent.answerTrue
+        ? 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «จริง» — โซนสีฟ้า'
+        : 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «เท็จ» — โซนสีชมพู';
+    }
+    previewBotsPrepareAnswerRound();
+  }
+
+  function applyPreviewBetweenPhase() {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'between';
+    playQuizPhaseLocal = null;
+    playQuizText = 'ข้อถัดไปกำลังจะมา…';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.betweenMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] พักระหว่างข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'รอสักครู่แล้วจะสุ่มคำถามใหม่จากชุดเดิม';
+  }
+
+  function quizCellOnPlay(grid, x, y) {
+    return !!(grid && grid[y] && grid[y][x] === 1);
+  }
+
+  function spawnTileWalkablePlay(md, x, y) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    if (x < 0 || x >= w || y < 0 || y >= h) return false;
+    const row = md.objects && md.objects[y];
+    if (row && row[x] === 1) return false;
+    return true;
+  }
+
+  /** เหมือน server pickRandomSpawnFromMap — สุ่มด้วย crypto.getRandomValues */
+  function pickRandomSpawnFromMapPlay(md) {
+    const fallback = md.spawn || { x: 1, y: 1 };
+    const fx = Number.isFinite(Number(fallback.x)) ? Number(fallback.x) : 1;
+    const fy = Number.isFinite(Number(fallback.y)) ? Number(fallback.y) : 1;
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return { x: fx, y: fy };
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return { x: fx, y: fy };
+    const u = new Uint32Array(1);
+    (typeof crypto !== 'undefined' && crypto.getRandomValues)
+      ? crypto.getRandomValues(u)
+      : (u[0] = (Math.floor(Math.random() * 0xffffffff) >>> 0));
+    const pick = pool[u[0] % pool.length];
+    return { x: pick.x, y: pick.y };
+  }
+
+  function parseLobbyPlayerSpawnsFromMapPlay(md) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const out = [null, null, null, null, null, null];
+    const raw = md && md.lobbyPlayerSpawns;
+    if (!Array.isArray(raw)) return out;
+    for (let i = 0; i < 6 && i < raw.length; i++) {
+      const cell = raw[i];
+      if (!cell || typeof cell !== 'object') continue;
+      const x = Math.floor(Number(cell.x));
+      const y = Math.floor(Number(cell.y));
+      if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
+      if (x < 0 || x >= w || y < 0 || y >= h) continue;
+      out[i] = { x, y };
+    }
+    return out;
+  }
+
+  /** สอดคล้องกับ server pickSpawnForJoin — ใช้พรีวิวบอท / ทดสอบ */
+  function pickSpawnForJoinPlay(md, joinOrderIndex) {
+    if (!md) return { x: 1, y: 1 };
+    const mode = md.lobbySpawnMode;
+    const ord = joinOrderIndex | 0;
+    if (mode === 'slots6' && ord >= 6) return pickRandomSpawnFromMapPlay(md);
+    const j = Math.min(Math.max(0, ord), 5);
+    if (mode === 'fixed' && md.spawn) {
+      const fx = Number.isFinite(Number(md.spawn.x)) ? Math.floor(Number(md.spawn.x)) : 1;
+      const fy = Number.isFinite(Number(md.spawn.y)) ? Math.floor(Number(md.spawn.y)) : 1;
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const x = Math.max(0, Math.min(w - 1, fx));
+      const y = Math.max(0, Math.min(h - 1, fy));
+      if (spawnTileWalkablePlay(md, x, y)) return { x, y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    if (mode === 'slots6') {
+      const slots = parseLobbyPlayerSpawnsFromMapPlay(md);
+      const pick = slots[j];
+      if (pick && spawnTileWalkablePlay(md, pick.x, pick.y)) return { x: pick.x, y: pick.y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    return pickRandomSpawnFromMapPlay(md);
+  }
+
+  const GAUNTLET_PREVIEW_MAX = 6;
+  function gauntletSpawnYsPlay(md, playerCount) {
+    const h = md.height || 15;
+    const lo = 1;
+    const hi = Math.max(lo, h - 2);
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    if (hi <= lo) return Array.from({ length: n }, () => lo);
+    const ys = [];
+    for (let i = 0; i < n; i++) {
+      ys.push(Math.round(lo + (i * (hi - lo)) / Math.max(1, n - 1)));
+    }
+    return ys;
+  }
+  function collectGauntletSpawnSlotsFromSpawnAreaPlay(md) {
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return [];
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const slots = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) slots.push({ x, y });
+      }
+    }
+    slots.sort((a, b) => a.y - b.y || a.x - b.x);
+    return slots;
+  }
+  function collectGauntletSpawnSlotsPlay(md) {
+    const explicit = md.gauntletPlayerSpawns;
+    if (Array.isArray(explicit) && explicit.length > 0) {
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const slots = [];
+      for (const raw of explicit) {
+        if (slots.length >= GAUNTLET_PREVIEW_MAX) break;
+        const x = Math.floor(Number(raw && raw.x));
+        const y = Math.floor(Number(raw && raw.y));
+        if (!Number.isFinite(x) || !Number.isFinite(y) || x < 0 || x >= w || y < 0 || y >= h) continue;
+        if (!spawnTileWalkablePlay(md, x, y)) continue;
+        slots.push({ x, y });
+      }
+      if (slots.length > 0) return slots;
+    }
+    return collectGauntletSpawnSlotsFromSpawnAreaPlay(md);
+  }
+  function gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotXFallback) {
+    const w = md.width || 20;
+    if (spawnTileWalkablePlay(md, spawnColX, y)) return spawnColX;
+    if (slotXFallback != null && spawnTileWalkablePlay(md, slotXFallback, y)) return slotXFallback;
+    for (let d = 0; d < w; d++) {
+      if (spawnColX + d < w && spawnTileWalkablePlay(md, spawnColX + d, y)) return spawnColX + d;
+      if (spawnColX - d >= 0 && spawnTileWalkablePlay(md, spawnColX - d, y)) return spawnColX - d;
+    }
+    return Math.max(0, Math.min(w - 1, spawnColX));
+  }
+  function gauntletSpawnPositionsPlay(md, playerCount) {
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    const slots = collectGauntletSpawnSlotsPlay(md);
+    const fallbackYs = gauntletSpawnYsPlay(md, n);
+    const spawnColX = slots.length ? Math.min(...slots.map((s) => s.x)) : 1;
+    const out = [];
+    for (let i = 0; i < n; i++) {
+      const y = i < slots.length
+        ? slots[i].y
+        : (fallbackYs[i] != null ? fallbackYs[i] : fallbackYs[fallbackYs.length - 1]);
+      const slotX = i < slots.length ? slots[i].x : null;
+      const x = gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotX);
+      out.push({ x, y });
+    }
+    return out;
+  }
+  /**
+   * โหมดทดสอบพรมแดง: จัดตำแหน่งเกิดให้ตรง server (spawnArea หรือกระจาย y)
+   * @param {boolean} [onlyBots=false] ถ้า true = จัดแค่บอท (หลัง game-start; ไม่ทับ me/คนจริงจาก peersSnap)
+   */
+  function applyGauntletPreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'gauntlet') return;
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    const humanCount = 1 + realIds.length;
+    const total = Math.min(GAUNTLET_PREVIEW_MAX, humanCount + botIds.length);
+    const pos = gauntletSpawnPositionsPlay(mapData, total);
+    if (onlyBots) {
+      let idx = humanCount;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || idx >= pos.length) return;
+        o.x = pos[idx].x;
+        o.tx = pos[idx].x;
+        o.y = pos[idx].y;
+        o.ty = pos[idx].y;
+        idx++;
+      });
+      return;
+    }
+    let idx = 0;
+    if (idx < pos.length) {
+      me.x = pos[idx].x;
+      me.y = pos[idx].y;
+      me.tx = me.x;
+      me.ty = me.y;
+      idx++;
+    }
+    realIds.forEach((rid) => {
+      const o = others.get(rid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+    botIds.forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+  }
+
+  function isPreviewBotId(id) {
+    return typeof id === 'string' && id.indexOf(PREVIEW_BOT_PREFIX) === 0;
+  }
+
+  function countPlayHumans() {
+    let n = 1;
+    others.forEach((_, id) => { if (!isPreviewBotId(id)) n++; });
+    return n;
+  }
+
+  function rebalancePreviewBots() {
+    if (!playBotsEnabled() || !mapData) return;
+    if (isDetectiveMinigamePlay() && isQuizCarry()) {
+      /* บอทคดีสืบสวน — ใช้ stepQuizCarryPreviewBots */
+    }
+    const human = countPlayHumans();
+    const wantBots = Math.max(0, playBotTargetHeadcount() - human);
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      if (o.botTier == null) {
+        const tierRoll = Math.random();
+        o.botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      }
+      if (o.quizCannotTrue == null) o.quizCannotTrue = false;
+      if (o.quizCannotFalse == null) o.quizCannotFalse = false;
+      if (!Array.isArray(o.botPath)) o.botPath = [];
+      if (o.botAnswerWander == null) o.botAnswerWander = false;
+      if (o.gauntletJumpTicks == null) o.gauntletJumpTicks = 0;
+      if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+      if (o.gauntletScore == null) {
+        o.gauntletScore = (mapData && mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) ? 100 : 0;
+      }
+      if (o.gauntletEliminated == null) o.gauntletEliminated = false;
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+        o.botWanderDx = wd[0];
+        o.botWanderDy = wd[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') {
+        o.botWanderNextTurn = Date.now() + 400 + Math.floor(Math.random() * 900);
+      }
+    });
+    let botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length > wantBots) {
+      const drop = botIds.pop();
+      if (drop) others.delete(drop);
+    }
+    botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length < wantBots) {
+      const id = PREVIEW_BOT_PREFIX + (++previewBotSeq);
+      const joinIdx = countPlayHumans() + botIds.length;
+      const sp = pickSpawnForJoinPlay(mapData, joinIdx);
+      const jx = (Math.random() - 0.5) * 0.4;
+      const jy = (Math.random() - 0.5) * 0.4;
+      let x = sp.x + 0.5 + jx;
+      let y = sp.y + 0.5 + jy;
+      if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+        const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(x, y);
+        x = pathSnap.x;
+        y = pathSnap.y;
+      }
+      const tierRoll = Math.random();
+      const botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+      const crownStart = mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay();
+        others.set(id, {
+        x, y, tx: x, ty: y,
+        direction: ['down', 'up', 'left', 'right'][Math.floor(Math.random() * 4)],
+        nickname: 'บอท',
+        characterId: getPlayCharacterId(),
+        playTint: playTintFromPeerId(id),
+        botTier,
+        gauntletJumpTicks: 0,
+        gauntletJumpVis: 0,
+        gauntletScore: crownStart ? 100 : 0,
+        gauntletEliminated: false,
+        quizCannotTrue: false,
+        quizCannotFalse: false,
+        quizCarryHeld: null,
+        botPath: [],
+        botAnswerWander: false,
+        botWanderDx: wd[0],
+        botWanderDy: wd[1],
+        botWanderNextTurn: Date.now() + 400 + Math.floor(Math.random() * 1000),
+        jumpSurviveEliminated: false,
+        spaceShooterScore: 0,
+        balloonBossScore: 0,
+        balloonBossBalloons: 5,
+        balloonBossEliminated: false,
+        botQuizCarryPathfindAfter: performance.now() + previewBotSeq * 75 + Math.floor(Math.random() * 160),
+      });
+      botIds.push(id);
+    }
+    let k = 0;
+    [...others.keys()].filter(isPreviewBotId).sort().forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      const tag = o.botTier === 'sharp' ? '(ฉลาด)' : o.botTier === 'weak' ? '(พลาดบ่อย)' : '(กลาง)';
+      o.nickname = 'บอท ' + (++k) + ' ' + tag;
+    });
+    if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+      [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+        const o = others.get(bid);
+        if (!o) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      const t0 = performance.now();
+      [...others.keys()].filter(isPreviewBotId).forEach((bid, idx) => {
+        const o = others.get(bid);
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = t0 + idx * 90 + Math.floor(Math.random() * 140);
+      });
+    }
+    if (mapData.gameType === 'gauntlet') {
+      applyGauntletPreviewSpawnLayout(false);
+      emitGauntletPreviewRowsToServer();
+    }
+    if (mapData.gameType === 'stack') {
+      applyStackPreviewSpawnLayout();
+      rebuildStackPreviewTurnOrder();
+    }
+    if (mapData.gameType === 'jump_survive') {
+      applyJumpSurvivePreviewSpawnLayout(false);
+    }
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (quizCarryPregameActive && mapData && mapData.gameType === 'quiz_carry') updateQuizCarryPregameHud();
+  }
+
+  function pickRandomWalkableCellInAnswerGrid(grid, o) {
+    if (!grid || !mapData) return null;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] !== 1) continue;
+        if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, NaN, NaN, o)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  /** ช่วงตอบ: บอทสุ่มเดินไปโซนถูก/ผิด/เดินมั่ว ตามระดับ (ฉลาด/กลาง/พลาดบ่อย) */
+  function previewBotsPrepareAnswerRound() {
+    if (!previewFillBots || !mapData || !isQuiz() || !previewQuizCurrent) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+      const tier = o.botTier || 'avg';
+      let pCorrect = 0.52;
+      if (tier === 'sharp') pCorrect = 0.84;
+      else if (tier === 'weak') pCorrect = 0.22;
+      if (Math.random() < 0.14) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const wantsCorrect = Math.random() < pCorrect;
+      const targetTrue = wantsCorrect ? correctTrue : !correctTrue;
+      const zoneGrid = targetTrue ? qt : qf;
+      const dest = pickRandomWalkableCellInAnswerGrid(zoneGrid, o);
+      if (!dest) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+      if (!path || path.length <= 1) {
+        o.botAnswerWander = true;
+        return;
+      }
+      o.botPath = path.slice(1);
+    });
+  }
+
+  /** คัดลอกตรรกะจาก server — ดีดออกนอกโซนจริง/เท็จ (โหมดทดสอบ preview บน play.html) */
+  function findNearestOutsideQuizAnswerZonesPlay(md, sx, sy) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const tGrid = md.quizTrueArea || [];
+    const fGrid = md.quizFalseArea || [];
+    const inAnswer = (x, y) => quizCellOnPlay(tGrid, x, y) || quizCellOnPlay(fGrid, x, y);
+    const walkable = (x, y) => {
+      if (x < 0 || x >= w || y < 0 || y >= h) return false;
+      const row = md.objects && md.objects[y];
+      return row && row[x] !== 1;
+    };
+    const fx = Math.floor(Number(sx));
+    const fy = Math.floor(Number(sy));
+    if (!walkable(fx, fy)) {
+      const sp = md.spawn || { x: 1, y: 1 };
+      return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+    }
+    if (!inAnswer(fx, fy)) return { x: sx, y: sy };
+    const q = [[fx, fy]];
+    const seen = new Set([`${fx},${fy}`]);
+    const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+    while (q.length) {
+      const [cx, cy] = q.shift();
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = cx + dirs[di][0];
+        const ny = cy + dirs[di][1];
+        const k = `${nx},${ny}`;
+        if (seen.has(k)) continue;
+        if (!walkable(nx, ny)) continue;
+        seen.add(k);
+        if (!inAnswer(nx, ny)) {
+          return { x: nx + 0.5, y: ny + 0.5 };
+        }
+        q.push([nx, ny]);
+      }
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+  }
+
+  function quizResolveChoiceFromStanding(ox, oy, correctTrue) {
+    const tx = Math.floor(ox);
+    const ty = Math.floor(oy);
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    const inT = quizCellOnPlay(qt, tx, ty);
+    const inF = quizCellOnPlay(qf, tx, ty);
+    let choice = null;
+    if (inT && !inF) choice = true;
+    else if (inF && !inT) choice = false;
+    else if (inT && inF) choice = true;
+    const right = choice !== null && choice === correctTrue;
+    return { choice, right };
+  }
+
+  /** เฉลยรอบทดสอบบนเครื่อง — ให้พฤติกรรมใกล้เคียง server (ผิด = ล็อกโซน + ดีดออก) */
+  function resolvePreviewQuizRound() {
+    if (!previewMode || !mapData || !isQuiz() || !previewQuizCurrent || myId == null) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const results = [];
+    const mine = quizResolveChoiceFromStanding(me.x, me.y, correctTrue);
+    let right = mine.right;
+    let choice = mine.choice;
+    if (mine.right) {
+      playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+    } else {
+      playQuizPlayerLocal.cannotTrue = true;
+      playQuizPlayerLocal.cannotFalse = true;
+      const sp = pickRandomSpawnFromMapPlay(mapData);
+      const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+      me.x = pos.x;
+      me.y = pos.y;
+      socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+    }
+    results.push({
+      id: myId,
+      right,
+      choice,
+      score: playLiveQuizScores[myId] != null ? playLiveQuizScores[myId] : 0,
+    });
+    if (previewFillBots) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const br = quizResolveChoiceFromStanding(o.x, o.y, correctTrue);
+        o.botPath = [];
+        o.botAnswerWander = false;
+        if (br.right) {
+          playLiveQuizScores[id] = (playLiveQuizScores[id] || 0) + 1;
+        } else {
+          o.quizCannotTrue = true;
+          o.quizCannotFalse = true;
+          const sp = pickRandomSpawnFromMapPlay(mapData);
+          const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+          o.x = pos.x + (Math.random() - 0.5) * 0.35;
+          o.y = pos.y + (Math.random() - 0.5) * 0.35;
+        }
+        results.push({
+          id,
+          right: br.right,
+          choice: br.choice,
+          score: playLiveQuizScores[id] != null ? playLiveQuizScores[id] : 0,
+        });
+      });
+    }
+    const r = { results, scores: { ...playLiveQuizScores } };
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    showPlayQuizFeedback(r);
+  }
+
+  function advancePreviewQuizIfDue() {
+    if (!previewMode || !isQuiz() || !playQuizPhaseEndsAt || Date.now() < playQuizPhaseEndsAt) return;
+    const pool = previewQuizPool;
+    if (!pool || !pool.length) return;
+    if (previewQuizStep === 'read') {
+      applyPreviewAnswerPhase();
+      return;
+    }
+    if (previewQuizStep === 'answer') {
+      resolvePreviewQuizRound();
+      applyPreviewBetweenPhase();
+      return;
+    }
+    if (previewQuizStep === 'between') {
+      const q = pickRandomQuizFromPool(pool);
+      if (q) applyPreviewReadPhase(q, pool.length);
+    }
+  }
+
+  async function loadPreviewQuizAndStart() {
+    resetPreviewBotsQuizState();
+    let settings = null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) settings = await r.json();
+    } catch (e) { /* use map fallback */ }
+    let pool = [];
+    if (settings && Array.isArray(settings.questions) && settings.questions.length) {
+      pool = settings.questions
+        .filter((q) => q && String(q.text || '').trim())
+        .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+    }
+    if (!pool.length && mapData) pool = buildQuizPoolFromMap(mapData);
+    previewQuizPool = pool;
+    const dRead = 10000;
+    const dAns = 5000;
+    const dBet = 3500;
+    previewQuizTiming = {
+      readMs: clampPreviewMs(settings && settings.readMs, dRead, 1000, 300000),
+      answerMs: clampPreviewMs(settings && settings.answerMs, dAns, 1000, 300000),
+      betweenMs: clampPreviewMs(settings && settings.betweenMs, dBet, 0, 300000),
+    };
+    previewQuizCurrent = null;
+    if (!pool.length) {
+      playQuizPhaseLocal = 'read';
+      previewQuizStep = 'read';
+      playQuizText = 'ยังไม่มีคำถามในชุด — ตั้งคำถามใน Admin → คำถามเกม หรือในแมป (quizQuestions)';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] ไม่มีคำถามในระบบ';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      const leg = document.getElementById('quiz-play-legend');
+      if (leg) leg.textContent = 'โซนสีบนแผนที่ยังใช้ดูเลย์เอาต์ได้ตามปกติ';
+      initPlayLiveQuizScoresZeros();
+      startPlayQuizTimer();
+      return;
+    }
+    const q = pickRandomQuizFromPool(pool);
+    if (q) applyPreviewReadPhase(q, pool.length);
+    initPlayLiveQuizScoresZeros();
+    startPlayQuizTimer();
+  }
+
+  function startPlayQuizTimer() {
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(() => {
+      updatePlayQuizTimerDisplay();
+      advancePreviewQuizIfDue();
+    }, 200);
+    updatePlayQuizTimerDisplay();
+  }
+
+  function teardownPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    const mapQText = document.getElementById('quiz-map-question-text');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, mapQText);
+    }
+    playQuizPhaseLocal = null;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    previewQuizPool = [];
+    previewQuizCurrent = null;
+    previewQuizStep = 'read';
+    playLiveQuizScores = {};
+    playPath = [];
+    hidePlayQuizHud();
+    quizCarryJoinSettingsSnap = null;
+    quizCarryMapPanelTheme = null;
+    quizCarryChoicePlaqueThemes = null;
+    resetQuizCarryPlayState();
+    resetQuizBattlePlayState();
+    const grabBtnTeardown = document.getElementById('quiz-carry-grab-btn');
+    if (grabBtnTeardown) {
+      grabBtnTeardown.classList.add('is-hidden');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--active');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--place');
+      grabBtnTeardown.style.pointerEvents = '';
+      const im = grabBtnTeardown.querySelector('img');
+      if (im) im.src = '/Game/img/quiz-carry/btn-grab.png';
+    }
+  }
+
+  function setupPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    const leg = document.getElementById('quiz-play-legend');
+    if (previewMode) {
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] กำลังโหลดคำถาม…';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'ดึงชุดคำถามจาก /api/quiz-settings (หรือจากแมป)…';
+      if (leg) leg.textContent = '';
+      loadPreviewQuizAndStart();
+    } else {
+      playQuizPhaseLocal = null;
+      playQuizText = 'รอคำถามจากโฮสต์…';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'แมพตอบคำถาม';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'เข้าร่วมห้องแล้ว — เมื่อโฮสต์เริ่มเกม ข้อความและเวลาจะอัปเดตที่นี่ (เล่นจริงแนะนำผ่าน room-lobby)';
+      if (leg) leg.textContent = 'โซนสีบนแผนที่คือจุดตอบเหมือนใน Lobby';
+      const tEl = document.getElementById('quiz-game-timer');
+      if (tEl) tEl.textContent = '';
+    }
+  }
+
+  function isFrogger() { return mapData && mapData.gameType === 'frogger'; }
+  function isGauntlet() { return mapData && mapData.gameType === 'gauntlet'; }
+  function isGauntletFaceRightMapMno9kb07() {
+    return !!(isGauntlet() && playSessionMapId === GAUNTLET_FACE_RIGHT_MAP_ID);
+  }
+  /** Crown heist rules + UI (เดียวกับหันขวา — ฉาก mno9kb07) */
+  function isGauntletCrownHeistMapPlay() {
+    return isGauntletFaceRightMapMno9kb07();
+  }
+  let gauntletCrownHowtoVisible = false;
+  function isGauntletCrownPregameBlockingPlay() {
+    if (!isGauntletCrownHeistMapPlay()) return false;
+    if (gauntletCrownRunHeldRemote) return true;
+    if (gauntletCrownPregamePhase != null && gauntletCrownPregamePhase !== 'live') return true;
+    return false;
+  }
+  function isStack() { return mapData && mapData.gameType === 'stack'; }
+  function isJumpSurvive() { return mapData && mapData.gameType === 'jump_survive'; }
+
+  function currentPlayMapId() {
+    const q = (playSessionMapId || '').trim();
+    if (q) return q;
+    if (mapData && mapData.id != null && String(mapData.id).trim() !== '') return String(mapData.id).trim();
+    return (playMapIdFromQuery || '').trim();
+  }
+
+  function isJumpSurviveMissionUiMapPlay() {
+    return isJumpSurvive() && currentPlayMapId() === JUMP_SURVIVE_MISSION_MAP_ID;
+  }
+
+  function isJumpSurviveMissionPregameBlockingPlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return false;
+    return jumpSurviveMissionPhase != null && jumpSurviveMissionPhase !== 'live' && jumpSurviveMissionPhase !== 'ended';
+  }
+
+  function jumperAssetUrl(file) {
+    return BASE + '/img/Jumper/' + file;
+  }
+
+  function hideConflictingOverlaysForJumpSurviveMission() {
+    hideConflictingOverlaysForGauntletCrown();
+  }
+
+  function jumpSurviveTimeLimitSecForMission() {
+    const m = Number(mapData && mapData.jumpSurviveTimeSec);
+    if (Number.isFinite(m) && m > 0 && m < 7200) return Math.floor(m);
+    const j = Number(playJumpSurviveMissionTimeSec);
+    if (Number.isFinite(j) && j > 0 && j < 7200) return Math.floor(j);
+    return 60;
+  }
+
+  function jumpSurviveRemainingSecMission() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveSessionStartMs <= 0) return null;
+    const lim = jumpSurviveTimeLimitSecForMission();
+    if (!(lim > 0)) return null;
+    const elapsed = (performance.now() - jumpSurviveSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function applyJumpSurviveJumperPanelImages() {
+    const howtoBg = document.querySelector('#gauntlet-crown-howto-overlay .gch-bg');
+    if (howtoBg) {
+      howtoBg.src = jumperAssetUrl('popup-Howto.png');
+      howtoBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-Howto.png';
+      };
+    }
+    const resBg = document.querySelector('#gauntlet-crown-mission-overlay .gcm-bg');
+    if (resBg) {
+      resBg.src = jumperAssetUrl('popup-result.png');
+      resBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-result.png';
+      };
+    }
+  }
+
+  function showJumpSurviveMissionHowtoOverlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    hideConflictingOverlaysForJumpSurviveMission();
+    applyJumpSurviveJumperPanelImages();
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    jumpSurviveMissionPhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.textContent = '';
+      st.classList.remove('gch-status--jumper');
+      st.classList.add('is-hidden');
+    }
+    const btn = document.getElementById('btn-gch-ready');
+    if (btn) {
+      const humans = quizCarryPregameHumanIds();
+      const soleHuman = humans.length === 1;
+      const canGo = soleHuman || isMePlayHost();
+      btn.classList.remove('is-start-phase');
+      btn.classList.toggle('is-read-only', !canGo);
+      btn.disabled = !canGo;
+      btn.title = canGo ? 'READY — เริ่มนับถอยหลัง' : 'รอโฮสต์ · Wait for host';
+      btn.setAttribute('aria-pressed', 'false');
+    }
+  }
+
+  function beginJumpSurviveMissionCountdownThenRun() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    jumpSurviveMissionPhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.classList.add('is-hidden');
+      st.classList.remove('gch-status--jumper');
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = function () {
+      if (cd) cd.classList.add('is-hidden');
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      jumpSurviveMissionPhase = 'live';
+      jumpSurviveGameEnded = false;
+      jumpSurviveEliminated = false;
+      jumpSurviveInitRuntime();
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = function () {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        jumperMissionCountdownTimer = setTimeout(step, 1000);
+      } else {
+        jumperMissionCountdownTimer = null;
+        runFinish();
+      }
+    };
+    jumperMissionCountdownTimer = setTimeout(step, 1000);
+  }
+
+  /** Jumper ภารกิจ mnptfts2: เกรดจากจำนวนผู้รอด — 6=A … 3=D; น้อยกว่า 2 = F; พอดี 2 คน = E */
+  function jumpSurviveGradeFromSurvivorCount(survivors) {
+    const s = Math.max(0, Math.floor(Number(survivors) || 0));
+    if (s >= 6) return 'A';
+    if (s === 5) return 'B';
+    if (s === 4) return 'C';
+    if (s === 3) return 'D';
+    if (s === 2) return 'E';
+    return 'F';
+  }
+
+  function jumpSurviveRollRewardCardForGrade(grade) {
+    if (grade === 'F') return null;
+    const r = Math.random();
+    if (grade === 'A' || grade === 'B') {
+      if (r < 0.35) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.7) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C' || grade === 'D') {
+      if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'E') {
+      if (r < 0.12) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+    if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  function jumpSurviveMissionTotalParticipants() {
+    let n = myId != null ? 1 : 0;
+    if (others && typeof others.size === 'number') n += others.size;
+    return n;
+  }
+
+  function jumpSurviveMissionCountAlive() {
+    let n = 0;
+    if (myId != null && !jumpSurviveEliminated) n++;
+    if (others && typeof others.forEach === 'function') {
+      others.forEach(function (o) {
+        if (o && !o.jumpSurviveEliminated) n++;
+      });
+    }
+    return n;
+  }
+
+  /** จบทันทีเมื่อไม่มีผู้รอด หรือเหลือคนเดียว (หลายคนในรอบ) — โหมด solo 1 คนยังเล่นจนหมดเวลา */
+  function jumpSurviveMissionMaybeEarlyFinish() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+    const total = jumpSurviveMissionTotalParticipants();
+    const alive = jumpSurviveMissionCountAlive();
+    if (alive === 0) {
+      endJumpSurviveMissionRound();
+      return;
+    }
+    if (total >= 2 && alive === 1) {
+      endJumpSurviveMissionRound();
+    }
+  }
+
+  function jumpSurviveBuildMissionPayload() {
+    const rows = [];
+    const pushEnt = function (id, nickname, characterId, eliminated) {
+      const alive = !eliminated;
+      const baseScore = alive ? 100 : 0;
+      rows.push({
+        id: id,
+        nickname: (nickname && String(nickname).trim()) ? String(nickname).trim() : String(id),
+        characterId: characterId ?? null,
+        baseScore: baseScore,
+        eliminated: !!eliminated,
+        rankBonus: 0,
+        finalScore: baseScore,
+      });
+    };
+    if (myId != null) {
+      pushEnt(myId, (me.nickname || nick || 'คุณ').trim() || 'คุณ', me.characterId || getPlayCharacterId(), jumpSurviveEliminated);
+    }
+    others.forEach(function (o, id) {
+      if (!o) return;
+      pushEnt(id, o.nickname, o.characterId, !!o.jumpSurviveEliminated);
+    });
+    rows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < rows.length; si++) {
+      if (rows[si] && !rows[si].eliminated) survivorCount++;
+    }
+    const participantCount = rows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = rows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: row.baseScore,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const rewardCard = jumpSurviveRollRewardCardForGrade(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function jumpSurviveMergePreviewBotsMission(mission) {
+    if (!mission || mission.uiSkin !== 'jumper' || !previewFillBots || !others || typeof others.forEach !== 'function') return mission;
+    const seen = new Set();
+    (mission.ranked || []).forEach(function (r) {
+      if (r && r.id != null) seen.add(String(r.id));
+    });
+    const baseRows = (mission.ranked || []).map(function (r) {
+      return {
+        id: r.id,
+        nickname: r.nickname,
+        characterId: r.characterId,
+        baseScore: Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+        rankBonus: 0,
+      };
+    });
+    others.forEach(function (o, id) {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.jumpSurviveEliminated ? 0 : 100,
+        eliminated: !!o.jumpSurviveEliminated,
+        rankBonus: 0,
+      });
+    });
+    baseRows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < baseRows.length; si++) {
+      if (baseRows[si] && !baseRows[si].eliminated) survivorCount++;
+    }
+    const participantCount = baseRows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      const bs = Math.max(0, Number(row.baseScore) || 0);
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: bs,
+        eliminated: !!row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: bs,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: jumpSurviveRollRewardCardForGrade(grade),
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function endJumpSurviveMissionRound() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveGameEnded) return;
+    jumpSurviveGameEnded = true;
+    jumpSurviveMissionPhase = 'ended';
+    applyJumpSurviveJumperPanelImages();
+    const mission = jumpSurviveBuildMissionPayload();
+    showGauntletCrownMissionOverlay(mission);
+  }
+  function isSpaceShooter() { return mapData && mapData.gameType === 'space_shooter'; }
+  function isBalloonBoss() { return mapData && mapData.gameType === 'balloon_boss'; }
+  function isQuizCarry() { return mapData && mapData.gameType === 'quiz_carry'; }
+  function isQuizBattle() { return mapData && mapData.gameType === 'quiz_battle'; }
+
+  function quizCarryNeonColorForChoice(choiceIndex) {
+    const i = Math.max(0, choiceIndex | 0);
+    const h = (i * 47 + 100) % 360;
+    return 'hsl(' + h + ', 72%, 62%)';
+  }
+
+  function quizCarryMinimapOptionFillCss(ov) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice((Number(ov) | 0) - 1);
+    if (th.borderMode === 'fixed' && th.fixedBorder) {
+      const m = /^rgba?\(\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\s*(?:,\s*([0-9.]+)\s*)?\)$/i.exec(String(th.fixedBorder).trim());
+      if (m) {
+        const a0 = m[4] != null && m[4] !== '' ? Number(m[4]) : 1;
+        const aa = (Number.isFinite(a0) ? Math.max(0, Math.min(1, a0)) : 1) * 0.32;
+        const t = Math.round(aa * 1000) / 1000;
+        return 'rgba(' + m[1] + ',' + m[2] + ',' + m[3] + ',' + t + ')';
+      }
+    }
+    const i = Math.max(0, ov - 1);
+    const h = (i * 47 + 100) % 360;
+    return 'hsla(' + h + ', 58%, 52%, 0.32)';
+  }
+
+  function normalizeQuizCarryQuestionFromAny(q) {
+    if (!q) return null;
+    let text = String(q.text || q.question || q.prompt || q.title || '').trim();
+    if (Array.isArray(q.choices) && q.choices.length >= 2) {
+      const choices = q.choices.map((c) => String(c));
+      let ci = Number(q.correctIndex);
+      if (!Number.isFinite(ci) || ci < 0 || ci >= choices.length) ci = 0;
+      if (!text) text = 'เลือกคำตอบที่ถูกต้อง — หยิบตัวเลือกไปวางโซนส่งคำตอบ';
+      let chSlot = Number(q.countdownHighlightSlot);
+      if (!Number.isFinite(chSlot) || chSlot < 1 || chSlot > 16) chSlot = null;
+      else chSlot = Math.floor(chSlot);
+      let choiceImageUrls = null;
+      if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+        const urls = choices.map((_, idx) => sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[idx]));
+        if (urls.some((u) => u)) choiceImageUrls = urls;
+      }
+      return { text, choices, correctIndex: ci, countdownHighlightSlot: chSlot, choiceImageUrls };
+    }
+    if (!text) return null;
+    const t = !!q.answerTrue;
+    return { text, choices: ['จริง', 'เท็จ'], correctIndex: t ? 0 : 1, countdownHighlightSlot: null };
+  }
+
+  function buildQuizCarryPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    const out = [];
+    for (let i = 0; i < md.quizQuestions.length; i++) {
+      const n = normalizeQuizCarryQuestionFromAny(md.quizQuestions[i]);
+      if (n) out.push(n);
+    }
+    return out;
+  }
+
+  function getQuizCarryHubTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    const grid = md.quizCarryHubArea;
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (row[xx] === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  /** จุดกลางโซนตัวเลือกหยิบมาวาง (ค่า grid 1..N = ลำดับ choices) เพื่อวาดข้อความบนแผนที่ */
+  function getQuizCarryOptionClusterBounds(md, slot1toN) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let n = 0, sumX = 0, sumY = 0;
+    for (let yy = 0; yy < g.length; yy++) {
+      const row = g[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === slot1toN) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+          sumX += xx + 0.5;
+          sumY += yy + 0.5;
+          n++;
+        }
+      }
+    }
+    if (!n || minX === Infinity) return null;
+    return {
+      minX, minY, maxX, maxY,
+      cx: sumX / n,
+      cy: sumY / n,
+    };
+  }
+
+  function canvasWordWrapLines(ctx, text, maxWidth) {
+    const raw = String(text || '').trim();
+    if (!raw) return [];
+    const words = raw.split(/\s+/);
+    const lines = [];
+    let cur = words[0];
+    for (let i = 1; i < words.length; i++) {
+      const w = words[i];
+      const test = cur + ' ' + w;
+      if (ctx.measureText(test).width <= maxWidth) cur = test;
+      else {
+        lines.push(cur);
+        cur = w;
+      }
+    }
+    lines.push(cur);
+    return lines;
+  }
+
+  function quizCarryOptionHeldByAnyone(optionIdx) {
+    if (optionIdx == null || optionIdx < 0) return false;
+    if (me.quizCarryHeld === optionIdx) return true;
+    for (const o of others.values()) {
+      if (o && o.quizCarryHeld === optionIdx) return true;
+    }
+    return false;
+  }
+
+  /** สไปรต์ทับช่องโซนกลาง (ม่วง) อย่างน้อย 1 ช่อง */
+  function spriteOverlapsQuizCarryHubArea(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !sp) return false;
+    const hub = md.quizCarryHubArea;
+    if (!hub || !hub.length) return false;
+    const mw = md.width || 20, mh = md.height || 15;
+    const x0 = sp.x | 0, y0 = sp.y | 0, ww = sp.w | 0, hh = sp.h | 0;
+    for (let yy = y0; yy < y0 + hh; yy++) {
+      if (yy < 0 || yy >= mh) continue;
+      const row = hub[yy];
+      if (!row) continue;
+      for (let xx = x0; xx < x0 + ww; xx++) {
+        if (xx < 0 || xx >= mw) continue;
+        if (row[xx] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** ตัวเลือกหนึ่งข้อ — มีคนถือป้ายอยู่ได้แค่คนเดียว (หยิบซ้ำไม่ได้) */
+  function pickQuizCarryTargetOptionIndexAvoidingTaken(preferredIdx) {
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1) return null;
+    let p = preferredIdx | 0;
+    if (p < 0 || p >= n) p = 0;
+    if (!quizCarryOptionHeldByAnyone(p)) return p;
+    const avail = [];
+    for (let i = 0; i < n; i++) {
+      if (!quizCarryOptionHeldByAnyone(i)) avail.push(i);
+    }
+    if (!avail.length) return null;
+    return avail[Math.floor(Math.random() * avail.length)];
+  }
+
+  /**
+   * วาดป้ายมุมมน + ขอบเรือง + ข้อความ (รูปแบบเดียวกันทั้งแมปและติดตัว) — สีจาก carryChoicePlaqueThemes[choiceIndex] · รูปจาก plaqueExtra.imageUrl
+   * @param tether ถ้ามี วาดเส้นขาวจาก (x0,y0) ถึง (x1,y1) ก่อนป้าย
+   * @param plaqueExtra optional { imageUrl }
+   */
+  function drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, tether, plaqueExtra) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex);
+    const neon = th.borderMode === 'fixed' ? th.fixedBorder : quizCarryNeonColorForChoice(choiceIndex);
+    const fillCol = th.fillBg || 'rgba(12, 10, 20, 0.88)';
+    const textCol = th.textColor || '#f8f9ff';
+    const baseLw = Math.max(0.5, Math.min(8, Number(th.borderWidthPx)));
+    const imgUrl = plaqueExtra && plaqueExtra.imageUrl ? String(plaqueExtra.imageUrl) : '';
+    const elImg = plaqueExtra && plaqueExtra.imageElement;
+    const imgFromEl = (elImg && elImg.complete && elImg.naturalWidth > 0) ? elImg : null;
+    const img = !imgFromEl && imgUrl ? getQuizCarryChoiceImageCached(imgUrl) : null;
+    const drawPlaqueImg = imgFromEl || ((img && img.complete && img.naturalWidth > 0) ? img : null);
+    const rr = Math.max(6, Math.min(12, Math.min(w, h) * 0.2));
+    const simplePreviewPlaque = previewMode && editorEmbedReturn;
+    function pathBoard() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(signX, signY, w, h, rr);
+      else ctx.rect(signX, signY, w, h);
+    }
+    if (!simplePreviewPlaque) {
+      for (let g = 4; g >= 1; g--) {
+        ctx.strokeStyle = neon;
+        ctx.globalAlpha = 0.07 + g * 0.06;
+        ctx.lineWidth = baseLw + g * 3.2;
+        pathBoard();
+        ctx.stroke();
+      }
+    }
+    ctx.globalAlpha = 1;
+    ctx.fillStyle = fillCol;
+    pathBoard();
+    ctx.fill();
+    if (drawPlaqueImg) {
+      ctx.save();
+      pathBoard();
+      ctx.clip();
+      const padImg = Math.max(2, padY * 0.65);
+      const ix = signX + padImg;
+      const iy = signY + padImg;
+      const iw = Math.max(0, w - padImg * 2);
+      const ih = Math.max(0, h - padImg * 2);
+      if (iw > 0 && ih > 0) {
+        const nw = drawPlaqueImg.naturalWidth;
+        const nh = drawPlaqueImg.naturalHeight;
+        const ir = nw / nh;
+        let dw;
+        let dh;
+        if (iw / ih > ir) {
+          dh = ih;
+          dw = dh * ir;
+        } else {
+          dw = iw;
+          dh = dw / ir;
+        }
+        const dx = ix + (iw - dw) / 2;
+        const dy = iy + (ih - dh) / 2;
+        ctx.drawImage(drawPlaqueImg, 0, 0, nw, nh, dx, dy, dw, dh);
+      }
+      ctx.restore();
+    }
+    ctx.strokeStyle = neon;
+    if (simplePreviewPlaque) {
+      ctx.lineWidth = Math.max(1, baseLw * 0.85);
+      ctx.shadowBlur = 0;
+      pathBoard();
+      ctx.stroke();
+    } else {
+      ctx.lineWidth = baseLw;
+      ctx.shadowColor = neon;
+      ctx.shadowBlur = 14;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 8;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+    const attachX = signX + w / 2;
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'middle';
+    ctx.fillStyle = textCol;
+    const lh = lineH || 12;
+    if (!simplePreviewPlaque && lines && lines.length) {
+      ctx.shadowColor = 'rgba(0,0,0,0.55)';
+      ctx.shadowBlur = 3;
+    }
+    if (lines && lines.length) {
+      const n = lines.length;
+      const textBlockH = n * lh;
+      const y0 = signY + Math.max(padY, (h - textBlockH) / 2);
+      const firstLineCenterY = y0 + lh / 2;
+      for (let li = 0; li < n; li++) {
+        ctx.fillText(lines[li], attachX, firstLineCenterY + li * lh);
+      }
+    }
+    ctx.shadowBlur = 0;
+    if (tether && Number.isFinite(tether.x0) && Number.isFinite(tether.y0)) {
+      ctx.strokeStyle = 'rgba(255,255,255,0.95)';
+      ctx.lineWidth = 1.5;
+      ctx.lineCap = 'round';
+      ctx.lineJoin = 'round';
+      ctx.shadowBlur = 0;
+      ctx.beginPath();
+      ctx.moveTo(tether.x0, tether.y0);
+      ctx.lineTo(tether.x1, tether.y1);
+      ctx.stroke();
+    }
+  }
+
+  /**
+   * กล่องป้ายบนจอ (signX, signY, w, h) ให้ตรงกับ drawQuizCarryChoiceLabels สำหรับช่อง idx 0-based
+   */
+  function computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, idx0Based) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return null;
+    const q = quizCarryCurrent;
+    const choices = q.choices;
+    if (!choices || !choices.length || idx0Based < 0 || idx0Based >= choices.length) return null;
+    const i = idx0Based;
+    const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+    if (!b) return null;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const choiceText = String(choices[i] || '').trim();
+    const imgUrl = getQuizCarryPlaqueImageUrlForIndex(q, i);
+    const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+    const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+      : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+    if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) return null;
+    const tileSpanX = (b.maxX - b.minX + 1);
+    const tileSpanY = (b.maxY - b.minY + 1);
+    const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+    const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+    const wx = b.cx * tileSize;
+    const wy = b.cy * tileSize;
+    const [sx, sy] = worldToScreen(wx, wy);
+    ctx.save();
+    let signX;
+    let signY;
+    let w;
+    let h;
+    if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+      const minW = minPlaqueW;
+      const minH = minPlaqueH;
+      signX = sx - minW / 2;
+      signY = sy - minH / 2;
+      w = minW;
+      h = minH;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    const line = choiceText;
+    const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+    let maxW = Math.max(56, tileSpanX * ts - 14);
+    const lineH = fontPx * 1.2;
+    let textLines = canvasWordWrapLines(ctx, line, maxW);
+    if (!textLines.length) textLines = [line];
+    if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+      const fp2 = Math.max(9, fontPx * 0.85);
+      ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      const lh2 = fp2 * 1.2;
+      maxW = Math.max(48, maxW - 4);
+      textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (textLines.length * lh2 > tileSpanY * ts - 8) {
+        textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+      const padX = 10;
+      const padY = 8;
+      w = Math.ceil(maxLineW + padX * 2);
+      h = Math.ceil(textLines.length * lh2 + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      signX = sx - w / 2;
+      signY = sy - h / 2;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    for (let ti = 0; ti < textLines.length; ti++) {
+      let s = textLines[ti];
+      if (ctx.measureText(s).width <= maxW) continue;
+      while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+      textLines[ti] = s + '…';
+    }
+    let maxLineW = 0;
+    for (let ti = 0; ti < textLines.length; ti++) {
+      const lw = ctx.measureText(textLines[ti]).width;
+      if (lw > maxLineW) maxLineW = lw;
+    }
+    const padX = 10;
+    const padY = 8;
+    w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+    h = Math.ceil(textLines.length * lineH + padY * 2);
+    if (imgUrl || plaqueExtra.imageElement) {
+      w = Math.max(w, minPlaqueW);
+      h = Math.max(h, minPlaqueH);
+    }
+    signX = sx - w / 2;
+    signY = sy - h / 2;
+    ctx.restore();
+    return { signX, signY, w, h };
+  }
+
+  /**
+   * ขอบเรืองรอบช่องตัวเลือก (carryEmbedCountdownHighlight + carryEmbedCountdownHighlightColor)
+   * ขนาดกรอบเท่าป้ายบนแมป (เดียวกับ drawQuizCarryChoiceLabels) ไม่ใช่ทั้ง cluster กริด
+   */
+  function drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zoom, timeMs) {
+    if (!isQuizCarry() || !mapData) return;
+    if (mapData.carryEmbedCountdownHighlight === false) return;
+    const optIdx = getQuizCarryLocalGrabbableOptionIndex();
+    if (optIdx == null) return;
+    const pr = computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, optIdx);
+    if (!pr || pr.w < 4 || pr.h < 4) return;
+    const rx = pr.signX;
+    const ry = pr.signY;
+    const rw = pr.w;
+    const rh = pr.h;
+    const rr = Math.max(6, Math.min(16, Math.min(rw, rh) * 0.14));
+    const colRaw = mapData.carryEmbedCountdownHighlightColor;
+    const strokeBase = typeof colRaw === 'string' && /^#[0-9a-fA-F]{6}$/.test(colRaw.trim()) ? colRaw.trim() : '#ffb44a';
+    const pulse = 0.55 + 0.45 * Math.sin((timeMs || 0) / 180);
+    ctx.save();
+    function pathRr() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(rx, ry, rw, rh, rr);
+      else ctx.rect(rx, ry, rw, rh);
+    }
+    pathRr();
+    ctx.fillStyle = strokeBase;
+    ctx.globalAlpha = 0.12 * pulse;
+    ctx.fill();
+    for (let g = 6; g >= 1; g--) {
+      ctx.strokeStyle = strokeBase;
+      ctx.globalAlpha = (0.07 + g * 0.055) * pulse;
+      ctx.lineWidth = 2.5 + g * 4;
+      pathRr();
+      ctx.stroke();
+    }
+    ctx.globalAlpha = 0.98;
+    ctx.strokeStyle = strokeBase;
+    ctx.lineWidth = 4;
+    ctx.shadowColor = strokeBase;
+    ctx.shadowBlur = 22 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 12 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 0;
+    ctx.globalAlpha = 1;
+    ctx.restore();
+  }
+
+  function drawQuizCarryChoiceLabels(ctx, worldToScreen, zoom) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (!quizCarryOptionsPickableNow()) return;
+    const choices = quizCarryCurrent.choices;
+    if (!choices || !choices.length) return;
+    const maxSlots = choices.length;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    ctx.save();
+    for (let i = 0; i < Math.min(choices.length, maxSlots); i++) {
+      if (quizCarryOptionHeldByAnyone(i)) continue;
+      const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+      if (!b) continue;
+      const choiceText = String(choices[i] || '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, i);
+      const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+      const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+        : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+      if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) continue;
+      const tileSpanX = (b.maxX - b.minX + 1);
+      const tileSpanY = (b.maxY - b.minY + 1);
+      const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+      const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+      if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+        const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+        const lineH = fontPx * 1.2;
+        const padY = 8;
+        const minW = minPlaqueW;
+        const minH = minPlaqueH;
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        drawQuizCarryNeonPlaque(ctx, sx - minW / 2, sy - minH / 2, minW, minH, [], lineH, padY, i, null, plaqueExtra);
+        continue;
+      }
+      const line = choiceText;
+      const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+      ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      let maxW = Math.max(56, tileSpanX * ts - 14);
+      const lineH = fontPx * 1.2;
+      let textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (!textLines.length) textLines = [line];
+      if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+        const fp2 = Math.max(9, fontPx * 0.85);
+        ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+        const lh2 = fp2 * 1.2;
+        maxW = Math.max(48, maxW - 4);
+        textLines = canvasWordWrapLines(ctx, line, maxW);
+        if (textLines.length * lh2 > tileSpanY * ts - 8) {
+          textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+        }
+        for (let ti = 0; ti < textLines.length; ti++) {
+          let s = textLines[ti];
+          if (ctx.measureText(s).width <= maxW) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+          textLines[ti] = s + '…';
+        }
+        const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+        const padX = 10;
+        const padY = 8;
+        let w = Math.ceil(maxLineW + padX * 2);
+        let h = Math.ceil(textLines.length * lh2 + padY * 2);
+        if (imgUrl || plaqueExtra.imageElement) {
+          w = Math.max(w, minPlaqueW);
+          h = Math.max(h, minPlaqueH);
+        }
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        const signX = sx - w / 2;
+        const signY = sy - h / 2;
+        drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lh2, padY, i, null, plaqueExtra);
+        continue;
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      let maxLineW = 0;
+      for (let ti = 0; ti < textLines.length; ti++) {
+        const lw = ctx.measureText(textLines[ti]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const padX = 10;
+      const padY = 8;
+      let w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+      let h = Math.ceil(textLines.length * lineH + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      const wx = b.cx * tileSize;
+      const wy = b.cy * tileSize;
+      const [sx, sy] = worldToScreen(wx, wy);
+      const signX = sx - w / 2;
+      const signY = sy - h / 2;
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lineH, padY, i, null, plaqueExtra);
+    }
+    ctx.restore();
+  }
+
+  function quizCarryHubCellPlay(md, tx, ty) {
+    const g = md && md.quizCarryHubArea;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryInteractiveCellPlay(md, tx, ty) {
+    const g = md && md.interactive;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryMapHasAnswerInteractive(md) {
+    if (!md || !md.interactive || !md.interactive.length) return false;
+    const h = md.height || 15, w = md.width || 20;
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** @returns {number|null} index ใน choices จากช่องหมายเลข 1..N บนแมป */
+  function quizCarryOptionIndexAtPlay(md, tx, ty) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g[ty]) return null;
+    const v = g[ty][tx];
+    if (v < 1 || v > QUIZ_CARRY_MAX_OPTION_SLOTS) return null;
+    const idx = v - 1;
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1 || idx >= n) return null;
+    return idx;
+  }
+
+  /** ร่างตัวละครทับช่องโซนกลาง (ม่วง) — ใช้บล็อกการเดิน */
+  function quizCarryFootprintOverlapsHub(px, py) {
+    if (!mapData || !isQuizCarry()) return false;
+    const md = mapData;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  /** ยืนข้างนอกแต่ชิดโซนกลาง — ใช้ให้กด F ส่งคำตอบได้โดยไม่ต้องย่ำบนม่วง */
+  function quizCarryFootprintAdjacentToHub(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryHubCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtHub(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsHub(px, py) || quizCarryFootprintAdjacentToHub(md, px, py);
+  }
+
+  function quizCarryFootprintOverlapsInteractive(md, px, py) {
+    if (!md) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  function quizCarryFootprintAdjacentToInteractive(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryInteractiveCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtInteractiveZone(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsInteractive(md, px, py) || quizCarryFootprintAdjacentToInteractive(md, px, py);
+  }
+
+  /** ส่งคำตอบ: ถ้ามีโซน interactive (เขียว) ในแมป ใช้โซนนั้น — ไม่มี fallback ชิดโซนกลาง */
+  function quizCarryCanSubmitAnswerAt(md, px, py) {
+    if (!md) return false;
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      return quizCarryCanSubmitAtInteractiveZone(md, px, py);
+    }
+    return quizCarryCanSubmitAtHub(md, px, py);
+  }
+
+  /** ข้อความใน HUD / โซนคำถาม — ไม่รวมตัวเลือก (แสดงบนแผนที่ตามจุดสี) */
+  function formatQuizCarryQuestionHud(q) {
+    if (!q) return '';
+    return String(q.text || q.question || q.prompt || q.title || '').trim();
+  }
+
+  function quizCarryRestoreEmbedPhaseLabel() {
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl || !mapData) return;
+    phaseEl.textContent = quizCarryMapHasAnswerInteractive(mapData)
+      ? 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งที่โซน interactive (เขียว) — เล่นพร้อมกันได้'
+      : 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งเมื่อชิดโซนกลาง (ม่วงเป็นกำแพง) — เล่นพร้อมกันได้';
+  }
+
+  function isQuizCarryEmbedCountdownBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now());
+  }
+
+  function isQuizCarryEmbedLobbyBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryPregameActive);
+  }
+
+  function quizCarryPregameHumanIds() {
+    const ids = [];
+    if (myId != null && !isPreviewBotId(myId)) ids.push(String(myId));
+    others.forEach((_, id) => {
+      if (!isPreviewBotId(id)) ids.push(String(id));
+    });
+    return ids;
+  }
+
+  function quizCarryPregameBotCount() {
+    let n = 0;
+    others.forEach((_, id) => {
+      if (isPreviewBotId(id)) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (quizCarryLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameTotalPlayers() {
+    return quizCarryPregameHumanIds().length + quizCarryPregameBotCount();
+  }
+
+  function isMePlayHost() {
+    if (myId == null) return false;
+    if (playHostId == null) return true;
+    return String(playHostId) === String(myId);
+  }
+
+  function hideQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function showQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    updateQuizCarryPregameHud();
+  }
+
+  function quizCarrySyncGuestReadyIfNeeded() {
+    if (!quizCarryPregameActive || myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (quizCarryLobbyReadyMap[sid]) return;
+    quizCarryLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-ready', { ready: true });
+  }
+
+  function updateQuizCarryPregameHud() {
+    if (!quizCarryPregameActive) return;
+    const st = document.getElementById('quiz-carry-pregame-status');
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    const primaryImg = document.getElementById('quiz-carry-pregame-primary-img');
+    const num = quizCarryPregameReadyNumerator();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    if (st) {
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humans = quizCarryPregameHumanIds();
+    const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+    const meReady = !!(myId && quizCarryLobbyReadyMap[String(myId)]);
+    if (primaryImg) {
+      primaryImg.src = humansReady ? '/Game/img/quiz-carry/btn-start.png' : '/Game/img/quiz-carry/btn-ready.png';
+      primaryImg.alt = humansReady ? 'START' : 'READY';
+    }
+    if (primary) {
+      primary.classList.toggle('is-start-phase', humansReady);
+      primary.classList.toggle('is-read-only', !isMePlayHost());
+      primary.classList.toggle('is-pressed', isMePlayHost() && meReady && !humansReady);
+      primary.disabled = !isMePlayHost();
+      primary.setAttribute('aria-pressed', humansReady ? 'false' : (meReady ? 'true' : 'false'));
+      primary.title = isMePlayHost()
+        ? (humansReady ? 'START' : (meReady ? 'ยกเลิก READY' : 'READY'))
+        : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+    }
+  }
+
+  function beginQuizCarryEmbedPregame() {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    quizCarryPregameActive = true;
+    quizCarryLobbyReadyMap = {};
+    quizCarryPregameHumanIds().forEach((id) => { quizCarryLobbyReadyMap[id] = false; });
+    showQuizCarryPregameOverlay();
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-sync-request');
+    quizCarrySyncGuestReadyIfNeeded();
+    updateQuizCarryPregameHud();
+  }
+
+  function endQuizCarryEmbedPregameAndStart() {
+    if (!quizCarryPregameActive) return;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPickNextQuestion();
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+  }
+
+  function quizCarryOptionsPickableNow() {
+    if (!isQuizCarry() || !quizCarryCurrent) return true;
+    if (!quizCarryOptionRevealAt || quizCarryOptionRevealAt <= 0) return true;
+    return Date.now() >= quizCarryOptionRevealAt;
+  }
+
+  function quizCarryApplyPhaseTimersForCurrentQuestion() {
+    if (!quizCarryCurrent) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      return;
+    }
+    const readMs = Math.max(0, Math.floor(Number(quizCarryCarryTimingMs.carryReadMs)) || 0);
+    const ansMs = Math.max(1000, Math.floor(Number(quizCarryCarryTimingMs.carryAnswerMs)) || 5000);
+    const t0 = Date.now();
+    if (readMs <= 0) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = t0 + ansMs;
+    } else {
+      quizCarryOptionRevealAt = t0 + readMs;
+      quizCarryAnswerCloseAt = quizCarryOptionRevealAt + ansMs;
+    }
+  }
+
+  function updateQuizCarryCarryPhaseHud() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !quizCarryCurrent) return;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl) return;
+    const now = Date.now();
+    if (quizCarryOptionRevealAt > 0 && now < quizCarryOptionRevealAt) {
+      const remain = Math.max(0, Math.ceil((quizCarryOptionRevealAt - now) / 1000));
+      phaseEl.textContent = 'อ่านคำถาม — ตัวเลือกขึ้นใน ' + remain + ' วิ';
+      return;
+    }
+    if (quizCarryAnswerCloseAt > now) {
+      const remain = Math.max(0, Math.ceil((quizCarryAnswerCloseAt - now) / 1000));
+      phaseEl.textContent = 'หยิบ/ส่งคำตอบ — เหลือ ' + remain + ' วิ';
+      return;
+    }
+    quizCarryRestoreEmbedPhaseLabel();
+  }
+
+  function tickQuizCarryRoundTimers() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (quizCarryEmbedCountdownEndAt > Date.now()) return;
+    if (quizCarryEmbedPendingQuestion) return;
+    if (!quizCarryAnswerCloseAt || quizCarryAnswerCloseAt <= 0) return;
+    if (Date.now() < quizCarryAnswerCloseAt) return;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryOptionRevealAt = 0;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    quizCarryAfterRoundResolved();
+  }
+
+  /** นับ 3–2–1: ไม่โชว์ข้อความคำถามใน overlay — มีแค่เลข */
+  function hideQuizCarryEmbedCountdownQuestionChrome() {
+    const cq = document.getElementById('quiz-carry-embed-countdown-q');
+    const ck = document.getElementById('quiz-carry-embed-countdown-kicker');
+    if (cq) {
+      cq.textContent = '';
+      cq.style.display = 'none';
+    }
+    if (ck) ck.style.display = 'none';
+  }
+
+  function hideQuizCarryEmbedCountdownOverlay() {
+    resetQuizCarryEmbedCountdownLayoutDom();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+    hideQuizCarryEmbedCountdownQuestionChrome();
+  }
+
+  function tickQuizCarryEmbedCountdown() {
+    if (!previewMode || !editorEmbedReturn || !isQuizCarry()) return;
+    if (!quizCarryEmbedPendingQuestion || quizCarryEmbedCountdownEndAt <= 0) return;
+    const now = Date.now();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (now >= quizCarryEmbedCountdownEndAt) {
+      const pq = quizCarryEmbedPendingQuestion;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      if (!pq) return;
+      quizCarryCurrent = pq;
+      preloadQuizCarryChoiceImages(pq);
+      playQuizText = formatQuizCarryQuestionHud(pq);
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      quizCarryRestoreEmbedPhaseLabel();
+      others.forEach((o) => {
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      syncQuizCarryEmbedQuestionStrip();
+      quizCarryApplyPhaseTimersForCurrentQuestion();
+      return;
+    }
+    const elapsed = now - quizCarryEmbedCountdownStartAt;
+    const n = 3 - Math.min(2, Math.floor(elapsed / 1000));
+    if (numEl) numEl.textContent = String(Math.max(1, Math.min(3, n)));
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    syncQuizCarryEmbedCountdownLayout();
+    hideQuizCarryEmbedCountdownQuestionChrome();
+    syncQuizCarryEmbedQuestionStrip();
+  }
+
+  function quizCarryPickNextQuestion() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!quizCarryPool.length) {
+      quizCarryCurrent = null;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      playQuizText = 'ไม่มีคำถาม — ใส่ quizQuestions ในแมป (choices + correctIndex) หรือตั้งใน Admin';
+      return;
+    }
+    let q;
+    let guard = 0;
+    do {
+      q = quizCarryPool[Math.floor(Math.random() * quizCarryPool.length)];
+      guard++;
+    } while (guard < 12 && quizCarryPool.length > 1 && quizCarryCurrent && q && q.text === quizCarryCurrent.text);
+    if (previewMode && editorEmbedReturn) {
+      quizCarryEmbedPendingQuestion = q;
+      preloadQuizCarryChoiceImages(q);
+      quizCarryEmbedCountdownStartAt = Date.now();
+      quizCarryEmbedCountdownEndAt = quizCarryEmbedCountdownStartAt + 3000;
+      quizCarryCurrent = null;
+      playQuizText = '';
+      clearQuizMapQuestionCarryFeedback();
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      me.quizCarryHeld = null;
+      others.forEach((o) => {
+        if (!o) return;
+        o.quizCarryHeld = null;
+        o.botPath = [];
+        o.botPathStuckTicks = 0;
+        /* ต้องใช้ performance.now() ช่วงกับ stepQuizCarryPreviewBots — ห้ามใช้ Date.now() epoch ไม่งั้นบอทค้าง pathfind ตลอด */
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = '…';
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'รอเริ่มคำถาม — นับถอยหลัง 3 · 2 · 1';
+      tickQuizCarryEmbedCountdown();
+      syncQuizCarryEmbedQuestionStrip();
+      return;
+    }
+    quizCarryCurrent = q;
+    preloadQuizCarryChoiceImages(q);
+    playQuizText = formatQuizCarryQuestionHud(q);
+    clearQuizMapQuestionCarryFeedback();
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+    });
+    quizCarryApplyPhaseTimersForCurrentQuestion();
+  }
+
+  /** หลังจบข้อหนึ่งข้อ (ถูกหรือหมดเวลา): พรีวิวนับรอบจนครบ carrySessionLength แล้วจบเซสชัน */
+  function quizCarryAfterRoundResolved() {
+    if (!isQuizCarry()) return;
+    if (isDetectiveMinigamePlay()) {
+      finishDetectiveMinigameAndReturnLobby();
+      return;
+    }
+    if (!previewMode) {
+      quizCarryPickNextQuestion();
+      return;
+    }
+    quizCarryRoundsCompleted++;
+    const lim = quizCarrySessionLength;
+    if (lim > 0 && quizCarryRoundsCompleted >= lim) {
+      showQuizCarrySessionCompleteOverlay();
+      return;
+    }
+    quizCarryPickNextQuestion();
+  }
+
+  function playQuizCarryAvatarUrlForMission(characterId) {
+    if (!characterId) return '';
+    return BASE + '/img/characters/' + encodeURIComponent(String(characterId)) + '_down.png';
+  }
+
+  /** อวาตาร์สรุปภารกิจ / DOM — ใช้สี gen เดียวกับในเกม (เลเยอร์ + tint) */
+  function applyQuizCarryRankAvatarTint(imgEl, characterId, peerId) {
+    if (!imgEl || !characterId) return;
+    let attempts = 0;
+    const fallbackUrl = playQuizCarryAvatarUrlForMission(characterId);
+    const tick = () => {
+      attempts++;
+      const nowT = Date.now();
+      const rawImg = getCharacterFrame(characterId, 'down', nowT, false) || getCharacterImg(characterId, 'down');
+      if (!rawImg) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      if ((!rawImg.complete || !rawImg.naturalWidth) && attempts < 28) {
+        if (fallbackUrl) imgEl.src = fallbackUrl + '?p=' + String(attempts);
+        setTimeout(tick, 90);
+        return;
+      }
+      if (!rawImg.naturalWidth) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      const tint = playTintFromPeerId(peerId != null ? String(peerId) : String(characterId));
+      const out = getPlayTintedAvatarSource(rawImg, characterId, 'down', nowT, false, tint);
+      if (out && out.tagName === 'CANVAS' && out.width > 0) {
+        try {
+          imgEl.src = out.toDataURL('image/png');
+          return;
+        } catch (e) { /* ต่อไปลอง walk หรือ URL */ }
+      }
+      if (out && out.src && out !== rawImg) {
+        imgEl.src = out.src;
+        return;
+      }
+      if (attempts < 28 && playCharLayerDiscoveryPending(characterId)) {
+        setTimeout(tick, 120);
+        return;
+      }
+      imgEl.src = rawImg.src || fallbackUrl;
+    };
+    tick();
+  }
+
+  /** เกรดจากค่าเฉลี่ยคะแนนทีม (0–100 หลังปัด) — A 80–100, B 60–79, C 0–59 */
+  function quizCarryGradeFromTeamAverage(avgRounded) {
+    if (avgRounded >= 80) return 'A';
+    if (avgRounded >= 60) return 'B';
+    return 'C';
+  }
+
+  function quizCarryRollCardRewardForGrade(grade) {
+    const u = Math.random() * 100;
+    if (grade === 'A') {
+      if (u < 30) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 80) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (u < 20) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 50) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C') {
+      if (u < 20) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    return null;
+  }
+
+  function quizCarryBuildMissionRankList() {
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+        characterId: me.characterId || getPlayCharacterId(),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+        characterId: o.characterId || null,
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    return ranks.slice(0, 5);
+  }
+
+  function cancelEmbedPreviewLobbyReturnTimer() {
+    if (embedPreviewLobbyReturnTimer != null) {
+      clearTimeout(embedPreviewLobbyReturnTimer);
+      embedPreviewLobbyReturnTimer = null;
+    }
+  }
+
+  function cancelQuizCarryResultEndAfterTimeup() {
+    if (quizCarryResultEndTimer != null) {
+      clearTimeout(quizCarryResultEndTimer);
+      quizCarryResultEndTimer = null;
+    }
+    cancelEmbedPreviewLobbyReturnTimer();
+  }
+
+  /** หลังภาพ result-complete / gameover (editor embed + preview): รอ 5s แล้วไปล็อบบี้ห้องพรีวิว */
+  function scheduleEmbedPreviewReturnToLobbyAfterResultEnd() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    if (!(previewMode && editorEmbedReturn)) return;
+    embedPreviewLobbyReturnTimer = setTimeout(function () {
+      embedPreviewLobbyReturnTimer = null;
+      window.location.href = buildRoomLobbyReturnHref();
+    }, 5000);
+  }
+
+  /** มีผู้เล่นอย่างน้อยหนึ่งคนได้คะแนน > 0 (= ส่งคำตอบถูกที่ฮับอย่างน้อย 1 ครั้ง; คะแนนต่อข้อคงที่ QUIZ_CARRY_POINTS_PER_CORRECT) */
+  function quizCarryAnyPlayerHasCorrectAnswer() {
+    if (!playLiveQuizScores || typeof playLiveQuizScores !== 'object') return false;
+    const keys = Object.keys(playLiveQuizScores);
+    for (let i = 0; i < keys.length; i++) {
+      if (Math.max(0, Number(playLiveQuizScores[keys[i]]) || 0) > 0) return true;
+    }
+    return false;
+  }
+
+  function hideQuizCarryResultEndLayer() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  function showQuizCarryResultEndLayer(useComplete) {
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    const img = document.getElementById('quiz-carry-result-end-img');
+    if (!el || !img) return;
+    const fname = useComplete ? 'result-complete.png' : 'result-gameover.png';
+    img.src = BASE + '/img/quiz-carry/' + fname + '?v=' + String(Date.now());
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+  }
+
+  /** Embed editor: หลัง timeup บนโต๊ะ — รอ 5 วิ แล้วโชว์ result-complete / result-gameover (ใช้ร่วม quiz_carry + crown) */
+  function scheduleEmbedDeskResultAfterDelay(okResolver) {
+    cancelQuizCarryResultEndAfterTimeup();
+    hideQuizCarryResultEndLayer();
+    const resolve = typeof okResolver === 'function' ? okResolver : function () { return !!okResolver; };
+    quizCarryResultEndTimer = setTimeout(function () {
+      quizCarryResultEndTimer = null;
+      let anyOk = false;
+      try {
+        anyOk = !!resolve();
+      } catch (e) {
+        anyOk = false;
+      }
+      hideQuizCarryTimeupOnDeskLayer();
+      showQuizCarryResultEndLayer(anyOk);
+      scheduleEmbedPreviewReturnToLobbyAfterResultEnd();
+    }, 5000);
+  }
+
+  function hideQuizCarryTimeupOnDeskLayer() {
+    cancelQuizCarryResultEndAfterTimeup();
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const anchor = el.querySelector('.qc-timeup-desk-anchor') || el.querySelector('.qc-timeup-desk-inner');
+    if (anchor) {
+      anchor.style.left = '';
+      anchor.style.top = '';
+      anchor.style.width = '';
+      anchor.style.height = '';
+    }
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  /** หลังกดรับหลักฐาน (embed preview) — แสดง timeup กลางแคนวาส (Jumper mnptfts2 = img/Jumper/result-timeup.png) แยกจากป๊อปสรุปคะแนน
+   *  @param {function():boolean} [embedResultOkFn] — ถ้าไม่ส่ง = ใช้คะแนน quiz_carry (คนตอบถูก); ส่งเมื่อ crown เพื่อเลือก complete vs gameover */
+  function showQuizCarryTimeupOnDeskLayer(embedResultOkFn) {
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const img = document.getElementById('quiz-carry-timeup-txt-img');
+    if (img) {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+        };
+        img.src = jumperAssetUrl('result-timeup.png') + '?v=' + String(Date.now());
+      } else {
+        img.onerror = null;
+        img.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+      }
+    }
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+    try {
+      syncQuizCarryTimeupDeskLayerPosition();
+    } catch (e) { /* ignore */ }
+    if (previewMode && editorEmbedReturn) {
+      scheduleEmbedDeskResultAfterDelay(embedResultOkFn || quizCarryAnyPlayerHasCorrectAnswer);
+    }
+  }
+
+  function showQuizCarryMissionSummaryOverlay(opts) {
+    opts = opts || {};
+    const forceF = !!opts.forceGradeF;
+    const overlay = document.getElementById('quiz-carry-mission-overlay');
+    if (!overlay) return;
+    hideQuizCarryTimeupOnDeskLayer();
+    const ranks = quizCarryBuildMissionRankList();
+    const parts = ranks.map((r) => Math.max(0, Number(r.score) || 0));
+    const total = parts.reduce((a, b) => a + b, 0);
+    const n = ranks.length;
+    const avgForGrade = n ? Math.min(100, Math.max(0, Math.round(total / n))) : 0;
+    const grade = forceF ? 'F' : quizCarryGradeFromTeamAverage(avgForGrade);
+    const reward = grade === 'F' ? null : quizCarryRollCardRewardForGrade(grade);
+
+    const rowEl = document.getElementById('qc-mission-rank-row');
+    const totalEl = document.getElementById('qc-mission-total-line');
+    const gradeEl = document.getElementById('qc-mission-grade');
+    const cardTextEl = document.getElementById('qc-mission-card-text');
+    const checkEl = document.getElementById('qc-mission-check');
+    const successTxt = document.getElementById('qc-mission-success-txt');
+    const rankTagLabels = ['[1st]', '[2nd]', '[3rd]', '[4th]', '[5th]'];
+    if (rowEl) {
+      rowEl.innerHTML = '';
+      ranks.forEach((r, idx) => {
+        const rank = idx + 1;
+        const cell = document.createElement('div');
+        cell.className = 'qc-mission-rank-cell';
+        const tag = document.createElement('div');
+        tag.className = 'qc-mission-rank-tag';
+        tag.textContent = rankTagLabels[rank - 1] || ('[' + rank + ']');
+        const frame = document.createElement('div');
+        frame.className = 'qc-mission-rank-frame';
+        const img = document.createElement('img');
+        img.className = 'qc-mission-rank-avatar';
+        img.alt = '';
+        applyQuizCarryRankAvatarTint(img, r.characterId, r.id);
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = 'data:image/svg+xml,' + encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="64" height="64"><rect fill="%2318223b" width="64" height="64"/><text x="32" y="36" fill="%237aa2f7" font-size="10" text-anchor="middle">?</text></svg>');
+        };
+        frame.appendChild(img);
+        const nick = document.createElement('div');
+        nick.className = 'qc-mission-rank-nick';
+        nick.textContent = r.nickname;
+        nick.title = r.nickname;
+        const sc = document.createElement('div');
+        sc.className = 'qc-mission-rank-score';
+        sc.textContent = String(r.score);
+        cell.appendChild(tag);
+        cell.appendChild(frame);
+        cell.appendChild(nick);
+        cell.appendChild(sc);
+        rowEl.appendChild(cell);
+      });
+    }
+    if (totalEl) {
+      totalEl.textContent = '';
+      if (!n) {
+        totalEl.textContent = '—';
+      } else {
+        const lab = document.createElement('span');
+        lab.textContent = 'คะแนนรวม ';
+        const nums = document.createElement('span');
+        nums.className = 'qc-mission-total-nums';
+        nums.textContent = '(' + parts.join('+') + ') = ' + total;
+        const tail = document.createElement('span');
+        tail.textContent = ' · เฉลี่ยทีม ' + avgForGrade + '/100';
+        totalEl.appendChild(lab);
+        totalEl.appendChild(nums);
+        totalEl.appendChild(tail);
+      }
+    }
+    if (gradeEl) {
+      gradeEl.textContent = grade;
+      gradeEl.className = 'qc-mission-grade qc-mission-grade--' + String(grade).toLowerCase();
+    }
+    const okMission = grade !== 'F';
+    if (checkEl) checkEl.style.display = okMission ? '' : 'none';
+    if (successTxt) {
+      successTxt.style.display = okMission ? '' : 'none';
+      if (okMission) successTxt.textContent = 'ภารกิจสำเร็จ';
+    }
+    if (cardTextEl) {
+      cardTextEl.textContent = '';
+      if (grade === 'F') {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque qc-mission-reward-plaque--muted';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = 'ไม่ได้รับการ์ด';
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = 'เกรด F';
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      } else if (reward) {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = reward.th;
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = reward.en;
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      }
+    }
+    overlay.classList.remove('is-hidden');
+    const btn = document.getElementById('btn-quiz-carry-mission-done');
+    if (btn) {
+      btn.onclick = function () {
+        overlay.classList.add('is-hidden');
+        if (previewMode && editorEmbedReturn) {
+          showQuizCarryTimeupOnDeskLayer();
+        } else {
+          window.location.href = buildRoomLobbyReturnHref();
+        }
+      };
+    }
+  }
+
+  function showQuizCarrySessionCompleteOverlay() {
+    if (quizCarrySessionEnded) return;
+    quizCarrySessionEnded = true;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    hideQuizCarryEmbedCountdownOverlay();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    playQuizText = 'ครบชุดคำถามแล้ว';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'ครบ ' + String(quizCarryRoundsCompleted) + ' ข้อ';
+    const missionOv = document.getElementById('quiz-carry-mission-overlay');
+    if (missionOv && quizCarryUseMissionSummaryOverlay) {
+      showQuizCarryMissionSummaryOverlay({
+        forceGradeF: !!(playQuizPlayerLocal && playQuizPlayerLocal.eliminated),
+      });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'เกมจบ · Game over';
+    msgEl.textContent = 'ครบจำนวนคำถามที่ตั้งไว้ (' + String(quizCarryRoundsCompleted) + ' ข้อ) · Quiz carry session finished';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  /** Toast กลางบน (หยิบ / ถูก / ผิด / คำใบ้) — ปิดการแสดงตามคำขอ UX */
+  function showQuizCarryToast(msg, ok) {
+    if (typeof window.__quizCarryToastT === 'number') clearTimeout(window.__quizCarryToastT);
+    window.__quizCarryToastT = null;
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.className = 'play-quiz-feedback';
+    el.textContent = '';
+  }
+
+  /**
+   * หยิบ/ส่งคำตอบ — ต้องกด F (fromKey) สำหรับผู้เล่น · บอท preview เรียกแบบ silent เมื่อหยุดเดินแล้ว
+   * @returns {boolean} ทำ action สำเร็จหรือไม่
+   */
+  function tryQuizCarryInteractionForPlayer(actorId, ox, oy, opts) {
+    opts = opts || {};
+    if (quizCarryPregameActive) return false;
+    if (quizCarrySessionEnded) return false;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(ox, oy);
+    const ent = actorId === myId ? me : others.get(actorId);
+    if (!ent) return false;
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    const canSubmitAnswer = quizCarryCanSubmitAnswerAt(md, ox, oy);
+    const correct = quizCarryCurrent.correctIndex;
+    let held = ent.quizCarryHeld;
+    if (held != null && canSubmitAnswer) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      ent.quizCarryHeld = null;
+      const ok = held === correct;
+      if (ok) {
+        playLiveQuizScores[actorId] = (playLiveQuizScores[actorId] || 0) + QUIZ_CARRY_POINTS_PER_CORRECT;
+        const lim = previewMode && isQuizCarry() ? quizCarrySessionLength : 0;
+        const willEnd = lim > 0 && (quizCarryRoundsCompleted + 1) >= lim;
+        const showMapFb = !opts.silent && actorId === myId;
+        if (showMapFb) showQuizMapQuestionCarryFeedback(true);
+        if (!opts.silent) {
+          const pts = QUIZ_CARRY_POINTS_PER_CORRECT;
+          showQuizCarryToast(willEnd ? ('ถูกต้อง +' + pts + ' แต้ม — ครบชุดคำถาม') : ('ถูกต้อง +' + pts + ' แต้ม — สุ่มคำถามใหม่'), true);
+        }
+        me.quizCarryHeld = null;
+        others.forEach((o) => { if (o) o.quizCarryHeld = null; });
+        const afterOk = () => { quizCarryAfterRoundResolved(); };
+        if (showMapFb) {
+          window.setTimeout(afterOk, 560);
+        } else {
+          afterOk();
+        }
+      } else {
+        if (!opts.silent && actorId === myId) {
+          showQuizMapQuestionCarryFeedback(false);
+        }
+        if (!opts.silent) {
+          showQuizCarryToast('ผิด — คืนป้ายที่โซนตัวเลือกแล้ว กด F หยิบใหม่ได้', false);
+        }
+      }
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return true;
+    }
+    if (held == null && pickupIdx != null) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      if (quizCarryOptionHeldByAnyone(pickupIdx)) {
+        if (opts.fromKey && actorId === myId && !opts.silent) {
+          showQuizCarryToast('ตัวเลือกนี้มีคนถืออยู่แล้ว — เลือกข้ออื่น', false);
+        }
+        return false;
+      }
+      ent.quizCarryHeld = pickupIdx;
+      const label = (quizCarryCurrent.choices && quizCarryCurrent.choices[pickupIdx]) || String(pickupIdx);
+      if (!opts.silent) {
+        showQuizCarryToast('หยิบ: ' + label, true);
+      }
+      return true;
+    }
+    if (opts.fromKey && actorId === myId && !opts.silent) {
+      const t = Date.now();
+      if (t - (me.quizCarryHintT || 0) > 2200) {
+        me.quizCarryHintT = t;
+        if (held != null && !canSubmitAnswer) {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ถือป้ายอยู่ — ยืนที่โซน interactive (เขียว) หรือชิดขอบแล้วกด F เพื่อส่ง'
+            : 'ถือป้ายอยู่ — ยืนชิดโซนกลาง (ม่วง) แล้วกด F เพื่อส่ง', false);
+        } else {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนโซนเขียว (interactive) แล้วกด F ส่งเมื่อถือป้าย'
+            : 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนชิดโซนกลางแล้วกด F ส่งเมื่อถือป้าย', false);
+        }
+      }
+    }
+    return false;
+  }
+
+  function quizCarryGrabCoreGatesOk() {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    if (quizCarryPregameActive || quizCarrySessionEnded) return false;
+    if (myId == null) return false;
+    if (isQuizCarryEmbedCountdownBlockingMovement()) return false;
+    if (!quizCarryOptionsPickableNow()) return false;
+    return true;
+  }
+
+  /** ดัชนีตัวเลือก 0-based ที่ผู้เล่นท้องถิ่นยืนอยู่และหยิบได้ — ไม่มีคืน null */
+  function getQuizCarryLocalGrabbableOptionIndex() {
+    if (!quizCarryGrabCoreGatesOk()) return null;
+    if (me.quizCarryHeld != null) return null;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(me.x, me.y);
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0];
+      const ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    if (pickupIdx == null || quizCarryOptionHeldByAnyone(pickupIdx)) return null;
+    return pickupIdx;
+  }
+
+  /** ยืนบนช่องตัวเลือกและหยิบได้ */
+  function quizCarryGrabPickupAvailable() {
+    return getQuizCarryLocalGrabbableOptionIndex() != null;
+  }
+
+  /** ถือป้ายแล้วยืนโซนส่งได้ */
+  function quizCarryGrabSubmitAvailable() {
+    if (!quizCarryGrabCoreGatesOk()) return false;
+    if (me.quizCarryHeld == null) return false;
+    return quizCarryCanSubmitAnswerAt(mapData, me.x, me.y);
+  }
+
+  /** true = กด F / ปุ่ม จะหยิบหรือส่งได้ทันที */
+  function quizCarryGrabInteractionAvailable() {
+    return quizCarryGrabPickupAvailable() || quizCarryGrabSubmitAvailable();
+  }
+
+  function syncQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    if (!isQuizCarry() || !mapData) {
+      btn.classList.add('is-hidden');
+      btn.classList.remove('quiz-carry-grab-btn--active');
+      btn.classList.remove('quiz-carry-grab-btn--place');
+      btn.setAttribute('aria-disabled', 'true');
+      return;
+    }
+    const grabSrc = BASE + '/img/quiz-carry/btn-grab.png';
+    const placeSrc = BASE + '/img/quiz-carry/btn-drop.png';
+    const img = btn.querySelector('img');
+    btn.classList.remove('is-hidden');
+    const active = quizCarryGrabInteractionAvailable();
+    btn.classList.toggle('quiz-carry-grab-btn--active', active);
+    btn.setAttribute('aria-disabled', active ? 'false' : 'true');
+    btn.style.pointerEvents = active ? '' : 'none';
+    if (img) {
+      if (active && quizCarryGrabSubmitAvailable()) {
+        img.src = placeSrc;
+        btn.classList.add('quiz-carry-grab-btn--place');
+        btn.title = 'ส่ง / วางคำตอบ — เหมือนกด F';
+        btn.setAttribute('aria-label', 'ส่งหรือวางคำตอบ');
+      } else {
+        img.src = grabSrc;
+        btn.classList.remove('quiz-carry-grab-btn--place');
+        btn.title = 'หยิบตัวเลือก — เหมือนกด F';
+        btn.setAttribute('aria-label', 'หยิบตัวเลือก (Grab)');
+      }
+    }
+  }
+
+  function resetQuizCarryPlayState() {
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPool = [];
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryEmbedCountdownOverlay();
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+  }
+
+  /** รวม carry จากดิสก์ — ใช้เฉพาะ GET ที่ Node รองรับ (path เดียวกับ server.js) ไม่เรียก .php เพื่อกัน 404 บน nginx/php-fpm */
+  async function mergeQuizCarrySettingsFromDisk(s) {
+    const out = s && typeof s === 'object' ? s : {};
+    try {
+      const rd = await fetch(BASE + '/api/quiz-carry-from-disk?_=' + Date.now(), { cache: 'no-store' });
+      if (rd.ok) {
+        const disk = await rd.json();
+        if (disk && typeof disk === 'object') {
+          if (disk.carryMapPanelTheme && typeof disk.carryMapPanelTheme === 'object') {
+            out.carryMapPanelTheme = disk.carryMapPanelTheme;
+          }
+          if (disk.carryEmbedCountdownTheme && typeof disk.carryEmbedCountdownTheme === 'object') {
+            out.carryEmbedCountdownTheme = disk.carryEmbedCountdownTheme;
+          }
+          if (Array.isArray(disk.carryChoicePlaqueThemes) && disk.carryChoicePlaqueThemes.length) {
+            out.carryChoicePlaqueThemes = disk.carryChoicePlaqueThemes;
+          } else if (disk.carryChoicePlaqueTheme && typeof disk.carryChoicePlaqueTheme === 'object') {
+            out.carryChoicePlaqueTheme = disk.carryChoicePlaqueTheme;
+          }
+          if (disk.carryReadMs != null) out.carryReadMs = disk.carryReadMs;
+          if (disk.carryAnswerMs != null) out.carryAnswerMs = disk.carryAnswerMs;
+          if (disk.carrySessionLength != null) out.carrySessionLength = disk.carrySessionLength;
+          const diskPlaqueScale = Number(disk.carryChoicePlaqueMapScale);
+          if (Number.isFinite(diskPlaqueScale)) {
+            out.carryChoicePlaqueMapScale = Math.max(0.85, Math.min(2.5, diskPlaqueScale));
+          }
+          if (Array.isArray(disk.carryQuestions) && disk.carryQuestions.length > 0) {
+            out.carryQuestions = disk.carryQuestions;
+          }
+        }
+      }
+    } catch (e) { /* ignore */ }
+    return out;
+  }
+
+  async function loadQuizCarryPoolAndStart() {
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    quizCarrySessionLength = 0;
+    let pool = [];
+    let s = {};
+    const snap = quizCarryJoinSettingsSnap && typeof quizCarryJoinSettingsSnap === 'object' ? quizCarryJoinSettingsSnap : null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) {
+        const raw = await r.text();
+        const trimmed = (raw || '').trim();
+        if (trimmed.startsWith('{') && trimmed.endsWith('}')) {
+          const parsed = JSON.parse(trimmed);
+          if (parsed && typeof parsed === 'object') s = parsed;
+        }
+      }
+    } catch (e) { /* Node/HTML error — ต่อจาก merge ดิสก์ */ }
+    try {
+      s = await mergeQuizCarrySettingsFromDisk(s);
+    } catch (e) { /* ignore */ }
+    if (snap) {
+      if (s.carryReadMs == null && snap.carryReadMs != null) s.carryReadMs = snap.carryReadMs;
+      if (s.carryAnswerMs == null && snap.carryAnswerMs != null) s.carryAnswerMs = snap.carryAnswerMs;
+      if (s.carrySessionLength == null && snap.carrySessionLength != null) s.carrySessionLength = snap.carrySessionLength;
+    }
+    if (snap && snap.carryMapPanelTheme && typeof snap.carryMapPanelTheme === 'object') {
+      s.carryMapPanelTheme = snap.carryMapPanelTheme;
+    }
+    if (snap && snap.carryEmbedCountdownTheme && typeof snap.carryEmbedCountdownTheme === 'object') {
+      s.carryEmbedCountdownTheme = snap.carryEmbedCountdownTheme;
+    }
+    /* ไม่ทับ carryChoicePlaqueThemes จาก snap ถ้ามีแล้ว — snapshot ตอน join อาจเก่ากว่าไฟล์ที่เพิ่งบันทึกใน Admin (รูปป้ายหาย) */
+    if (snap && (!Array.isArray(s.carryChoicePlaqueThemes) || !s.carryChoicePlaqueThemes.length)) {
+      if (Array.isArray(snap.carryChoicePlaqueThemes) && snap.carryChoicePlaqueThemes.length) {
+        s.carryChoicePlaqueThemes = snap.carryChoicePlaqueThemes;
+      } else if (snap.carryChoicePlaqueTheme && typeof snap.carryChoicePlaqueTheme === 'object') {
+        s.carryChoicePlaqueTheme = snap.carryChoicePlaqueTheme;
+      }
+    }
+    if (snap && (s.carryChoicePlaqueMapScale == null || !Number.isFinite(Number(s.carryChoicePlaqueMapScale)))) {
+      const sm = Number(snap.carryChoicePlaqueMapScale);
+      if (Number.isFinite(sm)) s.carryChoicePlaqueMapScale = sm;
+    }
+    {
+      const sc = Number(s.carryChoicePlaqueMapScale);
+      quizCarryPlaqueMapScale = Number.isFinite(sc) ? Math.max(0.85, Math.min(2.5, sc)) : 1.25;
+    }
+    try {
+      quizCarryCarryTimingMs = {
+        carryReadMs: clampPreviewMs(s.carryReadMs, 3000, 0, 120000),
+        carryAnswerMs: clampPreviewMs(s.carryAnswerMs, 5000, 1000, 300000),
+      };
+      quizCarrySessionLength = clampCarrySessionLen(s.carrySessionLength, 0);
+      setQuizCarryMapPanelThemeFromApi(s);
+      setQuizCarryEmbedCountdownThemeFromApi(s);
+      setQuizCarryChoicePlaqueThemeFromApi(s);
+      for (let ti = 0; ti < QUIZ_CARRY_MAX_OPTION_SLOTS; ti++) {
+        const tUrl = sanitizeQuizCarryImageUrlClient(getEffectiveCarryChoicePlaqueThemeForChoice(ti).plaqueImageUrl);
+        if (!tUrl || quizCarryChoiceImageCache.has(tUrl)) continue;
+        const pim = new Image();
+        quizCarryApplyImageCrossOrigin(pim, tUrl);
+        pim.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(tUrl, pim);
+        try {
+          pim.src = tUrl;
+        } catch (e) { /* ignore */ }
+      }
+      const carryOnly = s && Array.isArray(s.carryQuestions) && s.carryQuestions.length > 0;
+      const source = carryOnly ? s.carryQuestions : (s && Array.isArray(s.questions) ? s.questions : []);
+      for (let i = 0; i < source.length; i++) {
+        const n = normalizeQuizCarryQuestionFromAny(source[i]);
+        if (n) pool.push(n);
+      }
+    } catch (e) { /* map only */ }
+    if (!pool.length && mapData) pool = buildQuizCarryPoolFromMap(mapData);
+    quizCarryPool = pool;
+    for (let pi = 0; pi < pool.length; pi++) preloadQuizCarryChoiceImages(pool[pi]);
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    if (!pool.length) {
+      playQuizText = 'ไม่มีคำถาม — ตั้งใน Admin → คำถามหลายตัวเลือก หรือใส่ในแมป (quizQuestions)';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      try {
+        syncPlayQuizMapPanel();
+      } catch (e) { /* ignore */ }
+      quizCarryJoinSettingsSnap = null;
+      return;
+    }
+    if (previewMode && editorEmbedReturn) {
+      beginQuizCarryEmbedPregame();
+    } else if (isDetectiveMinigamePlay()) {
+      quizCarryPickNextQuestion();
+    } else {
+      quizCarryPickNextQuestion();
+    }
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+    try {
+      syncPlayQuizMapPanel();
+    } catch (e) { /* ignore */ }
+    quizCarryJoinSettingsSnap = null;
+  }
+
+  function setupPlayQuizCarryUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (isDetectiveMinigamePlay() || (previewMode && editorEmbedReturn)) {
+        ov.classList.add('is-hidden');
+        ov.setAttribute('aria-hidden', 'true');
+      } else {
+        ov.classList.remove('is-hidden');
+        ov.setAttribute('aria-hidden', 'false');
+      }
+    }
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = isDetectiveMinigamePlay()
+        ? ''
+        : (quizCarryMapHasAnswerInteractive(mapData)
+          ? 'แต่ละตัวเลือกมีคนถือได้คนเดียว — ส่งคำตอบที่โซน interactive (เขียว) · โซนกลางม่วงเป็นกำแพง · กด F หรือปุ่ม GRAB มุมขวาล่าง'
+          : 'แต่ละตัวเลือกมีคนถือได้คนเดียว — โซนกลางเป็นกำแพง · ยืนชิดขอบแล้วกด F หรือปุ่ม GRAB ส่งเมื่อถือป้าย');
+    }
+    resetQuizCarryPlayState();
+    if (previewMode) {
+      loadQuizCarryPoolAndStart();
+    } else {
+      playQuizText = 'เข้าห้องแล้ว — คำถามจากแมป (เล่นจริงแนะนำซิงก์ผ่านโฮสต์ในอนาคต)';
+      loadQuizCarryPoolAndStart();
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    syncQuizCarryGrabButton();
+  }
+
+  function pickRandomTileForQuizCarryOption(md, optionIndex, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const want = optionIndex + 1;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryOptionArea && md.quizCarryOptionArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === want && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryHub(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryHubArea && md.quizCarryHubArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryInteractive(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive && md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileForQuizCarrySubmit(md, o) {
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      const p = pickRandomTileInQuizCarryInteractive(md, o);
+      if (p) return p;
+    }
+    return pickRandomTileInQuizCarryHub(md, o);
+  }
+
+  /** ช่วงไม่มีข้อ / รอตัวเลือก — ให้บอทเดินเล่นในแมปเหมือน preview ทั่วไป (กันยืนนิ่งทั้งเกม) */
+  function quizCarryPreviewBotLobbyWanderStep(o, w, h) {
+    const now = Date.now();
+    o.botIsWalking = false;
+    if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+      const d = pickRandomPreviewBotWanderDir();
+      o.botWanderDx = d[0];
+      o.botWanderDy = d[1];
+    }
+    if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+    if (now >= o.botWanderNextTurn) {
+      o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+      if (Math.random() < 0.55) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+    }
+    const accX = o.botWanderDx;
+    const accY = o.botWanderDy;
+    if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+    else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+    const step = MOVE_SPEED;
+    const nx = o.x + accX * step;
+    const ny = o.y + accY * step;
+    const ox = o.x;
+    const oy = o.y;
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+    }
+    if (!Number.isFinite(o.x)) o.x = 0.5;
+    if (!Number.isFinite(o.y)) o.y = 0.5;
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+  }
+
+  function stepQuizCarryPreviewBots() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!playBotsEnabled() || !isQuizCarry() || !mapData) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const nowPf = performance.now();
+    const pathfindMinGap = editorEmbedReturn ? 280 : 140;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (quizCarryFootprintOverlapsHub(o.x, o.y)) {
+        const sn = snapPositionOutOfQuizCarryHubIfNeeded(o.x, o.y);
+        if (Math.abs(sn.x - o.x) > 0.02 || Math.abs(sn.y - o.y) > 0.02) {
+          o.x = sn.x;
+          o.y = sn.y;
+          o.botPath = [];
+          o.botPathStuckTicks = 0;
+          o.botQuizCarryPathfindAfter = 0;
+        }
+      }
+      if (!o.botPath || o.botPath.length === 0) {
+        tryQuizCarryInteractionForPlayer(id, o.x, o.y, { silent: true });
+      }
+      /* ช่วงนับถอยหลัง / เปลี่ยนข้อ — ยังให้เดินได้ */
+      if (!quizCarryCurrent) {
+        quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        return;
+      }
+      const tier = o.botTier || 'avg';
+      const pCorrect = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.35 : 0.65;
+      const rawWant = Math.random() < pCorrect ? quizCarryCurrent.correctIndex
+        : Math.floor(Math.random() * Math.max(2, (quizCarryCurrent.choices || []).length));
+      const wantIdx = pickQuizCarryTargetOptionIndexAvoidingTaken(rawWant);
+      if (!o.botPath || !o.botPath.length) {
+        if (typeof o.botQuizCarryPathfindAfter !== 'number') o.botQuizCarryPathfindAfter = 0;
+        if (nowPf < o.botQuizCarryPathfindAfter) {
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+          return;
+        }
+        const jitter = (String(id).length * 31 + ((o.x | 0) ^ (o.y | 0)) * 7) % 160;
+        if (quizCarryOptionsPickableNow()) {
+          if (o.quizCarryHeld == null && wantIdx != null) {
+            const dest = pickRandomTileForQuizCarryOption(mapData, wantIdx, o);
+            if (dest) {
+              const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          } else {
+            const sub = pickRandomTileForQuizCarrySubmit(mapData, o);
+            if (sub) {
+              const path = pathfindPlayForBot(o.x, o.y, sub.x + 0.5, sub.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          }
+          o.botQuizCarryPathfindAfter = nowPf + pathfindMinGap + jitter;
+        } else {
+          o.botQuizCarryPathfindAfter = nowPf + 120;
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        }
+      } else {
+        stepPreviewBotAlongPath(o, w, h);
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+  }
+
+  function getStackAreaBoundsPlay(area, w, h) {
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let any = false;
+    for (let y = 0; y < h; y++) {
+      const row = area && area[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) {
+          any = true;
+          minX = Math.min(minX, x);
+          maxX = Math.max(maxX, x);
+          minY = Math.min(minY, y);
+          maxY = Math.max(maxY, y);
+        }
+      }
+    }
+    if (!any) return null;
+    return {
+      minX, maxX, minY, maxY,
+      cx: (minX + maxX + 1) / 2,
+      cy: (minY + maxY + 1) / 2,
+    };
+  }
+
+  function getStackCameraCentersPx() {
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let cx = (w / 2) * ts;
+    let cy = (h / 2) * ts;
+    if (land && rel) {
+      cx = land.cx * ts;
+      cy = ((land.cy + rel.cy) / 2) * ts;
+    } else if (land) {
+      cx = land.cx * ts;
+      cy = land.cy * ts;
+    } else if (rel) {
+      cx = rel.cx * ts;
+      cy = rel.cy * ts;
+    }
+    return { px: cx, py: cy };
+  }
+
+  /** ใช้ playStackBlockWidthTiles + แผนที่ — เรียกหลังโหลด /api/game-timing เมื่อหอว่าง */
+  function reapplyStackMiniSizingFromGlobals() {
+    if (!mapData || !isStack() || !stackMini) return;
+    if (stackMini.layers && stackMini.layers.length > 0) return;
+    if (stackFall || stackMini.settling) return;
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const iw = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackMini.initialWidthTiles = iw;
+    stackMini.widthTiles = iw;
+  }
+
+  function resetStackMinigameState() {
+    stackMini = null;
+    if (!mapData || !isStack()) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let towerCX = w * 0.5;
+    let swingAmp = 1.85;
+    let floorWorldY = (h - 1) * tileSize;
+    let swingWorldY = floorWorldY - tileSize * 1.35;
+    if (land) {
+      towerCX = land.cx;
+      floorWorldY = (land.maxY + 1) * tileSize;
+      const span = Math.max(1, land.maxX - land.minX + 1);
+      swingAmp = Math.min(span * 0.44, Math.max(0.6, span * 0.36));
+    }
+    if (rel) {
+      swingWorldY = (rel.cy + 0.5) * tileSize;
+      const spanR = Math.max(1, rel.maxX - rel.minX + 1);
+      swingAmp = Math.max(swingAmp, Math.min(spanR * 0.42, 4.2));
+    }
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const initW = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackFall = null;
+    stackMini = {
+      topCenterX: towerCX,
+      widthTiles: initW,
+      initialWidthTiles: initW,
+      craneWorldX: towerCX * tileSize,
+      swingAmp,
+      phase: Math.random() * Math.PI * 2,
+      phaseSpeed: playStackSwingHz,
+      floorWorldY,
+      swingWorldY,
+      layerWorldH: Math.max(14, tileSize * 0.3),
+      blockStripH: Math.max(16, tileSize * 0.32),
+      layers: [],
+      lives: 3,
+      score: 0,
+      combo: 0,
+      lastDropAt: 0,
+      stackTiltRad: 0,
+      stackTiltVel: 0,
+    };
+    if (previewFillBots) {
+      me.stackPreviewHumanPts = 0;
+      stackPreviewHudLog = [];
+    }
+  }
+
+  function stackEaseDrop(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t;
+  }
+
+  /** ตกช้า/นุ่มขึ้นเมื่อปล่อยเพี้ยนกลาง (คล้าย Tower of Babel — มีน้ำหนักก่อนนิ่ง) */
+  function stackEaseDropPhys(t, sloppyN) {
+    t = Math.max(0, Math.min(1, t));
+    if (sloppyN < 0.14) return t * t;
+    return t < 0.5 ? 4 * t * t * t : 1 - Math.pow(-2 * t + 2, 3) / 2;
+  }
+
+  /**
+   * @param {object} hit
+   * @param {{ human?: boolean, botId?: string } | undefined} previewAttribution — โหมด preview: แยกคะแนนแสดงในแถบ (ตึกยังเป็นของร่วม)
+   */
+  function applyStackHitFromDrop(hit, previewAttribution) {
+    if (!stackMini || !hit) return;
+    if (hit.miss) {
+      stackMini.lives = Math.max(0, stackMini.lives - 1);
+      stackMini.combo = 0;
+      if (stackMini.lives <= 0) {
+        stackMini.score = Math.max(0, stackMini.score - 2);
+        stackMini.lives = 3;
+        stackMini.layers = [];
+        stackMini.widthTiles = stackMini.initialWidthTiles;
+        const lb = getStackAreaBoundsPlay(mapData.stackLandArea, mapData.width || 20, mapData.height || 15);
+        stackMini.topCenterX = lb ? lb.cx : (mapData.width || 20) * 0.5;
+        stackMini.combo = 0;
+        stackMini.stackTiltRad = 0;
+        stackMini.stackTiltVel = 0;
+      }
+    } else {
+      const W = stackMini.initialWidthTiles;
+      stackMini.layers.push({ w: W, cx: hit.placedCx });
+      stackMini.score += hit.pts;
+      if (previewFillBots && previewAttribution) {
+        if (previewAttribution.human) {
+          me.stackPreviewHumanPts = (me.stackPreviewHumanPts || 0) + hit.pts;
+        } else if (previewAttribution.botId) {
+          const ob = others.get(previewAttribution.botId);
+          if (ob) ob.stackBotScore = (ob.stackBotScore || 0) + hit.pts;
+        }
+      }
+      stackMini.combo = hit.perfect ? stackMini.combo + 1 : 0;
+      stackMini.widthTiles = W;
+      stackMini.topCenterX = hit.placedCx;
+    }
+  }
+
+  /**
+   * บล็อกทุกชั้นหน้ากว้างเท่ากัน (initialWidthTiles) · พลาดเมื่อทับแท่นไม่พอ
+   * วาดชั้นเป็นสี่เหลี่ยมแนวนอน (ไม่หมุนต่อชั้น) เพื่อกองตรง ไม่บิดเป็นกองไม้
+   */
+  function computeStackDropResult(m) {
+    const raw = m.swingAmp * Math.sin(m.phase);
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const fallW = m.initialWidthTiles;
+    let supportCx;
+    let supportW;
+    if (m.layers.length === 0) {
+      supportCx = land ? land.cx : wMap * 0.5;
+      supportW = land ? (land.maxX - land.minX + 1) : Math.max(8, fallW * 2.2);
+    } else {
+      const sup = m.layers[m.layers.length - 1];
+      supportCx = sup.cx;
+      supportW = fallW;
+    }
+    const c1 = m.topCenterX + raw;
+    const half1 = fallW * 0.5;
+    const half0 = supportW * 0.5;
+    const left = Math.max(supportCx - half0, c1 - half1);
+    const right = Math.min(supportCx + half0, c1 + half1);
+    const overlap = right - left;
+    const missThreshold =
+      m.layers.length === 0
+        ? Math.max(0.32, fallW * 0.11)
+        : Math.max(0.26, fallW * 0.17);
+    const miss = overlap < missThreshold;
+    const placedCx = c1;
+    const delta = c1 - supportCx;
+    const span = supportW * 0.5 + fallW * 0.5;
+    const offN = Math.abs(delta) / Math.max(0.01, span);
+    const perfect = !miss && offN < 0.075;
+    const bonus = perfect ? Math.min(4, m.combo || 0) : 0;
+    const pts = perfect ? (2 + bonus) : (miss ? 0 : 1);
+    const supportRatio = fallW > 0 ? overlap / fallW : 0;
+    return {
+      miss,
+      perfect,
+      pts,
+      landOffsetTiles: raw,
+      placedW: fallW,
+      placedCx,
+      overlap,
+      supportRatio,
+      delta,
+    };
+  }
+
+  /**
+   * เริ่มแอนิเมชันบล็อกร่วง (ผู้เล่น/บอทใช้ path เดียวกัน)
+   * @param {object} hit จาก computeStackDropResult
+   * @param {{ human?: boolean, botId?: string } | null} previewActor โหมด preview: ใครเป็นคนปล่อย (สำหรับคะแนน + เลื่อนตา)
+   * @returns {boolean}
+   */
+  function startStackFallAnimation(hit, previewActor) {
+    if (!stackMini || !hit || stackFall || stackMini.settling) return false;
+    const m = stackMini;
+    const tw = m.widthTiles * tileSize;
+    const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+    const lh = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    let y1 = m.floorWorldY - (m.layers.length + 1) * lh;
+    if (y1 <= m.swingWorldY) y1 = m.swingWorldY + lh * 0.55;
+    const landOff = hit.landOffsetTiles || 0;
+    const landCxWorld = (m.topCenterX + landOff) * tileSize;
+    const xLeft0 = swingXW - tw / 2;
+    const xLeft1 = landCxWorld - tw / 2;
+    const offN = Math.min(1, Math.abs(landOff) / Math.max(0.01, m.swingAmp));
+    const dur = Math.max(400, Math.min(1280, 240 + (y1 - m.swingWorldY) * 0.92 + offN * 560));
+    const tiltMax = hit.miss
+      ? 0.28 * (0.25 + offN)
+      : 0.16 * offN * (hit.perfect ? 0.1 : 1);
+    const isHumanPreview = !!(previewActor && previewActor.human);
+    const botIdPreview = previewActor && previewActor.botId ? previewActor.botId : null;
+    stackFall = {
+      t0: performance.now(),
+      dur,
+      xLeft0,
+      xLeft1,
+      tw,
+      y0: m.swingWorldY,
+      y1,
+      hit,
+      tiltMax,
+      sloppyN: offN,
+      previewHumanDrop: isHumanPreview,
+      previewBotId: botIdPreview,
+    };
+    return true;
+  }
+
+  /** @returns {boolean} เริ่มแอนิเมชันร่วงแล้วหรือไม่ */
+  function tryHumanStackDrop() {
+    if (!stackMini || !isStack() || stackFall || stackMini.settling) return false;
+    if (playBotsEnabled() && mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    if (playBotsEnabled() && !isStackPreviewHumanTurn()) return false;
+    const now = Date.now();
+    if (now - stackMini.lastDropAt < 480) return false;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { human: true } : null)) return false;
+    if (playBotsEnabled()) {
+      lastStackPreviewActorId = '__human__';
+      lastStackPreviewActorUntil = Date.now() + 900;
+    }
+    return true;
+  }
+
+  /** บอท preview: ปล่อยแบบมีแอนิเมชันร่วงเหมือนผู้เล่น — apply หลังแอนิเมชันจบ */
+  function simulatePreviewBotStackDrop(botId, o) {
+    if (!stackMini || stackFall || stackMini.settling) return;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { botId } : null)) return;
+    o.stackBotGlowUntil = Date.now() + Math.max(900, 400 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+    lastStackPreviewActorId = botId;
+    lastStackPreviewActorUntil = Date.now() + Math.max(1000, 500 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+  }
+
+  /** Stack preview: สลับตา — เฉพาะบอทที่ถึงตาถึงจะจำลองปล่อยหนึ่งครั้งแล้วเลื่อนตา */
+  function stepPreviewStackTurnBased(nowMs) {
+    if (!playBotsEnabled() || !isStack() || !stackMini || stackFall || stackMini.settling) return;
+    if (mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    const order = stackPreviewTurnOrder;
+    if (!order || order.length !== stackTurnCount) return;
+    const cur = order[stackPreviewTurnIndex];
+    if (!cur || cur.kind !== 'bot') return;
+    if (!cur.botId) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    const o = others.get(cur.botId);
+    if (!o) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    if (stackPreviewBotThinkUntil === 0) {
+      stackPreviewBotThinkUntil = nowMs + 320 + Math.random() * 480;
+      return;
+    }
+    if (nowMs < stackPreviewBotThinkUntil) return;
+    stackPreviewBotThinkUntil = 0;
+    simulatePreviewBotStackDrop(cur.botId, o);
+  }
+
+  function stackTickFrame() {
+    const now = performance.now();
+    const dt = Math.min(0.06, (now - lastStackTickMs) / 1000);
+    lastStackTickMs = now;
+    if (stackMini && stackMini.settling) {
+      const s = stackMini.settling;
+      const u = (now - s.t0) / s.dur;
+      if (u >= 1) {
+        const wasHuman = !!s.previewHumanDrop;
+        const settleBotId = s.previewBotId || null;
+        applyStackHitFromDrop({ miss: true, perfect: false, pts: 0, landOffsetTiles: 0 }, undefined);
+        if (playBotsEnabled() && (wasHuman || settleBotId)) {
+          stackPreviewLogStackDrop({ miss: true, perfect: false, pts: 0 }, { human: wasHuman, botId: settleBotId });
+        }
+        stackMini.settling = null;
+        stackMini.lastDropAt = Date.now();
+        if (playBotsEnabled() && (wasHuman || settleBotId)) advanceStackPreviewTurn();
+      }
+    } else if (stackFall) {
+      const t = (now - stackFall.t0) / stackFall.dur;
+      if (t >= 1) {
+        const wasHuman = !!stackFall.previewHumanDrop;
+        const fallBotId = stackFall.previewBotId || null;
+        const hit = stackFall.hit;
+        const stableMin = 0.52;
+        if (hit.miss) {
+          applyStackHitFromDrop(hit);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        } else if (hit.supportRatio != null && hit.supportRatio < stableMin) {
+          const stripH = stackMini.blockStripH || Math.max(16, tileSize * 0.32);
+          stackMini.settling = {
+            t0: performance.now(),
+            dur: Math.max(820, Math.min(2600, 720 + (1 - hit.supportRatio) * 3400)),
+            hit,
+            xLeft0: stackFall.xLeft1,
+            yTop0: stackFall.y1,
+            twWorld: stackFall.tw,
+            stripH,
+            delta: hit.delta || 0,
+            previewHumanDrop: wasHuman,
+            previewBotId: fallBotId,
+          };
+          stackFall = null;
+        } else {
+          let previewAttr;
+          if (playBotsEnabled()) {
+            if (wasHuman) previewAttr = { human: true };
+            else if (fallBotId) previewAttr = { botId: fallBotId };
+          }
+          applyStackHitFromDrop(hit, previewAttr);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        }
+      }
+    } else if (stackMini) {
+      stackMini.phase += stackMini.phaseSpeed * dt * Math.PI * 2;
+    }
+    stepPreviewStackTurnBased(Date.now());
+  }
+
+  function applyStackPreviewSpawnLayout() {
+    if (!mapData || mapData.gameType !== 'stack') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const cx = land ? land.cx : w / 2 - 0.5;
+    const cy = land ? land.cy : h / 2 - 0.5;
+    me.x = cx;
+    me.y = cy;
+    me.tx = cx;
+    me.ty = cy;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.x = cx + (Math.random() - 0.5) * 0.15;
+      o.y = cy + (Math.random() - 0.5) * 0.15;
+      o.tx = o.x;
+      o.ty = o.y;
+      o.stackBotScore = 0;
+      o.stackBotNextTry = Date.now() + 300 + Math.random() * 700;
+    });
+  }
+
+  function drawStackMinigame(ctx, worldToScreen, zoom) {
+    if (!stackMini) return;
+    const m = stackMini;
+    const layerWorldH = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    const stripH = m.blockStripH || Math.max(16, tileSize * 0.32);
+    const floorY = m.floorWorldY;
+    const guideTopY = Math.max(0, m.swingWorldY - tileSize * 6.5);
+    const [gtx, gty] = worldToScreen(m.topCenterX * tileSize, guideTopY);
+    const [gbx, gby] = worldToScreen(m.topCenterX * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(255,255,255,0.22)';
+    ctx.lineWidth = Math.max(1, zoom * 0.85);
+    ctx.setLineDash([5, 7]);
+    ctx.beginPath();
+    ctx.moveTo(gtx, gty);
+    ctx.lineTo(gbx, gby);
+    ctx.stroke();
+    ctx.setLineDash([]);
+    ctx.lineWidth = 1;
+
+    const nLay = m.layers.length;
+    for (let i = 0; i < nLay; i++) {
+      const L = m.layers[i];
+      const lw = (L.w != null ? L.w : m.initialWidthTiles) * tileSize;
+      const cxW = L.cx * tileSize;
+      const yb = floorY - (i + 1) * layerWorldH;
+      const xl = cxW - lw / 2;
+      const [sx, sy] = worldToScreen(xl, yb);
+      const drawW = lw * zoom;
+      const drawH = layerWorldH * zoom;
+      const hue = (i * 47) % 360;
+      ctx.fillStyle = 'hsla(' + hue + ', 68%, 56%, 0.9)';
+      ctx.fillRect(sx, sy, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255,255,255,0.38)';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(sx, sy, drawW, drawH);
+    }
+    if (m.settling) {
+      const s = m.settling;
+      const u = Math.min(1, (performance.now() - s.t0) / s.dur);
+      const ue = u * u;
+      const rotSign = s.delta >= 0 ? 1 : -1;
+      const rotRad = ue * 1.22 * rotSign;
+      const yFall = ue * ue * tileSize * 6.5;
+      const xSlide = rotSign * ue * tileSize * 0.62;
+      const cxW = s.xLeft0 + s.twWorld / 2 + xSlide;
+      const cyW = s.yTop0 + s.stripH * 0.5 + yFall;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      const drawW = s.twWorld * zoom;
+      const drawH = s.stripH * zoom;
+      const hue = (m.layers.length * 47) % 360;
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(rotRad);
+      ctx.fillStyle = 'hsla(' + hue + ', 70%, 52%, 0.93)';
+      ctx.fillRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255, 200, 140, 0.9)';
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.restore();
+    } else {
+      const twWorld = m.widthTiles * tileSize;
+      const drawStripPx = stripH * zoom;
+      let blockLeftWorld;
+      let blockTopWorld;
+      let fallTiltRad = 0;
+      if (stackFall) {
+        const tRaw = (performance.now() - stackFall.t0) / stackFall.dur;
+        const t = Math.min(1, tRaw);
+        const u = stackEaseDropPhys(t, stackFall.sloppyN);
+        blockLeftWorld = stackFall.xLeft0 + (stackFall.xLeft1 - stackFall.xLeft0) * u;
+        blockTopWorld = stackFall.y0 + (stackFall.y1 - stackFall.y0) * u;
+        fallTiltRad = stackFall.tiltMax * Math.sin(Math.PI * u);
+      } else {
+        const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+        blockLeftWorld = swingXW - twWorld / 2;
+        blockTopWorld = m.swingWorldY;
+        const cableTopY = Math.max(0, m.swingWorldY - tileSize * 6);
+        const craneX = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
+        const cxMid = blockLeftWorld + twWorld / 2;
+        const [tcx, tcy] = worldToScreen(craneX, cableTopY);
+        const [bcx, bcy] = worldToScreen(cxMid, blockTopWorld);
+        ctx.strokeStyle = 'rgba(90, 88, 86, 0.75)';
+        ctx.lineWidth = Math.max(2.2, zoom * 1.4);
+        ctx.setLineDash([]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.strokeStyle = 'rgba(125, 207, 255, 0.35)';
+        ctx.lineWidth = Math.max(1, zoom * 0.65);
+        ctx.setLineDash([3, 5]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.setLineDash([]);
+        ctx.lineWidth = 1;
+      }
+      const hitMissTint = stackFall && stackFall.hit && stackFall.hit.miss;
+      ctx.fillStyle = hitMissTint ? 'rgba(247, 118, 190, 0.88)' : 'rgba(125, 207, 255, 0.95)';
+      ctx.strokeStyle = hitMissTint ? 'rgba(255, 180, 210, 0.98)' : 'rgba(192, 202, 245, 0.98)';
+      const cxW = blockLeftWorld + twWorld / 2;
+      const cyW = blockTopWorld + stripH * 0.5;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(fallTiltRad);
+      ctx.fillRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 1;
+      ctx.restore();
+    }
+    const [fsx, fsy] = worldToScreen(0, floorY);
+    const [fex, fey] = worldToScreen(mapData.width * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(247, 118, 190, 0.65)';
+    ctx.lineWidth = 3;
+    ctx.beginPath();
+    ctx.moveTo(fsx, fsy);
+    ctx.lineTo(fex, fey);
+    ctx.stroke();
+    ctx.lineWidth = 1;
+  }
+
+  function applyGauntletTimingFromServer(payload) {
+    if (!payload || typeof payload !== 'object') return;
+    const tm = Number(payload.gauntletTickMs);
+    if (Number.isFinite(tm)) gauntletRuntimeTickMs = Math.max(80, Math.min(800, tm));
+    const jt = Number(payload.gauntletJumpTicks);
+    if (Number.isFinite(jt)) gauntletRuntimeJumpTicks = Math.max(4, Math.min(40, jt));
+    const tl = Number(payload.gauntletTimeLimitSec);
+    if (Number.isFinite(tl)) gauntletRuntimeTimeLimitSec = Math.max(0, Math.min(7200, tl));
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletEndsAt')) {
+      if (payload.gauntletEndsAt == null) gauntletEndsAtMs = null;
+      else {
+        const ge = Number(payload.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletCrownRunHeld')) {
+      gauntletCrownRunHeldRemote = !!payload.gauntletCrownRunHeld;
+      if (!gauntletCrownRunHeldRemote && isGauntletCrownHeistMapPlay()) {
+        gauntletCrownPregamePhase = 'live';
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaneImageUrls') && Array.isArray(payload.gauntletLaneImageUrls)) {
+      gauntletLaneImageUrls = payload.gauntletLaneImageUrls
+        .filter((x) => typeof x === 'string')
+        .map((x) => normalizeGauntletAssetUrlForPlay(x))
+        .filter((x) => x)
+        .slice(0, 24);
+      gauntletLaneImageUrls.forEach((x) => ensureGauntletAssetImage(x));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserTopUrl')) {
+      gauntletLaserTopUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserTopUrl === 'string' ? payload.gauntletLaserTopUrl : '');
+      ensureGauntletAssetImage(gauntletLaserTopUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserBottomUrl')) {
+      gauntletLaserBottomUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserBottomUrl === 'string' ? payload.gauntletLaserBottomUrl : '');
+      ensureGauntletAssetImage(gauntletLaserBottomUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineUrl')) {
+      gauntletLaserLineUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserLineUrl === 'string' ? payload.gauntletLaserLineUrl : '');
+      ensureGauntletAssetImage(gauntletLaserLineUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserFillColor')) {
+      gauntletLaserFillColor = clampClientLaserColor(payload.gauntletLaserFillColor, gauntletLaserFillColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserStrokeColor')) {
+      gauntletLaserStrokeColor = clampClientLaserColor(payload.gauntletLaserStrokeColor, gauntletLaserStrokeColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineWidthPx')) {
+      const lw = Number(payload.gauntletLaserLineWidthPx);
+      if (Number.isFinite(lw)) gauntletLaserLineWidthPx = Math.max(0, Math.min(24, Math.round(lw)));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackSwingHz')) {
+      const sh = Number(payload.stackSwingHz);
+      if (Number.isFinite(sh)) playStackSwingHz = Math.max(0.08, Math.min(2.8, sh));
+      if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackBlockWidthTiles')) {
+      const raw = payload.stackBlockWidthTiles;
+      if (raw == null || raw === '') playStackBlockWidthTiles = null;
+      else {
+        const nw = Number(raw);
+        playStackBlockWidthTiles = Number.isFinite(nw) && nw >= 0.85
+          ? Math.max(0.85, Math.min(3.2, Math.round(nw * 100) / 100))
+          : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveJumpHeightMult')) {
+      const jm = Number(payload.jumpSurviveJumpHeightMult);
+      if (Number.isFinite(jm)) {
+        playJumpSurviveJumpHeightMult = Math.round(Math.max(0.5, Math.min(4, jm)) * 100) / 100;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveMissionTimeSec')) {
+      const jt = Number(payload.jumpSurviveMissionTimeSec);
+      if (Number.isFinite(jt) && jt > 0) {
+        playJumpSurviveMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(jt)));
+      } else {
+        playJumpSurviveMissionTimeSec = 0;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'spaceShooterMissionTimeSec')) {
+      const st = Number(payload.spaceShooterMissionTimeSec);
+      if (Number.isFinite(st) && st > 0) {
+        playSpaceShooterMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(st)));
+      } else {
+        playSpaceShooterMissionTimeSec = 0;
+      }
+    }
+    if (isStack() && stackMini) reapplyStackMiniSizingFromGlobals();
+  }
+
+  /** เลอร์ปตำแหน่งตัวละครต่อเฟรม (ยิ่งสูงยิ่งตามเป้าเร็ว) */
+  const GAUNTLET_VIS_LERP = 0.42;
+
+  function gauntletObsSmoothstep(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t * (3 - 2 * t);
+  }
+
+  function cloneGauntletObsSnap(arr) {
+    if (!Array.isArray(arr)) return [];
+    return arr.map((o) => {
+      if (!o || o.id == null) return null;
+      const row = { id: o.id, kind: o.kind, x: o.x, y: o.y };
+      if (o.kind === 'laser') {
+        if (o.y0 != null) row.y0 = o.y0;
+        if (o.y1 != null) row.y1 = o.y1;
+      }
+      return row;
+    }).filter(Boolean);
+  }
+
+  function gauntletLaserRowHitRange(ob, mapH) {
+    const h = Math.max(1, Math.floor(Number(mapH)) || 15);
+    let y0 = ob && ob.y0 != null && Number.isFinite(Number(ob.y0)) ? Math.floor(Number(ob.y0)) : 0;
+    let y1 = ob && ob.y1 != null && Number.isFinite(Number(ob.y1)) ? Math.floor(Number(ob.y1)) : h - 1;
+    y0 = Math.max(0, Math.min(h - 1, y0));
+    y1 = Math.max(0, Math.min(h - 1, y1));
+    if (y1 < y0) {
+      const t = y0;
+      y0 = y1;
+      y1 = t;
+    }
+    return { y0, y1 };
+  }
+
+  function gauntletLaserOverlapsPlayerRow(ob, py, mapH) {
+    const { y0, y1 } = gauntletLaserRowHitRange(ob, mapH);
+    return py >= y0 && py <= y1;
+  }
+
+  /** โค้งยกตัว: ขึ้นถึงจุดสูงสุดเร็ว ลงชัน (รู้สึกลงพื้นเร็วกว่าแบบสมมาตร) */
+  function gauntletLiftHeightNorm(air, jumpTicksMax) {
+    const jm = Math.max(4, jumpTicksMax || 16);
+    const a = Math.max(0, Math.min(jm, Number(air) || 0));
+    const t = a / jm;
+    const peakAt = 0.28;
+    if (t >= peakAt) {
+      const span = 1 - peakAt;
+      const u = span > 0 ? (t - peakAt) / span : 0;
+      return Math.max(0, 1 - u * u * 1.2);
+    }
+    return Math.min(1, t / peakAt);
+  }
+
+  function getGauntletObsDrawPositionsAt(nowMs) {
+    if (!gauntletObsRenderNext.length) return [];
+    const elapsed = nowMs - gauntletObsBlendT0;
+    const alpha = gauntletObsSmoothstep(elapsed / gauntletRuntimeTickMs);
+    const prevMap = new Map(gauntletObsRenderPrev.map((o) => [o.id, o]));
+    const out = [];
+    for (let i = 0; i < gauntletObsRenderNext.length; i++) {
+      const n = gauntletObsRenderNext[i];
+      if (!n) continue;
+      const p = prevMap.get(n.id);
+      let drawX = n.x;
+      if (p && Number.isFinite(p.x) && Number.isFinite(n.x)) drawX = p.x + (n.x - p.x) * alpha;
+      const row = { id: n.id, kind: n.kind, drawX, y: n.y };
+      if (n.kind === 'laser') {
+        if (n.y0 != null) row.y0 = n.y0;
+        if (n.y1 != null) row.y1 = n.y1;
+      }
+      out.push(row);
+    }
+    return out;
+  }
+
+  function pushGauntletObsRenderFrame(newObs) {
+    const now = performance.now();
+    const next = cloneGauntletObsSnap(newObs);
+    if (!gauntletObsRenderNext.length) {
+      gauntletObsRenderPrev = next.slice();
+      gauntletObsRenderNext = next.slice();
+    } else {
+      const curDraw = getGauntletObsDrawPositionsAt(now);
+      const curMap = new Map(curDraw.map((o) => [o.id, o.drawX]));
+      gauntletObsRenderPrev = next.map((n) => {
+        const row = {
+          id: n.id,
+          kind: n.kind,
+          x: curMap.has(n.id) ? curMap.get(n.id) : n.x,
+          y: n.y,
+        };
+        if (n.kind === 'laser') {
+          if (n.y0 != null) row.y0 = n.y0;
+          if (n.y1 != null) row.y1 = n.y1;
+        }
+        return row;
+      });
+      gauntletObsRenderNext = next;
+    }
+    gauntletObsBlendT0 = now;
+  }
+
+  function lerpGauntletEntityPos(x, y, tx, ty) {
+    let nx = x;
+    let ny = y;
+    if (tx != null && Number.isFinite(tx)) {
+      nx += (tx - nx) * GAUNTLET_VIS_LERP;
+      if (Math.abs(tx - nx) < 0.02) nx = tx;
+    }
+    if (ty != null && Number.isFinite(ty)) {
+      ny += (ty - ny) * GAUNTLET_VIS_LERP;
+      if (Math.abs(ty - ny) < 0.02) ny = ty;
+    }
+    return { nx, ny };
+  }
+
+  /**
+   * บอท preview ใน Gauntlet: ตัดสินใจกระโดด (client-only; เซิร์ฟเวอร์ไม่รู้จักบอท)
+   * — ตอบสนองสิ่งกีดขวางที่ชนเซลล์เดียวกัน + กระโดดล่วงหน้าเมื่อ threat อยู่คอลัมน์ถัดไป
+   */
+  function maybePreviewBotGauntletJump(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    if ((o.gauntletJumpTicks || 0) > 0) return;
+    const { ch: gauntletCh } = getCharacterFootprintWH(mapData);
+    let sameCell = false;
+    let incomingCol = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const obs = obstacles[i];
+      if (!obs) continue;
+      if (obs.kind === 'lane' && typeof obs.y === 'number') {
+        if (obs.x === px && obs.y >= py && obs.y < py + gauntletCh) sameCell = true;
+        if (obs.x === px + 1 && obs.y >= py && obs.y < py + gauntletCh) incomingCol = true;
+      }
+      if (obs.kind === 'laser' && typeof obs.x === 'number') {
+        if (obs.x === px && gauntletLaserOverlapsPlayerRow(obs, py, h)) sameCell = true;
+        if (obs.x === px + 1 && gauntletLaserOverlapsPlayerRow(obs, py, h)) incomingCol = true;
+      }
+    }
+    const tier = o.botTier || 'avg';
+    const roll = Math.random();
+    const pSame = tier === 'sharp' ? 0.96 : tier === 'weak' ? 0.62 : 0.86;
+    const pAhead = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.48 : 0.72;
+    if (sameCell && roll < pSame) {
+      o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+      return;
+    }
+    if (incomingCol && roll < pAhead) o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+  }
+
+  /** หนึ่ง tick เดียวกับ runGauntletTick ฝั่งเซิร์ฟเวอร์ (เฉพาะ collision + เลื่อน x) */
+  function applyGauntletPhysicsToPreviewBot(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    const air = (o.gauntletJumpTicks || 0) > 0;
+    const { ch: gauntletCh2 } = getCharacterFootprintWH(mapData);
+    const crown = isGauntletCrownHeistMapPlay();
+    let advanceX = false;
+    let hitBack = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const ob = obstacles[i];
+      if (!ob) continue;
+      if (ob.kind === 'lane' && typeof ob.y === 'number' && ob.x === px && ob.y >= py && ob.y < py + gauntletCh2) {
+        if (air) advanceX = true;
+        else hitBack = true;
+      }
+      if (ob.kind === 'laser' && typeof ob.x === 'number' && ob.x === px) {
+        if (!gauntletLaserOverlapsPlayerRow(ob, py, h)) {
+          /* เลเซอร์ไม่ครอบแถวนี้ */
+        } else if (air) {
+          advanceX = true;
+        } else {
+          hitBack = true;
+        }
+      }
+    }
+    if (advanceX) {
+      px = Math.min(w - 2, px + 1);
+      o.gauntletJumpTicks = 0;
+      if (!crown) {
+        o.gauntletScore = (o.gauntletScore || 0) + 1;
+      }
+    } else if (hitBack) {
+      if (crown) {
+        if (px <= 0) {
+          o.gauntletEliminated = true;
+          o.gauntletScore = 0;
+        } else {
+          o.gauntletScore = Math.max(0, (o.gauntletScore || 0) - 10);
+          px = Math.max(0, px - 1);
+        }
+      } else {
+        px = Math.max(0, px - 1);
+      }
+    }
+    if ((o.gauntletJumpTicks || 0) > 0) o.gauntletJumpTicks--;
+    o.tx = px;
+    o.ty = py;
+  }
+
+  function applyGauntletPreviewBotsAfterSync() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const w = mapData.width || 20;
+    const h = mapData.height || 15;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id) || !o) return;
+      maybePreviewBotGauntletJump(o, gauntletObstacles, w, h);
+      applyGauntletPhysicsToPreviewBot(o, gauntletObstacles, w, h);
+    });
+  }
+
+  /** แจ้งเซิร์ฟเวอร์แถว y ที่มีคุณ+บอททดสอบ — lane spawn ใช้เฉพาะแถวที่มี peer; บอทไม่ใช่ peer */
+  function emitGauntletPreviewRowsToServer() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const h = mapData.height || 15;
+    const ysSet = new Set();
+    const addY = (v) => {
+      const fy = Math.floor(Number(v));
+      if (Number.isFinite(fy) && fy >= 0 && fy < h) ysSet.add(fy);
+    };
+    addY(me.y);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) addY(o.y);
+    });
+    socket.emit('gauntlet-preview-rows', { ys: [...ysSet] });
+  }
+
+  /** ซ่อน overlay โหมดอื่นที่ค้างจาก embed / session ก่อน — กัน UI ซ้อนไม่ตรง mock */
+  function hideConflictingOverlaysForGauntletCrown() {
+    hideQuizCarryPregameOverlay();
+    quizCarryPregameActive = false;
+    const hideIds = [
+      'quiz-game-overlay',
+      'quiz-carry-mission-overlay',
+      'gauntlet-ended-overlay',
+      'quiz-battle-mcq-overlay',
+      'quiz-carry-embed-countdown',
+      'gauntlet-crown-countdown',
+      'quiz-carry-embed-q-strip',
+      'play-quiz-scoreboard',
+      'play-quiz-feedback',
+    ];
+    for (let i = 0; i < hideIds.length; i++) {
+      const el = document.getElementById(hideIds[i]);
+      if (el) el.classList.add('is-hidden');
+    }
+    const gcm = document.getElementById('gauntlet-crown-mission-overlay');
+    if (gcm) gcm.classList.add('is-hidden');
+  }
+
+  function gcmRankBadgeUrl(rank) {
+    const r = Math.floor(Number(rank)) || 99;
+    if (r === 1) return BASE + '/img/gauntlet-assets/result-1st.png';
+    if (r === 2) return BASE + '/img/gauntlet-assets/result-2nd.png';
+    if (r === 3) return BASE + '/img/gauntlet-assets/result-3rd.png';
+    return BASE + '/img/gauntlet-assets/result-txt-2.png';
+  }
+
+  function gauntletCrownPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (gauntletCrownLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function gauntletCrownSyncGuestReadyIfNeeded() {
+    if (gauntletCrownPregamePhase !== 'howto') return;
+    if (myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (gauntletCrownLobbyReadyMap[sid]) return;
+    gauntletCrownLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-ready', { ready: true });
+  }
+
+  function updateGauntletCrownHowtoHud() {
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn || !isGauntletCrownHeistMapPlay() || gauntletCrownPregamePhase !== 'howto') return;
+    const humans = quizCarryPregameHumanIds();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    const num = gauntletCrownPregameReadyNumerator();
+    if (st) {
+      st.classList.remove('is-hidden');
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+    btn.classList.toggle('is-start-phase', humansReady);
+    btn.classList.toggle('is-read-only', !isMePlayHost());
+    btn.disabled = !isMePlayHost();
+    btn.setAttribute('aria-pressed', humansReady ? 'false' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'true' : 'false'));
+    btn.title = isMePlayHost()
+      ? (humansReady ? 'START' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'ยกเลิก READY' : 'READY'))
+      : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+  }
+
+  function beginGauntletCrownCountdownThenRun() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = () => {
+      if (cd) cd.classList.add('is-hidden');
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      if (socket && socket.connected) {
+        socket.emit('gauntlet-crown-begin-run', (res) => {
+          if (res && res.ok) gauntletCrownPregamePhase = 'live';
+        });
+      } else {
+        gauntletCrownPregamePhase = 'live';
+      }
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = () => {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        gauntletCrownCountdownTimer = setTimeout(step, 1000);
+      } else {
+        gauntletCrownCountdownTimer = null;
+        runFinish();
+      }
+    };
+    gauntletCrownCountdownTimer = setTimeout(step, 1000);
+  }
+
+  function showGauntletCrownHowtoOverlay() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    hideConflictingOverlaysForGauntletCrown();
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-sync-request');
+    gauntletCrownSyncGuestReadyIfNeeded();
+    updateGauntletCrownHowtoHud();
+  }
+
+  /** Editor embed: quiz_carry / crown ใช้เกรด F = gameover — Jumper: ภาพจบใช้เฉพาะเมื่อไม่มีผู้รอด (0 คน) */
+  function gauntletCrownEmbedMissionAnyOk(mission) {
+    if (!mission) return false;
+    if (mission.uiSkin === 'jumper') {
+      const sc = Number(mission.survivorCount);
+      return Number.isFinite(sc) ? sc > 0 : (String(mission.grade || '').trim().toUpperCase().charAt(0) !== 'F');
+    }
+    const g = String(mission.grade || '').trim().toUpperCase().charAt(0);
+    return g !== 'F';
+  }
+
+  function gauntletCrownRankBonusLocal(rankOrdinal) {
+    if (rankOrdinal === 1) return 100;
+    if (rankOrdinal === 2) return 80;
+    if (rankOrdinal === 3) return 60;
+    return 0;
+  }
+
+  function gauntletCrownRollRewardCardLocal(grade) {
+    const r = Math.random();
+    if (grade === 'A') {
+      if (r < 0.3) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.8) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (r < 0.2) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.5) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.2) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  /**
+   * Editor embed + preview bots: รวมแถวอันดับกับบอท (สูงสุด 5 ช่อง) และคำนวณรวม/เฉลี่ย/เกรดให้สอดคล้องกับแถวที่โชว์
+   * — อันดับในช่องใช้ลำดับ 1..5 หลังเรียงคะแนน (เหมือนแนว quiz_carry mission row)
+   */
+  function gauntletCrownBuildDisplayMission(mission) {
+    if (!mission || !Array.isArray(mission.ranked)) return mission;
+    if (mission.uiSkin === 'jumper') return mission;
+    if (!(previewFillBots && isGauntletCrownHeistMapPlay() && others && typeof others.forEach === 'function')) return mission;
+
+    const seen = new Set();
+    const baseRows = [];
+    mission.ranked.forEach((r) => {
+      if (!r) return;
+      const sid = String(r.id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: r.id,
+        nickname: (r.nickname && String(r.nickname).trim()) ? String(r.nickname).trim() : 'ผู้เล่น',
+        characterId: r.characterId ?? null,
+        baseScore: r.eliminated ? 0 : Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+      });
+    });
+    others.forEach((o, id) => {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.gauntletEliminated ? 0 : Math.max(0, Number(o.gauntletScore) | 0),
+        eliminated: !!o.gauntletEliminated,
+      });
+    });
+
+    baseRows.sort((a, b) => {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      const nick = String(a.nickname).localeCompare(String(b.nickname), 'th');
+      if (nick !== 0) return nick;
+      return String(a.id).localeCompare(String(b.id));
+    });
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map((row, idx) => {
+      const pos = idx + 1;
+      const rankBonus = gauntletCrownRankBonusLocal(pos);
+      const rankLabel = pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos);
+      const finalScore = row.baseScore + rankBonus;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: rankLabel,
+        rankBonus: rankBonus,
+        finalScore: finalScore,
+      };
+    });
+
+    const totalSum = ranked.reduce(function (s, r) { return s + r.finalScore; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const grade = averageScore >= 80 ? 'A' : averageScore >= 60 ? 'B' : 'C';
+    const rewardCard = gauntletCrownRollRewardCardLocal(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: ranked.map(function (r) { return r.finalScore; }),
+    };
+  }
+
+  function showGauntletCrownMissionOverlay(mission) {
+    const ov = document.getElementById('gauntlet-crown-mission-overlay');
+    const rowEl = document.getElementById('gcm-rank-row');
+    const totalEl = document.getElementById('gcm-total');
+    const gradeEl = document.getElementById('gcm-grade');
+    const bonusEl = document.getElementById('gcm-bonus');
+    const btn = document.getElementById('btn-gcm-done');
+    if (!ov || !rowEl || !mission || !Array.isArray(mission.ranked)) return;
+    let disp = gauntletCrownBuildDisplayMission(mission);
+    if (mission.uiSkin === 'jumper') {
+      disp = jumpSurviveMergePreviewBotsMission(disp) || disp;
+    }
+    if (!disp || !Array.isArray(disp.ranked)) return;
+    rowEl.innerHTML = '';
+    disp.ranked.forEach((r) => {
+      const cell = document.createElement('div');
+      cell.className = 'gcm-cell';
+      const tag = document.createElement('div');
+      tag.className = 'gcm-rank-tag';
+      const rk = Math.floor(Number(r.rank)) || 0;
+      if (rk >= 1 && rk <= 3) {
+        const tagImg = document.createElement('img');
+        tagImg.src = gcmRankBadgeUrl(rk);
+        tagImg.alt = '[' + String(r.rankLabel || rk) + ']';
+        tagImg.style.maxWidth = '100%';
+        tagImg.style.height = 'auto';
+        tag.appendChild(tagImg);
+      } else {
+        tag.textContent = '[' + String(r.rankLabel || rk) + ']';
+      }
+      const frame = document.createElement('div');
+      frame.className = 'gcm-frame';
+      const img = document.createElement('img');
+      img.className = 'gcm-av';
+      img.alt = '';
+      const cid = r.characterId ? String(r.characterId) : '';
+      if (cid) {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) img.src = im.src;
+      } else {
+        img.src = defaultAvatarImg.src;
+      }
+      img.onerror = function () {
+        this.onerror = null;
+        this.src = defaultAvatarImg.src;
+      };
+      frame.appendChild(img);
+      if (r.eliminated) {
+        const st = document.createElement('img');
+        st.className = 'gcm-stamp';
+        const jSkin = mission && mission.uiSkin === 'jumper';
+        st.src = jSkin ? jumperAssetUrl('stamp-sacrifice.png') : (BASE + '/img/gauntlet-assets/result-Lose_stamp.png');
+        st.alt = jSkin ? 'ผู้เสียสละ' : 'เสียชีวิต';
+        st.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/gauntlet-assets/result-Lose_stamp.png';
+          this.alt = 'เสียชีวิต';
+        };
+        frame.appendChild(st);
+      }
+      const nick = document.createElement('div');
+      nick.className = 'gcm-nick';
+      nick.textContent = r.nickname || '—';
+      const sc = document.createElement('div');
+      sc.className = 'gcm-sc';
+      const jumpPlain = mission && mission.uiSkin === 'jumper';
+      const botScorePlain = previewFillBots && isGauntletCrownHeistMapPlay() && isPreviewBotId(r.id);
+      sc.textContent = (jumpPlain || botScorePlain)
+        ? String(Math.max(0, Number(r.baseScore) || 0))
+        : String(r.baseScore || 0) + '(+' + String(r.rankBonus || 0) + ')';
+      cell.appendChild(tag);
+      cell.appendChild(frame);
+      cell.appendChild(nick);
+      cell.appendChild(sc);
+      rowEl.appendChild(cell);
+    });
+    if (totalEl) {
+      const parts = (disp.totalParts || []).map((n) => String(Math.max(0, Number(n) || 0)));
+      const sum = Math.max(0, Number(disp.totalSum) || 0);
+      const avg = Math.max(0, Math.floor(Number(disp.averageScore) || 0));
+      const jumperSkin = mission && mission.uiSkin === 'jumper';
+      if (jumperSkin) {
+        const sc = Math.max(0, Math.floor(Number(disp.survivorCount) || 0));
+        const pc = Math.max(0, Math.floor(Number(disp.participantCount) || 0));
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · ผู้รอด ' + sc + '/' + pc + ' → เกรด';
+      } else {
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · เฉลี่ย ' + avg + ' → เกรด';
+      }
+    }
+    if (gradeEl) {
+      const g = String(disp.grade || 'C').toUpperCase().charAt(0);
+      gradeEl.textContent = g;
+      gradeEl.className = 'gcm-grade gcm-grade--' + g.toLowerCase();
+    }
+    if (bonusEl) {
+      bonusEl.innerHTML = '';
+      const gLetter = String(disp.grade || 'C').toUpperCase().charAt(0);
+      const missionOk = gLetter !== 'F';
+      if (missionOk) {
+        const row = document.createElement('div');
+        row.style.display = 'flex';
+        row.style.alignItems = 'center';
+        row.style.gap = '8px';
+        const chk = document.createElement('img');
+        chk.src = BASE + '/img/gauntlet-assets/result-check.png';
+        chk.alt = '';
+        chk.width = 26;
+        chk.height = 26;
+        const sp = document.createElement('span');
+        sp.style.color = '#9ece6a';
+        sp.style.fontWeight = '700';
+        sp.textContent = 'ภารกิจสำเร็จ';
+        row.appendChild(chk);
+        row.appendChild(sp);
+        bonusEl.appendChild(row);
+      }
+      const rc = disp.rewardCard;
+      if (missionOk && rc && rc.th) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.innerHTML = '<strong>' + String(rc.th) + '</strong><span>' + String(rc.en || '') + '</span>';
+        bonusEl.appendChild(pl);
+      } else if (!missionOk) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.style.borderColor = 'rgba(148, 153, 168, 0.45)';
+        pl.style.opacity = '0.95';
+        pl.innerHTML = '<strong>ไม่ได้รับการ์ด</strong><span>เกรด ' + gLetter + ' · ภารกิจไม่ผ่านเกณฑ์</span>';
+        bonusEl.appendChild(pl);
+      }
+    }
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      ov.classList.add('is-hidden');
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = function () {
+        if (previewMode && editorEmbedReturn) {
+          ov.classList.add('is-hidden');
+          showQuizCarryTimeupOnDeskLayer(function () { return gauntletCrownEmbedMissionAnyOk(disp); });
+        } else {
+          goLobby();
+        }
+      };
+    }
+  }
+
+  function isLobby() { return mapData && mapData.gameType === 'lobby'; }
+  function isQuiz() { return mapData && mapData.gameType === 'quiz'; }
+  function getLane(y) {
+    if (!mapData || !mapData.lanes) return null;
+    const lane = mapData.lanes.find(l => l.y === y);
+    return lane || (mapData.lanes[y] != null ? mapData.lanes[y] : null);
+  }
+  function getVehiclePositions(lane, width, timeMs) {
+    if (!lane || (lane.type !== 'road' && lane.type !== 'water')) return [];
+    const speed = (lane.speed != null ? lane.speed : 1) * 0.05;
+    const dir = lane.dir === -1 ? -1 : 1;
+    const spacing = lane.spacing != null ? lane.spacing : (lane.type === 'road' ? 3 : 2.5);
+    const period = width + 2;
+    const count = Math.max(2, Math.floor(period / spacing));
+    const positions = [];
+    for (let i = 0; i < count; i++) {
+      const p = i * spacing + (timeMs * speed * dir) / 60;
+      const pNorm = ((p % period) + period) % period;
+      const vx = pNorm - 1;
+      positions.push(Math.max(-1, Math.min(width, vx)));
+    }
+    return positions;
+  }
+  function checkFroggerCollision() {
+    const fy = Math.floor(me.y);
+    const lane = getLane(fy);
+    if (!lane) return false;
+    if (lane.type === 'road') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.1) return true;
+      }
+    }
+    if (lane.type === 'water') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      let onLog = false;
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.2) { onLog = true; break; }
+      }
+      if (!onLog) return true;
+    }
+    return false;
+  }
+  function respawnFrogger() {
+    const sp = mapData.spawn || { x: 1, y: mapData.height - 1 };
+    me.x = sp.x; me.y = sp.y;
+    socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+  }
+
+  /** รองรับ x/y เป็น string จาก Socket — ถ้าเช็คแค่ typeof number จะร่วงไป mapData.spawn ทุกครั้ง (จุดเกิดไม่สุ่ม) */
+  function peerXYFromJoin(peer, spawnFb) {
+    const sx = Number(spawnFb && spawnFb.x);
+    const sy = Number(spawnFb && spawnFb.y);
+    const defX = Number.isFinite(sx) ? sx : 1;
+    const defY = Number.isFinite(sy) ? sy : 1;
+    if (!peer) return { x: defX, y: defY };
+    const x = Number(peer.x);
+    const y = Number(peer.y);
+    if (Number.isFinite(x) && Number.isFinite(y)) return { x, y };
+    return { x: defX, y: defY };
+  }
+
+  /** Hub = 0/1 · กริดตัวเลือก = 0 หรือเลข 1..16 (ห้ามบังคับ === 1 เหมือน hub — เลข 2–16จะหาย) */
+  function normalizeQuizCarryLayersInPlay(md) {
+    if (!md || md.gameType !== 'quiz_carry') return;
+    const w = md.width || 20, h = md.height || 15;
+    const maxOpt = QUIZ_CARRY_MAX_OPTION_SLOTS;
+    const srcHub = md.quizCarryHubArea || [];
+    const hubRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcHub[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      hubRows.push(row);
+    }
+    md.quizCarryHubArea = hubRows;
+    const srcOpt = md.quizCarryOptionArea || [];
+    const optRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcOpt[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= maxOpt ? Math.floor(n) : 0);
+      }
+      optRows.push(row);
+    }
+    md.quizCarryOptionArea = optRows;
+    const srcCd = md.carryEmbedCountdownArea || [];
+    const cdRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcCd[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        row.push(Number(v) === 1 ? 1 : 0);
+      }
+      cdRows.push(row);
+    }
+    md.carryEmbedCountdownArea = cdRows;
+  }
+
+  /** โดม = ช่องติดกัน (4 ทิศ) ต่อ 1 ข้อ · comp id เรียงตามการค้นพบบนแมป */
+  function normalizeQuizBattleDomeInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattleDomeArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattleDomeArea = grid;
+    const comp = Array(h).fill(0).map(() => Array(w).fill(0));
+    let nextId = 0;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (grid[y][x] !== 1 || comp[y][x]) continue;
+        nextId++;
+        const stack = [[x, y]];
+        comp[y][x] = nextId;
+        while (stack.length) {
+          const c = stack.pop();
+          const cx = c[0], cy = c[1];
+          for (let i = 0; i < 4; i++) {
+            const dx = (i === 0 ? 1 : i === 1 ? -1 : 0);
+            const dy = (i === 2 ? 1 : i === 3 ? -1 : 0);
+            const nx = cx + dx, ny = cy + dy;
+            if (nx < 0 || ny < 0 || nx >= w || ny >= h) continue;
+            if (grid[ny][nx] !== 1 || comp[ny][nx]) continue;
+            comp[ny][nx] = nextId;
+            stack.push([nx, ny]);
+          }
+        }
+      }
+    }
+    md.quizBattleDomeComp = comp;
+  }
+
+  /** เส้นทาง Quiz Battle — วาดอย่างน้อย 1 ช่องแล้วจะเดินได้เฉพาะบนเส้นทาง (เปลี่ยนแค่รูปพื้นหลังได้) */
+  function normalizeQuizBattlePathInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattlePathArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattlePathArea = grid;
+  }
+
+  function quizBattlePathModeActive(md) {
+    if (!md || md.gameType !== 'quiz_battle' || !md.quizBattlePathArea) return false;
+    const g = md.quizBattlePathArea;
+    for (let y = 0; y < g.length; y++) {
+      const row = g[y];
+      if (!row) continue;
+      for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+    }
+    return false;
+  }
+
+  function quizBattleFootprintFullyOnPath(md, px, py) {
+    if (!md || !quizBattlePathModeActive(md)) return true;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return false;
+    const tiles = quizTilesFootprintPlay(px, py);
+    if (tiles.size === 0) return false;
+    const g = md.quizBattlePathArea;
+    for (const k of tiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (!g[ty] || g[ty][tx] !== 1) return false;
+    }
+    return true;
+  }
+
+  /** สแน็ปบนเลน — เช็คแค่กำแพง + อยู่บน path (ให้ตรงกับ server) ไม่ใช้ blockPlayer/ผู้เล่นคนอื่น เพราะจะทำให้หาจุดสแน็ปไม่ได้แล้วค้างนอกเลน */
+  function quizBattleSnapTargetValidPlay(x, y) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    for (const k of quizTilesWallCollisionFootprintPlay(x, y)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (quizBattlePathModeActive(mapData) && !quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    return true;
+  }
+
+  function snapPositionOntoQuizBattlePathIfNeeded(px, py) {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return { x: px, y: py };
+    if (quizBattleSnapTargetValidPlay(px, py)) return { x: px, y: py };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const g = mapData.quizBattlePathArea;
+    let bestX = null, bestY = null, bestD = Infinity;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        const nx = tx + 0.01;
+        const ny = ty + 0.01;
+        if (!quizBattleSnapTargetValidPlay(nx, ny)) continue;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    /* footprint ใหญ่กว่าเลน (เช่น 2×2 บนทางแคบ 1 ช่อง): หาช่อง path ใกล้สุดที่เดินได้อย่างน้อยที่เซ็นเตอร์ — ดีกว่าปล่อยค้างนอกเลน */
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        if (!spawnTileWalkablePlay(mapData, tx, ty)) continue;
+        const nx = tx + 0.5;
+        const ny = ty + 0.5;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    return { x: px, y: py };
+  }
+
+  /** บังคับให้ผู้เล่นอยู่บนเลน — เรียกก่อน return กลาง tick (แชท / path หมด) เพราะเดิมข้ามบล็อกสแน็ปท้าย tick */
+  function enforceQuizBattleLaneOnMePlay() {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return;
+    if (quizBattleSnapTargetValidPlay(me.x, me.y)) return;
+    const snapped = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+    me.x = snapped.x;
+    me.y = snapped.y;
+  }
+
+  function hideQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function flashQuizBattleFeedback(text, ok) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.textContent = text || '';
+    el.classList.remove('is-hidden', 'play-quiz-feedback-ok', 'play-quiz-feedback-bad');
+    el.classList.add(ok ? 'play-quiz-feedback-ok' : 'play-quiz-feedback-bad');
+    if (typeof window.__quizBattleFbT === 'number') clearTimeout(window.__quizBattleFbT);
+    window.__quizBattleFbT = setTimeout(() => { el.classList.add('is-hidden'); }, 1800);
+  }
+
+  function getQuizBattleDomeCompIdsUnderFootprint(px, py) {
+    if (!mapData || !isQuizBattle()) return [];
+    const comp = mapData.quizBattleDomeComp;
+    const grid = mapData.quizBattleDomeArea;
+    if (!comp || !grid) return [];
+    const ids = [];
+    const seen = Object.create(null);
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const cid = comp[ty] && comp[ty][tx];
+      if (grid[ty] && grid[ty][tx] === 1 && cid > 0 && !seen[cid]) {
+        seen[cid] = 1;
+        ids.push(cid);
+      }
+    }
+    return ids;
+  }
+
+  function getPrimaryQuizBattleDomeCompAt(px, py) {
+    const arr = getQuizBattleDomeCompIdsUnderFootprint(px, py);
+    if (!arr.length) return null;
+    return Math.min.apply(null, arr);
+  }
+
+  function showQuizBattleMcqModal(q) {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    const textEl = document.getElementById('quiz-battle-mcq-text');
+    if (!ov || !textEl || !q) return;
+    textEl.textContent = q.text || '';
+    const labels = ['A', 'B', 'C'];
+    for (let i = 0; i < 3; i++) {
+      const btn = ov.querySelector('.quiz-battle-choice[data-idx="' + i + '"]');
+      if (btn) {
+        const ch = (q.choices && q.choices[i]) ? String(q.choices[i]) : '';
+        btn.textContent = labels[i] + (ch ? (': ' + ch.slice(0, 96)) : '');
+      }
+    }
+    ov.classList.remove('is-hidden');
+    ov.setAttribute('aria-hidden', 'false');
+  }
+
+  function trySubmitQuizBattleChoice(idx) {
+    if (quizBattleModalCompId == null || !mapData || !isQuizBattle()) return;
+    const compId = quizBattleModalCompId;
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถาม — ตั้ง battleQuizMcq ใน Admin → Quiz Battle', false);
+      quizBattleModalCompId = null;
+      hideQuizBattleMcqModal();
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    const ok = Number(q.correctIndex) === Number(idx);
+    if (ok) {
+      quizBattleAnsweredComps.add(compId);
+      if (myId != null) {
+        if (!playLiveQuizScores) playLiveQuizScores = {};
+        playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+        renderPlayQuizScoreboard(playLiveQuizScores);
+      }
+      /* ส่งให้ server เก็บคะแนน (authoritative) แล้ว broadcast อันดับให้ทุกคน — แบบ ZEP */
+      try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-solve', { compId }); } catch (e) { /* ignore */ }
+      updateQuizBattleProgressHud();
+      flashQuizBattleFeedback('ถูกต้อง · +1', true);
+    } else {
+      flashQuizBattleFeedback('ยังไม่ถูก — ลองใหม่ (กด E อีกครั้ง)', false);
+    }
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+  }
+
+  /** ZEP-style: เดินถึงสถานี (โดม) ที่ยังไม่ตอบ → เปิดคำถามอัตโนมัติ (ครั้งเดียวต่อการเข้า · เดินออกแล้วกลับมาใหม่ถึงเด้งอีก) */
+  function maybeAutoOpenQuizBattle() {
+    if (!isQuizBattle() || myId == null) return;
+    const compNow = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
+    if (compNow == null) { qbAutoLastComp = null; return; }
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    const modalOpen = quizBattleModalCompId != null || (ov && !ov.classList.contains('is-hidden'));
+    if (modalOpen) return;
+    if (compNow === qbAutoLastComp) return;          // เข้าโดมนี้รอบนี้ไปแล้ว
+    qbAutoLastComp = compNow;
+    if (quizBattleAnsweredComps.has(compNow)) return; // ตอบถูกแล้ว
+    const pool = quizBattleMcqPool;
+    if (!pool.length) return;
+    const q = pool[(compNow - 1) % pool.length];
+    if (!q) return;
+    quizBattleModalCompId = compNow;
+    showQuizBattleMcqModal(q);
+  }
+
+  function tryOpenQuizBattleFromKey() {
+    if (!isQuizBattle() || !mapData || myId == null) return;
+    const compId = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
+    if (compId == null) {
+      flashQuizBattleFeedback('ยังไม่ยืนบนโดมคำถาม', false);
+      return;
+    }
+    if (quizBattleAnsweredComps.has(compId)) {
+      flashQuizBattleFeedback('ตอบโดมนี้ถูกแล้ว', false);
+      return;
+    }
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถามในระบบ (Admin → Quiz Battle)', false);
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    quizBattleModalCompId = compId;
+    showQuizBattleMcqModal(q);
+  }
+
+  function pushSanitizedBattleMcqFromPayload(s) {
+    if (!s || !Array.isArray(s.battleQuizMcq)) return 0;
+    let n = 0;
+    for (let i = 0; i < s.battleQuizMcq.length; i++) {
+      const raw = s.battleQuizMcq[i];
+      if (!raw || !String(raw.text || '').trim()) continue;
+      const ch = Array.isArray(raw.choices) ? raw.choices : [];
+      if (ch.length !== 3) continue;
+      const a = String(ch[0] || '').trim();
+      const b = String(ch[1] || '').trim();
+      const c = String(ch[2] || '').trim();
+      if (!a || !b || !c) continue;
+      let ci = Number(raw.correctIndex);
+      if (!Number.isFinite(ci)) ci = 0;
+      ci = Math.max(0, Math.min(2, Math.floor(ci)));
+      quizBattleMcqPool.push({
+        text: String(raw.text).trim(),
+        choices: [a, b, c],
+        correctIndex: ci,
+      });
+      n++;
+    }
+    return n;
+  }
+
+  /**
+   * โหลดชุดข้อ A/B/C — ลอง Node ก่อน แล้ว fallback PHP อ่านจากดิสก์ (กรณี nginx ไม่ส่ง /api/quiz-settings ถึง Node)
+   */
+  async function loadQuizBattleMcqPool() {
+    quizBattleMcqPool = [];
+    const bust = '_=' + Date.now();
+    const tryUrls = [
+      BASE + '/api/quiz-settings?' + bust,
+      BASE + '/api-quiz-battle-mcq.php?' + bust,
+    ];
+    for (let u = 0; u < tryUrls.length; u++) {
+      try {
+        const r = await fetch(tryUrls[u], { cache: 'no-store' });
+        if (!r.ok) continue;
+        const s = await r.json();
+        if (pushSanitizedBattleMcqFromPayload(s) > 0) break;
+      } catch (e) { /* next url */ }
+    }
+  }
+
+  function resetQuizBattlePlayState() {
+    quizBattleMcqPool = [];
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+    hideQuizBattleProgressHud();
+  }
+
+  /* ===== Quiz Battle ฉากเดิน (ZEP) — Progress + Ranking sync จาก server ===== */
+  let quizBattleScoresBound = false;
+  function ensureQuizBattleScoresListener() {
+    if (quizBattleScoresBound || typeof socket === 'undefined' || !socket) return;
+    quizBattleScoresBound = true;
+    socket.on('quizbattle-scores', (data) => {
+      if (!data || typeof data.scores !== 'object' || !isQuizBattle()) return;
+      const sc = data.scores || {};
+      if (!playLiveQuizScores) playLiveQuizScores = {};
+      /* server เป็นเจ้าของคะแนน (จำนวนโดมที่ปลดได้) — sync ทับของทุกคน เพื่ออันดับตรงกันแบบ ZEP */
+      Object.keys(sc).forEach((id) => { playLiveQuizScores[id] = sc[id]; });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      updateQuizBattleProgressHud();
+    });
+  }
+
+  function quizBattleTotalDomes() {
+    if (!mapData || !isQuizBattle()) return 0;
+    const comp = mapData.quizBattleDomeComp;
+    if (!comp) return 0;
+    let mx = 0;
+    for (let y = 0; y < comp.length; y++) {
+      const row = comp[y] || [];
+      for (let x = 0; x < row.length; x++) if (row[x] > mx) mx = row[x];
+    }
+    return mx;
+  }
+
+  function updateQuizBattleProgressHud() {
+    if (!isQuizBattle()) return;
+    let el = document.getElementById('quiz-battle-progress-hud');
+    if (!el) {
+      el = document.createElement('div');
+      el.id = 'quiz-battle-progress-hud';
+      el.style.cssText = 'position:fixed;top:12px;left:12px;z-index:60;background:rgba(8,12,28,0.82);color:#fff;font-family:Kanit,Sarabun,system-ui,sans-serif;font-weight:700;padding:8px 18px;border-radius:999px;border:1px solid rgba(255,255,255,0.2);font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,0.35);pointer-events:none';
+      document.body.appendChild(el);
+    }
+    const total = quizBattleTotalDomes();
+    const mine = (myId != null && playLiveQuizScores && playLiveQuizScores[myId] != null)
+      ? playLiveQuizScores[myId]
+      : (quizBattleAnsweredComps ? quizBattleAnsweredComps.size : 0);
+    el.textContent = 'Progress ' + mine + '/' + total + (total > 0 && mine >= total ? ' ✓' : '');
+    el.style.color = (total > 0 && mine >= total) ? '#34d399' : '#fff';
+  }
+
+  function hideQuizBattleProgressHud() {
+    const el = document.getElementById('quiz-battle-progress-hud');
+    if (el) el.remove();
+  }
+
+  function setupPlayQuizBattleUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    /* ทดสอบจากเอดิเตอร์: อย่าเปิดแผงคำถามเต็มจอล่าง — บังมองเห็นบอท/แผนที่ (overlay ยังอัปเดตข้อความไว้ถ้าเปิด preview แบบไม่ embed) */
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'Quiz Battle';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = 'เดินทับโดม (สีฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C';
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = quizBattlePathModeActive(mapData)
+        ? 'โหมดเส้นทาง: เดินได้เฉพาะช่องเส้นทาง (ม่วงบนแผนที่) — วางโดมบนเส้นทาง · ไม่วาดเส้นทางใน Editor = เดินอิสระ · เปลี่ยนรูปพื้นหลังได้ทีหลัง'
+        : 'คำถามจาก Admin → Quiz Battle (battleQuizMcq) · ช่องโดมติดกัน = 1 ข้อ · ถูกแล้วได้ +1 ต่อโดม';
+    }
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    quizBattleMcqPool = [];
+    hideQuizBattleMcqModal();
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    /* sync คะแนน/อันดับข้ามผู้เล่นจาก server (ZEP) + โชว์ Progress N/total */
+    ensureQuizBattleScoresListener();
+    updateQuizBattleProgressHud();
+    try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-hello', (res) => {
+      if (res && res.scores && typeof res.scores === 'object') {
+        Object.keys(res.scores).forEach((id) => { playLiveQuizScores[id] = res.scores[id]; });
+        renderPlayQuizScoreboard(playLiveQuizScores);
+        updateQuizBattleProgressHud();
+      }
+    }); } catch (e) { /* ignore */ }
+    loadQuizBattleMcqPool().then(() => {
+      const q2 = document.getElementById('quiz-game-question');
+      if (!q2) return;
+      if (!quizBattleMcqPool.length) {
+        q2.textContent = 'ยังไม่มีคำถาม — ไปที่ Admin แท็บ Quiz Battle แล้วบันทึกข้อ A/B/C (ครบคำถาม + A + B + C) · หรือเช็คว่าเซิร์ฟเวอร์เกม (Node) รันอยู่ · ลองรีเฟรชแบบ hard refresh (Ctrl+F5)';
+      } else {
+        const q0 = quizBattleMcqPool[0];
+        const snippet = q0 && q0.text ? String(q0.text).trim().slice(0, 100) : '';
+        const more = q0 && q0.text && String(q0.text).trim().length > 100 ? '…' : '';
+        q2.textContent = snippet
+          ? ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ · ตัวอย่าง: 「' + snippet + more + '」\nเข้าโดมสีฟ้า (ขอบแดง) แล้วกด E เพื่อเลือก A / B / C')
+          : ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ — เดินเข้าโดม (ฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C');
+      }
+      const ov2 = document.getElementById('quiz-game-overlay');
+      if (ov2 && previewMode && editorEmbedReturn) ov2.classList.add('is-hidden');
+    });
+  }
+
+  function normalizeJumpSurvivePlatformAreaInPlay(md) {
+    if (!md || md.gameType !== 'jump_survive') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.jumpSurvivePlatformArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      rows.push(row);
+    }
+    md.jumpSurvivePlatformArea = rows;
+  }
+
+  function normalizeShooterSpawnSlotsInPlay(md) {
+    if (!md || md.gameType !== 'space_shooter') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.shooterSpawnSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.shooterSpawnSlots = rows;
+  }
+
+  function getShooterSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.shooterSpawnSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.shooterSpawnSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function buildSpaceShooterParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function applySpaceShooterSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    normalizeShooterSpawnSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const n = refs.length || 1;
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getShooterSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        cx = ((idx + 1) / (n + 1)) * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.5) * ts);
+      }
+      cx = Math.max(ts * 0.5, Math.min(mw - ts * 0.5, cx));
+      cy = clampSpaceShooterWorldCy(cy, mh);
+      ent.spaceShooterCx = cx;
+      ent.spaceShooterCy = cy;
+      if (typeof ent.spaceShooterScore !== 'number' || !Number.isFinite(ent.spaceShooterScore)) ent.spaceShooterScore = 0;
+      ent.x = cx / ts - cw * 0.5;
+      ent.y = cy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function spaceShooterTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.spaceShooterTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    const g = Number(playSpaceShooterMissionTimeSec);
+    if (Number.isFinite(g) && g > 0 && g < 7200) return Math.floor(g);
+    return 90;
+  }
+
+  function spaceShooterRemainingSecPlay() {
+    const lim = spaceShooterTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - spaceShooterSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function endSpaceShooterTimeUp() {
+    if (spaceShooterGameEnded || !mapData || mapData.gameType !== 'space_shooter') return;
+    spaceShooterGameEnded = true;
+    spaceShooterBullets = [];
+    spaceShooterAsteroids = [];
+    spaceShooterSpawnAccMs = 0;
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'หมดเวลา · Time up';
+    msgEl.textContent = 'ยิงยานอวกาศจบแล้ว · SPACE SHOOTER finished — อันดับจากคะแนนยิงหิน';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.spaceShooterScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.spaceShooterScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function syncSpaceShooterFootFromShipCenter(ent) {
+    if (!ent || !mapData || ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.spaceShooterCx / ts - cw * 0.5;
+    ent.y = ent.spaceShooterCy / ts - ch * 0.92;
+  }
+
+  /** จำกัดกลางยานแนวตั้งให้อยู่แค่ครึ่งล่างของแมพ (ไม่ขึ้นเกินกึ่งกลางความสูง) */
+  function clampSpaceShooterWorldCy(cy, mhPx) {
+    if (!Number.isFinite(cy) || !Number.isFinite(mhPx) || mhPx <= 0) return cy;
+    const edge = 20;
+    const lo = mhPx * 0.5;
+    const hi = Math.max(lo + 4, mhPx - edge);
+    return Math.max(lo, Math.min(hi, cy));
+  }
+
+  function stepSpaceShooterPreviewBots(dt) {
+    if (spaceShooterGameEnded || !previewFillBots || !mapData || mapData.gameType !== 'space_shooter') return;
+    const ts = tileSize;
+    const mw = (mapData.width || 20) * ts;
+    const mh = (mapData.height || 15) * ts;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.spaceShooterCx == null) return;
+      let nearest = null, nd = 1e9;
+      for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+        const a = spaceShooterAsteroids[i];
+        if (!a) continue;
+        const d = Math.abs(a.x - o.spaceShooterCx) + Math.abs(a.y - o.spaceShooterCy) * 0.15;
+        if (d < nd) { nd = d; nearest = a; }
+      }
+      let vx = 0;
+      if (nearest) vx = nearest.x > o.spaceShooterCx ? 1 : nearest.x < o.spaceShooterCx ? -1 : 0;
+      else vx = Math.sin(performance.now() / 900 + bid.length) > 0 ? 1 : -1;
+      let vy = 0;
+      if (nearest && Math.abs(nearest.y - o.spaceShooterCy) > ts * 0.25) {
+        vy = nearest.y > o.spaceShooterCy ? 1 : -1;
+      } else if (!nearest) {
+        vy = Math.sin(performance.now() / 700 + bid.charCodeAt(0)) > 0 ? 1 : -1;
+      }
+      const spd = (o.botTier === 'sharp' ? 195 : o.botTier === 'weak' ? 115 : 155);
+      o.spaceShooterCx = Math.max(18, Math.min(mw - 18, o.spaceShooterCx + vx * spd * dt));
+      o.spaceShooterCy = clampSpaceShooterWorldCy(o.spaceShooterCy + vy * spd * 0.7 * dt, mh);
+      syncSpaceShooterFootFromShipCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.spaceShooterBotFireCd !== 'number') o.spaceShooterBotFireCd = 0;
+      o.spaceShooterBotFireCd -= dt;
+      if (o.spaceShooterBotFireCd <= 0 && nearest && nd < ts * 5) {
+        o.spaceShooterBotFireCd = o.botTier === 'sharp' ? 0.22 : o.botTier === 'weak' ? 0.48 : 0.34;
+        spaceShooterBullets.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 16, vy: -500, ownerId: bid });
+      }
+    });
+  }
+
+  function spaceShooterTickFrame() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const now = performance.now();
+    const dt = Math.min(0.055, spaceShooterLastTickMs ? (now - spaceShooterLastTickMs) / 1000 : 0.016);
+    spaceShooterLastTickMs = now;
+
+    if (spaceShooterGameEnded) {
+      const wallClock = Date.now();
+      for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+        if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+      }
+      return;
+    }
+    const remSec = spaceShooterRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endSpaceShooterTimeUp();
+      return;
+    }
+
+    const interval = Math.max(320, Number(mapData.spaceShooterAsteroidIntervalMs) || 1040);
+    spaceShooterSpawnAccMs += dt * 1000;
+    while (spaceShooterSpawnAccMs >= interval) {
+      spaceShooterSpawnAccMs -= interval;
+      spaceShooterAsteroids.push({
+        x: 36 + Math.random() * (mw - 72),
+        y: -45 - Math.random() * 90,
+        r: 13 + Math.random() * 17,
+        vy: 58 + Math.random() * 62,
+        hp: 1,
+      });
+    }
+
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.28;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.28;
+      o.spaceShooterCx = (o.x + cw * 0.5) * ts;
+      o.spaceShooterCy = clampSpaceShooterWorldCy((o.y + ch * 0.92) * ts, mh);
+    });
+
+    let vx = 0;
+    let vy = 0;
+    if (!isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) vx -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) vx += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) vy -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) vy += 1;
+    }
+    const moveSpd = 280;
+    if (me.spaceShooterCx != null) {
+      me.spaceShooterCx = Math.max(18, Math.min(mw - 18, me.spaceShooterCx + vx * moveSpd * dt));
+    }
+    if (me.spaceShooterCy != null) {
+      me.spaceShooterCy = clampSpaceShooterWorldCy(me.spaceShooterCy + vy * moveSpd * dt, mh);
+    }
+    syncSpaceShooterFootFromShipCenter(me);
+
+    spaceShooterFireCd -= dt;
+    const fireHeld = !isChatFocused() && !!keys['Space'];
+    if (fireHeld && spaceShooterFireCd <= 0 && me.spaceShooterCy != null) {
+      spaceShooterFireCd = 0.21;
+      spaceShooterBullets.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 20, vy: -580, ownerId: myId });
+    }
+
+    stepSpaceShooterPreviewBots(dt);
+
+    for (let i = spaceShooterBullets.length - 1; i >= 0; i--) {
+      const b = spaceShooterBullets[i];
+      b.y += b.vy * dt;
+      if (b.y < -50 || b.x < -30 || b.x > mw + 30) spaceShooterBullets.splice(i, 1);
+    }
+    for (let ai = spaceShooterAsteroids.length - 1; ai >= 0; ai--) {
+      const a = spaceShooterAsteroids[ai];
+      a.y += a.vy * dt;
+      if (a.y > mh + 100) spaceShooterAsteroids.splice(ai, 1);
+    }
+
+    for (let bi = spaceShooterBullets.length - 1; bi >= 0; bi--) {
+      const b = spaceShooterBullets[bi];
+      let hit = -1;
+      for (let ai = 0; ai < spaceShooterAsteroids.length; ai++) {
+        const a = spaceShooterAsteroids[ai];
+        const dx = b.x - a.x, dy = b.y - a.y;
+        const rr = (a.r + 7) * (a.r + 7);
+        if (dx * dx + dy * dy <= rr) { hit = ai; break; }
+      }
+      if (hit >= 0) {
+        const a = spaceShooterAsteroids[hit];
+        a.hp = (a.hp || 1) - 1;
+        spaceShooterBullets.splice(bi, 1);
+        if (a.hp <= 0) {
+          spaceShooterAsteroids.splice(hit, 1);
+          const add = 5;
+          if (b.ownerId === myId) {
+            me.spaceShooterScore = Math.max(0, (me.spaceShooterScore || 0) + add);
+            spaceShooterPopups.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+          } else {
+            const o = others.get(b.ownerId);
+            if (o) {
+              o.spaceShooterScore = Math.max(0, (o.spaceShooterScore || 0) + add);
+              spaceShooterPopups.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+            }
+          }
+        }
+      }
+    }
+
+    const wallClock = Date.now();
+    for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+      /* until ใช้ Date.now() — ห้ามเทียบกับ performance.now() (สเกลคนละระบบ → ลบไม่ออก) */
+      if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+    }
+
+    me.direction = 'up';
+    me.isWalking = vx !== 0 || vy !== 0;
+    const tEmit = Date.now();
+    if (tEmit - spaceShooterLastMoveEmit > 90 && socket && myId != null) {
+      spaceShooterLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        spaceShooterScore: Math.max(0, me.spaceShooterScore | 0),
+      });
+    }
+  }
+
+  function drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isSpaceShooter()) return;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const wallNow = typeof timeMs === 'number' ? timeMs : Date.now();
+
+    for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+      const a = spaceShooterAsteroids[i];
+      const [sx, sy] = worldToScreen(a.x, a.y);
+      const sr = Math.max(6, a.r * zDraw);
+      const grd = ctx.createRadialGradient(sx - sr * 0.25, sy - sr * 0.25, sr * 0.1, sx, sy, sr);
+      grd.addColorStop(0, 'rgba(90, 85, 95, 0.95)');
+      grd.addColorStop(0.55, 'rgba(35, 32, 42, 0.98)');
+      grd.addColorStop(1, 'rgba(18, 16, 24, 1)');
+      ctx.fillStyle = grd;
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr, 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 90, 60, 0.75)';
+      ctx.lineWidth = Math.max(1.5, zDraw * 1.2);
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr * 0.88, 0.6, 1.9);
+      ctx.stroke();
+      ctx.beginPath();
+      ctx.arc(sx + sr * 0.15, sy + sr * 0.1, sr * 0.35, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowColor = 'rgba(255, 60, 40, 0.55)';
+      ctx.shadowBlur = sr * 0.45;
+      ctx.strokeStyle = 'rgba(255, 120, 80, 0.35)';
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr + 3 * zDraw, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+
+    for (let i = 0; i < spaceShooterBullets.length; i++) {
+      const b = spaceShooterBullets[i];
+      for (let k = 0; k < 4; k++) {
+        const t = k / 4;
+        const yy = b.y + t * 22;
+        const [bx, by] = worldToScreen(b.x, yy);
+        ctx.fillStyle = `rgba(255, ${180 - k * 35}, ${80 - k * 15}, ${0.95 - k * 0.18})`;
+        ctx.beginPath();
+        ctx.arc(bx, by, Math.max(2, 3.2 * zDraw - k * 0.4), 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+      const [sx, sy] = worldToScreen(ent.spaceShooterCx, ent.spaceShooterCy);
+      const col = SPACE_SHOOTER_SHIP_COLORS[idx % SPACE_SHOOTER_SHIP_COLORS.length];
+      const bodyW = 14 * zDraw;
+      const bodyH = 22 * zDraw;
+      ctx.save();
+      ctx.translate(sx, sy);
+      ctx.fillStyle = col;
+      ctx.strokeStyle = 'rgba(180, 255, 255, 0.85)';
+      ctx.lineWidth = Math.max(1.2, zDraw);
+      ctx.beginPath();
+      ctx.moveTo(0, -bodyH * 0.55);
+      ctx.lineTo(-bodyW * 0.55, bodyH * 0.42);
+      ctx.lineTo(0, bodyH * 0.22);
+      ctx.lineTo(bodyW * 0.55, bodyH * 0.42);
+      ctx.closePath();
+      ctx.fill();
+      ctx.stroke();
+      ctx.fillStyle = 'rgba(255, 220, 120, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(-bodyW * 0.22, bodyH * 0.38);
+      ctx.lineTo(0, bodyH * 0.72);
+      ctx.lineTo(bodyW * 0.22, bodyH * 0.38);
+      ctx.closePath();
+      ctx.fill();
+      ctx.restore();
+      const name = (ent.nickname || '').slice(0, 10);
+      if (name) {
+        ctx.font = `${Math.max(9, 10 * zDraw)}px system-ui, "Kanit", sans-serif`;
+        ctx.textAlign = 'center';
+        ctx.fillStyle = 'rgba(224, 242, 255, 0.92)';
+        ctx.strokeStyle = 'rgba(0, 20, 40, 0.85)';
+        ctx.lineWidth = 3;
+        ctx.strokeText(name, sx, sy - bodyH * 0.62);
+        ctx.fillText(name, sx, sy - bodyH * 0.62);
+        ctx.textAlign = 'left';
+      }
+    });
+
+    for (let i = 0; i < spaceShooterPopups.length; i++) {
+      const p = spaceShooterPopups[i];
+      if (wallNow >= p.until) continue;
+      const [px, py] = worldToScreen(p.x, p.y);
+      const dur = 700;
+      const age = 1 - Math.max(0, Math.min(1, (p.until - wallNow) / dur));
+      ctx.save();
+      ctx.globalAlpha = Math.max(0, 1 - age * 0.92);
+      ctx.font = `bold ${Math.max(12, 16 * zDraw)}px Orbitron, ui-sans-serif, sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = '#ffe066';
+      ctx.strokeStyle = 'rgba(120, 60, 0, 0.6)';
+      ctx.lineWidth = 3;
+      ctx.strokeText(p.text || '+5', px, py - age * 18);
+      ctx.fillText(p.text || '+5', px, py - age * 18);
+      ctx.restore();
+    }
+  }
+
+  const BALLOON_BOSS_PLAYER_COLORS = ['#ff79c6', '#7aa2f7', '#f9e2af', '#f7768e', '#9ece6a', '#bb9af7'];
+
+  function normalizeBalloonBossPlayerSlotsInPlay(md) {
+    if (!md || md.gameType !== 'balloon_boss') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.balloonBossPlayerSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.balloonBossPlayerSlots = rows;
+  }
+
+  function getBalloonBossPlayerSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.balloonBossPlayerSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.balloonBossPlayerSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function getBalloonBossBossWorldCenterPlay(md, ts) {
+    const bx = md && md.balloonBossBossSpawn;
+    if (bx && Number.isFinite(Number(bx.x)) && Number.isFinite(Number(bx.y))) {
+      return { cx: (Number(bx.x) + 0.5) * ts, cy: (Number(bx.y) + 0.5) * ts };
+    }
+    const w = md.width || 20, h = md.height || 15;
+    return { cx: (w * 0.5) * ts, cy: (h * 0.38) * ts };
+  }
+
+  function buildBalloonBossParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function balloonBossBalloonsStartPlay() {
+    const n = Number(mapData && mapData.balloonBossBalloonsPerPlayer);
+    return Math.max(1, Math.min(12, Number.isFinite(n) ? Math.floor(n) : 5));
+  }
+
+  function balloonBossMaxHpPlay() {
+    const n = Number(mapData && mapData.balloonBossMaxHp);
+    return Math.max(20, Math.min(9999, Number.isFinite(n) ? Math.floor(n) : 100));
+  }
+
+  function balloonBossFireDelayMsPlay() {
+    const n = Number(mapData && mapData.balloonBossFireDelayMs);
+    return Math.max(120, Math.min(2000, Number.isFinite(n) ? Math.floor(n) : 380));
+  }
+
+  /** ความเร่งยาน (px/s²) — ต่ำ = คุมยาก ลื่น */
+  function balloonBossShipAccelPlay() {
+    const n = Number(mapData && mapData.balloonBossShipAccel);
+    return Math.max(80, Math.min(520, Number.isFinite(n) ? n : 210));
+  }
+
+  /** ความเร็วสูงสุดยาน (px/s) */
+  function balloonBossShipMaxSpeedPlay() {
+    const n = Number(mapData && mapData.balloonBossShipMaxSpeed);
+    return Math.max(60, Math.min(320, Number.isFinite(n) ? n : 158));
+  }
+
+  /** แรงหน่วงต่อวินาที (velocity *= 1 - min(1, drag*dt)) — สูง = หยุดเร็วขึ้น */
+  function balloonBossShipDragPlay() {
+    const n = Number(mapData && mapData.balloonBossShipDrag);
+    return Math.max(0.4, Math.min(6, Number.isFinite(n) ? n : 1.65));
+  }
+
+  function balloonBossTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.balloonBossTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    return 120;
+  }
+
+  function balloonBossRemainingSecPlay() {
+    const lim = balloonBossTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - balloonBossSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function balloonBossTeamDamagePlay() {
+    let s = Math.max(0, me.balloonBossScore | 0);
+    others.forEach((o) => { s += Math.max(0, o.balloonBossScore | 0); });
+    return s;
+  }
+
+  function syncBalloonBossFootFromCenter(ent) {
+    if (!ent || !mapData || ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.balloonBossCx / ts - cw * 0.5;
+    ent.y = ent.balloonBossCy / ts - ch * 0.92;
+  }
+
+  function clampBalloonBossWorld(cx, cy, mw, mh) {
+    const e = 22;
+    return {
+      cx: Math.max(e, Math.min(mw - e, cx)),
+      cy: Math.max(e, Math.min(mh - e, cy)),
+    };
+  }
+
+  function applyBalloonBossSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    normalizeBalloonBossPlayerSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const n = refs.length || 1;
+    const bStart = balloonBossBalloonsStartPlay();
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getBalloonBossPlayerSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        const t = (idx + 1) / (n + 1);
+        cx = t * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.2) * ts);
+      }
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      ent.balloonBossCx = cl.cx;
+      ent.balloonBossCy = cl.cy;
+      if (typeof ent.balloonBossScore !== 'number' || !Number.isFinite(ent.balloonBossScore)) ent.balloonBossScore = 0;
+      if (typeof ent.balloonBossBalloons !== 'number' || !Number.isFinite(ent.balloonBossBalloons)) ent.balloonBossBalloons = bStart;
+      if (typeof ent.balloonBossHitIframe !== 'number') ent.balloonBossHitIframe = 0;
+      ent.balloonBossVelX = 0;
+      ent.balloonBossVelY = 0;
+      ent.x = ent.balloonBossCx / ts - cw * 0.5;
+      ent.y = ent.balloonBossCy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function endBalloonBossGame(reason) {
+    if (balloonBossGameEnded || !mapData || mapData.gameType !== 'balloon_boss') return;
+    balloonBossGameEnded = true;
+    balloonBossPendingShots = [];
+    balloonBossPlayerBullets = [];
+    balloonBossBossBullets = [];
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = reason === 'victory' ? 'ชนะบอส! · Boss defeated' : 'หมดเวลา · Time up';
+    }
+    msgEl.textContent = reason === 'victory'
+      ? 'MEGA VIRUS ถูกกำจัดแล้ว — อันดับจากความเสียหายที่ทำกับบอส'
+      : 'หมดเวลา — อันดับจากความเสียหายที่ทำกับบอส';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.balloonBossScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.balloonBossScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — DMG ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function stepBalloonBossPreviewBots(dt, mw, mh, bossCx, bossCy, ts) {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'balloon_boss') return;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.balloonBossEliminated || o.balloonBossCx == null) return;
+      const wob = Math.sin(performance.now() / 800 + bid.length) * 0.55;
+      const wob2 = Math.cos(performance.now() / 1100 + bid.charCodeAt(0)) * 0.45;
+      const spd = 48;
+      let nx = o.balloonBossCx + wob * spd * dt;
+      let ny = o.balloonBossCy + wob2 * spd * 0.72 * dt;
+      const cl = clampBalloonBossWorld(nx, ny, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+      syncBalloonBossFootFromCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.balloonBossBotNextFire === 'number') o.balloonBossBotNextFire -= dt;
+      else o.balloonBossBotNextFire = 0.8 + Math.random() * 0.9;
+      if (o.balloonBossBotNextFire <= 0) {
+        o.balloonBossBotNextFire = 0.9 + Math.random() * 1.1;
+        const delayMs = balloonBossFireDelayMsPlay();
+        const dx = bossCx - o.balloonBossCx, dy = bossCy - o.balloonBossCy;
+        const d = Math.sqrt(dx * dx + dy * dy) || 1;
+        balloonBossPendingShots.push({
+          releaseAt: performance.now() + delayMs,
+          sx: o.balloonBossCx, sy: o.balloonBossCy,
+          vx: (dx / d) * 520, vy: (dy / d) * 520,
+          ownerId: bid,
+        });
+      }
+    });
+  }
+
+  function balloonBossTickFrame() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (!o || o.balloonBossEliminated) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.24;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.24;
+      const cx = (o.x + cw * 0.5) * ts;
+      const cy = (o.y + ch * 0.92) * ts;
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+    });
+    const now = performance.now();
+    const dt = Math.min(0.055, balloonBossLastTickMs ? (now - balloonBossLastTickMs) / 1000 : 0.016);
+    balloonBossLastTickMs = now;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const bossR = Math.max(36, ts * 1.15);
+    const maxHp = balloonBossMaxHpPlay();
+    const teamDmg = balloonBossTeamDamagePlay();
+
+    if (me.balloonBossEliminated) {
+      me.balloonBossVelX = 0;
+      me.balloonBossVelY = 0;
+    }
+    if (balloonBossGameEnded) {
+      for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+        balloonBossHitFx[hi].t -= dt;
+        if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+      }
+      return;
+    }
+    const remSec = balloonBossRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endBalloonBossGame('time');
+      return;
+    }
+    if (teamDmg >= maxHp) {
+      endBalloonBossGame('victory');
+      return;
+    }
+
+    for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+      balloonBossHitFx[hi].t -= dt;
+      if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+    }
+
+    const aliveRefs = buildBalloonBossParticipantRefsPlay().filter((e) => e.ref && !e.ref.balloonBossEliminated);
+
+    for (let pi = balloonBossPendingShots.length - 1; pi >= 0; pi--) {
+      const pnd = balloonBossPendingShots[pi];
+      if (now >= pnd.releaseAt) {
+        balloonBossPlayerBullets.push({ x: pnd.sx, y: pnd.sy, vx: pnd.vx, vy: pnd.vy, ownerId: pnd.ownerId });
+        balloonBossPendingShots.splice(pi, 1);
+      }
+    }
+
+    const bossFireEvery = 0.92;
+    balloonBossBossFireAcc += dt;
+    while (balloonBossBossFireAcc >= bossFireEvery) {
+      balloonBossBossFireAcc -= bossFireEvery;
+      if (aliveRefs.length) {
+        const wave = Math.floor(now / 1000);
+        const tgt = aliveRefs[wave % aliveRefs.length].ref;
+        if (tgt && tgt.balloonBossCx != null) {
+          const dx = tgt.balloonBossCx - bossC.cx, dy = tgt.balloonBossCy - bossC.cy;
+          const d = Math.sqrt(dx * dx + dy * dy) || 1;
+          const spd = 290;
+          balloonBossBossBullets.push({ x: bossC.cx, y: bossC.cy, vx: (dx / d) * spd, vy: (dy / d) * spd });
+        }
+      }
+    }
+
+    function applyBalloonBossHitToEntity(ent) {
+      if (!ent || ent.balloonBossEliminated) return;
+      if (ent.balloonBossHitIframe > now) return;
+      ent.balloonBossHitIframe = now + 520;
+      ent.balloonBossBalloons = Math.max(0, (ent.balloonBossBalloons | 0) - 1);
+      if (ent.balloonBossBalloons <= 0) {
+        ent.balloonBossEliminated = true;
+        ent.balloonBossBalloons = 0;
+      }
+      if (ent === me && socket) {
+        socket.emit('move', {
+          x: me.x, y: me.y, direction: me.direction,
+          balloonBossBalloons: me.balloonBossBalloons,
+          balloonBossEliminated: !!me.balloonBossEliminated,
+          balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        });
+      }
+    }
+
+    for (let bi = balloonBossBossBullets.length - 1; bi >= 0; bi--) {
+      const b = balloonBossBossBullets[bi];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -80 || b.x > mw + 80 || b.y < -80 || b.y > mh + 80) {
+        balloonBossBossBullets.splice(bi, 1);
+        continue;
+      }
+      let hit = false;
+      aliveRefs.forEach((entry) => {
+        if (hit) return;
+        const ent = entry.ref;
+        if (!ent || ent.balloonBossCx == null) return;
+        const dx = b.x - ent.balloonBossCx, dy = b.y - ent.balloonBossCy;
+        if (dx * dx + dy * dy <= (26 * 26)) {
+          hit = true;
+          applyBalloonBossHitToEntity(ent);
+        }
+      });
+      if (hit) balloonBossBossBullets.splice(bi, 1);
+    }
+
+    for (let i = balloonBossPlayerBullets.length - 1; i >= 0; i--) {
+      const b = balloonBossPlayerBullets[i];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -60 || b.x > mw + 60 || b.y < -60 || b.y > mh + 60) {
+        balloonBossPlayerBullets.splice(i, 1);
+        continue;
+      }
+      const dx = b.x - bossC.cx, dy = b.y - bossC.cy;
+      if (dx * dx + dy * dy <= bossR * bossR) {
+        balloonBossHitFx.push({ x: bossC.cx, y: bossC.cy, t: 0.22 });
+        const add = 1;
+        if (b.ownerId === myId) {
+          me.balloonBossScore = Math.max(0, (me.balloonBossScore | 0) + add);
+        } else {
+          const o = others.get(b.ownerId);
+          if (o) o.balloonBossScore = Math.max(0, (o.balloonBossScore | 0) + add);
+        }
+        balloonBossPlayerBullets.splice(i, 1);
+      }
+    }
+
+    let inX = 0, inY = 0;
+    if (!me.balloonBossEliminated && !isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) inX -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) inX += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) inY -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) inY += 1;
+    }
+    const accel = balloonBossShipAccelPlay();
+    const maxSpd = balloonBossShipMaxSpeedPlay();
+    const dragPerSec = balloonBossShipDragPlay();
+    if (typeof me.balloonBossVelX !== 'number' || !Number.isFinite(me.balloonBossVelX)) me.balloonBossVelX = 0;
+    if (typeof me.balloonBossVelY !== 'number' || !Number.isFinite(me.balloonBossVelY)) me.balloonBossVelY = 0;
+    let nvx = me.balloonBossVelX;
+    let nvy = me.balloonBossVelY;
+    if (inX !== 0 || inY !== 0) {
+      const il = Math.sqrt(inX * inX + inY * inY) || 1;
+      nvx += (inX / il) * accel * dt;
+      nvy += (inY / il) * accel * dt;
+    }
+    const drag = Math.min(1, dragPerSec * dt);
+    nvx *= (1 - drag);
+    nvy *= (1 - drag);
+    const curSpd = Math.sqrt(nvx * nvx + nvy * nvy);
+    if (curSpd > maxSpd) {
+      const s = maxSpd / curSpd;
+      nvx *= s;
+      nvy *= s;
+    }
+    me.balloonBossVelX = nvx;
+    me.balloonBossVelY = nvy;
+    if (!me.balloonBossEliminated && me.balloonBossCx != null) {
+      const ncx = me.balloonBossCx + nvx * dt;
+      const ncy = me.balloonBossCy + nvy * dt;
+      const cl = clampBalloonBossWorld(ncx, ncy, mw, mh);
+      if (Math.abs(cl.cx - ncx) > 0.5) me.balloonBossVelX = 0;
+      if (Math.abs(cl.cy - ncy) > 0.5) me.balloonBossVelY = 0;
+      me.balloonBossCx = cl.cx;
+      me.balloonBossCy = cl.cy;
+    }
+    syncBalloonBossFootFromCenter(me);
+    me.direction = 'up';
+    me.isWalking = Math.abs(me.balloonBossVelX) > 8 || Math.abs(me.balloonBossVelY) > 8 || inX !== 0 || inY !== 0;
+
+    balloonBossPlayerFireCd -= dt;
+    const wantFire = !isChatFocused() && !!keys['Space'] && !me.balloonBossEliminated;
+    if (wantFire && balloonBossPlayerFireCd <= 0 && me.balloonBossCy != null) {
+      balloonBossPlayerFireCd = 0.35;
+      const delayMs = balloonBossFireDelayMsPlay();
+      const dx = bossC.cx - me.balloonBossCx, dy = bossC.cy - me.balloonBossCy;
+      const d = Math.sqrt(dx * dx + dy * dy) || 1;
+      balloonBossPendingShots.push({
+        releaseAt: now + delayMs,
+        sx: me.balloonBossCx, sy: me.balloonBossCy,
+        vx: (dx / d) * 480, vy: (dy / d) * 480,
+        ownerId: myId,
+      });
+    }
+
+    stepBalloonBossPreviewBots(dt, mw, mh, bossC.cx, bossC.cy, ts);
+
+    const tEmit = Date.now();
+    if (tEmit - balloonBossLastMoveEmit > 95 && socket && myId != null) {
+      balloonBossLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        balloonBossBalloons: Math.max(0, me.balloonBossBalloons | 0),
+        balloonBossEliminated: !!me.balloonBossEliminated,
+      });
+    }
+  }
+
+  function drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isBalloonBoss()) return;
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const mw = w * ts, mh = h * ts;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const maxHp = balloonBossMaxHpPlay();
+    const dmg = balloonBossTeamDamagePlay();
+    const hpLeft = Math.max(0, maxHp - dmg);
+    const bossR = Math.max(36, ts * 1.15);
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const leaderId = (() => {
+      let best = null, bs = -1;
+      refs.forEach((e) => {
+        const sc = Math.max(0, e.ref.balloonBossScore | 0);
+        if (sc > bs) { bs = sc; best = e.id; }
+      });
+      return best;
+    })();
+
+    for (let hi = 0; hi < balloonBossHitFx.length; hi++) {
+      const fx = balloonBossHitFx[hi];
+      const [hx, hy] = worldToScreen(fx.x, fx.y);
+      const pulse = 1 + (fx.t || 0) * 3;
+      ctx.save();
+      ctx.globalAlpha = Math.min(1, (fx.t || 0) * 4);
+      ctx.strokeStyle = 'rgba(255, 220, 120, 0.9)';
+      ctx.lineWidth = 3 * zDraw;
+      ctx.beginPath();
+      ctx.arc(hx, hy, bossR * zDraw * 0.5 * pulse, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.restore();
+    }
+
+    const [bsx, bsy] = worldToScreen(bossC.cx, bossC.cy);
+    ctx.save();
+    ctx.translate(bsx, bsy);
+    ctx.strokeStyle = 'rgba(0, 255, 255, 0.75)';
+    ctx.lineWidth = Math.max(2, 2.5 * zDraw);
+    ctx.beginPath();
+    for (let k = 0; k < 6; k++) {
+      const ang = (k / 6) * Math.PI * 2 - Math.PI / 2;
+      const px = Math.cos(ang) * bossR * zDraw * 1.05;
+      const py = Math.sin(ang) * bossR * zDraw * 1.05;
+      if (k === 0) ctx.moveTo(px, py);
+      else ctx.lineTo(px, py);
+    }
+    ctx.closePath();
+    ctx.stroke();
+    ctx.fillStyle = 'rgba(0, 40, 60, 0.35)';
+    ctx.fill();
+
+    const skullR = bossR * zDraw * 0.62;
+    const grd = ctx.createRadialGradient(-skullR * 0.2, -skullR * 0.25, skullR * 0.1, 0, 0, skullR);
+    grd.addColorStop(0, 'rgba(55, 50, 62, 0.98)');
+    grd.addColorStop(1, 'rgba(22, 18, 30, 1)');
+    ctx.fillStyle = grd;
+    ctx.beginPath();
+    ctx.arc(0, 0, skullR, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = 'rgba(255, 40, 60, 0.95)';
+    ctx.shadowColor = 'rgba(255, 0, 0, 0.8)';
+    ctx.shadowBlur = 12 * zDraw;
+    ctx.beginPath();
+    ctx.arc(-skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.arc(skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.shadowBlur = 0;
+
+    ctx.fillStyle = 'rgba(255, 100, 200, 0.9)';
+    ctx.font = `bold ${Math.max(10, 11 * zDraw)}px ui-monospace, monospace`;
+    ctx.textAlign = 'center';
+    ctx.fillText('MEGA VIRUS : [ ' + hpLeft + ' / ' + maxHp + ' ]', 0, -bossR * zDraw - 14);
+    const barW = bossR * zDraw * 2.2;
+    const barH = Math.max(5, 6 * zDraw);
+    ctx.fillStyle = 'rgba(0,0,0,0.55)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.fillStyle = 'rgba(255, 80, 200, 0.85)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW * (hpLeft / maxHp), barH);
+    ctx.strokeStyle = 'rgba(180, 255, 255, 0.5)';
+    ctx.strokeRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.restore();
+
+    function drawBalloonsCluster(sx, sy, count, col, z) {
+      const n = Math.max(0, Math.min(8, count | 0));
+      for (let b = 0; b < n; b++) {
+        const ox = (b - (n - 1) / 2) * 7 * z;
+        const oy = -18 * z - Math.abs(b - (n - 1) / 2) * 2 * z;
+        ctx.fillStyle = col;
+        ctx.beginPath();
+        ctx.ellipse(sx + ox, sy + oy, 6.5 * z, 8 * z, 0, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = 'rgba(255,255,255,0.35)';
+        ctx.lineWidth = 1;
+        ctx.stroke();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+      const [sx, sy] = worldToScreen(ent.balloonBossCx, ent.balloonBossCy);
+      const col = BALLOON_BOSS_PLAYER_COLORS[idx % BALLOON_BOSS_PLAYER_COLORS.length];
+      const z = zDraw;
+      ctx.save();
+      if (ent.balloonBossEliminated) ctx.globalAlpha = 0.38;
+      ctx.strokeStyle = 'rgba(255, 255, 255, 0.65)';
+      ctx.lineWidth = Math.max(1.2, 1.5 * z);
+      ctx.beginPath();
+      ctx.arc(sx, sy, 22 * z, 0, Math.PI * 2);
+      ctx.stroke();
+      drawBalloonsCluster(sx, sy, ent.balloonBossBalloons | 0, col, z);
+      const nm = String(ent.nickname || '').slice(0, 12);
+      ctx.font = `${Math.max(9, 10 * z)}px system-ui, "Kanit", sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = 'rgba(248, 250, 252, 0.95)';
+      ctx.strokeStyle = 'rgba(0, 10, 30, 0.85)';
+      ctx.lineWidth = 3;
+      let label = nm;
+      if (entry.id === leaderId && leaderId != null) label = '♔ ' + nm;
+      ctx.strokeText(label, sx, sy + 28 * z);
+      ctx.fillText(label, sx, sy + 28 * z);
+      const charImg = getPlayTintedAvatarSource(
+        getAvatarImg(ent.characterId, 'up', timeMs, !!ent.isWalking),
+        ent.characterId, 'up', timeMs, !!ent.isWalking,
+        ent.playTint || playTintFromPeerId(entry.id)
+      );
+      const size = 26 * z;
+      if (charImg && ((charImg.tagName === 'CANVAS' && charImg.width > 0) || (charImg.complete && charImg.naturalWidth))) {
+        const iw = charImg.tagName === 'CANVAS' ? charImg.width : charImg.naturalWidth;
+        const ih = charImg.tagName === 'CANVAS' ? charImg.height : charImg.naturalHeight;
+        const sc = Math.min(size / iw, size / ih, 1);
+        const dw = iw * sc, dh = ih * sc;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - dw / 2, sy - dh + 4 * z, dw, dh);
+      } else {
+        ctx.fillStyle = col;
+        ctx.fillRect(sx - 10 * z, sy - 18 * z, 20 * z, 22 * z);
+      }
+      ctx.restore();
+    });
+
+    for (let i = 0; i < balloonBossPlayerBullets.length; i++) {
+      const b = balloonBossPlayerBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.save();
+      ctx.translate(bx, by);
+      ctx.rotate(Math.atan2(b.vy, b.vx) + Math.PI / 2);
+      ctx.fillStyle = 'rgba(255, 255, 255, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(0, -8 * zDraw);
+      ctx.lineTo(-5 * zDraw, 6 * zDraw);
+      ctx.lineTo(5 * zDraw, 6 * zDraw);
+      ctx.closePath();
+      ctx.fill();
+      ctx.fillStyle = 'rgba(0, 255, 200, 0.5)';
+      ctx.font = `${Math.max(7, 8 * zDraw)}px monospace`;
+      ctx.textAlign = 'center';
+      ctx.fillText('01001', 0, 12 * zDraw);
+      ctx.restore();
+    }
+    for (let i = 0; i < balloonBossBossBullets.length; i++) {
+      const b = balloonBossBossBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.fillStyle = 'rgba(255, 60, 120, 0.92)';
+      ctx.beginPath();
+      ctx.arc(bx, by, Math.max(3, 4.5 * zDraw), 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 200, 255, 0.6)';
+      ctx.stroke();
+    }
+  }
+
+  function jumpSurviveCollectPlatformCells(md) {
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    const out = [];
+    if (!pa) return out;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (pa[y] && pa[y][x] === 1) out.push({ x, y });
+      }
+    }
+    return out;
+  }
+
+  /** ความสูงแมปเป็นคาบวนของแพลตฟอร์ม — แถวที่เลื่อนออกบนจะวนมาโผล่ล่าง */
+  function jumpSurvivePlatformPeriodPx(md) {
+    return (md.height || 15) * tileSize;
+  }
+
+  /**
+   * ยืนบนหน้าแพลตฟอร์มช่อง (tx,ty) — เลือกชั้น k ที่ใกล้ hintY (กล้อง / กลางแมป)
+   */
+  function jumpSurviveGridPosStandingOnPlatform(md, tx, ty, scrollPx) {
+    const ts = tileSize;
+    const h = md.height || 15;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const rawTop = ty * ts - scrollPx;
+    const hintY = (jumpSurviveCamCenterY > 1)
+      ? jumpSurviveCamCenterY
+      : h * ts * 0.72;
+    const k = Math.round((hintY - rawTop - ts * 0.35) / period);
+    const platTop = rawTop + k * period;
+    const feetY = platTop;
+    const pxc = (tx + 0.5) * ts;
+    return {
+      x: pxc / ts - cw * 0.5,
+      y: feetY / ts - ch,
+    };
+  }
+
+  function jumpSurviveGridPosFromTileCenter(md, tx, ty) {
+    return jumpSurviveGridPosStandingOnPlatform(md, tx, ty, 0);
+  }
+
+  function jumpSurviveRandomStandGridPos(md) {
+    const cells = jumpSurviveCollectPlatformCells(md);
+    const sc = jumpSurvivePlatformScrollPx;
+    if (cells.length) {
+      const c = cells[Math.floor(Math.random() * cells.length)];
+      return jumpSurviveGridPosStandingOnPlatform(md, c.x, c.y, sc);
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return jumpSurviveGridPosStandingOnPlatform(md, Number(sp.x) || 1, Number(sp.y) || 1, sc);
+  }
+
+  /** ทดสอบจากเอดิเตอร์: วางคน+บอทบนแพลตฟอร์ม (ไม่ให้เกิดบน spawnArea บนฟ้าแล้วลอย) */
+  function applyJumpSurvivePreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'jump_survive') return;
+    const cells = jumpSurviveCollectPlatformCells(mapData);
+    cells.sort((a, b) => b.y - a.y || a.x - b.x);
+    const sc = jumpSurvivePlatformScrollPx;
+    const pool = cells.length
+      ? cells.map((c) => jumpSurviveGridPosStandingOnPlatform(mapData, c.x, c.y, sc))
+      : [jumpSurviveGridPosStandingOnPlatform(mapData, Number(mapData.spawn && mapData.spawn.x) || 1, Number(mapData.spawn && mapData.spawn.y) || 1, sc)];
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+
+    function stampJumpBotState(o) {
+      if (!o) return;
+      o.jumpSurviveVy = 0;
+      o.jumpSurviveOnGround = true;
+      o.jumpSurviveEliminated = false;
+      o.tx = o.x;
+      o.ty = o.y;
+    }
+
+    if (onlyBots) {
+      let idx = 1 + realIds.length;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || !pool.length) return;
+        const p = pool[idx % pool.length];
+        idx++;
+        o.x = p.x + (Math.random() - 0.5) * 0.08;
+        o.y = p.y + (Math.random() - 0.5) * 0.08;
+        stampJumpBotState(o);
+      });
+      return;
+    }
+
+    let idx = 0;
+    function assignEnt(ent) {
+      if (!ent || !pool.length) return;
+      const p = pool[idx % pool.length];
+      idx++;
+      ent.x = p.x + (Math.random() - 0.5) * 0.08;
+      ent.y = p.y + (Math.random() - 0.5) * 0.08;
+      stampJumpBotState(ent);
+    }
+    assignEnt(me);
+    realIds.forEach((rid) => assignEnt(others.get(rid)));
+    botIds.forEach((bid) => assignEnt(others.get(bid)));
+    jumpSurviveInitRuntime();
+  }
+
+  /**
+   * ฟิสิกส์กระโดดร่วม (ผู้เล่น + บอท preview)
+   * @returns {{ pxc: number, feetY: number, vy: number, onGround: boolean, died: boolean }}
+   */
+  function jumpSurvivePhysicsIntegrate(md, opts) {
+    const {
+      dt,
+      cw, ch,
+      pxc0, feetY0, vy0, wasOnGround,
+      jumpQueued,
+      moveLeft, moveRight,
+      camCenterY,
+      halfViewH,
+    } = opts;
+    const w = md.width || 20, h = md.height || 15;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const bh = ts * 0.9;
+    let pxc = pxc0;
+    let feetY = feetY0;
+    let vy = vy0;
+    let onGround = wasOnGround;
+
+    const gFull = Number(md.jumpSurviveGravity) > 0 ? Number(md.jumpSurviveGravity) : 3200;
+    const g = gFull * dt;
+    let jumpV0;
+    if (Number(md.jumpSurviveJumpImpulse) > 0) {
+      jumpV0 = -Number(md.jumpSurviveJumpImpulse);
+    } else {
+      const mult = (typeof playJumpSurviveJumpHeightMult === 'number' && playJumpSurviveJumpHeightMult > 0)
+        ? playJumpSurviveJumpHeightMult
+        : 1.5;
+      const charHpixels = ch * ts;
+      const impulse = Math.sqrt(Math.max(1e-6, 2 * gFull * mult * charHpixels));
+      jumpV0 = -Math.min(impulse, ts * 36);
+    }
+    let moveX = (Number(md.jumpSurviveMovePxPerSec) > 0 ? Number(md.jumpSurviveMovePxPerSec) : 200) * dt;
+    if (isJumpSurviveMissionUiMapPlay()) moveX *= 1.35;
+
+    if (jumpQueued && onGround) {
+      vy = jumpV0;
+      onGround = false;
+    }
+    vy += g;
+
+    let nx = pxc;
+    if (moveLeft) nx -= moveX;
+    if (moveRight) nx += moveX;
+    nx = Math.max(bw + 1, Math.min(w * ts - bw - 1, nx));
+
+    const headY0 = feetY - bh;
+    const tryL = nx - bw;
+    const tryR = nx + bw;
+    if (!jumpSurviveOverlapsSolidForHorzMove(md, tryL, headY0, tryR, feetY)) {
+      pxc = nx;
+    }
+
+    feetY += vy * dt;
+    let headTop = feetY - bh;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+      if (vy > 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY -= ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            onGround = true;
+            break;
+          }
+        }
+      } else if (vy < 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY += ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            break;
+          }
+        }
+      }
+    } else {
+      onGround = false;
+    }
+
+    headTop = feetY - bh;
+    const headBandBottom = headTop + bh * 0.42;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY) &&
+        jumpSurviveOverlapsObjectWall(md, pxc - bw, headTop, pxc + bw, headBandBottom)) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    headTop = feetY - bh;
+    const topKill = camCenterY - halfViewH - ts * 0.35;
+    const botKill = camCenterY + halfViewH + ts * 0.85;
+    if (feetY < topKill || feetY > botKill || headTop < -ts * 2) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    return { pxc, feetY, vy, onGround, died: false };
+  }
+
+  function jumpSurviveEntityFromHitbox(o, md, pxc, feetYpx) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    o.x = pxc / tileSize - cw * 0.5;
+    o.y = feetYpx / tileSize - ch;
+  }
+
+  function jumpSurviveInitRuntime() {
+    jumpSurviveLastTickMs = performance.now();
+    jumpSurviveSessionStartMs = performance.now();
+    jumpSurviveVy = 0;
+    jumpSurviveJumpQueued = false;
+    jumpSurviveOnGround = false;
+    jumpSurvivePlatformScrollPx = 0;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      const w = mapData.width || 20, h = mapData.height || 15;
+      jumpSurviveCamCenterX = (w * ts) * 0.5;
+      jumpSurviveCamCenterY = (h * ts) * 0.5;
+    } else {
+      jumpSurviveCamCenterX = (me.x + cw * 0.5) * ts;
+      jumpSurviveCamCenterY = (me.y + ch * 0.5) * ts;
+    }
+  }
+
+  function jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty >= h) return true;
+        if (ty < 0) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    if (!pa) return false;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    if (period < ts) return false;
+    const x0 = Math.max(0, Math.floor(left / ts));
+    const x1 = Math.min(w - 1, Math.floor((right - 1e-6) / ts));
+    const vm = ts * 2;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (!pa[ty] || pa[ty][tx] !== 1) continue;
+        const rawTop = ty * ts - scrollPx;
+        const kMin = Math.ceil((top - rawTop - ts - vm) / period);
+        const kMax = Math.floor((bottom - rawTop + vm) / period);
+        for (let k = kMin; k <= kMax; k++) {
+          const platTop = rawTop + k * period;
+          const platBot = platTop + ts;
+          const tileLeft = tx * ts;
+          const tileRight = (tx + 1) * ts;
+          if (platBot > top && platTop < bottom && right > tileLeft && left < tileRight) return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsSolid(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /**
+   * ชนแนวนอน: objects เต็มกล่อง; แพลตฟอร์มไม่นับช่วงปลายเท้าเล็กน้อย
+   * (ถ้าใช้กล่องเต็มกับแพลตฟอร์ม ขณะยืนบนแพลตฟอร์มมักทับช่องแนวตั้ง — เดินซ้ายขวาถูกปฏิเสธทั้งก้อน)
+   */
+  function jumpSurviveOverlapsSolidForHorzMove(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    const ts = tileSize;
+    const footSlop = ts * 0.16;
+    const platformBottom = bottom - footSlop;
+    if (platformBottom <= top + ts * 0.05) return false;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, platformBottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /** Head/body overlaps กำแพง (objects=1) เท่านั้น — ใช้ตรวจชนฝาบนแล้วตาย */
+  function jumpSurviveOverlapsObjectWall(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty < 0 || ty >= h) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveSyncMeFromHitbox(pxc, feetYpx) {
+    jumpSurviveEntityFromHitbox(me, mapData, pxc, feetYpx);
+  }
+
+  function jumpSurviveCameraTargetPx(md) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      return { px: (w * ts) * 0.5, py: (h * ts) * 0.5 };
+    }
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const cx = (e) => (e.x + cw * 0.5) * ts;
+    const cy = (e) => (e.y + ch * 0.5) * ts;
+    if (!jumpSurviveEliminated) return { px: cx(me), py: cy(me) };
+    const aliveHumanIds = [...others.keys()].filter((id) => {
+      if (isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const aliveBotIds = [...others.keys()].filter((id) => {
+      if (!isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const useIds = aliveHumanIds.length ? aliveHumanIds : aliveBotIds;
+    if (!useIds.length) return { px: cx(me), py: cy(me) };
+    let sx = 0, sy = 0;
+    useIds.forEach((id) => {
+      const o = others.get(id);
+      if (!o) return;
+      sx += cx(o);
+      sy += cy(o);
+    });
+    const n = useIds.length;
+    return { px: sx / n, py: sy / n };
+  }
+
+  /** มีแพลตฟอร์มใต้จุดเล็กน้อยข้างหน้าแนว wishDir หรือไม่ — กันบอทเดินหลุมแล้วตกจอ */
+  function jumpSurviveBotHasFloorAhead(md, pxc, feetY, wishDir, scrollPx) {
+    if (!wishDir) return true;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const probeX = pxc + wishDir * (bw + ts * 0.82);
+    const pad = ts * 0.24;
+    const left = probeX - pad;
+    const right = probeX + pad;
+    const top = feetY - ts * 0.45;
+    const bottom = feetY + ts * 8;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx);
+  }
+
+  function stepJumpSurvivePreviewBots(dt, halfViewH) {
+    if (!previewFillBots || !mapData || !isJumpSurvive()) return;
+    const md = mapData;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const ts = tileSize;
+    const wpx = (md.width || 20) * ts;
+    const centerPx = wpx * 0.5;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (o.jumpSurviveEliminated) return;
+      if (typeof o.jumpSurviveVy !== 'number') o.jumpSurviveVy = 0;
+      if (o.jumpSurviveOnGround == null) o.jumpSurviveOnGround = false;
+      if (typeof o.jumpSurviveNextJumpAi !== 'number') o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * 500);
+      if (typeof o.jumpSurviveWishNext !== 'number') o.jumpSurviveWishNext = Date.now() + 200;
+      if (o.jumpSurviveWishX == null) o.jumpSurviveWishX = 0;
+
+      let pxc = (o.x + cw * 0.5) * ts;
+      let feetY = (o.y + ch) * ts;
+
+      const camCy = jumpSurviveCamCenterY;
+      const mission = isJumpSurviveMissionUiMapPlay();
+      const lowDanger = feetY > camCy + halfViewH - ts * 8.5;
+
+      if (Date.now() >= o.jumpSurviveWishNext) {
+        const wMin = mission && lowDanger ? 180 : 380;
+        const wSpan = mission && lowDanger ? 480 : 700;
+        o.jumpSurviveWishNext = Date.now() + wMin + Math.floor(Math.random() * wSpan);
+        const tier = o.botTier || 'avg';
+        if (mission && lowDanger && Math.random() < 0.55) {
+          o.jumpSurviveWishX = 0;
+        } else if (pxc < centerPx - ts * 1.8) o.jumpSurviveWishX = 1;
+        else if (pxc > centerPx + ts * 1.8) o.jumpSurviveWishX = -1;
+        else if (tier === 'sharp') {
+          const roam = mission ? 0.42 : 0.55;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        } else {
+          const roam = mission ? 0.28 : 0.4;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        }
+      }
+
+      let moveLeft = o.jumpSurviveWishX < 0;
+      let moveRight = o.jumpSurviveWishX > 0;
+      let hazardJump = false;
+      if (o.jumpSurviveOnGround) {
+        const sc = jumpSurvivePlatformScrollPx;
+        if (moveRight && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, 1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? -1 : 0;
+          hazardJump = true;
+        } else if (moveLeft && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, -1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? 1 : 0;
+          hazardJump = true;
+        }
+        moveLeft = o.jumpSurviveWishX < 0;
+        moveRight = o.jumpSurviveWishX > 0;
+      }
+
+      let jumpQ = false;
+      if (hazardJump) o.jumpSurviveNextJumpAi = Math.min(o.jumpSurviveNextJumpAi, Date.now());
+      if (o.jumpSurviveOnGround && Date.now() >= o.jumpSurviveNextJumpAi) {
+        o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * (hazardJump ? 520 : 1100));
+        const tier = o.botTier || 'avg';
+        let jp = tier === 'sharp' ? 0.5 : tier === 'weak' ? 0.25 : 0.36;
+        if (mission) jp += 0.12;
+        if (lowDanger) jp += 0.22;
+        jp = Math.min(0.9, jp);
+        if (hazardJump || Math.random() < jp) jumpQ = true;
+      }
+
+      const r = jumpSurvivePhysicsIntegrate(md, {
+        dt,
+        cw,
+        ch,
+        pxc0: pxc,
+        feetY0: feetY,
+        vy0: o.jumpSurviveVy,
+        wasOnGround: o.jumpSurviveOnGround,
+        jumpQueued: jumpQ,
+        moveLeft,
+        moveRight,
+        camCenterY: jumpSurviveCamCenterY,
+        halfViewH,
+      });
+
+      if (r.died) {
+        o.jumpSurviveEliminated = true;
+        o.jumpSurviveVy = 0;
+        jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+        o.tx = o.x;
+        o.ty = o.y;
+        o.botIsWalking = false;
+        return;
+      }
+      o.jumpSurviveVy = r.vy;
+      o.jumpSurviveOnGround = r.onGround;
+      jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (moveRight) o.direction = 'right';
+      else if (moveLeft) o.direction = 'left';
+      o.botIsWalking = Math.abs(r.vy) > 40 || moveLeft || moveRight;
+    });
+  }
+
+  function jumpSurviveTickFrame() {
+    if (!mapData || !isJumpSurvive()) return;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+      const remEnd = jumpSurviveRemainingSecMission();
+      if (remEnd !== null && remEnd <= 0) {
+        endJumpSurviveMissionRound();
+        return;
+      }
+    }
+    const md = mapData;
+    const ts = tileSize;
+    const now = performance.now();
+    const dt = Math.min(0.05, Math.max(0, (now - jumpSurviveLastTickMs) / 1000));
+    jumpSurviveLastTickMs = now;
+
+    const halfViewH = canvas.height / (2 * zoom);
+    const rise = (Number(md.jumpSurviveRisePxPerSec) > 0 ? Number(md.jumpSurviveRisePxPerSec) : 42) * dt;
+    jumpSurvivePlatformScrollPx += rise;
+
+    const camTgt = jumpSurviveCameraTargetPx(md);
+    const ck = Math.min(1, dt * 7);
+    jumpSurviveCamCenterX += (camTgt.px - jumpSurviveCamCenterX) * ck;
+    jumpSurviveCamCenterY += (camTgt.py - jumpSurviveCamCenterY) * ck;
+
+    if (jumpSurviveEliminated) {
+      stepJumpSurvivePreviewBots(dt, halfViewH);
+      jumpSurviveMissionMaybeEarlyFinish();
+      return;
+    }
+
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let pxc = (me.x + cw * 0.5) * ts;
+    let feetY = (me.y + ch) * ts;
+
+    const jq = jumpSurviveJumpQueued;
+    jumpSurviveJumpQueued = false;
+
+    const r = jumpSurvivePhysicsIntegrate(md, {
+      dt,
+      cw,
+      ch,
+      pxc0: pxc,
+      feetY0: feetY,
+      vy0: jumpSurviveVy,
+      wasOnGround: jumpSurviveOnGround,
+      jumpQueued: jq,
+      moveLeft: !!(keys['ArrowLeft'] || keys['KeyA']),
+      moveRight: !!(keys['ArrowRight'] || keys['KeyD']),
+      camCenterY: jumpSurviveCamCenterY,
+      halfViewH,
+    });
+
+    if (r.died) {
+      jumpSurviveEliminated = true;
+      jumpSurviveVy = 0;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+      ['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown', 'KeyA', 'KeyW', 'KeyS', 'KeyD'].forEach((c) => { keys[c] = false; });
+    } else {
+      jumpSurviveVy = r.vy;
+      jumpSurviveOnGround = r.onGround;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+    }
+
+    stepJumpSurvivePreviewBots(dt, halfViewH);
+
+    if (!jumpSurviveEliminated) {
+      me.isWalking = Math.abs(jumpSurviveVy) > 40 || !!(keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD']);
+      if (keys['ArrowRight'] || keys['KeyD']) me.direction = 'right';
+      else if (keys['ArrowLeft'] || keys['KeyA']) me.direction = 'left';
+
+      if (Date.now() - jumpSurviveLastEmitT > 80) {
+        jumpSurviveLastEmitT = Date.now();
+        socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+      }
+    }
+
+    jumpSurviveMissionMaybeEarlyFinish();
+  }
+
+  function gridImageLibIdleUrlPlay(entry) {
+    if (entry == null) return '';
+    if (typeof entry === 'string') return entry;
+    if (typeof entry === 'object' && entry.idle) return String(entry.idle);
+    return '';
+  }
+  function gridImageLibHeldUrlPlay(entry) {
+    if (entry == null || typeof entry === 'string') return '';
+    if (typeof entry === 'object' && entry.held && String(entry.held).length) return String(entry.held);
+    return '';
+  }
+
+  function normalizeGridImageCellsOnMap(md) {
+    if (!md) return;
+    const w = md.width || 20, h = md.height || 15;
+    if (!Array.isArray(md.gridImageLibrary)) md.gridImageLibrary = [];
+    md.gridImageLibrary = md.gridImageLibrary
+      .map((raw) => {
+        if (typeof raw === 'string' && raw.length > 0 && raw.length < 30000000) return { idle: raw, held: null };
+        if (raw && typeof raw === 'object' && typeof raw.idle === 'string' && raw.idle.length > 0 && raw.idle.length < 30000000) {
+          let held = typeof raw.held === 'string' && raw.held.length > 0 && raw.held.length < 30000000 ? raw.held : null;
+          if (held && held === raw.idle) held = null;
+          return { idle: raw.idle, held };
+        }
+        return null;
+      })
+      .filter(Boolean);
+    const libLen = md.gridImageLibrary.length;
+    let placements = [];
+    if (Array.isArray(md.gridImageSprites) && md.gridImageSprites.length) {
+      placements = md.gridImageSprites.map((raw) => {
+        const i = Math.max(0, Math.floor(Number(raw.i)));
+        const x = Math.floor(Number(raw.x));
+        const y = Math.floor(Number(raw.y));
+        const ww = Math.max(1, Math.floor(Number(raw.w)) || 1);
+        const hh = Math.max(1, Math.floor(Number(raw.h)) || 1);
+        const rawB = raw.bindCarryOption;
+        const bn = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+        const base = { i, x, y, w: ww, h: hh };
+        if (Number.isFinite(bn) && bn >= 1 && bn <= QUIZ_CARRY_MAX_OPTION_SLOTS) base.bindCarryOption = bn;
+        return base;
+      }).filter((s) => Number.isFinite(s.i) && s.i >= 0 && s.i < libLen &&
+        Number.isFinite(s.x) && Number.isFinite(s.y) && s.w >= 1 && s.h >= 1 &&
+        s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+      placements = placements.map((s) => {
+        let x = s.x, y = s.y, ww = s.w, hh = s.h;
+        if (x < 0) { ww += x; x = 0; }
+        if (y < 0) { hh += y; y = 0; }
+        if (x + ww > w) ww = w - x;
+        if (y + hh > h) hh = h - y;
+        const out = { i: s.i, x, y, w: Math.max(1, ww), h: Math.max(1, hh) };
+        if (s.bindCarryOption != null) out.bindCarryOption = s.bindCarryOption;
+        return out;
+      }).filter((s) => s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+    } else {
+      const cells = md.gridImageCells;
+      if (Array.isArray(cells) && cells.length === h && libLen > 0) {
+        for (let yy = 0; yy < h; yy++) {
+          const row = cells[yy];
+          if (!row) continue;
+          for (let xx = 0; xx < w; xx++) {
+            if (row[xx] == null) continue;
+            const iv = parseInt(row[xx], 10);
+            if (!Number.isFinite(iv) || iv < 0 || iv >= libLen) continue;
+            placements.push({ i: iv, x: xx, y: yy, w: 1, h: 1 });
+          }
+        }
+      }
+    }
+    md.gridImagePlacements = placements;
+    const outCells = Array(h).fill(0).map(() => Array(w).fill(null));
+    placements.forEach((sp) => {
+      for (let yy = sp.y; yy < sp.y + sp.h; yy++) {
+        for (let xx = sp.x; xx < sp.x + sp.w; xx++) {
+          if (yy >= 0 && yy < h && xx >= 0 && xx < w) outCells[yy][xx] = sp.i;
+        }
+      }
+    });
+    md.gridImageCells = outCells;
+  }
+
+  function loadMapGridImages() {
+    mapGridImageImgs = [];
+    mapGridImageHeldImgs = [];
+    if (!mapData || !Array.isArray(mapData.gridImageLibrary) || !mapData.gridImageLibrary.length) return;
+    mapData.gridImageLibrary.forEach((entry, i) => {
+      mapGridImageImgs[i] = null;
+      mapGridImageHeldImgs[i] = null;
+      const idle = gridImageLibIdleUrlPlay(entry);
+      if (!idle) return;
+      const im = new Image();
+      im.onload = () => { try { draw(); } catch (e) {} };
+      im.onerror = () => {};
+      im.src = idle;
+      mapGridImageImgs[i] = im;
+      const held = gridImageLibHeldUrlPlay(entry);
+      if (held && held !== idle) {
+        const hm = new Image();
+        hm.onload = () => { try { draw(); } catch (e) {} };
+        hm.onerror = () => {};
+        hm.src = held;
+        mapGridImageHeldImgs[i] = hm;
+      }
+    });
+  }
+
+  /** โซนตัวเลือกที่ทับสไปรต์มากที่สุด — quiz_carry สลับรูป idle/held · ถ้าไม่ทับเลยลองขยายขอบ 1 ช่อง (มาร์กเกอร์ชิดขอบสไปรต์) */
+  function dominantQuizCarryOptionInSpriteRect(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !md.quizCarryOptionArea) return null;
+    const g = md.quizCarryOptionArea;
+    const mw = md.width || 20, mh = md.height || 15;
+    const bx = sp.x | 0, by = sp.y | 0, bw = sp.w | 0, bh = sp.h | 0;
+    const counts = new Map();
+    function addOverlapRect(x0, y0, ww, hh) {
+      for (let yy = y0; yy < y0 + hh; yy++) {
+        if (yy < 0 || yy >= mh) continue;
+        const row = g[yy];
+        if (!row) continue;
+        for (let xx = x0; xx < x0 + ww; xx++) {
+          if (xx < 0 || xx >= mw) continue;
+          const v = row[xx];
+          const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+          if (!Number.isFinite(n) || n < 1 || n > QUIZ_CARRY_MAX_OPTION_SLOTS) continue;
+          const idx = n - 1;
+          counts.set(idx, (counts.get(idx) || 0) + 1);
+        }
+      }
+    }
+    addOverlapRect(bx, by, bw, bh);
+    if (!counts.size) {
+      const pad = 1;
+      const x0 = Math.max(0, bx - pad);
+      const y0 = Math.max(0, by - pad);
+      const x1 = Math.min(mw, bx + bw + pad);
+      const y1 = Math.min(mh, by + bh + pad);
+      addOverlapRect(x0, y0, x1 - x0, y1 - y0);
+    }
+    if (!counts.size) return null;
+    let best = null;
+    let bestN = -1;
+    counts.forEach((n, k) => {
+      if (best == null || n > bestN || (n === bestN && k < best)) {
+        bestN = n;
+        best = k;
+      }
+    });
+    return best;
+  }
+
+  /** 0-based choice index สำหรับสลับ idle/held — ใช้ bindCarryOption จากแมปก่อน แล้วค่อยนับทับโซน */
+  function quizCarryOptionIndexForGridSprite(md, sp) {
+    if (!sp) return null;
+    const rawB = sp.bindCarryOption;
+    if (rawB != null && rawB !== '') {
+      const n = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+      if (Number.isFinite(n) && n >= 1 && n <= QUIZ_CARRY_MAX_OPTION_SLOTS) return n - 1;
+    }
+    return dominantQuizCarryOptionInSpriteRect(md, sp);
+  }
+
+  /** รูป held จากคลังกริดสำหรับข้อนี้ — ใช้วาดป้ายติดตัว (ไม่ผ่าน sanitize URL) */
+  function findQuizCarryGridHeldImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gh = mapGridImageHeldImgs[sp.i];
+      if (gh && gh.complete && gh.naturalWidth) return gh;
+    }
+    return null;
+  }
+
+  /** รูป idle จากคลังกริดสำหรับข้อนี้ — วาดบนป้ายตัวเลือกบนพื้นเมื่อไม่มีรูปจากคำถาม/ธีม */
+  function findQuizCarryGridIdleImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gid = mapGridImageImgs[sp.i];
+      if (gid && gid.complete && gid.naturalWidth) return gid;
+    }
+    return null;
+  }
+
+  function applyMapAndStart(gameMapData, res) {
+    const prevWasSpaceShooter = mapData && mapData.gameType === 'space_shooter';
+    const prevWasBalloonBoss = mapData && mapData.gameType === 'balloon_boss';
+    mapData = gameMapData;
+    if (res && res.mapId != null && String(res.mapId).trim() !== '') {
+      playSessionMapId = String(res.mapId).trim();
+    }
+    if (res && res.hostId != null) playHostId = res.hostId;
+    if (mapData.gameType !== 'space_shooter') {
+      spaceShooterGameEnded = false;
+      if (prevWasSpaceShooter) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (mapData.gameType !== 'balloon_boss') {
+      balloonBossGameEnded = false;
+      if (prevWasBalloonBoss) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+    if (!mapData.interactive) mapData.interactive = [];
+    if (mapData.gameType === 'quiz') {
+      if (!mapData.quizTrueArea) mapData.quizTrueArea = [];
+      if (!mapData.quizFalseArea) mapData.quizFalseArea = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+    }
+    if (mapData.gameType === 'stack') {
+      if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+      if (!mapData.stackLandArea) mapData.stackLandArea = [];
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      if (!mapData.quizCarryHubArea) mapData.quizCarryHubArea = [];
+      if (!mapData.quizCarryOptionArea) mapData.quizCarryOptionArea = [];
+      if (!mapData.carryEmbedCountdownArea) mapData.carryEmbedCountdownArea = [];
+      if (!mapData.quizQuestions) mapData.quizQuestions = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+      normalizeQuizCarryLayersInPlay(mapData);
+    }
+    if (mapData.gameType === 'quiz_battle') {
+      if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+      if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+      normalizeQuizBattlePathInPlay(mapData);
+      normalizeQuizBattleDomeInPlay(mapData);
+    }
+    tileSize = mapData.tileSize || 32;
+    mapBackgroundImg = null;
+    if (mapData.backgroundImage) {
+      mapBackgroundImg = new Image();
+      mapBackgroundImg.src = mapData.backgroundImage;
+    }
+    normalizeGridImageCellsOnMap(mapData);
+    loadMapGridImages();
+    var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+      : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+        : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+    var prevTag = previewMode ? '[ทดสอบ] ' : '';
+    document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+    const plist = Array.isArray(res.peers) ? res.peers : [];
+    const myPeer = plist.find(p => p.id === myId);
+    const myPos = peerXYFromJoin(myPeer, mapData.spawn);
+    me.x = myPos.x;
+    me.y = myPos.y;
+    if (isQuizCarry()) {
+      const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(me.x, me.y);
+      me.x = hubSnap.x;
+      me.y = hubSnap.y;
+    }
+    if (isQuizBattle()) {
+      const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+      me.x = pathSnap.x;
+      me.y = pathSnap.y;
+    }
+    me.direction = myPeer?.direction ?? 'down';
+    me.characterId = myPeer?.characterId || null;
+    meGauntletJumpTicks = typeof myPeer?.gauntletJumpTicks === 'number' ? myPeer.gauntletJumpTicks : 0;
+    meGauntletJumpVis = meGauntletJumpTicks;
+    {
+      const sc0 = Number(myPeer && myPeer.gauntletScore);
+      me.gauntletScore = Number.isFinite(sc0) ? Math.max(0, sc0) : 0;
+      me.gauntletEliminated = !!(myPeer && myPeer.gauntletEliminated);
+    }
+    {
+      const sh0 = Number(myPeer && myPeer.spaceShooterScore);
+      me.spaceShooterScore = Number.isFinite(sh0) ? Math.max(0, sh0) : 0;
+    }
+    {
+      const bSt = balloonBossBalloonsStartPlay();
+      const bs0 = Number(myPeer && myPeer.balloonBossScore);
+      me.balloonBossScore = Number.isFinite(bs0) ? Math.max(0, bs0) : 0;
+      const bb0 = Number(myPeer && myPeer.balloonBossBalloons);
+      me.balloonBossBalloons = Number.isFinite(bb0) ? Math.max(0, Math.floor(bb0)) : bSt;
+      me.balloonBossEliminated = !!(myPeer && myPeer.balloonBossEliminated);
+    }
+    gauntletObstacles = [];
+    gauntletObsRenderPrev = [];
+    gauntletObsRenderNext = [];
+    gauntletObsBlendT0 = 0;
+    me.playTint = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+    others.clear();
+    plist.forEach(p => {
+      if (p.id !== myId) {
+        const pos = peerXYFromJoin(p, mapData.spawn);
+        let px = pos.x, py = pos.y;
+        if (isQuizCarry()) {
+          const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(px, py);
+          px = hubSnap.x;
+          py = hubSnap.y;
+        }
+        if (isQuizBattle()) {
+          const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          px = pathSnap.x;
+          py = pathSnap.y;
+        }
+        others.set(p.id, {
+          x: px, y: py, tx: px, ty: py, direction: p.direction, nickname: p.nickname, characterId: p.characterId,
+          playTint: playTintFromPeerId(p.id),
+          gauntletJumpTicks: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletJumpVis: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletScore: (() => { const s = Number(p.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          gauntletEliminated: !!p.gauntletEliminated,
+          jumpSurviveEliminated: false,
+          spaceShooterScore: (() => { const s = Number(p.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossScore: (() => { const s = Number(p.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossBalloons: (() => {
+            const s = Number(p.balloonBossBalloons);
+            return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+          })(),
+          balloonBossEliminated: !!p.balloonBossEliminated,
+          quizCarryHeld: null,
+        });
+      }
+    });
+    if (mapData.gameType === 'gauntlet') {
+      me.tx = me.x;
+      me.ty = me.y;
+      if (res.gauntletEndsAt != null) {
+        const geJoin = Number(res.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(geJoin) ? geJoin : null;
+      } else {
+        gauntletEndsAtMs = null;
+      }
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {});
+    } else {
+      me.tx = null;
+      me.ty = null;
+      gauntletEndsAtMs = null;
+    }
+    rebalancePreviewBots();
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (isStack()) {
+      lastStackTickMs = performance.now();
+      resetStackMinigameState();
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          else reapplyStackMiniSizingFromGlobals();
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        });
+    } else {
+      stackMini = null;
+    }
+    playPath = [];
+    me.isWalking = false;
+    if (mapData.gameType === 'jump_survive') {
+      if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+      if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+      normalizeJumpSurvivePlatformAreaInPlay(mapData);
+      jumpSurviveEliminated = false;
+      jumpSurviveGameEnded = false;
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      if (isJumpSurviveMissionUiMapPlay()) {
+        jumpSurviveMissionPhase = 'howto';
+        hideConflictingOverlaysForJumpSurviveMission();
+        applyJumpSurviveJumperPanelImages();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then(function (r) { return r.ok ? r.json() : null; })
+          .then(function (t) { if (t) applyGauntletTimingFromServer(t); })
+          .catch(function () {});
+        setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 50);
+      } else {
+        jumpSurviveMissionPhase = null;
+        jumpSurviveInitRuntime();
+      }
+    }
+    if (mapData.gameType === 'space_shooter') {
+      spaceShooterGameEnded = false;
+      normalizeShooterSpawnSlotsInPlay(mapData);
+      spaceShooterBullets = [];
+      spaceShooterAsteroids = [];
+      spaceShooterPopups = [];
+      spaceShooterLastTickMs = performance.now();
+      spaceShooterSpawnAccMs = 0;
+      spaceShooterFireCd = 0;
+      spaceShooterSessionStartMs = performance.now();
+      spaceShooterLastMoveEmit = 0;
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      balloonBossGameEnded = false;
+      normalizeBalloonBossPlayerSlotsInPlay(mapData);
+      balloonBossPendingShots = [];
+      balloonBossPlayerBullets = [];
+      balloonBossBossBullets = [];
+      balloonBossHitFx = [];
+      balloonBossLastTickMs = performance.now();
+      balloonBossPlayerFireCd = 0;
+      balloonBossSessionStartMs = performance.now();
+      balloonBossLastMoveEmit = 0;
+      balloonBossBossFireAcc = 0;
+    }
+    if (isQuiz()) setupPlayQuizUi();
+    else if (isQuizCarry()) setupPlayQuizCarryUi();
+    else if (isQuizBattle()) setupPlayQuizBattleUi();
+    else teardownPlayQuizUi();
+    if (mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) {
+      hideConflictingOverlaysForGauntletCrown();
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR = document.getElementById('gauntlet-crown-countdown');
+      if (gccR) gccR.classList.add('is-hidden');
+      setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 50);
+    } else if (mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay()) {
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccRj = document.getElementById('gauntlet-crown-countdown');
+      if (gccRj) gccRj.classList.add('is-hidden');
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+    } else {
+      const hov = document.getElementById('gauntlet-crown-howto-overlay');
+      if (hov) {
+        hov.classList.add('is-hidden');
+        gauntletCrownHowtoVisible = false;
+      }
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR2 = document.getElementById('gauntlet-crown-countdown');
+      if (gccR2) gccR2.classList.add('is-hidden');
+    }
+    resizeCanvas(); draw(); tick();
+  }
+
+  socket.on('connect', () => {
+    firstCharacterDefaultPromise.then(() => {
+      socket.emit('join-space', { spaceId, nickname: nick, characterId: getPlayCharacterId() }, (res) => {
+        if (!res || !res.ok) {
+          const errMsg = (res && res.error) || 'เข้าร่วมไม่ได้';
+          alert(errMsg);
+          const caseLocked = /เริ่มคดี|ไม่รับผู้เล่น/.test(errMsg);
+          const detectiveReturn = params.get('detectiveReturn') === '1'
+            || (function () { try { return sessionStorage.getItem('detectiveMinigameReturn') === '1'; } catch (e) { return false; } })();
+          if (caseLocked || detectiveReturn) {
+            window.location.replace(buildRoomLobbyReturnHref());
+          } else {
+            window.location.replace(BASE + '/lobby.html');
+          }
+          return;
+        }
+        myId = socket.id;
+        let botSlots = parseInt(res.botSlotCount, 10);
+        if ((!botSlots || botSlots < 1) && res.maxPlayers > 0 && res.maxPlayers < 6) {
+          botSlots = 6 - res.maxPlayers;
+        }
+        if (botSlots > 0) {
+          detectiveCaseFillBots = true;
+          detectiveBotSlotCount = Math.min(6, Math.max(0, botSlots));
+        }
+        if (isDetectiveMinigamePlay()) {
+          try { document.documentElement.classList.add('play-detective-minigame'); } catch (eD) { /* ignore */ }
+        }
+        if (res.quizCarrySettingsSnap && typeof res.quizCarrySettingsSnap === 'object') {
+          quizCarryJoinSettingsSnap = res.quizCarrySettingsSnap;
+          if (res.quizCarrySettingsSnap.carryMapPanelTheme && typeof res.quizCarrySettingsSnap.carryMapPanelTheme === 'object') {
+            setQuizCarryMapPanelThemeFromApi({ carryMapPanelTheme: res.quizCarrySettingsSnap.carryMapPanelTheme });
+          }
+          if (res.quizCarrySettingsSnap.carryEmbedCountdownTheme && typeof res.quizCarrySettingsSnap.carryEmbedCountdownTheme === 'object') {
+            setQuizCarryEmbedCountdownThemeFromApi({ carryEmbedCountdownTheme: res.quizCarrySettingsSnap.carryEmbedCountdownTheme });
+          }
+          if (Array.isArray(res.quizCarrySettingsSnap.carryChoicePlaqueThemes) && res.quizCarrySettingsSnap.carryChoicePlaqueThemes.length) {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueThemes: res.quizCarrySettingsSnap.carryChoicePlaqueThemes });
+          } else if (res.quizCarrySettingsSnap.carryChoicePlaqueTheme && typeof res.quizCarrySettingsSnap.carryChoicePlaqueTheme === 'object') {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueTheme: res.quizCarrySettingsSnap.carryChoicePlaqueTheme });
+          }
+          const joinSc = Number(res.quizCarrySettingsSnap.carryChoicePlaqueMapScale);
+          if (Number.isFinite(joinSc)) {
+            quizCarryPlaqueMapScale = Math.max(0.85, Math.min(2.5, joinSc));
+          }
+        }
+        if (previewMode && editorEmbedReturn && res.mapData && res.mapData.gameType === 'lobby') {
+          const q = [];
+          q.push('space=' + encodeURIComponent(spaceId));
+          q.push('nick=' + encodeURIComponent(nick));
+          const mid = params.get('map');
+          if (mid) q.push('map=' + encodeURIComponent(mid));
+          q.push('preview=1');
+          q.push('editorEmbed=1');
+          if (params.get('defaultChar') != null) q.push('defaultChar=' + encodeURIComponent(params.get('defaultChar')));
+          window.location.replace(BASE + '/room-lobby.html?' + q.join('&'));
+          return;
+        }
+        const playMapId = params.get('map');
+        if (playMapId) {
+          fetch(BASE + '/api/maps/' + encodeURIComponent(playMapId))
+            .then(r => r.ok ? r.json() : null)
+            .then(data => {
+              if (data) applyMapAndStart(data, res);
+              else applyMapAndStart(res.mapData, res);
+            })
+            .catch(() => applyMapAndStart(res.mapData, res));
+        } else {
+          applyMapAndStart(res.mapData, res);
+        }
+      });
+    });
+  });
+
+  const LERP = 0.2;
+  socket.on('user-joined', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    const x = Number(data.x);
+    const y = Number(data.y);
+    const px = Number.isFinite(x) ? x : 1;
+    const py = Number.isFinite(y) ? y : 1;
+    others.set(data.id, {
+      x: px, y: py, tx: px, ty: py,
+      direction: data.direction || 'down', nickname: data.nickname,
+      characterId: data.characterId ?? null,
+      playTint: playTintFromPeerId(data.id),
+      gauntletJumpTicks: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletJumpVis: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletScore: (() => { const s = Number(data.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      jumpSurviveEliminated: false,
+      spaceShooterScore: (() => { const s = Number(data.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossScore: (() => { const s = Number(data.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossBalloons: (() => {
+        const s = Number(data.balloonBossBalloons);
+        return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+      })(),
+      balloonBossEliminated: !!data.balloonBossEliminated,
+      quizCarryHeld: null,
+    });
+    if (previewFillBots) rebalancePreviewBots();
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('host-changed', (d) => {
+    if (d && d.hostId != null) playHostId = d.hostId;
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('quiz-carry-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    quizCarryLobbyReadyMap = { ...d.readyMap };
+    if (quizCarryPregameActive && isQuizCarry()) {
+      quizCarrySyncGuestReadyIfNeeded();
+      updateQuizCarryPregameHud();
+    }
+  });
+  socket.on('quiz-carry-lobby-started', () => {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    endQuizCarryEmbedPregameAndStart();
+  });
+  socket.on('gauntlet-crown-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    gauntletCrownLobbyReadyMap = { ...d.readyMap };
+    if (gauntletCrownPregamePhase === 'howto') {
+      gauntletCrownSyncGuestReadyIfNeeded();
+      updateGauntletCrownHowtoHud();
+    }
+  });
+  socket.on('gauntlet-crown-lobby-started', () => {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    beginGauntletCrownCountdownThenRun();
+  });
+  socket.on('user-move', (data) => {
+    if (data && myId != null && data.id === myId) {
+      /* Gauntlet: ตำแหน่งอ้างอิงจาก gauntlet-sync + เลอร์ปเท่านั้น — ไม่งั้น echo จาก move จะสแนป me.x/y โดยไม่อัปเดต tx/ty ทำให้เลอร์ปผิดและชนเซิร์ฟเวอร์ไม่ตรง */
+      if (mapData && mapData.gameType === 'gauntlet') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'stack') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'jump_survive') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'space_shooter') {
+        if (data.spaceShooterScore != null) {
+          const s = Number(data.spaceShooterScore);
+          if (Number.isFinite(s)) me.spaceShooterScore = Math.max(0, s);
+        }
+        return;
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) me.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) me.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) me.balloonBossEliminated = !!data.balloonBossEliminated;
+        return;
+      }
+      if (mapData && mapData.gameType === 'quiz_battle') {
+        if (data.x != null) {
+          const x = Number(data.x);
+          if (Number.isFinite(x)) me.x = x;
+        }
+        if (data.y != null) {
+          const y = Number(data.y);
+          if (Number.isFinite(y)) me.y = y;
+        }
+        const s = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+        me.x = s.x;
+        me.y = s.y;
+        if (data.direction) me.direction = data.direction;
+        if (data.characterId != null) me.characterId = data.characterId;
+        playPath = [];
+        return;
+      }
+      if (data.x != null) {
+        const x = Number(data.x);
+        if (Number.isFinite(x)) me.x = x;
+      }
+      if (data.y != null) {
+        const y = Number(data.y);
+        if (Number.isFinite(y)) me.y = y;
+      }
+      if (data.direction) me.direction = data.direction;
+      if (data.characterId != null) me.characterId = data.characterId;
+      playPath = [];
+      return;
+    }
+    const o = others.get(data.id);
+    if (o) {
+      if (mapData && mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData) && !isPreviewBotId(data.id)) {
+        const px = Number(data.x);
+        const py = Number(data.y);
+        if (Number.isFinite(px) && Number.isFinite(py)) {
+          const sn = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          o.tx = sn.x;
+          o.ty = sn.y;
+          o.x = sn.x;
+          o.y = sn.y;
+        } else {
+          o.tx = data.x;
+          o.ty = data.y;
+        }
+      } else {
+        o.tx = data.x;
+        o.ty = data.y;
+      }
+      o.direction = data.direction || o.direction;
+      if (data.characterId != null) o.characterId = data.characterId;
+      if (mapData && mapData.gameType === 'space_shooter' && data.spaceShooterScore != null) {
+        const s = Number(data.spaceShooterScore);
+        if (Number.isFinite(s)) o.spaceShooterScore = Math.max(0, s);
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) o.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) o.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) o.balloonBossEliminated = !!data.balloonBossEliminated;
+      }
+    }
+  });
+  socket.on('user-left', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    others.delete(data.id);
+    if (previewFillBots) rebalancePreviewBots();
+  });
+  socket.on('chat', (data) => {
+    const box = document.getElementById('chat-messages');
+    if (!box) return;
+    const div = document.createElement('div');
+    div.className = 'chat-msg';
+    div.textContent = (data.nickname || '') + ': ' + (data.text || '');
+    box.appendChild(div);
+    box.scrollTop = 1e9;
+  });
+
+  socket.on('quiz-phase', (p) => {
+    if (previewMode) return;
+    if (!p || !mapData || !isQuiz()) return;
+    if (p.text) playQuizText = p.text;
+    playQuizPhaseLocal = p.phase;
+    playQuizPhaseEndsAt = p.endsAt || 0;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    const qEl = document.getElementById('quiz-game-question');
+    if (phaseEl) {
+      phaseEl.textContent = p.phase === 'read'
+        ? ('อ่านคำถาม ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''))
+        : ('เดินไปโซน ถูก / ผิด — ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''));
+    }
+    if (qEl) qEl.textContent = playQuizText || '';
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.remove('is-hidden');
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(updatePlayQuizTimerDisplay, 200);
+    updatePlayQuizTimerDisplay();
+    if (!previewMode && isQuiz() && !Object.keys(playLiveQuizScores).length) initPlayLiveQuizScoresZeros();
+  });
+
+  socket.on('quiz-result', (r) => {
+    if (previewMode || !r) return;
+    if (r.scores) {
+      playLiveQuizScores = { ...r.scores };
+      renderPlayQuizScoreboard(playLiveQuizScores);
+    }
+    showPlayQuizFeedback(r);
+  });
+
+  socket.on('quiz-player-state', (st) => {
+    if (previewMode) return;
+    if (!st) return;
+    playQuizPlayerLocal = {
+      cannotTrue: !!st.cannotTrue,
+      cannotFalse: !!st.cannotFalse,
+      eliminated: !!st.eliminated,
+      score: typeof st.score === 'number' ? st.score : (playQuizPlayerLocal.score || 0),
+    };
+  });
+
+  socket.on('quiz-ended', () => {
+    if (previewMode && isQuiz()) return;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizPhaseLocal = null;
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+    }
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    playLiveQuizScores = {};
+    hidePlayQuizHud();
+  });
+
+  socket.on('gauntlet-sync', (data) => {
+    if (!mapData || mapData.gameType !== 'gauntlet' || !data) return;
+    applyGauntletTimingFromServer(data);
+    if (Array.isArray(data.obstacles)) {
+      gauntletObstacles = data.obstacles;
+      pushGauntletObsRenderFrame(data.obstacles);
+    }
+    if (!Array.isArray(data.players)) return;
+    data.players.forEach((p) => {
+      if (!p || p.id == null || myId == null) return;
+      const pid = String(p.id);
+      const mid = String(myId);
+      if (pid === mid) {
+        const px = Number(p.x);
+        const py = Number(p.y);
+        if (Number.isFinite(px)) me.tx = px;
+        if (Number.isFinite(py)) me.ty = py;
+        if (p.direction) me.direction = p.direction;
+        const jt = Number(p.gauntletJumpTicks);
+        meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+        meGauntletJumpVis = meGauntletJumpTicks;
+        const sc = Number(p.gauntletScore);
+        me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+        me.gauntletEliminated = !!p.gauntletEliminated;
+      } else {
+        const o = others.get(p.id) ?? others.get(pid);
+        if (o) {
+          const px = Number(p.x);
+          const py = Number(p.y);
+          if (Number.isFinite(px)) o.tx = px;
+          if (Number.isFinite(py)) o.ty = py;
+          if (p.direction) o.direction = p.direction;
+          const jt = Number(p.gauntletJumpTicks);
+          o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+          if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+          const sc = Number(p.gauntletScore);
+          o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+          o.gauntletEliminated = !!p.gauntletEliminated;
+        }
+      }
+    });
+    if (previewFillBots) {
+      applyGauntletPreviewBotsAfterSync();
+      emitGauntletPreviewRowsToServer();
+    }
+  });
+
+  socket.on('gauntlet-ended', (data) => {
+    cancelQuizCarryResultEndAfterTimeup();
+    gauntletEndsAtMs = null;
+    gauntletCrownRunHeldRemote = false;
+    gauntletCrownPregamePhase = null;
+    gauntletCrownLobbyReadyMap = {};
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    const gcc = document.getElementById('gauntlet-crown-countdown');
+    if (gcc) gcc.classList.add('is-hidden');
+    const hto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (hto) hto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    if (data && data.crownMission) {
+      showGauntletCrownMissionOverlay(data.crownMission);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = data && data.reason === 'time' ? 'หมดเวลา · Time up' : 'เกมจบ · Game over';
+    }
+    msgEl.textContent = (data && data.message) || 'เกมพรมแดงจบแล้ว';
+    listEl.innerHTML = '';
+    const ranks = (data && data.rankings) || [];
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  });
+
+  socket.on('game-start', (ev) => {
+    if (!ev || !ev.mapId) return;
+    const applySnap = (md) => {
+      mapData = md;
+      if (ev.mapId != null && String(ev.mapId).trim() !== '') {
+        playSessionMapId = String(ev.mapId).trim();
+      }
+      if (mapData.gameType !== 'space_shooter') {
+        spaceShooterGameEnded = false;
+      }
+      if (mapData.gameType !== 'balloon_boss') {
+        balloonBossGameEnded = false;
+      }
+      if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+      tileSize = mapData.tileSize || 32;
+      gauntletObstacles = [];
+      gauntletObsRenderPrev = [];
+      gauntletObsRenderNext = [];
+      gauntletObsBlendT0 = 0;
+      mapBackgroundImg = null;
+      if (mapData.backgroundImage) {
+        mapBackgroundImg = new Image();
+        mapBackgroundImg.src = mapData.backgroundImage;
+      }
+      normalizeGridImageCellsOnMap(mapData);
+      loadMapGridImages();
+      if (mapData.gameType === 'gauntlet' && ev.peersSnap && Array.isArray(ev.peersSnap)) {
+        ev.peersSnap.forEach((p) => {
+          if (p.id != null && myId != null && String(p.id) === String(myId)) {
+            const px = Number(p.x);
+            const py = Number(p.y);
+            if (Number.isFinite(px)) { me.x = px; me.tx = px; }
+            if (Number.isFinite(py)) { me.y = py; me.ty = py; }
+            me.direction = p.direction || me.direction;
+            const jt = Number(p.gauntletJumpTicks);
+            meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+            meGauntletJumpVis = meGauntletJumpTicks;
+            const sc = Number(p.gauntletScore);
+            me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+            me.gauntletEliminated = !!p.gauntletEliminated;
+          } else {
+            const o = others.get(p.id) ?? others.get(String(p.id));
+            if (o) {
+              const px = Number(p.x);
+              const py = Number(p.y);
+              if (Number.isFinite(px)) { o.x = px; o.tx = px; }
+              if (Number.isFinite(py)) { o.y = py; o.ty = py; }
+              o.direction = p.direction || o.direction;
+              const jt = Number(p.gauntletJumpTicks);
+              o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+              o.gauntletJumpVis = o.gauntletJumpTicks;
+              const sc = Number(p.gauntletScore);
+              o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+              o.gauntletEliminated = !!p.gauntletEliminated;
+            }
+          }
+        });
+      } else {
+        meGauntletJumpTicks = 0;
+        meGauntletJumpVis = 0;
+        me.gauntletScore = 0;
+        me.gauntletEliminated = false;
+        others.forEach((o) => {
+          o.gauntletJumpTicks = 0;
+          o.gauntletJumpVis = 0;
+          o.gauntletScore = 0;
+          o.gauntletEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'gauntlet') {
+        if (ev.gauntletEndsAt != null) {
+          const ge = Number(ev.gauntletEndsAt);
+          gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+        } else {
+          gauntletEndsAtMs = null;
+        }
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {});
+        if (String(ev.mapId || '') === GAUNTLET_FACE_RIGHT_MAP_ID) {
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc0 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc0) gcc0.classList.add('is-hidden');
+          setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 60);
+        } else {
+          const hto2 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto2) hto2.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc1 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc1) gcc1.classList.add('is-hidden');
+        }
+      } else {
+        gauntletEndsAtMs = null;
+        const skipHideCrownShell = mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay();
+        if (!skipHideCrownShell) {
+          const hto3 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto3) hto3.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+        }
+        gauntletCrownPregamePhase = null;
+        gauntletCrownLobbyReadyMap = {};
+        if (gauntletCrownCountdownTimer) {
+          clearTimeout(gauntletCrownCountdownTimer);
+          gauntletCrownCountdownTimer = null;
+        }
+        const gcc2 = document.getElementById('gauntlet-crown-countdown');
+        if (gcc2) gcc2.classList.add('is-hidden');
+      }
+      if (mapData.gameType !== 'gauntlet') {
+        me.tx = null;
+        me.ty = null;
+      }
+      const gauntletOv = document.getElementById('gauntlet-ended-overlay');
+      if (gauntletOv) gauntletOv.classList.add('is-hidden');
+      const gcmOv = document.getElementById('gauntlet-crown-mission-overlay');
+      if (gcmOv) gcmOv.classList.add('is-hidden');
+      if (mapData.gameType === 'stack') {
+        if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+        if (!mapData.stackLandArea) mapData.stackLandArea = [];
+        rebalancePreviewBots();
+        lastStackTickMs = performance.now();
+        resetStackMinigameState();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            else reapplyStackMiniSizingFromGlobals();
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          });
+      } else {
+        stackMini = null;
+      }
+      if (mapData.gameType === 'jump_survive') {
+        if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+        if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+        normalizeJumpSurvivePlatformAreaInPlay(mapData);
+        jumpSurviveEliminated = false;
+        jumpSurviveGameEnded = false;
+        if (jumperMissionCountdownTimer) {
+          clearTimeout(jumperMissionCountdownTimer);
+          jumperMissionCountdownTimer = null;
+        }
+        if (isJumpSurviveMissionUiMapPlay()) {
+          jumpSurviveMissionPhase = 'howto';
+          hideConflictingOverlaysForJumpSurviveMission();
+          applyJumpSurviveJumperPanelImages();
+          fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+            .then((r) => (r.ok ? r.json() : null))
+            .then((t) => { if (t) applyGauntletTimingFromServer(t); })
+            .catch(() => {});
+          setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 60);
+        } else {
+          jumpSurviveMissionPhase = null;
+          jumpSurviveInitRuntime();
+        }
+      }
+      if (mapData.gameType === 'space_shooter') {
+        spaceShooterGameEnded = false;
+        normalizeShooterSpawnSlotsInPlay(mapData);
+        spaceShooterBullets = [];
+        spaceShooterAsteroids = [];
+        spaceShooterPopups = [];
+        spaceShooterLastTickMs = performance.now();
+        spaceShooterSpawnAccMs = 0;
+        spaceShooterFireCd = 0;
+        spaceShooterSessionStartMs = performance.now();
+        spaceShooterLastMoveEmit = 0;
+      }
+      if (mapData.gameType === 'balloon_boss') {
+        balloonBossGameEnded = false;
+        normalizeBalloonBossPlayerSlotsInPlay(mapData);
+        balloonBossPendingShots = [];
+        balloonBossPlayerBullets = [];
+        balloonBossBossBullets = [];
+        balloonBossHitFx = [];
+        balloonBossLastTickMs = performance.now();
+        balloonBossPlayerFireCd = 0;
+        balloonBossSessionStartMs = performance.now();
+        balloonBossLastMoveEmit = 0;
+        balloonBossBossFireAcc = 0;
+        me.balloonBossScore = 0;
+        me.balloonBossBalloons = balloonBossBalloonsStartPlay();
+        me.balloonBossEliminated = false;
+        others.forEach((o) => {
+          o.balloonBossScore = 0;
+          o.balloonBossBalloons = balloonBossBalloonsStartPlay();
+          o.balloonBossEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'quiz_battle') {
+        if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+        if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+        normalizeQuizBattlePathInPlay(mapData);
+        normalizeQuizBattleDomeInPlay(mapData);
+        if (quizBattlePathModeActive(mapData)) {
+          const ms = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+          me.x = ms.x;
+          me.y = ms.y;
+          others.forEach((o) => {
+            const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+            o.x = s.x;
+            o.y = s.y;
+          });
+        }
+      }
+      var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+        : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+          : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+      var prevTag = previewMode ? '[ทดสอบ] ' : '';
+      document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+      if (isQuiz()) setupPlayQuizUi();
+      else if (isQuizCarry()) setupPlayQuizCarryUi();
+      else if (isQuizBattle()) setupPlayQuizBattleUi();
+      else teardownPlayQuizUi();
+      resizeCanvas();
+      if (mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'gauntlet') {
+        applyGauntletPreviewSpawnLayout(true);
+        emitGauntletPreviewRowsToServer();
+      }
+      if (previewFillBots && mapData.gameType === 'jump_survive') {
+        applyJumpSurvivePreviewSpawnLayout(true);
+      }
+      if (previewFillBots && mapData.gameType === 'space_shooter') {
+        applySpaceShooterSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+    };
+    fetch(BASE + '/api/maps/' + encodeURIComponent(ev.mapId))
+      .then((r) => (r.ok ? r.json() : null))
+      .then((md) => { if (md) applySnap(md); });
+  });
+
+  function resizeCanvas() {
+    const vw = window.innerWidth || document.documentElement.clientWidth || 800;
+    const vh = window.innerHeight || document.documentElement.clientHeight || 600;
+    const header = document.querySelector('.game-header');
+    const headerH = header && header.offsetHeight ? header.offsetHeight : 48;
+    const parent = canvas && canvas.parentElement;
+    let cw = canvas.clientWidth || 0;
+    let ch = canvas.clientHeight || 0;
+    if (parent && parent.clientWidth > 80) cw = Math.max(cw, parent.clientWidth);
+    if (parent && parent.clientHeight > 80) ch = Math.max(ch, parent.clientHeight);
+    if (ch < 120) ch = Math.max(240, vh - headerH - 6);
+    if (cw < 120) cw = Math.max(320, vw);
+    canvas.width = Math.max(320, cw);
+    canvas.height = Math.max(240, ch);
+    syncQuizCarryEmbedCountdownLayout();
+  }
+
+  // ให้ scroll wheel ใช้ซูมเข้า/ออกแบบง่าย ๆ
+  canvas.addEventListener('wheel', (e) => {
+    e.preventDefault();
+    const factor = e.deltaY < 0 ? 1.1 : 0.9;
+    zoom = Math.max(0.7, Math.min(2.5, zoom * factor));
+  }, { passive: false });
+  canvas.addEventListener('click', (e) => {
+    if (!mapData || !isStack() || isChatFocused()) return;
+    tryHumanStackDrop();
+  });
+  canvas.addEventListener('dblclick', (e) => {
+    if (!mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss() || isChatFocused() || isQuizCarryEmbedCountdownBlockingMovement()) return;
+    const r = canvas.getBoundingClientRect();
+    const sx = e.clientX - r.left;
+    const sy = e.clientY - r.top;
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const gx = (sx - canvas.width / 2) / zoom + camX;
+    const gy = (sy - canvas.height / 2) / zoom + camY;
+    const tx = Math.floor(gx / tileSize);
+    const ty = Math.floor(gy / tileSize);
+    const mw = mapData.width || 20, mh = mapData.height || 15;
+    if (tx < 0 || tx >= mw || ty < 0 || ty >= mh) return;
+    if (!canWalkLikeLobby(tx + 0.5, ty + 0.5)) return;
+    const path = pathfindPlay(me.x, me.y, tx + 0.5, ty + 0.5);
+    if (path.length <= 1) return;
+    playPath = path.slice(1);
+  });
+
+  function getCharacterFootprintWH(md) {
+    if (!md) return { cw: 1, ch: 1 };
+    let cw = Math.floor(Number(md.characterCellsW));
+    let ch = Math.floor(Number(md.characterCellsH));
+    const hasW = Number.isFinite(cw) && cw >= 1;
+    const hasH = Number.isFinite(ch) && ch >= 1;
+    if (hasW && hasH) {
+      return { cw: Math.max(1, Math.min(4, cw)), ch: Math.max(1, Math.min(4, ch)) };
+    }
+    const leg = Math.max(1, Math.min(4, Math.floor(Number(md.characterCells)) || 1));
+    return { cw: leg, ch: leg };
+  }
+
+  /**
+   * ขนาดช่องที่ใช้ชนกำแพง (objects=1) เท่านั้น — ชิดเท้า (ล่าง) + กลางแนวนอน · เล็กกว่า footprint = ส่วนบนไม่ติดกำแพง
+   */
+  function getCharacterCollisionFootprintWH(md) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let colW = Math.floor(Number(md.characterCollisionW));
+    let colH = Math.floor(Number(md.characterCollisionH));
+    if (!Number.isFinite(colW) || colW < 1) colW = cw;
+    if (!Number.isFinite(colH) || colH < 1) colH = ch;
+    colW = Math.max(1, Math.min(cw, colW));
+    colH = Math.max(1, Math.min(ch, colH));
+    return { cw, ch, colW, colH };
+  }
+
+  /** กันตัวละคร footprint ล้นออกนอกแมป — เดิมใช้ w-0.01 ทำให้ cw/ch>1 ชนขอบแล้วตรรกะเดินค้าง */
+  function clampPlayEntityFootprintToMap(oEnt, md) {
+    if (!oEnt || !md) return;
+    const w = md.width || 20, h = md.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const maxX = Math.max(0, w - cw + 0.999);
+    const maxY = Math.max(0, h - ch + 0.999);
+    if (!Number.isFinite(oEnt.x)) oEnt.x = 0.5;
+    if (!Number.isFinite(oEnt.y)) oEnt.y = 0.5;
+    oEnt.x = Math.max(0, Math.min(maxX, oEnt.x));
+    oEnt.y = Math.max(0, Math.min(maxY, oEnt.y));
+  }
+
+  /** แยกบอท preview ที่ทับกันบนจุดเดียว (มักชนกันที่ขอบแมป) */
+  function separateClumpedPreviewBots() {
+    if (!previewFillBots || !mapData) return;
+    const ids = [...others.keys()].filter(isPreviewBotId);
+    const minD = 0.52;
+    const pushAmt = MOVE_SPEED * 0.5;
+    for (let i = 0; i < ids.length; i++) {
+      for (let j = i + 1; j < ids.length; j++) {
+        const a = others.get(ids[i]);
+        const b = others.get(ids[j]);
+        if (!a || !b) continue;
+        let ddx = b.x - a.x, ddy = b.y - a.y;
+        let d = Math.sqrt(ddx * ddx + ddy * ddy);
+        if (d >= minD) continue;
+        if (d < 1e-5) {
+          ddx = (i + j * 2) % 2 === 0 ? 1 : -1;
+          ddy = ((i + j) % 3) - 1;
+          d = Math.sqrt(ddx * ddx + ddy * ddy) || 1;
+        }
+        const ux = -ddx / d, uy = -ddy / d;
+        const vx = ddx / d, vy = ddy / d;
+        const ax2 = a.x + ux * pushAmt, ay2 = a.y + uy * pushAmt;
+        const bx2 = b.x + vx * pushAmt, by2 = b.y + vy * pushAmt;
+        if (canWalkLikeLobbyForBot(ax2, ay2, a.x, a.y, a)) { a.x = ax2; a.y = ay2; }
+        if (canWalkLikeLobbyForBot(bx2, by2, b.x, b.y, b)) { b.x = bx2; b.y = by2; }
+        clampPlayEntityFootprintToMap(a, mapData);
+        clampPlayEntityFootprintToMap(b, mapData);
+      }
+    }
+  }
+
+  function quizTilesFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const maxTx = Math.min(w - 1, minTx + cw - 1);
+    const maxTy = Math.min(h - 1, minTy + ch - 1);
+    for (let ty = minTy; ty <= maxTy; ty++) {
+      for (let tx = minTx; tx <= maxTx; tx++) {
+        if (tx >= 0 && ty >= 0) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  /** ร่าง (cw×ch) ของผู้เล่นที่ (px,py) ครอบคลุมช่อง (tx,ty) หรือไม่ — ใช้กับ blockPlayer แทนการเช็คแค่มุมซ้ายบน */
+  function playEntityFootprintContainsTile(px, py, tx, ty) {
+    return quizTilesFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /**
+   * กล่องตรวจโซนห้ามซ้อน (blockPlayer) — วางเหมือนชนกำแพง: กลางแนวนอน + ชิดเท้า
+   * blockPlayerSeparationW/H: 0 = ใช้เต็มความกว้าง/สูงตัว · ค่าอื่น = จำกัด 1..cw / 1..ch
+   * รองรับ legacy blockPlayerSeparation เมื่อยังไม่มี W/H ใน JSON
+   */
+  function resolveBlockPlayerNoOverlapBoxWH(md) {
+    const m = md || mapData;
+    if (!m) return { cw: 1, ch: 1, boxW: 1, boxH: 1 };
+    const { cw, ch } = getCharacterFootprintWH(m);
+    let w = m.blockPlayerSeparationW != null && m.blockPlayerSeparationW !== '' ? Math.floor(Number(m.blockPlayerSeparationW)) : NaN;
+    let h = m.blockPlayerSeparationH != null && m.blockPlayerSeparationH !== '' ? Math.floor(Number(m.blockPlayerSeparationH)) : NaN;
+    const leg = m.blockPlayerSeparation != null && m.blockPlayerSeparation !== '' ? Math.floor(Number(m.blockPlayerSeparation)) : NaN;
+    const hasW = Number.isFinite(w) && w >= 0;
+    const hasH = Number.isFinite(h) && h >= 0;
+    if (!hasW && !hasH && Number.isFinite(leg) && leg >= 1) {
+      w = Math.min(leg, cw);
+      h = Math.min(leg, ch);
+    } else {
+      if (!hasW) w = 0;
+      if (!hasH) h = 0;
+    }
+    const boxW = !w || w <= 0 ? cw : Math.max(1, Math.min(cw, w));
+    const boxH = !h || h <= 0 ? ch : Math.max(1, Math.min(ch, h));
+    return { cw, ch, boxW, boxH };
+  }
+
+  /** ช่องกริดที่ถือว่า “ผู้เล่นที่ (px,py) กินพื้นที่” สำหรับตรวจโซน blockPlayer — กล่องเดียวกับแนวชนกำแพง */
+  function quizTilesBlockPlayerPeerFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, boxW, boxH } = resolveBlockPlayerNoOverlapBoxWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - boxW) / 2);
+    const offY = minTy + (ch - boxH);
+    for (let ty = offY; ty < offY + boxH; ty++) {
+      for (let tx = offX; tx < offX + boxW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function playPeerBlockPlayerOccupiesTile(px, py, tx, ty) {
+    return quizTilesBlockPlayerPeerFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /** Footprint ชนกำแพง (objects=1) เท่านั้น — hub / interactive / blockPlayer / quiz ใช้ quizTilesFootprintPlay = เต็ม characterCells */
+  function quizTilesWallCollisionFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, colW, colH } = getCharacterCollisionFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - colW) / 2);
+    const offY = minTy + (ch - colH);
+    for (let ty = offY; ty < offY + colH; ty++) {
+      for (let tx = offX; tx < offX + colW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function quizAnswerTileForbiddenForLock(lock, tx, ty) {
+    if (!lock || lock.eliminated) return false;
+    if (!mapData) return false;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    if (lock.cannotTrue && qt && qt[ty] && qt[ty][tx] === 1) return true;
+    if (lock.cannotFalse && qf && qf[ty] && qf[ty][tx] === 1) return true;
+    return false;
+  }
+
+  function quizAnswerTileForbiddenPlay(tx, ty) {
+    if (!playQuizPlayerLocal) return false;
+    return quizAnswerTileForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, tx, ty);
+  }
+
+  /** ยืนทับโซนต้องห้ามเมื่อโดนล็อก — ใช้กับ pathfind ปลายทาง / คลิก */
+  function quizLockFootprintBlocksForLock(lock, px, py) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockFootprintBlocksPlay(px, py) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockFootprintBlocksForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, px, py);
+  }
+
+  /** บล็อกเฉพาะการ «เข้า» ช่องตอบใหม่ — ให้เดินออกจากโซนได้ถ้าเคยยืนผิดแล้ว */
+  function quizLockWouldEnterForbiddenForLock(lock, ox, oy, nx, ny) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    const fromS = quizTilesFootprintPlay(ox, oy);
+    const toS = quizTilesFootprintPlay(nx, ny);
+    for (const k of toS) {
+      if (fromS.has(k)) continue;
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockWouldEnterForbiddenPlay(ox, oy, nx, ny) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockWouldEnterForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, ox, oy, nx, ny);
+  }
+
+  function botQuizLock(o) {
+    return {
+      cannotTrue: !!(o && o.quizCannotTrue),
+      cannotFalse: !!(o && o.quizCannotFalse),
+      eliminated: false,
+    };
+  }
+
+  /** Same walkability as room-lobby `canWalkLobby` (LobbyA / hall). */
+  function canWalkLikeLobby(x, y, fromX, fromY) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTiles = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTiles.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, o] of others) {
+          if (playPeerBlockPlayerOccupiesTile(o.x, o.y, tx, ty)) return false;
+        }
+      }
+    }
+    if (isQuiz() && playQuizPlayerLocal && !playQuizPlayerLocal.eliminated) {
+      const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+      if (hasFrom) {
+        if (quizLockWouldEnterForbiddenPlay(fromX, fromY, x, y)) return false;
+      } else if (quizLockFootprintBlocksPlay(x, y)) {
+        return false;
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  function canWalkLikeLobbyForBot(x, y, fromX, fromY, o) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTilesB = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTilesB) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTilesB.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, peer] of others) {
+          if (o && peer === o) continue;
+          if (playPeerBlockPlayerOccupiesTile(peer.x, peer.y, tx, ty)) return false;
+        }
+        if (o && playPeerBlockPlayerOccupiesTile(me.x, me.y, tx, ty)) return false;
+      }
+    }
+    if (isQuiz()) {
+      const lock = botQuizLock(o);
+      if (lock.cannotTrue || lock.cannotFalse) {
+        const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+        if (hasFrom) {
+          if (quizLockWouldEnterForbiddenForLock(lock, fromX, fromY, x, y)) return false;
+        } else if (quizLockFootprintBlocksForLock(lock, x, y)) {
+          return false;
+        }
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  /** ถ้าสปอว์น/โหลดมาทับโซน hub ให้หาจุดใกล้ ๆ ที่ footprint ไม่ทับ hub */
+  function snapPositionOutOfQuizCarryHubIfNeeded(x, y) {
+    if (!mapData || !isQuizCarry()) return { x, y };
+    if (!quizCarryFootprintOverlapsHub(x, y)) return { x, y };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const maxR = Math.max(w, h) + 6;
+    for (let r = 1; r <= maxR; r++) {
+      for (let dy = -r; dy <= r; dy++) {
+        for (let dx = -r; dx <= r; dx++) {
+          if (Math.max(Math.abs(dx), Math.abs(dy)) !== r) continue;
+          const nx = x + dx * 0.45;
+          const ny = y + dy * 0.45;
+          if (nx < 0 || ny < 0 || nx > w - 0.02 || ny > h - 0.02) continue;
+          if (quizCarryFootprintOverlapsHub(nx, ny)) continue;
+          if (!canWalkLikeLobby(nx, ny, NaN, NaN)) continue;
+          return { x: nx, y: ny };
+        }
+      }
+    }
+    return { x, y };
+  }
+
+  function stepPreviewBotAlongPath(o, w, h) {
+    const path = o.botPath;
+    if (!path || !path.length) return;
+    const way = path[0];
+    const dx = way.x - o.x, dy = way.y - o.y;
+    const dist = Math.sqrt(dx * dx + dy * dy);
+    if (dist <= PATH_ARRIVE_THRESH) {
+      path.shift();
+      while (path.length > 0) {
+        const w2 = path[0];
+        const ux = w2.x - o.x, uy = w2.y - o.y;
+        if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+        path.shift();
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+      return;
+    }
+    const len = dist || 1;
+    const pathStepMul = (previewFillBots && editorEmbedReturn) ? 0.56 : 1;
+    const step = Math.min(MOVE_SPEED * 1.28 * pathStepMul, len);
+    const nx = o.x + (dx / len) * step;
+    const ny = o.y + (dy / len) * step;
+    if (Math.abs(dy) > Math.abs(dx)) o.direction = dy > 0 ? 'down' : 'up';
+    else if (Math.abs(dx) > 1e-6) o.direction = dx > 0 ? 'right' : 'left';
+    const ox = o.x, oy = o.y;
+    const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else if (!pathStrict) {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        /* เส้นตรงไป waypoint อาจตัดมุม hub / block — ลองก้าวแนวแกนตามทิศหลักอย่างใดอย่างหนึ่ง */
+        const cstep = Math.min(MOVE_SPEED * 1.2 * pathStepMul, Math.max(Math.abs(dx), Math.abs(dy), 1e-4));
+        const sx = dx > 1e-4 ? 1 : dx < -1e-4 ? -1 : 0;
+        const sy = dy > 1e-4 ? 1 : dy < -1e-4 ? -1 : 0;
+        const tryAxisX = () => {
+          if (sx === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x + sx * cstep, o.y, o.x, o.y, o)) return false;
+          o.x += sx * cstep;
+          return true;
+        };
+        const tryAxisY = () => {
+          if (sy === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x, o.y + sy * cstep, o.x, o.y, o)) return false;
+          o.y += sy * cstep;
+          return true;
+        };
+        if (Math.abs(dx) >= Math.abs(dy)) {
+          if (!tryAxisX()) tryAxisY();
+        } else {
+          if (!tryAxisY()) tryAxisX();
+        }
+      }
+    }
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) {
+      o.botIsWalking = true;
+      o.botPathStuckTicks = 0;
+    } else {
+      o.botPathStuckTicks = (o.botPathStuckTicks | 0) + 1;
+      if ((o.botPathStuckTicks | 0) >= 20) {
+        o.botPathStuckTicks = 0;
+        if (path.length) path.shift();
+        if (isQuizCarry() && previewFillBots) o.botQuizCarryPathfindAfter = 0;
+      }
+    }
+  }
+
+  function pickRandomPreviewBotWanderDir() {
+    const dirs = [[0, -1], [0, 1], [-1, 0], [1, 0]];
+    return dirs[Math.floor(Math.random() * dirs.length)];
+  }
+
+  function stepPreviewBots() {
+    if (!playBotsEnabled() || !mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss()) return;
+    if (isQuizCarry()) {
+      stepQuizCarryPreviewBots();
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const now = Date.now();
+    const inAnswerPhase = previewMode && isQuiz() && previewQuizStep === 'answer';
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botIsWalking = false;
+      if (inAnswerPhase && o.botPath && o.botPath.length > 0 && !o.botAnswerWander) {
+        stepPreviewBotAlongPath(o, w, h);
+        return;
+      }
+      if (inAnswerPhase && o.botPath && o.botPath.length === 0 && !o.botAnswerWander) {
+        return;
+      }
+      /* ก่อนตอบ / พัก / บอทสับสน: เดินทุกเฟรมตามทิศ (เหมือนผู้เล่นกดค้าง) — เดิมรอเป็นจังหวะแล้วก้าวทีละครั้งเลยดูกระตุก */
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+      if (now >= o.botWanderNextTurn) {
+        o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+        if (Math.random() < 0.55) {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+        }
+      }
+      const accX = o.botWanderDx;
+      const accY = o.botWanderDy;
+      if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+      else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+      const step = MOVE_SPEED;
+      const nx = o.x + accX * step;
+      const ny = o.y + accY * step;
+      const ox = o.x, oy = o.y;
+      const pathStrictW = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+        o.x = nx;
+        o.y = ny;
+      } else if (!pathStrictW) {
+        if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+          o.x = nx;
+        } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+          o.y = ny;
+        } else {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+          o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+        }
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+      if (!Number.isFinite(o.x)) o.x = 0.5;
+      if (!Number.isFinite(o.y)) o.y = 0.5;
+      clampPlayEntityFootprintToMap(o, mapData);
+      if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+  }
+
+  /** A* เหมือน room-lobby — double-click ไปจุดบนแผนที่ */
+  function pathfindPlay(fromX, fromY, toX, toY) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobby(tx + 0.5, ty + 0.5)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobby(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  function pathfindPlayForBot(fromX, fromY, toX, toY, o) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobbyForBot(tx + 0.5, ty + 0.5, NaN, NaN, o)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobbyForBot(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5, o)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  let playPath = [];
+
+  function drawGauntletLaserColumnScreen(rx, ry, rw, rh) {
+    ctx.save();
+    ctx.fillStyle = gauntletLaserFillColor;
+    ctx.fillRect(rx, ry, rw, rh);
+    const topRec = gauntletLaserTopUrl ? ensureGauntletAssetImage(gauntletLaserTopUrl) : null;
+    const botRec = gauntletLaserBottomUrl ? ensureGauntletAssetImage(gauntletLaserBottomUrl) : null;
+    const lineRec = gauntletLaserLineUrl ? ensureGauntletAssetImage(gauntletLaserLineUrl) : null;
+    let topH = 0;
+    let botH = 0;
+    if (topRec && topRec.img.complete && topRec.img.naturalWidth > 0) {
+      topH = Math.min(rh * 0.4, rw * topRec.img.naturalHeight / topRec.img.naturalWidth);
+    }
+    if (botRec && botRec.img.complete && botRec.img.naturalWidth > 0) {
+      botH = Math.min(rh * 0.4, rw * botRec.img.naturalHeight / botRec.img.naturalWidth);
+    }
+    /* เส้นกลาง tile ทั้งความสูงคอลัมน์ แล้วค่อยวาดหัว/ท้ายทับ — ให้ลำแสงต่อเนื่องแบบสินทรัพย์รวม (รูปอ้างอิง) */
+    if (lineRec && lineRec.img.complete && lineRec.img.naturalWidth > 0 && rh > 1) {
+      const iw = lineRec.img.naturalWidth;
+      const ih = lineRec.img.naturalHeight;
+      const scale = rw / iw;
+      const step = Math.max(1, ih * scale);
+      let y = ry;
+      while (y < ry + rh) {
+        const piece = Math.min(step, ry + rh - y);
+        const srcH = piece / scale;
+        try {
+          ctx.drawImage(lineRec.img, 0, 0, iw, srcH, rx, y, rw, piece);
+        } catch (e) { /* ignore */ }
+        y += piece;
+      }
+    }
+    if (topH > 0 && topRec) {
+      try { ctx.drawImage(topRec.img, rx, ry, rw, topH); } catch (e) { /* ignore */ }
+    }
+    if (botH > 0 && botRec) {
+      try { ctx.drawImage(botRec.img, rx, ry + rh - botH, rw, botH); } catch (e) { /* ignore */ }
+    }
+    const lw = Number(gauntletLaserLineWidthPx) || 0;
+    if (lw > 0) {
+      ctx.strokeStyle = gauntletLaserStrokeColor;
+      ctx.lineWidth = lw;
+      ctx.strokeRect(rx + lw / 2, ry + lw / 2, rw - lw, rh - lw);
+    }
+    ctx.restore();
+  }
+
+  /** Stack preview: HUD แนว cyberdeck — SCORE ซ้าย, ตาปัจจุบันขวา, เทอร์มินัลล่างซ้าย */
+  function drawStackPreviewCyberHud(ctx, cw, ch) {
+    if (!playBotsEnabled() || !stackMini || !mapData || !isStack()) return;
+    const now = Date.now();
+    const pad = 12;
+    const currentSeat = getStackPreviewCurrentSeat();
+    const order = stackPreviewTurnOrder;
+    const mono = '11px ui-monospace, "Cascadia Mono", Consolas, monospace';
+    const monoSm = '9px ui-monospace, Consolas, monospace';
+    const lives = stackMini.lives != null ? stackMini.lives : 3;
+    const lifeSlots = 3;
+    const teamScore = stackMini.score || 0;
+    const combo = stackMini.combo || 0;
+
+    function roundRectPath(x, y, w, h, r) {
+      const rr = Math.min(r, w / 2, h / 2);
+      ctx.beginPath();
+      ctx.moveTo(x + rr, y);
+      ctx.arcTo(x + w, y, x + w, y + h, rr);
+      ctx.arcTo(x + w, y + h, x, y + h, rr);
+      ctx.arcTo(x, y + h, x, y, rr);
+      ctx.arcTo(x, y, x + w, y, rr);
+      ctx.closePath();
+    }
+
+    function drawHudAvatar(cx, baselineY, maxSize, characterId, playTint) {
+      const timeMs = now;
+      const dir = 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, false);
+      const charImg = playTint ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, false, playTint) : rawImg;
+      let iw = 0; let ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      const ax = cx - maxSize / 2;
+      const ay = baselineY - maxSize;
+      ctx.save();
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.clip();
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(maxSize / iw, maxSize / ih, 1);
+        const dw = iw * scale;
+        const dh = ih * scale;
+        ctx.drawImage(charImg, 0, 0, iw, ih, cx - dw / 2, baselineY - dh, dw, dh);
+      } else {
+        ctx.fillStyle = 'rgba(80, 200, 255, 0.35)';
+        ctx.fillRect(ax, ay, maxSize, maxSize);
+      }
+      ctx.restore();
+      ctx.strokeStyle = 'rgba(0, 234, 255, 0.5)';
+      ctx.lineWidth = 1.5;
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.stroke();
+    }
+
+    function resolveEntryVisual(entry) {
+      if (entry.kind === 'human') {
+        return {
+          name: String(me.nickname || 'YOU').toUpperCase(),
+          score: me.stackPreviewHumanPts || 0,
+          characterId: me.characterId,
+          playTint: me.playTint || playTintFromPeerId(String(myId || 'me')),
+        };
+      }
+      const o = entry.botId ? others.get(entry.botId) : null;
+      return {
+        name: o ? String(o.nickname || 'BOT').replace(/\s+/g, ' ').toUpperCase().slice(0, 12) : '—',
+        score: o ? (o.stackBotScore || 0) : 0,
+        characterId: o ? o.characterId : null,
+        playTint: o ? (o.playTint || playTintFromPeerId(entry.botId)) : null,
+      };
+    }
+
+    ctx.save();
+    ctx.setTransform(1, 0, 0, 1, 0, 0);
+
+    const boardW = Math.min(248, Math.max(200, cw * 0.36));
+    const rowH = 42;
+    const headH = 38;
+    const boardH = headH + stackTurnCount * rowH + 10;
+
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(0, 230, 255, 0.5)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.stroke();
+
+    ctx.fillStyle = '#5cefff';
+    ctx.font = 'bold 12px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('SCORE', pad + 14, 16);
+    ctx.fillStyle = 'rgba(94, 239, 255, 0.55)';
+    ctx.font = monoSm;
+    ctx.fillText('shared stack · P1–P6', pad + 62, 18);
+
+    let rowY = 8 + headH;
+    const drawRows = (entries) => {
+      entries.forEach((entry) => {
+        const isCurrent = entry.seat === currentSeat;
+        const v = resolveEntryVisual(entry);
+        let actionFlash = false;
+        if (entry.kind === 'human') {
+          actionFlash = lastStackPreviewActorId === '__human__' && now < lastStackPreviewActorUntil;
+        } else if (entry.botId) {
+          const ob = others.get(entry.botId);
+          actionFlash = !!(ob && ((now < (ob.stackBotGlowUntil || 0)) || (entry.botId === lastStackPreviewActorId && now < lastStackPreviewActorUntil)));
+        }
+        if (isCurrent) {
+          ctx.fillStyle = 'rgba(255, 0, 180, 0.1)';
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.fill();
+          ctx.strokeStyle = 'rgba(0, 255, 220, 0.9)';
+          ctx.lineWidth = 2;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        } else if (actionFlash) {
+          ctx.strokeStyle = 'rgba(255, 214, 102, 0.65)';
+          ctx.lineWidth = 1.5;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        }
+        const avS = 34;
+        drawHudAvatar(pad + 10 + avS / 2, rowY + avS - 3, avS, v.characterId, v.playTint);
+        ctx.fillStyle = isCurrent ? '#e0f7ff' : '#89b4fa';
+        ctx.font = '600 10px ui-sans-serif, system-ui, sans-serif';
+        ctx.textBaseline = 'middle';
+        ctx.fillText('P' + entry.seat, pad + 14 + avS + 6, rowY + 12);
+        ctx.fillStyle = '#c0caf5';
+        ctx.font = 'bold 10px ' + mono;
+        ctx.fillText(v.name.slice(0, 11), pad + 14 + avS + 6, rowY + 28);
+        ctx.fillStyle = actionFlash ? '#ffe066' : '#7dfcff';
+        ctx.font = 'bold 13px ' + mono;
+        ctx.textAlign = 'right';
+        ctx.fillText(String(v.score), pad + boardW - 12, rowY + rowH / 2);
+        ctx.textAlign = 'left';
+        rowY += rowH;
+      });
+    };
+
+    if (order && order.length === stackTurnCount) {
+      drawRows(order);
+    } else {
+      const bots = [...others.keys()].filter(isPreviewBotId).sort();
+      const rows = [{ kind: 'human', seat: 1 }];
+      for (let i = 0; i < stackTurnCount - 1; i++) {
+        rows.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+      }
+      drawRows(rows);
+    }
+
+    const rightW = 136;
+    let rightX = cw - pad - rightW;
+    const topY = 8;
+    if (rightX < pad + boardW + 14) {
+      rightX = Math.max(pad, cw - pad - rightW);
+    }
+    const bigAv = Math.min(78, Math.max(56, ch * 0.11));
+    const turnPanelH = bigAv + 118;
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 154, 247, 0.55)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.stroke();
+
+    let curEntry = null;
+    if (order && order.length === stackTurnCount) {
+      curEntry = order.find((e) => e.seat === currentSeat) || null;
+    }
+    const curV = curEntry ? resolveEntryVisual(curEntry) : resolveEntryVisual({ kind: 'human', seat: 1 });
+    const framePad = 8;
+    const avCx = rightX + rightW / 2;
+    const bigFrameTop = topY + framePad - 2;
+    const bigFrameH = bigAv + 8;
+    ctx.strokeStyle = 'rgba(255, 120, 200, 0.75)';
+    ctx.lineWidth = 2;
+    roundRectPath(rightX + framePad - 2, topY + framePad - 2, rightW - (framePad - 2) * 2, bigAv + 8, 6);
+    ctx.stroke();
+    drawHudAvatar(avCx, bigFrameTop + bigFrameH - 4, bigAv, curV.characterId, curV.playTint);
+
+    ctx.fillStyle = '#f5c2e7';
+    ctx.font = 'bold 10px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'top';
+    ctx.fillText('ACTIVE NODE', rightX + rightW / 2, topY + bigAv + 22);
+    ctx.fillStyle = '#7dfcff';
+    ctx.font = 'bold 11px ' + mono;
+    ctx.fillText('P' + currentSeat + ' · ' + curV.name.slice(0, 10), rightX + rightW / 2, topY + bigAv + 38);
+
+    ctx.fillStyle = '#bb9af7';
+    ctx.font = '600 9px ui-sans-serif, system-ui, sans-serif';
+    ctx.fillText('SYSTEM INTEGRITY', rightX + rightW / 2, topY + bigAv + 58);
+    ctx.font = '14px sans-serif';
+    let heartStr = '';
+    for (let i = 0; i < lifeSlots; i++) {
+      heartStr += i < lives ? '♥ ' : '♡ ';
+    }
+    ctx.fillStyle = lives <= 1 ? '#f7768e' : '#9ece6a';
+    ctx.fillText(heartStr.trim(), rightX + rightW / 2, topY + bigAv + 74);
+
+    ctx.fillStyle = 'rgba(125, 252, 255, 0.85)';
+    ctx.font = monoSm;
+    ctx.fillText('TEAM ' + teamScore + ' · COMBO x' + combo, rightX + rightW / 2, topY + bigAv + 96);
+
+    const termW = Math.min(380, Math.max(220, cw * 0.42));
+    const termH = 86;
+    const termY = Math.max(boardH + 24, ch - termH - 52);
+    ctx.fillStyle = 'rgba(18, 8, 32, 0.88)';
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 100, 255, 0.45)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.stroke();
+
+    ctx.fillStyle = '#c099ff';
+    ctx.font = '600 10px ' + mono;
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('// NODE_LOG', pad + 10, termY + 8);
+    ctx.fillStyle = '#7dcfff';
+    ctx.font = monoSm;
+    let ly = termY + 26;
+    const logLines = stackPreviewHudLog.length
+      ? stackPreviewHudLog.slice(-5)
+      : ['>>> Awaiting stack sync…', '>>> Space / click = release (your turn only)'];
+    logLines.forEach((ln) => {
+      ctx.fillText(ln, pad + 10, ly);
+      ly += 12;
+    });
+
+    const decryptPct = Math.min(100, Math.floor((stackMini.layers.length || 0) * 11 + Math.min(40, teamScore * 3)));
+    const barY = termY + termH - 18;
+    const barW = termW - 20;
+    ctx.fillStyle = 'rgba(0,0,0,0.35)';
+    ctx.fillRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = 'rgba(0, 255, 200, 0.65)';
+    ctx.fillRect(pad + 10, barY, Math.max(4, barW * decryptPct / 100), 8);
+    ctx.strokeStyle = 'rgba(0, 234, 255, 0.4)';
+    ctx.strokeRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = '#94e2d5';
+    ctx.font = monoSm;
+    ctx.fillText('TOWER_LINK ' + decryptPct + '%', pad + 10, barY - 14);
+
+    ctx.restore();
+  }
+
+  function useCyberPlayHud() {
+    return !!(mapData && (isJumpSurvive() || isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry()));
+  }
+
+  /** Cyber HUD: quiz_carry ใช้ playLiveQuizScores (ถูก +QUIZ_CARRY_POINTS_PER_CORRECT ตอนส่งป้ายถูกที่ฮับ) */
+  function cyberHudQuizCarryPeerScore(peerId) {
+    if (peerId == null) return 0;
+    return Math.max(0, Number(playLiveQuizScores[peerId]) || 0);
+  }
+
+  function syncPlayCyberHud() {
+    const root = document.getElementById('play-cyber-hud');
+    const stackEl = document.getElementById('play-canvas-stack');
+    const on = useCyberPlayHud();
+    if (root) {
+      root.classList.toggle('is-hidden', !on);
+      root.setAttribute('aria-hidden', on ? 'false' : 'true');
+    }
+    if (stackEl) stackEl.classList.toggle('play-cyber-vignette', !!on);
+    const gw = document.querySelector('.game-wrap');
+    if (gw) gw.classList.toggle('play-cyber-active', !!on);
+    if (!on || !root) return;
+    const timeLabelEl = root.querySelector('.play-cyber-time-label');
+    if (timeLabelEl) timeLabelEl.style.display = isQuizCarry() ? 'none' : '';
+    const timeVal = document.getElementById('play-cyber-time-val');
+    const timeSub = document.getElementById('play-cyber-time-sub');
+    const portrait = document.getElementById('play-cyber-portrait-img');
+    const statusEl = document.getElementById('play-cyber-self-status');
+    const hintEl = document.getElementById('play-cyber-hint');
+    const previewEl = document.getElementById('play-cyber-preview-line');
+
+    if (timeSub) {
+      timeSub.textContent = isQuizCarry()
+        ? 'QUIZ CARRY · COURT — หยิบป้ายถูกแล้วส่งที่ฮับ (F / Grab)'
+        : (isGauntlet() ? 'GAUNTLET · SURVIVAL RUN'
+          : (isSpaceShooter() ? 'SPACE SHOOTER · ARCADE'
+            : (isBalloonBoss() ? 'BALLOON BOSS · MEGA VIRUS'
+              : (isJumpSurviveMissionUiMapPlay() ? 'JUMPER · SURVIVE — เหลือเวลา (วินาที) · TIME (sec)' : 'JUMP SURVIVE · NODE UPLINK'))));
+    }
+    if (timeVal) {
+      if (isQuizCarry()) {
+        if (quizCarrySessionEnded) {
+          timeVal.textContent = '0';
+        } else if (previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now()) {
+          const rem = Math.max(0, Math.ceil((quizCarryEmbedCountdownEndAt - Date.now()) / 1000));
+          timeVal.textContent = String(rem);
+        } else if (quizCarryPregameActive) {
+          timeVal.textContent = '···';
+        } else if (!quizCarryCurrent) {
+          timeVal.textContent = '—';
+        } else if (quizCarryOptionRevealAt > 0 && Date.now() < quizCarryOptionRevealAt) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryOptionRevealAt - Date.now()) / 1000)));
+        } else if (quizCarryAnswerCloseAt > Date.now()) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryAnswerCloseAt - Date.now()) / 1000)));
+        } else {
+          timeVal.textContent = '0';
+        }
+      } else if (isGauntlet()) {
+        if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) {
+          timeVal.textContent = '···';
+        } else if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+          const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+          const mm = Math.floor(rem / 60);
+          const ss = rem % 60;
+          timeVal.textContent = `${mm}:${String(ss).padStart(2, '0')}`;
+        } else if (gauntletRuntimeTimeLimitSec > 0) {
+          timeVal.textContent = '···';
+        } else {
+          timeVal.textContent = '∞';
+        }
+      } else if (isSpaceShooter()) {
+        if (spaceShooterGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = spaceShooterRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isBalloonBoss()) {
+        if (balloonBossGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = balloonBossRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) {
+          timeVal.textContent = jumpSurviveMissionPhase === 'howto' ? '···' : (jumpSurviveMissionPhase === 'countdown' ? '···' : '0');
+        } else {
+          const rem = jumpSurviveRemainingSecMission();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else {
+        const t = jumpSurviveSessionStartMs > 0
+          ? Math.max(0, Math.floor((performance.now() - jumpSurviveSessionStartMs) / 1000))
+          : 0;
+        timeVal.textContent = String(t);
+      }
+    }
+
+    if (portrait) {
+      const cid = me.characterId || getPlayCharacterId();
+      const dir = (isGauntletFaceRightMapMno9kb07() ? 'right' : (me.direction || 'down'));
+      const nowT = Date.now();
+      const walk = !!me.isWalking;
+      const rawImg = getAvatarImg(cid, dir, nowT, walk);
+      const tint = me.playTint || playTintFromPeerId(String(myId != null ? myId : 'me'));
+      const comp = rawImg && cid && tint
+        ? getPlayTintedAvatarSource(rawImg, cid, dir, nowT, walk, tint)
+        : rawImg;
+      if (comp && comp.tagName === 'CANVAS' && comp.width > 0) {
+        try {
+          portrait.src = comp.toDataURL('image/png');
+        } catch (e) {
+          if (rawImg && rawImg.src) portrait.src = rawImg.src;
+        }
+      } else if (comp && comp.src) {
+        portrait.src = comp.src;
+      } else if (rawImg && rawImg.src) {
+        portrait.src = rawImg.src;
+      }
+    }
+    if (statusEl) {
+      if (isQuizCarry() && quizCarrySessionEnded) {
+        statusEl.textContent = 'SESSION COMPLETE · จบชุดคำถาม';
+      } else if (isJumpSurvive() && jumpSurviveEliminated) {
+        statusEl.textContent = 'SPECTATOR · LINK SEVERED';
+      } else if (isBalloonBoss() && me.balloonBossEliminated) {
+        statusEl.textContent = 'SPECTATOR · BALLOONS GONE';
+      } else {
+        statusEl.textContent = 'OPERATOR ONLINE';
+      }
+    }
+    if (hintEl) {
+      if (isQuizCarry()) {
+        hintEl.textContent = quizCarrySessionEnded
+          ? 'ชุดคำถามจบแล้ว · Session ended — ดูคะแนนด้าน SCORE'
+          : ('ยืนโซนตัวเลือกแล้วกด F/Grab หยิบ · ถือป้ายถูกแล้วไปฮับส่ง — ถูก +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' แต้ม (correct +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' on hub)');
+      } else if (isJumpSurvive()) {
+        if (isJumpSurviveMissionUiMapPlay()) {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'คุณตกน้ำแล้ว — ดูเพื่อนต่อ — รอจบเพื่อรับคะแนน (ผู้รอดได้ 100 คะแนน)'
+            : 'กระโดดตามแท่น — หลีกหนาม/กับดักด้านล่าง · หมดเวลาแล้วสรุปคะแนน (ผู้รอด 100) · Space / W / ↑ กระโดด · A D / ← → เดิน';
+        } else {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'Spectate remaining nodes · Exit room to reset session'
+            : 'Space / W / ↑ jump · A D / arrows move · Hit ceiling/floor = out (watch others)';
+        }
+      } else if (isSpaceShooter()) {
+        hintEl.textContent = spaceShooterGameEnded
+          ? 'จบแล้ว · Session ended — ดูอันดับบน overlay / see rankings on overlay'
+          : 'A D / ← → = move · W S / ↑ ↓ = up/down (lower half of map only) · Space = fire · +5 per hit';
+      } else if (isBalloonBoss()) {
+        hintEl.textContent = balloonBossGameEnded
+          ? 'จบแล้ว · Session ended — see overlay'
+            : (me.balloonBossEliminated
+            ? 'คุณตกรอบแล้ว — ดูเพื่อนเล่น · You are out — spectate'
+            : 'ยานมีแรงเฉื่อย — A D / arrows / W S เร่งทิศทาง · ปล่อยปุ่มแล้วยังไหล (แรงหน่วง) · Space = ยิง (ดีเลย์) · ลูกโป้งหมด = ตกรอบ');
+      } else if (isGauntletCrownHeistMapPlay()) {
+        hintEl.textContent = 'Space / W / ↑ jump · Start 100 pts · Hit -10 · Fall off left edge = out · Rank bonus at end';
+      } else {
+        hintEl.textContent = 'Space / W / ↑ jump · Lanes + lasers · Clear = right + score';
+      }
+    }
+    if (previewEl) {
+      if (previewFillBots && mapData) {
+        const human = countPlayHumans();
+        const bots = [...others.keys()].filter(isPreviewBotId).length;
+        previewEl.textContent = `SIM · humans ${human} + bots ${bots} · target ${previewTargetHeadcount}`;
+        previewEl.classList.remove('is-hidden');
+      } else {
+        previewEl.textContent = '';
+        previewEl.classList.add('is-hidden');
+      }
+    }
+
+    const ul = document.getElementById('play-cyber-score-list');
+    if (!ul) return;
+    const safeYv = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const jumpMissionHud = isJumpSurvive() && isJumpSurviveMissionUiMapPlay();
+    const rows = [];
+    rows.push({
+      id: myId,
+      nickname: me.nickname || nick,
+      characterId: me.characterId || getPlayCharacterId(),
+      score: isQuizCarry() ? cyberHudQuizCarryPeerScore(myId)
+        : (isGauntlet() ? (me.gauntletScore || 0)
+          : (isSpaceShooter() ? (me.spaceShooterScore || 0)
+            : (isBalloonBoss() ? (me.balloonBossScore || 0)
+              : (jumpMissionHud ? (jumpSurviveEliminated ? 0 : 100) : 0)))),
+      y: safeYv(me.y),
+      eliminated: !!(isJumpSurvive() && jumpSurviveEliminated) || !!(isBalloonBoss() && me.balloonBossEliminated)
+        || !!(isGauntletCrownHeistMapPlay() && me.gauntletEliminated),
+      isMe: true,
+    });
+    others.forEach((o, id) => {
+      rows.push({
+        id,
+        nickname: o.nickname || id.slice(0, 8),
+        characterId: o.characterId,
+        score: isQuizCarry() ? cyberHudQuizCarryPeerScore(id)
+          : (isGauntlet() ? (o.gauntletScore || 0)
+            : (isSpaceShooter() ? (o.spaceShooterScore || 0)
+              : (isBalloonBoss() ? (o.balloonBossScore || 0)
+                : (jumpMissionHud ? (o.jumpSurviveEliminated ? 0 : 100) : 0)))),
+        y: safeYv(o.y),
+        eliminated: !!(isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated)
+          || !!(isBalloonBoss() && o.balloonBossEliminated)
+          || !!(isGauntletCrownHeistMapPlay() && o.gauntletEliminated),
+        isMe: false,
+      });
+    });
+    let leaderId = null;
+    if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+      let mx = -1;
+      for (let i = 0; i < rows.length; i++) {
+        if (rows[i].score > mx) {
+          mx = rows[i].score;
+          leaderId = rows[i].id;
+        }
+      }
+    } else {
+      let best = Infinity;
+      for (let i = 0; i < rows.length; i++) {
+        if (!rows[i].eliminated && rows[i].y < best) {
+          best = rows[i].y;
+          leaderId = rows[i].id;
+        }
+      }
+    }
+    rows.sort((a, b) => {
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        if (b.score !== a.score) return b.score - a.score;
+        if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+        return String(a.nickname || '').localeCompare(String(b.nickname || ''), 'th');
+      }
+      if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+      return a.y - b.y;
+    });
+
+    ul.innerHTML = '';
+    const cap = 8;
+    for (let r = 0; r < Math.min(cap, rows.length); r++) {
+      const row = rows[r];
+      const li = document.createElement('li');
+      li.className = 'play-cyber-score-row' + (row.isMe ? ' is-me' : '') + (row.eliminated ? ' is-out' : '');
+      const av = document.createElement('img');
+      av.className = 'play-cyber-score-av';
+      av.alt = '';
+      const cid = row.characterId ? String(row.characterId) : '';
+      if (!cid) {
+        av.src = defaultAvatarImg.src;
+      } else {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) av.src = im.src;
+      }
+      const mid = document.createElement('div');
+      mid.className = 'play-cyber-score-mid';
+      const name = document.createElement('span');
+      name.className = 'play-cyber-score-name';
+      if (row.id === leaderId && leaderId != null) {
+        const crown = document.createElement('span');
+        crown.className = 'play-cyber-lead-crown';
+        crown.textContent = '♔';
+        crown.title = 'Leader';
+        name.appendChild(crown);
+      }
+      name.appendChild(document.createTextNode(String(row.nickname || '').slice(0, 14)));
+      const st = document.createElement('span');
+      st.className = 'play-cyber-score-state';
+      st.textContent = isQuizCarry()
+        ? ''
+        : (row.eliminated
+          ? (isBalloonBoss() ? 'OUT' : (isGauntletCrownHeistMapPlay() ? 'เสียชีวิต' : 'OFFLINE'))
+          : (isBalloonBoss()
+            ? ('♥' + Math.max(0, row.isMe ? (me.balloonBossBalloons | 0) : ((() => {
+              const ox = others.get(row.id);
+              return ox ? (ox.balloonBossBalloons | 0) : 0;
+            })())))
+            : 'LINK_OK'));
+      mid.appendChild(name);
+      mid.appendChild(st);
+      const sc = document.createElement('span');
+      sc.className = 'play-cyber-score-val';
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        sc.textContent = String(row.score);
+      } else {
+        sc.textContent = row.eliminated ? '—' : String(r + 1);
+      }
+      li.appendChild(av);
+      li.appendChild(mid);
+      li.appendChild(sc);
+      ul.appendChild(li);
+    }
+  }
+
+  function draw() {
+    if (!mapData) return;
+    const w = mapData.width, h = mapData.height;
+
+    const stackCam = isStack() ? getStackCameraCentersPx() : null;
+    let camX = stackCam ? stackCam.px : me.x * tileSize;
+    let camY = stackCam ? stackCam.py : me.y * tileSize;
+    if (isJumpSurvive()) {
+      camX = jumpSurviveCamCenterX;
+      camY = jumpSurviveCamCenterY;
+    }
+    let zDraw = zoom;
+    if (isSpaceShooter() || isBalloonBoss()) {
+      const mwPx = w * tileSize, mhPx = h * tileSize;
+      camX = mwPx * 0.5;
+      camY = mhPx * 0.5;
+      zDraw = Math.min(canvas.width / mwPx, canvas.height / mhPx) * 0.96;
+    }
+    const halfW = canvas.width / (2 * zDraw);
+    const halfH = canvas.height / (2 * zDraw);
+
+    // world bounds ที่กล้องมองเห็น (เป็นพิกัดพิกเซลของ map)
+    const worldMinX = camX - halfW;
+    const worldMaxX = camX + halfW;
+    const worldMinY = camY - halfH;
+    const worldMaxY = camY + halfH;
+
+    const mapWpx = w * tileSize, mapHpx = h * tileSize;
+    const visibleW = worldMaxX - worldMinX, visibleH = worldMaxY - worldMinY;
+    const showGrid = mapData.showMapInGame !== false && mapData.showMapInGame !== 'false';
+    const timeMs = Date.now();
+
+    if (mapBackgroundImg && mapBackgroundImg.complete && mapBackgroundImg.naturalWidth) {
+      /* กล้องเห็นพื้นที่นอก [0,map] ได้ — ห้ามสุ่มต้นทาง drawImage เกินขอบภาพ (จะเกิดซ้ำ/เส้นตัด/ซ้อนกันที่ขอบจอ) */
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      const natW = mapBackgroundImg.naturalWidth;
+      const natH = mapBackgroundImg.naturalHeight;
+      const bgMinX = Math.max(0, worldMinX);
+      const bgMaxX = Math.min(mapWpx, worldMaxX);
+      const bgMinY = Math.max(0, worldMinY);
+      const bgMaxY = Math.min(mapHpx, worldMaxY);
+      if (bgMaxX > bgMinX && bgMaxY > bgMinY) {
+        const srcX = (bgMinX / mapWpx) * natW;
+        const srcY = (bgMinY / mapHpx) * natH;
+        const srcW = ((bgMaxX - bgMinX) / mapWpx) * natW;
+        const srcH = ((bgMaxY - bgMinY) / mapHpx) * natH;
+        const destX = (bgMinX - camX) * zDraw + canvas.width / 2;
+        const destY = (bgMinY - camY) * zDraw + canvas.height / 2;
+        const destW = (bgMaxX - bgMinX) * zDraw;
+        const destH = (bgMaxY - bgMinY) * zDraw;
+        if (srcW > 0.25 && srcH > 0.25 && destW > 0.25 && destH > 0.25) {
+          ctx.drawImage(mapBackgroundImg, srcX, srcY, srcW, srcH, destX, destY, destW, destH);
+        }
+      }
+    } else {
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      if (isSpaceShooter()) {
+        ctx.save();
+        for (let s = 0; s < 120; s++) {
+          const sx = (Math.sin(s * 12.9898 + w) * 0.5 + 0.5) * canvas.width;
+          const sy = (Math.cos(s * 4.1415 + h) * 0.5 + 0.5) * canvas.height;
+          const br = (s % 4 === 0) ? 1.6 : 0.9;
+          ctx.fillStyle = s % 7 === 0 ? 'rgba(200, 240, 255, 0.35)' : 'rgba(255, 255, 255, 0.12)';
+          ctx.beginPath();
+          ctx.arc(sx, sy, br, 0, Math.PI * 2);
+          ctx.fill();
+        }
+        ctx.restore();
+      } else if (isBalloonBoss()) {
+        ctx.save();
+        ctx.fillStyle = 'rgba(30, 45, 120, 0.25)';
+        for (let col = 0; col < 24; col++) {
+          const x = (col + 0.5) * (canvas.width / 24);
+          for (let r = 0; r < 18; r++) {
+            const bit = (col * 17 + r * 31 + Math.floor(timeMs / 80)) % 2;
+            ctx.fillStyle = bit ? 'rgba(0, 255, 200, 0.14)' : 'rgba(180, 200, 255, 0.08)';
+            ctx.fillRect(x - 1, (r / 18) * canvas.height + ((timeMs / 40 + col * 3) % 40), 2.2, 10);
+          }
+        }
+        ctx.fillStyle = 'rgba(240, 248, 255, 0.55)';
+        ctx.beginPath();
+        ctx.moveTo(0, canvas.height);
+        const baseY = canvas.height * 0.88;
+        for (let k = 0; k <= 40; k++) {
+          const bx = (k / 40) * canvas.width;
+          const by = baseY - Math.abs(Math.sin(k * 1.7 + w)) * canvas.height * 0.08 - (k % 3) * 4;
+          ctx.lineTo(bx, by);
+        }
+        ctx.lineTo(canvas.width, canvas.height);
+        ctx.closePath();
+        ctx.fill();
+        ctx.restore();
+      }
+    }
+    function worldToScreen(wx, wy) {
+      const sx = (wx - camX) * zDraw + canvas.width / 2;
+      const sy = (wy - camY) * zDraw + canvas.height / 2;
+      return [sx, sy];
+    }
+
+    function drawGridImagePlacementsLayer() {
+      if (!mapData.gridImagePlacements || !mapData.gridImagePlacements.length || !mapData.gridImageLibrary || !mapData.gridImageLibrary.length) return;
+      for (let gi = 0; gi < mapData.gridImagePlacements.length; gi++) {
+        const sp = mapData.gridImagePlacements[gi];
+        const wx0 = sp.x * tileSize;
+        const wy0 = sp.y * tileSize;
+        const ww = sp.w * tileSize;
+        const wh = sp.h * tileSize;
+        if (wx0 + ww <= worldMinX || wx0 >= worldMaxX || wy0 + wh <= worldMinY || wy0 >= worldMaxY) continue;
+        let gim = mapGridImageImgs[sp.i];
+        let carrySpriteAlpha = 1;
+        if (isQuizCarry()) {
+          const domOpt = quizCarryOptionIndexForGridSprite(mapData, sp);
+          const onHub = spriteOverlapsQuizCarryHubArea(mapData, sp);
+          const meHolding = me && me.quizCarryHeld != null;
+          let carryVisualActive = false;
+          if (domOpt != null && quizCarryOptionHeldByAnyone(domOpt)) carryVisualActive = true;
+          else if (domOpt == null && onHub && meHolding) carryVisualActive = true;
+          if (carryVisualActive) {
+            const gh = mapGridImageHeldImgs[sp.i];
+            if (gh && gh.complete && gh.naturalWidth) gim = gh;
+            else carrySpriteAlpha = 0.32;
+          }
+        }
+        if (!gim || !gim.complete || !gim.naturalWidth) continue;
+        const sx0 = (wx0 - camX) * zDraw + canvas.width / 2;
+        const sy0 = (wy0 - camY) * zDraw + canvas.height / 2;
+        const sw = ww * zDraw;
+        const sh = wh * zDraw;
+        ctx.save();
+        if (carrySpriteAlpha < 1) ctx.globalAlpha = carrySpriteAlpha;
+        ctx.beginPath();
+        ctx.rect(sx0, sy0, sw, sh);
+        ctx.clip();
+        ctx.drawImage(gim, sx0, sy0, sw, sh);
+        ctx.restore();
+        ctx.strokeStyle = 'rgba(255,255,255,0.18)';
+        ctx.lineWidth = 1;
+        ctx.strokeRect(sx0 + 0.5, sy0 + 0.5, sw - 1, sh - 1);
+      }
+    }
+
+    const startTileX = Math.max(0, Math.floor(worldMinX / tileSize));
+    const endTileX = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+    const startTileY = Math.max(0, Math.floor(worldMinY / tileSize));
+    const endTileY = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        const lane = isFrogger() ? getLane(y) : null;
+        let rowFill = null;
+        if (lane) {
+          if (lane.type === 'goal') rowFill = 'rgba(158,206,106,0.4)';
+          else if (lane.type === 'spawn') rowFill = 'rgba(187,154,247,0.35)';
+          else if (lane.type === 'road') rowFill = 'rgba(80,70,60,0.6)';
+          else if (lane.type === 'water') rowFill = 'rgba(125,207,255,0.5)';
+        } else if (isGauntlet()) {
+          rowFill = (y % 2 === 0) ? 'rgba(247,118,190,0.08)' : 'rgba(180,90,140,0.06)';
+        } else if (isStack()) {
+          rowFill = (y % 2 === 0) ? 'rgba(122, 162, 247, 0.06)' : 'rgba(187, 154, 247, 0.05)';
+        } else if (isJumpSurvive()) {
+          rowFill = (y % 2 === 0) ? 'rgba(90, 200, 255, 0.07)' : 'rgba(60, 140, 200, 0.06)';
+        } else if (isSpaceShooter()) {
+          rowFill = (y % 2 === 0) ? 'rgba(30, 45, 110, 0.22)' : 'rgba(20, 32, 78, 0.28)';
+        } else if (isBalloonBoss()) {
+          rowFill = (y % 2 === 0) ? 'rgba(40, 25, 80, 0.2)' : 'rgba(25, 18, 60, 0.24)';
+        } else if (isQuizBattle()) {
+          rowFill = (y % 2 === 0) ? 'rgba(110, 175, 255, 0.06)' : 'rgba(230, 110, 140, 0.055)';
+        }
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const ob = mapData.objects?.[y]?.[x] ?? 0;
+          if (ob === 1) {
+            ctx.fillStyle = 'rgba(65,72,104,0.92)';
+            ctx.fillRect(sx, sy, size, size);
+            ctx.strokeStyle = '#565f89';
+            ctx.strokeRect(sx, sy, size, size);
+          } else {
+            const cellColor = showGrid && mapData.cellColors && mapData.cellColors[y] && mapData.cellColors[y][x];
+            if (cellColor) { ctx.fillStyle = cellColor; ctx.fillRect(sx, sy, size, size); }
+            else if (rowFill) { ctx.fillStyle = rowFill; ctx.fillRect(sx, sy, size, size); }
+            else if (!mapBackgroundImg || !mapBackgroundImg.complete) {
+              ctx.fillStyle = (x + y) % 2 === 0 ? '#24283b' : '#1f2335';
+              ctx.fillRect(sx, sy, size, size);
+            }
+          }
+        }
+      }
+    }
+    drawGridImagePlacementsLayer();
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const isInter = mapData.interactive && mapData.interactive[y] && mapData.interactive[y][x] === 1;
+          if (isInter) {
+            ctx.fillStyle = 'rgba(158,206,106,0.35)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = 'rgba(158,206,106,0.8)';
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+          }
+          if (isQuiz()) {
+            const isQuizQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isQuizQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.32)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.78)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizT = mapData.quizTrueArea && mapData.quizTrueArea[y] && mapData.quizTrueArea[y][x] === 1;
+            if (isQuizT) {
+              ctx.fillStyle = 'rgba(86, 202, 255, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizF = mapData.quizFalseArea && mapData.quizFalseArea[y] && mapData.quizFalseArea[y][x] === 1;
+            if (isQuizF) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+          }
+          if (isQuizCarry()) {
+            const hub = mapData.quizCarryHubArea && mapData.quizCarryHubArea[y] && mapData.quizCarryHubArea[y][x] === 1;
+            if (hub) {
+              ctx.fillStyle = 'rgba(187, 154, 247, 0.35)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(200, 170, 255, 0.75)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isCarryQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isCarryQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.3)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.82)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const ov = mapData.quizCarryOptionArea && mapData.quizCarryOptionArea[y] && mapData.quizCarryOptionArea[y][x];
+            if (ov >= 1 && ov <= QUIZ_CARRY_MAX_OPTION_SLOTS) {
+              ctx.fillStyle = quizCarryMinimapOptionFillCss(ov);
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattlePathArea && mapData.quizBattlePathArea[y] && mapData.quizBattlePathArea[y][x] === 1) {
+            ctx.fillStyle = 'rgba(186, 130, 255, 0.4)';
+            ctx.fillRect(sx + 1, sy + 1, size - 2, size - 2);
+            ctx.strokeStyle = 'rgba(220, 170, 255, 0.55)';
+            ctx.strokeRect(sx + 1, sy + 1, size - 2, size - 2);
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattleDomeArea && mapData.quizBattleDomeArea[y] && mapData.quizBattleDomeArea[y][x] === 1) {
+            const cid = mapData.quizBattleDomeComp && mapData.quizBattleDomeComp[y] && mapData.quizBattleDomeComp[y][x];
+            const done = cid > 0 && quizBattleAnsweredComps.has(cid);
+            ctx.fillStyle = done ? 'rgba(90, 90, 110, 0.4)' : 'rgba(100, 200, 255, 0.36)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = done ? 'rgba(140, 140, 160, 0.65)' : 'rgba(255, 100, 130, 0.82)';
+            ctx.lineWidth = 2;
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.lineWidth = 1;
+          }
+          if (isStack()) {
+            const sr = mapData.stackReleaseArea, sl = mapData.stackLandArea;
+            if (sr && sr[y] && sr[y][x] === 1) {
+              ctx.fillStyle = 'rgba(125, 207, 255, 0.28)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.55)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            if (sl && sl[y] && sl[y][x] === 1) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.26)';
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.5)';
+              ctx.strokeRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isBalloonBoss() && showGrid && mapData.balloonBossPlayerSlots) {
+            const sv = mapData.balloonBossPlayerSlots[y] && mapData.balloonBossPlayerSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(255, 120, 200, 0.12)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 160, 220, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(255, 228, 250, 0.92)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+          if (isSpaceShooter() && showGrid && mapData.shooterSpawnSlots) {
+            const sv = mapData.shooterSpawnSlots[y] && mapData.shooterSpawnSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(0, 255, 240, 0.14)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(220, 250, 255, 0.9)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+        }
+      }
+      if (isJumpSurvive() && showGrid && mapData.jumpSurvivePlatformArea) {
+        const pa = mapData.jumpSurvivePlatformArea;
+        const sc = jumpSurvivePlatformScrollPx;
+        const tsz = tileSize;
+        const period = h * tsz;
+        const visTop = worldMinY;
+        const visBot = worldMaxY;
+        const eps = 1e-6;
+        for (let py = 0; py < h; py++) {
+          for (let px = 0; px < w; px++) {
+            if (!pa[py] || pa[py][px] !== 1) continue;
+            const tileWorldLeft = px * tsz;
+            const tileWorldRight = tileWorldLeft + tsz;
+            if (tileWorldRight <= worldMinX || tileWorldLeft >= worldMaxX) continue;
+            const rawTop = py * tsz - sc;
+            const kMin = Math.ceil((visTop - rawTop - tsz + eps) / period);
+            const kMax = Math.floor((visBot - rawTop - eps) / period);
+            if (kMax < kMin) continue;
+            for (let kk = kMin; kk <= kMax; kk++) {
+              const platTop = rawTop + kk * period;
+              if (platTop + tsz <= visTop || platTop >= visBot) continue;
+              const [psx, psy] = worldToScreen(tileWorldLeft, platTop);
+              const psz = tsz * zDraw;
+              ctx.fillStyle = 'rgba(0, 40, 52, 0.72)';
+              ctx.fillRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(0, 255, 240, 0.55)';
+              ctx.lineWidth = 2;
+              ctx.strokeRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.35)';
+              ctx.lineWidth = 1;
+              ctx.strokeRect(psx + 5, psy + 5, psz - 10, psz - 10);
+              const grad = ctx.createLinearGradient(psx, psy, psx, psy + psz);
+              grad.addColorStop(0, 'rgba(0, 255, 240, 0.12)');
+              grad.addColorStop(0.5, 'rgba(0, 0, 0, 0)');
+              grad.addColorStop(1, 'rgba(0, 180, 200, 0.08)');
+              ctx.fillStyle = grad;
+              ctx.fillRect(psx + 4, psy + 4, psz - 8, psz - 8);
+              ctx.lineWidth = 1;
+              if (zDraw >= 1.15 && psz > 22) {
+                ctx.save();
+                ctx.font = `600 ${Math.max(7, Math.min(11, psz * 0.14))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(180, 255, 255, 0.5)';
+                ctx.textAlign = 'center';
+                ctx.textBaseline = 'middle';
+                ctx.fillText('DATA', psx + psz * 0.5, psy + psz * 0.38);
+                ctx.font = `500 ${Math.max(5, Math.min(8, psz * 0.1))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(120, 230, 255, 0.38)';
+                ctx.fillText('/SEC/BLOCK', psx + psz * 0.5, psy + psz * 0.62);
+                ctx.restore();
+              }
+            }
+          }
+        }
+      }
+      if (isFrogger() && mapData.lanes) {
+        for (let y = startTileY; y <= endTileY; y++) {
+          const lane = getLane(y);
+          if (!lane || (lane.type !== 'road' && lane.type !== 'water')) continue;
+          const positions = getVehiclePositions(lane, mapData.width, timeMs);
+          const isRoad = lane.type === 'road';
+          for (let i = 0; i < positions.length; i++) {
+            const vx = positions[i];
+            const wx = vx * tileSize, wy = y * tileSize;
+            const [sx, sy] = worldToScreen(wx, wy);
+            const size = tileSize * zDraw * (isRoad ? 1.2 : 1.5);
+            ctx.fillStyle = isRoad ? '#e0a060' : '#8b7355';
+            ctx.fillRect(sx, sy, size, size * 0.7);
+            ctx.strokeStyle = isRoad ? '#c0caf5' : '#9ece6a';
+            ctx.strokeRect(sx, sy, size, size * 0.7);
+          }
+        }
+      }
+    }
+
+    if (isQuizCarry()) {
+      drawQuizCarryChoiceLabels(ctx, worldToScreen, zDraw);
+    }
+
+    if (isStack() && stackMini) {
+      drawStackMinigame(ctx, worldToScreen, zDraw);
+    }
+
+    const gauntletObsDraw = isGauntlet() ? getGauntletObsDrawPositionsAt(performance.now()) : [];
+    if (isGauntlet() && gauntletObsDraw.length) {
+      const stx = Math.max(0, Math.floor(worldMinX / tileSize));
+      const enx = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+      const sty = Math.max(0, Math.floor(worldMinY / tileSize));
+      const eny = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+      for (let i = 0; i < gauntletObsDraw.length; i++) {
+        const o = gauntletObsDraw[i];
+        if (!o) continue;
+        if (o.kind === 'lane' && typeof o.y === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2 || o.y < sty || o.y > eny) continue;
+          const size = tileSize * zDraw;
+          const inner = Math.max(2, size - 4);
+          const [sxC, syCellBottom] = worldToScreen((o.drawX + 0.5) * tileSize, (o.y + 1) * tileSize);
+          const dx = sxC - inner / 2;
+          const dy = syCellBottom - inner;
+          const laneRec = pickGauntletLaneImageRec(o.id);
+          if (laneRec && laneRec.img.complete && laneRec.img.naturalWidth > 0) {
+            try {
+              ctx.drawImage(laneRec.img, dx, dy, inner, inner);
+            } catch (e) {
+              ctx.fillStyle = '#f7768e';
+              ctx.fillRect(dx, dy, inner, inner);
+            }
+          } else {
+            ctx.fillStyle = '#f7768e';
+            ctx.fillRect(dx, dy, inner, inner);
+          }
+        } else if (o.kind === 'laser' && typeof o.drawX === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2) continue;
+          const { y0: laserRow0, y1: laserRow1 } = gauntletLaserRowHitRange(o, h);
+          const wx0 = o.drawX * tileSize;
+          const wx1 = (o.drawX + 1) * tileSize;
+          const wy0 = laserRow0 * tileSize;
+          const wy1 = (laserRow1 + 1) * tileSize;
+          const [sx0, syTop] = worldToScreen(wx0, wy0);
+          const [sx1, syBot] = worldToScreen(wx1, wy1);
+          const rx = Math.min(sx0, sx1);
+          const rw = Math.max(2, Math.abs(sx1 - sx0));
+          const ry = Math.min(syTop, syBot);
+          const rh = Math.abs(syBot - syTop);
+          drawGauntletLaserColumnScreen(rx, ry, rw, rh);
+        }
+      }
+    }
+
+    /** ป้ายติดตัว — กึ่งกลางลำตัว (ทับอก/เอว) แบบเดียวกับป้ายบนพื้น ไม่มีเส้นเชื่อม */
+    function drawQuizCarryHeldSignBoard(sxFeet, feetSy, halfSpriteW, spriteTopY, signText, _faceDir, choiceIndex, imageUrl, imageElementOpt) {
+      const imgUrlSan = sanitizeQuizCarryImageUrlClient(imageUrl);
+      const gridHeldDraw = imageElementOpt && imageElementOpt.complete && imageElementOpt.naturalWidth > 0 ? imageElementOpt : null;
+      const raw = String(signText || '').trim();
+      if (!raw && !imgUrlSan && !gridHeldDraw) return;
+      ctx.save();
+      const heldPs = quizCarryPlaqueMapScaleClampedPlay();
+      const bodyH = Math.max(18, feetSy - spriteTopY);
+      const midBodyY = spriteTopY + bodyH * 0.48;
+      const bodyCx = sxFeet;
+      const halfW = Math.max(10, halfSpriteW || 0);
+      const baseMaxW = Math.min(280, Math.max(100, halfW * 2.4 + tileSize * zDraw * 0.5));
+      const maxPlaqueW = Math.min(340, Math.round(baseMaxW * heldPs));
+
+      const fontPx = Math.max(12, Math.min(22, tileSize * zDraw * 0.22 * heldPs));
+      ctx.font = `600 ${fontPx}px system-ui, "Segoe UI", "Kanit", sans-serif`;
+      const padX = 12;
+      const padY = 9;
+      const maxInner = Math.min(maxPlaqueW - padX * 2, Math.max(72, tileSize * zDraw * 4.2));
+      let lines;
+      if (!raw) {
+        lines = [];
+      } else {
+        lines = canvasWordWrapLines(ctx, raw, maxInner);
+        if (!lines.length) lines = [raw];
+        if (lines.length > 3) lines = lines.slice(0, 3);
+        for (let i = 0; i < lines.length; i++) {
+          let s = lines[i];
+          if (ctx.measureText(s).width <= maxInner) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxInner) s = s.slice(0, -1);
+          lines[i] = s + '…';
+        }
+      }
+      let maxLineW = 0;
+      for (let i = 0; i < lines.length; i++) {
+        const lw = ctx.measureText(lines[i]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const lineH = fontPx * 1.22;
+      let w;
+      let h;
+      if (!lines.length && (imgUrlSan || gridHeldDraw)) {
+        w = Math.ceil(Math.min(maxPlaqueW, Math.max(104, maxInner + padX * 2)));
+        h = Math.ceil(Math.max(56, fontPx * 2.8 + padY * 2));
+      } else {
+        w = Math.ceil(Math.max(maxLineW, 56) + padX * 2);
+        h = Math.ceil(lines.length * lineH + padY * 2);
+        w = Math.min(maxPlaqueW, Math.max(96, w));
+        h = Math.max(40, h);
+      }
+
+      let signX = bodyCx - w / 2;
+      let signY = midBodyY - h / 2;
+
+      if (signX + w > canvas.width - 6) signX = canvas.width - w - 6;
+      if (signX < 6) signX = 6;
+      if (signY < 6) signY = 6;
+      if (signY + h > feetSy + 8) signY = feetSy + 8 - h;
+
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, null, { imageUrl: imgUrlSan, imageElement: gridHeldDraw });
+      ctx.restore();
+    }
+
+    function drawAvatar(ax, ay, isMe, name, characterId, direction, isWalking, playTint, gauntletAirTicks, gauntletScoreLabel, quizCarrySignPayload) {
+      const { cw, ch } = getCharacterFootprintWH(mapData);
+      const air = Number(gauntletAirTicks) || 0;
+      let liftWorldY = 0;
+      if (isGauntlet() && air > 0) {
+        liftWorldY = gauntletLiftHeightNorm(air, gauntletRuntimeJumpTicks) * tileSize * 0.52;
+      }
+      const cxWorld = (ax + cw * 0.5) * tileSize;
+      /* ใช้ ay แบบต่อเนื่อง — ห้าม floor(ay) เดิมทำให้เท้ากระโดดทีละช่องขณะเดิน (กระตุกแนวตั้ง) */
+      const cyBottomWorld = (ay + ch) * tileSize - liftWorldY;
+      const [sx, sy] = worldToScreen(cxWorld, cyBottomWorld);
+      const cellSpan = Math.max(cw, ch);
+      const r = Math.max(14, (tileSize * zDraw * cellSpan) / 2 - 2);
+      const size = r * 2.2;
+      const dir = direction || 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, isWalking);
+      const charImg = playTint
+        ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, playTint)
+        : rawImg;
+      /* รองรับทั้ง <img> และ canvas จากย้อมสี (canvas ไม่มี naturalWidth → เดิมตกวงกลม) */
+      let iw = 0, ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      let halfSpriteW = r;
+      let spriteTopY = sy - 2 * r;
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(size / iw, size / ih, 1);
+        const drawW = iw * scale;
+        const drawH = ih * scale;
+        halfSpriteW = drawW / 2;
+        spriteTopY = sy - drawH;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - drawW / 2, sy - drawH, drawW, drawH);
+      } else {
+        const cy = sy - r;
+        ctx.fillStyle = isMe ? '#7aa2f7' : '#9ece6a';
+        ctx.beginPath();
+        ctx.arc(sx, cy, r, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = '#c0caf5';
+        ctx.lineWidth = 2;
+        ctx.stroke();
+        spriteTopY = cy - r;
+      }
+      ctx.fillStyle = '#c0caf5';
+      ctx.font = '10px sans-serif';
+      ctx.textAlign = 'center';
+      const nameBase = name || '';
+      const withScore = isGauntlet() && typeof gauntletScoreLabel === 'number' && gauntletScoreLabel >= 0
+        ? (nameBase + ' · ' + gauntletScoreLabel)
+        : nameBase;
+      ctx.fillText(withScore, sx, sy + 10);
+      if (isQuizCarry() && quizCarrySignPayload) {
+        drawQuizCarryHeldSignBoard(
+          sx, sy, halfSpriteW, spriteTopY,
+          quizCarrySignPayload.text, dir, quizCarrySignPayload.choiceIndex,
+          quizCarrySignPayload.imageUrl,
+          quizCarrySignPayload.imageElement,
+        );
+      }
+    }
+    function quizCarrySignForEntity(ent) {
+      if (!isQuizCarry() || !quizCarryCurrent || !ent || ent.quizCarryHeld == null) return null;
+      const idx = ent.quizCarryHeld;
+      const ch = quizCarryCurrent.choices;
+      if (!Array.isArray(ch) || idx < 0 || idx >= ch.length) return null;
+      const t = String(ch[idx] != null ? ch[idx] : '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, idx);
+      const gridHeldEl = findQuizCarryGridHeldImgForChoiceIndex(idx);
+      if (!t && !imgUrl && !gridHeldEl) return null;
+      return { text: t, choiceIndex: idx, imageUrl: imgUrl, imageElement: gridHeldEl || undefined };
+    }
+    const safeX = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const safeY = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    function peerVisualOffset(id) {
+      let h = 0;
+      for (let i = 0; i < (id || '').length; i++) h = (h * 31 + (id || '').charCodeAt(i)) >>> 0;
+      return { ax: ((h % 5) - 2) * 0.1, ay: ((Math.floor(h / 5) % 5) - 2) * 0.1 };
+    }
+    const { ch: sortCh } = getCharacterFootprintWH(mapData);
+    /** ใช้แถวกริด (floor y) เป็นหลัก — ลดการสลับลำดับวาดทุกเฟรมเมื่อ y เป็น float เลอร์ป */
+    function avatarDrawDepth(ent) {
+      return Math.floor(safeY(ent.y)) + sortCh;
+    }
+    if (!isStack() && !isSpaceShooter() && !isBalloonBoss()) {
+      let mt = me.playTint;
+      if (!mt || typeof mt.head !== 'string' || typeof mt.hair !== 'string' || typeof mt.body !== 'string') {
+        mt = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+        me.playTint = mt;
+      }
+      const meTag = isFrogger() ? (' (กบ) ' + froggerScore) : (isGauntlet() && meGauntletJumpTicks > 0 ? ' (กระโดด)' : (isJumpSurvive() && jumpSurviveEliminated ? ' (ตกรอบ)' : ' (คุณ)'));
+      const meWalking = isFrogger() ? false : (isGauntlet() ? (meGauntletJumpTicks > 0 || meGauntletJumpVis > 0.08) : !!me.isWalking);
+      const drawRows = [];
+      others.forEach((o, id) => {
+        if (!o) return;
+        drawRows.push({ isMe: false, id, o });
+      });
+      drawRows.push({ isMe: true, id: '__me', o: me });
+      drawRows.sort((a, b) => {
+        const da = avatarDrawDepth(a.o);
+        const db = avatarDrawDepth(b.o);
+        if (da !== db) return da - db;
+        const xa = Math.floor(safeX(a.o.x) * 4);
+        const xb = Math.floor(safeX(b.o.x) * 4);
+        if (xa !== xb) return xa - xb;
+        const sa = a.isMe ? '\uFFFFme' : String(a.id);
+        const sb = b.isMe ? '\uFFFFme' : String(b.id);
+        return sa < sb ? -1 : sa > sb ? 1 : 0;
+      });
+      drawRows.forEach((row) => {
+        if (!row.isMe) {
+          const id = row.id;
+          const o = row.o;
+          const off = isGauntlet() ? { ax: 0, ay: 0 } : peerVisualOffset(id);
+          const otherWalk = isGauntlet()
+            ? ((o.gauntletJumpTicks || 0) > 0 || (o.gauntletJumpVis || 0) > 0.08)
+            : (isPreviewBotId(id)
+              ? !!o.botIsWalking
+              : !!((o.tx != null && Math.abs((o.tx || o.x) - o.x) > 0.02) || (o.ty != null && Math.abs((o.ty || o.y) - o.y) > 0.02)));
+          const ot = o.playTint || playTintFromPeerId(id);
+          const faceDirOther = isGauntletFaceRightMapMno9kb07() ? 'right' : o.direction;
+          const botOut = isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated;
+          const peerName = botOut ? (o.nickname + ' (ตกรอบ)') : o.nickname;
+          if (botOut) ctx.save();
+          if (botOut) ctx.globalAlpha = 0.4;
+          drawAvatar(safeX(o.x) + off.ax, safeY(o.y) + off.ay, false, peerName, o.characterId, faceDirOther, otherWalk, ot, (o.gauntletJumpVis != null ? o.gauntletJumpVis : o.gauntletJumpTicks) || 0, o.gauntletScore || 0, quizCarrySignForEntity(o));
+          if (botOut) ctx.restore();
+        } else {
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.save();
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.globalAlpha = 0.4;
+          const faceDirMe = isGauntletFaceRightMapMno9kb07() ? 'right' : me.direction;
+          drawAvatar(safeX(me.x), safeY(me.y), true, me.nickname + meTag, me.characterId, faceDirMe, meWalking, mt, meGauntletJumpVis, me.gauntletScore || 0, quizCarrySignForEntity(me));
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.restore();
+        }
+      });
+    }
+    if (isFrogger()) {
+      ctx.fillStyle = '#7aa2f7';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      ctx.fillText('โหมดกบ | คะแนน: ' + froggerScore, 10, 24);
+    }
+    if (isJumpSurvive() && !useCyberPlayHud()) {
+      ctx.fillStyle = 'rgba(148, 226, 213, 0.95)';
+      ctx.font = '600 12px system-ui, "Segoe UI", "Kanit", sans-serif';
+      ctx.textAlign = 'left';
+      if (jumpSurviveEliminated) {
+        ctx.fillStyle = 'rgba(247, 118, 190, 0.95)';
+        ctx.fillText('คุณตกรอบแล้ว (ชนหรือหลุดเพดาน/พื้นจอ) · เล่นต่อไม่ได้ — ดูเพื่อนได้ · รอรอบใหม่หรือออกจากห้อง', 10, 22);
+      } else {
+        ctx.fillText('กระโดดให้รอด · Space / W / ↑ · A D / ← → · แพลตฟอร์มวน · ชนหรือหลุดบน/ล่างจอ = ตกรอบ (ดูเพื่อนต่อ)', 10, 22);
+      }
+    }
+    if (isGauntlet() && !useCyberPlayHud()) {
+      ctx.fillStyle = '#f7768e';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      if (isGauntletCrownHeistMapPlay()) {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน ' + (me.gauntletScore || 0) + ' · ชน -10 · ขอบซ้ายตาย · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · จบเกมมีโบนัสอันดับ + เกรดทีม', 10, 42);
+      } else {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน: ' + (me.gauntletScore || 0) + ' (ข้าม 1 ชิ้น +1) · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · ข้ามสำเร็จ → ขวา 1 + คะแนน · ชน → ซ้าย 1', 10, 42);
+      }
+      ctx.fillStyle = '#e0af68';
+      if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+        const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+        const mm = Math.floor(rem / 60);
+        const ss = rem % 60;
+        const clock = `${mm}:${String(ss).padStart(2, '0')}`;
+        ctx.fillText(`เหลือเวลา ${clock} · Time left ${clock}`, 10, 60);
+      } else if (gauntletRuntimeTimeLimitSec > 0) {
+        ctx.fillText('เวลา: กำลังซิงก์จากเซิร์ฟเวอร์... · Syncing timer...', 10, 60);
+      } else {
+        ctx.fillText('เวลา: ไม่จำกัด · No time limit (ตั้งได้ที่ Admin → เวลาเกม)', 10, 60);
+      }
+    }
+    if (isStack() && stackMini) {
+      if (previewFillBots) {
+        ctx.fillStyle = 'rgba(125, 220, 255, 0.9)';
+        ctx.font = '600 12px ui-sans-serif, system-ui, sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack · shared tower · Space / click = release on your turn', 10, 22);
+        drawStackPreviewCyberHud(ctx, canvas.width, canvas.height);
+      } else {
+        ctx.fillStyle = '#7dcfff';
+        ctx.font = 'bold 15px sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack | คะแนน ' + stackMini.score + ' · ชีวิต ' + stackMini.lives + ' · combo x' + (stackMini.combo || 0), 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / คลิก = ปล่อย', 10, 44);
+      }
+    }
+    if (isQuiz() || isQuizCarry() || isQuizBattle()) {
+      syncPlayQuizMapPanel();
+      syncQuizCarryEmbedQuestionStrip();
+    }
+    /* timeup ต้องซิงก์ทุกเฟรมแม้จบเซสชัน — อย่าให้อยู่ในเงื่อนไขด้านบนอย่างเดียว */
+    syncQuizCarryTimeupDeskLayerPosition();
+    if (previewFillBots && mapData && !useCyberPlayHud()) {
+      const human = countPlayHumans();
+      const bots = [...others.keys()].filter(isPreviewBotId).length;
+      ctx.save();
+      ctx.setTransform(1, 0, 0, 1, 0, 0);
+      ctx.fillStyle = 'rgba(26,27,38,0.78)';
+      const hudW = isStack() ? Math.min(canvas.width - 12, 520) : Math.min(canvas.width - 12, 320);
+      ctx.fillRect(6, canvas.height - 38, hudW, 30);
+      ctx.fillStyle = '#a9b1d6';
+      ctx.font = '12px sans-serif';
+      ctx.textAlign = 'left';
+      let line = 'ทดสอบ: คนจริง ' + human + ' + บอท ' + bots + ' (เป้า ' + previewTargetHeadcount + ' คน)';
+      if (isStack()) {
+        line += ' · ตึกร่วม + HUD ซ้าย/ขวา';
+      }
+      ctx.fillText(line, 12, canvas.height - 18);
+      ctx.restore();
+    }
+    if (isSpaceShooter()) {
+      drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isBalloonBoss()) {
+      drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isQuizCarry()) {
+      drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now()) {
+      syncQuizCarryEmbedCountdownLayout();
+    }
+    syncPlayCyberHud();
+    syncQuizCarryGrabButton();
+  }
+
+  document.addEventListener('keydown', (e) => {
+    if (isMovementKey(e.code) && isChatFocused()) return;
+    if ((isSpaceShooter() || isBalloonBoss()) && mapData && !isChatFocused()) {
+      if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+      }
+    }
+    if (isStack() && mapData && !isChatFocused()) {
+      if (e.code === 'Space') {
+        e.preventDefault();
+        tryHumanStackDrop();
+        return;
+      }
+      if (['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isGauntlet() && mapData && !isChatFocused()) {
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (isGauntletCrownPregameBlockingPlay()) return;
+        if (isGauntletCrownHeistMapPlay() && me.gauntletEliminated) return;
+        const now = Date.now();
+        if (now - lastGauntletJumpKey < 200) return;
+        lastGauntletJumpKey = now;
+        socket.emit('gauntlet-jump');
+        return;
+      }
+      if (['ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isJumpSurvive() && mapData && !isChatFocused()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (jumpSurviveEliminated) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (!e.repeat) jumpSurviveJumpQueued = true;
+        return;
+      }
+      if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isQuizBattle() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyE') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryOpenQuizBattleFromKey();
+        return;
+      }
+    }
+    if (isQuizCarry() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyF') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+        return;
+      }
+    }
+    keys[e.code] = true;
+    keys[e.key] = true;
+    if (['ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].includes(e.code)) e.preventDefault();
+    if (isFrogger() && mapData && !isChatFocused()) {
+      const now = Date.now();
+      if (now - lastFroggerKey < 280) return;
+      let dx = 0, dy = 0;
+      if (e.code === 'ArrowUp' || e.code === 'KeyW') { dy = -1; me.direction = 'up'; }
+      else if (e.code === 'ArrowDown' || e.code === 'KeyS') { dy = 1; me.direction = 'down'; }
+      else if (e.code === 'ArrowLeft' || e.code === 'KeyA') { dx = -1; me.direction = 'left'; }
+      else if (e.code === 'ArrowRight' || e.code === 'KeyD') { dx = 1; me.direction = 'right'; }
+      if (dx !== 0 || dy !== 0) {
+        const nx = Math.round(me.x) + dx, ny = Math.round(me.y) + dy;
+        if (nx >= 0 && nx < mapData.width && ny >= 0 && ny < mapData.height) {
+          const row = mapData.objects && mapData.objects[ny];
+          if (!row || row[nx] !== 1) {
+            me.x = nx; me.y = ny;
+            lastFroggerKey = now;
+            socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+            const lane = getLane(Math.floor(me.y));
+            if (lane && lane.type === 'goal') { froggerScore++; respawnFrogger(); }
+            else if (checkFroggerCollision()) respawnFrogger();
+          }
+        }
+      }
+    }
+  });
+  document.addEventListener('keyup', (e) => { keys[e.code] = false; keys[e.key] = false; });
+
+  let lastSend = 0;
+  function tick() {
+    if (!mapData) { requestAnimationFrame(tick); return; }
+    if (isStack()) {
+      stackTickFrame();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isJumpSurvive()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      jumpSurviveTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isSpaceShooter()) {
+      spaceShooterTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isBalloonBoss()) {
+      balloonBossTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isFrogger()) {
+      if (checkFroggerCollision()) respawnFrogger();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isGauntlet()) {
+      if (isGauntletCrownPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      me.isWalking = meGauntletJumpTicks > 0;
+      const stepGauntletJumpVis = (vis, tgt) => {
+        const t = Number(tgt) || 0;
+        let v = Number(vis) || 0;
+        const d = t - v;
+        const k = d < 0 ? 0.68 : 0.4;
+        return v + d * k;
+      };
+      meGauntletJumpVis = stepGauntletJumpVis(meGauntletJumpVis, meGauntletJumpTicks);
+      const mp = lerpGauntletEntityPos(me.x, me.y, me.tx, me.ty);
+      me.x = mp.nx;
+      me.y = mp.ny;
+      others.forEach((o) => {
+        const op = lerpGauntletEntityPos(o.x, o.y, o.tx, o.ty);
+        o.x = op.nx;
+        o.y = op.ny;
+        if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks || 0;
+        o.gauntletJumpVis = stepGauntletJumpVis(o.gauntletJumpVis, o.gauntletJumpTicks || 0);
+      });
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    /* บอท preview ขยับที่ o.x/o.y โดยตรง — ห้าม LERP กับ tx/ty เพราะ stepPreviewBots เคยตั้ง tx=ก่อนเดิน ทำให้โดนดึงถอย ~20%/เฟรม กระตุกและแทบไม่ไป */
+    others.forEach((o, id) => {
+      if (previewFillBots && isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * LERP;
+      if (o.ty != null) o.y += (o.ty - o.y) * LERP;
+    });
+    tickQuizCarryEmbedCountdown();
+    tickQuizCarryRoundTimers();
+    updateQuizCarryCarryPhaseHud();
+    stepPreviewBots();
+    if (isChatFocused()) {
+      me.isWalking = false;
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isQuizCarryEmbedLobbyBlockingMovement() || isQuizCarryEmbedCountdownBlockingMovement()) {
+      me.isWalking = false;
+      playPath = [];
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    let accX = 0, accY = 0;
+    let usePath = false;
+    const keyPressed = keys['ArrowUp'] || keys['KeyW'] || keys['ArrowDown'] || keys['KeyS'] || keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD'];
+    if (playPath.length > 0 && keyPressed) playPath = [];
+    if (playPath.length > 0) {
+      const way = playPath[0];
+      const dx = way.x - me.x, dy = way.y - me.y;
+      const dist = Math.sqrt(dx * dx + dy * dy);
+      if (dist <= PATH_ARRIVE_THRESH) {
+        playPath.shift();
+        /* ข้าม waypoint ที่ซ้ำตำแหน่ง — กัน acc=0 ทั้งที่ยังมี path (เดินขึ้น/ลงแล้วแอนิเมชันค้าง) */
+        while (playPath.length > 0) {
+          const w2 = playPath[0];
+          const ux = w2.x - me.x, uy = w2.y - me.y;
+          if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+          playPath.shift();
+        }
+        if (playPath.length === 0) {
+          me.isWalking = false;
+          me.x = Math.max(0, Math.min(w - 0.01, me.x));
+          me.y = Math.max(0, Math.min(h - 0.01, me.y));
+          enforceQuizBattleLaneOnMePlay();
+          const t = Date.now();
+          if (t - lastSend > 80) { lastSend = t; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+          maybeAutoOpenQuizBattle();
+          draw();
+          requestAnimationFrame(tick);
+          return;
+        }
+        usePath = true;
+        const next = playPath[0];
+        accX = next.x - me.x;
+        accY = next.y - me.y;
+      } else {
+        usePath = true;
+        accX = dx;
+        accY = dy;
+      }
+      if (usePath && (accX !== 0 || accY !== 0)) {
+        if (Math.abs(accY) > Math.abs(accX)) me.direction = accY > 0 ? 'down' : 'up';
+        else me.direction = accX > 0 ? 'right' : 'left';
+      }
+    }
+    if (!usePath) {
+      if (keys['ArrowUp'] || keys['KeyW']) { accY = -1; me.direction = 'up'; }
+      if (keys['ArrowDown'] || keys['KeyS']) { accY = 1; me.direction = 'down'; }
+      if (keys['ArrowLeft'] || keys['KeyA']) { accX = -1; me.direction = 'left'; }
+      if (keys['ArrowRight'] || keys['KeyD']) { accX = 1; me.direction = 'right'; }
+    }
+    const preWalkX = me.x, preWalkY = me.y;
+    if (accX !== 0 || accY !== 0) {
+      const len = Math.sqrt(accX * accX + accY * accY) || 1;
+      const step = Math.min(MOVE_SPEED, len);
+      const nx = me.x + (accX / len) * step;
+      const ny = me.y + (accY / len) * step;
+      /** Quiz Battle + เส้นทาง: ห้ามเลื่อนแกนเดียว (slide) — ไม่งั้นเดินทแยงหลุดออกนอกเลนได้ */
+      const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobby(nx, ny, me.x, me.y)) {
+        me.x = nx;
+        me.y = ny;
+      } else if (!pathStrict) {
+        if (canWalkLikeLobby(nx, me.y, me.x, me.y)) {
+          me.x = nx;
+        } else if (canWalkLikeLobby(me.x, ny, me.x, me.y)) {
+          me.y = ny;
+        }
+      }
+    }
+    me.x = Math.max(0, Math.min(w - 0.01, me.x));
+    me.y = Math.max(0, Math.min(h - 0.01, me.y));
+    enforceQuizBattleLaneOnMePlay();
+    const movedThisTick = Math.abs(me.x - preWalkX) > 1e-5 || Math.abs(me.y - preWalkY) > 1e-5;
+    me.isWalking = !!(accX !== 0 || accY !== 0) || playPath.length > 0 || movedThisTick;
+    const now = Date.now();
+    if (now - lastSend > 80) { lastSend = now; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+    maybeAutoOpenQuizBattle();
+    draw();
+    requestAnimationFrame(tick);
+  }
+
+  const chatForm = document.getElementById('chat-form');
+  if (chatForm) {
+    chatForm.addEventListener('submit', (e) => {
+      e.preventDefault();
+      const input = document.getElementById('chat-input');
+      const text = (input && input.value || '').trim();
+      if (text) { socket.emit('chat', text); if (input) input.value = ''; }
+    });
+  }
+  document.getElementById('btn-leave').addEventListener('click', () => {
+    socket.emit('leave-space');
+    const mid = params.get('map');
+    if (previewMode && mid) {
+      var edQ = '?id=' + encodeURIComponent(mid) + (editorEmbedReturn ? '&embed=1' : '');
+      window.location.replace(BASE + '/editor.html' + edQ);
+    } else {
+      window.location.replace(BASE + '/lobby.html');
+    }
+  });
+  (function wireQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (!ov) return;
+    ov.addEventListener('click', (e) => {
+      const t = e.target;
+      if (!t) return;
+      if (t.classList && t.classList.contains('quiz-battle-choice')) {
+        const idx = parseInt(t.getAttribute('data-idx'), 10);
+        if (Number.isFinite(idx) && idx >= 0 && idx <= 2) trySubmitQuizBattleChoice(idx);
+        return;
+      }
+      if (t.id === 'quiz-battle-mcq-close') {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+        return;
+      }
+      if (t.classList && t.classList.contains('quiz-battle-mcq-backdrop')) {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+      }
+    });
+  })();
+  (function wireQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    btn.addEventListener('click', (ev) => {
+      if (!isQuizCarry() || !mapData || isChatFocused()) return;
+      if (!btn.classList.contains('quiz-carry-grab-btn--active')) return;
+      ev.preventDefault();
+      if (myId == null) return;
+      tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+    });
+  })();
+
+  (function wireGauntletCrownHowtoPrimary() {
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn) return;
+    btn.addEventListener('click', () => {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'howto') return;
+        const humans = quizCarryPregameHumanIds();
+        if (!(humans.length === 1 || isMePlayHost())) return;
+        beginJumpSurviveMissionCountdownThenRun();
+        return;
+      }
+      if (!isGauntletCrownHeistMapPlay()) return;
+      if (gauntletCrownPregamePhase !== 'howto') return;
+      if (myId == null || !isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+      if (humansReady) {
+        if (humans.length === 1 && isMePlayHost()) {
+          beginGauntletCrownCountdownThenRun();
+          return;
+        }
+        socket.emit('gauntlet-crown-lobby-start', {}, (r) => {
+          if (!r || !r.ok) { /* ignore */ }
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !gauntletCrownLobbyReadyMap[sid];
+      gauntletCrownLobbyReadyMap[sid] = next;
+      updateGauntletCrownHowtoHud();
+      socket.emit('gauntlet-crown-lobby-ready', { ready: next });
+    });
+  })();
+
+  (function wireQuizCarryPregameOverlay() {
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    if (!primary) return;
+    primary.addEventListener('click', () => {
+      if (!quizCarryPregameActive || myId == null) return;
+      if (!isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+      if (humansReady) {
+        /* ผู้เล่นจริงคนเดียว + พรีวิว: ไม่ต้องรอ ACK เซิร์ฟ (ห้องที่ map บนเซิร์ฟยังไม่ใช่ quiz_carry จะเคยล้มเหลว) */
+        if (humans.length === 1 && isMePlayHost()) {
+          endQuizCarryEmbedPregameAndStart();
+          return;
+        }
+        socket.emit('quiz-carry-lobby-start', {}, (r) => {
+          if (!r || !r.ok) showQuizCarryToast((r && r.error) || 'START ไม่ได้', false);
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !quizCarryLobbyReadyMap[sid];
+      quizCarryLobbyReadyMap[sid] = next;
+      updateQuizCarryPregameHud();
+      socket.emit('quiz-carry-lobby-ready', { ready: next });
+    });
+  })();
+  window.addEventListener('beforeunload', () => socket.emit('leave-space'));
+  window.addEventListener('resize', () => {
+    if (!mapData || !canvas) return;
+    resizeCanvas();
+    draw();
+  });
+})();
diff --git a/www/html/Game/public/play.js.bak-20260605-060328 b/www/html/Game/public/play.js.bak-20260605-060328
new file mode 100644
index 0000000..692283b
--- /dev/null
+++ b/www/html/Game/public/play.js.bak-20260605-060328
@@ -0,0 +1,11674 @@
+(function () {
+  const BASE = '/Game';
+  /** แผงคำถามบนแมป quiz_carry — ไฟล์อยู่ public/img/quiz-carry */
+  const QUIZ_CARRY_MAP_FEEDBACK_IMG = {
+    correct: BASE + '/img/quiz-carry/icon-Correct.png',
+    incorrect: BASE + '/img/quiz-carry/icon-Incorrect.png',
+    scorePlus: BASE + '/img/quiz-carry/score+10.png',
+  };
+  const QUIZ_MAP_CARRY_FEEDBACK_MS = 1400;
+  const params = new URLSearchParams(window.location.search);
+  const spaceId = params.get('space');
+  const nick = params.get('nick') || 'ผู้เล่น';
+  const previewMode = params.get('preview') === '1';
+  const forceDefaultCharacter = params.get('defaultChar') === '1';
+  const editorEmbedReturn = params.get('editorEmbed') === '1';
+  const playMapIdFromQuery = (params.get('map') || '').trim();
+  /** mapId จาก join / game-start — ใช้จับฉาก crown เมื่อ URL ไม่มี ?map= */
+  let playSessionMapId = playMapIdFromQuery;
+  /** สรุปภารกิจแบบ mock (popup-result ฯลฯ) — ใช้เฉพาะฉากนี้จาก editor (id ใน URL เช่น editor.html?id=mnorwqx1) */
+  const quizCarryMissionSummaryMapId = 'mnorwqx1';
+  const quizCarryUseMissionSummaryOverlay = playMapIdFromQuery === quizCarryMissionSummaryMapId;
+  /** Gauntlet พรมแดง — ฉากนี้จาก editor (?map=mno9kb07): วาดตัวหันขวา + ใช้รูป lane/laser จาก game-timing */
+  const GAUNTLET_FACE_RIGHT_MAP_ID = 'mno9kb07';
+  /** Jump Survival ฉาก Jumper — UI สรุปภารกิจแบบ crown + รูปใน /img/Jumper/ (editor ?map=mnptfts2) */
+  const JUMP_SURVIVE_MISSION_MAP_ID = 'mnptfts2';
+  /** จนกว่าโหลด /api/characters — placeholder ชั่วคราวก่อน join */
+  const LEGACY_PLACEHOLDER_CHARACTER_ID = '';
+  let firstCharacterDefaultResolved = null;
+  const firstCharacterDefaultPromise = fetch(BASE + '/api/characters')
+    .then((r) => r.json())
+    .then((list) => {
+      if (Array.isArray(list) && list.length > 0 && list[0] && list[0].id) {
+        firstCharacterDefaultResolved = String(list[0].id);
+      } else {
+        firstCharacterDefaultResolved = '';
+      }
+    })
+    .catch(() => {
+      firstCharacterDefaultResolved = '';
+    });
+  const lobbyLevelParam = params.get('lobbyLevel');
+  const lobbyCaseParam = params.get('case');
+  if (lobbyLevelParam || lobbyCaseParam) {
+    try {
+      window.__detectiveLobbyMeta = { level: lobbyLevelParam, caseId: lobbyCaseParam };
+    } catch (e) { /* ignore */ }
+  }
+
+  const POST_CASE_LOBBY_MAP_ID = 'mn8nx46h';
+
+  function isDetectiveMinigamePlay() {
+    if (params.get('detectiveReturn') === '1') return true;
+    try {
+      return sessionStorage.getItem('detectiveMinigameReturn') === '1';
+    } catch (e) {
+      return false;
+    }
+  }
+
+  function buildRoomLobbyReturnHref() {
+    let h = 'room-lobby.html?space=' + encodeURIComponent(spaceId) + '&nick=' + encodeURIComponent(nick);
+    h += '&map=' + encodeURIComponent(POST_CASE_LOBBY_MAP_ID);
+    try {
+      const dr = localStorage.getItem('lastCreatedSpaceName');
+      if (dr) h += '&displayRoom=' + encodeURIComponent(dr);
+    } catch (e) { /* ignore */ }
+    try {
+      const meta = window.__detectiveLobbyMeta;
+      if (meta && meta.level != null && String(meta.level).trim()) {
+        h += '&lobbyLevel=' + encodeURIComponent(String(meta.level).trim());
+      }
+      if (meta && meta.caseId != null && String(meta.caseId).trim()) {
+        h += '&caseId=' + encodeURIComponent(String(meta.caseId).trim());
+      }
+    } catch (e2) { /* ignore */ }
+    try {
+      if (sessionStorage.getItem('detectiveMinigameReturn') === '1') {
+        h += '&detectiveReturn=1';
+        sessionStorage.removeItem('detectiveMinigameReturn');
+      }
+    } catch (e3) { /* ignore */ }
+    if (params.get('detectiveReturn') === '1' && h.indexOf('detectiveReturn') < 0) {
+      h += '&detectiveReturn=1';
+    }
+    return h;
+  }
+
+  function finishDetectiveMinigameAndReturnLobby() {
+    quizCarrySessionEnded = true;
+    try { sessionStorage.setItem('detectiveMinigameReturn', '1'); } catch (e) { /* ignore */ }
+    const go = function () {
+      window.location.href = buildRoomLobbyReturnHref();
+    };
+    if (socket && socket.connected) {
+      socket.emit('detective-minigame-finished', {}, function (res) {
+        if (res && res.ok) go();
+        else go();
+      });
+    } else {
+      go();
+    }
+  }
+  /** ทดสอบจากเอดิเตอร์: เติมบอทให้ครบจำนวน (รวมผู้เล่นจริง) — ?fillTotal=6 (ค่าเริ่ม 6) */
+  const previewFillBots = previewMode && editorEmbedReturn;
+  const previewTargetHeadcount = Math.min(24, Math.max(1, parseInt(params.get('fillTotal'), 10) || 6));
+  let detectiveCaseFillBots = false;
+  let detectiveBotSlotCount = 0;
+  function playBotsEnabled() {
+    return previewFillBots || detectiveCaseFillBots;
+  }
+  function playBotTargetHeadcount() {
+    if (previewFillBots) return previewTargetHeadcount;
+    if (detectiveCaseFillBots) return countPlayHumans() + detectiveBotSlotCount;
+    return countPlayHumans();
+  }
+  const PREVIEW_BOT_PREFIX = '__pv_bot_';
+  let previewBotSeq = 0;
+  /** Stack preview: บอทไม่วาบบนแผนที่ — ใช้ไฮไลต์แถบแข่งแทน */
+  let lastStackPreviewActorId = null;
+  let lastStackPreviewActorUntil = 0;
+  /** Stack preview: สลับตา Player 1 = มนุษย์, 2–6 = บอท (เฉพาะตาปัจจุบันเล่นได้) */
+  let stackTurnCount = 6;
+  let stackPreviewTurnOrder = null;
+  let stackPreviewTurnIndex = 0;
+  let stackPreviewBotThinkUntil = 0;
+
+  function rebuildStackPreviewTurnOrder() {
+    if (!playBotsEnabled() || !mapData || mapData.gameType !== 'stack') {
+      stackPreviewTurnOrder = null;
+      stackTurnCount = 1;
+      return;
+    }
+    const bots = [...others.keys()].filter(isPreviewBotId).sort();
+    stackTurnCount = Math.max(1, Math.min(12, playBotTargetHeadcount()));
+    stackPreviewTurnOrder = [{ kind: 'human', seat: 1 }];
+    for (let i = 0; i < stackTurnCount - 1; i++) {
+      stackPreviewTurnOrder.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+    }
+    stackPreviewTurnIndex = 0;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function advanceStackPreviewTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return;
+    stackPreviewTurnIndex = (stackPreviewTurnIndex + 1) % stackTurnCount;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function isStackPreviewHumanTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return true;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return !!(cur && cur.kind === 'human');
+  }
+
+  function getStackPreviewCurrentSeat() {
+    if (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return 1;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return cur && cur.seat ? cur.seat : stackPreviewTurnIndex + 1;
+  }
+  if (!spaceId) { window.location.replace(BASE + '/lobby.html'); return; }
+
+  const socket = io({ path: BASE + '/socket.io' });
+  const canvas = document.getElementById('game-canvas');
+  const ctx = canvas.getContext('2d');
+  let mapData = null, tileSize = 32, myId = null;
+  let stackMini = null;
+  let stackFall = null;
+  let lastStackTickMs = performance.now();
+  let mapBackgroundImg = null;
+  /** โหลดจาก mapData.gridImageLibrary — ดัชนีตรงกับ gridImageCells[y][x] */
+  let mapGridImageImgs = [];
+  let mapGridImageHeldImgs = [];
+  let me = { x: 1, y: 1, direction: 'down', nickname: nick, isWalking: false, playTint: null, gauntletScore: 0, gauntletEliminated: false, tx: null, ty: null, quizCarryHeld: null };
+  const others = new Map();
+  /** Stack preview HUD: เทอร์มินัลล็อก (cyber UI) */
+  const STACK_PREVIEW_HUD_LOG_MAX = 8;
+  let stackPreviewHudLog = [];
+  function stackPreviewPushHudLog(line) {
+    if (!previewFillBots) return;
+    stackPreviewHudLog.push(String(line || '').slice(0, 96));
+    while (stackPreviewHudLog.length > STACK_PREVIEW_HUD_LOG_MAX) stackPreviewHudLog.shift();
+  }
+  function stackPreviewLogStackDrop(hit, actor) {
+    if (!previewFillBots || !hit) return;
+    const bid = actor && actor.botId;
+    let nm = 'NODE';
+    if (actor && actor.human) nm = (me.nickname || 'YOU').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    else if (bid && others.get(bid)) nm = String(others.get(bid).nickname || 'BOT').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    if (hit.miss) stackPreviewPushHudLog(`>>> ${nm}: SECTOR_MISS`);
+    else if (hit.perfect) stackPreviewPushHudLog(`>>> ${nm}: PERFECT +${hit.pts} SYN`);
+    else stackPreviewPushHudLog(`>>> ${nm}: LOCK +${hit.pts}`);
+  }
+  const keys = {};
+  const characterImages = {};
+  function createDefaultAvatarImg() {
+    const c = document.createElement('canvas');
+    c.width = 64; c.height = 64;
+    const ctx = c.getContext('2d');
+    ctx.fillStyle = '#7aa2f7';
+    ctx.beginPath();
+    ctx.arc(32, 22, 14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#9ece6a';
+    ctx.beginPath();
+    ctx.arc(32, 48, 18, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#1a1b26';
+    ctx.beginPath();
+    ctx.arc(28, 20, 3, 0, Math.PI * 2);
+    ctx.arc(36, 20, 3, 0, Math.PI * 2);
+    ctx.fill();
+    const img = new Image();
+    img.src = c.toDataURL('image/png');
+    return img;
+  }
+  const defaultAvatarImg = createDefaultAvatarImg();
+  const characterAnimations = {};
+  const characterIdleAnimations = {};
+  const CHARACTER_ANIM_FRAMES = 4;
+  const CHARACTER_ANIM_FRAME_MS = 200;
+
+  /** จังหวะเดินลูปคงที่ 4 เฟรม — อย่า modulo ด้วยจำนวนเฟรมที่โหลดได้แล้ว (ไม่งั้นเฟรมกลางหาย/ลูปสั้นลง) */
+  function walkAnimPhaseIndex(now, isWalking) {
+    const t = isWalking ? (typeof now === 'number' ? now : Date.now()) : 0;
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  /** เลือกเฟรมสูงสุดที่โหลดแล้วและ <= phase (เดิมถอย) */
+  function pickLoadedWalkFrameIndex(anim, phase) {
+    if (!anim || !anim.frames || !anim.frames.length) return -1;
+    const maxK = Math.min(phase, anim.frames.length - 1, CHARACTER_ANIM_FRAMES - 1);
+    for (let k = maxK; k >= 0; k--) {
+      const f = anim.frames[k];
+      if (f && f.complete && f.naturalWidth) return k;
+    }
+    return -1;
+  }
+
+  /** ตัวละครอัปโหลดจากระบบมักเป็น char- + ตัวเลข (อาจมี suffix) — ไม่มี idle strip / idle layer ครบทุกทิศ */
+  function isUploadedCharAssetId(id) {
+    if (!id) return false;
+    const s = String(id).trim();
+    return /^char-\d/i.test(s);
+  }
+
+  function useMultiFrameIdleSpriteSheets(id) {
+    if (!id) return true;
+    return !isUploadedCharAssetId(id);
+  }
+
+  function ensureCharacterIdleAnim(id, dir) {
+    const d = dir || 'down';
+    /* char-* ไม่มี *_idle_0.png — ใช้ strip เดิน dir_0..3 เป็น idle ต่อทิศ (มีลูป) แทนรูปเดียวที่มักไม่มี */
+    if (!useMultiFrameIdleSpriteSheets(id)) {
+      const key = String(id) + '_' + d + '_idle';
+      let anim = characterIdleAnimations[key];
+      if (!anim) {
+        anim = { frames: [], fallback: null };
+        characterIdleAnimations[key] = anim;
+        const enc = encodeURIComponent(id);
+        for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+          const img = new Image();
+          img.src = BASE + '/img/characters/' + enc + '_' + d + '_' + i + '.png';
+          anim.frames.push(img);
+        }
+        const fb = new Image();
+        fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+        anim.fallback = fb;
+      }
+      return anim;
+    }
+    const key = id + '_' + d + '_idle';
+    let anim = characterIdleAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterIdleAnimations[key] = anim;
+      const enc = encodeURIComponent(id);
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + enc + '_' + d + '_idle_' + i + '.png';
+        anim.frames.push(img);
+      }
+      const fb = new Image();
+      fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+      anim.fallback = fb;
+    }
+    return anim;
+  }
+
+  /** ลูป idle ขณะยืน — ใช้จังหวะเวลาเหมือนเดิน (CHARACTER_ANIM_FRAME_MS) */
+  function idleAnimPhaseIndex(now) {
+    const t = typeof now === 'number' ? now : Date.now();
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  function characterIdleSpritesVisible(id, dir) {
+    if (!id) return false;
+    const anim = ensureCharacterIdleAnim(id, dir || 'down');
+    if (anim.fallback && anim.fallback.complete && anim.fallback.naturalWidth) return true;
+    for (let i = 0; i < anim.frames.length; i++) {
+      const f = anim.frames[i];
+      if (f && f.complete && f.naturalWidth) return true;
+    }
+    return false;
+  }
+
+  /** สุ่มสีตามเลเยอร์เดียวกับ character.html: bodyColor / hairColor / headColor (ลำดับซ้อนเหมือน composeLayeredFrame) */
+  const PLAY_LAYER_ORDER = ['shadow', 'bodyColor', 'bodyStroke', 'headColor', 'headStroke', 'hairColor', 'hairStroke', 'face'];
+  const PLAY_LAYER_TINT_KEY = { bodyColor: 'body', headColor: 'head', hairColor: 'hair' };
+  const PLAY_TINT_HEAD = ['#eaa78a', '#fbd5c4', '#fae9e1'];
+  const PLAY_TINT_HAIR = ['#d72520', '#ef8508', '#efe237', '#5bb443', '#2585cb', '#3f4ead', '#b53fd6', '#ef62b9'];
+  const PLAY_TINT_BODY = ['#fb4941', '#feaa11', '#fefe6d', '#adfd85', '#45fbfd', '#799afe', '#f87dff', '#fec1fe'];
+  const playLayerMode = {};
+  /** คิว probe ครบ up/down/left/right แล้ว — กันทิศที่ไม่มีไฟล์ layer ไปตก fallback แถบทั้งทั้งที่ทิศอื่นมี */
+  const playLayerAllDirsQueued = {};
+  /** จาก GET /api/characters — hasLayerFiles สแกนจากชื่อไฟล์จริง (แม่นกว่า probe จาก <img> อย่างเดียว) */
+  let playCharLayerApi = { status: 'idle', map: null };
+  /** id → Set เลเยอร์ที่มีไฟล์จริง (จาก GET /api/characters) — กันยิง URL เลเยอร์ที่ไม่เคยอัปโหลด → 404 รกคอนโซล */
+  const playCharDiskLayersById = Object.create(null);
+
+  function ensurePlayCharLayerListFetch() {
+    if (playCharLayerApi.status !== 'idle') return;
+    playCharLayerApi.status = 'loading';
+    fetch(BASE + '/api/characters')
+      .then((r) => r.json())
+      .then((list) => {
+        const map = Object.create(null);
+        if (Array.isArray(list)) {
+          list.forEach((c) => {
+            if (!c || !c.id) return;
+            map[c.id] = !!c.hasLayerFiles;
+            if (Array.isArray(c.layers) && c.layers.length) {
+              const st = new Set();
+              c.layers.forEach((n) => {
+                if (typeof n === 'string' && n.length) st.add(n);
+              });
+              if (st.size) playCharDiskLayersById[c.id] = st;
+              else delete playCharDiskLayersById[c.id];
+            } else {
+              delete playCharDiskLayersById[c.id];
+            }
+          });
+        }
+        playCharLayerApi = { status: 'done', map };
+      })
+      .catch(() => {
+        playCharLayerApi = { status: 'done', map: Object.create(null) };
+      });
+  }
+
+  /** @returns {boolean|null} true/false จาก API, null = ยังไม่โหลดหรือไม่มีรายการ id นี้ */
+  function playCharLayerFromApi(characterId) {
+    if (playCharLayerApi.status !== 'done' || !characterId) return null;
+    if (Object.prototype.hasOwnProperty.call(playCharLayerApi.map, characterId)) {
+      return playCharLayerApi.map[characterId];
+    }
+    return null;
+  }
+
+  /** ถ้าเซิร์ฟเวอร์ส่งรายชื่อเลเยอร์ที่มีบนดิสก์ — ไม่โหลดเลเยอร์อื่น (ลด 404) */
+  function playCharDiskLayersSet(characterId) {
+    if (!characterId || playCharLayerApi.status !== 'done') return null;
+    const s = playCharDiskLayersById[characterId];
+    return s && s.size ? s : null;
+  }
+
+  const playLayerImageCache = new Map();
+  const playLayerCompositeCache = new Map();
+  function pickRandomPlayTint() {
+    return {
+      head: PLAY_TINT_HEAD[Math.floor(Math.random() * PLAY_TINT_HEAD.length)],
+      hair: PLAY_TINT_HAIR[Math.floor(Math.random() * PLAY_TINT_HAIR.length)],
+      body: PLAY_TINT_BODY[Math.floor(Math.random() * PLAY_TINT_BODY.length)],
+    };
+  }
+
+  /** FNV-1a 32-bit — แยกดัชนี head/hair/body ได้กระจายกว่า hash*31 เดิม (กันบอท __pv_bot_N สีซ้ำ) */
+  function hashStringFnv1a32(str) {
+    let h = 2166136261 >>> 0;
+    const s = String(str || '');
+    for (let i = 0; i < s.length; i++) {
+      h ^= s.charCodeAt(i);
+      h = Math.imul(h, 16777619) >>> 0;
+    }
+    return h >>> 0;
+  }
+
+  function playTintFromPeerId(id) {
+    const s = String(id || 'x');
+    const h0 = hashStringFnv1a32(s);
+    const h1 = hashStringFnv1a32(s + '\n1hair');
+    const h2 = hashStringFnv1a32(s + '\n2body');
+    return {
+      head: PLAY_TINT_HEAD[h0 % PLAY_TINT_HEAD.length],
+      hair: PLAY_TINT_HAIR[h1 % PLAY_TINT_HAIR.length],
+      body: PLAY_TINT_BODY[h2 % PLAY_TINT_BODY.length],
+    };
+  }
+
+  function hexToRgb01(hex) {
+    const h = (hex || '').replace('#', '').trim();
+    if (h.length !== 6) return [1, 1, 1];
+    return [
+      parseInt(h.slice(0, 2), 16) / 255,
+      parseInt(h.slice(2, 4), 16) / 255,
+      parseInt(h.slice(4, 6), 16) / 255,
+    ];
+  }
+
+  function tintPlayLayerImageData(imageData, tintHex) {
+    const rgb = hexToRgb01(tintHex);
+    const tr = rgb[0], tg = rgb[1], tb = rgb[2];
+    const d = imageData.data;
+    for (let i = 0; i < d.length; i += 4) {
+      if (d[i + 3] < 12) continue;
+      const r = d[i], g = d[i + 1], b = d[i + 2];
+      const L = (0.299 * r + 0.587 * g + 0.114 * b) / 255;
+      d[i] = Math.min(255, Math.round(tr * 255 * L));
+      d[i + 1] = Math.min(255, Math.round(tg * 255 * L));
+      d[i + 2] = Math.min(255, Math.round(tb * 255 * L));
+    }
+  }
+
+  function drawPlayTintedLayer(ctx, w, h, img, tintHex) {
+    if (!tintHex) {
+      ctx.drawImage(img, 0, 0, w, h);
+      return;
+    }
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const x = c.getContext('2d');
+    x.drawImage(img, 0, 0, w, h);
+    try {
+      const idata = x.getImageData(0, 0, w, h);
+      tintPlayLayerImageData(idata, tintHex);
+      x.putImageData(idata, 0, 0);
+    } catch (e) {
+      x.clearRect(0, 0, w, h);
+      x.drawImage(img, 0, 0, w, h);
+    }
+    ctx.drawImage(c, 0, 0, w, h);
+  }
+
+  function ensurePlayLayerImage(url) {
+    let img = playLayerImageCache.get(url);
+    if (!img) {
+      img = new Image();
+      img.src = url;
+      playLayerImageCache.set(url, img);
+    }
+    return img;
+  }
+
+  /** ลำดับลอง URL: เฟรมปัจจุบันแบบ multi → เฟรม 0 → แบบ single (ไม่มี _0_) เพื่อกันชื่อไฟล์ไม่ตรงกับที่เซิร์ฟเวอร์เขียน */
+  function layerUrlCandidates(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir;
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  /** เลเยอร์ idle: id_<dir>_idle_<n>_layer_<name>.png หรือ id_<dir>_idle_layer_<name>.png */
+  function layerUrlCandidatesIdle(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir + '_idle';
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  function shadowUrlCandidates(id, dir, frameIndex) {
+    const c = layerUrlCandidates(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  function shadowUrlCandidatesIdle(id, dir, frameIndex) {
+    const c = layerUrlCandidatesIdle(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  /** ลองทีละ URL — อย่า set src พร้อมกันหลายรูป (เดิมทำให้ legacy `id_dir_layer_x` โดน 404 ทุกเลเยอร์ทุกทิศทั้งที่มีแค่ `id_dir_0_layer_x`) */
+  function resolvePlayLayerImage(urls) {
+    for (let i = 0; i < urls.length; i++) {
+      const img = ensurePlayLayerImage(urls[i]);
+      if (!img.complete) return { status: 'pending' };
+      if (img.naturalWidth > 0) return { status: 'ok', img };
+    }
+    return { status: 'missing' };
+  }
+
+  function ensurePlayLayerProbesAllDirections(characterId) {
+    if (!characterId || playLayerAllDirsQueued[characterId]) return;
+    playLayerAllDirsQueued[characterId] = true;
+    ['up', 'down', 'left', 'right'].forEach((d) => ensurePlayLayerProbe(characterId, d));
+  }
+
+  function playCharAnyDirectionLayered(characterId) {
+    if (!characterId) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => playLayerMode[characterId + '|' + d] === 'layered');
+  }
+
+  /** รอเฉพาะตอนยังไม่เจอ layered เลย — ถ้ามีทิศหนึ่ง layered แล้ว ไม่ต้องรอทิศอื่น */
+  function playCharLayerDiscoveryPending(characterId) {
+    if (!characterId) return true;
+    const api = playCharLayerFromApi(characterId);
+    if (api === true || api === false) return false;
+    if (playCharAnyDirectionLayered(characterId)) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => {
+      const m = playLayerMode[characterId + '|' + d];
+      return m === undefined || m === 'pending';
+    });
+  }
+
+  function ensurePlayLayerProbe(characterId, dir) {
+    const key = characterId + '|' + dir;
+    if (playLayerMode[key] !== undefined && playLayerMode[key] !== 'pending') return;
+    if (playLayerMode[key] === 'pending') return;
+    playLayerMode[key] = 'pending';
+    const cands = layerUrlCandidates(characterId, dir, 'bodyColor', 0);
+    let ci = 0;
+    function tryNextProbe() {
+      if (playLayerMode[key] !== 'pending') return;
+      if (ci >= cands.length) {
+        playLayerMode[key] = 'none';
+        return;
+      }
+      const url = cands[ci++];
+      const img = ensurePlayLayerImage(url);
+      const fin = () => {
+        if (playLayerMode[key] !== 'pending') return;
+        if (img.naturalWidth > 0) {
+          playLayerMode[key] = 'layered';
+          return;
+        }
+        tryNextProbe();
+      };
+      img.onload = fin;
+      img.onerror = fin;
+      if (img.complete) fin();
+    }
+    tryNextProbe();
+  }
+
+  function getCharacterAnimFrameIndex(id, dir, now, isWalking) {
+    if (!id) return 0;
+    const key = id + '_' + dir;
+    const anim = characterAnimations[key];
+    if (!anim) return 0;
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    return fi >= 0 ? fi : 0;
+  }
+
+  function tryComposePlayLayersFromFiles(rawImg, id, dir, frameIndex, tint, opts) {
+    const useIdle = opts && opts.idle;
+    if (!rawImg || !rawImg.naturalWidth || !rawImg.naturalHeight) return null;
+    const w = rawImg.naturalWidth, h = rawImg.naturalHeight;
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const cctx = c.getContext('2d');
+    let anyTintColorLayer = false;
+    let skippedShadowWhilePending = false;
+    const diskLayers = playCharDiskLayersSet(id);
+    /* ยืน (opts.idle): ลอง compose จาก *_idle_*_layer_* เหมือนหน้า character upload — รวม char-* ที่อัปโหลด idle เลเยอร์; ถ้าไม่มีไฟล์จะ missing → ไม่มีเลเยอร์ย้อม → getPlayTintedAvatarSource fallback ไป walk compose */
+    const idleLayerStripes = !!useIdle;
+    const resDir = dir;
+    const resFi = frameIndex;
+    for (let li = 0; li < PLAY_LAYER_ORDER.length; li++) {
+      const layerName = PLAY_LAYER_ORDER[li];
+      if (diskLayers && layerName !== 'shadow' && !diskLayers.has(layerName)) continue;
+      /* char-* หันหลัง (up): ไม่มี face ทิศนี้ — ข้ามกันตาหน้าซ้อนหลังหัว; ซ้าย/ขวา/หน้าใช้ face ตามทิศได้ */
+      if (layerName === 'face' && isUploadedCharAssetId(id) && dir === 'up') {
+        continue;
+      }
+      let urls;
+      if (layerName === 'shadow') {
+        urls = idleLayerStripes
+          ? shadowUrlCandidatesIdle(id, dir, frameIndex)
+          : shadowUrlCandidates(id, resDir, resFi);
+      } else {
+        urls = idleLayerStripes
+          ? layerUrlCandidatesIdle(id, dir, layerName, frameIndex)
+          : layerUrlCandidates(id, resDir, layerName, resFi);
+      }
+      const r = resolvePlayLayerImage(urls);
+      /* เงาโหลดช้า/404 บ่อย — อย่าให้บล็อกทั้งคอมโพส (ไม่งั้นตกไป fallback แถบแนวตั้งแทนเลเยอร์จริง) */
+      if (r.status === 'pending' && layerName === 'shadow') {
+        skippedShadowWhilePending = true;
+        continue;
+      }
+      if (r.status === 'pending') return null;
+      if (r.status === 'missing') continue;
+      const tintHex = PLAY_LAYER_TINT_KEY[layerName] ? tint[PLAY_LAYER_TINT_KEY[layerName]] : null;
+      if (PLAY_LAYER_TINT_KEY[layerName]) anyTintColorLayer = true;
+      drawPlayTintedLayer(cctx, w, h, r.img, tintHex);
+    }
+    /* ถ้าโหลดได้แต่ไม่มีเลเยอร์สีเลย จะเหลือแต่ stroke → ตัวขาว — ใช้ PNG รวมแทน */
+    if (!anyTintColorLayer) return null;
+    return { canvas: c, skipCache: skippedShadowWhilePending };
+  }
+
+  function getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, tint) {
+    if (!tint || !characterId || !rawImg) return rawImg;
+    ensurePlayCharLayerListFetch();
+    ensurePlayLayerProbesAllDirections(characterId);
+    const dirn = dir || 'down';
+    const frameIndexWalk = getCharacterAnimFrameIndex(characterId, dirn, timeMs, isWalking);
+    const idlePhase = idleAnimPhaseIndex(typeof timeMs === 'number' ? timeMs : Date.now());
+
+    if (playCharLayerDiscoveryPending(characterId)) return rawImg;
+
+    const apiFlag = playCharLayerFromApi(characterId);
+    /* เหมือนเดิม: มีเลเยอร์แยกไฟล์เมื่อ API บอก hasLayerFiles หรือ probe เจอ — gen สีทำบน canvas จาก *_layer_* เท่านั้น */
+    const charHasLayerFiles = apiFlag === true
+      || (apiFlag == null && playCharAnyDirectionLayered(characterId));
+
+    /* มี PNG idle รวม — ใช้เมื่อไม่มีระบบเลเยอร์สี (ถ้ามีเลเยอร์ต้อง compose ไม่ return raw ขาว) */
+    if (!charHasLayerFiles && !isWalking && characterIdleSpritesVisible(characterId, dirn)) {
+      return rawImg;
+    }
+    const cacheKeyWalk = [characterId, dirn, frameIndexWalk, tint.head, tint.hair, tint.body, 'ct3'].join('|');
+
+    if (charHasLayerFiles) {
+      if (!isWalking) {
+        const composeFrame = isUploadedCharAssetId(characterId) ? 0 : idlePhase;
+        const cacheKeyIdle = [characterId, dirn, composeFrame, tint.head, tint.hair, tint.body, 'ct3', 'idleL'].join('|');
+        const hitI = playLayerCompositeCache.get(cacheKeyIdle);
+        if (hitI) return hitI;
+        const packI = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, composeFrame, tint, { idle: true });
+        if (packI && packI.canvas) {
+          if (!packI.skipCache) playLayerCompositeCache.set(cacheKeyIdle, packI.canvas);
+          return packI.canvas;
+        }
+      }
+      const hit = playLayerCompositeCache.get(cacheKeyWalk);
+      if (hit) return hit;
+      const pack = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, frameIndexWalk, tint, { idle: false });
+      if (pack && pack.canvas) {
+        if (!pack.skipCache) playLayerCompositeCache.set(cacheKeyWalk, pack.canvas);
+        return pack.canvas;
+      }
+      return rawImg;
+    }
+
+    /*
+     * ไม่มีไฟล์เลเยอร์ตาม API/probe — แสดง PNG รวม (ไม่ย้อมทั้งตัว: ไม่เหมือนระบบ gen สีแบบเลเยอร์เดิม)
+     */
+    return rawImg;
+  }
+
+  function getCharacterImg(id, direction) {
+    if (!id) return null;
+    const key = id + '_' + (direction || 'down');
+    if (characterImages[key]) return characterImages[key];
+    const img = new Image();
+    img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + (direction || 'down') + '.png';
+    characterImages[key] = img;
+    return img;
+  }
+
+  function getCharacterFrame(id, direction, now, isWalking) {
+    if (!id) return null;
+    const dir = direction || 'down';
+    const t = typeof now === 'number' ? now : Date.now();
+    if (!isWalking) {
+      const idleAnim = ensureCharacterIdleAnim(id, dir);
+      let idlePhase = idleAnimPhaseIndex(t);
+      if (isUploadedCharAssetId(id)) idlePhase = 0;
+      const idleFi = pickLoadedWalkFrameIndex(idleAnim, idlePhase);
+      if (idleFi >= 0) return idleAnim.frames[idleFi];
+      const idfb = idleAnim.fallback;
+      if (idfb && idfb.complete && idfb.naturalWidth) return idfb;
+    }
+    const key = id + '_' + dir;
+    let anim = characterAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterAnimations[key] = anim;
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + dir + '_' + i + '.png';
+        anim.frames.push(img);
+      }
+      anim.fallback = getCharacterImg(id, dir);
+    }
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    if (fi >= 0) return anim.frames[fi];
+    const fb = anim.fallback;
+    if (fb && fb.complete && fb.naturalWidth) return fb;
+    return null;
+  }
+
+  function getAvatarImg(characterId, direction, now, isWalking) {
+    const img = characterId ? getCharacterFrame(characterId, direction, now, isWalking) : null;
+    if (img) return img;
+    return defaultAvatarImg;
+  }
+  function getStoredCharacterId() {
+    try {
+      let v = localStorage.getItem('gameCharacterId');
+      if (v === 'Chatest') v = ''; // legacy placeholder — ไม่มี sprite จริง
+      if (v) return v;
+    } catch (e) { /* ignore */ }
+    if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+    return firstCharacterDefaultResolved || '';
+  }
+  function getPlayCharacterId() {
+    if (forceDefaultCharacter) {
+      if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+      return firstCharacterDefaultResolved || '';
+    }
+    return getStoredCharacterId();
+  }
+  const MOVE_SPEED = 0.15;
+  const PATH_ARRIVE_THRESH = 0.15;
+
+  function isMovementKey(code) {
+    return ['KeyW','KeyA','KeyS','KeyD','ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].indexOf(code) !== -1;
+  }
+  function isChatFocused() {
+    return false;
+  }
+  let zoom = 1.4;
+  let froggerScore = 0;
+  let lastFroggerKey = 0;
+  let gauntletObstacles = [];
+  /** อินเทอร์โพเลตการวาด obstacle ระหว่างแพ็กเก็ต sync (~220ms) */
+  let gauntletObsRenderPrev = [];
+  let gauntletObsRenderNext = [];
+  let gauntletObsBlendT0 = 0;
+  let meGauntletJumpTicks = 0;
+  /** ค่าที่ใช้วาดการยกตัว (เลอร์ปจาก meGauntletJumpTicks ให้โค้งกระโดดไม่กระตุก) */
+  let meGauntletJumpVis = 0;
+  /** ซิงก์จากเซิร์ฟเวอร์ (gauntlet-sync / GET /api/game-timing) */
+  let gauntletRuntimeTickMs = 220;
+  let gauntletRuntimeJumpTicks = 16;
+  /** Stack: รอบสวิงต่อวินาที — จาก GET /api/game-timing · ค่าน้อย = สวิงช้า */
+  let playStackSwingHz = 0.55;
+  /** Stack: ความกว้างบล็อก (tile) — null = คำนวณจากโซนลงบนแผนที่ */
+  let playStackBlockWidthTiles = null;
+  /** กระโดดให้รอด: ความสูงกระโดด = ทวีคูณ × ความสูงตัว (ch×tile) — จาก GET /api/game-timing */
+  let playJumpSurviveJumpHeightMult = 1.5;
+  /** จำกัดเวลารอบภารกิจกระโดดขึ้นแท่น (วินาที) — จาก GET /api/game-timing; 0 = ใช้ค่าเริ่ม 60 ในเกม */
+  let playJumpSurviveMissionTimeSec = 0;
+  /** ยิงยานอวกาศ (space_shooter): เวลารอบจาก game-timing; 0 = ใช้ค่าเริ่ม 90 ในเกมถ้าแมปไม่ทับ */
+  let playSpaceShooterMissionTimeSec = 0;
+  /** 0 = ไม่จำกัด — จาก game-timing / gauntlet-sync (พรมแดง Gauntlet เท่านั้น) */
+  let gauntletRuntimeTimeLimitSec = 0;
+  /** เวลาสิ้นสุดรอบ (epoch ms) จากเซิร์ฟเวอร์ — null = ไม่จับเวลา */
+  let gauntletEndsAtMs = null;
+  /** Crown (mno9kb07): เซิร์ฟยังไม่ปล่อยรัน — หยุด tick / เวลา */
+  let gauntletCrownRunHeldRemote = false;
+  /** null | 'howto' | 'countdown' | 'live' — พรีรันก่อน GO */
+  let gauntletCrownPregamePhase = null;
+  let gauntletCrownLobbyReadyMap = {};
+  let gauntletCrownCountdownTimer = null;
+  let lastGauntletJumpKey = 0;
+  /** รูป lane: หลาย URL สุ่มตาม id คงที่ · laser: แยกบน/ล่าง/เส้น + สี/ความหนา */
+  let gauntletLaneImageUrls = [];
+  let gauntletLaserTopUrl = '';
+  let gauntletLaserBottomUrl = '';
+  let gauntletLaserLineUrl = '';
+  let gauntletLaserFillColor = 'rgba(140,230,255,0.42)';
+  let gauntletLaserStrokeColor = 'rgba(255,220,255,0.9)';
+  let gauntletLaserLineWidthPx = 2;
+  const gauntletAssetImageCache = new Map();
+
+  /** แปลง URL จาก Admin/game-timing ให้โหลดได้ (nginx เสิร์ฟจาก /Game/...) */
+  function normalizeGauntletAssetUrlForPlay(u) {
+    if (typeof u !== 'string') return '';
+    const t = u.trim();
+    if (!t) return '';
+    if (/^https?:\/\//i.test(t)) return t;
+    const qIdx = t.indexOf('?');
+    const base = (qIdx >= 0 ? t.slice(0, qIdx) : t).trim();
+    const qs = qIdx >= 0 ? t.slice(qIdx) : '';
+    if (!base) return '';
+    if (base.startsWith('/')) return base + qs;
+    if (/^Game\//i.test(base)) return '/' + base.replace(/^\/+/, '') + qs;
+    return base + qs;
+  }
+
+  function ensureGauntletAssetImage(url) {
+    const u = normalizeGauntletAssetUrlForPlay(typeof url === 'string' ? url : '');
+    if (!u) return null;
+    let rec = gauntletAssetImageCache.get(u);
+    if (rec) return rec;
+    rec = { img: new Image(), ready: false };
+    if (/^https?:\/\//i.test(u)) {
+      try { rec.img.crossOrigin = 'anonymous'; } catch (e) { /* ignore */ }
+    }
+    rec.img.onload = function () { rec.ready = true; };
+    rec.img.onerror = function () { rec.ready = false; };
+    rec.img.src = u;
+    gauntletAssetImageCache.set(u, rec);
+    return rec;
+  }
+
+  function pickGauntletLaneImageRec(obsId) {
+    if (!gauntletLaneImageUrls.length) return null;
+    const n = gauntletLaneImageUrls.length;
+    const idx = Math.abs(Number(obsId) | 0) % n;
+    const u = gauntletLaneImageUrls[idx];
+    return u ? ensureGauntletAssetImage(u) : null;
+  }
+
+  function clampClientLaserColor(s, def) {
+    const t = String(s || '').trim().slice(0, 100);
+    if (!t || /[<>"'`]/.test(t)) return def;
+    return t;
+  }
+
+  let playQuizPhaseLocal = null;
+  let playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+  let playQuizText = '';
+  let playQuizPhaseEndsAt = 0;
+  let playQuizTimerInterval = null;
+  /** Preview-only: real question pool + phased timer (matches server quiz-settings / map quizQuestions). */
+  let previewQuizPool = [];
+  let previewQuizTiming = { readMs: 10000, answerMs: 5000, betweenMs: 3500 };
+  let previewQuizStep = 'read';
+  let previewQuizCurrent = null;
+  let playLiveQuizScores = {};
+  /** คะแนนต่อคำตอบที่ถูกเมื่อส่งป้ายที่ฮับ/โซนส่ง — quiz_carry เท่านั้น */
+  const QUIZ_CARRY_POINTS_PER_CORRECT = 10;
+  /** quiz_carry: หยิบตัวเลือกมาวางโซนกลาง — เล่นพร้อมกัน (ไม่สลับตา) */
+  let quizCarryPool = [];
+  let quizCarryCurrent = null;
+  /** editor embed + preview: นับ 3–2–1 ก่อนโชว์คำถามและให้เดิน/หยิบได้ */
+  let quizCarryEmbedPendingQuestion = null;
+  let quizCarryEmbedCountdownStartAt = 0;
+  let quizCarryEmbedCountdownEndAt = 0;
+  /** quiz_carry: epoch ให้หยิบตัวเลือกได้ · epoch ปิดรอบตอบ (ตั้งที่ Admin แท็บหยิบมาวาง) */
+  let quizCarryOptionRevealAt = 0;
+  let quizCarryAnswerCloseAt = 0;
+  let quizCarryCarryTimingMs = { carryReadMs: 3000, carryAnswerMs: 5000 };
+  /** พรีวิว (รวม editor embed): จำนวนข้อที่เล่นก่อนโอเวอร์เลย์จบ — 0 = ไม่จบอัตโนมัติ */
+  let quizCarrySessionLength = 0;
+  let quizCarryRoundsCompleted = 0;
+  let quizCarrySessionEnded = false;
+  /** หลัง timeup บนโต๊ะ (embed): รอ 5s แล้วโชว์ result-complete / result-gameover */
+  let quizCarryResultEndTimer = null;
+  /** หลังโชว์ result-end (embed preview): รอ 5s แล้วกลับ room-lobby — ใช้ร่วม quiz_carry + crown */
+  let embedPreviewLobbyReturnTimer = null;
+  /** embed พรีวิว: รอ Ready / START ของโฮสต์ก่อนนับ 3–2–1 */
+  let quizCarryPregameActive = false;
+  let playHostId = null;
+  /** ซิงก์จากเซิร์ฟเวอร์: socketId → กด Ready แล้ว */
+  let quizCarryLobbyReadyMap = {};
+  /** จาก /api/quiz-settings carryMapPanelTheme — ใช้กับ #quiz-map-question-panel เฉพาะ quiz_carry */
+  let quizCarryMapPanelTheme = null;
+  /** จาก /api/quiz-settings carryEmbedCountdownTheme — สี/ขนาด overlay นับ 3-2-1 (embed) */
+  let quizCarryEmbedCountdownTheme = null;
+  /** จาก /api/quiz-settings carryChoicePlaqueThemes — ป้าย canvas ต่อช่องตัวเลือก 0..15 (null = ใช้ค่าเริ่มต้นทุกช่อง) */
+  let quizCarryChoicePlaqueThemes = null;
+  /** จาก carryChoicePlaqueMapScale — ขยายป้ายบนแมป + ฟอนต์ (0.85–2.5) */
+  let quizCarryPlaqueMapScale = 1.25;
+  const quizCarryChoiceImageCache = new Map();
+  /** สแนปจาก join-space (Node) — ใช้เมื่อ fetch HTTP quiz-settings ไม่ได้หรือไม่มีธีม */
+  let quizCarryJoinSettingsSnap = null;
+
+  /** quiz_carry — โซนตัวเลือกบนแมป / ธีมป้ายต่อช่องสูงสุด 16 */
+  const QUIZ_CARRY_MAX_OPTION_SLOTS = 16;
+
+  /** jump_survive — กล้องตามตัวในกรอบ + แพลตฟอร์มเลื่อนขึ้น (scroll) ไม่ลากทั้งฉาก */
+  let jumpSurviveCamCenterX = 0;
+  let jumpSurviveCamCenterY = 0;
+  let jumpSurviveEliminated = false;
+  /** จับเวลาโหมดกระโดดให้รอด (วินาทีบน HUD) */
+  let jumpSurviveSessionStartMs = 0;
+  let jumpSurvivePlatformScrollPx = 0;
+  let jumpSurviveVy = 0;
+  let jumpSurviveLastTickMs = 0;
+  let jumpSurviveJumpQueued = false;
+  let jumpSurviveOnGround = false;
+  let jumpSurviveLastEmitT = 0;
+  /** mnptfts2: howto → countdown → live → ended (คะแนน 100 ผู้รอดสุดท้าย) */
+  let jumpSurviveMissionPhase = null;
+  let jumpSurviveGameEnded = false;
+  let jumperMissionCountdownTimer = null;
+
+  /** space_shooter — ยิงหิน (จุดเกิดจากกริด P1–P6) */
+  let spaceShooterBullets = [];
+  let spaceShooterAsteroids = [];
+  let spaceShooterPopups = [];
+  let spaceShooterLastTickMs = 0;
+  let spaceShooterSpawnAccMs = 0;
+  let spaceShooterFireCd = 0;
+  let spaceShooterSessionStartMs = 0;
+  let spaceShooterLastMoveEmit = 0;
+  let spaceShooterGameEnded = false;
+
+  /** balloon_boss — ลูกโป้งยิงบอส (Mega Virus) */
+  let balloonBossPendingShots = [];
+  let balloonBossPlayerBullets = [];
+  let balloonBossBossBullets = [];
+  let balloonBossSessionStartMs = 0;
+  let balloonBossLastTickMs = 0;
+  let balloonBossLastMoveEmit = 0;
+  let balloonBossPlayerFireCd = 0;
+  let balloonBossGameEnded = false;
+  let balloonBossHitFx = [];
+  let balloonBossBossFireAcc = 0;
+  /** quiz_battle — โดม MCQ กด E (ข้อจาก battleQuizMcq) */
+  let quizBattleMcqPool = [];
+  let quizBattleAnsweredComps = new Set();
+  let quizBattleModalCompId = null;
+  const SPACE_SHOOTER_SHIP_COLORS = ['#50fa7b', '#ff79c6', '#ff5555', '#f1fa8c', '#bd93f9', '#8be9fd'];
+
+  document.getElementById('room-id').textContent = spaceId;
+
+  function hidePlayQuizHud() {
+    const sb = document.getElementById('play-quiz-scoreboard');
+    if (sb) sb.classList.add('is-hidden');
+    const fb = document.getElementById('play-quiz-feedback');
+    if (fb) { fb.classList.add('is-hidden'); fb.textContent = ''; }
+  }
+
+  function renderPlayQuizScoreboard(scores) {
+    const wrap = document.getElementById('play-quiz-scoreboard');
+    const ul = document.getElementById('play-quiz-scoreboard-list');
+    if (!wrap || !ul || !mapData || (!isQuiz() && !isQuizCarry() && !isQuizBattle())) return;
+    if (!scores || typeof scores !== 'object') return;
+    wrap.classList.remove('is-hidden');
+    ul.textContent = '';
+    const merged = { ...scores };
+    others.forEach((_, id) => { if (merged[id] == null) merged[id] = 0; });
+    if (myId != null && merged[myId] == null) merged[myId] = 0;
+    const rows = [];
+    if (myId != null) {
+      rows.push({ id: myId, nick: me.nickname || 'คุณ', sc: merged[myId] != null ? merged[myId] : 0 });
+    }
+    others.forEach((o, id) => {
+      rows.push({ id, nick: (o && o.nickname) ? String(o.nickname) : id, sc: merged[id] != null ? merged[id] : 0 });
+    });
+    rows.sort((a, b) => b.sc - a.sc || a.nick.localeCompare(b.nick, 'th'));
+    rows.forEach((row) => {
+      const li = document.createElement('li');
+      if (row.id === myId) li.className = 'play-quiz-scoreboard-me';
+      const spN = document.createElement('span');
+      spN.className = 'play-quiz-scoreboard-name';
+      spN.textContent = row.nick;
+      const spV = document.createElement('span');
+      spV.className = 'play-quiz-scoreboard-val';
+      spV.textContent = String(row.sc);
+      li.appendChild(spN);
+      li.appendChild(spV);
+      ul.appendChild(li);
+    });
+    if (isQuizCarry() && useCyberPlayHud()) {
+      wrap.classList.add('is-hidden');
+    }
+  }
+
+  function initPlayLiveQuizScoresZeros() {
+    if ((!isQuiz() && !isQuizCarry() && !isQuizBattle()) || myId == null) return;
+    playLiveQuizScores = {};
+    playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  function showPlayQuizFeedback(r) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el || !r || !r.results || myId == null) return;
+    let mine = null;
+    let botRight = 0, botWrong = 0;
+    for (let i = 0; i < r.results.length; i++) {
+      const row = r.results[i];
+      if (row.id === myId) mine = row;
+      else if (isPreviewBotId(row.id)) {
+        if (row.right) botRight++;
+        else botWrong++;
+      }
+    }
+    if (!mine) return;
+    el.classList.remove('is-hidden');
+    const botExtra = previewFillBots && (botRight + botWrong > 0)
+      ? ' · บอท ถูก ' + botRight + ' / ผิด ' + botWrong + ' (Bots: ' + botRight + ' right / ' + botWrong + ' wrong)'
+      : '';
+    if (mine.right) {
+      el.className = 'play-quiz-feedback play-quiz-feedback-ok';
+      el.textContent = 'คุณตอบถูก · คะแนนรวม ' + (typeof mine.score === 'number' ? mine.score : 0) + ' แต้ม' + botExtra;
+    } else {
+      el.className = 'play-quiz-feedback play-quiz-feedback-bad';
+      el.textContent = (mine.choice == null
+        ? 'คุณไม่ได้ยืนในโซนตอบ — นับเป็นผิด'
+        : 'คุณตอบผิด — กลับจุดเกิด และเข้าโซนตอบไม่ได้อีก') + botExtra;
+    }
+    if (typeof window.__playQuizFeedbackT === 'number') clearTimeout(window.__playQuizFeedbackT);
+    window.__playQuizFeedbackT = setTimeout(() => { el.classList.add('is-hidden'); }, 4200);
+  }
+
+  function getTileBoundsForOnesGrid(grid) {
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  function getQuizQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  /** quiz_carry: โซนทองพิเศษสำหรับข้อความคำถาม (ถ้าไม่วาด ใช้โซนกลางม่วงแทนใน syncPlayQuizMapPanel) */
+  function getQuizCarryQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  function clearQuizMapPanelThemeInline(panel, textEl) {
+    if (!panel || !textEl) return;
+    panel.style.removeProperty('--qmap-bg');
+    panel.style.removeProperty('--qmap-border');
+    panel.style.removeProperty('--qmap-border-w');
+    panel.style.removeProperty('--qmap-shadow');
+    panel.style.removeProperty('background');
+    panel.style.removeProperty('border');
+    panel.style.removeProperty('border-color');
+    panel.style.removeProperty('border-width');
+    panel.style.removeProperty('border-style');
+    panel.style.removeProperty('box-shadow');
+    textEl.style.removeProperty('--qmap-text');
+    textEl.style.removeProperty('--qmap-text-shadow');
+    textEl.style.removeProperty('color');
+    textEl.style.removeProperty('text-shadow');
+    textEl.style.removeProperty('font-size');
+    textEl.style.removeProperty('line-height');
+    textEl.style.removeProperty('width');
+    textEl.style.removeProperty('box-sizing');
+    textEl.style.removeProperty('max-height');
+    textEl.style.removeProperty('overflow');
+  }
+
+  function clearQuizMapQuestionCarryFeedback() {
+    if (typeof window.__quizMapCarryFeedbackT === 'number') {
+      clearTimeout(window.__quizMapCarryFeedbackT);
+      window.__quizMapCarryFeedbackT = null;
+    }
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (icon) {
+      icon.classList.add('is-hidden');
+      icon.removeAttribute('src');
+    }
+    if (scoreEl) scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+    if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  /** ไอคอนถูก/ผิดที่ขอบบนแผง + score+10 ตรงกลางใต้ข้อความ (เฉพาะถูก) — ตาม mock quiz_carry */
+  function showQuizMapQuestionCarryFeedback(isCorrect) {
+    if (!isQuizCarry()) return;
+    const panel = document.getElementById('quiz-map-question-panel');
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (!panel || !icon || panel.classList.contains('is-hidden')) return;
+    clearQuizMapQuestionCarryFeedback();
+    icon.src = isCorrect ? QUIZ_CARRY_MAP_FEEDBACK_IMG.correct : QUIZ_CARRY_MAP_FEEDBACK_IMG.incorrect;
+    icon.classList.remove('is-hidden');
+    if (isCorrect && scoreWrap && scoreEl) {
+      scoreEl.src = QUIZ_CARRY_MAP_FEEDBACK_IMG.scorePlus;
+      scoreWrap.classList.remove('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'false');
+      scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+      void scoreEl.offsetWidth;
+      scoreEl.classList.add('quiz-map-q-feedback-score--pop');
+    } else if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+    window.__quizMapCarryFeedbackT = setTimeout(() => {
+      window.__quizMapCarryFeedbackT = null;
+      clearQuizMapQuestionCarryFeedback();
+    }, QUIZ_MAP_CARRY_FEEDBACK_MS);
+  }
+
+  /** ค่าเริ่มต้นแผงคำถามบนแผนที่ (ตรงกับ server defaultCarryMapPanelTheme) — ใช้เมื่อยังไม่โหลดจาก API */
+  function defaultCarryMapPanelThemePlay() {
+    return {
+      panelBg: 'rgba(12, 14, 28, 0.88)',
+      panelBorder: 'rgba(255, 214, 102, 0.7)',
+      borderWidthPx: 2,
+      textColor: '#f1f5f9',
+      questionFontMinPx: 10,
+      questionFontMaxPx: 24,
+    };
+  }
+
+  /** ตรงกับ drawQuizCarryChoiceLabels — carryChoicePlaqueMapScale */
+  function quizCarryPlaqueMapScaleClampedPlay() {
+    const sc = Number(quizCarryPlaqueMapScale);
+    if (!Number.isFinite(sc)) return 1.25;
+    return Math.max(0.85, Math.min(2.5, sc));
+  }
+
+  /**
+   * ขนาดตัวอักษรแผงคำถาม DOM ให้เท่าป้ายคำตอบบนพื้น: Math.max(10, Math.min(24, tileSize*zoom*0.24*ps))
+   * แล้ว clamp ด้วย questionFontMinPx / questionFontMaxPx จากธีม (ถ้าต้องการใหญ่กว่าป้ายได้โดยยกเพดาน max)
+   */
+  function quizMapQuestionFontPxLikeCarryPlaques(th, zoomVal) {
+    const ts = tileSize * zoomVal;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const base = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    const fb = defaultCarryMapPanelThemePlay();
+    let mn = Number(th && th.questionFontMinPx);
+    let mx = Number(th && th.questionFontMaxPx);
+    if (!Number.isFinite(mn)) mn = fb.questionFontMinPx;
+    if (!Number.isFinite(mx)) mx = fb.questionFontMaxPx;
+    mn = Math.round(Math.max(8, Math.min(40, mn)));
+    mx = Math.round(Math.max(10, Math.min(72, mx)));
+    if (mx < mn) {
+      const s = mn;
+      mn = mx;
+      mx = s;
+    }
+    return Math.max(mn, Math.min(mx, base));
+  }
+
+  /**
+   * ลด px ทีละ 1 จนเนื้อหาไม่ล้นกล่อง (ไม่ใช้ scrollbar)
+   * zoom out กล่องเตี้ยมาก: อนุญาตต่ำกว่า questionFontMinPx ของธีมได้ถึง hardMin (≥6) ไม่ให้บรรทัดถูกตัด
+   * แผงใช้ justify-content:flex-start ใน CSS — ไม่จัดกึ่งกลางแนวตั้งแล้วโดน overflow ตัดบน-ล่าง
+   */
+  function fitQuizMapQuestionFontToPanel(panel, textEl, startPx, minPx) {
+    const cs = window.getComputedStyle(panel);
+    const padT = parseFloat(cs.paddingTop) || 0;
+    const padB = parseFloat(cs.paddingBottom) || 0;
+    const padL = parseFloat(cs.paddingLeft) || 0;
+    const padR = parseFloat(cs.paddingRight) || 0;
+    const availH = Math.max(12, panel.clientHeight - padT - padB);
+    const availW = Math.max(24, panel.clientWidth - padL - padR);
+    const themeMin = Math.max(8, Math.floor(Number(minPx) || 8));
+    const hardMin = Math.min(themeMin, Math.max(6, Math.floor(availH / 7)));
+    let px = Math.round(Math.min(80, Math.max(hardMin, Number(startPx) || hardMin)));
+    textEl.style.setProperty('line-height', '1.28', 'important');
+    textEl.style.setProperty('width', '100%', 'important');
+    textEl.style.setProperty('box-sizing', 'border-box', 'important');
+    textEl.style.removeProperty('max-height');
+    textEl.style.setProperty('overflow', 'hidden', 'important');
+    for (let i = 0; i < 96 && px > hardMin; i++) {
+      textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+      const sh = textEl.scrollHeight;
+      const sw = textEl.scrollWidth;
+      if (sh <= availH + 2 && sw <= availW + 2) break;
+      px -= 1;
+    }
+    textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+    textEl.style.setProperty('max-height', availH + 'px', 'important');
+  }
+
+  /** ธีมจาก quiz-settings / join API — ถ้า JSON ไม่มีฟอนต์ให้ใช้ค่าเริ่มต้น */
+  function parseCarryMapPanelThemeObject(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const fb = defaultCarryMapPanelThemePlay();
+    let qMin = Number(t.questionFontMinPx);
+    let qMax = Number(t.questionFontMaxPx);
+    if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+    if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+    qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+    qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+    if (qMax < qMin) {
+      const s = qMin;
+      qMin = qMax;
+      qMax = s;
+    }
+    return {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+      questionFontMinPx: qMin,
+      questionFontMaxPx: qMax,
+    };
+  }
+
+  /**
+   * ชั้นทับจาก carryMapPanelTheme ในไฟล์แมป — ฟอนต์ใส่เฉพาะเมื่อ JSON มี key จริง
+   * (กันธีมแมปมีแค่สีแล้วไปทับขนาดฟอนต์จาก Admin เป็นค่าเริ่ม 16/24)
+   */
+  function parseCarryMapPanelThemeMapOverlay(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const out = {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+    };
+    const hasMin = Object.prototype.hasOwnProperty.call(t, 'questionFontMinPx');
+    const hasMax = Object.prototype.hasOwnProperty.call(t, 'questionFontMaxPx');
+    if (hasMin || hasMax) {
+      const fb = defaultCarryMapPanelThemePlay();
+      let qMin = hasMin ? Number(t.questionFontMinPx) : fb.questionFontMinPx;
+      let qMax = hasMax ? Number(t.questionFontMaxPx) : fb.questionFontMaxPx;
+      if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+      if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+      qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+      qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+      if (qMax < qMin) {
+        const s = qMin;
+        qMin = qMax;
+        qMax = s;
+      }
+      out.questionFontMinPx = qMin;
+      out.questionFontMaxPx = qMax;
+    }
+    return out;
+  }
+
+  function setQuizCarryMapPanelThemeFromApi(s) {
+    quizCarryMapPanelTheme = null;
+    if (!s || typeof s !== 'object') return;
+    const parsed = parseCarryMapPanelThemeObject(s.carryMapPanelTheme);
+    if (!parsed) return;
+    quizCarryMapPanelTheme = parsed;
+  }
+
+  function defaultCarryChoicePlaqueThemePlay() {
+    return {
+      borderMode: 'neon',
+      fixedBorder: 'rgba(122, 200, 255, 0.9)',
+      fillBg: 'rgba(12, 10, 20, 0.88)',
+      textColor: 'rgba(248, 249, 255, 1)',
+      borderWidthPx: 2.5,
+      plaqueImageUrl: '',
+    };
+  }
+
+  function parseCarryChoicePlaqueThemeObject(raw) {
+    const d = defaultCarryChoicePlaqueThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const safeColor = (x, fb) => {
+      const t = String(x == null ? '' : x).trim().slice(0, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    const mode = String(raw.borderMode || '').toLowerCase() === 'fixed' ? 'fixed' : 'neon';
+    let bw = Number(raw.borderWidthPx);
+    if (!Number.isFinite(bw)) bw = d.borderWidthPx;
+    bw = Math.round(Math.max(0, Math.min(8, bw)) * 10) / 10;
+    return {
+      borderMode: mode,
+      fixedBorder: safeColor(raw.fixedBorder, d.fixedBorder),
+      fillBg: safeColor(raw.fillBg, d.fillBg),
+      textColor: safeColor(raw.textColor, d.textColor),
+      borderWidthPx: bw,
+      plaqueImageUrl: sanitizeQuizCarryImageUrlClient(raw.plaqueImageUrl),
+    };
+  }
+
+  function buildCarryChoicePlaqueThemesArrayFromApi(s) {
+    if (!s || typeof s !== 'object') return null;
+    if (Array.isArray(s.carryChoicePlaqueThemes) && s.carryChoicePlaqueThemes.length) {
+      const out = [];
+      for (let i = 0; i < QUIZ_CARRY_MAX_OPTION_SLOTS; i++) {
+        out.push(parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueThemes[i]));
+      }
+      return out;
+    }
+    if (s.carryChoicePlaqueTheme && typeof s.carryChoicePlaqueTheme === 'object') {
+      const one = parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueTheme);
+      return Array.from({ length: QUIZ_CARRY_MAX_OPTION_SLOTS }, () => ({ ...one }));
+    }
+    return null;
+  }
+
+  function getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex) {
+    const i = Math.max(0, Math.min(QUIZ_CARRY_MAX_OPTION_SLOTS - 1, choiceIndex | 0));
+    if (quizCarryChoicePlaqueThemes && quizCarryChoicePlaqueThemes[i]) {
+      return quizCarryChoicePlaqueThemes[i];
+    }
+    return defaultCarryChoicePlaqueThemePlay();
+  }
+
+  function setQuizCarryChoicePlaqueThemeFromApi(s) {
+    quizCarryChoicePlaqueThemes = buildCarryChoicePlaqueThemesArrayFromApi(s);
+  }
+
+  function sanitizeQuizCarryImageUrlClient(u) {
+    const s = String(u == null ? '' : u).trim().slice(0, 512);
+    if (!s || /[\s<>'"`]/.test(s)) return '';
+    if (s.startsWith('/')) {
+      if (!/^\/[\w\-./?#=&%+]+$/i.test(s)) return '';
+      return s;
+    }
+    const low = s.toLowerCase();
+    if (!low.startsWith('https://') && !low.startsWith('http://')) return '';
+    try {
+      const parsed = new URL(s);
+      if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') return '';
+      return s;
+    } catch (e) {
+      return '';
+    }
+  }
+
+  /** crossOrigin=anonymous กับ same-origin บางเซิร์ฟ/nginx ทำให้โหลดรูปล้ม — ใช้เฉพาะข้ามโดเมน */
+  function quizCarryApplyImageCrossOrigin(img, rawUrl) {
+    if (!img) return;
+    try {
+      img.removeAttribute('crossorigin');
+      const u = sanitizeQuizCarryImageUrlClient(rawUrl);
+      if (!u || u.startsWith('data:')) return;
+      let imgOrigin = '';
+      if (u.startsWith('http://') || u.startsWith('https://')) {
+        imgOrigin = new URL(u).origin;
+      } else if (u.startsWith('/')) {
+        imgOrigin = window.location.origin;
+      }
+      if (imgOrigin && imgOrigin !== window.location.origin) {
+        img.crossOrigin = 'anonymous';
+      }
+    } catch (e) { /* ignore */ }
+  }
+
+  function preloadQuizCarryChoiceImages(q) {
+    if (!q) return;
+    if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+      for (let i = 0; i < q.choiceImageUrls.length; i++) {
+        const raw = sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[i]);
+        if (!raw) continue;
+        if (quizCarryChoiceImageCache.has(raw)) continue;
+        const im = new Image();
+        quizCarryApplyImageCrossOrigin(im, raw);
+        im.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw, im);
+        try {
+          im.src = raw;
+        } catch (e) { /* ignore */ }
+      }
+    }
+    if (Array.isArray(q.choices)) {
+      for (let j = 0; j < q.choices.length; j++) {
+        const raw2 = getQuizCarryPlaqueImageUrlForIndex(q, j);
+        if (!raw2 || quizCarryChoiceImageCache.has(raw2)) continue;
+        const im2 = new Image();
+        quizCarryApplyImageCrossOrigin(im2, raw2);
+        im2.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw2, im2);
+        try {
+          im2.src = raw2;
+        } catch (e) { /* ignore */ }
+      }
+    }
+  }
+
+  function getQuizCarryChoiceImageCached(url) {
+    const u = sanitizeQuizCarryImageUrlClient(url);
+    if (!u) return null;
+    const im = quizCarryChoiceImageCache.get(u);
+    if (im && im.complete && im.naturalWidth > 0) return im;
+    return null;
+  }
+
+  function getQuizCarryChoiceImageUrlForIndex(q, idx) {
+    if (!q || !Array.isArray(q.choiceImageUrls)) return '';
+    const u = q.choiceImageUrls[idx];
+    return sanitizeQuizCarryImageUrlClient(u);
+  }
+
+  /** รูปป้าย: คำถามต่อช่องก่อน แล้วค่อยรูปจากธีมช่อง (carryChoicePlaqueThemes) */
+  function getQuizCarryPlaqueImageUrlForIndex(q, idx) {
+    const perQ = getQuizCarryChoiceImageUrlForIndex(q, idx);
+    if (perQ) return perQ;
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(idx);
+    const u = th && th.plaqueImageUrl ? sanitizeQuizCarryImageUrlClient(th.plaqueImageUrl) : '';
+    return u || '';
+  }
+
+  function defaultCarryEmbedCountdownThemePlay() {
+    return {
+      overlayBackdrop: 'rgba(8, 10, 20, 0.42)',
+      innerBg: 'rgba(12, 14, 28, 0.82)',
+      innerBorder: 'rgba(122, 162, 247, 0.45)',
+      innerBorderWpx: 1,
+      innerRadiusPx: 12,
+      digitColor: '#ffe066',
+      mapDigitCqmin: 78,
+      mapDigitCqh: 82,
+      mapDigitMaxPx: 200,
+      screenDigitVw: 28,
+      screenDigitMaxPx: 132,
+    };
+  }
+
+  function parseCarryEmbedCountdownThemeObject(raw) {
+    const d = defaultCarryEmbedCountdownThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const clampN = (v, lo, hi, def) => {
+      const n = Number(v);
+      if (!Number.isFinite(n)) return def;
+      return Math.max(lo, Math.min(hi, Math.round(n)));
+    };
+    const clipStr = (x, maxLen) => {
+      const t = String(x == null ? '' : x).trim().slice(0, maxLen);
+      return t || null;
+    };
+    const safeColor = (x, fb) => {
+      const t = clipStr(x, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    return {
+      overlayBackdrop: safeColor(raw.overlayBackdrop, d.overlayBackdrop),
+      innerBg: safeColor(raw.innerBg, d.innerBg),
+      innerBorder: safeColor(raw.innerBorder, d.innerBorder),
+      innerBorderWpx: clampN(raw.innerBorderWpx, 0, 12, d.innerBorderWpx),
+      innerRadiusPx: clampN(raw.innerRadiusPx, 0, 32, d.innerRadiusPx),
+      digitColor: safeColor(raw.digitColor, d.digitColor),
+      mapDigitCqmin: clampN(raw.mapDigitCqmin, 35, 100, d.mapDigitCqmin),
+      mapDigitCqh: clampN(raw.mapDigitCqh, 35, 100, d.mapDigitCqh),
+      mapDigitMaxPx: clampN(raw.mapDigitMaxPx, 48, 400, d.mapDigitMaxPx),
+      screenDigitVw: clampN(raw.screenDigitVw, 6, 44, d.screenDigitVw),
+      screenDigitMaxPx: clampN(raw.screenDigitMaxPx, 48, 220, d.screenDigitMaxPx),
+    };
+  }
+
+  function setQuizCarryEmbedCountdownThemeFromApi(s) {
+    quizCarryEmbedCountdownTheme = parseCarryEmbedCountdownThemeObject(s && s.carryEmbedCountdownTheme);
+    applyQuizCarryEmbedCountdownThemeToDom();
+  }
+
+  const CARRY_ECD_VAR_KEYS = [
+    '--carry-ecd-overlay',
+    '--carry-ecd-inner-bg',
+    '--carry-ecd-inner-border',
+    '--carry-ecd-inner-border-w',
+    '--carry-ecd-inner-radius',
+    '--carry-ecd-digit-color',
+    '--carry-ecd-map-digit-fs',
+    '--carry-ecd-screen-vw',
+    '--carry-ecd-screen-max',
+  ];
+
+  function clearQuizCarryEmbedCountdownThemeDomVars() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    if (!root) return;
+    CARRY_ECD_VAR_KEYS.forEach((k) => { try { root.style.removeProperty(k); } catch (e) { /* ignore */ } });
+  }
+
+  /** ใส่ CSS variables บน #quiz-carry-embed-countdown — อ่านจาก quizCarryEmbedCountdownTheme */
+  function applyQuizCarryEmbedCountdownThemeToDom() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (!root) return;
+    clearQuizCarryEmbedCountdownThemeDomVars();
+    const th = quizCarryEmbedCountdownTheme || defaultCarryEmbedCountdownThemePlay();
+    root.style.setProperty('--carry-ecd-overlay', th.overlayBackdrop);
+    root.style.setProperty('--carry-ecd-inner-bg', th.innerBg);
+    root.style.setProperty('--carry-ecd-inner-border', th.innerBorder);
+    root.style.setProperty('--carry-ecd-inner-border-w', `${Math.max(0, Math.min(12, Math.round(Number(th.innerBorderWpx) || 1)))}px`);
+    root.style.setProperty('--carry-ecd-inner-radius', `${Math.max(0, Math.min(32, Math.round(Number(th.innerRadiusPx) || 12)))}px`);
+    root.style.setProperty('--carry-ecd-digit-color', th.digitColor);
+    const cqmin = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqmin) || 78)));
+    const cqh = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqh) || 82)));
+    const mpx = Math.max(48, Math.min(400, Math.round(Number(th.mapDigitMaxPx) || 200)));
+    root.style.setProperty('--carry-ecd-map-digit-fs', `clamp(14px, min(${cqmin}cqmin, ${cqh}cqh), ${mpx}px)`);
+    const vw = Math.max(6, Math.min(44, Math.round(Number(th.screenDigitVw) || 28)));
+    const smx = Math.max(48, Math.min(220, Math.round(Number(th.screenDigitMaxPx) || 132)));
+    root.style.setProperty('--carry-ecd-screen-vw', `${vw}vw`);
+    root.style.setProperty('--carry-ecd-screen-max', `${smx}px`);
+    if (numEl) {
+      numEl.style.textShadow = '0 0 0.45em currentColor, 0 4px 14px rgba(0,0,0,0.55)';
+    }
+  }
+
+  /** default ← quiz-settings/API ← แมป (สีจากแมปทับได้; ฟอนต์จากแมปเฉพาะเมื่อแมประบุ key) */
+  function getEffectiveCarryMapPanelThemeForApply() {
+    const d = defaultCarryMapPanelThemePlay();
+    const api = quizCarryMapPanelTheme != null && typeof quizCarryMapPanelTheme === 'object' ? quizCarryMapPanelTheme : null;
+    let merged = api ? { ...d, ...api } : { ...d };
+    if (mapData && mapData.carryMapPanelTheme != null) {
+      const mp = parseCarryMapPanelThemeMapOverlay(mapData.carryMapPanelTheme);
+      if (mp) merged = { ...merged, ...mp };
+    }
+    return merged;
+  }
+
+  function applyQuizCarryMapPanelThemeIfNeeded(panel, textEl) {
+    if (!panel || !textEl) return;
+    if (!isQuizCarry()) {
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const th = getEffectiveCarryMapPanelThemeForApply();
+    clearQuizMapPanelThemeInline(panel, textEl);
+    const bgStr = th.panelBg != null ? String(th.panelBg).trim() : '';
+    const brStr = th.panelBorder != null ? String(th.panelBorder).trim() : '';
+    const txStr = th.textColor != null ? String(th.textColor).trim() : '';
+    const wRaw = Number(th.borderWidthPx);
+    const w = Number.isFinite(wRaw) ? Math.max(0, Math.min(12, Math.round(wRaw))) : 0;
+    const bgUse = bgStr || 'transparent';
+    const brUse = brStr || 'transparent';
+    const txUse = txStr || '#f1f5f9';
+    panel.style.setProperty('--qmap-bg', bgUse);
+    panel.style.setProperty('--qmap-border', brUse);
+    panel.style.setProperty('--qmap-border-w', String(w) + 'px');
+    panel.style.setProperty('--qmap-shadow', 'none');
+    textEl.style.setProperty('--qmap-text', txUse);
+    textEl.style.setProperty('--qmap-text-shadow', 'none');
+    /* โหลด play.html แบบแคชเก่า (ไม่มี var) ยังต้องทับได้ — ใช้ !important คู่กับตัวแปร */
+    panel.style.setProperty('background', bgUse, 'important');
+    panel.style.setProperty('border', String(w) + 'px solid ' + brUse, 'important');
+    panel.style.setProperty('box-shadow', 'none', 'important');
+    textEl.style.setProperty('color', txUse, 'important');
+    textEl.style.setProperty('text-shadow', 'none', 'important');
+  }
+
+  function syncPlayQuizMapPanel() {
+    const panel = document.getElementById('quiz-map-question-panel');
+    const textEl = document.getElementById('quiz-map-question-text');
+    if (!panel || !textEl || !mapData) return;
+    /* เอดิเตอร์ embed: ซ่อนแผงทองเฉพาะโหมด quiz (ทับกลาง) — quiz_carry ต้องโชว์ตามโซนที่วาดบนแผนที่ */
+    if (previewMode && editorEmbedReturn && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (isQuizBattle()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (!isQuiz() && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      return;
+    }
+    const bounds = isQuiz()
+      ? getQuizQuestionAreaTileBounds(mapData)
+      : (getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData));
+    const text = (playQuizText || '').trim();
+    if (!bounds || !text) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    textEl.textContent = text;
+    panel.style.left = Math.round(left) + 'px';
+    panel.style.top = Math.round(top) + 'px';
+    panel.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    panel.style.height = Math.round(Math.max(40, hPx)) + 'px';
+    panel.classList.remove('is-hidden');
+    panel.setAttribute('aria-hidden', 'false');
+    applyQuizCarryMapPanelThemeIfNeeded(panel, textEl);
+    const thFont = getEffectiveCarryMapPanelThemeForApply();
+    const startFontPx = quizMapQuestionFontPxLikeCarryPlaques(thFont, zoom);
+    const mnFont = Math.max(8, Math.round(Number(thFont.questionFontMinPx) || 10));
+    fitQuizMapQuestionFontToPanel(panel, textEl, startFontPx, mnFont);
+  }
+
+  /** โซนเดียวกับแผงคำถามบนแผนที่ — ยึด timeup ให้ตรงกล่อง #quiz-map-question-panel (ห้ามคำนวณซ้ำแล้วคลาด) */
+  function syncQuizCarryTimeupDeskLayerPosition() {
+    const layer = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!layer || layer.classList.contains('is-hidden')) return;
+    const anchor = layer.querySelector('.qc-timeup-desk-anchor')
+      || layer.querySelector('.qc-timeup-desk-inner')
+      || (() => {
+        const img = document.getElementById('quiz-carry-timeup-txt-img');
+        return img && img.parentElement && img.parentElement !== layer ? img.parentElement : null;
+      })();
+    if (!anchor || !canvas) return;
+    const clearToFullStack = () => {
+      anchor.style.left = '0';
+      anchor.style.top = '0';
+      anchor.style.width = '100%';
+      anchor.style.height = '100%';
+    };
+    const stack = document.getElementById('play-canvas-stack');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (stack && panel && !panel.classList.contains('is-hidden')) {
+      try {
+        const sr = stack.getBoundingClientRect();
+        const pr = panel.getBoundingClientRect();
+        const rw = pr.width;
+        const rh = pr.height;
+        if (rw >= 8 && rh >= 8 && sr.width > 0 && sr.height > 0) {
+          anchor.style.left = Math.round(pr.left - sr.left) + 'px';
+          anchor.style.top = Math.round(pr.top - sr.top) + 'px';
+          anchor.style.width = Math.round(rw) + 'px';
+          anchor.style.height = Math.round(rh) + 'px';
+          return;
+        }
+      } catch (e) { /* fallback ด้านล่าง */ }
+    }
+    const pl = panel && panel.style && String(panel.style.left || '').trim();
+    const pt = panel && panel.style && String(panel.style.top || '').trim();
+    const pw = panel && panel.style && String(panel.style.width || '').trim();
+    const ph = panel && panel.style && String(panel.style.height || '').trim();
+    if (pl && pt && pw && ph) {
+      anchor.style.left = pl;
+      anchor.style.top = pt;
+      anchor.style.width = pw;
+      anchor.style.height = ph;
+      return;
+    }
+    if (!mapData || mapData.gameType !== 'quiz_carry') {
+      clearToFullStack();
+      return;
+    }
+    const bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+    if (!bounds) {
+      clearToFullStack();
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    anchor.style.left = Math.round(left) + 'px';
+    anchor.style.top = Math.round(top) + 'px';
+    anchor.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    anchor.style.height = Math.round(Math.max(40, hPx)) + 'px';
+  }
+
+  function carryEmbedCountdownAnchorResolved() {
+    if (!mapData || !isQuizCarry()) return 'screen';
+    const v = mapData.carryEmbedCountdownAnchor;
+    if (v === 'grid' || v === 'map') return v;
+    return 'screen';
+  }
+
+  function resetQuizCarryEmbedCountdownLayoutDom() {
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    if (ov) ov.classList.remove('quiz-carry-embed-countdown--map-anchor');
+    if (inner) {
+      inner.classList.remove('quiz-carry-embed-countdown-inner--map-rect');
+      inner.style.position = '';
+      inner.style.left = '';
+      inner.style.top = '';
+      inner.style.width = '';
+      inner.style.height = '';
+      inner.style.transform = '';
+      inner.style.maxWidth = '';
+      inner.style.boxSizing = '';
+      inner.style.display = '';
+      inner.style.margin = '';
+    }
+  }
+
+  /** พรีวิว embed: วางกล่อง 3–2–1 กลางจอ / ชิดโซนทองหรือโซนกลาง / ชิดกริด carryEmbedCountdownArea — ตาม carryEmbedCountdownAnchor */
+  function syncQuizCarryEmbedCountdownLayout() {
+    if (!previewMode || !editorEmbedReturn || !mapData || !isQuizCarry()) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    const canvasEl = document.getElementById('game-canvas');
+    if (!ov || !inner || !canvasEl) return;
+    if (ov.classList.contains('is-hidden')) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const anchor = carryEmbedCountdownAnchorResolved();
+    if (anchor === 'screen') {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    let bounds = null;
+    if (anchor === 'grid') {
+      bounds = getTileBoundsForOnesGrid(mapData.carryEmbedCountdownArea);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    } else {
+      bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const l = (bounds.minX * tileSize - camX) * zoom + canvasEl.width / 2;
+    const t = (bounds.minY * tileSize - camY) * zoom + canvasEl.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    const r = canvasEl.getBoundingClientRect();
+    const sl = r.left + l;
+    const st = r.top + t;
+    ov.classList.add('quiz-carry-embed-countdown--map-anchor');
+    inner.classList.add('quiz-carry-embed-countdown-inner--map-rect');
+    inner.style.position = 'fixed';
+    inner.style.left = Math.round(sl) + 'px';
+    inner.style.top = Math.round(st) + 'px';
+    inner.style.width = Math.round(Math.max(100, wPx)) + 'px';
+    inner.style.height = Math.round(Math.max(72, hPx)) + 'px';
+    inner.style.transform = 'none';
+    inner.style.boxSizing = 'border-box';
+    inner.style.display = 'flex';
+    inner.style.flexDirection = 'column';
+    inner.style.alignItems = 'center';
+    inner.style.justifyContent = 'center';
+    inner.style.margin = '0';
+    inner.style.maxWidth = 'none';
+  }
+
+  /** quiz_carry + embed: คำถามไปที่แผงทองบนแผนที่ / ใน overlay นับถอยหลัง — ไม่ใช้แถบบน */
+  function syncQuizCarryEmbedQuestionStrip() {
+    const wrap = document.getElementById('quiz-carry-embed-q-strip');
+    const p = document.getElementById('quiz-carry-embed-q-strip-text');
+    if (!wrap || !p) return;
+    wrap.classList.remove('quiz-carry-embed-q-strip--countdown');
+    wrap.classList.add('is-hidden');
+    wrap.setAttribute('aria-hidden', 'true');
+  }
+
+  function updatePlayQuizTimerDisplay() {
+    const el = document.getElementById('quiz-game-timer');
+    if (!el) return;
+    if (!playQuizPhaseEndsAt) {
+      el.textContent = '';
+      return;
+    }
+    const s = Math.max(0, Math.ceil((playQuizPhaseEndsAt - Date.now()) / 1000));
+    el.textContent = s + ' วินาที';
+  }
+
+  function clampPreviewMs(n, def, minV, maxV) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(minV, Math.min(maxV, Math.floor(v)));
+  }
+
+  function clampCarrySessionLen(n, def) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(0, Math.min(500, Math.floor(v)));
+  }
+
+  function buildQuizPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    return md.quizQuestions
+      .filter((q) => q && String(q.text || '').trim())
+      .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+  }
+
+  function pickRandomQuizFromPool(pool) {
+    if (!pool || !pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function clearPreviewBotAnswerPaths() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function resetPreviewBotsQuizState() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.quizCannotTrue = false;
+      o.quizCannotFalse = false;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function applyPreviewReadPhase(q, poolLen) {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'read';
+    playQuizPhaseLocal = 'read';
+    previewQuizCurrent = q;
+    playQuizText = q.text;
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.readMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] อ่านคำถาม · สุ่มจากชุด ' + poolLen + ' ข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'โซนทองบนแผนที่ = ข้อความคำถาม · ฟ้า = จริง · ชมพู = เท็จ';
+  }
+
+  function applyPreviewAnswerPhase() {
+    previewQuizStep = 'answer';
+    playQuizPhaseLocal = 'answer';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.answerMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] เดินไปโซน ถูก / ผิด';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg && previewQuizCurrent) {
+      leg.textContent = previewQuizCurrent.answerTrue
+        ? 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «จริง» — โซนสีฟ้า'
+        : 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «เท็จ» — โซนสีชมพู';
+    }
+    previewBotsPrepareAnswerRound();
+  }
+
+  function applyPreviewBetweenPhase() {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'between';
+    playQuizPhaseLocal = null;
+    playQuizText = 'ข้อถัดไปกำลังจะมา…';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.betweenMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] พักระหว่างข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'รอสักครู่แล้วจะสุ่มคำถามใหม่จากชุดเดิม';
+  }
+
+  function quizCellOnPlay(grid, x, y) {
+    return !!(grid && grid[y] && grid[y][x] === 1);
+  }
+
+  function spawnTileWalkablePlay(md, x, y) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    if (x < 0 || x >= w || y < 0 || y >= h) return false;
+    const row = md.objects && md.objects[y];
+    if (row && row[x] === 1) return false;
+    return true;
+  }
+
+  /** เหมือน server pickRandomSpawnFromMap — สุ่มด้วย crypto.getRandomValues */
+  function pickRandomSpawnFromMapPlay(md) {
+    const fallback = md.spawn || { x: 1, y: 1 };
+    const fx = Number.isFinite(Number(fallback.x)) ? Number(fallback.x) : 1;
+    const fy = Number.isFinite(Number(fallback.y)) ? Number(fallback.y) : 1;
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return { x: fx, y: fy };
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return { x: fx, y: fy };
+    const u = new Uint32Array(1);
+    (typeof crypto !== 'undefined' && crypto.getRandomValues)
+      ? crypto.getRandomValues(u)
+      : (u[0] = (Math.floor(Math.random() * 0xffffffff) >>> 0));
+    const pick = pool[u[0] % pool.length];
+    return { x: pick.x, y: pick.y };
+  }
+
+  function parseLobbyPlayerSpawnsFromMapPlay(md) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const out = [null, null, null, null, null, null];
+    const raw = md && md.lobbyPlayerSpawns;
+    if (!Array.isArray(raw)) return out;
+    for (let i = 0; i < 6 && i < raw.length; i++) {
+      const cell = raw[i];
+      if (!cell || typeof cell !== 'object') continue;
+      const x = Math.floor(Number(cell.x));
+      const y = Math.floor(Number(cell.y));
+      if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
+      if (x < 0 || x >= w || y < 0 || y >= h) continue;
+      out[i] = { x, y };
+    }
+    return out;
+  }
+
+  /** สอดคล้องกับ server pickSpawnForJoin — ใช้พรีวิวบอท / ทดสอบ */
+  function pickSpawnForJoinPlay(md, joinOrderIndex) {
+    if (!md) return { x: 1, y: 1 };
+    const mode = md.lobbySpawnMode;
+    const ord = joinOrderIndex | 0;
+    if (mode === 'slots6' && ord >= 6) return pickRandomSpawnFromMapPlay(md);
+    const j = Math.min(Math.max(0, ord), 5);
+    if (mode === 'fixed' && md.spawn) {
+      const fx = Number.isFinite(Number(md.spawn.x)) ? Math.floor(Number(md.spawn.x)) : 1;
+      const fy = Number.isFinite(Number(md.spawn.y)) ? Math.floor(Number(md.spawn.y)) : 1;
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const x = Math.max(0, Math.min(w - 1, fx));
+      const y = Math.max(0, Math.min(h - 1, fy));
+      if (spawnTileWalkablePlay(md, x, y)) return { x, y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    if (mode === 'slots6') {
+      const slots = parseLobbyPlayerSpawnsFromMapPlay(md);
+      const pick = slots[j];
+      if (pick && spawnTileWalkablePlay(md, pick.x, pick.y)) return { x: pick.x, y: pick.y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    return pickRandomSpawnFromMapPlay(md);
+  }
+
+  const GAUNTLET_PREVIEW_MAX = 6;
+  function gauntletSpawnYsPlay(md, playerCount) {
+    const h = md.height || 15;
+    const lo = 1;
+    const hi = Math.max(lo, h - 2);
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    if (hi <= lo) return Array.from({ length: n }, () => lo);
+    const ys = [];
+    for (let i = 0; i < n; i++) {
+      ys.push(Math.round(lo + (i * (hi - lo)) / Math.max(1, n - 1)));
+    }
+    return ys;
+  }
+  function collectGauntletSpawnSlotsFromSpawnAreaPlay(md) {
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return [];
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const slots = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) slots.push({ x, y });
+      }
+    }
+    slots.sort((a, b) => a.y - b.y || a.x - b.x);
+    return slots;
+  }
+  function collectGauntletSpawnSlotsPlay(md) {
+    const explicit = md.gauntletPlayerSpawns;
+    if (Array.isArray(explicit) && explicit.length > 0) {
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const slots = [];
+      for (const raw of explicit) {
+        if (slots.length >= GAUNTLET_PREVIEW_MAX) break;
+        const x = Math.floor(Number(raw && raw.x));
+        const y = Math.floor(Number(raw && raw.y));
+        if (!Number.isFinite(x) || !Number.isFinite(y) || x < 0 || x >= w || y < 0 || y >= h) continue;
+        if (!spawnTileWalkablePlay(md, x, y)) continue;
+        slots.push({ x, y });
+      }
+      if (slots.length > 0) return slots;
+    }
+    return collectGauntletSpawnSlotsFromSpawnAreaPlay(md);
+  }
+  function gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotXFallback) {
+    const w = md.width || 20;
+    if (spawnTileWalkablePlay(md, spawnColX, y)) return spawnColX;
+    if (slotXFallback != null && spawnTileWalkablePlay(md, slotXFallback, y)) return slotXFallback;
+    for (let d = 0; d < w; d++) {
+      if (spawnColX + d < w && spawnTileWalkablePlay(md, spawnColX + d, y)) return spawnColX + d;
+      if (spawnColX - d >= 0 && spawnTileWalkablePlay(md, spawnColX - d, y)) return spawnColX - d;
+    }
+    return Math.max(0, Math.min(w - 1, spawnColX));
+  }
+  function gauntletSpawnPositionsPlay(md, playerCount) {
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    const slots = collectGauntletSpawnSlotsPlay(md);
+    const fallbackYs = gauntletSpawnYsPlay(md, n);
+    const spawnColX = slots.length ? Math.min(...slots.map((s) => s.x)) : 1;
+    const out = [];
+    for (let i = 0; i < n; i++) {
+      const y = i < slots.length
+        ? slots[i].y
+        : (fallbackYs[i] != null ? fallbackYs[i] : fallbackYs[fallbackYs.length - 1]);
+      const slotX = i < slots.length ? slots[i].x : null;
+      const x = gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotX);
+      out.push({ x, y });
+    }
+    return out;
+  }
+  /**
+   * โหมดทดสอบพรมแดง: จัดตำแหน่งเกิดให้ตรง server (spawnArea หรือกระจาย y)
+   * @param {boolean} [onlyBots=false] ถ้า true = จัดแค่บอท (หลัง game-start; ไม่ทับ me/คนจริงจาก peersSnap)
+   */
+  function applyGauntletPreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'gauntlet') return;
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    const humanCount = 1 + realIds.length;
+    const total = Math.min(GAUNTLET_PREVIEW_MAX, humanCount + botIds.length);
+    const pos = gauntletSpawnPositionsPlay(mapData, total);
+    if (onlyBots) {
+      let idx = humanCount;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || idx >= pos.length) return;
+        o.x = pos[idx].x;
+        o.tx = pos[idx].x;
+        o.y = pos[idx].y;
+        o.ty = pos[idx].y;
+        idx++;
+      });
+      return;
+    }
+    let idx = 0;
+    if (idx < pos.length) {
+      me.x = pos[idx].x;
+      me.y = pos[idx].y;
+      me.tx = me.x;
+      me.ty = me.y;
+      idx++;
+    }
+    realIds.forEach((rid) => {
+      const o = others.get(rid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+    botIds.forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+  }
+
+  function isPreviewBotId(id) {
+    return typeof id === 'string' && id.indexOf(PREVIEW_BOT_PREFIX) === 0;
+  }
+
+  function countPlayHumans() {
+    let n = 1;
+    others.forEach((_, id) => { if (!isPreviewBotId(id)) n++; });
+    return n;
+  }
+
+  function rebalancePreviewBots() {
+    if (!playBotsEnabled() || !mapData) return;
+    if (isDetectiveMinigamePlay() && isQuizCarry()) {
+      /* บอทคดีสืบสวน — ใช้ stepQuizCarryPreviewBots */
+    }
+    const human = countPlayHumans();
+    const wantBots = Math.max(0, playBotTargetHeadcount() - human);
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      if (o.botTier == null) {
+        const tierRoll = Math.random();
+        o.botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      }
+      if (o.quizCannotTrue == null) o.quizCannotTrue = false;
+      if (o.quizCannotFalse == null) o.quizCannotFalse = false;
+      if (!Array.isArray(o.botPath)) o.botPath = [];
+      if (o.botAnswerWander == null) o.botAnswerWander = false;
+      if (o.gauntletJumpTicks == null) o.gauntletJumpTicks = 0;
+      if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+      if (o.gauntletScore == null) {
+        o.gauntletScore = (mapData && mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) ? 100 : 0;
+      }
+      if (o.gauntletEliminated == null) o.gauntletEliminated = false;
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+        o.botWanderDx = wd[0];
+        o.botWanderDy = wd[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') {
+        o.botWanderNextTurn = Date.now() + 400 + Math.floor(Math.random() * 900);
+      }
+    });
+    let botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length > wantBots) {
+      const drop = botIds.pop();
+      if (drop) others.delete(drop);
+    }
+    botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length < wantBots) {
+      const id = PREVIEW_BOT_PREFIX + (++previewBotSeq);
+      const joinIdx = countPlayHumans() + botIds.length;
+      const sp = pickSpawnForJoinPlay(mapData, joinIdx);
+      const jx = (Math.random() - 0.5) * 0.4;
+      const jy = (Math.random() - 0.5) * 0.4;
+      let x = sp.x + 0.5 + jx;
+      let y = sp.y + 0.5 + jy;
+      if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+        const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(x, y);
+        x = pathSnap.x;
+        y = pathSnap.y;
+      }
+      const tierRoll = Math.random();
+      const botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+      const crownStart = mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay();
+        others.set(id, {
+        x, y, tx: x, ty: y,
+        direction: ['down', 'up', 'left', 'right'][Math.floor(Math.random() * 4)],
+        nickname: 'บอท',
+        characterId: getPlayCharacterId(),
+        playTint: playTintFromPeerId(id),
+        botTier,
+        gauntletJumpTicks: 0,
+        gauntletJumpVis: 0,
+        gauntletScore: crownStart ? 100 : 0,
+        gauntletEliminated: false,
+        quizCannotTrue: false,
+        quizCannotFalse: false,
+        quizCarryHeld: null,
+        botPath: [],
+        botAnswerWander: false,
+        botWanderDx: wd[0],
+        botWanderDy: wd[1],
+        botWanderNextTurn: Date.now() + 400 + Math.floor(Math.random() * 1000),
+        jumpSurviveEliminated: false,
+        spaceShooterScore: 0,
+        balloonBossScore: 0,
+        balloonBossBalloons: 5,
+        balloonBossEliminated: false,
+        botQuizCarryPathfindAfter: performance.now() + previewBotSeq * 75 + Math.floor(Math.random() * 160),
+      });
+      botIds.push(id);
+    }
+    let k = 0;
+    [...others.keys()].filter(isPreviewBotId).sort().forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      const tag = o.botTier === 'sharp' ? '(ฉลาด)' : o.botTier === 'weak' ? '(พลาดบ่อย)' : '(กลาง)';
+      o.nickname = 'บอท ' + (++k) + ' ' + tag;
+    });
+    if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+      [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+        const o = others.get(bid);
+        if (!o) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      const t0 = performance.now();
+      [...others.keys()].filter(isPreviewBotId).forEach((bid, idx) => {
+        const o = others.get(bid);
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = t0 + idx * 90 + Math.floor(Math.random() * 140);
+      });
+    }
+    if (mapData.gameType === 'gauntlet') {
+      applyGauntletPreviewSpawnLayout(false);
+      emitGauntletPreviewRowsToServer();
+    }
+    if (mapData.gameType === 'stack') {
+      applyStackPreviewSpawnLayout();
+      rebuildStackPreviewTurnOrder();
+    }
+    if (mapData.gameType === 'jump_survive') {
+      applyJumpSurvivePreviewSpawnLayout(false);
+    }
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (quizCarryPregameActive && mapData && mapData.gameType === 'quiz_carry') updateQuizCarryPregameHud();
+  }
+
+  function pickRandomWalkableCellInAnswerGrid(grid, o) {
+    if (!grid || !mapData) return null;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] !== 1) continue;
+        if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, NaN, NaN, o)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  /** ช่วงตอบ: บอทสุ่มเดินไปโซนถูก/ผิด/เดินมั่ว ตามระดับ (ฉลาด/กลาง/พลาดบ่อย) */
+  function previewBotsPrepareAnswerRound() {
+    if (!previewFillBots || !mapData || !isQuiz() || !previewQuizCurrent) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+      const tier = o.botTier || 'avg';
+      let pCorrect = 0.52;
+      if (tier === 'sharp') pCorrect = 0.84;
+      else if (tier === 'weak') pCorrect = 0.22;
+      if (Math.random() < 0.14) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const wantsCorrect = Math.random() < pCorrect;
+      const targetTrue = wantsCorrect ? correctTrue : !correctTrue;
+      const zoneGrid = targetTrue ? qt : qf;
+      const dest = pickRandomWalkableCellInAnswerGrid(zoneGrid, o);
+      if (!dest) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+      if (!path || path.length <= 1) {
+        o.botAnswerWander = true;
+        return;
+      }
+      o.botPath = path.slice(1);
+    });
+  }
+
+  /** คัดลอกตรรกะจาก server — ดีดออกนอกโซนจริง/เท็จ (โหมดทดสอบ preview บน play.html) */
+  function findNearestOutsideQuizAnswerZonesPlay(md, sx, sy) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const tGrid = md.quizTrueArea || [];
+    const fGrid = md.quizFalseArea || [];
+    const inAnswer = (x, y) => quizCellOnPlay(tGrid, x, y) || quizCellOnPlay(fGrid, x, y);
+    const walkable = (x, y) => {
+      if (x < 0 || x >= w || y < 0 || y >= h) return false;
+      const row = md.objects && md.objects[y];
+      return row && row[x] !== 1;
+    };
+    const fx = Math.floor(Number(sx));
+    const fy = Math.floor(Number(sy));
+    if (!walkable(fx, fy)) {
+      const sp = md.spawn || { x: 1, y: 1 };
+      return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+    }
+    if (!inAnswer(fx, fy)) return { x: sx, y: sy };
+    const q = [[fx, fy]];
+    const seen = new Set([`${fx},${fy}`]);
+    const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+    while (q.length) {
+      const [cx, cy] = q.shift();
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = cx + dirs[di][0];
+        const ny = cy + dirs[di][1];
+        const k = `${nx},${ny}`;
+        if (seen.has(k)) continue;
+        if (!walkable(nx, ny)) continue;
+        seen.add(k);
+        if (!inAnswer(nx, ny)) {
+          return { x: nx + 0.5, y: ny + 0.5 };
+        }
+        q.push([nx, ny]);
+      }
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+  }
+
+  function quizResolveChoiceFromStanding(ox, oy, correctTrue) {
+    const tx = Math.floor(ox);
+    const ty = Math.floor(oy);
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    const inT = quizCellOnPlay(qt, tx, ty);
+    const inF = quizCellOnPlay(qf, tx, ty);
+    let choice = null;
+    if (inT && !inF) choice = true;
+    else if (inF && !inT) choice = false;
+    else if (inT && inF) choice = true;
+    const right = choice !== null && choice === correctTrue;
+    return { choice, right };
+  }
+
+  /** เฉลยรอบทดสอบบนเครื่อง — ให้พฤติกรรมใกล้เคียง server (ผิด = ล็อกโซน + ดีดออก) */
+  function resolvePreviewQuizRound() {
+    if (!previewMode || !mapData || !isQuiz() || !previewQuizCurrent || myId == null) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const results = [];
+    const mine = quizResolveChoiceFromStanding(me.x, me.y, correctTrue);
+    let right = mine.right;
+    let choice = mine.choice;
+    if (mine.right) {
+      playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+    } else {
+      playQuizPlayerLocal.cannotTrue = true;
+      playQuizPlayerLocal.cannotFalse = true;
+      const sp = pickRandomSpawnFromMapPlay(mapData);
+      const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+      me.x = pos.x;
+      me.y = pos.y;
+      socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+    }
+    results.push({
+      id: myId,
+      right,
+      choice,
+      score: playLiveQuizScores[myId] != null ? playLiveQuizScores[myId] : 0,
+    });
+    if (previewFillBots) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const br = quizResolveChoiceFromStanding(o.x, o.y, correctTrue);
+        o.botPath = [];
+        o.botAnswerWander = false;
+        if (br.right) {
+          playLiveQuizScores[id] = (playLiveQuizScores[id] || 0) + 1;
+        } else {
+          o.quizCannotTrue = true;
+          o.quizCannotFalse = true;
+          const sp = pickRandomSpawnFromMapPlay(mapData);
+          const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+          o.x = pos.x + (Math.random() - 0.5) * 0.35;
+          o.y = pos.y + (Math.random() - 0.5) * 0.35;
+        }
+        results.push({
+          id,
+          right: br.right,
+          choice: br.choice,
+          score: playLiveQuizScores[id] != null ? playLiveQuizScores[id] : 0,
+        });
+      });
+    }
+    const r = { results, scores: { ...playLiveQuizScores } };
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    showPlayQuizFeedback(r);
+  }
+
+  function advancePreviewQuizIfDue() {
+    if (!previewMode || !isQuiz() || !playQuizPhaseEndsAt || Date.now() < playQuizPhaseEndsAt) return;
+    const pool = previewQuizPool;
+    if (!pool || !pool.length) return;
+    if (previewQuizStep === 'read') {
+      applyPreviewAnswerPhase();
+      return;
+    }
+    if (previewQuizStep === 'answer') {
+      resolvePreviewQuizRound();
+      applyPreviewBetweenPhase();
+      return;
+    }
+    if (previewQuizStep === 'between') {
+      const q = pickRandomQuizFromPool(pool);
+      if (q) applyPreviewReadPhase(q, pool.length);
+    }
+  }
+
+  async function loadPreviewQuizAndStart() {
+    resetPreviewBotsQuizState();
+    let settings = null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) settings = await r.json();
+    } catch (e) { /* use map fallback */ }
+    let pool = [];
+    if (settings && Array.isArray(settings.questions) && settings.questions.length) {
+      pool = settings.questions
+        .filter((q) => q && String(q.text || '').trim())
+        .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+    }
+    if (!pool.length && mapData) pool = buildQuizPoolFromMap(mapData);
+    previewQuizPool = pool;
+    const dRead = 10000;
+    const dAns = 5000;
+    const dBet = 3500;
+    previewQuizTiming = {
+      readMs: clampPreviewMs(settings && settings.readMs, dRead, 1000, 300000),
+      answerMs: clampPreviewMs(settings && settings.answerMs, dAns, 1000, 300000),
+      betweenMs: clampPreviewMs(settings && settings.betweenMs, dBet, 0, 300000),
+    };
+    previewQuizCurrent = null;
+    if (!pool.length) {
+      playQuizPhaseLocal = 'read';
+      previewQuizStep = 'read';
+      playQuizText = 'ยังไม่มีคำถามในชุด — ตั้งคำถามใน Admin → คำถามเกม หรือในแมป (quizQuestions)';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] ไม่มีคำถามในระบบ';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      const leg = document.getElementById('quiz-play-legend');
+      if (leg) leg.textContent = 'โซนสีบนแผนที่ยังใช้ดูเลย์เอาต์ได้ตามปกติ';
+      initPlayLiveQuizScoresZeros();
+      startPlayQuizTimer();
+      return;
+    }
+    const q = pickRandomQuizFromPool(pool);
+    if (q) applyPreviewReadPhase(q, pool.length);
+    initPlayLiveQuizScoresZeros();
+    startPlayQuizTimer();
+  }
+
+  function startPlayQuizTimer() {
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(() => {
+      updatePlayQuizTimerDisplay();
+      advancePreviewQuizIfDue();
+    }, 200);
+    updatePlayQuizTimerDisplay();
+  }
+
+  function teardownPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    const mapQText = document.getElementById('quiz-map-question-text');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, mapQText);
+    }
+    playQuizPhaseLocal = null;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    previewQuizPool = [];
+    previewQuizCurrent = null;
+    previewQuizStep = 'read';
+    playLiveQuizScores = {};
+    playPath = [];
+    hidePlayQuizHud();
+    quizCarryJoinSettingsSnap = null;
+    quizCarryMapPanelTheme = null;
+    quizCarryChoicePlaqueThemes = null;
+    resetQuizCarryPlayState();
+    resetQuizBattlePlayState();
+    const grabBtnTeardown = document.getElementById('quiz-carry-grab-btn');
+    if (grabBtnTeardown) {
+      grabBtnTeardown.classList.add('is-hidden');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--active');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--place');
+      grabBtnTeardown.style.pointerEvents = '';
+      const im = grabBtnTeardown.querySelector('img');
+      if (im) im.src = '/Game/img/quiz-carry/btn-grab.png';
+    }
+  }
+
+  function setupPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    const leg = document.getElementById('quiz-play-legend');
+    if (previewMode) {
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] กำลังโหลดคำถาม…';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'ดึงชุดคำถามจาก /api/quiz-settings (หรือจากแมป)…';
+      if (leg) leg.textContent = '';
+      loadPreviewQuizAndStart();
+    } else {
+      playQuizPhaseLocal = null;
+      playQuizText = 'รอคำถามจากโฮสต์…';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'แมพตอบคำถาม';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'เข้าร่วมห้องแล้ว — เมื่อโฮสต์เริ่มเกม ข้อความและเวลาจะอัปเดตที่นี่ (เล่นจริงแนะนำผ่าน room-lobby)';
+      if (leg) leg.textContent = 'โซนสีบนแผนที่คือจุดตอบเหมือนใน Lobby';
+      const tEl = document.getElementById('quiz-game-timer');
+      if (tEl) tEl.textContent = '';
+    }
+  }
+
+  function isFrogger() { return mapData && mapData.gameType === 'frogger'; }
+  function isGauntlet() { return mapData && mapData.gameType === 'gauntlet'; }
+  function isGauntletFaceRightMapMno9kb07() {
+    return !!(isGauntlet() && playSessionMapId === GAUNTLET_FACE_RIGHT_MAP_ID);
+  }
+  /** Crown heist rules + UI (เดียวกับหันขวา — ฉาก mno9kb07) */
+  function isGauntletCrownHeistMapPlay() {
+    return isGauntletFaceRightMapMno9kb07();
+  }
+  let gauntletCrownHowtoVisible = false;
+  function isGauntletCrownPregameBlockingPlay() {
+    if (!isGauntletCrownHeistMapPlay()) return false;
+    if (gauntletCrownRunHeldRemote) return true;
+    if (gauntletCrownPregamePhase != null && gauntletCrownPregamePhase !== 'live') return true;
+    return false;
+  }
+  function isStack() { return mapData && mapData.gameType === 'stack'; }
+  function isJumpSurvive() { return mapData && mapData.gameType === 'jump_survive'; }
+
+  function currentPlayMapId() {
+    const q = (playSessionMapId || '').trim();
+    if (q) return q;
+    if (mapData && mapData.id != null && String(mapData.id).trim() !== '') return String(mapData.id).trim();
+    return (playMapIdFromQuery || '').trim();
+  }
+
+  function isJumpSurviveMissionUiMapPlay() {
+    return isJumpSurvive() && currentPlayMapId() === JUMP_SURVIVE_MISSION_MAP_ID;
+  }
+
+  function isJumpSurviveMissionPregameBlockingPlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return false;
+    return jumpSurviveMissionPhase != null && jumpSurviveMissionPhase !== 'live' && jumpSurviveMissionPhase !== 'ended';
+  }
+
+  function jumperAssetUrl(file) {
+    return BASE + '/img/Jumper/' + file;
+  }
+
+  function hideConflictingOverlaysForJumpSurviveMission() {
+    hideConflictingOverlaysForGauntletCrown();
+  }
+
+  function jumpSurviveTimeLimitSecForMission() {
+    const m = Number(mapData && mapData.jumpSurviveTimeSec);
+    if (Number.isFinite(m) && m > 0 && m < 7200) return Math.floor(m);
+    const j = Number(playJumpSurviveMissionTimeSec);
+    if (Number.isFinite(j) && j > 0 && j < 7200) return Math.floor(j);
+    return 60;
+  }
+
+  function jumpSurviveRemainingSecMission() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveSessionStartMs <= 0) return null;
+    const lim = jumpSurviveTimeLimitSecForMission();
+    if (!(lim > 0)) return null;
+    const elapsed = (performance.now() - jumpSurviveSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function applyJumpSurviveJumperPanelImages() {
+    const howtoBg = document.querySelector('#gauntlet-crown-howto-overlay .gch-bg');
+    if (howtoBg) {
+      howtoBg.src = jumperAssetUrl('popup-Howto.png');
+      howtoBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-Howto.png';
+      };
+    }
+    const resBg = document.querySelector('#gauntlet-crown-mission-overlay .gcm-bg');
+    if (resBg) {
+      resBg.src = jumperAssetUrl('popup-result.png');
+      resBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-result.png';
+      };
+    }
+  }
+
+  function showJumpSurviveMissionHowtoOverlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    hideConflictingOverlaysForJumpSurviveMission();
+    applyJumpSurviveJumperPanelImages();
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    jumpSurviveMissionPhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.textContent = '';
+      st.classList.remove('gch-status--jumper');
+      st.classList.add('is-hidden');
+    }
+    const btn = document.getElementById('btn-gch-ready');
+    if (btn) {
+      const humans = quizCarryPregameHumanIds();
+      const soleHuman = humans.length === 1;
+      const canGo = soleHuman || isMePlayHost();
+      btn.classList.remove('is-start-phase');
+      btn.classList.toggle('is-read-only', !canGo);
+      btn.disabled = !canGo;
+      btn.title = canGo ? 'READY — เริ่มนับถอยหลัง' : 'รอโฮสต์ · Wait for host';
+      btn.setAttribute('aria-pressed', 'false');
+    }
+  }
+
+  function beginJumpSurviveMissionCountdownThenRun() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    jumpSurviveMissionPhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.classList.add('is-hidden');
+      st.classList.remove('gch-status--jumper');
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = function () {
+      if (cd) cd.classList.add('is-hidden');
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      jumpSurviveMissionPhase = 'live';
+      jumpSurviveGameEnded = false;
+      jumpSurviveEliminated = false;
+      jumpSurviveInitRuntime();
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = function () {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        jumperMissionCountdownTimer = setTimeout(step, 1000);
+      } else {
+        jumperMissionCountdownTimer = null;
+        runFinish();
+      }
+    };
+    jumperMissionCountdownTimer = setTimeout(step, 1000);
+  }
+
+  /** Jumper ภารกิจ mnptfts2: เกรดจากจำนวนผู้รอด — 6=A … 3=D; น้อยกว่า 2 = F; พอดี 2 คน = E */
+  function jumpSurviveGradeFromSurvivorCount(survivors) {
+    const s = Math.max(0, Math.floor(Number(survivors) || 0));
+    if (s >= 6) return 'A';
+    if (s === 5) return 'B';
+    if (s === 4) return 'C';
+    if (s === 3) return 'D';
+    if (s === 2) return 'E';
+    return 'F';
+  }
+
+  function jumpSurviveRollRewardCardForGrade(grade) {
+    if (grade === 'F') return null;
+    const r = Math.random();
+    if (grade === 'A' || grade === 'B') {
+      if (r < 0.35) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.7) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C' || grade === 'D') {
+      if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'E') {
+      if (r < 0.12) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+    if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  function jumpSurviveMissionTotalParticipants() {
+    let n = myId != null ? 1 : 0;
+    if (others && typeof others.size === 'number') n += others.size;
+    return n;
+  }
+
+  function jumpSurviveMissionCountAlive() {
+    let n = 0;
+    if (myId != null && !jumpSurviveEliminated) n++;
+    if (others && typeof others.forEach === 'function') {
+      others.forEach(function (o) {
+        if (o && !o.jumpSurviveEliminated) n++;
+      });
+    }
+    return n;
+  }
+
+  /** จบทันทีเมื่อไม่มีผู้รอด หรือเหลือคนเดียว (หลายคนในรอบ) — โหมด solo 1 คนยังเล่นจนหมดเวลา */
+  function jumpSurviveMissionMaybeEarlyFinish() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+    const total = jumpSurviveMissionTotalParticipants();
+    const alive = jumpSurviveMissionCountAlive();
+    if (alive === 0) {
+      endJumpSurviveMissionRound();
+      return;
+    }
+    if (total >= 2 && alive === 1) {
+      endJumpSurviveMissionRound();
+    }
+  }
+
+  function jumpSurviveBuildMissionPayload() {
+    const rows = [];
+    const pushEnt = function (id, nickname, characterId, eliminated) {
+      const alive = !eliminated;
+      const baseScore = alive ? 100 : 0;
+      rows.push({
+        id: id,
+        nickname: (nickname && String(nickname).trim()) ? String(nickname).trim() : String(id),
+        characterId: characterId ?? null,
+        baseScore: baseScore,
+        eliminated: !!eliminated,
+        rankBonus: 0,
+        finalScore: baseScore,
+      });
+    };
+    if (myId != null) {
+      pushEnt(myId, (me.nickname || nick || 'คุณ').trim() || 'คุณ', me.characterId || getPlayCharacterId(), jumpSurviveEliminated);
+    }
+    others.forEach(function (o, id) {
+      if (!o) return;
+      pushEnt(id, o.nickname, o.characterId, !!o.jumpSurviveEliminated);
+    });
+    rows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < rows.length; si++) {
+      if (rows[si] && !rows[si].eliminated) survivorCount++;
+    }
+    const participantCount = rows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = rows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: row.baseScore,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const rewardCard = jumpSurviveRollRewardCardForGrade(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function jumpSurviveMergePreviewBotsMission(mission) {
+    if (!mission || mission.uiSkin !== 'jumper' || !previewFillBots || !others || typeof others.forEach !== 'function') return mission;
+    const seen = new Set();
+    (mission.ranked || []).forEach(function (r) {
+      if (r && r.id != null) seen.add(String(r.id));
+    });
+    const baseRows = (mission.ranked || []).map(function (r) {
+      return {
+        id: r.id,
+        nickname: r.nickname,
+        characterId: r.characterId,
+        baseScore: Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+        rankBonus: 0,
+      };
+    });
+    others.forEach(function (o, id) {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.jumpSurviveEliminated ? 0 : 100,
+        eliminated: !!o.jumpSurviveEliminated,
+        rankBonus: 0,
+      });
+    });
+    baseRows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < baseRows.length; si++) {
+      if (baseRows[si] && !baseRows[si].eliminated) survivorCount++;
+    }
+    const participantCount = baseRows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      const bs = Math.max(0, Number(row.baseScore) || 0);
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: bs,
+        eliminated: !!row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: bs,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: jumpSurviveRollRewardCardForGrade(grade),
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function endJumpSurviveMissionRound() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveGameEnded) return;
+    jumpSurviveGameEnded = true;
+    jumpSurviveMissionPhase = 'ended';
+    applyJumpSurviveJumperPanelImages();
+    const mission = jumpSurviveBuildMissionPayload();
+    showGauntletCrownMissionOverlay(mission);
+  }
+  function isSpaceShooter() { return mapData && mapData.gameType === 'space_shooter'; }
+  function isBalloonBoss() { return mapData && mapData.gameType === 'balloon_boss'; }
+  function isQuizCarry() { return mapData && mapData.gameType === 'quiz_carry'; }
+  function isQuizBattle() { return mapData && mapData.gameType === 'quiz_battle'; }
+
+  function quizCarryNeonColorForChoice(choiceIndex) {
+    const i = Math.max(0, choiceIndex | 0);
+    const h = (i * 47 + 100) % 360;
+    return 'hsl(' + h + ', 72%, 62%)';
+  }
+
+  function quizCarryMinimapOptionFillCss(ov) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice((Number(ov) | 0) - 1);
+    if (th.borderMode === 'fixed' && th.fixedBorder) {
+      const m = /^rgba?\(\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\s*(?:,\s*([0-9.]+)\s*)?\)$/i.exec(String(th.fixedBorder).trim());
+      if (m) {
+        const a0 = m[4] != null && m[4] !== '' ? Number(m[4]) : 1;
+        const aa = (Number.isFinite(a0) ? Math.max(0, Math.min(1, a0)) : 1) * 0.32;
+        const t = Math.round(aa * 1000) / 1000;
+        return 'rgba(' + m[1] + ',' + m[2] + ',' + m[3] + ',' + t + ')';
+      }
+    }
+    const i = Math.max(0, ov - 1);
+    const h = (i * 47 + 100) % 360;
+    return 'hsla(' + h + ', 58%, 52%, 0.32)';
+  }
+
+  function normalizeQuizCarryQuestionFromAny(q) {
+    if (!q) return null;
+    let text = String(q.text || q.question || q.prompt || q.title || '').trim();
+    if (Array.isArray(q.choices) && q.choices.length >= 2) {
+      const choices = q.choices.map((c) => String(c));
+      let ci = Number(q.correctIndex);
+      if (!Number.isFinite(ci) || ci < 0 || ci >= choices.length) ci = 0;
+      if (!text) text = 'เลือกคำตอบที่ถูกต้อง — หยิบตัวเลือกไปวางโซนส่งคำตอบ';
+      let chSlot = Number(q.countdownHighlightSlot);
+      if (!Number.isFinite(chSlot) || chSlot < 1 || chSlot > 16) chSlot = null;
+      else chSlot = Math.floor(chSlot);
+      let choiceImageUrls = null;
+      if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+        const urls = choices.map((_, idx) => sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[idx]));
+        if (urls.some((u) => u)) choiceImageUrls = urls;
+      }
+      return { text, choices, correctIndex: ci, countdownHighlightSlot: chSlot, choiceImageUrls };
+    }
+    if (!text) return null;
+    const t = !!q.answerTrue;
+    return { text, choices: ['จริง', 'เท็จ'], correctIndex: t ? 0 : 1, countdownHighlightSlot: null };
+  }
+
+  function buildQuizCarryPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    const out = [];
+    for (let i = 0; i < md.quizQuestions.length; i++) {
+      const n = normalizeQuizCarryQuestionFromAny(md.quizQuestions[i]);
+      if (n) out.push(n);
+    }
+    return out;
+  }
+
+  function getQuizCarryHubTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    const grid = md.quizCarryHubArea;
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (row[xx] === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  /** จุดกลางโซนตัวเลือกหยิบมาวาง (ค่า grid 1..N = ลำดับ choices) เพื่อวาดข้อความบนแผนที่ */
+  function getQuizCarryOptionClusterBounds(md, slot1toN) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let n = 0, sumX = 0, sumY = 0;
+    for (let yy = 0; yy < g.length; yy++) {
+      const row = g[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === slot1toN) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+          sumX += xx + 0.5;
+          sumY += yy + 0.5;
+          n++;
+        }
+      }
+    }
+    if (!n || minX === Infinity) return null;
+    return {
+      minX, minY, maxX, maxY,
+      cx: sumX / n,
+      cy: sumY / n,
+    };
+  }
+
+  function canvasWordWrapLines(ctx, text, maxWidth) {
+    const raw = String(text || '').trim();
+    if (!raw) return [];
+    const words = raw.split(/\s+/);
+    const lines = [];
+    let cur = words[0];
+    for (let i = 1; i < words.length; i++) {
+      const w = words[i];
+      const test = cur + ' ' + w;
+      if (ctx.measureText(test).width <= maxWidth) cur = test;
+      else {
+        lines.push(cur);
+        cur = w;
+      }
+    }
+    lines.push(cur);
+    return lines;
+  }
+
+  function quizCarryOptionHeldByAnyone(optionIdx) {
+    if (optionIdx == null || optionIdx < 0) return false;
+    if (me.quizCarryHeld === optionIdx) return true;
+    for (const o of others.values()) {
+      if (o && o.quizCarryHeld === optionIdx) return true;
+    }
+    return false;
+  }
+
+  /** สไปรต์ทับช่องโซนกลาง (ม่วง) อย่างน้อย 1 ช่อง */
+  function spriteOverlapsQuizCarryHubArea(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !sp) return false;
+    const hub = md.quizCarryHubArea;
+    if (!hub || !hub.length) return false;
+    const mw = md.width || 20, mh = md.height || 15;
+    const x0 = sp.x | 0, y0 = sp.y | 0, ww = sp.w | 0, hh = sp.h | 0;
+    for (let yy = y0; yy < y0 + hh; yy++) {
+      if (yy < 0 || yy >= mh) continue;
+      const row = hub[yy];
+      if (!row) continue;
+      for (let xx = x0; xx < x0 + ww; xx++) {
+        if (xx < 0 || xx >= mw) continue;
+        if (row[xx] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** ตัวเลือกหนึ่งข้อ — มีคนถือป้ายอยู่ได้แค่คนเดียว (หยิบซ้ำไม่ได้) */
+  function pickQuizCarryTargetOptionIndexAvoidingTaken(preferredIdx) {
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1) return null;
+    let p = preferredIdx | 0;
+    if (p < 0 || p >= n) p = 0;
+    if (!quizCarryOptionHeldByAnyone(p)) return p;
+    const avail = [];
+    for (let i = 0; i < n; i++) {
+      if (!quizCarryOptionHeldByAnyone(i)) avail.push(i);
+    }
+    if (!avail.length) return null;
+    return avail[Math.floor(Math.random() * avail.length)];
+  }
+
+  /**
+   * วาดป้ายมุมมน + ขอบเรือง + ข้อความ (รูปแบบเดียวกันทั้งแมปและติดตัว) — สีจาก carryChoicePlaqueThemes[choiceIndex] · รูปจาก plaqueExtra.imageUrl
+   * @param tether ถ้ามี วาดเส้นขาวจาก (x0,y0) ถึง (x1,y1) ก่อนป้าย
+   * @param plaqueExtra optional { imageUrl }
+   */
+  function drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, tether, plaqueExtra) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex);
+    const neon = th.borderMode === 'fixed' ? th.fixedBorder : quizCarryNeonColorForChoice(choiceIndex);
+    const fillCol = th.fillBg || 'rgba(12, 10, 20, 0.88)';
+    const textCol = th.textColor || '#f8f9ff';
+    const baseLw = Math.max(0.5, Math.min(8, Number(th.borderWidthPx)));
+    const imgUrl = plaqueExtra && plaqueExtra.imageUrl ? String(plaqueExtra.imageUrl) : '';
+    const elImg = plaqueExtra && plaqueExtra.imageElement;
+    const imgFromEl = (elImg && elImg.complete && elImg.naturalWidth > 0) ? elImg : null;
+    const img = !imgFromEl && imgUrl ? getQuizCarryChoiceImageCached(imgUrl) : null;
+    const drawPlaqueImg = imgFromEl || ((img && img.complete && img.naturalWidth > 0) ? img : null);
+    const rr = Math.max(6, Math.min(12, Math.min(w, h) * 0.2));
+    const simplePreviewPlaque = previewMode && editorEmbedReturn;
+    function pathBoard() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(signX, signY, w, h, rr);
+      else ctx.rect(signX, signY, w, h);
+    }
+    if (!simplePreviewPlaque) {
+      for (let g = 4; g >= 1; g--) {
+        ctx.strokeStyle = neon;
+        ctx.globalAlpha = 0.07 + g * 0.06;
+        ctx.lineWidth = baseLw + g * 3.2;
+        pathBoard();
+        ctx.stroke();
+      }
+    }
+    ctx.globalAlpha = 1;
+    ctx.fillStyle = fillCol;
+    pathBoard();
+    ctx.fill();
+    if (drawPlaqueImg) {
+      ctx.save();
+      pathBoard();
+      ctx.clip();
+      const padImg = Math.max(2, padY * 0.65);
+      const ix = signX + padImg;
+      const iy = signY + padImg;
+      const iw = Math.max(0, w - padImg * 2);
+      const ih = Math.max(0, h - padImg * 2);
+      if (iw > 0 && ih > 0) {
+        const nw = drawPlaqueImg.naturalWidth;
+        const nh = drawPlaqueImg.naturalHeight;
+        const ir = nw / nh;
+        let dw;
+        let dh;
+        if (iw / ih > ir) {
+          dh = ih;
+          dw = dh * ir;
+        } else {
+          dw = iw;
+          dh = dw / ir;
+        }
+        const dx = ix + (iw - dw) / 2;
+        const dy = iy + (ih - dh) / 2;
+        ctx.drawImage(drawPlaqueImg, 0, 0, nw, nh, dx, dy, dw, dh);
+      }
+      ctx.restore();
+    }
+    ctx.strokeStyle = neon;
+    if (simplePreviewPlaque) {
+      ctx.lineWidth = Math.max(1, baseLw * 0.85);
+      ctx.shadowBlur = 0;
+      pathBoard();
+      ctx.stroke();
+    } else {
+      ctx.lineWidth = baseLw;
+      ctx.shadowColor = neon;
+      ctx.shadowBlur = 14;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 8;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+    const attachX = signX + w / 2;
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'middle';
+    ctx.fillStyle = textCol;
+    const lh = lineH || 12;
+    if (!simplePreviewPlaque && lines && lines.length) {
+      ctx.shadowColor = 'rgba(0,0,0,0.55)';
+      ctx.shadowBlur = 3;
+    }
+    if (lines && lines.length) {
+      const n = lines.length;
+      const textBlockH = n * lh;
+      const y0 = signY + Math.max(padY, (h - textBlockH) / 2);
+      const firstLineCenterY = y0 + lh / 2;
+      for (let li = 0; li < n; li++) {
+        ctx.fillText(lines[li], attachX, firstLineCenterY + li * lh);
+      }
+    }
+    ctx.shadowBlur = 0;
+    if (tether && Number.isFinite(tether.x0) && Number.isFinite(tether.y0)) {
+      ctx.strokeStyle = 'rgba(255,255,255,0.95)';
+      ctx.lineWidth = 1.5;
+      ctx.lineCap = 'round';
+      ctx.lineJoin = 'round';
+      ctx.shadowBlur = 0;
+      ctx.beginPath();
+      ctx.moveTo(tether.x0, tether.y0);
+      ctx.lineTo(tether.x1, tether.y1);
+      ctx.stroke();
+    }
+  }
+
+  /**
+   * กล่องป้ายบนจอ (signX, signY, w, h) ให้ตรงกับ drawQuizCarryChoiceLabels สำหรับช่อง idx 0-based
+   */
+  function computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, idx0Based) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return null;
+    const q = quizCarryCurrent;
+    const choices = q.choices;
+    if (!choices || !choices.length || idx0Based < 0 || idx0Based >= choices.length) return null;
+    const i = idx0Based;
+    const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+    if (!b) return null;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const choiceText = String(choices[i] || '').trim();
+    const imgUrl = getQuizCarryPlaqueImageUrlForIndex(q, i);
+    const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+    const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+      : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+    if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) return null;
+    const tileSpanX = (b.maxX - b.minX + 1);
+    const tileSpanY = (b.maxY - b.minY + 1);
+    const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+    const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+    const wx = b.cx * tileSize;
+    const wy = b.cy * tileSize;
+    const [sx, sy] = worldToScreen(wx, wy);
+    ctx.save();
+    let signX;
+    let signY;
+    let w;
+    let h;
+    if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+      const minW = minPlaqueW;
+      const minH = minPlaqueH;
+      signX = sx - minW / 2;
+      signY = sy - minH / 2;
+      w = minW;
+      h = minH;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    const line = choiceText;
+    const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+    let maxW = Math.max(56, tileSpanX * ts - 14);
+    const lineH = fontPx * 1.2;
+    let textLines = canvasWordWrapLines(ctx, line, maxW);
+    if (!textLines.length) textLines = [line];
+    if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+      const fp2 = Math.max(9, fontPx * 0.85);
+      ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      const lh2 = fp2 * 1.2;
+      maxW = Math.max(48, maxW - 4);
+      textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (textLines.length * lh2 > tileSpanY * ts - 8) {
+        textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+      const padX = 10;
+      const padY = 8;
+      w = Math.ceil(maxLineW + padX * 2);
+      h = Math.ceil(textLines.length * lh2 + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      signX = sx - w / 2;
+      signY = sy - h / 2;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    for (let ti = 0; ti < textLines.length; ti++) {
+      let s = textLines[ti];
+      if (ctx.measureText(s).width <= maxW) continue;
+      while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+      textLines[ti] = s + '…';
+    }
+    let maxLineW = 0;
+    for (let ti = 0; ti < textLines.length; ti++) {
+      const lw = ctx.measureText(textLines[ti]).width;
+      if (lw > maxLineW) maxLineW = lw;
+    }
+    const padX = 10;
+    const padY = 8;
+    w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+    h = Math.ceil(textLines.length * lineH + padY * 2);
+    if (imgUrl || plaqueExtra.imageElement) {
+      w = Math.max(w, minPlaqueW);
+      h = Math.max(h, minPlaqueH);
+    }
+    signX = sx - w / 2;
+    signY = sy - h / 2;
+    ctx.restore();
+    return { signX, signY, w, h };
+  }
+
+  /**
+   * ขอบเรืองรอบช่องตัวเลือก (carryEmbedCountdownHighlight + carryEmbedCountdownHighlightColor)
+   * ขนาดกรอบเท่าป้ายบนแมป (เดียวกับ drawQuizCarryChoiceLabels) ไม่ใช่ทั้ง cluster กริด
+   */
+  function drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zoom, timeMs) {
+    if (!isQuizCarry() || !mapData) return;
+    if (mapData.carryEmbedCountdownHighlight === false) return;
+    const optIdx = getQuizCarryLocalGrabbableOptionIndex();
+    if (optIdx == null) return;
+    const pr = computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, optIdx);
+    if (!pr || pr.w < 4 || pr.h < 4) return;
+    const rx = pr.signX;
+    const ry = pr.signY;
+    const rw = pr.w;
+    const rh = pr.h;
+    const rr = Math.max(6, Math.min(16, Math.min(rw, rh) * 0.14));
+    const colRaw = mapData.carryEmbedCountdownHighlightColor;
+    const strokeBase = typeof colRaw === 'string' && /^#[0-9a-fA-F]{6}$/.test(colRaw.trim()) ? colRaw.trim() : '#ffb44a';
+    const pulse = 0.55 + 0.45 * Math.sin((timeMs || 0) / 180);
+    ctx.save();
+    function pathRr() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(rx, ry, rw, rh, rr);
+      else ctx.rect(rx, ry, rw, rh);
+    }
+    pathRr();
+    ctx.fillStyle = strokeBase;
+    ctx.globalAlpha = 0.12 * pulse;
+    ctx.fill();
+    for (let g = 6; g >= 1; g--) {
+      ctx.strokeStyle = strokeBase;
+      ctx.globalAlpha = (0.07 + g * 0.055) * pulse;
+      ctx.lineWidth = 2.5 + g * 4;
+      pathRr();
+      ctx.stroke();
+    }
+    ctx.globalAlpha = 0.98;
+    ctx.strokeStyle = strokeBase;
+    ctx.lineWidth = 4;
+    ctx.shadowColor = strokeBase;
+    ctx.shadowBlur = 22 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 12 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 0;
+    ctx.globalAlpha = 1;
+    ctx.restore();
+  }
+
+  function drawQuizCarryChoiceLabels(ctx, worldToScreen, zoom) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (!quizCarryOptionsPickableNow()) return;
+    const choices = quizCarryCurrent.choices;
+    if (!choices || !choices.length) return;
+    const maxSlots = choices.length;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    ctx.save();
+    for (let i = 0; i < Math.min(choices.length, maxSlots); i++) {
+      if (quizCarryOptionHeldByAnyone(i)) continue;
+      const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+      if (!b) continue;
+      const choiceText = String(choices[i] || '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, i);
+      const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+      const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+        : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+      if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) continue;
+      const tileSpanX = (b.maxX - b.minX + 1);
+      const tileSpanY = (b.maxY - b.minY + 1);
+      const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+      const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+      if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+        const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+        const lineH = fontPx * 1.2;
+        const padY = 8;
+        const minW = minPlaqueW;
+        const minH = minPlaqueH;
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        drawQuizCarryNeonPlaque(ctx, sx - minW / 2, sy - minH / 2, minW, minH, [], lineH, padY, i, null, plaqueExtra);
+        continue;
+      }
+      const line = choiceText;
+      const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+      ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      let maxW = Math.max(56, tileSpanX * ts - 14);
+      const lineH = fontPx * 1.2;
+      let textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (!textLines.length) textLines = [line];
+      if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+        const fp2 = Math.max(9, fontPx * 0.85);
+        ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+        const lh2 = fp2 * 1.2;
+        maxW = Math.max(48, maxW - 4);
+        textLines = canvasWordWrapLines(ctx, line, maxW);
+        if (textLines.length * lh2 > tileSpanY * ts - 8) {
+          textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+        }
+        for (let ti = 0; ti < textLines.length; ti++) {
+          let s = textLines[ti];
+          if (ctx.measureText(s).width <= maxW) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+          textLines[ti] = s + '…';
+        }
+        const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+        const padX = 10;
+        const padY = 8;
+        let w = Math.ceil(maxLineW + padX * 2);
+        let h = Math.ceil(textLines.length * lh2 + padY * 2);
+        if (imgUrl || plaqueExtra.imageElement) {
+          w = Math.max(w, minPlaqueW);
+          h = Math.max(h, minPlaqueH);
+        }
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        const signX = sx - w / 2;
+        const signY = sy - h / 2;
+        drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lh2, padY, i, null, plaqueExtra);
+        continue;
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      let maxLineW = 0;
+      for (let ti = 0; ti < textLines.length; ti++) {
+        const lw = ctx.measureText(textLines[ti]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const padX = 10;
+      const padY = 8;
+      let w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+      let h = Math.ceil(textLines.length * lineH + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      const wx = b.cx * tileSize;
+      const wy = b.cy * tileSize;
+      const [sx, sy] = worldToScreen(wx, wy);
+      const signX = sx - w / 2;
+      const signY = sy - h / 2;
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lineH, padY, i, null, plaqueExtra);
+    }
+    ctx.restore();
+  }
+
+  function quizCarryHubCellPlay(md, tx, ty) {
+    const g = md && md.quizCarryHubArea;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryInteractiveCellPlay(md, tx, ty) {
+    const g = md && md.interactive;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryMapHasAnswerInteractive(md) {
+    if (!md || !md.interactive || !md.interactive.length) return false;
+    const h = md.height || 15, w = md.width || 20;
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** @returns {number|null} index ใน choices จากช่องหมายเลข 1..N บนแมป */
+  function quizCarryOptionIndexAtPlay(md, tx, ty) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g[ty]) return null;
+    const v = g[ty][tx];
+    if (v < 1 || v > QUIZ_CARRY_MAX_OPTION_SLOTS) return null;
+    const idx = v - 1;
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1 || idx >= n) return null;
+    return idx;
+  }
+
+  /** ร่างตัวละครทับช่องโซนกลาง (ม่วง) — ใช้บล็อกการเดิน */
+  function quizCarryFootprintOverlapsHub(px, py) {
+    if (!mapData || !isQuizCarry()) return false;
+    const md = mapData;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  /** ยืนข้างนอกแต่ชิดโซนกลาง — ใช้ให้กด F ส่งคำตอบได้โดยไม่ต้องย่ำบนม่วง */
+  function quizCarryFootprintAdjacentToHub(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryHubCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtHub(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsHub(px, py) || quizCarryFootprintAdjacentToHub(md, px, py);
+  }
+
+  function quizCarryFootprintOverlapsInteractive(md, px, py) {
+    if (!md) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  function quizCarryFootprintAdjacentToInteractive(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryInteractiveCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtInteractiveZone(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsInteractive(md, px, py) || quizCarryFootprintAdjacentToInteractive(md, px, py);
+  }
+
+  /** ส่งคำตอบ: ถ้ามีโซน interactive (เขียว) ในแมป ใช้โซนนั้น — ไม่มี fallback ชิดโซนกลาง */
+  function quizCarryCanSubmitAnswerAt(md, px, py) {
+    if (!md) return false;
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      return quizCarryCanSubmitAtInteractiveZone(md, px, py);
+    }
+    return quizCarryCanSubmitAtHub(md, px, py);
+  }
+
+  /** ข้อความใน HUD / โซนคำถาม — ไม่รวมตัวเลือก (แสดงบนแผนที่ตามจุดสี) */
+  function formatQuizCarryQuestionHud(q) {
+    if (!q) return '';
+    return String(q.text || q.question || q.prompt || q.title || '').trim();
+  }
+
+  function quizCarryRestoreEmbedPhaseLabel() {
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl || !mapData) return;
+    phaseEl.textContent = quizCarryMapHasAnswerInteractive(mapData)
+      ? 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งที่โซน interactive (เขียว) — เล่นพร้อมกันได้'
+      : 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งเมื่อชิดโซนกลาง (ม่วงเป็นกำแพง) — เล่นพร้อมกันได้';
+  }
+
+  function isQuizCarryEmbedCountdownBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now());
+  }
+
+  function isQuizCarryEmbedLobbyBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryPregameActive);
+  }
+
+  function quizCarryPregameHumanIds() {
+    const ids = [];
+    if (myId != null && !isPreviewBotId(myId)) ids.push(String(myId));
+    others.forEach((_, id) => {
+      if (!isPreviewBotId(id)) ids.push(String(id));
+    });
+    return ids;
+  }
+
+  function quizCarryPregameBotCount() {
+    let n = 0;
+    others.forEach((_, id) => {
+      if (isPreviewBotId(id)) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (quizCarryLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameTotalPlayers() {
+    return quizCarryPregameHumanIds().length + quizCarryPregameBotCount();
+  }
+
+  function isMePlayHost() {
+    if (myId == null) return false;
+    if (playHostId == null) return true;
+    return String(playHostId) === String(myId);
+  }
+
+  function hideQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function showQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    updateQuizCarryPregameHud();
+  }
+
+  function quizCarrySyncGuestReadyIfNeeded() {
+    if (!quizCarryPregameActive || myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (quizCarryLobbyReadyMap[sid]) return;
+    quizCarryLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-ready', { ready: true });
+  }
+
+  function updateQuizCarryPregameHud() {
+    if (!quizCarryPregameActive) return;
+    const st = document.getElementById('quiz-carry-pregame-status');
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    const primaryImg = document.getElementById('quiz-carry-pregame-primary-img');
+    const num = quizCarryPregameReadyNumerator();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    if (st) {
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humans = quizCarryPregameHumanIds();
+    const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+    const meReady = !!(myId && quizCarryLobbyReadyMap[String(myId)]);
+    if (primaryImg) {
+      primaryImg.src = humansReady ? '/Game/img/quiz-carry/btn-start.png' : '/Game/img/quiz-carry/btn-ready.png';
+      primaryImg.alt = humansReady ? 'START' : 'READY';
+    }
+    if (primary) {
+      primary.classList.toggle('is-start-phase', humansReady);
+      primary.classList.toggle('is-read-only', !isMePlayHost());
+      primary.classList.toggle('is-pressed', isMePlayHost() && meReady && !humansReady);
+      primary.disabled = !isMePlayHost();
+      primary.setAttribute('aria-pressed', humansReady ? 'false' : (meReady ? 'true' : 'false'));
+      primary.title = isMePlayHost()
+        ? (humansReady ? 'START' : (meReady ? 'ยกเลิก READY' : 'READY'))
+        : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+    }
+  }
+
+  function beginQuizCarryEmbedPregame() {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    quizCarryPregameActive = true;
+    quizCarryLobbyReadyMap = {};
+    quizCarryPregameHumanIds().forEach((id) => { quizCarryLobbyReadyMap[id] = false; });
+    showQuizCarryPregameOverlay();
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-sync-request');
+    quizCarrySyncGuestReadyIfNeeded();
+    updateQuizCarryPregameHud();
+  }
+
+  function endQuizCarryEmbedPregameAndStart() {
+    if (!quizCarryPregameActive) return;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPickNextQuestion();
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+  }
+
+  function quizCarryOptionsPickableNow() {
+    if (!isQuizCarry() || !quizCarryCurrent) return true;
+    if (!quizCarryOptionRevealAt || quizCarryOptionRevealAt <= 0) return true;
+    return Date.now() >= quizCarryOptionRevealAt;
+  }
+
+  function quizCarryApplyPhaseTimersForCurrentQuestion() {
+    if (!quizCarryCurrent) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      return;
+    }
+    const readMs = Math.max(0, Math.floor(Number(quizCarryCarryTimingMs.carryReadMs)) || 0);
+    const ansMs = Math.max(1000, Math.floor(Number(quizCarryCarryTimingMs.carryAnswerMs)) || 5000);
+    const t0 = Date.now();
+    if (readMs <= 0) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = t0 + ansMs;
+    } else {
+      quizCarryOptionRevealAt = t0 + readMs;
+      quizCarryAnswerCloseAt = quizCarryOptionRevealAt + ansMs;
+    }
+  }
+
+  function updateQuizCarryCarryPhaseHud() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !quizCarryCurrent) return;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl) return;
+    const now = Date.now();
+    if (quizCarryOptionRevealAt > 0 && now < quizCarryOptionRevealAt) {
+      const remain = Math.max(0, Math.ceil((quizCarryOptionRevealAt - now) / 1000));
+      phaseEl.textContent = 'อ่านคำถาม — ตัวเลือกขึ้นใน ' + remain + ' วิ';
+      return;
+    }
+    if (quizCarryAnswerCloseAt > now) {
+      const remain = Math.max(0, Math.ceil((quizCarryAnswerCloseAt - now) / 1000));
+      phaseEl.textContent = 'หยิบ/ส่งคำตอบ — เหลือ ' + remain + ' วิ';
+      return;
+    }
+    quizCarryRestoreEmbedPhaseLabel();
+  }
+
+  function tickQuizCarryRoundTimers() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (quizCarryEmbedCountdownEndAt > Date.now()) return;
+    if (quizCarryEmbedPendingQuestion) return;
+    if (!quizCarryAnswerCloseAt || quizCarryAnswerCloseAt <= 0) return;
+    if (Date.now() < quizCarryAnswerCloseAt) return;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryOptionRevealAt = 0;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    quizCarryAfterRoundResolved();
+  }
+
+  /** นับ 3–2–1: ไม่โชว์ข้อความคำถามใน overlay — มีแค่เลข */
+  function hideQuizCarryEmbedCountdownQuestionChrome() {
+    const cq = document.getElementById('quiz-carry-embed-countdown-q');
+    const ck = document.getElementById('quiz-carry-embed-countdown-kicker');
+    if (cq) {
+      cq.textContent = '';
+      cq.style.display = 'none';
+    }
+    if (ck) ck.style.display = 'none';
+  }
+
+  function hideQuizCarryEmbedCountdownOverlay() {
+    resetQuizCarryEmbedCountdownLayoutDom();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+    hideQuizCarryEmbedCountdownQuestionChrome();
+  }
+
+  function tickQuizCarryEmbedCountdown() {
+    if (!previewMode || !editorEmbedReturn || !isQuizCarry()) return;
+    if (!quizCarryEmbedPendingQuestion || quizCarryEmbedCountdownEndAt <= 0) return;
+    const now = Date.now();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (now >= quizCarryEmbedCountdownEndAt) {
+      const pq = quizCarryEmbedPendingQuestion;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      if (!pq) return;
+      quizCarryCurrent = pq;
+      preloadQuizCarryChoiceImages(pq);
+      playQuizText = formatQuizCarryQuestionHud(pq);
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      quizCarryRestoreEmbedPhaseLabel();
+      others.forEach((o) => {
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      syncQuizCarryEmbedQuestionStrip();
+      quizCarryApplyPhaseTimersForCurrentQuestion();
+      return;
+    }
+    const elapsed = now - quizCarryEmbedCountdownStartAt;
+    const n = 3 - Math.min(2, Math.floor(elapsed / 1000));
+    if (numEl) numEl.textContent = String(Math.max(1, Math.min(3, n)));
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    syncQuizCarryEmbedCountdownLayout();
+    hideQuizCarryEmbedCountdownQuestionChrome();
+    syncQuizCarryEmbedQuestionStrip();
+  }
+
+  function quizCarryPickNextQuestion() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!quizCarryPool.length) {
+      quizCarryCurrent = null;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      playQuizText = 'ไม่มีคำถาม — ใส่ quizQuestions ในแมป (choices + correctIndex) หรือตั้งใน Admin';
+      return;
+    }
+    let q;
+    let guard = 0;
+    do {
+      q = quizCarryPool[Math.floor(Math.random() * quizCarryPool.length)];
+      guard++;
+    } while (guard < 12 && quizCarryPool.length > 1 && quizCarryCurrent && q && q.text === quizCarryCurrent.text);
+    if (previewMode && editorEmbedReturn) {
+      quizCarryEmbedPendingQuestion = q;
+      preloadQuizCarryChoiceImages(q);
+      quizCarryEmbedCountdownStartAt = Date.now();
+      quizCarryEmbedCountdownEndAt = quizCarryEmbedCountdownStartAt + 3000;
+      quizCarryCurrent = null;
+      playQuizText = '';
+      clearQuizMapQuestionCarryFeedback();
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      me.quizCarryHeld = null;
+      others.forEach((o) => {
+        if (!o) return;
+        o.quizCarryHeld = null;
+        o.botPath = [];
+        o.botPathStuckTicks = 0;
+        /* ต้องใช้ performance.now() ช่วงกับ stepQuizCarryPreviewBots — ห้ามใช้ Date.now() epoch ไม่งั้นบอทค้าง pathfind ตลอด */
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = '…';
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'รอเริ่มคำถาม — นับถอยหลัง 3 · 2 · 1';
+      tickQuizCarryEmbedCountdown();
+      syncQuizCarryEmbedQuestionStrip();
+      return;
+    }
+    quizCarryCurrent = q;
+    preloadQuizCarryChoiceImages(q);
+    playQuizText = formatQuizCarryQuestionHud(q);
+    clearQuizMapQuestionCarryFeedback();
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+    });
+    quizCarryApplyPhaseTimersForCurrentQuestion();
+  }
+
+  /** หลังจบข้อหนึ่งข้อ (ถูกหรือหมดเวลา): พรีวิวนับรอบจนครบ carrySessionLength แล้วจบเซสชัน */
+  function quizCarryAfterRoundResolved() {
+    if (!isQuizCarry()) return;
+    if (isDetectiveMinigamePlay()) {
+      finishDetectiveMinigameAndReturnLobby();
+      return;
+    }
+    if (!previewMode) {
+      quizCarryPickNextQuestion();
+      return;
+    }
+    quizCarryRoundsCompleted++;
+    const lim = quizCarrySessionLength;
+    if (lim > 0 && quizCarryRoundsCompleted >= lim) {
+      showQuizCarrySessionCompleteOverlay();
+      return;
+    }
+    quizCarryPickNextQuestion();
+  }
+
+  function playQuizCarryAvatarUrlForMission(characterId) {
+    if (!characterId) return '';
+    return BASE + '/img/characters/' + encodeURIComponent(String(characterId)) + '_down.png';
+  }
+
+  /** อวาตาร์สรุปภารกิจ / DOM — ใช้สี gen เดียวกับในเกม (เลเยอร์ + tint) */
+  function applyQuizCarryRankAvatarTint(imgEl, characterId, peerId) {
+    if (!imgEl || !characterId) return;
+    let attempts = 0;
+    const fallbackUrl = playQuizCarryAvatarUrlForMission(characterId);
+    const tick = () => {
+      attempts++;
+      const nowT = Date.now();
+      const rawImg = getCharacterFrame(characterId, 'down', nowT, false) || getCharacterImg(characterId, 'down');
+      if (!rawImg) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      if ((!rawImg.complete || !rawImg.naturalWidth) && attempts < 28) {
+        if (fallbackUrl) imgEl.src = fallbackUrl + '?p=' + String(attempts);
+        setTimeout(tick, 90);
+        return;
+      }
+      if (!rawImg.naturalWidth) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      const tint = playTintFromPeerId(peerId != null ? String(peerId) : String(characterId));
+      const out = getPlayTintedAvatarSource(rawImg, characterId, 'down', nowT, false, tint);
+      if (out && out.tagName === 'CANVAS' && out.width > 0) {
+        try {
+          imgEl.src = out.toDataURL('image/png');
+          return;
+        } catch (e) { /* ต่อไปลอง walk หรือ URL */ }
+      }
+      if (out && out.src && out !== rawImg) {
+        imgEl.src = out.src;
+        return;
+      }
+      if (attempts < 28 && playCharLayerDiscoveryPending(characterId)) {
+        setTimeout(tick, 120);
+        return;
+      }
+      imgEl.src = rawImg.src || fallbackUrl;
+    };
+    tick();
+  }
+
+  /** เกรดจากค่าเฉลี่ยคะแนนทีม (0–100 หลังปัด) — A 80–100, B 60–79, C 0–59 */
+  function quizCarryGradeFromTeamAverage(avgRounded) {
+    if (avgRounded >= 80) return 'A';
+    if (avgRounded >= 60) return 'B';
+    return 'C';
+  }
+
+  function quizCarryRollCardRewardForGrade(grade) {
+    const u = Math.random() * 100;
+    if (grade === 'A') {
+      if (u < 30) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 80) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (u < 20) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 50) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C') {
+      if (u < 20) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    return null;
+  }
+
+  function quizCarryBuildMissionRankList() {
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+        characterId: me.characterId || getPlayCharacterId(),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+        characterId: o.characterId || null,
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    return ranks.slice(0, 5);
+  }
+
+  function cancelEmbedPreviewLobbyReturnTimer() {
+    if (embedPreviewLobbyReturnTimer != null) {
+      clearTimeout(embedPreviewLobbyReturnTimer);
+      embedPreviewLobbyReturnTimer = null;
+    }
+  }
+
+  function cancelQuizCarryResultEndAfterTimeup() {
+    if (quizCarryResultEndTimer != null) {
+      clearTimeout(quizCarryResultEndTimer);
+      quizCarryResultEndTimer = null;
+    }
+    cancelEmbedPreviewLobbyReturnTimer();
+  }
+
+  /** หลังภาพ result-complete / gameover (editor embed + preview): รอ 5s แล้วไปล็อบบี้ห้องพรีวิว */
+  function scheduleEmbedPreviewReturnToLobbyAfterResultEnd() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    if (!(previewMode && editorEmbedReturn)) return;
+    embedPreviewLobbyReturnTimer = setTimeout(function () {
+      embedPreviewLobbyReturnTimer = null;
+      window.location.href = buildRoomLobbyReturnHref();
+    }, 5000);
+  }
+
+  /** มีผู้เล่นอย่างน้อยหนึ่งคนได้คะแนน > 0 (= ส่งคำตอบถูกที่ฮับอย่างน้อย 1 ครั้ง; คะแนนต่อข้อคงที่ QUIZ_CARRY_POINTS_PER_CORRECT) */
+  function quizCarryAnyPlayerHasCorrectAnswer() {
+    if (!playLiveQuizScores || typeof playLiveQuizScores !== 'object') return false;
+    const keys = Object.keys(playLiveQuizScores);
+    for (let i = 0; i < keys.length; i++) {
+      if (Math.max(0, Number(playLiveQuizScores[keys[i]]) || 0) > 0) return true;
+    }
+    return false;
+  }
+
+  function hideQuizCarryResultEndLayer() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  function showQuizCarryResultEndLayer(useComplete) {
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    const img = document.getElementById('quiz-carry-result-end-img');
+    if (!el || !img) return;
+    const fname = useComplete ? 'result-complete.png' : 'result-gameover.png';
+    img.src = BASE + '/img/quiz-carry/' + fname + '?v=' + String(Date.now());
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+  }
+
+  /** Embed editor: หลัง timeup บนโต๊ะ — รอ 5 วิ แล้วโชว์ result-complete / result-gameover (ใช้ร่วม quiz_carry + crown) */
+  function scheduleEmbedDeskResultAfterDelay(okResolver) {
+    cancelQuizCarryResultEndAfterTimeup();
+    hideQuizCarryResultEndLayer();
+    const resolve = typeof okResolver === 'function' ? okResolver : function () { return !!okResolver; };
+    quizCarryResultEndTimer = setTimeout(function () {
+      quizCarryResultEndTimer = null;
+      let anyOk = false;
+      try {
+        anyOk = !!resolve();
+      } catch (e) {
+        anyOk = false;
+      }
+      hideQuizCarryTimeupOnDeskLayer();
+      showQuizCarryResultEndLayer(anyOk);
+      scheduleEmbedPreviewReturnToLobbyAfterResultEnd();
+    }, 5000);
+  }
+
+  function hideQuizCarryTimeupOnDeskLayer() {
+    cancelQuizCarryResultEndAfterTimeup();
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const anchor = el.querySelector('.qc-timeup-desk-anchor') || el.querySelector('.qc-timeup-desk-inner');
+    if (anchor) {
+      anchor.style.left = '';
+      anchor.style.top = '';
+      anchor.style.width = '';
+      anchor.style.height = '';
+    }
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  /** หลังกดรับหลักฐาน (embed preview) — แสดง timeup กลางแคนวาส (Jumper mnptfts2 = img/Jumper/result-timeup.png) แยกจากป๊อปสรุปคะแนน
+   *  @param {function():boolean} [embedResultOkFn] — ถ้าไม่ส่ง = ใช้คะแนน quiz_carry (คนตอบถูก); ส่งเมื่อ crown เพื่อเลือก complete vs gameover */
+  function showQuizCarryTimeupOnDeskLayer(embedResultOkFn) {
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const img = document.getElementById('quiz-carry-timeup-txt-img');
+    if (img) {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+        };
+        img.src = jumperAssetUrl('result-timeup.png') + '?v=' + String(Date.now());
+      } else {
+        img.onerror = null;
+        img.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+      }
+    }
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+    try {
+      syncQuizCarryTimeupDeskLayerPosition();
+    } catch (e) { /* ignore */ }
+    if (previewMode && editorEmbedReturn) {
+      scheduleEmbedDeskResultAfterDelay(embedResultOkFn || quizCarryAnyPlayerHasCorrectAnswer);
+    }
+  }
+
+  function showQuizCarryMissionSummaryOverlay(opts) {
+    opts = opts || {};
+    const forceF = !!opts.forceGradeF;
+    const overlay = document.getElementById('quiz-carry-mission-overlay');
+    if (!overlay) return;
+    hideQuizCarryTimeupOnDeskLayer();
+    const ranks = quizCarryBuildMissionRankList();
+    const parts = ranks.map((r) => Math.max(0, Number(r.score) || 0));
+    const total = parts.reduce((a, b) => a + b, 0);
+    const n = ranks.length;
+    const avgForGrade = n ? Math.min(100, Math.max(0, Math.round(total / n))) : 0;
+    const grade = forceF ? 'F' : quizCarryGradeFromTeamAverage(avgForGrade);
+    const reward = grade === 'F' ? null : quizCarryRollCardRewardForGrade(grade);
+
+    const rowEl = document.getElementById('qc-mission-rank-row');
+    const totalEl = document.getElementById('qc-mission-total-line');
+    const gradeEl = document.getElementById('qc-mission-grade');
+    const cardTextEl = document.getElementById('qc-mission-card-text');
+    const checkEl = document.getElementById('qc-mission-check');
+    const successTxt = document.getElementById('qc-mission-success-txt');
+    const rankTagLabels = ['[1st]', '[2nd]', '[3rd]', '[4th]', '[5th]'];
+    if (rowEl) {
+      rowEl.innerHTML = '';
+      ranks.forEach((r, idx) => {
+        const rank = idx + 1;
+        const cell = document.createElement('div');
+        cell.className = 'qc-mission-rank-cell';
+        const tag = document.createElement('div');
+        tag.className = 'qc-mission-rank-tag';
+        tag.textContent = rankTagLabels[rank - 1] || ('[' + rank + ']');
+        const frame = document.createElement('div');
+        frame.className = 'qc-mission-rank-frame';
+        const img = document.createElement('img');
+        img.className = 'qc-mission-rank-avatar';
+        img.alt = '';
+        applyQuizCarryRankAvatarTint(img, r.characterId, r.id);
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = 'data:image/svg+xml,' + encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="64" height="64"><rect fill="%2318223b" width="64" height="64"/><text x="32" y="36" fill="%237aa2f7" font-size="10" text-anchor="middle">?</text></svg>');
+        };
+        frame.appendChild(img);
+        const nick = document.createElement('div');
+        nick.className = 'qc-mission-rank-nick';
+        nick.textContent = r.nickname;
+        nick.title = r.nickname;
+        const sc = document.createElement('div');
+        sc.className = 'qc-mission-rank-score';
+        sc.textContent = String(r.score);
+        cell.appendChild(tag);
+        cell.appendChild(frame);
+        cell.appendChild(nick);
+        cell.appendChild(sc);
+        rowEl.appendChild(cell);
+      });
+    }
+    if (totalEl) {
+      totalEl.textContent = '';
+      if (!n) {
+        totalEl.textContent = '—';
+      } else {
+        const lab = document.createElement('span');
+        lab.textContent = 'คะแนนรวม ';
+        const nums = document.createElement('span');
+        nums.className = 'qc-mission-total-nums';
+        nums.textContent = '(' + parts.join('+') + ') = ' + total;
+        const tail = document.createElement('span');
+        tail.textContent = ' · เฉลี่ยทีม ' + avgForGrade + '/100';
+        totalEl.appendChild(lab);
+        totalEl.appendChild(nums);
+        totalEl.appendChild(tail);
+      }
+    }
+    if (gradeEl) {
+      gradeEl.textContent = grade;
+      gradeEl.className = 'qc-mission-grade qc-mission-grade--' + String(grade).toLowerCase();
+    }
+    const okMission = grade !== 'F';
+    if (checkEl) checkEl.style.display = okMission ? '' : 'none';
+    if (successTxt) {
+      successTxt.style.display = okMission ? '' : 'none';
+      if (okMission) successTxt.textContent = 'ภารกิจสำเร็จ';
+    }
+    if (cardTextEl) {
+      cardTextEl.textContent = '';
+      if (grade === 'F') {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque qc-mission-reward-plaque--muted';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = 'ไม่ได้รับการ์ด';
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = 'เกรด F';
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      } else if (reward) {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = reward.th;
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = reward.en;
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      }
+    }
+    overlay.classList.remove('is-hidden');
+    const btn = document.getElementById('btn-quiz-carry-mission-done');
+    if (btn) {
+      btn.onclick = function () {
+        overlay.classList.add('is-hidden');
+        if (previewMode && editorEmbedReturn) {
+          showQuizCarryTimeupOnDeskLayer();
+        } else {
+          window.location.href = buildRoomLobbyReturnHref();
+        }
+      };
+    }
+  }
+
+  function showQuizCarrySessionCompleteOverlay() {
+    if (quizCarrySessionEnded) return;
+    quizCarrySessionEnded = true;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    hideQuizCarryEmbedCountdownOverlay();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    playQuizText = 'ครบชุดคำถามแล้ว';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'ครบ ' + String(quizCarryRoundsCompleted) + ' ข้อ';
+    const missionOv = document.getElementById('quiz-carry-mission-overlay');
+    if (missionOv && quizCarryUseMissionSummaryOverlay) {
+      showQuizCarryMissionSummaryOverlay({
+        forceGradeF: !!(playQuizPlayerLocal && playQuizPlayerLocal.eliminated),
+      });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'เกมจบ · Game over';
+    msgEl.textContent = 'ครบจำนวนคำถามที่ตั้งไว้ (' + String(quizCarryRoundsCompleted) + ' ข้อ) · Quiz carry session finished';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  /** Toast กลางบน (หยิบ / ถูก / ผิด / คำใบ้) — ปิดการแสดงตามคำขอ UX */
+  function showQuizCarryToast(msg, ok) {
+    if (typeof window.__quizCarryToastT === 'number') clearTimeout(window.__quizCarryToastT);
+    window.__quizCarryToastT = null;
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.className = 'play-quiz-feedback';
+    el.textContent = '';
+  }
+
+  /**
+   * หยิบ/ส่งคำตอบ — ต้องกด F (fromKey) สำหรับผู้เล่น · บอท preview เรียกแบบ silent เมื่อหยุดเดินแล้ว
+   * @returns {boolean} ทำ action สำเร็จหรือไม่
+   */
+  function tryQuizCarryInteractionForPlayer(actorId, ox, oy, opts) {
+    opts = opts || {};
+    if (quizCarryPregameActive) return false;
+    if (quizCarrySessionEnded) return false;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(ox, oy);
+    const ent = actorId === myId ? me : others.get(actorId);
+    if (!ent) return false;
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    const canSubmitAnswer = quizCarryCanSubmitAnswerAt(md, ox, oy);
+    const correct = quizCarryCurrent.correctIndex;
+    let held = ent.quizCarryHeld;
+    if (held != null && canSubmitAnswer) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      ent.quizCarryHeld = null;
+      const ok = held === correct;
+      if (ok) {
+        playLiveQuizScores[actorId] = (playLiveQuizScores[actorId] || 0) + QUIZ_CARRY_POINTS_PER_CORRECT;
+        const lim = previewMode && isQuizCarry() ? quizCarrySessionLength : 0;
+        const willEnd = lim > 0 && (quizCarryRoundsCompleted + 1) >= lim;
+        const showMapFb = !opts.silent && actorId === myId;
+        if (showMapFb) showQuizMapQuestionCarryFeedback(true);
+        if (!opts.silent) {
+          const pts = QUIZ_CARRY_POINTS_PER_CORRECT;
+          showQuizCarryToast(willEnd ? ('ถูกต้อง +' + pts + ' แต้ม — ครบชุดคำถาม') : ('ถูกต้อง +' + pts + ' แต้ม — สุ่มคำถามใหม่'), true);
+        }
+        me.quizCarryHeld = null;
+        others.forEach((o) => { if (o) o.quizCarryHeld = null; });
+        const afterOk = () => { quizCarryAfterRoundResolved(); };
+        if (showMapFb) {
+          window.setTimeout(afterOk, 560);
+        } else {
+          afterOk();
+        }
+      } else {
+        if (!opts.silent && actorId === myId) {
+          showQuizMapQuestionCarryFeedback(false);
+        }
+        if (!opts.silent) {
+          showQuizCarryToast('ผิด — คืนป้ายที่โซนตัวเลือกแล้ว กด F หยิบใหม่ได้', false);
+        }
+      }
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return true;
+    }
+    if (held == null && pickupIdx != null) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      if (quizCarryOptionHeldByAnyone(pickupIdx)) {
+        if (opts.fromKey && actorId === myId && !opts.silent) {
+          showQuizCarryToast('ตัวเลือกนี้มีคนถืออยู่แล้ว — เลือกข้ออื่น', false);
+        }
+        return false;
+      }
+      ent.quizCarryHeld = pickupIdx;
+      const label = (quizCarryCurrent.choices && quizCarryCurrent.choices[pickupIdx]) || String(pickupIdx);
+      if (!opts.silent) {
+        showQuizCarryToast('หยิบ: ' + label, true);
+      }
+      return true;
+    }
+    if (opts.fromKey && actorId === myId && !opts.silent) {
+      const t = Date.now();
+      if (t - (me.quizCarryHintT || 0) > 2200) {
+        me.quizCarryHintT = t;
+        if (held != null && !canSubmitAnswer) {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ถือป้ายอยู่ — ยืนที่โซน interactive (เขียว) หรือชิดขอบแล้วกด F เพื่อส่ง'
+            : 'ถือป้ายอยู่ — ยืนชิดโซนกลาง (ม่วง) แล้วกด F เพื่อส่ง', false);
+        } else {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนโซนเขียว (interactive) แล้วกด F ส่งเมื่อถือป้าย'
+            : 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนชิดโซนกลางแล้วกด F ส่งเมื่อถือป้าย', false);
+        }
+      }
+    }
+    return false;
+  }
+
+  function quizCarryGrabCoreGatesOk() {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    if (quizCarryPregameActive || quizCarrySessionEnded) return false;
+    if (myId == null) return false;
+    if (isQuizCarryEmbedCountdownBlockingMovement()) return false;
+    if (!quizCarryOptionsPickableNow()) return false;
+    return true;
+  }
+
+  /** ดัชนีตัวเลือก 0-based ที่ผู้เล่นท้องถิ่นยืนอยู่และหยิบได้ — ไม่มีคืน null */
+  function getQuizCarryLocalGrabbableOptionIndex() {
+    if (!quizCarryGrabCoreGatesOk()) return null;
+    if (me.quizCarryHeld != null) return null;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(me.x, me.y);
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0];
+      const ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    if (pickupIdx == null || quizCarryOptionHeldByAnyone(pickupIdx)) return null;
+    return pickupIdx;
+  }
+
+  /** ยืนบนช่องตัวเลือกและหยิบได้ */
+  function quizCarryGrabPickupAvailable() {
+    return getQuizCarryLocalGrabbableOptionIndex() != null;
+  }
+
+  /** ถือป้ายแล้วยืนโซนส่งได้ */
+  function quizCarryGrabSubmitAvailable() {
+    if (!quizCarryGrabCoreGatesOk()) return false;
+    if (me.quizCarryHeld == null) return false;
+    return quizCarryCanSubmitAnswerAt(mapData, me.x, me.y);
+  }
+
+  /** true = กด F / ปุ่ม จะหยิบหรือส่งได้ทันที */
+  function quizCarryGrabInteractionAvailable() {
+    return quizCarryGrabPickupAvailable() || quizCarryGrabSubmitAvailable();
+  }
+
+  function syncQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    if (!isQuizCarry() || !mapData) {
+      btn.classList.add('is-hidden');
+      btn.classList.remove('quiz-carry-grab-btn--active');
+      btn.classList.remove('quiz-carry-grab-btn--place');
+      btn.setAttribute('aria-disabled', 'true');
+      return;
+    }
+    const grabSrc = BASE + '/img/quiz-carry/btn-grab.png';
+    const placeSrc = BASE + '/img/quiz-carry/btn-drop.png';
+    const img = btn.querySelector('img');
+    btn.classList.remove('is-hidden');
+    const active = quizCarryGrabInteractionAvailable();
+    btn.classList.toggle('quiz-carry-grab-btn--active', active);
+    btn.setAttribute('aria-disabled', active ? 'false' : 'true');
+    btn.style.pointerEvents = active ? '' : 'none';
+    if (img) {
+      if (active && quizCarryGrabSubmitAvailable()) {
+        img.src = placeSrc;
+        btn.classList.add('quiz-carry-grab-btn--place');
+        btn.title = 'ส่ง / วางคำตอบ — เหมือนกด F';
+        btn.setAttribute('aria-label', 'ส่งหรือวางคำตอบ');
+      } else {
+        img.src = grabSrc;
+        btn.classList.remove('quiz-carry-grab-btn--place');
+        btn.title = 'หยิบตัวเลือก — เหมือนกด F';
+        btn.setAttribute('aria-label', 'หยิบตัวเลือก (Grab)');
+      }
+    }
+  }
+
+  function resetQuizCarryPlayState() {
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPool = [];
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryEmbedCountdownOverlay();
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+  }
+
+  /** รวม carry จากดิสก์ — ใช้เฉพาะ GET ที่ Node รองรับ (path เดียวกับ server.js) ไม่เรียก .php เพื่อกัน 404 บน nginx/php-fpm */
+  async function mergeQuizCarrySettingsFromDisk(s) {
+    const out = s && typeof s === 'object' ? s : {};
+    try {
+      const rd = await fetch(BASE + '/api/quiz-carry-from-disk?_=' + Date.now(), { cache: 'no-store' });
+      if (rd.ok) {
+        const disk = await rd.json();
+        if (disk && typeof disk === 'object') {
+          if (disk.carryMapPanelTheme && typeof disk.carryMapPanelTheme === 'object') {
+            out.carryMapPanelTheme = disk.carryMapPanelTheme;
+          }
+          if (disk.carryEmbedCountdownTheme && typeof disk.carryEmbedCountdownTheme === 'object') {
+            out.carryEmbedCountdownTheme = disk.carryEmbedCountdownTheme;
+          }
+          if (Array.isArray(disk.carryChoicePlaqueThemes) && disk.carryChoicePlaqueThemes.length) {
+            out.carryChoicePlaqueThemes = disk.carryChoicePlaqueThemes;
+          } else if (disk.carryChoicePlaqueTheme && typeof disk.carryChoicePlaqueTheme === 'object') {
+            out.carryChoicePlaqueTheme = disk.carryChoicePlaqueTheme;
+          }
+          if (disk.carryReadMs != null) out.carryReadMs = disk.carryReadMs;
+          if (disk.carryAnswerMs != null) out.carryAnswerMs = disk.carryAnswerMs;
+          if (disk.carrySessionLength != null) out.carrySessionLength = disk.carrySessionLength;
+          const diskPlaqueScale = Number(disk.carryChoicePlaqueMapScale);
+          if (Number.isFinite(diskPlaqueScale)) {
+            out.carryChoicePlaqueMapScale = Math.max(0.85, Math.min(2.5, diskPlaqueScale));
+          }
+          if (Array.isArray(disk.carryQuestions) && disk.carryQuestions.length > 0) {
+            out.carryQuestions = disk.carryQuestions;
+          }
+        }
+      }
+    } catch (e) { /* ignore */ }
+    return out;
+  }
+
+  async function loadQuizCarryPoolAndStart() {
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    quizCarrySessionLength = 0;
+    let pool = [];
+    let s = {};
+    const snap = quizCarryJoinSettingsSnap && typeof quizCarryJoinSettingsSnap === 'object' ? quizCarryJoinSettingsSnap : null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) {
+        const raw = await r.text();
+        const trimmed = (raw || '').trim();
+        if (trimmed.startsWith('{') && trimmed.endsWith('}')) {
+          const parsed = JSON.parse(trimmed);
+          if (parsed && typeof parsed === 'object') s = parsed;
+        }
+      }
+    } catch (e) { /* Node/HTML error — ต่อจาก merge ดิสก์ */ }
+    try {
+      s = await mergeQuizCarrySettingsFromDisk(s);
+    } catch (e) { /* ignore */ }
+    if (snap) {
+      if (s.carryReadMs == null && snap.carryReadMs != null) s.carryReadMs = snap.carryReadMs;
+      if (s.carryAnswerMs == null && snap.carryAnswerMs != null) s.carryAnswerMs = snap.carryAnswerMs;
+      if (s.carrySessionLength == null && snap.carrySessionLength != null) s.carrySessionLength = snap.carrySessionLength;
+    }
+    if (snap && snap.carryMapPanelTheme && typeof snap.carryMapPanelTheme === 'object') {
+      s.carryMapPanelTheme = snap.carryMapPanelTheme;
+    }
+    if (snap && snap.carryEmbedCountdownTheme && typeof snap.carryEmbedCountdownTheme === 'object') {
+      s.carryEmbedCountdownTheme = snap.carryEmbedCountdownTheme;
+    }
+    /* ไม่ทับ carryChoicePlaqueThemes จาก snap ถ้ามีแล้ว — snapshot ตอน join อาจเก่ากว่าไฟล์ที่เพิ่งบันทึกใน Admin (รูปป้ายหาย) */
+    if (snap && (!Array.isArray(s.carryChoicePlaqueThemes) || !s.carryChoicePlaqueThemes.length)) {
+      if (Array.isArray(snap.carryChoicePlaqueThemes) && snap.carryChoicePlaqueThemes.length) {
+        s.carryChoicePlaqueThemes = snap.carryChoicePlaqueThemes;
+      } else if (snap.carryChoicePlaqueTheme && typeof snap.carryChoicePlaqueTheme === 'object') {
+        s.carryChoicePlaqueTheme = snap.carryChoicePlaqueTheme;
+      }
+    }
+    if (snap && (s.carryChoicePlaqueMapScale == null || !Number.isFinite(Number(s.carryChoicePlaqueMapScale)))) {
+      const sm = Number(snap.carryChoicePlaqueMapScale);
+      if (Number.isFinite(sm)) s.carryChoicePlaqueMapScale = sm;
+    }
+    {
+      const sc = Number(s.carryChoicePlaqueMapScale);
+      quizCarryPlaqueMapScale = Number.isFinite(sc) ? Math.max(0.85, Math.min(2.5, sc)) : 1.25;
+    }
+    try {
+      quizCarryCarryTimingMs = {
+        carryReadMs: clampPreviewMs(s.carryReadMs, 3000, 0, 120000),
+        carryAnswerMs: clampPreviewMs(s.carryAnswerMs, 5000, 1000, 300000),
+      };
+      quizCarrySessionLength = clampCarrySessionLen(s.carrySessionLength, 0);
+      setQuizCarryMapPanelThemeFromApi(s);
+      setQuizCarryEmbedCountdownThemeFromApi(s);
+      setQuizCarryChoicePlaqueThemeFromApi(s);
+      for (let ti = 0; ti < QUIZ_CARRY_MAX_OPTION_SLOTS; ti++) {
+        const tUrl = sanitizeQuizCarryImageUrlClient(getEffectiveCarryChoicePlaqueThemeForChoice(ti).plaqueImageUrl);
+        if (!tUrl || quizCarryChoiceImageCache.has(tUrl)) continue;
+        const pim = new Image();
+        quizCarryApplyImageCrossOrigin(pim, tUrl);
+        pim.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(tUrl, pim);
+        try {
+          pim.src = tUrl;
+        } catch (e) { /* ignore */ }
+      }
+      const carryOnly = s && Array.isArray(s.carryQuestions) && s.carryQuestions.length > 0;
+      const source = carryOnly ? s.carryQuestions : (s && Array.isArray(s.questions) ? s.questions : []);
+      for (let i = 0; i < source.length; i++) {
+        const n = normalizeQuizCarryQuestionFromAny(source[i]);
+        if (n) pool.push(n);
+      }
+    } catch (e) { /* map only */ }
+    if (!pool.length && mapData) pool = buildQuizCarryPoolFromMap(mapData);
+    quizCarryPool = pool;
+    for (let pi = 0; pi < pool.length; pi++) preloadQuizCarryChoiceImages(pool[pi]);
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    if (!pool.length) {
+      playQuizText = 'ไม่มีคำถาม — ตั้งใน Admin → คำถามหลายตัวเลือก หรือใส่ในแมป (quizQuestions)';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      try {
+        syncPlayQuizMapPanel();
+      } catch (e) { /* ignore */ }
+      quizCarryJoinSettingsSnap = null;
+      return;
+    }
+    if (previewMode && editorEmbedReturn) {
+      beginQuizCarryEmbedPregame();
+    } else if (isDetectiveMinigamePlay()) {
+      quizCarryPickNextQuestion();
+    } else {
+      quizCarryPickNextQuestion();
+    }
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+    try {
+      syncPlayQuizMapPanel();
+    } catch (e) { /* ignore */ }
+    quizCarryJoinSettingsSnap = null;
+  }
+
+  function setupPlayQuizCarryUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (isDetectiveMinigamePlay() || (previewMode && editorEmbedReturn)) {
+        ov.classList.add('is-hidden');
+        ov.setAttribute('aria-hidden', 'true');
+      } else {
+        ov.classList.remove('is-hidden');
+        ov.setAttribute('aria-hidden', 'false');
+      }
+    }
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = isDetectiveMinigamePlay()
+        ? ''
+        : (quizCarryMapHasAnswerInteractive(mapData)
+          ? 'แต่ละตัวเลือกมีคนถือได้คนเดียว — ส่งคำตอบที่โซน interactive (เขียว) · โซนกลางม่วงเป็นกำแพง · กด F หรือปุ่ม GRAB มุมขวาล่าง'
+          : 'แต่ละตัวเลือกมีคนถือได้คนเดียว — โซนกลางเป็นกำแพง · ยืนชิดขอบแล้วกด F หรือปุ่ม GRAB ส่งเมื่อถือป้าย');
+    }
+    resetQuizCarryPlayState();
+    if (previewMode) {
+      loadQuizCarryPoolAndStart();
+    } else {
+      playQuizText = 'เข้าห้องแล้ว — คำถามจากแมป (เล่นจริงแนะนำซิงก์ผ่านโฮสต์ในอนาคต)';
+      loadQuizCarryPoolAndStart();
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    syncQuizCarryGrabButton();
+  }
+
+  function pickRandomTileForQuizCarryOption(md, optionIndex, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const want = optionIndex + 1;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryOptionArea && md.quizCarryOptionArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === want && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryHub(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryHubArea && md.quizCarryHubArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryInteractive(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive && md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileForQuizCarrySubmit(md, o) {
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      const p = pickRandomTileInQuizCarryInteractive(md, o);
+      if (p) return p;
+    }
+    return pickRandomTileInQuizCarryHub(md, o);
+  }
+
+  /** ช่วงไม่มีข้อ / รอตัวเลือก — ให้บอทเดินเล่นในแมปเหมือน preview ทั่วไป (กันยืนนิ่งทั้งเกม) */
+  function quizCarryPreviewBotLobbyWanderStep(o, w, h) {
+    const now = Date.now();
+    o.botIsWalking = false;
+    if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+      const d = pickRandomPreviewBotWanderDir();
+      o.botWanderDx = d[0];
+      o.botWanderDy = d[1];
+    }
+    if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+    if (now >= o.botWanderNextTurn) {
+      o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+      if (Math.random() < 0.55) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+    }
+    const accX = o.botWanderDx;
+    const accY = o.botWanderDy;
+    if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+    else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+    const step = MOVE_SPEED;
+    const nx = o.x + accX * step;
+    const ny = o.y + accY * step;
+    const ox = o.x;
+    const oy = o.y;
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+    }
+    if (!Number.isFinite(o.x)) o.x = 0.5;
+    if (!Number.isFinite(o.y)) o.y = 0.5;
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+  }
+
+  function stepQuizCarryPreviewBots() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!playBotsEnabled() || !isQuizCarry() || !mapData) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const nowPf = performance.now();
+    const pathfindMinGap = editorEmbedReturn ? 280 : 140;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (quizCarryFootprintOverlapsHub(o.x, o.y)) {
+        const sn = snapPositionOutOfQuizCarryHubIfNeeded(o.x, o.y);
+        if (Math.abs(sn.x - o.x) > 0.02 || Math.abs(sn.y - o.y) > 0.02) {
+          o.x = sn.x;
+          o.y = sn.y;
+          o.botPath = [];
+          o.botPathStuckTicks = 0;
+          o.botQuizCarryPathfindAfter = 0;
+        }
+      }
+      if (!o.botPath || o.botPath.length === 0) {
+        tryQuizCarryInteractionForPlayer(id, o.x, o.y, { silent: true });
+      }
+      /* ช่วงนับถอยหลัง / เปลี่ยนข้อ — ยังให้เดินได้ */
+      if (!quizCarryCurrent) {
+        quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        return;
+      }
+      const tier = o.botTier || 'avg';
+      const pCorrect = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.35 : 0.65;
+      const rawWant = Math.random() < pCorrect ? quizCarryCurrent.correctIndex
+        : Math.floor(Math.random() * Math.max(2, (quizCarryCurrent.choices || []).length));
+      const wantIdx = pickQuizCarryTargetOptionIndexAvoidingTaken(rawWant);
+      if (!o.botPath || !o.botPath.length) {
+        if (typeof o.botQuizCarryPathfindAfter !== 'number') o.botQuizCarryPathfindAfter = 0;
+        if (nowPf < o.botQuizCarryPathfindAfter) {
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+          return;
+        }
+        const jitter = (String(id).length * 31 + ((o.x | 0) ^ (o.y | 0)) * 7) % 160;
+        if (quizCarryOptionsPickableNow()) {
+          if (o.quizCarryHeld == null && wantIdx != null) {
+            const dest = pickRandomTileForQuizCarryOption(mapData, wantIdx, o);
+            if (dest) {
+              const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          } else {
+            const sub = pickRandomTileForQuizCarrySubmit(mapData, o);
+            if (sub) {
+              const path = pathfindPlayForBot(o.x, o.y, sub.x + 0.5, sub.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          }
+          o.botQuizCarryPathfindAfter = nowPf + pathfindMinGap + jitter;
+        } else {
+          o.botQuizCarryPathfindAfter = nowPf + 120;
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        }
+      } else {
+        stepPreviewBotAlongPath(o, w, h);
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+  }
+
+  function getStackAreaBoundsPlay(area, w, h) {
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let any = false;
+    for (let y = 0; y < h; y++) {
+      const row = area && area[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) {
+          any = true;
+          minX = Math.min(minX, x);
+          maxX = Math.max(maxX, x);
+          minY = Math.min(minY, y);
+          maxY = Math.max(maxY, y);
+        }
+      }
+    }
+    if (!any) return null;
+    return {
+      minX, maxX, minY, maxY,
+      cx: (minX + maxX + 1) / 2,
+      cy: (minY + maxY + 1) / 2,
+    };
+  }
+
+  function getStackCameraCentersPx() {
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let cx = (w / 2) * ts;
+    let cy = (h / 2) * ts;
+    if (land && rel) {
+      cx = land.cx * ts;
+      cy = ((land.cy + rel.cy) / 2) * ts;
+    } else if (land) {
+      cx = land.cx * ts;
+      cy = land.cy * ts;
+    } else if (rel) {
+      cx = rel.cx * ts;
+      cy = rel.cy * ts;
+    }
+    return { px: cx, py: cy };
+  }
+
+  /** ใช้ playStackBlockWidthTiles + แผนที่ — เรียกหลังโหลด /api/game-timing เมื่อหอว่าง */
+  function reapplyStackMiniSizingFromGlobals() {
+    if (!mapData || !isStack() || !stackMini) return;
+    if (stackMini.layers && stackMini.layers.length > 0) return;
+    if (stackFall || stackMini.settling) return;
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const iw = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackMini.initialWidthTiles = iw;
+    stackMini.widthTiles = iw;
+  }
+
+  function resetStackMinigameState() {
+    stackMini = null;
+    if (!mapData || !isStack()) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let towerCX = w * 0.5;
+    let swingAmp = 1.85;
+    let floorWorldY = (h - 1) * tileSize;
+    let swingWorldY = floorWorldY - tileSize * 1.35;
+    if (land) {
+      towerCX = land.cx;
+      floorWorldY = (land.maxY + 1) * tileSize;
+      const span = Math.max(1, land.maxX - land.minX + 1);
+      swingAmp = Math.min(span * 0.44, Math.max(0.6, span * 0.36));
+    }
+    if (rel) {
+      swingWorldY = (rel.cy + 0.5) * tileSize;
+      const spanR = Math.max(1, rel.maxX - rel.minX + 1);
+      swingAmp = Math.max(swingAmp, Math.min(spanR * 0.42, 4.2));
+    }
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const initW = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackFall = null;
+    stackMini = {
+      topCenterX: towerCX,
+      widthTiles: initW,
+      initialWidthTiles: initW,
+      craneWorldX: towerCX * tileSize,
+      swingAmp,
+      phase: Math.random() * Math.PI * 2,
+      phaseSpeed: playStackSwingHz,
+      floorWorldY,
+      swingWorldY,
+      layerWorldH: Math.max(14, tileSize * 0.3),
+      blockStripH: Math.max(16, tileSize * 0.32),
+      layers: [],
+      lives: 3,
+      score: 0,
+      combo: 0,
+      lastDropAt: 0,
+      stackTiltRad: 0,
+      stackTiltVel: 0,
+    };
+    if (previewFillBots) {
+      me.stackPreviewHumanPts = 0;
+      stackPreviewHudLog = [];
+    }
+  }
+
+  function stackEaseDrop(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t;
+  }
+
+  /** ตกช้า/นุ่มขึ้นเมื่อปล่อยเพี้ยนกลาง (คล้าย Tower of Babel — มีน้ำหนักก่อนนิ่ง) */
+  function stackEaseDropPhys(t, sloppyN) {
+    t = Math.max(0, Math.min(1, t));
+    if (sloppyN < 0.14) return t * t;
+    return t < 0.5 ? 4 * t * t * t : 1 - Math.pow(-2 * t + 2, 3) / 2;
+  }
+
+  /**
+   * @param {object} hit
+   * @param {{ human?: boolean, botId?: string } | undefined} previewAttribution — โหมด preview: แยกคะแนนแสดงในแถบ (ตึกยังเป็นของร่วม)
+   */
+  function applyStackHitFromDrop(hit, previewAttribution) {
+    if (!stackMini || !hit) return;
+    if (hit.miss) {
+      stackMini.lives = Math.max(0, stackMini.lives - 1);
+      stackMini.combo = 0;
+      if (stackMini.lives <= 0) {
+        stackMini.score = Math.max(0, stackMini.score - 2);
+        stackMini.lives = 3;
+        stackMini.layers = [];
+        stackMini.widthTiles = stackMini.initialWidthTiles;
+        const lb = getStackAreaBoundsPlay(mapData.stackLandArea, mapData.width || 20, mapData.height || 15);
+        stackMini.topCenterX = lb ? lb.cx : (mapData.width || 20) * 0.5;
+        stackMini.combo = 0;
+        stackMini.stackTiltRad = 0;
+        stackMini.stackTiltVel = 0;
+      }
+    } else {
+      const W = stackMini.initialWidthTiles;
+      stackMini.layers.push({ w: W, cx: hit.placedCx });
+      stackMini.score += hit.pts;
+      if (previewFillBots && previewAttribution) {
+        if (previewAttribution.human) {
+          me.stackPreviewHumanPts = (me.stackPreviewHumanPts || 0) + hit.pts;
+        } else if (previewAttribution.botId) {
+          const ob = others.get(previewAttribution.botId);
+          if (ob) ob.stackBotScore = (ob.stackBotScore || 0) + hit.pts;
+        }
+      }
+      stackMini.combo = hit.perfect ? stackMini.combo + 1 : 0;
+      stackMini.widthTiles = W;
+      stackMini.topCenterX = hit.placedCx;
+    }
+  }
+
+  /**
+   * บล็อกทุกชั้นหน้ากว้างเท่ากัน (initialWidthTiles) · พลาดเมื่อทับแท่นไม่พอ
+   * วาดชั้นเป็นสี่เหลี่ยมแนวนอน (ไม่หมุนต่อชั้น) เพื่อกองตรง ไม่บิดเป็นกองไม้
+   */
+  function computeStackDropResult(m) {
+    const raw = m.swingAmp * Math.sin(m.phase);
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const fallW = m.initialWidthTiles;
+    let supportCx;
+    let supportW;
+    if (m.layers.length === 0) {
+      supportCx = land ? land.cx : wMap * 0.5;
+      supportW = land ? (land.maxX - land.minX + 1) : Math.max(8, fallW * 2.2);
+    } else {
+      const sup = m.layers[m.layers.length - 1];
+      supportCx = sup.cx;
+      supportW = fallW;
+    }
+    const c1 = m.topCenterX + raw;
+    const half1 = fallW * 0.5;
+    const half0 = supportW * 0.5;
+    const left = Math.max(supportCx - half0, c1 - half1);
+    const right = Math.min(supportCx + half0, c1 + half1);
+    const overlap = right - left;
+    const missThreshold =
+      m.layers.length === 0
+        ? Math.max(0.32, fallW * 0.11)
+        : Math.max(0.26, fallW * 0.17);
+    const miss = overlap < missThreshold;
+    const placedCx = c1;
+    const delta = c1 - supportCx;
+    const span = supportW * 0.5 + fallW * 0.5;
+    const offN = Math.abs(delta) / Math.max(0.01, span);
+    const perfect = !miss && offN < 0.075;
+    const bonus = perfect ? Math.min(4, m.combo || 0) : 0;
+    const pts = perfect ? (2 + bonus) : (miss ? 0 : 1);
+    const supportRatio = fallW > 0 ? overlap / fallW : 0;
+    return {
+      miss,
+      perfect,
+      pts,
+      landOffsetTiles: raw,
+      placedW: fallW,
+      placedCx,
+      overlap,
+      supportRatio,
+      delta,
+    };
+  }
+
+  /**
+   * เริ่มแอนิเมชันบล็อกร่วง (ผู้เล่น/บอทใช้ path เดียวกัน)
+   * @param {object} hit จาก computeStackDropResult
+   * @param {{ human?: boolean, botId?: string } | null} previewActor โหมด preview: ใครเป็นคนปล่อย (สำหรับคะแนน + เลื่อนตา)
+   * @returns {boolean}
+   */
+  function startStackFallAnimation(hit, previewActor) {
+    if (!stackMini || !hit || stackFall || stackMini.settling) return false;
+    const m = stackMini;
+    const tw = m.widthTiles * tileSize;
+    const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+    const lh = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    let y1 = m.floorWorldY - (m.layers.length + 1) * lh;
+    if (y1 <= m.swingWorldY) y1 = m.swingWorldY + lh * 0.55;
+    const landOff = hit.landOffsetTiles || 0;
+    const landCxWorld = (m.topCenterX + landOff) * tileSize;
+    const xLeft0 = swingXW - tw / 2;
+    const xLeft1 = landCxWorld - tw / 2;
+    const offN = Math.min(1, Math.abs(landOff) / Math.max(0.01, m.swingAmp));
+    const dur = Math.max(400, Math.min(1280, 240 + (y1 - m.swingWorldY) * 0.92 + offN * 560));
+    const tiltMax = hit.miss
+      ? 0.28 * (0.25 + offN)
+      : 0.16 * offN * (hit.perfect ? 0.1 : 1);
+    const isHumanPreview = !!(previewActor && previewActor.human);
+    const botIdPreview = previewActor && previewActor.botId ? previewActor.botId : null;
+    stackFall = {
+      t0: performance.now(),
+      dur,
+      xLeft0,
+      xLeft1,
+      tw,
+      y0: m.swingWorldY,
+      y1,
+      hit,
+      tiltMax,
+      sloppyN: offN,
+      previewHumanDrop: isHumanPreview,
+      previewBotId: botIdPreview,
+    };
+    return true;
+  }
+
+  /** @returns {boolean} เริ่มแอนิเมชันร่วงแล้วหรือไม่ */
+  function tryHumanStackDrop() {
+    if (!stackMini || !isStack() || stackFall || stackMini.settling) return false;
+    if (playBotsEnabled() && mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    if (playBotsEnabled() && !isStackPreviewHumanTurn()) return false;
+    const now = Date.now();
+    if (now - stackMini.lastDropAt < 480) return false;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { human: true } : null)) return false;
+    if (playBotsEnabled()) {
+      lastStackPreviewActorId = '__human__';
+      lastStackPreviewActorUntil = Date.now() + 900;
+    }
+    return true;
+  }
+
+  /** บอท preview: ปล่อยแบบมีแอนิเมชันร่วงเหมือนผู้เล่น — apply หลังแอนิเมชันจบ */
+  function simulatePreviewBotStackDrop(botId, o) {
+    if (!stackMini || stackFall || stackMini.settling) return;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { botId } : null)) return;
+    o.stackBotGlowUntil = Date.now() + Math.max(900, 400 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+    lastStackPreviewActorId = botId;
+    lastStackPreviewActorUntil = Date.now() + Math.max(1000, 500 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+  }
+
+  /** Stack preview: สลับตา — เฉพาะบอทที่ถึงตาถึงจะจำลองปล่อยหนึ่งครั้งแล้วเลื่อนตา */
+  function stepPreviewStackTurnBased(nowMs) {
+    if (!playBotsEnabled() || !isStack() || !stackMini || stackFall || stackMini.settling) return;
+    if (mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    const order = stackPreviewTurnOrder;
+    if (!order || order.length !== stackTurnCount) return;
+    const cur = order[stackPreviewTurnIndex];
+    if (!cur || cur.kind !== 'bot') return;
+    if (!cur.botId) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    const o = others.get(cur.botId);
+    if (!o) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    if (stackPreviewBotThinkUntil === 0) {
+      stackPreviewBotThinkUntil = nowMs + 320 + Math.random() * 480;
+      return;
+    }
+    if (nowMs < stackPreviewBotThinkUntil) return;
+    stackPreviewBotThinkUntil = 0;
+    simulatePreviewBotStackDrop(cur.botId, o);
+  }
+
+  function stackTickFrame() {
+    const now = performance.now();
+    const dt = Math.min(0.06, (now - lastStackTickMs) / 1000);
+    lastStackTickMs = now;
+    if (stackMini && stackMini.settling) {
+      const s = stackMini.settling;
+      const u = (now - s.t0) / s.dur;
+      if (u >= 1) {
+        const wasHuman = !!s.previewHumanDrop;
+        const settleBotId = s.previewBotId || null;
+        applyStackHitFromDrop({ miss: true, perfect: false, pts: 0, landOffsetTiles: 0 }, undefined);
+        if (playBotsEnabled() && (wasHuman || settleBotId)) {
+          stackPreviewLogStackDrop({ miss: true, perfect: false, pts: 0 }, { human: wasHuman, botId: settleBotId });
+        }
+        stackMini.settling = null;
+        stackMini.lastDropAt = Date.now();
+        if (playBotsEnabled() && (wasHuman || settleBotId)) advanceStackPreviewTurn();
+      }
+    } else if (stackFall) {
+      const t = (now - stackFall.t0) / stackFall.dur;
+      if (t >= 1) {
+        const wasHuman = !!stackFall.previewHumanDrop;
+        const fallBotId = stackFall.previewBotId || null;
+        const hit = stackFall.hit;
+        const stableMin = 0.52;
+        if (hit.miss) {
+          applyStackHitFromDrop(hit);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        } else if (hit.supportRatio != null && hit.supportRatio < stableMin) {
+          const stripH = stackMini.blockStripH || Math.max(16, tileSize * 0.32);
+          stackMini.settling = {
+            t0: performance.now(),
+            dur: Math.max(820, Math.min(2600, 720 + (1 - hit.supportRatio) * 3400)),
+            hit,
+            xLeft0: stackFall.xLeft1,
+            yTop0: stackFall.y1,
+            twWorld: stackFall.tw,
+            stripH,
+            delta: hit.delta || 0,
+            previewHumanDrop: wasHuman,
+            previewBotId: fallBotId,
+          };
+          stackFall = null;
+        } else {
+          let previewAttr;
+          if (playBotsEnabled()) {
+            if (wasHuman) previewAttr = { human: true };
+            else if (fallBotId) previewAttr = { botId: fallBotId };
+          }
+          applyStackHitFromDrop(hit, previewAttr);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        }
+      }
+    } else if (stackMini) {
+      stackMini.phase += stackMini.phaseSpeed * dt * Math.PI * 2;
+    }
+    stepPreviewStackTurnBased(Date.now());
+  }
+
+  function applyStackPreviewSpawnLayout() {
+    if (!mapData || mapData.gameType !== 'stack') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const cx = land ? land.cx : w / 2 - 0.5;
+    const cy = land ? land.cy : h / 2 - 0.5;
+    me.x = cx;
+    me.y = cy;
+    me.tx = cx;
+    me.ty = cy;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.x = cx + (Math.random() - 0.5) * 0.15;
+      o.y = cy + (Math.random() - 0.5) * 0.15;
+      o.tx = o.x;
+      o.ty = o.y;
+      o.stackBotScore = 0;
+      o.stackBotNextTry = Date.now() + 300 + Math.random() * 700;
+    });
+  }
+
+  function drawStackMinigame(ctx, worldToScreen, zoom) {
+    if (!stackMini) return;
+    const m = stackMini;
+    const layerWorldH = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    const stripH = m.blockStripH || Math.max(16, tileSize * 0.32);
+    const floorY = m.floorWorldY;
+    const guideTopY = Math.max(0, m.swingWorldY - tileSize * 6.5);
+    const [gtx, gty] = worldToScreen(m.topCenterX * tileSize, guideTopY);
+    const [gbx, gby] = worldToScreen(m.topCenterX * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(255,255,255,0.22)';
+    ctx.lineWidth = Math.max(1, zoom * 0.85);
+    ctx.setLineDash([5, 7]);
+    ctx.beginPath();
+    ctx.moveTo(gtx, gty);
+    ctx.lineTo(gbx, gby);
+    ctx.stroke();
+    ctx.setLineDash([]);
+    ctx.lineWidth = 1;
+
+    const nLay = m.layers.length;
+    for (let i = 0; i < nLay; i++) {
+      const L = m.layers[i];
+      const lw = (L.w != null ? L.w : m.initialWidthTiles) * tileSize;
+      const cxW = L.cx * tileSize;
+      const yb = floorY - (i + 1) * layerWorldH;
+      const xl = cxW - lw / 2;
+      const [sx, sy] = worldToScreen(xl, yb);
+      const drawW = lw * zoom;
+      const drawH = layerWorldH * zoom;
+      const hue = (i * 47) % 360;
+      ctx.fillStyle = 'hsla(' + hue + ', 68%, 56%, 0.9)';
+      ctx.fillRect(sx, sy, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255,255,255,0.38)';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(sx, sy, drawW, drawH);
+    }
+    if (m.settling) {
+      const s = m.settling;
+      const u = Math.min(1, (performance.now() - s.t0) / s.dur);
+      const ue = u * u;
+      const rotSign = s.delta >= 0 ? 1 : -1;
+      const rotRad = ue * 1.22 * rotSign;
+      const yFall = ue * ue * tileSize * 6.5;
+      const xSlide = rotSign * ue * tileSize * 0.62;
+      const cxW = s.xLeft0 + s.twWorld / 2 + xSlide;
+      const cyW = s.yTop0 + s.stripH * 0.5 + yFall;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      const drawW = s.twWorld * zoom;
+      const drawH = s.stripH * zoom;
+      const hue = (m.layers.length * 47) % 360;
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(rotRad);
+      ctx.fillStyle = 'hsla(' + hue + ', 70%, 52%, 0.93)';
+      ctx.fillRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255, 200, 140, 0.9)';
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.restore();
+    } else {
+      const twWorld = m.widthTiles * tileSize;
+      const drawStripPx = stripH * zoom;
+      let blockLeftWorld;
+      let blockTopWorld;
+      let fallTiltRad = 0;
+      if (stackFall) {
+        const tRaw = (performance.now() - stackFall.t0) / stackFall.dur;
+        const t = Math.min(1, tRaw);
+        const u = stackEaseDropPhys(t, stackFall.sloppyN);
+        blockLeftWorld = stackFall.xLeft0 + (stackFall.xLeft1 - stackFall.xLeft0) * u;
+        blockTopWorld = stackFall.y0 + (stackFall.y1 - stackFall.y0) * u;
+        fallTiltRad = stackFall.tiltMax * Math.sin(Math.PI * u);
+      } else {
+        const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+        blockLeftWorld = swingXW - twWorld / 2;
+        blockTopWorld = m.swingWorldY;
+        const cableTopY = Math.max(0, m.swingWorldY - tileSize * 6);
+        const craneX = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
+        const cxMid = blockLeftWorld + twWorld / 2;
+        const [tcx, tcy] = worldToScreen(craneX, cableTopY);
+        const [bcx, bcy] = worldToScreen(cxMid, blockTopWorld);
+        ctx.strokeStyle = 'rgba(90, 88, 86, 0.75)';
+        ctx.lineWidth = Math.max(2.2, zoom * 1.4);
+        ctx.setLineDash([]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.strokeStyle = 'rgba(125, 207, 255, 0.35)';
+        ctx.lineWidth = Math.max(1, zoom * 0.65);
+        ctx.setLineDash([3, 5]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.setLineDash([]);
+        ctx.lineWidth = 1;
+      }
+      const hitMissTint = stackFall && stackFall.hit && stackFall.hit.miss;
+      ctx.fillStyle = hitMissTint ? 'rgba(247, 118, 190, 0.88)' : 'rgba(125, 207, 255, 0.95)';
+      ctx.strokeStyle = hitMissTint ? 'rgba(255, 180, 210, 0.98)' : 'rgba(192, 202, 245, 0.98)';
+      const cxW = blockLeftWorld + twWorld / 2;
+      const cyW = blockTopWorld + stripH * 0.5;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(fallTiltRad);
+      ctx.fillRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 1;
+      ctx.restore();
+    }
+    const [fsx, fsy] = worldToScreen(0, floorY);
+    const [fex, fey] = worldToScreen(mapData.width * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(247, 118, 190, 0.65)';
+    ctx.lineWidth = 3;
+    ctx.beginPath();
+    ctx.moveTo(fsx, fsy);
+    ctx.lineTo(fex, fey);
+    ctx.stroke();
+    ctx.lineWidth = 1;
+  }
+
+  function applyGauntletTimingFromServer(payload) {
+    if (!payload || typeof payload !== 'object') return;
+    const tm = Number(payload.gauntletTickMs);
+    if (Number.isFinite(tm)) gauntletRuntimeTickMs = Math.max(80, Math.min(800, tm));
+    const jt = Number(payload.gauntletJumpTicks);
+    if (Number.isFinite(jt)) gauntletRuntimeJumpTicks = Math.max(4, Math.min(40, jt));
+    const tl = Number(payload.gauntletTimeLimitSec);
+    if (Number.isFinite(tl)) gauntletRuntimeTimeLimitSec = Math.max(0, Math.min(7200, tl));
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletEndsAt')) {
+      if (payload.gauntletEndsAt == null) gauntletEndsAtMs = null;
+      else {
+        const ge = Number(payload.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletCrownRunHeld')) {
+      gauntletCrownRunHeldRemote = !!payload.gauntletCrownRunHeld;
+      if (!gauntletCrownRunHeldRemote && isGauntletCrownHeistMapPlay()) {
+        gauntletCrownPregamePhase = 'live';
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaneImageUrls') && Array.isArray(payload.gauntletLaneImageUrls)) {
+      gauntletLaneImageUrls = payload.gauntletLaneImageUrls
+        .filter((x) => typeof x === 'string')
+        .map((x) => normalizeGauntletAssetUrlForPlay(x))
+        .filter((x) => x)
+        .slice(0, 24);
+      gauntletLaneImageUrls.forEach((x) => ensureGauntletAssetImage(x));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserTopUrl')) {
+      gauntletLaserTopUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserTopUrl === 'string' ? payload.gauntletLaserTopUrl : '');
+      ensureGauntletAssetImage(gauntletLaserTopUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserBottomUrl')) {
+      gauntletLaserBottomUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserBottomUrl === 'string' ? payload.gauntletLaserBottomUrl : '');
+      ensureGauntletAssetImage(gauntletLaserBottomUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineUrl')) {
+      gauntletLaserLineUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserLineUrl === 'string' ? payload.gauntletLaserLineUrl : '');
+      ensureGauntletAssetImage(gauntletLaserLineUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserFillColor')) {
+      gauntletLaserFillColor = clampClientLaserColor(payload.gauntletLaserFillColor, gauntletLaserFillColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserStrokeColor')) {
+      gauntletLaserStrokeColor = clampClientLaserColor(payload.gauntletLaserStrokeColor, gauntletLaserStrokeColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineWidthPx')) {
+      const lw = Number(payload.gauntletLaserLineWidthPx);
+      if (Number.isFinite(lw)) gauntletLaserLineWidthPx = Math.max(0, Math.min(24, Math.round(lw)));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackSwingHz')) {
+      const sh = Number(payload.stackSwingHz);
+      if (Number.isFinite(sh)) playStackSwingHz = Math.max(0.08, Math.min(2.8, sh));
+      if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackBlockWidthTiles')) {
+      const raw = payload.stackBlockWidthTiles;
+      if (raw == null || raw === '') playStackBlockWidthTiles = null;
+      else {
+        const nw = Number(raw);
+        playStackBlockWidthTiles = Number.isFinite(nw) && nw >= 0.85
+          ? Math.max(0.85, Math.min(3.2, Math.round(nw * 100) / 100))
+          : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveJumpHeightMult')) {
+      const jm = Number(payload.jumpSurviveJumpHeightMult);
+      if (Number.isFinite(jm)) {
+        playJumpSurviveJumpHeightMult = Math.round(Math.max(0.5, Math.min(4, jm)) * 100) / 100;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveMissionTimeSec')) {
+      const jt = Number(payload.jumpSurviveMissionTimeSec);
+      if (Number.isFinite(jt) && jt > 0) {
+        playJumpSurviveMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(jt)));
+      } else {
+        playJumpSurviveMissionTimeSec = 0;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'spaceShooterMissionTimeSec')) {
+      const st = Number(payload.spaceShooterMissionTimeSec);
+      if (Number.isFinite(st) && st > 0) {
+        playSpaceShooterMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(st)));
+      } else {
+        playSpaceShooterMissionTimeSec = 0;
+      }
+    }
+    if (isStack() && stackMini) reapplyStackMiniSizingFromGlobals();
+  }
+
+  /** เลอร์ปตำแหน่งตัวละครต่อเฟรม (ยิ่งสูงยิ่งตามเป้าเร็ว) */
+  const GAUNTLET_VIS_LERP = 0.42;
+
+  function gauntletObsSmoothstep(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t * (3 - 2 * t);
+  }
+
+  function cloneGauntletObsSnap(arr) {
+    if (!Array.isArray(arr)) return [];
+    return arr.map((o) => {
+      if (!o || o.id == null) return null;
+      const row = { id: o.id, kind: o.kind, x: o.x, y: o.y };
+      if (o.kind === 'laser') {
+        if (o.y0 != null) row.y0 = o.y0;
+        if (o.y1 != null) row.y1 = o.y1;
+      }
+      return row;
+    }).filter(Boolean);
+  }
+
+  function gauntletLaserRowHitRange(ob, mapH) {
+    const h = Math.max(1, Math.floor(Number(mapH)) || 15);
+    let y0 = ob && ob.y0 != null && Number.isFinite(Number(ob.y0)) ? Math.floor(Number(ob.y0)) : 0;
+    let y1 = ob && ob.y1 != null && Number.isFinite(Number(ob.y1)) ? Math.floor(Number(ob.y1)) : h - 1;
+    y0 = Math.max(0, Math.min(h - 1, y0));
+    y1 = Math.max(0, Math.min(h - 1, y1));
+    if (y1 < y0) {
+      const t = y0;
+      y0 = y1;
+      y1 = t;
+    }
+    return { y0, y1 };
+  }
+
+  function gauntletLaserOverlapsPlayerRow(ob, py, mapH) {
+    const { y0, y1 } = gauntletLaserRowHitRange(ob, mapH);
+    return py >= y0 && py <= y1;
+  }
+
+  /** โค้งยกตัว: ขึ้นถึงจุดสูงสุดเร็ว ลงชัน (รู้สึกลงพื้นเร็วกว่าแบบสมมาตร) */
+  function gauntletLiftHeightNorm(air, jumpTicksMax) {
+    const jm = Math.max(4, jumpTicksMax || 16);
+    const a = Math.max(0, Math.min(jm, Number(air) || 0));
+    const t = a / jm;
+    const peakAt = 0.28;
+    if (t >= peakAt) {
+      const span = 1 - peakAt;
+      const u = span > 0 ? (t - peakAt) / span : 0;
+      return Math.max(0, 1 - u * u * 1.2);
+    }
+    return Math.min(1, t / peakAt);
+  }
+
+  function getGauntletObsDrawPositionsAt(nowMs) {
+    if (!gauntletObsRenderNext.length) return [];
+    const elapsed = nowMs - gauntletObsBlendT0;
+    const alpha = gauntletObsSmoothstep(elapsed / gauntletRuntimeTickMs);
+    const prevMap = new Map(gauntletObsRenderPrev.map((o) => [o.id, o]));
+    const out = [];
+    for (let i = 0; i < gauntletObsRenderNext.length; i++) {
+      const n = gauntletObsRenderNext[i];
+      if (!n) continue;
+      const p = prevMap.get(n.id);
+      let drawX = n.x;
+      if (p && Number.isFinite(p.x) && Number.isFinite(n.x)) drawX = p.x + (n.x - p.x) * alpha;
+      const row = { id: n.id, kind: n.kind, drawX, y: n.y };
+      if (n.kind === 'laser') {
+        if (n.y0 != null) row.y0 = n.y0;
+        if (n.y1 != null) row.y1 = n.y1;
+      }
+      out.push(row);
+    }
+    return out;
+  }
+
+  function pushGauntletObsRenderFrame(newObs) {
+    const now = performance.now();
+    const next = cloneGauntletObsSnap(newObs);
+    if (!gauntletObsRenderNext.length) {
+      gauntletObsRenderPrev = next.slice();
+      gauntletObsRenderNext = next.slice();
+    } else {
+      const curDraw = getGauntletObsDrawPositionsAt(now);
+      const curMap = new Map(curDraw.map((o) => [o.id, o.drawX]));
+      gauntletObsRenderPrev = next.map((n) => {
+        const row = {
+          id: n.id,
+          kind: n.kind,
+          x: curMap.has(n.id) ? curMap.get(n.id) : n.x,
+          y: n.y,
+        };
+        if (n.kind === 'laser') {
+          if (n.y0 != null) row.y0 = n.y0;
+          if (n.y1 != null) row.y1 = n.y1;
+        }
+        return row;
+      });
+      gauntletObsRenderNext = next;
+    }
+    gauntletObsBlendT0 = now;
+  }
+
+  function lerpGauntletEntityPos(x, y, tx, ty) {
+    let nx = x;
+    let ny = y;
+    if (tx != null && Number.isFinite(tx)) {
+      nx += (tx - nx) * GAUNTLET_VIS_LERP;
+      if (Math.abs(tx - nx) < 0.02) nx = tx;
+    }
+    if (ty != null && Number.isFinite(ty)) {
+      ny += (ty - ny) * GAUNTLET_VIS_LERP;
+      if (Math.abs(ty - ny) < 0.02) ny = ty;
+    }
+    return { nx, ny };
+  }
+
+  /**
+   * บอท preview ใน Gauntlet: ตัดสินใจกระโดด (client-only; เซิร์ฟเวอร์ไม่รู้จักบอท)
+   * — ตอบสนองสิ่งกีดขวางที่ชนเซลล์เดียวกัน + กระโดดล่วงหน้าเมื่อ threat อยู่คอลัมน์ถัดไป
+   */
+  function maybePreviewBotGauntletJump(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    if ((o.gauntletJumpTicks || 0) > 0) return;
+    const { ch: gauntletCh } = getCharacterFootprintWH(mapData);
+    let sameCell = false;
+    let incomingCol = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const obs = obstacles[i];
+      if (!obs) continue;
+      if (obs.kind === 'lane' && typeof obs.y === 'number') {
+        if (obs.x === px && obs.y >= py && obs.y < py + gauntletCh) sameCell = true;
+        if (obs.x === px + 1 && obs.y >= py && obs.y < py + gauntletCh) incomingCol = true;
+      }
+      if (obs.kind === 'laser' && typeof obs.x === 'number') {
+        if (obs.x === px && gauntletLaserOverlapsPlayerRow(obs, py, h)) sameCell = true;
+        if (obs.x === px + 1 && gauntletLaserOverlapsPlayerRow(obs, py, h)) incomingCol = true;
+      }
+    }
+    const tier = o.botTier || 'avg';
+    const roll = Math.random();
+    const pSame = tier === 'sharp' ? 0.96 : tier === 'weak' ? 0.62 : 0.86;
+    const pAhead = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.48 : 0.72;
+    if (sameCell && roll < pSame) {
+      o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+      return;
+    }
+    if (incomingCol && roll < pAhead) o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+  }
+
+  /** หนึ่ง tick เดียวกับ runGauntletTick ฝั่งเซิร์ฟเวอร์ (เฉพาะ collision + เลื่อน x) */
+  function applyGauntletPhysicsToPreviewBot(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    const air = (o.gauntletJumpTicks || 0) > 0;
+    const { ch: gauntletCh2 } = getCharacterFootprintWH(mapData);
+    const crown = isGauntletCrownHeistMapPlay();
+    let advanceX = false;
+    let hitBack = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const ob = obstacles[i];
+      if (!ob) continue;
+      if (ob.kind === 'lane' && typeof ob.y === 'number' && ob.x === px && ob.y >= py && ob.y < py + gauntletCh2) {
+        if (air) advanceX = true;
+        else hitBack = true;
+      }
+      if (ob.kind === 'laser' && typeof ob.x === 'number' && ob.x === px) {
+        if (!gauntletLaserOverlapsPlayerRow(ob, py, h)) {
+          /* เลเซอร์ไม่ครอบแถวนี้ */
+        } else if (air) {
+          advanceX = true;
+        } else {
+          hitBack = true;
+        }
+      }
+    }
+    if (advanceX) {
+      px = Math.min(w - 2, px + 1);
+      o.gauntletJumpTicks = 0;
+      if (!crown) {
+        o.gauntletScore = (o.gauntletScore || 0) + 1;
+      }
+    } else if (hitBack) {
+      if (crown) {
+        if (px <= 0) {
+          o.gauntletEliminated = true;
+          o.gauntletScore = 0;
+        } else {
+          o.gauntletScore = Math.max(0, (o.gauntletScore || 0) - 10);
+          px = Math.max(0, px - 1);
+        }
+      } else {
+        px = Math.max(0, px - 1);
+      }
+    }
+    if ((o.gauntletJumpTicks || 0) > 0) o.gauntletJumpTicks--;
+    o.tx = px;
+    o.ty = py;
+  }
+
+  function applyGauntletPreviewBotsAfterSync() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const w = mapData.width || 20;
+    const h = mapData.height || 15;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id) || !o) return;
+      maybePreviewBotGauntletJump(o, gauntletObstacles, w, h);
+      applyGauntletPhysicsToPreviewBot(o, gauntletObstacles, w, h);
+    });
+  }
+
+  /** แจ้งเซิร์ฟเวอร์แถว y ที่มีคุณ+บอททดสอบ — lane spawn ใช้เฉพาะแถวที่มี peer; บอทไม่ใช่ peer */
+  function emitGauntletPreviewRowsToServer() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const h = mapData.height || 15;
+    const ysSet = new Set();
+    const addY = (v) => {
+      const fy = Math.floor(Number(v));
+      if (Number.isFinite(fy) && fy >= 0 && fy < h) ysSet.add(fy);
+    };
+    addY(me.y);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) addY(o.y);
+    });
+    socket.emit('gauntlet-preview-rows', { ys: [...ysSet] });
+  }
+
+  /** ซ่อน overlay โหมดอื่นที่ค้างจาก embed / session ก่อน — กัน UI ซ้อนไม่ตรง mock */
+  function hideConflictingOverlaysForGauntletCrown() {
+    hideQuizCarryPregameOverlay();
+    quizCarryPregameActive = false;
+    const hideIds = [
+      'quiz-game-overlay',
+      'quiz-carry-mission-overlay',
+      'gauntlet-ended-overlay',
+      'quiz-battle-mcq-overlay',
+      'quiz-carry-embed-countdown',
+      'gauntlet-crown-countdown',
+      'quiz-carry-embed-q-strip',
+      'play-quiz-scoreboard',
+      'play-quiz-feedback',
+    ];
+    for (let i = 0; i < hideIds.length; i++) {
+      const el = document.getElementById(hideIds[i]);
+      if (el) el.classList.add('is-hidden');
+    }
+    const gcm = document.getElementById('gauntlet-crown-mission-overlay');
+    if (gcm) gcm.classList.add('is-hidden');
+  }
+
+  function gcmRankBadgeUrl(rank) {
+    const r = Math.floor(Number(rank)) || 99;
+    if (r === 1) return BASE + '/img/gauntlet-assets/result-1st.png';
+    if (r === 2) return BASE + '/img/gauntlet-assets/result-2nd.png';
+    if (r === 3) return BASE + '/img/gauntlet-assets/result-3rd.png';
+    return BASE + '/img/gauntlet-assets/result-txt-2.png';
+  }
+
+  function gauntletCrownPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (gauntletCrownLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function gauntletCrownSyncGuestReadyIfNeeded() {
+    if (gauntletCrownPregamePhase !== 'howto') return;
+    if (myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (gauntletCrownLobbyReadyMap[sid]) return;
+    gauntletCrownLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-ready', { ready: true });
+  }
+
+  function updateGauntletCrownHowtoHud() {
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn || !isGauntletCrownHeistMapPlay() || gauntletCrownPregamePhase !== 'howto') return;
+    const humans = quizCarryPregameHumanIds();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    const num = gauntletCrownPregameReadyNumerator();
+    if (st) {
+      st.classList.remove('is-hidden');
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+    btn.classList.toggle('is-start-phase', humansReady);
+    btn.classList.toggle('is-read-only', !isMePlayHost());
+    btn.disabled = !isMePlayHost();
+    btn.setAttribute('aria-pressed', humansReady ? 'false' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'true' : 'false'));
+    btn.title = isMePlayHost()
+      ? (humansReady ? 'START' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'ยกเลิก READY' : 'READY'))
+      : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+  }
+
+  function beginGauntletCrownCountdownThenRun() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = () => {
+      if (cd) cd.classList.add('is-hidden');
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      if (socket && socket.connected) {
+        socket.emit('gauntlet-crown-begin-run', (res) => {
+          if (res && res.ok) gauntletCrownPregamePhase = 'live';
+        });
+      } else {
+        gauntletCrownPregamePhase = 'live';
+      }
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = () => {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        gauntletCrownCountdownTimer = setTimeout(step, 1000);
+      } else {
+        gauntletCrownCountdownTimer = null;
+        runFinish();
+      }
+    };
+    gauntletCrownCountdownTimer = setTimeout(step, 1000);
+  }
+
+  function showGauntletCrownHowtoOverlay() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    hideConflictingOverlaysForGauntletCrown();
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-sync-request');
+    gauntletCrownSyncGuestReadyIfNeeded();
+    updateGauntletCrownHowtoHud();
+  }
+
+  /** Editor embed: quiz_carry / crown ใช้เกรด F = gameover — Jumper: ภาพจบใช้เฉพาะเมื่อไม่มีผู้รอด (0 คน) */
+  function gauntletCrownEmbedMissionAnyOk(mission) {
+    if (!mission) return false;
+    if (mission.uiSkin === 'jumper') {
+      const sc = Number(mission.survivorCount);
+      return Number.isFinite(sc) ? sc > 0 : (String(mission.grade || '').trim().toUpperCase().charAt(0) !== 'F');
+    }
+    const g = String(mission.grade || '').trim().toUpperCase().charAt(0);
+    return g !== 'F';
+  }
+
+  function gauntletCrownRankBonusLocal(rankOrdinal) {
+    if (rankOrdinal === 1) return 100;
+    if (rankOrdinal === 2) return 80;
+    if (rankOrdinal === 3) return 60;
+    return 0;
+  }
+
+  function gauntletCrownRollRewardCardLocal(grade) {
+    const r = Math.random();
+    if (grade === 'A') {
+      if (r < 0.3) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.8) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (r < 0.2) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.5) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.2) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  /**
+   * Editor embed + preview bots: รวมแถวอันดับกับบอท (สูงสุด 5 ช่อง) และคำนวณรวม/เฉลี่ย/เกรดให้สอดคล้องกับแถวที่โชว์
+   * — อันดับในช่องใช้ลำดับ 1..5 หลังเรียงคะแนน (เหมือนแนว quiz_carry mission row)
+   */
+  function gauntletCrownBuildDisplayMission(mission) {
+    if (!mission || !Array.isArray(mission.ranked)) return mission;
+    if (mission.uiSkin === 'jumper') return mission;
+    if (!(previewFillBots && isGauntletCrownHeistMapPlay() && others && typeof others.forEach === 'function')) return mission;
+
+    const seen = new Set();
+    const baseRows = [];
+    mission.ranked.forEach((r) => {
+      if (!r) return;
+      const sid = String(r.id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: r.id,
+        nickname: (r.nickname && String(r.nickname).trim()) ? String(r.nickname).trim() : 'ผู้เล่น',
+        characterId: r.characterId ?? null,
+        baseScore: r.eliminated ? 0 : Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+      });
+    });
+    others.forEach((o, id) => {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.gauntletEliminated ? 0 : Math.max(0, Number(o.gauntletScore) | 0),
+        eliminated: !!o.gauntletEliminated,
+      });
+    });
+
+    baseRows.sort((a, b) => {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      const nick = String(a.nickname).localeCompare(String(b.nickname), 'th');
+      if (nick !== 0) return nick;
+      return String(a.id).localeCompare(String(b.id));
+    });
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map((row, idx) => {
+      const pos = idx + 1;
+      const rankBonus = gauntletCrownRankBonusLocal(pos);
+      const rankLabel = pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos);
+      const finalScore = row.baseScore + rankBonus;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: rankLabel,
+        rankBonus: rankBonus,
+        finalScore: finalScore,
+      };
+    });
+
+    const totalSum = ranked.reduce(function (s, r) { return s + r.finalScore; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const grade = averageScore >= 80 ? 'A' : averageScore >= 60 ? 'B' : 'C';
+    const rewardCard = gauntletCrownRollRewardCardLocal(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: ranked.map(function (r) { return r.finalScore; }),
+    };
+  }
+
+  function showGauntletCrownMissionOverlay(mission) {
+    const ov = document.getElementById('gauntlet-crown-mission-overlay');
+    const rowEl = document.getElementById('gcm-rank-row');
+    const totalEl = document.getElementById('gcm-total');
+    const gradeEl = document.getElementById('gcm-grade');
+    const bonusEl = document.getElementById('gcm-bonus');
+    const btn = document.getElementById('btn-gcm-done');
+    if (!ov || !rowEl || !mission || !Array.isArray(mission.ranked)) return;
+    let disp = gauntletCrownBuildDisplayMission(mission);
+    if (mission.uiSkin === 'jumper') {
+      disp = jumpSurviveMergePreviewBotsMission(disp) || disp;
+    }
+    if (!disp || !Array.isArray(disp.ranked)) return;
+    rowEl.innerHTML = '';
+    disp.ranked.forEach((r) => {
+      const cell = document.createElement('div');
+      cell.className = 'gcm-cell';
+      const tag = document.createElement('div');
+      tag.className = 'gcm-rank-tag';
+      const rk = Math.floor(Number(r.rank)) || 0;
+      if (rk >= 1 && rk <= 3) {
+        const tagImg = document.createElement('img');
+        tagImg.src = gcmRankBadgeUrl(rk);
+        tagImg.alt = '[' + String(r.rankLabel || rk) + ']';
+        tagImg.style.maxWidth = '100%';
+        tagImg.style.height = 'auto';
+        tag.appendChild(tagImg);
+      } else {
+        tag.textContent = '[' + String(r.rankLabel || rk) + ']';
+      }
+      const frame = document.createElement('div');
+      frame.className = 'gcm-frame';
+      const img = document.createElement('img');
+      img.className = 'gcm-av';
+      img.alt = '';
+      const cid = r.characterId ? String(r.characterId) : '';
+      if (cid) {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) img.src = im.src;
+      } else {
+        img.src = defaultAvatarImg.src;
+      }
+      img.onerror = function () {
+        this.onerror = null;
+        this.src = defaultAvatarImg.src;
+      };
+      frame.appendChild(img);
+      if (r.eliminated) {
+        const st = document.createElement('img');
+        st.className = 'gcm-stamp';
+        const jSkin = mission && mission.uiSkin === 'jumper';
+        st.src = jSkin ? jumperAssetUrl('stamp-sacrifice.png') : (BASE + '/img/gauntlet-assets/result-Lose_stamp.png');
+        st.alt = jSkin ? 'ผู้เสียสละ' : 'เสียชีวิต';
+        st.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/gauntlet-assets/result-Lose_stamp.png';
+          this.alt = 'เสียชีวิต';
+        };
+        frame.appendChild(st);
+      }
+      const nick = document.createElement('div');
+      nick.className = 'gcm-nick';
+      nick.textContent = r.nickname || '—';
+      const sc = document.createElement('div');
+      sc.className = 'gcm-sc';
+      const jumpPlain = mission && mission.uiSkin === 'jumper';
+      const botScorePlain = previewFillBots && isGauntletCrownHeistMapPlay() && isPreviewBotId(r.id);
+      sc.textContent = (jumpPlain || botScorePlain)
+        ? String(Math.max(0, Number(r.baseScore) || 0))
+        : String(r.baseScore || 0) + '(+' + String(r.rankBonus || 0) + ')';
+      cell.appendChild(tag);
+      cell.appendChild(frame);
+      cell.appendChild(nick);
+      cell.appendChild(sc);
+      rowEl.appendChild(cell);
+    });
+    if (totalEl) {
+      const parts = (disp.totalParts || []).map((n) => String(Math.max(0, Number(n) || 0)));
+      const sum = Math.max(0, Number(disp.totalSum) || 0);
+      const avg = Math.max(0, Math.floor(Number(disp.averageScore) || 0));
+      const jumperSkin = mission && mission.uiSkin === 'jumper';
+      if (jumperSkin) {
+        const sc = Math.max(0, Math.floor(Number(disp.survivorCount) || 0));
+        const pc = Math.max(0, Math.floor(Number(disp.participantCount) || 0));
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · ผู้รอด ' + sc + '/' + pc + ' → เกรด';
+      } else {
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · เฉลี่ย ' + avg + ' → เกรด';
+      }
+    }
+    if (gradeEl) {
+      const g = String(disp.grade || 'C').toUpperCase().charAt(0);
+      gradeEl.textContent = g;
+      gradeEl.className = 'gcm-grade gcm-grade--' + g.toLowerCase();
+    }
+    if (bonusEl) {
+      bonusEl.innerHTML = '';
+      const gLetter = String(disp.grade || 'C').toUpperCase().charAt(0);
+      const missionOk = gLetter !== 'F';
+      if (missionOk) {
+        const row = document.createElement('div');
+        row.style.display = 'flex';
+        row.style.alignItems = 'center';
+        row.style.gap = '8px';
+        const chk = document.createElement('img');
+        chk.src = BASE + '/img/gauntlet-assets/result-check.png';
+        chk.alt = '';
+        chk.width = 26;
+        chk.height = 26;
+        const sp = document.createElement('span');
+        sp.style.color = '#9ece6a';
+        sp.style.fontWeight = '700';
+        sp.textContent = 'ภารกิจสำเร็จ';
+        row.appendChild(chk);
+        row.appendChild(sp);
+        bonusEl.appendChild(row);
+      }
+      const rc = disp.rewardCard;
+      if (missionOk && rc && rc.th) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.innerHTML = '<strong>' + String(rc.th) + '</strong><span>' + String(rc.en || '') + '</span>';
+        bonusEl.appendChild(pl);
+      } else if (!missionOk) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.style.borderColor = 'rgba(148, 153, 168, 0.45)';
+        pl.style.opacity = '0.95';
+        pl.innerHTML = '<strong>ไม่ได้รับการ์ด</strong><span>เกรด ' + gLetter + ' · ภารกิจไม่ผ่านเกณฑ์</span>';
+        bonusEl.appendChild(pl);
+      }
+    }
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      ov.classList.add('is-hidden');
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = function () {
+        if (previewMode && editorEmbedReturn) {
+          ov.classList.add('is-hidden');
+          showQuizCarryTimeupOnDeskLayer(function () { return gauntletCrownEmbedMissionAnyOk(disp); });
+        } else {
+          goLobby();
+        }
+      };
+    }
+  }
+
+  function isLobby() { return mapData && mapData.gameType === 'lobby'; }
+  function isQuiz() { return mapData && mapData.gameType === 'quiz'; }
+  function getLane(y) {
+    if (!mapData || !mapData.lanes) return null;
+    const lane = mapData.lanes.find(l => l.y === y);
+    return lane || (mapData.lanes[y] != null ? mapData.lanes[y] : null);
+  }
+  function getVehiclePositions(lane, width, timeMs) {
+    if (!lane || (lane.type !== 'road' && lane.type !== 'water')) return [];
+    const speed = (lane.speed != null ? lane.speed : 1) * 0.05;
+    const dir = lane.dir === -1 ? -1 : 1;
+    const spacing = lane.spacing != null ? lane.spacing : (lane.type === 'road' ? 3 : 2.5);
+    const period = width + 2;
+    const count = Math.max(2, Math.floor(period / spacing));
+    const positions = [];
+    for (let i = 0; i < count; i++) {
+      const p = i * spacing + (timeMs * speed * dir) / 60;
+      const pNorm = ((p % period) + period) % period;
+      const vx = pNorm - 1;
+      positions.push(Math.max(-1, Math.min(width, vx)));
+    }
+    return positions;
+  }
+  function checkFroggerCollision() {
+    const fy = Math.floor(me.y);
+    const lane = getLane(fy);
+    if (!lane) return false;
+    if (lane.type === 'road') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.1) return true;
+      }
+    }
+    if (lane.type === 'water') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      let onLog = false;
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.2) { onLog = true; break; }
+      }
+      if (!onLog) return true;
+    }
+    return false;
+  }
+  function respawnFrogger() {
+    const sp = mapData.spawn || { x: 1, y: mapData.height - 1 };
+    me.x = sp.x; me.y = sp.y;
+    socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+  }
+
+  /** รองรับ x/y เป็น string จาก Socket — ถ้าเช็คแค่ typeof number จะร่วงไป mapData.spawn ทุกครั้ง (จุดเกิดไม่สุ่ม) */
+  function peerXYFromJoin(peer, spawnFb) {
+    const sx = Number(spawnFb && spawnFb.x);
+    const sy = Number(spawnFb && spawnFb.y);
+    const defX = Number.isFinite(sx) ? sx : 1;
+    const defY = Number.isFinite(sy) ? sy : 1;
+    if (!peer) return { x: defX, y: defY };
+    const x = Number(peer.x);
+    const y = Number(peer.y);
+    if (Number.isFinite(x) && Number.isFinite(y)) return { x, y };
+    return { x: defX, y: defY };
+  }
+
+  /** Hub = 0/1 · กริดตัวเลือก = 0 หรือเลข 1..16 (ห้ามบังคับ === 1 เหมือน hub — เลข 2–16จะหาย) */
+  function normalizeQuizCarryLayersInPlay(md) {
+    if (!md || md.gameType !== 'quiz_carry') return;
+    const w = md.width || 20, h = md.height || 15;
+    const maxOpt = QUIZ_CARRY_MAX_OPTION_SLOTS;
+    const srcHub = md.quizCarryHubArea || [];
+    const hubRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcHub[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      hubRows.push(row);
+    }
+    md.quizCarryHubArea = hubRows;
+    const srcOpt = md.quizCarryOptionArea || [];
+    const optRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcOpt[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= maxOpt ? Math.floor(n) : 0);
+      }
+      optRows.push(row);
+    }
+    md.quizCarryOptionArea = optRows;
+    const srcCd = md.carryEmbedCountdownArea || [];
+    const cdRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcCd[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        row.push(Number(v) === 1 ? 1 : 0);
+      }
+      cdRows.push(row);
+    }
+    md.carryEmbedCountdownArea = cdRows;
+  }
+
+  /** โดม = ช่องติดกัน (4 ทิศ) ต่อ 1 ข้อ · comp id เรียงตามการค้นพบบนแมป */
+  function normalizeQuizBattleDomeInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattleDomeArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattleDomeArea = grid;
+    const comp = Array(h).fill(0).map(() => Array(w).fill(0));
+    let nextId = 0;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (grid[y][x] !== 1 || comp[y][x]) continue;
+        nextId++;
+        const stack = [[x, y]];
+        comp[y][x] = nextId;
+        while (stack.length) {
+          const c = stack.pop();
+          const cx = c[0], cy = c[1];
+          for (let i = 0; i < 4; i++) {
+            const dx = (i === 0 ? 1 : i === 1 ? -1 : 0);
+            const dy = (i === 2 ? 1 : i === 3 ? -1 : 0);
+            const nx = cx + dx, ny = cy + dy;
+            if (nx < 0 || ny < 0 || nx >= w || ny >= h) continue;
+            if (grid[ny][nx] !== 1 || comp[ny][nx]) continue;
+            comp[ny][nx] = nextId;
+            stack.push([nx, ny]);
+          }
+        }
+      }
+    }
+    md.quizBattleDomeComp = comp;
+  }
+
+  /** เส้นทาง Quiz Battle — วาดอย่างน้อย 1 ช่องแล้วจะเดินได้เฉพาะบนเส้นทาง (เปลี่ยนแค่รูปพื้นหลังได้) */
+  function normalizeQuizBattlePathInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattlePathArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattlePathArea = grid;
+  }
+
+  function quizBattlePathModeActive(md) {
+    if (!md || md.gameType !== 'quiz_battle' || !md.quizBattlePathArea) return false;
+    const g = md.quizBattlePathArea;
+    for (let y = 0; y < g.length; y++) {
+      const row = g[y];
+      if (!row) continue;
+      for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+    }
+    return false;
+  }
+
+  function quizBattleFootprintFullyOnPath(md, px, py) {
+    if (!md || !quizBattlePathModeActive(md)) return true;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return false;
+    const tiles = quizTilesFootprintPlay(px, py);
+    if (tiles.size === 0) return false;
+    const g = md.quizBattlePathArea;
+    for (const k of tiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (!g[ty] || g[ty][tx] !== 1) return false;
+    }
+    return true;
+  }
+
+  /** สแน็ปบนเลน — เช็คแค่กำแพง + อยู่บน path (ให้ตรงกับ server) ไม่ใช้ blockPlayer/ผู้เล่นคนอื่น เพราะจะทำให้หาจุดสแน็ปไม่ได้แล้วค้างนอกเลน */
+  function quizBattleSnapTargetValidPlay(x, y) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    for (const k of quizTilesWallCollisionFootprintPlay(x, y)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (quizBattlePathModeActive(mapData) && !quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    return true;
+  }
+
+  function snapPositionOntoQuizBattlePathIfNeeded(px, py) {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return { x: px, y: py };
+    if (quizBattleSnapTargetValidPlay(px, py)) return { x: px, y: py };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const g = mapData.quizBattlePathArea;
+    let bestX = null, bestY = null, bestD = Infinity;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        const nx = tx + 0.01;
+        const ny = ty + 0.01;
+        if (!quizBattleSnapTargetValidPlay(nx, ny)) continue;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    /* footprint ใหญ่กว่าเลน (เช่น 2×2 บนทางแคบ 1 ช่อง): หาช่อง path ใกล้สุดที่เดินได้อย่างน้อยที่เซ็นเตอร์ — ดีกว่าปล่อยค้างนอกเลน */
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        if (!spawnTileWalkablePlay(mapData, tx, ty)) continue;
+        const nx = tx + 0.5;
+        const ny = ty + 0.5;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    return { x: px, y: py };
+  }
+
+  /** บังคับให้ผู้เล่นอยู่บนเลน — เรียกก่อน return กลาง tick (แชท / path หมด) เพราะเดิมข้ามบล็อกสแน็ปท้าย tick */
+  function enforceQuizBattleLaneOnMePlay() {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return;
+    if (quizBattleSnapTargetValidPlay(me.x, me.y)) return;
+    const snapped = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+    me.x = snapped.x;
+    me.y = snapped.y;
+  }
+
+  function hideQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function flashQuizBattleFeedback(text, ok) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.textContent = text || '';
+    el.classList.remove('is-hidden', 'play-quiz-feedback-ok', 'play-quiz-feedback-bad');
+    el.classList.add(ok ? 'play-quiz-feedback-ok' : 'play-quiz-feedback-bad');
+    if (typeof window.__quizBattleFbT === 'number') clearTimeout(window.__quizBattleFbT);
+    window.__quizBattleFbT = setTimeout(() => { el.classList.add('is-hidden'); }, 1800);
+  }
+
+  function getQuizBattleDomeCompIdsUnderFootprint(px, py) {
+    if (!mapData || !isQuizBattle()) return [];
+    const comp = mapData.quizBattleDomeComp;
+    const grid = mapData.quizBattleDomeArea;
+    if (!comp || !grid) return [];
+    const ids = [];
+    const seen = Object.create(null);
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const cid = comp[ty] && comp[ty][tx];
+      if (grid[ty] && grid[ty][tx] === 1 && cid > 0 && !seen[cid]) {
+        seen[cid] = 1;
+        ids.push(cid);
+      }
+    }
+    return ids;
+  }
+
+  function getPrimaryQuizBattleDomeCompAt(px, py) {
+    const arr = getQuizBattleDomeCompIdsUnderFootprint(px, py);
+    if (!arr.length) return null;
+    return Math.min.apply(null, arr);
+  }
+
+  function showQuizBattleMcqModal(q) {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    const textEl = document.getElementById('quiz-battle-mcq-text');
+    if (!ov || !textEl || !q) return;
+    textEl.textContent = q.text || '';
+    const labels = ['A', 'B', 'C'];
+    for (let i = 0; i < 3; i++) {
+      const btn = ov.querySelector('.quiz-battle-choice[data-idx="' + i + '"]');
+      if (btn) {
+        const ch = (q.choices && q.choices[i]) ? String(q.choices[i]) : '';
+        btn.textContent = labels[i] + (ch ? (': ' + ch.slice(0, 96)) : '');
+      }
+    }
+    ov.classList.remove('is-hidden');
+    ov.setAttribute('aria-hidden', 'false');
+  }
+
+  function trySubmitQuizBattleChoice(idx) {
+    if (quizBattleModalCompId == null || !mapData || !isQuizBattle()) return;
+    const compId = quizBattleModalCompId;
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถาม — ตั้ง battleQuizMcq ใน Admin → Quiz Battle', false);
+      quizBattleModalCompId = null;
+      hideQuizBattleMcqModal();
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    const ok = Number(q.correctIndex) === Number(idx);
+    if (ok) {
+      quizBattleAnsweredComps.add(compId);
+      if (myId != null) {
+        if (!playLiveQuizScores) playLiveQuizScores = {};
+        playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+        renderPlayQuizScoreboard(playLiveQuizScores);
+      }
+      flashQuizBattleFeedback('ถูกต้อง · +1', true);
+    } else {
+      flashQuizBattleFeedback('ยังไม่ถูก — ลองใหม่ (กด E อีกครั้ง)', false);
+    }
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+  }
+
+  function tryOpenQuizBattleFromKey() {
+    if (!isQuizBattle() || !mapData || myId == null) return;
+    const compId = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
+    if (compId == null) {
+      flashQuizBattleFeedback('ยังไม่ยืนบนโดมคำถาม', false);
+      return;
+    }
+    if (quizBattleAnsweredComps.has(compId)) {
+      flashQuizBattleFeedback('ตอบโดมนี้ถูกแล้ว', false);
+      return;
+    }
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถามในระบบ (Admin → Quiz Battle)', false);
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    quizBattleModalCompId = compId;
+    showQuizBattleMcqModal(q);
+  }
+
+  function pushSanitizedBattleMcqFromPayload(s) {
+    if (!s || !Array.isArray(s.battleQuizMcq)) return 0;
+    let n = 0;
+    for (let i = 0; i < s.battleQuizMcq.length; i++) {
+      const raw = s.battleQuizMcq[i];
+      if (!raw || !String(raw.text || '').trim()) continue;
+      const ch = Array.isArray(raw.choices) ? raw.choices : [];
+      if (ch.length !== 3) continue;
+      const a = String(ch[0] || '').trim();
+      const b = String(ch[1] || '').trim();
+      const c = String(ch[2] || '').trim();
+      if (!a || !b || !c) continue;
+      let ci = Number(raw.correctIndex);
+      if (!Number.isFinite(ci)) ci = 0;
+      ci = Math.max(0, Math.min(2, Math.floor(ci)));
+      quizBattleMcqPool.push({
+        text: String(raw.text).trim(),
+        choices: [a, b, c],
+        correctIndex: ci,
+      });
+      n++;
+    }
+    return n;
+  }
+
+  /**
+   * โหลดชุดข้อ A/B/C — ลอง Node ก่อน แล้ว fallback PHP อ่านจากดิสก์ (กรณี nginx ไม่ส่ง /api/quiz-settings ถึง Node)
+   */
+  async function loadQuizBattleMcqPool() {
+    quizBattleMcqPool = [];
+    const bust = '_=' + Date.now();
+    const tryUrls = [
+      BASE + '/api/quiz-settings?' + bust,
+      BASE + '/api-quiz-battle-mcq.php?' + bust,
+    ];
+    for (let u = 0; u < tryUrls.length; u++) {
+      try {
+        const r = await fetch(tryUrls[u], { cache: 'no-store' });
+        if (!r.ok) continue;
+        const s = await r.json();
+        if (pushSanitizedBattleMcqFromPayload(s) > 0) break;
+      } catch (e) { /* next url */ }
+    }
+  }
+
+  function resetQuizBattlePlayState() {
+    quizBattleMcqPool = [];
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+  }
+
+  function setupPlayQuizBattleUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    /* ทดสอบจากเอดิเตอร์: อย่าเปิดแผงคำถามเต็มจอล่าง — บังมองเห็นบอท/แผนที่ (overlay ยังอัปเดตข้อความไว้ถ้าเปิด preview แบบไม่ embed) */
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'Quiz Battle';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = 'เดินทับโดม (สีฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C';
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = quizBattlePathModeActive(mapData)
+        ? 'โหมดเส้นทาง: เดินได้เฉพาะช่องเส้นทาง (ม่วงบนแผนที่) — วางโดมบนเส้นทาง · ไม่วาดเส้นทางใน Editor = เดินอิสระ · เปลี่ยนรูปพื้นหลังได้ทีหลัง'
+        : 'คำถามจาก Admin → Quiz Battle (battleQuizMcq) · ช่องโดมติดกัน = 1 ข้อ · ถูกแล้วได้ +1 ต่อโดม';
+    }
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    quizBattleMcqPool = [];
+    hideQuizBattleMcqModal();
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    loadQuizBattleMcqPool().then(() => {
+      const q2 = document.getElementById('quiz-game-question');
+      if (!q2) return;
+      if (!quizBattleMcqPool.length) {
+        q2.textContent = 'ยังไม่มีคำถาม — ไปที่ Admin แท็บ Quiz Battle แล้วบันทึกข้อ A/B/C (ครบคำถาม + A + B + C) · หรือเช็คว่าเซิร์ฟเวอร์เกม (Node) รันอยู่ · ลองรีเฟรชแบบ hard refresh (Ctrl+F5)';
+      } else {
+        const q0 = quizBattleMcqPool[0];
+        const snippet = q0 && q0.text ? String(q0.text).trim().slice(0, 100) : '';
+        const more = q0 && q0.text && String(q0.text).trim().length > 100 ? '…' : '';
+        q2.textContent = snippet
+          ? ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ · ตัวอย่าง: 「' + snippet + more + '」\nเข้าโดมสีฟ้า (ขอบแดง) แล้วกด E เพื่อเลือก A / B / C')
+          : ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ — เดินเข้าโดม (ฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C');
+      }
+      const ov2 = document.getElementById('quiz-game-overlay');
+      if (ov2 && previewMode && editorEmbedReturn) ov2.classList.add('is-hidden');
+    });
+  }
+
+  function normalizeJumpSurvivePlatformAreaInPlay(md) {
+    if (!md || md.gameType !== 'jump_survive') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.jumpSurvivePlatformArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      rows.push(row);
+    }
+    md.jumpSurvivePlatformArea = rows;
+  }
+
+  function normalizeShooterSpawnSlotsInPlay(md) {
+    if (!md || md.gameType !== 'space_shooter') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.shooterSpawnSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.shooterSpawnSlots = rows;
+  }
+
+  function getShooterSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.shooterSpawnSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.shooterSpawnSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function buildSpaceShooterParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function applySpaceShooterSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    normalizeShooterSpawnSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const n = refs.length || 1;
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getShooterSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        cx = ((idx + 1) / (n + 1)) * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.5) * ts);
+      }
+      cx = Math.max(ts * 0.5, Math.min(mw - ts * 0.5, cx));
+      cy = clampSpaceShooterWorldCy(cy, mh);
+      ent.spaceShooterCx = cx;
+      ent.spaceShooterCy = cy;
+      if (typeof ent.spaceShooterScore !== 'number' || !Number.isFinite(ent.spaceShooterScore)) ent.spaceShooterScore = 0;
+      ent.x = cx / ts - cw * 0.5;
+      ent.y = cy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function spaceShooterTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.spaceShooterTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    const g = Number(playSpaceShooterMissionTimeSec);
+    if (Number.isFinite(g) && g > 0 && g < 7200) return Math.floor(g);
+    return 90;
+  }
+
+  function spaceShooterRemainingSecPlay() {
+    const lim = spaceShooterTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - spaceShooterSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function endSpaceShooterTimeUp() {
+    if (spaceShooterGameEnded || !mapData || mapData.gameType !== 'space_shooter') return;
+    spaceShooterGameEnded = true;
+    spaceShooterBullets = [];
+    spaceShooterAsteroids = [];
+    spaceShooterSpawnAccMs = 0;
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'หมดเวลา · Time up';
+    msgEl.textContent = 'ยิงยานอวกาศจบแล้ว · SPACE SHOOTER finished — อันดับจากคะแนนยิงหิน';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.spaceShooterScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.spaceShooterScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function syncSpaceShooterFootFromShipCenter(ent) {
+    if (!ent || !mapData || ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.spaceShooterCx / ts - cw * 0.5;
+    ent.y = ent.spaceShooterCy / ts - ch * 0.92;
+  }
+
+  /** จำกัดกลางยานแนวตั้งให้อยู่แค่ครึ่งล่างของแมพ (ไม่ขึ้นเกินกึ่งกลางความสูง) */
+  function clampSpaceShooterWorldCy(cy, mhPx) {
+    if (!Number.isFinite(cy) || !Number.isFinite(mhPx) || mhPx <= 0) return cy;
+    const edge = 20;
+    const lo = mhPx * 0.5;
+    const hi = Math.max(lo + 4, mhPx - edge);
+    return Math.max(lo, Math.min(hi, cy));
+  }
+
+  function stepSpaceShooterPreviewBots(dt) {
+    if (spaceShooterGameEnded || !previewFillBots || !mapData || mapData.gameType !== 'space_shooter') return;
+    const ts = tileSize;
+    const mw = (mapData.width || 20) * ts;
+    const mh = (mapData.height || 15) * ts;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.spaceShooterCx == null) return;
+      let nearest = null, nd = 1e9;
+      for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+        const a = spaceShooterAsteroids[i];
+        if (!a) continue;
+        const d = Math.abs(a.x - o.spaceShooterCx) + Math.abs(a.y - o.spaceShooterCy) * 0.15;
+        if (d < nd) { nd = d; nearest = a; }
+      }
+      let vx = 0;
+      if (nearest) vx = nearest.x > o.spaceShooterCx ? 1 : nearest.x < o.spaceShooterCx ? -1 : 0;
+      else vx = Math.sin(performance.now() / 900 + bid.length) > 0 ? 1 : -1;
+      let vy = 0;
+      if (nearest && Math.abs(nearest.y - o.spaceShooterCy) > ts * 0.25) {
+        vy = nearest.y > o.spaceShooterCy ? 1 : -1;
+      } else if (!nearest) {
+        vy = Math.sin(performance.now() / 700 + bid.charCodeAt(0)) > 0 ? 1 : -1;
+      }
+      const spd = (o.botTier === 'sharp' ? 195 : o.botTier === 'weak' ? 115 : 155);
+      o.spaceShooterCx = Math.max(18, Math.min(mw - 18, o.spaceShooterCx + vx * spd * dt));
+      o.spaceShooterCy = clampSpaceShooterWorldCy(o.spaceShooterCy + vy * spd * 0.7 * dt, mh);
+      syncSpaceShooterFootFromShipCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.spaceShooterBotFireCd !== 'number') o.spaceShooterBotFireCd = 0;
+      o.spaceShooterBotFireCd -= dt;
+      if (o.spaceShooterBotFireCd <= 0 && nearest && nd < ts * 5) {
+        o.spaceShooterBotFireCd = o.botTier === 'sharp' ? 0.22 : o.botTier === 'weak' ? 0.48 : 0.34;
+        spaceShooterBullets.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 16, vy: -500, ownerId: bid });
+      }
+    });
+  }
+
+  function spaceShooterTickFrame() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const now = performance.now();
+    const dt = Math.min(0.055, spaceShooterLastTickMs ? (now - spaceShooterLastTickMs) / 1000 : 0.016);
+    spaceShooterLastTickMs = now;
+
+    if (spaceShooterGameEnded) {
+      const wallClock = Date.now();
+      for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+        if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+      }
+      return;
+    }
+    const remSec = spaceShooterRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endSpaceShooterTimeUp();
+      return;
+    }
+
+    const interval = Math.max(320, Number(mapData.spaceShooterAsteroidIntervalMs) || 1040);
+    spaceShooterSpawnAccMs += dt * 1000;
+    while (spaceShooterSpawnAccMs >= interval) {
+      spaceShooterSpawnAccMs -= interval;
+      spaceShooterAsteroids.push({
+        x: 36 + Math.random() * (mw - 72),
+        y: -45 - Math.random() * 90,
+        r: 13 + Math.random() * 17,
+        vy: 58 + Math.random() * 62,
+        hp: 1,
+      });
+    }
+
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.28;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.28;
+      o.spaceShooterCx = (o.x + cw * 0.5) * ts;
+      o.spaceShooterCy = clampSpaceShooterWorldCy((o.y + ch * 0.92) * ts, mh);
+    });
+
+    let vx = 0;
+    let vy = 0;
+    if (!isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) vx -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) vx += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) vy -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) vy += 1;
+    }
+    const moveSpd = 280;
+    if (me.spaceShooterCx != null) {
+      me.spaceShooterCx = Math.max(18, Math.min(mw - 18, me.spaceShooterCx + vx * moveSpd * dt));
+    }
+    if (me.spaceShooterCy != null) {
+      me.spaceShooterCy = clampSpaceShooterWorldCy(me.spaceShooterCy + vy * moveSpd * dt, mh);
+    }
+    syncSpaceShooterFootFromShipCenter(me);
+
+    spaceShooterFireCd -= dt;
+    const fireHeld = !isChatFocused() && !!keys['Space'];
+    if (fireHeld && spaceShooterFireCd <= 0 && me.spaceShooterCy != null) {
+      spaceShooterFireCd = 0.21;
+      spaceShooterBullets.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 20, vy: -580, ownerId: myId });
+    }
+
+    stepSpaceShooterPreviewBots(dt);
+
+    for (let i = spaceShooterBullets.length - 1; i >= 0; i--) {
+      const b = spaceShooterBullets[i];
+      b.y += b.vy * dt;
+      if (b.y < -50 || b.x < -30 || b.x > mw + 30) spaceShooterBullets.splice(i, 1);
+    }
+    for (let ai = spaceShooterAsteroids.length - 1; ai >= 0; ai--) {
+      const a = spaceShooterAsteroids[ai];
+      a.y += a.vy * dt;
+      if (a.y > mh + 100) spaceShooterAsteroids.splice(ai, 1);
+    }
+
+    for (let bi = spaceShooterBullets.length - 1; bi >= 0; bi--) {
+      const b = spaceShooterBullets[bi];
+      let hit = -1;
+      for (let ai = 0; ai < spaceShooterAsteroids.length; ai++) {
+        const a = spaceShooterAsteroids[ai];
+        const dx = b.x - a.x, dy = b.y - a.y;
+        const rr = (a.r + 7) * (a.r + 7);
+        if (dx * dx + dy * dy <= rr) { hit = ai; break; }
+      }
+      if (hit >= 0) {
+        const a = spaceShooterAsteroids[hit];
+        a.hp = (a.hp || 1) - 1;
+        spaceShooterBullets.splice(bi, 1);
+        if (a.hp <= 0) {
+          spaceShooterAsteroids.splice(hit, 1);
+          const add = 5;
+          if (b.ownerId === myId) {
+            me.spaceShooterScore = Math.max(0, (me.spaceShooterScore || 0) + add);
+            spaceShooterPopups.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+          } else {
+            const o = others.get(b.ownerId);
+            if (o) {
+              o.spaceShooterScore = Math.max(0, (o.spaceShooterScore || 0) + add);
+              spaceShooterPopups.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+            }
+          }
+        }
+      }
+    }
+
+    const wallClock = Date.now();
+    for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+      /* until ใช้ Date.now() — ห้ามเทียบกับ performance.now() (สเกลคนละระบบ → ลบไม่ออก) */
+      if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+    }
+
+    me.direction = 'up';
+    me.isWalking = vx !== 0 || vy !== 0;
+    const tEmit = Date.now();
+    if (tEmit - spaceShooterLastMoveEmit > 90 && socket && myId != null) {
+      spaceShooterLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        spaceShooterScore: Math.max(0, me.spaceShooterScore | 0),
+      });
+    }
+  }
+
+  function drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isSpaceShooter()) return;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const wallNow = typeof timeMs === 'number' ? timeMs : Date.now();
+
+    for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+      const a = spaceShooterAsteroids[i];
+      const [sx, sy] = worldToScreen(a.x, a.y);
+      const sr = Math.max(6, a.r * zDraw);
+      const grd = ctx.createRadialGradient(sx - sr * 0.25, sy - sr * 0.25, sr * 0.1, sx, sy, sr);
+      grd.addColorStop(0, 'rgba(90, 85, 95, 0.95)');
+      grd.addColorStop(0.55, 'rgba(35, 32, 42, 0.98)');
+      grd.addColorStop(1, 'rgba(18, 16, 24, 1)');
+      ctx.fillStyle = grd;
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr, 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 90, 60, 0.75)';
+      ctx.lineWidth = Math.max(1.5, zDraw * 1.2);
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr * 0.88, 0.6, 1.9);
+      ctx.stroke();
+      ctx.beginPath();
+      ctx.arc(sx + sr * 0.15, sy + sr * 0.1, sr * 0.35, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowColor = 'rgba(255, 60, 40, 0.55)';
+      ctx.shadowBlur = sr * 0.45;
+      ctx.strokeStyle = 'rgba(255, 120, 80, 0.35)';
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr + 3 * zDraw, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+
+    for (let i = 0; i < spaceShooterBullets.length; i++) {
+      const b = spaceShooterBullets[i];
+      for (let k = 0; k < 4; k++) {
+        const t = k / 4;
+        const yy = b.y + t * 22;
+        const [bx, by] = worldToScreen(b.x, yy);
+        ctx.fillStyle = `rgba(255, ${180 - k * 35}, ${80 - k * 15}, ${0.95 - k * 0.18})`;
+        ctx.beginPath();
+        ctx.arc(bx, by, Math.max(2, 3.2 * zDraw - k * 0.4), 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+      const [sx, sy] = worldToScreen(ent.spaceShooterCx, ent.spaceShooterCy);
+      const col = SPACE_SHOOTER_SHIP_COLORS[idx % SPACE_SHOOTER_SHIP_COLORS.length];
+      const bodyW = 14 * zDraw;
+      const bodyH = 22 * zDraw;
+      ctx.save();
+      ctx.translate(sx, sy);
+      ctx.fillStyle = col;
+      ctx.strokeStyle = 'rgba(180, 255, 255, 0.85)';
+      ctx.lineWidth = Math.max(1.2, zDraw);
+      ctx.beginPath();
+      ctx.moveTo(0, -bodyH * 0.55);
+      ctx.lineTo(-bodyW * 0.55, bodyH * 0.42);
+      ctx.lineTo(0, bodyH * 0.22);
+      ctx.lineTo(bodyW * 0.55, bodyH * 0.42);
+      ctx.closePath();
+      ctx.fill();
+      ctx.stroke();
+      ctx.fillStyle = 'rgba(255, 220, 120, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(-bodyW * 0.22, bodyH * 0.38);
+      ctx.lineTo(0, bodyH * 0.72);
+      ctx.lineTo(bodyW * 0.22, bodyH * 0.38);
+      ctx.closePath();
+      ctx.fill();
+      ctx.restore();
+      const name = (ent.nickname || '').slice(0, 10);
+      if (name) {
+        ctx.font = `${Math.max(9, 10 * zDraw)}px system-ui, "Kanit", sans-serif`;
+        ctx.textAlign = 'center';
+        ctx.fillStyle = 'rgba(224, 242, 255, 0.92)';
+        ctx.strokeStyle = 'rgba(0, 20, 40, 0.85)';
+        ctx.lineWidth = 3;
+        ctx.strokeText(name, sx, sy - bodyH * 0.62);
+        ctx.fillText(name, sx, sy - bodyH * 0.62);
+        ctx.textAlign = 'left';
+      }
+    });
+
+    for (let i = 0; i < spaceShooterPopups.length; i++) {
+      const p = spaceShooterPopups[i];
+      if (wallNow >= p.until) continue;
+      const [px, py] = worldToScreen(p.x, p.y);
+      const dur = 700;
+      const age = 1 - Math.max(0, Math.min(1, (p.until - wallNow) / dur));
+      ctx.save();
+      ctx.globalAlpha = Math.max(0, 1 - age * 0.92);
+      ctx.font = `bold ${Math.max(12, 16 * zDraw)}px Orbitron, ui-sans-serif, sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = '#ffe066';
+      ctx.strokeStyle = 'rgba(120, 60, 0, 0.6)';
+      ctx.lineWidth = 3;
+      ctx.strokeText(p.text || '+5', px, py - age * 18);
+      ctx.fillText(p.text || '+5', px, py - age * 18);
+      ctx.restore();
+    }
+  }
+
+  const BALLOON_BOSS_PLAYER_COLORS = ['#ff79c6', '#7aa2f7', '#f9e2af', '#f7768e', '#9ece6a', '#bb9af7'];
+
+  function normalizeBalloonBossPlayerSlotsInPlay(md) {
+    if (!md || md.gameType !== 'balloon_boss') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.balloonBossPlayerSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.balloonBossPlayerSlots = rows;
+  }
+
+  function getBalloonBossPlayerSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.balloonBossPlayerSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.balloonBossPlayerSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function getBalloonBossBossWorldCenterPlay(md, ts) {
+    const bx = md && md.balloonBossBossSpawn;
+    if (bx && Number.isFinite(Number(bx.x)) && Number.isFinite(Number(bx.y))) {
+      return { cx: (Number(bx.x) + 0.5) * ts, cy: (Number(bx.y) + 0.5) * ts };
+    }
+    const w = md.width || 20, h = md.height || 15;
+    return { cx: (w * 0.5) * ts, cy: (h * 0.38) * ts };
+  }
+
+  function buildBalloonBossParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function balloonBossBalloonsStartPlay() {
+    const n = Number(mapData && mapData.balloonBossBalloonsPerPlayer);
+    return Math.max(1, Math.min(12, Number.isFinite(n) ? Math.floor(n) : 5));
+  }
+
+  function balloonBossMaxHpPlay() {
+    const n = Number(mapData && mapData.balloonBossMaxHp);
+    return Math.max(20, Math.min(9999, Number.isFinite(n) ? Math.floor(n) : 100));
+  }
+
+  function balloonBossFireDelayMsPlay() {
+    const n = Number(mapData && mapData.balloonBossFireDelayMs);
+    return Math.max(120, Math.min(2000, Number.isFinite(n) ? Math.floor(n) : 380));
+  }
+
+  /** ความเร่งยาน (px/s²) — ต่ำ = คุมยาก ลื่น */
+  function balloonBossShipAccelPlay() {
+    const n = Number(mapData && mapData.balloonBossShipAccel);
+    return Math.max(80, Math.min(520, Number.isFinite(n) ? n : 210));
+  }
+
+  /** ความเร็วสูงสุดยาน (px/s) */
+  function balloonBossShipMaxSpeedPlay() {
+    const n = Number(mapData && mapData.balloonBossShipMaxSpeed);
+    return Math.max(60, Math.min(320, Number.isFinite(n) ? n : 158));
+  }
+
+  /** แรงหน่วงต่อวินาที (velocity *= 1 - min(1, drag*dt)) — สูง = หยุดเร็วขึ้น */
+  function balloonBossShipDragPlay() {
+    const n = Number(mapData && mapData.balloonBossShipDrag);
+    return Math.max(0.4, Math.min(6, Number.isFinite(n) ? n : 1.65));
+  }
+
+  function balloonBossTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.balloonBossTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    return 120;
+  }
+
+  function balloonBossRemainingSecPlay() {
+    const lim = balloonBossTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - balloonBossSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function balloonBossTeamDamagePlay() {
+    let s = Math.max(0, me.balloonBossScore | 0);
+    others.forEach((o) => { s += Math.max(0, o.balloonBossScore | 0); });
+    return s;
+  }
+
+  function syncBalloonBossFootFromCenter(ent) {
+    if (!ent || !mapData || ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.balloonBossCx / ts - cw * 0.5;
+    ent.y = ent.balloonBossCy / ts - ch * 0.92;
+  }
+
+  function clampBalloonBossWorld(cx, cy, mw, mh) {
+    const e = 22;
+    return {
+      cx: Math.max(e, Math.min(mw - e, cx)),
+      cy: Math.max(e, Math.min(mh - e, cy)),
+    };
+  }
+
+  function applyBalloonBossSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    normalizeBalloonBossPlayerSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const n = refs.length || 1;
+    const bStart = balloonBossBalloonsStartPlay();
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getBalloonBossPlayerSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        const t = (idx + 1) / (n + 1);
+        cx = t * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.2) * ts);
+      }
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      ent.balloonBossCx = cl.cx;
+      ent.balloonBossCy = cl.cy;
+      if (typeof ent.balloonBossScore !== 'number' || !Number.isFinite(ent.balloonBossScore)) ent.balloonBossScore = 0;
+      if (typeof ent.balloonBossBalloons !== 'number' || !Number.isFinite(ent.balloonBossBalloons)) ent.balloonBossBalloons = bStart;
+      if (typeof ent.balloonBossHitIframe !== 'number') ent.balloonBossHitIframe = 0;
+      ent.balloonBossVelX = 0;
+      ent.balloonBossVelY = 0;
+      ent.x = ent.balloonBossCx / ts - cw * 0.5;
+      ent.y = ent.balloonBossCy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function endBalloonBossGame(reason) {
+    if (balloonBossGameEnded || !mapData || mapData.gameType !== 'balloon_boss') return;
+    balloonBossGameEnded = true;
+    balloonBossPendingShots = [];
+    balloonBossPlayerBullets = [];
+    balloonBossBossBullets = [];
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = reason === 'victory' ? 'ชนะบอส! · Boss defeated' : 'หมดเวลา · Time up';
+    }
+    msgEl.textContent = reason === 'victory'
+      ? 'MEGA VIRUS ถูกกำจัดแล้ว — อันดับจากความเสียหายที่ทำกับบอส'
+      : 'หมดเวลา — อันดับจากความเสียหายที่ทำกับบอส';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.balloonBossScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.balloonBossScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — DMG ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function stepBalloonBossPreviewBots(dt, mw, mh, bossCx, bossCy, ts) {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'balloon_boss') return;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.balloonBossEliminated || o.balloonBossCx == null) return;
+      const wob = Math.sin(performance.now() / 800 + bid.length) * 0.55;
+      const wob2 = Math.cos(performance.now() / 1100 + bid.charCodeAt(0)) * 0.45;
+      const spd = 48;
+      let nx = o.balloonBossCx + wob * spd * dt;
+      let ny = o.balloonBossCy + wob2 * spd * 0.72 * dt;
+      const cl = clampBalloonBossWorld(nx, ny, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+      syncBalloonBossFootFromCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.balloonBossBotNextFire === 'number') o.balloonBossBotNextFire -= dt;
+      else o.balloonBossBotNextFire = 0.8 + Math.random() * 0.9;
+      if (o.balloonBossBotNextFire <= 0) {
+        o.balloonBossBotNextFire = 0.9 + Math.random() * 1.1;
+        const delayMs = balloonBossFireDelayMsPlay();
+        const dx = bossCx - o.balloonBossCx, dy = bossCy - o.balloonBossCy;
+        const d = Math.sqrt(dx * dx + dy * dy) || 1;
+        balloonBossPendingShots.push({
+          releaseAt: performance.now() + delayMs,
+          sx: o.balloonBossCx, sy: o.balloonBossCy,
+          vx: (dx / d) * 520, vy: (dy / d) * 520,
+          ownerId: bid,
+        });
+      }
+    });
+  }
+
+  function balloonBossTickFrame() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (!o || o.balloonBossEliminated) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.24;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.24;
+      const cx = (o.x + cw * 0.5) * ts;
+      const cy = (o.y + ch * 0.92) * ts;
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+    });
+    const now = performance.now();
+    const dt = Math.min(0.055, balloonBossLastTickMs ? (now - balloonBossLastTickMs) / 1000 : 0.016);
+    balloonBossLastTickMs = now;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const bossR = Math.max(36, ts * 1.15);
+    const maxHp = balloonBossMaxHpPlay();
+    const teamDmg = balloonBossTeamDamagePlay();
+
+    if (me.balloonBossEliminated) {
+      me.balloonBossVelX = 0;
+      me.balloonBossVelY = 0;
+    }
+    if (balloonBossGameEnded) {
+      for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+        balloonBossHitFx[hi].t -= dt;
+        if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+      }
+      return;
+    }
+    const remSec = balloonBossRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endBalloonBossGame('time');
+      return;
+    }
+    if (teamDmg >= maxHp) {
+      endBalloonBossGame('victory');
+      return;
+    }
+
+    for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+      balloonBossHitFx[hi].t -= dt;
+      if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+    }
+
+    const aliveRefs = buildBalloonBossParticipantRefsPlay().filter((e) => e.ref && !e.ref.balloonBossEliminated);
+
+    for (let pi = balloonBossPendingShots.length - 1; pi >= 0; pi--) {
+      const pnd = balloonBossPendingShots[pi];
+      if (now >= pnd.releaseAt) {
+        balloonBossPlayerBullets.push({ x: pnd.sx, y: pnd.sy, vx: pnd.vx, vy: pnd.vy, ownerId: pnd.ownerId });
+        balloonBossPendingShots.splice(pi, 1);
+      }
+    }
+
+    const bossFireEvery = 0.92;
+    balloonBossBossFireAcc += dt;
+    while (balloonBossBossFireAcc >= bossFireEvery) {
+      balloonBossBossFireAcc -= bossFireEvery;
+      if (aliveRefs.length) {
+        const wave = Math.floor(now / 1000);
+        const tgt = aliveRefs[wave % aliveRefs.length].ref;
+        if (tgt && tgt.balloonBossCx != null) {
+          const dx = tgt.balloonBossCx - bossC.cx, dy = tgt.balloonBossCy - bossC.cy;
+          const d = Math.sqrt(dx * dx + dy * dy) || 1;
+          const spd = 290;
+          balloonBossBossBullets.push({ x: bossC.cx, y: bossC.cy, vx: (dx / d) * spd, vy: (dy / d) * spd });
+        }
+      }
+    }
+
+    function applyBalloonBossHitToEntity(ent) {
+      if (!ent || ent.balloonBossEliminated) return;
+      if (ent.balloonBossHitIframe > now) return;
+      ent.balloonBossHitIframe = now + 520;
+      ent.balloonBossBalloons = Math.max(0, (ent.balloonBossBalloons | 0) - 1);
+      if (ent.balloonBossBalloons <= 0) {
+        ent.balloonBossEliminated = true;
+        ent.balloonBossBalloons = 0;
+      }
+      if (ent === me && socket) {
+        socket.emit('move', {
+          x: me.x, y: me.y, direction: me.direction,
+          balloonBossBalloons: me.balloonBossBalloons,
+          balloonBossEliminated: !!me.balloonBossEliminated,
+          balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        });
+      }
+    }
+
+    for (let bi = balloonBossBossBullets.length - 1; bi >= 0; bi--) {
+      const b = balloonBossBossBullets[bi];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -80 || b.x > mw + 80 || b.y < -80 || b.y > mh + 80) {
+        balloonBossBossBullets.splice(bi, 1);
+        continue;
+      }
+      let hit = false;
+      aliveRefs.forEach((entry) => {
+        if (hit) return;
+        const ent = entry.ref;
+        if (!ent || ent.balloonBossCx == null) return;
+        const dx = b.x - ent.balloonBossCx, dy = b.y - ent.balloonBossCy;
+        if (dx * dx + dy * dy <= (26 * 26)) {
+          hit = true;
+          applyBalloonBossHitToEntity(ent);
+        }
+      });
+      if (hit) balloonBossBossBullets.splice(bi, 1);
+    }
+
+    for (let i = balloonBossPlayerBullets.length - 1; i >= 0; i--) {
+      const b = balloonBossPlayerBullets[i];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -60 || b.x > mw + 60 || b.y < -60 || b.y > mh + 60) {
+        balloonBossPlayerBullets.splice(i, 1);
+        continue;
+      }
+      const dx = b.x - bossC.cx, dy = b.y - bossC.cy;
+      if (dx * dx + dy * dy <= bossR * bossR) {
+        balloonBossHitFx.push({ x: bossC.cx, y: bossC.cy, t: 0.22 });
+        const add = 1;
+        if (b.ownerId === myId) {
+          me.balloonBossScore = Math.max(0, (me.balloonBossScore | 0) + add);
+        } else {
+          const o = others.get(b.ownerId);
+          if (o) o.balloonBossScore = Math.max(0, (o.balloonBossScore | 0) + add);
+        }
+        balloonBossPlayerBullets.splice(i, 1);
+      }
+    }
+
+    let inX = 0, inY = 0;
+    if (!me.balloonBossEliminated && !isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) inX -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) inX += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) inY -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) inY += 1;
+    }
+    const accel = balloonBossShipAccelPlay();
+    const maxSpd = balloonBossShipMaxSpeedPlay();
+    const dragPerSec = balloonBossShipDragPlay();
+    if (typeof me.balloonBossVelX !== 'number' || !Number.isFinite(me.balloonBossVelX)) me.balloonBossVelX = 0;
+    if (typeof me.balloonBossVelY !== 'number' || !Number.isFinite(me.balloonBossVelY)) me.balloonBossVelY = 0;
+    let nvx = me.balloonBossVelX;
+    let nvy = me.balloonBossVelY;
+    if (inX !== 0 || inY !== 0) {
+      const il = Math.sqrt(inX * inX + inY * inY) || 1;
+      nvx += (inX / il) * accel * dt;
+      nvy += (inY / il) * accel * dt;
+    }
+    const drag = Math.min(1, dragPerSec * dt);
+    nvx *= (1 - drag);
+    nvy *= (1 - drag);
+    const curSpd = Math.sqrt(nvx * nvx + nvy * nvy);
+    if (curSpd > maxSpd) {
+      const s = maxSpd / curSpd;
+      nvx *= s;
+      nvy *= s;
+    }
+    me.balloonBossVelX = nvx;
+    me.balloonBossVelY = nvy;
+    if (!me.balloonBossEliminated && me.balloonBossCx != null) {
+      const ncx = me.balloonBossCx + nvx * dt;
+      const ncy = me.balloonBossCy + nvy * dt;
+      const cl = clampBalloonBossWorld(ncx, ncy, mw, mh);
+      if (Math.abs(cl.cx - ncx) > 0.5) me.balloonBossVelX = 0;
+      if (Math.abs(cl.cy - ncy) > 0.5) me.balloonBossVelY = 0;
+      me.balloonBossCx = cl.cx;
+      me.balloonBossCy = cl.cy;
+    }
+    syncBalloonBossFootFromCenter(me);
+    me.direction = 'up';
+    me.isWalking = Math.abs(me.balloonBossVelX) > 8 || Math.abs(me.balloonBossVelY) > 8 || inX !== 0 || inY !== 0;
+
+    balloonBossPlayerFireCd -= dt;
+    const wantFire = !isChatFocused() && !!keys['Space'] && !me.balloonBossEliminated;
+    if (wantFire && balloonBossPlayerFireCd <= 0 && me.balloonBossCy != null) {
+      balloonBossPlayerFireCd = 0.35;
+      const delayMs = balloonBossFireDelayMsPlay();
+      const dx = bossC.cx - me.balloonBossCx, dy = bossC.cy - me.balloonBossCy;
+      const d = Math.sqrt(dx * dx + dy * dy) || 1;
+      balloonBossPendingShots.push({
+        releaseAt: now + delayMs,
+        sx: me.balloonBossCx, sy: me.balloonBossCy,
+        vx: (dx / d) * 480, vy: (dy / d) * 480,
+        ownerId: myId,
+      });
+    }
+
+    stepBalloonBossPreviewBots(dt, mw, mh, bossC.cx, bossC.cy, ts);
+
+    const tEmit = Date.now();
+    if (tEmit - balloonBossLastMoveEmit > 95 && socket && myId != null) {
+      balloonBossLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        balloonBossBalloons: Math.max(0, me.balloonBossBalloons | 0),
+        balloonBossEliminated: !!me.balloonBossEliminated,
+      });
+    }
+  }
+
+  function drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isBalloonBoss()) return;
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const mw = w * ts, mh = h * ts;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const maxHp = balloonBossMaxHpPlay();
+    const dmg = balloonBossTeamDamagePlay();
+    const hpLeft = Math.max(0, maxHp - dmg);
+    const bossR = Math.max(36, ts * 1.15);
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const leaderId = (() => {
+      let best = null, bs = -1;
+      refs.forEach((e) => {
+        const sc = Math.max(0, e.ref.balloonBossScore | 0);
+        if (sc > bs) { bs = sc; best = e.id; }
+      });
+      return best;
+    })();
+
+    for (let hi = 0; hi < balloonBossHitFx.length; hi++) {
+      const fx = balloonBossHitFx[hi];
+      const [hx, hy] = worldToScreen(fx.x, fx.y);
+      const pulse = 1 + (fx.t || 0) * 3;
+      ctx.save();
+      ctx.globalAlpha = Math.min(1, (fx.t || 0) * 4);
+      ctx.strokeStyle = 'rgba(255, 220, 120, 0.9)';
+      ctx.lineWidth = 3 * zDraw;
+      ctx.beginPath();
+      ctx.arc(hx, hy, bossR * zDraw * 0.5 * pulse, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.restore();
+    }
+
+    const [bsx, bsy] = worldToScreen(bossC.cx, bossC.cy);
+    ctx.save();
+    ctx.translate(bsx, bsy);
+    ctx.strokeStyle = 'rgba(0, 255, 255, 0.75)';
+    ctx.lineWidth = Math.max(2, 2.5 * zDraw);
+    ctx.beginPath();
+    for (let k = 0; k < 6; k++) {
+      const ang = (k / 6) * Math.PI * 2 - Math.PI / 2;
+      const px = Math.cos(ang) * bossR * zDraw * 1.05;
+      const py = Math.sin(ang) * bossR * zDraw * 1.05;
+      if (k === 0) ctx.moveTo(px, py);
+      else ctx.lineTo(px, py);
+    }
+    ctx.closePath();
+    ctx.stroke();
+    ctx.fillStyle = 'rgba(0, 40, 60, 0.35)';
+    ctx.fill();
+
+    const skullR = bossR * zDraw * 0.62;
+    const grd = ctx.createRadialGradient(-skullR * 0.2, -skullR * 0.25, skullR * 0.1, 0, 0, skullR);
+    grd.addColorStop(0, 'rgba(55, 50, 62, 0.98)');
+    grd.addColorStop(1, 'rgba(22, 18, 30, 1)');
+    ctx.fillStyle = grd;
+    ctx.beginPath();
+    ctx.arc(0, 0, skullR, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = 'rgba(255, 40, 60, 0.95)';
+    ctx.shadowColor = 'rgba(255, 0, 0, 0.8)';
+    ctx.shadowBlur = 12 * zDraw;
+    ctx.beginPath();
+    ctx.arc(-skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.arc(skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.shadowBlur = 0;
+
+    ctx.fillStyle = 'rgba(255, 100, 200, 0.9)';
+    ctx.font = `bold ${Math.max(10, 11 * zDraw)}px ui-monospace, monospace`;
+    ctx.textAlign = 'center';
+    ctx.fillText('MEGA VIRUS : [ ' + hpLeft + ' / ' + maxHp + ' ]', 0, -bossR * zDraw - 14);
+    const barW = bossR * zDraw * 2.2;
+    const barH = Math.max(5, 6 * zDraw);
+    ctx.fillStyle = 'rgba(0,0,0,0.55)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.fillStyle = 'rgba(255, 80, 200, 0.85)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW * (hpLeft / maxHp), barH);
+    ctx.strokeStyle = 'rgba(180, 255, 255, 0.5)';
+    ctx.strokeRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.restore();
+
+    function drawBalloonsCluster(sx, sy, count, col, z) {
+      const n = Math.max(0, Math.min(8, count | 0));
+      for (let b = 0; b < n; b++) {
+        const ox = (b - (n - 1) / 2) * 7 * z;
+        const oy = -18 * z - Math.abs(b - (n - 1) / 2) * 2 * z;
+        ctx.fillStyle = col;
+        ctx.beginPath();
+        ctx.ellipse(sx + ox, sy + oy, 6.5 * z, 8 * z, 0, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = 'rgba(255,255,255,0.35)';
+        ctx.lineWidth = 1;
+        ctx.stroke();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+      const [sx, sy] = worldToScreen(ent.balloonBossCx, ent.balloonBossCy);
+      const col = BALLOON_BOSS_PLAYER_COLORS[idx % BALLOON_BOSS_PLAYER_COLORS.length];
+      const z = zDraw;
+      ctx.save();
+      if (ent.balloonBossEliminated) ctx.globalAlpha = 0.38;
+      ctx.strokeStyle = 'rgba(255, 255, 255, 0.65)';
+      ctx.lineWidth = Math.max(1.2, 1.5 * z);
+      ctx.beginPath();
+      ctx.arc(sx, sy, 22 * z, 0, Math.PI * 2);
+      ctx.stroke();
+      drawBalloonsCluster(sx, sy, ent.balloonBossBalloons | 0, col, z);
+      const nm = String(ent.nickname || '').slice(0, 12);
+      ctx.font = `${Math.max(9, 10 * z)}px system-ui, "Kanit", sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = 'rgba(248, 250, 252, 0.95)';
+      ctx.strokeStyle = 'rgba(0, 10, 30, 0.85)';
+      ctx.lineWidth = 3;
+      let label = nm;
+      if (entry.id === leaderId && leaderId != null) label = '♔ ' + nm;
+      ctx.strokeText(label, sx, sy + 28 * z);
+      ctx.fillText(label, sx, sy + 28 * z);
+      const charImg = getPlayTintedAvatarSource(
+        getAvatarImg(ent.characterId, 'up', timeMs, !!ent.isWalking),
+        ent.characterId, 'up', timeMs, !!ent.isWalking,
+        ent.playTint || playTintFromPeerId(entry.id)
+      );
+      const size = 26 * z;
+      if (charImg && ((charImg.tagName === 'CANVAS' && charImg.width > 0) || (charImg.complete && charImg.naturalWidth))) {
+        const iw = charImg.tagName === 'CANVAS' ? charImg.width : charImg.naturalWidth;
+        const ih = charImg.tagName === 'CANVAS' ? charImg.height : charImg.naturalHeight;
+        const sc = Math.min(size / iw, size / ih, 1);
+        const dw = iw * sc, dh = ih * sc;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - dw / 2, sy - dh + 4 * z, dw, dh);
+      } else {
+        ctx.fillStyle = col;
+        ctx.fillRect(sx - 10 * z, sy - 18 * z, 20 * z, 22 * z);
+      }
+      ctx.restore();
+    });
+
+    for (let i = 0; i < balloonBossPlayerBullets.length; i++) {
+      const b = balloonBossPlayerBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.save();
+      ctx.translate(bx, by);
+      ctx.rotate(Math.atan2(b.vy, b.vx) + Math.PI / 2);
+      ctx.fillStyle = 'rgba(255, 255, 255, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(0, -8 * zDraw);
+      ctx.lineTo(-5 * zDraw, 6 * zDraw);
+      ctx.lineTo(5 * zDraw, 6 * zDraw);
+      ctx.closePath();
+      ctx.fill();
+      ctx.fillStyle = 'rgba(0, 255, 200, 0.5)';
+      ctx.font = `${Math.max(7, 8 * zDraw)}px monospace`;
+      ctx.textAlign = 'center';
+      ctx.fillText('01001', 0, 12 * zDraw);
+      ctx.restore();
+    }
+    for (let i = 0; i < balloonBossBossBullets.length; i++) {
+      const b = balloonBossBossBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.fillStyle = 'rgba(255, 60, 120, 0.92)';
+      ctx.beginPath();
+      ctx.arc(bx, by, Math.max(3, 4.5 * zDraw), 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 200, 255, 0.6)';
+      ctx.stroke();
+    }
+  }
+
+  function jumpSurviveCollectPlatformCells(md) {
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    const out = [];
+    if (!pa) return out;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (pa[y] && pa[y][x] === 1) out.push({ x, y });
+      }
+    }
+    return out;
+  }
+
+  /** ความสูงแมปเป็นคาบวนของแพลตฟอร์ม — แถวที่เลื่อนออกบนจะวนมาโผล่ล่าง */
+  function jumpSurvivePlatformPeriodPx(md) {
+    return (md.height || 15) * tileSize;
+  }
+
+  /**
+   * ยืนบนหน้าแพลตฟอร์มช่อง (tx,ty) — เลือกชั้น k ที่ใกล้ hintY (กล้อง / กลางแมป)
+   */
+  function jumpSurviveGridPosStandingOnPlatform(md, tx, ty, scrollPx) {
+    const ts = tileSize;
+    const h = md.height || 15;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const rawTop = ty * ts - scrollPx;
+    const hintY = (jumpSurviveCamCenterY > 1)
+      ? jumpSurviveCamCenterY
+      : h * ts * 0.72;
+    const k = Math.round((hintY - rawTop - ts * 0.35) / period);
+    const platTop = rawTop + k * period;
+    const feetY = platTop;
+    const pxc = (tx + 0.5) * ts;
+    return {
+      x: pxc / ts - cw * 0.5,
+      y: feetY / ts - ch,
+    };
+  }
+
+  function jumpSurviveGridPosFromTileCenter(md, tx, ty) {
+    return jumpSurviveGridPosStandingOnPlatform(md, tx, ty, 0);
+  }
+
+  function jumpSurviveRandomStandGridPos(md) {
+    const cells = jumpSurviveCollectPlatformCells(md);
+    const sc = jumpSurvivePlatformScrollPx;
+    if (cells.length) {
+      const c = cells[Math.floor(Math.random() * cells.length)];
+      return jumpSurviveGridPosStandingOnPlatform(md, c.x, c.y, sc);
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return jumpSurviveGridPosStandingOnPlatform(md, Number(sp.x) || 1, Number(sp.y) || 1, sc);
+  }
+
+  /** ทดสอบจากเอดิเตอร์: วางคน+บอทบนแพลตฟอร์ม (ไม่ให้เกิดบน spawnArea บนฟ้าแล้วลอย) */
+  function applyJumpSurvivePreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'jump_survive') return;
+    const cells = jumpSurviveCollectPlatformCells(mapData);
+    cells.sort((a, b) => b.y - a.y || a.x - b.x);
+    const sc = jumpSurvivePlatformScrollPx;
+    const pool = cells.length
+      ? cells.map((c) => jumpSurviveGridPosStandingOnPlatform(mapData, c.x, c.y, sc))
+      : [jumpSurviveGridPosStandingOnPlatform(mapData, Number(mapData.spawn && mapData.spawn.x) || 1, Number(mapData.spawn && mapData.spawn.y) || 1, sc)];
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+
+    function stampJumpBotState(o) {
+      if (!o) return;
+      o.jumpSurviveVy = 0;
+      o.jumpSurviveOnGround = true;
+      o.jumpSurviveEliminated = false;
+      o.tx = o.x;
+      o.ty = o.y;
+    }
+
+    if (onlyBots) {
+      let idx = 1 + realIds.length;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || !pool.length) return;
+        const p = pool[idx % pool.length];
+        idx++;
+        o.x = p.x + (Math.random() - 0.5) * 0.08;
+        o.y = p.y + (Math.random() - 0.5) * 0.08;
+        stampJumpBotState(o);
+      });
+      return;
+    }
+
+    let idx = 0;
+    function assignEnt(ent) {
+      if (!ent || !pool.length) return;
+      const p = pool[idx % pool.length];
+      idx++;
+      ent.x = p.x + (Math.random() - 0.5) * 0.08;
+      ent.y = p.y + (Math.random() - 0.5) * 0.08;
+      stampJumpBotState(ent);
+    }
+    assignEnt(me);
+    realIds.forEach((rid) => assignEnt(others.get(rid)));
+    botIds.forEach((bid) => assignEnt(others.get(bid)));
+    jumpSurviveInitRuntime();
+  }
+
+  /**
+   * ฟิสิกส์กระโดดร่วม (ผู้เล่น + บอท preview)
+   * @returns {{ pxc: number, feetY: number, vy: number, onGround: boolean, died: boolean }}
+   */
+  function jumpSurvivePhysicsIntegrate(md, opts) {
+    const {
+      dt,
+      cw, ch,
+      pxc0, feetY0, vy0, wasOnGround,
+      jumpQueued,
+      moveLeft, moveRight,
+      camCenterY,
+      halfViewH,
+    } = opts;
+    const w = md.width || 20, h = md.height || 15;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const bh = ts * 0.9;
+    let pxc = pxc0;
+    let feetY = feetY0;
+    let vy = vy0;
+    let onGround = wasOnGround;
+
+    const gFull = Number(md.jumpSurviveGravity) > 0 ? Number(md.jumpSurviveGravity) : 3200;
+    const g = gFull * dt;
+    let jumpV0;
+    if (Number(md.jumpSurviveJumpImpulse) > 0) {
+      jumpV0 = -Number(md.jumpSurviveJumpImpulse);
+    } else {
+      const mult = (typeof playJumpSurviveJumpHeightMult === 'number' && playJumpSurviveJumpHeightMult > 0)
+        ? playJumpSurviveJumpHeightMult
+        : 1.5;
+      const charHpixels = ch * ts;
+      const impulse = Math.sqrt(Math.max(1e-6, 2 * gFull * mult * charHpixels));
+      jumpV0 = -Math.min(impulse, ts * 36);
+    }
+    let moveX = (Number(md.jumpSurviveMovePxPerSec) > 0 ? Number(md.jumpSurviveMovePxPerSec) : 200) * dt;
+    if (isJumpSurviveMissionUiMapPlay()) moveX *= 1.35;
+
+    if (jumpQueued && onGround) {
+      vy = jumpV0;
+      onGround = false;
+    }
+    vy += g;
+
+    let nx = pxc;
+    if (moveLeft) nx -= moveX;
+    if (moveRight) nx += moveX;
+    nx = Math.max(bw + 1, Math.min(w * ts - bw - 1, nx));
+
+    const headY0 = feetY - bh;
+    const tryL = nx - bw;
+    const tryR = nx + bw;
+    if (!jumpSurviveOverlapsSolidForHorzMove(md, tryL, headY0, tryR, feetY)) {
+      pxc = nx;
+    }
+
+    feetY += vy * dt;
+    let headTop = feetY - bh;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+      if (vy > 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY -= ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            onGround = true;
+            break;
+          }
+        }
+      } else if (vy < 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY += ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            break;
+          }
+        }
+      }
+    } else {
+      onGround = false;
+    }
+
+    headTop = feetY - bh;
+    const headBandBottom = headTop + bh * 0.42;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY) &&
+        jumpSurviveOverlapsObjectWall(md, pxc - bw, headTop, pxc + bw, headBandBottom)) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    headTop = feetY - bh;
+    const topKill = camCenterY - halfViewH - ts * 0.35;
+    const botKill = camCenterY + halfViewH + ts * 0.85;
+    if (feetY < topKill || feetY > botKill || headTop < -ts * 2) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    return { pxc, feetY, vy, onGround, died: false };
+  }
+
+  function jumpSurviveEntityFromHitbox(o, md, pxc, feetYpx) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    o.x = pxc / tileSize - cw * 0.5;
+    o.y = feetYpx / tileSize - ch;
+  }
+
+  function jumpSurviveInitRuntime() {
+    jumpSurviveLastTickMs = performance.now();
+    jumpSurviveSessionStartMs = performance.now();
+    jumpSurviveVy = 0;
+    jumpSurviveJumpQueued = false;
+    jumpSurviveOnGround = false;
+    jumpSurvivePlatformScrollPx = 0;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      const w = mapData.width || 20, h = mapData.height || 15;
+      jumpSurviveCamCenterX = (w * ts) * 0.5;
+      jumpSurviveCamCenterY = (h * ts) * 0.5;
+    } else {
+      jumpSurviveCamCenterX = (me.x + cw * 0.5) * ts;
+      jumpSurviveCamCenterY = (me.y + ch * 0.5) * ts;
+    }
+  }
+
+  function jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty >= h) return true;
+        if (ty < 0) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    if (!pa) return false;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    if (period < ts) return false;
+    const x0 = Math.max(0, Math.floor(left / ts));
+    const x1 = Math.min(w - 1, Math.floor((right - 1e-6) / ts));
+    const vm = ts * 2;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (!pa[ty] || pa[ty][tx] !== 1) continue;
+        const rawTop = ty * ts - scrollPx;
+        const kMin = Math.ceil((top - rawTop - ts - vm) / period);
+        const kMax = Math.floor((bottom - rawTop + vm) / period);
+        for (let k = kMin; k <= kMax; k++) {
+          const platTop = rawTop + k * period;
+          const platBot = platTop + ts;
+          const tileLeft = tx * ts;
+          const tileRight = (tx + 1) * ts;
+          if (platBot > top && platTop < bottom && right > tileLeft && left < tileRight) return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsSolid(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /**
+   * ชนแนวนอน: objects เต็มกล่อง; แพลตฟอร์มไม่นับช่วงปลายเท้าเล็กน้อย
+   * (ถ้าใช้กล่องเต็มกับแพลตฟอร์ม ขณะยืนบนแพลตฟอร์มมักทับช่องแนวตั้ง — เดินซ้ายขวาถูกปฏิเสธทั้งก้อน)
+   */
+  function jumpSurviveOverlapsSolidForHorzMove(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    const ts = tileSize;
+    const footSlop = ts * 0.16;
+    const platformBottom = bottom - footSlop;
+    if (platformBottom <= top + ts * 0.05) return false;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, platformBottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /** Head/body overlaps กำแพง (objects=1) เท่านั้น — ใช้ตรวจชนฝาบนแล้วตาย */
+  function jumpSurviveOverlapsObjectWall(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty < 0 || ty >= h) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveSyncMeFromHitbox(pxc, feetYpx) {
+    jumpSurviveEntityFromHitbox(me, mapData, pxc, feetYpx);
+  }
+
+  function jumpSurviveCameraTargetPx(md) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      return { px: (w * ts) * 0.5, py: (h * ts) * 0.5 };
+    }
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const cx = (e) => (e.x + cw * 0.5) * ts;
+    const cy = (e) => (e.y + ch * 0.5) * ts;
+    if (!jumpSurviveEliminated) return { px: cx(me), py: cy(me) };
+    const aliveHumanIds = [...others.keys()].filter((id) => {
+      if (isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const aliveBotIds = [...others.keys()].filter((id) => {
+      if (!isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const useIds = aliveHumanIds.length ? aliveHumanIds : aliveBotIds;
+    if (!useIds.length) return { px: cx(me), py: cy(me) };
+    let sx = 0, sy = 0;
+    useIds.forEach((id) => {
+      const o = others.get(id);
+      if (!o) return;
+      sx += cx(o);
+      sy += cy(o);
+    });
+    const n = useIds.length;
+    return { px: sx / n, py: sy / n };
+  }
+
+  /** มีแพลตฟอร์มใต้จุดเล็กน้อยข้างหน้าแนว wishDir หรือไม่ — กันบอทเดินหลุมแล้วตกจอ */
+  function jumpSurviveBotHasFloorAhead(md, pxc, feetY, wishDir, scrollPx) {
+    if (!wishDir) return true;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const probeX = pxc + wishDir * (bw + ts * 0.82);
+    const pad = ts * 0.24;
+    const left = probeX - pad;
+    const right = probeX + pad;
+    const top = feetY - ts * 0.45;
+    const bottom = feetY + ts * 8;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx);
+  }
+
+  function stepJumpSurvivePreviewBots(dt, halfViewH) {
+    if (!previewFillBots || !mapData || !isJumpSurvive()) return;
+    const md = mapData;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const ts = tileSize;
+    const wpx = (md.width || 20) * ts;
+    const centerPx = wpx * 0.5;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (o.jumpSurviveEliminated) return;
+      if (typeof o.jumpSurviveVy !== 'number') o.jumpSurviveVy = 0;
+      if (o.jumpSurviveOnGround == null) o.jumpSurviveOnGround = false;
+      if (typeof o.jumpSurviveNextJumpAi !== 'number') o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * 500);
+      if (typeof o.jumpSurviveWishNext !== 'number') o.jumpSurviveWishNext = Date.now() + 200;
+      if (o.jumpSurviveWishX == null) o.jumpSurviveWishX = 0;
+
+      let pxc = (o.x + cw * 0.5) * ts;
+      let feetY = (o.y + ch) * ts;
+
+      const camCy = jumpSurviveCamCenterY;
+      const mission = isJumpSurviveMissionUiMapPlay();
+      const lowDanger = feetY > camCy + halfViewH - ts * 8.5;
+
+      if (Date.now() >= o.jumpSurviveWishNext) {
+        const wMin = mission && lowDanger ? 180 : 380;
+        const wSpan = mission && lowDanger ? 480 : 700;
+        o.jumpSurviveWishNext = Date.now() + wMin + Math.floor(Math.random() * wSpan);
+        const tier = o.botTier || 'avg';
+        if (mission && lowDanger && Math.random() < 0.55) {
+          o.jumpSurviveWishX = 0;
+        } else if (pxc < centerPx - ts * 1.8) o.jumpSurviveWishX = 1;
+        else if (pxc > centerPx + ts * 1.8) o.jumpSurviveWishX = -1;
+        else if (tier === 'sharp') {
+          const roam = mission ? 0.42 : 0.55;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        } else {
+          const roam = mission ? 0.28 : 0.4;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        }
+      }
+
+      let moveLeft = o.jumpSurviveWishX < 0;
+      let moveRight = o.jumpSurviveWishX > 0;
+      let hazardJump = false;
+      if (o.jumpSurviveOnGround) {
+        const sc = jumpSurvivePlatformScrollPx;
+        if (moveRight && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, 1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? -1 : 0;
+          hazardJump = true;
+        } else if (moveLeft && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, -1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? 1 : 0;
+          hazardJump = true;
+        }
+        moveLeft = o.jumpSurviveWishX < 0;
+        moveRight = o.jumpSurviveWishX > 0;
+      }
+
+      let jumpQ = false;
+      if (hazardJump) o.jumpSurviveNextJumpAi = Math.min(o.jumpSurviveNextJumpAi, Date.now());
+      if (o.jumpSurviveOnGround && Date.now() >= o.jumpSurviveNextJumpAi) {
+        o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * (hazardJump ? 520 : 1100));
+        const tier = o.botTier || 'avg';
+        let jp = tier === 'sharp' ? 0.5 : tier === 'weak' ? 0.25 : 0.36;
+        if (mission) jp += 0.12;
+        if (lowDanger) jp += 0.22;
+        jp = Math.min(0.9, jp);
+        if (hazardJump || Math.random() < jp) jumpQ = true;
+      }
+
+      const r = jumpSurvivePhysicsIntegrate(md, {
+        dt,
+        cw,
+        ch,
+        pxc0: pxc,
+        feetY0: feetY,
+        vy0: o.jumpSurviveVy,
+        wasOnGround: o.jumpSurviveOnGround,
+        jumpQueued: jumpQ,
+        moveLeft,
+        moveRight,
+        camCenterY: jumpSurviveCamCenterY,
+        halfViewH,
+      });
+
+      if (r.died) {
+        o.jumpSurviveEliminated = true;
+        o.jumpSurviveVy = 0;
+        jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+        o.tx = o.x;
+        o.ty = o.y;
+        o.botIsWalking = false;
+        return;
+      }
+      o.jumpSurviveVy = r.vy;
+      o.jumpSurviveOnGround = r.onGround;
+      jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (moveRight) o.direction = 'right';
+      else if (moveLeft) o.direction = 'left';
+      o.botIsWalking = Math.abs(r.vy) > 40 || moveLeft || moveRight;
+    });
+  }
+
+  function jumpSurviveTickFrame() {
+    if (!mapData || !isJumpSurvive()) return;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+      const remEnd = jumpSurviveRemainingSecMission();
+      if (remEnd !== null && remEnd <= 0) {
+        endJumpSurviveMissionRound();
+        return;
+      }
+    }
+    const md = mapData;
+    const ts = tileSize;
+    const now = performance.now();
+    const dt = Math.min(0.05, Math.max(0, (now - jumpSurviveLastTickMs) / 1000));
+    jumpSurviveLastTickMs = now;
+
+    const halfViewH = canvas.height / (2 * zoom);
+    const rise = (Number(md.jumpSurviveRisePxPerSec) > 0 ? Number(md.jumpSurviveRisePxPerSec) : 42) * dt;
+    jumpSurvivePlatformScrollPx += rise;
+
+    const camTgt = jumpSurviveCameraTargetPx(md);
+    const ck = Math.min(1, dt * 7);
+    jumpSurviveCamCenterX += (camTgt.px - jumpSurviveCamCenterX) * ck;
+    jumpSurviveCamCenterY += (camTgt.py - jumpSurviveCamCenterY) * ck;
+
+    if (jumpSurviveEliminated) {
+      stepJumpSurvivePreviewBots(dt, halfViewH);
+      jumpSurviveMissionMaybeEarlyFinish();
+      return;
+    }
+
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let pxc = (me.x + cw * 0.5) * ts;
+    let feetY = (me.y + ch) * ts;
+
+    const jq = jumpSurviveJumpQueued;
+    jumpSurviveJumpQueued = false;
+
+    const r = jumpSurvivePhysicsIntegrate(md, {
+      dt,
+      cw,
+      ch,
+      pxc0: pxc,
+      feetY0: feetY,
+      vy0: jumpSurviveVy,
+      wasOnGround: jumpSurviveOnGround,
+      jumpQueued: jq,
+      moveLeft: !!(keys['ArrowLeft'] || keys['KeyA']),
+      moveRight: !!(keys['ArrowRight'] || keys['KeyD']),
+      camCenterY: jumpSurviveCamCenterY,
+      halfViewH,
+    });
+
+    if (r.died) {
+      jumpSurviveEliminated = true;
+      jumpSurviveVy = 0;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+      ['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown', 'KeyA', 'KeyW', 'KeyS', 'KeyD'].forEach((c) => { keys[c] = false; });
+    } else {
+      jumpSurviveVy = r.vy;
+      jumpSurviveOnGround = r.onGround;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+    }
+
+    stepJumpSurvivePreviewBots(dt, halfViewH);
+
+    if (!jumpSurviveEliminated) {
+      me.isWalking = Math.abs(jumpSurviveVy) > 40 || !!(keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD']);
+      if (keys['ArrowRight'] || keys['KeyD']) me.direction = 'right';
+      else if (keys['ArrowLeft'] || keys['KeyA']) me.direction = 'left';
+
+      if (Date.now() - jumpSurviveLastEmitT > 80) {
+        jumpSurviveLastEmitT = Date.now();
+        socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+      }
+    }
+
+    jumpSurviveMissionMaybeEarlyFinish();
+  }
+
+  function gridImageLibIdleUrlPlay(entry) {
+    if (entry == null) return '';
+    if (typeof entry === 'string') return entry;
+    if (typeof entry === 'object' && entry.idle) return String(entry.idle);
+    return '';
+  }
+  function gridImageLibHeldUrlPlay(entry) {
+    if (entry == null || typeof entry === 'string') return '';
+    if (typeof entry === 'object' && entry.held && String(entry.held).length) return String(entry.held);
+    return '';
+  }
+
+  function normalizeGridImageCellsOnMap(md) {
+    if (!md) return;
+    const w = md.width || 20, h = md.height || 15;
+    if (!Array.isArray(md.gridImageLibrary)) md.gridImageLibrary = [];
+    md.gridImageLibrary = md.gridImageLibrary
+      .map((raw) => {
+        if (typeof raw === 'string' && raw.length > 0 && raw.length < 30000000) return { idle: raw, held: null };
+        if (raw && typeof raw === 'object' && typeof raw.idle === 'string' && raw.idle.length > 0 && raw.idle.length < 30000000) {
+          let held = typeof raw.held === 'string' && raw.held.length > 0 && raw.held.length < 30000000 ? raw.held : null;
+          if (held && held === raw.idle) held = null;
+          return { idle: raw.idle, held };
+        }
+        return null;
+      })
+      .filter(Boolean);
+    const libLen = md.gridImageLibrary.length;
+    let placements = [];
+    if (Array.isArray(md.gridImageSprites) && md.gridImageSprites.length) {
+      placements = md.gridImageSprites.map((raw) => {
+        const i = Math.max(0, Math.floor(Number(raw.i)));
+        const x = Math.floor(Number(raw.x));
+        const y = Math.floor(Number(raw.y));
+        const ww = Math.max(1, Math.floor(Number(raw.w)) || 1);
+        const hh = Math.max(1, Math.floor(Number(raw.h)) || 1);
+        const rawB = raw.bindCarryOption;
+        const bn = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+        const base = { i, x, y, w: ww, h: hh };
+        if (Number.isFinite(bn) && bn >= 1 && bn <= QUIZ_CARRY_MAX_OPTION_SLOTS) base.bindCarryOption = bn;
+        return base;
+      }).filter((s) => Number.isFinite(s.i) && s.i >= 0 && s.i < libLen &&
+        Number.isFinite(s.x) && Number.isFinite(s.y) && s.w >= 1 && s.h >= 1 &&
+        s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+      placements = placements.map((s) => {
+        let x = s.x, y = s.y, ww = s.w, hh = s.h;
+        if (x < 0) { ww += x; x = 0; }
+        if (y < 0) { hh += y; y = 0; }
+        if (x + ww > w) ww = w - x;
+        if (y + hh > h) hh = h - y;
+        const out = { i: s.i, x, y, w: Math.max(1, ww), h: Math.max(1, hh) };
+        if (s.bindCarryOption != null) out.bindCarryOption = s.bindCarryOption;
+        return out;
+      }).filter((s) => s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+    } else {
+      const cells = md.gridImageCells;
+      if (Array.isArray(cells) && cells.length === h && libLen > 0) {
+        for (let yy = 0; yy < h; yy++) {
+          const row = cells[yy];
+          if (!row) continue;
+          for (let xx = 0; xx < w; xx++) {
+            if (row[xx] == null) continue;
+            const iv = parseInt(row[xx], 10);
+            if (!Number.isFinite(iv) || iv < 0 || iv >= libLen) continue;
+            placements.push({ i: iv, x: xx, y: yy, w: 1, h: 1 });
+          }
+        }
+      }
+    }
+    md.gridImagePlacements = placements;
+    const outCells = Array(h).fill(0).map(() => Array(w).fill(null));
+    placements.forEach((sp) => {
+      for (let yy = sp.y; yy < sp.y + sp.h; yy++) {
+        for (let xx = sp.x; xx < sp.x + sp.w; xx++) {
+          if (yy >= 0 && yy < h && xx >= 0 && xx < w) outCells[yy][xx] = sp.i;
+        }
+      }
+    });
+    md.gridImageCells = outCells;
+  }
+
+  function loadMapGridImages() {
+    mapGridImageImgs = [];
+    mapGridImageHeldImgs = [];
+    if (!mapData || !Array.isArray(mapData.gridImageLibrary) || !mapData.gridImageLibrary.length) return;
+    mapData.gridImageLibrary.forEach((entry, i) => {
+      mapGridImageImgs[i] = null;
+      mapGridImageHeldImgs[i] = null;
+      const idle = gridImageLibIdleUrlPlay(entry);
+      if (!idle) return;
+      const im = new Image();
+      im.onload = () => { try { draw(); } catch (e) {} };
+      im.onerror = () => {};
+      im.src = idle;
+      mapGridImageImgs[i] = im;
+      const held = gridImageLibHeldUrlPlay(entry);
+      if (held && held !== idle) {
+        const hm = new Image();
+        hm.onload = () => { try { draw(); } catch (e) {} };
+        hm.onerror = () => {};
+        hm.src = held;
+        mapGridImageHeldImgs[i] = hm;
+      }
+    });
+  }
+
+  /** โซนตัวเลือกที่ทับสไปรต์มากที่สุด — quiz_carry สลับรูป idle/held · ถ้าไม่ทับเลยลองขยายขอบ 1 ช่อง (มาร์กเกอร์ชิดขอบสไปรต์) */
+  function dominantQuizCarryOptionInSpriteRect(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !md.quizCarryOptionArea) return null;
+    const g = md.quizCarryOptionArea;
+    const mw = md.width || 20, mh = md.height || 15;
+    const bx = sp.x | 0, by = sp.y | 0, bw = sp.w | 0, bh = sp.h | 0;
+    const counts = new Map();
+    function addOverlapRect(x0, y0, ww, hh) {
+      for (let yy = y0; yy < y0 + hh; yy++) {
+        if (yy < 0 || yy >= mh) continue;
+        const row = g[yy];
+        if (!row) continue;
+        for (let xx = x0; xx < x0 + ww; xx++) {
+          if (xx < 0 || xx >= mw) continue;
+          const v = row[xx];
+          const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+          if (!Number.isFinite(n) || n < 1 || n > QUIZ_CARRY_MAX_OPTION_SLOTS) continue;
+          const idx = n - 1;
+          counts.set(idx, (counts.get(idx) || 0) + 1);
+        }
+      }
+    }
+    addOverlapRect(bx, by, bw, bh);
+    if (!counts.size) {
+      const pad = 1;
+      const x0 = Math.max(0, bx - pad);
+      const y0 = Math.max(0, by - pad);
+      const x1 = Math.min(mw, bx + bw + pad);
+      const y1 = Math.min(mh, by + bh + pad);
+      addOverlapRect(x0, y0, x1 - x0, y1 - y0);
+    }
+    if (!counts.size) return null;
+    let best = null;
+    let bestN = -1;
+    counts.forEach((n, k) => {
+      if (best == null || n > bestN || (n === bestN && k < best)) {
+        bestN = n;
+        best = k;
+      }
+    });
+    return best;
+  }
+
+  /** 0-based choice index สำหรับสลับ idle/held — ใช้ bindCarryOption จากแมปก่อน แล้วค่อยนับทับโซน */
+  function quizCarryOptionIndexForGridSprite(md, sp) {
+    if (!sp) return null;
+    const rawB = sp.bindCarryOption;
+    if (rawB != null && rawB !== '') {
+      const n = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+      if (Number.isFinite(n) && n >= 1 && n <= QUIZ_CARRY_MAX_OPTION_SLOTS) return n - 1;
+    }
+    return dominantQuizCarryOptionInSpriteRect(md, sp);
+  }
+
+  /** รูป held จากคลังกริดสำหรับข้อนี้ — ใช้วาดป้ายติดตัว (ไม่ผ่าน sanitize URL) */
+  function findQuizCarryGridHeldImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gh = mapGridImageHeldImgs[sp.i];
+      if (gh && gh.complete && gh.naturalWidth) return gh;
+    }
+    return null;
+  }
+
+  /** รูป idle จากคลังกริดสำหรับข้อนี้ — วาดบนป้ายตัวเลือกบนพื้นเมื่อไม่มีรูปจากคำถาม/ธีม */
+  function findQuizCarryGridIdleImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gid = mapGridImageImgs[sp.i];
+      if (gid && gid.complete && gid.naturalWidth) return gid;
+    }
+    return null;
+  }
+
+  function applyMapAndStart(gameMapData, res) {
+    const prevWasSpaceShooter = mapData && mapData.gameType === 'space_shooter';
+    const prevWasBalloonBoss = mapData && mapData.gameType === 'balloon_boss';
+    mapData = gameMapData;
+    if (res && res.mapId != null && String(res.mapId).trim() !== '') {
+      playSessionMapId = String(res.mapId).trim();
+    }
+    if (res && res.hostId != null) playHostId = res.hostId;
+    if (mapData.gameType !== 'space_shooter') {
+      spaceShooterGameEnded = false;
+      if (prevWasSpaceShooter) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (mapData.gameType !== 'balloon_boss') {
+      balloonBossGameEnded = false;
+      if (prevWasBalloonBoss) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+    if (!mapData.interactive) mapData.interactive = [];
+    if (mapData.gameType === 'quiz') {
+      if (!mapData.quizTrueArea) mapData.quizTrueArea = [];
+      if (!mapData.quizFalseArea) mapData.quizFalseArea = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+    }
+    if (mapData.gameType === 'stack') {
+      if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+      if (!mapData.stackLandArea) mapData.stackLandArea = [];
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      if (!mapData.quizCarryHubArea) mapData.quizCarryHubArea = [];
+      if (!mapData.quizCarryOptionArea) mapData.quizCarryOptionArea = [];
+      if (!mapData.carryEmbedCountdownArea) mapData.carryEmbedCountdownArea = [];
+      if (!mapData.quizQuestions) mapData.quizQuestions = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+      normalizeQuizCarryLayersInPlay(mapData);
+    }
+    if (mapData.gameType === 'quiz_battle') {
+      if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+      if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+      normalizeQuizBattlePathInPlay(mapData);
+      normalizeQuizBattleDomeInPlay(mapData);
+    }
+    tileSize = mapData.tileSize || 32;
+    mapBackgroundImg = null;
+    if (mapData.backgroundImage) {
+      mapBackgroundImg = new Image();
+      mapBackgroundImg.src = mapData.backgroundImage;
+    }
+    normalizeGridImageCellsOnMap(mapData);
+    loadMapGridImages();
+    var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+      : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+        : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+    var prevTag = previewMode ? '[ทดสอบ] ' : '';
+    document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+    const plist = Array.isArray(res.peers) ? res.peers : [];
+    const myPeer = plist.find(p => p.id === myId);
+    const myPos = peerXYFromJoin(myPeer, mapData.spawn);
+    me.x = myPos.x;
+    me.y = myPos.y;
+    if (isQuizCarry()) {
+      const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(me.x, me.y);
+      me.x = hubSnap.x;
+      me.y = hubSnap.y;
+    }
+    if (isQuizBattle()) {
+      const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+      me.x = pathSnap.x;
+      me.y = pathSnap.y;
+    }
+    me.direction = myPeer?.direction ?? 'down';
+    me.characterId = myPeer?.characterId || null;
+    meGauntletJumpTicks = typeof myPeer?.gauntletJumpTicks === 'number' ? myPeer.gauntletJumpTicks : 0;
+    meGauntletJumpVis = meGauntletJumpTicks;
+    {
+      const sc0 = Number(myPeer && myPeer.gauntletScore);
+      me.gauntletScore = Number.isFinite(sc0) ? Math.max(0, sc0) : 0;
+      me.gauntletEliminated = !!(myPeer && myPeer.gauntletEliminated);
+    }
+    {
+      const sh0 = Number(myPeer && myPeer.spaceShooterScore);
+      me.spaceShooterScore = Number.isFinite(sh0) ? Math.max(0, sh0) : 0;
+    }
+    {
+      const bSt = balloonBossBalloonsStartPlay();
+      const bs0 = Number(myPeer && myPeer.balloonBossScore);
+      me.balloonBossScore = Number.isFinite(bs0) ? Math.max(0, bs0) : 0;
+      const bb0 = Number(myPeer && myPeer.balloonBossBalloons);
+      me.balloonBossBalloons = Number.isFinite(bb0) ? Math.max(0, Math.floor(bb0)) : bSt;
+      me.balloonBossEliminated = !!(myPeer && myPeer.balloonBossEliminated);
+    }
+    gauntletObstacles = [];
+    gauntletObsRenderPrev = [];
+    gauntletObsRenderNext = [];
+    gauntletObsBlendT0 = 0;
+    me.playTint = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+    others.clear();
+    plist.forEach(p => {
+      if (p.id !== myId) {
+        const pos = peerXYFromJoin(p, mapData.spawn);
+        let px = pos.x, py = pos.y;
+        if (isQuizCarry()) {
+          const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(px, py);
+          px = hubSnap.x;
+          py = hubSnap.y;
+        }
+        if (isQuizBattle()) {
+          const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          px = pathSnap.x;
+          py = pathSnap.y;
+        }
+        others.set(p.id, {
+          x: px, y: py, tx: px, ty: py, direction: p.direction, nickname: p.nickname, characterId: p.characterId,
+          playTint: playTintFromPeerId(p.id),
+          gauntletJumpTicks: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletJumpVis: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletScore: (() => { const s = Number(p.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          gauntletEliminated: !!p.gauntletEliminated,
+          jumpSurviveEliminated: false,
+          spaceShooterScore: (() => { const s = Number(p.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossScore: (() => { const s = Number(p.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossBalloons: (() => {
+            const s = Number(p.balloonBossBalloons);
+            return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+          })(),
+          balloonBossEliminated: !!p.balloonBossEliminated,
+          quizCarryHeld: null,
+        });
+      }
+    });
+    if (mapData.gameType === 'gauntlet') {
+      me.tx = me.x;
+      me.ty = me.y;
+      if (res.gauntletEndsAt != null) {
+        const geJoin = Number(res.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(geJoin) ? geJoin : null;
+      } else {
+        gauntletEndsAtMs = null;
+      }
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {});
+    } else {
+      me.tx = null;
+      me.ty = null;
+      gauntletEndsAtMs = null;
+    }
+    rebalancePreviewBots();
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (isStack()) {
+      lastStackTickMs = performance.now();
+      resetStackMinigameState();
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          else reapplyStackMiniSizingFromGlobals();
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        });
+    } else {
+      stackMini = null;
+    }
+    playPath = [];
+    me.isWalking = false;
+    if (mapData.gameType === 'jump_survive') {
+      if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+      if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+      normalizeJumpSurvivePlatformAreaInPlay(mapData);
+      jumpSurviveEliminated = false;
+      jumpSurviveGameEnded = false;
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      if (isJumpSurviveMissionUiMapPlay()) {
+        jumpSurviveMissionPhase = 'howto';
+        hideConflictingOverlaysForJumpSurviveMission();
+        applyJumpSurviveJumperPanelImages();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then(function (r) { return r.ok ? r.json() : null; })
+          .then(function (t) { if (t) applyGauntletTimingFromServer(t); })
+          .catch(function () {});
+        setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 50);
+      } else {
+        jumpSurviveMissionPhase = null;
+        jumpSurviveInitRuntime();
+      }
+    }
+    if (mapData.gameType === 'space_shooter') {
+      spaceShooterGameEnded = false;
+      normalizeShooterSpawnSlotsInPlay(mapData);
+      spaceShooterBullets = [];
+      spaceShooterAsteroids = [];
+      spaceShooterPopups = [];
+      spaceShooterLastTickMs = performance.now();
+      spaceShooterSpawnAccMs = 0;
+      spaceShooterFireCd = 0;
+      spaceShooterSessionStartMs = performance.now();
+      spaceShooterLastMoveEmit = 0;
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      balloonBossGameEnded = false;
+      normalizeBalloonBossPlayerSlotsInPlay(mapData);
+      balloonBossPendingShots = [];
+      balloonBossPlayerBullets = [];
+      balloonBossBossBullets = [];
+      balloonBossHitFx = [];
+      balloonBossLastTickMs = performance.now();
+      balloonBossPlayerFireCd = 0;
+      balloonBossSessionStartMs = performance.now();
+      balloonBossLastMoveEmit = 0;
+      balloonBossBossFireAcc = 0;
+    }
+    if (isQuiz()) setupPlayQuizUi();
+    else if (isQuizCarry()) setupPlayQuizCarryUi();
+    else if (isQuizBattle()) setupPlayQuizBattleUi();
+    else teardownPlayQuizUi();
+    if (mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) {
+      hideConflictingOverlaysForGauntletCrown();
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR = document.getElementById('gauntlet-crown-countdown');
+      if (gccR) gccR.classList.add('is-hidden');
+      setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 50);
+    } else if (mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay()) {
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccRj = document.getElementById('gauntlet-crown-countdown');
+      if (gccRj) gccRj.classList.add('is-hidden');
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+    } else {
+      const hov = document.getElementById('gauntlet-crown-howto-overlay');
+      if (hov) {
+        hov.classList.add('is-hidden');
+        gauntletCrownHowtoVisible = false;
+      }
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR2 = document.getElementById('gauntlet-crown-countdown');
+      if (gccR2) gccR2.classList.add('is-hidden');
+    }
+    resizeCanvas(); draw(); tick();
+  }
+
+  socket.on('connect', () => {
+    firstCharacterDefaultPromise.then(() => {
+      socket.emit('join-space', { spaceId, nickname: nick, characterId: getPlayCharacterId() }, (res) => {
+        if (!res || !res.ok) {
+          const errMsg = (res && res.error) || 'เข้าร่วมไม่ได้';
+          alert(errMsg);
+          const caseLocked = /เริ่มคดี|ไม่รับผู้เล่น/.test(errMsg);
+          const detectiveReturn = params.get('detectiveReturn') === '1'
+            || (function () { try { return sessionStorage.getItem('detectiveMinigameReturn') === '1'; } catch (e) { return false; } })();
+          if (caseLocked || detectiveReturn) {
+            window.location.replace(buildRoomLobbyReturnHref());
+          } else {
+            window.location.replace(BASE + '/lobby.html');
+          }
+          return;
+        }
+        myId = socket.id;
+        let botSlots = parseInt(res.botSlotCount, 10);
+        if ((!botSlots || botSlots < 1) && res.maxPlayers > 0 && res.maxPlayers < 6) {
+          botSlots = 6 - res.maxPlayers;
+        }
+        if (botSlots > 0) {
+          detectiveCaseFillBots = true;
+          detectiveBotSlotCount = Math.min(6, Math.max(0, botSlots));
+        }
+        if (isDetectiveMinigamePlay()) {
+          try { document.documentElement.classList.add('play-detective-minigame'); } catch (eD) { /* ignore */ }
+        }
+        if (res.quizCarrySettingsSnap && typeof res.quizCarrySettingsSnap === 'object') {
+          quizCarryJoinSettingsSnap = res.quizCarrySettingsSnap;
+          if (res.quizCarrySettingsSnap.carryMapPanelTheme && typeof res.quizCarrySettingsSnap.carryMapPanelTheme === 'object') {
+            setQuizCarryMapPanelThemeFromApi({ carryMapPanelTheme: res.quizCarrySettingsSnap.carryMapPanelTheme });
+          }
+          if (res.quizCarrySettingsSnap.carryEmbedCountdownTheme && typeof res.quizCarrySettingsSnap.carryEmbedCountdownTheme === 'object') {
+            setQuizCarryEmbedCountdownThemeFromApi({ carryEmbedCountdownTheme: res.quizCarrySettingsSnap.carryEmbedCountdownTheme });
+          }
+          if (Array.isArray(res.quizCarrySettingsSnap.carryChoicePlaqueThemes) && res.quizCarrySettingsSnap.carryChoicePlaqueThemes.length) {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueThemes: res.quizCarrySettingsSnap.carryChoicePlaqueThemes });
+          } else if (res.quizCarrySettingsSnap.carryChoicePlaqueTheme && typeof res.quizCarrySettingsSnap.carryChoicePlaqueTheme === 'object') {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueTheme: res.quizCarrySettingsSnap.carryChoicePlaqueTheme });
+          }
+          const joinSc = Number(res.quizCarrySettingsSnap.carryChoicePlaqueMapScale);
+          if (Number.isFinite(joinSc)) {
+            quizCarryPlaqueMapScale = Math.max(0.85, Math.min(2.5, joinSc));
+          }
+        }
+        if (previewMode && editorEmbedReturn && res.mapData && res.mapData.gameType === 'lobby') {
+          const q = [];
+          q.push('space=' + encodeURIComponent(spaceId));
+          q.push('nick=' + encodeURIComponent(nick));
+          const mid = params.get('map');
+          if (mid) q.push('map=' + encodeURIComponent(mid));
+          q.push('preview=1');
+          q.push('editorEmbed=1');
+          if (params.get('defaultChar') != null) q.push('defaultChar=' + encodeURIComponent(params.get('defaultChar')));
+          window.location.replace(BASE + '/room-lobby.html?' + q.join('&'));
+          return;
+        }
+        const playMapId = params.get('map');
+        if (playMapId) {
+          fetch(BASE + '/api/maps/' + encodeURIComponent(playMapId))
+            .then(r => r.ok ? r.json() : null)
+            .then(data => {
+              if (data) applyMapAndStart(data, res);
+              else applyMapAndStart(res.mapData, res);
+            })
+            .catch(() => applyMapAndStart(res.mapData, res));
+        } else {
+          applyMapAndStart(res.mapData, res);
+        }
+      });
+    });
+  });
+
+  const LERP = 0.2;
+  socket.on('user-joined', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    const x = Number(data.x);
+    const y = Number(data.y);
+    const px = Number.isFinite(x) ? x : 1;
+    const py = Number.isFinite(y) ? y : 1;
+    others.set(data.id, {
+      x: px, y: py, tx: px, ty: py,
+      direction: data.direction || 'down', nickname: data.nickname,
+      characterId: data.characterId ?? null,
+      playTint: playTintFromPeerId(data.id),
+      gauntletJumpTicks: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletJumpVis: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletScore: (() => { const s = Number(data.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      jumpSurviveEliminated: false,
+      spaceShooterScore: (() => { const s = Number(data.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossScore: (() => { const s = Number(data.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossBalloons: (() => {
+        const s = Number(data.balloonBossBalloons);
+        return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+      })(),
+      balloonBossEliminated: !!data.balloonBossEliminated,
+      quizCarryHeld: null,
+    });
+    if (previewFillBots) rebalancePreviewBots();
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('host-changed', (d) => {
+    if (d && d.hostId != null) playHostId = d.hostId;
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('quiz-carry-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    quizCarryLobbyReadyMap = { ...d.readyMap };
+    if (quizCarryPregameActive && isQuizCarry()) {
+      quizCarrySyncGuestReadyIfNeeded();
+      updateQuizCarryPregameHud();
+    }
+  });
+  socket.on('quiz-carry-lobby-started', () => {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    endQuizCarryEmbedPregameAndStart();
+  });
+  socket.on('gauntlet-crown-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    gauntletCrownLobbyReadyMap = { ...d.readyMap };
+    if (gauntletCrownPregamePhase === 'howto') {
+      gauntletCrownSyncGuestReadyIfNeeded();
+      updateGauntletCrownHowtoHud();
+    }
+  });
+  socket.on('gauntlet-crown-lobby-started', () => {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    beginGauntletCrownCountdownThenRun();
+  });
+  socket.on('user-move', (data) => {
+    if (data && myId != null && data.id === myId) {
+      /* Gauntlet: ตำแหน่งอ้างอิงจาก gauntlet-sync + เลอร์ปเท่านั้น — ไม่งั้น echo จาก move จะสแนป me.x/y โดยไม่อัปเดต tx/ty ทำให้เลอร์ปผิดและชนเซิร์ฟเวอร์ไม่ตรง */
+      if (mapData && mapData.gameType === 'gauntlet') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'stack') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'jump_survive') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'space_shooter') {
+        if (data.spaceShooterScore != null) {
+          const s = Number(data.spaceShooterScore);
+          if (Number.isFinite(s)) me.spaceShooterScore = Math.max(0, s);
+        }
+        return;
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) me.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) me.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) me.balloonBossEliminated = !!data.balloonBossEliminated;
+        return;
+      }
+      if (mapData && mapData.gameType === 'quiz_battle') {
+        if (data.x != null) {
+          const x = Number(data.x);
+          if (Number.isFinite(x)) me.x = x;
+        }
+        if (data.y != null) {
+          const y = Number(data.y);
+          if (Number.isFinite(y)) me.y = y;
+        }
+        const s = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+        me.x = s.x;
+        me.y = s.y;
+        if (data.direction) me.direction = data.direction;
+        if (data.characterId != null) me.characterId = data.characterId;
+        playPath = [];
+        return;
+      }
+      if (data.x != null) {
+        const x = Number(data.x);
+        if (Number.isFinite(x)) me.x = x;
+      }
+      if (data.y != null) {
+        const y = Number(data.y);
+        if (Number.isFinite(y)) me.y = y;
+      }
+      if (data.direction) me.direction = data.direction;
+      if (data.characterId != null) me.characterId = data.characterId;
+      playPath = [];
+      return;
+    }
+    const o = others.get(data.id);
+    if (o) {
+      if (mapData && mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData) && !isPreviewBotId(data.id)) {
+        const px = Number(data.x);
+        const py = Number(data.y);
+        if (Number.isFinite(px) && Number.isFinite(py)) {
+          const sn = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          o.tx = sn.x;
+          o.ty = sn.y;
+          o.x = sn.x;
+          o.y = sn.y;
+        } else {
+          o.tx = data.x;
+          o.ty = data.y;
+        }
+      } else {
+        o.tx = data.x;
+        o.ty = data.y;
+      }
+      o.direction = data.direction || o.direction;
+      if (data.characterId != null) o.characterId = data.characterId;
+      if (mapData && mapData.gameType === 'space_shooter' && data.spaceShooterScore != null) {
+        const s = Number(data.spaceShooterScore);
+        if (Number.isFinite(s)) o.spaceShooterScore = Math.max(0, s);
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) o.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) o.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) o.balloonBossEliminated = !!data.balloonBossEliminated;
+      }
+    }
+  });
+  socket.on('user-left', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    others.delete(data.id);
+    if (previewFillBots) rebalancePreviewBots();
+  });
+  socket.on('chat', (data) => {
+    const box = document.getElementById('chat-messages');
+    if (!box) return;
+    const div = document.createElement('div');
+    div.className = 'chat-msg';
+    div.textContent = (data.nickname || '') + ': ' + (data.text || '');
+    box.appendChild(div);
+    box.scrollTop = 1e9;
+  });
+
+  socket.on('quiz-phase', (p) => {
+    if (previewMode) return;
+    if (!p || !mapData || !isQuiz()) return;
+    if (p.text) playQuizText = p.text;
+    playQuizPhaseLocal = p.phase;
+    playQuizPhaseEndsAt = p.endsAt || 0;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    const qEl = document.getElementById('quiz-game-question');
+    if (phaseEl) {
+      phaseEl.textContent = p.phase === 'read'
+        ? ('อ่านคำถาม ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''))
+        : ('เดินไปโซน ถูก / ผิด — ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''));
+    }
+    if (qEl) qEl.textContent = playQuizText || '';
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.remove('is-hidden');
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(updatePlayQuizTimerDisplay, 200);
+    updatePlayQuizTimerDisplay();
+    if (!previewMode && isQuiz() && !Object.keys(playLiveQuizScores).length) initPlayLiveQuizScoresZeros();
+  });
+
+  socket.on('quiz-result', (r) => {
+    if (previewMode || !r) return;
+    if (r.scores) {
+      playLiveQuizScores = { ...r.scores };
+      renderPlayQuizScoreboard(playLiveQuizScores);
+    }
+    showPlayQuizFeedback(r);
+  });
+
+  socket.on('quiz-player-state', (st) => {
+    if (previewMode) return;
+    if (!st) return;
+    playQuizPlayerLocal = {
+      cannotTrue: !!st.cannotTrue,
+      cannotFalse: !!st.cannotFalse,
+      eliminated: !!st.eliminated,
+      score: typeof st.score === 'number' ? st.score : (playQuizPlayerLocal.score || 0),
+    };
+  });
+
+  socket.on('quiz-ended', () => {
+    if (previewMode && isQuiz()) return;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizPhaseLocal = null;
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+    }
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    playLiveQuizScores = {};
+    hidePlayQuizHud();
+  });
+
+  socket.on('gauntlet-sync', (data) => {
+    if (!mapData || mapData.gameType !== 'gauntlet' || !data) return;
+    applyGauntletTimingFromServer(data);
+    if (Array.isArray(data.obstacles)) {
+      gauntletObstacles = data.obstacles;
+      pushGauntletObsRenderFrame(data.obstacles);
+    }
+    if (!Array.isArray(data.players)) return;
+    data.players.forEach((p) => {
+      if (!p || p.id == null || myId == null) return;
+      const pid = String(p.id);
+      const mid = String(myId);
+      if (pid === mid) {
+        const px = Number(p.x);
+        const py = Number(p.y);
+        if (Number.isFinite(px)) me.tx = px;
+        if (Number.isFinite(py)) me.ty = py;
+        if (p.direction) me.direction = p.direction;
+        const jt = Number(p.gauntletJumpTicks);
+        meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+        meGauntletJumpVis = meGauntletJumpTicks;
+        const sc = Number(p.gauntletScore);
+        me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+        me.gauntletEliminated = !!p.gauntletEliminated;
+      } else {
+        const o = others.get(p.id) ?? others.get(pid);
+        if (o) {
+          const px = Number(p.x);
+          const py = Number(p.y);
+          if (Number.isFinite(px)) o.tx = px;
+          if (Number.isFinite(py)) o.ty = py;
+          if (p.direction) o.direction = p.direction;
+          const jt = Number(p.gauntletJumpTicks);
+          o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+          if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+          const sc = Number(p.gauntletScore);
+          o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+          o.gauntletEliminated = !!p.gauntletEliminated;
+        }
+      }
+    });
+    if (previewFillBots) {
+      applyGauntletPreviewBotsAfterSync();
+      emitGauntletPreviewRowsToServer();
+    }
+  });
+
+  socket.on('gauntlet-ended', (data) => {
+    cancelQuizCarryResultEndAfterTimeup();
+    gauntletEndsAtMs = null;
+    gauntletCrownRunHeldRemote = false;
+    gauntletCrownPregamePhase = null;
+    gauntletCrownLobbyReadyMap = {};
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    const gcc = document.getElementById('gauntlet-crown-countdown');
+    if (gcc) gcc.classList.add('is-hidden');
+    const hto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (hto) hto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    if (data && data.crownMission) {
+      showGauntletCrownMissionOverlay(data.crownMission);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = data && data.reason === 'time' ? 'หมดเวลา · Time up' : 'เกมจบ · Game over';
+    }
+    msgEl.textContent = (data && data.message) || 'เกมพรมแดงจบแล้ว';
+    listEl.innerHTML = '';
+    const ranks = (data && data.rankings) || [];
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  });
+
+  socket.on('game-start', (ev) => {
+    if (!ev || !ev.mapId) return;
+    const applySnap = (md) => {
+      mapData = md;
+      if (ev.mapId != null && String(ev.mapId).trim() !== '') {
+        playSessionMapId = String(ev.mapId).trim();
+      }
+      if (mapData.gameType !== 'space_shooter') {
+        spaceShooterGameEnded = false;
+      }
+      if (mapData.gameType !== 'balloon_boss') {
+        balloonBossGameEnded = false;
+      }
+      if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+      tileSize = mapData.tileSize || 32;
+      gauntletObstacles = [];
+      gauntletObsRenderPrev = [];
+      gauntletObsRenderNext = [];
+      gauntletObsBlendT0 = 0;
+      mapBackgroundImg = null;
+      if (mapData.backgroundImage) {
+        mapBackgroundImg = new Image();
+        mapBackgroundImg.src = mapData.backgroundImage;
+      }
+      normalizeGridImageCellsOnMap(mapData);
+      loadMapGridImages();
+      if (mapData.gameType === 'gauntlet' && ev.peersSnap && Array.isArray(ev.peersSnap)) {
+        ev.peersSnap.forEach((p) => {
+          if (p.id != null && myId != null && String(p.id) === String(myId)) {
+            const px = Number(p.x);
+            const py = Number(p.y);
+            if (Number.isFinite(px)) { me.x = px; me.tx = px; }
+            if (Number.isFinite(py)) { me.y = py; me.ty = py; }
+            me.direction = p.direction || me.direction;
+            const jt = Number(p.gauntletJumpTicks);
+            meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+            meGauntletJumpVis = meGauntletJumpTicks;
+            const sc = Number(p.gauntletScore);
+            me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+            me.gauntletEliminated = !!p.gauntletEliminated;
+          } else {
+            const o = others.get(p.id) ?? others.get(String(p.id));
+            if (o) {
+              const px = Number(p.x);
+              const py = Number(p.y);
+              if (Number.isFinite(px)) { o.x = px; o.tx = px; }
+              if (Number.isFinite(py)) { o.y = py; o.ty = py; }
+              o.direction = p.direction || o.direction;
+              const jt = Number(p.gauntletJumpTicks);
+              o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+              o.gauntletJumpVis = o.gauntletJumpTicks;
+              const sc = Number(p.gauntletScore);
+              o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+              o.gauntletEliminated = !!p.gauntletEliminated;
+            }
+          }
+        });
+      } else {
+        meGauntletJumpTicks = 0;
+        meGauntletJumpVis = 0;
+        me.gauntletScore = 0;
+        me.gauntletEliminated = false;
+        others.forEach((o) => {
+          o.gauntletJumpTicks = 0;
+          o.gauntletJumpVis = 0;
+          o.gauntletScore = 0;
+          o.gauntletEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'gauntlet') {
+        if (ev.gauntletEndsAt != null) {
+          const ge = Number(ev.gauntletEndsAt);
+          gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+        } else {
+          gauntletEndsAtMs = null;
+        }
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {});
+        if (String(ev.mapId || '') === GAUNTLET_FACE_RIGHT_MAP_ID) {
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc0 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc0) gcc0.classList.add('is-hidden');
+          setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 60);
+        } else {
+          const hto2 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto2) hto2.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc1 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc1) gcc1.classList.add('is-hidden');
+        }
+      } else {
+        gauntletEndsAtMs = null;
+        const skipHideCrownShell = mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay();
+        if (!skipHideCrownShell) {
+          const hto3 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto3) hto3.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+        }
+        gauntletCrownPregamePhase = null;
+        gauntletCrownLobbyReadyMap = {};
+        if (gauntletCrownCountdownTimer) {
+          clearTimeout(gauntletCrownCountdownTimer);
+          gauntletCrownCountdownTimer = null;
+        }
+        const gcc2 = document.getElementById('gauntlet-crown-countdown');
+        if (gcc2) gcc2.classList.add('is-hidden');
+      }
+      if (mapData.gameType !== 'gauntlet') {
+        me.tx = null;
+        me.ty = null;
+      }
+      const gauntletOv = document.getElementById('gauntlet-ended-overlay');
+      if (gauntletOv) gauntletOv.classList.add('is-hidden');
+      const gcmOv = document.getElementById('gauntlet-crown-mission-overlay');
+      if (gcmOv) gcmOv.classList.add('is-hidden');
+      if (mapData.gameType === 'stack') {
+        if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+        if (!mapData.stackLandArea) mapData.stackLandArea = [];
+        rebalancePreviewBots();
+        lastStackTickMs = performance.now();
+        resetStackMinigameState();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            else reapplyStackMiniSizingFromGlobals();
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          });
+      } else {
+        stackMini = null;
+      }
+      if (mapData.gameType === 'jump_survive') {
+        if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+        if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+        normalizeJumpSurvivePlatformAreaInPlay(mapData);
+        jumpSurviveEliminated = false;
+        jumpSurviveGameEnded = false;
+        if (jumperMissionCountdownTimer) {
+          clearTimeout(jumperMissionCountdownTimer);
+          jumperMissionCountdownTimer = null;
+        }
+        if (isJumpSurviveMissionUiMapPlay()) {
+          jumpSurviveMissionPhase = 'howto';
+          hideConflictingOverlaysForJumpSurviveMission();
+          applyJumpSurviveJumperPanelImages();
+          fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+            .then((r) => (r.ok ? r.json() : null))
+            .then((t) => { if (t) applyGauntletTimingFromServer(t); })
+            .catch(() => {});
+          setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 60);
+        } else {
+          jumpSurviveMissionPhase = null;
+          jumpSurviveInitRuntime();
+        }
+      }
+      if (mapData.gameType === 'space_shooter') {
+        spaceShooterGameEnded = false;
+        normalizeShooterSpawnSlotsInPlay(mapData);
+        spaceShooterBullets = [];
+        spaceShooterAsteroids = [];
+        spaceShooterPopups = [];
+        spaceShooterLastTickMs = performance.now();
+        spaceShooterSpawnAccMs = 0;
+        spaceShooterFireCd = 0;
+        spaceShooterSessionStartMs = performance.now();
+        spaceShooterLastMoveEmit = 0;
+      }
+      if (mapData.gameType === 'balloon_boss') {
+        balloonBossGameEnded = false;
+        normalizeBalloonBossPlayerSlotsInPlay(mapData);
+        balloonBossPendingShots = [];
+        balloonBossPlayerBullets = [];
+        balloonBossBossBullets = [];
+        balloonBossHitFx = [];
+        balloonBossLastTickMs = performance.now();
+        balloonBossPlayerFireCd = 0;
+        balloonBossSessionStartMs = performance.now();
+        balloonBossLastMoveEmit = 0;
+        balloonBossBossFireAcc = 0;
+        me.balloonBossScore = 0;
+        me.balloonBossBalloons = balloonBossBalloonsStartPlay();
+        me.balloonBossEliminated = false;
+        others.forEach((o) => {
+          o.balloonBossScore = 0;
+          o.balloonBossBalloons = balloonBossBalloonsStartPlay();
+          o.balloonBossEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'quiz_battle') {
+        if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+        if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+        normalizeQuizBattlePathInPlay(mapData);
+        normalizeQuizBattleDomeInPlay(mapData);
+        if (quizBattlePathModeActive(mapData)) {
+          const ms = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+          me.x = ms.x;
+          me.y = ms.y;
+          others.forEach((o) => {
+            const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+            o.x = s.x;
+            o.y = s.y;
+          });
+        }
+      }
+      var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+        : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+          : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+      var prevTag = previewMode ? '[ทดสอบ] ' : '';
+      document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+      if (isQuiz()) setupPlayQuizUi();
+      else if (isQuizCarry()) setupPlayQuizCarryUi();
+      else if (isQuizBattle()) setupPlayQuizBattleUi();
+      else teardownPlayQuizUi();
+      resizeCanvas();
+      if (mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'gauntlet') {
+        applyGauntletPreviewSpawnLayout(true);
+        emitGauntletPreviewRowsToServer();
+      }
+      if (previewFillBots && mapData.gameType === 'jump_survive') {
+        applyJumpSurvivePreviewSpawnLayout(true);
+      }
+      if (previewFillBots && mapData.gameType === 'space_shooter') {
+        applySpaceShooterSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+    };
+    fetch(BASE + '/api/maps/' + encodeURIComponent(ev.mapId))
+      .then((r) => (r.ok ? r.json() : null))
+      .then((md) => { if (md) applySnap(md); });
+  });
+
+  function resizeCanvas() {
+    const vw = window.innerWidth || document.documentElement.clientWidth || 800;
+    const vh = window.innerHeight || document.documentElement.clientHeight || 600;
+    const header = document.querySelector('.game-header');
+    const headerH = header && header.offsetHeight ? header.offsetHeight : 48;
+    const parent = canvas && canvas.parentElement;
+    let cw = canvas.clientWidth || 0;
+    let ch = canvas.clientHeight || 0;
+    if (parent && parent.clientWidth > 80) cw = Math.max(cw, parent.clientWidth);
+    if (parent && parent.clientHeight > 80) ch = Math.max(ch, parent.clientHeight);
+    if (ch < 120) ch = Math.max(240, vh - headerH - 6);
+    if (cw < 120) cw = Math.max(320, vw);
+    canvas.width = Math.max(320, cw);
+    canvas.height = Math.max(240, ch);
+    syncQuizCarryEmbedCountdownLayout();
+  }
+
+  // ให้ scroll wheel ใช้ซูมเข้า/ออกแบบง่าย ๆ
+  canvas.addEventListener('wheel', (e) => {
+    e.preventDefault();
+    const factor = e.deltaY < 0 ? 1.1 : 0.9;
+    zoom = Math.max(0.7, Math.min(2.5, zoom * factor));
+  }, { passive: false });
+  canvas.addEventListener('click', (e) => {
+    if (!mapData || !isStack() || isChatFocused()) return;
+    tryHumanStackDrop();
+  });
+  canvas.addEventListener('dblclick', (e) => {
+    if (!mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss() || isChatFocused() || isQuizCarryEmbedCountdownBlockingMovement()) return;
+    const r = canvas.getBoundingClientRect();
+    const sx = e.clientX - r.left;
+    const sy = e.clientY - r.top;
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const gx = (sx - canvas.width / 2) / zoom + camX;
+    const gy = (sy - canvas.height / 2) / zoom + camY;
+    const tx = Math.floor(gx / tileSize);
+    const ty = Math.floor(gy / tileSize);
+    const mw = mapData.width || 20, mh = mapData.height || 15;
+    if (tx < 0 || tx >= mw || ty < 0 || ty >= mh) return;
+    if (!canWalkLikeLobby(tx + 0.5, ty + 0.5)) return;
+    const path = pathfindPlay(me.x, me.y, tx + 0.5, ty + 0.5);
+    if (path.length <= 1) return;
+    playPath = path.slice(1);
+  });
+
+  function getCharacterFootprintWH(md) {
+    if (!md) return { cw: 1, ch: 1 };
+    let cw = Math.floor(Number(md.characterCellsW));
+    let ch = Math.floor(Number(md.characterCellsH));
+    const hasW = Number.isFinite(cw) && cw >= 1;
+    const hasH = Number.isFinite(ch) && ch >= 1;
+    if (hasW && hasH) {
+      return { cw: Math.max(1, Math.min(4, cw)), ch: Math.max(1, Math.min(4, ch)) };
+    }
+    const leg = Math.max(1, Math.min(4, Math.floor(Number(md.characterCells)) || 1));
+    return { cw: leg, ch: leg };
+  }
+
+  /**
+   * ขนาดช่องที่ใช้ชนกำแพง (objects=1) เท่านั้น — ชิดเท้า (ล่าง) + กลางแนวนอน · เล็กกว่า footprint = ส่วนบนไม่ติดกำแพง
+   */
+  function getCharacterCollisionFootprintWH(md) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let colW = Math.floor(Number(md.characterCollisionW));
+    let colH = Math.floor(Number(md.characterCollisionH));
+    if (!Number.isFinite(colW) || colW < 1) colW = cw;
+    if (!Number.isFinite(colH) || colH < 1) colH = ch;
+    colW = Math.max(1, Math.min(cw, colW));
+    colH = Math.max(1, Math.min(ch, colH));
+    return { cw, ch, colW, colH };
+  }
+
+  /** กันตัวละคร footprint ล้นออกนอกแมป — เดิมใช้ w-0.01 ทำให้ cw/ch>1 ชนขอบแล้วตรรกะเดินค้าง */
+  function clampPlayEntityFootprintToMap(oEnt, md) {
+    if (!oEnt || !md) return;
+    const w = md.width || 20, h = md.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const maxX = Math.max(0, w - cw + 0.999);
+    const maxY = Math.max(0, h - ch + 0.999);
+    if (!Number.isFinite(oEnt.x)) oEnt.x = 0.5;
+    if (!Number.isFinite(oEnt.y)) oEnt.y = 0.5;
+    oEnt.x = Math.max(0, Math.min(maxX, oEnt.x));
+    oEnt.y = Math.max(0, Math.min(maxY, oEnt.y));
+  }
+
+  /** แยกบอท preview ที่ทับกันบนจุดเดียว (มักชนกันที่ขอบแมป) */
+  function separateClumpedPreviewBots() {
+    if (!previewFillBots || !mapData) return;
+    const ids = [...others.keys()].filter(isPreviewBotId);
+    const minD = 0.52;
+    const pushAmt = MOVE_SPEED * 0.5;
+    for (let i = 0; i < ids.length; i++) {
+      for (let j = i + 1; j < ids.length; j++) {
+        const a = others.get(ids[i]);
+        const b = others.get(ids[j]);
+        if (!a || !b) continue;
+        let ddx = b.x - a.x, ddy = b.y - a.y;
+        let d = Math.sqrt(ddx * ddx + ddy * ddy);
+        if (d >= minD) continue;
+        if (d < 1e-5) {
+          ddx = (i + j * 2) % 2 === 0 ? 1 : -1;
+          ddy = ((i + j) % 3) - 1;
+          d = Math.sqrt(ddx * ddx + ddy * ddy) || 1;
+        }
+        const ux = -ddx / d, uy = -ddy / d;
+        const vx = ddx / d, vy = ddy / d;
+        const ax2 = a.x + ux * pushAmt, ay2 = a.y + uy * pushAmt;
+        const bx2 = b.x + vx * pushAmt, by2 = b.y + vy * pushAmt;
+        if (canWalkLikeLobbyForBot(ax2, ay2, a.x, a.y, a)) { a.x = ax2; a.y = ay2; }
+        if (canWalkLikeLobbyForBot(bx2, by2, b.x, b.y, b)) { b.x = bx2; b.y = by2; }
+        clampPlayEntityFootprintToMap(a, mapData);
+        clampPlayEntityFootprintToMap(b, mapData);
+      }
+    }
+  }
+
+  function quizTilesFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const maxTx = Math.min(w - 1, minTx + cw - 1);
+    const maxTy = Math.min(h - 1, minTy + ch - 1);
+    for (let ty = minTy; ty <= maxTy; ty++) {
+      for (let tx = minTx; tx <= maxTx; tx++) {
+        if (tx >= 0 && ty >= 0) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  /** ร่าง (cw×ch) ของผู้เล่นที่ (px,py) ครอบคลุมช่อง (tx,ty) หรือไม่ — ใช้กับ blockPlayer แทนการเช็คแค่มุมซ้ายบน */
+  function playEntityFootprintContainsTile(px, py, tx, ty) {
+    return quizTilesFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /**
+   * กล่องตรวจโซนห้ามซ้อน (blockPlayer) — วางเหมือนชนกำแพง: กลางแนวนอน + ชิดเท้า
+   * blockPlayerSeparationW/H: 0 = ใช้เต็มความกว้าง/สูงตัว · ค่าอื่น = จำกัด 1..cw / 1..ch
+   * รองรับ legacy blockPlayerSeparation เมื่อยังไม่มี W/H ใน JSON
+   */
+  function resolveBlockPlayerNoOverlapBoxWH(md) {
+    const m = md || mapData;
+    if (!m) return { cw: 1, ch: 1, boxW: 1, boxH: 1 };
+    const { cw, ch } = getCharacterFootprintWH(m);
+    let w = m.blockPlayerSeparationW != null && m.blockPlayerSeparationW !== '' ? Math.floor(Number(m.blockPlayerSeparationW)) : NaN;
+    let h = m.blockPlayerSeparationH != null && m.blockPlayerSeparationH !== '' ? Math.floor(Number(m.blockPlayerSeparationH)) : NaN;
+    const leg = m.blockPlayerSeparation != null && m.blockPlayerSeparation !== '' ? Math.floor(Number(m.blockPlayerSeparation)) : NaN;
+    const hasW = Number.isFinite(w) && w >= 0;
+    const hasH = Number.isFinite(h) && h >= 0;
+    if (!hasW && !hasH && Number.isFinite(leg) && leg >= 1) {
+      w = Math.min(leg, cw);
+      h = Math.min(leg, ch);
+    } else {
+      if (!hasW) w = 0;
+      if (!hasH) h = 0;
+    }
+    const boxW = !w || w <= 0 ? cw : Math.max(1, Math.min(cw, w));
+    const boxH = !h || h <= 0 ? ch : Math.max(1, Math.min(ch, h));
+    return { cw, ch, boxW, boxH };
+  }
+
+  /** ช่องกริดที่ถือว่า “ผู้เล่นที่ (px,py) กินพื้นที่” สำหรับตรวจโซน blockPlayer — กล่องเดียวกับแนวชนกำแพง */
+  function quizTilesBlockPlayerPeerFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, boxW, boxH } = resolveBlockPlayerNoOverlapBoxWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - boxW) / 2);
+    const offY = minTy + (ch - boxH);
+    for (let ty = offY; ty < offY + boxH; ty++) {
+      for (let tx = offX; tx < offX + boxW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function playPeerBlockPlayerOccupiesTile(px, py, tx, ty) {
+    return quizTilesBlockPlayerPeerFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /** Footprint ชนกำแพง (objects=1) เท่านั้น — hub / interactive / blockPlayer / quiz ใช้ quizTilesFootprintPlay = เต็ม characterCells */
+  function quizTilesWallCollisionFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, colW, colH } = getCharacterCollisionFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - colW) / 2);
+    const offY = minTy + (ch - colH);
+    for (let ty = offY; ty < offY + colH; ty++) {
+      for (let tx = offX; tx < offX + colW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function quizAnswerTileForbiddenForLock(lock, tx, ty) {
+    if (!lock || lock.eliminated) return false;
+    if (!mapData) return false;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    if (lock.cannotTrue && qt && qt[ty] && qt[ty][tx] === 1) return true;
+    if (lock.cannotFalse && qf && qf[ty] && qf[ty][tx] === 1) return true;
+    return false;
+  }
+
+  function quizAnswerTileForbiddenPlay(tx, ty) {
+    if (!playQuizPlayerLocal) return false;
+    return quizAnswerTileForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, tx, ty);
+  }
+
+  /** ยืนทับโซนต้องห้ามเมื่อโดนล็อก — ใช้กับ pathfind ปลายทาง / คลิก */
+  function quizLockFootprintBlocksForLock(lock, px, py) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockFootprintBlocksPlay(px, py) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockFootprintBlocksForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, px, py);
+  }
+
+  /** บล็อกเฉพาะการ «เข้า» ช่องตอบใหม่ — ให้เดินออกจากโซนได้ถ้าเคยยืนผิดแล้ว */
+  function quizLockWouldEnterForbiddenForLock(lock, ox, oy, nx, ny) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    const fromS = quizTilesFootprintPlay(ox, oy);
+    const toS = quizTilesFootprintPlay(nx, ny);
+    for (const k of toS) {
+      if (fromS.has(k)) continue;
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockWouldEnterForbiddenPlay(ox, oy, nx, ny) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockWouldEnterForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, ox, oy, nx, ny);
+  }
+
+  function botQuizLock(o) {
+    return {
+      cannotTrue: !!(o && o.quizCannotTrue),
+      cannotFalse: !!(o && o.quizCannotFalse),
+      eliminated: false,
+    };
+  }
+
+  /** Same walkability as room-lobby `canWalkLobby` (LobbyA / hall). */
+  function canWalkLikeLobby(x, y, fromX, fromY) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTiles = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTiles.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, o] of others) {
+          if (playPeerBlockPlayerOccupiesTile(o.x, o.y, tx, ty)) return false;
+        }
+      }
+    }
+    if (isQuiz() && playQuizPlayerLocal && !playQuizPlayerLocal.eliminated) {
+      const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+      if (hasFrom) {
+        if (quizLockWouldEnterForbiddenPlay(fromX, fromY, x, y)) return false;
+      } else if (quizLockFootprintBlocksPlay(x, y)) {
+        return false;
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  function canWalkLikeLobbyForBot(x, y, fromX, fromY, o) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTilesB = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTilesB) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTilesB.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, peer] of others) {
+          if (o && peer === o) continue;
+          if (playPeerBlockPlayerOccupiesTile(peer.x, peer.y, tx, ty)) return false;
+        }
+        if (o && playPeerBlockPlayerOccupiesTile(me.x, me.y, tx, ty)) return false;
+      }
+    }
+    if (isQuiz()) {
+      const lock = botQuizLock(o);
+      if (lock.cannotTrue || lock.cannotFalse) {
+        const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+        if (hasFrom) {
+          if (quizLockWouldEnterForbiddenForLock(lock, fromX, fromY, x, y)) return false;
+        } else if (quizLockFootprintBlocksForLock(lock, x, y)) {
+          return false;
+        }
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  /** ถ้าสปอว์น/โหลดมาทับโซน hub ให้หาจุดใกล้ ๆ ที่ footprint ไม่ทับ hub */
+  function snapPositionOutOfQuizCarryHubIfNeeded(x, y) {
+    if (!mapData || !isQuizCarry()) return { x, y };
+    if (!quizCarryFootprintOverlapsHub(x, y)) return { x, y };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const maxR = Math.max(w, h) + 6;
+    for (let r = 1; r <= maxR; r++) {
+      for (let dy = -r; dy <= r; dy++) {
+        for (let dx = -r; dx <= r; dx++) {
+          if (Math.max(Math.abs(dx), Math.abs(dy)) !== r) continue;
+          const nx = x + dx * 0.45;
+          const ny = y + dy * 0.45;
+          if (nx < 0 || ny < 0 || nx > w - 0.02 || ny > h - 0.02) continue;
+          if (quizCarryFootprintOverlapsHub(nx, ny)) continue;
+          if (!canWalkLikeLobby(nx, ny, NaN, NaN)) continue;
+          return { x: nx, y: ny };
+        }
+      }
+    }
+    return { x, y };
+  }
+
+  function stepPreviewBotAlongPath(o, w, h) {
+    const path = o.botPath;
+    if (!path || !path.length) return;
+    const way = path[0];
+    const dx = way.x - o.x, dy = way.y - o.y;
+    const dist = Math.sqrt(dx * dx + dy * dy);
+    if (dist <= PATH_ARRIVE_THRESH) {
+      path.shift();
+      while (path.length > 0) {
+        const w2 = path[0];
+        const ux = w2.x - o.x, uy = w2.y - o.y;
+        if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+        path.shift();
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+      return;
+    }
+    const len = dist || 1;
+    const pathStepMul = (previewFillBots && editorEmbedReturn) ? 0.56 : 1;
+    const step = Math.min(MOVE_SPEED * 1.28 * pathStepMul, len);
+    const nx = o.x + (dx / len) * step;
+    const ny = o.y + (dy / len) * step;
+    if (Math.abs(dy) > Math.abs(dx)) o.direction = dy > 0 ? 'down' : 'up';
+    else if (Math.abs(dx) > 1e-6) o.direction = dx > 0 ? 'right' : 'left';
+    const ox = o.x, oy = o.y;
+    const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else if (!pathStrict) {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        /* เส้นตรงไป waypoint อาจตัดมุม hub / block — ลองก้าวแนวแกนตามทิศหลักอย่างใดอย่างหนึ่ง */
+        const cstep = Math.min(MOVE_SPEED * 1.2 * pathStepMul, Math.max(Math.abs(dx), Math.abs(dy), 1e-4));
+        const sx = dx > 1e-4 ? 1 : dx < -1e-4 ? -1 : 0;
+        const sy = dy > 1e-4 ? 1 : dy < -1e-4 ? -1 : 0;
+        const tryAxisX = () => {
+          if (sx === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x + sx * cstep, o.y, o.x, o.y, o)) return false;
+          o.x += sx * cstep;
+          return true;
+        };
+        const tryAxisY = () => {
+          if (sy === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x, o.y + sy * cstep, o.x, o.y, o)) return false;
+          o.y += sy * cstep;
+          return true;
+        };
+        if (Math.abs(dx) >= Math.abs(dy)) {
+          if (!tryAxisX()) tryAxisY();
+        } else {
+          if (!tryAxisY()) tryAxisX();
+        }
+      }
+    }
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) {
+      o.botIsWalking = true;
+      o.botPathStuckTicks = 0;
+    } else {
+      o.botPathStuckTicks = (o.botPathStuckTicks | 0) + 1;
+      if ((o.botPathStuckTicks | 0) >= 20) {
+        o.botPathStuckTicks = 0;
+        if (path.length) path.shift();
+        if (isQuizCarry() && previewFillBots) o.botQuizCarryPathfindAfter = 0;
+      }
+    }
+  }
+
+  function pickRandomPreviewBotWanderDir() {
+    const dirs = [[0, -1], [0, 1], [-1, 0], [1, 0]];
+    return dirs[Math.floor(Math.random() * dirs.length)];
+  }
+
+  function stepPreviewBots() {
+    if (!playBotsEnabled() || !mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss()) return;
+    if (isQuizCarry()) {
+      stepQuizCarryPreviewBots();
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const now = Date.now();
+    const inAnswerPhase = previewMode && isQuiz() && previewQuizStep === 'answer';
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botIsWalking = false;
+      if (inAnswerPhase && o.botPath && o.botPath.length > 0 && !o.botAnswerWander) {
+        stepPreviewBotAlongPath(o, w, h);
+        return;
+      }
+      if (inAnswerPhase && o.botPath && o.botPath.length === 0 && !o.botAnswerWander) {
+        return;
+      }
+      /* ก่อนตอบ / พัก / บอทสับสน: เดินทุกเฟรมตามทิศ (เหมือนผู้เล่นกดค้าง) — เดิมรอเป็นจังหวะแล้วก้าวทีละครั้งเลยดูกระตุก */
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+      if (now >= o.botWanderNextTurn) {
+        o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+        if (Math.random() < 0.55) {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+        }
+      }
+      const accX = o.botWanderDx;
+      const accY = o.botWanderDy;
+      if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+      else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+      const step = MOVE_SPEED;
+      const nx = o.x + accX * step;
+      const ny = o.y + accY * step;
+      const ox = o.x, oy = o.y;
+      const pathStrictW = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+        o.x = nx;
+        o.y = ny;
+      } else if (!pathStrictW) {
+        if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+          o.x = nx;
+        } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+          o.y = ny;
+        } else {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+          o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+        }
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+      if (!Number.isFinite(o.x)) o.x = 0.5;
+      if (!Number.isFinite(o.y)) o.y = 0.5;
+      clampPlayEntityFootprintToMap(o, mapData);
+      if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+  }
+
+  /** A* เหมือน room-lobby — double-click ไปจุดบนแผนที่ */
+  function pathfindPlay(fromX, fromY, toX, toY) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobby(tx + 0.5, ty + 0.5)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobby(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  function pathfindPlayForBot(fromX, fromY, toX, toY, o) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobbyForBot(tx + 0.5, ty + 0.5, NaN, NaN, o)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobbyForBot(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5, o)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  let playPath = [];
+
+  function drawGauntletLaserColumnScreen(rx, ry, rw, rh) {
+    ctx.save();
+    ctx.fillStyle = gauntletLaserFillColor;
+    ctx.fillRect(rx, ry, rw, rh);
+    const topRec = gauntletLaserTopUrl ? ensureGauntletAssetImage(gauntletLaserTopUrl) : null;
+    const botRec = gauntletLaserBottomUrl ? ensureGauntletAssetImage(gauntletLaserBottomUrl) : null;
+    const lineRec = gauntletLaserLineUrl ? ensureGauntletAssetImage(gauntletLaserLineUrl) : null;
+    let topH = 0;
+    let botH = 0;
+    if (topRec && topRec.img.complete && topRec.img.naturalWidth > 0) {
+      topH = Math.min(rh * 0.4, rw * topRec.img.naturalHeight / topRec.img.naturalWidth);
+    }
+    if (botRec && botRec.img.complete && botRec.img.naturalWidth > 0) {
+      botH = Math.min(rh * 0.4, rw * botRec.img.naturalHeight / botRec.img.naturalWidth);
+    }
+    /* เส้นกลาง tile ทั้งความสูงคอลัมน์ แล้วค่อยวาดหัว/ท้ายทับ — ให้ลำแสงต่อเนื่องแบบสินทรัพย์รวม (รูปอ้างอิง) */
+    if (lineRec && lineRec.img.complete && lineRec.img.naturalWidth > 0 && rh > 1) {
+      const iw = lineRec.img.naturalWidth;
+      const ih = lineRec.img.naturalHeight;
+      const scale = rw / iw;
+      const step = Math.max(1, ih * scale);
+      let y = ry;
+      while (y < ry + rh) {
+        const piece = Math.min(step, ry + rh - y);
+        const srcH = piece / scale;
+        try {
+          ctx.drawImage(lineRec.img, 0, 0, iw, srcH, rx, y, rw, piece);
+        } catch (e) { /* ignore */ }
+        y += piece;
+      }
+    }
+    if (topH > 0 && topRec) {
+      try { ctx.drawImage(topRec.img, rx, ry, rw, topH); } catch (e) { /* ignore */ }
+    }
+    if (botH > 0 && botRec) {
+      try { ctx.drawImage(botRec.img, rx, ry + rh - botH, rw, botH); } catch (e) { /* ignore */ }
+    }
+    const lw = Number(gauntletLaserLineWidthPx) || 0;
+    if (lw > 0) {
+      ctx.strokeStyle = gauntletLaserStrokeColor;
+      ctx.lineWidth = lw;
+      ctx.strokeRect(rx + lw / 2, ry + lw / 2, rw - lw, rh - lw);
+    }
+    ctx.restore();
+  }
+
+  /** Stack preview: HUD แนว cyberdeck — SCORE ซ้าย, ตาปัจจุบันขวา, เทอร์มินัลล่างซ้าย */
+  function drawStackPreviewCyberHud(ctx, cw, ch) {
+    if (!playBotsEnabled() || !stackMini || !mapData || !isStack()) return;
+    const now = Date.now();
+    const pad = 12;
+    const currentSeat = getStackPreviewCurrentSeat();
+    const order = stackPreviewTurnOrder;
+    const mono = '11px ui-monospace, "Cascadia Mono", Consolas, monospace';
+    const monoSm = '9px ui-monospace, Consolas, monospace';
+    const lives = stackMini.lives != null ? stackMini.lives : 3;
+    const lifeSlots = 3;
+    const teamScore = stackMini.score || 0;
+    const combo = stackMini.combo || 0;
+
+    function roundRectPath(x, y, w, h, r) {
+      const rr = Math.min(r, w / 2, h / 2);
+      ctx.beginPath();
+      ctx.moveTo(x + rr, y);
+      ctx.arcTo(x + w, y, x + w, y + h, rr);
+      ctx.arcTo(x + w, y + h, x, y + h, rr);
+      ctx.arcTo(x, y + h, x, y, rr);
+      ctx.arcTo(x, y, x + w, y, rr);
+      ctx.closePath();
+    }
+
+    function drawHudAvatar(cx, baselineY, maxSize, characterId, playTint) {
+      const timeMs = now;
+      const dir = 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, false);
+      const charImg = playTint ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, false, playTint) : rawImg;
+      let iw = 0; let ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      const ax = cx - maxSize / 2;
+      const ay = baselineY - maxSize;
+      ctx.save();
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.clip();
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(maxSize / iw, maxSize / ih, 1);
+        const dw = iw * scale;
+        const dh = ih * scale;
+        ctx.drawImage(charImg, 0, 0, iw, ih, cx - dw / 2, baselineY - dh, dw, dh);
+      } else {
+        ctx.fillStyle = 'rgba(80, 200, 255, 0.35)';
+        ctx.fillRect(ax, ay, maxSize, maxSize);
+      }
+      ctx.restore();
+      ctx.strokeStyle = 'rgba(0, 234, 255, 0.5)';
+      ctx.lineWidth = 1.5;
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.stroke();
+    }
+
+    function resolveEntryVisual(entry) {
+      if (entry.kind === 'human') {
+        return {
+          name: String(me.nickname || 'YOU').toUpperCase(),
+          score: me.stackPreviewHumanPts || 0,
+          characterId: me.characterId,
+          playTint: me.playTint || playTintFromPeerId(String(myId || 'me')),
+        };
+      }
+      const o = entry.botId ? others.get(entry.botId) : null;
+      return {
+        name: o ? String(o.nickname || 'BOT').replace(/\s+/g, ' ').toUpperCase().slice(0, 12) : '—',
+        score: o ? (o.stackBotScore || 0) : 0,
+        characterId: o ? o.characterId : null,
+        playTint: o ? (o.playTint || playTintFromPeerId(entry.botId)) : null,
+      };
+    }
+
+    ctx.save();
+    ctx.setTransform(1, 0, 0, 1, 0, 0);
+
+    const boardW = Math.min(248, Math.max(200, cw * 0.36));
+    const rowH = 42;
+    const headH = 38;
+    const boardH = headH + stackTurnCount * rowH + 10;
+
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(0, 230, 255, 0.5)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.stroke();
+
+    ctx.fillStyle = '#5cefff';
+    ctx.font = 'bold 12px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('SCORE', pad + 14, 16);
+    ctx.fillStyle = 'rgba(94, 239, 255, 0.55)';
+    ctx.font = monoSm;
+    ctx.fillText('shared stack · P1–P6', pad + 62, 18);
+
+    let rowY = 8 + headH;
+    const drawRows = (entries) => {
+      entries.forEach((entry) => {
+        const isCurrent = entry.seat === currentSeat;
+        const v = resolveEntryVisual(entry);
+        let actionFlash = false;
+        if (entry.kind === 'human') {
+          actionFlash = lastStackPreviewActorId === '__human__' && now < lastStackPreviewActorUntil;
+        } else if (entry.botId) {
+          const ob = others.get(entry.botId);
+          actionFlash = !!(ob && ((now < (ob.stackBotGlowUntil || 0)) || (entry.botId === lastStackPreviewActorId && now < lastStackPreviewActorUntil)));
+        }
+        if (isCurrent) {
+          ctx.fillStyle = 'rgba(255, 0, 180, 0.1)';
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.fill();
+          ctx.strokeStyle = 'rgba(0, 255, 220, 0.9)';
+          ctx.lineWidth = 2;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        } else if (actionFlash) {
+          ctx.strokeStyle = 'rgba(255, 214, 102, 0.65)';
+          ctx.lineWidth = 1.5;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        }
+        const avS = 34;
+        drawHudAvatar(pad + 10 + avS / 2, rowY + avS - 3, avS, v.characterId, v.playTint);
+        ctx.fillStyle = isCurrent ? '#e0f7ff' : '#89b4fa';
+        ctx.font = '600 10px ui-sans-serif, system-ui, sans-serif';
+        ctx.textBaseline = 'middle';
+        ctx.fillText('P' + entry.seat, pad + 14 + avS + 6, rowY + 12);
+        ctx.fillStyle = '#c0caf5';
+        ctx.font = 'bold 10px ' + mono;
+        ctx.fillText(v.name.slice(0, 11), pad + 14 + avS + 6, rowY + 28);
+        ctx.fillStyle = actionFlash ? '#ffe066' : '#7dfcff';
+        ctx.font = 'bold 13px ' + mono;
+        ctx.textAlign = 'right';
+        ctx.fillText(String(v.score), pad + boardW - 12, rowY + rowH / 2);
+        ctx.textAlign = 'left';
+        rowY += rowH;
+      });
+    };
+
+    if (order && order.length === stackTurnCount) {
+      drawRows(order);
+    } else {
+      const bots = [...others.keys()].filter(isPreviewBotId).sort();
+      const rows = [{ kind: 'human', seat: 1 }];
+      for (let i = 0; i < stackTurnCount - 1; i++) {
+        rows.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+      }
+      drawRows(rows);
+    }
+
+    const rightW = 136;
+    let rightX = cw - pad - rightW;
+    const topY = 8;
+    if (rightX < pad + boardW + 14) {
+      rightX = Math.max(pad, cw - pad - rightW);
+    }
+    const bigAv = Math.min(78, Math.max(56, ch * 0.11));
+    const turnPanelH = bigAv + 118;
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 154, 247, 0.55)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.stroke();
+
+    let curEntry = null;
+    if (order && order.length === stackTurnCount) {
+      curEntry = order.find((e) => e.seat === currentSeat) || null;
+    }
+    const curV = curEntry ? resolveEntryVisual(curEntry) : resolveEntryVisual({ kind: 'human', seat: 1 });
+    const framePad = 8;
+    const avCx = rightX + rightW / 2;
+    const bigFrameTop = topY + framePad - 2;
+    const bigFrameH = bigAv + 8;
+    ctx.strokeStyle = 'rgba(255, 120, 200, 0.75)';
+    ctx.lineWidth = 2;
+    roundRectPath(rightX + framePad - 2, topY + framePad - 2, rightW - (framePad - 2) * 2, bigAv + 8, 6);
+    ctx.stroke();
+    drawHudAvatar(avCx, bigFrameTop + bigFrameH - 4, bigAv, curV.characterId, curV.playTint);
+
+    ctx.fillStyle = '#f5c2e7';
+    ctx.font = 'bold 10px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'top';
+    ctx.fillText('ACTIVE NODE', rightX + rightW / 2, topY + bigAv + 22);
+    ctx.fillStyle = '#7dfcff';
+    ctx.font = 'bold 11px ' + mono;
+    ctx.fillText('P' + currentSeat + ' · ' + curV.name.slice(0, 10), rightX + rightW / 2, topY + bigAv + 38);
+
+    ctx.fillStyle = '#bb9af7';
+    ctx.font = '600 9px ui-sans-serif, system-ui, sans-serif';
+    ctx.fillText('SYSTEM INTEGRITY', rightX + rightW / 2, topY + bigAv + 58);
+    ctx.font = '14px sans-serif';
+    let heartStr = '';
+    for (let i = 0; i < lifeSlots; i++) {
+      heartStr += i < lives ? '♥ ' : '♡ ';
+    }
+    ctx.fillStyle = lives <= 1 ? '#f7768e' : '#9ece6a';
+    ctx.fillText(heartStr.trim(), rightX + rightW / 2, topY + bigAv + 74);
+
+    ctx.fillStyle = 'rgba(125, 252, 255, 0.85)';
+    ctx.font = monoSm;
+    ctx.fillText('TEAM ' + teamScore + ' · COMBO x' + combo, rightX + rightW / 2, topY + bigAv + 96);
+
+    const termW = Math.min(380, Math.max(220, cw * 0.42));
+    const termH = 86;
+    const termY = Math.max(boardH + 24, ch - termH - 52);
+    ctx.fillStyle = 'rgba(18, 8, 32, 0.88)';
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 100, 255, 0.45)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.stroke();
+
+    ctx.fillStyle = '#c099ff';
+    ctx.font = '600 10px ' + mono;
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('// NODE_LOG', pad + 10, termY + 8);
+    ctx.fillStyle = '#7dcfff';
+    ctx.font = monoSm;
+    let ly = termY + 26;
+    const logLines = stackPreviewHudLog.length
+      ? stackPreviewHudLog.slice(-5)
+      : ['>>> Awaiting stack sync…', '>>> Space / click = release (your turn only)'];
+    logLines.forEach((ln) => {
+      ctx.fillText(ln, pad + 10, ly);
+      ly += 12;
+    });
+
+    const decryptPct = Math.min(100, Math.floor((stackMini.layers.length || 0) * 11 + Math.min(40, teamScore * 3)));
+    const barY = termY + termH - 18;
+    const barW = termW - 20;
+    ctx.fillStyle = 'rgba(0,0,0,0.35)';
+    ctx.fillRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = 'rgba(0, 255, 200, 0.65)';
+    ctx.fillRect(pad + 10, barY, Math.max(4, barW * decryptPct / 100), 8);
+    ctx.strokeStyle = 'rgba(0, 234, 255, 0.4)';
+    ctx.strokeRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = '#94e2d5';
+    ctx.font = monoSm;
+    ctx.fillText('TOWER_LINK ' + decryptPct + '%', pad + 10, barY - 14);
+
+    ctx.restore();
+  }
+
+  function useCyberPlayHud() {
+    return !!(mapData && (isJumpSurvive() || isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry()));
+  }
+
+  /** Cyber HUD: quiz_carry ใช้ playLiveQuizScores (ถูก +QUIZ_CARRY_POINTS_PER_CORRECT ตอนส่งป้ายถูกที่ฮับ) */
+  function cyberHudQuizCarryPeerScore(peerId) {
+    if (peerId == null) return 0;
+    return Math.max(0, Number(playLiveQuizScores[peerId]) || 0);
+  }
+
+  function syncPlayCyberHud() {
+    const root = document.getElementById('play-cyber-hud');
+    const stackEl = document.getElementById('play-canvas-stack');
+    const on = useCyberPlayHud();
+    if (root) {
+      root.classList.toggle('is-hidden', !on);
+      root.setAttribute('aria-hidden', on ? 'false' : 'true');
+    }
+    if (stackEl) stackEl.classList.toggle('play-cyber-vignette', !!on);
+    const gw = document.querySelector('.game-wrap');
+    if (gw) gw.classList.toggle('play-cyber-active', !!on);
+    if (!on || !root) return;
+    const timeLabelEl = root.querySelector('.play-cyber-time-label');
+    if (timeLabelEl) timeLabelEl.style.display = isQuizCarry() ? 'none' : '';
+    const timeVal = document.getElementById('play-cyber-time-val');
+    const timeSub = document.getElementById('play-cyber-time-sub');
+    const portrait = document.getElementById('play-cyber-portrait-img');
+    const statusEl = document.getElementById('play-cyber-self-status');
+    const hintEl = document.getElementById('play-cyber-hint');
+    const previewEl = document.getElementById('play-cyber-preview-line');
+
+    if (timeSub) {
+      timeSub.textContent = isQuizCarry()
+        ? 'QUIZ CARRY · COURT — หยิบป้ายถูกแล้วส่งที่ฮับ (F / Grab)'
+        : (isGauntlet() ? 'GAUNTLET · SURVIVAL RUN'
+          : (isSpaceShooter() ? 'SPACE SHOOTER · ARCADE'
+            : (isBalloonBoss() ? 'BALLOON BOSS · MEGA VIRUS'
+              : (isJumpSurviveMissionUiMapPlay() ? 'JUMPER · SURVIVE — เหลือเวลา (วินาที) · TIME (sec)' : 'JUMP SURVIVE · NODE UPLINK'))));
+    }
+    if (timeVal) {
+      if (isQuizCarry()) {
+        if (quizCarrySessionEnded) {
+          timeVal.textContent = '0';
+        } else if (previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now()) {
+          const rem = Math.max(0, Math.ceil((quizCarryEmbedCountdownEndAt - Date.now()) / 1000));
+          timeVal.textContent = String(rem);
+        } else if (quizCarryPregameActive) {
+          timeVal.textContent = '···';
+        } else if (!quizCarryCurrent) {
+          timeVal.textContent = '—';
+        } else if (quizCarryOptionRevealAt > 0 && Date.now() < quizCarryOptionRevealAt) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryOptionRevealAt - Date.now()) / 1000)));
+        } else if (quizCarryAnswerCloseAt > Date.now()) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryAnswerCloseAt - Date.now()) / 1000)));
+        } else {
+          timeVal.textContent = '0';
+        }
+      } else if (isGauntlet()) {
+        if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) {
+          timeVal.textContent = '···';
+        } else if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+          const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+          const mm = Math.floor(rem / 60);
+          const ss = rem % 60;
+          timeVal.textContent = `${mm}:${String(ss).padStart(2, '0')}`;
+        } else if (gauntletRuntimeTimeLimitSec > 0) {
+          timeVal.textContent = '···';
+        } else {
+          timeVal.textContent = '∞';
+        }
+      } else if (isSpaceShooter()) {
+        if (spaceShooterGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = spaceShooterRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isBalloonBoss()) {
+        if (balloonBossGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = balloonBossRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) {
+          timeVal.textContent = jumpSurviveMissionPhase === 'howto' ? '···' : (jumpSurviveMissionPhase === 'countdown' ? '···' : '0');
+        } else {
+          const rem = jumpSurviveRemainingSecMission();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else {
+        const t = jumpSurviveSessionStartMs > 0
+          ? Math.max(0, Math.floor((performance.now() - jumpSurviveSessionStartMs) / 1000))
+          : 0;
+        timeVal.textContent = String(t);
+      }
+    }
+
+    if (portrait) {
+      const cid = me.characterId || getPlayCharacterId();
+      const dir = (isGauntletFaceRightMapMno9kb07() ? 'right' : (me.direction || 'down'));
+      const nowT = Date.now();
+      const walk = !!me.isWalking;
+      const rawImg = getAvatarImg(cid, dir, nowT, walk);
+      const tint = me.playTint || playTintFromPeerId(String(myId != null ? myId : 'me'));
+      const comp = rawImg && cid && tint
+        ? getPlayTintedAvatarSource(rawImg, cid, dir, nowT, walk, tint)
+        : rawImg;
+      if (comp && comp.tagName === 'CANVAS' && comp.width > 0) {
+        try {
+          portrait.src = comp.toDataURL('image/png');
+        } catch (e) {
+          if (rawImg && rawImg.src) portrait.src = rawImg.src;
+        }
+      } else if (comp && comp.src) {
+        portrait.src = comp.src;
+      } else if (rawImg && rawImg.src) {
+        portrait.src = rawImg.src;
+      }
+    }
+    if (statusEl) {
+      if (isQuizCarry() && quizCarrySessionEnded) {
+        statusEl.textContent = 'SESSION COMPLETE · จบชุดคำถาม';
+      } else if (isJumpSurvive() && jumpSurviveEliminated) {
+        statusEl.textContent = 'SPECTATOR · LINK SEVERED';
+      } else if (isBalloonBoss() && me.balloonBossEliminated) {
+        statusEl.textContent = 'SPECTATOR · BALLOONS GONE';
+      } else {
+        statusEl.textContent = 'OPERATOR ONLINE';
+      }
+    }
+    if (hintEl) {
+      if (isQuizCarry()) {
+        hintEl.textContent = quizCarrySessionEnded
+          ? 'ชุดคำถามจบแล้ว · Session ended — ดูคะแนนด้าน SCORE'
+          : ('ยืนโซนตัวเลือกแล้วกด F/Grab หยิบ · ถือป้ายถูกแล้วไปฮับส่ง — ถูก +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' แต้ม (correct +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' on hub)');
+      } else if (isJumpSurvive()) {
+        if (isJumpSurviveMissionUiMapPlay()) {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'คุณตกน้ำแล้ว — ดูเพื่อนต่อ — รอจบเพื่อรับคะแนน (ผู้รอดได้ 100 คะแนน)'
+            : 'กระโดดตามแท่น — หลีกหนาม/กับดักด้านล่าง · หมดเวลาแล้วสรุปคะแนน (ผู้รอด 100) · Space / W / ↑ กระโดด · A D / ← → เดิน';
+        } else {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'Spectate remaining nodes · Exit room to reset session'
+            : 'Space / W / ↑ jump · A D / arrows move · Hit ceiling/floor = out (watch others)';
+        }
+      } else if (isSpaceShooter()) {
+        hintEl.textContent = spaceShooterGameEnded
+          ? 'จบแล้ว · Session ended — ดูอันดับบน overlay / see rankings on overlay'
+          : 'A D / ← → = move · W S / ↑ ↓ = up/down (lower half of map only) · Space = fire · +5 per hit';
+      } else if (isBalloonBoss()) {
+        hintEl.textContent = balloonBossGameEnded
+          ? 'จบแล้ว · Session ended — see overlay'
+            : (me.balloonBossEliminated
+            ? 'คุณตกรอบแล้ว — ดูเพื่อนเล่น · You are out — spectate'
+            : 'ยานมีแรงเฉื่อย — A D / arrows / W S เร่งทิศทาง · ปล่อยปุ่มแล้วยังไหล (แรงหน่วง) · Space = ยิง (ดีเลย์) · ลูกโป้งหมด = ตกรอบ');
+      } else if (isGauntletCrownHeistMapPlay()) {
+        hintEl.textContent = 'Space / W / ↑ jump · Start 100 pts · Hit -10 · Fall off left edge = out · Rank bonus at end';
+      } else {
+        hintEl.textContent = 'Space / W / ↑ jump · Lanes + lasers · Clear = right + score';
+      }
+    }
+    if (previewEl) {
+      if (previewFillBots && mapData) {
+        const human = countPlayHumans();
+        const bots = [...others.keys()].filter(isPreviewBotId).length;
+        previewEl.textContent = `SIM · humans ${human} + bots ${bots} · target ${previewTargetHeadcount}`;
+        previewEl.classList.remove('is-hidden');
+      } else {
+        previewEl.textContent = '';
+        previewEl.classList.add('is-hidden');
+      }
+    }
+
+    const ul = document.getElementById('play-cyber-score-list');
+    if (!ul) return;
+    const safeYv = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const jumpMissionHud = isJumpSurvive() && isJumpSurviveMissionUiMapPlay();
+    const rows = [];
+    rows.push({
+      id: myId,
+      nickname: me.nickname || nick,
+      characterId: me.characterId || getPlayCharacterId(),
+      score: isQuizCarry() ? cyberHudQuizCarryPeerScore(myId)
+        : (isGauntlet() ? (me.gauntletScore || 0)
+          : (isSpaceShooter() ? (me.spaceShooterScore || 0)
+            : (isBalloonBoss() ? (me.balloonBossScore || 0)
+              : (jumpMissionHud ? (jumpSurviveEliminated ? 0 : 100) : 0)))),
+      y: safeYv(me.y),
+      eliminated: !!(isJumpSurvive() && jumpSurviveEliminated) || !!(isBalloonBoss() && me.balloonBossEliminated)
+        || !!(isGauntletCrownHeistMapPlay() && me.gauntletEliminated),
+      isMe: true,
+    });
+    others.forEach((o, id) => {
+      rows.push({
+        id,
+        nickname: o.nickname || id.slice(0, 8),
+        characterId: o.characterId,
+        score: isQuizCarry() ? cyberHudQuizCarryPeerScore(id)
+          : (isGauntlet() ? (o.gauntletScore || 0)
+            : (isSpaceShooter() ? (o.spaceShooterScore || 0)
+              : (isBalloonBoss() ? (o.balloonBossScore || 0)
+                : (jumpMissionHud ? (o.jumpSurviveEliminated ? 0 : 100) : 0)))),
+        y: safeYv(o.y),
+        eliminated: !!(isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated)
+          || !!(isBalloonBoss() && o.balloonBossEliminated)
+          || !!(isGauntletCrownHeistMapPlay() && o.gauntletEliminated),
+        isMe: false,
+      });
+    });
+    let leaderId = null;
+    if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+      let mx = -1;
+      for (let i = 0; i < rows.length; i++) {
+        if (rows[i].score > mx) {
+          mx = rows[i].score;
+          leaderId = rows[i].id;
+        }
+      }
+    } else {
+      let best = Infinity;
+      for (let i = 0; i < rows.length; i++) {
+        if (!rows[i].eliminated && rows[i].y < best) {
+          best = rows[i].y;
+          leaderId = rows[i].id;
+        }
+      }
+    }
+    rows.sort((a, b) => {
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        if (b.score !== a.score) return b.score - a.score;
+        if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+        return String(a.nickname || '').localeCompare(String(b.nickname || ''), 'th');
+      }
+      if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+      return a.y - b.y;
+    });
+
+    ul.innerHTML = '';
+    const cap = 8;
+    for (let r = 0; r < Math.min(cap, rows.length); r++) {
+      const row = rows[r];
+      const li = document.createElement('li');
+      li.className = 'play-cyber-score-row' + (row.isMe ? ' is-me' : '') + (row.eliminated ? ' is-out' : '');
+      const av = document.createElement('img');
+      av.className = 'play-cyber-score-av';
+      av.alt = '';
+      const cid = row.characterId ? String(row.characterId) : '';
+      if (!cid) {
+        av.src = defaultAvatarImg.src;
+      } else {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) av.src = im.src;
+      }
+      const mid = document.createElement('div');
+      mid.className = 'play-cyber-score-mid';
+      const name = document.createElement('span');
+      name.className = 'play-cyber-score-name';
+      if (row.id === leaderId && leaderId != null) {
+        const crown = document.createElement('span');
+        crown.className = 'play-cyber-lead-crown';
+        crown.textContent = '♔';
+        crown.title = 'Leader';
+        name.appendChild(crown);
+      }
+      name.appendChild(document.createTextNode(String(row.nickname || '').slice(0, 14)));
+      const st = document.createElement('span');
+      st.className = 'play-cyber-score-state';
+      st.textContent = isQuizCarry()
+        ? ''
+        : (row.eliminated
+          ? (isBalloonBoss() ? 'OUT' : (isGauntletCrownHeistMapPlay() ? 'เสียชีวิต' : 'OFFLINE'))
+          : (isBalloonBoss()
+            ? ('♥' + Math.max(0, row.isMe ? (me.balloonBossBalloons | 0) : ((() => {
+              const ox = others.get(row.id);
+              return ox ? (ox.balloonBossBalloons | 0) : 0;
+            })())))
+            : 'LINK_OK'));
+      mid.appendChild(name);
+      mid.appendChild(st);
+      const sc = document.createElement('span');
+      sc.className = 'play-cyber-score-val';
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        sc.textContent = String(row.score);
+      } else {
+        sc.textContent = row.eliminated ? '—' : String(r + 1);
+      }
+      li.appendChild(av);
+      li.appendChild(mid);
+      li.appendChild(sc);
+      ul.appendChild(li);
+    }
+  }
+
+  function draw() {
+    if (!mapData) return;
+    const w = mapData.width, h = mapData.height;
+
+    const stackCam = isStack() ? getStackCameraCentersPx() : null;
+    let camX = stackCam ? stackCam.px : me.x * tileSize;
+    let camY = stackCam ? stackCam.py : me.y * tileSize;
+    if (isJumpSurvive()) {
+      camX = jumpSurviveCamCenterX;
+      camY = jumpSurviveCamCenterY;
+    }
+    let zDraw = zoom;
+    if (isSpaceShooter() || isBalloonBoss()) {
+      const mwPx = w * tileSize, mhPx = h * tileSize;
+      camX = mwPx * 0.5;
+      camY = mhPx * 0.5;
+      zDraw = Math.min(canvas.width / mwPx, canvas.height / mhPx) * 0.96;
+    }
+    const halfW = canvas.width / (2 * zDraw);
+    const halfH = canvas.height / (2 * zDraw);
+
+    // world bounds ที่กล้องมองเห็น (เป็นพิกัดพิกเซลของ map)
+    const worldMinX = camX - halfW;
+    const worldMaxX = camX + halfW;
+    const worldMinY = camY - halfH;
+    const worldMaxY = camY + halfH;
+
+    const mapWpx = w * tileSize, mapHpx = h * tileSize;
+    const visibleW = worldMaxX - worldMinX, visibleH = worldMaxY - worldMinY;
+    const showGrid = mapData.showMapInGame !== false && mapData.showMapInGame !== 'false';
+    const timeMs = Date.now();
+
+    if (mapBackgroundImg && mapBackgroundImg.complete && mapBackgroundImg.naturalWidth) {
+      /* กล้องเห็นพื้นที่นอก [0,map] ได้ — ห้ามสุ่มต้นทาง drawImage เกินขอบภาพ (จะเกิดซ้ำ/เส้นตัด/ซ้อนกันที่ขอบจอ) */
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      const natW = mapBackgroundImg.naturalWidth;
+      const natH = mapBackgroundImg.naturalHeight;
+      const bgMinX = Math.max(0, worldMinX);
+      const bgMaxX = Math.min(mapWpx, worldMaxX);
+      const bgMinY = Math.max(0, worldMinY);
+      const bgMaxY = Math.min(mapHpx, worldMaxY);
+      if (bgMaxX > bgMinX && bgMaxY > bgMinY) {
+        const srcX = (bgMinX / mapWpx) * natW;
+        const srcY = (bgMinY / mapHpx) * natH;
+        const srcW = ((bgMaxX - bgMinX) / mapWpx) * natW;
+        const srcH = ((bgMaxY - bgMinY) / mapHpx) * natH;
+        const destX = (bgMinX - camX) * zDraw + canvas.width / 2;
+        const destY = (bgMinY - camY) * zDraw + canvas.height / 2;
+        const destW = (bgMaxX - bgMinX) * zDraw;
+        const destH = (bgMaxY - bgMinY) * zDraw;
+        if (srcW > 0.25 && srcH > 0.25 && destW > 0.25 && destH > 0.25) {
+          ctx.drawImage(mapBackgroundImg, srcX, srcY, srcW, srcH, destX, destY, destW, destH);
+        }
+      }
+    } else {
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      if (isSpaceShooter()) {
+        ctx.save();
+        for (let s = 0; s < 120; s++) {
+          const sx = (Math.sin(s * 12.9898 + w) * 0.5 + 0.5) * canvas.width;
+          const sy = (Math.cos(s * 4.1415 + h) * 0.5 + 0.5) * canvas.height;
+          const br = (s % 4 === 0) ? 1.6 : 0.9;
+          ctx.fillStyle = s % 7 === 0 ? 'rgba(200, 240, 255, 0.35)' : 'rgba(255, 255, 255, 0.12)';
+          ctx.beginPath();
+          ctx.arc(sx, sy, br, 0, Math.PI * 2);
+          ctx.fill();
+        }
+        ctx.restore();
+      } else if (isBalloonBoss()) {
+        ctx.save();
+        ctx.fillStyle = 'rgba(30, 45, 120, 0.25)';
+        for (let col = 0; col < 24; col++) {
+          const x = (col + 0.5) * (canvas.width / 24);
+          for (let r = 0; r < 18; r++) {
+            const bit = (col * 17 + r * 31 + Math.floor(timeMs / 80)) % 2;
+            ctx.fillStyle = bit ? 'rgba(0, 255, 200, 0.14)' : 'rgba(180, 200, 255, 0.08)';
+            ctx.fillRect(x - 1, (r / 18) * canvas.height + ((timeMs / 40 + col * 3) % 40), 2.2, 10);
+          }
+        }
+        ctx.fillStyle = 'rgba(240, 248, 255, 0.55)';
+        ctx.beginPath();
+        ctx.moveTo(0, canvas.height);
+        const baseY = canvas.height * 0.88;
+        for (let k = 0; k <= 40; k++) {
+          const bx = (k / 40) * canvas.width;
+          const by = baseY - Math.abs(Math.sin(k * 1.7 + w)) * canvas.height * 0.08 - (k % 3) * 4;
+          ctx.lineTo(bx, by);
+        }
+        ctx.lineTo(canvas.width, canvas.height);
+        ctx.closePath();
+        ctx.fill();
+        ctx.restore();
+      }
+    }
+    function worldToScreen(wx, wy) {
+      const sx = (wx - camX) * zDraw + canvas.width / 2;
+      const sy = (wy - camY) * zDraw + canvas.height / 2;
+      return [sx, sy];
+    }
+
+    function drawGridImagePlacementsLayer() {
+      if (!mapData.gridImagePlacements || !mapData.gridImagePlacements.length || !mapData.gridImageLibrary || !mapData.gridImageLibrary.length) return;
+      for (let gi = 0; gi < mapData.gridImagePlacements.length; gi++) {
+        const sp = mapData.gridImagePlacements[gi];
+        const wx0 = sp.x * tileSize;
+        const wy0 = sp.y * tileSize;
+        const ww = sp.w * tileSize;
+        const wh = sp.h * tileSize;
+        if (wx0 + ww <= worldMinX || wx0 >= worldMaxX || wy0 + wh <= worldMinY || wy0 >= worldMaxY) continue;
+        let gim = mapGridImageImgs[sp.i];
+        let carrySpriteAlpha = 1;
+        if (isQuizCarry()) {
+          const domOpt = quizCarryOptionIndexForGridSprite(mapData, sp);
+          const onHub = spriteOverlapsQuizCarryHubArea(mapData, sp);
+          const meHolding = me && me.quizCarryHeld != null;
+          let carryVisualActive = false;
+          if (domOpt != null && quizCarryOptionHeldByAnyone(domOpt)) carryVisualActive = true;
+          else if (domOpt == null && onHub && meHolding) carryVisualActive = true;
+          if (carryVisualActive) {
+            const gh = mapGridImageHeldImgs[sp.i];
+            if (gh && gh.complete && gh.naturalWidth) gim = gh;
+            else carrySpriteAlpha = 0.32;
+          }
+        }
+        if (!gim || !gim.complete || !gim.naturalWidth) continue;
+        const sx0 = (wx0 - camX) * zDraw + canvas.width / 2;
+        const sy0 = (wy0 - camY) * zDraw + canvas.height / 2;
+        const sw = ww * zDraw;
+        const sh = wh * zDraw;
+        ctx.save();
+        if (carrySpriteAlpha < 1) ctx.globalAlpha = carrySpriteAlpha;
+        ctx.beginPath();
+        ctx.rect(sx0, sy0, sw, sh);
+        ctx.clip();
+        ctx.drawImage(gim, sx0, sy0, sw, sh);
+        ctx.restore();
+        ctx.strokeStyle = 'rgba(255,255,255,0.18)';
+        ctx.lineWidth = 1;
+        ctx.strokeRect(sx0 + 0.5, sy0 + 0.5, sw - 1, sh - 1);
+      }
+    }
+
+    const startTileX = Math.max(0, Math.floor(worldMinX / tileSize));
+    const endTileX = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+    const startTileY = Math.max(0, Math.floor(worldMinY / tileSize));
+    const endTileY = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        const lane = isFrogger() ? getLane(y) : null;
+        let rowFill = null;
+        if (lane) {
+          if (lane.type === 'goal') rowFill = 'rgba(158,206,106,0.4)';
+          else if (lane.type === 'spawn') rowFill = 'rgba(187,154,247,0.35)';
+          else if (lane.type === 'road') rowFill = 'rgba(80,70,60,0.6)';
+          else if (lane.type === 'water') rowFill = 'rgba(125,207,255,0.5)';
+        } else if (isGauntlet()) {
+          rowFill = (y % 2 === 0) ? 'rgba(247,118,190,0.08)' : 'rgba(180,90,140,0.06)';
+        } else if (isStack()) {
+          rowFill = (y % 2 === 0) ? 'rgba(122, 162, 247, 0.06)' : 'rgba(187, 154, 247, 0.05)';
+        } else if (isJumpSurvive()) {
+          rowFill = (y % 2 === 0) ? 'rgba(90, 200, 255, 0.07)' : 'rgba(60, 140, 200, 0.06)';
+        } else if (isSpaceShooter()) {
+          rowFill = (y % 2 === 0) ? 'rgba(30, 45, 110, 0.22)' : 'rgba(20, 32, 78, 0.28)';
+        } else if (isBalloonBoss()) {
+          rowFill = (y % 2 === 0) ? 'rgba(40, 25, 80, 0.2)' : 'rgba(25, 18, 60, 0.24)';
+        } else if (isQuizBattle()) {
+          rowFill = (y % 2 === 0) ? 'rgba(110, 175, 255, 0.06)' : 'rgba(230, 110, 140, 0.055)';
+        }
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const ob = mapData.objects?.[y]?.[x] ?? 0;
+          if (ob === 1) {
+            ctx.fillStyle = 'rgba(65,72,104,0.92)';
+            ctx.fillRect(sx, sy, size, size);
+            ctx.strokeStyle = '#565f89';
+            ctx.strokeRect(sx, sy, size, size);
+          } else {
+            const cellColor = showGrid && mapData.cellColors && mapData.cellColors[y] && mapData.cellColors[y][x];
+            if (cellColor) { ctx.fillStyle = cellColor; ctx.fillRect(sx, sy, size, size); }
+            else if (rowFill) { ctx.fillStyle = rowFill; ctx.fillRect(sx, sy, size, size); }
+            else if (!mapBackgroundImg || !mapBackgroundImg.complete) {
+              ctx.fillStyle = (x + y) % 2 === 0 ? '#24283b' : '#1f2335';
+              ctx.fillRect(sx, sy, size, size);
+            }
+          }
+        }
+      }
+    }
+    drawGridImagePlacementsLayer();
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const isInter = mapData.interactive && mapData.interactive[y] && mapData.interactive[y][x] === 1;
+          if (isInter) {
+            ctx.fillStyle = 'rgba(158,206,106,0.35)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = 'rgba(158,206,106,0.8)';
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+          }
+          if (isQuiz()) {
+            const isQuizQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isQuizQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.32)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.78)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizT = mapData.quizTrueArea && mapData.quizTrueArea[y] && mapData.quizTrueArea[y][x] === 1;
+            if (isQuizT) {
+              ctx.fillStyle = 'rgba(86, 202, 255, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizF = mapData.quizFalseArea && mapData.quizFalseArea[y] && mapData.quizFalseArea[y][x] === 1;
+            if (isQuizF) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+          }
+          if (isQuizCarry()) {
+            const hub = mapData.quizCarryHubArea && mapData.quizCarryHubArea[y] && mapData.quizCarryHubArea[y][x] === 1;
+            if (hub) {
+              ctx.fillStyle = 'rgba(187, 154, 247, 0.35)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(200, 170, 255, 0.75)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isCarryQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isCarryQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.3)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.82)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const ov = mapData.quizCarryOptionArea && mapData.quizCarryOptionArea[y] && mapData.quizCarryOptionArea[y][x];
+            if (ov >= 1 && ov <= QUIZ_CARRY_MAX_OPTION_SLOTS) {
+              ctx.fillStyle = quizCarryMinimapOptionFillCss(ov);
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattlePathArea && mapData.quizBattlePathArea[y] && mapData.quizBattlePathArea[y][x] === 1) {
+            ctx.fillStyle = 'rgba(186, 130, 255, 0.4)';
+            ctx.fillRect(sx + 1, sy + 1, size - 2, size - 2);
+            ctx.strokeStyle = 'rgba(220, 170, 255, 0.55)';
+            ctx.strokeRect(sx + 1, sy + 1, size - 2, size - 2);
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattleDomeArea && mapData.quizBattleDomeArea[y] && mapData.quizBattleDomeArea[y][x] === 1) {
+            const cid = mapData.quizBattleDomeComp && mapData.quizBattleDomeComp[y] && mapData.quizBattleDomeComp[y][x];
+            const done = cid > 0 && quizBattleAnsweredComps.has(cid);
+            ctx.fillStyle = done ? 'rgba(90, 90, 110, 0.4)' : 'rgba(100, 200, 255, 0.36)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = done ? 'rgba(140, 140, 160, 0.65)' : 'rgba(255, 100, 130, 0.82)';
+            ctx.lineWidth = 2;
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.lineWidth = 1;
+          }
+          if (isStack()) {
+            const sr = mapData.stackReleaseArea, sl = mapData.stackLandArea;
+            if (sr && sr[y] && sr[y][x] === 1) {
+              ctx.fillStyle = 'rgba(125, 207, 255, 0.28)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.55)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            if (sl && sl[y] && sl[y][x] === 1) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.26)';
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.5)';
+              ctx.strokeRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isBalloonBoss() && showGrid && mapData.balloonBossPlayerSlots) {
+            const sv = mapData.balloonBossPlayerSlots[y] && mapData.balloonBossPlayerSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(255, 120, 200, 0.12)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 160, 220, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(255, 228, 250, 0.92)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+          if (isSpaceShooter() && showGrid && mapData.shooterSpawnSlots) {
+            const sv = mapData.shooterSpawnSlots[y] && mapData.shooterSpawnSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(0, 255, 240, 0.14)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(220, 250, 255, 0.9)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+        }
+      }
+      if (isJumpSurvive() && showGrid && mapData.jumpSurvivePlatformArea) {
+        const pa = mapData.jumpSurvivePlatformArea;
+        const sc = jumpSurvivePlatformScrollPx;
+        const tsz = tileSize;
+        const period = h * tsz;
+        const visTop = worldMinY;
+        const visBot = worldMaxY;
+        const eps = 1e-6;
+        for (let py = 0; py < h; py++) {
+          for (let px = 0; px < w; px++) {
+            if (!pa[py] || pa[py][px] !== 1) continue;
+            const tileWorldLeft = px * tsz;
+            const tileWorldRight = tileWorldLeft + tsz;
+            if (tileWorldRight <= worldMinX || tileWorldLeft >= worldMaxX) continue;
+            const rawTop = py * tsz - sc;
+            const kMin = Math.ceil((visTop - rawTop - tsz + eps) / period);
+            const kMax = Math.floor((visBot - rawTop - eps) / period);
+            if (kMax < kMin) continue;
+            for (let kk = kMin; kk <= kMax; kk++) {
+              const platTop = rawTop + kk * period;
+              if (platTop + tsz <= visTop || platTop >= visBot) continue;
+              const [psx, psy] = worldToScreen(tileWorldLeft, platTop);
+              const psz = tsz * zDraw;
+              ctx.fillStyle = 'rgba(0, 40, 52, 0.72)';
+              ctx.fillRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(0, 255, 240, 0.55)';
+              ctx.lineWidth = 2;
+              ctx.strokeRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.35)';
+              ctx.lineWidth = 1;
+              ctx.strokeRect(psx + 5, psy + 5, psz - 10, psz - 10);
+              const grad = ctx.createLinearGradient(psx, psy, psx, psy + psz);
+              grad.addColorStop(0, 'rgba(0, 255, 240, 0.12)');
+              grad.addColorStop(0.5, 'rgba(0, 0, 0, 0)');
+              grad.addColorStop(1, 'rgba(0, 180, 200, 0.08)');
+              ctx.fillStyle = grad;
+              ctx.fillRect(psx + 4, psy + 4, psz - 8, psz - 8);
+              ctx.lineWidth = 1;
+              if (zDraw >= 1.15 && psz > 22) {
+                ctx.save();
+                ctx.font = `600 ${Math.max(7, Math.min(11, psz * 0.14))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(180, 255, 255, 0.5)';
+                ctx.textAlign = 'center';
+                ctx.textBaseline = 'middle';
+                ctx.fillText('DATA', psx + psz * 0.5, psy + psz * 0.38);
+                ctx.font = `500 ${Math.max(5, Math.min(8, psz * 0.1))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(120, 230, 255, 0.38)';
+                ctx.fillText('/SEC/BLOCK', psx + psz * 0.5, psy + psz * 0.62);
+                ctx.restore();
+              }
+            }
+          }
+        }
+      }
+      if (isFrogger() && mapData.lanes) {
+        for (let y = startTileY; y <= endTileY; y++) {
+          const lane = getLane(y);
+          if (!lane || (lane.type !== 'road' && lane.type !== 'water')) continue;
+          const positions = getVehiclePositions(lane, mapData.width, timeMs);
+          const isRoad = lane.type === 'road';
+          for (let i = 0; i < positions.length; i++) {
+            const vx = positions[i];
+            const wx = vx * tileSize, wy = y * tileSize;
+            const [sx, sy] = worldToScreen(wx, wy);
+            const size = tileSize * zDraw * (isRoad ? 1.2 : 1.5);
+            ctx.fillStyle = isRoad ? '#e0a060' : '#8b7355';
+            ctx.fillRect(sx, sy, size, size * 0.7);
+            ctx.strokeStyle = isRoad ? '#c0caf5' : '#9ece6a';
+            ctx.strokeRect(sx, sy, size, size * 0.7);
+          }
+        }
+      }
+    }
+
+    if (isQuizCarry()) {
+      drawQuizCarryChoiceLabels(ctx, worldToScreen, zDraw);
+    }
+
+    if (isStack() && stackMini) {
+      drawStackMinigame(ctx, worldToScreen, zDraw);
+    }
+
+    const gauntletObsDraw = isGauntlet() ? getGauntletObsDrawPositionsAt(performance.now()) : [];
+    if (isGauntlet() && gauntletObsDraw.length) {
+      const stx = Math.max(0, Math.floor(worldMinX / tileSize));
+      const enx = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+      const sty = Math.max(0, Math.floor(worldMinY / tileSize));
+      const eny = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+      for (let i = 0; i < gauntletObsDraw.length; i++) {
+        const o = gauntletObsDraw[i];
+        if (!o) continue;
+        if (o.kind === 'lane' && typeof o.y === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2 || o.y < sty || o.y > eny) continue;
+          const size = tileSize * zDraw;
+          const inner = Math.max(2, size - 4);
+          const [sxC, syCellBottom] = worldToScreen((o.drawX + 0.5) * tileSize, (o.y + 1) * tileSize);
+          const dx = sxC - inner / 2;
+          const dy = syCellBottom - inner;
+          const laneRec = pickGauntletLaneImageRec(o.id);
+          if (laneRec && laneRec.img.complete && laneRec.img.naturalWidth > 0) {
+            try {
+              ctx.drawImage(laneRec.img, dx, dy, inner, inner);
+            } catch (e) {
+              ctx.fillStyle = '#f7768e';
+              ctx.fillRect(dx, dy, inner, inner);
+            }
+          } else {
+            ctx.fillStyle = '#f7768e';
+            ctx.fillRect(dx, dy, inner, inner);
+          }
+        } else if (o.kind === 'laser' && typeof o.drawX === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2) continue;
+          const { y0: laserRow0, y1: laserRow1 } = gauntletLaserRowHitRange(o, h);
+          const wx0 = o.drawX * tileSize;
+          const wx1 = (o.drawX + 1) * tileSize;
+          const wy0 = laserRow0 * tileSize;
+          const wy1 = (laserRow1 + 1) * tileSize;
+          const [sx0, syTop] = worldToScreen(wx0, wy0);
+          const [sx1, syBot] = worldToScreen(wx1, wy1);
+          const rx = Math.min(sx0, sx1);
+          const rw = Math.max(2, Math.abs(sx1 - sx0));
+          const ry = Math.min(syTop, syBot);
+          const rh = Math.abs(syBot - syTop);
+          drawGauntletLaserColumnScreen(rx, ry, rw, rh);
+        }
+      }
+    }
+
+    /** ป้ายติดตัว — กึ่งกลางลำตัว (ทับอก/เอว) แบบเดียวกับป้ายบนพื้น ไม่มีเส้นเชื่อม */
+    function drawQuizCarryHeldSignBoard(sxFeet, feetSy, halfSpriteW, spriteTopY, signText, _faceDir, choiceIndex, imageUrl, imageElementOpt) {
+      const imgUrlSan = sanitizeQuizCarryImageUrlClient(imageUrl);
+      const gridHeldDraw = imageElementOpt && imageElementOpt.complete && imageElementOpt.naturalWidth > 0 ? imageElementOpt : null;
+      const raw = String(signText || '').trim();
+      if (!raw && !imgUrlSan && !gridHeldDraw) return;
+      ctx.save();
+      const heldPs = quizCarryPlaqueMapScaleClampedPlay();
+      const bodyH = Math.max(18, feetSy - spriteTopY);
+      const midBodyY = spriteTopY + bodyH * 0.48;
+      const bodyCx = sxFeet;
+      const halfW = Math.max(10, halfSpriteW || 0);
+      const baseMaxW = Math.min(280, Math.max(100, halfW * 2.4 + tileSize * zDraw * 0.5));
+      const maxPlaqueW = Math.min(340, Math.round(baseMaxW * heldPs));
+
+      const fontPx = Math.max(12, Math.min(22, tileSize * zDraw * 0.22 * heldPs));
+      ctx.font = `600 ${fontPx}px system-ui, "Segoe UI", "Kanit", sans-serif`;
+      const padX = 12;
+      const padY = 9;
+      const maxInner = Math.min(maxPlaqueW - padX * 2, Math.max(72, tileSize * zDraw * 4.2));
+      let lines;
+      if (!raw) {
+        lines = [];
+      } else {
+        lines = canvasWordWrapLines(ctx, raw, maxInner);
+        if (!lines.length) lines = [raw];
+        if (lines.length > 3) lines = lines.slice(0, 3);
+        for (let i = 0; i < lines.length; i++) {
+          let s = lines[i];
+          if (ctx.measureText(s).width <= maxInner) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxInner) s = s.slice(0, -1);
+          lines[i] = s + '…';
+        }
+      }
+      let maxLineW = 0;
+      for (let i = 0; i < lines.length; i++) {
+        const lw = ctx.measureText(lines[i]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const lineH = fontPx * 1.22;
+      let w;
+      let h;
+      if (!lines.length && (imgUrlSan || gridHeldDraw)) {
+        w = Math.ceil(Math.min(maxPlaqueW, Math.max(104, maxInner + padX * 2)));
+        h = Math.ceil(Math.max(56, fontPx * 2.8 + padY * 2));
+      } else {
+        w = Math.ceil(Math.max(maxLineW, 56) + padX * 2);
+        h = Math.ceil(lines.length * lineH + padY * 2);
+        w = Math.min(maxPlaqueW, Math.max(96, w));
+        h = Math.max(40, h);
+      }
+
+      let signX = bodyCx - w / 2;
+      let signY = midBodyY - h / 2;
+
+      if (signX + w > canvas.width - 6) signX = canvas.width - w - 6;
+      if (signX < 6) signX = 6;
+      if (signY < 6) signY = 6;
+      if (signY + h > feetSy + 8) signY = feetSy + 8 - h;
+
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, null, { imageUrl: imgUrlSan, imageElement: gridHeldDraw });
+      ctx.restore();
+    }
+
+    function drawAvatar(ax, ay, isMe, name, characterId, direction, isWalking, playTint, gauntletAirTicks, gauntletScoreLabel, quizCarrySignPayload) {
+      const { cw, ch } = getCharacterFootprintWH(mapData);
+      const air = Number(gauntletAirTicks) || 0;
+      let liftWorldY = 0;
+      if (isGauntlet() && air > 0) {
+        liftWorldY = gauntletLiftHeightNorm(air, gauntletRuntimeJumpTicks) * tileSize * 0.52;
+      }
+      const cxWorld = (ax + cw * 0.5) * tileSize;
+      /* ใช้ ay แบบต่อเนื่อง — ห้าม floor(ay) เดิมทำให้เท้ากระโดดทีละช่องขณะเดิน (กระตุกแนวตั้ง) */
+      const cyBottomWorld = (ay + ch) * tileSize - liftWorldY;
+      const [sx, sy] = worldToScreen(cxWorld, cyBottomWorld);
+      const cellSpan = Math.max(cw, ch);
+      const r = Math.max(14, (tileSize * zDraw * cellSpan) / 2 - 2);
+      const size = r * 2.2;
+      const dir = direction || 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, isWalking);
+      const charImg = playTint
+        ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, playTint)
+        : rawImg;
+      /* รองรับทั้ง <img> และ canvas จากย้อมสี (canvas ไม่มี naturalWidth → เดิมตกวงกลม) */
+      let iw = 0, ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      let halfSpriteW = r;
+      let spriteTopY = sy - 2 * r;
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(size / iw, size / ih, 1);
+        const drawW = iw * scale;
+        const drawH = ih * scale;
+        halfSpriteW = drawW / 2;
+        spriteTopY = sy - drawH;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - drawW / 2, sy - drawH, drawW, drawH);
+      } else {
+        const cy = sy - r;
+        ctx.fillStyle = isMe ? '#7aa2f7' : '#9ece6a';
+        ctx.beginPath();
+        ctx.arc(sx, cy, r, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = '#c0caf5';
+        ctx.lineWidth = 2;
+        ctx.stroke();
+        spriteTopY = cy - r;
+      }
+      ctx.fillStyle = '#c0caf5';
+      ctx.font = '10px sans-serif';
+      ctx.textAlign = 'center';
+      const nameBase = name || '';
+      const withScore = isGauntlet() && typeof gauntletScoreLabel === 'number' && gauntletScoreLabel >= 0
+        ? (nameBase + ' · ' + gauntletScoreLabel)
+        : nameBase;
+      ctx.fillText(withScore, sx, sy + 10);
+      if (isQuizCarry() && quizCarrySignPayload) {
+        drawQuizCarryHeldSignBoard(
+          sx, sy, halfSpriteW, spriteTopY,
+          quizCarrySignPayload.text, dir, quizCarrySignPayload.choiceIndex,
+          quizCarrySignPayload.imageUrl,
+          quizCarrySignPayload.imageElement,
+        );
+      }
+    }
+    function quizCarrySignForEntity(ent) {
+      if (!isQuizCarry() || !quizCarryCurrent || !ent || ent.quizCarryHeld == null) return null;
+      const idx = ent.quizCarryHeld;
+      const ch = quizCarryCurrent.choices;
+      if (!Array.isArray(ch) || idx < 0 || idx >= ch.length) return null;
+      const t = String(ch[idx] != null ? ch[idx] : '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, idx);
+      const gridHeldEl = findQuizCarryGridHeldImgForChoiceIndex(idx);
+      if (!t && !imgUrl && !gridHeldEl) return null;
+      return { text: t, choiceIndex: idx, imageUrl: imgUrl, imageElement: gridHeldEl || undefined };
+    }
+    const safeX = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const safeY = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    function peerVisualOffset(id) {
+      let h = 0;
+      for (let i = 0; i < (id || '').length; i++) h = (h * 31 + (id || '').charCodeAt(i)) >>> 0;
+      return { ax: ((h % 5) - 2) * 0.1, ay: ((Math.floor(h / 5) % 5) - 2) * 0.1 };
+    }
+    const { ch: sortCh } = getCharacterFootprintWH(mapData);
+    /** ใช้แถวกริด (floor y) เป็นหลัก — ลดการสลับลำดับวาดทุกเฟรมเมื่อ y เป็น float เลอร์ป */
+    function avatarDrawDepth(ent) {
+      return Math.floor(safeY(ent.y)) + sortCh;
+    }
+    if (!isStack() && !isSpaceShooter() && !isBalloonBoss()) {
+      let mt = me.playTint;
+      if (!mt || typeof mt.head !== 'string' || typeof mt.hair !== 'string' || typeof mt.body !== 'string') {
+        mt = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+        me.playTint = mt;
+      }
+      const meTag = isFrogger() ? (' (กบ) ' + froggerScore) : (isGauntlet() && meGauntletJumpTicks > 0 ? ' (กระโดด)' : (isJumpSurvive() && jumpSurviveEliminated ? ' (ตกรอบ)' : ' (คุณ)'));
+      const meWalking = isFrogger() ? false : (isGauntlet() ? (meGauntletJumpTicks > 0 || meGauntletJumpVis > 0.08) : !!me.isWalking);
+      const drawRows = [];
+      others.forEach((o, id) => {
+        if (!o) return;
+        drawRows.push({ isMe: false, id, o });
+      });
+      drawRows.push({ isMe: true, id: '__me', o: me });
+      drawRows.sort((a, b) => {
+        const da = avatarDrawDepth(a.o);
+        const db = avatarDrawDepth(b.o);
+        if (da !== db) return da - db;
+        const xa = Math.floor(safeX(a.o.x) * 4);
+        const xb = Math.floor(safeX(b.o.x) * 4);
+        if (xa !== xb) return xa - xb;
+        const sa = a.isMe ? '\uFFFFme' : String(a.id);
+        const sb = b.isMe ? '\uFFFFme' : String(b.id);
+        return sa < sb ? -1 : sa > sb ? 1 : 0;
+      });
+      drawRows.forEach((row) => {
+        if (!row.isMe) {
+          const id = row.id;
+          const o = row.o;
+          const off = isGauntlet() ? { ax: 0, ay: 0 } : peerVisualOffset(id);
+          const otherWalk = isGauntlet()
+            ? ((o.gauntletJumpTicks || 0) > 0 || (o.gauntletJumpVis || 0) > 0.08)
+            : (isPreviewBotId(id)
+              ? !!o.botIsWalking
+              : !!((o.tx != null && Math.abs((o.tx || o.x) - o.x) > 0.02) || (o.ty != null && Math.abs((o.ty || o.y) - o.y) > 0.02)));
+          const ot = o.playTint || playTintFromPeerId(id);
+          const faceDirOther = isGauntletFaceRightMapMno9kb07() ? 'right' : o.direction;
+          const botOut = isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated;
+          const peerName = botOut ? (o.nickname + ' (ตกรอบ)') : o.nickname;
+          if (botOut) ctx.save();
+          if (botOut) ctx.globalAlpha = 0.4;
+          drawAvatar(safeX(o.x) + off.ax, safeY(o.y) + off.ay, false, peerName, o.characterId, faceDirOther, otherWalk, ot, (o.gauntletJumpVis != null ? o.gauntletJumpVis : o.gauntletJumpTicks) || 0, o.gauntletScore || 0, quizCarrySignForEntity(o));
+          if (botOut) ctx.restore();
+        } else {
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.save();
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.globalAlpha = 0.4;
+          const faceDirMe = isGauntletFaceRightMapMno9kb07() ? 'right' : me.direction;
+          drawAvatar(safeX(me.x), safeY(me.y), true, me.nickname + meTag, me.characterId, faceDirMe, meWalking, mt, meGauntletJumpVis, me.gauntletScore || 0, quizCarrySignForEntity(me));
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.restore();
+        }
+      });
+    }
+    if (isFrogger()) {
+      ctx.fillStyle = '#7aa2f7';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      ctx.fillText('โหมดกบ | คะแนน: ' + froggerScore, 10, 24);
+    }
+    if (isJumpSurvive() && !useCyberPlayHud()) {
+      ctx.fillStyle = 'rgba(148, 226, 213, 0.95)';
+      ctx.font = '600 12px system-ui, "Segoe UI", "Kanit", sans-serif';
+      ctx.textAlign = 'left';
+      if (jumpSurviveEliminated) {
+        ctx.fillStyle = 'rgba(247, 118, 190, 0.95)';
+        ctx.fillText('คุณตกรอบแล้ว (ชนหรือหลุดเพดาน/พื้นจอ) · เล่นต่อไม่ได้ — ดูเพื่อนได้ · รอรอบใหม่หรือออกจากห้อง', 10, 22);
+      } else {
+        ctx.fillText('กระโดดให้รอด · Space / W / ↑ · A D / ← → · แพลตฟอร์มวน · ชนหรือหลุดบน/ล่างจอ = ตกรอบ (ดูเพื่อนต่อ)', 10, 22);
+      }
+    }
+    if (isGauntlet() && !useCyberPlayHud()) {
+      ctx.fillStyle = '#f7768e';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      if (isGauntletCrownHeistMapPlay()) {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน ' + (me.gauntletScore || 0) + ' · ชน -10 · ขอบซ้ายตาย · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · จบเกมมีโบนัสอันดับ + เกรดทีม', 10, 42);
+      } else {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน: ' + (me.gauntletScore || 0) + ' (ข้าม 1 ชิ้น +1) · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · ข้ามสำเร็จ → ขวา 1 + คะแนน · ชน → ซ้าย 1', 10, 42);
+      }
+      ctx.fillStyle = '#e0af68';
+      if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+        const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+        const mm = Math.floor(rem / 60);
+        const ss = rem % 60;
+        const clock = `${mm}:${String(ss).padStart(2, '0')}`;
+        ctx.fillText(`เหลือเวลา ${clock} · Time left ${clock}`, 10, 60);
+      } else if (gauntletRuntimeTimeLimitSec > 0) {
+        ctx.fillText('เวลา: กำลังซิงก์จากเซิร์ฟเวอร์... · Syncing timer...', 10, 60);
+      } else {
+        ctx.fillText('เวลา: ไม่จำกัด · No time limit (ตั้งได้ที่ Admin → เวลาเกม)', 10, 60);
+      }
+    }
+    if (isStack() && stackMini) {
+      if (previewFillBots) {
+        ctx.fillStyle = 'rgba(125, 220, 255, 0.9)';
+        ctx.font = '600 12px ui-sans-serif, system-ui, sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack · shared tower · Space / click = release on your turn', 10, 22);
+        drawStackPreviewCyberHud(ctx, canvas.width, canvas.height);
+      } else {
+        ctx.fillStyle = '#7dcfff';
+        ctx.font = 'bold 15px sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack | คะแนน ' + stackMini.score + ' · ชีวิต ' + stackMini.lives + ' · combo x' + (stackMini.combo || 0), 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / คลิก = ปล่อย', 10, 44);
+      }
+    }
+    if (isQuiz() || isQuizCarry() || isQuizBattle()) {
+      syncPlayQuizMapPanel();
+      syncQuizCarryEmbedQuestionStrip();
+    }
+    /* timeup ต้องซิงก์ทุกเฟรมแม้จบเซสชัน — อย่าให้อยู่ในเงื่อนไขด้านบนอย่างเดียว */
+    syncQuizCarryTimeupDeskLayerPosition();
+    if (previewFillBots && mapData && !useCyberPlayHud()) {
+      const human = countPlayHumans();
+      const bots = [...others.keys()].filter(isPreviewBotId).length;
+      ctx.save();
+      ctx.setTransform(1, 0, 0, 1, 0, 0);
+      ctx.fillStyle = 'rgba(26,27,38,0.78)';
+      const hudW = isStack() ? Math.min(canvas.width - 12, 520) : Math.min(canvas.width - 12, 320);
+      ctx.fillRect(6, canvas.height - 38, hudW, 30);
+      ctx.fillStyle = '#a9b1d6';
+      ctx.font = '12px sans-serif';
+      ctx.textAlign = 'left';
+      let line = 'ทดสอบ: คนจริง ' + human + ' + บอท ' + bots + ' (เป้า ' + previewTargetHeadcount + ' คน)';
+      if (isStack()) {
+        line += ' · ตึกร่วม + HUD ซ้าย/ขวา';
+      }
+      ctx.fillText(line, 12, canvas.height - 18);
+      ctx.restore();
+    }
+    if (isSpaceShooter()) {
+      drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isBalloonBoss()) {
+      drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isQuizCarry()) {
+      drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now()) {
+      syncQuizCarryEmbedCountdownLayout();
+    }
+    syncPlayCyberHud();
+    syncQuizCarryGrabButton();
+  }
+
+  document.addEventListener('keydown', (e) => {
+    if (isMovementKey(e.code) && isChatFocused()) return;
+    if ((isSpaceShooter() || isBalloonBoss()) && mapData && !isChatFocused()) {
+      if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+      }
+    }
+    if (isStack() && mapData && !isChatFocused()) {
+      if (e.code === 'Space') {
+        e.preventDefault();
+        tryHumanStackDrop();
+        return;
+      }
+      if (['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isGauntlet() && mapData && !isChatFocused()) {
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (isGauntletCrownPregameBlockingPlay()) return;
+        if (isGauntletCrownHeistMapPlay() && me.gauntletEliminated) return;
+        const now = Date.now();
+        if (now - lastGauntletJumpKey < 200) return;
+        lastGauntletJumpKey = now;
+        socket.emit('gauntlet-jump');
+        return;
+      }
+      if (['ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isJumpSurvive() && mapData && !isChatFocused()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (jumpSurviveEliminated) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (!e.repeat) jumpSurviveJumpQueued = true;
+        return;
+      }
+      if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isQuizBattle() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyE') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryOpenQuizBattleFromKey();
+        return;
+      }
+    }
+    if (isQuizCarry() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyF') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+        return;
+      }
+    }
+    keys[e.code] = true;
+    keys[e.key] = true;
+    if (['ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].includes(e.code)) e.preventDefault();
+    if (isFrogger() && mapData && !isChatFocused()) {
+      const now = Date.now();
+      if (now - lastFroggerKey < 280) return;
+      let dx = 0, dy = 0;
+      if (e.code === 'ArrowUp' || e.code === 'KeyW') { dy = -1; me.direction = 'up'; }
+      else if (e.code === 'ArrowDown' || e.code === 'KeyS') { dy = 1; me.direction = 'down'; }
+      else if (e.code === 'ArrowLeft' || e.code === 'KeyA') { dx = -1; me.direction = 'left'; }
+      else if (e.code === 'ArrowRight' || e.code === 'KeyD') { dx = 1; me.direction = 'right'; }
+      if (dx !== 0 || dy !== 0) {
+        const nx = Math.round(me.x) + dx, ny = Math.round(me.y) + dy;
+        if (nx >= 0 && nx < mapData.width && ny >= 0 && ny < mapData.height) {
+          const row = mapData.objects && mapData.objects[ny];
+          if (!row || row[nx] !== 1) {
+            me.x = nx; me.y = ny;
+            lastFroggerKey = now;
+            socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+            const lane = getLane(Math.floor(me.y));
+            if (lane && lane.type === 'goal') { froggerScore++; respawnFrogger(); }
+            else if (checkFroggerCollision()) respawnFrogger();
+          }
+        }
+      }
+    }
+  });
+  document.addEventListener('keyup', (e) => { keys[e.code] = false; keys[e.key] = false; });
+
+  let lastSend = 0;
+  function tick() {
+    if (!mapData) { requestAnimationFrame(tick); return; }
+    if (isStack()) {
+      stackTickFrame();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isJumpSurvive()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      jumpSurviveTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isSpaceShooter()) {
+      spaceShooterTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isBalloonBoss()) {
+      balloonBossTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isFrogger()) {
+      if (checkFroggerCollision()) respawnFrogger();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isGauntlet()) {
+      if (isGauntletCrownPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      me.isWalking = meGauntletJumpTicks > 0;
+      const stepGauntletJumpVis = (vis, tgt) => {
+        const t = Number(tgt) || 0;
+        let v = Number(vis) || 0;
+        const d = t - v;
+        const k = d < 0 ? 0.68 : 0.4;
+        return v + d * k;
+      };
+      meGauntletJumpVis = stepGauntletJumpVis(meGauntletJumpVis, meGauntletJumpTicks);
+      const mp = lerpGauntletEntityPos(me.x, me.y, me.tx, me.ty);
+      me.x = mp.nx;
+      me.y = mp.ny;
+      others.forEach((o) => {
+        const op = lerpGauntletEntityPos(o.x, o.y, o.tx, o.ty);
+        o.x = op.nx;
+        o.y = op.ny;
+        if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks || 0;
+        o.gauntletJumpVis = stepGauntletJumpVis(o.gauntletJumpVis, o.gauntletJumpTicks || 0);
+      });
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    /* บอท preview ขยับที่ o.x/o.y โดยตรง — ห้าม LERP กับ tx/ty เพราะ stepPreviewBots เคยตั้ง tx=ก่อนเดิน ทำให้โดนดึงถอย ~20%/เฟรม กระตุกและแทบไม่ไป */
+    others.forEach((o, id) => {
+      if (previewFillBots && isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * LERP;
+      if (o.ty != null) o.y += (o.ty - o.y) * LERP;
+    });
+    tickQuizCarryEmbedCountdown();
+    tickQuizCarryRoundTimers();
+    updateQuizCarryCarryPhaseHud();
+    stepPreviewBots();
+    if (isChatFocused()) {
+      me.isWalking = false;
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isQuizCarryEmbedLobbyBlockingMovement() || isQuizCarryEmbedCountdownBlockingMovement()) {
+      me.isWalking = false;
+      playPath = [];
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    let accX = 0, accY = 0;
+    let usePath = false;
+    const keyPressed = keys['ArrowUp'] || keys['KeyW'] || keys['ArrowDown'] || keys['KeyS'] || keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD'];
+    if (playPath.length > 0 && keyPressed) playPath = [];
+    if (playPath.length > 0) {
+      const way = playPath[0];
+      const dx = way.x - me.x, dy = way.y - me.y;
+      const dist = Math.sqrt(dx * dx + dy * dy);
+      if (dist <= PATH_ARRIVE_THRESH) {
+        playPath.shift();
+        /* ข้าม waypoint ที่ซ้ำตำแหน่ง — กัน acc=0 ทั้งที่ยังมี path (เดินขึ้น/ลงแล้วแอนิเมชันค้าง) */
+        while (playPath.length > 0) {
+          const w2 = playPath[0];
+          const ux = w2.x - me.x, uy = w2.y - me.y;
+          if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+          playPath.shift();
+        }
+        if (playPath.length === 0) {
+          me.isWalking = false;
+          me.x = Math.max(0, Math.min(w - 0.01, me.x));
+          me.y = Math.max(0, Math.min(h - 0.01, me.y));
+          enforceQuizBattleLaneOnMePlay();
+          const t = Date.now();
+          if (t - lastSend > 80) { lastSend = t; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+          draw();
+          requestAnimationFrame(tick);
+          return;
+        }
+        usePath = true;
+        const next = playPath[0];
+        accX = next.x - me.x;
+        accY = next.y - me.y;
+      } else {
+        usePath = true;
+        accX = dx;
+        accY = dy;
+      }
+      if (usePath && (accX !== 0 || accY !== 0)) {
+        if (Math.abs(accY) > Math.abs(accX)) me.direction = accY > 0 ? 'down' : 'up';
+        else me.direction = accX > 0 ? 'right' : 'left';
+      }
+    }
+    if (!usePath) {
+      if (keys['ArrowUp'] || keys['KeyW']) { accY = -1; me.direction = 'up'; }
+      if (keys['ArrowDown'] || keys['KeyS']) { accY = 1; me.direction = 'down'; }
+      if (keys['ArrowLeft'] || keys['KeyA']) { accX = -1; me.direction = 'left'; }
+      if (keys['ArrowRight'] || keys['KeyD']) { accX = 1; me.direction = 'right'; }
+    }
+    const preWalkX = me.x, preWalkY = me.y;
+    if (accX !== 0 || accY !== 0) {
+      const len = Math.sqrt(accX * accX + accY * accY) || 1;
+      const step = Math.min(MOVE_SPEED, len);
+      const nx = me.x + (accX / len) * step;
+      const ny = me.y + (accY / len) * step;
+      /** Quiz Battle + เส้นทาง: ห้ามเลื่อนแกนเดียว (slide) — ไม่งั้นเดินทแยงหลุดออกนอกเลนได้ */
+      const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobby(nx, ny, me.x, me.y)) {
+        me.x = nx;
+        me.y = ny;
+      } else if (!pathStrict) {
+        if (canWalkLikeLobby(nx, me.y, me.x, me.y)) {
+          me.x = nx;
+        } else if (canWalkLikeLobby(me.x, ny, me.x, me.y)) {
+          me.y = ny;
+        }
+      }
+    }
+    me.x = Math.max(0, Math.min(w - 0.01, me.x));
+    me.y = Math.max(0, Math.min(h - 0.01, me.y));
+    enforceQuizBattleLaneOnMePlay();
+    const movedThisTick = Math.abs(me.x - preWalkX) > 1e-5 || Math.abs(me.y - preWalkY) > 1e-5;
+    me.isWalking = !!(accX !== 0 || accY !== 0) || playPath.length > 0 || movedThisTick;
+    const now = Date.now();
+    if (now - lastSend > 80) { lastSend = now; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+    draw();
+    requestAnimationFrame(tick);
+  }
+
+  const chatForm = document.getElementById('chat-form');
+  if (chatForm) {
+    chatForm.addEventListener('submit', (e) => {
+      e.preventDefault();
+      const input = document.getElementById('chat-input');
+      const text = (input && input.value || '').trim();
+      if (text) { socket.emit('chat', text); if (input) input.value = ''; }
+    });
+  }
+  document.getElementById('btn-leave').addEventListener('click', () => {
+    socket.emit('leave-space');
+    const mid = params.get('map');
+    if (previewMode && mid) {
+      var edQ = '?id=' + encodeURIComponent(mid) + (editorEmbedReturn ? '&embed=1' : '');
+      window.location.replace(BASE + '/editor.html' + edQ);
+    } else {
+      window.location.replace(BASE + '/lobby.html');
+    }
+  });
+  (function wireQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (!ov) return;
+    ov.addEventListener('click', (e) => {
+      const t = e.target;
+      if (!t) return;
+      if (t.classList && t.classList.contains('quiz-battle-choice')) {
+        const idx = parseInt(t.getAttribute('data-idx'), 10);
+        if (Number.isFinite(idx) && idx >= 0 && idx <= 2) trySubmitQuizBattleChoice(idx);
+        return;
+      }
+      if (t.id === 'quiz-battle-mcq-close') {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+        return;
+      }
+      if (t.classList && t.classList.contains('quiz-battle-mcq-backdrop')) {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+      }
+    });
+  })();
+  (function wireQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    btn.addEventListener('click', (ev) => {
+      if (!isQuizCarry() || !mapData || isChatFocused()) return;
+      if (!btn.classList.contains('quiz-carry-grab-btn--active')) return;
+      ev.preventDefault();
+      if (myId == null) return;
+      tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+    });
+  })();
+
+  (function wireGauntletCrownHowtoPrimary() {
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn) return;
+    btn.addEventListener('click', () => {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'howto') return;
+        const humans = quizCarryPregameHumanIds();
+        if (!(humans.length === 1 || isMePlayHost())) return;
+        beginJumpSurviveMissionCountdownThenRun();
+        return;
+      }
+      if (!isGauntletCrownHeistMapPlay()) return;
+      if (gauntletCrownPregamePhase !== 'howto') return;
+      if (myId == null || !isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+      if (humansReady) {
+        if (humans.length === 1 && isMePlayHost()) {
+          beginGauntletCrownCountdownThenRun();
+          return;
+        }
+        socket.emit('gauntlet-crown-lobby-start', {}, (r) => {
+          if (!r || !r.ok) { /* ignore */ }
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !gauntletCrownLobbyReadyMap[sid];
+      gauntletCrownLobbyReadyMap[sid] = next;
+      updateGauntletCrownHowtoHud();
+      socket.emit('gauntlet-crown-lobby-ready', { ready: next });
+    });
+  })();
+
+  (function wireQuizCarryPregameOverlay() {
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    if (!primary) return;
+    primary.addEventListener('click', () => {
+      if (!quizCarryPregameActive || myId == null) return;
+      if (!isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+      if (humansReady) {
+        /* ผู้เล่นจริงคนเดียว + พรีวิว: ไม่ต้องรอ ACK เซิร์ฟ (ห้องที่ map บนเซิร์ฟยังไม่ใช่ quiz_carry จะเคยล้มเหลว) */
+        if (humans.length === 1 && isMePlayHost()) {
+          endQuizCarryEmbedPregameAndStart();
+          return;
+        }
+        socket.emit('quiz-carry-lobby-start', {}, (r) => {
+          if (!r || !r.ok) showQuizCarryToast((r && r.error) || 'START ไม่ได้', false);
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !quizCarryLobbyReadyMap[sid];
+      quizCarryLobbyReadyMap[sid] = next;
+      updateQuizCarryPregameHud();
+      socket.emit('quiz-carry-lobby-ready', { ready: next });
+    });
+  })();
+  window.addEventListener('beforeunload', () => socket.emit('leave-space'));
+  window.addEventListener('resize', () => {
+    if (!mapData || !canvas) return;
+    resizeCanvas();
+    draw();
+  });
+})();
diff --git a/www/html/Game/public/play.js.bak-20260606-120011 b/www/html/Game/public/play.js.bak-20260606-120011
new file mode 100644
index 0000000..28adaa5
--- /dev/null
+++ b/www/html/Game/public/play.js.bak-20260606-120011
@@ -0,0 +1,11738 @@
+(function () {
+  const BASE = '/Game';
+  /** แผงคำถามบนแมป quiz_carry — ไฟล์อยู่ public/img/quiz-carry */
+  const QUIZ_CARRY_MAP_FEEDBACK_IMG = {
+    correct: BASE + '/img/quiz-carry/icon-Correct.png',
+    incorrect: BASE + '/img/quiz-carry/icon-Incorrect.png',
+    scorePlus: BASE + '/img/quiz-carry/score+10.png',
+  };
+  const QUIZ_MAP_CARRY_FEEDBACK_MS = 1400;
+  const params = new URLSearchParams(window.location.search);
+  const spaceId = params.get('space');
+  const nick = params.get('nick') || 'ผู้เล่น';
+  const previewMode = params.get('preview') === '1';
+  const forceDefaultCharacter = params.get('defaultChar') === '1';
+  const editorEmbedReturn = params.get('editorEmbed') === '1';
+  const playMapIdFromQuery = (params.get('map') || '').trim();
+  /** mapId จาก join / game-start — ใช้จับฉาก crown เมื่อ URL ไม่มี ?map= */
+  let playSessionMapId = playMapIdFromQuery;
+  /** สรุปภารกิจแบบ mock (popup-result ฯลฯ) — ใช้เฉพาะฉากนี้จาก editor (id ใน URL เช่น editor.html?id=mnorwqx1) */
+  const quizCarryMissionSummaryMapId = 'mnorwqx1';
+  const quizCarryUseMissionSummaryOverlay = playMapIdFromQuery === quizCarryMissionSummaryMapId;
+  /** Gauntlet พรมแดง — ฉากนี้จาก editor (?map=mno9kb07): วาดตัวหันขวา + ใช้รูป lane/laser จาก game-timing */
+  const GAUNTLET_FACE_RIGHT_MAP_ID = 'mno9kb07';
+  /** Jump Survival ฉาก Jumper — UI สรุปภารกิจแบบ crown + รูปใน /img/Jumper/ (editor ?map=mnptfts2) */
+  const JUMP_SURVIVE_MISSION_MAP_ID = 'mnptfts2';
+  /** จนกว่าโหลด /api/characters — placeholder ชั่วคราวก่อน join */
+  const LEGACY_PLACEHOLDER_CHARACTER_ID = '';
+  let firstCharacterDefaultResolved = null;
+  const firstCharacterDefaultPromise = fetch(BASE + '/api/characters')
+    .then((r) => r.json())
+    .then((list) => {
+      if (Array.isArray(list) && list.length > 0 && list[0] && list[0].id) {
+        firstCharacterDefaultResolved = String(list[0].id);
+      } else {
+        firstCharacterDefaultResolved = '';
+      }
+    })
+    .catch(() => {
+      firstCharacterDefaultResolved = '';
+    });
+  const lobbyLevelParam = params.get('lobbyLevel');
+  const lobbyCaseParam = params.get('case');
+  if (lobbyLevelParam || lobbyCaseParam) {
+    try {
+      window.__detectiveLobbyMeta = { level: lobbyLevelParam, caseId: lobbyCaseParam };
+    } catch (e) { /* ignore */ }
+  }
+
+  const POST_CASE_LOBBY_MAP_ID = 'mn8nx46h';
+
+  function isDetectiveMinigamePlay() {
+    if (params.get('detectiveReturn') === '1') return true;
+    try {
+      return sessionStorage.getItem('detectiveMinigameReturn') === '1';
+    } catch (e) {
+      return false;
+    }
+  }
+
+  function buildRoomLobbyReturnHref() {
+    let h = 'room-lobby.html?space=' + encodeURIComponent(spaceId) + '&nick=' + encodeURIComponent(nick);
+    h += '&map=' + encodeURIComponent(POST_CASE_LOBBY_MAP_ID);
+    try {
+      const dr = localStorage.getItem('lastCreatedSpaceName');
+      if (dr) h += '&displayRoom=' + encodeURIComponent(dr);
+    } catch (e) { /* ignore */ }
+    try {
+      const meta = window.__detectiveLobbyMeta;
+      if (meta && meta.level != null && String(meta.level).trim()) {
+        h += '&lobbyLevel=' + encodeURIComponent(String(meta.level).trim());
+      }
+      if (meta && meta.caseId != null && String(meta.caseId).trim()) {
+        h += '&caseId=' + encodeURIComponent(String(meta.caseId).trim());
+      }
+    } catch (e2) { /* ignore */ }
+    try {
+      if (sessionStorage.getItem('detectiveMinigameReturn') === '1') {
+        h += '&detectiveReturn=1';
+        sessionStorage.removeItem('detectiveMinigameReturn');
+      }
+    } catch (e3) { /* ignore */ }
+    if (params.get('detectiveReturn') === '1' && h.indexOf('detectiveReturn') < 0) {
+      h += '&detectiveReturn=1';
+    }
+    return h;
+  }
+
+  function finishDetectiveMinigameAndReturnLobby() {
+    quizCarrySessionEnded = true;
+    try { sessionStorage.setItem('detectiveMinigameReturn', '1'); } catch (e) { /* ignore */ }
+    const go = function () {
+      window.location.href = buildRoomLobbyReturnHref();
+    };
+    if (socket && socket.connected) {
+      socket.emit('detective-minigame-finished', {}, function (res) {
+        if (res && res.ok) go();
+        else go();
+      });
+    } else {
+      go();
+    }
+  }
+  /** ทดสอบจากเอดิเตอร์: เติมบอทให้ครบจำนวน (รวมผู้เล่นจริง) — ?fillTotal=6 (ค่าเริ่ม 6) */
+  const previewFillBots = previewMode && editorEmbedReturn;
+  const previewTargetHeadcount = Math.min(24, Math.max(1, parseInt(params.get('fillTotal'), 10) || 6));
+  let detectiveCaseFillBots = false;
+  let detectiveBotSlotCount = 0;
+  function playBotsEnabled() {
+    return previewFillBots || detectiveCaseFillBots;
+  }
+  function playBotTargetHeadcount() {
+    if (previewFillBots) return previewTargetHeadcount;
+    if (detectiveCaseFillBots) return countPlayHumans() + detectiveBotSlotCount;
+    return countPlayHumans();
+  }
+  const PREVIEW_BOT_PREFIX = '__pv_bot_';
+  let previewBotSeq = 0;
+  /** Stack preview: บอทไม่วาบบนแผนที่ — ใช้ไฮไลต์แถบแข่งแทน */
+  let lastStackPreviewActorId = null;
+  let lastStackPreviewActorUntil = 0;
+  /** Stack preview: สลับตา Player 1 = มนุษย์, 2–6 = บอท (เฉพาะตาปัจจุบันเล่นได้) */
+  let stackTurnCount = 6;
+  let stackPreviewTurnOrder = null;
+  let stackPreviewTurnIndex = 0;
+  let stackPreviewBotThinkUntil = 0;
+
+  function rebuildStackPreviewTurnOrder() {
+    if (!playBotsEnabled() || !mapData || mapData.gameType !== 'stack') {
+      stackPreviewTurnOrder = null;
+      stackTurnCount = 1;
+      return;
+    }
+    const bots = [...others.keys()].filter(isPreviewBotId).sort();
+    stackTurnCount = Math.max(1, Math.min(12, playBotTargetHeadcount()));
+    stackPreviewTurnOrder = [{ kind: 'human', seat: 1 }];
+    for (let i = 0; i < stackTurnCount - 1; i++) {
+      stackPreviewTurnOrder.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+    }
+    stackPreviewTurnIndex = 0;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function advanceStackPreviewTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return;
+    stackPreviewTurnIndex = (stackPreviewTurnIndex + 1) % stackTurnCount;
+    stackPreviewBotThinkUntil = 0;
+  }
+
+  function isStackPreviewHumanTurn() {
+    if (!playBotsEnabled() || !stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return true;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return !!(cur && cur.kind === 'human');
+  }
+
+  function getStackPreviewCurrentSeat() {
+    if (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount) return 1;
+    const cur = stackPreviewTurnOrder[stackPreviewTurnIndex];
+    return cur && cur.seat ? cur.seat : stackPreviewTurnIndex + 1;
+  }
+  if (!spaceId) { window.location.replace(BASE + '/lobby.html'); return; }
+
+  const socket = io({ path: BASE + '/socket.io' });
+  const canvas = document.getElementById('game-canvas');
+  const ctx = canvas.getContext('2d');
+  let mapData = null, tileSize = 32, myId = null;
+  let stackMini = null;
+  let stackFall = null;
+  let lastStackTickMs = performance.now();
+  let mapBackgroundImg = null;
+  /** โหลดจาก mapData.gridImageLibrary — ดัชนีตรงกับ gridImageCells[y][x] */
+  let mapGridImageImgs = [];
+  let mapGridImageHeldImgs = [];
+  let me = { x: 1, y: 1, direction: 'down', nickname: nick, isWalking: false, playTint: null, gauntletScore: 0, gauntletEliminated: false, tx: null, ty: null, quizCarryHeld: null };
+  const others = new Map();
+  /** Stack preview HUD: เทอร์มินัลล็อก (cyber UI) */
+  const STACK_PREVIEW_HUD_LOG_MAX = 8;
+  let stackPreviewHudLog = [];
+  function stackPreviewPushHudLog(line) {
+    if (!previewFillBots) return;
+    stackPreviewHudLog.push(String(line || '').slice(0, 96));
+    while (stackPreviewHudLog.length > STACK_PREVIEW_HUD_LOG_MAX) stackPreviewHudLog.shift();
+  }
+  function stackPreviewLogStackDrop(hit, actor) {
+    if (!previewFillBots || !hit) return;
+    const bid = actor && actor.botId;
+    let nm = 'NODE';
+    if (actor && actor.human) nm = (me.nickname || 'YOU').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    else if (bid && others.get(bid)) nm = String(others.get(bid).nickname || 'BOT').toUpperCase().replace(/\s+/g, '_').slice(0, 12);
+    if (hit.miss) stackPreviewPushHudLog(`>>> ${nm}: SECTOR_MISS`);
+    else if (hit.perfect) stackPreviewPushHudLog(`>>> ${nm}: PERFECT +${hit.pts} SYN`);
+    else stackPreviewPushHudLog(`>>> ${nm}: LOCK +${hit.pts}`);
+  }
+  const keys = {};
+  const characterImages = {};
+  function createDefaultAvatarImg() {
+    const c = document.createElement('canvas');
+    c.width = 64; c.height = 64;
+    const ctx = c.getContext('2d');
+    ctx.fillStyle = '#7aa2f7';
+    ctx.beginPath();
+    ctx.arc(32, 22, 14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#9ece6a';
+    ctx.beginPath();
+    ctx.arc(32, 48, 18, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#1a1b26';
+    ctx.beginPath();
+    ctx.arc(28, 20, 3, 0, Math.PI * 2);
+    ctx.arc(36, 20, 3, 0, Math.PI * 2);
+    ctx.fill();
+    const img = new Image();
+    img.src = c.toDataURL('image/png');
+    return img;
+  }
+  const defaultAvatarImg = createDefaultAvatarImg();
+  const characterAnimations = {};
+  const characterIdleAnimations = {};
+  const CHARACTER_ANIM_FRAMES = 4;
+  const CHARACTER_ANIM_FRAME_MS = 200;
+
+  /** จังหวะเดินลูปคงที่ 4 เฟรม — อย่า modulo ด้วยจำนวนเฟรมที่โหลดได้แล้ว (ไม่งั้นเฟรมกลางหาย/ลูปสั้นลง) */
+  function walkAnimPhaseIndex(now, isWalking) {
+    const t = isWalking ? (typeof now === 'number' ? now : Date.now()) : 0;
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  /** เลือกเฟรมสูงสุดที่โหลดแล้วและ <= phase (เดิมถอย) */
+  function pickLoadedWalkFrameIndex(anim, phase) {
+    if (!anim || !anim.frames || !anim.frames.length) return -1;
+    const maxK = Math.min(phase, anim.frames.length - 1, CHARACTER_ANIM_FRAMES - 1);
+    for (let k = maxK; k >= 0; k--) {
+      const f = anim.frames[k];
+      if (f && f.complete && f.naturalWidth) return k;
+    }
+    return -1;
+  }
+
+  /** ตัวละครอัปโหลดจากระบบมักเป็น char- + ตัวเลข (อาจมี suffix) — ไม่มี idle strip / idle layer ครบทุกทิศ */
+  function isUploadedCharAssetId(id) {
+    if (!id) return false;
+    const s = String(id).trim();
+    return /^char-\d/i.test(s);
+  }
+
+  function useMultiFrameIdleSpriteSheets(id) {
+    if (!id) return true;
+    return !isUploadedCharAssetId(id);
+  }
+
+  function ensureCharacterIdleAnim(id, dir) {
+    const d = dir || 'down';
+    /* char-* ไม่มี *_idle_0.png — ใช้ strip เดิน dir_0..3 เป็น idle ต่อทิศ (มีลูป) แทนรูปเดียวที่มักไม่มี */
+    if (!useMultiFrameIdleSpriteSheets(id)) {
+      const key = String(id) + '_' + d + '_idle';
+      let anim = characterIdleAnimations[key];
+      if (!anim) {
+        anim = { frames: [], fallback: null };
+        characterIdleAnimations[key] = anim;
+        const enc = encodeURIComponent(id);
+        for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+          const img = new Image();
+          img.src = BASE + '/img/characters/' + enc + '_' + d + '_' + i + '.png';
+          anim.frames.push(img);
+        }
+        const fb = new Image();
+        fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+        anim.fallback = fb;
+      }
+      return anim;
+    }
+    const key = id + '_' + d + '_idle';
+    let anim = characterIdleAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterIdleAnimations[key] = anim;
+      const enc = encodeURIComponent(id);
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + enc + '_' + d + '_idle_' + i + '.png';
+        anim.frames.push(img);
+      }
+      const fb = new Image();
+      fb.src = BASE + '/img/characters/' + enc + '_' + d + '_idle.png';
+      anim.fallback = fb;
+    }
+    return anim;
+  }
+
+  /** ลูป idle ขณะยืน — ใช้จังหวะเวลาเหมือนเดิน (CHARACTER_ANIM_FRAME_MS) */
+  function idleAnimPhaseIndex(now) {
+    const t = typeof now === 'number' ? now : Date.now();
+    return Math.floor(t / CHARACTER_ANIM_FRAME_MS) % CHARACTER_ANIM_FRAMES;
+  }
+
+  function characterIdleSpritesVisible(id, dir) {
+    if (!id) return false;
+    const anim = ensureCharacterIdleAnim(id, dir || 'down');
+    if (anim.fallback && anim.fallback.complete && anim.fallback.naturalWidth) return true;
+    for (let i = 0; i < anim.frames.length; i++) {
+      const f = anim.frames[i];
+      if (f && f.complete && f.naturalWidth) return true;
+    }
+    return false;
+  }
+
+  /** สุ่มสีตามเลเยอร์เดียวกับ character.html: bodyColor / hairColor / headColor (ลำดับซ้อนเหมือน composeLayeredFrame) */
+  const PLAY_LAYER_ORDER = ['shadow', 'bodyColor', 'bodyStroke', 'headColor', 'headStroke', 'hairColor', 'hairStroke', 'face'];
+  const PLAY_LAYER_TINT_KEY = { bodyColor: 'body', headColor: 'head', hairColor: 'hair' };
+  const PLAY_TINT_HEAD = ['#eaa78a', '#fbd5c4', '#fae9e1'];
+  const PLAY_TINT_HAIR = ['#d72520', '#ef8508', '#efe237', '#5bb443', '#2585cb', '#3f4ead', '#b53fd6', '#ef62b9'];
+  const PLAY_TINT_BODY = ['#fb4941', '#feaa11', '#fefe6d', '#adfd85', '#45fbfd', '#799afe', '#f87dff', '#fec1fe'];
+  const playLayerMode = {};
+  /** คิว probe ครบ up/down/left/right แล้ว — กันทิศที่ไม่มีไฟล์ layer ไปตก fallback แถบทั้งทั้งที่ทิศอื่นมี */
+  const playLayerAllDirsQueued = {};
+  /** จาก GET /api/characters — hasLayerFiles สแกนจากชื่อไฟล์จริง (แม่นกว่า probe จาก <img> อย่างเดียว) */
+  let playCharLayerApi = { status: 'idle', map: null };
+  /** id → Set เลเยอร์ที่มีไฟล์จริง (จาก GET /api/characters) — กันยิง URL เลเยอร์ที่ไม่เคยอัปโหลด → 404 รกคอนโซล */
+  const playCharDiskLayersById = Object.create(null);
+
+  function ensurePlayCharLayerListFetch() {
+    if (playCharLayerApi.status !== 'idle') return;
+    playCharLayerApi.status = 'loading';
+    fetch(BASE + '/api/characters')
+      .then((r) => r.json())
+      .then((list) => {
+        const map = Object.create(null);
+        if (Array.isArray(list)) {
+          list.forEach((c) => {
+            if (!c || !c.id) return;
+            map[c.id] = !!c.hasLayerFiles;
+            if (Array.isArray(c.layers) && c.layers.length) {
+              const st = new Set();
+              c.layers.forEach((n) => {
+                if (typeof n === 'string' && n.length) st.add(n);
+              });
+              if (st.size) playCharDiskLayersById[c.id] = st;
+              else delete playCharDiskLayersById[c.id];
+            } else {
+              delete playCharDiskLayersById[c.id];
+            }
+          });
+        }
+        playCharLayerApi = { status: 'done', map };
+      })
+      .catch(() => {
+        playCharLayerApi = { status: 'done', map: Object.create(null) };
+      });
+  }
+
+  /** @returns {boolean|null} true/false จาก API, null = ยังไม่โหลดหรือไม่มีรายการ id นี้ */
+  function playCharLayerFromApi(characterId) {
+    if (playCharLayerApi.status !== 'done' || !characterId) return null;
+    if (Object.prototype.hasOwnProperty.call(playCharLayerApi.map, characterId)) {
+      return playCharLayerApi.map[characterId];
+    }
+    return null;
+  }
+
+  /** ถ้าเซิร์ฟเวอร์ส่งรายชื่อเลเยอร์ที่มีบนดิสก์ — ไม่โหลดเลเยอร์อื่น (ลด 404) */
+  function playCharDiskLayersSet(characterId) {
+    if (!characterId || playCharLayerApi.status !== 'done') return null;
+    const s = playCharDiskLayersById[characterId];
+    return s && s.size ? s : null;
+  }
+
+  const playLayerImageCache = new Map();
+  const playLayerCompositeCache = new Map();
+  function pickRandomPlayTint() {
+    return {
+      head: PLAY_TINT_HEAD[Math.floor(Math.random() * PLAY_TINT_HEAD.length)],
+      hair: PLAY_TINT_HAIR[Math.floor(Math.random() * PLAY_TINT_HAIR.length)],
+      body: PLAY_TINT_BODY[Math.floor(Math.random() * PLAY_TINT_BODY.length)],
+    };
+  }
+
+  /** FNV-1a 32-bit — แยกดัชนี head/hair/body ได้กระจายกว่า hash*31 เดิม (กันบอท __pv_bot_N สีซ้ำ) */
+  function hashStringFnv1a32(str) {
+    let h = 2166136261 >>> 0;
+    const s = String(str || '');
+    for (let i = 0; i < s.length; i++) {
+      h ^= s.charCodeAt(i);
+      h = Math.imul(h, 16777619) >>> 0;
+    }
+    return h >>> 0;
+  }
+
+  function playTintFromPeerId(id) {
+    const s = String(id || 'x');
+    const h0 = hashStringFnv1a32(s);
+    const h1 = hashStringFnv1a32(s + '\n1hair');
+    const h2 = hashStringFnv1a32(s + '\n2body');
+    return {
+      head: PLAY_TINT_HEAD[h0 % PLAY_TINT_HEAD.length],
+      hair: PLAY_TINT_HAIR[h1 % PLAY_TINT_HAIR.length],
+      body: PLAY_TINT_BODY[h2 % PLAY_TINT_BODY.length],
+    };
+  }
+
+  function hexToRgb01(hex) {
+    const h = (hex || '').replace('#', '').trim();
+    if (h.length !== 6) return [1, 1, 1];
+    return [
+      parseInt(h.slice(0, 2), 16) / 255,
+      parseInt(h.slice(2, 4), 16) / 255,
+      parseInt(h.slice(4, 6), 16) / 255,
+    ];
+  }
+
+  function tintPlayLayerImageData(imageData, tintHex) {
+    const rgb = hexToRgb01(tintHex);
+    const tr = rgb[0], tg = rgb[1], tb = rgb[2];
+    const d = imageData.data;
+    for (let i = 0; i < d.length; i += 4) {
+      if (d[i + 3] < 12) continue;
+      const r = d[i], g = d[i + 1], b = d[i + 2];
+      const L = (0.299 * r + 0.587 * g + 0.114 * b) / 255;
+      d[i] = Math.min(255, Math.round(tr * 255 * L));
+      d[i + 1] = Math.min(255, Math.round(tg * 255 * L));
+      d[i + 2] = Math.min(255, Math.round(tb * 255 * L));
+    }
+  }
+
+  function drawPlayTintedLayer(ctx, w, h, img, tintHex) {
+    if (!tintHex) {
+      ctx.drawImage(img, 0, 0, w, h);
+      return;
+    }
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const x = c.getContext('2d');
+    x.drawImage(img, 0, 0, w, h);
+    try {
+      const idata = x.getImageData(0, 0, w, h);
+      tintPlayLayerImageData(idata, tintHex);
+      x.putImageData(idata, 0, 0);
+    } catch (e) {
+      x.clearRect(0, 0, w, h);
+      x.drawImage(img, 0, 0, w, h);
+    }
+    ctx.drawImage(c, 0, 0, w, h);
+  }
+
+  function ensurePlayLayerImage(url) {
+    let img = playLayerImageCache.get(url);
+    if (!img) {
+      img = new Image();
+      img.src = url;
+      playLayerImageCache.set(url, img);
+    }
+    return img;
+  }
+
+  /** ลำดับลอง URL: เฟรมปัจจุบันแบบ multi → เฟรม 0 → แบบ single (ไม่มี _0_) เพื่อกันชื่อไฟล์ไม่ตรงกับที่เซิร์ฟเวอร์เขียน */
+  function layerUrlCandidates(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir;
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  /** เลเยอร์ idle: id_<dir>_idle_<n>_layer_<name>.png หรือ id_<dir>_idle_layer_<name>.png */
+  function layerUrlCandidatesIdle(id, dir, layerName, frameIndex) {
+    const enc = encodeURIComponent(id);
+    const base = BASE + '/img/characters/' + enc + '_' + dir + '_idle';
+    const out = [];
+    function add(u) {
+      if (out.indexOf(u) === -1) out.push(u);
+    }
+    add(base + '_' + frameIndex + '_layer_' + layerName + '.png');
+    if (frameIndex !== 0) add(base + '_0_layer_' + layerName + '.png');
+    add(base + '_layer_' + layerName + '.png');
+    return out;
+  }
+
+  function shadowUrlCandidates(id, dir, frameIndex) {
+    const c = layerUrlCandidates(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  function shadowUrlCandidatesIdle(id, dir, frameIndex) {
+    const c = layerUrlCandidatesIdle(id, dir, 'shadow', frameIndex);
+    const def = BASE + '/img/default-shadow-' + dir + '.png';
+    if (c.indexOf(def) === -1) c.push(def);
+    return c;
+  }
+
+  /** ลองทีละ URL — อย่า set src พร้อมกันหลายรูป (เดิมทำให้ legacy `id_dir_layer_x` โดน 404 ทุกเลเยอร์ทุกทิศทั้งที่มีแค่ `id_dir_0_layer_x`) */
+  function resolvePlayLayerImage(urls) {
+    for (let i = 0; i < urls.length; i++) {
+      const img = ensurePlayLayerImage(urls[i]);
+      if (!img.complete) return { status: 'pending' };
+      if (img.naturalWidth > 0) return { status: 'ok', img };
+    }
+    return { status: 'missing' };
+  }
+
+  function ensurePlayLayerProbesAllDirections(characterId) {
+    if (!characterId || playLayerAllDirsQueued[characterId]) return;
+    playLayerAllDirsQueued[characterId] = true;
+    ['up', 'down', 'left', 'right'].forEach((d) => ensurePlayLayerProbe(characterId, d));
+  }
+
+  function playCharAnyDirectionLayered(characterId) {
+    if (!characterId) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => playLayerMode[characterId + '|' + d] === 'layered');
+  }
+
+  /** รอเฉพาะตอนยังไม่เจอ layered เลย — ถ้ามีทิศหนึ่ง layered แล้ว ไม่ต้องรอทิศอื่น */
+  function playCharLayerDiscoveryPending(characterId) {
+    if (!characterId) return true;
+    const api = playCharLayerFromApi(characterId);
+    if (api === true || api === false) return false;
+    if (playCharAnyDirectionLayered(characterId)) return false;
+    return ['up', 'down', 'left', 'right'].some((d) => {
+      const m = playLayerMode[characterId + '|' + d];
+      return m === undefined || m === 'pending';
+    });
+  }
+
+  function ensurePlayLayerProbe(characterId, dir) {
+    const key = characterId + '|' + dir;
+    if (playLayerMode[key] !== undefined && playLayerMode[key] !== 'pending') return;
+    if (playLayerMode[key] === 'pending') return;
+    playLayerMode[key] = 'pending';
+    const cands = layerUrlCandidates(characterId, dir, 'bodyColor', 0);
+    let ci = 0;
+    function tryNextProbe() {
+      if (playLayerMode[key] !== 'pending') return;
+      if (ci >= cands.length) {
+        playLayerMode[key] = 'none';
+        return;
+      }
+      const url = cands[ci++];
+      const img = ensurePlayLayerImage(url);
+      const fin = () => {
+        if (playLayerMode[key] !== 'pending') return;
+        if (img.naturalWidth > 0) {
+          playLayerMode[key] = 'layered';
+          return;
+        }
+        tryNextProbe();
+      };
+      img.onload = fin;
+      img.onerror = fin;
+      if (img.complete) fin();
+    }
+    tryNextProbe();
+  }
+
+  function getCharacterAnimFrameIndex(id, dir, now, isWalking) {
+    if (!id) return 0;
+    const key = id + '_' + dir;
+    const anim = characterAnimations[key];
+    if (!anim) return 0;
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    return fi >= 0 ? fi : 0;
+  }
+
+  function tryComposePlayLayersFromFiles(rawImg, id, dir, frameIndex, tint, opts) {
+    const useIdle = opts && opts.idle;
+    if (!rawImg || !rawImg.naturalWidth || !rawImg.naturalHeight) return null;
+    const w = rawImg.naturalWidth, h = rawImg.naturalHeight;
+    const c = document.createElement('canvas');
+    c.width = w;
+    c.height = h;
+    const cctx = c.getContext('2d');
+    let anyTintColorLayer = false;
+    let skippedShadowWhilePending = false;
+    const diskLayers = playCharDiskLayersSet(id);
+    /* ยืน (opts.idle): ลอง compose จาก *_idle_*_layer_* เหมือนหน้า character upload — รวม char-* ที่อัปโหลด idle เลเยอร์; ถ้าไม่มีไฟล์จะ missing → ไม่มีเลเยอร์ย้อม → getPlayTintedAvatarSource fallback ไป walk compose */
+    const idleLayerStripes = !!useIdle;
+    const resDir = dir;
+    const resFi = frameIndex;
+    for (let li = 0; li < PLAY_LAYER_ORDER.length; li++) {
+      const layerName = PLAY_LAYER_ORDER[li];
+      if (diskLayers && layerName !== 'shadow' && !diskLayers.has(layerName)) continue;
+      /* char-* หันหลัง (up): ไม่มี face ทิศนี้ — ข้ามกันตาหน้าซ้อนหลังหัว; ซ้าย/ขวา/หน้าใช้ face ตามทิศได้ */
+      if (layerName === 'face' && isUploadedCharAssetId(id) && dir === 'up') {
+        continue;
+      }
+      let urls;
+      if (layerName === 'shadow') {
+        urls = idleLayerStripes
+          ? shadowUrlCandidatesIdle(id, dir, frameIndex)
+          : shadowUrlCandidates(id, resDir, resFi);
+      } else {
+        urls = idleLayerStripes
+          ? layerUrlCandidatesIdle(id, dir, layerName, frameIndex)
+          : layerUrlCandidates(id, resDir, layerName, resFi);
+      }
+      const r = resolvePlayLayerImage(urls);
+      /* เงาโหลดช้า/404 บ่อย — อย่าให้บล็อกทั้งคอมโพส (ไม่งั้นตกไป fallback แถบแนวตั้งแทนเลเยอร์จริง) */
+      if (r.status === 'pending' && layerName === 'shadow') {
+        skippedShadowWhilePending = true;
+        continue;
+      }
+      if (r.status === 'pending') return null;
+      if (r.status === 'missing') continue;
+      const tintHex = PLAY_LAYER_TINT_KEY[layerName] ? tint[PLAY_LAYER_TINT_KEY[layerName]] : null;
+      if (PLAY_LAYER_TINT_KEY[layerName]) anyTintColorLayer = true;
+      drawPlayTintedLayer(cctx, w, h, r.img, tintHex);
+    }
+    /* ถ้าโหลดได้แต่ไม่มีเลเยอร์สีเลย จะเหลือแต่ stroke → ตัวขาว — ใช้ PNG รวมแทน */
+    if (!anyTintColorLayer) return null;
+    return { canvas: c, skipCache: skippedShadowWhilePending };
+  }
+
+  function getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, tint) {
+    if (!tint || !characterId || !rawImg) return rawImg;
+    ensurePlayCharLayerListFetch();
+    ensurePlayLayerProbesAllDirections(characterId);
+    const dirn = dir || 'down';
+    const frameIndexWalk = getCharacterAnimFrameIndex(characterId, dirn, timeMs, isWalking);
+    const idlePhase = idleAnimPhaseIndex(typeof timeMs === 'number' ? timeMs : Date.now());
+
+    if (playCharLayerDiscoveryPending(characterId)) return rawImg;
+
+    const apiFlag = playCharLayerFromApi(characterId);
+    /* เหมือนเดิม: มีเลเยอร์แยกไฟล์เมื่อ API บอก hasLayerFiles หรือ probe เจอ — gen สีทำบน canvas จาก *_layer_* เท่านั้น */
+    const charHasLayerFiles = apiFlag === true
+      || (apiFlag == null && playCharAnyDirectionLayered(characterId));
+
+    /* มี PNG idle รวม — ใช้เมื่อไม่มีระบบเลเยอร์สี (ถ้ามีเลเยอร์ต้อง compose ไม่ return raw ขาว) */
+    if (!charHasLayerFiles && !isWalking && characterIdleSpritesVisible(characterId, dirn)) {
+      return rawImg;
+    }
+    const cacheKeyWalk = [characterId, dirn, frameIndexWalk, tint.head, tint.hair, tint.body, 'ct3'].join('|');
+
+    if (charHasLayerFiles) {
+      if (!isWalking) {
+        const composeFrame = isUploadedCharAssetId(characterId) ? 0 : idlePhase;
+        const cacheKeyIdle = [characterId, dirn, composeFrame, tint.head, tint.hair, tint.body, 'ct3', 'idleL'].join('|');
+        const hitI = playLayerCompositeCache.get(cacheKeyIdle);
+        if (hitI) return hitI;
+        const packI = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, composeFrame, tint, { idle: true });
+        if (packI && packI.canvas) {
+          if (!packI.skipCache) playLayerCompositeCache.set(cacheKeyIdle, packI.canvas);
+          return packI.canvas;
+        }
+      }
+      const hit = playLayerCompositeCache.get(cacheKeyWalk);
+      if (hit) return hit;
+      const pack = tryComposePlayLayersFromFiles(rawImg, characterId, dirn, frameIndexWalk, tint, { idle: false });
+      if (pack && pack.canvas) {
+        if (!pack.skipCache) playLayerCompositeCache.set(cacheKeyWalk, pack.canvas);
+        return pack.canvas;
+      }
+      return rawImg;
+    }
+
+    /*
+     * ไม่มีไฟล์เลเยอร์ตาม API/probe — แสดง PNG รวม (ไม่ย้อมทั้งตัว: ไม่เหมือนระบบ gen สีแบบเลเยอร์เดิม)
+     */
+    return rawImg;
+  }
+
+  function getCharacterImg(id, direction) {
+    if (!id) return null;
+    const key = id + '_' + (direction || 'down');
+    if (characterImages[key]) return characterImages[key];
+    const img = new Image();
+    img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + (direction || 'down') + '.png';
+    characterImages[key] = img;
+    return img;
+  }
+
+  function getCharacterFrame(id, direction, now, isWalking) {
+    if (!id) return null;
+    const dir = direction || 'down';
+    const t = typeof now === 'number' ? now : Date.now();
+    if (!isWalking) {
+      const idleAnim = ensureCharacterIdleAnim(id, dir);
+      let idlePhase = idleAnimPhaseIndex(t);
+      if (isUploadedCharAssetId(id)) idlePhase = 0;
+      const idleFi = pickLoadedWalkFrameIndex(idleAnim, idlePhase);
+      if (idleFi >= 0) return idleAnim.frames[idleFi];
+      const idfb = idleAnim.fallback;
+      if (idfb && idfb.complete && idfb.naturalWidth) return idfb;
+    }
+    const key = id + '_' + dir;
+    let anim = characterAnimations[key];
+    if (!anim) {
+      anim = { frames: [], fallback: null };
+      characterAnimations[key] = anim;
+      for (let i = 0; i < CHARACTER_ANIM_FRAMES; i++) {
+        const img = new Image();
+        img.src = BASE + '/img/characters/' + encodeURIComponent(id) + '_' + dir + '_' + i + '.png';
+        anim.frames.push(img);
+      }
+      anim.fallback = getCharacterImg(id, dir);
+    }
+    const phase = walkAnimPhaseIndex(now, isWalking);
+    const fi = pickLoadedWalkFrameIndex(anim, phase);
+    if (fi >= 0) return anim.frames[fi];
+    const fb = anim.fallback;
+    if (fb && fb.complete && fb.naturalWidth) return fb;
+    return null;
+  }
+
+  function getAvatarImg(characterId, direction, now, isWalking) {
+    const img = characterId ? getCharacterFrame(characterId, direction, now, isWalking) : null;
+    if (img) return img;
+    return defaultAvatarImg;
+  }
+  function getStoredCharacterId() {
+    try {
+      let v = localStorage.getItem('gameCharacterId');
+      if (v === 'Chatest') v = ''; // legacy placeholder — ไม่มี sprite จริง
+      if (v) return v;
+    } catch (e) { /* ignore */ }
+    if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+    return firstCharacterDefaultResolved || '';
+  }
+  function getPlayCharacterId() {
+    if (forceDefaultCharacter) {
+      if (firstCharacterDefaultResolved === null) return LEGACY_PLACEHOLDER_CHARACTER_ID;
+      return firstCharacterDefaultResolved || '';
+    }
+    return getStoredCharacterId();
+  }
+  const MOVE_SPEED = 0.15;
+  const PATH_ARRIVE_THRESH = 0.15;
+
+  function isMovementKey(code) {
+    return ['KeyW','KeyA','KeyS','KeyD','ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].indexOf(code) !== -1;
+  }
+  function isChatFocused() {
+    return false;
+  }
+  let zoom = 1.4;
+  let froggerScore = 0;
+  let lastFroggerKey = 0;
+  let gauntletObstacles = [];
+  /** อินเทอร์โพเลตการวาด obstacle ระหว่างแพ็กเก็ต sync (~220ms) */
+  let gauntletObsRenderPrev = [];
+  let gauntletObsRenderNext = [];
+  let gauntletObsBlendT0 = 0;
+  let meGauntletJumpTicks = 0;
+  /** ค่าที่ใช้วาดการยกตัว (เลอร์ปจาก meGauntletJumpTicks ให้โค้งกระโดดไม่กระตุก) */
+  let meGauntletJumpVis = 0;
+  /** ซิงก์จากเซิร์ฟเวอร์ (gauntlet-sync / GET /api/game-timing) */
+  let gauntletRuntimeTickMs = 220;
+  let gauntletRuntimeJumpTicks = 16;
+  /** Stack: รอบสวิงต่อวินาที — จาก GET /api/game-timing · ค่าน้อย = สวิงช้า */
+  let playStackSwingHz = 0.55;
+  /** Stack: ความกว้างบล็อก (tile) — null = คำนวณจากโซนลงบนแผนที่ */
+  let playStackBlockWidthTiles = null;
+  /** กระโดดให้รอด: ความสูงกระโดด = ทวีคูณ × ความสูงตัว (ch×tile) — จาก GET /api/game-timing */
+  let playJumpSurviveJumpHeightMult = 1.5;
+  /** จำกัดเวลารอบภารกิจกระโดดขึ้นแท่น (วินาที) — จาก GET /api/game-timing; 0 = ใช้ค่าเริ่ม 60 ในเกม */
+  let playJumpSurviveMissionTimeSec = 0;
+  /** ยิงยานอวกาศ (space_shooter): เวลารอบจาก game-timing; 0 = ใช้ค่าเริ่ม 90 ในเกมถ้าแมปไม่ทับ */
+  let playSpaceShooterMissionTimeSec = 0;
+  /** 0 = ไม่จำกัด — จาก game-timing / gauntlet-sync (พรมแดง Gauntlet เท่านั้น) */
+  let gauntletRuntimeTimeLimitSec = 0;
+  /** เวลาสิ้นสุดรอบ (epoch ms) จากเซิร์ฟเวอร์ — null = ไม่จับเวลา */
+  let gauntletEndsAtMs = null;
+  /** Crown (mno9kb07): เซิร์ฟยังไม่ปล่อยรัน — หยุด tick / เวลา */
+  let gauntletCrownRunHeldRemote = false;
+  /** null | 'howto' | 'countdown' | 'live' — พรีรันก่อน GO */
+  let gauntletCrownPregamePhase = null;
+  let gauntletCrownLobbyReadyMap = {};
+  let gauntletCrownCountdownTimer = null;
+  let lastGauntletJumpKey = 0;
+  /** รูป lane: หลาย URL สุ่มตาม id คงที่ · laser: แยกบน/ล่าง/เส้น + สี/ความหนา */
+  let gauntletLaneImageUrls = [];
+  let gauntletLaserTopUrl = '';
+  let gauntletLaserBottomUrl = '';
+  let gauntletLaserLineUrl = '';
+  let gauntletLaserFillColor = 'rgba(140,230,255,0.42)';
+  let gauntletLaserStrokeColor = 'rgba(255,220,255,0.9)';
+  let gauntletLaserLineWidthPx = 2;
+  const gauntletAssetImageCache = new Map();
+
+  /** แปลง URL จาก Admin/game-timing ให้โหลดได้ (nginx เสิร์ฟจาก /Game/...) */
+  function normalizeGauntletAssetUrlForPlay(u) {
+    if (typeof u !== 'string') return '';
+    const t = u.trim();
+    if (!t) return '';
+    if (/^https?:\/\//i.test(t)) return t;
+    const qIdx = t.indexOf('?');
+    const base = (qIdx >= 0 ? t.slice(0, qIdx) : t).trim();
+    const qs = qIdx >= 0 ? t.slice(qIdx) : '';
+    if (!base) return '';
+    if (base.startsWith('/')) return base + qs;
+    if (/^Game\//i.test(base)) return '/' + base.replace(/^\/+/, '') + qs;
+    return base + qs;
+  }
+
+  function ensureGauntletAssetImage(url) {
+    const u = normalizeGauntletAssetUrlForPlay(typeof url === 'string' ? url : '');
+    if (!u) return null;
+    let rec = gauntletAssetImageCache.get(u);
+    if (rec) return rec;
+    rec = { img: new Image(), ready: false };
+    if (/^https?:\/\//i.test(u)) {
+      try { rec.img.crossOrigin = 'anonymous'; } catch (e) { /* ignore */ }
+    }
+    rec.img.onload = function () { rec.ready = true; };
+    rec.img.onerror = function () { rec.ready = false; };
+    rec.img.src = u;
+    gauntletAssetImageCache.set(u, rec);
+    return rec;
+  }
+
+  function pickGauntletLaneImageRec(obsId) {
+    if (!gauntletLaneImageUrls.length) return null;
+    const n = gauntletLaneImageUrls.length;
+    const idx = Math.abs(Number(obsId) | 0) % n;
+    const u = gauntletLaneImageUrls[idx];
+    return u ? ensureGauntletAssetImage(u) : null;
+  }
+
+  function clampClientLaserColor(s, def) {
+    const t = String(s || '').trim().slice(0, 100);
+    if (!t || /[<>"'`]/.test(t)) return def;
+    return t;
+  }
+
+  let playQuizPhaseLocal = null;
+  let playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+  let playQuizText = '';
+  let playQuizPhaseEndsAt = 0;
+  let playQuizTimerInterval = null;
+  /** Preview-only: real question pool + phased timer (matches server quiz-settings / map quizQuestions). */
+  let previewQuizPool = [];
+  let previewQuizTiming = { readMs: 10000, answerMs: 5000, betweenMs: 3500 };
+  let previewQuizStep = 'read';
+  let previewQuizCurrent = null;
+  let playLiveQuizScores = {};
+  /** คะแนนต่อคำตอบที่ถูกเมื่อส่งป้ายที่ฮับ/โซนส่ง — quiz_carry เท่านั้น */
+  const QUIZ_CARRY_POINTS_PER_CORRECT = 10;
+  /** quiz_carry: หยิบตัวเลือกมาวางโซนกลาง — เล่นพร้อมกัน (ไม่สลับตา) */
+  let quizCarryPool = [];
+  let quizCarryCurrent = null;
+  /** editor embed + preview: นับ 3–2–1 ก่อนโชว์คำถามและให้เดิน/หยิบได้ */
+  let quizCarryEmbedPendingQuestion = null;
+  let quizCarryEmbedCountdownStartAt = 0;
+  let quizCarryEmbedCountdownEndAt = 0;
+  /** quiz_carry: epoch ให้หยิบตัวเลือกได้ · epoch ปิดรอบตอบ (ตั้งที่ Admin แท็บหยิบมาวาง) */
+  let quizCarryOptionRevealAt = 0;
+  let quizCarryAnswerCloseAt = 0;
+  let quizCarryCarryTimingMs = { carryReadMs: 3000, carryAnswerMs: 5000 };
+  /** พรีวิว (รวม editor embed): จำนวนข้อที่เล่นก่อนโอเวอร์เลย์จบ — 0 = ไม่จบอัตโนมัติ */
+  let quizCarrySessionLength = 0;
+  let quizCarryRoundsCompleted = 0;
+  let quizCarrySessionEnded = false;
+  /** หลัง timeup บนโต๊ะ (embed): รอ 5s แล้วโชว์ result-complete / result-gameover */
+  let quizCarryResultEndTimer = null;
+  /** หลังโชว์ result-end (embed preview): รอ 5s แล้วกลับ room-lobby — ใช้ร่วม quiz_carry + crown */
+  let embedPreviewLobbyReturnTimer = null;
+  /** embed พรีวิว: รอ Ready / START ของโฮสต์ก่อนนับ 3–2–1 */
+  let quizCarryPregameActive = false;
+  let playHostId = null;
+  /** ซิงก์จากเซิร์ฟเวอร์: socketId → กด Ready แล้ว */
+  let quizCarryLobbyReadyMap = {};
+  /** จาก /api/quiz-settings carryMapPanelTheme — ใช้กับ #quiz-map-question-panel เฉพาะ quiz_carry */
+  let quizCarryMapPanelTheme = null;
+  /** จาก /api/quiz-settings carryEmbedCountdownTheme — สี/ขนาด overlay นับ 3-2-1 (embed) */
+  let quizCarryEmbedCountdownTheme = null;
+  /** จาก /api/quiz-settings carryChoicePlaqueThemes — ป้าย canvas ต่อช่องตัวเลือก 0..15 (null = ใช้ค่าเริ่มต้นทุกช่อง) */
+  let quizCarryChoicePlaqueThemes = null;
+  /** จาก carryChoicePlaqueMapScale — ขยายป้ายบนแมป + ฟอนต์ (0.85–2.5) */
+  let quizCarryPlaqueMapScale = 1.25;
+  const quizCarryChoiceImageCache = new Map();
+  /** สแนปจาก join-space (Node) — ใช้เมื่อ fetch HTTP quiz-settings ไม่ได้หรือไม่มีธีม */
+  let quizCarryJoinSettingsSnap = null;
+
+  /** quiz_carry — โซนตัวเลือกบนแมป / ธีมป้ายต่อช่องสูงสุด 16 */
+  const QUIZ_CARRY_MAX_OPTION_SLOTS = 16;
+
+  /** jump_survive — กล้องตามตัวในกรอบ + แพลตฟอร์มเลื่อนขึ้น (scroll) ไม่ลากทั้งฉาก */
+  let jumpSurviveCamCenterX = 0;
+  let jumpSurviveCamCenterY = 0;
+  let jumpSurviveEliminated = false;
+  /** จับเวลาโหมดกระโดดให้รอด (วินาทีบน HUD) */
+  let jumpSurviveSessionStartMs = 0;
+  let jumpSurvivePlatformScrollPx = 0;
+  let jumpSurviveVy = 0;
+  let jumpSurviveLastTickMs = 0;
+  let jumpSurviveJumpQueued = false;
+  let jumpSurviveOnGround = false;
+  let jumpSurviveLastEmitT = 0;
+  /** mnptfts2: howto → countdown → live → ended (คะแนน 100 ผู้รอดสุดท้าย) */
+  let jumpSurviveMissionPhase = null;
+  let jumpSurviveGameEnded = false;
+  let jumperMissionCountdownTimer = null;
+
+  /** space_shooter — ยิงหิน (จุดเกิดจากกริด P1–P6) */
+  let spaceShooterBullets = [];
+  let spaceShooterAsteroids = [];
+  let spaceShooterPopups = [];
+  let spaceShooterLastTickMs = 0;
+  let spaceShooterSpawnAccMs = 0;
+  let spaceShooterFireCd = 0;
+  let spaceShooterSessionStartMs = 0;
+  let spaceShooterLastMoveEmit = 0;
+  let spaceShooterGameEnded = false;
+
+  /** balloon_boss — ลูกโป้งยิงบอส (Mega Virus) */
+  let balloonBossPendingShots = [];
+  let balloonBossPlayerBullets = [];
+  let balloonBossBossBullets = [];
+  let balloonBossSessionStartMs = 0;
+  let balloonBossLastTickMs = 0;
+  let balloonBossLastMoveEmit = 0;
+  let balloonBossPlayerFireCd = 0;
+  let balloonBossGameEnded = false;
+  let balloonBossHitFx = [];
+  let balloonBossBossFireAcc = 0;
+  /** quiz_battle — โดม MCQ กด E (ข้อจาก battleQuizMcq) */
+  let quizBattleMcqPool = [];
+  let quizBattleAnsweredComps = new Set();
+  let quizBattleModalCompId = null;
+  const SPACE_SHOOTER_SHIP_COLORS = ['#50fa7b', '#ff79c6', '#ff5555', '#f1fa8c', '#bd93f9', '#8be9fd'];
+
+  document.getElementById('room-id').textContent = spaceId;
+
+  function hidePlayQuizHud() {
+    const sb = document.getElementById('play-quiz-scoreboard');
+    if (sb) sb.classList.add('is-hidden');
+    const fb = document.getElementById('play-quiz-feedback');
+    if (fb) { fb.classList.add('is-hidden'); fb.textContent = ''; }
+  }
+
+  function renderPlayQuizScoreboard(scores) {
+    const wrap = document.getElementById('play-quiz-scoreboard');
+    const ul = document.getElementById('play-quiz-scoreboard-list');
+    if (!wrap || !ul || !mapData || (!isQuiz() && !isQuizCarry() && !isQuizBattle())) return;
+    if (!scores || typeof scores !== 'object') return;
+    wrap.classList.remove('is-hidden');
+    ul.textContent = '';
+    const merged = { ...scores };
+    others.forEach((_, id) => { if (merged[id] == null) merged[id] = 0; });
+    if (myId != null && merged[myId] == null) merged[myId] = 0;
+    const rows = [];
+    if (myId != null) {
+      rows.push({ id: myId, nick: me.nickname || 'คุณ', sc: merged[myId] != null ? merged[myId] : 0 });
+    }
+    others.forEach((o, id) => {
+      rows.push({ id, nick: (o && o.nickname) ? String(o.nickname) : id, sc: merged[id] != null ? merged[id] : 0 });
+    });
+    rows.sort((a, b) => b.sc - a.sc || a.nick.localeCompare(b.nick, 'th'));
+    rows.forEach((row) => {
+      const li = document.createElement('li');
+      if (row.id === myId) li.className = 'play-quiz-scoreboard-me';
+      const spN = document.createElement('span');
+      spN.className = 'play-quiz-scoreboard-name';
+      spN.textContent = row.nick;
+      const spV = document.createElement('span');
+      spV.className = 'play-quiz-scoreboard-val';
+      spV.textContent = String(row.sc);
+      li.appendChild(spN);
+      li.appendChild(spV);
+      ul.appendChild(li);
+    });
+    if (isQuizCarry() && useCyberPlayHud()) {
+      wrap.classList.add('is-hidden');
+    }
+  }
+
+  function initPlayLiveQuizScoresZeros() {
+    if ((!isQuiz() && !isQuizCarry() && !isQuizBattle()) || myId == null) return;
+    playLiveQuizScores = {};
+    playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  function showPlayQuizFeedback(r) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el || !r || !r.results || myId == null) return;
+    let mine = null;
+    let botRight = 0, botWrong = 0;
+    for (let i = 0; i < r.results.length; i++) {
+      const row = r.results[i];
+      if (row.id === myId) mine = row;
+      else if (isPreviewBotId(row.id)) {
+        if (row.right) botRight++;
+        else botWrong++;
+      }
+    }
+    if (!mine) return;
+    el.classList.remove('is-hidden');
+    const botExtra = previewFillBots && (botRight + botWrong > 0)
+      ? ' · บอท ถูก ' + botRight + ' / ผิด ' + botWrong + ' (Bots: ' + botRight + ' right / ' + botWrong + ' wrong)'
+      : '';
+    if (mine.right) {
+      el.className = 'play-quiz-feedback play-quiz-feedback-ok';
+      el.textContent = 'คุณตอบถูก · คะแนนรวม ' + (typeof mine.score === 'number' ? mine.score : 0) + ' แต้ม' + botExtra;
+    } else {
+      el.className = 'play-quiz-feedback play-quiz-feedback-bad';
+      el.textContent = (mine.choice == null
+        ? 'คุณไม่ได้ยืนในโซนตอบ — นับเป็นผิด'
+        : 'คุณตอบผิด — กลับจุดเกิด และเข้าโซนตอบไม่ได้อีก') + botExtra;
+    }
+    if (typeof window.__playQuizFeedbackT === 'number') clearTimeout(window.__playQuizFeedbackT);
+    window.__playQuizFeedbackT = setTimeout(() => { el.classList.add('is-hidden'); }, 4200);
+  }
+
+  function getTileBoundsForOnesGrid(grid) {
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  function getQuizQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  /** quiz_carry: โซนทองพิเศษสำหรับข้อความคำถาม (ถ้าไม่วาด ใช้โซนกลางม่วงแทนใน syncPlayQuizMapPanel) */
+  function getQuizCarryQuestionAreaTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    return getTileBoundsForOnesGrid(md.quizQuestionArea);
+  }
+
+  function clearQuizMapPanelThemeInline(panel, textEl) {
+    if (!panel || !textEl) return;
+    panel.style.removeProperty('--qmap-bg');
+    panel.style.removeProperty('--qmap-border');
+    panel.style.removeProperty('--qmap-border-w');
+    panel.style.removeProperty('--qmap-shadow');
+    panel.style.removeProperty('background');
+    panel.style.removeProperty('border');
+    panel.style.removeProperty('border-color');
+    panel.style.removeProperty('border-width');
+    panel.style.removeProperty('border-style');
+    panel.style.removeProperty('box-shadow');
+    textEl.style.removeProperty('--qmap-text');
+    textEl.style.removeProperty('--qmap-text-shadow');
+    textEl.style.removeProperty('color');
+    textEl.style.removeProperty('text-shadow');
+    textEl.style.removeProperty('font-size');
+    textEl.style.removeProperty('line-height');
+    textEl.style.removeProperty('width');
+    textEl.style.removeProperty('box-sizing');
+    textEl.style.removeProperty('max-height');
+    textEl.style.removeProperty('overflow');
+  }
+
+  function clearQuizMapQuestionCarryFeedback() {
+    if (typeof window.__quizMapCarryFeedbackT === 'number') {
+      clearTimeout(window.__quizMapCarryFeedbackT);
+      window.__quizMapCarryFeedbackT = null;
+    }
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (icon) {
+      icon.classList.add('is-hidden');
+      icon.removeAttribute('src');
+    }
+    if (scoreEl) scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+    if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  /** ไอคอนถูก/ผิดที่ขอบบนแผง + score+10 ตรงกลางใต้ข้อความ (เฉพาะถูก) — ตาม mock quiz_carry */
+  function showQuizMapQuestionCarryFeedback(isCorrect) {
+    if (!isQuizCarry()) return;
+    const panel = document.getElementById('quiz-map-question-panel');
+    const icon = document.getElementById('quiz-map-q-feedback-icon');
+    const scoreWrap = document.getElementById('quiz-map-q-feedback-score-wrap');
+    const scoreEl = document.getElementById('quiz-map-q-feedback-score');
+    if (!panel || !icon || panel.classList.contains('is-hidden')) return;
+    clearQuizMapQuestionCarryFeedback();
+    icon.src = isCorrect ? QUIZ_CARRY_MAP_FEEDBACK_IMG.correct : QUIZ_CARRY_MAP_FEEDBACK_IMG.incorrect;
+    icon.classList.remove('is-hidden');
+    if (isCorrect && scoreWrap && scoreEl) {
+      scoreEl.src = QUIZ_CARRY_MAP_FEEDBACK_IMG.scorePlus;
+      scoreWrap.classList.remove('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'false');
+      scoreEl.classList.remove('quiz-map-q-feedback-score--pop');
+      void scoreEl.offsetWidth;
+      scoreEl.classList.add('quiz-map-q-feedback-score--pop');
+    } else if (scoreWrap) {
+      scoreWrap.classList.add('is-hidden');
+      scoreWrap.setAttribute('aria-hidden', 'true');
+    }
+    window.__quizMapCarryFeedbackT = setTimeout(() => {
+      window.__quizMapCarryFeedbackT = null;
+      clearQuizMapQuestionCarryFeedback();
+    }, QUIZ_MAP_CARRY_FEEDBACK_MS);
+  }
+
+  /** ค่าเริ่มต้นแผงคำถามบนแผนที่ (ตรงกับ server defaultCarryMapPanelTheme) — ใช้เมื่อยังไม่โหลดจาก API */
+  function defaultCarryMapPanelThemePlay() {
+    return {
+      panelBg: 'rgba(12, 14, 28, 0.88)',
+      panelBorder: 'rgba(255, 214, 102, 0.7)',
+      borderWidthPx: 2,
+      textColor: '#f1f5f9',
+      questionFontMinPx: 10,
+      questionFontMaxPx: 24,
+    };
+  }
+
+  /** ตรงกับ drawQuizCarryChoiceLabels — carryChoicePlaqueMapScale */
+  function quizCarryPlaqueMapScaleClampedPlay() {
+    const sc = Number(quizCarryPlaqueMapScale);
+    if (!Number.isFinite(sc)) return 1.25;
+    return Math.max(0.85, Math.min(2.5, sc));
+  }
+
+  /**
+   * ขนาดตัวอักษรแผงคำถาม DOM ให้เท่าป้ายคำตอบบนพื้น: Math.max(10, Math.min(24, tileSize*zoom*0.24*ps))
+   * แล้ว clamp ด้วย questionFontMinPx / questionFontMaxPx จากธีม (ถ้าต้องการใหญ่กว่าป้ายได้โดยยกเพดาน max)
+   */
+  function quizMapQuestionFontPxLikeCarryPlaques(th, zoomVal) {
+    const ts = tileSize * zoomVal;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const base = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    const fb = defaultCarryMapPanelThemePlay();
+    let mn = Number(th && th.questionFontMinPx);
+    let mx = Number(th && th.questionFontMaxPx);
+    if (!Number.isFinite(mn)) mn = fb.questionFontMinPx;
+    if (!Number.isFinite(mx)) mx = fb.questionFontMaxPx;
+    mn = Math.round(Math.max(8, Math.min(40, mn)));
+    mx = Math.round(Math.max(10, Math.min(72, mx)));
+    if (mx < mn) {
+      const s = mn;
+      mn = mx;
+      mx = s;
+    }
+    return Math.max(mn, Math.min(mx, base));
+  }
+
+  /**
+   * ลด px ทีละ 1 จนเนื้อหาไม่ล้นกล่อง (ไม่ใช้ scrollbar)
+   * zoom out กล่องเตี้ยมาก: อนุญาตต่ำกว่า questionFontMinPx ของธีมได้ถึง hardMin (≥6) ไม่ให้บรรทัดถูกตัด
+   * แผงใช้ justify-content:flex-start ใน CSS — ไม่จัดกึ่งกลางแนวตั้งแล้วโดน overflow ตัดบน-ล่าง
+   */
+  function fitQuizMapQuestionFontToPanel(panel, textEl, startPx, minPx) {
+    const cs = window.getComputedStyle(panel);
+    const padT = parseFloat(cs.paddingTop) || 0;
+    const padB = parseFloat(cs.paddingBottom) || 0;
+    const padL = parseFloat(cs.paddingLeft) || 0;
+    const padR = parseFloat(cs.paddingRight) || 0;
+    const availH = Math.max(12, panel.clientHeight - padT - padB);
+    const availW = Math.max(24, panel.clientWidth - padL - padR);
+    const themeMin = Math.max(8, Math.floor(Number(minPx) || 8));
+    const hardMin = Math.min(themeMin, Math.max(6, Math.floor(availH / 7)));
+    let px = Math.round(Math.min(80, Math.max(hardMin, Number(startPx) || hardMin)));
+    textEl.style.setProperty('line-height', '1.28', 'important');
+    textEl.style.setProperty('width', '100%', 'important');
+    textEl.style.setProperty('box-sizing', 'border-box', 'important');
+    textEl.style.removeProperty('max-height');
+    textEl.style.setProperty('overflow', 'hidden', 'important');
+    for (let i = 0; i < 96 && px > hardMin; i++) {
+      textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+      const sh = textEl.scrollHeight;
+      const sw = textEl.scrollWidth;
+      if (sh <= availH + 2 && sw <= availW + 2) break;
+      px -= 1;
+    }
+    textEl.style.setProperty('font-size', String(px) + 'px', 'important');
+    textEl.style.setProperty('max-height', availH + 'px', 'important');
+  }
+
+  /** ธีมจาก quiz-settings / join API — ถ้า JSON ไม่มีฟอนต์ให้ใช้ค่าเริ่มต้น */
+  function parseCarryMapPanelThemeObject(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const fb = defaultCarryMapPanelThemePlay();
+    let qMin = Number(t.questionFontMinPx);
+    let qMax = Number(t.questionFontMaxPx);
+    if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+    if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+    qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+    qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+    if (qMax < qMin) {
+      const s = qMin;
+      qMin = qMax;
+      qMax = s;
+    }
+    return {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+      questionFontMinPx: qMin,
+      questionFontMaxPx: qMax,
+    };
+  }
+
+  /**
+   * ชั้นทับจาก carryMapPanelTheme ในไฟล์แมป — ฟอนต์ใส่เฉพาะเมื่อ JSON มี key จริง
+   * (กันธีมแมปมีแค่สีแล้วไปทับขนาดฟอนต์จาก Admin เป็นค่าเริ่ม 16/24)
+   */
+  function parseCarryMapPanelThemeMapOverlay(raw) {
+    let t = raw;
+    if (typeof t === 'string') {
+      try {
+        t = JSON.parse(t);
+      } catch (e) {
+        t = null;
+      }
+    }
+    if (!t || typeof t !== 'object') return null;
+    const bw = Number(t.borderWidthPx);
+    const borderWidthPx = Number.isFinite(bw) ? Math.max(0, Math.min(12, Math.round(bw))) : 2;
+    const out = {
+      panelBg: String(t.panelBg || '').trim().slice(0, 120),
+      panelBorder: String(t.panelBorder || '').trim().slice(0, 120),
+      borderWidthPx,
+      textColor: String(t.textColor || '').trim().slice(0, 120),
+    };
+    const hasMin = Object.prototype.hasOwnProperty.call(t, 'questionFontMinPx');
+    const hasMax = Object.prototype.hasOwnProperty.call(t, 'questionFontMaxPx');
+    if (hasMin || hasMax) {
+      const fb = defaultCarryMapPanelThemePlay();
+      let qMin = hasMin ? Number(t.questionFontMinPx) : fb.questionFontMinPx;
+      let qMax = hasMax ? Number(t.questionFontMaxPx) : fb.questionFontMaxPx;
+      if (!Number.isFinite(qMin)) qMin = fb.questionFontMinPx;
+      if (!Number.isFinite(qMax)) qMax = fb.questionFontMaxPx;
+      qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+      qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+      if (qMax < qMin) {
+        const s = qMin;
+        qMin = qMax;
+        qMax = s;
+      }
+      out.questionFontMinPx = qMin;
+      out.questionFontMaxPx = qMax;
+    }
+    return out;
+  }
+
+  function setQuizCarryMapPanelThemeFromApi(s) {
+    quizCarryMapPanelTheme = null;
+    if (!s || typeof s !== 'object') return;
+    const parsed = parseCarryMapPanelThemeObject(s.carryMapPanelTheme);
+    if (!parsed) return;
+    quizCarryMapPanelTheme = parsed;
+  }
+
+  function defaultCarryChoicePlaqueThemePlay() {
+    return {
+      borderMode: 'neon',
+      fixedBorder: 'rgba(122, 200, 255, 0.9)',
+      fillBg: 'rgba(12, 10, 20, 0.88)',
+      textColor: 'rgba(248, 249, 255, 1)',
+      borderWidthPx: 2.5,
+      plaqueImageUrl: '',
+    };
+  }
+
+  function parseCarryChoicePlaqueThemeObject(raw) {
+    const d = defaultCarryChoicePlaqueThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const safeColor = (x, fb) => {
+      const t = String(x == null ? '' : x).trim().slice(0, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    const mode = String(raw.borderMode || '').toLowerCase() === 'fixed' ? 'fixed' : 'neon';
+    let bw = Number(raw.borderWidthPx);
+    if (!Number.isFinite(bw)) bw = d.borderWidthPx;
+    bw = Math.round(Math.max(0, Math.min(8, bw)) * 10) / 10;
+    return {
+      borderMode: mode,
+      fixedBorder: safeColor(raw.fixedBorder, d.fixedBorder),
+      fillBg: safeColor(raw.fillBg, d.fillBg),
+      textColor: safeColor(raw.textColor, d.textColor),
+      borderWidthPx: bw,
+      plaqueImageUrl: sanitizeQuizCarryImageUrlClient(raw.plaqueImageUrl),
+    };
+  }
+
+  function buildCarryChoicePlaqueThemesArrayFromApi(s) {
+    if (!s || typeof s !== 'object') return null;
+    if (Array.isArray(s.carryChoicePlaqueThemes) && s.carryChoicePlaqueThemes.length) {
+      const out = [];
+      for (let i = 0; i < QUIZ_CARRY_MAX_OPTION_SLOTS; i++) {
+        out.push(parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueThemes[i]));
+      }
+      return out;
+    }
+    if (s.carryChoicePlaqueTheme && typeof s.carryChoicePlaqueTheme === 'object') {
+      const one = parseCarryChoicePlaqueThemeObject(s.carryChoicePlaqueTheme);
+      return Array.from({ length: QUIZ_CARRY_MAX_OPTION_SLOTS }, () => ({ ...one }));
+    }
+    return null;
+  }
+
+  function getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex) {
+    const i = Math.max(0, Math.min(QUIZ_CARRY_MAX_OPTION_SLOTS - 1, choiceIndex | 0));
+    if (quizCarryChoicePlaqueThemes && quizCarryChoicePlaqueThemes[i]) {
+      return quizCarryChoicePlaqueThemes[i];
+    }
+    return defaultCarryChoicePlaqueThemePlay();
+  }
+
+  function setQuizCarryChoicePlaqueThemeFromApi(s) {
+    quizCarryChoicePlaqueThemes = buildCarryChoicePlaqueThemesArrayFromApi(s);
+  }
+
+  function sanitizeQuizCarryImageUrlClient(u) {
+    const s = String(u == null ? '' : u).trim().slice(0, 512);
+    if (!s || /[\s<>'"`]/.test(s)) return '';
+    if (s.startsWith('/')) {
+      if (!/^\/[\w\-./?#=&%+]+$/i.test(s)) return '';
+      return s;
+    }
+    const low = s.toLowerCase();
+    if (!low.startsWith('https://') && !low.startsWith('http://')) return '';
+    try {
+      const parsed = new URL(s);
+      if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') return '';
+      return s;
+    } catch (e) {
+      return '';
+    }
+  }
+
+  /** crossOrigin=anonymous กับ same-origin บางเซิร์ฟ/nginx ทำให้โหลดรูปล้ม — ใช้เฉพาะข้ามโดเมน */
+  function quizCarryApplyImageCrossOrigin(img, rawUrl) {
+    if (!img) return;
+    try {
+      img.removeAttribute('crossorigin');
+      const u = sanitizeQuizCarryImageUrlClient(rawUrl);
+      if (!u || u.startsWith('data:')) return;
+      let imgOrigin = '';
+      if (u.startsWith('http://') || u.startsWith('https://')) {
+        imgOrigin = new URL(u).origin;
+      } else if (u.startsWith('/')) {
+        imgOrigin = window.location.origin;
+      }
+      if (imgOrigin && imgOrigin !== window.location.origin) {
+        img.crossOrigin = 'anonymous';
+      }
+    } catch (e) { /* ignore */ }
+  }
+
+  function preloadQuizCarryChoiceImages(q) {
+    if (!q) return;
+    if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+      for (let i = 0; i < q.choiceImageUrls.length; i++) {
+        const raw = sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[i]);
+        if (!raw) continue;
+        if (quizCarryChoiceImageCache.has(raw)) continue;
+        const im = new Image();
+        quizCarryApplyImageCrossOrigin(im, raw);
+        im.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw, im);
+        try {
+          im.src = raw;
+        } catch (e) { /* ignore */ }
+      }
+    }
+    if (Array.isArray(q.choices)) {
+      for (let j = 0; j < q.choices.length; j++) {
+        const raw2 = getQuizCarryPlaqueImageUrlForIndex(q, j);
+        if (!raw2 || quizCarryChoiceImageCache.has(raw2)) continue;
+        const im2 = new Image();
+        quizCarryApplyImageCrossOrigin(im2, raw2);
+        im2.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(raw2, im2);
+        try {
+          im2.src = raw2;
+        } catch (e) { /* ignore */ }
+      }
+    }
+  }
+
+  function getQuizCarryChoiceImageCached(url) {
+    const u = sanitizeQuizCarryImageUrlClient(url);
+    if (!u) return null;
+    const im = quizCarryChoiceImageCache.get(u);
+    if (im && im.complete && im.naturalWidth > 0) return im;
+    return null;
+  }
+
+  function getQuizCarryChoiceImageUrlForIndex(q, idx) {
+    if (!q || !Array.isArray(q.choiceImageUrls)) return '';
+    const u = q.choiceImageUrls[idx];
+    return sanitizeQuizCarryImageUrlClient(u);
+  }
+
+  /** รูปป้าย: คำถามต่อช่องก่อน แล้วค่อยรูปจากธีมช่อง (carryChoicePlaqueThemes) */
+  function getQuizCarryPlaqueImageUrlForIndex(q, idx) {
+    const perQ = getQuizCarryChoiceImageUrlForIndex(q, idx);
+    if (perQ) return perQ;
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(idx);
+    const u = th && th.plaqueImageUrl ? sanitizeQuizCarryImageUrlClient(th.plaqueImageUrl) : '';
+    return u || '';
+  }
+
+  function defaultCarryEmbedCountdownThemePlay() {
+    return {
+      overlayBackdrop: 'rgba(8, 10, 20, 0.42)',
+      innerBg: 'rgba(12, 14, 28, 0.82)',
+      innerBorder: 'rgba(122, 162, 247, 0.45)',
+      innerBorderWpx: 1,
+      innerRadiusPx: 12,
+      digitColor: '#ffe066',
+      mapDigitCqmin: 78,
+      mapDigitCqh: 82,
+      mapDigitMaxPx: 200,
+      screenDigitVw: 28,
+      screenDigitMaxPx: 132,
+    };
+  }
+
+  function parseCarryEmbedCountdownThemeObject(raw) {
+    const d = defaultCarryEmbedCountdownThemePlay();
+    if (!raw || typeof raw !== 'object') return d;
+    const clampN = (v, lo, hi, def) => {
+      const n = Number(v);
+      if (!Number.isFinite(n)) return def;
+      return Math.max(lo, Math.min(hi, Math.round(n)));
+    };
+    const clipStr = (x, maxLen) => {
+      const t = String(x == null ? '' : x).trim().slice(0, maxLen);
+      return t || null;
+    };
+    const safeColor = (x, fb) => {
+      const t = clipStr(x, 120);
+      if (!t || /url\s*\(|expression|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fb;
+      if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+      if (/^rgba?\(\s*[^)]+\)$/i.test(t)) return t.replace(/\s+/g, ' ').trim();
+      return fb;
+    };
+    return {
+      overlayBackdrop: safeColor(raw.overlayBackdrop, d.overlayBackdrop),
+      innerBg: safeColor(raw.innerBg, d.innerBg),
+      innerBorder: safeColor(raw.innerBorder, d.innerBorder),
+      innerBorderWpx: clampN(raw.innerBorderWpx, 0, 12, d.innerBorderWpx),
+      innerRadiusPx: clampN(raw.innerRadiusPx, 0, 32, d.innerRadiusPx),
+      digitColor: safeColor(raw.digitColor, d.digitColor),
+      mapDigitCqmin: clampN(raw.mapDigitCqmin, 35, 100, d.mapDigitCqmin),
+      mapDigitCqh: clampN(raw.mapDigitCqh, 35, 100, d.mapDigitCqh),
+      mapDigitMaxPx: clampN(raw.mapDigitMaxPx, 48, 400, d.mapDigitMaxPx),
+      screenDigitVw: clampN(raw.screenDigitVw, 6, 44, d.screenDigitVw),
+      screenDigitMaxPx: clampN(raw.screenDigitMaxPx, 48, 220, d.screenDigitMaxPx),
+    };
+  }
+
+  function setQuizCarryEmbedCountdownThemeFromApi(s) {
+    quizCarryEmbedCountdownTheme = parseCarryEmbedCountdownThemeObject(s && s.carryEmbedCountdownTheme);
+    applyQuizCarryEmbedCountdownThemeToDom();
+  }
+
+  const CARRY_ECD_VAR_KEYS = [
+    '--carry-ecd-overlay',
+    '--carry-ecd-inner-bg',
+    '--carry-ecd-inner-border',
+    '--carry-ecd-inner-border-w',
+    '--carry-ecd-inner-radius',
+    '--carry-ecd-digit-color',
+    '--carry-ecd-map-digit-fs',
+    '--carry-ecd-screen-vw',
+    '--carry-ecd-screen-max',
+  ];
+
+  function clearQuizCarryEmbedCountdownThemeDomVars() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    if (!root) return;
+    CARRY_ECD_VAR_KEYS.forEach((k) => { try { root.style.removeProperty(k); } catch (e) { /* ignore */ } });
+  }
+
+  /** ใส่ CSS variables บน #quiz-carry-embed-countdown — อ่านจาก quizCarryEmbedCountdownTheme */
+  function applyQuizCarryEmbedCountdownThemeToDom() {
+    const root = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (!root) return;
+    clearQuizCarryEmbedCountdownThemeDomVars();
+    const th = quizCarryEmbedCountdownTheme || defaultCarryEmbedCountdownThemePlay();
+    root.style.setProperty('--carry-ecd-overlay', th.overlayBackdrop);
+    root.style.setProperty('--carry-ecd-inner-bg', th.innerBg);
+    root.style.setProperty('--carry-ecd-inner-border', th.innerBorder);
+    root.style.setProperty('--carry-ecd-inner-border-w', `${Math.max(0, Math.min(12, Math.round(Number(th.innerBorderWpx) || 1)))}px`);
+    root.style.setProperty('--carry-ecd-inner-radius', `${Math.max(0, Math.min(32, Math.round(Number(th.innerRadiusPx) || 12)))}px`);
+    root.style.setProperty('--carry-ecd-digit-color', th.digitColor);
+    const cqmin = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqmin) || 78)));
+    const cqh = Math.max(35, Math.min(100, Math.round(Number(th.mapDigitCqh) || 82)));
+    const mpx = Math.max(48, Math.min(400, Math.round(Number(th.mapDigitMaxPx) || 200)));
+    root.style.setProperty('--carry-ecd-map-digit-fs', `clamp(14px, min(${cqmin}cqmin, ${cqh}cqh), ${mpx}px)`);
+    const vw = Math.max(6, Math.min(44, Math.round(Number(th.screenDigitVw) || 28)));
+    const smx = Math.max(48, Math.min(220, Math.round(Number(th.screenDigitMaxPx) || 132)));
+    root.style.setProperty('--carry-ecd-screen-vw', `${vw}vw`);
+    root.style.setProperty('--carry-ecd-screen-max', `${smx}px`);
+    if (numEl) {
+      numEl.style.textShadow = '0 0 0.45em currentColor, 0 4px 14px rgba(0,0,0,0.55)';
+    }
+  }
+
+  /** default ← quiz-settings/API ← แมป (สีจากแมปทับได้; ฟอนต์จากแมปเฉพาะเมื่อแมประบุ key) */
+  function getEffectiveCarryMapPanelThemeForApply() {
+    const d = defaultCarryMapPanelThemePlay();
+    const api = quizCarryMapPanelTheme != null && typeof quizCarryMapPanelTheme === 'object' ? quizCarryMapPanelTheme : null;
+    let merged = api ? { ...d, ...api } : { ...d };
+    if (mapData && mapData.carryMapPanelTheme != null) {
+      const mp = parseCarryMapPanelThemeMapOverlay(mapData.carryMapPanelTheme);
+      if (mp) merged = { ...merged, ...mp };
+    }
+    return merged;
+  }
+
+  function applyQuizCarryMapPanelThemeIfNeeded(panel, textEl) {
+    if (!panel || !textEl) return;
+    if (!isQuizCarry()) {
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const th = getEffectiveCarryMapPanelThemeForApply();
+    clearQuizMapPanelThemeInline(panel, textEl);
+    const bgStr = th.panelBg != null ? String(th.panelBg).trim() : '';
+    const brStr = th.panelBorder != null ? String(th.panelBorder).trim() : '';
+    const txStr = th.textColor != null ? String(th.textColor).trim() : '';
+    const wRaw = Number(th.borderWidthPx);
+    const w = Number.isFinite(wRaw) ? Math.max(0, Math.min(12, Math.round(wRaw))) : 0;
+    const bgUse = bgStr || 'transparent';
+    const brUse = brStr || 'transparent';
+    const txUse = txStr || '#f1f5f9';
+    panel.style.setProperty('--qmap-bg', bgUse);
+    panel.style.setProperty('--qmap-border', brUse);
+    panel.style.setProperty('--qmap-border-w', String(w) + 'px');
+    panel.style.setProperty('--qmap-shadow', 'none');
+    textEl.style.setProperty('--qmap-text', txUse);
+    textEl.style.setProperty('--qmap-text-shadow', 'none');
+    /* โหลด play.html แบบแคชเก่า (ไม่มี var) ยังต้องทับได้ — ใช้ !important คู่กับตัวแปร */
+    panel.style.setProperty('background', bgUse, 'important');
+    panel.style.setProperty('border', String(w) + 'px solid ' + brUse, 'important');
+    panel.style.setProperty('box-shadow', 'none', 'important');
+    textEl.style.setProperty('color', txUse, 'important');
+    textEl.style.setProperty('text-shadow', 'none', 'important');
+  }
+
+  function syncPlayQuizMapPanel() {
+    const panel = document.getElementById('quiz-map-question-panel');
+    const textEl = document.getElementById('quiz-map-question-text');
+    if (!panel || !textEl || !mapData) return;
+    /* เอดิเตอร์ embed: ซ่อนแผงทองเฉพาะโหมด quiz (ทับกลาง) — quiz_carry ต้องโชว์ตามโซนที่วาดบนแผนที่ */
+    if (previewMode && editorEmbedReturn && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (isQuizBattle()) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    if (!isQuiz() && !isQuizCarry()) {
+      clearQuizMapQuestionCarryFeedback();
+      return;
+    }
+    const bounds = isQuiz()
+      ? getQuizQuestionAreaTileBounds(mapData)
+      : (getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData));
+    const text = (playQuizText || '').trim();
+    if (!bounds || !text) {
+      clearQuizMapQuestionCarryFeedback();
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, textEl);
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    textEl.textContent = text;
+    panel.style.left = Math.round(left) + 'px';
+    panel.style.top = Math.round(top) + 'px';
+    panel.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    panel.style.height = Math.round(Math.max(40, hPx)) + 'px';
+    panel.classList.remove('is-hidden');
+    panel.setAttribute('aria-hidden', 'false');
+    applyQuizCarryMapPanelThemeIfNeeded(panel, textEl);
+    const thFont = getEffectiveCarryMapPanelThemeForApply();
+    const startFontPx = quizMapQuestionFontPxLikeCarryPlaques(thFont, zoom);
+    const mnFont = Math.max(8, Math.round(Number(thFont.questionFontMinPx) || 10));
+    fitQuizMapQuestionFontToPanel(panel, textEl, startFontPx, mnFont);
+  }
+
+  /** โซนเดียวกับแผงคำถามบนแผนที่ — ยึด timeup ให้ตรงกล่อง #quiz-map-question-panel (ห้ามคำนวณซ้ำแล้วคลาด) */
+  function syncQuizCarryTimeupDeskLayerPosition() {
+    const layer = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!layer || layer.classList.contains('is-hidden')) return;
+    const anchor = layer.querySelector('.qc-timeup-desk-anchor')
+      || layer.querySelector('.qc-timeup-desk-inner')
+      || (() => {
+        const img = document.getElementById('quiz-carry-timeup-txt-img');
+        return img && img.parentElement && img.parentElement !== layer ? img.parentElement : null;
+      })();
+    if (!anchor || !canvas) return;
+    const clearToFullStack = () => {
+      anchor.style.left = '0';
+      anchor.style.top = '0';
+      anchor.style.width = '100%';
+      anchor.style.height = '100%';
+    };
+    const stack = document.getElementById('play-canvas-stack');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (stack && panel && !panel.classList.contains('is-hidden')) {
+      try {
+        const sr = stack.getBoundingClientRect();
+        const pr = panel.getBoundingClientRect();
+        const rw = pr.width;
+        const rh = pr.height;
+        if (rw >= 8 && rh >= 8 && sr.width > 0 && sr.height > 0) {
+          anchor.style.left = Math.round(pr.left - sr.left) + 'px';
+          anchor.style.top = Math.round(pr.top - sr.top) + 'px';
+          anchor.style.width = Math.round(rw) + 'px';
+          anchor.style.height = Math.round(rh) + 'px';
+          return;
+        }
+      } catch (e) { /* fallback ด้านล่าง */ }
+    }
+    const pl = panel && panel.style && String(panel.style.left || '').trim();
+    const pt = panel && panel.style && String(panel.style.top || '').trim();
+    const pw = panel && panel.style && String(panel.style.width || '').trim();
+    const ph = panel && panel.style && String(panel.style.height || '').trim();
+    if (pl && pt && pw && ph) {
+      anchor.style.left = pl;
+      anchor.style.top = pt;
+      anchor.style.width = pw;
+      anchor.style.height = ph;
+      return;
+    }
+    if (!mapData || mapData.gameType !== 'quiz_carry') {
+      clearToFullStack();
+      return;
+    }
+    const bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+    if (!bounds) {
+      clearToFullStack();
+      return;
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const left = (bounds.minX * tileSize - camX) * zoom + canvas.width / 2;
+    const top = (bounds.minY * tileSize - camY) * zoom + canvas.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    anchor.style.left = Math.round(left) + 'px';
+    anchor.style.top = Math.round(top) + 'px';
+    anchor.style.width = Math.round(Math.max(48, wPx)) + 'px';
+    anchor.style.height = Math.round(Math.max(40, hPx)) + 'px';
+  }
+
+  function carryEmbedCountdownAnchorResolved() {
+    if (!mapData || !isQuizCarry()) return 'screen';
+    const v = mapData.carryEmbedCountdownAnchor;
+    if (v === 'grid' || v === 'map') return v;
+    return 'screen';
+  }
+
+  function resetQuizCarryEmbedCountdownLayoutDom() {
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    if (ov) ov.classList.remove('quiz-carry-embed-countdown--map-anchor');
+    if (inner) {
+      inner.classList.remove('quiz-carry-embed-countdown-inner--map-rect');
+      inner.style.position = '';
+      inner.style.left = '';
+      inner.style.top = '';
+      inner.style.width = '';
+      inner.style.height = '';
+      inner.style.transform = '';
+      inner.style.maxWidth = '';
+      inner.style.boxSizing = '';
+      inner.style.display = '';
+      inner.style.margin = '';
+    }
+  }
+
+  /** พรีวิว embed: วางกล่อง 3–2–1 กลางจอ / ชิดโซนทองหรือโซนกลาง / ชิดกริด carryEmbedCountdownArea — ตาม carryEmbedCountdownAnchor */
+  function syncQuizCarryEmbedCountdownLayout() {
+    if (!previewMode || !editorEmbedReturn || !mapData || !isQuizCarry()) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const inner = document.getElementById('quiz-carry-embed-countdown-inner');
+    const canvasEl = document.getElementById('game-canvas');
+    if (!ov || !inner || !canvasEl) return;
+    if (ov.classList.contains('is-hidden')) {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    const anchor = carryEmbedCountdownAnchorResolved();
+    if (anchor === 'screen') {
+      resetQuizCarryEmbedCountdownLayoutDom();
+      return;
+    }
+    let bounds = null;
+    if (anchor === 'grid') {
+      bounds = getTileBoundsForOnesGrid(mapData.carryEmbedCountdownArea);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    } else {
+      bounds = getQuizCarryQuestionAreaTileBounds(mapData) || getQuizCarryHubTileBounds(mapData);
+      if (!bounds) {
+        resetQuizCarryEmbedCountdownLayoutDom();
+        return;
+      }
+    }
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const l = (bounds.minX * tileSize - camX) * zoom + canvasEl.width / 2;
+    const t = (bounds.minY * tileSize - camY) * zoom + canvasEl.height / 2;
+    const wPx = (bounds.maxX - bounds.minX + 1) * tileSize * zoom;
+    const hPx = (bounds.maxY - bounds.minY + 1) * tileSize * zoom;
+    const r = canvasEl.getBoundingClientRect();
+    const sl = r.left + l;
+    const st = r.top + t;
+    ov.classList.add('quiz-carry-embed-countdown--map-anchor');
+    inner.classList.add('quiz-carry-embed-countdown-inner--map-rect');
+    inner.style.position = 'fixed';
+    inner.style.left = Math.round(sl) + 'px';
+    inner.style.top = Math.round(st) + 'px';
+    inner.style.width = Math.round(Math.max(100, wPx)) + 'px';
+    inner.style.height = Math.round(Math.max(72, hPx)) + 'px';
+    inner.style.transform = 'none';
+    inner.style.boxSizing = 'border-box';
+    inner.style.display = 'flex';
+    inner.style.flexDirection = 'column';
+    inner.style.alignItems = 'center';
+    inner.style.justifyContent = 'center';
+    inner.style.margin = '0';
+    inner.style.maxWidth = 'none';
+  }
+
+  /** quiz_carry + embed: คำถามไปที่แผงทองบนแผนที่ / ใน overlay นับถอยหลัง — ไม่ใช้แถบบน */
+  function syncQuizCarryEmbedQuestionStrip() {
+    const wrap = document.getElementById('quiz-carry-embed-q-strip');
+    const p = document.getElementById('quiz-carry-embed-q-strip-text');
+    if (!wrap || !p) return;
+    wrap.classList.remove('quiz-carry-embed-q-strip--countdown');
+    wrap.classList.add('is-hidden');
+    wrap.setAttribute('aria-hidden', 'true');
+  }
+
+  function updatePlayQuizTimerDisplay() {
+    const el = document.getElementById('quiz-game-timer');
+    if (!el) return;
+    if (!playQuizPhaseEndsAt) {
+      el.textContent = '';
+      return;
+    }
+    const s = Math.max(0, Math.ceil((playQuizPhaseEndsAt - Date.now()) / 1000));
+    el.textContent = s + ' วินาที';
+  }
+
+  function clampPreviewMs(n, def, minV, maxV) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(minV, Math.min(maxV, Math.floor(v)));
+  }
+
+  function clampCarrySessionLen(n, def) {
+    const v = Number(n);
+    if (Number.isNaN(v)) return def;
+    return Math.max(0, Math.min(500, Math.floor(v)));
+  }
+
+  function buildQuizPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    return md.quizQuestions
+      .filter((q) => q && String(q.text || '').trim())
+      .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+  }
+
+  function pickRandomQuizFromPool(pool) {
+    if (!pool || !pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function clearPreviewBotAnswerPaths() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function resetPreviewBotsQuizState() {
+    if (!previewFillBots) return;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.quizCannotTrue = false;
+      o.quizCannotFalse = false;
+      o.botPath = [];
+      o.botAnswerWander = false;
+    });
+  }
+
+  function applyPreviewReadPhase(q, poolLen) {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'read';
+    playQuizPhaseLocal = 'read';
+    previewQuizCurrent = q;
+    playQuizText = q.text;
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.readMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] อ่านคำถาม · สุ่มจากชุด ' + poolLen + ' ข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'โซนทองบนแผนที่ = ข้อความคำถาม · ฟ้า = จริง · ชมพู = เท็จ';
+  }
+
+  function applyPreviewAnswerPhase() {
+    previewQuizStep = 'answer';
+    playQuizPhaseLocal = 'answer';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.answerMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] เดินไปโซน ถูก / ผิด';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg && previewQuizCurrent) {
+      leg.textContent = previewQuizCurrent.answerTrue
+        ? 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «จริง» — โซนสีฟ้า'
+        : 'เฉลย (ทดสอบ): คำตอบที่ถูกคือ «เท็จ» — โซนสีชมพู';
+    }
+    previewBotsPrepareAnswerRound();
+  }
+
+  function applyPreviewBetweenPhase() {
+    clearPreviewBotAnswerPaths();
+    previewQuizStep = 'between';
+    playQuizPhaseLocal = null;
+    playQuizText = 'ข้อถัดไปกำลังจะมา…';
+    playQuizPhaseEndsAt = Date.now() + previewQuizTiming.betweenMs;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = '[ทดสอบ] พักระหว่างข้อ';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) leg.textContent = 'รอสักครู่แล้วจะสุ่มคำถามใหม่จากชุดเดิม';
+  }
+
+  function quizCellOnPlay(grid, x, y) {
+    return !!(grid && grid[y] && grid[y][x] === 1);
+  }
+
+  function spawnTileWalkablePlay(md, x, y) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    if (x < 0 || x >= w || y < 0 || y >= h) return false;
+    const row = md.objects && md.objects[y];
+    if (row && row[x] === 1) return false;
+    return true;
+  }
+
+  /** เหมือน server pickRandomSpawnFromMap — สุ่มด้วย crypto.getRandomValues */
+  function pickRandomSpawnFromMapPlay(md) {
+    const fallback = md.spawn || { x: 1, y: 1 };
+    const fx = Number.isFinite(Number(fallback.x)) ? Number(fallback.x) : 1;
+    const fy = Number.isFinite(Number(fallback.y)) ? Number(fallback.y) : 1;
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return { x: fx, y: fy };
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return { x: fx, y: fy };
+    const u = new Uint32Array(1);
+    (typeof crypto !== 'undefined' && crypto.getRandomValues)
+      ? crypto.getRandomValues(u)
+      : (u[0] = (Math.floor(Math.random() * 0xffffffff) >>> 0));
+    const pick = pool[u[0] % pool.length];
+    return { x: pick.x, y: pick.y };
+  }
+
+  function parseLobbyPlayerSpawnsFromMapPlay(md) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const out = [null, null, null, null, null, null];
+    const raw = md && md.lobbyPlayerSpawns;
+    if (!Array.isArray(raw)) return out;
+    for (let i = 0; i < 6 && i < raw.length; i++) {
+      const cell = raw[i];
+      if (!cell || typeof cell !== 'object') continue;
+      const x = Math.floor(Number(cell.x));
+      const y = Math.floor(Number(cell.y));
+      if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
+      if (x < 0 || x >= w || y < 0 || y >= h) continue;
+      out[i] = { x, y };
+    }
+    return out;
+  }
+
+  /** สอดคล้องกับ server pickSpawnForJoin — ใช้พรีวิวบอท / ทดสอบ */
+  function pickSpawnForJoinPlay(md, joinOrderIndex) {
+    if (!md) return { x: 1, y: 1 };
+    const mode = md.lobbySpawnMode;
+    const ord = joinOrderIndex | 0;
+    if (mode === 'slots6' && ord >= 6) return pickRandomSpawnFromMapPlay(md);
+    const j = Math.min(Math.max(0, ord), 5);
+    if (mode === 'fixed' && md.spawn) {
+      const fx = Number.isFinite(Number(md.spawn.x)) ? Math.floor(Number(md.spawn.x)) : 1;
+      const fy = Number.isFinite(Number(md.spawn.y)) ? Math.floor(Number(md.spawn.y)) : 1;
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const x = Math.max(0, Math.min(w - 1, fx));
+      const y = Math.max(0, Math.min(h - 1, fy));
+      if (spawnTileWalkablePlay(md, x, y)) return { x, y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    if (mode === 'slots6') {
+      const slots = parseLobbyPlayerSpawnsFromMapPlay(md);
+      const pick = slots[j];
+      if (pick && spawnTileWalkablePlay(md, pick.x, pick.y)) return { x: pick.x, y: pick.y };
+      return pickRandomSpawnFromMapPlay(md);
+    }
+    return pickRandomSpawnFromMapPlay(md);
+  }
+
+  const GAUNTLET_PREVIEW_MAX = 6;
+  function gauntletSpawnYsPlay(md, playerCount) {
+    const h = md.height || 15;
+    const lo = 1;
+    const hi = Math.max(lo, h - 2);
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    if (hi <= lo) return Array.from({ length: n }, () => lo);
+    const ys = [];
+    for (let i = 0; i < n; i++) {
+      ys.push(Math.round(lo + (i * (hi - lo)) / Math.max(1, n - 1)));
+    }
+    return ys;
+  }
+  function collectGauntletSpawnSlotsFromSpawnAreaPlay(md) {
+    const grid = md.spawnArea;
+    if (!grid || !Array.isArray(grid)) return [];
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const slots = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && spawnTileWalkablePlay(md, x, y)) slots.push({ x, y });
+      }
+    }
+    slots.sort((a, b) => a.y - b.y || a.x - b.x);
+    return slots;
+  }
+  function collectGauntletSpawnSlotsPlay(md) {
+    const explicit = md.gauntletPlayerSpawns;
+    if (Array.isArray(explicit) && explicit.length > 0) {
+      const w = md.width || 20;
+      const h = md.height || 15;
+      const slots = [];
+      for (const raw of explicit) {
+        if (slots.length >= GAUNTLET_PREVIEW_MAX) break;
+        const x = Math.floor(Number(raw && raw.x));
+        const y = Math.floor(Number(raw && raw.y));
+        if (!Number.isFinite(x) || !Number.isFinite(y) || x < 0 || x >= w || y < 0 || y >= h) continue;
+        if (!spawnTileWalkablePlay(md, x, y)) continue;
+        slots.push({ x, y });
+      }
+      if (slots.length > 0) return slots;
+    }
+    return collectGauntletSpawnSlotsFromSpawnAreaPlay(md);
+  }
+  function gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotXFallback) {
+    const w = md.width || 20;
+    if (spawnTileWalkablePlay(md, spawnColX, y)) return spawnColX;
+    if (slotXFallback != null && spawnTileWalkablePlay(md, slotXFallback, y)) return slotXFallback;
+    for (let d = 0; d < w; d++) {
+      if (spawnColX + d < w && spawnTileWalkablePlay(md, spawnColX + d, y)) return spawnColX + d;
+      if (spawnColX - d >= 0 && spawnTileWalkablePlay(md, spawnColX - d, y)) return spawnColX - d;
+    }
+    return Math.max(0, Math.min(w - 1, spawnColX));
+  }
+  function gauntletSpawnPositionsPlay(md, playerCount) {
+    const n = Math.min(GAUNTLET_PREVIEW_MAX, Math.max(1, playerCount));
+    const slots = collectGauntletSpawnSlotsPlay(md);
+    const fallbackYs = gauntletSpawnYsPlay(md, n);
+    const spawnColX = slots.length ? Math.min(...slots.map((s) => s.x)) : 1;
+    const out = [];
+    for (let i = 0; i < n; i++) {
+      const y = i < slots.length
+        ? slots[i].y
+        : (fallbackYs[i] != null ? fallbackYs[i] : fallbackYs[fallbackYs.length - 1]);
+      const slotX = i < slots.length ? slots[i].x : null;
+      const x = gauntletResolveSpawnXForRowPlay(md, spawnColX, y, slotX);
+      out.push({ x, y });
+    }
+    return out;
+  }
+  /**
+   * โหมดทดสอบพรมแดง: จัดตำแหน่งเกิดให้ตรง server (spawnArea หรือกระจาย y)
+   * @param {boolean} [onlyBots=false] ถ้า true = จัดแค่บอท (หลัง game-start; ไม่ทับ me/คนจริงจาก peersSnap)
+   */
+  function applyGauntletPreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'gauntlet') return;
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    const humanCount = 1 + realIds.length;
+    const total = Math.min(GAUNTLET_PREVIEW_MAX, humanCount + botIds.length);
+    const pos = gauntletSpawnPositionsPlay(mapData, total);
+    if (onlyBots) {
+      let idx = humanCount;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || idx >= pos.length) return;
+        o.x = pos[idx].x;
+        o.tx = pos[idx].x;
+        o.y = pos[idx].y;
+        o.ty = pos[idx].y;
+        idx++;
+      });
+      return;
+    }
+    let idx = 0;
+    if (idx < pos.length) {
+      me.x = pos[idx].x;
+      me.y = pos[idx].y;
+      me.tx = me.x;
+      me.ty = me.y;
+      idx++;
+    }
+    realIds.forEach((rid) => {
+      const o = others.get(rid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+    botIds.forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || idx >= pos.length) return;
+      o.x = pos[idx].x;
+      o.tx = pos[idx].x;
+      o.y = pos[idx].y;
+      o.ty = pos[idx].y;
+      idx++;
+    });
+  }
+
+  function isPreviewBotId(id) {
+    return typeof id === 'string' && id.indexOf(PREVIEW_BOT_PREFIX) === 0;
+  }
+
+  function countPlayHumans() {
+    let n = 1;
+    others.forEach((_, id) => { if (!isPreviewBotId(id)) n++; });
+    return n;
+  }
+
+  function rebalancePreviewBots() {
+    if (!playBotsEnabled() || !mapData) return;
+    if (isDetectiveMinigamePlay() && isQuizCarry()) {
+      /* บอทคดีสืบสวน — ใช้ stepQuizCarryPreviewBots */
+    }
+    const human = countPlayHumans();
+    const wantBots = Math.max(0, playBotTargetHeadcount() - human);
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      if (o.botTier == null) {
+        const tierRoll = Math.random();
+        o.botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      }
+      if (o.quizCannotTrue == null) o.quizCannotTrue = false;
+      if (o.quizCannotFalse == null) o.quizCannotFalse = false;
+      if (!Array.isArray(o.botPath)) o.botPath = [];
+      if (o.botAnswerWander == null) o.botAnswerWander = false;
+      if (o.gauntletJumpTicks == null) o.gauntletJumpTicks = 0;
+      if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+      if (o.gauntletScore == null) {
+        o.gauntletScore = (mapData && mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) ? 100 : 0;
+      }
+      if (o.gauntletEliminated == null) o.gauntletEliminated = false;
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+        o.botWanderDx = wd[0];
+        o.botWanderDy = wd[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') {
+        o.botWanderNextTurn = Date.now() + 400 + Math.floor(Math.random() * 900);
+      }
+    });
+    let botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length > wantBots) {
+      const drop = botIds.pop();
+      if (drop) others.delete(drop);
+    }
+    botIds = [...others.keys()].filter(isPreviewBotId);
+    while (botIds.length < wantBots) {
+      const id = PREVIEW_BOT_PREFIX + (++previewBotSeq);
+      const joinIdx = countPlayHumans() + botIds.length;
+      const sp = pickSpawnForJoinPlay(mapData, joinIdx);
+      const jx = (Math.random() - 0.5) * 0.4;
+      const jy = (Math.random() - 0.5) * 0.4;
+      let x = sp.x + 0.5 + jx;
+      let y = sp.y + 0.5 + jy;
+      if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+        const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(x, y);
+        x = pathSnap.x;
+        y = pathSnap.y;
+      }
+      const tierRoll = Math.random();
+      const botTier = tierRoll < 0.28 ? 'sharp' : tierRoll < 0.62 ? 'avg' : 'weak';
+      const wd = [[0, -1], [0, 1], [-1, 0], [1, 0]][Math.floor(Math.random() * 4)];
+      const crownStart = mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay();
+        others.set(id, {
+        x, y, tx: x, ty: y,
+        direction: ['down', 'up', 'left', 'right'][Math.floor(Math.random() * 4)],
+        nickname: 'บอท',
+        characterId: getPlayCharacterId(),
+        playTint: playTintFromPeerId(id),
+        botTier,
+        gauntletJumpTicks: 0,
+        gauntletJumpVis: 0,
+        gauntletScore: crownStart ? 100 : 0,
+        gauntletEliminated: false,
+        quizCannotTrue: false,
+        quizCannotFalse: false,
+        quizCarryHeld: null,
+        botPath: [],
+        botAnswerWander: false,
+        botWanderDx: wd[0],
+        botWanderDy: wd[1],
+        botWanderNextTurn: Date.now() + 400 + Math.floor(Math.random() * 1000),
+        jumpSurviveEliminated: false,
+        spaceShooterScore: 0,
+        balloonBossScore: 0,
+        balloonBossBalloons: 5,
+        balloonBossEliminated: false,
+        botQuizCarryPathfindAfter: performance.now() + previewBotSeq * 75 + Math.floor(Math.random() * 160),
+      });
+      botIds.push(id);
+    }
+    let k = 0;
+    [...others.keys()].filter(isPreviewBotId).sort().forEach((bid) => {
+      const o = others.get(bid);
+      if (!o) return;
+      const tag = o.botTier === 'sharp' ? '(ฉลาด)' : o.botTier === 'weak' ? '(พลาดบ่อย)' : '(กลาง)';
+      o.nickname = 'บอท ' + (++k) + ' ' + tag;
+    });
+    if (mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData)) {
+      [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+        const o = others.get(bid);
+        if (!o) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      const t0 = performance.now();
+      [...others.keys()].filter(isPreviewBotId).forEach((bid, idx) => {
+        const o = others.get(bid);
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = t0 + idx * 90 + Math.floor(Math.random() * 140);
+      });
+    }
+    if (mapData.gameType === 'gauntlet') {
+      applyGauntletPreviewSpawnLayout(false);
+      emitGauntletPreviewRowsToServer();
+    }
+    if (mapData.gameType === 'stack') {
+      applyStackPreviewSpawnLayout();
+      rebuildStackPreviewTurnOrder();
+    }
+    if (mapData.gameType === 'jump_survive') {
+      applyJumpSurvivePreviewSpawnLayout(false);
+    }
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (quizCarryPregameActive && mapData && mapData.gameType === 'quiz_carry') updateQuizCarryPregameHud();
+  }
+
+  function pickRandomWalkableCellInAnswerGrid(grid, o) {
+    if (!grid || !mapData) return null;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = grid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] !== 1) continue;
+        if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, NaN, NaN, o)) pool.push({ x, y });
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  /** ช่วงตอบ: บอทสุ่มเดินไปโซนถูก/ผิด/เดินมั่ว ตามระดับ (ฉลาด/กลาง/พลาดบ่อย) */
+  function previewBotsPrepareAnswerRound() {
+    if (!previewFillBots || !mapData || !isQuiz() || !previewQuizCurrent) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botPath = [];
+      o.botAnswerWander = false;
+      const tier = o.botTier || 'avg';
+      let pCorrect = 0.52;
+      if (tier === 'sharp') pCorrect = 0.84;
+      else if (tier === 'weak') pCorrect = 0.22;
+      if (Math.random() < 0.14) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const wantsCorrect = Math.random() < pCorrect;
+      const targetTrue = wantsCorrect ? correctTrue : !correctTrue;
+      const zoneGrid = targetTrue ? qt : qf;
+      const dest = pickRandomWalkableCellInAnswerGrid(zoneGrid, o);
+      if (!dest) {
+        o.botAnswerWander = true;
+        return;
+      }
+      const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+      if (!path || path.length <= 1) {
+        o.botAnswerWander = true;
+        return;
+      }
+      o.botPath = path.slice(1);
+    });
+  }
+
+  /** คัดลอกตรรกะจาก server — ดีดออกนอกโซนจริง/เท็จ (โหมดทดสอบ preview บน play.html) */
+  function findNearestOutsideQuizAnswerZonesPlay(md, sx, sy) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const tGrid = md.quizTrueArea || [];
+    const fGrid = md.quizFalseArea || [];
+    const inAnswer = (x, y) => quizCellOnPlay(tGrid, x, y) || quizCellOnPlay(fGrid, x, y);
+    const walkable = (x, y) => {
+      if (x < 0 || x >= w || y < 0 || y >= h) return false;
+      const row = md.objects && md.objects[y];
+      return row && row[x] !== 1;
+    };
+    const fx = Math.floor(Number(sx));
+    const fy = Math.floor(Number(sy));
+    if (!walkable(fx, fy)) {
+      const sp = md.spawn || { x: 1, y: 1 };
+      return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+    }
+    if (!inAnswer(fx, fy)) return { x: sx, y: sy };
+    const q = [[fx, fy]];
+    const seen = new Set([`${fx},${fy}`]);
+    const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+    while (q.length) {
+      const [cx, cy] = q.shift();
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = cx + dirs[di][0];
+        const ny = cy + dirs[di][1];
+        const k = `${nx},${ny}`;
+        if (seen.has(k)) continue;
+        if (!walkable(nx, ny)) continue;
+        seen.add(k);
+        if (!inAnswer(nx, ny)) {
+          return { x: nx + 0.5, y: ny + 0.5 };
+        }
+        q.push([nx, ny]);
+      }
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+  }
+
+  function quizResolveChoiceFromStanding(ox, oy, correctTrue) {
+    const tx = Math.floor(ox);
+    const ty = Math.floor(oy);
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    const inT = quizCellOnPlay(qt, tx, ty);
+    const inF = quizCellOnPlay(qf, tx, ty);
+    let choice = null;
+    if (inT && !inF) choice = true;
+    else if (inF && !inT) choice = false;
+    else if (inT && inF) choice = true;
+    const right = choice !== null && choice === correctTrue;
+    return { choice, right };
+  }
+
+  /** เฉลยรอบทดสอบบนเครื่อง — ให้พฤติกรรมใกล้เคียง server (ผิด = ล็อกโซน + ดีดออก) */
+  function resolvePreviewQuizRound() {
+    if (!previewMode || !mapData || !isQuiz() || !previewQuizCurrent || myId == null) return;
+    const correctTrue = !!previewQuizCurrent.answerTrue;
+    const results = [];
+    const mine = quizResolveChoiceFromStanding(me.x, me.y, correctTrue);
+    let right = mine.right;
+    let choice = mine.choice;
+    if (mine.right) {
+      playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+    } else {
+      playQuizPlayerLocal.cannotTrue = true;
+      playQuizPlayerLocal.cannotFalse = true;
+      const sp = pickRandomSpawnFromMapPlay(mapData);
+      const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+      me.x = pos.x;
+      me.y = pos.y;
+      socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+    }
+    results.push({
+      id: myId,
+      right,
+      choice,
+      score: playLiveQuizScores[myId] != null ? playLiveQuizScores[myId] : 0,
+    });
+    if (previewFillBots) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const br = quizResolveChoiceFromStanding(o.x, o.y, correctTrue);
+        o.botPath = [];
+        o.botAnswerWander = false;
+        if (br.right) {
+          playLiveQuizScores[id] = (playLiveQuizScores[id] || 0) + 1;
+        } else {
+          o.quizCannotTrue = true;
+          o.quizCannotFalse = true;
+          const sp = pickRandomSpawnFromMapPlay(mapData);
+          const pos = findNearestOutsideQuizAnswerZonesPlay(mapData, sp.x + 0.5, sp.y + 0.5);
+          o.x = pos.x + (Math.random() - 0.5) * 0.35;
+          o.y = pos.y + (Math.random() - 0.5) * 0.35;
+        }
+        results.push({
+          id,
+          right: br.right,
+          choice: br.choice,
+          score: playLiveQuizScores[id] != null ? playLiveQuizScores[id] : 0,
+        });
+      });
+    }
+    const r = { results, scores: { ...playLiveQuizScores } };
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    showPlayQuizFeedback(r);
+  }
+
+  function advancePreviewQuizIfDue() {
+    if (!previewMode || !isQuiz() || !playQuizPhaseEndsAt || Date.now() < playQuizPhaseEndsAt) return;
+    const pool = previewQuizPool;
+    if (!pool || !pool.length) return;
+    if (previewQuizStep === 'read') {
+      applyPreviewAnswerPhase();
+      return;
+    }
+    if (previewQuizStep === 'answer') {
+      resolvePreviewQuizRound();
+      applyPreviewBetweenPhase();
+      return;
+    }
+    if (previewQuizStep === 'between') {
+      const q = pickRandomQuizFromPool(pool);
+      if (q) applyPreviewReadPhase(q, pool.length);
+    }
+  }
+
+  async function loadPreviewQuizAndStart() {
+    resetPreviewBotsQuizState();
+    let settings = null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) settings = await r.json();
+    } catch (e) { /* use map fallback */ }
+    let pool = [];
+    if (settings && Array.isArray(settings.questions) && settings.questions.length) {
+      pool = settings.questions
+        .filter((q) => q && String(q.text || '').trim())
+        .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }));
+    }
+    if (!pool.length && mapData) pool = buildQuizPoolFromMap(mapData);
+    previewQuizPool = pool;
+    const dRead = 10000;
+    const dAns = 5000;
+    const dBet = 3500;
+    previewQuizTiming = {
+      readMs: clampPreviewMs(settings && settings.readMs, dRead, 1000, 300000),
+      answerMs: clampPreviewMs(settings && settings.answerMs, dAns, 1000, 300000),
+      betweenMs: clampPreviewMs(settings && settings.betweenMs, dBet, 0, 300000),
+    };
+    previewQuizCurrent = null;
+    if (!pool.length) {
+      playQuizPhaseLocal = 'read';
+      previewQuizStep = 'read';
+      playQuizText = 'ยังไม่มีคำถามในชุด — ตั้งคำถามใน Admin → คำถามเกม หรือในแมป (quizQuestions)';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] ไม่มีคำถามในระบบ';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      const leg = document.getElementById('quiz-play-legend');
+      if (leg) leg.textContent = 'โซนสีบนแผนที่ยังใช้ดูเลย์เอาต์ได้ตามปกติ';
+      initPlayLiveQuizScoresZeros();
+      startPlayQuizTimer();
+      return;
+    }
+    const q = pickRandomQuizFromPool(pool);
+    if (q) applyPreviewReadPhase(q, pool.length);
+    initPlayLiveQuizScoresZeros();
+    startPlayQuizTimer();
+  }
+
+  function startPlayQuizTimer() {
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(() => {
+      updatePlayQuizTimerDisplay();
+      advancePreviewQuizIfDue();
+    }, 200);
+    updatePlayQuizTimerDisplay();
+  }
+
+  function teardownPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    const mapQText = document.getElementById('quiz-map-question-text');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+      clearQuizMapPanelThemeInline(panel, mapQText);
+    }
+    playQuizPhaseLocal = null;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    previewQuizPool = [];
+    previewQuizCurrent = null;
+    previewQuizStep = 'read';
+    playLiveQuizScores = {};
+    playPath = [];
+    hidePlayQuizHud();
+    quizCarryJoinSettingsSnap = null;
+    quizCarryMapPanelTheme = null;
+    quizCarryChoicePlaqueThemes = null;
+    resetQuizCarryPlayState();
+    resetQuizBattlePlayState();
+    const grabBtnTeardown = document.getElementById('quiz-carry-grab-btn');
+    if (grabBtnTeardown) {
+      grabBtnTeardown.classList.add('is-hidden');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--active');
+      grabBtnTeardown.classList.remove('quiz-carry-grab-btn--place');
+      grabBtnTeardown.style.pointerEvents = '';
+      const im = grabBtnTeardown.querySelector('img');
+      if (im) im.src = '/Game/img/quiz-carry/btn-grab.png';
+    }
+  }
+
+  function setupPlayQuizUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    const leg = document.getElementById('quiz-play-legend');
+    if (previewMode) {
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = '[ทดสอบ] กำลังโหลดคำถาม…';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'ดึงชุดคำถามจาก /api/quiz-settings (หรือจากแมป)…';
+      if (leg) leg.textContent = '';
+      loadPreviewQuizAndStart();
+    } else {
+      playQuizPhaseLocal = null;
+      playQuizText = 'รอคำถามจากโฮสต์…';
+      playQuizPhaseEndsAt = 0;
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'แมพตอบคำถาม';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = 'เข้าร่วมห้องแล้ว — เมื่อโฮสต์เริ่มเกม ข้อความและเวลาจะอัปเดตที่นี่ (เล่นจริงแนะนำผ่าน room-lobby)';
+      if (leg) leg.textContent = 'โซนสีบนแผนที่คือจุดตอบเหมือนใน Lobby';
+      const tEl = document.getElementById('quiz-game-timer');
+      if (tEl) tEl.textContent = '';
+    }
+  }
+
+  function isFrogger() { return mapData && mapData.gameType === 'frogger'; }
+  function isGauntlet() { return mapData && mapData.gameType === 'gauntlet'; }
+  function isGauntletFaceRightMapMno9kb07() {
+    return !!(isGauntlet() && playSessionMapId === GAUNTLET_FACE_RIGHT_MAP_ID);
+  }
+  /** Crown heist rules + UI (เดียวกับหันขวา — ฉาก mno9kb07) */
+  function isGauntletCrownHeistMapPlay() {
+    return isGauntletFaceRightMapMno9kb07();
+  }
+  let gauntletCrownHowtoVisible = false;
+  function isGauntletCrownPregameBlockingPlay() {
+    if (!isGauntletCrownHeistMapPlay()) return false;
+    if (gauntletCrownRunHeldRemote) return true;
+    if (gauntletCrownPregamePhase != null && gauntletCrownPregamePhase !== 'live') return true;
+    return false;
+  }
+  function isStack() { return mapData && mapData.gameType === 'stack'; }
+  function isJumpSurvive() { return mapData && mapData.gameType === 'jump_survive'; }
+
+  function currentPlayMapId() {
+    const q = (playSessionMapId || '').trim();
+    if (q) return q;
+    if (mapData && mapData.id != null && String(mapData.id).trim() !== '') return String(mapData.id).trim();
+    return (playMapIdFromQuery || '').trim();
+  }
+
+  function isJumpSurviveMissionUiMapPlay() {
+    return isJumpSurvive() && currentPlayMapId() === JUMP_SURVIVE_MISSION_MAP_ID;
+  }
+
+  function isJumpSurviveMissionPregameBlockingPlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return false;
+    return jumpSurviveMissionPhase != null && jumpSurviveMissionPhase !== 'live' && jumpSurviveMissionPhase !== 'ended';
+  }
+
+  function jumperAssetUrl(file) {
+    return BASE + '/img/Jumper/' + file;
+  }
+
+  function hideConflictingOverlaysForJumpSurviveMission() {
+    hideConflictingOverlaysForGauntletCrown();
+  }
+
+  function jumpSurviveTimeLimitSecForMission() {
+    const m = Number(mapData && mapData.jumpSurviveTimeSec);
+    if (Number.isFinite(m) && m > 0 && m < 7200) return Math.floor(m);
+    const j = Number(playJumpSurviveMissionTimeSec);
+    if (Number.isFinite(j) && j > 0 && j < 7200) return Math.floor(j);
+    return 60;
+  }
+
+  function jumpSurviveRemainingSecMission() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveSessionStartMs <= 0) return null;
+    const lim = jumpSurviveTimeLimitSecForMission();
+    if (!(lim > 0)) return null;
+    const elapsed = (performance.now() - jumpSurviveSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function applyJumpSurviveJumperPanelImages() {
+    const howtoBg = document.querySelector('#gauntlet-crown-howto-overlay .gch-bg');
+    if (howtoBg) {
+      howtoBg.src = jumperAssetUrl('popup-Howto.png');
+      howtoBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-Howto.png';
+      };
+    }
+    const resBg = document.querySelector('#gauntlet-crown-mission-overlay .gcm-bg');
+    if (resBg) {
+      resBg.src = jumperAssetUrl('popup-result.png');
+      resBg.onerror = function () {
+        this.onerror = null;
+        this.src = BASE + '/img/gauntlet-assets/popup-result.png';
+      };
+    }
+  }
+
+  function showJumpSurviveMissionHowtoOverlay() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    hideConflictingOverlaysForJumpSurviveMission();
+    applyJumpSurviveJumperPanelImages();
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    jumpSurviveMissionPhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.textContent = '';
+      st.classList.remove('gch-status--jumper');
+      st.classList.add('is-hidden');
+    }
+    const btn = document.getElementById('btn-gch-ready');
+    if (btn) {
+      const humans = quizCarryPregameHumanIds();
+      const soleHuman = humans.length === 1;
+      const canGo = soleHuman || isMePlayHost();
+      btn.classList.remove('is-start-phase');
+      btn.classList.toggle('is-read-only', !canGo);
+      btn.disabled = !canGo;
+      btn.title = canGo ? 'READY — เริ่มนับถอยหลัง' : 'รอโฮสต์ · Wait for host';
+      btn.setAttribute('aria-pressed', 'false');
+    }
+  }
+
+  function beginJumpSurviveMissionCountdownThenRun() {
+    if (!isJumpSurviveMissionUiMapPlay()) return;
+    if (jumperMissionCountdownTimer) {
+      clearTimeout(jumperMissionCountdownTimer);
+      jumperMissionCountdownTimer = null;
+    }
+    jumpSurviveMissionPhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    if (st) {
+      st.classList.add('is-hidden');
+      st.classList.remove('gch-status--jumper');
+    }
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = function () {
+      if (cd) cd.classList.add('is-hidden');
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      jumpSurviveMissionPhase = 'live';
+      jumpSurviveGameEnded = false;
+      jumpSurviveEliminated = false;
+      jumpSurviveInitRuntime();
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = function () {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        jumperMissionCountdownTimer = setTimeout(step, 1000);
+      } else {
+        jumperMissionCountdownTimer = null;
+        runFinish();
+      }
+    };
+    jumperMissionCountdownTimer = setTimeout(step, 1000);
+  }
+
+  /** Jumper ภารกิจ mnptfts2: เกรดจากจำนวนผู้รอด — 6=A … 3=D; น้อยกว่า 2 = F; พอดี 2 คน = E */
+  function jumpSurviveGradeFromSurvivorCount(survivors) {
+    const s = Math.max(0, Math.floor(Number(survivors) || 0));
+    if (s >= 6) return 'A';
+    if (s === 5) return 'B';
+    if (s === 4) return 'C';
+    if (s === 3) return 'D';
+    if (s === 2) return 'E';
+    return 'F';
+  }
+
+  function jumpSurviveRollRewardCardForGrade(grade) {
+    if (grade === 'F') return null;
+    const r = Math.random();
+    if (grade === 'A' || grade === 'B') {
+      if (r < 0.35) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.7) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C' || grade === 'D') {
+      if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+      if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'E') {
+      if (r < 0.12) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.25) return { kind: 'bail', th: 'เหรียญประกัน · Bail Coin', en: 'Bail Coin' };
+    if (r < 0.45) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  function jumpSurviveMissionTotalParticipants() {
+    let n = myId != null ? 1 : 0;
+    if (others && typeof others.size === 'number') n += others.size;
+    return n;
+  }
+
+  function jumpSurviveMissionCountAlive() {
+    let n = 0;
+    if (myId != null && !jumpSurviveEliminated) n++;
+    if (others && typeof others.forEach === 'function') {
+      others.forEach(function (o) {
+        if (o && !o.jumpSurviveEliminated) n++;
+      });
+    }
+    return n;
+  }
+
+  /** จบทันทีเมื่อไม่มีผู้รอด หรือเหลือคนเดียว (หลายคนในรอบ) — โหมด solo 1 คนยังเล่นจนหมดเวลา */
+  function jumpSurviveMissionMaybeEarlyFinish() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+    const total = jumpSurviveMissionTotalParticipants();
+    const alive = jumpSurviveMissionCountAlive();
+    if (alive === 0) {
+      endJumpSurviveMissionRound();
+      return;
+    }
+    if (total >= 2 && alive === 1) {
+      endJumpSurviveMissionRound();
+    }
+  }
+
+  function jumpSurviveBuildMissionPayload() {
+    const rows = [];
+    const pushEnt = function (id, nickname, characterId, eliminated) {
+      const alive = !eliminated;
+      const baseScore = alive ? 100 : 0;
+      rows.push({
+        id: id,
+        nickname: (nickname && String(nickname).trim()) ? String(nickname).trim() : String(id),
+        characterId: characterId ?? null,
+        baseScore: baseScore,
+        eliminated: !!eliminated,
+        rankBonus: 0,
+        finalScore: baseScore,
+      });
+    };
+    if (myId != null) {
+      pushEnt(myId, (me.nickname || nick || 'คุณ').trim() || 'คุณ', me.characterId || getPlayCharacterId(), jumpSurviveEliminated);
+    }
+    others.forEach(function (o, id) {
+      if (!o) return;
+      pushEnt(id, o.nickname, o.characterId, !!o.jumpSurviveEliminated);
+    });
+    rows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < rows.length; si++) {
+      if (rows[si] && !rows[si].eliminated) survivorCount++;
+    }
+    const participantCount = rows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = rows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: row.baseScore,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const rewardCard = jumpSurviveRollRewardCardForGrade(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function jumpSurviveMergePreviewBotsMission(mission) {
+    if (!mission || mission.uiSkin !== 'jumper' || !previewFillBots || !others || typeof others.forEach !== 'function') return mission;
+    const seen = new Set();
+    (mission.ranked || []).forEach(function (r) {
+      if (r && r.id != null) seen.add(String(r.id));
+    });
+    const baseRows = (mission.ranked || []).map(function (r) {
+      return {
+        id: r.id,
+        nickname: r.nickname,
+        characterId: r.characterId,
+        baseScore: Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+        rankBonus: 0,
+      };
+    });
+    others.forEach(function (o, id) {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.jumpSurviveEliminated ? 0 : 100,
+        eliminated: !!o.jumpSurviveEliminated,
+        rankBonus: 0,
+      });
+    });
+    baseRows.sort(function (a, b) {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      return String(a.nickname).localeCompare(String(b.nickname), 'th') || String(a.id).localeCompare(String(b.id));
+    });
+    let survivorCount = 0;
+    for (let si = 0; si < baseRows.length; si++) {
+      if (baseRows[si] && !baseRows[si].eliminated) survivorCount++;
+    }
+    const participantCount = baseRows.length;
+    const grade = jumpSurviveGradeFromSurvivorCount(survivorCount);
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map(function (row, idx) {
+      const pos = idx + 1;
+      const bs = Math.max(0, Number(row.baseScore) || 0);
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: bs,
+        eliminated: !!row.eliminated,
+        rank: pos,
+        rankLabel: pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos),
+        rankBonus: 0,
+        finalScore: bs,
+      };
+    });
+    const totalParts = ranked.map(function (r) { return r.baseScore; });
+    const totalSum = totalParts.reduce(function (s, n) { return s + n; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: jumpSurviveRollRewardCardForGrade(grade),
+      totalParts: totalParts,
+      uiSkin: 'jumper',
+      survivorCount: survivorCount,
+      participantCount: participantCount,
+    };
+  }
+
+  function endJumpSurviveMissionRound() {
+    if (!isJumpSurviveMissionUiMapPlay() || jumpSurviveGameEnded) return;
+    jumpSurviveGameEnded = true;
+    jumpSurviveMissionPhase = 'ended';
+    applyJumpSurviveJumperPanelImages();
+    const mission = jumpSurviveBuildMissionPayload();
+    showGauntletCrownMissionOverlay(mission);
+  }
+  function isSpaceShooter() { return mapData && mapData.gameType === 'space_shooter'; }
+  function isBalloonBoss() { return mapData && mapData.gameType === 'balloon_boss'; }
+  function isQuizCarry() { return mapData && mapData.gameType === 'quiz_carry'; }
+  function isQuizBattle() { return mapData && mapData.gameType === 'quiz_battle'; }
+
+  function quizCarryNeonColorForChoice(choiceIndex) {
+    const i = Math.max(0, choiceIndex | 0);
+    const h = (i * 47 + 100) % 360;
+    return 'hsl(' + h + ', 72%, 62%)';
+  }
+
+  function quizCarryMinimapOptionFillCss(ov) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice((Number(ov) | 0) - 1);
+    if (th.borderMode === 'fixed' && th.fixedBorder) {
+      const m = /^rgba?\(\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\s*(?:,\s*([0-9.]+)\s*)?\)$/i.exec(String(th.fixedBorder).trim());
+      if (m) {
+        const a0 = m[4] != null && m[4] !== '' ? Number(m[4]) : 1;
+        const aa = (Number.isFinite(a0) ? Math.max(0, Math.min(1, a0)) : 1) * 0.32;
+        const t = Math.round(aa * 1000) / 1000;
+        return 'rgba(' + m[1] + ',' + m[2] + ',' + m[3] + ',' + t + ')';
+      }
+    }
+    const i = Math.max(0, ov - 1);
+    const h = (i * 47 + 100) % 360;
+    return 'hsla(' + h + ', 58%, 52%, 0.32)';
+  }
+
+  function normalizeQuizCarryQuestionFromAny(q) {
+    if (!q) return null;
+    let text = String(q.text || q.question || q.prompt || q.title || '').trim();
+    if (Array.isArray(q.choices) && q.choices.length >= 2) {
+      const choices = q.choices.map((c) => String(c));
+      let ci = Number(q.correctIndex);
+      if (!Number.isFinite(ci) || ci < 0 || ci >= choices.length) ci = 0;
+      if (!text) text = 'เลือกคำตอบที่ถูกต้อง — หยิบตัวเลือกไปวางโซนส่งคำตอบ';
+      let chSlot = Number(q.countdownHighlightSlot);
+      if (!Number.isFinite(chSlot) || chSlot < 1 || chSlot > 16) chSlot = null;
+      else chSlot = Math.floor(chSlot);
+      let choiceImageUrls = null;
+      if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+        const urls = choices.map((_, idx) => sanitizeQuizCarryImageUrlClient(q.choiceImageUrls[idx]));
+        if (urls.some((u) => u)) choiceImageUrls = urls;
+      }
+      return { text, choices, correctIndex: ci, countdownHighlightSlot: chSlot, choiceImageUrls };
+    }
+    if (!text) return null;
+    const t = !!q.answerTrue;
+    return { text, choices: ['จริง', 'เท็จ'], correctIndex: t ? 0 : 1, countdownHighlightSlot: null };
+  }
+
+  function buildQuizCarryPoolFromMap(md) {
+    if (!md || !Array.isArray(md.quizQuestions)) return [];
+    const out = [];
+    for (let i = 0; i < md.quizQuestions.length; i++) {
+      const n = normalizeQuizCarryQuestionFromAny(md.quizQuestions[i]);
+      if (n) out.push(n);
+    }
+    return out;
+  }
+
+  function getQuizCarryHubTileBounds(md) {
+    if (!md || md.gameType !== 'quiz_carry') return null;
+    const grid = md.quizCarryHubArea;
+    if (!grid || !grid.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    for (let yy = 0; yy < grid.length; yy++) {
+      const row = grid[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (row[xx] === 1) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+        }
+      }
+    }
+    if (minX === Infinity) return null;
+    return { minX, minY, maxX, maxY };
+  }
+
+  /** จุดกลางโซนตัวเลือกหยิบมาวาง (ค่า grid 1..N = ลำดับ choices) เพื่อวาดข้อความบนแผนที่ */
+  function getQuizCarryOptionClusterBounds(md, slot1toN) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g.length) return null;
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let n = 0, sumX = 0, sumY = 0;
+    for (let yy = 0; yy < g.length; yy++) {
+      const row = g[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < row.length; xx++) {
+        if (Number(row[xx]) === slot1toN) {
+          if (xx < minX) minX = xx;
+          if (yy < minY) minY = yy;
+          if (xx > maxX) maxX = xx;
+          if (yy > maxY) maxY = yy;
+          sumX += xx + 0.5;
+          sumY += yy + 0.5;
+          n++;
+        }
+      }
+    }
+    if (!n || minX === Infinity) return null;
+    return {
+      minX, minY, maxX, maxY,
+      cx: sumX / n,
+      cy: sumY / n,
+    };
+  }
+
+  function canvasWordWrapLines(ctx, text, maxWidth) {
+    const raw = String(text || '').trim();
+    if (!raw) return [];
+    const words = raw.split(/\s+/);
+    const lines = [];
+    let cur = words[0];
+    for (let i = 1; i < words.length; i++) {
+      const w = words[i];
+      const test = cur + ' ' + w;
+      if (ctx.measureText(test).width <= maxWidth) cur = test;
+      else {
+        lines.push(cur);
+        cur = w;
+      }
+    }
+    lines.push(cur);
+    return lines;
+  }
+
+  function quizCarryOptionHeldByAnyone(optionIdx) {
+    if (optionIdx == null || optionIdx < 0) return false;
+    if (me.quizCarryHeld === optionIdx) return true;
+    for (const o of others.values()) {
+      if (o && o.quizCarryHeld === optionIdx) return true;
+    }
+    return false;
+  }
+
+  /** สไปรต์ทับช่องโซนกลาง (ม่วง) อย่างน้อย 1 ช่อง */
+  function spriteOverlapsQuizCarryHubArea(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !sp) return false;
+    const hub = md.quizCarryHubArea;
+    if (!hub || !hub.length) return false;
+    const mw = md.width || 20, mh = md.height || 15;
+    const x0 = sp.x | 0, y0 = sp.y | 0, ww = sp.w | 0, hh = sp.h | 0;
+    for (let yy = y0; yy < y0 + hh; yy++) {
+      if (yy < 0 || yy >= mh) continue;
+      const row = hub[yy];
+      if (!row) continue;
+      for (let xx = x0; xx < x0 + ww; xx++) {
+        if (xx < 0 || xx >= mw) continue;
+        if (row[xx] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** ตัวเลือกหนึ่งข้อ — มีคนถือป้ายอยู่ได้แค่คนเดียว (หยิบซ้ำไม่ได้) */
+  function pickQuizCarryTargetOptionIndexAvoidingTaken(preferredIdx) {
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1) return null;
+    let p = preferredIdx | 0;
+    if (p < 0 || p >= n) p = 0;
+    if (!quizCarryOptionHeldByAnyone(p)) return p;
+    const avail = [];
+    for (let i = 0; i < n; i++) {
+      if (!quizCarryOptionHeldByAnyone(i)) avail.push(i);
+    }
+    if (!avail.length) return null;
+    return avail[Math.floor(Math.random() * avail.length)];
+  }
+
+  /**
+   * วาดป้ายมุมมน + ขอบเรือง + ข้อความ (รูปแบบเดียวกันทั้งแมปและติดตัว) — สีจาก carryChoicePlaqueThemes[choiceIndex] · รูปจาก plaqueExtra.imageUrl
+   * @param tether ถ้ามี วาดเส้นขาวจาก (x0,y0) ถึง (x1,y1) ก่อนป้าย
+   * @param plaqueExtra optional { imageUrl }
+   */
+  function drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, tether, plaqueExtra) {
+    const th = getEffectiveCarryChoicePlaqueThemeForChoice(choiceIndex);
+    const neon = th.borderMode === 'fixed' ? th.fixedBorder : quizCarryNeonColorForChoice(choiceIndex);
+    const fillCol = th.fillBg || 'rgba(12, 10, 20, 0.88)';
+    const textCol = th.textColor || '#f8f9ff';
+    const baseLw = Math.max(0.5, Math.min(8, Number(th.borderWidthPx)));
+    const imgUrl = plaqueExtra && plaqueExtra.imageUrl ? String(plaqueExtra.imageUrl) : '';
+    const elImg = plaqueExtra && plaqueExtra.imageElement;
+    const imgFromEl = (elImg && elImg.complete && elImg.naturalWidth > 0) ? elImg : null;
+    const img = !imgFromEl && imgUrl ? getQuizCarryChoiceImageCached(imgUrl) : null;
+    const drawPlaqueImg = imgFromEl || ((img && img.complete && img.naturalWidth > 0) ? img : null);
+    const rr = Math.max(6, Math.min(12, Math.min(w, h) * 0.2));
+    const simplePreviewPlaque = previewMode && editorEmbedReturn;
+    function pathBoard() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(signX, signY, w, h, rr);
+      else ctx.rect(signX, signY, w, h);
+    }
+    if (!simplePreviewPlaque) {
+      for (let g = 4; g >= 1; g--) {
+        ctx.strokeStyle = neon;
+        ctx.globalAlpha = 0.07 + g * 0.06;
+        ctx.lineWidth = baseLw + g * 3.2;
+        pathBoard();
+        ctx.stroke();
+      }
+    }
+    ctx.globalAlpha = 1;
+    ctx.fillStyle = fillCol;
+    pathBoard();
+    ctx.fill();
+    if (drawPlaqueImg) {
+      ctx.save();
+      pathBoard();
+      ctx.clip();
+      const padImg = Math.max(2, padY * 0.65);
+      const ix = signX + padImg;
+      const iy = signY + padImg;
+      const iw = Math.max(0, w - padImg * 2);
+      const ih = Math.max(0, h - padImg * 2);
+      if (iw > 0 && ih > 0) {
+        const nw = drawPlaqueImg.naturalWidth;
+        const nh = drawPlaqueImg.naturalHeight;
+        const ir = nw / nh;
+        let dw;
+        let dh;
+        if (iw / ih > ir) {
+          dh = ih;
+          dw = dh * ir;
+        } else {
+          dw = iw;
+          dh = dw / ir;
+        }
+        const dx = ix + (iw - dw) / 2;
+        const dy = iy + (ih - dh) / 2;
+        ctx.drawImage(drawPlaqueImg, 0, 0, nw, nh, dx, dy, dw, dh);
+      }
+      ctx.restore();
+    }
+    ctx.strokeStyle = neon;
+    if (simplePreviewPlaque) {
+      ctx.lineWidth = Math.max(1, baseLw * 0.85);
+      ctx.shadowBlur = 0;
+      pathBoard();
+      ctx.stroke();
+    } else {
+      ctx.lineWidth = baseLw;
+      ctx.shadowColor = neon;
+      ctx.shadowBlur = 14;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 8;
+      pathBoard();
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+    const attachX = signX + w / 2;
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'middle';
+    ctx.fillStyle = textCol;
+    const lh = lineH || 12;
+    if (!simplePreviewPlaque && lines && lines.length) {
+      ctx.shadowColor = 'rgba(0,0,0,0.55)';
+      ctx.shadowBlur = 3;
+    }
+    if (lines && lines.length) {
+      const n = lines.length;
+      const textBlockH = n * lh;
+      const y0 = signY + Math.max(padY, (h - textBlockH) / 2);
+      const firstLineCenterY = y0 + lh / 2;
+      for (let li = 0; li < n; li++) {
+        ctx.fillText(lines[li], attachX, firstLineCenterY + li * lh);
+      }
+    }
+    ctx.shadowBlur = 0;
+    if (tether && Number.isFinite(tether.x0) && Number.isFinite(tether.y0)) {
+      ctx.strokeStyle = 'rgba(255,255,255,0.95)';
+      ctx.lineWidth = 1.5;
+      ctx.lineCap = 'round';
+      ctx.lineJoin = 'round';
+      ctx.shadowBlur = 0;
+      ctx.beginPath();
+      ctx.moveTo(tether.x0, tether.y0);
+      ctx.lineTo(tether.x1, tether.y1);
+      ctx.stroke();
+    }
+  }
+
+  /**
+   * กล่องป้ายบนจอ (signX, signY, w, h) ให้ตรงกับ drawQuizCarryChoiceLabels สำหรับช่อง idx 0-based
+   */
+  function computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, idx0Based) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return null;
+    const q = quizCarryCurrent;
+    const choices = q.choices;
+    if (!choices || !choices.length || idx0Based < 0 || idx0Based >= choices.length) return null;
+    const i = idx0Based;
+    const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+    if (!b) return null;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    const choiceText = String(choices[i] || '').trim();
+    const imgUrl = getQuizCarryPlaqueImageUrlForIndex(q, i);
+    const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+    const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+      : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+    if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) return null;
+    const tileSpanX = (b.maxX - b.minX + 1);
+    const tileSpanY = (b.maxY - b.minY + 1);
+    const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+    const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+    const wx = b.cx * tileSize;
+    const wy = b.cy * tileSize;
+    const [sx, sy] = worldToScreen(wx, wy);
+    ctx.save();
+    let signX;
+    let signY;
+    let w;
+    let h;
+    if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+      const minW = minPlaqueW;
+      const minH = minPlaqueH;
+      signX = sx - minW / 2;
+      signY = sy - minH / 2;
+      w = minW;
+      h = minH;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    const line = choiceText;
+    const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+    ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+    let maxW = Math.max(56, tileSpanX * ts - 14);
+    const lineH = fontPx * 1.2;
+    let textLines = canvasWordWrapLines(ctx, line, maxW);
+    if (!textLines.length) textLines = [line];
+    if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+      const fp2 = Math.max(9, fontPx * 0.85);
+      ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      const lh2 = fp2 * 1.2;
+      maxW = Math.max(48, maxW - 4);
+      textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (textLines.length * lh2 > tileSpanY * ts - 8) {
+        textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+      const padX = 10;
+      const padY = 8;
+      w = Math.ceil(maxLineW + padX * 2);
+      h = Math.ceil(textLines.length * lh2 + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      signX = sx - w / 2;
+      signY = sy - h / 2;
+      ctx.restore();
+      return { signX, signY, w, h };
+    }
+    for (let ti = 0; ti < textLines.length; ti++) {
+      let s = textLines[ti];
+      if (ctx.measureText(s).width <= maxW) continue;
+      while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+      textLines[ti] = s + '…';
+    }
+    let maxLineW = 0;
+    for (let ti = 0; ti < textLines.length; ti++) {
+      const lw = ctx.measureText(textLines[ti]).width;
+      if (lw > maxLineW) maxLineW = lw;
+    }
+    const padX = 10;
+    const padY = 8;
+    w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+    h = Math.ceil(textLines.length * lineH + padY * 2);
+    if (imgUrl || plaqueExtra.imageElement) {
+      w = Math.max(w, minPlaqueW);
+      h = Math.max(h, minPlaqueH);
+    }
+    signX = sx - w / 2;
+    signY = sy - h / 2;
+    ctx.restore();
+    return { signX, signY, w, h };
+  }
+
+  /**
+   * ขอบเรืองรอบช่องตัวเลือก (carryEmbedCountdownHighlight + carryEmbedCountdownHighlightColor)
+   * ขนาดกรอบเท่าป้ายบนแมป (เดียวกับ drawQuizCarryChoiceLabels) ไม่ใช่ทั้ง cluster กริด
+   */
+  function drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zoom, timeMs) {
+    if (!isQuizCarry() || !mapData) return;
+    if (mapData.carryEmbedCountdownHighlight === false) return;
+    const optIdx = getQuizCarryLocalGrabbableOptionIndex();
+    if (optIdx == null) return;
+    const pr = computeQuizCarryChoicePlaqueScreenRect(ctx, worldToScreen, zoom, optIdx);
+    if (!pr || pr.w < 4 || pr.h < 4) return;
+    const rx = pr.signX;
+    const ry = pr.signY;
+    const rw = pr.w;
+    const rh = pr.h;
+    const rr = Math.max(6, Math.min(16, Math.min(rw, rh) * 0.14));
+    const colRaw = mapData.carryEmbedCountdownHighlightColor;
+    const strokeBase = typeof colRaw === 'string' && /^#[0-9a-fA-F]{6}$/.test(colRaw.trim()) ? colRaw.trim() : '#ffb44a';
+    const pulse = 0.55 + 0.45 * Math.sin((timeMs || 0) / 180);
+    ctx.save();
+    function pathRr() {
+      ctx.beginPath();
+      if (typeof ctx.roundRect === 'function') ctx.roundRect(rx, ry, rw, rh, rr);
+      else ctx.rect(rx, ry, rw, rh);
+    }
+    pathRr();
+    ctx.fillStyle = strokeBase;
+    ctx.globalAlpha = 0.12 * pulse;
+    ctx.fill();
+    for (let g = 6; g >= 1; g--) {
+      ctx.strokeStyle = strokeBase;
+      ctx.globalAlpha = (0.07 + g * 0.055) * pulse;
+      ctx.lineWidth = 2.5 + g * 4;
+      pathRr();
+      ctx.stroke();
+    }
+    ctx.globalAlpha = 0.98;
+    ctx.strokeStyle = strokeBase;
+    ctx.lineWidth = 4;
+    ctx.shadowColor = strokeBase;
+    ctx.shadowBlur = 22 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 12 * pulse;
+    pathRr();
+    ctx.stroke();
+    ctx.shadowBlur = 0;
+    ctx.globalAlpha = 1;
+    ctx.restore();
+  }
+
+  function drawQuizCarryChoiceLabels(ctx, worldToScreen, zoom) {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (!quizCarryOptionsPickableNow()) return;
+    const choices = quizCarryCurrent.choices;
+    if (!choices || !choices.length) return;
+    const maxSlots = choices.length;
+    const ts = tileSize * zoom;
+    const ps = quizCarryPlaqueMapScaleClampedPlay();
+    ctx.save();
+    for (let i = 0; i < Math.min(choices.length, maxSlots); i++) {
+      if (quizCarryOptionHeldByAnyone(i)) continue;
+      const b = getQuizCarryOptionClusterBounds(mapData, i + 1);
+      if (!b) continue;
+      const choiceText = String(choices[i] || '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, i);
+      const gridIdleEl = findQuizCarryGridIdleImgForChoiceIndex(i);
+      const plaqueExtra = imgUrl ? { imageUrl: imgUrl }
+        : (gridIdleEl && gridIdleEl.complete && gridIdleEl.naturalWidth ? { imageElement: gridIdleEl } : {});
+      if (!choiceText && !plaqueExtra.imageUrl && !plaqueExtra.imageElement) continue;
+      const tileSpanX = (b.maxX - b.minX + 1);
+      const tileSpanY = (b.maxY - b.minY + 1);
+      const minPlaqueW = Math.ceil(Math.max(72, tileSpanX * ts - 16) * ps);
+      const minPlaqueH = Math.ceil(Math.max(52, tileSpanY * ts - 12) * ps);
+      if (!choiceText && (plaqueExtra.imageUrl || plaqueExtra.imageElement)) {
+        const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+        const lineH = fontPx * 1.2;
+        const padY = 8;
+        const minW = minPlaqueW;
+        const minH = minPlaqueH;
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        drawQuizCarryNeonPlaque(ctx, sx - minW / 2, sy - minH / 2, minW, minH, [], lineH, padY, i, null, plaqueExtra);
+        continue;
+      }
+      const line = choiceText;
+      const fontPx = Math.max(10, Math.min(24, ts * 0.24 * ps));
+      ctx.font = '600 ' + fontPx + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+      let maxW = Math.max(56, tileSpanX * ts - 14);
+      const lineH = fontPx * 1.2;
+      let textLines = canvasWordWrapLines(ctx, line, maxW);
+      if (!textLines.length) textLines = [line];
+      if (textLines.length * lineH > tileSpanY * ts - 8 && textLines.length > 1) {
+        const fp2 = Math.max(9, fontPx * 0.85);
+        ctx.font = '600 ' + fp2 + 'px system-ui, "Segoe UI", "Kanit", sans-serif';
+        const lh2 = fp2 * 1.2;
+        maxW = Math.max(48, maxW - 4);
+        textLines = canvasWordWrapLines(ctx, line, maxW);
+        if (textLines.length * lh2 > tileSpanY * ts - 8) {
+          textLines = textLines.slice(0, Math.max(1, Math.floor((tileSpanY * ts - 8) / lh2)));
+        }
+        for (let ti = 0; ti < textLines.length; ti++) {
+          let s = textLines[ti];
+          if (ctx.measureText(s).width <= maxW) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+          textLines[ti] = s + '…';
+        }
+        const maxLineW = Math.max(...textLines.map((t) => ctx.measureText(t).width), 40);
+        const padX = 10;
+        const padY = 8;
+        let w = Math.ceil(maxLineW + padX * 2);
+        let h = Math.ceil(textLines.length * lh2 + padY * 2);
+        if (imgUrl || plaqueExtra.imageElement) {
+          w = Math.max(w, minPlaqueW);
+          h = Math.max(h, minPlaqueH);
+        }
+        const wx = b.cx * tileSize;
+        const wy = b.cy * tileSize;
+        const [sx, sy] = worldToScreen(wx, wy);
+        const signX = sx - w / 2;
+        const signY = sy - h / 2;
+        drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lh2, padY, i, null, plaqueExtra);
+        continue;
+      }
+      for (let ti = 0; ti < textLines.length; ti++) {
+        let s = textLines[ti];
+        if (ctx.measureText(s).width <= maxW) continue;
+        while (s.length > 2 && ctx.measureText(s + '…').width > maxW) s = s.slice(0, -1);
+        textLines[ti] = s + '…';
+      }
+      let maxLineW = 0;
+      for (let ti = 0; ti < textLines.length; ti++) {
+        const lw = ctx.measureText(textLines[ti]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const padX = 10;
+      const padY = 8;
+      let w = Math.ceil(Math.max(maxLineW, 52) + padX * 2);
+      let h = Math.ceil(textLines.length * lineH + padY * 2);
+      if (imgUrl || plaqueExtra.imageElement) {
+        w = Math.max(w, minPlaqueW);
+        h = Math.max(h, minPlaqueH);
+      }
+      const wx = b.cx * tileSize;
+      const wy = b.cy * tileSize;
+      const [sx, sy] = worldToScreen(wx, wy);
+      const signX = sx - w / 2;
+      const signY = sy - h / 2;
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, textLines, lineH, padY, i, null, plaqueExtra);
+    }
+    ctx.restore();
+  }
+
+  function quizCarryHubCellPlay(md, tx, ty) {
+    const g = md && md.quizCarryHubArea;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryInteractiveCellPlay(md, tx, ty) {
+    const g = md && md.interactive;
+    return !!(g && g[ty] && g[ty][tx] === 1);
+  }
+
+  function quizCarryMapHasAnswerInteractive(md) {
+    if (!md || !md.interactive || !md.interactive.length) return false;
+    const h = md.height || 15, w = md.width || 20;
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  /** @returns {number|null} index ใน choices จากช่องหมายเลข 1..N บนแมป */
+  function quizCarryOptionIndexAtPlay(md, tx, ty) {
+    const g = md && md.quizCarryOptionArea;
+    if (!g || !g[ty]) return null;
+    const v = g[ty][tx];
+    if (v < 1 || v > QUIZ_CARRY_MAX_OPTION_SLOTS) return null;
+    const idx = v - 1;
+    const n = quizCarryCurrent && quizCarryCurrent.choices ? quizCarryCurrent.choices.length : 0;
+    if (n < 1 || idx >= n) return null;
+    return idx;
+  }
+
+  /** ร่างตัวละครทับช่องโซนกลาง (ม่วง) — ใช้บล็อกการเดิน */
+  function quizCarryFootprintOverlapsHub(px, py) {
+    if (!mapData || !isQuizCarry()) return false;
+    const md = mapData;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  /** ยืนข้างนอกแต่ชิดโซนกลาง — ใช้ให้กด F ส่งคำตอบได้โดยไม่ต้องย่ำบนม่วง */
+  function quizCarryFootprintAdjacentToHub(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryHubCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryHubCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtHub(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsHub(px, py) || quizCarryFootprintAdjacentToHub(md, px, py);
+  }
+
+  function quizCarryFootprintOverlapsInteractive(md, px, py) {
+    if (!md) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) return true;
+    }
+    return false;
+  }
+
+  function quizCarryFootprintAdjacentToInteractive(md, px, py) {
+    if (!md) return false;
+    const dirs = [[1, 0], [-1, 0], [0, 1], [0, -1]];
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (quizCarryInteractiveCellPlay(md, tx, ty)) continue;
+      for (let di = 0; di < dirs.length; di++) {
+        const nx = tx + dirs[di][0], ny = ty + dirs[di][1];
+        if (quizCarryInteractiveCellPlay(md, nx, ny)) return true;
+      }
+    }
+    return false;
+  }
+
+  function quizCarryCanSubmitAtInteractiveZone(md, px, py) {
+    if (!md) return false;
+    return quizCarryFootprintOverlapsInteractive(md, px, py) || quizCarryFootprintAdjacentToInteractive(md, px, py);
+  }
+
+  /** ส่งคำตอบ: ถ้ามีโซน interactive (เขียว) ในแมป ใช้โซนนั้น — ไม่มี fallback ชิดโซนกลาง */
+  function quizCarryCanSubmitAnswerAt(md, px, py) {
+    if (!md) return false;
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      return quizCarryCanSubmitAtInteractiveZone(md, px, py);
+    }
+    return quizCarryCanSubmitAtHub(md, px, py);
+  }
+
+  /** ข้อความใน HUD / โซนคำถาม — ไม่รวมตัวเลือก (แสดงบนแผนที่ตามจุดสี) */
+  function formatQuizCarryQuestionHud(q) {
+    if (!q) return '';
+    return String(q.text || q.question || q.prompt || q.title || '').trim();
+  }
+
+  function quizCarryRestoreEmbedPhaseLabel() {
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl || !mapData) return;
+    phaseEl.textContent = quizCarryMapHasAnswerInteractive(mapData)
+      ? 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งที่โซน interactive (เขียว) — เล่นพร้อมกันได้'
+      : 'กด F หรือปุ่ม GRAB หยิบบนโซนตัวเลือก · ส่งเมื่อชิดโซนกลาง (ม่วงเป็นกำแพง) — เล่นพร้อมกันได้';
+  }
+
+  function isQuizCarryEmbedCountdownBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now());
+  }
+
+  function isQuizCarryEmbedLobbyBlockingMovement() {
+    return !!(previewMode && editorEmbedReturn && isQuizCarry() && quizCarryPregameActive);
+  }
+
+  function quizCarryPregameHumanIds() {
+    const ids = [];
+    if (myId != null && !isPreviewBotId(myId)) ids.push(String(myId));
+    others.forEach((_, id) => {
+      if (!isPreviewBotId(id)) ids.push(String(id));
+    });
+    return ids;
+  }
+
+  function quizCarryPregameBotCount() {
+    let n = 0;
+    others.forEach((_, id) => {
+      if (isPreviewBotId(id)) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (quizCarryLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function quizCarryPregameTotalPlayers() {
+    return quizCarryPregameHumanIds().length + quizCarryPregameBotCount();
+  }
+
+  function isMePlayHost() {
+    if (myId == null) return false;
+    if (playHostId == null) return true;
+    return String(playHostId) === String(myId);
+  }
+
+  function hideQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function showQuizCarryPregameOverlay() {
+    const ov = document.getElementById('quiz-carry-pregame-overlay');
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    updateQuizCarryPregameHud();
+  }
+
+  function quizCarrySyncGuestReadyIfNeeded() {
+    if (!quizCarryPregameActive || myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (quizCarryLobbyReadyMap[sid]) return;
+    quizCarryLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-ready', { ready: true });
+  }
+
+  function updateQuizCarryPregameHud() {
+    if (!quizCarryPregameActive) return;
+    const st = document.getElementById('quiz-carry-pregame-status');
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    const primaryImg = document.getElementById('quiz-carry-pregame-primary-img');
+    const num = quizCarryPregameReadyNumerator();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    if (st) {
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humans = quizCarryPregameHumanIds();
+    const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+    const meReady = !!(myId && quizCarryLobbyReadyMap[String(myId)]);
+    if (primaryImg) {
+      primaryImg.src = humansReady ? '/Game/img/quiz-carry/btn-start.png' : '/Game/img/quiz-carry/btn-ready.png';
+      primaryImg.alt = humansReady ? 'START' : 'READY';
+    }
+    if (primary) {
+      primary.classList.toggle('is-start-phase', humansReady);
+      primary.classList.toggle('is-read-only', !isMePlayHost());
+      primary.classList.toggle('is-pressed', isMePlayHost() && meReady && !humansReady);
+      primary.disabled = !isMePlayHost();
+      primary.setAttribute('aria-pressed', humansReady ? 'false' : (meReady ? 'true' : 'false'));
+      primary.title = isMePlayHost()
+        ? (humansReady ? 'START' : (meReady ? 'ยกเลิก READY' : 'READY'))
+        : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+    }
+  }
+
+  function beginQuizCarryEmbedPregame() {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    quizCarryPregameActive = true;
+    quizCarryLobbyReadyMap = {};
+    quizCarryPregameHumanIds().forEach((id) => { quizCarryLobbyReadyMap[id] = false; });
+    showQuizCarryPregameOverlay();
+    if (socket && socket.connected) socket.emit('quiz-carry-lobby-sync-request');
+    quizCarrySyncGuestReadyIfNeeded();
+    updateQuizCarryPregameHud();
+  }
+
+  function endQuizCarryEmbedPregameAndStart() {
+    if (!quizCarryPregameActive) return;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPickNextQuestion();
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+  }
+
+  function quizCarryOptionsPickableNow() {
+    if (!isQuizCarry() || !quizCarryCurrent) return true;
+    if (!quizCarryOptionRevealAt || quizCarryOptionRevealAt <= 0) return true;
+    return Date.now() >= quizCarryOptionRevealAt;
+  }
+
+  function quizCarryApplyPhaseTimersForCurrentQuestion() {
+    if (!quizCarryCurrent) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      return;
+    }
+    const readMs = Math.max(0, Math.floor(Number(quizCarryCarryTimingMs.carryReadMs)) || 0);
+    const ansMs = Math.max(1000, Math.floor(Number(quizCarryCarryTimingMs.carryAnswerMs)) || 5000);
+    const t0 = Date.now();
+    if (readMs <= 0) {
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = t0 + ansMs;
+    } else {
+      quizCarryOptionRevealAt = t0 + readMs;
+      quizCarryAnswerCloseAt = quizCarryOptionRevealAt + ansMs;
+    }
+  }
+
+  function updateQuizCarryCarryPhaseHud() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !quizCarryCurrent) return;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (!phaseEl) return;
+    const now = Date.now();
+    if (quizCarryOptionRevealAt > 0 && now < quizCarryOptionRevealAt) {
+      const remain = Math.max(0, Math.ceil((quizCarryOptionRevealAt - now) / 1000));
+      phaseEl.textContent = 'อ่านคำถาม — ตัวเลือกขึ้นใน ' + remain + ' วิ';
+      return;
+    }
+    if (quizCarryAnswerCloseAt > now) {
+      const remain = Math.max(0, Math.ceil((quizCarryAnswerCloseAt - now) / 1000));
+      phaseEl.textContent = 'หยิบ/ส่งคำตอบ — เหลือ ' + remain + ' วิ';
+      return;
+    }
+    quizCarryRestoreEmbedPhaseLabel();
+  }
+
+  function tickQuizCarryRoundTimers() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return;
+    if (quizCarryEmbedCountdownEndAt > Date.now()) return;
+    if (quizCarryEmbedPendingQuestion) return;
+    if (!quizCarryAnswerCloseAt || quizCarryAnswerCloseAt <= 0) return;
+    if (Date.now() < quizCarryAnswerCloseAt) return;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryOptionRevealAt = 0;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    quizCarryAfterRoundResolved();
+  }
+
+  /** นับ 3–2–1: ไม่โชว์ข้อความคำถามใน overlay — มีแค่เลข */
+  function hideQuizCarryEmbedCountdownQuestionChrome() {
+    const cq = document.getElementById('quiz-carry-embed-countdown-q');
+    const ck = document.getElementById('quiz-carry-embed-countdown-kicker');
+    if (cq) {
+      cq.textContent = '';
+      cq.style.display = 'none';
+    }
+    if (ck) ck.style.display = 'none';
+  }
+
+  function hideQuizCarryEmbedCountdownOverlay() {
+    resetQuizCarryEmbedCountdownLayoutDom();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+    hideQuizCarryEmbedCountdownQuestionChrome();
+  }
+
+  function tickQuizCarryEmbedCountdown() {
+    if (!previewMode || !editorEmbedReturn || !isQuizCarry()) return;
+    if (!quizCarryEmbedPendingQuestion || quizCarryEmbedCountdownEndAt <= 0) return;
+    const now = Date.now();
+    const ov = document.getElementById('quiz-carry-embed-countdown');
+    const numEl = document.getElementById('quiz-carry-embed-countdown-num');
+    if (now >= quizCarryEmbedCountdownEndAt) {
+      const pq = quizCarryEmbedPendingQuestion;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      if (!pq) return;
+      quizCarryCurrent = pq;
+      preloadQuizCarryChoiceImages(pq);
+      playQuizText = formatQuizCarryQuestionHud(pq);
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      quizCarryRestoreEmbedPhaseLabel();
+      others.forEach((o) => {
+        if (!o) return;
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      syncQuizCarryEmbedQuestionStrip();
+      quizCarryApplyPhaseTimersForCurrentQuestion();
+      return;
+    }
+    const elapsed = now - quizCarryEmbedCountdownStartAt;
+    const n = 3 - Math.min(2, Math.floor(elapsed / 1000));
+    if (numEl) numEl.textContent = String(Math.max(1, Math.min(3, n)));
+    if (ov) {
+      ov.classList.remove('is-hidden');
+      ov.setAttribute('aria-hidden', 'false');
+    }
+    syncQuizCarryEmbedCountdownLayout();
+    hideQuizCarryEmbedCountdownQuestionChrome();
+    syncQuizCarryEmbedQuestionStrip();
+  }
+
+  function quizCarryPickNextQuestion() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!quizCarryPool.length) {
+      quizCarryCurrent = null;
+      quizCarryEmbedPendingQuestion = null;
+      quizCarryEmbedCountdownEndAt = 0;
+      quizCarryEmbedCountdownStartAt = 0;
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      hideQuizCarryEmbedCountdownOverlay();
+      playQuizText = 'ไม่มีคำถาม — ใส่ quizQuestions ในแมป (choices + correctIndex) หรือตั้งใน Admin';
+      return;
+    }
+    let q;
+    let guard = 0;
+    do {
+      q = quizCarryPool[Math.floor(Math.random() * quizCarryPool.length)];
+      guard++;
+    } while (guard < 12 && quizCarryPool.length > 1 && quizCarryCurrent && q && q.text === quizCarryCurrent.text);
+    if (previewMode && editorEmbedReturn) {
+      quizCarryEmbedPendingQuestion = q;
+      preloadQuizCarryChoiceImages(q);
+      quizCarryEmbedCountdownStartAt = Date.now();
+      quizCarryEmbedCountdownEndAt = quizCarryEmbedCountdownStartAt + 3000;
+      quizCarryCurrent = null;
+      playQuizText = '';
+      clearQuizMapQuestionCarryFeedback();
+      quizCarryOptionRevealAt = 0;
+      quizCarryAnswerCloseAt = 0;
+      me.quizCarryHeld = null;
+      others.forEach((o) => {
+        if (!o) return;
+        o.quizCarryHeld = null;
+        o.botPath = [];
+        o.botPathStuckTicks = 0;
+        /* ต้องใช้ performance.now() ช่วงกับ stepQuizCarryPreviewBots — ห้ามใช้ Date.now() epoch ไม่งั้นบอทค้าง pathfind ตลอด */
+        o.botQuizCarryPathfindAfter = 0;
+      });
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = '…';
+      const phaseEl = document.getElementById('quiz-game-phase-label');
+      if (phaseEl) phaseEl.textContent = 'รอเริ่มคำถาม — นับถอยหลัง 3 · 2 · 1';
+      tickQuizCarryEmbedCountdown();
+      syncQuizCarryEmbedQuestionStrip();
+      return;
+    }
+    quizCarryCurrent = q;
+    preloadQuizCarryChoiceImages(q);
+    playQuizText = formatQuizCarryQuestionHud(q);
+    clearQuizMapQuestionCarryFeedback();
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+    });
+    quizCarryApplyPhaseTimersForCurrentQuestion();
+  }
+
+  /** หลังจบข้อหนึ่งข้อ (ถูกหรือหมดเวลา): พรีวิวนับรอบจนครบ carrySessionLength แล้วจบเซสชัน */
+  function quizCarryAfterRoundResolved() {
+    if (!isQuizCarry()) return;
+    if (isDetectiveMinigamePlay()) {
+      finishDetectiveMinigameAndReturnLobby();
+      return;
+    }
+    if (!previewMode) {
+      quizCarryPickNextQuestion();
+      return;
+    }
+    quizCarryRoundsCompleted++;
+    const lim = quizCarrySessionLength;
+    if (lim > 0 && quizCarryRoundsCompleted >= lim) {
+      showQuizCarrySessionCompleteOverlay();
+      return;
+    }
+    quizCarryPickNextQuestion();
+  }
+
+  function playQuizCarryAvatarUrlForMission(characterId) {
+    if (!characterId) return '';
+    return BASE + '/img/characters/' + encodeURIComponent(String(characterId)) + '_down.png';
+  }
+
+  /** อวาตาร์สรุปภารกิจ / DOM — ใช้สี gen เดียวกับในเกม (เลเยอร์ + tint) */
+  function applyQuizCarryRankAvatarTint(imgEl, characterId, peerId) {
+    if (!imgEl || !characterId) return;
+    let attempts = 0;
+    const fallbackUrl = playQuizCarryAvatarUrlForMission(characterId);
+    const tick = () => {
+      attempts++;
+      const nowT = Date.now();
+      const rawImg = getCharacterFrame(characterId, 'down', nowT, false) || getCharacterImg(characterId, 'down');
+      if (!rawImg) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      if ((!rawImg.complete || !rawImg.naturalWidth) && attempts < 28) {
+        if (fallbackUrl) imgEl.src = fallbackUrl + '?p=' + String(attempts);
+        setTimeout(tick, 90);
+        return;
+      }
+      if (!rawImg.naturalWidth) {
+        if (fallbackUrl) imgEl.src = fallbackUrl;
+        return;
+      }
+      const tint = playTintFromPeerId(peerId != null ? String(peerId) : String(characterId));
+      const out = getPlayTintedAvatarSource(rawImg, characterId, 'down', nowT, false, tint);
+      if (out && out.tagName === 'CANVAS' && out.width > 0) {
+        try {
+          imgEl.src = out.toDataURL('image/png');
+          return;
+        } catch (e) { /* ต่อไปลอง walk หรือ URL */ }
+      }
+      if (out && out.src && out !== rawImg) {
+        imgEl.src = out.src;
+        return;
+      }
+      if (attempts < 28 && playCharLayerDiscoveryPending(characterId)) {
+        setTimeout(tick, 120);
+        return;
+      }
+      imgEl.src = rawImg.src || fallbackUrl;
+    };
+    tick();
+  }
+
+  /** เกรดจากค่าเฉลี่ยคะแนนทีม (0–100 หลังปัด) — A 80–100, B 60–79, C 0–59 */
+  function quizCarryGradeFromTeamAverage(avgRounded) {
+    if (avgRounded >= 80) return 'A';
+    if (avgRounded >= 60) return 'B';
+    return 'C';
+  }
+
+  function quizCarryRollCardRewardForGrade(grade) {
+    const u = Math.random() * 100;
+    if (grade === 'A') {
+      if (u < 30) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 80) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (u < 20) return { th: 'การ์ดชี้คนร้าย', en: 'Culprit hint card' };
+      if (u < 50) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'C') {
+      if (u < 20) return { th: 'การ์ด Rare', en: 'Rare card' };
+      return { th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    return null;
+  }
+
+  function quizCarryBuildMissionRankList() {
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+        characterId: me.characterId || getPlayCharacterId(),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+        characterId: o.characterId || null,
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    return ranks.slice(0, 5);
+  }
+
+  function cancelEmbedPreviewLobbyReturnTimer() {
+    if (embedPreviewLobbyReturnTimer != null) {
+      clearTimeout(embedPreviewLobbyReturnTimer);
+      embedPreviewLobbyReturnTimer = null;
+    }
+  }
+
+  function cancelQuizCarryResultEndAfterTimeup() {
+    if (quizCarryResultEndTimer != null) {
+      clearTimeout(quizCarryResultEndTimer);
+      quizCarryResultEndTimer = null;
+    }
+    cancelEmbedPreviewLobbyReturnTimer();
+  }
+
+  /** หลังภาพ result-complete / gameover (editor embed + preview): รอ 5s แล้วไปล็อบบี้ห้องพรีวิว */
+  function scheduleEmbedPreviewReturnToLobbyAfterResultEnd() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    if (!(previewMode && editorEmbedReturn)) return;
+    embedPreviewLobbyReturnTimer = setTimeout(function () {
+      embedPreviewLobbyReturnTimer = null;
+      window.location.href = buildRoomLobbyReturnHref();
+    }, 5000);
+  }
+
+  /** มีผู้เล่นอย่างน้อยหนึ่งคนได้คะแนน > 0 (= ส่งคำตอบถูกที่ฮับอย่างน้อย 1 ครั้ง; คะแนนต่อข้อคงที่ QUIZ_CARRY_POINTS_PER_CORRECT) */
+  function quizCarryAnyPlayerHasCorrectAnswer() {
+    if (!playLiveQuizScores || typeof playLiveQuizScores !== 'object') return false;
+    const keys = Object.keys(playLiveQuizScores);
+    for (let i = 0; i < keys.length; i++) {
+      if (Math.max(0, Number(playLiveQuizScores[keys[i]]) || 0) > 0) return true;
+    }
+    return false;
+  }
+
+  function hideQuizCarryResultEndLayer() {
+    cancelEmbedPreviewLobbyReturnTimer();
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  function showQuizCarryResultEndLayer(useComplete) {
+    const el = document.getElementById('quiz-carry-result-end-layer');
+    const img = document.getElementById('quiz-carry-result-end-img');
+    if (!el || !img) return;
+    const fname = useComplete ? 'result-complete.png' : 'result-gameover.png';
+    img.src = BASE + '/img/quiz-carry/' + fname + '?v=' + String(Date.now());
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+  }
+
+  /** Embed editor: หลัง timeup บนโต๊ะ — รอ 5 วิ แล้วโชว์ result-complete / result-gameover (ใช้ร่วม quiz_carry + crown) */
+  function scheduleEmbedDeskResultAfterDelay(okResolver) {
+    cancelQuizCarryResultEndAfterTimeup();
+    hideQuizCarryResultEndLayer();
+    const resolve = typeof okResolver === 'function' ? okResolver : function () { return !!okResolver; };
+    quizCarryResultEndTimer = setTimeout(function () {
+      quizCarryResultEndTimer = null;
+      let anyOk = false;
+      try {
+        anyOk = !!resolve();
+      } catch (e) {
+        anyOk = false;
+      }
+      hideQuizCarryTimeupOnDeskLayer();
+      showQuizCarryResultEndLayer(anyOk);
+      scheduleEmbedPreviewReturnToLobbyAfterResultEnd();
+    }, 5000);
+  }
+
+  function hideQuizCarryTimeupOnDeskLayer() {
+    cancelQuizCarryResultEndAfterTimeup();
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const anchor = el.querySelector('.qc-timeup-desk-anchor') || el.querySelector('.qc-timeup-desk-inner');
+    if (anchor) {
+      anchor.style.left = '';
+      anchor.style.top = '';
+      anchor.style.width = '';
+      anchor.style.height = '';
+    }
+    el.classList.add('is-hidden');
+    el.setAttribute('aria-hidden', 'true');
+  }
+
+  /** หลังกดรับหลักฐาน (embed preview) — แสดง timeup กลางแคนวาส (Jumper mnptfts2 = img/Jumper/result-timeup.png) แยกจากป๊อปสรุปคะแนน
+   *  @param {function():boolean} [embedResultOkFn] — ถ้าไม่ส่ง = ใช้คะแนน quiz_carry (คนตอบถูก); ส่งเมื่อ crown เพื่อเลือก complete vs gameover */
+  function showQuizCarryTimeupOnDeskLayer(embedResultOkFn) {
+    const el = document.getElementById('quiz-carry-timeup-desk-layer');
+    if (!el) return;
+    const img = document.getElementById('quiz-carry-timeup-txt-img');
+    if (img) {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+        };
+        img.src = jumperAssetUrl('result-timeup.png') + '?v=' + String(Date.now());
+      } else {
+        img.onerror = null;
+        img.src = BASE + '/img/quiz-carry/timeup-txt.png?v=' + String(Date.now());
+      }
+    }
+    el.classList.remove('is-hidden');
+    el.setAttribute('aria-hidden', 'false');
+    try {
+      syncQuizCarryTimeupDeskLayerPosition();
+    } catch (e) { /* ignore */ }
+    if (previewMode && editorEmbedReturn) {
+      scheduleEmbedDeskResultAfterDelay(embedResultOkFn || quizCarryAnyPlayerHasCorrectAnswer);
+    }
+  }
+
+  function showQuizCarryMissionSummaryOverlay(opts) {
+    opts = opts || {};
+    const forceF = !!opts.forceGradeF;
+    const overlay = document.getElementById('quiz-carry-mission-overlay');
+    if (!overlay) return;
+    hideQuizCarryTimeupOnDeskLayer();
+    const ranks = quizCarryBuildMissionRankList();
+    const parts = ranks.map((r) => Math.max(0, Number(r.score) || 0));
+    const total = parts.reduce((a, b) => a + b, 0);
+    const n = ranks.length;
+    const avgForGrade = n ? Math.min(100, Math.max(0, Math.round(total / n))) : 0;
+    const grade = forceF ? 'F' : quizCarryGradeFromTeamAverage(avgForGrade);
+    const reward = grade === 'F' ? null : quizCarryRollCardRewardForGrade(grade);
+
+    const rowEl = document.getElementById('qc-mission-rank-row');
+    const totalEl = document.getElementById('qc-mission-total-line');
+    const gradeEl = document.getElementById('qc-mission-grade');
+    const cardTextEl = document.getElementById('qc-mission-card-text');
+    const checkEl = document.getElementById('qc-mission-check');
+    const successTxt = document.getElementById('qc-mission-success-txt');
+    const rankTagLabels = ['[1st]', '[2nd]', '[3rd]', '[4th]', '[5th]'];
+    if (rowEl) {
+      rowEl.innerHTML = '';
+      ranks.forEach((r, idx) => {
+        const rank = idx + 1;
+        const cell = document.createElement('div');
+        cell.className = 'qc-mission-rank-cell';
+        const tag = document.createElement('div');
+        tag.className = 'qc-mission-rank-tag';
+        tag.textContent = rankTagLabels[rank - 1] || ('[' + rank + ']');
+        const frame = document.createElement('div');
+        frame.className = 'qc-mission-rank-frame';
+        const img = document.createElement('img');
+        img.className = 'qc-mission-rank-avatar';
+        img.alt = '';
+        applyQuizCarryRankAvatarTint(img, r.characterId, r.id);
+        img.onerror = function () {
+          this.onerror = null;
+          this.src = 'data:image/svg+xml,' + encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="64" height="64"><rect fill="%2318223b" width="64" height="64"/><text x="32" y="36" fill="%237aa2f7" font-size="10" text-anchor="middle">?</text></svg>');
+        };
+        frame.appendChild(img);
+        const nick = document.createElement('div');
+        nick.className = 'qc-mission-rank-nick';
+        nick.textContent = r.nickname;
+        nick.title = r.nickname;
+        const sc = document.createElement('div');
+        sc.className = 'qc-mission-rank-score';
+        sc.textContent = String(r.score);
+        cell.appendChild(tag);
+        cell.appendChild(frame);
+        cell.appendChild(nick);
+        cell.appendChild(sc);
+        rowEl.appendChild(cell);
+      });
+    }
+    if (totalEl) {
+      totalEl.textContent = '';
+      if (!n) {
+        totalEl.textContent = '—';
+      } else {
+        const lab = document.createElement('span');
+        lab.textContent = 'คะแนนรวม ';
+        const nums = document.createElement('span');
+        nums.className = 'qc-mission-total-nums';
+        nums.textContent = '(' + parts.join('+') + ') = ' + total;
+        const tail = document.createElement('span');
+        tail.textContent = ' · เฉลี่ยทีม ' + avgForGrade + '/100';
+        totalEl.appendChild(lab);
+        totalEl.appendChild(nums);
+        totalEl.appendChild(tail);
+      }
+    }
+    if (gradeEl) {
+      gradeEl.textContent = grade;
+      gradeEl.className = 'qc-mission-grade qc-mission-grade--' + String(grade).toLowerCase();
+    }
+    const okMission = grade !== 'F';
+    if (checkEl) checkEl.style.display = okMission ? '' : 'none';
+    if (successTxt) {
+      successTxt.style.display = okMission ? '' : 'none';
+      if (okMission) successTxt.textContent = 'ภารกิจสำเร็จ';
+    }
+    if (cardTextEl) {
+      cardTextEl.textContent = '';
+      if (grade === 'F') {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque qc-mission-reward-plaque--muted';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = 'ไม่ได้รับการ์ด';
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = 'เกรด F';
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      } else if (reward) {
+        const pl = document.createElement('div');
+        pl.className = 'qc-mission-reward-plaque';
+        const t = document.createElement('div');
+        t.className = 'qc-mission-reward-plaque-title';
+        t.textContent = reward.th;
+        const s = document.createElement('div');
+        s.className = 'qc-mission-reward-plaque-sub';
+        s.textContent = reward.en;
+        pl.appendChild(t);
+        pl.appendChild(s);
+        cardTextEl.appendChild(pl);
+      }
+    }
+    overlay.classList.remove('is-hidden');
+    const btn = document.getElementById('btn-quiz-carry-mission-done');
+    if (btn) {
+      btn.onclick = function () {
+        overlay.classList.add('is-hidden');
+        if (previewMode && editorEmbedReturn) {
+          showQuizCarryTimeupOnDeskLayer();
+        } else {
+          window.location.href = buildRoomLobbyReturnHref();
+        }
+      };
+    }
+  }
+
+  function showQuizCarrySessionCompleteOverlay() {
+    if (quizCarrySessionEnded) return;
+    quizCarrySessionEnded = true;
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    hideQuizCarryEmbedCountdownOverlay();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+    playQuizText = 'ครบชุดคำถามแล้ว';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = playQuizText;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'ครบ ' + String(quizCarryRoundsCompleted) + ' ข้อ';
+    const missionOv = document.getElementById('quiz-carry-mission-overlay');
+    if (missionOv && quizCarryUseMissionSummaryOverlay) {
+      showQuizCarryMissionSummaryOverlay({
+        forceGradeF: !!(playQuizPlayerLocal && playQuizPlayerLocal.eliminated),
+      });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'เกมจบ · Game over';
+    msgEl.textContent = 'ครบจำนวนคำถามที่ตั้งไว้ (' + String(quizCarryRoundsCompleted) + ' ข้อ) · Quiz carry session finished';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({
+        id: myId,
+        nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ',
+        score: Math.max(0, Number(playLiveQuizScores[myId]) || 0),
+      });
+    }
+    others.forEach((o, id) => {
+      if (!o) return;
+      ranks.push({
+        id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : String(id),
+        score: Math.max(0, Number(playLiveQuizScores[id]) || 0),
+      });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+  }
+
+  /** Toast กลางบน (หยิบ / ถูก / ผิด / คำใบ้) — ปิดการแสดงตามคำขอ UX */
+  function showQuizCarryToast(msg, ok) {
+    if (typeof window.__quizCarryToastT === 'number') clearTimeout(window.__quizCarryToastT);
+    window.__quizCarryToastT = null;
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.classList.add('is-hidden');
+    el.className = 'play-quiz-feedback';
+    el.textContent = '';
+  }
+
+  /**
+   * หยิบ/ส่งคำตอบ — ต้องกด F (fromKey) สำหรับผู้เล่น · บอท preview เรียกแบบ silent เมื่อหยุดเดินแล้ว
+   * @returns {boolean} ทำ action สำเร็จหรือไม่
+   */
+  function tryQuizCarryInteractionForPlayer(actorId, ox, oy, opts) {
+    opts = opts || {};
+    if (quizCarryPregameActive) return false;
+    if (quizCarrySessionEnded) return false;
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(ox, oy);
+    const ent = actorId === myId ? me : others.get(actorId);
+    if (!ent) return false;
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    const canSubmitAnswer = quizCarryCanSubmitAnswerAt(md, ox, oy);
+    const correct = quizCarryCurrent.correctIndex;
+    let held = ent.quizCarryHeld;
+    if (held != null && canSubmitAnswer) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      ent.quizCarryHeld = null;
+      const ok = held === correct;
+      if (ok) {
+        playLiveQuizScores[actorId] = (playLiveQuizScores[actorId] || 0) + QUIZ_CARRY_POINTS_PER_CORRECT;
+        const lim = previewMode && isQuizCarry() ? quizCarrySessionLength : 0;
+        const willEnd = lim > 0 && (quizCarryRoundsCompleted + 1) >= lim;
+        const showMapFb = !opts.silent && actorId === myId;
+        if (showMapFb) showQuizMapQuestionCarryFeedback(true);
+        if (!opts.silent) {
+          const pts = QUIZ_CARRY_POINTS_PER_CORRECT;
+          showQuizCarryToast(willEnd ? ('ถูกต้อง +' + pts + ' แต้ม — ครบชุดคำถาม') : ('ถูกต้อง +' + pts + ' แต้ม — สุ่มคำถามใหม่'), true);
+        }
+        me.quizCarryHeld = null;
+        others.forEach((o) => { if (o) o.quizCarryHeld = null; });
+        const afterOk = () => { quizCarryAfterRoundResolved(); };
+        if (showMapFb) {
+          window.setTimeout(afterOk, 560);
+        } else {
+          afterOk();
+        }
+      } else {
+        if (!opts.silent && actorId === myId) {
+          showQuizMapQuestionCarryFeedback(false);
+        }
+        if (!opts.silent) {
+          showQuizCarryToast('ผิด — คืนป้ายที่โซนตัวเลือกแล้ว กด F หยิบใหม่ได้', false);
+        }
+      }
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      return true;
+    }
+    if (held == null && pickupIdx != null) {
+      if (!quizCarryOptionsPickableNow()) return false;
+      if (quizCarryOptionHeldByAnyone(pickupIdx)) {
+        if (opts.fromKey && actorId === myId && !opts.silent) {
+          showQuizCarryToast('ตัวเลือกนี้มีคนถืออยู่แล้ว — เลือกข้ออื่น', false);
+        }
+        return false;
+      }
+      ent.quizCarryHeld = pickupIdx;
+      const label = (quizCarryCurrent.choices && quizCarryCurrent.choices[pickupIdx]) || String(pickupIdx);
+      if (!opts.silent) {
+        showQuizCarryToast('หยิบ: ' + label, true);
+      }
+      return true;
+    }
+    if (opts.fromKey && actorId === myId && !opts.silent) {
+      const t = Date.now();
+      if (t - (me.quizCarryHintT || 0) > 2200) {
+        me.quizCarryHintT = t;
+        if (held != null && !canSubmitAnswer) {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ถือป้ายอยู่ — ยืนที่โซน interactive (เขียว) หรือชิดขอบแล้วกด F เพื่อส่ง'
+            : 'ถือป้ายอยู่ — ยืนชิดโซนกลาง (ม่วง) แล้วกด F เพื่อส่ง', false);
+        } else {
+          showQuizCarryToast(quizCarryMapHasAnswerInteractive(md)
+            ? 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนโซนเขียว (interactive) แล้วกด F ส่งเมื่อถือป้าย'
+            : 'ยืนโซนตัวเลือกแล้วกด F หยิบ · ยืนชิดโซนกลางแล้วกด F ส่งเมื่อถือป้าย', false);
+        }
+      }
+    }
+    return false;
+  }
+
+  function quizCarryGrabCoreGatesOk() {
+    if (!isQuizCarry() || !mapData || !quizCarryCurrent) return false;
+    if (quizCarryPregameActive || quizCarrySessionEnded) return false;
+    if (myId == null) return false;
+    if (isQuizCarryEmbedCountdownBlockingMovement()) return false;
+    if (!quizCarryOptionsPickableNow()) return false;
+    return true;
+  }
+
+  /** ดัชนีตัวเลือก 0-based ที่ผู้เล่นท้องถิ่นยืนอยู่และหยิบได้ — ไม่มีคืน null */
+  function getQuizCarryLocalGrabbableOptionIndex() {
+    if (!quizCarryGrabCoreGatesOk()) return null;
+    if (me.quizCarryHeld != null) return null;
+    const md = mapData;
+    const footprint = quizTilesFootprintPlay(me.x, me.y);
+    let pickupIdx = null;
+    for (const k of footprint) {
+      const p = k.split(',');
+      const tx = +p[0];
+      const ty = +p[1];
+      const opt = quizCarryOptionIndexAtPlay(md, tx, ty);
+      if (opt != null) pickupIdx = pickupIdx === null ? opt : pickupIdx;
+    }
+    if (pickupIdx == null || quizCarryOptionHeldByAnyone(pickupIdx)) return null;
+    return pickupIdx;
+  }
+
+  /** ยืนบนช่องตัวเลือกและหยิบได้ */
+  function quizCarryGrabPickupAvailable() {
+    return getQuizCarryLocalGrabbableOptionIndex() != null;
+  }
+
+  /** ถือป้ายแล้วยืนโซนส่งได้ */
+  function quizCarryGrabSubmitAvailable() {
+    if (!quizCarryGrabCoreGatesOk()) return false;
+    if (me.quizCarryHeld == null) return false;
+    return quizCarryCanSubmitAnswerAt(mapData, me.x, me.y);
+  }
+
+  /** true = กด F / ปุ่ม จะหยิบหรือส่งได้ทันที */
+  function quizCarryGrabInteractionAvailable() {
+    return quizCarryGrabPickupAvailable() || quizCarryGrabSubmitAvailable();
+  }
+
+  function syncQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    if (!isQuizCarry() || !mapData) {
+      btn.classList.add('is-hidden');
+      btn.classList.remove('quiz-carry-grab-btn--active');
+      btn.classList.remove('quiz-carry-grab-btn--place');
+      btn.setAttribute('aria-disabled', 'true');
+      return;
+    }
+    const grabSrc = BASE + '/img/quiz-carry/btn-grab.png';
+    const placeSrc = BASE + '/img/quiz-carry/btn-drop.png';
+    const img = btn.querySelector('img');
+    btn.classList.remove('is-hidden');
+    const active = quizCarryGrabInteractionAvailable();
+    btn.classList.toggle('quiz-carry-grab-btn--active', active);
+    btn.setAttribute('aria-disabled', active ? 'false' : 'true');
+    btn.style.pointerEvents = active ? '' : 'none';
+    if (img) {
+      if (active && quizCarryGrabSubmitAvailable()) {
+        img.src = placeSrc;
+        btn.classList.add('quiz-carry-grab-btn--place');
+        btn.title = 'ส่ง / วางคำตอบ — เหมือนกด F';
+        btn.setAttribute('aria-label', 'ส่งหรือวางคำตอบ');
+      } else {
+        img.src = grabSrc;
+        btn.classList.remove('quiz-carry-grab-btn--place');
+        btn.title = 'หยิบตัวเลือก — เหมือนกด F';
+        btn.setAttribute('aria-label', 'หยิบตัวเลือก (Grab)');
+      }
+    }
+  }
+
+  function resetQuizCarryPlayState() {
+    quizCarryPregameActive = false;
+    hideQuizCarryPregameOverlay();
+    quizCarryPool = [];
+    quizCarryCurrent = null;
+    quizCarryEmbedPendingQuestion = null;
+    quizCarryEmbedCountdownStartAt = 0;
+    quizCarryEmbedCountdownEndAt = 0;
+    quizCarryOptionRevealAt = 0;
+    quizCarryAnswerCloseAt = 0;
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryEmbedCountdownOverlay();
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    me.quizCarryHeld = null;
+    others.forEach((o) => {
+      if (!o) return;
+      o.quizCarryHeld = null;
+      o.botPath = [];
+    });
+  }
+
+  /** รวม carry จากดิสก์ — ใช้เฉพาะ GET ที่ Node รองรับ (path เดียวกับ server.js) ไม่เรียก .php เพื่อกัน 404 บน nginx/php-fpm */
+  async function mergeQuizCarrySettingsFromDisk(s) {
+    const out = s && typeof s === 'object' ? s : {};
+    try {
+      const rd = await fetch(BASE + '/api/quiz-carry-from-disk?_=' + Date.now(), { cache: 'no-store' });
+      if (rd.ok) {
+        const disk = await rd.json();
+        if (disk && typeof disk === 'object') {
+          if (disk.carryMapPanelTheme && typeof disk.carryMapPanelTheme === 'object') {
+            out.carryMapPanelTheme = disk.carryMapPanelTheme;
+          }
+          if (disk.carryEmbedCountdownTheme && typeof disk.carryEmbedCountdownTheme === 'object') {
+            out.carryEmbedCountdownTheme = disk.carryEmbedCountdownTheme;
+          }
+          if (Array.isArray(disk.carryChoicePlaqueThemes) && disk.carryChoicePlaqueThemes.length) {
+            out.carryChoicePlaqueThemes = disk.carryChoicePlaqueThemes;
+          } else if (disk.carryChoicePlaqueTheme && typeof disk.carryChoicePlaqueTheme === 'object') {
+            out.carryChoicePlaqueTheme = disk.carryChoicePlaqueTheme;
+          }
+          if (disk.carryReadMs != null) out.carryReadMs = disk.carryReadMs;
+          if (disk.carryAnswerMs != null) out.carryAnswerMs = disk.carryAnswerMs;
+          if (disk.carrySessionLength != null) out.carrySessionLength = disk.carrySessionLength;
+          const diskPlaqueScale = Number(disk.carryChoicePlaqueMapScale);
+          if (Number.isFinite(diskPlaqueScale)) {
+            out.carryChoicePlaqueMapScale = Math.max(0.85, Math.min(2.5, diskPlaqueScale));
+          }
+          if (Array.isArray(disk.carryQuestions) && disk.carryQuestions.length > 0) {
+            out.carryQuestions = disk.carryQuestions;
+          }
+        }
+      }
+    } catch (e) { /* ignore */ }
+    return out;
+  }
+
+  async function loadQuizCarryPoolAndStart() {
+    quizCarryRoundsCompleted = 0;
+    quizCarrySessionEnded = false;
+    hideQuizCarryTimeupOnDeskLayer();
+    hideQuizCarryResultEndLayer();
+    quizCarrySessionLength = 0;
+    let pool = [];
+    let s = {};
+    const snap = quizCarryJoinSettingsSnap && typeof quizCarryJoinSettingsSnap === 'object' ? quizCarryJoinSettingsSnap : null;
+    try {
+      const r = await fetch(BASE + '/api/quiz-settings?_=' + Date.now(), { cache: 'no-store' });
+      if (r.ok) {
+        const raw = await r.text();
+        const trimmed = (raw || '').trim();
+        if (trimmed.startsWith('{') && trimmed.endsWith('}')) {
+          const parsed = JSON.parse(trimmed);
+          if (parsed && typeof parsed === 'object') s = parsed;
+        }
+      }
+    } catch (e) { /* Node/HTML error — ต่อจาก merge ดิสก์ */ }
+    try {
+      s = await mergeQuizCarrySettingsFromDisk(s);
+    } catch (e) { /* ignore */ }
+    if (snap) {
+      if (s.carryReadMs == null && snap.carryReadMs != null) s.carryReadMs = snap.carryReadMs;
+      if (s.carryAnswerMs == null && snap.carryAnswerMs != null) s.carryAnswerMs = snap.carryAnswerMs;
+      if (s.carrySessionLength == null && snap.carrySessionLength != null) s.carrySessionLength = snap.carrySessionLength;
+    }
+    if (snap && snap.carryMapPanelTheme && typeof snap.carryMapPanelTheme === 'object') {
+      s.carryMapPanelTheme = snap.carryMapPanelTheme;
+    }
+    if (snap && snap.carryEmbedCountdownTheme && typeof snap.carryEmbedCountdownTheme === 'object') {
+      s.carryEmbedCountdownTheme = snap.carryEmbedCountdownTheme;
+    }
+    /* ไม่ทับ carryChoicePlaqueThemes จาก snap ถ้ามีแล้ว — snapshot ตอน join อาจเก่ากว่าไฟล์ที่เพิ่งบันทึกใน Admin (รูปป้ายหาย) */
+    if (snap && (!Array.isArray(s.carryChoicePlaqueThemes) || !s.carryChoicePlaqueThemes.length)) {
+      if (Array.isArray(snap.carryChoicePlaqueThemes) && snap.carryChoicePlaqueThemes.length) {
+        s.carryChoicePlaqueThemes = snap.carryChoicePlaqueThemes;
+      } else if (snap.carryChoicePlaqueTheme && typeof snap.carryChoicePlaqueTheme === 'object') {
+        s.carryChoicePlaqueTheme = snap.carryChoicePlaqueTheme;
+      }
+    }
+    if (snap && (s.carryChoicePlaqueMapScale == null || !Number.isFinite(Number(s.carryChoicePlaqueMapScale)))) {
+      const sm = Number(snap.carryChoicePlaqueMapScale);
+      if (Number.isFinite(sm)) s.carryChoicePlaqueMapScale = sm;
+    }
+    {
+      const sc = Number(s.carryChoicePlaqueMapScale);
+      quizCarryPlaqueMapScale = Number.isFinite(sc) ? Math.max(0.85, Math.min(2.5, sc)) : 1.25;
+    }
+    try {
+      quizCarryCarryTimingMs = {
+        carryReadMs: clampPreviewMs(s.carryReadMs, 3000, 0, 120000),
+        carryAnswerMs: clampPreviewMs(s.carryAnswerMs, 5000, 1000, 300000),
+      };
+      quizCarrySessionLength = clampCarrySessionLen(s.carrySessionLength, 0);
+      setQuizCarryMapPanelThemeFromApi(s);
+      setQuizCarryEmbedCountdownThemeFromApi(s);
+      setQuizCarryChoicePlaqueThemeFromApi(s);
+      for (let ti = 0; ti < QUIZ_CARRY_MAX_OPTION_SLOTS; ti++) {
+        const tUrl = sanitizeQuizCarryImageUrlClient(getEffectiveCarryChoicePlaqueThemeForChoice(ti).plaqueImageUrl);
+        if (!tUrl || quizCarryChoiceImageCache.has(tUrl)) continue;
+        const pim = new Image();
+        quizCarryApplyImageCrossOrigin(pim, tUrl);
+        pim.onload = () => { try { draw(); } catch (e) { /* ignore */ } };
+        quizCarryChoiceImageCache.set(tUrl, pim);
+        try {
+          pim.src = tUrl;
+        } catch (e) { /* ignore */ }
+      }
+      const carryOnly = s && Array.isArray(s.carryQuestions) && s.carryQuestions.length > 0;
+      const source = carryOnly ? s.carryQuestions : (s && Array.isArray(s.questions) ? s.questions : []);
+      for (let i = 0; i < source.length; i++) {
+        const n = normalizeQuizCarryQuestionFromAny(source[i]);
+        if (n) pool.push(n);
+      }
+    } catch (e) { /* map only */ }
+    if (!pool.length && mapData) pool = buildQuizCarryPoolFromMap(mapData);
+    quizCarryPool = pool;
+    for (let pi = 0; pi < pool.length; pi++) preloadQuizCarryChoiceImages(pool[pi]);
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    if (!pool.length) {
+      playQuizText = 'ไม่มีคำถาม — ตั้งใน Admin → คำถามหลายตัวเลือก หรือใส่ในแมป (quizQuestions)';
+      const qEl = document.getElementById('quiz-game-question');
+      if (qEl) qEl.textContent = playQuizText;
+      try {
+        syncPlayQuizMapPanel();
+      } catch (e) { /* ignore */ }
+      quizCarryJoinSettingsSnap = null;
+      return;
+    }
+    if (previewMode && editorEmbedReturn) {
+      beginQuizCarryEmbedPregame();
+    } else if (isDetectiveMinigamePlay()) {
+      quizCarryPickNextQuestion();
+    } else {
+      quizCarryPickNextQuestion();
+    }
+    if (!(previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now())) {
+      quizCarryRestoreEmbedPhaseLabel();
+    }
+    try {
+      syncPlayQuizMapPanel();
+    } catch (e) { /* ignore */ }
+    quizCarryJoinSettingsSnap = null;
+  }
+
+  function setupPlayQuizCarryUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) {
+      if (isDetectiveMinigamePlay() || (previewMode && editorEmbedReturn)) {
+        ov.classList.add('is-hidden');
+        ov.setAttribute('aria-hidden', 'true');
+      } else {
+        ov.classList.remove('is-hidden');
+        ov.setAttribute('aria-hidden', 'false');
+      }
+    }
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = isDetectiveMinigamePlay()
+        ? ''
+        : (quizCarryMapHasAnswerInteractive(mapData)
+          ? 'แต่ละตัวเลือกมีคนถือได้คนเดียว — ส่งคำตอบที่โซน interactive (เขียว) · โซนกลางม่วงเป็นกำแพง · กด F หรือปุ่ม GRAB มุมขวาล่าง'
+          : 'แต่ละตัวเลือกมีคนถือได้คนเดียว — โซนกลางเป็นกำแพง · ยืนชิดขอบแล้วกด F หรือปุ่ม GRAB ส่งเมื่อถือป้าย');
+    }
+    resetQuizCarryPlayState();
+    if (previewMode) {
+      loadQuizCarryPoolAndStart();
+    } else {
+      playQuizText = 'เข้าห้องแล้ว — คำถามจากแมป (เล่นจริงแนะนำซิงก์ผ่านโฮสต์ในอนาคต)';
+      loadQuizCarryPoolAndStart();
+    }
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    syncQuizCarryGrabButton();
+  }
+
+  function pickRandomTileForQuizCarryOption(md, optionIndex, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const want = optionIndex + 1;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryOptionArea && md.quizCarryOptionArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === want && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryHub(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.quizCarryHubArea && md.quizCarryHubArea[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileInQuizCarryInteractive(md, o) {
+    const w = md.width || 20, h = md.height || 15;
+    const pool = [];
+    for (let y = 0; y < h; y++) {
+      const row = md.interactive && md.interactive[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1 && spawnTileWalkablePlay(md, x, y)) {
+          if (canWalkLikeLobbyForBot(x + 0.5, y + 0.5, o.x, o.y, o)) pool.push({ x, y });
+        }
+      }
+    }
+    if (!pool.length) return null;
+    return pool[Math.floor(Math.random() * pool.length)];
+  }
+
+  function pickRandomTileForQuizCarrySubmit(md, o) {
+    if (quizCarryMapHasAnswerInteractive(md)) {
+      const p = pickRandomTileInQuizCarryInteractive(md, o);
+      if (p) return p;
+    }
+    return pickRandomTileInQuizCarryHub(md, o);
+  }
+
+  /** ช่วงไม่มีข้อ / รอตัวเลือก — ให้บอทเดินเล่นในแมปเหมือน preview ทั่วไป (กันยืนนิ่งทั้งเกม) */
+  function quizCarryPreviewBotLobbyWanderStep(o, w, h) {
+    const now = Date.now();
+    o.botIsWalking = false;
+    if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+      const d = pickRandomPreviewBotWanderDir();
+      o.botWanderDx = d[0];
+      o.botWanderDy = d[1];
+    }
+    if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+    if (now >= o.botWanderNextTurn) {
+      o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+      if (Math.random() < 0.55) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+    }
+    const accX = o.botWanderDx;
+    const accY = o.botWanderDy;
+    if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+    else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+    const step = MOVE_SPEED;
+    const nx = o.x + accX * step;
+    const ny = o.y + accY * step;
+    const ox = o.x;
+    const oy = o.y;
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+    }
+    if (!Number.isFinite(o.x)) o.x = 0.5;
+    if (!Number.isFinite(o.y)) o.y = 0.5;
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+  }
+
+  function stepQuizCarryPreviewBots() {
+    if (quizCarrySessionEnded) return;
+    if (quizCarryPregameActive) return;
+    if (!playBotsEnabled() || !isQuizCarry() || !mapData) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const nowPf = performance.now();
+    const pathfindMinGap = editorEmbedReturn ? 280 : 140;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (quizCarryFootprintOverlapsHub(o.x, o.y)) {
+        const sn = snapPositionOutOfQuizCarryHubIfNeeded(o.x, o.y);
+        if (Math.abs(sn.x - o.x) > 0.02 || Math.abs(sn.y - o.y) > 0.02) {
+          o.x = sn.x;
+          o.y = sn.y;
+          o.botPath = [];
+          o.botPathStuckTicks = 0;
+          o.botQuizCarryPathfindAfter = 0;
+        }
+      }
+      if (!o.botPath || o.botPath.length === 0) {
+        tryQuizCarryInteractionForPlayer(id, o.x, o.y, { silent: true });
+      }
+      /* ช่วงนับถอยหลัง / เปลี่ยนข้อ — ยังให้เดินได้ */
+      if (!quizCarryCurrent) {
+        quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        return;
+      }
+      const tier = o.botTier || 'avg';
+      const pCorrect = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.35 : 0.65;
+      const rawWant = Math.random() < pCorrect ? quizCarryCurrent.correctIndex
+        : Math.floor(Math.random() * Math.max(2, (quizCarryCurrent.choices || []).length));
+      const wantIdx = pickQuizCarryTargetOptionIndexAvoidingTaken(rawWant);
+      if (!o.botPath || !o.botPath.length) {
+        if (typeof o.botQuizCarryPathfindAfter !== 'number') o.botQuizCarryPathfindAfter = 0;
+        if (nowPf < o.botQuizCarryPathfindAfter) {
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+          return;
+        }
+        const jitter = (String(id).length * 31 + ((o.x | 0) ^ (o.y | 0)) * 7) % 160;
+        if (quizCarryOptionsPickableNow()) {
+          if (o.quizCarryHeld == null && wantIdx != null) {
+            const dest = pickRandomTileForQuizCarryOption(mapData, wantIdx, o);
+            if (dest) {
+              const path = pathfindPlayForBot(o.x, o.y, dest.x + 0.5, dest.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          } else {
+            const sub = pickRandomTileForQuizCarrySubmit(mapData, o);
+            if (sub) {
+              const path = pathfindPlayForBot(o.x, o.y, sub.x + 0.5, sub.y + 0.5, o);
+              if (path && path.length > 1) o.botPath = path.slice(1);
+            }
+          }
+          o.botQuizCarryPathfindAfter = nowPf + pathfindMinGap + jitter;
+        } else {
+          o.botQuizCarryPathfindAfter = nowPf + 120;
+          quizCarryPreviewBotLobbyWanderStep(o, w, h);
+        }
+      } else {
+        stepPreviewBotAlongPath(o, w, h);
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+  }
+
+  function getStackAreaBoundsPlay(area, w, h) {
+    let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+    let any = false;
+    for (let y = 0; y < h; y++) {
+      const row = area && area[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (row[x] === 1) {
+          any = true;
+          minX = Math.min(minX, x);
+          maxX = Math.max(maxX, x);
+          minY = Math.min(minY, y);
+          maxY = Math.max(maxY, y);
+        }
+      }
+    }
+    if (!any) return null;
+    return {
+      minX, maxX, minY, maxY,
+      cx: (minX + maxX + 1) / 2,
+      cy: (minY + maxY + 1) / 2,
+    };
+  }
+
+  function getStackCameraCentersPx() {
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let cx = (w / 2) * ts;
+    let cy = (h / 2) * ts;
+    if (land && rel) {
+      cx = land.cx * ts;
+      cy = ((land.cy + rel.cy) / 2) * ts;
+    } else if (land) {
+      cx = land.cx * ts;
+      cy = land.cy * ts;
+    } else if (rel) {
+      cx = rel.cx * ts;
+      cy = rel.cy * ts;
+    }
+    return { px: cx, py: cy };
+  }
+
+  /** ใช้ playStackBlockWidthTiles + แผนที่ — เรียกหลังโหลด /api/game-timing เมื่อหอว่าง */
+  function reapplyStackMiniSizingFromGlobals() {
+    if (!mapData || !isStack() || !stackMini) return;
+    if (stackMini.layers && stackMini.layers.length > 0) return;
+    if (stackFall || stackMini.settling) return;
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const iw = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackMini.initialWidthTiles = iw;
+    stackMini.widthTiles = iw;
+  }
+
+  function resetStackMinigameState() {
+    stackMini = null;
+    if (!mapData || !isStack()) return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const rel = getStackAreaBoundsPlay(mapData.stackReleaseArea, w, h);
+    let towerCX = w * 0.5;
+    let swingAmp = 1.85;
+    let floorWorldY = (h - 1) * tileSize;
+    let swingWorldY = floorWorldY - tileSize * 1.35;
+    if (land) {
+      towerCX = land.cx;
+      floorWorldY = (land.maxY + 1) * tileSize;
+      const span = Math.max(1, land.maxX - land.minX + 1);
+      swingAmp = Math.min(span * 0.44, Math.max(0.6, span * 0.36));
+    }
+    if (rel) {
+      swingWorldY = (rel.cy + 0.5) * tileSize;
+      const spanR = Math.max(1, rel.maxX - rel.minX + 1);
+      swingAmp = Math.max(swingAmp, Math.min(spanR * 0.42, 4.2));
+    }
+    const autoW = Math.min(3.2, Math.max(0.85, land ? (land.maxX - land.minX + 1) * 0.48 : 2));
+    const initW = playStackBlockWidthTiles != null && Number.isFinite(playStackBlockWidthTiles)
+      ? Math.max(0.85, Math.min(3.2, playStackBlockWidthTiles))
+      : autoW;
+    stackFall = null;
+    stackMini = {
+      topCenterX: towerCX,
+      widthTiles: initW,
+      initialWidthTiles: initW,
+      craneWorldX: towerCX * tileSize,
+      swingAmp,
+      phase: Math.random() * Math.PI * 2,
+      phaseSpeed: playStackSwingHz,
+      floorWorldY,
+      swingWorldY,
+      layerWorldH: Math.max(14, tileSize * 0.3),
+      blockStripH: Math.max(16, tileSize * 0.32),
+      layers: [],
+      lives: 3,
+      score: 0,
+      combo: 0,
+      lastDropAt: 0,
+      stackTiltRad: 0,
+      stackTiltVel: 0,
+    };
+    if (previewFillBots) {
+      me.stackPreviewHumanPts = 0;
+      stackPreviewHudLog = [];
+    }
+  }
+
+  function stackEaseDrop(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t;
+  }
+
+  /** ตกช้า/นุ่มขึ้นเมื่อปล่อยเพี้ยนกลาง (คล้าย Tower of Babel — มีน้ำหนักก่อนนิ่ง) */
+  function stackEaseDropPhys(t, sloppyN) {
+    t = Math.max(0, Math.min(1, t));
+    if (sloppyN < 0.14) return t * t;
+    return t < 0.5 ? 4 * t * t * t : 1 - Math.pow(-2 * t + 2, 3) / 2;
+  }
+
+  /**
+   * @param {object} hit
+   * @param {{ human?: boolean, botId?: string } | undefined} previewAttribution — โหมด preview: แยกคะแนนแสดงในแถบ (ตึกยังเป็นของร่วม)
+   */
+  function applyStackHitFromDrop(hit, previewAttribution) {
+    if (!stackMini || !hit) return;
+    if (hit.miss) {
+      stackMini.lives = Math.max(0, stackMini.lives - 1);
+      stackMini.combo = 0;
+      if (stackMini.lives <= 0) {
+        stackMini.score = Math.max(0, stackMini.score - 2);
+        stackMini.lives = 3;
+        stackMini.layers = [];
+        stackMini.widthTiles = stackMini.initialWidthTiles;
+        const lb = getStackAreaBoundsPlay(mapData.stackLandArea, mapData.width || 20, mapData.height || 15);
+        stackMini.topCenterX = lb ? lb.cx : (mapData.width || 20) * 0.5;
+        stackMini.combo = 0;
+        stackMini.stackTiltRad = 0;
+        stackMini.stackTiltVel = 0;
+      }
+    } else {
+      const W = stackMini.initialWidthTiles;
+      stackMini.layers.push({ w: W, cx: hit.placedCx });
+      stackMini.score += hit.pts;
+      if (previewFillBots && previewAttribution) {
+        if (previewAttribution.human) {
+          me.stackPreviewHumanPts = (me.stackPreviewHumanPts || 0) + hit.pts;
+        } else if (previewAttribution.botId) {
+          const ob = others.get(previewAttribution.botId);
+          if (ob) ob.stackBotScore = (ob.stackBotScore || 0) + hit.pts;
+        }
+      }
+      stackMini.combo = hit.perfect ? stackMini.combo + 1 : 0;
+      stackMini.widthTiles = W;
+      stackMini.topCenterX = hit.placedCx;
+    }
+  }
+
+  /**
+   * บล็อกทุกชั้นหน้ากว้างเท่ากัน (initialWidthTiles) · พลาดเมื่อทับแท่นไม่พอ
+   * วาดชั้นเป็นสี่เหลี่ยมแนวนอน (ไม่หมุนต่อชั้น) เพื่อกองตรง ไม่บิดเป็นกองไม้
+   */
+  function computeStackDropResult(m) {
+    const raw = m.swingAmp * Math.sin(m.phase);
+    const wMap = mapData.width || 20;
+    const hMap = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, wMap, hMap);
+    const fallW = m.initialWidthTiles;
+    let supportCx;
+    let supportW;
+    if (m.layers.length === 0) {
+      supportCx = land ? land.cx : wMap * 0.5;
+      supportW = land ? (land.maxX - land.minX + 1) : Math.max(8, fallW * 2.2);
+    } else {
+      const sup = m.layers[m.layers.length - 1];
+      supportCx = sup.cx;
+      supportW = fallW;
+    }
+    const c1 = m.topCenterX + raw;
+    const half1 = fallW * 0.5;
+    const half0 = supportW * 0.5;
+    const left = Math.max(supportCx - half0, c1 - half1);
+    const right = Math.min(supportCx + half0, c1 + half1);
+    const overlap = right - left;
+    const missThreshold =
+      m.layers.length === 0
+        ? Math.max(0.32, fallW * 0.11)
+        : Math.max(0.26, fallW * 0.17);
+    const miss = overlap < missThreshold;
+    const placedCx = c1;
+    const delta = c1 - supportCx;
+    const span = supportW * 0.5 + fallW * 0.5;
+    const offN = Math.abs(delta) / Math.max(0.01, span);
+    const perfect = !miss && offN < 0.075;
+    const bonus = perfect ? Math.min(4, m.combo || 0) : 0;
+    const pts = perfect ? (2 + bonus) : (miss ? 0 : 1);
+    const supportRatio = fallW > 0 ? overlap / fallW : 0;
+    return {
+      miss,
+      perfect,
+      pts,
+      landOffsetTiles: raw,
+      placedW: fallW,
+      placedCx,
+      overlap,
+      supportRatio,
+      delta,
+    };
+  }
+
+  /**
+   * เริ่มแอนิเมชันบล็อกร่วง (ผู้เล่น/บอทใช้ path เดียวกัน)
+   * @param {object} hit จาก computeStackDropResult
+   * @param {{ human?: boolean, botId?: string } | null} previewActor โหมด preview: ใครเป็นคนปล่อย (สำหรับคะแนน + เลื่อนตา)
+   * @returns {boolean}
+   */
+  function startStackFallAnimation(hit, previewActor) {
+    if (!stackMini || !hit || stackFall || stackMini.settling) return false;
+    const m = stackMini;
+    const tw = m.widthTiles * tileSize;
+    const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+    const lh = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    let y1 = m.floorWorldY - (m.layers.length + 1) * lh;
+    if (y1 <= m.swingWorldY) y1 = m.swingWorldY + lh * 0.55;
+    const landOff = hit.landOffsetTiles || 0;
+    const landCxWorld = (m.topCenterX + landOff) * tileSize;
+    const xLeft0 = swingXW - tw / 2;
+    const xLeft1 = landCxWorld - tw / 2;
+    const offN = Math.min(1, Math.abs(landOff) / Math.max(0.01, m.swingAmp));
+    const dur = Math.max(400, Math.min(1280, 240 + (y1 - m.swingWorldY) * 0.92 + offN * 560));
+    const tiltMax = hit.miss
+      ? 0.28 * (0.25 + offN)
+      : 0.16 * offN * (hit.perfect ? 0.1 : 1);
+    const isHumanPreview = !!(previewActor && previewActor.human);
+    const botIdPreview = previewActor && previewActor.botId ? previewActor.botId : null;
+    stackFall = {
+      t0: performance.now(),
+      dur,
+      xLeft0,
+      xLeft1,
+      tw,
+      y0: m.swingWorldY,
+      y1,
+      hit,
+      tiltMax,
+      sloppyN: offN,
+      previewHumanDrop: isHumanPreview,
+      previewBotId: botIdPreview,
+    };
+    return true;
+  }
+
+  /** @returns {boolean} เริ่มแอนิเมชันร่วงแล้วหรือไม่ */
+  function tryHumanStackDrop() {
+    if (!stackMini || !isStack() || stackFall || stackMini.settling) return false;
+    if (playBotsEnabled() && mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    if (playBotsEnabled() && !isStackPreviewHumanTurn()) return false;
+    const now = Date.now();
+    if (now - stackMini.lastDropAt < 480) return false;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { human: true } : null)) return false;
+    if (playBotsEnabled()) {
+      lastStackPreviewActorId = '__human__';
+      lastStackPreviewActorUntil = Date.now() + 900;
+    }
+    return true;
+  }
+
+  /** บอท preview: ปล่อยแบบมีแอนิเมชันร่วงเหมือนผู้เล่น — apply หลังแอนิเมชันจบ */
+  function simulatePreviewBotStackDrop(botId, o) {
+    if (!stackMini || stackFall || stackMini.settling) return;
+    const hit = computeStackDropResult(stackMini);
+    if (!startStackFallAnimation(hit, playBotsEnabled() ? { botId } : null)) return;
+    o.stackBotGlowUntil = Date.now() + Math.max(900, 400 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+    lastStackPreviewActorId = botId;
+    lastStackPreviewActorUntil = Date.now() + Math.max(1000, 500 + (stackFall && stackFall.dur ? stackFall.dur : 800));
+  }
+
+  /** Stack preview: สลับตา — เฉพาะบอทที่ถึงตาถึงจะจำลองปล่อยหนึ่งครั้งแล้วเลื่อนตา */
+  function stepPreviewStackTurnBased(nowMs) {
+    if (!playBotsEnabled() || !isStack() || !stackMini || stackFall || stackMini.settling) return;
+    if (mapData && mapData.gameType === 'stack' &&
+        (!stackPreviewTurnOrder || stackPreviewTurnOrder.length !== stackTurnCount)) {
+      rebuildStackPreviewTurnOrder();
+    }
+    const order = stackPreviewTurnOrder;
+    if (!order || order.length !== stackTurnCount) return;
+    const cur = order[stackPreviewTurnIndex];
+    if (!cur || cur.kind !== 'bot') return;
+    if (!cur.botId) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    const o = others.get(cur.botId);
+    if (!o) {
+      advanceStackPreviewTurn();
+      return;
+    }
+    if (stackPreviewBotThinkUntil === 0) {
+      stackPreviewBotThinkUntil = nowMs + 320 + Math.random() * 480;
+      return;
+    }
+    if (nowMs < stackPreviewBotThinkUntil) return;
+    stackPreviewBotThinkUntil = 0;
+    simulatePreviewBotStackDrop(cur.botId, o);
+  }
+
+  function stackTickFrame() {
+    const now = performance.now();
+    const dt = Math.min(0.06, (now - lastStackTickMs) / 1000);
+    lastStackTickMs = now;
+    if (stackMini && stackMini.settling) {
+      const s = stackMini.settling;
+      const u = (now - s.t0) / s.dur;
+      if (u >= 1) {
+        const wasHuman = !!s.previewHumanDrop;
+        const settleBotId = s.previewBotId || null;
+        applyStackHitFromDrop({ miss: true, perfect: false, pts: 0, landOffsetTiles: 0 }, undefined);
+        if (playBotsEnabled() && (wasHuman || settleBotId)) {
+          stackPreviewLogStackDrop({ miss: true, perfect: false, pts: 0 }, { human: wasHuman, botId: settleBotId });
+        }
+        stackMini.settling = null;
+        stackMini.lastDropAt = Date.now();
+        if (playBotsEnabled() && (wasHuman || settleBotId)) advanceStackPreviewTurn();
+      }
+    } else if (stackFall) {
+      const t = (now - stackFall.t0) / stackFall.dur;
+      if (t >= 1) {
+        const wasHuman = !!stackFall.previewHumanDrop;
+        const fallBotId = stackFall.previewBotId || null;
+        const hit = stackFall.hit;
+        const stableMin = 0.52;
+        if (hit.miss) {
+          applyStackHitFromDrop(hit);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        } else if (hit.supportRatio != null && hit.supportRatio < stableMin) {
+          const stripH = stackMini.blockStripH || Math.max(16, tileSize * 0.32);
+          stackMini.settling = {
+            t0: performance.now(),
+            dur: Math.max(820, Math.min(2600, 720 + (1 - hit.supportRatio) * 3400)),
+            hit,
+            xLeft0: stackFall.xLeft1,
+            yTop0: stackFall.y1,
+            twWorld: stackFall.tw,
+            stripH,
+            delta: hit.delta || 0,
+            previewHumanDrop: wasHuman,
+            previewBotId: fallBotId,
+          };
+          stackFall = null;
+        } else {
+          let previewAttr;
+          if (playBotsEnabled()) {
+            if (wasHuman) previewAttr = { human: true };
+            else if (fallBotId) previewAttr = { botId: fallBotId };
+          }
+          applyStackHitFromDrop(hit, previewAttr);
+          if (playBotsEnabled() && (wasHuman || fallBotId)) {
+            stackPreviewLogStackDrop(hit, { human: wasHuman, botId: fallBotId });
+          }
+          stackMini.lastDropAt = Date.now();
+          stackFall = null;
+          if (playBotsEnabled() && (wasHuman || fallBotId)) advanceStackPreviewTurn();
+        }
+      }
+    } else if (stackMini) {
+      stackMini.phase += stackMini.phaseSpeed * dt * Math.PI * 2;
+    }
+    stepPreviewStackTurnBased(Date.now());
+  }
+
+  function applyStackPreviewSpawnLayout() {
+    if (!mapData || mapData.gameType !== 'stack') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const land = getStackAreaBoundsPlay(mapData.stackLandArea, w, h);
+    const cx = land ? land.cx : w / 2 - 0.5;
+    const cy = land ? land.cy : h / 2 - 0.5;
+    me.x = cx;
+    me.y = cy;
+    me.tx = cx;
+    me.ty = cy;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.x = cx + (Math.random() - 0.5) * 0.15;
+      o.y = cy + (Math.random() - 0.5) * 0.15;
+      o.tx = o.x;
+      o.ty = o.y;
+      o.stackBotScore = 0;
+      o.stackBotNextTry = Date.now() + 300 + Math.random() * 700;
+    });
+  }
+
+  function drawStackMinigame(ctx, worldToScreen, zoom) {
+    if (!stackMini) return;
+    const m = stackMini;
+    const layerWorldH = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    const stripH = m.blockStripH || Math.max(16, tileSize * 0.32);
+    const floorY = m.floorWorldY;
+    const guideTopY = Math.max(0, m.swingWorldY - tileSize * 6.5);
+    const [gtx, gty] = worldToScreen(m.topCenterX * tileSize, guideTopY);
+    const [gbx, gby] = worldToScreen(m.topCenterX * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(255,255,255,0.22)';
+    ctx.lineWidth = Math.max(1, zoom * 0.85);
+    ctx.setLineDash([5, 7]);
+    ctx.beginPath();
+    ctx.moveTo(gtx, gty);
+    ctx.lineTo(gbx, gby);
+    ctx.stroke();
+    ctx.setLineDash([]);
+    ctx.lineWidth = 1;
+
+    const nLay = m.layers.length;
+    for (let i = 0; i < nLay; i++) {
+      const L = m.layers[i];
+      const lw = (L.w != null ? L.w : m.initialWidthTiles) * tileSize;
+      const cxW = L.cx * tileSize;
+      const yb = floorY - (i + 1) * layerWorldH;
+      const xl = cxW - lw / 2;
+      const [sx, sy] = worldToScreen(xl, yb);
+      const drawW = lw * zoom;
+      const drawH = layerWorldH * zoom;
+      const hue = (i * 47) % 360;
+      ctx.fillStyle = 'hsla(' + hue + ', 68%, 56%, 0.9)';
+      ctx.fillRect(sx, sy, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255,255,255,0.38)';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(sx, sy, drawW, drawH);
+    }
+    if (m.settling) {
+      const s = m.settling;
+      const u = Math.min(1, (performance.now() - s.t0) / s.dur);
+      const ue = u * u;
+      const rotSign = s.delta >= 0 ? 1 : -1;
+      const rotRad = ue * 1.22 * rotSign;
+      const yFall = ue * ue * tileSize * 6.5;
+      const xSlide = rotSign * ue * tileSize * 0.62;
+      const cxW = s.xLeft0 + s.twWorld / 2 + xSlide;
+      const cyW = s.yTop0 + s.stripH * 0.5 + yFall;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      const drawW = s.twWorld * zoom;
+      const drawH = s.stripH * zoom;
+      const hue = (m.layers.length * 47) % 360;
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(rotRad);
+      ctx.fillStyle = 'hsla(' + hue + ', 70%, 52%, 0.93)';
+      ctx.fillRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.strokeStyle = 'rgba(255, 200, 140, 0.9)';
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-drawW / 2, -drawH / 2, drawW, drawH);
+      ctx.restore();
+    } else {
+      const twWorld = m.widthTiles * tileSize;
+      const drawStripPx = stripH * zoom;
+      let blockLeftWorld;
+      let blockTopWorld;
+      let fallTiltRad = 0;
+      if (stackFall) {
+        const tRaw = (performance.now() - stackFall.t0) / stackFall.dur;
+        const t = Math.min(1, tRaw);
+        const u = stackEaseDropPhys(t, stackFall.sloppyN);
+        blockLeftWorld = stackFall.xLeft0 + (stackFall.xLeft1 - stackFall.xLeft0) * u;
+        blockTopWorld = stackFall.y0 + (stackFall.y1 - stackFall.y0) * u;
+        fallTiltRad = stackFall.tiltMax * Math.sin(Math.PI * u);
+      } else {
+        const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
+        blockLeftWorld = swingXW - twWorld / 2;
+        blockTopWorld = m.swingWorldY;
+        const cableTopY = Math.max(0, m.swingWorldY - tileSize * 6);
+        const craneX = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
+        const cxMid = blockLeftWorld + twWorld / 2;
+        const [tcx, tcy] = worldToScreen(craneX, cableTopY);
+        const [bcx, bcy] = worldToScreen(cxMid, blockTopWorld);
+        ctx.strokeStyle = 'rgba(90, 88, 86, 0.75)';
+        ctx.lineWidth = Math.max(2.2, zoom * 1.4);
+        ctx.setLineDash([]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.strokeStyle = 'rgba(125, 207, 255, 0.35)';
+        ctx.lineWidth = Math.max(1, zoom * 0.65);
+        ctx.setLineDash([3, 5]);
+        ctx.beginPath();
+        ctx.moveTo(tcx, tcy);
+        ctx.lineTo(bcx, bcy);
+        ctx.stroke();
+        ctx.setLineDash([]);
+        ctx.lineWidth = 1;
+      }
+      const hitMissTint = stackFall && stackFall.hit && stackFall.hit.miss;
+      ctx.fillStyle = hitMissTint ? 'rgba(247, 118, 190, 0.88)' : 'rgba(125, 207, 255, 0.95)';
+      ctx.strokeStyle = hitMissTint ? 'rgba(255, 180, 210, 0.98)' : 'rgba(192, 202, 245, 0.98)';
+      const cxW = blockLeftWorld + twWorld / 2;
+      const cyW = blockTopWorld + stripH * 0.5;
+      const [cxs, cys] = worldToScreen(cxW, cyW);
+      ctx.save();
+      ctx.translate(cxs, cys);
+      ctx.rotate(fallTiltRad);
+      ctx.fillRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-twWorld * zoom / 2, -drawStripPx / 2, twWorld * zoom, drawStripPx);
+      ctx.lineWidth = 1;
+      ctx.restore();
+    }
+    const [fsx, fsy] = worldToScreen(0, floorY);
+    const [fex, fey] = worldToScreen(mapData.width * tileSize, floorY);
+    ctx.strokeStyle = 'rgba(247, 118, 190, 0.65)';
+    ctx.lineWidth = 3;
+    ctx.beginPath();
+    ctx.moveTo(fsx, fsy);
+    ctx.lineTo(fex, fey);
+    ctx.stroke();
+    ctx.lineWidth = 1;
+  }
+
+  function applyGauntletTimingFromServer(payload) {
+    if (!payload || typeof payload !== 'object') return;
+    const tm = Number(payload.gauntletTickMs);
+    if (Number.isFinite(tm)) gauntletRuntimeTickMs = Math.max(80, Math.min(800, tm));
+    const jt = Number(payload.gauntletJumpTicks);
+    if (Number.isFinite(jt)) gauntletRuntimeJumpTicks = Math.max(4, Math.min(40, jt));
+    const tl = Number(payload.gauntletTimeLimitSec);
+    if (Number.isFinite(tl)) gauntletRuntimeTimeLimitSec = Math.max(0, Math.min(7200, tl));
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletEndsAt')) {
+      if (payload.gauntletEndsAt == null) gauntletEndsAtMs = null;
+      else {
+        const ge = Number(payload.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletCrownRunHeld')) {
+      gauntletCrownRunHeldRemote = !!payload.gauntletCrownRunHeld;
+      if (!gauntletCrownRunHeldRemote && isGauntletCrownHeistMapPlay()) {
+        gauntletCrownPregamePhase = 'live';
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaneImageUrls') && Array.isArray(payload.gauntletLaneImageUrls)) {
+      gauntletLaneImageUrls = payload.gauntletLaneImageUrls
+        .filter((x) => typeof x === 'string')
+        .map((x) => normalizeGauntletAssetUrlForPlay(x))
+        .filter((x) => x)
+        .slice(0, 24);
+      gauntletLaneImageUrls.forEach((x) => ensureGauntletAssetImage(x));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserTopUrl')) {
+      gauntletLaserTopUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserTopUrl === 'string' ? payload.gauntletLaserTopUrl : '');
+      ensureGauntletAssetImage(gauntletLaserTopUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserBottomUrl')) {
+      gauntletLaserBottomUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserBottomUrl === 'string' ? payload.gauntletLaserBottomUrl : '');
+      ensureGauntletAssetImage(gauntletLaserBottomUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineUrl')) {
+      gauntletLaserLineUrl = normalizeGauntletAssetUrlForPlay(typeof payload.gauntletLaserLineUrl === 'string' ? payload.gauntletLaserLineUrl : '');
+      ensureGauntletAssetImage(gauntletLaserLineUrl);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserFillColor')) {
+      gauntletLaserFillColor = clampClientLaserColor(payload.gauntletLaserFillColor, gauntletLaserFillColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserStrokeColor')) {
+      gauntletLaserStrokeColor = clampClientLaserColor(payload.gauntletLaserStrokeColor, gauntletLaserStrokeColor);
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'gauntletLaserLineWidthPx')) {
+      const lw = Number(payload.gauntletLaserLineWidthPx);
+      if (Number.isFinite(lw)) gauntletLaserLineWidthPx = Math.max(0, Math.min(24, Math.round(lw)));
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackSwingHz')) {
+      const sh = Number(payload.stackSwingHz);
+      if (Number.isFinite(sh)) playStackSwingHz = Math.max(0.08, Math.min(2.8, sh));
+      if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'stackBlockWidthTiles')) {
+      const raw = payload.stackBlockWidthTiles;
+      if (raw == null || raw === '') playStackBlockWidthTiles = null;
+      else {
+        const nw = Number(raw);
+        playStackBlockWidthTiles = Number.isFinite(nw) && nw >= 0.85
+          ? Math.max(0.85, Math.min(3.2, Math.round(nw * 100) / 100))
+          : null;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveJumpHeightMult')) {
+      const jm = Number(payload.jumpSurviveJumpHeightMult);
+      if (Number.isFinite(jm)) {
+        playJumpSurviveJumpHeightMult = Math.round(Math.max(0.5, Math.min(4, jm)) * 100) / 100;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'jumpSurviveMissionTimeSec')) {
+      const jt = Number(payload.jumpSurviveMissionTimeSec);
+      if (Number.isFinite(jt) && jt > 0) {
+        playJumpSurviveMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(jt)));
+      } else {
+        playJumpSurviveMissionTimeSec = 0;
+      }
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'spaceShooterMissionTimeSec')) {
+      const st = Number(payload.spaceShooterMissionTimeSec);
+      if (Number.isFinite(st) && st > 0) {
+        playSpaceShooterMissionTimeSec = Math.max(10, Math.min(7200, Math.floor(st)));
+      } else {
+        playSpaceShooterMissionTimeSec = 0;
+      }
+    }
+    if (isStack() && stackMini) reapplyStackMiniSizingFromGlobals();
+  }
+
+  /** เลอร์ปตำแหน่งตัวละครต่อเฟรม (ยิ่งสูงยิ่งตามเป้าเร็ว) */
+  const GAUNTLET_VIS_LERP = 0.42;
+
+  function gauntletObsSmoothstep(t) {
+    t = Math.max(0, Math.min(1, t));
+    return t * t * (3 - 2 * t);
+  }
+
+  function cloneGauntletObsSnap(arr) {
+    if (!Array.isArray(arr)) return [];
+    return arr.map((o) => {
+      if (!o || o.id == null) return null;
+      const row = { id: o.id, kind: o.kind, x: o.x, y: o.y };
+      if (o.kind === 'laser') {
+        if (o.y0 != null) row.y0 = o.y0;
+        if (o.y1 != null) row.y1 = o.y1;
+      }
+      return row;
+    }).filter(Boolean);
+  }
+
+  function gauntletLaserRowHitRange(ob, mapH) {
+    const h = Math.max(1, Math.floor(Number(mapH)) || 15);
+    let y0 = ob && ob.y0 != null && Number.isFinite(Number(ob.y0)) ? Math.floor(Number(ob.y0)) : 0;
+    let y1 = ob && ob.y1 != null && Number.isFinite(Number(ob.y1)) ? Math.floor(Number(ob.y1)) : h - 1;
+    y0 = Math.max(0, Math.min(h - 1, y0));
+    y1 = Math.max(0, Math.min(h - 1, y1));
+    if (y1 < y0) {
+      const t = y0;
+      y0 = y1;
+      y1 = t;
+    }
+    return { y0, y1 };
+  }
+
+  function gauntletLaserOverlapsPlayerRow(ob, py, mapH) {
+    const { y0, y1 } = gauntletLaserRowHitRange(ob, mapH);
+    return py >= y0 && py <= y1;
+  }
+
+  /** โค้งยกตัว: ขึ้นถึงจุดสูงสุดเร็ว ลงชัน (รู้สึกลงพื้นเร็วกว่าแบบสมมาตร) */
+  function gauntletLiftHeightNorm(air, jumpTicksMax) {
+    const jm = Math.max(4, jumpTicksMax || 16);
+    const a = Math.max(0, Math.min(jm, Number(air) || 0));
+    const t = a / jm;
+    const peakAt = 0.28;
+    if (t >= peakAt) {
+      const span = 1 - peakAt;
+      const u = span > 0 ? (t - peakAt) / span : 0;
+      return Math.max(0, 1 - u * u * 1.2);
+    }
+    return Math.min(1, t / peakAt);
+  }
+
+  function getGauntletObsDrawPositionsAt(nowMs) {
+    if (!gauntletObsRenderNext.length) return [];
+    const elapsed = nowMs - gauntletObsBlendT0;
+    const alpha = gauntletObsSmoothstep(elapsed / gauntletRuntimeTickMs);
+    const prevMap = new Map(gauntletObsRenderPrev.map((o) => [o.id, o]));
+    const out = [];
+    for (let i = 0; i < gauntletObsRenderNext.length; i++) {
+      const n = gauntletObsRenderNext[i];
+      if (!n) continue;
+      const p = prevMap.get(n.id);
+      let drawX = n.x;
+      if (p && Number.isFinite(p.x) && Number.isFinite(n.x)) drawX = p.x + (n.x - p.x) * alpha;
+      const row = { id: n.id, kind: n.kind, drawX, y: n.y };
+      if (n.kind === 'laser') {
+        if (n.y0 != null) row.y0 = n.y0;
+        if (n.y1 != null) row.y1 = n.y1;
+      }
+      out.push(row);
+    }
+    return out;
+  }
+
+  function pushGauntletObsRenderFrame(newObs) {
+    const now = performance.now();
+    const next = cloneGauntletObsSnap(newObs);
+    if (!gauntletObsRenderNext.length) {
+      gauntletObsRenderPrev = next.slice();
+      gauntletObsRenderNext = next.slice();
+    } else {
+      const curDraw = getGauntletObsDrawPositionsAt(now);
+      const curMap = new Map(curDraw.map((o) => [o.id, o.drawX]));
+      gauntletObsRenderPrev = next.map((n) => {
+        const row = {
+          id: n.id,
+          kind: n.kind,
+          x: curMap.has(n.id) ? curMap.get(n.id) : n.x,
+          y: n.y,
+        };
+        if (n.kind === 'laser') {
+          if (n.y0 != null) row.y0 = n.y0;
+          if (n.y1 != null) row.y1 = n.y1;
+        }
+        return row;
+      });
+      gauntletObsRenderNext = next;
+    }
+    gauntletObsBlendT0 = now;
+  }
+
+  function lerpGauntletEntityPos(x, y, tx, ty) {
+    let nx = x;
+    let ny = y;
+    if (tx != null && Number.isFinite(tx)) {
+      nx += (tx - nx) * GAUNTLET_VIS_LERP;
+      if (Math.abs(tx - nx) < 0.02) nx = tx;
+    }
+    if (ty != null && Number.isFinite(ty)) {
+      ny += (ty - ny) * GAUNTLET_VIS_LERP;
+      if (Math.abs(ty - ny) < 0.02) ny = ty;
+    }
+    return { nx, ny };
+  }
+
+  /**
+   * บอท preview ใน Gauntlet: ตัดสินใจกระโดด (client-only; เซิร์ฟเวอร์ไม่รู้จักบอท)
+   * — ตอบสนองสิ่งกีดขวางที่ชนเซลล์เดียวกัน + กระโดดล่วงหน้าเมื่อ threat อยู่คอลัมน์ถัดไป
+   */
+  function maybePreviewBotGauntletJump(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    if ((o.gauntletJumpTicks || 0) > 0) return;
+    const { ch: gauntletCh } = getCharacterFootprintWH(mapData);
+    let sameCell = false;
+    let incomingCol = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const obs = obstacles[i];
+      if (!obs) continue;
+      if (obs.kind === 'lane' && typeof obs.y === 'number') {
+        if (obs.x === px && obs.y >= py && obs.y < py + gauntletCh) sameCell = true;
+        if (obs.x === px + 1 && obs.y >= py && obs.y < py + gauntletCh) incomingCol = true;
+      }
+      if (obs.kind === 'laser' && typeof obs.x === 'number') {
+        if (obs.x === px && gauntletLaserOverlapsPlayerRow(obs, py, h)) sameCell = true;
+        if (obs.x === px + 1 && gauntletLaserOverlapsPlayerRow(obs, py, h)) incomingCol = true;
+      }
+    }
+    const tier = o.botTier || 'avg';
+    const roll = Math.random();
+    const pSame = tier === 'sharp' ? 0.96 : tier === 'weak' ? 0.62 : 0.86;
+    const pAhead = tier === 'sharp' ? 0.9 : tier === 'weak' ? 0.48 : 0.72;
+    if (sameCell && roll < pSame) {
+      o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+      return;
+    }
+    if (incomingCol && roll < pAhead) o.gauntletJumpTicks = gauntletRuntimeJumpTicks;
+  }
+
+  /** หนึ่ง tick เดียวกับ runGauntletTick ฝั่งเซิร์ฟเวอร์ (เฉพาะ collision + เลื่อน x) */
+  function applyGauntletPhysicsToPreviewBot(o, obstacles, w, h) {
+    if (isGauntletCrownHeistMapPlay() && o.gauntletEliminated) return;
+    let px = Math.floor(Number(o.x)) || 0;
+    let py = Math.floor(Number(o.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    const air = (o.gauntletJumpTicks || 0) > 0;
+    const { ch: gauntletCh2 } = getCharacterFootprintWH(mapData);
+    const crown = isGauntletCrownHeistMapPlay();
+    let advanceX = false;
+    let hitBack = false;
+    for (let i = 0; i < obstacles.length; i++) {
+      const ob = obstacles[i];
+      if (!ob) continue;
+      if (ob.kind === 'lane' && typeof ob.y === 'number' && ob.x === px && ob.y >= py && ob.y < py + gauntletCh2) {
+        if (air) advanceX = true;
+        else hitBack = true;
+      }
+      if (ob.kind === 'laser' && typeof ob.x === 'number' && ob.x === px) {
+        if (!gauntletLaserOverlapsPlayerRow(ob, py, h)) {
+          /* เลเซอร์ไม่ครอบแถวนี้ */
+        } else if (air) {
+          advanceX = true;
+        } else {
+          hitBack = true;
+        }
+      }
+    }
+    if (advanceX) {
+      px = Math.min(w - 2, px + 1);
+      o.gauntletJumpTicks = 0;
+      if (!crown) {
+        o.gauntletScore = (o.gauntletScore || 0) + 1;
+      }
+    } else if (hitBack) {
+      if (crown) {
+        if (px <= 0) {
+          o.gauntletEliminated = true;
+          o.gauntletScore = 0;
+        } else {
+          o.gauntletScore = Math.max(0, (o.gauntletScore || 0) - 10);
+          px = Math.max(0, px - 1);
+        }
+      } else {
+        px = Math.max(0, px - 1);
+      }
+    }
+    if ((o.gauntletJumpTicks || 0) > 0) o.gauntletJumpTicks--;
+    o.tx = px;
+    o.ty = py;
+  }
+
+  function applyGauntletPreviewBotsAfterSync() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const w = mapData.width || 20;
+    const h = mapData.height || 15;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id) || !o) return;
+      maybePreviewBotGauntletJump(o, gauntletObstacles, w, h);
+      applyGauntletPhysicsToPreviewBot(o, gauntletObstacles, w, h);
+    });
+  }
+
+  /** แจ้งเซิร์ฟเวอร์แถว y ที่มีคุณ+บอททดสอบ — lane spawn ใช้เฉพาะแถวที่มี peer; บอทไม่ใช่ peer */
+  function emitGauntletPreviewRowsToServer() {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'gauntlet') return;
+    if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) return;
+    const h = mapData.height || 15;
+    const ysSet = new Set();
+    const addY = (v) => {
+      const fy = Math.floor(Number(v));
+      if (Number.isFinite(fy) && fy >= 0 && fy < h) ysSet.add(fy);
+    };
+    addY(me.y);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) addY(o.y);
+    });
+    socket.emit('gauntlet-preview-rows', { ys: [...ysSet] });
+  }
+
+  /** ซ่อน overlay โหมดอื่นที่ค้างจาก embed / session ก่อน — กัน UI ซ้อนไม่ตรง mock */
+  function hideConflictingOverlaysForGauntletCrown() {
+    hideQuizCarryPregameOverlay();
+    quizCarryPregameActive = false;
+    const hideIds = [
+      'quiz-game-overlay',
+      'quiz-carry-mission-overlay',
+      'gauntlet-ended-overlay',
+      'quiz-battle-mcq-overlay',
+      'quiz-carry-embed-countdown',
+      'gauntlet-crown-countdown',
+      'quiz-carry-embed-q-strip',
+      'play-quiz-scoreboard',
+      'play-quiz-feedback',
+    ];
+    for (let i = 0; i < hideIds.length; i++) {
+      const el = document.getElementById(hideIds[i]);
+      if (el) el.classList.add('is-hidden');
+    }
+    const gcm = document.getElementById('gauntlet-crown-mission-overlay');
+    if (gcm) gcm.classList.add('is-hidden');
+  }
+
+  function gcmRankBadgeUrl(rank) {
+    const r = Math.floor(Number(rank)) || 99;
+    if (r === 1) return BASE + '/img/gauntlet-assets/result-1st.png';
+    if (r === 2) return BASE + '/img/gauntlet-assets/result-2nd.png';
+    if (r === 3) return BASE + '/img/gauntlet-assets/result-3rd.png';
+    return BASE + '/img/gauntlet-assets/result-txt-2.png';
+  }
+
+  function gauntletCrownPregameReadyNumerator() {
+    let n = quizCarryPregameBotCount();
+    quizCarryPregameHumanIds().forEach((id) => {
+      if (gauntletCrownLobbyReadyMap[id]) n++;
+    });
+    return n;
+  }
+
+  function gauntletCrownSyncGuestReadyIfNeeded() {
+    if (gauntletCrownPregamePhase !== 'howto') return;
+    if (myId == null || isMePlayHost()) return;
+    const sid = String(myId);
+    if (gauntletCrownLobbyReadyMap[sid]) return;
+    gauntletCrownLobbyReadyMap[sid] = true;
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-ready', { ready: true });
+  }
+
+  function updateGauntletCrownHowtoHud() {
+    const st = document.getElementById('gauntlet-crown-howto-status');
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn || !isGauntletCrownHeistMapPlay() || gauntletCrownPregamePhase !== 'howto') return;
+    const humans = quizCarryPregameHumanIds();
+    const tot = Math.max(1, quizCarryPregameTotalPlayers());
+    const num = gauntletCrownPregameReadyNumerator();
+    if (st) {
+      st.classList.remove('is-hidden');
+      st.textContent = 'Ready Status : ' + num + '/' + tot;
+    }
+    const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+    btn.classList.toggle('is-start-phase', humansReady);
+    btn.classList.toggle('is-read-only', !isMePlayHost());
+    btn.disabled = !isMePlayHost();
+    btn.setAttribute('aria-pressed', humansReady ? 'false' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'true' : 'false'));
+    btn.title = isMePlayHost()
+      ? (humansReady ? 'START' : ((myId && gauntletCrownLobbyReadyMap[String(myId)]) ? 'ยกเลิก READY' : 'READY'))
+      : (humansReady ? 'START (โฮสต์เท่านั้น)' : 'READY (โฮสต์เท่านั้น)');
+  }
+
+  function beginGauntletCrownCountdownThenRun() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'countdown';
+    const howto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (howto) howto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    const numEl = document.getElementById('gauntlet-crown-countdown-num');
+    const runFinish = () => {
+      if (cd) cd.classList.add('is-hidden');
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      if (socket && socket.connected) {
+        socket.emit('gauntlet-crown-begin-run', (res) => {
+          if (res && res.ok) gauntletCrownPregamePhase = 'live';
+        });
+      } else {
+        gauntletCrownPregamePhase = 'live';
+      }
+    };
+    if (!cd || !numEl) {
+      runFinish();
+      return;
+    }
+    cd.classList.remove('is-hidden');
+    let n = 3;
+    numEl.textContent = String(n);
+    const step = () => {
+      n--;
+      if (n > 0) {
+        numEl.textContent = String(n);
+        gauntletCrownCountdownTimer = setTimeout(step, 1000);
+      } else {
+        gauntletCrownCountdownTimer = null;
+        runFinish();
+      }
+    };
+    gauntletCrownCountdownTimer = setTimeout(step, 1000);
+  }
+
+  function showGauntletCrownHowtoOverlay() {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    hideConflictingOverlaysForGauntletCrown();
+    const cd = document.getElementById('gauntlet-crown-countdown');
+    if (cd) cd.classList.add('is-hidden');
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    gauntletCrownPregamePhase = 'howto';
+    const ov = document.getElementById('gauntlet-crown-howto-overlay');
+    if (!ov) return;
+    gauntletCrownHowtoVisible = true;
+    ov.classList.remove('is-hidden');
+    if (socket && socket.connected) socket.emit('gauntlet-crown-lobby-sync-request');
+    gauntletCrownSyncGuestReadyIfNeeded();
+    updateGauntletCrownHowtoHud();
+  }
+
+  /** Editor embed: quiz_carry / crown ใช้เกรด F = gameover — Jumper: ภาพจบใช้เฉพาะเมื่อไม่มีผู้รอด (0 คน) */
+  function gauntletCrownEmbedMissionAnyOk(mission) {
+    if (!mission) return false;
+    if (mission.uiSkin === 'jumper') {
+      const sc = Number(mission.survivorCount);
+      return Number.isFinite(sc) ? sc > 0 : (String(mission.grade || '').trim().toUpperCase().charAt(0) !== 'F');
+    }
+    const g = String(mission.grade || '').trim().toUpperCase().charAt(0);
+    return g !== 'F';
+  }
+
+  function gauntletCrownRankBonusLocal(rankOrdinal) {
+    if (rankOrdinal === 1) return 100;
+    if (rankOrdinal === 2) return 80;
+    if (rankOrdinal === 3) return 60;
+    return 0;
+  }
+
+  function gauntletCrownRollRewardCardLocal(grade) {
+    const r = Math.random();
+    if (grade === 'A') {
+      if (r < 0.3) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.8) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (grade === 'B') {
+      if (r < 0.2) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+      if (r < 0.5) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+      return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+    }
+    if (r < 0.2) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+
+  /**
+   * Editor embed + preview bots: รวมแถวอันดับกับบอท (สูงสุด 5 ช่อง) และคำนวณรวม/เฉลี่ย/เกรดให้สอดคล้องกับแถวที่โชว์
+   * — อันดับในช่องใช้ลำดับ 1..5 หลังเรียงคะแนน (เหมือนแนว quiz_carry mission row)
+   */
+  function gauntletCrownBuildDisplayMission(mission) {
+    if (!mission || !Array.isArray(mission.ranked)) return mission;
+    if (mission.uiSkin === 'jumper') return mission;
+    if (!(previewFillBots && isGauntletCrownHeistMapPlay() && others && typeof others.forEach === 'function')) return mission;
+
+    const seen = new Set();
+    const baseRows = [];
+    mission.ranked.forEach((r) => {
+      if (!r) return;
+      const sid = String(r.id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: r.id,
+        nickname: (r.nickname && String(r.nickname).trim()) ? String(r.nickname).trim() : 'ผู้เล่น',
+        characterId: r.characterId ?? null,
+        baseScore: r.eliminated ? 0 : Math.max(0, Number(r.baseScore) || 0),
+        eliminated: !!r.eliminated,
+      });
+    });
+    others.forEach((o, id) => {
+      if (!o || !isPreviewBotId(id)) return;
+      const sid = String(id);
+      if (seen.has(sid)) return;
+      seen.add(sid);
+      baseRows.push({
+        id: id,
+        nickname: (o.nickname && String(o.nickname).trim()) ? String(o.nickname).trim() : sid,
+        characterId: o.characterId ?? null,
+        baseScore: o.gauntletEliminated ? 0 : Math.max(0, Number(o.gauntletScore) | 0),
+        eliminated: !!o.gauntletEliminated,
+      });
+    });
+
+    baseRows.sort((a, b) => {
+      if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+      const nick = String(a.nickname).localeCompare(String(b.nickname), 'th');
+      if (nick !== 0) return nick;
+      return String(a.id).localeCompare(String(b.id));
+    });
+    const top = baseRows.slice(0, 5);
+    const ranked = top.map((row, idx) => {
+      const pos = idx + 1;
+      const rankBonus = gauntletCrownRankBonusLocal(pos);
+      const rankLabel = pos === 1 ? '1st' : pos === 2 ? '2nd' : pos === 3 ? '3rd' : String(pos);
+      const finalScore = row.baseScore + rankBonus;
+      return {
+        id: row.id,
+        nickname: row.nickname,
+        characterId: row.characterId,
+        baseScore: row.baseScore,
+        eliminated: row.eliminated,
+        rank: pos,
+        rankLabel: rankLabel,
+        rankBonus: rankBonus,
+        finalScore: finalScore,
+      };
+    });
+
+    const totalSum = ranked.reduce(function (s, r) { return s + r.finalScore; }, 0);
+    const n = ranked.length || 1;
+    const averageScore = Math.floor(totalSum / n);
+    const grade = averageScore >= 80 ? 'A' : averageScore >= 60 ? 'B' : 'C';
+    const rewardCard = gauntletCrownRollRewardCardLocal(grade);
+    return {
+      ranked: ranked,
+      totalSum: totalSum,
+      averageScore: averageScore,
+      grade: grade,
+      rewardCard: rewardCard,
+      totalParts: ranked.map(function (r) { return r.finalScore; }),
+    };
+  }
+
+  function showGauntletCrownMissionOverlay(mission) {
+    const ov = document.getElementById('gauntlet-crown-mission-overlay');
+    const rowEl = document.getElementById('gcm-rank-row');
+    const totalEl = document.getElementById('gcm-total');
+    const gradeEl = document.getElementById('gcm-grade');
+    const bonusEl = document.getElementById('gcm-bonus');
+    const btn = document.getElementById('btn-gcm-done');
+    if (!ov || !rowEl || !mission || !Array.isArray(mission.ranked)) return;
+    let disp = gauntletCrownBuildDisplayMission(mission);
+    if (mission.uiSkin === 'jumper') {
+      disp = jumpSurviveMergePreviewBotsMission(disp) || disp;
+    }
+    if (!disp || !Array.isArray(disp.ranked)) return;
+    rowEl.innerHTML = '';
+    disp.ranked.forEach((r) => {
+      const cell = document.createElement('div');
+      cell.className = 'gcm-cell';
+      const tag = document.createElement('div');
+      tag.className = 'gcm-rank-tag';
+      const rk = Math.floor(Number(r.rank)) || 0;
+      if (rk >= 1 && rk <= 3) {
+        const tagImg = document.createElement('img');
+        tagImg.src = gcmRankBadgeUrl(rk);
+        tagImg.alt = '[' + String(r.rankLabel || rk) + ']';
+        tagImg.style.maxWidth = '100%';
+        tagImg.style.height = 'auto';
+        tag.appendChild(tagImg);
+      } else {
+        tag.textContent = '[' + String(r.rankLabel || rk) + ']';
+      }
+      const frame = document.createElement('div');
+      frame.className = 'gcm-frame';
+      const img = document.createElement('img');
+      img.className = 'gcm-av';
+      img.alt = '';
+      const cid = r.characterId ? String(r.characterId) : '';
+      if (cid) {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) img.src = im.src;
+      } else {
+        img.src = defaultAvatarImg.src;
+      }
+      img.onerror = function () {
+        this.onerror = null;
+        this.src = defaultAvatarImg.src;
+      };
+      frame.appendChild(img);
+      if (r.eliminated) {
+        const st = document.createElement('img');
+        st.className = 'gcm-stamp';
+        const jSkin = mission && mission.uiSkin === 'jumper';
+        st.src = jSkin ? jumperAssetUrl('stamp-sacrifice.png') : (BASE + '/img/gauntlet-assets/result-Lose_stamp.png');
+        st.alt = jSkin ? 'ผู้เสียสละ' : 'เสียชีวิต';
+        st.onerror = function () {
+          this.onerror = null;
+          this.src = BASE + '/img/gauntlet-assets/result-Lose_stamp.png';
+          this.alt = 'เสียชีวิต';
+        };
+        frame.appendChild(st);
+      }
+      const nick = document.createElement('div');
+      nick.className = 'gcm-nick';
+      nick.textContent = r.nickname || '—';
+      const sc = document.createElement('div');
+      sc.className = 'gcm-sc';
+      const jumpPlain = mission && mission.uiSkin === 'jumper';
+      const botScorePlain = previewFillBots && isGauntletCrownHeistMapPlay() && isPreviewBotId(r.id);
+      sc.textContent = (jumpPlain || botScorePlain)
+        ? String(Math.max(0, Number(r.baseScore) || 0))
+        : String(r.baseScore || 0) + '(+' + String(r.rankBonus || 0) + ')';
+      cell.appendChild(tag);
+      cell.appendChild(frame);
+      cell.appendChild(nick);
+      cell.appendChild(sc);
+      rowEl.appendChild(cell);
+    });
+    if (totalEl) {
+      const parts = (disp.totalParts || []).map((n) => String(Math.max(0, Number(n) || 0)));
+      const sum = Math.max(0, Number(disp.totalSum) || 0);
+      const avg = Math.max(0, Math.floor(Number(disp.averageScore) || 0));
+      const jumperSkin = mission && mission.uiSkin === 'jumper';
+      if (jumperSkin) {
+        const sc = Math.max(0, Math.floor(Number(disp.survivorCount) || 0));
+        const pc = Math.max(0, Math.floor(Number(disp.participantCount) || 0));
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · ผู้รอด ' + sc + '/' + pc + ' → เกรด';
+      } else {
+        totalEl.innerHTML = 'คะแนนรวม <span class="gcm-total-nums">(' + parts.join('+') + ') = ' + sum + '</span> · เฉลี่ย ' + avg + ' → เกรด';
+      }
+    }
+    if (gradeEl) {
+      const g = String(disp.grade || 'C').toUpperCase().charAt(0);
+      gradeEl.textContent = g;
+      gradeEl.className = 'gcm-grade gcm-grade--' + g.toLowerCase();
+    }
+    if (bonusEl) {
+      bonusEl.innerHTML = '';
+      const gLetter = String(disp.grade || 'C').toUpperCase().charAt(0);
+      const missionOk = gLetter !== 'F';
+      if (missionOk) {
+        const row = document.createElement('div');
+        row.style.display = 'flex';
+        row.style.alignItems = 'center';
+        row.style.gap = '8px';
+        const chk = document.createElement('img');
+        chk.src = BASE + '/img/gauntlet-assets/result-check.png';
+        chk.alt = '';
+        chk.width = 26;
+        chk.height = 26;
+        const sp = document.createElement('span');
+        sp.style.color = '#9ece6a';
+        sp.style.fontWeight = '700';
+        sp.textContent = 'ภารกิจสำเร็จ';
+        row.appendChild(chk);
+        row.appendChild(sp);
+        bonusEl.appendChild(row);
+      }
+      const rc = disp.rewardCard;
+      if (missionOk && rc && rc.th) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.innerHTML = '<strong>' + String(rc.th) + '</strong><span>' + String(rc.en || '') + '</span>';
+        bonusEl.appendChild(pl);
+      } else if (!missionOk) {
+        const pl = document.createElement('div');
+        pl.className = 'gcm-plaque';
+        pl.style.borderColor = 'rgba(148, 153, 168, 0.45)';
+        pl.style.opacity = '0.95';
+        pl.innerHTML = '<strong>ไม่ได้รับการ์ด</strong><span>เกรด ' + gLetter + ' · ภารกิจไม่ผ่านเกณฑ์</span>';
+        bonusEl.appendChild(pl);
+      }
+    }
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      ov.classList.add('is-hidden');
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = function () {
+        if (previewMode && editorEmbedReturn) {
+          ov.classList.add('is-hidden');
+          showQuizCarryTimeupOnDeskLayer(function () { return gauntletCrownEmbedMissionAnyOk(disp); });
+        } else {
+          goLobby();
+        }
+      };
+    }
+  }
+
+  function isLobby() { return mapData && mapData.gameType === 'lobby'; }
+  function isQuiz() { return mapData && mapData.gameType === 'quiz'; }
+  function getLane(y) {
+    if (!mapData || !mapData.lanes) return null;
+    const lane = mapData.lanes.find(l => l.y === y);
+    return lane || (mapData.lanes[y] != null ? mapData.lanes[y] : null);
+  }
+  function getVehiclePositions(lane, width, timeMs) {
+    if (!lane || (lane.type !== 'road' && lane.type !== 'water')) return [];
+    const speed = (lane.speed != null ? lane.speed : 1) * 0.05;
+    const dir = lane.dir === -1 ? -1 : 1;
+    const spacing = lane.spacing != null ? lane.spacing : (lane.type === 'road' ? 3 : 2.5);
+    const period = width + 2;
+    const count = Math.max(2, Math.floor(period / spacing));
+    const positions = [];
+    for (let i = 0; i < count; i++) {
+      const p = i * spacing + (timeMs * speed * dir) / 60;
+      const pNorm = ((p % period) + period) % period;
+      const vx = pNorm - 1;
+      positions.push(Math.max(-1, Math.min(width, vx)));
+    }
+    return positions;
+  }
+  function checkFroggerCollision() {
+    const fy = Math.floor(me.y);
+    const lane = getLane(fy);
+    if (!lane) return false;
+    if (lane.type === 'road') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.1) return true;
+      }
+    }
+    if (lane.type === 'water') {
+      const positions = getVehiclePositions(lane, mapData.width, Date.now());
+      let onLog = false;
+      for (let i = 0; i < positions.length; i++) {
+        if (Math.abs(positions[i] - me.x) < 1.2) { onLog = true; break; }
+      }
+      if (!onLog) return true;
+    }
+    return false;
+  }
+  function respawnFrogger() {
+    const sp = mapData.spawn || { x: 1, y: mapData.height - 1 };
+    me.x = sp.x; me.y = sp.y;
+    socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+  }
+
+  /** รองรับ x/y เป็น string จาก Socket — ถ้าเช็คแค่ typeof number จะร่วงไป mapData.spawn ทุกครั้ง (จุดเกิดไม่สุ่ม) */
+  function peerXYFromJoin(peer, spawnFb) {
+    const sx = Number(spawnFb && spawnFb.x);
+    const sy = Number(spawnFb && spawnFb.y);
+    const defX = Number.isFinite(sx) ? sx : 1;
+    const defY = Number.isFinite(sy) ? sy : 1;
+    if (!peer) return { x: defX, y: defY };
+    const x = Number(peer.x);
+    const y = Number(peer.y);
+    if (Number.isFinite(x) && Number.isFinite(y)) return { x, y };
+    return { x: defX, y: defY };
+  }
+
+  /** Hub = 0/1 · กริดตัวเลือก = 0 หรือเลข 1..16 (ห้ามบังคับ === 1 เหมือน hub — เลข 2–16จะหาย) */
+  function normalizeQuizCarryLayersInPlay(md) {
+    if (!md || md.gameType !== 'quiz_carry') return;
+    const w = md.width || 20, h = md.height || 15;
+    const maxOpt = QUIZ_CARRY_MAX_OPTION_SLOTS;
+    const srcHub = md.quizCarryHubArea || [];
+    const hubRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcHub[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      hubRows.push(row);
+    }
+    md.quizCarryHubArea = hubRows;
+    const srcOpt = md.quizCarryOptionArea || [];
+    const optRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcOpt[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= maxOpt ? Math.floor(n) : 0);
+      }
+      optRows.push(row);
+    }
+    md.quizCarryOptionArea = optRows;
+    const srcCd = md.carryEmbedCountdownArea || [];
+    const cdRows = [];
+    for (let y = 0; y < h; y++) {
+      const r = srcCd[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        row.push(Number(v) === 1 ? 1 : 0);
+      }
+      cdRows.push(row);
+    }
+    md.carryEmbedCountdownArea = cdRows;
+  }
+
+  /** โดม = ช่องติดกัน (4 ทิศ) ต่อ 1 ข้อ · comp id เรียงตามการค้นพบบนแมป */
+  function normalizeQuizBattleDomeInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattleDomeArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattleDomeArea = grid;
+    const comp = Array(h).fill(0).map(() => Array(w).fill(0));
+    let nextId = 0;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (grid[y][x] !== 1 || comp[y][x]) continue;
+        nextId++;
+        const stack = [[x, y]];
+        comp[y][x] = nextId;
+        while (stack.length) {
+          const c = stack.pop();
+          const cx = c[0], cy = c[1];
+          for (let i = 0; i < 4; i++) {
+            const dx = (i === 0 ? 1 : i === 1 ? -1 : 0);
+            const dy = (i === 2 ? 1 : i === 3 ? -1 : 0);
+            const nx = cx + dx, ny = cy + dy;
+            if (nx < 0 || ny < 0 || nx >= w || ny >= h) continue;
+            if (grid[ny][nx] !== 1 || comp[ny][nx]) continue;
+            comp[ny][nx] = nextId;
+            stack.push([nx, ny]);
+          }
+        }
+      }
+    }
+    md.quizBattleDomeComp = comp;
+  }
+
+  /** เส้นทาง Quiz Battle — วาดอย่างน้อย 1 ช่องแล้วจะเดินได้เฉพาะบนเส้นทาง (เปลี่ยนแค่รูปพื้นหลังได้) */
+  function normalizeQuizBattlePathInPlay(md) {
+    if (!md || md.gameType !== 'quiz_battle') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.quizBattlePathArea || [];
+    const grid = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      grid.push(row);
+    }
+    md.quizBattlePathArea = grid;
+  }
+
+  function quizBattlePathModeActive(md) {
+    if (!md || md.gameType !== 'quiz_battle' || !md.quizBattlePathArea) return false;
+    const g = md.quizBattlePathArea;
+    for (let y = 0; y < g.length; y++) {
+      const row = g[y];
+      if (!row) continue;
+      for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+    }
+    return false;
+  }
+
+  function quizBattleFootprintFullyOnPath(md, px, py) {
+    if (!md || !quizBattlePathModeActive(md)) return true;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return false;
+    const tiles = quizTilesFootprintPlay(px, py);
+    if (tiles.size === 0) return false;
+    const g = md.quizBattlePathArea;
+    for (const k of tiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (!g[ty] || g[ty][tx] !== 1) return false;
+    }
+    return true;
+  }
+
+  /** สแน็ปบนเลน — เช็คแค่กำแพง + อยู่บน path (ให้ตรงกับ server) ไม่ใช้ blockPlayer/ผู้เล่นคนอื่น เพราะจะทำให้หาจุดสแน็ปไม่ได้แล้วค้างนอกเลน */
+  function quizBattleSnapTargetValidPlay(x, y) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    for (const k of quizTilesWallCollisionFootprintPlay(x, y)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (quizBattlePathModeActive(mapData) && !quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    return true;
+  }
+
+  function snapPositionOntoQuizBattlePathIfNeeded(px, py) {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return { x: px, y: py };
+    if (quizBattleSnapTargetValidPlay(px, py)) return { x: px, y: py };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const g = mapData.quizBattlePathArea;
+    let bestX = null, bestY = null, bestD = Infinity;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        const nx = tx + 0.01;
+        const ny = ty + 0.01;
+        if (!quizBattleSnapTargetValidPlay(nx, ny)) continue;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    /* footprint ใหญ่กว่าเลน (เช่น 2×2 บนทางแคบ 1 ช่อง): หาช่อง path ใกล้สุดที่เดินได้อย่างน้อยที่เซ็นเตอร์ — ดีกว่าปล่อยค้างนอกเลน */
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = 0; tx < w; tx++) {
+        if (!g[ty] || g[ty][tx] !== 1) continue;
+        if (!spawnTileWalkablePlay(mapData, tx, ty)) continue;
+        const nx = tx + 0.5;
+        const ny = ty + 0.5;
+        const d = Math.abs(nx - px) + Math.abs(ny - py);
+        if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+      }
+    }
+    if (bestX != null) return { x: bestX, y: bestY };
+    return { x: px, y: py };
+  }
+
+  /** บังคับให้ผู้เล่นอยู่บนเลน — เรียกก่อน return กลาง tick (แชท / path หมด) เพราะเดิมข้ามบล็อกสแน็ปท้าย tick */
+  function enforceQuizBattleLaneOnMePlay() {
+    if (!mapData || !isQuizBattle() || !quizBattlePathModeActive(mapData)) return;
+    if (quizBattleSnapTargetValidPlay(me.x, me.y)) return;
+    const snapped = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+    me.x = snapped.x;
+    me.y = snapped.y;
+  }
+
+  function hideQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (ov) {
+      ov.classList.add('is-hidden');
+      ov.setAttribute('aria-hidden', 'true');
+    }
+  }
+
+  function flashQuizBattleFeedback(text, ok) {
+    const el = document.getElementById('play-quiz-feedback');
+    if (!el) return;
+    el.textContent = text || '';
+    el.classList.remove('is-hidden', 'play-quiz-feedback-ok', 'play-quiz-feedback-bad');
+    el.classList.add(ok ? 'play-quiz-feedback-ok' : 'play-quiz-feedback-bad');
+    if (typeof window.__quizBattleFbT === 'number') clearTimeout(window.__quizBattleFbT);
+    window.__quizBattleFbT = setTimeout(() => { el.classList.add('is-hidden'); }, 1800);
+  }
+
+  function getQuizBattleDomeCompIdsUnderFootprint(px, py) {
+    if (!mapData || !isQuizBattle()) return [];
+    const comp = mapData.quizBattleDomeComp;
+    const grid = mapData.quizBattleDomeArea;
+    if (!comp || !grid) return [];
+    const ids = [];
+    const seen = Object.create(null);
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      const cid = comp[ty] && comp[ty][tx];
+      if (grid[ty] && grid[ty][tx] === 1 && cid > 0 && !seen[cid]) {
+        seen[cid] = 1;
+        ids.push(cid);
+      }
+    }
+    return ids;
+  }
+
+  function getPrimaryQuizBattleDomeCompAt(px, py) {
+    const arr = getQuizBattleDomeCompIdsUnderFootprint(px, py);
+    if (!arr.length) return null;
+    return Math.min.apply(null, arr);
+  }
+
+  function showQuizBattleMcqModal(q) {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    const textEl = document.getElementById('quiz-battle-mcq-text');
+    if (!ov || !textEl || !q) return;
+    textEl.textContent = q.text || '';
+    const labels = ['A', 'B', 'C'];
+    for (let i = 0; i < 3; i++) {
+      const btn = ov.querySelector('.quiz-battle-choice[data-idx="' + i + '"]');
+      if (btn) {
+        const ch = (q.choices && q.choices[i]) ? String(q.choices[i]) : '';
+        btn.textContent = labels[i] + (ch ? (': ' + ch.slice(0, 96)) : '');
+      }
+    }
+    ov.classList.remove('is-hidden');
+    ov.setAttribute('aria-hidden', 'false');
+  }
+
+  function trySubmitQuizBattleChoice(idx) {
+    if (quizBattleModalCompId == null || !mapData || !isQuizBattle()) return;
+    const compId = quizBattleModalCompId;
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถาม — ตั้ง battleQuizMcq ใน Admin → Quiz Battle', false);
+      quizBattleModalCompId = null;
+      hideQuizBattleMcqModal();
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    const ok = Number(q.correctIndex) === Number(idx);
+    if (ok) {
+      quizBattleAnsweredComps.add(compId);
+      if (myId != null) {
+        if (!playLiveQuizScores) playLiveQuizScores = {};
+        playLiveQuizScores[myId] = (playLiveQuizScores[myId] || 0) + 1;
+        renderPlayQuizScoreboard(playLiveQuizScores);
+      }
+      /* ส่งให้ server เก็บคะแนน (authoritative) แล้ว broadcast อันดับให้ทุกคน — แบบ ZEP */
+      try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-solve', { compId }); } catch (e) { /* ignore */ }
+      updateQuizBattleProgressHud();
+      flashQuizBattleFeedback('ถูกต้อง · +1', true);
+    } else {
+      flashQuizBattleFeedback('ยังไม่ถูก — ลองใหม่ (กด E อีกครั้ง)', false);
+    }
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+  }
+
+  function tryOpenQuizBattleFromKey() {
+    if (!isQuizBattle() || !mapData || myId == null) return;
+    const compId = getPrimaryQuizBattleDomeCompAt(me.x, me.y);
+    if (compId == null) {
+      flashQuizBattleFeedback('ยังไม่ยืนบนโดมคำถาม', false);
+      return;
+    }
+    if (quizBattleAnsweredComps.has(compId)) {
+      flashQuizBattleFeedback('ตอบโดมนี้ถูกแล้ว', false);
+      return;
+    }
+    const pool = quizBattleMcqPool;
+    if (!pool.length) {
+      flashQuizBattleFeedback('ยังไม่มีคำถามในระบบ (Admin → Quiz Battle)', false);
+      return;
+    }
+    const q = pool[(compId - 1) % pool.length];
+    if (!q) return;
+    quizBattleModalCompId = compId;
+    showQuizBattleMcqModal(q);
+  }
+
+  function pushSanitizedBattleMcqFromPayload(s) {
+    if (!s || !Array.isArray(s.battleQuizMcq)) return 0;
+    let n = 0;
+    for (let i = 0; i < s.battleQuizMcq.length; i++) {
+      const raw = s.battleQuizMcq[i];
+      if (!raw || !String(raw.text || '').trim()) continue;
+      const ch = Array.isArray(raw.choices) ? raw.choices : [];
+      if (ch.length !== 3) continue;
+      const a = String(ch[0] || '').trim();
+      const b = String(ch[1] || '').trim();
+      const c = String(ch[2] || '').trim();
+      if (!a || !b || !c) continue;
+      let ci = Number(raw.correctIndex);
+      if (!Number.isFinite(ci)) ci = 0;
+      ci = Math.max(0, Math.min(2, Math.floor(ci)));
+      quizBattleMcqPool.push({
+        text: String(raw.text).trim(),
+        choices: [a, b, c],
+        correctIndex: ci,
+      });
+      n++;
+    }
+    return n;
+  }
+
+  /**
+   * โหลดชุดข้อ A/B/C — ลอง Node ก่อน แล้ว fallback PHP อ่านจากดิสก์ (กรณี nginx ไม่ส่ง /api/quiz-settings ถึง Node)
+   */
+  async function loadQuizBattleMcqPool() {
+    quizBattleMcqPool = [];
+    const bust = '_=' + Date.now();
+    const tryUrls = [
+      BASE + '/api/quiz-settings?' + bust,
+      BASE + '/api-quiz-battle-mcq.php?' + bust,
+    ];
+    for (let u = 0; u < tryUrls.length; u++) {
+      try {
+        const r = await fetch(tryUrls[u], { cache: 'no-store' });
+        if (!r.ok) continue;
+        const s = await r.json();
+        if (pushSanitizedBattleMcqFromPayload(s) > 0) break;
+      } catch (e) { /* next url */ }
+    }
+  }
+
+  function resetQuizBattlePlayState() {
+    quizBattleMcqPool = [];
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    hideQuizBattleMcqModal();
+    hideQuizBattleProgressHud();
+  }
+
+  /* ===== Quiz Battle ฉากเดิน (ZEP) — Progress + Ranking sync จาก server ===== */
+  let quizBattleScoresBound = false;
+  function ensureQuizBattleScoresListener() {
+    if (quizBattleScoresBound || typeof socket === 'undefined' || !socket) return;
+    quizBattleScoresBound = true;
+    socket.on('quizbattle-scores', (data) => {
+      if (!data || typeof data.scores !== 'object' || !isQuizBattle()) return;
+      const sc = data.scores || {};
+      if (!playLiveQuizScores) playLiveQuizScores = {};
+      /* server เป็นเจ้าของคะแนน (จำนวนโดมที่ปลดได้) — sync ทับของทุกคน เพื่ออันดับตรงกันแบบ ZEP */
+      Object.keys(sc).forEach((id) => { playLiveQuizScores[id] = sc[id]; });
+      renderPlayQuizScoreboard(playLiveQuizScores);
+      updateQuizBattleProgressHud();
+    });
+  }
+
+  function quizBattleTotalDomes() {
+    if (!mapData || !isQuizBattle()) return 0;
+    const comp = mapData.quizBattleDomeComp;
+    if (!comp) return 0;
+    let mx = 0;
+    for (let y = 0; y < comp.length; y++) {
+      const row = comp[y] || [];
+      for (let x = 0; x < row.length; x++) if (row[x] > mx) mx = row[x];
+    }
+    return mx;
+  }
+
+  function updateQuizBattleProgressHud() {
+    if (!isQuizBattle()) return;
+    let el = document.getElementById('quiz-battle-progress-hud');
+    if (!el) {
+      el = document.createElement('div');
+      el.id = 'quiz-battle-progress-hud';
+      el.style.cssText = 'position:fixed;top:12px;left:12px;z-index:60;background:rgba(8,12,28,0.82);color:#fff;font-family:Kanit,Sarabun,system-ui,sans-serif;font-weight:700;padding:8px 18px;border-radius:999px;border:1px solid rgba(255,255,255,0.2);font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,0.35);pointer-events:none';
+      document.body.appendChild(el);
+    }
+    const total = quizBattleTotalDomes();
+    const mine = (myId != null && playLiveQuizScores && playLiveQuizScores[myId] != null)
+      ? playLiveQuizScores[myId]
+      : (quizBattleAnsweredComps ? quizBattleAnsweredComps.size : 0);
+    el.textContent = 'Progress ' + mine + '/' + total + (total > 0 && mine >= total ? ' ✓' : '');
+    el.style.color = (total > 0 && mine >= total) ? '#34d399' : '#fff';
+  }
+
+  function hideQuizBattleProgressHud() {
+    const el = document.getElementById('quiz-battle-progress-hud');
+    if (el) el.remove();
+  }
+
+  function setupPlayQuizBattleUi() {
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    /* ทดสอบจากเอดิเตอร์: อย่าเปิดแผงคำถามเต็มจอล่าง — บังมองเห็นบอท/แผนที่ (overlay ยังอัปเดตข้อความไว้ถ้าเปิด preview แบบไม่ embed) */
+    if (ov) {
+      if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+      else ov.classList.remove('is-hidden');
+    }
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    if (phaseEl) phaseEl.textContent = 'Quiz Battle';
+    const qEl = document.getElementById('quiz-game-question');
+    if (qEl) qEl.textContent = 'เดินทับโดม (สีฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C';
+    const tEl = document.getElementById('quiz-game-timer');
+    if (tEl) tEl.textContent = '';
+    const leg = document.getElementById('quiz-play-legend');
+    if (leg) {
+      leg.textContent = quizBattlePathModeActive(mapData)
+        ? 'โหมดเส้นทาง: เดินได้เฉพาะช่องเส้นทาง (ม่วงบนแผนที่) — วางโดมบนเส้นทาง · ไม่วาดเส้นทางใน Editor = เดินอิสระ · เปลี่ยนรูปพื้นหลังได้ทีหลัง'
+        : 'คำถามจาก Admin → Quiz Battle (battleQuizMcq) · ช่องโดมติดกัน = 1 ข้อ · ถูกแล้วได้ +1 ต่อโดม';
+    }
+    quizBattleAnsweredComps = new Set();
+    quizBattleModalCompId = null;
+    quizBattleMcqPool = [];
+    hideQuizBattleMcqModal();
+    playLiveQuizScores = {};
+    if (myId != null) playLiveQuizScores[myId] = 0;
+    others.forEach((_, id) => { playLiveQuizScores[id] = 0; });
+    renderPlayQuizScoreboard(playLiveQuizScores);
+    /* sync คะแนน/อันดับข้ามผู้เล่นจาก server (ZEP) + โชว์ Progress N/total */
+    ensureQuizBattleScoresListener();
+    updateQuizBattleProgressHud();
+    try { if (typeof socket !== 'undefined' && socket) socket.emit('quizbattle-hello', (res) => {
+      if (res && res.scores && typeof res.scores === 'object') {
+        Object.keys(res.scores).forEach((id) => { playLiveQuizScores[id] = res.scores[id]; });
+        renderPlayQuizScoreboard(playLiveQuizScores);
+        updateQuizBattleProgressHud();
+      }
+    }); } catch (e) { /* ignore */ }
+    loadQuizBattleMcqPool().then(() => {
+      const q2 = document.getElementById('quiz-game-question');
+      if (!q2) return;
+      if (!quizBattleMcqPool.length) {
+        q2.textContent = 'ยังไม่มีคำถาม — ไปที่ Admin แท็บ Quiz Battle แล้วบันทึกข้อ A/B/C (ครบคำถาม + A + B + C) · หรือเช็คว่าเซิร์ฟเวอร์เกม (Node) รันอยู่ · ลองรีเฟรชแบบ hard refresh (Ctrl+F5)';
+      } else {
+        const q0 = quizBattleMcqPool[0];
+        const snippet = q0 && q0.text ? String(q0.text).trim().slice(0, 100) : '';
+        const more = q0 && q0.text && String(q0.text).trim().length > 100 ? '…' : '';
+        q2.textContent = snippet
+          ? ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ · ตัวอย่าง: 「' + snippet + more + '」\nเข้าโดมสีฟ้า (ขอบแดง) แล้วกด E เพื่อเลือก A / B / C')
+          : ('โหลดคำถามแล้ว ' + quizBattleMcqPool.length + ' ข้อ — เดินเข้าโดม (ฟ้า–ขอบแดง) แล้วกด E เพื่อตอบ A / B / C');
+      }
+      const ov2 = document.getElementById('quiz-game-overlay');
+      if (ov2 && previewMode && editorEmbedReturn) ov2.classList.add('is-hidden');
+    });
+  }
+
+  function normalizeJumpSurvivePlatformAreaInPlay(md) {
+    if (!md || md.gameType !== 'jump_survive') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.jumpSurvivePlatformArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      rows.push(row);
+    }
+    md.jumpSurvivePlatformArea = rows;
+  }
+
+  function normalizeShooterSpawnSlotsInPlay(md) {
+    if (!md || md.gameType !== 'space_shooter') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.shooterSpawnSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.shooterSpawnSlots = rows;
+  }
+
+  function getShooterSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.shooterSpawnSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.shooterSpawnSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function buildSpaceShooterParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function applySpaceShooterSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    normalizeShooterSpawnSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const n = refs.length || 1;
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getShooterSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        cx = ((idx + 1) / (n + 1)) * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.5) * ts);
+      }
+      cx = Math.max(ts * 0.5, Math.min(mw - ts * 0.5, cx));
+      cy = clampSpaceShooterWorldCy(cy, mh);
+      ent.spaceShooterCx = cx;
+      ent.spaceShooterCy = cy;
+      if (typeof ent.spaceShooterScore !== 'number' || !Number.isFinite(ent.spaceShooterScore)) ent.spaceShooterScore = 0;
+      ent.x = cx / ts - cw * 0.5;
+      ent.y = cy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function spaceShooterTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.spaceShooterTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    const g = Number(playSpaceShooterMissionTimeSec);
+    if (Number.isFinite(g) && g > 0 && g < 7200) return Math.floor(g);
+    return 90;
+  }
+
+  function spaceShooterRemainingSecPlay() {
+    const lim = spaceShooterTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - spaceShooterSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function endSpaceShooterTimeUp() {
+    if (spaceShooterGameEnded || !mapData || mapData.gameType !== 'space_shooter') return;
+    spaceShooterGameEnded = true;
+    spaceShooterBullets = [];
+    spaceShooterAsteroids = [];
+    spaceShooterSpawnAccMs = 0;
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) titleEl.textContent = 'หมดเวลา · Time up';
+    msgEl.textContent = 'ยิงยานอวกาศจบแล้ว · SPACE SHOOTER finished — อันดับจากคะแนนยิงหิน';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.spaceShooterScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.spaceShooterScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function syncSpaceShooterFootFromShipCenter(ent) {
+    if (!ent || !mapData || ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.spaceShooterCx / ts - cw * 0.5;
+    ent.y = ent.spaceShooterCy / ts - ch * 0.92;
+  }
+
+  /** จำกัดกลางยานแนวตั้งให้อยู่แค่ครึ่งล่างของแมพ (ไม่ขึ้นเกินกึ่งกลางความสูง) */
+  function clampSpaceShooterWorldCy(cy, mhPx) {
+    if (!Number.isFinite(cy) || !Number.isFinite(mhPx) || mhPx <= 0) return cy;
+    const edge = 20;
+    const lo = mhPx * 0.5;
+    const hi = Math.max(lo + 4, mhPx - edge);
+    return Math.max(lo, Math.min(hi, cy));
+  }
+
+  function stepSpaceShooterPreviewBots(dt) {
+    if (spaceShooterGameEnded || !previewFillBots || !mapData || mapData.gameType !== 'space_shooter') return;
+    const ts = tileSize;
+    const mw = (mapData.width || 20) * ts;
+    const mh = (mapData.height || 15) * ts;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.spaceShooterCx == null) return;
+      let nearest = null, nd = 1e9;
+      for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+        const a = spaceShooterAsteroids[i];
+        if (!a) continue;
+        const d = Math.abs(a.x - o.spaceShooterCx) + Math.abs(a.y - o.spaceShooterCy) * 0.15;
+        if (d < nd) { nd = d; nearest = a; }
+      }
+      let vx = 0;
+      if (nearest) vx = nearest.x > o.spaceShooterCx ? 1 : nearest.x < o.spaceShooterCx ? -1 : 0;
+      else vx = Math.sin(performance.now() / 900 + bid.length) > 0 ? 1 : -1;
+      let vy = 0;
+      if (nearest && Math.abs(nearest.y - o.spaceShooterCy) > ts * 0.25) {
+        vy = nearest.y > o.spaceShooterCy ? 1 : -1;
+      } else if (!nearest) {
+        vy = Math.sin(performance.now() / 700 + bid.charCodeAt(0)) > 0 ? 1 : -1;
+      }
+      const spd = (o.botTier === 'sharp' ? 195 : o.botTier === 'weak' ? 115 : 155);
+      o.spaceShooterCx = Math.max(18, Math.min(mw - 18, o.spaceShooterCx + vx * spd * dt));
+      o.spaceShooterCy = clampSpaceShooterWorldCy(o.spaceShooterCy + vy * spd * 0.7 * dt, mh);
+      syncSpaceShooterFootFromShipCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.spaceShooterBotFireCd !== 'number') o.spaceShooterBotFireCd = 0;
+      o.spaceShooterBotFireCd -= dt;
+      if (o.spaceShooterBotFireCd <= 0 && nearest && nd < ts * 5) {
+        o.spaceShooterBotFireCd = o.botTier === 'sharp' ? 0.22 : o.botTier === 'weak' ? 0.48 : 0.34;
+        spaceShooterBullets.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 16, vy: -500, ownerId: bid });
+      }
+    });
+  }
+
+  function spaceShooterTickFrame() {
+    if (!mapData || mapData.gameType !== 'space_shooter') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const now = performance.now();
+    const dt = Math.min(0.055, spaceShooterLastTickMs ? (now - spaceShooterLastTickMs) / 1000 : 0.016);
+    spaceShooterLastTickMs = now;
+
+    if (spaceShooterGameEnded) {
+      const wallClock = Date.now();
+      for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+        if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+      }
+      return;
+    }
+    const remSec = spaceShooterRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endSpaceShooterTimeUp();
+      return;
+    }
+
+    const interval = Math.max(320, Number(mapData.spaceShooterAsteroidIntervalMs) || 1040);
+    spaceShooterSpawnAccMs += dt * 1000;
+    while (spaceShooterSpawnAccMs >= interval) {
+      spaceShooterSpawnAccMs -= interval;
+      spaceShooterAsteroids.push({
+        x: 36 + Math.random() * (mw - 72),
+        y: -45 - Math.random() * 90,
+        r: 13 + Math.random() * 17,
+        vy: 58 + Math.random() * 62,
+        hp: 1,
+      });
+    }
+
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.28;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.28;
+      o.spaceShooterCx = (o.x + cw * 0.5) * ts;
+      o.spaceShooterCy = clampSpaceShooterWorldCy((o.y + ch * 0.92) * ts, mh);
+    });
+
+    let vx = 0;
+    let vy = 0;
+    if (!isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) vx -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) vx += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) vy -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) vy += 1;
+    }
+    const moveSpd = 280;
+    if (me.spaceShooterCx != null) {
+      me.spaceShooterCx = Math.max(18, Math.min(mw - 18, me.spaceShooterCx + vx * moveSpd * dt));
+    }
+    if (me.spaceShooterCy != null) {
+      me.spaceShooterCy = clampSpaceShooterWorldCy(me.spaceShooterCy + vy * moveSpd * dt, mh);
+    }
+    syncSpaceShooterFootFromShipCenter(me);
+
+    spaceShooterFireCd -= dt;
+    const fireHeld = !isChatFocused() && !!keys['Space'];
+    if (fireHeld && spaceShooterFireCd <= 0 && me.spaceShooterCy != null) {
+      spaceShooterFireCd = 0.21;
+      spaceShooterBullets.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 20, vy: -580, ownerId: myId });
+    }
+
+    stepSpaceShooterPreviewBots(dt);
+
+    for (let i = spaceShooterBullets.length - 1; i >= 0; i--) {
+      const b = spaceShooterBullets[i];
+      b.y += b.vy * dt;
+      if (b.y < -50 || b.x < -30 || b.x > mw + 30) spaceShooterBullets.splice(i, 1);
+    }
+    for (let ai = spaceShooterAsteroids.length - 1; ai >= 0; ai--) {
+      const a = spaceShooterAsteroids[ai];
+      a.y += a.vy * dt;
+      if (a.y > mh + 100) spaceShooterAsteroids.splice(ai, 1);
+    }
+
+    for (let bi = spaceShooterBullets.length - 1; bi >= 0; bi--) {
+      const b = spaceShooterBullets[bi];
+      let hit = -1;
+      for (let ai = 0; ai < spaceShooterAsteroids.length; ai++) {
+        const a = spaceShooterAsteroids[ai];
+        const dx = b.x - a.x, dy = b.y - a.y;
+        const rr = (a.r + 7) * (a.r + 7);
+        if (dx * dx + dy * dy <= rr) { hit = ai; break; }
+      }
+      if (hit >= 0) {
+        const a = spaceShooterAsteroids[hit];
+        a.hp = (a.hp || 1) - 1;
+        spaceShooterBullets.splice(bi, 1);
+        if (a.hp <= 0) {
+          spaceShooterAsteroids.splice(hit, 1);
+          const add = 5;
+          if (b.ownerId === myId) {
+            me.spaceShooterScore = Math.max(0, (me.spaceShooterScore || 0) + add);
+            spaceShooterPopups.push({ x: me.spaceShooterCx, y: me.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+          } else {
+            const o = others.get(b.ownerId);
+            if (o) {
+              o.spaceShooterScore = Math.max(0, (o.spaceShooterScore || 0) + add);
+              spaceShooterPopups.push({ x: o.spaceShooterCx, y: o.spaceShooterCy - 30, text: '+5', until: Date.now() + 700 });
+            }
+          }
+        }
+      }
+    }
+
+    const wallClock = Date.now();
+    for (let pi = spaceShooterPopups.length - 1; pi >= 0; pi--) {
+      /* until ใช้ Date.now() — ห้ามเทียบกับ performance.now() (สเกลคนละระบบ → ลบไม่ออก) */
+      if (wallClock >= spaceShooterPopups[pi].until) spaceShooterPopups.splice(pi, 1);
+    }
+
+    me.direction = 'up';
+    me.isWalking = vx !== 0 || vy !== 0;
+    const tEmit = Date.now();
+    if (tEmit - spaceShooterLastMoveEmit > 90 && socket && myId != null) {
+      spaceShooterLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        spaceShooterScore: Math.max(0, me.spaceShooterScore | 0),
+      });
+    }
+  }
+
+  function drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isSpaceShooter()) return;
+    const refs = buildSpaceShooterParticipantRefsPlay();
+    const wallNow = typeof timeMs === 'number' ? timeMs : Date.now();
+
+    for (let i = 0; i < spaceShooterAsteroids.length; i++) {
+      const a = spaceShooterAsteroids[i];
+      const [sx, sy] = worldToScreen(a.x, a.y);
+      const sr = Math.max(6, a.r * zDraw);
+      const grd = ctx.createRadialGradient(sx - sr * 0.25, sy - sr * 0.25, sr * 0.1, sx, sy, sr);
+      grd.addColorStop(0, 'rgba(90, 85, 95, 0.95)');
+      grd.addColorStop(0.55, 'rgba(35, 32, 42, 0.98)');
+      grd.addColorStop(1, 'rgba(18, 16, 24, 1)');
+      ctx.fillStyle = grd;
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr, 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 90, 60, 0.75)';
+      ctx.lineWidth = Math.max(1.5, zDraw * 1.2);
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr * 0.88, 0.6, 1.9);
+      ctx.stroke();
+      ctx.beginPath();
+      ctx.arc(sx + sr * 0.15, sy + sr * 0.1, sr * 0.35, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowColor = 'rgba(255, 60, 40, 0.55)';
+      ctx.shadowBlur = sr * 0.45;
+      ctx.strokeStyle = 'rgba(255, 120, 80, 0.35)';
+      ctx.beginPath();
+      ctx.arc(sx, sy, sr + 3 * zDraw, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.shadowBlur = 0;
+    }
+
+    for (let i = 0; i < spaceShooterBullets.length; i++) {
+      const b = spaceShooterBullets[i];
+      for (let k = 0; k < 4; k++) {
+        const t = k / 4;
+        const yy = b.y + t * 22;
+        const [bx, by] = worldToScreen(b.x, yy);
+        ctx.fillStyle = `rgba(255, ${180 - k * 35}, ${80 - k * 15}, ${0.95 - k * 0.18})`;
+        ctx.beginPath();
+        ctx.arc(bx, by, Math.max(2, 3.2 * zDraw - k * 0.4), 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.spaceShooterCx == null || ent.spaceShooterCy == null) return;
+      const [sx, sy] = worldToScreen(ent.spaceShooterCx, ent.spaceShooterCy);
+      const col = SPACE_SHOOTER_SHIP_COLORS[idx % SPACE_SHOOTER_SHIP_COLORS.length];
+      const bodyW = 14 * zDraw;
+      const bodyH = 22 * zDraw;
+      ctx.save();
+      ctx.translate(sx, sy);
+      ctx.fillStyle = col;
+      ctx.strokeStyle = 'rgba(180, 255, 255, 0.85)';
+      ctx.lineWidth = Math.max(1.2, zDraw);
+      ctx.beginPath();
+      ctx.moveTo(0, -bodyH * 0.55);
+      ctx.lineTo(-bodyW * 0.55, bodyH * 0.42);
+      ctx.lineTo(0, bodyH * 0.22);
+      ctx.lineTo(bodyW * 0.55, bodyH * 0.42);
+      ctx.closePath();
+      ctx.fill();
+      ctx.stroke();
+      ctx.fillStyle = 'rgba(255, 220, 120, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(-bodyW * 0.22, bodyH * 0.38);
+      ctx.lineTo(0, bodyH * 0.72);
+      ctx.lineTo(bodyW * 0.22, bodyH * 0.38);
+      ctx.closePath();
+      ctx.fill();
+      ctx.restore();
+      const name = (ent.nickname || '').slice(0, 10);
+      if (name) {
+        ctx.font = `${Math.max(9, 10 * zDraw)}px system-ui, "Kanit", sans-serif`;
+        ctx.textAlign = 'center';
+        ctx.fillStyle = 'rgba(224, 242, 255, 0.92)';
+        ctx.strokeStyle = 'rgba(0, 20, 40, 0.85)';
+        ctx.lineWidth = 3;
+        ctx.strokeText(name, sx, sy - bodyH * 0.62);
+        ctx.fillText(name, sx, sy - bodyH * 0.62);
+        ctx.textAlign = 'left';
+      }
+    });
+
+    for (let i = 0; i < spaceShooterPopups.length; i++) {
+      const p = spaceShooterPopups[i];
+      if (wallNow >= p.until) continue;
+      const [px, py] = worldToScreen(p.x, p.y);
+      const dur = 700;
+      const age = 1 - Math.max(0, Math.min(1, (p.until - wallNow) / dur));
+      ctx.save();
+      ctx.globalAlpha = Math.max(0, 1 - age * 0.92);
+      ctx.font = `bold ${Math.max(12, 16 * zDraw)}px Orbitron, ui-sans-serif, sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = '#ffe066';
+      ctx.strokeStyle = 'rgba(120, 60, 0, 0.6)';
+      ctx.lineWidth = 3;
+      ctx.strokeText(p.text || '+5', px, py - age * 18);
+      ctx.fillText(p.text || '+5', px, py - age * 18);
+      ctx.restore();
+    }
+  }
+
+  const BALLOON_BOSS_PLAYER_COLORS = ['#ff79c6', '#7aa2f7', '#f9e2af', '#f7768e', '#9ece6a', '#bb9af7'];
+
+  function normalizeBalloonBossPlayerSlotsInPlay(md) {
+    if (!md || md.gameType !== 'balloon_boss') return;
+    const w = md.width || 20, h = md.height || 15;
+    const src = md.balloonBossPlayerSlots || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= 6 ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    md.balloonBossPlayerSlots = rows;
+  }
+
+  function getBalloonBossPlayerSpawnWorldCenterFromMap(md, slot1to6, ts) {
+    if (!md || !md.balloonBossPlayerSlots) return null;
+    const w = md.width || 20, h = md.height || 15;
+    const g = md.balloonBossPlayerSlots;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (g[y] && g[y][x] === slot1to6) return { cx: (x + 0.5) * ts, cy: (y + 0.5) * ts };
+      }
+    }
+    return null;
+  }
+
+  function getBalloonBossBossWorldCenterPlay(md, ts) {
+    const bx = md && md.balloonBossBossSpawn;
+    if (bx && Number.isFinite(Number(bx.x)) && Number.isFinite(Number(bx.y))) {
+      return { cx: (Number(bx.x) + 0.5) * ts, cy: (Number(bx.y) + 0.5) * ts };
+    }
+    const w = md.width || 20, h = md.height || 15;
+    return { cx: (w * 0.5) * ts, cy: (h * 0.38) * ts };
+  }
+
+  function buildBalloonBossParticipantRefsPlay() {
+    const refs = [];
+    if (me) refs.push({ id: myId, ref: me });
+    const humanIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    humanIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+    botIds.forEach((id) => {
+      const o = others.get(id);
+      if (o) refs.push({ id, ref: o });
+    });
+    return refs.filter((r) => r.ref);
+  }
+
+  function balloonBossBalloonsStartPlay() {
+    const n = Number(mapData && mapData.balloonBossBalloonsPerPlayer);
+    return Math.max(1, Math.min(12, Number.isFinite(n) ? Math.floor(n) : 5));
+  }
+
+  function balloonBossMaxHpPlay() {
+    const n = Number(mapData && mapData.balloonBossMaxHp);
+    return Math.max(20, Math.min(9999, Number.isFinite(n) ? Math.floor(n) : 100));
+  }
+
+  function balloonBossFireDelayMsPlay() {
+    const n = Number(mapData && mapData.balloonBossFireDelayMs);
+    return Math.max(120, Math.min(2000, Number.isFinite(n) ? Math.floor(n) : 380));
+  }
+
+  /** ความเร่งยาน (px/s²) — ต่ำ = คุมยาก ลื่น */
+  function balloonBossShipAccelPlay() {
+    const n = Number(mapData && mapData.balloonBossShipAccel);
+    return Math.max(80, Math.min(520, Number.isFinite(n) ? n : 210));
+  }
+
+  /** ความเร็วสูงสุดยาน (px/s) */
+  function balloonBossShipMaxSpeedPlay() {
+    const n = Number(mapData && mapData.balloonBossShipMaxSpeed);
+    return Math.max(60, Math.min(320, Number.isFinite(n) ? n : 158));
+  }
+
+  /** แรงหน่วงต่อวินาที (velocity *= 1 - min(1, drag*dt)) — สูง = หยุดเร็วขึ้น */
+  function balloonBossShipDragPlay() {
+    const n = Number(mapData && mapData.balloonBossShipDrag);
+    return Math.max(0.4, Math.min(6, Number.isFinite(n) ? n : 1.65));
+  }
+
+  function balloonBossTimeLimitSecPlay() {
+    const t = Number(mapData && mapData.balloonBossTimeSec);
+    if (Number.isFinite(t) && t === 0) return 0;
+    if (Number.isFinite(t) && t > 0 && t < 7200) return Math.floor(t);
+    return 120;
+  }
+
+  function balloonBossRemainingSecPlay() {
+    const lim = balloonBossTimeLimitSecPlay();
+    if (lim <= 0) return null;
+    const elapsed = (performance.now() - balloonBossSessionStartMs) / 1000;
+    return Math.max(0, Math.ceil(lim - elapsed));
+  }
+
+  function balloonBossTeamDamagePlay() {
+    let s = Math.max(0, me.balloonBossScore | 0);
+    others.forEach((o) => { s += Math.max(0, o.balloonBossScore | 0); });
+    return s;
+  }
+
+  function syncBalloonBossFootFromCenter(ent) {
+    if (!ent || !mapData || ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    ent.x = ent.balloonBossCx / ts - cw * 0.5;
+    ent.y = ent.balloonBossCy / ts - ch * 0.92;
+  }
+
+  function clampBalloonBossWorld(cx, cy, mw, mh) {
+    const e = 22;
+    return {
+      cx: Math.max(e, Math.min(mw - e, cx)),
+      cy: Math.max(e, Math.min(mh - e, cy)),
+    };
+  }
+
+  function applyBalloonBossSpawnLayoutPlay() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    normalizeBalloonBossPlayerSlotsInPlay(mapData);
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const mw = w * ts, mh = h * ts;
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const n = refs.length || 1;
+    const bStart = balloonBossBalloonsStartPlay();
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      const slot = (idx % 6) + 1;
+      const cen = getBalloonBossPlayerSpawnWorldCenterFromMap(mapData, slot, ts);
+      let cx, cy;
+      if (cen) {
+        cx = cen.cx;
+        cy = cen.cy;
+      } else {
+        const t = (idx + 1) / (n + 1);
+        cx = t * mw;
+        cy = Math.min(mh - ts * 1.2, (h - 1.2) * ts);
+      }
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      ent.balloonBossCx = cl.cx;
+      ent.balloonBossCy = cl.cy;
+      if (typeof ent.balloonBossScore !== 'number' || !Number.isFinite(ent.balloonBossScore)) ent.balloonBossScore = 0;
+      if (typeof ent.balloonBossBalloons !== 'number' || !Number.isFinite(ent.balloonBossBalloons)) ent.balloonBossBalloons = bStart;
+      if (typeof ent.balloonBossHitIframe !== 'number') ent.balloonBossHitIframe = 0;
+      ent.balloonBossVelX = 0;
+      ent.balloonBossVelY = 0;
+      ent.x = ent.balloonBossCx / ts - cw * 0.5;
+      ent.y = ent.balloonBossCy / ts - ch * 0.92;
+      ent.tx = ent.x;
+      ent.ty = ent.y;
+      ent.direction = 'up';
+    });
+  }
+
+  function endBalloonBossGame(reason) {
+    if (balloonBossGameEnded || !mapData || mapData.gameType !== 'balloon_boss') return;
+    balloonBossGameEnded = true;
+    balloonBossPendingShots = [];
+    balloonBossPlayerBullets = [];
+    balloonBossBossBullets = [];
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = reason === 'victory' ? 'ชนะบอส! · Boss defeated' : 'หมดเวลา · Time up';
+    }
+    msgEl.textContent = reason === 'victory'
+      ? 'MEGA VIRUS ถูกกำจัดแล้ว — อันดับจากความเสียหายที่ทำกับบอส'
+      : 'หมดเวลา — อันดับจากความเสียหายที่ทำกับบอส';
+    listEl.innerHTML = '';
+    const ranks = [];
+    if (myId != null) {
+      ranks.push({ id: myId, nickname: (me.nickname || nick || 'คุณ').trim() || 'คุณ', score: Math.max(0, me.balloonBossScore | 0) });
+    }
+    others.forEach((o, id) => {
+      ranks.push({ id, nickname: (o && o.nickname) ? String(o.nickname).trim() : id, score: Math.max(0, o.balloonBossScore | 0) });
+    });
+    ranks.sort((a, b) => b.score - a.score || String(a.nickname).localeCompare(String(b.nickname), 'th'));
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — DMG ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  }
+
+  function stepBalloonBossPreviewBots(dt, mw, mh, bossCx, bossCy, ts) {
+    if (!previewFillBots || !mapData || mapData.gameType !== 'balloon_boss') return;
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const o = others.get(bid);
+      if (!o || o.balloonBossEliminated || o.balloonBossCx == null) return;
+      const wob = Math.sin(performance.now() / 800 + bid.length) * 0.55;
+      const wob2 = Math.cos(performance.now() / 1100 + bid.charCodeAt(0)) * 0.45;
+      const spd = 48;
+      let nx = o.balloonBossCx + wob * spd * dt;
+      let ny = o.balloonBossCy + wob2 * spd * 0.72 * dt;
+      const cl = clampBalloonBossWorld(nx, ny, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+      syncBalloonBossFootFromCenter(o);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (typeof o.balloonBossBotNextFire === 'number') o.balloonBossBotNextFire -= dt;
+      else o.balloonBossBotNextFire = 0.8 + Math.random() * 0.9;
+      if (o.balloonBossBotNextFire <= 0) {
+        o.balloonBossBotNextFire = 0.9 + Math.random() * 1.1;
+        const delayMs = balloonBossFireDelayMsPlay();
+        const dx = bossCx - o.balloonBossCx, dy = bossCy - o.balloonBossCy;
+        const d = Math.sqrt(dx * dx + dy * dy) || 1;
+        balloonBossPendingShots.push({
+          releaseAt: performance.now() + delayMs,
+          sx: o.balloonBossCx, sy: o.balloonBossCy,
+          vx: (dx / d) * 520, vy: (dy / d) * 520,
+          ownerId: bid,
+        });
+      }
+    });
+  }
+
+  function balloonBossTickFrame() {
+    if (!mapData || mapData.gameType !== 'balloon_boss') return;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const ts = tileSize;
+    const mw = w * ts, mh = h * ts;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    others.forEach((o, id) => {
+      if (isPreviewBotId(id)) return;
+      if (!o || o.balloonBossEliminated) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * 0.24;
+      if (o.ty != null) o.y += (o.ty - o.y) * 0.24;
+      const cx = (o.x + cw * 0.5) * ts;
+      const cy = (o.y + ch * 0.92) * ts;
+      const cl = clampBalloonBossWorld(cx, cy, mw, mh);
+      o.balloonBossCx = cl.cx;
+      o.balloonBossCy = cl.cy;
+    });
+    const now = performance.now();
+    const dt = Math.min(0.055, balloonBossLastTickMs ? (now - balloonBossLastTickMs) / 1000 : 0.016);
+    balloonBossLastTickMs = now;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const bossR = Math.max(36, ts * 1.15);
+    const maxHp = balloonBossMaxHpPlay();
+    const teamDmg = balloonBossTeamDamagePlay();
+
+    if (me.balloonBossEliminated) {
+      me.balloonBossVelX = 0;
+      me.balloonBossVelY = 0;
+    }
+    if (balloonBossGameEnded) {
+      for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+        balloonBossHitFx[hi].t -= dt;
+        if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+      }
+      return;
+    }
+    const remSec = balloonBossRemainingSecPlay();
+    if (remSec != null && remSec <= 0) {
+      endBalloonBossGame('time');
+      return;
+    }
+    if (teamDmg >= maxHp) {
+      endBalloonBossGame('victory');
+      return;
+    }
+
+    for (let hi = balloonBossHitFx.length - 1; hi >= 0; hi--) {
+      balloonBossHitFx[hi].t -= dt;
+      if (balloonBossHitFx[hi].t <= 0) balloonBossHitFx.splice(hi, 1);
+    }
+
+    const aliveRefs = buildBalloonBossParticipantRefsPlay().filter((e) => e.ref && !e.ref.balloonBossEliminated);
+
+    for (let pi = balloonBossPendingShots.length - 1; pi >= 0; pi--) {
+      const pnd = balloonBossPendingShots[pi];
+      if (now >= pnd.releaseAt) {
+        balloonBossPlayerBullets.push({ x: pnd.sx, y: pnd.sy, vx: pnd.vx, vy: pnd.vy, ownerId: pnd.ownerId });
+        balloonBossPendingShots.splice(pi, 1);
+      }
+    }
+
+    const bossFireEvery = 0.92;
+    balloonBossBossFireAcc += dt;
+    while (balloonBossBossFireAcc >= bossFireEvery) {
+      balloonBossBossFireAcc -= bossFireEvery;
+      if (aliveRefs.length) {
+        const wave = Math.floor(now / 1000);
+        const tgt = aliveRefs[wave % aliveRefs.length].ref;
+        if (tgt && tgt.balloonBossCx != null) {
+          const dx = tgt.balloonBossCx - bossC.cx, dy = tgt.balloonBossCy - bossC.cy;
+          const d = Math.sqrt(dx * dx + dy * dy) || 1;
+          const spd = 290;
+          balloonBossBossBullets.push({ x: bossC.cx, y: bossC.cy, vx: (dx / d) * spd, vy: (dy / d) * spd });
+        }
+      }
+    }
+
+    function applyBalloonBossHitToEntity(ent) {
+      if (!ent || ent.balloonBossEliminated) return;
+      if (ent.balloonBossHitIframe > now) return;
+      ent.balloonBossHitIframe = now + 520;
+      ent.balloonBossBalloons = Math.max(0, (ent.balloonBossBalloons | 0) - 1);
+      if (ent.balloonBossBalloons <= 0) {
+        ent.balloonBossEliminated = true;
+        ent.balloonBossBalloons = 0;
+      }
+      if (ent === me && socket) {
+        socket.emit('move', {
+          x: me.x, y: me.y, direction: me.direction,
+          balloonBossBalloons: me.balloonBossBalloons,
+          balloonBossEliminated: !!me.balloonBossEliminated,
+          balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        });
+      }
+    }
+
+    for (let bi = balloonBossBossBullets.length - 1; bi >= 0; bi--) {
+      const b = balloonBossBossBullets[bi];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -80 || b.x > mw + 80 || b.y < -80 || b.y > mh + 80) {
+        balloonBossBossBullets.splice(bi, 1);
+        continue;
+      }
+      let hit = false;
+      aliveRefs.forEach((entry) => {
+        if (hit) return;
+        const ent = entry.ref;
+        if (!ent || ent.balloonBossCx == null) return;
+        const dx = b.x - ent.balloonBossCx, dy = b.y - ent.balloonBossCy;
+        if (dx * dx + dy * dy <= (26 * 26)) {
+          hit = true;
+          applyBalloonBossHitToEntity(ent);
+        }
+      });
+      if (hit) balloonBossBossBullets.splice(bi, 1);
+    }
+
+    for (let i = balloonBossPlayerBullets.length - 1; i >= 0; i--) {
+      const b = balloonBossPlayerBullets[i];
+      b.x += b.vx * dt;
+      b.y += b.vy * dt;
+      if (b.x < -60 || b.x > mw + 60 || b.y < -60 || b.y > mh + 60) {
+        balloonBossPlayerBullets.splice(i, 1);
+        continue;
+      }
+      const dx = b.x - bossC.cx, dy = b.y - bossC.cy;
+      if (dx * dx + dy * dy <= bossR * bossR) {
+        balloonBossHitFx.push({ x: bossC.cx, y: bossC.cy, t: 0.22 });
+        const add = 1;
+        if (b.ownerId === myId) {
+          me.balloonBossScore = Math.max(0, (me.balloonBossScore | 0) + add);
+        } else {
+          const o = others.get(b.ownerId);
+          if (o) o.balloonBossScore = Math.max(0, (o.balloonBossScore | 0) + add);
+        }
+        balloonBossPlayerBullets.splice(i, 1);
+      }
+    }
+
+    let inX = 0, inY = 0;
+    if (!me.balloonBossEliminated && !isChatFocused()) {
+      if (keys['ArrowLeft'] || keys['KeyA']) inX -= 1;
+      if (keys['ArrowRight'] || keys['KeyD']) inX += 1;
+      if (keys['ArrowUp'] || keys['KeyW']) inY -= 1;
+      if (keys['ArrowDown'] || keys['KeyS']) inY += 1;
+    }
+    const accel = balloonBossShipAccelPlay();
+    const maxSpd = balloonBossShipMaxSpeedPlay();
+    const dragPerSec = balloonBossShipDragPlay();
+    if (typeof me.balloonBossVelX !== 'number' || !Number.isFinite(me.balloonBossVelX)) me.balloonBossVelX = 0;
+    if (typeof me.balloonBossVelY !== 'number' || !Number.isFinite(me.balloonBossVelY)) me.balloonBossVelY = 0;
+    let nvx = me.balloonBossVelX;
+    let nvy = me.balloonBossVelY;
+    if (inX !== 0 || inY !== 0) {
+      const il = Math.sqrt(inX * inX + inY * inY) || 1;
+      nvx += (inX / il) * accel * dt;
+      nvy += (inY / il) * accel * dt;
+    }
+    const drag = Math.min(1, dragPerSec * dt);
+    nvx *= (1 - drag);
+    nvy *= (1 - drag);
+    const curSpd = Math.sqrt(nvx * nvx + nvy * nvy);
+    if (curSpd > maxSpd) {
+      const s = maxSpd / curSpd;
+      nvx *= s;
+      nvy *= s;
+    }
+    me.balloonBossVelX = nvx;
+    me.balloonBossVelY = nvy;
+    if (!me.balloonBossEliminated && me.balloonBossCx != null) {
+      const ncx = me.balloonBossCx + nvx * dt;
+      const ncy = me.balloonBossCy + nvy * dt;
+      const cl = clampBalloonBossWorld(ncx, ncy, mw, mh);
+      if (Math.abs(cl.cx - ncx) > 0.5) me.balloonBossVelX = 0;
+      if (Math.abs(cl.cy - ncy) > 0.5) me.balloonBossVelY = 0;
+      me.balloonBossCx = cl.cx;
+      me.balloonBossCy = cl.cy;
+    }
+    syncBalloonBossFootFromCenter(me);
+    me.direction = 'up';
+    me.isWalking = Math.abs(me.balloonBossVelX) > 8 || Math.abs(me.balloonBossVelY) > 8 || inX !== 0 || inY !== 0;
+
+    balloonBossPlayerFireCd -= dt;
+    const wantFire = !isChatFocused() && !!keys['Space'] && !me.balloonBossEliminated;
+    if (wantFire && balloonBossPlayerFireCd <= 0 && me.balloonBossCy != null) {
+      balloonBossPlayerFireCd = 0.35;
+      const delayMs = balloonBossFireDelayMsPlay();
+      const dx = bossC.cx - me.balloonBossCx, dy = bossC.cy - me.balloonBossCy;
+      const d = Math.sqrt(dx * dx + dy * dy) || 1;
+      balloonBossPendingShots.push({
+        releaseAt: now + delayMs,
+        sx: me.balloonBossCx, sy: me.balloonBossCy,
+        vx: (dx / d) * 480, vy: (dy / d) * 480,
+        ownerId: myId,
+      });
+    }
+
+    stepBalloonBossPreviewBots(dt, mw, mh, bossC.cx, bossC.cy, ts);
+
+    const tEmit = Date.now();
+    if (tEmit - balloonBossLastMoveEmit > 95 && socket && myId != null) {
+      balloonBossLastMoveEmit = tEmit;
+      socket.emit('move', {
+        x: me.x, y: me.y, direction: me.direction,
+        balloonBossScore: Math.max(0, me.balloonBossScore | 0),
+        balloonBossBalloons: Math.max(0, me.balloonBossBalloons | 0),
+        balloonBossEliminated: !!me.balloonBossEliminated,
+      });
+    }
+  }
+
+  function drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs) {
+    if (!mapData || !isBalloonBoss()) return;
+    const ts = tileSize;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const mw = w * ts, mh = h * ts;
+    const bossC = getBalloonBossBossWorldCenterPlay(mapData, ts);
+    const maxHp = balloonBossMaxHpPlay();
+    const dmg = balloonBossTeamDamagePlay();
+    const hpLeft = Math.max(0, maxHp - dmg);
+    const bossR = Math.max(36, ts * 1.15);
+    const refs = buildBalloonBossParticipantRefsPlay();
+    const leaderId = (() => {
+      let best = null, bs = -1;
+      refs.forEach((e) => {
+        const sc = Math.max(0, e.ref.balloonBossScore | 0);
+        if (sc > bs) { bs = sc; best = e.id; }
+      });
+      return best;
+    })();
+
+    for (let hi = 0; hi < balloonBossHitFx.length; hi++) {
+      const fx = balloonBossHitFx[hi];
+      const [hx, hy] = worldToScreen(fx.x, fx.y);
+      const pulse = 1 + (fx.t || 0) * 3;
+      ctx.save();
+      ctx.globalAlpha = Math.min(1, (fx.t || 0) * 4);
+      ctx.strokeStyle = 'rgba(255, 220, 120, 0.9)';
+      ctx.lineWidth = 3 * zDraw;
+      ctx.beginPath();
+      ctx.arc(hx, hy, bossR * zDraw * 0.5 * pulse, 0, Math.PI * 2);
+      ctx.stroke();
+      ctx.restore();
+    }
+
+    const [bsx, bsy] = worldToScreen(bossC.cx, bossC.cy);
+    ctx.save();
+    ctx.translate(bsx, bsy);
+    ctx.strokeStyle = 'rgba(0, 255, 255, 0.75)';
+    ctx.lineWidth = Math.max(2, 2.5 * zDraw);
+    ctx.beginPath();
+    for (let k = 0; k < 6; k++) {
+      const ang = (k / 6) * Math.PI * 2 - Math.PI / 2;
+      const px = Math.cos(ang) * bossR * zDraw * 1.05;
+      const py = Math.sin(ang) * bossR * zDraw * 1.05;
+      if (k === 0) ctx.moveTo(px, py);
+      else ctx.lineTo(px, py);
+    }
+    ctx.closePath();
+    ctx.stroke();
+    ctx.fillStyle = 'rgba(0, 40, 60, 0.35)';
+    ctx.fill();
+
+    const skullR = bossR * zDraw * 0.62;
+    const grd = ctx.createRadialGradient(-skullR * 0.2, -skullR * 0.25, skullR * 0.1, 0, 0, skullR);
+    grd.addColorStop(0, 'rgba(55, 50, 62, 0.98)');
+    grd.addColorStop(1, 'rgba(22, 18, 30, 1)');
+    ctx.fillStyle = grd;
+    ctx.beginPath();
+    ctx.arc(0, 0, skullR, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = 'rgba(255, 40, 60, 0.95)';
+    ctx.shadowColor = 'rgba(255, 0, 0, 0.8)';
+    ctx.shadowBlur = 12 * zDraw;
+    ctx.beginPath();
+    ctx.arc(-skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.arc(skullR * 0.32, -skullR * 0.12, skullR * 0.14, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.shadowBlur = 0;
+
+    ctx.fillStyle = 'rgba(255, 100, 200, 0.9)';
+    ctx.font = `bold ${Math.max(10, 11 * zDraw)}px ui-monospace, monospace`;
+    ctx.textAlign = 'center';
+    ctx.fillText('MEGA VIRUS : [ ' + hpLeft + ' / ' + maxHp + ' ]', 0, -bossR * zDraw - 14);
+    const barW = bossR * zDraw * 2.2;
+    const barH = Math.max(5, 6 * zDraw);
+    ctx.fillStyle = 'rgba(0,0,0,0.55)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.fillStyle = 'rgba(255, 80, 200, 0.85)';
+    ctx.fillRect(-barW / 2, -bossR * zDraw - 8, barW * (hpLeft / maxHp), barH);
+    ctx.strokeStyle = 'rgba(180, 255, 255, 0.5)';
+    ctx.strokeRect(-barW / 2, -bossR * zDraw - 8, barW, barH);
+    ctx.restore();
+
+    function drawBalloonsCluster(sx, sy, count, col, z) {
+      const n = Math.max(0, Math.min(8, count | 0));
+      for (let b = 0; b < n; b++) {
+        const ox = (b - (n - 1) / 2) * 7 * z;
+        const oy = -18 * z - Math.abs(b - (n - 1) / 2) * 2 * z;
+        ctx.fillStyle = col;
+        ctx.beginPath();
+        ctx.ellipse(sx + ox, sy + oy, 6.5 * z, 8 * z, 0, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = 'rgba(255,255,255,0.35)';
+        ctx.lineWidth = 1;
+        ctx.stroke();
+      }
+    }
+
+    refs.forEach((entry, idx) => {
+      const ent = entry.ref;
+      if (ent.balloonBossCx == null || ent.balloonBossCy == null) return;
+      const [sx, sy] = worldToScreen(ent.balloonBossCx, ent.balloonBossCy);
+      const col = BALLOON_BOSS_PLAYER_COLORS[idx % BALLOON_BOSS_PLAYER_COLORS.length];
+      const z = zDraw;
+      ctx.save();
+      if (ent.balloonBossEliminated) ctx.globalAlpha = 0.38;
+      ctx.strokeStyle = 'rgba(255, 255, 255, 0.65)';
+      ctx.lineWidth = Math.max(1.2, 1.5 * z);
+      ctx.beginPath();
+      ctx.arc(sx, sy, 22 * z, 0, Math.PI * 2);
+      ctx.stroke();
+      drawBalloonsCluster(sx, sy, ent.balloonBossBalloons | 0, col, z);
+      const nm = String(ent.nickname || '').slice(0, 12);
+      ctx.font = `${Math.max(9, 10 * z)}px system-ui, "Kanit", sans-serif`;
+      ctx.textAlign = 'center';
+      ctx.fillStyle = 'rgba(248, 250, 252, 0.95)';
+      ctx.strokeStyle = 'rgba(0, 10, 30, 0.85)';
+      ctx.lineWidth = 3;
+      let label = nm;
+      if (entry.id === leaderId && leaderId != null) label = '♔ ' + nm;
+      ctx.strokeText(label, sx, sy + 28 * z);
+      ctx.fillText(label, sx, sy + 28 * z);
+      const charImg = getPlayTintedAvatarSource(
+        getAvatarImg(ent.characterId, 'up', timeMs, !!ent.isWalking),
+        ent.characterId, 'up', timeMs, !!ent.isWalking,
+        ent.playTint || playTintFromPeerId(entry.id)
+      );
+      const size = 26 * z;
+      if (charImg && ((charImg.tagName === 'CANVAS' && charImg.width > 0) || (charImg.complete && charImg.naturalWidth))) {
+        const iw = charImg.tagName === 'CANVAS' ? charImg.width : charImg.naturalWidth;
+        const ih = charImg.tagName === 'CANVAS' ? charImg.height : charImg.naturalHeight;
+        const sc = Math.min(size / iw, size / ih, 1);
+        const dw = iw * sc, dh = ih * sc;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - dw / 2, sy - dh + 4 * z, dw, dh);
+      } else {
+        ctx.fillStyle = col;
+        ctx.fillRect(sx - 10 * z, sy - 18 * z, 20 * z, 22 * z);
+      }
+      ctx.restore();
+    });
+
+    for (let i = 0; i < balloonBossPlayerBullets.length; i++) {
+      const b = balloonBossPlayerBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.save();
+      ctx.translate(bx, by);
+      ctx.rotate(Math.atan2(b.vy, b.vx) + Math.PI / 2);
+      ctx.fillStyle = 'rgba(255, 255, 255, 0.95)';
+      ctx.beginPath();
+      ctx.moveTo(0, -8 * zDraw);
+      ctx.lineTo(-5 * zDraw, 6 * zDraw);
+      ctx.lineTo(5 * zDraw, 6 * zDraw);
+      ctx.closePath();
+      ctx.fill();
+      ctx.fillStyle = 'rgba(0, 255, 200, 0.5)';
+      ctx.font = `${Math.max(7, 8 * zDraw)}px monospace`;
+      ctx.textAlign = 'center';
+      ctx.fillText('01001', 0, 12 * zDraw);
+      ctx.restore();
+    }
+    for (let i = 0; i < balloonBossBossBullets.length; i++) {
+      const b = balloonBossBossBullets[i];
+      const [bx, by] = worldToScreen(b.x, b.y);
+      ctx.fillStyle = 'rgba(255, 60, 120, 0.92)';
+      ctx.beginPath();
+      ctx.arc(bx, by, Math.max(3, 4.5 * zDraw), 0, Math.PI * 2);
+      ctx.fill();
+      ctx.strokeStyle = 'rgba(255, 200, 255, 0.6)';
+      ctx.stroke();
+    }
+  }
+
+  function jumpSurviveCollectPlatformCells(md) {
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    const out = [];
+    if (!pa) return out;
+    for (let y = 0; y < h; y++) {
+      for (let x = 0; x < w; x++) {
+        if (pa[y] && pa[y][x] === 1) out.push({ x, y });
+      }
+    }
+    return out;
+  }
+
+  /** ความสูงแมปเป็นคาบวนของแพลตฟอร์ม — แถวที่เลื่อนออกบนจะวนมาโผล่ล่าง */
+  function jumpSurvivePlatformPeriodPx(md) {
+    return (md.height || 15) * tileSize;
+  }
+
+  /**
+   * ยืนบนหน้าแพลตฟอร์มช่อง (tx,ty) — เลือกชั้น k ที่ใกล้ hintY (กล้อง / กลางแมป)
+   */
+  function jumpSurviveGridPosStandingOnPlatform(md, tx, ty, scrollPx) {
+    const ts = tileSize;
+    const h = md.height || 15;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const rawTop = ty * ts - scrollPx;
+    const hintY = (jumpSurviveCamCenterY > 1)
+      ? jumpSurviveCamCenterY
+      : h * ts * 0.72;
+    const k = Math.round((hintY - rawTop - ts * 0.35) / period);
+    const platTop = rawTop + k * period;
+    const feetY = platTop;
+    const pxc = (tx + 0.5) * ts;
+    return {
+      x: pxc / ts - cw * 0.5,
+      y: feetY / ts - ch,
+    };
+  }
+
+  function jumpSurviveGridPosFromTileCenter(md, tx, ty) {
+    return jumpSurviveGridPosStandingOnPlatform(md, tx, ty, 0);
+  }
+
+  function jumpSurviveRandomStandGridPos(md) {
+    const cells = jumpSurviveCollectPlatformCells(md);
+    const sc = jumpSurvivePlatformScrollPx;
+    if (cells.length) {
+      const c = cells[Math.floor(Math.random() * cells.length)];
+      return jumpSurviveGridPosStandingOnPlatform(md, c.x, c.y, sc);
+    }
+    const sp = md.spawn || { x: 1, y: 1 };
+    return jumpSurviveGridPosStandingOnPlatform(md, Number(sp.x) || 1, Number(sp.y) || 1, sc);
+  }
+
+  /** ทดสอบจากเอดิเตอร์: วางคน+บอทบนแพลตฟอร์ม (ไม่ให้เกิดบน spawnArea บนฟ้าแล้วลอย) */
+  function applyJumpSurvivePreviewSpawnLayout(onlyBots) {
+    if (!mapData || mapData.gameType !== 'jump_survive') return;
+    const cells = jumpSurviveCollectPlatformCells(mapData);
+    cells.sort((a, b) => b.y - a.y || a.x - b.x);
+    const sc = jumpSurvivePlatformScrollPx;
+    const pool = cells.length
+      ? cells.map((c) => jumpSurviveGridPosStandingOnPlatform(mapData, c.x, c.y, sc))
+      : [jumpSurviveGridPosStandingOnPlatform(mapData, Number(mapData.spawn && mapData.spawn.x) || 1, Number(mapData.spawn && mapData.spawn.y) || 1, sc)];
+    const realIds = [...others.keys()].filter((id) => !isPreviewBotId(id)).sort();
+    const botIds = [...others.keys()].filter(isPreviewBotId).sort();
+
+    function stampJumpBotState(o) {
+      if (!o) return;
+      o.jumpSurviveVy = 0;
+      o.jumpSurviveOnGround = true;
+      o.jumpSurviveEliminated = false;
+      o.tx = o.x;
+      o.ty = o.y;
+    }
+
+    if (onlyBots) {
+      let idx = 1 + realIds.length;
+      botIds.forEach((bid) => {
+        const o = others.get(bid);
+        if (!o || !pool.length) return;
+        const p = pool[idx % pool.length];
+        idx++;
+        o.x = p.x + (Math.random() - 0.5) * 0.08;
+        o.y = p.y + (Math.random() - 0.5) * 0.08;
+        stampJumpBotState(o);
+      });
+      return;
+    }
+
+    let idx = 0;
+    function assignEnt(ent) {
+      if (!ent || !pool.length) return;
+      const p = pool[idx % pool.length];
+      idx++;
+      ent.x = p.x + (Math.random() - 0.5) * 0.08;
+      ent.y = p.y + (Math.random() - 0.5) * 0.08;
+      stampJumpBotState(ent);
+    }
+    assignEnt(me);
+    realIds.forEach((rid) => assignEnt(others.get(rid)));
+    botIds.forEach((bid) => assignEnt(others.get(bid)));
+    jumpSurviveInitRuntime();
+  }
+
+  /**
+   * ฟิสิกส์กระโดดร่วม (ผู้เล่น + บอท preview)
+   * @returns {{ pxc: number, feetY: number, vy: number, onGround: boolean, died: boolean }}
+   */
+  function jumpSurvivePhysicsIntegrate(md, opts) {
+    const {
+      dt,
+      cw, ch,
+      pxc0, feetY0, vy0, wasOnGround,
+      jumpQueued,
+      moveLeft, moveRight,
+      camCenterY,
+      halfViewH,
+    } = opts;
+    const w = md.width || 20, h = md.height || 15;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const bh = ts * 0.9;
+    let pxc = pxc0;
+    let feetY = feetY0;
+    let vy = vy0;
+    let onGround = wasOnGround;
+
+    const gFull = Number(md.jumpSurviveGravity) > 0 ? Number(md.jumpSurviveGravity) : 3200;
+    const g = gFull * dt;
+    let jumpV0;
+    if (Number(md.jumpSurviveJumpImpulse) > 0) {
+      jumpV0 = -Number(md.jumpSurviveJumpImpulse);
+    } else {
+      const mult = (typeof playJumpSurviveJumpHeightMult === 'number' && playJumpSurviveJumpHeightMult > 0)
+        ? playJumpSurviveJumpHeightMult
+        : 1.5;
+      const charHpixels = ch * ts;
+      const impulse = Math.sqrt(Math.max(1e-6, 2 * gFull * mult * charHpixels));
+      jumpV0 = -Math.min(impulse, ts * 36);
+    }
+    let moveX = (Number(md.jumpSurviveMovePxPerSec) > 0 ? Number(md.jumpSurviveMovePxPerSec) : 200) * dt;
+    if (isJumpSurviveMissionUiMapPlay()) moveX *= 1.35;
+
+    if (jumpQueued && onGround) {
+      vy = jumpV0;
+      onGround = false;
+    }
+    vy += g;
+
+    let nx = pxc;
+    if (moveLeft) nx -= moveX;
+    if (moveRight) nx += moveX;
+    nx = Math.max(bw + 1, Math.min(w * ts - bw - 1, nx));
+
+    const headY0 = feetY - bh;
+    const tryL = nx - bw;
+    const tryR = nx + bw;
+    if (!jumpSurviveOverlapsSolidForHorzMove(md, tryL, headY0, tryR, feetY)) {
+      pxc = nx;
+    }
+
+    feetY += vy * dt;
+    let headTop = feetY - bh;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+      if (vy > 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY -= ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            onGround = true;
+            break;
+          }
+        }
+      } else if (vy < 0) {
+        for (let s = 0; s < 22; s++) {
+          feetY += ts * 0.035;
+          headTop = feetY - bh;
+          if (!jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY)) {
+            vy = 0;
+            break;
+          }
+        }
+      }
+    } else {
+      onGround = false;
+    }
+
+    headTop = feetY - bh;
+    const headBandBottom = headTop + bh * 0.42;
+    if (jumpSurviveOverlapsSolid(md, pxc - bw, headTop, pxc + bw, feetY) &&
+        jumpSurviveOverlapsObjectWall(md, pxc - bw, headTop, pxc + bw, headBandBottom)) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    headTop = feetY - bh;
+    const topKill = camCenterY - halfViewH - ts * 0.35;
+    const botKill = camCenterY + halfViewH + ts * 0.85;
+    if (feetY < topKill || feetY > botKill || headTop < -ts * 2) {
+      return { pxc, feetY, vy, onGround, died: true };
+    }
+
+    return { pxc, feetY, vy, onGround, died: false };
+  }
+
+  function jumpSurviveEntityFromHitbox(o, md, pxc, feetYpx) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    o.x = pxc / tileSize - cw * 0.5;
+    o.y = feetYpx / tileSize - ch;
+  }
+
+  function jumpSurviveInitRuntime() {
+    jumpSurviveLastTickMs = performance.now();
+    jumpSurviveSessionStartMs = performance.now();
+    jumpSurviveVy = 0;
+    jumpSurviveJumpQueued = false;
+    jumpSurviveOnGround = false;
+    jumpSurvivePlatformScrollPx = 0;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const ts = tileSize;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      const w = mapData.width || 20, h = mapData.height || 15;
+      jumpSurviveCamCenterX = (w * ts) * 0.5;
+      jumpSurviveCamCenterY = (h * ts) * 0.5;
+    } else {
+      jumpSurviveCamCenterX = (me.x + cw * 0.5) * ts;
+      jumpSurviveCamCenterY = (me.y + ch * 0.5) * ts;
+    }
+  }
+
+  function jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty >= h) return true;
+        if (ty < 0) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const pa = md.jumpSurvivePlatformArea;
+    if (!pa) return false;
+    const period = jumpSurvivePlatformPeriodPx(md);
+    if (period < ts) return false;
+    const x0 = Math.max(0, Math.floor(left / ts));
+    const x1 = Math.min(w - 1, Math.floor((right - 1e-6) / ts));
+    const vm = ts * 2;
+    for (let ty = 0; ty < h; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (!pa[ty] || pa[ty][tx] !== 1) continue;
+        const rawTop = ty * ts - scrollPx;
+        const kMin = Math.ceil((top - rawTop - ts - vm) / period);
+        const kMax = Math.floor((bottom - rawTop + vm) / period);
+        for (let k = kMin; k <= kMax; k++) {
+          const platTop = rawTop + k * period;
+          const platBot = platTop + ts;
+          const tileLeft = tx * ts;
+          const tileRight = (tx + 1) * ts;
+          if (platBot > top && platTop < bottom && right > tileLeft && left < tileRight) return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveOverlapsSolid(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /**
+   * ชนแนวนอน: objects เต็มกล่อง; แพลตฟอร์มไม่นับช่วงปลายเท้าเล็กน้อย
+   * (ถ้าใช้กล่องเต็มกับแพลตฟอร์ม ขณะยืนบนแพลตฟอร์มมักทับช่องแนวตั้ง — เดินซ้ายขวาถูกปฏิเสธทั้งก้อน)
+   */
+  function jumpSurviveOverlapsSolidForHorzMove(md, left, top, right, bottom) {
+    if (jumpSurviveOverlapsObjectSolids(md, left, top, right, bottom)) return true;
+    const ts = tileSize;
+    const footSlop = ts * 0.16;
+    const platformBottom = bottom - footSlop;
+    if (platformBottom <= top + ts * 0.05) return false;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, platformBottom, jumpSurvivePlatformScrollPx);
+  }
+
+  /** Head/body overlaps กำแพง (objects=1) เท่านั้น — ใช้ตรวจชนฝาบนแล้วตาย */
+  function jumpSurviveOverlapsObjectWall(md, left, top, right, bottom) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    const x0 = Math.floor(left / ts);
+    const x1 = Math.floor((right - 1e-6) / ts);
+    const y0 = Math.floor(top / ts);
+    const y1 = Math.floor((bottom - 1e-6) / ts);
+    for (let ty = y0; ty <= y1; ty++) {
+      for (let tx = x0; tx <= x1; tx++) {
+        if (tx < 0 || tx >= w || ty < 0 || ty >= h) continue;
+        const ob = md.objects && md.objects[ty] && md.objects[ty][tx];
+        if (ob === 1) return true;
+      }
+    }
+    return false;
+  }
+
+  function jumpSurviveSyncMeFromHitbox(pxc, feetYpx) {
+    jumpSurviveEntityFromHitbox(me, mapData, pxc, feetYpx);
+  }
+
+  function jumpSurviveCameraTargetPx(md) {
+    const ts = tileSize;
+    const w = md.width || 20, h = md.height || 15;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      return { px: (w * ts) * 0.5, py: (h * ts) * 0.5 };
+    }
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const cx = (e) => (e.x + cw * 0.5) * ts;
+    const cy = (e) => (e.y + ch * 0.5) * ts;
+    if (!jumpSurviveEliminated) return { px: cx(me), py: cy(me) };
+    const aliveHumanIds = [...others.keys()].filter((id) => {
+      if (isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const aliveBotIds = [...others.keys()].filter((id) => {
+      if (!isPreviewBotId(id)) return false;
+      const o = others.get(id);
+      return o && !o.jumpSurviveEliminated;
+    });
+    const useIds = aliveHumanIds.length ? aliveHumanIds : aliveBotIds;
+    if (!useIds.length) return { px: cx(me), py: cy(me) };
+    let sx = 0, sy = 0;
+    useIds.forEach((id) => {
+      const o = others.get(id);
+      if (!o) return;
+      sx += cx(o);
+      sy += cy(o);
+    });
+    const n = useIds.length;
+    return { px: sx / n, py: sy / n };
+  }
+
+  /** มีแพลตฟอร์มใต้จุดเล็กน้อยข้างหน้าแนว wishDir หรือไม่ — กันบอทเดินหลุมแล้วตกจอ */
+  function jumpSurviveBotHasFloorAhead(md, pxc, feetY, wishDir, scrollPx) {
+    if (!wishDir) return true;
+    const ts = tileSize;
+    const bw = ts * 0.34;
+    const probeX = pxc + wishDir * (bw + ts * 0.82);
+    const pad = ts * 0.24;
+    const left = probeX - pad;
+    const right = probeX + pad;
+    const top = feetY - ts * 0.45;
+    const bottom = feetY + ts * 8;
+    return jumpSurviveOverlapsPlatforms(md, left, top, right, bottom, scrollPx);
+  }
+
+  function stepJumpSurvivePreviewBots(dt, halfViewH) {
+    if (!previewFillBots || !mapData || !isJumpSurvive()) return;
+    const md = mapData;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const ts = tileSize;
+    const wpx = (md.width || 20) * ts;
+    const centerPx = wpx * 0.5;
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      if (o.jumpSurviveEliminated) return;
+      if (typeof o.jumpSurviveVy !== 'number') o.jumpSurviveVy = 0;
+      if (o.jumpSurviveOnGround == null) o.jumpSurviveOnGround = false;
+      if (typeof o.jumpSurviveNextJumpAi !== 'number') o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * 500);
+      if (typeof o.jumpSurviveWishNext !== 'number') o.jumpSurviveWishNext = Date.now() + 200;
+      if (o.jumpSurviveWishX == null) o.jumpSurviveWishX = 0;
+
+      let pxc = (o.x + cw * 0.5) * ts;
+      let feetY = (o.y + ch) * ts;
+
+      const camCy = jumpSurviveCamCenterY;
+      const mission = isJumpSurviveMissionUiMapPlay();
+      const lowDanger = feetY > camCy + halfViewH - ts * 8.5;
+
+      if (Date.now() >= o.jumpSurviveWishNext) {
+        const wMin = mission && lowDanger ? 180 : 380;
+        const wSpan = mission && lowDanger ? 480 : 700;
+        o.jumpSurviveWishNext = Date.now() + wMin + Math.floor(Math.random() * wSpan);
+        const tier = o.botTier || 'avg';
+        if (mission && lowDanger && Math.random() < 0.55) {
+          o.jumpSurviveWishX = 0;
+        } else if (pxc < centerPx - ts * 1.8) o.jumpSurviveWishX = 1;
+        else if (pxc > centerPx + ts * 1.8) o.jumpSurviveWishX = -1;
+        else if (tier === 'sharp') {
+          const roam = mission ? 0.42 : 0.55;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        } else {
+          const roam = mission ? 0.28 : 0.4;
+          o.jumpSurviveWishX = Math.random() < roam ? (Math.random() < 0.5 ? -1 : 1) : 0;
+        }
+      }
+
+      let moveLeft = o.jumpSurviveWishX < 0;
+      let moveRight = o.jumpSurviveWishX > 0;
+      let hazardJump = false;
+      if (o.jumpSurviveOnGround) {
+        const sc = jumpSurvivePlatformScrollPx;
+        if (moveRight && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, 1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? -1 : 0;
+          hazardJump = true;
+        } else if (moveLeft && !jumpSurviveBotHasFloorAhead(md, pxc, feetY, -1, sc)) {
+          o.jumpSurviveWishX = Math.random() < 0.65 ? 1 : 0;
+          hazardJump = true;
+        }
+        moveLeft = o.jumpSurviveWishX < 0;
+        moveRight = o.jumpSurviveWishX > 0;
+      }
+
+      let jumpQ = false;
+      if (hazardJump) o.jumpSurviveNextJumpAi = Math.min(o.jumpSurviveNextJumpAi, Date.now());
+      if (o.jumpSurviveOnGround && Date.now() >= o.jumpSurviveNextJumpAi) {
+        o.jumpSurviveNextJumpAi = Date.now() + 300 + Math.floor(Math.random() * (hazardJump ? 520 : 1100));
+        const tier = o.botTier || 'avg';
+        let jp = tier === 'sharp' ? 0.5 : tier === 'weak' ? 0.25 : 0.36;
+        if (mission) jp += 0.12;
+        if (lowDanger) jp += 0.22;
+        jp = Math.min(0.9, jp);
+        if (hazardJump || Math.random() < jp) jumpQ = true;
+      }
+
+      const r = jumpSurvivePhysicsIntegrate(md, {
+        dt,
+        cw,
+        ch,
+        pxc0: pxc,
+        feetY0: feetY,
+        vy0: o.jumpSurviveVy,
+        wasOnGround: o.jumpSurviveOnGround,
+        jumpQueued: jumpQ,
+        moveLeft,
+        moveRight,
+        camCenterY: jumpSurviveCamCenterY,
+        halfViewH,
+      });
+
+      if (r.died) {
+        o.jumpSurviveEliminated = true;
+        o.jumpSurviveVy = 0;
+        jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+        o.tx = o.x;
+        o.ty = o.y;
+        o.botIsWalking = false;
+        return;
+      }
+      o.jumpSurviveVy = r.vy;
+      o.jumpSurviveOnGround = r.onGround;
+      jumpSurviveEntityFromHitbox(o, md, r.pxc, r.feetY);
+      o.tx = o.x;
+      o.ty = o.y;
+      if (moveRight) o.direction = 'right';
+      else if (moveLeft) o.direction = 'left';
+      o.botIsWalking = Math.abs(r.vy) > 40 || moveLeft || moveRight;
+    });
+  }
+
+  function jumpSurviveTickFrame() {
+    if (!mapData || !isJumpSurvive()) return;
+    if (isJumpSurviveMissionUiMapPlay()) {
+      if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) return;
+      const remEnd = jumpSurviveRemainingSecMission();
+      if (remEnd !== null && remEnd <= 0) {
+        endJumpSurviveMissionRound();
+        return;
+      }
+    }
+    const md = mapData;
+    const ts = tileSize;
+    const now = performance.now();
+    const dt = Math.min(0.05, Math.max(0, (now - jumpSurviveLastTickMs) / 1000));
+    jumpSurviveLastTickMs = now;
+
+    const halfViewH = canvas.height / (2 * zoom);
+    const rise = (Number(md.jumpSurviveRisePxPerSec) > 0 ? Number(md.jumpSurviveRisePxPerSec) : 42) * dt;
+    jumpSurvivePlatformScrollPx += rise;
+
+    const camTgt = jumpSurviveCameraTargetPx(md);
+    const ck = Math.min(1, dt * 7);
+    jumpSurviveCamCenterX += (camTgt.px - jumpSurviveCamCenterX) * ck;
+    jumpSurviveCamCenterY += (camTgt.py - jumpSurviveCamCenterY) * ck;
+
+    if (jumpSurviveEliminated) {
+      stepJumpSurvivePreviewBots(dt, halfViewH);
+      jumpSurviveMissionMaybeEarlyFinish();
+      return;
+    }
+
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let pxc = (me.x + cw * 0.5) * ts;
+    let feetY = (me.y + ch) * ts;
+
+    const jq = jumpSurviveJumpQueued;
+    jumpSurviveJumpQueued = false;
+
+    const r = jumpSurvivePhysicsIntegrate(md, {
+      dt,
+      cw,
+      ch,
+      pxc0: pxc,
+      feetY0: feetY,
+      vy0: jumpSurviveVy,
+      wasOnGround: jumpSurviveOnGround,
+      jumpQueued: jq,
+      moveLeft: !!(keys['ArrowLeft'] || keys['KeyA']),
+      moveRight: !!(keys['ArrowRight'] || keys['KeyD']),
+      camCenterY: jumpSurviveCamCenterY,
+      halfViewH,
+    });
+
+    if (r.died) {
+      jumpSurviveEliminated = true;
+      jumpSurviveVy = 0;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+      ['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown', 'KeyA', 'KeyW', 'KeyS', 'KeyD'].forEach((c) => { keys[c] = false; });
+    } else {
+      jumpSurviveVy = r.vy;
+      jumpSurviveOnGround = r.onGround;
+      jumpSurviveSyncMeFromHitbox(r.pxc, r.feetY);
+    }
+
+    stepJumpSurvivePreviewBots(dt, halfViewH);
+
+    if (!jumpSurviveEliminated) {
+      me.isWalking = Math.abs(jumpSurviveVy) > 40 || !!(keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD']);
+      if (keys['ArrowRight'] || keys['KeyD']) me.direction = 'right';
+      else if (keys['ArrowLeft'] || keys['KeyA']) me.direction = 'left';
+
+      if (Date.now() - jumpSurviveLastEmitT > 80) {
+        jumpSurviveLastEmitT = Date.now();
+        socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+      }
+    }
+
+    jumpSurviveMissionMaybeEarlyFinish();
+  }
+
+  function gridImageLibIdleUrlPlay(entry) {
+    if (entry == null) return '';
+    if (typeof entry === 'string') return entry;
+    if (typeof entry === 'object' && entry.idle) return String(entry.idle);
+    return '';
+  }
+  function gridImageLibHeldUrlPlay(entry) {
+    if (entry == null || typeof entry === 'string') return '';
+    if (typeof entry === 'object' && entry.held && String(entry.held).length) return String(entry.held);
+    return '';
+  }
+
+  function normalizeGridImageCellsOnMap(md) {
+    if (!md) return;
+    const w = md.width || 20, h = md.height || 15;
+    if (!Array.isArray(md.gridImageLibrary)) md.gridImageLibrary = [];
+    md.gridImageLibrary = md.gridImageLibrary
+      .map((raw) => {
+        if (typeof raw === 'string' && raw.length > 0 && raw.length < 30000000) return { idle: raw, held: null };
+        if (raw && typeof raw === 'object' && typeof raw.idle === 'string' && raw.idle.length > 0 && raw.idle.length < 30000000) {
+          let held = typeof raw.held === 'string' && raw.held.length > 0 && raw.held.length < 30000000 ? raw.held : null;
+          if (held && held === raw.idle) held = null;
+          return { idle: raw.idle, held };
+        }
+        return null;
+      })
+      .filter(Boolean);
+    const libLen = md.gridImageLibrary.length;
+    let placements = [];
+    if (Array.isArray(md.gridImageSprites) && md.gridImageSprites.length) {
+      placements = md.gridImageSprites.map((raw) => {
+        const i = Math.max(0, Math.floor(Number(raw.i)));
+        const x = Math.floor(Number(raw.x));
+        const y = Math.floor(Number(raw.y));
+        const ww = Math.max(1, Math.floor(Number(raw.w)) || 1);
+        const hh = Math.max(1, Math.floor(Number(raw.h)) || 1);
+        const rawB = raw.bindCarryOption;
+        const bn = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+        const base = { i, x, y, w: ww, h: hh };
+        if (Number.isFinite(bn) && bn >= 1 && bn <= QUIZ_CARRY_MAX_OPTION_SLOTS) base.bindCarryOption = bn;
+        return base;
+      }).filter((s) => Number.isFinite(s.i) && s.i >= 0 && s.i < libLen &&
+        Number.isFinite(s.x) && Number.isFinite(s.y) && s.w >= 1 && s.h >= 1 &&
+        s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+      placements = placements.map((s) => {
+        let x = s.x, y = s.y, ww = s.w, hh = s.h;
+        if (x < 0) { ww += x; x = 0; }
+        if (y < 0) { hh += y; y = 0; }
+        if (x + ww > w) ww = w - x;
+        if (y + hh > h) hh = h - y;
+        const out = { i: s.i, x, y, w: Math.max(1, ww), h: Math.max(1, hh) };
+        if (s.bindCarryOption != null) out.bindCarryOption = s.bindCarryOption;
+        return out;
+      }).filter((s) => s.x < w && s.y < h && s.x + s.w > 0 && s.y + s.h > 0);
+    } else {
+      const cells = md.gridImageCells;
+      if (Array.isArray(cells) && cells.length === h && libLen > 0) {
+        for (let yy = 0; yy < h; yy++) {
+          const row = cells[yy];
+          if (!row) continue;
+          for (let xx = 0; xx < w; xx++) {
+            if (row[xx] == null) continue;
+            const iv = parseInt(row[xx], 10);
+            if (!Number.isFinite(iv) || iv < 0 || iv >= libLen) continue;
+            placements.push({ i: iv, x: xx, y: yy, w: 1, h: 1 });
+          }
+        }
+      }
+    }
+    md.gridImagePlacements = placements;
+    const outCells = Array(h).fill(0).map(() => Array(w).fill(null));
+    placements.forEach((sp) => {
+      for (let yy = sp.y; yy < sp.y + sp.h; yy++) {
+        for (let xx = sp.x; xx < sp.x + sp.w; xx++) {
+          if (yy >= 0 && yy < h && xx >= 0 && xx < w) outCells[yy][xx] = sp.i;
+        }
+      }
+    });
+    md.gridImageCells = outCells;
+  }
+
+  function loadMapGridImages() {
+    mapGridImageImgs = [];
+    mapGridImageHeldImgs = [];
+    if (!mapData || !Array.isArray(mapData.gridImageLibrary) || !mapData.gridImageLibrary.length) return;
+    mapData.gridImageLibrary.forEach((entry, i) => {
+      mapGridImageImgs[i] = null;
+      mapGridImageHeldImgs[i] = null;
+      const idle = gridImageLibIdleUrlPlay(entry);
+      if (!idle) return;
+      const im = new Image();
+      im.onload = () => { try { draw(); } catch (e) {} };
+      im.onerror = () => {};
+      im.src = idle;
+      mapGridImageImgs[i] = im;
+      const held = gridImageLibHeldUrlPlay(entry);
+      if (held && held !== idle) {
+        const hm = new Image();
+        hm.onload = () => { try { draw(); } catch (e) {} };
+        hm.onerror = () => {};
+        hm.src = held;
+        mapGridImageHeldImgs[i] = hm;
+      }
+    });
+  }
+
+  /** โซนตัวเลือกที่ทับสไปรต์มากที่สุด — quiz_carry สลับรูป idle/held · ถ้าไม่ทับเลยลองขยายขอบ 1 ช่อง (มาร์กเกอร์ชิดขอบสไปรต์) */
+  function dominantQuizCarryOptionInSpriteRect(md, sp) {
+    if (!md || md.gameType !== 'quiz_carry' || !md.quizCarryOptionArea) return null;
+    const g = md.quizCarryOptionArea;
+    const mw = md.width || 20, mh = md.height || 15;
+    const bx = sp.x | 0, by = sp.y | 0, bw = sp.w | 0, bh = sp.h | 0;
+    const counts = new Map();
+    function addOverlapRect(x0, y0, ww, hh) {
+      for (let yy = y0; yy < y0 + hh; yy++) {
+        if (yy < 0 || yy >= mh) continue;
+        const row = g[yy];
+        if (!row) continue;
+        for (let xx = x0; xx < x0 + ww; xx++) {
+          if (xx < 0 || xx >= mw) continue;
+          const v = row[xx];
+          const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+          if (!Number.isFinite(n) || n < 1 || n > QUIZ_CARRY_MAX_OPTION_SLOTS) continue;
+          const idx = n - 1;
+          counts.set(idx, (counts.get(idx) || 0) + 1);
+        }
+      }
+    }
+    addOverlapRect(bx, by, bw, bh);
+    if (!counts.size) {
+      const pad = 1;
+      const x0 = Math.max(0, bx - pad);
+      const y0 = Math.max(0, by - pad);
+      const x1 = Math.min(mw, bx + bw + pad);
+      const y1 = Math.min(mh, by + bh + pad);
+      addOverlapRect(x0, y0, x1 - x0, y1 - y0);
+    }
+    if (!counts.size) return null;
+    let best = null;
+    let bestN = -1;
+    counts.forEach((n, k) => {
+      if (best == null || n > bestN || (n === bestN && k < best)) {
+        bestN = n;
+        best = k;
+      }
+    });
+    return best;
+  }
+
+  /** 0-based choice index สำหรับสลับ idle/held — ใช้ bindCarryOption จากแมปก่อน แล้วค่อยนับทับโซน */
+  function quizCarryOptionIndexForGridSprite(md, sp) {
+    if (!sp) return null;
+    const rawB = sp.bindCarryOption;
+    if (rawB != null && rawB !== '') {
+      const n = typeof rawB === 'number' ? rawB : parseInt(String(rawB), 10);
+      if (Number.isFinite(n) && n >= 1 && n <= QUIZ_CARRY_MAX_OPTION_SLOTS) return n - 1;
+    }
+    return dominantQuizCarryOptionInSpriteRect(md, sp);
+  }
+
+  /** รูป held จากคลังกริดสำหรับข้อนี้ — ใช้วาดป้ายติดตัว (ไม่ผ่าน sanitize URL) */
+  function findQuizCarryGridHeldImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gh = mapGridImageHeldImgs[sp.i];
+      if (gh && gh.complete && gh.naturalWidth) return gh;
+    }
+    return null;
+  }
+
+  /** รูป idle จากคลังกริดสำหรับข้อนี้ — วาดบนป้ายตัวเลือกบนพื้นเมื่อไม่มีรูปจากคำถาม/ธีม */
+  function findQuizCarryGridIdleImgForChoiceIndex(choiceIdx) {
+    if (choiceIdx == null || choiceIdx < 0 || !isQuizCarry() || !mapData) return null;
+    const pl = mapData.gridImagePlacements;
+    if (!Array.isArray(pl) || !pl.length) return null;
+    for (let gi = 0; gi < pl.length; gi++) {
+      const sp = pl[gi];
+      const opt = quizCarryOptionIndexForGridSprite(mapData, sp);
+      if (opt !== choiceIdx) continue;
+      const gid = mapGridImageImgs[sp.i];
+      if (gid && gid.complete && gid.naturalWidth) return gid;
+    }
+    return null;
+  }
+
+  function applyMapAndStart(gameMapData, res) {
+    const prevWasSpaceShooter = mapData && mapData.gameType === 'space_shooter';
+    const prevWasBalloonBoss = mapData && mapData.gameType === 'balloon_boss';
+    mapData = gameMapData;
+    if (res && res.mapId != null && String(res.mapId).trim() !== '') {
+      playSessionMapId = String(res.mapId).trim();
+    }
+    if (res && res.hostId != null) playHostId = res.hostId;
+    if (mapData.gameType !== 'space_shooter') {
+      spaceShooterGameEnded = false;
+      if (prevWasSpaceShooter) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (mapData.gameType !== 'balloon_boss') {
+      balloonBossGameEnded = false;
+      if (prevWasBalloonBoss) {
+        const gend = document.getElementById('gauntlet-ended-overlay');
+        if (gend) gend.classList.add('is-hidden');
+      }
+    }
+    if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+    if (!mapData.interactive) mapData.interactive = [];
+    if (mapData.gameType === 'quiz') {
+      if (!mapData.quizTrueArea) mapData.quizTrueArea = [];
+      if (!mapData.quizFalseArea) mapData.quizFalseArea = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+    }
+    if (mapData.gameType === 'stack') {
+      if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+      if (!mapData.stackLandArea) mapData.stackLandArea = [];
+    }
+    if (mapData.gameType === 'quiz_carry') {
+      if (!mapData.quizCarryHubArea) mapData.quizCarryHubArea = [];
+      if (!mapData.quizCarryOptionArea) mapData.quizCarryOptionArea = [];
+      if (!mapData.carryEmbedCountdownArea) mapData.carryEmbedCountdownArea = [];
+      if (!mapData.quizQuestions) mapData.quizQuestions = [];
+      if (!mapData.quizQuestionArea) mapData.quizQuestionArea = [];
+      normalizeQuizCarryLayersInPlay(mapData);
+    }
+    if (mapData.gameType === 'quiz_battle') {
+      if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+      if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+      normalizeQuizBattlePathInPlay(mapData);
+      normalizeQuizBattleDomeInPlay(mapData);
+    }
+    tileSize = mapData.tileSize || 32;
+    mapBackgroundImg = null;
+    if (mapData.backgroundImage) {
+      mapBackgroundImg = new Image();
+      mapBackgroundImg.src = mapData.backgroundImage;
+    }
+    normalizeGridImageCellsOnMap(mapData);
+    loadMapGridImages();
+    var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+      : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+        : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+    var prevTag = previewMode ? '[ทดสอบ] ' : '';
+    document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+    const plist = Array.isArray(res.peers) ? res.peers : [];
+    const myPeer = plist.find(p => p.id === myId);
+    const myPos = peerXYFromJoin(myPeer, mapData.spawn);
+    me.x = myPos.x;
+    me.y = myPos.y;
+    if (isQuizCarry()) {
+      const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(me.x, me.y);
+      me.x = hubSnap.x;
+      me.y = hubSnap.y;
+    }
+    if (isQuizBattle()) {
+      const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+      me.x = pathSnap.x;
+      me.y = pathSnap.y;
+    }
+    me.direction = myPeer?.direction ?? 'down';
+    me.characterId = myPeer?.characterId || null;
+    meGauntletJumpTicks = typeof myPeer?.gauntletJumpTicks === 'number' ? myPeer.gauntletJumpTicks : 0;
+    meGauntletJumpVis = meGauntletJumpTicks;
+    {
+      const sc0 = Number(myPeer && myPeer.gauntletScore);
+      me.gauntletScore = Number.isFinite(sc0) ? Math.max(0, sc0) : 0;
+      me.gauntletEliminated = !!(myPeer && myPeer.gauntletEliminated);
+    }
+    {
+      const sh0 = Number(myPeer && myPeer.spaceShooterScore);
+      me.spaceShooterScore = Number.isFinite(sh0) ? Math.max(0, sh0) : 0;
+    }
+    {
+      const bSt = balloonBossBalloonsStartPlay();
+      const bs0 = Number(myPeer && myPeer.balloonBossScore);
+      me.balloonBossScore = Number.isFinite(bs0) ? Math.max(0, bs0) : 0;
+      const bb0 = Number(myPeer && myPeer.balloonBossBalloons);
+      me.balloonBossBalloons = Number.isFinite(bb0) ? Math.max(0, Math.floor(bb0)) : bSt;
+      me.balloonBossEliminated = !!(myPeer && myPeer.balloonBossEliminated);
+    }
+    gauntletObstacles = [];
+    gauntletObsRenderPrev = [];
+    gauntletObsRenderNext = [];
+    gauntletObsBlendT0 = 0;
+    me.playTint = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+    others.clear();
+    plist.forEach(p => {
+      if (p.id !== myId) {
+        const pos = peerXYFromJoin(p, mapData.spawn);
+        let px = pos.x, py = pos.y;
+        if (isQuizCarry()) {
+          const hubSnap = snapPositionOutOfQuizCarryHubIfNeeded(px, py);
+          px = hubSnap.x;
+          py = hubSnap.y;
+        }
+        if (isQuizBattle()) {
+          const pathSnap = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          px = pathSnap.x;
+          py = pathSnap.y;
+        }
+        others.set(p.id, {
+          x: px, y: py, tx: px, ty: py, direction: p.direction, nickname: p.nickname, characterId: p.characterId,
+          playTint: playTintFromPeerId(p.id),
+          gauntletJumpTicks: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletJumpVis: typeof p.gauntletJumpTicks === 'number' ? p.gauntletJumpTicks : 0,
+          gauntletScore: (() => { const s = Number(p.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          gauntletEliminated: !!p.gauntletEliminated,
+          jumpSurviveEliminated: false,
+          spaceShooterScore: (() => { const s = Number(p.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossScore: (() => { const s = Number(p.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+          balloonBossBalloons: (() => {
+            const s = Number(p.balloonBossBalloons);
+            return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+          })(),
+          balloonBossEliminated: !!p.balloonBossEliminated,
+          quizCarryHeld: null,
+        });
+      }
+    });
+    if (mapData.gameType === 'gauntlet') {
+      me.tx = me.x;
+      me.ty = me.y;
+      if (res.gauntletEndsAt != null) {
+        const geJoin = Number(res.gauntletEndsAt);
+        gauntletEndsAtMs = Number.isFinite(geJoin) ? geJoin : null;
+      } else {
+        gauntletEndsAtMs = null;
+      }
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {});
+    } else {
+      me.tx = null;
+      me.ty = null;
+      gauntletEndsAtMs = null;
+    }
+    rebalancePreviewBots();
+    if (mapData.gameType === 'space_shooter') {
+      applySpaceShooterSpawnLayoutPlay();
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      applyBalloonBossSpawnLayoutPlay();
+    }
+    if (isStack()) {
+      lastStackTickMs = performance.now();
+      resetStackMinigameState();
+      fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+        .then((r) => (r.ok ? r.json() : null))
+        .then((t) => {
+          if (t) applyGauntletTimingFromServer(t);
+          else reapplyStackMiniSizingFromGlobals();
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        })
+        .catch(() => {
+          if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+        });
+    } else {
+      stackMini = null;
+    }
+    playPath = [];
+    me.isWalking = false;
+    if (mapData.gameType === 'jump_survive') {
+      if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+      if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+      normalizeJumpSurvivePlatformAreaInPlay(mapData);
+      jumpSurviveEliminated = false;
+      jumpSurviveGameEnded = false;
+      if (jumperMissionCountdownTimer) {
+        clearTimeout(jumperMissionCountdownTimer);
+        jumperMissionCountdownTimer = null;
+      }
+      if (isJumpSurviveMissionUiMapPlay()) {
+        jumpSurviveMissionPhase = 'howto';
+        hideConflictingOverlaysForJumpSurviveMission();
+        applyJumpSurviveJumperPanelImages();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then(function (r) { return r.ok ? r.json() : null; })
+          .then(function (t) { if (t) applyGauntletTimingFromServer(t); })
+          .catch(function () {});
+        setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 50);
+      } else {
+        jumpSurviveMissionPhase = null;
+        jumpSurviveInitRuntime();
+      }
+    }
+    if (mapData.gameType === 'space_shooter') {
+      spaceShooterGameEnded = false;
+      normalizeShooterSpawnSlotsInPlay(mapData);
+      spaceShooterBullets = [];
+      spaceShooterAsteroids = [];
+      spaceShooterPopups = [];
+      spaceShooterLastTickMs = performance.now();
+      spaceShooterSpawnAccMs = 0;
+      spaceShooterFireCd = 0;
+      spaceShooterSessionStartMs = performance.now();
+      spaceShooterLastMoveEmit = 0;
+    }
+    if (mapData.gameType === 'balloon_boss') {
+      balloonBossGameEnded = false;
+      normalizeBalloonBossPlayerSlotsInPlay(mapData);
+      balloonBossPendingShots = [];
+      balloonBossPlayerBullets = [];
+      balloonBossBossBullets = [];
+      balloonBossHitFx = [];
+      balloonBossLastTickMs = performance.now();
+      balloonBossPlayerFireCd = 0;
+      balloonBossSessionStartMs = performance.now();
+      balloonBossLastMoveEmit = 0;
+      balloonBossBossFireAcc = 0;
+    }
+    if (isQuiz()) setupPlayQuizUi();
+    else if (isQuizCarry()) setupPlayQuizCarryUi();
+    else if (isQuizBattle()) setupPlayQuizBattleUi();
+    else teardownPlayQuizUi();
+    if (mapData.gameType === 'gauntlet' && isGauntletCrownHeistMapPlay()) {
+      hideConflictingOverlaysForGauntletCrown();
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR = document.getElementById('gauntlet-crown-countdown');
+      if (gccR) gccR.classList.add('is-hidden');
+      setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 50);
+    } else if (mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay()) {
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccRj = document.getElementById('gauntlet-crown-countdown');
+      if (gccRj) gccRj.classList.add('is-hidden');
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+    } else {
+      const hov = document.getElementById('gauntlet-crown-howto-overlay');
+      if (hov) {
+        hov.classList.add('is-hidden');
+        gauntletCrownHowtoVisible = false;
+      }
+      gauntletCrownPregamePhase = null;
+      gauntletCrownLobbyReadyMap = {};
+      if (gauntletCrownCountdownTimer) {
+        clearTimeout(gauntletCrownCountdownTimer);
+        gauntletCrownCountdownTimer = null;
+      }
+      const gccR2 = document.getElementById('gauntlet-crown-countdown');
+      if (gccR2) gccR2.classList.add('is-hidden');
+    }
+    resizeCanvas(); draw(); tick();
+  }
+
+  socket.on('connect', () => {
+    firstCharacterDefaultPromise.then(() => {
+      socket.emit('join-space', { spaceId, nickname: nick, characterId: getPlayCharacterId() }, (res) => {
+        if (!res || !res.ok) {
+          const errMsg = (res && res.error) || 'เข้าร่วมไม่ได้';
+          alert(errMsg);
+          const caseLocked = /เริ่มคดี|ไม่รับผู้เล่น/.test(errMsg);
+          const detectiveReturn = params.get('detectiveReturn') === '1'
+            || (function () { try { return sessionStorage.getItem('detectiveMinigameReturn') === '1'; } catch (e) { return false; } })();
+          if (caseLocked || detectiveReturn) {
+            window.location.replace(buildRoomLobbyReturnHref());
+          } else {
+            window.location.replace(BASE + '/lobby.html');
+          }
+          return;
+        }
+        myId = socket.id;
+        let botSlots = parseInt(res.botSlotCount, 10);
+        if ((!botSlots || botSlots < 1) && res.maxPlayers > 0 && res.maxPlayers < 6) {
+          botSlots = 6 - res.maxPlayers;
+        }
+        if (botSlots > 0) {
+          detectiveCaseFillBots = true;
+          detectiveBotSlotCount = Math.min(6, Math.max(0, botSlots));
+        }
+        if (isDetectiveMinigamePlay()) {
+          try { document.documentElement.classList.add('play-detective-minigame'); } catch (eD) { /* ignore */ }
+        }
+        if (res.quizCarrySettingsSnap && typeof res.quizCarrySettingsSnap === 'object') {
+          quizCarryJoinSettingsSnap = res.quizCarrySettingsSnap;
+          if (res.quizCarrySettingsSnap.carryMapPanelTheme && typeof res.quizCarrySettingsSnap.carryMapPanelTheme === 'object') {
+            setQuizCarryMapPanelThemeFromApi({ carryMapPanelTheme: res.quizCarrySettingsSnap.carryMapPanelTheme });
+          }
+          if (res.quizCarrySettingsSnap.carryEmbedCountdownTheme && typeof res.quizCarrySettingsSnap.carryEmbedCountdownTheme === 'object') {
+            setQuizCarryEmbedCountdownThemeFromApi({ carryEmbedCountdownTheme: res.quizCarrySettingsSnap.carryEmbedCountdownTheme });
+          }
+          if (Array.isArray(res.quizCarrySettingsSnap.carryChoicePlaqueThemes) && res.quizCarrySettingsSnap.carryChoicePlaqueThemes.length) {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueThemes: res.quizCarrySettingsSnap.carryChoicePlaqueThemes });
+          } else if (res.quizCarrySettingsSnap.carryChoicePlaqueTheme && typeof res.quizCarrySettingsSnap.carryChoicePlaqueTheme === 'object') {
+            setQuizCarryChoicePlaqueThemeFromApi({ carryChoicePlaqueTheme: res.quizCarrySettingsSnap.carryChoicePlaqueTheme });
+          }
+          const joinSc = Number(res.quizCarrySettingsSnap.carryChoicePlaqueMapScale);
+          if (Number.isFinite(joinSc)) {
+            quizCarryPlaqueMapScale = Math.max(0.85, Math.min(2.5, joinSc));
+          }
+        }
+        if (previewMode && editorEmbedReturn && res.mapData && res.mapData.gameType === 'lobby') {
+          const q = [];
+          q.push('space=' + encodeURIComponent(spaceId));
+          q.push('nick=' + encodeURIComponent(nick));
+          const mid = params.get('map');
+          if (mid) q.push('map=' + encodeURIComponent(mid));
+          q.push('preview=1');
+          q.push('editorEmbed=1');
+          if (params.get('defaultChar') != null) q.push('defaultChar=' + encodeURIComponent(params.get('defaultChar')));
+          window.location.replace(BASE + '/room-lobby.html?' + q.join('&'));
+          return;
+        }
+        const playMapId = params.get('map');
+        if (playMapId) {
+          fetch(BASE + '/api/maps/' + encodeURIComponent(playMapId))
+            .then(r => r.ok ? r.json() : null)
+            .then(data => {
+              if (data) applyMapAndStart(data, res);
+              else applyMapAndStart(res.mapData, res);
+            })
+            .catch(() => applyMapAndStart(res.mapData, res));
+        } else {
+          applyMapAndStart(res.mapData, res);
+        }
+      });
+    });
+  });
+
+  const LERP = 0.2;
+  socket.on('user-joined', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    const x = Number(data.x);
+    const y = Number(data.y);
+    const px = Number.isFinite(x) ? x : 1;
+    const py = Number.isFinite(y) ? y : 1;
+    others.set(data.id, {
+      x: px, y: py, tx: px, ty: py,
+      direction: data.direction || 'down', nickname: data.nickname,
+      characterId: data.characterId ?? null,
+      playTint: playTintFromPeerId(data.id),
+      gauntletJumpTicks: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletJumpVis: typeof data.gauntletJumpTicks === 'number' ? data.gauntletJumpTicks : 0,
+      gauntletScore: (() => { const s = Number(data.gauntletScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      jumpSurviveEliminated: false,
+      spaceShooterScore: (() => { const s = Number(data.spaceShooterScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossScore: (() => { const s = Number(data.balloonBossScore); return Number.isFinite(s) ? Math.max(0, s) : 0; })(),
+      balloonBossBalloons: (() => {
+        const s = Number(data.balloonBossBalloons);
+        return Number.isFinite(s) ? Math.max(0, Math.floor(s)) : balloonBossBalloonsStartPlay();
+      })(),
+      balloonBossEliminated: !!data.balloonBossEliminated,
+      quizCarryHeld: null,
+    });
+    if (previewFillBots) rebalancePreviewBots();
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('host-changed', (d) => {
+    if (d && d.hostId != null) playHostId = d.hostId;
+    if (quizCarryPregameActive && isQuizCarry()) updateQuizCarryPregameHud();
+  });
+  socket.on('quiz-carry-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    quizCarryLobbyReadyMap = { ...d.readyMap };
+    if (quizCarryPregameActive && isQuizCarry()) {
+      quizCarrySyncGuestReadyIfNeeded();
+      updateQuizCarryPregameHud();
+    }
+  });
+  socket.on('quiz-carry-lobby-started', () => {
+    if (!(previewMode && editorEmbedReturn && isQuizCarry())) return;
+    endQuizCarryEmbedPregameAndStart();
+  });
+  socket.on('gauntlet-crown-lobby-sync', (d) => {
+    if (!d || typeof d.readyMap !== 'object') return;
+    gauntletCrownLobbyReadyMap = { ...d.readyMap };
+    if (gauntletCrownPregamePhase === 'howto') {
+      gauntletCrownSyncGuestReadyIfNeeded();
+      updateGauntletCrownHowtoHud();
+    }
+  });
+  socket.on('gauntlet-crown-lobby-started', () => {
+    if (!isGauntletCrownHeistMapPlay()) return;
+    beginGauntletCrownCountdownThenRun();
+  });
+  socket.on('user-move', (data) => {
+    if (data && myId != null && data.id === myId) {
+      /* Gauntlet: ตำแหน่งอ้างอิงจาก gauntlet-sync + เลอร์ปเท่านั้น — ไม่งั้น echo จาก move จะสแนป me.x/y โดยไม่อัปเดต tx/ty ทำให้เลอร์ปผิดและชนเซิร์ฟเวอร์ไม่ตรง */
+      if (mapData && mapData.gameType === 'gauntlet') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'stack') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'jump_survive') {
+        return;
+      }
+      if (mapData && mapData.gameType === 'space_shooter') {
+        if (data.spaceShooterScore != null) {
+          const s = Number(data.spaceShooterScore);
+          if (Number.isFinite(s)) me.spaceShooterScore = Math.max(0, s);
+        }
+        return;
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) me.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) me.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) me.balloonBossEliminated = !!data.balloonBossEliminated;
+        return;
+      }
+      if (mapData && mapData.gameType === 'quiz_battle') {
+        if (data.x != null) {
+          const x = Number(data.x);
+          if (Number.isFinite(x)) me.x = x;
+        }
+        if (data.y != null) {
+          const y = Number(data.y);
+          if (Number.isFinite(y)) me.y = y;
+        }
+        const s = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+        me.x = s.x;
+        me.y = s.y;
+        if (data.direction) me.direction = data.direction;
+        if (data.characterId != null) me.characterId = data.characterId;
+        playPath = [];
+        return;
+      }
+      if (data.x != null) {
+        const x = Number(data.x);
+        if (Number.isFinite(x)) me.x = x;
+      }
+      if (data.y != null) {
+        const y = Number(data.y);
+        if (Number.isFinite(y)) me.y = y;
+      }
+      if (data.direction) me.direction = data.direction;
+      if (data.characterId != null) me.characterId = data.characterId;
+      playPath = [];
+      return;
+    }
+    const o = others.get(data.id);
+    if (o) {
+      if (mapData && mapData.gameType === 'quiz_battle' && quizBattlePathModeActive(mapData) && !isPreviewBotId(data.id)) {
+        const px = Number(data.x);
+        const py = Number(data.y);
+        if (Number.isFinite(px) && Number.isFinite(py)) {
+          const sn = snapPositionOntoQuizBattlePathIfNeeded(px, py);
+          o.tx = sn.x;
+          o.ty = sn.y;
+          o.x = sn.x;
+          o.y = sn.y;
+        } else {
+          o.tx = data.x;
+          o.ty = data.y;
+        }
+      } else {
+        o.tx = data.x;
+        o.ty = data.y;
+      }
+      o.direction = data.direction || o.direction;
+      if (data.characterId != null) o.characterId = data.characterId;
+      if (mapData && mapData.gameType === 'space_shooter' && data.spaceShooterScore != null) {
+        const s = Number(data.spaceShooterScore);
+        if (Number.isFinite(s)) o.spaceShooterScore = Math.max(0, s);
+      }
+      if (mapData && mapData.gameType === 'balloon_boss') {
+        if (data.balloonBossScore != null) {
+          const s = Number(data.balloonBossScore);
+          if (Number.isFinite(s)) o.balloonBossScore = Math.max(0, s);
+        }
+        if (data.balloonBossBalloons != null) {
+          const b = Number(data.balloonBossBalloons);
+          if (Number.isFinite(b)) o.balloonBossBalloons = Math.max(0, Math.floor(b));
+        }
+        if (data.balloonBossEliminated != null) o.balloonBossEliminated = !!data.balloonBossEliminated;
+      }
+    }
+  });
+  socket.on('user-left', (data) => {
+    if (!data || isPreviewBotId(data.id)) return;
+    others.delete(data.id);
+    if (previewFillBots) rebalancePreviewBots();
+  });
+  socket.on('chat', (data) => {
+    const box = document.getElementById('chat-messages');
+    if (!box) return;
+    const div = document.createElement('div');
+    div.className = 'chat-msg';
+    div.textContent = (data.nickname || '') + ': ' + (data.text || '');
+    box.appendChild(div);
+    box.scrollTop = 1e9;
+  });
+
+  socket.on('quiz-phase', (p) => {
+    if (previewMode) return;
+    if (!p || !mapData || !isQuiz()) return;
+    if (p.text) playQuizText = p.text;
+    playQuizPhaseLocal = p.phase;
+    playQuizPhaseEndsAt = p.endsAt || 0;
+    const phaseEl = document.getElementById('quiz-game-phase-label');
+    const qEl = document.getElementById('quiz-game-question');
+    if (phaseEl) {
+      phaseEl.textContent = p.phase === 'read'
+        ? ('อ่านคำถาม ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''))
+        : ('เดินไปโซน ถูก / ผิด — ข้อ ' + (p.questionIndex || '') + '/' + (p.questionTotal || ''));
+    }
+    if (qEl) qEl.textContent = playQuizText || '';
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.remove('is-hidden');
+    if (playQuizTimerInterval) clearInterval(playQuizTimerInterval);
+    playQuizTimerInterval = setInterval(updatePlayQuizTimerDisplay, 200);
+    updatePlayQuizTimerDisplay();
+    if (!previewMode && isQuiz() && !Object.keys(playLiveQuizScores).length) initPlayLiveQuizScoresZeros();
+  });
+
+  socket.on('quiz-result', (r) => {
+    if (previewMode || !r) return;
+    if (r.scores) {
+      playLiveQuizScores = { ...r.scores };
+      renderPlayQuizScoreboard(playLiveQuizScores);
+    }
+    showPlayQuizFeedback(r);
+  });
+
+  socket.on('quiz-player-state', (st) => {
+    if (previewMode) return;
+    if (!st) return;
+    playQuizPlayerLocal = {
+      cannotTrue: !!st.cannotTrue,
+      cannotFalse: !!st.cannotFalse,
+      eliminated: !!st.eliminated,
+      score: typeof st.score === 'number' ? st.score : (playQuizPlayerLocal.score || 0),
+    };
+  });
+
+  socket.on('quiz-ended', () => {
+    if (previewMode && isQuiz()) return;
+    playQuizPlayerLocal = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+    playQuizPhaseLocal = null;
+    if (playQuizTimerInterval) {
+      clearInterval(playQuizTimerInterval);
+      playQuizTimerInterval = null;
+    }
+    const ov = document.getElementById('quiz-game-overlay');
+    if (ov) ov.classList.add('is-hidden');
+    const panel = document.getElementById('quiz-map-question-panel');
+    if (panel) {
+      panel.classList.add('is-hidden');
+      panel.setAttribute('aria-hidden', 'true');
+    }
+    playQuizText = '';
+    playQuizPhaseEndsAt = 0;
+    playLiveQuizScores = {};
+    hidePlayQuizHud();
+  });
+
+  socket.on('gauntlet-sync', (data) => {
+    if (!mapData || mapData.gameType !== 'gauntlet' || !data) return;
+    applyGauntletTimingFromServer(data);
+    if (Array.isArray(data.obstacles)) {
+      gauntletObstacles = data.obstacles;
+      pushGauntletObsRenderFrame(data.obstacles);
+    }
+    if (!Array.isArray(data.players)) return;
+    data.players.forEach((p) => {
+      if (!p || p.id == null || myId == null) return;
+      const pid = String(p.id);
+      const mid = String(myId);
+      if (pid === mid) {
+        const px = Number(p.x);
+        const py = Number(p.y);
+        if (Number.isFinite(px)) me.tx = px;
+        if (Number.isFinite(py)) me.ty = py;
+        if (p.direction) me.direction = p.direction;
+        const jt = Number(p.gauntletJumpTicks);
+        meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+        meGauntletJumpVis = meGauntletJumpTicks;
+        const sc = Number(p.gauntletScore);
+        me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+        me.gauntletEliminated = !!p.gauntletEliminated;
+      } else {
+        const o = others.get(p.id) ?? others.get(pid);
+        if (o) {
+          const px = Number(p.x);
+          const py = Number(p.y);
+          if (Number.isFinite(px)) o.tx = px;
+          if (Number.isFinite(py)) o.ty = py;
+          if (p.direction) o.direction = p.direction;
+          const jt = Number(p.gauntletJumpTicks);
+          o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+          if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks;
+          const sc = Number(p.gauntletScore);
+          o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+          o.gauntletEliminated = !!p.gauntletEliminated;
+        }
+      }
+    });
+    if (previewFillBots) {
+      applyGauntletPreviewBotsAfterSync();
+      emitGauntletPreviewRowsToServer();
+    }
+  });
+
+  socket.on('gauntlet-ended', (data) => {
+    cancelQuizCarryResultEndAfterTimeup();
+    gauntletEndsAtMs = null;
+    gauntletCrownRunHeldRemote = false;
+    gauntletCrownPregamePhase = null;
+    gauntletCrownLobbyReadyMap = {};
+    if (gauntletCrownCountdownTimer) {
+      clearTimeout(gauntletCrownCountdownTimer);
+      gauntletCrownCountdownTimer = null;
+    }
+    const gcc = document.getElementById('gauntlet-crown-countdown');
+    if (gcc) gcc.classList.add('is-hidden');
+    const hto = document.getElementById('gauntlet-crown-howto-overlay');
+    if (hto) hto.classList.add('is-hidden');
+    gauntletCrownHowtoVisible = false;
+    if (data && data.crownMission) {
+      showGauntletCrownMissionOverlay(data.crownMission);
+      return;
+    }
+    const ov = document.getElementById('gauntlet-ended-overlay');
+    const msgEl = document.getElementById('gauntlet-ended-message');
+    const titleEl = document.getElementById('gauntlet-ended-title');
+    const listEl = document.getElementById('gauntlet-ended-rankings');
+    const btn = document.getElementById('btn-gauntlet-ended-lobby');
+    if (!ov || !msgEl || !listEl) return;
+    if (titleEl) {
+      titleEl.textContent = data && data.reason === 'time' ? 'หมดเวลา · Time up' : 'เกมจบ · Game over';
+    }
+    msgEl.textContent = (data && data.message) || 'เกมพรมแดงจบแล้ว';
+    listEl.innerHTML = '';
+    const ranks = (data && data.rankings) || [];
+    ranks.forEach((r, i) => {
+      const li = document.createElement('li');
+      const isMe = myId != null && r && String(r.id) === String(myId);
+      li.textContent = `${i + 1}. ${(r && r.nickname) || '—'} — ${Math.max(0, Number(r && r.score) || 0)}`;
+      if (isMe) li.className = 'gauntlet-ended-me';
+      listEl.appendChild(li);
+    });
+    ov.classList.remove('is-hidden');
+    function goLobby() {
+      window.location.href = buildRoomLobbyReturnHref();
+    }
+    if (btn) {
+      btn.onclick = () => {
+        if (previewMode && editorEmbedReturn) ov.classList.add('is-hidden');
+        else goLobby();
+      };
+    }
+  });
+
+  socket.on('game-start', (ev) => {
+    if (!ev || !ev.mapId) return;
+    const applySnap = (md) => {
+      mapData = md;
+      if (ev.mapId != null && String(ev.mapId).trim() !== '') {
+        playSessionMapId = String(ev.mapId).trim();
+      }
+      if (mapData.gameType !== 'space_shooter') {
+        spaceShooterGameEnded = false;
+      }
+      if (mapData.gameType !== 'balloon_boss') {
+        balloonBossGameEnded = false;
+      }
+      if (!mapData.lanes && mapData.gameType === 'frogger') mapData.lanes = [];
+      tileSize = mapData.tileSize || 32;
+      gauntletObstacles = [];
+      gauntletObsRenderPrev = [];
+      gauntletObsRenderNext = [];
+      gauntletObsBlendT0 = 0;
+      mapBackgroundImg = null;
+      if (mapData.backgroundImage) {
+        mapBackgroundImg = new Image();
+        mapBackgroundImg.src = mapData.backgroundImage;
+      }
+      normalizeGridImageCellsOnMap(mapData);
+      loadMapGridImages();
+      if (mapData.gameType === 'gauntlet' && ev.peersSnap && Array.isArray(ev.peersSnap)) {
+        ev.peersSnap.forEach((p) => {
+          if (p.id != null && myId != null && String(p.id) === String(myId)) {
+            const px = Number(p.x);
+            const py = Number(p.y);
+            if (Number.isFinite(px)) { me.x = px; me.tx = px; }
+            if (Number.isFinite(py)) { me.y = py; me.ty = py; }
+            me.direction = p.direction || me.direction;
+            const jt = Number(p.gauntletJumpTicks);
+            meGauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+            meGauntletJumpVis = meGauntletJumpTicks;
+            const sc = Number(p.gauntletScore);
+            me.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+            me.gauntletEliminated = !!p.gauntletEliminated;
+          } else {
+            const o = others.get(p.id) ?? others.get(String(p.id));
+            if (o) {
+              const px = Number(p.x);
+              const py = Number(p.y);
+              if (Number.isFinite(px)) { o.x = px; o.tx = px; }
+              if (Number.isFinite(py)) { o.y = py; o.ty = py; }
+              o.direction = p.direction || o.direction;
+              const jt = Number(p.gauntletJumpTicks);
+              o.gauntletJumpTicks = Number.isFinite(jt) ? jt : 0;
+              o.gauntletJumpVis = o.gauntletJumpTicks;
+              const sc = Number(p.gauntletScore);
+              o.gauntletScore = Number.isFinite(sc) ? Math.max(0, sc) : 0;
+              o.gauntletEliminated = !!p.gauntletEliminated;
+            }
+          }
+        });
+      } else {
+        meGauntletJumpTicks = 0;
+        meGauntletJumpVis = 0;
+        me.gauntletScore = 0;
+        me.gauntletEliminated = false;
+        others.forEach((o) => {
+          o.gauntletJumpTicks = 0;
+          o.gauntletJumpVis = 0;
+          o.gauntletScore = 0;
+          o.gauntletEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'gauntlet') {
+        if (ev.gauntletEndsAt != null) {
+          const ge = Number(ev.gauntletEndsAt);
+          gauntletEndsAtMs = Number.isFinite(ge) ? ge : null;
+        } else {
+          gauntletEndsAtMs = null;
+        }
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {});
+        if (String(ev.mapId || '') === GAUNTLET_FACE_RIGHT_MAP_ID) {
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc0 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc0) gcc0.classList.add('is-hidden');
+          setTimeout(function () { showGauntletCrownHowtoOverlay(); }, 60);
+        } else {
+          const hto2 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto2) hto2.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+          gauntletCrownPregamePhase = null;
+          gauntletCrownLobbyReadyMap = {};
+          if (gauntletCrownCountdownTimer) {
+            clearTimeout(gauntletCrownCountdownTimer);
+            gauntletCrownCountdownTimer = null;
+          }
+          const gcc1 = document.getElementById('gauntlet-crown-countdown');
+          if (gcc1) gcc1.classList.add('is-hidden');
+        }
+      } else {
+        gauntletEndsAtMs = null;
+        const skipHideCrownShell = mapData.gameType === 'jump_survive' && isJumpSurviveMissionUiMapPlay();
+        if (!skipHideCrownShell) {
+          const hto3 = document.getElementById('gauntlet-crown-howto-overlay');
+          if (hto3) hto3.classList.add('is-hidden');
+          gauntletCrownHowtoVisible = false;
+        }
+        gauntletCrownPregamePhase = null;
+        gauntletCrownLobbyReadyMap = {};
+        if (gauntletCrownCountdownTimer) {
+          clearTimeout(gauntletCrownCountdownTimer);
+          gauntletCrownCountdownTimer = null;
+        }
+        const gcc2 = document.getElementById('gauntlet-crown-countdown');
+        if (gcc2) gcc2.classList.add('is-hidden');
+      }
+      if (mapData.gameType !== 'gauntlet') {
+        me.tx = null;
+        me.ty = null;
+      }
+      const gauntletOv = document.getElementById('gauntlet-ended-overlay');
+      if (gauntletOv) gauntletOv.classList.add('is-hidden');
+      const gcmOv = document.getElementById('gauntlet-crown-mission-overlay');
+      if (gcmOv) gcmOv.classList.add('is-hidden');
+      if (mapData.gameType === 'stack') {
+        if (!mapData.stackReleaseArea) mapData.stackReleaseArea = [];
+        if (!mapData.stackLandArea) mapData.stackLandArea = [];
+        rebalancePreviewBots();
+        lastStackTickMs = performance.now();
+        resetStackMinigameState();
+        fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+          .then((r) => (r.ok ? r.json() : null))
+          .then((t) => {
+            if (t) applyGauntletTimingFromServer(t);
+            else reapplyStackMiniSizingFromGlobals();
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          })
+          .catch(() => {
+            if (stackMini && isStack()) stackMini.phaseSpeed = playStackSwingHz;
+          });
+      } else {
+        stackMini = null;
+      }
+      if (mapData.gameType === 'jump_survive') {
+        if (!Array.isArray(mapData.jumpSurvivePlatforms)) mapData.jumpSurvivePlatforms = [];
+        if (!mapData.jumpSurvivePlatformArea) mapData.jumpSurvivePlatformArea = [];
+        normalizeJumpSurvivePlatformAreaInPlay(mapData);
+        jumpSurviveEliminated = false;
+        jumpSurviveGameEnded = false;
+        if (jumperMissionCountdownTimer) {
+          clearTimeout(jumperMissionCountdownTimer);
+          jumperMissionCountdownTimer = null;
+        }
+        if (isJumpSurviveMissionUiMapPlay()) {
+          jumpSurviveMissionPhase = 'howto';
+          hideConflictingOverlaysForJumpSurviveMission();
+          applyJumpSurviveJumperPanelImages();
+          fetch(BASE + '/api/game-timing?_=' + Date.now(), { cache: 'no-store' })
+            .then((r) => (r.ok ? r.json() : null))
+            .then((t) => { if (t) applyGauntletTimingFromServer(t); })
+            .catch(() => {});
+          setTimeout(function () { showJumpSurviveMissionHowtoOverlay(); }, 60);
+        } else {
+          jumpSurviveMissionPhase = null;
+          jumpSurviveInitRuntime();
+        }
+      }
+      if (mapData.gameType === 'space_shooter') {
+        spaceShooterGameEnded = false;
+        normalizeShooterSpawnSlotsInPlay(mapData);
+        spaceShooterBullets = [];
+        spaceShooterAsteroids = [];
+        spaceShooterPopups = [];
+        spaceShooterLastTickMs = performance.now();
+        spaceShooterSpawnAccMs = 0;
+        spaceShooterFireCd = 0;
+        spaceShooterSessionStartMs = performance.now();
+        spaceShooterLastMoveEmit = 0;
+      }
+      if (mapData.gameType === 'balloon_boss') {
+        balloonBossGameEnded = false;
+        normalizeBalloonBossPlayerSlotsInPlay(mapData);
+        balloonBossPendingShots = [];
+        balloonBossPlayerBullets = [];
+        balloonBossBossBullets = [];
+        balloonBossHitFx = [];
+        balloonBossLastTickMs = performance.now();
+        balloonBossPlayerFireCd = 0;
+        balloonBossSessionStartMs = performance.now();
+        balloonBossLastMoveEmit = 0;
+        balloonBossBossFireAcc = 0;
+        me.balloonBossScore = 0;
+        me.balloonBossBalloons = balloonBossBalloonsStartPlay();
+        me.balloonBossEliminated = false;
+        others.forEach((o) => {
+          o.balloonBossScore = 0;
+          o.balloonBossBalloons = balloonBossBalloonsStartPlay();
+          o.balloonBossEliminated = false;
+        });
+      }
+      if (mapData.gameType === 'quiz_battle') {
+        if (!mapData.quizBattleDomeArea) mapData.quizBattleDomeArea = [];
+        if (!mapData.quizBattlePathArea) mapData.quizBattlePathArea = [];
+        normalizeQuizBattlePathInPlay(mapData);
+        normalizeQuizBattleDomeInPlay(mapData);
+        if (quizBattlePathModeActive(mapData)) {
+          const ms = snapPositionOntoQuizBattlePathIfNeeded(me.x, me.y);
+          me.x = ms.x;
+          me.y = ms.y;
+          others.forEach((o) => {
+            const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+            o.x = s.x;
+            o.y = s.y;
+          });
+        }
+      }
+      var modeLabel = isFrogger() ? ' | โหมดกบข้ามถนน'
+        : (isGauntlet() ? ' | พรมแดงสุดท้าย (Last Light)'
+          : (isLobby() ? ' | โถงรอ' : (isQuiz() ? ' | ตอบคำถาม' : (isQuizCarry() ? ' | หยิบคำตอบมาวางกลาง' : (isQuizBattle() ? ' | Quiz Battle · โดม E' : (isStack() ? ' | Stack ซ้อนตึก' : (isJumpSurvive() ? ' | กระโดดให้รอด' : (isSpaceShooter() ? ' | ยิงยานอวกาศ' : (isBalloonBoss() ? ' | ลูกโป้งยิงบอส' : '')))))))));
+      var prevTag = previewMode ? '[ทดสอบ] ' : '';
+      document.getElementById('room-id').textContent = prevTag + spaceId + modeLabel;
+      if (isQuiz()) setupPlayQuizUi();
+      else if (isQuizCarry()) setupPlayQuizCarryUi();
+      else if (isQuizBattle()) setupPlayQuizBattleUi();
+      else teardownPlayQuizUi();
+      resizeCanvas();
+      if (mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'gauntlet') {
+        applyGauntletPreviewSpawnLayout(true);
+        emitGauntletPreviewRowsToServer();
+      }
+      if (previewFillBots && mapData.gameType === 'jump_survive') {
+        applyJumpSurvivePreviewSpawnLayout(true);
+      }
+      if (previewFillBots && mapData.gameType === 'space_shooter') {
+        applySpaceShooterSpawnLayoutPlay();
+      }
+      if (previewFillBots && mapData.gameType === 'balloon_boss') {
+        applyBalloonBossSpawnLayoutPlay();
+      }
+    };
+    fetch(BASE + '/api/maps/' + encodeURIComponent(ev.mapId))
+      .then((r) => (r.ok ? r.json() : null))
+      .then((md) => { if (md) applySnap(md); });
+  });
+
+  function resizeCanvas() {
+    const vw = window.innerWidth || document.documentElement.clientWidth || 800;
+    const vh = window.innerHeight || document.documentElement.clientHeight || 600;
+    const header = document.querySelector('.game-header');
+    const headerH = header && header.offsetHeight ? header.offsetHeight : 48;
+    const parent = canvas && canvas.parentElement;
+    let cw = canvas.clientWidth || 0;
+    let ch = canvas.clientHeight || 0;
+    if (parent && parent.clientWidth > 80) cw = Math.max(cw, parent.clientWidth);
+    if (parent && parent.clientHeight > 80) ch = Math.max(ch, parent.clientHeight);
+    if (ch < 120) ch = Math.max(240, vh - headerH - 6);
+    if (cw < 120) cw = Math.max(320, vw);
+    canvas.width = Math.max(320, cw);
+    canvas.height = Math.max(240, ch);
+    syncQuizCarryEmbedCountdownLayout();
+  }
+
+  // ให้ scroll wheel ใช้ซูมเข้า/ออกแบบง่าย ๆ
+  canvas.addEventListener('wheel', (e) => {
+    e.preventDefault();
+    const factor = e.deltaY < 0 ? 1.1 : 0.9;
+    zoom = Math.max(0.7, Math.min(2.5, zoom * factor));
+  }, { passive: false });
+  canvas.addEventListener('click', (e) => {
+    if (!mapData || !isStack() || isChatFocused()) return;
+    tryHumanStackDrop();
+  });
+  canvas.addEventListener('dblclick', (e) => {
+    if (!mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss() || isChatFocused() || isQuizCarryEmbedCountdownBlockingMovement()) return;
+    const r = canvas.getBoundingClientRect();
+    const sx = e.clientX - r.left;
+    const sy = e.clientY - r.top;
+    const camX = me.x * tileSize;
+    const camY = me.y * tileSize;
+    const gx = (sx - canvas.width / 2) / zoom + camX;
+    const gy = (sy - canvas.height / 2) / zoom + camY;
+    const tx = Math.floor(gx / tileSize);
+    const ty = Math.floor(gy / tileSize);
+    const mw = mapData.width || 20, mh = mapData.height || 15;
+    if (tx < 0 || tx >= mw || ty < 0 || ty >= mh) return;
+    if (!canWalkLikeLobby(tx + 0.5, ty + 0.5)) return;
+    const path = pathfindPlay(me.x, me.y, tx + 0.5, ty + 0.5);
+    if (path.length <= 1) return;
+    playPath = path.slice(1);
+  });
+
+  function getCharacterFootprintWH(md) {
+    if (!md) return { cw: 1, ch: 1 };
+    let cw = Math.floor(Number(md.characterCellsW));
+    let ch = Math.floor(Number(md.characterCellsH));
+    const hasW = Number.isFinite(cw) && cw >= 1;
+    const hasH = Number.isFinite(ch) && ch >= 1;
+    if (hasW && hasH) {
+      return { cw: Math.max(1, Math.min(4, cw)), ch: Math.max(1, Math.min(4, ch)) };
+    }
+    const leg = Math.max(1, Math.min(4, Math.floor(Number(md.characterCells)) || 1));
+    return { cw: leg, ch: leg };
+  }
+
+  /**
+   * ขนาดช่องที่ใช้ชนกำแพง (objects=1) เท่านั้น — ชิดเท้า (ล่าง) + กลางแนวนอน · เล็กกว่า footprint = ส่วนบนไม่ติดกำแพง
+   */
+  function getCharacterCollisionFootprintWH(md) {
+    const { cw, ch } = getCharacterFootprintWH(md);
+    let colW = Math.floor(Number(md.characterCollisionW));
+    let colH = Math.floor(Number(md.characterCollisionH));
+    if (!Number.isFinite(colW) || colW < 1) colW = cw;
+    if (!Number.isFinite(colH) || colH < 1) colH = ch;
+    colW = Math.max(1, Math.min(cw, colW));
+    colH = Math.max(1, Math.min(ch, colH));
+    return { cw, ch, colW, colH };
+  }
+
+  /** กันตัวละคร footprint ล้นออกนอกแมป — เดิมใช้ w-0.01 ทำให้ cw/ch>1 ชนขอบแล้วตรรกะเดินค้าง */
+  function clampPlayEntityFootprintToMap(oEnt, md) {
+    if (!oEnt || !md) return;
+    const w = md.width || 20, h = md.height || 15;
+    const { cw, ch } = getCharacterFootprintWH(md);
+    const maxX = Math.max(0, w - cw + 0.999);
+    const maxY = Math.max(0, h - ch + 0.999);
+    if (!Number.isFinite(oEnt.x)) oEnt.x = 0.5;
+    if (!Number.isFinite(oEnt.y)) oEnt.y = 0.5;
+    oEnt.x = Math.max(0, Math.min(maxX, oEnt.x));
+    oEnt.y = Math.max(0, Math.min(maxY, oEnt.y));
+  }
+
+  /** แยกบอท preview ที่ทับกันบนจุดเดียว (มักชนกันที่ขอบแมป) */
+  function separateClumpedPreviewBots() {
+    if (!previewFillBots || !mapData) return;
+    const ids = [...others.keys()].filter(isPreviewBotId);
+    const minD = 0.52;
+    const pushAmt = MOVE_SPEED * 0.5;
+    for (let i = 0; i < ids.length; i++) {
+      for (let j = i + 1; j < ids.length; j++) {
+        const a = others.get(ids[i]);
+        const b = others.get(ids[j]);
+        if (!a || !b) continue;
+        let ddx = b.x - a.x, ddy = b.y - a.y;
+        let d = Math.sqrt(ddx * ddx + ddy * ddy);
+        if (d >= minD) continue;
+        if (d < 1e-5) {
+          ddx = (i + j * 2) % 2 === 0 ? 1 : -1;
+          ddy = ((i + j) % 3) - 1;
+          d = Math.sqrt(ddx * ddx + ddy * ddy) || 1;
+        }
+        const ux = -ddx / d, uy = -ddy / d;
+        const vx = ddx / d, vy = ddy / d;
+        const ax2 = a.x + ux * pushAmt, ay2 = a.y + uy * pushAmt;
+        const bx2 = b.x + vx * pushAmt, by2 = b.y + vy * pushAmt;
+        if (canWalkLikeLobbyForBot(ax2, ay2, a.x, a.y, a)) { a.x = ax2; a.y = ay2; }
+        if (canWalkLikeLobbyForBot(bx2, by2, b.x, b.y, b)) { b.x = bx2; b.y = by2; }
+        clampPlayEntityFootprintToMap(a, mapData);
+        clampPlayEntityFootprintToMap(b, mapData);
+      }
+    }
+  }
+
+  function quizTilesFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch } = getCharacterFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const maxTx = Math.min(w - 1, minTx + cw - 1);
+    const maxTy = Math.min(h - 1, minTy + ch - 1);
+    for (let ty = minTy; ty <= maxTy; ty++) {
+      for (let tx = minTx; tx <= maxTx; tx++) {
+        if (tx >= 0 && ty >= 0) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  /** ร่าง (cw×ch) ของผู้เล่นที่ (px,py) ครอบคลุมช่อง (tx,ty) หรือไม่ — ใช้กับ blockPlayer แทนการเช็คแค่มุมซ้ายบน */
+  function playEntityFootprintContainsTile(px, py, tx, ty) {
+    return quizTilesFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /**
+   * กล่องตรวจโซนห้ามซ้อน (blockPlayer) — วางเหมือนชนกำแพง: กลางแนวนอน + ชิดเท้า
+   * blockPlayerSeparationW/H: 0 = ใช้เต็มความกว้าง/สูงตัว · ค่าอื่น = จำกัด 1..cw / 1..ch
+   * รองรับ legacy blockPlayerSeparation เมื่อยังไม่มี W/H ใน JSON
+   */
+  function resolveBlockPlayerNoOverlapBoxWH(md) {
+    const m = md || mapData;
+    if (!m) return { cw: 1, ch: 1, boxW: 1, boxH: 1 };
+    const { cw, ch } = getCharacterFootprintWH(m);
+    let w = m.blockPlayerSeparationW != null && m.blockPlayerSeparationW !== '' ? Math.floor(Number(m.blockPlayerSeparationW)) : NaN;
+    let h = m.blockPlayerSeparationH != null && m.blockPlayerSeparationH !== '' ? Math.floor(Number(m.blockPlayerSeparationH)) : NaN;
+    const leg = m.blockPlayerSeparation != null && m.blockPlayerSeparation !== '' ? Math.floor(Number(m.blockPlayerSeparation)) : NaN;
+    const hasW = Number.isFinite(w) && w >= 0;
+    const hasH = Number.isFinite(h) && h >= 0;
+    if (!hasW && !hasH && Number.isFinite(leg) && leg >= 1) {
+      w = Math.min(leg, cw);
+      h = Math.min(leg, ch);
+    } else {
+      if (!hasW) w = 0;
+      if (!hasH) h = 0;
+    }
+    const boxW = !w || w <= 0 ? cw : Math.max(1, Math.min(cw, w));
+    const boxH = !h || h <= 0 ? ch : Math.max(1, Math.min(ch, h));
+    return { cw, ch, boxW, boxH };
+  }
+
+  /** ช่องกริดที่ถือว่า “ผู้เล่นที่ (px,py) กินพื้นที่” สำหรับตรวจโซน blockPlayer — กล่องเดียวกับแนวชนกำแพง */
+  function quizTilesBlockPlayerPeerFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, boxW, boxH } = resolveBlockPlayerNoOverlapBoxWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - boxW) / 2);
+    const offY = minTy + (ch - boxH);
+    for (let ty = offY; ty < offY + boxH; ty++) {
+      for (let tx = offX; tx < offX + boxW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function playPeerBlockPlayerOccupiesTile(px, py, tx, ty) {
+    return quizTilesBlockPlayerPeerFootprintPlay(px, py).has(tx + ',' + ty);
+  }
+
+  /** Footprint ชนกำแพง (objects=1) เท่านั้น — hub / interactive / blockPlayer / quiz ใช้ quizTilesFootprintPlay = เต็ม characterCells */
+  function quizTilesWallCollisionFootprintPlay(px, py) {
+    const s = new Set();
+    if (!mapData) return s;
+    if (typeof px !== 'number' || typeof py !== 'number' || !Number.isFinite(px) || !Number.isFinite(py)) return s;
+    const { cw, ch, colW, colH } = getCharacterCollisionFootprintWH(mapData);
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const minTx = Math.floor(px);
+    const minTy = Math.floor(py);
+    const offX = minTx + Math.floor((cw - colW) / 2);
+    const offY = minTy + (ch - colH);
+    for (let ty = offY; ty < offY + colH; ty++) {
+      for (let tx = offX; tx < offX + colW; tx++) {
+        if (tx >= 0 && ty >= 0 && tx < w && ty < h) s.add(tx + ',' + ty);
+      }
+    }
+    return s;
+  }
+
+  function quizAnswerTileForbiddenForLock(lock, tx, ty) {
+    if (!lock || lock.eliminated) return false;
+    if (!mapData) return false;
+    const qt = mapData.quizTrueArea;
+    const qf = mapData.quizFalseArea;
+    if (lock.cannotTrue && qt && qt[ty] && qt[ty][tx] === 1) return true;
+    if (lock.cannotFalse && qf && qf[ty] && qf[ty][tx] === 1) return true;
+    return false;
+  }
+
+  function quizAnswerTileForbiddenPlay(tx, ty) {
+    if (!playQuizPlayerLocal) return false;
+    return quizAnswerTileForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, tx, ty);
+  }
+
+  /** ยืนทับโซนต้องห้ามเมื่อโดนล็อก — ใช้กับ pathfind ปลายทาง / คลิก */
+  function quizLockFootprintBlocksForLock(lock, px, py) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    for (const k of quizTilesFootprintPlay(px, py)) {
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockFootprintBlocksPlay(px, py) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockFootprintBlocksForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, px, py);
+  }
+
+  /** บล็อกเฉพาะการ «เข้า» ช่องตอบใหม่ — ให้เดินออกจากโซนได้ถ้าเคยยืนผิดแล้ว */
+  function quizLockWouldEnterForbiddenForLock(lock, ox, oy, nx, ny) {
+    if (!mapData || !isQuiz() || !lock || lock.eliminated) return false;
+    const fromS = quizTilesFootprintPlay(ox, oy);
+    const toS = quizTilesFootprintPlay(nx, ny);
+    for (const k of toS) {
+      if (fromS.has(k)) continue;
+      const p = k.split(',');
+      const txi = +p[0], tyi = +p[1];
+      if (quizAnswerTileForbiddenForLock(lock, txi, tyi)) return true;
+    }
+    return false;
+  }
+
+  function quizLockWouldEnterForbiddenPlay(ox, oy, nx, ny) {
+    if (!playQuizPlayerLocal) return false;
+    return quizLockWouldEnterForbiddenForLock({
+      cannotTrue: !!playQuizPlayerLocal.cannotTrue,
+      cannotFalse: !!playQuizPlayerLocal.cannotFalse,
+      eliminated: !!playQuizPlayerLocal.eliminated,
+    }, ox, oy, nx, ny);
+  }
+
+  function botQuizLock(o) {
+    return {
+      cannotTrue: !!(o && o.quizCannotTrue),
+      cannotFalse: !!(o && o.quizCannotFalse),
+      eliminated: false,
+    };
+  }
+
+  /** Same walkability as room-lobby `canWalkLobby` (LobbyA / hall). */
+  function canWalkLikeLobby(x, y, fromX, fromY) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTiles = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTiles) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTiles.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, o] of others) {
+          if (playPeerBlockPlayerOccupiesTile(o.x, o.y, tx, ty)) return false;
+        }
+      }
+    }
+    if (isQuiz() && playQuizPlayerLocal && !playQuizPlayerLocal.eliminated) {
+      const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+      if (hasFrom) {
+        if (quizLockWouldEnterForbiddenPlay(fromX, fromY, x, y)) return false;
+      } else if (quizLockFootprintBlocksPlay(x, y)) {
+        return false;
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  function canWalkLikeLobbyForBot(x, y, fromX, fromY, o) {
+    if (!mapData || !mapData.objects) return false;
+    if (typeof x !== 'number' || typeof y !== 'number' || !Number.isFinite(x) || !Number.isFinite(y)) return false;
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const wallTilesB = quizTilesWallCollisionFootprintPlay(x, y);
+    for (const k of wallTilesB) {
+      const p = k.split(',');
+      const tx = +p[0], ty = +p[1];
+      if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+      const row = mapData.objects[ty];
+      if (!row || row[tx] === 1) return false;
+    }
+    if (wallTilesB.size === 0) return false;
+    const bp = mapData.blockPlayer;
+    if (bp) {
+      for (const k of quizTilesFootprintPlay(x, y)) {
+        const p = k.split(',');
+        const tx = +p[0], ty = +p[1];
+        if (!bp[ty] || bp[ty][tx] !== 1) continue;
+        for (const [, peer] of others) {
+          if (o && peer === o) continue;
+          if (playPeerBlockPlayerOccupiesTile(peer.x, peer.y, tx, ty)) return false;
+        }
+        if (o && playPeerBlockPlayerOccupiesTile(me.x, me.y, tx, ty)) return false;
+      }
+    }
+    if (isQuiz()) {
+      const lock = botQuizLock(o);
+      if (lock.cannotTrue || lock.cannotFalse) {
+        const hasFrom = typeof fromX === 'number' && typeof fromY === 'number' && !Number.isNaN(fromX) && !Number.isNaN(fromY);
+        if (hasFrom) {
+          if (quizLockWouldEnterForbiddenForLock(lock, fromX, fromY, x, y)) return false;
+        } else if (quizLockFootprintBlocksForLock(lock, x, y)) {
+          return false;
+        }
+      }
+    }
+    if (isQuizCarry() && quizCarryFootprintOverlapsHub(x, y)) return false;
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      if (!quizBattleFootprintFullyOnPath(mapData, x, y)) return false;
+    }
+    return true;
+  }
+
+  /** ถ้าสปอว์น/โหลดมาทับโซน hub ให้หาจุดใกล้ ๆ ที่ footprint ไม่ทับ hub */
+  function snapPositionOutOfQuizCarryHubIfNeeded(x, y) {
+    if (!mapData || !isQuizCarry()) return { x, y };
+    if (!quizCarryFootprintOverlapsHub(x, y)) return { x, y };
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const maxR = Math.max(w, h) + 6;
+    for (let r = 1; r <= maxR; r++) {
+      for (let dy = -r; dy <= r; dy++) {
+        for (let dx = -r; dx <= r; dx++) {
+          if (Math.max(Math.abs(dx), Math.abs(dy)) !== r) continue;
+          const nx = x + dx * 0.45;
+          const ny = y + dy * 0.45;
+          if (nx < 0 || ny < 0 || nx > w - 0.02 || ny > h - 0.02) continue;
+          if (quizCarryFootprintOverlapsHub(nx, ny)) continue;
+          if (!canWalkLikeLobby(nx, ny, NaN, NaN)) continue;
+          return { x: nx, y: ny };
+        }
+      }
+    }
+    return { x, y };
+  }
+
+  function stepPreviewBotAlongPath(o, w, h) {
+    const path = o.botPath;
+    if (!path || !path.length) return;
+    const way = path[0];
+    const dx = way.x - o.x, dy = way.y - o.y;
+    const dist = Math.sqrt(dx * dx + dy * dy);
+    if (dist <= PATH_ARRIVE_THRESH) {
+      path.shift();
+      while (path.length > 0) {
+        const w2 = path[0];
+        const ux = w2.x - o.x, uy = w2.y - o.y;
+        if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+        path.shift();
+      }
+      clampPlayEntityFootprintToMap(o, mapData);
+      return;
+    }
+    const len = dist || 1;
+    const pathStepMul = (previewFillBots && editorEmbedReturn) ? 0.56 : 1;
+    const step = Math.min(MOVE_SPEED * 1.28 * pathStepMul, len);
+    const nx = o.x + (dx / len) * step;
+    const ny = o.y + (dy / len) * step;
+    if (Math.abs(dy) > Math.abs(dx)) o.direction = dy > 0 ? 'down' : 'up';
+    else if (Math.abs(dx) > 1e-6) o.direction = dx > 0 ? 'right' : 'left';
+    const ox = o.x, oy = o.y;
+    const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+    if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+      o.x = nx;
+      o.y = ny;
+    } else if (!pathStrict) {
+      if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+        o.x = nx;
+      } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+        o.y = ny;
+      } else {
+        /* เส้นตรงไป waypoint อาจตัดมุม hub / block — ลองก้าวแนวแกนตามทิศหลักอย่างใดอย่างหนึ่ง */
+        const cstep = Math.min(MOVE_SPEED * 1.2 * pathStepMul, Math.max(Math.abs(dx), Math.abs(dy), 1e-4));
+        const sx = dx > 1e-4 ? 1 : dx < -1e-4 ? -1 : 0;
+        const sy = dy > 1e-4 ? 1 : dy < -1e-4 ? -1 : 0;
+        const tryAxisX = () => {
+          if (sx === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x + sx * cstep, o.y, o.x, o.y, o)) return false;
+          o.x += sx * cstep;
+          return true;
+        };
+        const tryAxisY = () => {
+          if (sy === 0) return false;
+          if (!canWalkLikeLobbyForBot(o.x, o.y + sy * cstep, o.x, o.y, o)) return false;
+          o.y += sy * cstep;
+          return true;
+        };
+        if (Math.abs(dx) >= Math.abs(dy)) {
+          if (!tryAxisX()) tryAxisY();
+        } else {
+          if (!tryAxisY()) tryAxisX();
+        }
+      }
+    }
+    clampPlayEntityFootprintToMap(o, mapData);
+    if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) {
+      o.botIsWalking = true;
+      o.botPathStuckTicks = 0;
+    } else {
+      o.botPathStuckTicks = (o.botPathStuckTicks | 0) + 1;
+      if ((o.botPathStuckTicks | 0) >= 20) {
+        o.botPathStuckTicks = 0;
+        if (path.length) path.shift();
+        if (isQuizCarry() && previewFillBots) o.botQuizCarryPathfindAfter = 0;
+      }
+    }
+  }
+
+  function pickRandomPreviewBotWanderDir() {
+    const dirs = [[0, -1], [0, 1], [-1, 0], [1, 0]];
+    return dirs[Math.floor(Math.random() * dirs.length)];
+  }
+
+  function stepPreviewBots() {
+    if (!playBotsEnabled() || !mapData || isFrogger() || isGauntlet() || isStack() || isJumpSurvive() || isSpaceShooter() || isBalloonBoss()) return;
+    if (isQuizCarry()) {
+      stepQuizCarryPreviewBots();
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const now = Date.now();
+    const inAnswerPhase = previewMode && isQuiz() && previewQuizStep === 'answer';
+    others.forEach((o, id) => {
+      if (!isPreviewBotId(id)) return;
+      o.botIsWalking = false;
+      if (inAnswerPhase && o.botPath && o.botPath.length > 0 && !o.botAnswerWander) {
+        stepPreviewBotAlongPath(o, w, h);
+        return;
+      }
+      if (inAnswerPhase && o.botPath && o.botPath.length === 0 && !o.botAnswerWander) {
+        return;
+      }
+      /* ก่อนตอบ / พัก / บอทสับสน: เดินทุกเฟรมตามทิศ (เหมือนผู้เล่นกดค้าง) — เดิมรอเป็นจังหวะแล้วก้าวทีละครั้งเลยดูกระตุก */
+      if (o.botWanderDx == null || o.botWanderDy == null || (o.botWanderDx === 0 && o.botWanderDy === 0)) {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+      }
+      if (typeof o.botWanderNextTurn !== 'number') o.botWanderNextTurn = now + 600;
+      if (now >= o.botWanderNextTurn) {
+        o.botWanderNextTurn = now + 650 + Math.floor(Math.random() * 2200);
+        if (Math.random() < 0.55) {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+        }
+      }
+      const accX = o.botWanderDx;
+      const accY = o.botWanderDy;
+      if (Math.abs(accY) > Math.abs(accX)) o.direction = accY > 0 ? 'down' : 'up';
+      else if (accX !== 0) o.direction = accX > 0 ? 'right' : 'left';
+      const step = MOVE_SPEED;
+      const nx = o.x + accX * step;
+      const ny = o.y + accY * step;
+      const ox = o.x, oy = o.y;
+      const pathStrictW = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobbyForBot(nx, ny, o.x, o.y, o)) {
+        o.x = nx;
+        o.y = ny;
+      } else if (!pathStrictW) {
+        if (canWalkLikeLobbyForBot(nx, o.y, o.x, o.y, o)) {
+          o.x = nx;
+        } else if (canWalkLikeLobbyForBot(o.x, ny, o.x, o.y, o)) {
+          o.y = ny;
+        } else {
+          const d = pickRandomPreviewBotWanderDir();
+          o.botWanderDx = d[0];
+          o.botWanderDy = d[1];
+          o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+        }
+      } else {
+        const d = pickRandomPreviewBotWanderDir();
+        o.botWanderDx = d[0];
+        o.botWanderDy = d[1];
+        o.botWanderNextTurn = now + 200 + Math.floor(Math.random() * 600);
+      }
+      if (!Number.isFinite(o.x)) o.x = 0.5;
+      if (!Number.isFinite(o.y)) o.y = 0.5;
+      clampPlayEntityFootprintToMap(o, mapData);
+      if (Math.abs(o.x - ox) > 1e-5 || Math.abs(o.y - oy) > 1e-5) o.botIsWalking = true;
+    });
+    separateClumpedPreviewBots();
+    [...others.keys()].filter(isPreviewBotId).forEach((bid) => {
+      const ob = others.get(bid);
+      if (ob) clampPlayEntityFootprintToMap(ob, mapData);
+    });
+    if (isQuizBattle() && quizBattlePathModeActive(mapData)) {
+      others.forEach((o, id) => {
+        if (!isPreviewBotId(id)) return;
+        const s = snapPositionOntoQuizBattlePathIfNeeded(o.x, o.y);
+        o.x = s.x;
+        o.y = s.y;
+        o.tx = s.x;
+        o.ty = s.y;
+      });
+    }
+  }
+
+  /** A* เหมือน room-lobby — double-click ไปจุดบนแผนที่ */
+  function pathfindPlay(fromX, fromY, toX, toY) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobby(tx + 0.5, ty + 0.5)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobby(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  function pathfindPlayForBot(fromX, fromY, toX, toY, o) {
+    if (!mapData) return [];
+    const w = mapData.width || 20, h = mapData.height || 15;
+    const fx = Math.floor(fromX), fy = Math.floor(fromY);
+    const tx = Math.floor(toX), ty = Math.floor(toY);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h || !canWalkLikeLobbyForBot(tx + 0.5, ty + 0.5, NaN, NaN, o)) return [];
+    if (fx === tx && fy === ty) return [{ x: tx + 0.5, y: ty + 0.5 }];
+    const key = (gx, gy) => gx + ',' + gy;
+    const open = [{ gx: fx, gy: fy, f: 0, g: 0 }];
+    const closed = new Set();
+    const cameFrom = {};
+    const gScore = { [key(fx, fy)]: 0 };
+    const heuristic = (ax, ay) => Math.abs(ax - tx) + Math.abs(ay - ty);
+    const dirs = [{ dx: 0, dy: -1 }, { dx: 1, dy: 0 }, { dx: 0, dy: 1 }, { dx: -1, dy: 0 }];
+    while (open.length) {
+      open.sort((a, b) => a.f - b.f);
+      const cur = open.shift();
+      const ck = key(cur.gx, cur.gy);
+      if (closed.has(ck)) continue;
+      closed.add(ck);
+      if (cur.gx === tx && cur.gy === ty) {
+        const path = [];
+        let u = cur;
+        while (u) {
+          path.unshift({ x: u.gx + 0.5, y: u.gy + 0.5 });
+          u = cameFrom[key(u.gx, u.gy)];
+        }
+        return path;
+      }
+      for (const d of dirs) {
+        const nx = cur.gx + d.dx, ny = cur.gy + d.dy;
+        if (nx < 0 || nx >= w || ny < 0 || ny >= h) continue;
+        if (!canWalkLikeLobbyForBot(nx + 0.5, ny + 0.5, cur.gx + 0.5, cur.gy + 0.5, o)) continue;
+        const nk = key(nx, ny);
+        if (closed.has(nk)) continue;
+        const g = (gScore[ck] ?? Infinity) + 1;
+        if (g >= (gScore[nk] ?? Infinity)) continue;
+        gScore[nk] = g;
+        cameFrom[nk] = cur;
+        open.push({ gx: nx, gy: ny, f: g + heuristic(nx, ny), g });
+      }
+    }
+    return [];
+  }
+
+  let playPath = [];
+
+  function drawGauntletLaserColumnScreen(rx, ry, rw, rh) {
+    ctx.save();
+    ctx.fillStyle = gauntletLaserFillColor;
+    ctx.fillRect(rx, ry, rw, rh);
+    const topRec = gauntletLaserTopUrl ? ensureGauntletAssetImage(gauntletLaserTopUrl) : null;
+    const botRec = gauntletLaserBottomUrl ? ensureGauntletAssetImage(gauntletLaserBottomUrl) : null;
+    const lineRec = gauntletLaserLineUrl ? ensureGauntletAssetImage(gauntletLaserLineUrl) : null;
+    let topH = 0;
+    let botH = 0;
+    if (topRec && topRec.img.complete && topRec.img.naturalWidth > 0) {
+      topH = Math.min(rh * 0.4, rw * topRec.img.naturalHeight / topRec.img.naturalWidth);
+    }
+    if (botRec && botRec.img.complete && botRec.img.naturalWidth > 0) {
+      botH = Math.min(rh * 0.4, rw * botRec.img.naturalHeight / botRec.img.naturalWidth);
+    }
+    /* เส้นกลาง tile ทั้งความสูงคอลัมน์ แล้วค่อยวาดหัว/ท้ายทับ — ให้ลำแสงต่อเนื่องแบบสินทรัพย์รวม (รูปอ้างอิง) */
+    if (lineRec && lineRec.img.complete && lineRec.img.naturalWidth > 0 && rh > 1) {
+      const iw = lineRec.img.naturalWidth;
+      const ih = lineRec.img.naturalHeight;
+      const scale = rw / iw;
+      const step = Math.max(1, ih * scale);
+      let y = ry;
+      while (y < ry + rh) {
+        const piece = Math.min(step, ry + rh - y);
+        const srcH = piece / scale;
+        try {
+          ctx.drawImage(lineRec.img, 0, 0, iw, srcH, rx, y, rw, piece);
+        } catch (e) { /* ignore */ }
+        y += piece;
+      }
+    }
+    if (topH > 0 && topRec) {
+      try { ctx.drawImage(topRec.img, rx, ry, rw, topH); } catch (e) { /* ignore */ }
+    }
+    if (botH > 0 && botRec) {
+      try { ctx.drawImage(botRec.img, rx, ry + rh - botH, rw, botH); } catch (e) { /* ignore */ }
+    }
+    const lw = Number(gauntletLaserLineWidthPx) || 0;
+    if (lw > 0) {
+      ctx.strokeStyle = gauntletLaserStrokeColor;
+      ctx.lineWidth = lw;
+      ctx.strokeRect(rx + lw / 2, ry + lw / 2, rw - lw, rh - lw);
+    }
+    ctx.restore();
+  }
+
+  /** Stack preview: HUD แนว cyberdeck — SCORE ซ้าย, ตาปัจจุบันขวา, เทอร์มินัลล่างซ้าย */
+  function drawStackPreviewCyberHud(ctx, cw, ch) {
+    if (!playBotsEnabled() || !stackMini || !mapData || !isStack()) return;
+    const now = Date.now();
+    const pad = 12;
+    const currentSeat = getStackPreviewCurrentSeat();
+    const order = stackPreviewTurnOrder;
+    const mono = '11px ui-monospace, "Cascadia Mono", Consolas, monospace';
+    const monoSm = '9px ui-monospace, Consolas, monospace';
+    const lives = stackMini.lives != null ? stackMini.lives : 3;
+    const lifeSlots = 3;
+    const teamScore = stackMini.score || 0;
+    const combo = stackMini.combo || 0;
+
+    function roundRectPath(x, y, w, h, r) {
+      const rr = Math.min(r, w / 2, h / 2);
+      ctx.beginPath();
+      ctx.moveTo(x + rr, y);
+      ctx.arcTo(x + w, y, x + w, y + h, rr);
+      ctx.arcTo(x + w, y + h, x, y + h, rr);
+      ctx.arcTo(x, y + h, x, y, rr);
+      ctx.arcTo(x, y, x + w, y, rr);
+      ctx.closePath();
+    }
+
+    function drawHudAvatar(cx, baselineY, maxSize, characterId, playTint) {
+      const timeMs = now;
+      const dir = 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, false);
+      const charImg = playTint ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, false, playTint) : rawImg;
+      let iw = 0; let ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      const ax = cx - maxSize / 2;
+      const ay = baselineY - maxSize;
+      ctx.save();
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.clip();
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(maxSize / iw, maxSize / ih, 1);
+        const dw = iw * scale;
+        const dh = ih * scale;
+        ctx.drawImage(charImg, 0, 0, iw, ih, cx - dw / 2, baselineY - dh, dw, dh);
+      } else {
+        ctx.fillStyle = 'rgba(80, 200, 255, 0.35)';
+        ctx.fillRect(ax, ay, maxSize, maxSize);
+      }
+      ctx.restore();
+      ctx.strokeStyle = 'rgba(0, 234, 255, 0.5)';
+      ctx.lineWidth = 1.5;
+      roundRectPath(ax, ay, maxSize, maxSize, 5);
+      ctx.stroke();
+    }
+
+    function resolveEntryVisual(entry) {
+      if (entry.kind === 'human') {
+        return {
+          name: String(me.nickname || 'YOU').toUpperCase(),
+          score: me.stackPreviewHumanPts || 0,
+          characterId: me.characterId,
+          playTint: me.playTint || playTintFromPeerId(String(myId || 'me')),
+        };
+      }
+      const o = entry.botId ? others.get(entry.botId) : null;
+      return {
+        name: o ? String(o.nickname || 'BOT').replace(/\s+/g, ' ').toUpperCase().slice(0, 12) : '—',
+        score: o ? (o.stackBotScore || 0) : 0,
+        characterId: o ? o.characterId : null,
+        playTint: o ? (o.playTint || playTintFromPeerId(entry.botId)) : null,
+      };
+    }
+
+    ctx.save();
+    ctx.setTransform(1, 0, 0, 1, 0, 0);
+
+    const boardW = Math.min(248, Math.max(200, cw * 0.36));
+    const rowH = 42;
+    const headH = 38;
+    const boardH = headH + stackTurnCount * rowH + 10;
+
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(0, 230, 255, 0.5)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, 8, boardW, boardH, 8);
+    ctx.stroke();
+
+    ctx.fillStyle = '#5cefff';
+    ctx.font = 'bold 12px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('SCORE', pad + 14, 16);
+    ctx.fillStyle = 'rgba(94, 239, 255, 0.55)';
+    ctx.font = monoSm;
+    ctx.fillText('shared stack · P1–P6', pad + 62, 18);
+
+    let rowY = 8 + headH;
+    const drawRows = (entries) => {
+      entries.forEach((entry) => {
+        const isCurrent = entry.seat === currentSeat;
+        const v = resolveEntryVisual(entry);
+        let actionFlash = false;
+        if (entry.kind === 'human') {
+          actionFlash = lastStackPreviewActorId === '__human__' && now < lastStackPreviewActorUntil;
+        } else if (entry.botId) {
+          const ob = others.get(entry.botId);
+          actionFlash = !!(ob && ((now < (ob.stackBotGlowUntil || 0)) || (entry.botId === lastStackPreviewActorId && now < lastStackPreviewActorUntil)));
+        }
+        if (isCurrent) {
+          ctx.fillStyle = 'rgba(255, 0, 180, 0.1)';
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.fill();
+          ctx.strokeStyle = 'rgba(0, 255, 220, 0.9)';
+          ctx.lineWidth = 2;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        } else if (actionFlash) {
+          ctx.strokeStyle = 'rgba(255, 214, 102, 0.65)';
+          ctx.lineWidth = 1.5;
+          roundRectPath(pad + 6, rowY - 1, boardW - 12, rowH - 2, 4);
+          ctx.stroke();
+        }
+        const avS = 34;
+        drawHudAvatar(pad + 10 + avS / 2, rowY + avS - 3, avS, v.characterId, v.playTint);
+        ctx.fillStyle = isCurrent ? '#e0f7ff' : '#89b4fa';
+        ctx.font = '600 10px ui-sans-serif, system-ui, sans-serif';
+        ctx.textBaseline = 'middle';
+        ctx.fillText('P' + entry.seat, pad + 14 + avS + 6, rowY + 12);
+        ctx.fillStyle = '#c0caf5';
+        ctx.font = 'bold 10px ' + mono;
+        ctx.fillText(v.name.slice(0, 11), pad + 14 + avS + 6, rowY + 28);
+        ctx.fillStyle = actionFlash ? '#ffe066' : '#7dfcff';
+        ctx.font = 'bold 13px ' + mono;
+        ctx.textAlign = 'right';
+        ctx.fillText(String(v.score), pad + boardW - 12, rowY + rowH / 2);
+        ctx.textAlign = 'left';
+        rowY += rowH;
+      });
+    };
+
+    if (order && order.length === stackTurnCount) {
+      drawRows(order);
+    } else {
+      const bots = [...others.keys()].filter(isPreviewBotId).sort();
+      const rows = [{ kind: 'human', seat: 1 }];
+      for (let i = 0; i < stackTurnCount - 1; i++) {
+        rows.push({ kind: 'bot', seat: i + 2, botId: bots[i] || null });
+      }
+      drawRows(rows);
+    }
+
+    const rightW = 136;
+    let rightX = cw - pad - rightW;
+    const topY = 8;
+    if (rightX < pad + boardW + 14) {
+      rightX = Math.max(pad, cw - pad - rightW);
+    }
+    const bigAv = Math.min(78, Math.max(56, ch * 0.11));
+    const turnPanelH = bigAv + 118;
+    ctx.fillStyle = 'rgba(8, 12, 28, 0.9)';
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 154, 247, 0.55)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(rightX, topY, rightW, turnPanelH, 8);
+    ctx.stroke();
+
+    let curEntry = null;
+    if (order && order.length === stackTurnCount) {
+      curEntry = order.find((e) => e.seat === currentSeat) || null;
+    }
+    const curV = curEntry ? resolveEntryVisual(curEntry) : resolveEntryVisual({ kind: 'human', seat: 1 });
+    const framePad = 8;
+    const avCx = rightX + rightW / 2;
+    const bigFrameTop = topY + framePad - 2;
+    const bigFrameH = bigAv + 8;
+    ctx.strokeStyle = 'rgba(255, 120, 200, 0.75)';
+    ctx.lineWidth = 2;
+    roundRectPath(rightX + framePad - 2, topY + framePad - 2, rightW - (framePad - 2) * 2, bigAv + 8, 6);
+    ctx.stroke();
+    drawHudAvatar(avCx, bigFrameTop + bigFrameH - 4, bigAv, curV.characterId, curV.playTint);
+
+    ctx.fillStyle = '#f5c2e7';
+    ctx.font = 'bold 10px ui-sans-serif, system-ui, sans-serif';
+    ctx.textAlign = 'center';
+    ctx.textBaseline = 'top';
+    ctx.fillText('ACTIVE NODE', rightX + rightW / 2, topY + bigAv + 22);
+    ctx.fillStyle = '#7dfcff';
+    ctx.font = 'bold 11px ' + mono;
+    ctx.fillText('P' + currentSeat + ' · ' + curV.name.slice(0, 10), rightX + rightW / 2, topY + bigAv + 38);
+
+    ctx.fillStyle = '#bb9af7';
+    ctx.font = '600 9px ui-sans-serif, system-ui, sans-serif';
+    ctx.fillText('SYSTEM INTEGRITY', rightX + rightW / 2, topY + bigAv + 58);
+    ctx.font = '14px sans-serif';
+    let heartStr = '';
+    for (let i = 0; i < lifeSlots; i++) {
+      heartStr += i < lives ? '♥ ' : '♡ ';
+    }
+    ctx.fillStyle = lives <= 1 ? '#f7768e' : '#9ece6a';
+    ctx.fillText(heartStr.trim(), rightX + rightW / 2, topY + bigAv + 74);
+
+    ctx.fillStyle = 'rgba(125, 252, 255, 0.85)';
+    ctx.font = monoSm;
+    ctx.fillText('TEAM ' + teamScore + ' · COMBO x' + combo, rightX + rightW / 2, topY + bigAv + 96);
+
+    const termW = Math.min(380, Math.max(220, cw * 0.42));
+    const termH = 86;
+    const termY = Math.max(boardH + 24, ch - termH - 52);
+    ctx.fillStyle = 'rgba(18, 8, 32, 0.88)';
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.fill();
+    ctx.strokeStyle = 'rgba(187, 100, 255, 0.45)';
+    ctx.lineWidth = 1.5;
+    roundRectPath(pad, termY, termW, termH, 6);
+    ctx.stroke();
+
+    ctx.fillStyle = '#c099ff';
+    ctx.font = '600 10px ' + mono;
+    ctx.textAlign = 'left';
+    ctx.textBaseline = 'top';
+    ctx.fillText('// NODE_LOG', pad + 10, termY + 8);
+    ctx.fillStyle = '#7dcfff';
+    ctx.font = monoSm;
+    let ly = termY + 26;
+    const logLines = stackPreviewHudLog.length
+      ? stackPreviewHudLog.slice(-5)
+      : ['>>> Awaiting stack sync…', '>>> Space / click = release (your turn only)'];
+    logLines.forEach((ln) => {
+      ctx.fillText(ln, pad + 10, ly);
+      ly += 12;
+    });
+
+    const decryptPct = Math.min(100, Math.floor((stackMini.layers.length || 0) * 11 + Math.min(40, teamScore * 3)));
+    const barY = termY + termH - 18;
+    const barW = termW - 20;
+    ctx.fillStyle = 'rgba(0,0,0,0.35)';
+    ctx.fillRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = 'rgba(0, 255, 200, 0.65)';
+    ctx.fillRect(pad + 10, barY, Math.max(4, barW * decryptPct / 100), 8);
+    ctx.strokeStyle = 'rgba(0, 234, 255, 0.4)';
+    ctx.strokeRect(pad + 10, barY, barW, 8);
+    ctx.fillStyle = '#94e2d5';
+    ctx.font = monoSm;
+    ctx.fillText('TOWER_LINK ' + decryptPct + '%', pad + 10, barY - 14);
+
+    ctx.restore();
+  }
+
+  function useCyberPlayHud() {
+    return !!(mapData && (isJumpSurvive() || isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry()));
+  }
+
+  /** Cyber HUD: quiz_carry ใช้ playLiveQuizScores (ถูก +QUIZ_CARRY_POINTS_PER_CORRECT ตอนส่งป้ายถูกที่ฮับ) */
+  function cyberHudQuizCarryPeerScore(peerId) {
+    if (peerId == null) return 0;
+    return Math.max(0, Number(playLiveQuizScores[peerId]) || 0);
+  }
+
+  function syncPlayCyberHud() {
+    const root = document.getElementById('play-cyber-hud');
+    const stackEl = document.getElementById('play-canvas-stack');
+    const on = useCyberPlayHud();
+    if (root) {
+      root.classList.toggle('is-hidden', !on);
+      root.setAttribute('aria-hidden', on ? 'false' : 'true');
+    }
+    if (stackEl) stackEl.classList.toggle('play-cyber-vignette', !!on);
+    const gw = document.querySelector('.game-wrap');
+    if (gw) gw.classList.toggle('play-cyber-active', !!on);
+    if (!on || !root) return;
+    const timeLabelEl = root.querySelector('.play-cyber-time-label');
+    if (timeLabelEl) timeLabelEl.style.display = isQuizCarry() ? 'none' : '';
+    const timeVal = document.getElementById('play-cyber-time-val');
+    const timeSub = document.getElementById('play-cyber-time-sub');
+    const portrait = document.getElementById('play-cyber-portrait-img');
+    const statusEl = document.getElementById('play-cyber-self-status');
+    const hintEl = document.getElementById('play-cyber-hint');
+    const previewEl = document.getElementById('play-cyber-preview-line');
+
+    if (timeSub) {
+      timeSub.textContent = isQuizCarry()
+        ? 'QUIZ CARRY · COURT — หยิบป้ายถูกแล้วส่งที่ฮับ (F / Grab)'
+        : (isGauntlet() ? 'GAUNTLET · SURVIVAL RUN'
+          : (isSpaceShooter() ? 'SPACE SHOOTER · ARCADE'
+            : (isBalloonBoss() ? 'BALLOON BOSS · MEGA VIRUS'
+              : (isJumpSurviveMissionUiMapPlay() ? 'JUMPER · SURVIVE — เหลือเวลา (วินาที) · TIME (sec)' : 'JUMP SURVIVE · NODE UPLINK'))));
+    }
+    if (timeVal) {
+      if (isQuizCarry()) {
+        if (quizCarrySessionEnded) {
+          timeVal.textContent = '0';
+        } else if (previewMode && editorEmbedReturn && quizCarryEmbedCountdownEndAt > Date.now()) {
+          const rem = Math.max(0, Math.ceil((quizCarryEmbedCountdownEndAt - Date.now()) / 1000));
+          timeVal.textContent = String(rem);
+        } else if (quizCarryPregameActive) {
+          timeVal.textContent = '···';
+        } else if (!quizCarryCurrent) {
+          timeVal.textContent = '—';
+        } else if (quizCarryOptionRevealAt > 0 && Date.now() < quizCarryOptionRevealAt) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryOptionRevealAt - Date.now()) / 1000)));
+        } else if (quizCarryAnswerCloseAt > Date.now()) {
+          timeVal.textContent = String(Math.max(0, Math.ceil((quizCarryAnswerCloseAt - Date.now()) / 1000)));
+        } else {
+          timeVal.textContent = '0';
+        }
+      } else if (isGauntlet()) {
+        if (isGauntletCrownHeistMapPlay() && isGauntletCrownPregameBlockingPlay()) {
+          timeVal.textContent = '···';
+        } else if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+          const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+          const mm = Math.floor(rem / 60);
+          const ss = rem % 60;
+          timeVal.textContent = `${mm}:${String(ss).padStart(2, '0')}`;
+        } else if (gauntletRuntimeTimeLimitSec > 0) {
+          timeVal.textContent = '···';
+        } else {
+          timeVal.textContent = '∞';
+        }
+      } else if (isSpaceShooter()) {
+        if (spaceShooterGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = spaceShooterRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isBalloonBoss()) {
+        if (balloonBossGameEnded) {
+          timeVal.textContent = '0';
+        } else {
+          const rem = balloonBossRemainingSecPlay();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'live' || jumpSurviveGameEnded) {
+          timeVal.textContent = jumpSurviveMissionPhase === 'howto' ? '···' : (jumpSurviveMissionPhase === 'countdown' ? '···' : '0');
+        } else {
+          const rem = jumpSurviveRemainingSecMission();
+          timeVal.textContent = rem != null ? String(rem) : '∞';
+        }
+      } else {
+        const t = jumpSurviveSessionStartMs > 0
+          ? Math.max(0, Math.floor((performance.now() - jumpSurviveSessionStartMs) / 1000))
+          : 0;
+        timeVal.textContent = String(t);
+      }
+    }
+
+    if (portrait) {
+      const cid = me.characterId || getPlayCharacterId();
+      const dir = (isGauntletFaceRightMapMno9kb07() ? 'right' : (me.direction || 'down'));
+      const nowT = Date.now();
+      const walk = !!me.isWalking;
+      const rawImg = getAvatarImg(cid, dir, nowT, walk);
+      const tint = me.playTint || playTintFromPeerId(String(myId != null ? myId : 'me'));
+      const comp = rawImg && cid && tint
+        ? getPlayTintedAvatarSource(rawImg, cid, dir, nowT, walk, tint)
+        : rawImg;
+      if (comp && comp.tagName === 'CANVAS' && comp.width > 0) {
+        try {
+          portrait.src = comp.toDataURL('image/png');
+        } catch (e) {
+          if (rawImg && rawImg.src) portrait.src = rawImg.src;
+        }
+      } else if (comp && comp.src) {
+        portrait.src = comp.src;
+      } else if (rawImg && rawImg.src) {
+        portrait.src = rawImg.src;
+      }
+    }
+    if (statusEl) {
+      if (isQuizCarry() && quizCarrySessionEnded) {
+        statusEl.textContent = 'SESSION COMPLETE · จบชุดคำถาม';
+      } else if (isJumpSurvive() && jumpSurviveEliminated) {
+        statusEl.textContent = 'SPECTATOR · LINK SEVERED';
+      } else if (isBalloonBoss() && me.balloonBossEliminated) {
+        statusEl.textContent = 'SPECTATOR · BALLOONS GONE';
+      } else {
+        statusEl.textContent = 'OPERATOR ONLINE';
+      }
+    }
+    if (hintEl) {
+      if (isQuizCarry()) {
+        hintEl.textContent = quizCarrySessionEnded
+          ? 'ชุดคำถามจบแล้ว · Session ended — ดูคะแนนด้าน SCORE'
+          : ('ยืนโซนตัวเลือกแล้วกด F/Grab หยิบ · ถือป้ายถูกแล้วไปฮับส่ง — ถูก +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' แต้ม (correct +' + QUIZ_CARRY_POINTS_PER_CORRECT + ' on hub)');
+      } else if (isJumpSurvive()) {
+        if (isJumpSurviveMissionUiMapPlay()) {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'คุณตกน้ำแล้ว — ดูเพื่อนต่อ — รอจบเพื่อรับคะแนน (ผู้รอดได้ 100 คะแนน)'
+            : 'กระโดดตามแท่น — หลีกหนาม/กับดักด้านล่าง · หมดเวลาแล้วสรุปคะแนน (ผู้รอด 100) · Space / W / ↑ กระโดด · A D / ← → เดิน';
+        } else {
+          hintEl.textContent = jumpSurviveEliminated
+            ? 'Spectate remaining nodes · Exit room to reset session'
+            : 'Space / W / ↑ jump · A D / arrows move · Hit ceiling/floor = out (watch others)';
+        }
+      } else if (isSpaceShooter()) {
+        hintEl.textContent = spaceShooterGameEnded
+          ? 'จบแล้ว · Session ended — ดูอันดับบน overlay / see rankings on overlay'
+          : 'A D / ← → = move · W S / ↑ ↓ = up/down (lower half of map only) · Space = fire · +5 per hit';
+      } else if (isBalloonBoss()) {
+        hintEl.textContent = balloonBossGameEnded
+          ? 'จบแล้ว · Session ended — see overlay'
+            : (me.balloonBossEliminated
+            ? 'คุณตกรอบแล้ว — ดูเพื่อนเล่น · You are out — spectate'
+            : 'ยานมีแรงเฉื่อย — A D / arrows / W S เร่งทิศทาง · ปล่อยปุ่มแล้วยังไหล (แรงหน่วง) · Space = ยิง (ดีเลย์) · ลูกโป้งหมด = ตกรอบ');
+      } else if (isGauntletCrownHeistMapPlay()) {
+        hintEl.textContent = 'Space / W / ↑ jump · Start 100 pts · Hit -10 · Fall off left edge = out · Rank bonus at end';
+      } else {
+        hintEl.textContent = 'Space / W / ↑ jump · Lanes + lasers · Clear = right + score';
+      }
+    }
+    if (previewEl) {
+      if (previewFillBots && mapData) {
+        const human = countPlayHumans();
+        const bots = [...others.keys()].filter(isPreviewBotId).length;
+        previewEl.textContent = `SIM · humans ${human} + bots ${bots} · target ${previewTargetHeadcount}`;
+        previewEl.classList.remove('is-hidden');
+      } else {
+        previewEl.textContent = '';
+        previewEl.classList.add('is-hidden');
+      }
+    }
+
+    const ul = document.getElementById('play-cyber-score-list');
+    if (!ul) return;
+    const safeYv = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const jumpMissionHud = isJumpSurvive() && isJumpSurviveMissionUiMapPlay();
+    const rows = [];
+    rows.push({
+      id: myId,
+      nickname: me.nickname || nick,
+      characterId: me.characterId || getPlayCharacterId(),
+      score: isQuizCarry() ? cyberHudQuizCarryPeerScore(myId)
+        : (isGauntlet() ? (me.gauntletScore || 0)
+          : (isSpaceShooter() ? (me.spaceShooterScore || 0)
+            : (isBalloonBoss() ? (me.balloonBossScore || 0)
+              : (jumpMissionHud ? (jumpSurviveEliminated ? 0 : 100) : 0)))),
+      y: safeYv(me.y),
+      eliminated: !!(isJumpSurvive() && jumpSurviveEliminated) || !!(isBalloonBoss() && me.balloonBossEliminated)
+        || !!(isGauntletCrownHeistMapPlay() && me.gauntletEliminated),
+      isMe: true,
+    });
+    others.forEach((o, id) => {
+      rows.push({
+        id,
+        nickname: o.nickname || id.slice(0, 8),
+        characterId: o.characterId,
+        score: isQuizCarry() ? cyberHudQuizCarryPeerScore(id)
+          : (isGauntlet() ? (o.gauntletScore || 0)
+            : (isSpaceShooter() ? (o.spaceShooterScore || 0)
+              : (isBalloonBoss() ? (o.balloonBossScore || 0)
+                : (jumpMissionHud ? (o.jumpSurviveEliminated ? 0 : 100) : 0)))),
+        y: safeYv(o.y),
+        eliminated: !!(isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated)
+          || !!(isBalloonBoss() && o.balloonBossEliminated)
+          || !!(isGauntletCrownHeistMapPlay() && o.gauntletEliminated),
+        isMe: false,
+      });
+    });
+    let leaderId = null;
+    if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+      let mx = -1;
+      for (let i = 0; i < rows.length; i++) {
+        if (rows[i].score > mx) {
+          mx = rows[i].score;
+          leaderId = rows[i].id;
+        }
+      }
+    } else {
+      let best = Infinity;
+      for (let i = 0; i < rows.length; i++) {
+        if (!rows[i].eliminated && rows[i].y < best) {
+          best = rows[i].y;
+          leaderId = rows[i].id;
+        }
+      }
+    }
+    rows.sort((a, b) => {
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        if (b.score !== a.score) return b.score - a.score;
+        if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+        return String(a.nickname || '').localeCompare(String(b.nickname || ''), 'th');
+      }
+      if (a.eliminated !== b.eliminated) return a.eliminated ? 1 : -1;
+      return a.y - b.y;
+    });
+
+    ul.innerHTML = '';
+    const cap = 8;
+    for (let r = 0; r < Math.min(cap, rows.length); r++) {
+      const row = rows[r];
+      const li = document.createElement('li');
+      li.className = 'play-cyber-score-row' + (row.isMe ? ' is-me' : '') + (row.eliminated ? ' is-out' : '');
+      const av = document.createElement('img');
+      av.className = 'play-cyber-score-av';
+      av.alt = '';
+      const cid = row.characterId ? String(row.characterId) : '';
+      if (!cid) {
+        av.src = defaultAvatarImg.src;
+      } else {
+        const im = getCharacterImg(cid, 'down');
+        if (im && im.src) av.src = im.src;
+      }
+      const mid = document.createElement('div');
+      mid.className = 'play-cyber-score-mid';
+      const name = document.createElement('span');
+      name.className = 'play-cyber-score-name';
+      if (row.id === leaderId && leaderId != null) {
+        const crown = document.createElement('span');
+        crown.className = 'play-cyber-lead-crown';
+        crown.textContent = '♔';
+        crown.title = 'Leader';
+        name.appendChild(crown);
+      }
+      name.appendChild(document.createTextNode(String(row.nickname || '').slice(0, 14)));
+      const st = document.createElement('span');
+      st.className = 'play-cyber-score-state';
+      st.textContent = isQuizCarry()
+        ? ''
+        : (row.eliminated
+          ? (isBalloonBoss() ? 'OUT' : (isGauntletCrownHeistMapPlay() ? 'เสียชีวิต' : 'OFFLINE'))
+          : (isBalloonBoss()
+            ? ('♥' + Math.max(0, row.isMe ? (me.balloonBossBalloons | 0) : ((() => {
+              const ox = others.get(row.id);
+              return ox ? (ox.balloonBossBalloons | 0) : 0;
+            })())))
+            : 'LINK_OK'));
+      mid.appendChild(name);
+      mid.appendChild(st);
+      const sc = document.createElement('span');
+      sc.className = 'play-cyber-score-val';
+      if (isGauntlet() || isSpaceShooter() || isBalloonBoss() || isQuizCarry() || jumpMissionHud) {
+        sc.textContent = String(row.score);
+      } else {
+        sc.textContent = row.eliminated ? '—' : String(r + 1);
+      }
+      li.appendChild(av);
+      li.appendChild(mid);
+      li.appendChild(sc);
+      ul.appendChild(li);
+    }
+  }
+
+  function draw() {
+    if (!mapData) return;
+    const w = mapData.width, h = mapData.height;
+
+    const stackCam = isStack() ? getStackCameraCentersPx() : null;
+    let camX = stackCam ? stackCam.px : me.x * tileSize;
+    let camY = stackCam ? stackCam.py : me.y * tileSize;
+    if (isJumpSurvive()) {
+      camX = jumpSurviveCamCenterX;
+      camY = jumpSurviveCamCenterY;
+    }
+    let zDraw = zoom;
+    if (isSpaceShooter() || isBalloonBoss()) {
+      const mwPx = w * tileSize, mhPx = h * tileSize;
+      camX = mwPx * 0.5;
+      camY = mhPx * 0.5;
+      zDraw = Math.min(canvas.width / mwPx, canvas.height / mhPx) * 0.96;
+    }
+    const halfW = canvas.width / (2 * zDraw);
+    const halfH = canvas.height / (2 * zDraw);
+
+    // world bounds ที่กล้องมองเห็น (เป็นพิกัดพิกเซลของ map)
+    const worldMinX = camX - halfW;
+    const worldMaxX = camX + halfW;
+    const worldMinY = camY - halfH;
+    const worldMaxY = camY + halfH;
+
+    const mapWpx = w * tileSize, mapHpx = h * tileSize;
+    const visibleW = worldMaxX - worldMinX, visibleH = worldMaxY - worldMinY;
+    const showGrid = mapData.showMapInGame !== false && mapData.showMapInGame !== 'false';
+    const timeMs = Date.now();
+
+    if (mapBackgroundImg && mapBackgroundImg.complete && mapBackgroundImg.naturalWidth) {
+      /* กล้องเห็นพื้นที่นอก [0,map] ได้ — ห้ามสุ่มต้นทาง drawImage เกินขอบภาพ (จะเกิดซ้ำ/เส้นตัด/ซ้อนกันที่ขอบจอ) */
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      const natW = mapBackgroundImg.naturalWidth;
+      const natH = mapBackgroundImg.naturalHeight;
+      const bgMinX = Math.max(0, worldMinX);
+      const bgMaxX = Math.min(mapWpx, worldMaxX);
+      const bgMinY = Math.max(0, worldMinY);
+      const bgMaxY = Math.min(mapHpx, worldMaxY);
+      if (bgMaxX > bgMinX && bgMaxY > bgMinY) {
+        const srcX = (bgMinX / mapWpx) * natW;
+        const srcY = (bgMinY / mapHpx) * natH;
+        const srcW = ((bgMaxX - bgMinX) / mapWpx) * natW;
+        const srcH = ((bgMaxY - bgMinY) / mapHpx) * natH;
+        const destX = (bgMinX - camX) * zDraw + canvas.width / 2;
+        const destY = (bgMinY - camY) * zDraw + canvas.height / 2;
+        const destW = (bgMaxX - bgMinX) * zDraw;
+        const destH = (bgMaxY - bgMinY) * zDraw;
+        if (srcW > 0.25 && srcH > 0.25 && destW > 0.25 && destH > 0.25) {
+          ctx.drawImage(mapBackgroundImg, srcX, srcY, srcW, srcH, destX, destY, destW, destH);
+        }
+      }
+    } else {
+      ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+      if (isSpaceShooter()) {
+        ctx.save();
+        for (let s = 0; s < 120; s++) {
+          const sx = (Math.sin(s * 12.9898 + w) * 0.5 + 0.5) * canvas.width;
+          const sy = (Math.cos(s * 4.1415 + h) * 0.5 + 0.5) * canvas.height;
+          const br = (s % 4 === 0) ? 1.6 : 0.9;
+          ctx.fillStyle = s % 7 === 0 ? 'rgba(200, 240, 255, 0.35)' : 'rgba(255, 255, 255, 0.12)';
+          ctx.beginPath();
+          ctx.arc(sx, sy, br, 0, Math.PI * 2);
+          ctx.fill();
+        }
+        ctx.restore();
+      } else if (isBalloonBoss()) {
+        ctx.save();
+        ctx.fillStyle = 'rgba(30, 45, 120, 0.25)';
+        for (let col = 0; col < 24; col++) {
+          const x = (col + 0.5) * (canvas.width / 24);
+          for (let r = 0; r < 18; r++) {
+            const bit = (col * 17 + r * 31 + Math.floor(timeMs / 80)) % 2;
+            ctx.fillStyle = bit ? 'rgba(0, 255, 200, 0.14)' : 'rgba(180, 200, 255, 0.08)';
+            ctx.fillRect(x - 1, (r / 18) * canvas.height + ((timeMs / 40 + col * 3) % 40), 2.2, 10);
+          }
+        }
+        ctx.fillStyle = 'rgba(240, 248, 255, 0.55)';
+        ctx.beginPath();
+        ctx.moveTo(0, canvas.height);
+        const baseY = canvas.height * 0.88;
+        for (let k = 0; k <= 40; k++) {
+          const bx = (k / 40) * canvas.width;
+          const by = baseY - Math.abs(Math.sin(k * 1.7 + w)) * canvas.height * 0.08 - (k % 3) * 4;
+          ctx.lineTo(bx, by);
+        }
+        ctx.lineTo(canvas.width, canvas.height);
+        ctx.closePath();
+        ctx.fill();
+        ctx.restore();
+      }
+    }
+    function worldToScreen(wx, wy) {
+      const sx = (wx - camX) * zDraw + canvas.width / 2;
+      const sy = (wy - camY) * zDraw + canvas.height / 2;
+      return [sx, sy];
+    }
+
+    function drawGridImagePlacementsLayer() {
+      if (!mapData.gridImagePlacements || !mapData.gridImagePlacements.length || !mapData.gridImageLibrary || !mapData.gridImageLibrary.length) return;
+      for (let gi = 0; gi < mapData.gridImagePlacements.length; gi++) {
+        const sp = mapData.gridImagePlacements[gi];
+        const wx0 = sp.x * tileSize;
+        const wy0 = sp.y * tileSize;
+        const ww = sp.w * tileSize;
+        const wh = sp.h * tileSize;
+        if (wx0 + ww <= worldMinX || wx0 >= worldMaxX || wy0 + wh <= worldMinY || wy0 >= worldMaxY) continue;
+        let gim = mapGridImageImgs[sp.i];
+        let carrySpriteAlpha = 1;
+        if (isQuizCarry()) {
+          const domOpt = quizCarryOptionIndexForGridSprite(mapData, sp);
+          const onHub = spriteOverlapsQuizCarryHubArea(mapData, sp);
+          const meHolding = me && me.quizCarryHeld != null;
+          let carryVisualActive = false;
+          if (domOpt != null && quizCarryOptionHeldByAnyone(domOpt)) carryVisualActive = true;
+          else if (domOpt == null && onHub && meHolding) carryVisualActive = true;
+          if (carryVisualActive) {
+            const gh = mapGridImageHeldImgs[sp.i];
+            if (gh && gh.complete && gh.naturalWidth) gim = gh;
+            else carrySpriteAlpha = 0.32;
+          }
+        }
+        if (!gim || !gim.complete || !gim.naturalWidth) continue;
+        const sx0 = (wx0 - camX) * zDraw + canvas.width / 2;
+        const sy0 = (wy0 - camY) * zDraw + canvas.height / 2;
+        const sw = ww * zDraw;
+        const sh = wh * zDraw;
+        ctx.save();
+        if (carrySpriteAlpha < 1) ctx.globalAlpha = carrySpriteAlpha;
+        ctx.beginPath();
+        ctx.rect(sx0, sy0, sw, sh);
+        ctx.clip();
+        ctx.drawImage(gim, sx0, sy0, sw, sh);
+        ctx.restore();
+        ctx.strokeStyle = 'rgba(255,255,255,0.18)';
+        ctx.lineWidth = 1;
+        ctx.strokeRect(sx0 + 0.5, sy0 + 0.5, sw - 1, sh - 1);
+      }
+    }
+
+    const startTileX = Math.max(0, Math.floor(worldMinX / tileSize));
+    const endTileX = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+    const startTileY = Math.max(0, Math.floor(worldMinY / tileSize));
+    const endTileY = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        const lane = isFrogger() ? getLane(y) : null;
+        let rowFill = null;
+        if (lane) {
+          if (lane.type === 'goal') rowFill = 'rgba(158,206,106,0.4)';
+          else if (lane.type === 'spawn') rowFill = 'rgba(187,154,247,0.35)';
+          else if (lane.type === 'road') rowFill = 'rgba(80,70,60,0.6)';
+          else if (lane.type === 'water') rowFill = 'rgba(125,207,255,0.5)';
+        } else if (isGauntlet()) {
+          rowFill = (y % 2 === 0) ? 'rgba(247,118,190,0.08)' : 'rgba(180,90,140,0.06)';
+        } else if (isStack()) {
+          rowFill = (y % 2 === 0) ? 'rgba(122, 162, 247, 0.06)' : 'rgba(187, 154, 247, 0.05)';
+        } else if (isJumpSurvive()) {
+          rowFill = (y % 2 === 0) ? 'rgba(90, 200, 255, 0.07)' : 'rgba(60, 140, 200, 0.06)';
+        } else if (isSpaceShooter()) {
+          rowFill = (y % 2 === 0) ? 'rgba(30, 45, 110, 0.22)' : 'rgba(20, 32, 78, 0.28)';
+        } else if (isBalloonBoss()) {
+          rowFill = (y % 2 === 0) ? 'rgba(40, 25, 80, 0.2)' : 'rgba(25, 18, 60, 0.24)';
+        } else if (isQuizBattle()) {
+          rowFill = (y % 2 === 0) ? 'rgba(110, 175, 255, 0.06)' : 'rgba(230, 110, 140, 0.055)';
+        }
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const ob = mapData.objects?.[y]?.[x] ?? 0;
+          if (ob === 1) {
+            ctx.fillStyle = 'rgba(65,72,104,0.92)';
+            ctx.fillRect(sx, sy, size, size);
+            ctx.strokeStyle = '#565f89';
+            ctx.strokeRect(sx, sy, size, size);
+          } else {
+            const cellColor = showGrid && mapData.cellColors && mapData.cellColors[y] && mapData.cellColors[y][x];
+            if (cellColor) { ctx.fillStyle = cellColor; ctx.fillRect(sx, sy, size, size); }
+            else if (rowFill) { ctx.fillStyle = rowFill; ctx.fillRect(sx, sy, size, size); }
+            else if (!mapBackgroundImg || !mapBackgroundImg.complete) {
+              ctx.fillStyle = (x + y) % 2 === 0 ? '#24283b' : '#1f2335';
+              ctx.fillRect(sx, sy, size, size);
+            }
+          }
+        }
+      }
+    }
+    drawGridImagePlacementsLayer();
+    if (showGrid) {
+      for (let y = startTileY; y <= endTileY; y++) {
+        for (let x = startTileX; x <= endTileX; x++) {
+          const wx = x * tileSize, wy = y * tileSize;
+          const [sx, sy] = worldToScreen(wx, wy);
+          const size = tileSize * zDraw;
+          const isInter = mapData.interactive && mapData.interactive[y] && mapData.interactive[y][x] === 1;
+          if (isInter) {
+            ctx.fillStyle = 'rgba(158,206,106,0.35)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = 'rgba(158,206,106,0.8)';
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+          }
+          if (isQuiz()) {
+            const isQuizQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isQuizQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.32)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.78)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizT = mapData.quizTrueArea && mapData.quizTrueArea[y] && mapData.quizTrueArea[y][x] === 1;
+            if (isQuizT) {
+              ctx.fillStyle = 'rgba(86, 202, 255, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isQuizF = mapData.quizFalseArea && mapData.quizFalseArea[y] && mapData.quizFalseArea[y][x] === 1;
+            if (isQuizF) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.38)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.85)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+          }
+          if (isQuizCarry()) {
+            const hub = mapData.quizCarryHubArea && mapData.quizCarryHubArea[y] && mapData.quizCarryHubArea[y][x] === 1;
+            if (hub) {
+              ctx.fillStyle = 'rgba(187, 154, 247, 0.35)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(200, 170, 255, 0.75)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const isCarryQ = mapData.quizQuestionArea && mapData.quizQuestionArea[y] && mapData.quizQuestionArea[y][x] === 1;
+            if (isCarryQ) {
+              ctx.fillStyle = 'rgba(255, 214, 102, 0.3)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(224, 185, 70, 0.82)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            const ov = mapData.quizCarryOptionArea && mapData.quizCarryOptionArea[y] && mapData.quizCarryOptionArea[y][x];
+            if (ov >= 1 && ov <= QUIZ_CARRY_MAX_OPTION_SLOTS) {
+              ctx.fillStyle = quizCarryMinimapOptionFillCss(ov);
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattlePathArea && mapData.quizBattlePathArea[y] && mapData.quizBattlePathArea[y][x] === 1) {
+            ctx.fillStyle = 'rgba(186, 130, 255, 0.4)';
+            ctx.fillRect(sx + 1, sy + 1, size - 2, size - 2);
+            ctx.strokeStyle = 'rgba(220, 170, 255, 0.55)';
+            ctx.strokeRect(sx + 1, sy + 1, size - 2, size - 2);
+          }
+          if (isQuizBattle() && showGrid && mapData.quizBattleDomeArea && mapData.quizBattleDomeArea[y] && mapData.quizBattleDomeArea[y][x] === 1) {
+            const cid = mapData.quizBattleDomeComp && mapData.quizBattleDomeComp[y] && mapData.quizBattleDomeComp[y][x];
+            const done = cid > 0 && quizBattleAnsweredComps.has(cid);
+            ctx.fillStyle = done ? 'rgba(90, 90, 110, 0.4)' : 'rgba(100, 200, 255, 0.36)';
+            ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.strokeStyle = done ? 'rgba(140, 140, 160, 0.65)' : 'rgba(255, 100, 130, 0.82)';
+            ctx.lineWidth = 2;
+            ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            ctx.lineWidth = 1;
+          }
+          if (isStack()) {
+            const sr = mapData.stackReleaseArea, sl = mapData.stackLandArea;
+            if (sr && sr[y] && sr[y][x] === 1) {
+              ctx.fillStyle = 'rgba(125, 207, 255, 0.28)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(122, 220, 255, 0.55)';
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+            }
+            if (sl && sl[y] && sl[y][x] === 1) {
+              ctx.fillStyle = 'rgba(247, 118, 190, 0.26)';
+              ctx.fillRect(sx + 3, sy + 3, size - 6, size - 6);
+              ctx.strokeStyle = 'rgba(255, 130, 200, 0.5)';
+              ctx.strokeRect(sx + 3, sy + 3, size - 6, size - 6);
+            }
+          }
+          if (isBalloonBoss() && showGrid && mapData.balloonBossPlayerSlots) {
+            const sv = mapData.balloonBossPlayerSlots[y] && mapData.balloonBossPlayerSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(255, 120, 200, 0.12)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(255, 160, 220, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(255, 228, 250, 0.92)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+          if (isSpaceShooter() && showGrid && mapData.shooterSpawnSlots) {
+            const sv = mapData.shooterSpawnSlots[y] && mapData.shooterSpawnSlots[y][x];
+            if (sv >= 1 && sv <= 6) {
+              ctx.fillStyle = 'rgba(0, 255, 240, 0.14)';
+              ctx.fillRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.45)';
+              ctx.lineWidth = 1.5;
+              ctx.strokeRect(sx + 2, sy + 2, size - 4, size - 4);
+              ctx.lineWidth = 1;
+              ctx.fillStyle = 'rgba(220, 250, 255, 0.9)';
+              ctx.font = `bold ${Math.max(8, 10 * zDraw)}px sans-serif`;
+              ctx.textAlign = 'center';
+              ctx.fillText('P' + sv, sx + size / 2, sy + size / 2 + 4);
+              ctx.textAlign = 'left';
+            }
+          }
+        }
+      }
+      if (isJumpSurvive() && showGrid && mapData.jumpSurvivePlatformArea) {
+        const pa = mapData.jumpSurvivePlatformArea;
+        const sc = jumpSurvivePlatformScrollPx;
+        const tsz = tileSize;
+        const period = h * tsz;
+        const visTop = worldMinY;
+        const visBot = worldMaxY;
+        const eps = 1e-6;
+        for (let py = 0; py < h; py++) {
+          for (let px = 0; px < w; px++) {
+            if (!pa[py] || pa[py][px] !== 1) continue;
+            const tileWorldLeft = px * tsz;
+            const tileWorldRight = tileWorldLeft + tsz;
+            if (tileWorldRight <= worldMinX || tileWorldLeft >= worldMaxX) continue;
+            const rawTop = py * tsz - sc;
+            const kMin = Math.ceil((visTop - rawTop - tsz + eps) / period);
+            const kMax = Math.floor((visBot - rawTop - eps) / period);
+            if (kMax < kMin) continue;
+            for (let kk = kMin; kk <= kMax; kk++) {
+              const platTop = rawTop + kk * period;
+              if (platTop + tsz <= visTop || platTop >= visBot) continue;
+              const [psx, psy] = worldToScreen(tileWorldLeft, platTop);
+              const psz = tsz * zDraw;
+              ctx.fillStyle = 'rgba(0, 40, 52, 0.72)';
+              ctx.fillRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(0, 255, 240, 0.55)';
+              ctx.lineWidth = 2;
+              ctx.strokeRect(psx + 3, psy + 3, psz - 6, psz - 6);
+              ctx.strokeStyle = 'rgba(120, 255, 255, 0.35)';
+              ctx.lineWidth = 1;
+              ctx.strokeRect(psx + 5, psy + 5, psz - 10, psz - 10);
+              const grad = ctx.createLinearGradient(psx, psy, psx, psy + psz);
+              grad.addColorStop(0, 'rgba(0, 255, 240, 0.12)');
+              grad.addColorStop(0.5, 'rgba(0, 0, 0, 0)');
+              grad.addColorStop(1, 'rgba(0, 180, 200, 0.08)');
+              ctx.fillStyle = grad;
+              ctx.fillRect(psx + 4, psy + 4, psz - 8, psz - 8);
+              ctx.lineWidth = 1;
+              if (zDraw >= 1.15 && psz > 22) {
+                ctx.save();
+                ctx.font = `600 ${Math.max(7, Math.min(11, psz * 0.14))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(180, 255, 255, 0.5)';
+                ctx.textAlign = 'center';
+                ctx.textBaseline = 'middle';
+                ctx.fillText('DATA', psx + psz * 0.5, psy + psz * 0.38);
+                ctx.font = `500 ${Math.max(5, Math.min(8, psz * 0.1))}px "Share Tech Mono", ui-monospace, monospace`;
+                ctx.fillStyle = 'rgba(120, 230, 255, 0.38)';
+                ctx.fillText('/SEC/BLOCK', psx + psz * 0.5, psy + psz * 0.62);
+                ctx.restore();
+              }
+            }
+          }
+        }
+      }
+      if (isFrogger() && mapData.lanes) {
+        for (let y = startTileY; y <= endTileY; y++) {
+          const lane = getLane(y);
+          if (!lane || (lane.type !== 'road' && lane.type !== 'water')) continue;
+          const positions = getVehiclePositions(lane, mapData.width, timeMs);
+          const isRoad = lane.type === 'road';
+          for (let i = 0; i < positions.length; i++) {
+            const vx = positions[i];
+            const wx = vx * tileSize, wy = y * tileSize;
+            const [sx, sy] = worldToScreen(wx, wy);
+            const size = tileSize * zDraw * (isRoad ? 1.2 : 1.5);
+            ctx.fillStyle = isRoad ? '#e0a060' : '#8b7355';
+            ctx.fillRect(sx, sy, size, size * 0.7);
+            ctx.strokeStyle = isRoad ? '#c0caf5' : '#9ece6a';
+            ctx.strokeRect(sx, sy, size, size * 0.7);
+          }
+        }
+      }
+    }
+
+    if (isQuizCarry()) {
+      drawQuizCarryChoiceLabels(ctx, worldToScreen, zDraw);
+    }
+
+    if (isStack() && stackMini) {
+      drawStackMinigame(ctx, worldToScreen, zDraw);
+    }
+
+    const gauntletObsDraw = isGauntlet() ? getGauntletObsDrawPositionsAt(performance.now()) : [];
+    if (isGauntlet() && gauntletObsDraw.length) {
+      const stx = Math.max(0, Math.floor(worldMinX / tileSize));
+      const enx = Math.min(w - 1, Math.ceil(worldMaxX / tileSize));
+      const sty = Math.max(0, Math.floor(worldMinY / tileSize));
+      const eny = Math.min(h - 1, Math.ceil(worldMaxY / tileSize));
+      for (let i = 0; i < gauntletObsDraw.length; i++) {
+        const o = gauntletObsDraw[i];
+        if (!o) continue;
+        if (o.kind === 'lane' && typeof o.y === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2 || o.y < sty || o.y > eny) continue;
+          const size = tileSize * zDraw;
+          const inner = Math.max(2, size - 4);
+          const [sxC, syCellBottom] = worldToScreen((o.drawX + 0.5) * tileSize, (o.y + 1) * tileSize);
+          const dx = sxC - inner / 2;
+          const dy = syCellBottom - inner;
+          const laneRec = pickGauntletLaneImageRec(o.id);
+          if (laneRec && laneRec.img.complete && laneRec.img.naturalWidth > 0) {
+            try {
+              ctx.drawImage(laneRec.img, dx, dy, inner, inner);
+            } catch (e) {
+              ctx.fillStyle = '#f7768e';
+              ctx.fillRect(dx, dy, inner, inner);
+            }
+          } else {
+            ctx.fillStyle = '#f7768e';
+            ctx.fillRect(dx, dy, inner, inner);
+          }
+        } else if (o.kind === 'laser' && typeof o.drawX === 'number') {
+          if (o.drawX < stx - 2 || o.drawX > enx + 2) continue;
+          const { y0: laserRow0, y1: laserRow1 } = gauntletLaserRowHitRange(o, h);
+          const wx0 = o.drawX * tileSize;
+          const wx1 = (o.drawX + 1) * tileSize;
+          const wy0 = laserRow0 * tileSize;
+          const wy1 = (laserRow1 + 1) * tileSize;
+          const [sx0, syTop] = worldToScreen(wx0, wy0);
+          const [sx1, syBot] = worldToScreen(wx1, wy1);
+          const rx = Math.min(sx0, sx1);
+          const rw = Math.max(2, Math.abs(sx1 - sx0));
+          const ry = Math.min(syTop, syBot);
+          const rh = Math.abs(syBot - syTop);
+          drawGauntletLaserColumnScreen(rx, ry, rw, rh);
+        }
+      }
+    }
+
+    /** ป้ายติดตัว — กึ่งกลางลำตัว (ทับอก/เอว) แบบเดียวกับป้ายบนพื้น ไม่มีเส้นเชื่อม */
+    function drawQuizCarryHeldSignBoard(sxFeet, feetSy, halfSpriteW, spriteTopY, signText, _faceDir, choiceIndex, imageUrl, imageElementOpt) {
+      const imgUrlSan = sanitizeQuizCarryImageUrlClient(imageUrl);
+      const gridHeldDraw = imageElementOpt && imageElementOpt.complete && imageElementOpt.naturalWidth > 0 ? imageElementOpt : null;
+      const raw = String(signText || '').trim();
+      if (!raw && !imgUrlSan && !gridHeldDraw) return;
+      ctx.save();
+      const heldPs = quizCarryPlaqueMapScaleClampedPlay();
+      const bodyH = Math.max(18, feetSy - spriteTopY);
+      const midBodyY = spriteTopY + bodyH * 0.48;
+      const bodyCx = sxFeet;
+      const halfW = Math.max(10, halfSpriteW || 0);
+      const baseMaxW = Math.min(280, Math.max(100, halfW * 2.4 + tileSize * zDraw * 0.5));
+      const maxPlaqueW = Math.min(340, Math.round(baseMaxW * heldPs));
+
+      const fontPx = Math.max(12, Math.min(22, tileSize * zDraw * 0.22 * heldPs));
+      ctx.font = `600 ${fontPx}px system-ui, "Segoe UI", "Kanit", sans-serif`;
+      const padX = 12;
+      const padY = 9;
+      const maxInner = Math.min(maxPlaqueW - padX * 2, Math.max(72, tileSize * zDraw * 4.2));
+      let lines;
+      if (!raw) {
+        lines = [];
+      } else {
+        lines = canvasWordWrapLines(ctx, raw, maxInner);
+        if (!lines.length) lines = [raw];
+        if (lines.length > 3) lines = lines.slice(0, 3);
+        for (let i = 0; i < lines.length; i++) {
+          let s = lines[i];
+          if (ctx.measureText(s).width <= maxInner) continue;
+          while (s.length > 2 && ctx.measureText(s + '…').width > maxInner) s = s.slice(0, -1);
+          lines[i] = s + '…';
+        }
+      }
+      let maxLineW = 0;
+      for (let i = 0; i < lines.length; i++) {
+        const lw = ctx.measureText(lines[i]).width;
+        if (lw > maxLineW) maxLineW = lw;
+      }
+      const lineH = fontPx * 1.22;
+      let w;
+      let h;
+      if (!lines.length && (imgUrlSan || gridHeldDraw)) {
+        w = Math.ceil(Math.min(maxPlaqueW, Math.max(104, maxInner + padX * 2)));
+        h = Math.ceil(Math.max(56, fontPx * 2.8 + padY * 2));
+      } else {
+        w = Math.ceil(Math.max(maxLineW, 56) + padX * 2);
+        h = Math.ceil(lines.length * lineH + padY * 2);
+        w = Math.min(maxPlaqueW, Math.max(96, w));
+        h = Math.max(40, h);
+      }
+
+      let signX = bodyCx - w / 2;
+      let signY = midBodyY - h / 2;
+
+      if (signX + w > canvas.width - 6) signX = canvas.width - w - 6;
+      if (signX < 6) signX = 6;
+      if (signY < 6) signY = 6;
+      if (signY + h > feetSy + 8) signY = feetSy + 8 - h;
+
+      drawQuizCarryNeonPlaque(ctx, signX, signY, w, h, lines, lineH, padY, choiceIndex, null, { imageUrl: imgUrlSan, imageElement: gridHeldDraw });
+      ctx.restore();
+    }
+
+    function drawAvatar(ax, ay, isMe, name, characterId, direction, isWalking, playTint, gauntletAirTicks, gauntletScoreLabel, quizCarrySignPayload) {
+      const { cw, ch } = getCharacterFootprintWH(mapData);
+      const air = Number(gauntletAirTicks) || 0;
+      let liftWorldY = 0;
+      if (isGauntlet() && air > 0) {
+        liftWorldY = gauntletLiftHeightNorm(air, gauntletRuntimeJumpTicks) * tileSize * 0.52;
+      }
+      const cxWorld = (ax + cw * 0.5) * tileSize;
+      /* ใช้ ay แบบต่อเนื่อง — ห้าม floor(ay) เดิมทำให้เท้ากระโดดทีละช่องขณะเดิน (กระตุกแนวตั้ง) */
+      const cyBottomWorld = (ay + ch) * tileSize - liftWorldY;
+      const [sx, sy] = worldToScreen(cxWorld, cyBottomWorld);
+      const cellSpan = Math.max(cw, ch);
+      const r = Math.max(14, (tileSize * zDraw * cellSpan) / 2 - 2);
+      const size = r * 2.2;
+      const dir = direction || 'down';
+      const rawImg = getAvatarImg(characterId, dir, timeMs, isWalking);
+      const charImg = playTint
+        ? getPlayTintedAvatarSource(rawImg, characterId, dir, timeMs, isWalking, playTint)
+        : rawImg;
+      /* รองรับทั้ง <img> และ canvas จากย้อมสี (canvas ไม่มี naturalWidth → เดิมตกวงกลม) */
+      let iw = 0, ih = 0;
+      if (charImg && charImg.tagName === 'CANVAS' && charImg.width > 0 && charImg.height > 0) {
+        iw = charImg.width;
+        ih = charImg.height;
+      } else if (charImg && charImg.complete && charImg.naturalWidth) {
+        iw = charImg.naturalWidth;
+        ih = charImg.naturalHeight;
+      }
+      let halfSpriteW = r;
+      let spriteTopY = sy - 2 * r;
+      if (iw > 0 && ih > 0) {
+        const scale = Math.min(size / iw, size / ih, 1);
+        const drawW = iw * scale;
+        const drawH = ih * scale;
+        halfSpriteW = drawW / 2;
+        spriteTopY = sy - drawH;
+        ctx.drawImage(charImg, 0, 0, iw, ih, sx - drawW / 2, sy - drawH, drawW, drawH);
+      } else {
+        const cy = sy - r;
+        ctx.fillStyle = isMe ? '#7aa2f7' : '#9ece6a';
+        ctx.beginPath();
+        ctx.arc(sx, cy, r, 0, Math.PI * 2);
+        ctx.fill();
+        ctx.strokeStyle = '#c0caf5';
+        ctx.lineWidth = 2;
+        ctx.stroke();
+        spriteTopY = cy - r;
+      }
+      ctx.fillStyle = '#c0caf5';
+      ctx.font = '10px sans-serif';
+      ctx.textAlign = 'center';
+      const nameBase = name || '';
+      const withScore = isGauntlet() && typeof gauntletScoreLabel === 'number' && gauntletScoreLabel >= 0
+        ? (nameBase + ' · ' + gauntletScoreLabel)
+        : nameBase;
+      ctx.fillText(withScore, sx, sy + 10);
+      if (isQuizCarry() && quizCarrySignPayload) {
+        drawQuizCarryHeldSignBoard(
+          sx, sy, halfSpriteW, spriteTopY,
+          quizCarrySignPayload.text, dir, quizCarrySignPayload.choiceIndex,
+          quizCarrySignPayload.imageUrl,
+          quizCarrySignPayload.imageElement,
+        );
+      }
+    }
+    function quizCarrySignForEntity(ent) {
+      if (!isQuizCarry() || !quizCarryCurrent || !ent || ent.quizCarryHeld == null) return null;
+      const idx = ent.quizCarryHeld;
+      const ch = quizCarryCurrent.choices;
+      if (!Array.isArray(ch) || idx < 0 || idx >= ch.length) return null;
+      const t = String(ch[idx] != null ? ch[idx] : '').trim();
+      const imgUrl = getQuizCarryPlaqueImageUrlForIndex(quizCarryCurrent, idx);
+      const gridHeldEl = findQuizCarryGridHeldImgForChoiceIndex(idx);
+      if (!t && !imgUrl && !gridHeldEl) return null;
+      return { text: t, choiceIndex: idx, imageUrl: imgUrl, imageElement: gridHeldEl || undefined };
+    }
+    const safeX = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    const safeY = (v) => (typeof v === 'number' && !isNaN(v) ? v : 1);
+    function peerVisualOffset(id) {
+      let h = 0;
+      for (let i = 0; i < (id || '').length; i++) h = (h * 31 + (id || '').charCodeAt(i)) >>> 0;
+      return { ax: ((h % 5) - 2) * 0.1, ay: ((Math.floor(h / 5) % 5) - 2) * 0.1 };
+    }
+    const { ch: sortCh } = getCharacterFootprintWH(mapData);
+    /** ใช้แถวกริด (floor y) เป็นหลัก — ลดการสลับลำดับวาดทุกเฟรมเมื่อ y เป็น float เลอร์ป */
+    function avatarDrawDepth(ent) {
+      return Math.floor(safeY(ent.y)) + sortCh;
+    }
+    if (!isStack() && !isSpaceShooter() && !isBalloonBoss()) {
+      let mt = me.playTint;
+      if (!mt || typeof mt.head !== 'string' || typeof mt.hair !== 'string' || typeof mt.body !== 'string') {
+        mt = playTintFromPeerId(String((myId != null && myId !== '') ? myId : (nick || 'local')));
+        me.playTint = mt;
+      }
+      const meTag = isFrogger() ? (' (กบ) ' + froggerScore) : (isGauntlet() && meGauntletJumpTicks > 0 ? ' (กระโดด)' : (isJumpSurvive() && jumpSurviveEliminated ? ' (ตกรอบ)' : ' (คุณ)'));
+      const meWalking = isFrogger() ? false : (isGauntlet() ? (meGauntletJumpTicks > 0 || meGauntletJumpVis > 0.08) : !!me.isWalking);
+      const drawRows = [];
+      others.forEach((o, id) => {
+        if (!o) return;
+        drawRows.push({ isMe: false, id, o });
+      });
+      drawRows.push({ isMe: true, id: '__me', o: me });
+      drawRows.sort((a, b) => {
+        const da = avatarDrawDepth(a.o);
+        const db = avatarDrawDepth(b.o);
+        if (da !== db) return da - db;
+        const xa = Math.floor(safeX(a.o.x) * 4);
+        const xb = Math.floor(safeX(b.o.x) * 4);
+        if (xa !== xb) return xa - xb;
+        const sa = a.isMe ? '\uFFFFme' : String(a.id);
+        const sb = b.isMe ? '\uFFFFme' : String(b.id);
+        return sa < sb ? -1 : sa > sb ? 1 : 0;
+      });
+      drawRows.forEach((row) => {
+        if (!row.isMe) {
+          const id = row.id;
+          const o = row.o;
+          const off = isGauntlet() ? { ax: 0, ay: 0 } : peerVisualOffset(id);
+          const otherWalk = isGauntlet()
+            ? ((o.gauntletJumpTicks || 0) > 0 || (o.gauntletJumpVis || 0) > 0.08)
+            : (isPreviewBotId(id)
+              ? !!o.botIsWalking
+              : !!((o.tx != null && Math.abs((o.tx || o.x) - o.x) > 0.02) || (o.ty != null && Math.abs((o.ty || o.y) - o.y) > 0.02)));
+          const ot = o.playTint || playTintFromPeerId(id);
+          const faceDirOther = isGauntletFaceRightMapMno9kb07() ? 'right' : o.direction;
+          const botOut = isJumpSurvive() && isPreviewBotId(id) && o.jumpSurviveEliminated;
+          const peerName = botOut ? (o.nickname + ' (ตกรอบ)') : o.nickname;
+          if (botOut) ctx.save();
+          if (botOut) ctx.globalAlpha = 0.4;
+          drawAvatar(safeX(o.x) + off.ax, safeY(o.y) + off.ay, false, peerName, o.characterId, faceDirOther, otherWalk, ot, (o.gauntletJumpVis != null ? o.gauntletJumpVis : o.gauntletJumpTicks) || 0, o.gauntletScore || 0, quizCarrySignForEntity(o));
+          if (botOut) ctx.restore();
+        } else {
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.save();
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.globalAlpha = 0.4;
+          const faceDirMe = isGauntletFaceRightMapMno9kb07() ? 'right' : me.direction;
+          drawAvatar(safeX(me.x), safeY(me.y), true, me.nickname + meTag, me.characterId, faceDirMe, meWalking, mt, meGauntletJumpVis, me.gauntletScore || 0, quizCarrySignForEntity(me));
+          if (isJumpSurvive() && jumpSurviveEliminated) ctx.restore();
+        }
+      });
+    }
+    if (isFrogger()) {
+      ctx.fillStyle = '#7aa2f7';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      ctx.fillText('โหมดกบ | คะแนน: ' + froggerScore, 10, 24);
+    }
+    if (isJumpSurvive() && !useCyberPlayHud()) {
+      ctx.fillStyle = 'rgba(148, 226, 213, 0.95)';
+      ctx.font = '600 12px system-ui, "Segoe UI", "Kanit", sans-serif';
+      ctx.textAlign = 'left';
+      if (jumpSurviveEliminated) {
+        ctx.fillStyle = 'rgba(247, 118, 190, 0.95)';
+        ctx.fillText('คุณตกรอบแล้ว (ชนหรือหลุดเพดาน/พื้นจอ) · เล่นต่อไม่ได้ — ดูเพื่อนได้ · รอรอบใหม่หรือออกจากห้อง', 10, 22);
+      } else {
+        ctx.fillText('กระโดดให้รอด · Space / W / ↑ · A D / ← → · แพลตฟอร์มวน · ชนหรือหลุดบน/ล่างจอ = ตกรอบ (ดูเพื่อนต่อ)', 10, 22);
+      }
+    }
+    if (isGauntlet() && !useCyberPlayHud()) {
+      ctx.fillStyle = '#f7768e';
+      ctx.font = 'bold 14px sans-serif';
+      ctx.textAlign = 'left';
+      if (isGauntletCrownHeistMapPlay()) {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน ' + (me.gauntletScore || 0) + ' · ชน -10 · ขอบซ้ายตาย · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · จบเกมมีโบนัสอันดับ + เกรดทีม', 10, 42);
+      } else {
+        ctx.fillText('พรมแดงสุดท้าย | คะแนน: ' + (me.gauntletScore || 0) + ' (ข้าม 1 ชิ้น +1) · สูงสุด 6 คน', 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / W / ↑ = กระโดด · เลน + เลเซอร์ · ข้ามสำเร็จ → ขวา 1 + คะแนน · ชน → ซ้าย 1', 10, 42);
+      }
+      ctx.fillStyle = '#e0af68';
+      if (gauntletEndsAtMs != null && Number.isFinite(gauntletEndsAtMs)) {
+        const rem = Math.max(0, Math.ceil((gauntletEndsAtMs - Date.now()) / 1000));
+        const mm = Math.floor(rem / 60);
+        const ss = rem % 60;
+        const clock = `${mm}:${String(ss).padStart(2, '0')}`;
+        ctx.fillText(`เหลือเวลา ${clock} · Time left ${clock}`, 10, 60);
+      } else if (gauntletRuntimeTimeLimitSec > 0) {
+        ctx.fillText('เวลา: กำลังซิงก์จากเซิร์ฟเวอร์... · Syncing timer...', 10, 60);
+      } else {
+        ctx.fillText('เวลา: ไม่จำกัด · No time limit (ตั้งได้ที่ Admin → เวลาเกม)', 10, 60);
+      }
+    }
+    if (isStack() && stackMini) {
+      if (previewFillBots) {
+        ctx.fillStyle = 'rgba(125, 220, 255, 0.9)';
+        ctx.font = '600 12px ui-sans-serif, system-ui, sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack · shared tower · Space / click = release on your turn', 10, 22);
+        drawStackPreviewCyberHud(ctx, canvas.width, canvas.height);
+      } else {
+        ctx.fillStyle = '#7dcfff';
+        ctx.font = 'bold 15px sans-serif';
+        ctx.textAlign = 'left';
+        ctx.fillText('Stack | คะแนน ' + stackMini.score + ' · ชีวิต ' + stackMini.lives + ' · combo x' + (stackMini.combo || 0), 10, 24);
+        ctx.font = '12px sans-serif';
+        ctx.fillStyle = '#c0caf5';
+        ctx.fillText('Space / คลิก = ปล่อย', 10, 44);
+      }
+    }
+    if (isQuiz() || isQuizCarry() || isQuizBattle()) {
+      syncPlayQuizMapPanel();
+      syncQuizCarryEmbedQuestionStrip();
+    }
+    /* timeup ต้องซิงก์ทุกเฟรมแม้จบเซสชัน — อย่าให้อยู่ในเงื่อนไขด้านบนอย่างเดียว */
+    syncQuizCarryTimeupDeskLayerPosition();
+    if (previewFillBots && mapData && !useCyberPlayHud()) {
+      const human = countPlayHumans();
+      const bots = [...others.keys()].filter(isPreviewBotId).length;
+      ctx.save();
+      ctx.setTransform(1, 0, 0, 1, 0, 0);
+      ctx.fillStyle = 'rgba(26,27,38,0.78)';
+      const hudW = isStack() ? Math.min(canvas.width - 12, 520) : Math.min(canvas.width - 12, 320);
+      ctx.fillRect(6, canvas.height - 38, hudW, 30);
+      ctx.fillStyle = '#a9b1d6';
+      ctx.font = '12px sans-serif';
+      ctx.textAlign = 'left';
+      let line = 'ทดสอบ: คนจริง ' + human + ' + บอท ' + bots + ' (เป้า ' + previewTargetHeadcount + ' คน)';
+      if (isStack()) {
+        line += ' · ตึกร่วม + HUD ซ้าย/ขวา';
+      }
+      ctx.fillText(line, 12, canvas.height - 18);
+      ctx.restore();
+    }
+    if (isSpaceShooter()) {
+      drawSpaceShooterCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isBalloonBoss()) {
+      drawBalloonBossCombatLayer(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (isQuizCarry()) {
+      drawQuizCarryEmbedCountdownHighlight(ctx, worldToScreen, zDraw, timeMs);
+    }
+    if (previewMode && editorEmbedReturn && isQuizCarry() && quizCarryEmbedCountdownEndAt > Date.now()) {
+      syncQuizCarryEmbedCountdownLayout();
+    }
+    syncPlayCyberHud();
+    syncQuizCarryGrabButton();
+  }
+
+  document.addEventListener('keydown', (e) => {
+    if (isMovementKey(e.code) && isChatFocused()) return;
+    if ((isSpaceShooter() || isBalloonBoss()) && mapData && !isChatFocused()) {
+      if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+      }
+    }
+    if (isStack() && mapData && !isChatFocused()) {
+      if (e.code === 'Space') {
+        e.preventDefault();
+        tryHumanStackDrop();
+        return;
+      }
+      if (['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isGauntlet() && mapData && !isChatFocused()) {
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (isGauntletCrownPregameBlockingPlay()) return;
+        if (isGauntletCrownHeistMapPlay() && me.gauntletEliminated) return;
+        const now = Date.now();
+        if (now - lastGauntletJumpKey < 200) return;
+        lastGauntletJumpKey = now;
+        socket.emit('gauntlet-jump');
+        return;
+      }
+      if (['ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isJumpSurvive() && mapData && !isChatFocused()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (jumpSurviveEliminated) {
+        if (['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'].includes(e.code)) e.preventDefault();
+        return;
+      }
+      if (e.code === 'Space' || e.code === 'ArrowUp' || e.code === 'KeyW') {
+        e.preventDefault();
+        if (!e.repeat) jumpSurviveJumpQueued = true;
+        return;
+      }
+      if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+        e.preventDefault();
+        return;
+      }
+    }
+    if (isQuizBattle() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyE') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryOpenQuizBattleFromKey();
+        return;
+      }
+    }
+    if (isQuizCarry() && mapData && !isChatFocused()) {
+      if (e.code === 'KeyF') {
+        e.preventDefault();
+        if (!e.repeat && myId != null) tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+        return;
+      }
+    }
+    keys[e.code] = true;
+    keys[e.key] = true;
+    if (['ArrowUp','ArrowDown','ArrowLeft','ArrowRight'].includes(e.code)) e.preventDefault();
+    if (isFrogger() && mapData && !isChatFocused()) {
+      const now = Date.now();
+      if (now - lastFroggerKey < 280) return;
+      let dx = 0, dy = 0;
+      if (e.code === 'ArrowUp' || e.code === 'KeyW') { dy = -1; me.direction = 'up'; }
+      else if (e.code === 'ArrowDown' || e.code === 'KeyS') { dy = 1; me.direction = 'down'; }
+      else if (e.code === 'ArrowLeft' || e.code === 'KeyA') { dx = -1; me.direction = 'left'; }
+      else if (e.code === 'ArrowRight' || e.code === 'KeyD') { dx = 1; me.direction = 'right'; }
+      if (dx !== 0 || dy !== 0) {
+        const nx = Math.round(me.x) + dx, ny = Math.round(me.y) + dy;
+        if (nx >= 0 && nx < mapData.width && ny >= 0 && ny < mapData.height) {
+          const row = mapData.objects && mapData.objects[ny];
+          if (!row || row[nx] !== 1) {
+            me.x = nx; me.y = ny;
+            lastFroggerKey = now;
+            socket.emit('move', { x: me.x, y: me.y, direction: me.direction });
+            const lane = getLane(Math.floor(me.y));
+            if (lane && lane.type === 'goal') { froggerScore++; respawnFrogger(); }
+            else if (checkFroggerCollision()) respawnFrogger();
+          }
+        }
+      }
+    }
+  });
+  document.addEventListener('keyup', (e) => { keys[e.code] = false; keys[e.key] = false; });
+
+  let lastSend = 0;
+  function tick() {
+    if (!mapData) { requestAnimationFrame(tick); return; }
+    if (isStack()) {
+      stackTickFrame();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isJumpSurvive()) {
+      if (isJumpSurviveMissionPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      jumpSurviveTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isSpaceShooter()) {
+      spaceShooterTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isBalloonBoss()) {
+      balloonBossTickFrame();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isFrogger()) {
+      if (checkFroggerCollision()) respawnFrogger();
+      me.isWalking = false;
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isGauntlet()) {
+      if (isGauntletCrownPregameBlockingPlay()) {
+        me.isWalking = false;
+        draw();
+        requestAnimationFrame(tick);
+        return;
+      }
+      me.isWalking = meGauntletJumpTicks > 0;
+      const stepGauntletJumpVis = (vis, tgt) => {
+        const t = Number(tgt) || 0;
+        let v = Number(vis) || 0;
+        const d = t - v;
+        const k = d < 0 ? 0.68 : 0.4;
+        return v + d * k;
+      };
+      meGauntletJumpVis = stepGauntletJumpVis(meGauntletJumpVis, meGauntletJumpTicks);
+      const mp = lerpGauntletEntityPos(me.x, me.y, me.tx, me.ty);
+      me.x = mp.nx;
+      me.y = mp.ny;
+      others.forEach((o) => {
+        const op = lerpGauntletEntityPos(o.x, o.y, o.tx, o.ty);
+        o.x = op.nx;
+        o.y = op.ny;
+        if (o.gauntletJumpVis == null) o.gauntletJumpVis = o.gauntletJumpTicks || 0;
+        o.gauntletJumpVis = stepGauntletJumpVis(o.gauntletJumpVis, o.gauntletJumpTicks || 0);
+      });
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    /* บอท preview ขยับที่ o.x/o.y โดยตรง — ห้าม LERP กับ tx/ty เพราะ stepPreviewBots เคยตั้ง tx=ก่อนเดิน ทำให้โดนดึงถอย ~20%/เฟรม กระตุกและแทบไม่ไป */
+    others.forEach((o, id) => {
+      if (previewFillBots && isPreviewBotId(id)) return;
+      if (o.tx != null) o.x += (o.tx - o.x) * LERP;
+      if (o.ty != null) o.y += (o.ty - o.y) * LERP;
+    });
+    tickQuizCarryEmbedCountdown();
+    tickQuizCarryRoundTimers();
+    updateQuizCarryCarryPhaseHud();
+    stepPreviewBots();
+    if (isChatFocused()) {
+      me.isWalking = false;
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    if (isQuizCarryEmbedLobbyBlockingMovement() || isQuizCarryEmbedCountdownBlockingMovement()) {
+      me.isWalking = false;
+      playPath = [];
+      enforceQuizBattleLaneOnMePlay();
+      draw();
+      requestAnimationFrame(tick);
+      return;
+    }
+    const w = mapData.width || 20, h = mapData.height || 15;
+    let accX = 0, accY = 0;
+    let usePath = false;
+    const keyPressed = keys['ArrowUp'] || keys['KeyW'] || keys['ArrowDown'] || keys['KeyS'] || keys['ArrowLeft'] || keys['KeyA'] || keys['ArrowRight'] || keys['KeyD'];
+    if (playPath.length > 0 && keyPressed) playPath = [];
+    if (playPath.length > 0) {
+      const way = playPath[0];
+      const dx = way.x - me.x, dy = way.y - me.y;
+      const dist = Math.sqrt(dx * dx + dy * dy);
+      if (dist <= PATH_ARRIVE_THRESH) {
+        playPath.shift();
+        /* ข้าม waypoint ที่ซ้ำตำแหน่ง — กัน acc=0 ทั้งที่ยังมี path (เดินขึ้น/ลงแล้วแอนิเมชันค้าง) */
+        while (playPath.length > 0) {
+          const w2 = playPath[0];
+          const ux = w2.x - me.x, uy = w2.y - me.y;
+          if (Math.sqrt(ux * ux + uy * uy) > PATH_ARRIVE_THRESH) break;
+          playPath.shift();
+        }
+        if (playPath.length === 0) {
+          me.isWalking = false;
+          me.x = Math.max(0, Math.min(w - 0.01, me.x));
+          me.y = Math.max(0, Math.min(h - 0.01, me.y));
+          enforceQuizBattleLaneOnMePlay();
+          const t = Date.now();
+          if (t - lastSend > 80) { lastSend = t; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+          draw();
+          requestAnimationFrame(tick);
+          return;
+        }
+        usePath = true;
+        const next = playPath[0];
+        accX = next.x - me.x;
+        accY = next.y - me.y;
+      } else {
+        usePath = true;
+        accX = dx;
+        accY = dy;
+      }
+      if (usePath && (accX !== 0 || accY !== 0)) {
+        if (Math.abs(accY) > Math.abs(accX)) me.direction = accY > 0 ? 'down' : 'up';
+        else me.direction = accX > 0 ? 'right' : 'left';
+      }
+    }
+    if (!usePath) {
+      if (keys['ArrowUp'] || keys['KeyW']) { accY = -1; me.direction = 'up'; }
+      if (keys['ArrowDown'] || keys['KeyS']) { accY = 1; me.direction = 'down'; }
+      if (keys['ArrowLeft'] || keys['KeyA']) { accX = -1; me.direction = 'left'; }
+      if (keys['ArrowRight'] || keys['KeyD']) { accX = 1; me.direction = 'right'; }
+    }
+    const preWalkX = me.x, preWalkY = me.y;
+    if (accX !== 0 || accY !== 0) {
+      const len = Math.sqrt(accX * accX + accY * accY) || 1;
+      const step = Math.min(MOVE_SPEED, len);
+      const nx = me.x + (accX / len) * step;
+      const ny = me.y + (accY / len) * step;
+      /** Quiz Battle + เส้นทาง: ห้ามเลื่อนแกนเดียว (slide) — ไม่งั้นเดินทแยงหลุดออกนอกเลนได้ */
+      const pathStrict = isQuizBattle() && quizBattlePathModeActive(mapData);
+      if (canWalkLikeLobby(nx, ny, me.x, me.y)) {
+        me.x = nx;
+        me.y = ny;
+      } else if (!pathStrict) {
+        if (canWalkLikeLobby(nx, me.y, me.x, me.y)) {
+          me.x = nx;
+        } else if (canWalkLikeLobby(me.x, ny, me.x, me.y)) {
+          me.y = ny;
+        }
+      }
+    }
+    me.x = Math.max(0, Math.min(w - 0.01, me.x));
+    me.y = Math.max(0, Math.min(h - 0.01, me.y));
+    enforceQuizBattleLaneOnMePlay();
+    const movedThisTick = Math.abs(me.x - preWalkX) > 1e-5 || Math.abs(me.y - preWalkY) > 1e-5;
+    me.isWalking = !!(accX !== 0 || accY !== 0) || playPath.length > 0 || movedThisTick;
+    const now = Date.now();
+    if (now - lastSend > 80) { lastSend = now; socket.emit('move', { x: me.x, y: me.y, direction: me.direction }); }
+    draw();
+    requestAnimationFrame(tick);
+  }
+
+  const chatForm = document.getElementById('chat-form');
+  if (chatForm) {
+    chatForm.addEventListener('submit', (e) => {
+      e.preventDefault();
+      const input = document.getElementById('chat-input');
+      const text = (input && input.value || '').trim();
+      if (text) { socket.emit('chat', text); if (input) input.value = ''; }
+    });
+  }
+  document.getElementById('btn-leave').addEventListener('click', () => {
+    socket.emit('leave-space');
+    const mid = params.get('map');
+    if (previewMode && mid) {
+      var edQ = '?id=' + encodeURIComponent(mid) + (editorEmbedReturn ? '&embed=1' : '');
+      window.location.replace(BASE + '/editor.html' + edQ);
+    } else {
+      window.location.replace(BASE + '/lobby.html');
+    }
+  });
+  (function wireQuizBattleMcqModal() {
+    const ov = document.getElementById('quiz-battle-mcq-overlay');
+    if (!ov) return;
+    ov.addEventListener('click', (e) => {
+      const t = e.target;
+      if (!t) return;
+      if (t.classList && t.classList.contains('quiz-battle-choice')) {
+        const idx = parseInt(t.getAttribute('data-idx'), 10);
+        if (Number.isFinite(idx) && idx >= 0 && idx <= 2) trySubmitQuizBattleChoice(idx);
+        return;
+      }
+      if (t.id === 'quiz-battle-mcq-close') {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+        return;
+      }
+      if (t.classList && t.classList.contains('quiz-battle-mcq-backdrop')) {
+        quizBattleModalCompId = null;
+        hideQuizBattleMcqModal();
+      }
+    });
+  })();
+  (function wireQuizCarryGrabButton() {
+    const btn = document.getElementById('quiz-carry-grab-btn');
+    if (!btn) return;
+    btn.addEventListener('click', (ev) => {
+      if (!isQuizCarry() || !mapData || isChatFocused()) return;
+      if (!btn.classList.contains('quiz-carry-grab-btn--active')) return;
+      ev.preventDefault();
+      if (myId == null) return;
+      tryQuizCarryInteractionForPlayer(myId, me.x, me.y, { fromKey: true });
+    });
+  })();
+
+  (function wireGauntletCrownHowtoPrimary() {
+    const btn = document.getElementById('btn-gch-ready');
+    if (!btn) return;
+    btn.addEventListener('click', () => {
+      if (isJumpSurviveMissionUiMapPlay()) {
+        if (jumpSurviveMissionPhase !== 'howto') return;
+        const humans = quizCarryPregameHumanIds();
+        if (!(humans.length === 1 || isMePlayHost())) return;
+        beginJumpSurviveMissionCountdownThenRun();
+        return;
+      }
+      if (!isGauntletCrownHeistMapPlay()) return;
+      if (gauntletCrownPregamePhase !== 'howto') return;
+      if (myId == null || !isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!gauntletCrownLobbyReadyMap[id]);
+      if (humansReady) {
+        if (humans.length === 1 && isMePlayHost()) {
+          beginGauntletCrownCountdownThenRun();
+          return;
+        }
+        socket.emit('gauntlet-crown-lobby-start', {}, (r) => {
+          if (!r || !r.ok) { /* ignore */ }
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !gauntletCrownLobbyReadyMap[sid];
+      gauntletCrownLobbyReadyMap[sid] = next;
+      updateGauntletCrownHowtoHud();
+      socket.emit('gauntlet-crown-lobby-ready', { ready: next });
+    });
+  })();
+
+  (function wireQuizCarryPregameOverlay() {
+    const primary = document.getElementById('quiz-carry-pregame-primary');
+    if (!primary) return;
+    primary.addEventListener('click', () => {
+      if (!quizCarryPregameActive || myId == null) return;
+      if (!isMePlayHost()) return;
+      const humans = quizCarryPregameHumanIds();
+      const humansReady = humans.length > 0 && humans.every((id) => !!quizCarryLobbyReadyMap[id]);
+      if (humansReady) {
+        /* ผู้เล่นจริงคนเดียว + พรีวิว: ไม่ต้องรอ ACK เซิร์ฟ (ห้องที่ map บนเซิร์ฟยังไม่ใช่ quiz_carry จะเคยล้มเหลว) */
+        if (humans.length === 1 && isMePlayHost()) {
+          endQuizCarryEmbedPregameAndStart();
+          return;
+        }
+        socket.emit('quiz-carry-lobby-start', {}, (r) => {
+          if (!r || !r.ok) showQuizCarryToast((r && r.error) || 'START ไม่ได้', false);
+        });
+        return;
+      }
+      const sid = String(myId);
+      const next = !quizCarryLobbyReadyMap[sid];
+      quizCarryLobbyReadyMap[sid] = next;
+      updateQuizCarryPregameHud();
+      socket.emit('quiz-carry-lobby-ready', { ready: next });
+    });
+  })();
+  window.addEventListener('beforeunload', () => socket.emit('leave-space'));
+  window.addEventListener('resize', () => {
+    if (!mapData || !canvas) return;
+    resizeCanvas();
+    draw();
+  });
+})();
diff --git a/www/html/Game/public/qb-editor.html b/www/html/Game/public/qb-editor.html
new file mode 100644
index 0000000..b3735c8
--- /dev/null
+++ b/www/html/Game/public/qb-editor.html
@@ -0,0 +1,284 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>ตั้งค่าฉาก Quiz Battle</title>
+<style>
+  * { box-sizing: border-box; }
+  :root { --bg:#0a0f20; --panel:#141a32cc; --line:#2a3357; --txt:#eef2ff; --accent:#22d3ee; }
+  html,body { margin:0; height:100%; overflow:hidden; }
+  body { background:var(--bg); color:var(--txt); font-family:'Kanit','Sarabun','Segoe UI',system-ui,sans-serif; }
+
+  /* ===== map เต็มจอ อยู่ข้างหลัง ตรงกลาง ===== */
+  #workspace {
+    position:fixed; inset:0; z-index:1;
+    display:flex; align-items:center; justify-content:center;
+    overflow:auto; padding:10px;
+    background:radial-gradient(ellipse at 50% 0,rgba(40,60,120,.22),transparent 60%);
+  }
+  .canvas-wrap { position:relative; box-shadow:0 12px 50px rgba(0,0,0,.6); border-radius:6px; overflow:hidden; }
+  canvas { display:block; cursor:crosshair; touch-action:none; }
+
+  /* ===== แถบเครื่องมือลอย (ดัก/พับได้) ===== */
+  #toolbar { position:fixed; z-index:20; width:288px; max-height:94vh; overflow:auto;
+    background:var(--panel); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
+    border:1px solid var(--line); border-radius:16px; box-shadow:0 10px 40px rgba(0,0,0,.5);
+    display:flex; flex-direction:column; gap:12px; padding:14px; transition:opacity .15s, transform .15s; }
+  /* ตำแหน่งดัก */
+  #toolbar.dock-right  { top:50%; right:14px; left:auto; bottom:auto; transform:translateY(-50%); }
+  #toolbar.dock-left   { top:50%; left:14px;  right:auto; bottom:auto; transform:translateY(-50%); }
+  #toolbar.dock-top    { top:14px; left:50%;  right:auto; bottom:auto; transform:translateX(-50%); width:min(96vw,720px); flex-direction:row; flex-wrap:wrap; align-items:center; }
+  #toolbar.dock-bottom { bottom:14px; left:50%; right:auto; top:auto; transform:translateX(-50%); width:min(96vw,720px); flex-direction:row; flex-wrap:wrap; align-items:center; }
+  #toolbar.dock-top .grow, #toolbar.dock-bottom .grow { flex:1 1 150px; }
+  #toolbar.dock-top .tools, #toolbar.dock-bottom .tools { grid-template-columns:repeat(4,1fr); }
+
+  #toolbar.collapsed { display:none; }
+
+  .tb-head { display:flex; align-items:center; gap:8px; }
+  .tb-title { font-size:15px; font-weight:700; flex:1; white-space:nowrap; }
+  .tb-head .ico-btn { font-size:15px; }
+  .ico-btn { border:1px solid var(--line); background:#0d1430; color:var(--txt); border-radius:9px; width:32px; height:32px; display:grid; place-items:center; cursor:pointer; font-size:14px; }
+  .ico-btn:hover { filter:brightness(1.2); }
+  .ico-btn.on { border-color:var(--accent); background:rgba(34,211,238,.16); }
+  .dockset { display:flex; gap:5px; }
+
+  .field { display:flex; flex-direction:column; gap:5px; }
+  .field > span { font-size:11.5px; color:#a9b4dd; font-weight:600; }
+  select { width:100%; background:#0d1430; color:var(--txt); border:1px solid var(--line); border-radius:10px; padding:9px 10px; font:inherit; font-weight:600; }
+  .tools { display:grid; grid-template-columns:1fr 1fr; gap:7px; }
+  .tool { display:flex; flex-direction:column; align-items:center; gap:3px; padding:10px 4px; border:2px solid var(--line); background:#0d1430; color:var(--txt); border-radius:11px; cursor:pointer; font-weight:600; font-size:12.5px; transition:.12s; }
+  .tool .ic { font-size:20px; line-height:1; }
+  .tool:hover { border-color:#3b4570; filter:brightness(1.1); }
+  .tool.active { border-color:var(--accent); background:rgba(34,211,238,.16); box-shadow:0 0 0 1px var(--accent) inset; }
+  .row { display:flex; gap:7px; } .row > * { flex:1; }
+  .btn { border:none; border-radius:10px; padding:10px 12px; font:inherit; font-weight:700; cursor:pointer; color:#04121f; background:linear-gradient(180deg,#67e8f9,#22d3ee); white-space:nowrap; }
+  .btn.sec { background:#1e2747; color:#eef2ff; border:1px solid var(--line); }
+  .btn:disabled { opacity:.5; cursor:default; }
+  .stat { font-size:12px; color:#cfd7ff; background:#0d1430; border:1px solid var(--line); border-radius:10px; padding:8px 11px; line-height:1.6; }
+  .stat b { color:var(--accent); }
+  .toast { font-size:12.5px; font-weight:600; min-height:16px; }
+  .toast.ok { color:#6ee7b7; } .toast.err { color:#fca5a5; }
+  .hint { font-size:11.5px; color:#9fb0e6; line-height:1.5; }
+
+  /* ปุ่มเปิดแถบ (ตอนพับ) */
+  #reopen { position:fixed; z-index:21; top:14px; right:14px; display:none;
+    border:1px solid var(--line); background:var(--panel); backdrop-filter:blur(8px);
+    color:var(--txt); border-radius:12px; padding:10px 16px; font:inherit; font-weight:700; cursor:pointer; box-shadow:0 6px 20px rgba(0,0,0,.4); }
+  #reopen.show { display:block; }
+  .brushlabel { position:fixed; bottom:12px; left:14px; z-index:15; background:rgba(8,12,28,.85); border:1px solid var(--line); padding:7px 13px; border-radius:999px; font-size:12.5px; font-weight:600; pointer-events:none; }
+</style>
+</head>
+<body>
+  <!-- map เต็มจอ ข้างหลัง -->
+  <div id="workspace"><div class="canvas-wrap"><canvas id="cv"></canvas></div></div>
+
+  <!-- ปุ่มเปิดแถบเครื่องมือ (โผล่ตอนพับ) -->
+  <button id="reopen">🧰 เครื่องมือ</button>
+
+  <!-- แถบเครื่องมือลอย -->
+  <div id="toolbar" class="dock-right">
+    <div class="tb-head">
+      <span class="tb-title">🗺️ ตั้งค่าฉาก</span>
+      <div class="dockset" title="ย้ายตำแหน่งแถบ">
+        <button class="ico-btn" data-dock="top" title="บน">⬆</button>
+        <button class="ico-btn" data-dock="left" title="ซ้าย">⬅</button>
+        <button class="ico-btn" data-dock="right" title="ขวา">➡</button>
+        <button class="ico-btn" data-dock="bottom" title="ล่าง">⬇</button>
+      </div>
+      <button class="ico-btn" id="btn-collapse" title="พับเก็บ">✕</button>
+    </div>
+
+    <div class="field grow"><span>ห้อง (หัวข้อ)</span><select id="room-select"></select></div>
+
+    <div class="field grow">
+      <span>เครื่องมือ — คลิก/ลากบนภาพ</span>
+      <div class="tools">
+        <button class="tool active" data-tool="path"><span class="ic">🛣️</span>เส้นทาง</button>
+        <button class="tool" data-tool="dome"><span class="ic">❓</span>จุดคำถาม</button>
+        <button class="tool" data-tool="spawn"><span class="ic">🚩</span>จุดเกิด</button>
+        <button class="tool" data-tool="erase"><span class="ic">🧽</span>ยางลบ</button>
+      </div>
+    </div>
+
+    <div class="field"><span>ขนาดพู่กัน</span>
+      <select id="brush"><option value="1">1×1</option><option value="2" selected>2×2</option><option value="3">3×3</option></select>
+    </div>
+
+    <div class="stat grow" id="stat">—</div>
+
+    <div class="row">
+      <button class="btn sec" id="btn-clear-path">ล้างเส้นทาง</button>
+      <button class="btn sec" id="btn-clear-dome">ล้างจุดคำถาม</button>
+    </div>
+    <button class="btn grow" id="btn-save">💾 บันทึก</button>
+    <button class="btn sec grow" id="btn-test">▶ ทดสอบเล่น</button>
+    <div class="toast" id="toast"></div>
+    <div class="hint">วางจุดคำถามให้ตรงแท่นในภาพ · ลากเส้นทางจากจุดเกิดด้านบนลงไปถึงปลายล่าง · ไม่วาดเส้นทาง = เดินอิสระ</div>
+  </div>
+
+  <div class="brushlabel" id="brushlabel">🛣️ เส้นทาง</div>
+
+<script>
+(function(){
+  'use strict';
+  var BASE = '/Game';
+  var ROOMS = ['กฎหมายใกล้ตัว','กฎหมายสิทธิ์พื้นฐาน','กฎหมายจราจร','คดีเกี่ยวกับทรัพย์','คดีหมิ่นประมาท','คดีทางเพศ','คดีอาชญากรรม','อาชญากรรมออนไลน์','กระบวนการยุติธรรม','งานบริการกระทรวงยุติธรรม'];
+  var qs = new URLSearchParams(location.search);
+  var curId = qs.get('id') || 'qbroom1';
+
+  var map=null, W=24, H=49, path=[], dome=[], spawn={x:11,y:2};
+  var bgImg=new Image(), tool='path', brush=2, painting=false, paintVal=1;
+
+  var cv=document.getElementById('cv'), ctx=cv.getContext('2d');
+  var toastEl=document.getElementById('toast'), statEl=document.getElementById('stat'), brushLabel=document.getElementById('brushlabel');
+  var toolbar=document.getElementById('toolbar'), reopen=document.getElementById('reopen');
+
+  function toast(m,ok){ toastEl.textContent=m||''; toastEl.className='toast '+(ok===false?'err':ok===true?'ok':''); }
+  function emptyGrid(w,h){ var a=[]; for(var y=0;y<h;y++){var r=[];for(var x=0;x<w;x++)r.push(0);a.push(r);} return a; }
+  function norm(src,w,h){ var a=emptyGrid(w,h); if(Array.isArray(src)){for(var y=0;y<h;y++){var row=src[y]||[];for(var x=0;x<w;x++)a[y][x]=row[x]===1?1:0;}} return a; }
+
+  // ===== แถบเครื่องมือ: ดัก + พับ (จำค่าใน localStorage) =====
+  function setDock(d){
+    toolbar.className = toolbar.className.replace(/dock-\w+/g,'').trim();
+    toolbar.classList.add('dock-'+d);
+    document.querySelectorAll('.dockset .ico-btn').forEach(function(b){ b.classList.toggle('on', b.getAttribute('data-dock')===d); });
+    try{ localStorage.setItem('qbEdDock', d); }catch(e){}
+    setTimeout(layout,0);
+  }
+  document.querySelectorAll('.dockset .ico-btn').forEach(function(b){ b.addEventListener('click',function(){ setDock(b.getAttribute('data-dock')); }); });
+  function setCollapsed(c){
+    toolbar.classList.toggle('collapsed', c);
+    reopen.classList.toggle('show', c);
+    try{ localStorage.setItem('qbEdCollapsed', c?'1':'0'); }catch(e){}
+  }
+  document.getElementById('btn-collapse').addEventListener('click',function(){ setCollapsed(true); });
+  reopen.addEventListener('click',function(){ setCollapsed(false); });
+  // restore prefs
+  var savedDock='right'; try{ savedDock=localStorage.getItem('qbEdDock')||'right'; }catch(e){}
+  setDock(savedDock);
+  try{ if(localStorage.getItem('qbEdCollapsed')==='1') setCollapsed(true); }catch(e){}
+
+  // room dropdown
+  var sel=document.getElementById('room-select');
+  for(var i=1;i<=10;i++){ var o=document.createElement('option'); o.value='qbroom'+i; o.textContent='ห้อง '+i+' — '+ROOMS[i-1]; sel.appendChild(o); }
+  sel.value=curId;
+  sel.addEventListener('change',function(){ location.search='?id='+encodeURIComponent(sel.value); });
+
+  // tools
+  document.querySelectorAll('.tool').forEach(function(b){
+    b.addEventListener('click',function(){
+      document.querySelectorAll('.tool').forEach(function(x){x.classList.remove('active');});
+      b.classList.add('active'); tool=b.getAttribute('data-tool');
+      brushLabel.textContent = b.querySelector('.ic').textContent+' '+b.textContent.trim();
+    });
+  });
+  document.getElementById('brush').addEventListener('change',function(e){ brush=parseInt(e.target.value,10)||1; });
+
+  function load(){
+    toast('กำลังโหลดฉาก…');
+    fetch(BASE+'/api/maps/'+encodeURIComponent(curId)+'?_='+Date.now(),{cache:'no-store'})
+      .then(function(r){ if(!r.ok) throw new Error('โหลดฉากไม่ได้ ('+r.status+')'); return r.json(); })
+      .then(function(m){
+        map=m; W=m.width||24; H=m.height||49;
+        path=norm(m.quizBattlePathArea,W,H); dome=norm(m.quizBattleDomeArea,W,H);
+        spawn=(m.spawn&&typeof m.spawn.x==='number')?{x:m.spawn.x,y:m.spawn.y}:{x:11,y:2};
+        if(m.backgroundImage){ bgImg=new Image(); bgImg.onload=draw; bgImg.onerror=draw; bgImg.src=m.backgroundImage+(m.backgroundImage.indexOf('?')<0?('?_='+Date.now()):''); }
+        toast('โหลด "'+(m.name||curId)+'" แล้ว',true); layout();
+      })
+      .catch(function(e){ toast(e.message,false); });
+  }
+
+  function layout(){
+    var maxH=Math.max(300,window.innerHeight-24);
+    var maxW=Math.max(200,window.innerWidth-24);
+    var cell=Math.min(maxH/H, maxW/W); cell=Math.max(6,Math.floor(cell));
+    cv.width=W*cell; cv.height=H*cell; cv._cell=cell; draw();
+  }
+
+  function draw(){
+    var cell=cv._cell, w=cv.width, h=cv.height;
+    ctx.clearRect(0,0,w,h);
+    if(bgImg&&bgImg.complete&&bgImg.naturalWidth) ctx.drawImage(bgImg,0,0,w,h);
+    else { ctx.fillStyle='#10162e'; ctx.fillRect(0,0,w,h); }
+    ctx.strokeStyle='rgba(255,255,255,.06)'; ctx.lineWidth=1;
+    for(var x=0;x<=W;x++){ ctx.beginPath(); ctx.moveTo(x*cell+.5,0); ctx.lineTo(x*cell+.5,h); ctx.stroke(); }
+    for(var y=0;y<=H;y++){ ctx.beginPath(); ctx.moveTo(0,y*cell+.5); ctx.lineTo(w,y*cell+.5); ctx.stroke(); }
+    ctx.fillStyle='rgba(122,162,247,.42)';
+    for(var py=0;py<H;py++) for(var px=0;px<W;px++) if(path[py][px]) ctx.fillRect(px*cell,py*cell,cell,cell);
+    var num=0;
+    for(var dy2=0;dy2<H;dy2++) for(var dx2=0;dx2<W;dx2++) if(dome[dy2][dx2]){
+      num++; var cx=dx2*cell+cell/2, cy=dy2*cell+cell/2, r=Math.max(8,cell*0.62);
+      ctx.beginPath(); ctx.arc(cx,cy,r,0,Math.PI*2); ctx.fillStyle='rgba(255,209,102,.92)'; ctx.fill();
+      ctx.lineWidth=2; ctx.strokeStyle='#7a5a10'; ctx.stroke();
+      ctx.fillStyle='#3a2c00'; ctx.font='bold '+Math.max(10,cell*0.7)+'px Kanit,sans-serif';
+      ctx.textAlign='center'; ctx.textBaseline='middle'; ctx.fillText(String(num),cx,cy+1);
+    }
+    var sx=spawn.x*cell, sy=spawn.y*cell;
+    ctx.fillStyle='rgba(52,211,153,.9)'; ctx.fillRect(sx,sy,cell,cell);
+    ctx.fillStyle='#04241a'; ctx.font='bold '+Math.max(10,cell*0.6)+'px Kanit,sans-serif';
+    ctx.textAlign='center'; ctx.textBaseline='middle'; ctx.fillText('🚩',sx+cell/2,sy+cell/2);
+    var np=0,nd=0; for(var a=0;a<H;a++) for(var b=0;b<W;b++){ if(path[a][b])np++; if(dome[a][b])nd++; }
+    statEl.innerHTML='ฉาก: <b>'+(map&&map.name||curId)+'</b><br>เส้นทาง <b>'+np+'</b> ช่อง · จุดคำถาม <b>'+nd+'</b> · เกิด ('+spawn.x+','+spawn.y+')';
+  }
+
+  function tileAt(ev){
+    var rect=cv.getBoundingClientRect();
+    var px=(ev.clientX!=null?ev.clientX:(ev.touches&&ev.touches[0].clientX))-rect.left;
+    var py=(ev.clientY!=null?ev.clientY:(ev.touches&&ev.touches[0].clientY))-rect.top;
+    var cell=cv._cell; return { x:Math.floor(px/cell), y:Math.floor(py/cell) };
+  }
+  function applyAt(tx,ty){
+    if(tx<0||ty<0||tx>=W||ty>=H) return;
+    if(tool==='spawn'){ spawn={x:tx,y:ty}; return; }
+    var b=brush, half=Math.floor(b/2);
+    for(var dy=0;dy<b;dy++) for(var dx=0;dx<b;dx++){
+      var x=tx+dx-half, y=ty+dy-half; if(x<0||y<0||x>=W||y>=H) continue;
+      if(tool==='path') path[y][x]=paintVal;
+      else if(tool==='dome') dome[y][x]=paintVal;
+      else if(tool==='erase'){ path[y][x]=0; dome[y][x]=0; }
+    }
+  }
+  function onDown(ev){
+    ev.preventDefault(); var t=tileAt(ev);
+    if(tool==='path') paintVal=(path[t.y]&&path[t.y][t.x])?0:1;
+    else if(tool==='dome') paintVal=(dome[t.y]&&dome[t.y][t.x])?0:1;
+    else paintVal=1;
+    painting=true; applyAt(t.x,t.y); draw();
+  }
+  function onMove(ev){ if(!painting) return; ev.preventDefault(); var t=tileAt(ev); applyAt(t.x,t.y); draw(); }
+  function onUp(){ painting=false; }
+  cv.addEventListener('mousedown',onDown);
+  window.addEventListener('mousemove',onMove);
+  window.addEventListener('mouseup',onUp);
+  cv.addEventListener('touchstart',onDown,{passive:false});
+  cv.addEventListener('touchmove',onMove,{passive:false});
+  window.addEventListener('touchend',onUp);
+  window.addEventListener('resize',layout);
+
+  document.getElementById('btn-clear-path').addEventListener('click',function(){ path=emptyGrid(W,H); draw(); toast('ล้างเส้นทางแล้ว',true); });
+  document.getElementById('btn-clear-dome').addEventListener('click',function(){ dome=emptyGrid(W,H); draw(); toast('ล้างจุดคำถามแล้ว',true); });
+
+  document.getElementById('btn-save').addEventListener('click',function(){
+    var btn=this; btn.disabled=true; toast('กำลังบันทึก…');
+    fetch(BASE+'/api/maps/'+encodeURIComponent(curId),{method:'PUT',headers:{'Content-Type':'application/json'},
+      body:JSON.stringify({ quizBattlePathArea:path, quizBattleDomeArea:dome, spawn:spawn, width:W, height:H })})
+      .then(function(r){return r.json();}).then(function(res){ btn.disabled=false;
+        if(res&&res.ok) toast('บันทึก "'+curId+'" สำเร็จ ✓',true); else toast((res&&res.error)||'บันทึกไม่สำเร็จ',false);
+      }).catch(function(e){ btn.disabled=false; toast('บันทึกไม่สำเร็จ: '+e.message,false); });
+  });
+  document.getElementById('btn-test').addEventListener('click',function(){
+    toast('กำลังเปิดห้องทดสอบ…');
+    fetch(BASE+'/api/spaces',{method:'POST',headers:{'Content-Type':'application/json'},
+      body:JSON.stringify({ mapId:curId, name:'TEST '+curId+' '+Date.now(), maxPlayers:50 })})
+      .then(function(r){return r.json();}).then(function(res){
+        if(res&&res.ok){ window.open(BASE+'/play.html?space='+encodeURIComponent(res.spaceId)+'&map='+encodeURIComponent(curId)+'&nick=Tester','_blank'); toast('เปิดแท็บทดสอบแล้ว',true); }
+        else toast((res&&res.error)||'เปิดทดสอบไม่ได้',false);
+      }).catch(function(e){ toast(e.message,false); });
+  });
+
+  load();
+})();
+</script>
+</body>
+</html>
diff --git a/www/html/Game/public/qb-editor.html.bak-20260605-115042 b/www/html/Game/public/qb-editor.html.bak-20260605-115042
new file mode 100644
index 0000000..ef2eec2
--- /dev/null
+++ b/www/html/Game/public/qb-editor.html.bak-20260605-115042
@@ -0,0 +1,270 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>ตั้งค่าฉาก Quiz Battle — ง่าย ๆ</title>
+<style>
+  * { box-sizing: border-box; }
+  :root { --bg:#0b1024; --panel:#141a32; --line:#2a3357; --txt:#eef2ff; --accent:#22d3ee; --path:#7aa2f7; --dome:#ffd166; }
+  html,body { margin:0; height:100%; }
+  body { background:var(--bg); color:var(--txt); font-family:'Kanit','Sarabun','Segoe UI',system-ui,sans-serif; display:flex; height:100vh; overflow:hidden; }
+  /* ซ้าย = แผง เครื่องมือ */
+  .side { width:300px; min-width:300px; background:var(--panel); border-right:1px solid var(--line); display:flex; flex-direction:column; gap:14px; padding:16px; overflow-y:auto; }
+  .side h1 { font-size:18px; margin:0 0 2px; }
+  .side .hint { font-size:12.5px; color:#a9b4dd; line-height:1.5; }
+  .field { display:flex; flex-direction:column; gap:6px; }
+  .field label { font-size:12px; color:#a9b4dd; font-weight:600; }
+  select, button { font:inherit; }
+  select { background:#0d1430; color:var(--txt); border:1px solid var(--line); border-radius:10px; padding:10px 12px; font-weight:600; }
+  .tools { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
+  .tool { display:flex; flex-direction:column; align-items:center; gap:4px; padding:12px 6px; border:2px solid var(--line); background:#0d1430; color:var(--txt); border-radius:12px; cursor:pointer; font-weight:600; font-size:13px; transition:.12s; }
+  .tool .ic { font-size:22px; line-height:1; }
+  .tool:hover { border-color:#3b4570; filter:brightness(1.1); }
+  .tool.active { border-color:var(--accent); background:rgba(34,211,238,.14); box-shadow:0 0 0 1px var(--accent) inset; }
+  .row { display:flex; gap:8px; }
+  .row > * { flex:1; }
+  .btn { border:none; border-radius:10px; padding:11px 12px; font-weight:700; cursor:pointer; color:#04121f; background:linear-gradient(180deg,#67e8f9,#22d3ee); }
+  .btn.sec { background:#1e2747; color:#eef2ff; border:1px solid var(--line); }
+  .btn.warn { background:rgba(239,68,68,.18); color:#fecaca; border:1px solid rgba(239,68,68,.4); }
+  .btn:disabled { opacity:.5; cursor:default; }
+  .stat { font-size:12.5px; color:#cfd7ff; background:#0d1430; border:1px solid var(--line); border-radius:10px; padding:10px 12px; line-height:1.7; }
+  .stat b { color:var(--accent); }
+  .legend { font-size:12px; color:#9fb0e6; line-height:1.6; }
+  .legend .sw { display:inline-block; width:12px; height:12px; border-radius:3px; vertical-align:-1px; margin-right:5px; }
+  .toast { font-size:13px; font-weight:600; min-height:18px; }
+  .toast.ok { color:#6ee7b7; } .toast.err { color:#fca5a5; }
+  /* ขวา = ผืนผ้าใบฉาก */
+  .stage { flex:1; display:flex; align-items:center; justify-content:center; overflow:auto; padding:18px; background:radial-gradient(ellipse at 50% 0,rgba(40,60,120,.25),transparent 60%); }
+  .canvas-wrap { position:relative; box-shadow:0 10px 40px rgba(0,0,0,.5); border-radius:8px; overflow:hidden; }
+  canvas { display:block; cursor:crosshair; touch-action:none; }
+  .brushlabel { position:fixed; bottom:14px; right:18px; background:rgba(8,12,28,.85); border:1px solid var(--line); padding:8px 14px; border-radius:999px; font-size:13px; font-weight:600; pointer-events:none; }
+</style>
+</head>
+<body>
+  <div class="side">
+    <div>
+      <h1>🗺️ ตั้งค่าฉาก Quiz Battle</h1>
+      <div class="hint">เลือกห้อง → เลือกเครื่องมือ → <b>คลิกหรือลากบนภาพ</b> เพื่อวาดเส้นทาง/วางจุดคำถาม แล้วกด <b>บันทึก</b></div>
+    </div>
+
+    <div class="field">
+      <label>เลือกห้อง (หัวข้อ)</label>
+      <select id="room-select"></select>
+    </div>
+
+    <div class="field">
+      <label>เครื่องมือ</label>
+      <div class="tools" id="tools">
+        <button class="tool active" data-tool="path"><span class="ic">🛣️</span>เส้นทางเดิน</button>
+        <button class="tool" data-tool="dome"><span class="ic">❓</span>จุดคำถาม</button>
+        <button class="tool" data-tool="spawn"><span class="ic">🚩</span>จุดเกิด</button>
+        <button class="tool" data-tool="erase"><span class="ic">🧽</span>ยางลบ</button>
+      </div>
+    </div>
+
+    <div class="field">
+      <label>ขนาดพู่กัน (วาดทีละกี่ช่อง)</label>
+      <select id="brush"><option value="1">1×1</option><option value="2" selected>2×2</option><option value="3">3×3</option></select>
+    </div>
+
+    <div class="stat" id="stat">—</div>
+
+    <div class="legend">
+      <span class="sw" style="background:rgba(122,162,247,.6)"></span>เส้นทางเดิน &nbsp;
+      <span class="sw" style="background:#ffd166"></span>จุดคำถาม &nbsp;
+      <span class="sw" style="background:#34d399"></span>จุดเกิด<br>
+      ถ้าไม่วาดเส้นทางเลย = เดินได้อิสระทั้งฉาก
+    </div>
+
+    <div class="row">
+      <button class="btn sec" id="btn-clear-path">ล้างเส้นทาง</button>
+      <button class="btn sec" id="btn-clear-dome">ล้างจุดคำถาม</button>
+    </div>
+    <button class="btn" id="btn-save">💾 บันทึกฉากนี้</button>
+    <button class="btn sec" id="btn-test">▶ เปิดทดสอบเล่น (แท็บใหม่)</button>
+    <div class="toast" id="toast"></div>
+    <div class="hint">เคล็ดลับ: วางจุดคำถามให้ตรงแท่นเรืองแสงในภาพ และลากเส้นทางเชื่อมจากจุดเกิดด้านบนลงไปถึงปลายล่าง</div>
+  </div>
+
+  <div class="stage">
+    <div class="canvas-wrap" id="wrap">
+      <canvas id="cv"></canvas>
+    </div>
+  </div>
+  <div class="brushlabel" id="brushlabel">เครื่องมือ: เส้นทางเดิน</div>
+
+<script>
+(function(){
+  'use strict';
+  var BASE = '/Game';
+  var ROOMS = [
+    'กฎหมายใกล้ตัว','กฎหมายสิทธิ์พื้นฐาน','กฎหมายจราจร','คดีเกี่ยวกับทรัพย์','คดีหมิ่นประมาท',
+    'คดีทางเพศ','คดีอาชญากรรม','อาชญากรรมออนไลน์','กระบวนการยุติธรรม','งานบริการกระทรวงยุติธรรม'
+  ];
+  var qs = new URLSearchParams(location.search);
+  var curId = qs.get('id') || 'qbroom1';
+
+  var map = null, W = 24, H = 49;
+  var path = [], dome = [], spawn = { x: 11, y: 2 };
+  var bgImg = new Image();
+  var tool = 'path', brush = 2, painting = false, paintVal = 1;
+
+  var cv = document.getElementById('cv'), ctx = cv.getContext('2d');
+  var wrap = document.getElementById('wrap');
+  var toastEl = document.getElementById('toast');
+  var statEl = document.getElementById('stat');
+  var brushLabel = document.getElementById('brushlabel');
+
+  function toast(msg, ok){ toastEl.textContent = msg||''; toastEl.className = 'toast ' + (ok===false?'err':ok===true?'ok':''); }
+  function emptyGrid(w,h){ var a=[]; for(var y=0;y<h;y++){var r=[];for(var x=0;x<w;x++)r.push(0);a.push(r);} return a; }
+  function norm(src,w,h){ var a=emptyGrid(w,h); if(Array.isArray(src)){for(var y=0;y<h;y++){var row=src[y]||[];for(var x=0;x<w;x++)a[y][x]=row[x]===1?1:0;}} return a; }
+
+  // room dropdown
+  var sel = document.getElementById('room-select');
+  for (var i=1;i<=10;i++){ var o=document.createElement('option'); o.value='qbroom'+i; o.textContent='ห้อง '+i+' — '+ROOMS[i-1]; sel.appendChild(o); }
+  sel.value = curId;
+  sel.addEventListener('change', function(){ location.search = '?id=' + encodeURIComponent(sel.value); });
+
+  // tools
+  Array.prototype.forEach.call(document.querySelectorAll('.tool'), function(b){
+    b.addEventListener('click', function(){
+      document.querySelectorAll('.tool').forEach(function(x){x.classList.remove('active');});
+      b.classList.add('active'); tool = b.getAttribute('data-tool');
+      brushLabel.textContent = 'เครื่องมือ: ' + b.textContent.trim();
+    });
+  });
+  document.getElementById('brush').addEventListener('change', function(e){ brush = parseInt(e.target.value,10)||1; });
+
+  function load(){
+    toast('กำลังโหลดฉาก…');
+    fetch(BASE + '/api/maps/' + encodeURIComponent(curId) + '?_=' + Date.now(), { cache:'no-store' })
+      .then(function(r){ if(!r.ok) throw new Error('โหลดฉากไม่ได้ ('+r.status+')'); return r.json(); })
+      .then(function(m){
+        map = m; W = m.width||24; H = m.height||49;
+        path = norm(m.quizBattlePathArea, W, H);
+        dome = norm(m.quizBattleDomeArea, W, H);
+        spawn = (m.spawn && typeof m.spawn.x==='number') ? { x:m.spawn.x, y:m.spawn.y } : { x:11, y:2 };
+        if (m.backgroundImage){ bgImg = new Image(); bgImg.onload = layout; bgImg.onerror = layout; bgImg.src = m.backgroundImage + (m.backgroundImage.indexOf('?')<0?('?_='+Date.now()):''); }
+        else { layout(); }
+        toast('โหลดฉาก "' + (m.name||curId) + '" แล้ว', true);
+        layout();
+      })
+      .catch(function(e){ toast(e.message, false); });
+  }
+
+  function layout(){
+    // ผ้าใบสูงเท่าพื้นที่ว่าง คงสัดส่วน W:H
+    var maxH = Math.max(300, window.innerHeight - 36);
+    var maxW = Math.max(200, window.innerWidth - 300 - 56);
+    var cell = Math.min(maxH / H, maxW / W);
+    cell = Math.max(6, Math.floor(cell));
+    cv.width = W * cell; cv.height = H * cell;
+    cv._cell = cell;
+    draw();
+  }
+
+  function draw(){
+    var cell = cv._cell, w = cv.width, h = cv.height;
+    ctx.clearRect(0,0,w,h);
+    if (bgImg && bgImg.complete && bgImg.naturalWidth){ ctx.drawImage(bgImg, 0,0, w,h); }
+    else { ctx.fillStyle='#10162e'; ctx.fillRect(0,0,w,h); }
+    // grid
+    ctx.strokeStyle='rgba(255,255,255,.06)'; ctx.lineWidth=1;
+    for(var x=0;x<=W;x++){ ctx.beginPath(); ctx.moveTo(x*cell+.5,0); ctx.lineTo(x*cell+.5,h); ctx.stroke(); }
+    for(var y=0;y<=H;y++){ ctx.beginPath(); ctx.moveTo(0,y*cell+.5); ctx.lineTo(w,y*cell+.5); ctx.stroke(); }
+    // path
+    ctx.fillStyle='rgba(122,162,247,.42)';
+    for(var py=0;py<H;py++) for(var px=0;px<W;px++) if(path[py][px]) ctx.fillRect(px*cell, py*cell, cell, cell);
+    // domes (numbered stations) — เรียงเลขตามลำดับ comp อย่างง่าย (ไล่จากบนลงล่าง ซ้ายไปขวา)
+    var num=0;
+    for(var dy=0;dy<H;dy++) for(var dx=0;dx<W;dx++) if(dome[dy][dx]){
+      num++;
+      var cx=dx*cell+cell/2, cy=dy*cell+cell/2, r=Math.max(8,cell*0.62);
+      ctx.beginPath(); ctx.arc(cx,cy,r,0,Math.PI*2);
+      ctx.fillStyle='rgba(255,209,102,.92)'; ctx.fill();
+      ctx.lineWidth=2; ctx.strokeStyle='#7a5a10'; ctx.stroke();
+      ctx.fillStyle='#3a2c00'; ctx.font='bold '+Math.max(10,cell*0.7)+'px Kanit,sans-serif';
+      ctx.textAlign='center'; ctx.textBaseline='middle'; ctx.fillText(String(num), cx, cy+1);
+    }
+    // spawn
+    var sx=spawn.x*cell, sy=spawn.y*cell;
+    ctx.fillStyle='rgba(52,211,153,.9)'; ctx.fillRect(sx, sy, cell, cell);
+    ctx.fillStyle='#04241a'; ctx.font='bold '+Math.max(10,cell*0.6)+'px Kanit,sans-serif';
+    ctx.textAlign='center'; ctx.textBaseline='middle'; ctx.fillText('🚩', sx+cell/2, sy+cell/2);
+    // stats
+    var np=0, nd=0;
+    for(var i=0;i<H;i++) for(var j=0;j<W;j++){ if(path[i][j])np++; if(dome[i][j])nd++; }
+    statEl.innerHTML = 'ฉาก: <b>'+(map&&map.name||curId)+'</b><br>เส้นทาง: <b>'+np+'</b> ช่อง · จุดคำถาม: <b>'+nd+'</b> จุด<br>จุดเกิด: ('+spawn.x+','+spawn.y+')';
+  }
+
+  function tileAt(ev){
+    var rect = cv.getBoundingClientRect();
+    var px = (ev.clientX!=null?ev.clientX:(ev.touches&&ev.touches[0].clientX)) - rect.left;
+    var py = (ev.clientY!=null?ev.clientY:(ev.touches&&ev.touches[0].clientY)) - rect.top;
+    var cell = cv._cell;
+    return { x: Math.floor(px/cell), y: Math.floor(py/cell) };
+  }
+
+  function applyAt(tx,ty){
+    if(tx<0||ty<0||tx>=W||ty>=H) return;
+    if(tool==='spawn'){ spawn={x:tx,y:ty}; return; }
+    var b = (tool==='spawn')?1:brush, half=Math.floor(b/2);
+    for(var dy=0; dy<b; dy++) for(var dx=0; dx<b; dx++){
+      var x=tx+dx-half, y=ty+dy-half;
+      if(x<0||y<0||x>=W||y>=H) continue;
+      if(tool==='path') path[y][x]=paintVal;
+      else if(tool==='dome') dome[y][x]=paintVal;
+      else if(tool==='erase'){ path[y][x]=0; dome[y][x]=0; }
+    }
+  }
+
+  function onDown(ev){
+    ev.preventDefault();
+    var t = tileAt(ev);
+    if(tool==='path') paintVal = path[t.y] && path[t.y][t.x] ? 0 : 1;       // คลิกซ้ำ = ลบ (toggle)
+    else if(tool==='dome') paintVal = dome[t.y] && dome[t.y][t.x] ? 0 : 1;
+    else paintVal = 1;
+    painting = true; applyAt(t.x,t.y); draw();
+  }
+  function onMove(ev){ if(!painting) return; ev.preventDefault(); var t=tileAt(ev); applyAt(t.x,t.y); draw(); }
+  function onUp(){ painting=false; }
+
+  cv.addEventListener('mousedown', onDown);
+  window.addEventListener('mousemove', onMove);
+  window.addEventListener('mouseup', onUp);
+  cv.addEventListener('touchstart', onDown, {passive:false});
+  cv.addEventListener('touchmove', onMove, {passive:false});
+  window.addEventListener('touchend', onUp);
+  window.addEventListener('resize', layout);
+
+  document.getElementById('btn-clear-path').addEventListener('click', function(){ path=emptyGrid(W,H); draw(); toast('ล้างเส้นทางแล้ว',true); });
+  document.getElementById('btn-clear-dome').addEventListener('click', function(){ dome=emptyGrid(W,H); draw(); toast('ล้างจุดคำถามแล้ว',true); });
+
+  document.getElementById('btn-save').addEventListener('click', function(){
+    var btn=this; btn.disabled=true; toast('กำลังบันทึก…');
+    fetch(BASE + '/api/maps/' + encodeURIComponent(curId), {
+      method:'PUT', headers:{'Content-Type':'application/json'},
+      body: JSON.stringify({ quizBattlePathArea: path, quizBattleDomeArea: dome, spawn: spawn, width: W, height: H })
+    }).then(function(r){ return r.json(); }).then(function(res){
+      btn.disabled=false;
+      if(res && res.ok) toast('บันทึกฉาก "'+curId+'" สำเร็จ ✓ (เข้าเล่นได้เลย)', true);
+      else toast((res&&res.error)||'บันทึกไม่สำเร็จ', false);
+    }).catch(function(e){ btn.disabled=false; toast('บันทึกไม่สำเร็จ: '+e.message, false); });
+  });
+
+  document.getElementById('btn-test').addEventListener('click', function(){
+    toast('กำลังเปิดห้องทดสอบ…');
+    fetch(BASE + '/api/spaces', { method:'POST', headers:{'Content-Type':'application/json'},
+      body: JSON.stringify({ mapId: curId, name: 'TEST '+curId+' '+Date.now(), maxPlayers: 50 }) })
+      .then(function(r){return r.json();}).then(function(res){
+        if(res&&res.ok){ window.open(BASE+'/play.html?space='+encodeURIComponent(res.spaceId)+'&map='+encodeURIComponent(curId)+'&nick=Tester','_blank'); toast('เปิดแท็บทดสอบแล้ว',true); }
+        else toast((res&&res.error)||'เปิดทดสอบไม่ได้',false);
+      }).catch(function(e){ toast(e.message,false); });
+  });
+
+  load();
+})();
+</script>
+</body>
+</html>
diff --git a/www/html/Game/server.js b/www/html/Game/server.js
index 61fe4f5..23e0017 100644
--- a/www/html/Game/server.js
+++ b/www/html/Game/server.js
@@ -4777,7 +4777,9 @@ const server = http.createServer((req, res) => {
           const spaceName = (d.name || '').trim() || (isPrivate ? 'ห้องส่วนตัว' : sid);
           let maxPlayers = parseInt(d.maxPlayers, 10);
           if (isNaN(maxPlayers) || maxPlayers < 1) maxPlayers = 10;
-          maxPlayers = Math.min(10, Math.max(1, maxPlayers));
+          /* Quiz Battle (ฉากเดินตอบ แบบ ZEP) รองรับได้ถึง 50 คน · โหมดอื่นคงเพดานเดิม 10 */
+          const mpCap = mapData.gameType === 'quiz_battle' ? 50 : 10;
+          maxPlayers = Math.min(mpCap, Math.max(1, maxPlayers));
           if (mapData.gameType === 'gauntlet' || mapData.gameType === 'space_shooter' || mapData.gameType === 'balloon_boss') maxPlayers = Math.min(maxPlayers, 6);
           const mapId = d.mapId ? String(d.mapId).trim() : null;
           const previewEditorTest = isPrivate && String(spaceName).toLowerCase() === 'preview';
@@ -5866,7 +5868,356 @@ function spaceAllowsQuizCarryLobbyRelaxed(space) {
     || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
 }
 
+/* ============================================================
+ * Quiz Battle (Kahoot/ZEP-style) — ห้องตอบคำถามพร้อมกัน รับได้สูงสุด 50 คน
+ * 10 ห้อง · auto-start (กด Start แล้วนับถอยหลังเริ่มเอง) · คำถามจาก battleQuizMcq
+ * แยกจากระบบ spaces (โลกเดิน) ใช้ io เดียวกัน · event ขึ้นต้น qb-*
+ * ============================================================ */
+const QB_ROOM_COUNT = 10;
+const QB_MAX_PLAYERS = 50;
+const QB_QUESTIONS_PER_ROUND = 10;     // จำนวนข้อต่อรอบ (สุ่มจาก pool battleQuizMcq)
+const QB_ANSWER_MS = 20000;            // เวลาตอบต่อข้อ
+const QB_REVEAL_MS = 4000;             // โชว์เฉลย + leaderboard ก่อนข้อต่อไป
+const QB_COUNTDOWN_MS = 5000;          // นับถอยหลังก่อนเริ่ม (auto-start)
+const QB_BASE_POINTS = 1000;           // คะแนนเต็มต่อข้อ (ตอบถูก + เร็วสุด)
+const QB_STREAK_BONUS = 100;           // โบนัสต่อ streak ตอบถูกติดกัน
+const QB_MIN_PLAYERS_TO_START = 1;     // ขั้นต่ำที่กด Start ได้
+const QB_END_LINGER_MS = 12000;        // โชว์อันดับจบเกมก่อนรีเซ็ตห้องกลับ lobby
+const QB_LOBBY_WATCH_ROOM = 'qb-lobby-watchers';
+
+const qbRooms = new Map(); // roomId -> room state
+
+function qbRoomId(n) { return 'qb-' + n; }
+
+function qbCreateRoom(n) {
+  return {
+    n,
+    id: qbRoomId(n),
+    status: 'lobby',          // lobby | countdown | question | reveal | ended
+    players: new Map(),        // socketId -> player
+    questions: [],
+    qIndex: -1,
+    qStartAt: 0,
+    qEndsAt: 0,
+    timers: [],
+  };
+}
+
+function qbGetRoom(n) {
+  const id = qbRoomId(n);
+  let r = qbRooms.get(id);
+  if (!r) { r = qbCreateRoom(n); qbRooms.set(id, r); }
+  return r;
+}
+
+function qbClearTimers(room) {
+  if (Array.isArray(room.timers)) room.timers.forEach((t) => clearTimeout(t));
+  room.timers = [];
+}
+
+function qbCountsSnapshot() {
+  const rooms = [];
+  for (let n = 1; n <= QB_ROOM_COUNT; n++) {
+    const r = qbRooms.get(qbRoomId(n));
+    rooms.push({ n, count: r ? r.players.size : 0, status: r ? r.status : 'lobby' });
+  }
+  return rooms;
+}
+
+function qbBroadcastCounts() {
+  const payload = { rooms: qbCountsSnapshot() };
+  io.to(QB_LOBBY_WATCH_ROOM).emit('qb-counts', payload);
+  for (let n = 1; n <= QB_ROOM_COUNT; n++) {
+    const r = qbRooms.get(qbRoomId(n));
+    if (r && r.players.size) io.to(r.id).emit('qb-counts', payload);
+  }
+}
+
+function qbPlayerList(room) {
+  return [...room.players.values()]
+    .map((p) => ({ id: p.id, name: p.name, score: p.score }))
+    .sort((a, b) => b.score - a.score);
+}
+
+function qbLeaderboard(room) {
+  return qbPlayerList(room).map((p, i) => ({ rank: i + 1, id: p.id, name: p.name, score: p.score }));
+}
+
+function qbEmitRoomState(room) {
+  io.to(room.id).emit('qb-room-state', {
+    n: room.n,
+    status: room.status,
+    max: QB_MAX_PLAYERS,
+    players: qbPlayerList(room),
+  });
+}
+
+function qbShuffle(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+/** หยิบคำถามจาก battleQuizMcq (อ่านสด) → สุ่ม → ตัด N ข้อ · คืน [] ถ้าไม่มีคำถาม */
+function qbPickQuestions() {
+  let pool = [];
+  try { pool = loadQuizSettings().battleQuizMcq || []; } catch (e) { pool = []; }
+  pool = pool.filter((q) => q && q.text && Array.isArray(q.choices) && q.choices.length >= 2);
+  if (!pool.length) return [];
+  return qbShuffle(pool).slice(0, QB_QUESTIONS_PER_ROUND);
+}
+
+function qbResetRoom(room) {
+  qbClearTimers(room);
+  room.status = 'lobby';
+  room.questions = [];
+  room.qIndex = -1;
+  for (const p of room.players.values()) {
+    p.score = 0;
+    p.streak = 0;
+    p.answeredIndex = -1;
+  }
+  io.to(room.id).emit('qb-reset', {});
+  qbEmitRoomState(room);
+  qbBroadcastCounts();
+}
+
+function qbStartCountdown(room) {
+  if (room.status !== 'lobby') return { ok: false, error: 'เกมเริ่มไปแล้ว' };
+  if (room.players.size < QB_MIN_PLAYERS_TO_START) return { ok: false, error: 'ผู้เล่นไม่พอ' };
+  const questions = qbPickQuestions();
+  if (!questions.length) return { ok: false, error: 'ยังไม่มีคำถามในคลัง (เพิ่มที่หน้า Admin)' };
+  qbClearTimers(room);
+  room.questions = questions;
+  room.qIndex = -1;
+  room.status = 'countdown';
+  for (const p of room.players.values()) { p.score = 0; p.streak = 0; p.answeredIndex = -1; }
+  const endsAt = Date.now() + QB_COUNTDOWN_MS;
+  io.to(room.id).emit('qb-countdown', { endsAt, ms: QB_COUNTDOWN_MS, totalQuestions: questions.length });
+  qbBroadcastCounts();
+  room.timers.push(setTimeout(() => qbNextQuestion(room), QB_COUNTDOWN_MS));
+  return { ok: true };
+}
+
+function qbNextQuestion(room) {
+  qbClearTimers(room);
+  room.qIndex += 1;
+  if (room.qIndex >= room.questions.length) { qbEndGame(room); return; }
+  const q = room.questions[room.qIndex];
+  room.status = 'question';
+  room.qStartAt = Date.now();
+  room.qEndsAt = room.qStartAt + QB_ANSWER_MS;
+  for (const p of room.players.values()) { p.answeredIndex = -1; p.answeredAt = 0; p.lastDelta = 0; p.lastCorrect = false; }
+  io.to(room.id).emit('qb-question', {
+    index: room.qIndex,
+    total: room.questions.length,
+    text: q.text,
+    choices: q.choices,
+    endsAt: room.qEndsAt,
+    durationMs: QB_ANSWER_MS,
+  });
+  io.to(room.id).emit('qb-answered-count', { answered: 0, total: room.players.size });
+  room.timers.push(setTimeout(() => qbReveal(room), QB_ANSWER_MS));
+}
+
+function qbAllAnswered(room) {
+  for (const p of room.players.values()) { if (p.answeredIndex < 0) return false; }
+  return room.players.size > 0;
+}
+
+function qbReveal(room) {
+  qbClearTimers(room);
+  if (room.status !== 'question') return;
+  room.status = 'reveal';
+  const q = room.questions[room.qIndex];
+  const correctIndex = q.correctIndex;
+  const results = [...room.players.values()].map((p) => ({
+    id: p.id, name: p.name, correct: !!p.lastCorrect, delta: p.lastDelta || 0, score: p.score, choice: p.answeredIndex,
+  }));
+  const isLast = room.qIndex >= room.questions.length - 1;
+  io.to(room.id).emit('qb-reveal', {
+    index: room.qIndex,
+    correctIndex,
+    results,
+    leaderboard: qbLeaderboard(room),
+    isLast,
+    nextInMs: QB_REVEAL_MS,
+  });
+  room.timers.push(setTimeout(() => qbNextQuestion(room), QB_REVEAL_MS));
+}
+
+function qbEndGame(room) {
+  qbClearTimers(room);
+  room.status = 'ended';
+  io.to(room.id).emit('qb-ended', { leaderboard: qbLeaderboard(room), lingerMs: QB_END_LINGER_MS });
+  qbBroadcastCounts();
+  room.timers.push(setTimeout(() => qbResetRoom(room), QB_END_LINGER_MS));
+}
+
+/** ให้คะแนนแบบ Kahoot: ตอบถูก = ฐาน × (0.5 + 0.5×เศษเวลาที่เหลือ) + โบนัส streak */
+function qbScoreAnswer(room, p, choiceIndex) {
+  const q = room.questions[room.qIndex];
+  const now = Date.now();
+  p.answeredIndex = choiceIndex;
+  p.answeredAt = now;
+  const correct = Number(choiceIndex) === Number(q.correctIndex);
+  p.lastCorrect = correct;
+  if (correct) {
+    const remain = Math.max(0, room.qEndsAt - now);
+    const frac = QB_ANSWER_MS > 0 ? remain / QB_ANSWER_MS : 0;
+    p.streak = (p.streak || 0) + 1;
+    const base = Math.round(QB_BASE_POINTS * (0.5 + 0.5 * frac));
+    const bonus = (p.streak - 1) * QB_STREAK_BONUS;
+    p.lastDelta = base + bonus;
+    p.score += p.lastDelta;
+  } else {
+    p.streak = 0;
+    p.lastDelta = 0;
+  }
+  return p.lastDelta;
+}
+
+function qbLeaveRoom(socket) {
+  const roomId = socket.data.qbRoom;
+  if (!roomId) return;
+  const room = qbRooms.get(roomId);
+  socket.data.qbRoom = null;
+  socket.leave(roomId);
+  if (!room) return;
+  if (room.players.delete(socket.id)) {
+    if (room.players.size === 0) {
+      qbClearTimers(room);
+      room.status = 'lobby';
+      room.questions = [];
+      room.qIndex = -1;
+    } else {
+      qbEmitRoomState(room);
+      if (room.status === 'question' && qbAllAnswered(room)) qbReveal(room);
+    }
+    qbBroadcastCounts();
+  }
+}
+
+/* ============================================================
+ * Quiz Battle (ฉากเดินตอบ แบบ ZEP) — sync คะแนน/อันดับข้ามผู้เล่นแบบ authoritative
+ * เก็บบน space: qbwSolved = Map(socketId -> Set(compId ที่ตอบถูก)) · score = จำนวนโดมที่ปลด
+ * event: quizbattle-hello (ขอคะแนนปัจจุบัน) · quizbattle-solve {compId} · server ส่งกลับ quizbattle-scores
+ * ============================================================ */
+function qbwScoresSnapshot(space) {
+  const scores = {};
+  if (space && space.qbwSolved) {
+    for (const [pid, set] of space.qbwSolved) scores[pid] = set ? set.size : 0;
+  }
+  if (space && space.peers) {
+    for (const id of space.peers.keys()) if (scores[id] == null) scores[id] = 0;
+  }
+  return scores;
+}
+
+function qbwBroadcastScores(sid, space) {
+  if (!sid || !space) return;
+  io.to(sid).emit('quizbattle-scores', { scores: qbwScoresSnapshot(space) });
+}
+
 io.on('connection', (socket) => {
+  /* ===== Quiz Battle ฉากเดินตอบ (ZEP) — sync คะแนน ===== */
+  socket.on('quizbattle-hello', (cb) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (typeof cb === 'function') cb({ ok: !!space, scores: space ? qbwScoresSnapshot(space) : {} });
+  });
+
+  socket.on('quizbattle-solve', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'quiz_battle') return reply({ ok: false });
+    const compId = parseInt(data && data.compId, 10);
+    if (!(compId > 0)) return reply({ ok: false });
+    if (!space.qbwSolved) space.qbwSolved = new Map();
+    let set = space.qbwSolved.get(socket.id);
+    if (!set) { set = new Set(); space.qbwSolved.set(socket.id, set); }
+    set.add(compId);
+    qbwBroadcastScores(sid, space);
+    reply({ ok: true, solved: set.size });
+  });
+
+  /* ===== Quiz Battle (Kahoot-style 50 คน) ===== */
+  socket.on('qb-watch-counts', (cb) => {
+    socket.join(QB_LOBBY_WATCH_ROOM);
+    if (typeof cb === 'function') cb({ ok: true, rooms: qbCountsSnapshot() });
+  });
+
+  socket.on('qb-join', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const n = parseInt(data && data.room, 10);
+    if (!(n >= 1 && n <= QB_ROOM_COUNT)) return reply({ ok: false, error: 'ห้องไม่ถูกต้อง' });
+    const room = qbGetRoom(n);
+    if (socket.data.qbRoom && socket.data.qbRoom !== room.id) qbLeaveRoom(socket);
+    if (!room.players.has(socket.id) && room.players.size >= QB_MAX_PLAYERS) {
+      return reply({ ok: false, error: 'ห้องเต็ม (50 คน)' });
+    }
+    const name = String((data && data.name) || 'ผู้เล่น').trim().slice(0, 24) || 'ผู้เล่น';
+    const characterId = String((data && data.characterId) || '').trim().slice(0, 64);
+    let p = room.players.get(socket.id);
+    if (!p) {
+      p = { id: socket.id, name, characterId, score: 0, streak: 0, answeredIndex: -1, answeredAt: 0, lastDelta: 0, lastCorrect: false };
+      room.players.set(socket.id, p);
+    } else {
+      p.name = name; p.characterId = characterId;
+    }
+    socket.data.qbRoom = room.id;
+    socket.join(room.id);
+    socket.leave(QB_LOBBY_WATCH_ROOM);
+    qbEmitRoomState(room);
+    qbBroadcastCounts();
+    // ส่งสถานะปัจจุบันให้คนที่เพิ่งเข้า (เผื่อเกมกำลังเล่นอยู่)
+    const snapshot = { n: room.n, status: room.status, max: QB_MAX_PLAYERS };
+    if (room.status === 'question') {
+      const q = room.questions[room.qIndex];
+      snapshot.question = { index: room.qIndex, total: room.questions.length, text: q.text, choices: q.choices, endsAt: room.qEndsAt, durationMs: QB_ANSWER_MS };
+    } else if (room.status === 'countdown') {
+      snapshot.totalQuestions = room.questions.length;
+    }
+    reply({ ok: true, ...snapshot, players: qbPlayerList(room) });
+  });
+
+  socket.on('qb-leave', (cb) => {
+    qbLeaveRoom(socket);
+    if (typeof cb === 'function') cb({ ok: true });
+  });
+
+  socket.on('qb-start', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const roomId = socket.data.qbRoom;
+    const room = roomId ? qbRooms.get(roomId) : null;
+    if (!room || !room.players.has(socket.id)) return reply({ ok: false, error: 'ยังไม่ได้เข้าห้อง' });
+    reply(qbStartCountdown(room));
+  });
+
+  socket.on('qb-answer', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const roomId = socket.data.qbRoom;
+    const room = roomId ? qbRooms.get(roomId) : null;
+    if (!room || room.status !== 'question') return reply({ ok: false });
+    const p = room.players.get(socket.id);
+    if (!p || p.answeredIndex >= 0) return reply({ ok: false, already: true });
+    const q = room.questions[room.qIndex];
+    const ci = parseInt(data && data.choiceIndex, 10);
+    if (!(ci >= 0 && ci < q.choices.length)) return reply({ ok: false });
+    const delta = qbScoreAnswer(room, p, ci);
+    let answered = 0;
+    for (const pp of room.players.values()) if (pp.answeredIndex >= 0) answered++;
+    io.to(room.id).emit('qb-answered-count', { answered, total: room.players.size });
+    reply({ ok: true, accepted: true });
+    if (qbAllAnswered(room)) qbReveal(room);
+  });
+
   socket.on('join-space', ({ spaceId, nickname, characterId, playMapId, desiredLobbyColorThemeIndex, desiredLobbySkinToneIndex }, cb) => {
     const space = spaces.get(spaceId);
     if (!space || !space.mapData) return cb && cb({ ok: false, error: 'ไม่พบห้อง' });
@@ -6718,6 +7069,7 @@ io.on('connection', (socket) => {
   });
 
   socket.on('disconnect', () => {
+    qbLeaveRoom(socket); // Quiz Battle cleanup (รันก่อนเสมอ แม้ไม่ได้อยู่ใน space)
     let sid = socket.data.spaceId;
     let space = sid ? spaces.get(sid) : null;
     if (!space || !space.peers.has(socket.id)) {
@@ -6743,6 +7095,7 @@ io.on('connection', (socket) => {
         io.to(sid).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
       }
     }
+    if (space.qbwSolved) space.qbwSolved.delete(socket.id); // Quiz Battle (ฉากเดิน) — เอาคะแนนคนออกแล้ว sync ใหม่ด้านล่าง
     space.peers.delete(socket.id);
     if (space.peers.size === 0) {
       stopGauntletTicker(space);
@@ -6765,6 +7118,7 @@ io.on('connection', (socket) => {
         }
       }
       io.to(sid).emit('user-left', { id: socket.id });
+      if (space.qbwSolved) qbwBroadcastScores(sid, space); // Quiz Battle ฉากเดิน — อัปเดตอันดับหลังมีคนออก
     }
   });
 
diff --git a/www/html/Game/server.js.bak-20260605-050107 b/www/html/Game/server.js.bak-20260605-050107
new file mode 100644
index 0000000..61fe4f5
--- /dev/null
+++ b/www/html/Game/server.js.bak-20260605-050107
@@ -0,0 +1,7144 @@
+const http = require('http');
+const path = require('path');
+const fs = require('fs');
+const crypto = require('crypto');
+const { Server } = require('socket.io');
+
+const PORT = parseInt(process.env.PORT, 10) || 3001;
+/** Windows dev: bind 127.0.0.1 (0.0.0.0 มัก EACCES ถ้าพอร์ตอยู่ใน excluded range ของ Hyper-V) */
+const HOST = process.env.HOST || process.env.GAME_HOST || '0.0.0.0';
+const BASE_PATH = '/Game';
+const AI_SETTINGS_PATH = path.join(__dirname, 'data', 'ai-settings.json');
+const ADMIN_PASSWORD = process.env.GAME_AI_ADMIN_PASSWORD || 'game-ai-admin';
+const adminTokens = new Set();
+/** Lobby หลังคดี — ไม่ลบออกจาก spaces ตอน prune รายการห้องว่าง */
+const POST_CASE_LOBBY_SPACE_ID = 'mn8nx46h';
+/** หลัง host เลือกผู้ต้องสงสัยแล้วกด «เริ่มสืบสวน» — ฉากควิซเดิม (fallback) */
+const SUSPECT_INVESTIGATION_QUIZ_MAP_ID = 'mng8a80o';
+/** 7 Minigame จาก Admin — สุ่ม 3 แบบไม่ซ้ำผูกการ์ดผู้ต้องสงสัย (ล็อกจนกว่าสร้างห้องใหม่) */
+/** ตรงแท็บ Admin Minigame 1–7 (ไม่รวม Quiz Battle / กบ frogger เก่า) */
+const DETECTIVE_MINIGAME_POOL = [
+  { key: 'quiz', mapId: 'mng8a80o', labelTh: 'Minigame-1 จริงหรือไม่' },
+  { key: 'gauntlet', mapId: 'mno9kb07', labelTh: 'Minigame-2 วิ่งหลบสิ่งกีดขวาง' },
+  { key: 'stack', mapId: 'mnn93hpi', labelTh: 'Minigame-3 Tower block' },
+  { key: 'quiz_carry', mapId: 'mnorwqx1', labelTh: 'Minigame-4 คำศัพท์ในกระบวนการยุติธรรม' },
+  { key: 'jump_survive', mapId: 'mnptfts2', labelTh: 'Minigame-5 กระโดดขึ้นแท่น' },
+  { key: 'space_shooter', mapId: 'mnpz6rkp', labelTh: 'Minigame-6 ยิงอุกาบาต Violent Crime' },
+  { key: 'balloon_boss', mapId: 'mnq1eml7', labelTh: 'Minigame-7 ยิง Mega Virus' },
+];
+const LOBBY_SLOT_TOTAL = 6;
+const LOBBY_THEME_COUNT = 8;
+const LOBBY_SKIN_COUNT = 3;
+
+/** ธีมสีเสื้อที่ถูกใช้แล้วในห้อง (ผู้เล่น + bot) */
+function getTakenLobbyThemeIndices(space, excludePeerId) {
+  const taken = new Set();
+  if (!space) return taken;
+  space.peers.forEach((p, id) => {
+    if (excludePeerId && id === excludePeerId) return;
+    const ti = parseInt(p.lobbyColorThemeIndex, 10);
+    if (ti >= 1 && ti <= LOBBY_THEME_COUNT) taken.add(ti);
+  });
+  const bots = space.lobbyBotThemeBySlot;
+  if (bots && typeof bots === 'object') {
+    Object.keys(bots).forEach((k) => {
+      const ti = parseInt(bots[k] && bots[k].themeIndex, 10);
+      if (ti >= 1 && ti <= LOBBY_THEME_COUNT) taken.add(ti);
+    });
+  }
+  return taken;
+}
+
+function pickFreeLobbyThemeIndex(space, excludePeerId) {
+  const taken = getTakenLobbyThemeIndices(space, excludePeerId);
+  for (let i = 1; i <= LOBBY_THEME_COUNT; i++) {
+    if (!taken.has(i)) return i;
+  }
+  const n = (space && space.peers ? space.peers.size : 0) + effectiveBotSlotCount(space);
+  return ((n - 1) % LOBBY_THEME_COUNT) + 1;
+}
+
+function pickLobbySkinIndexForSlot(slotIndex) {
+  const s = Number(slotIndex);
+  if (!Number.isFinite(s)) return 1;
+  return (Math.abs(Math.floor(s)) % LOBBY_SKIN_COUNT) + 1;
+}
+
+/** จัดสี bot ตามลำดับช่อง — ไม่ซ้ำกับผู้เล่น */
+function syncLobbyBotThemeSlots(space) {
+  if (!space) return [];
+  const botCount = effectiveBotSlotCount(space);
+  if (!space.lobbyBotThemeBySlot || typeof space.lobbyBotThemeBySlot !== 'object') {
+    space.lobbyBotThemeBySlot = {};
+  }
+  const taken = getTakenLobbyThemeIndices(space);
+  const out = [];
+  for (let i = 0; i < botCount; i++) {
+    let slot = space.lobbyBotThemeBySlot[i];
+    let themeIndex = parseInt(slot && slot.themeIndex, 10);
+    if (!(themeIndex >= 1 && themeIndex <= LOBBY_THEME_COUNT) || taken.has(themeIndex)) {
+      themeIndex = pickFreeLobbyThemeIndex(space);
+    }
+    taken.add(themeIndex);
+    const skinToneIndex = (() => {
+      const si = parseInt(slot && slot.skinToneIndex, 10);
+      return (si >= 1 && si <= LOBBY_SKIN_COUNT) ? si : pickLobbySkinIndexForSlot(i);
+    })();
+    space.lobbyBotThemeBySlot[i] = { themeIndex, skinToneIndex };
+    out.push({ themeIndex, skinToneIndex });
+  }
+  Object.keys(space.lobbyBotThemeBySlot).forEach((k) => {
+    if (parseInt(k, 10) >= botCount) delete space.lobbyBotThemeBySlot[k];
+  });
+  return out;
+}
+
+function emitLobbyTintSync(spaceId, space) {
+  const peersTint = [];
+  space.peers.forEach((p, id) => {
+    peersTint.push({
+      id,
+      lobbyColorThemeIndex: p.lobbyColorThemeIndex || null,
+      lobbySkinToneIndex: p.lobbySkinToneIndex || null,
+    });
+  });
+  io.to(spaceId).emit('lobby-tint-sync', {
+    peers: peersTint,
+    lobbyBotThemes: syncLobbyBotThemeSlots(space),
+  });
+}
+
+/** จำนวน Bot จาก Create Room — ถ้าไม่เคยบันทึก ใช้ 6 − maxPlayers (เช่น 3 คน → 3 Bot) */
+function effectiveBotSlotCount(space) {
+  let n = parseInt(space && space.botSlotCount, 10);
+  if (isNaN(n) || n < 0) n = 0;
+  const maxP = space && space.maxPlayers ? parseInt(space.maxPlayers, 10) : 0;
+  if (n === 0 && maxP > 0 && maxP < LOBBY_SLOT_TOTAL) {
+    n = LOBBY_SLOT_TOTAL - maxP;
+    if (space) space.botSlotCount = n;
+  }
+  return Math.min(LOBBY_SLOT_TOTAL, Math.max(0, n));
+}
+/** Stack Tower ภารกิจ — lobby READY / START เดียวกับ quiz mission (mng8a80o) */
+const STACK_TOWER_MISSION_MAP_ID = 'mnn93hpi';
+/** Jump Survival ภารกิจ Jumper — lobby READY / START เดียวกับ Stack Tower */
+const JUMP_SURVIVE_MISSION_MAP_ID = 'mnptfts2';
+/** ห้องสาธารณะที่สร้างแล้วไม่มีคนเข้าเกินนี้ → ลบออกจาก memory (Join Room ไม่โชว์ห้องผี) */
+const SPACE_EMPTY_TTL_MS = 45000;
+// Chat completion models from https://developers.openai.com/api/docs/models (Feb 2025)
+const AI_MODELS = [
+  'gpt-5.2', 'gpt-5.2-pro', 'gpt-5.1', 'gpt-5', 'gpt-5-pro', 'gpt-5-mini', 'gpt-5-nano',
+  'gpt-4.1', 'gpt-4.1-mini', 'gpt-4.1-nano',
+  'o3', 'o3-mini', 'o3-pro', 'o4-mini', 'o3-deep-research', 'o4-mini-deep-research',
+  'o1', 'o1-mini', 'o1-pro',
+  'gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-4',
+  'gpt-3.5-turbo',
+];
+
+function loadAiSettings() {
+  try {
+    if (fs.existsSync(AI_SETTINGS_PATH)) {
+      const raw = fs.readFileSync(AI_SETTINGS_PATH, 'utf8');
+      return JSON.parse(raw);
+    }
+  } catch (e) { console.error('loadAiSettings', e.message); }
+  return { openai_api_key: '', model: 'gpt-4o-mini', intent: '', rag_enabled: false, rag_context: '' };
+}
+
+function saveAiSettings(settings) {
+  try {
+    const dir = path.dirname(AI_SETTINGS_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    fs.writeFileSync(AI_SETTINGS_PATH, JSON.stringify(settings, null, 2), 'utf8');
+  } catch (e) { console.error('saveAiSettings', e.message); }
+}
+
+function getAdminToken(cookieHeader) {
+  if (!cookieHeader) return null;
+  const m = cookieHeader.match(/game_ai_admin=([^;\s]+)/);
+  return m && adminTokens.has(m[1]) ? m[1] : null;
+}
+
+const MAPS_DIR = path.join(__dirname, 'data', 'maps');
+const CHARACTERS_DIR = path.join(__dirname, 'data', 'characters');
+/** ชื่อเลเยอร์ตรงกับ character.html / อัปโหลด (ลำดับวาดใน client) */
+const CHAR_LAYER_MANIFEST_KEYS = ['shadow', 'bodyColor', 'bodyStroke', 'headColor', 'headStroke', 'hairColor', 'hairStroke', 'face'];
+const CHAR_MANIFEST_DIRS = ['up', 'down', 'left', 'right'];
+
+/** รายการไฟล์เลเยอร์ต่อทิศ/เฟรม — ให้หน้า character แก้ไขโหลด preview ได้ */
+function buildCharacterLayerManifest(id, files) {
+  if (!id || typeof id !== 'string') return { ok: false, error: 'bad id', byDir: {}, byDirIdle: {} };
+  const esc = id.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
+  const ext = /\.(png|jpg|jpeg|gif|webp)$/i;
+  const layerAlt = CHAR_LAYER_MANIFEST_KEYS.join('|');
+  const byDir = {};
+  for (const dir of CHAR_MANIFEST_DIRS) {
+    const multiRe = new RegExp('^' + esc + '_' + dir + '_(\\d+)_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const singleRe = new RegExp('^' + esc + '_' + dir + '_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const multiHits = files.filter((f) => multiRe.test(f));
+    if (multiHits.length) {
+      let maxFi = -1;
+      const perFrame = new Map();
+      multiHits.forEach((f) => {
+        const m = f.match(multiRe);
+        if (!m) return;
+        const fi = parseInt(m[1], 10);
+        if (!Number.isFinite(fi) || fi < 0 || fi > 200) return;
+        const layer = m[2];
+        if (fi > maxFi) maxFi = fi;
+        if (!perFrame.has(fi)) perFrame.set(fi, {});
+        perFrame.get(fi)[layer] = f;
+      });
+      const frames = [];
+      for (let i = 0; i <= maxFi; i++) frames.push(perFrame.get(i) || {});
+      byDir[dir] = { multi: true, frames };
+    } else {
+      const frame0 = {};
+      files.forEach((f) => {
+        if (!f.startsWith(id + '_' + dir + '_layer_') || !ext.test(f)) return;
+        const m = f.match(singleRe);
+        if (m) frame0[m[1]] = f;
+      });
+      if (Object.keys(frame0).length) byDir[dir] = { multi: false, frames: [frame0] };
+    }
+  }
+  const byDirIdle = {};
+  for (const dir of CHAR_MANIFEST_DIRS) {
+    const multiIdleRe = new RegExp('^' + esc + '_' + dir + '_idle_(\\d+)_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const singleIdleRe = new RegExp('^' + esc + '_' + dir + '_idle_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const multiIdleHits = files.filter((f) => multiIdleRe.test(f));
+    if (multiIdleHits.length) {
+      let maxFi = -1;
+      const perFrame = new Map();
+      multiIdleHits.forEach((f) => {
+        const m = f.match(multiIdleRe);
+        if (!m) return;
+        const fi = parseInt(m[1], 10);
+        if (!Number.isFinite(fi) || fi < 0 || fi > 200) return;
+        const layer = m[2];
+        if (fi > maxFi) maxFi = fi;
+        if (!perFrame.has(fi)) perFrame.set(fi, {});
+        perFrame.get(fi)[layer] = f;
+      });
+      const frames = [];
+      for (let i = 0; i <= maxFi; i++) frames.push(perFrame.get(i) || {});
+      byDirIdle[dir] = { multi: true, frames };
+    } else {
+      const frame0 = {};
+      files.forEach((f) => {
+        if (!f.startsWith(id + '_' + dir + '_idle_layer_') || !ext.test(f)) return;
+        const m = f.match(singleIdleRe);
+        if (m) frame0[m[1]] = f;
+      });
+      if (Object.keys(frame0).length) byDirIdle[dir] = { multi: false, frames: [frame0] };
+    }
+  }
+  return { ok: true, id, byDir, byDirIdle };
+}
+
+/** ต้องอยู่ใต้ public/img/ เพื่อให้ nginx (alias /Game/ → Game/public) เสิร์ฟ GET /Game/img/gauntlet-assets/* ได้ — เดิมเก็บใน data/ จะถูกคัดลอกมาครั้งแรก */
+const GAUNTLET_ASSETS_DIR = path.join(__dirname, 'public', 'img', 'gauntlet-assets');
+const GAUNTLET_ASSETS_DIR_LEGACY = path.join(__dirname, 'data', 'gauntlet-assets');
+const GAUNTLET_ASSETS_META_PATH = path.join(__dirname, 'data', 'gauntlet-assets-meta.json');
+/** ต้องอยู่ใต้ public/ เพื่อให้ nginx (alias /Game/ → Game/public) เสิร์ฟรูปได้ — อย่าใช้ data/ */
+const QUIZ_CARRY_PLAQUE_ASSETS_DIR = path.join(__dirname, 'public', 'img', 'quiz-carry-plaque-assets');
+const QUIZ_SETTINGS_PATH = path.join(__dirname, 'data', 'quiz-settings.json');
+/** ถ้า Admin (PHP) merge ลงไฟล์ใต้ docroot แต่ Node รันจากโฟลเดอร์อื่น ให้ตั้ง absolute path ที่นี่ — carry* / ธีมแผงจะอ่านทับจาก mirror ทุกครั้งที่ loadQuizSettings */
+const QUIZ_SETTINGS_MIRROR_PATH = process.env.GAME_QUIZ_SETTINGS_MIRROR_PATH
+  ? path.resolve(String(process.env.GAME_QUIZ_SETTINGS_MIRROR_PATH).trim())
+  : '';
+const GAME_TIMING_PATH = path.join(__dirname, 'data', 'game-timing.json');
+/** ช่องตัวเลือกบนกริด quiz_carry เก็บเลข 1..N (ไม่ใช่แค่ 0/1 เหมือน hub) */
+const QUIZ_CARRY_MAX_OPTION_SLOTS = 16;
+const maps = new Map();
+const defaultMap = () => ({
+  width: 20, height: 15, tileSize: 32, gameType: 'zep',
+  characterCells: 1, characterCellsW: 1, characterCellsH: 1,
+  /** กล่องตรวจทับโซน «ห้ามซ้อน» (ชิดเท้า+กลางแนวนอน เหมือนชนกำแพง) · 0 = เต็มความกว้าง/สูงตัว */
+  blockPlayerSeparationW: 0,
+  blockPlayerSeparationH: 0,
+  ground: [], objects: [], blockPlayer: [], interactive: [], startGameArea: [], spawnArea: [], spawn: { x: 1, y: 1 },
+  gridImageLibrary: [],
+  gridImageSprites: [],
+  gridImageCells: [],
+  quizTrueArea: [], quizFalseArea: [], quizQuestionArea: [], quizQuestions: [],
+  quizCarryHubArea: [], quizCarryOptionArea: [],
+  /** quiz_carry embed: โซนวาง UI นับ 3-2-1 (0/1) — ใช้เมื่อ carryEmbedCountdownAnchor === 'grid' */
+  carryEmbedCountdownArea: [],
+  /** Quiz Battle (MCQ โดม) — ช่องที่ 1 = จุดกด E เปิดคำถามจาก battleQuizMcq */
+  quizBattleDomeArea: [],
+  /** Quiz Battle — ถ้าวาดอย่างน้อย 1 ช่อง = จำกัดเดินเฉพาะเส้นทาง (เหมือนแผนที่อ้างอิง) · ไม่วาด = เดินอิสระเหมือนเดิม */
+  quizBattlePathArea: [],
+  stackReleaseArea: [], stackLandArea: [],
+  /** กระโดดให้รอด — แพลตฟอร์มในระบบ tile (ร่างสำหรับ side-view ภายหลัง) */
+  jumpSurvivePlatforms: [],
+  jumpSurvivePlatformArea: [],
+  /** กริดช่องละ 0 หรือ 1–3 = รูปแพลตฟอร์มจาก jumpSurvivePlatformTiles[index-1] */
+  jumpSurvivePlatformVariantArea: [],
+  jumpSurviveHazardArea: [],
+  jumpSurviveRisePxPerSec: 42,
+  jumpSurviveGravity: 3200,
+  /** 0 = ให้ไคลเอนต์ใช้ค่าเริ่มต้นกระโดดสูง; ตั้งเป็นพิกเซล/วิ (เช่น 980) เพื่อกำหนดเอง */
+  jumpSurviveJumpImpulse: 0,
+  jumpSurviveMovePxPerSec: 200,
+});
+
+/* ===== Special Quiz Sets (Level 1-5 × Case 1-3 = 15 ชุด) — คำถามรับการ์ดพิเศษ ใช้ได้หลายเกม ===== */
+const SPECIAL_QUIZ_LEVELS = [1, 2, 3, 4, 5];
+const SPECIAL_QUIZ_CASES = [1, 2, 3];
+const SPECIAL_QUIZ_CARD_RARITIES = ['common', 'rare', 'legendary'];
+const SPECIAL_CARD_ASSET_BASE = '/Game/img/special-cards/';
+
+function specialCardTxtFilename(id) {
+  return id === 7 ? 'card--7txt.png' : `card-${id}-txt.png`;
+}
+
+function specialCardImageUrl(id) {
+  return `${SPECIAL_CARD_ASSET_BASE}card-${id}.png`;
+}
+
+function specialCardTxtImageUrl(id) {
+  return `${SPECIAL_CARD_ASSET_BASE}${specialCardTxtFilename(id)}`;
+}
+
+function specialQuizSetKey(level, caseId) {
+  return 'L' + level + '_C' + caseId;
+}
+
+/** คำถาม 1 ข้อ — รองรับทั้งจริง/เท็จ (tf) และตัวเลือก A/B/C (mcq) เพื่อขยายภายหลัง */
+function sanitizeSpecialQuizQuestion(q) {
+  if (!q || typeof q !== 'object') return null;
+  const text = String(q.text == null ? '' : q.text).trim();
+  if (!text) return null;
+  const type = q.type === 'mcq' ? 'mcq' : 'tf';
+  if (type === 'mcq') {
+    /* รักษาตำแหน่งตัวเลือก (A=0,B=1,...) — ตัดเฉพาะช่องว่างท้ายสุด ไม่ขยับ index คำตอบ */
+    const choices = (Array.isArray(q.choices) ? q.choices : [])
+      .map((c) => String(c == null ? '' : c).trim())
+      .slice(0, 8);
+    while (choices.length && choices[choices.length - 1] === '') choices.pop();
+    if (choices.filter((c) => c).length < 2) return null;
+    let ci = Number(q.correctIndex);
+    if (!Number.isInteger(ci) || ci < 0 || ci >= choices.length || choices[ci] === '') {
+      ci = choices.findIndex((c) => c);
+      if (ci < 0) ci = 0;
+    }
+    return { type: 'mcq', text: text.slice(0, 500), choices, correctIndex: ci };
+  }
+  return { type: 'tf', text: text.slice(0, 500), answerTrue: !!q.answerTrue };
+}
+
+function sanitizeSpecialCard(c) {
+  const src = (c && typeof c === 'object') ? c : {};
+  const rarity = SPECIAL_QUIZ_CARD_RARITIES.indexOf(src.rarity) >= 0 ? src.rarity : 'rare';
+  let cardId = Number(src.cardId);
+  if (!(cardId >= 1 && cardId <= 7)) cardId = null;
+  let imageUrl = String(src.imageUrl == null ? '' : src.imageUrl).trim().slice(0, 600);
+  let txtImageUrl = String(src.txtImageUrl == null ? '' : src.txtImageUrl).trim().slice(0, 600);
+  if (cardId) {
+    if (!imageUrl) imageUrl = specialCardImageUrl(cardId);
+    if (!txtImageUrl) txtImageUrl = specialCardTxtImageUrl(cardId);
+  } else if (imageUrl) {
+    const m = imageUrl.match(/\/card-(\d)\.png/i);
+    if (m) {
+      cardId = Number(m[1]);
+      imageUrl = specialCardImageUrl(cardId);
+      if (!txtImageUrl) txtImageUrl = specialCardTxtImageUrl(cardId);
+    }
+  }
+  return {
+    cardId: cardId || null,
+    th: String(src.th == null ? '' : src.th).trim().slice(0, 160),
+    en: String(src.en == null ? '' : src.en).trim().slice(0, 160),
+    rarity,
+    imageUrl,
+    txtImageUrl,
+  };
+}
+
+/** คืน object 15 ชุดเสมอ (ชุดที่ยังไม่ตั้ง = ว่าง) */
+function sanitizeSpecialQuizSets(obj) {
+  const out = {};
+  SPECIAL_QUIZ_LEVELS.forEach((L) => SPECIAL_QUIZ_CASES.forEach((C) => {
+    const key = specialQuizSetKey(L, C);
+    const src = (obj && typeof obj === 'object' && obj[key] && typeof obj[key] === 'object') ? obj[key] : {};
+    const questions = (Array.isArray(src.questions) ? src.questions : [])
+      .map(sanitizeSpecialQuizQuestion)
+      .filter(Boolean)
+      .slice(0, 50);
+    out[key] = { questions, specialCard: sanitizeSpecialCard(src.specialCard) };
+  }));
+  return out;
+}
+
+/** เลือกชุดคำถามตาม level+case (fallback ชุด L1_C1) */
+function getSpecialQuizSet(settings, level, caseId) {
+  const sets = (settings && settings.specialQuizSets) || sanitizeSpecialQuizSets({});
+  const L = SPECIAL_QUIZ_LEVELS.indexOf(Number(level)) >= 0 ? Number(level) : 1;
+  /* caseId เป็นเลขคดีรวม 1-15 (5 ระดับ × 3 คดี) → แปลงเป็นคดีสัมพัทธ์ในระดับ 1-3 */
+  const rel = ((Math.max(1, Number(caseId) || 1) - 1) % 3) + 1;
+  const C = SPECIAL_QUIZ_CASES.indexOf(rel) >= 0 ? rel : 1;
+  return sets[specialQuizSetKey(L, C)] || sets[specialQuizSetKey(1, 1)] || { questions: [], specialCard: sanitizeSpecialCard({}) };
+}
+
+/* ===== Special Quiz ในเกม — ไอคอนสุ่มในฉาก + เซสชันถาม-ตอบ multiplayer (ทุกคนต้องตอบถูก) ===== */
+/** เฉพาะ 4 มินิเกมนี้ (ตอนสืบสวน) ที่ไอคอนพิเศษจะสุ่มโผล่ */
+const SPECIAL_QUIZ_ELIGIBLE_MAP_IDS = ['mng8a80o', 'mnorwqx1', 'mnptfts2', 'mnpz6rkp'];
+const SPECIAL_QUIZ_ICON_TYPES = ['lawyer', 'police'];
+/** โอกาสโผล่ = 1 ใน 3 ของการเล่นแต่ละรอบ */
+const SPECIAL_QUIZ_SPAWN_CHANCE = 1 / 3;
+/** เวลาให้ตอบต่อข้อ (มิลลิวิ) — ค่าคงที่เริ่มต้น (ย้ายไป Admin ได้ภายหลัง) */
+const SPECIAL_QUIZ_ANSWER_MS = 20000;
+/** หน่วงโชว์เฉลยก่อนข้อต่อไป */
+const SPECIAL_QUIZ_REVEAL_MS = 2600;
+
+/** แปลงคำถาม 1 ข้อให้อยู่ในรูป {text, choices[], correctIndex} เสมอ (tf -> จริง/เท็จ) */
+function specialQuizNormalizeQuestion(q) {
+  if (!q || typeof q !== 'object') return null;
+  const text = String(q.text == null ? '' : q.text).trim();
+  if (!text) return null;
+  if (q.type === 'mcq') {
+    const choices = (Array.isArray(q.choices) ? q.choices : []).map((c) => String(c == null ? '' : c)).filter((c) => c.trim() !== '');
+    if (choices.length < 2) return null;
+    let ci = Number(q.correctIndex);
+    if (!Number.isInteger(ci) || ci < 0 || ci >= choices.length) ci = 0;
+    return { text, choices, correctIndex: ci };
+  }
+  return { text, choices: ['จริง', 'เท็จ'], correctIndex: q.answerTrue ? 0 : 1 };
+}
+
+function specialQuizShuffle(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+function specialQuizTileWalkable(md, x, y) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  if (x < 0 || x >= w || y < 0 || y >= h) return false;
+  const row = md.objects && md.objects[y];
+  return !!(row && row[x] !== 1);
+}
+
+/** หลีกเลี่ยงโซน gameplay (คำตอบจริง/ผิด, hub, ตัวเลือกหยิบมาวาง) เพื่อไม่ชนกลไกเกม */
+function specialQuizTileInGameZone(md, x, y) {
+  if (quizCellOn(md.quizTrueArea || [], x, y)) return true;
+  if (quizCellOn(md.quizFalseArea || [], x, y)) return true;
+  if (quizCellOn(md.quizCarryHubArea || [], x, y)) return true;
+  const oa = md.quizCarryOptionArea;
+  if (oa && oa[y] && oa[y][x]) return true;
+  return false;
+}
+
+/** หา tile ที่เดินถึงได้ (BFS) และไม่อยู่ในโซน gameplay — คืนพิกัดกึ่งกลาง tile */
+function pickSpecialQuizSpawnTile(md) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  /* seed BFS จากพื้นที่ที่ผู้เล่นเกิดจริง (spawnArea) เพื่อรับประกันว่าไอคอนเดินไปถึงได้
+     fallback: md.spawn (ถ้าเดินได้) แล้วค่อยสแกนหา walkable tile แรก */
+  let sx = -1;
+  let sy = -1;
+  const spawnGrid = md.spawnArea;
+  if (Array.isArray(spawnGrid)) {
+    for (let y = 0; y < h && sx < 0; y++) {
+      const row = spawnGrid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && specialQuizTileWalkable(md, x, y)) { sx = x; sy = y; break; }
+      }
+    }
+  }
+  if (sx < 0) {
+    const sp = md.spawn || { x: 1, y: 1 };
+    const fx = Math.floor(Number(sp.x));
+    const fy = Math.floor(Number(sp.y));
+    if (specialQuizTileWalkable(md, fx, fy)) { sx = fx; sy = fy; }
+  }
+  if (sx < 0) {
+    for (let y = 0; y < h && sx < 0; y++) {
+      for (let x = 0; x < w; x++) {
+        if (specialQuizTileWalkable(md, x, y)) { sx = x; sy = y; break; }
+      }
+    }
+  }
+  if (sx < 0) return null;
+  const q = [[sx, sy]];
+  const seen = new Set([sx + ',' + sy]);
+  const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+  const cands = [];
+  while (q.length) {
+    const [cx, cy] = q.shift();
+    for (let di = 0; di < dirs.length; di++) {
+      const nx = cx + dirs[di][0];
+      const ny = cy + dirs[di][1];
+      const k = nx + ',' + ny;
+      if (seen.has(k)) continue;
+      if (!specialQuizTileWalkable(md, nx, ny)) continue;
+      seen.add(k);
+      q.push([nx, ny]);
+      if (!specialQuizTileInGameZone(md, nx, ny)) {
+        const dist = Math.abs(nx - sx) + Math.abs(ny - sy);
+        if (dist >= 2) cands.push({ x: nx, y: ny });
+      }
+    }
+  }
+  if (!cands.length) return null;
+  const pick = cands[Math.floor(Math.random() * cands.length)];
+  return { x: pick.x + 0.5, y: pick.y + 0.5 };
+}
+
+function clearSpecialQuizTimers(space) {
+  if (Array.isArray(space.specialQuizTimers)) {
+    space.specialQuizTimers.forEach((t) => clearTimeout(t));
+  }
+  space.specialQuizTimers = [];
+  if (space.specialQuizContinueTimer) {
+    clearTimeout(space.specialQuizContinueTimer);
+    space.specialQuizContinueTimer = null;
+  }
+  space.specialQuizAwaitContinue = false;
+}
+
+/** payload ไอคอนสำหรับ client (null = ไม่มี/ถูกทริกแล้ว) */
+function specialQuizIconPayload(space) {
+  const sq = space && space.specialQuiz;
+  if (!sq || sq.triggered || sq.done) return null;
+  return { iconType: sq.iconType, x: sq.x, y: sq.y };
+}
+
+/** เริ่มมินิเกมสืบสวน: สุ่ม 1/3 ว่ารอบนี้จะมีไอคอนพิเศษไหม + เลือกตำแหน่ง */
+function maybeSpawnSpecialQuizForRun(space) {
+  clearSpecialQuizTimers(space);
+  space.specialQuiz = null;
+  space.specialCardAwardedThisRun = null;
+  space.timeDilationPendingSec = 0;
+  /* หมายเหตุ: ไม่ล้าง pendingSpecialCard ที่นี่ — การ์ดที่ใช้ใน trial/lobby ต้องคงอยู่จนกว่าจะถูกใช้
+     หรือถูกแทนด้วยการ์ดใบใหม่ (endSpecialQuizSession เขียนทับเมื่อได้ใบใหม่) */
+  if (!space || !space.detectiveMinigameActive) return;
+  const mapId = String(space.mapId || '').trim();
+  if (SPECIAL_QUIZ_ELIGIBLE_MAP_IDS.indexOf(mapId) < 0) return;
+  const level = Number(space.detectiveLobbyLevel) || 1;
+  const caseId = Number(space.detectiveLobbyCaseId) || 1;
+  const settings = loadQuizSettings();
+  const set = getSpecialQuizSet(settings, level, caseId);
+  const questions = (set && Array.isArray(set.questions) ? set.questions : [])
+    .map(specialQuizNormalizeQuestion)
+    .filter(Boolean);
+  const card = set && set.specialCard;
+  const hasCard = !!(card && (card.cardId || card.imageUrl));
+  if (!questions.length || !hasCard) { console.log('[special-quiz] skip:no-questions-or-card', mapId, 'L' + level + '_C' + caseId, 'q=' + questions.length, 'card=' + hasCard); return; }
+  const forced = !!space.forceSpecialQuiz;
+  const roll = Math.random();
+  if (!forced && roll > SPECIAL_QUIZ_SPAWN_CHANCE) { console.log('[special-quiz] skip:roll', mapId, roll.toFixed(3), '>', SPECIAL_QUIZ_SPAWN_CHANCE.toFixed(3)); return; }
+  if (forced) console.log('[special-quiz] FORCE-spawn (debug)', mapId);
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md) { console.log('[special-quiz] skip:no-map', mapId); return; }
+  const tile = pickSpecialQuizSpawnTile(md);
+  if (!tile) { console.log('[special-quiz] skip:no-tile', mapId); return; }
+  const iconType = SPECIAL_QUIZ_ICON_TYPES[Math.floor(Math.random() * SPECIAL_QUIZ_ICON_TYPES.length)];
+  console.log('[special-quiz] SPAWN', mapId, 'L' + level + '_C' + caseId, iconType, 'tile', tile.x, tile.y);
+  space.specialQuiz = {
+    iconType,
+    x: tile.x,
+    y: tile.y,
+    level,
+    caseId,
+    card,
+    triggered: false,
+    done: false,
+    session: null,
+  };
+}
+
+function emitSpecialQuizIcon(sid, space) {
+  const payload = specialQuizIconPayload(space);
+  if (payload) io.to(sid).emit('special-quiz-icon', payload);
+}
+
+/** roster ของเซสชัน: ผู้เล่นจริง + บอทเติมช่อง (บอทตอบถูกเสมอ) — โชว์ในแผง "ใครตอบอะไร" */
+function buildSpecialQuizRoster(space) {
+  const roster = [];
+  space.peers.forEach((p, id) => {
+    roster.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isBot: false });
+  });
+  const botN = effectiveBotSlotCount(space);
+  for (let i = 0; i < botN; i++) {
+    roster.push({ id: 'sqbot-' + i, nickname: 'บอท ' + (i + 1), isBot: true });
+  }
+  return roster;
+}
+
+function specialQuizRosterPayload(sess) {
+  return (sess && Array.isArray(sess.roster) ? sess.roster : [])
+    .map((m) => ({ id: m.id, nickname: m.nickname, isBot: !!m.isBot }));
+}
+
+/** id ที่ต้องตอบในข้อนี้ = ผู้เล่นจริงที่ยังอยู่ + บอททุกตัวใน roster (ใช้ตัดสิน "ทุกคนตอบถูก") */
+function specialQuizExpectedIds(space, sess) {
+  const realAlive = new Set(space.peers.keys());
+  const out = [];
+  (sess && Array.isArray(sess.roster) ? sess.roster : []).forEach((m) => {
+    if (m.isBot) out.push(m.id);
+    else if (realAlive.has(m.id)) out.push(m.id);
+  });
+  return out;
+}
+
+/** ตอบครบทุกคน (จริง+บอท) แล้วตัดสินทันที ไม่ต้องรอหมดเวลา */
+function maybeResolveSpecialQuizAllAnswered(sid, space) {
+  const sess = space.specialQuiz && space.specialQuiz.session;
+  if (!sess || sess.resolving) return;
+  const expected = specialQuizExpectedIds(space, sess);
+  const allAnswered = expected.length > 0 && expected.every((pid) => Number.isInteger(sess.answers[pid]));
+  if (allAnswered) resolveSpecialQuizQuestion(sid, space, false);
+}
+
+/** บอททยอยตอบถูกภายในเวลาตอบ (ตอบถูกเสมอเพื่อให้ทีมมีโอกาสได้การ์ด) */
+function scheduleSpecialQuizBotAnswers(sid, space, sess, q) {
+  const bots = (Array.isArray(sess.roster) ? sess.roster : []).filter((m) => m.isBot);
+  if (!bots.length) return;
+  const windowMs = Math.max(1200, SPECIAL_QUIZ_ANSWER_MS - 1500);
+  bots.forEach((b) => {
+    const delay = 900 + Math.floor(Math.random() * windowMs);
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      const sNow = spNow && spNow.specialQuiz && spNow.specialQuiz.session;
+      if (!spNow || sNow !== sess || sess.resolving) return;
+      if (Number.isInteger(sess.answers[b.id])) return;
+      sess.answers[b.id] = q.correctIndex;
+      io.to(sid).emit('special-quiz-answer-update', { id: b.id, answered: true });
+      maybeResolveSpecialQuizAllAnswered(sid, spNow);
+    }, delay);
+    space.specialQuizTimers.push(t);
+  });
+}
+
+function sendSpecialQuizQuestion(sid, space) {
+  const sq = space.specialQuiz;
+  const sess = sq && sq.session;
+  if (!sess) return;
+  const q = sess.questions[sess.qIndex];
+  if (!q) { endSpecialQuizSession(sid, space, false); return; }
+  sess.answers = {};
+  sess.phaseEndsAt = Date.now() + SPECIAL_QUIZ_ANSWER_MS;
+  io.to(sid).emit('special-quiz-question', {
+    index: sess.qIndex,
+    total: sess.questions.length,
+    text: q.text,
+    choices: q.choices,
+    endsAt: sess.phaseEndsAt,
+    iconType: sq.iconType,
+    roster: specialQuizRosterPayload(sess),
+  });
+  scheduleSpecialQuizBotAnswers(sid, space, sess, q);
+  const t = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.specialQuiz !== sq || sq.session !== sess) return;
+    resolveSpecialQuizQuestion(sid, spNow, true);
+  }, SPECIAL_QUIZ_ANSWER_MS + 80);
+  space.specialQuizTimers.push(t);
+}
+
+/** ตัดสินข้อปัจจุบัน: ต้องตอบครบทุกคน และถูกทุกคน จึงผ่าน */
+function resolveSpecialQuizQuestion(sid, space, fromTimeout) {
+  const sq = space.specialQuiz;
+  const sess = sq && sq.session;
+  if (!sess || sess.resolving) return;
+  sess.resolving = true;
+  clearSpecialQuizTimers(space);
+  const q = sess.questions[sess.qIndex];
+  const expected = specialQuizExpectedIds(space, sess);
+  let allCorrect = expected.length > 0;
+  expected.forEach((pid) => {
+    const a = sess.answers[pid];
+    if (!(Number.isInteger(a) && a === q.correctIndex)) allCorrect = false;
+  });
+  io.to(sid).emit('special-quiz-result', {
+    index: sess.qIndex,
+    correctIndex: q.correctIndex,
+    answers: { ...sess.answers },
+    roster: specialQuizRosterPayload(sess),
+    allCorrect,
+    timeout: !!fromTimeout,
+  });
+  if (!allCorrect) {
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      if (!spNow || spNow.specialQuiz !== sq) return;
+      endSpecialQuizSession(sid, spNow, false);
+    }, SPECIAL_QUIZ_REVEAL_MS);
+    space.specialQuizTimers.push(t);
+    return;
+  }
+  sess.qIndex++;
+  if (sess.qIndex >= sess.questions.length) {
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      if (!spNow || spNow.specialQuiz !== sq) return;
+      endSpecialQuizSession(sid, spNow, true);
+    }, SPECIAL_QUIZ_REVEAL_MS);
+    space.specialQuizTimers.push(t);
+    return;
+  }
+  const t = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.specialQuiz !== sq || sq.session !== sess) return;
+    sess.resolving = false;
+    sendSpecialQuizQuestion(sid, spNow);
+  }, SPECIAL_QUIZ_REVEAL_MS);
+  space.specialQuizTimers.push(t);
+}
+
+/**
+ * นิยามการ์ดพิเศษ 7 ใบ — when = ช่วงที่การ์ดทำงาน:
+ *  minigame    = ใช้ทันทีในมินิเกมที่เพิ่งเล่น (Time Dilation)
+ *  now         = ใช้ทันทีตอนได้รับ (Fund coins)
+ *  after_game  = ตอนจบมินิเกมก่อนกลับ LobbyB (Free Evidence)
+ *  pre_trial   = ก่อนโหวตพิจารณาคดี (Silence)
+ *  trial_vote  = ระหว่างโหวตพิจารณาคดี (Extension)
+ *  trial_revote= หลังเฉลยถ้าจับผิดตัว (Bail Coin)
+ *  lobby_next  = ใน LobbyB ก่อนเลือกมินิเกมรอบหน้า (Ban)
+ */
+const SPECIAL_CARD_DEFS = {
+  1: { key: 'time_dilation', when: 'minigame',     addSec: 10, th: 'เพิ่มเวลาเล่นมินิเกม +10 วินาที' },
+  2: { key: 'extension',     when: 'trial_vote',   addSec: 10, th: 'เพิ่มเวลาโหวตพิจารณาคดี +10 วินาที' },
+  3: { key: 'ban',           when: 'lobby_next',               th: 'โหวตแบนผู้เล่น 1 คน ไม่ให้เล่นมินิเกมรอบหน้า' },
+  4: { key: 'silence',       when: 'pre_trial',                th: 'โหวตปิดปากผู้เล่น 1 คน ห้ามโหวตในพิจารณาคดี' },
+  5: { key: 'bail',          when: 'trial_revote',             th: 'จับผิดตัว ให้โหวตใหม่ได้ 1 ครั้ง' },
+  6: { key: 'fund',          when: 'now',          coins: 10,  th: 'ทุกคนรับ +10 COINS' },
+  7: { key: 'free_evidence', when: 'after_game',   evidence: 2, th: 'ทุกคนรับหลักฐานฟรี +2 ใบ' },
+};
+
+function specialCardDef(cardId) {
+  return SPECIAL_CARD_DEFS[Number(cardId)] || null;
+}
+
+/** payload การ์ดสำหรับ client (รวม metadata การใช้งาน) */
+function specialCardClientPayload(card) {
+  if (!card) return null;
+  const def = specialCardDef(card.cardId) || {};
+  return {
+    cardId: card.cardId || null,
+    th: card.th || def.th || '',
+    en: card.en || '',
+    rarity: card.rarity || 'common',
+    imageUrl: card.imageUrl || (card.cardId ? specialCardImageUrl(card.cardId) : ''),
+    txtImageUrl: card.txtImageUrl || (card.cardId ? specialCardTxtImageUrl(card.cardId) : ''),
+    effectKey: def.key || '',
+    effectWhen: def.when || '',
+    addSec: def.addSec || 0,
+    desc: def.th || '',
+  };
+}
+
+/** ใช้การ์ดที่ทำงาน "ทันที" (minigame / now) — ส่วนที่เหลือเข้าคิวรอ flow ที่ถูก */
+function applySpecialCardImmediate(sid, space, card) {
+  const def = specialCardDef(card && card.cardId);
+  if (!def) return;
+  if (def.when === 'minigame' && def.key === 'time_dilation') {
+    /* +10 วิให้รอบ quiz (mng8a80o) ตอน resume — มินิเกมอื่นฝั่ง client ขยายเอง */
+    space.timeDilationPendingSec = (space.timeDilationPendingSec || 0) + (def.addSec || 10);
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(card),
+      addSec: def.addSec || 10,
+    });
+    consumePendingSpecialCard(space, card.cardId);
+    return;
+  }
+  if (def.when === 'now' && def.key === 'fund') {
+    /* +COINS — แต่ละ client บวกเหรียญของตัวเองผ่าน PHP (server ไม่รู้ playerKey) */
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(card),
+      coins: def.coins || 10,
+    });
+    consumePendingSpecialCard(space, card.cardId);
+    return;
+  }
+  /* การ์ดที่เหลือ (after_game / pre_trial / trial_vote / trial_revote / lobby_next)
+     — คงไว้ใน pendingSpecialCard เพื่อใช้ภายหลัง */
+}
+
+function consumePendingSpecialCard(space, cardId) {
+  if (space.pendingSpecialCard && space.pendingSpecialCard.cardId === Number(cardId)) {
+    space.pendingSpecialCard.consumed = true;
+  }
+}
+
+function endSpecialQuizSession(sid, space, success) {
+  const sq = space.specialQuiz;
+  if (!sq) return;
+  clearSpecialQuizTimers(space);
+  sq.done = true;
+  sq.session = null;
+  let cardOut = null;
+  if (success && sq.card && (sq.card.cardId || sq.card.imageUrl)) {
+    space.specialCardAwardedThisRun = sq.card;
+    cardOut = specialCardClientPayload(sq.card);
+    space.pendingSpecialCard = { cardId: Number(sq.card.cardId) || null, card: sq.card, consumed: false };
+    applySpecialCardImmediate(sid, space, sq.card);
+  }
+  io.to(sid).emit('special-quiz-ended', { success: !!success, card: cardOut });
+  /* รอ client กด «เล่นต่อ» ก่อนค่อยเล่นรอบ quiz ต่อ (กันเวลาเดินตอนค้างอ่านการ์ด)
+     — มี safety timeout กันค้างถ้าไม่มีใครกด */
+  space.specialQuizAwaitContinue = true;
+  if (space.specialQuizContinueTimer) clearTimeout(space.specialQuizContinueTimer);
+  space.specialQuizContinueTimer = setTimeout(() => {
+    space.specialQuizContinueTimer = null;
+    finishSpecialQuizContinue(sid, space);
+  }, 32000);
+}
+
+/** เล่นรอบ quiz ต่อหลังผู้เล่นกด «เล่นต่อ» (เรียกครั้งเดียว / หรือ safety timeout) */
+function finishSpecialQuizContinue(sid, space) {
+  if (!space || !space.specialQuizAwaitContinue) return;
+  space.specialQuizAwaitContinue = false;
+  if (space.specialQuizContinueTimer) {
+    clearTimeout(space.specialQuizContinueTimer);
+    space.specialQuizContinueTimer = null;
+  }
+  resumeQuizAfterSpecialQuiz(sid, space);
+}
+
+function startSpecialQuizSession(sid, space) {
+  const sq = space.specialQuiz;
+  if (!sq || sq.triggered || sq.done) return false;
+  const settings = loadQuizSettings();
+  const set = getSpecialQuizSet(settings, sq.level, sq.caseId);
+  const all = (set && Array.isArray(set.questions) ? set.questions : [])
+    .map(specialQuizNormalizeQuestion)
+    .filter(Boolean);
+  if (!all.length) return false;
+  /* ควิซพิเศษ = สุ่มถามแค่ 1 ข้อ (รับการ์ดพิเศษ) */
+  const picked = specialQuizShuffle(all).slice(0, 1);
+  sq.triggered = true;
+  sq.session = {
+    questions: picked,
+    qIndex: 0,
+    answers: {},
+    phaseEndsAt: 0,
+    resolving: false,
+    roster: buildSpecialQuizRoster(space),
+  };
+  clearSpecialQuizTimers(space);
+  pauseQuizForSpecialQuiz(sid, space);
+  io.to(sid).emit('special-quiz-icon-clear', {});
+  sendSpecialQuizQuestion(sid, space);
+  return true;
+}
+
+function defaultQuizSettings() {
+  return {
+    readMs: 10000,
+    answerMs: 5000,
+    betweenMs: 3500,
+    /** quiz_carry: โชว์เฉพาะคำถามก่อน (มิลลิวิ) แล้วค่อยให้หยิบตัวเลือก — 0 = ไม่รอ */
+    carryReadMs: 3000,
+    /** quiz_carry: หลังตัวเลือกขึ้น ให้เวลาตอบ (มิลลิวิ) */
+    carryAnswerMs: 5000,
+    /** quiz_carry: จำนวนข้อต่อเซสชันก่อนจบเกม (พรีวิว) — 0 = ไม่จบอัตโนมัติ */
+    carrySessionLength: 0,
+    /** quiz_carry: สีแผง #quiz-map-question-panel ในเกม/พรีวิว (จัดใน Admin แท็บหยิบมาวาง) */
+    carryMapPanelTheme: defaultCarryMapPanelTheme(),
+    /** เกมตอบคำถามถูก/ผิด: สีแผงคำถามบนแผนที่ (#quiz-map-question-panel) — Admin แท็บคำถามเกม */
+    quizMapPanelTheme: defaultCarryMapPanelTheme(),
+    /** quiz_carry: สี/ขอบ/ขนาดตัวเลขนับ 3-2-1 (embed พรีวิว) — Admin แท็บหยิบมาวาง */
+    carryEmbedCountdownTheme: defaultCarryEmbedCountdownTheme(),
+    /** quiz_carry: สีป้ายตัวเลือกบนแผนที่ (canvas) ต่อช่อง 1–16 */
+    carryChoicePlaqueThemes: defaultCarryChoicePlaqueThemes(),
+    /** legacy: ช่องแรกเท่ากับ carryChoicePlaqueThemes[0] */
+    carryChoicePlaqueTheme: defaultCarryChoicePlaqueTheme(),
+    /** quiz_carry: ขยายป้ายตัวเลือกบนแมป (กว้าง/สูง/ฟอนต์) — 0.85–2.5 */
+    carryChoicePlaqueMapScale: 1.25,
+    /** quiz_carry: ถ้าใส่รหัสฉาก + คูณ — เดินเร็วเฉพาะแมปนั้น (เทียบกับค่าเริ่มในไคลเอนต์) */
+    carryWalkSpeedMultForMapId: '',
+    carryWalkSpeedMult: null,
+    /** ถูก/ผิด: สุ่มกี่ข้อต่อรอบจากชุดคำถาม (สูงสุดเท่าที่มีในชุด) */
+    quizRoundQuestionCount: 10,
+    questions: [],
+    carryQuestions: [],
+    battleQuizMcq: [],
+    /** 15 ชุดคำถามพิเศษ (Level×Case) สำหรับรับการ์ดพิเศษ */
+    specialQuizSets: sanitizeSpecialQuizSets({}),
+  };
+}
+
+function defaultCarryMapPanelTheme() {
+  return {
+    panelBg: 'rgba(12, 14, 28, 0.88)',
+    panelBorder: 'rgba(255, 214, 102, 0.7)',
+    borderWidthPx: 2,
+    textColor: '#f1f5f9',
+    questionFontMinPx: 10,
+    questionFontMaxPx: 24,
+  };
+}
+
+function sanitizeCssColorToken(input, fallback) {
+  const t = String(input == null ? '' : input).trim().slice(0, 120);
+  if (!t) return fallback;
+  if (/url\s*\(|expression\s*\(|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fallback;
+  if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+  if (/^rgba?\(\s*[^)]+\)$/i.test(t)) {
+    const inner = t.replace(/^rgba?\(\s*/i, '').replace(/\)\s*$/, '');
+    if (inner.length <= 96 && /^[0-9\s.,%+-]+$/.test(inner)) return t.replace(/\s+/g, ' ').trim();
+  }
+  return fallback;
+}
+
+function sanitizeCarryMapPanelTheme(raw) {
+  const d = defaultCarryMapPanelTheme();
+  if (!raw || typeof raw !== 'object') return d;
+  let qMin = Number(raw.questionFontMinPx);
+  let qMax = Number(raw.questionFontMaxPx);
+  if (!Number.isFinite(qMin)) qMin = d.questionFontMinPx;
+  if (!Number.isFinite(qMax)) qMax = d.questionFontMaxPx;
+  qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+  qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+  if (qMax < qMin) {
+    const t = qMin;
+    qMin = qMax;
+    qMax = t;
+  }
+  return {
+    panelBg: sanitizeCssColorToken(raw.panelBg, d.panelBg),
+    panelBorder: sanitizeCssColorToken(raw.panelBorder, d.panelBorder),
+    borderWidthPx: (() => {
+      let w = Number(raw.borderWidthPx);
+      if (!Number.isFinite(w)) w = d.borderWidthPx;
+      return Math.max(0, Math.min(12, Math.round(w)));
+    })(),
+    textColor: sanitizeCssColorToken(raw.textColor, d.textColor),
+    questionFontMinPx: qMin,
+    questionFontMaxPx: qMax,
+  };
+}
+
+/** ป้ายตัวเลือกบนแผนที่ (canvas) — quiz_carry */
+function defaultCarryChoicePlaqueTheme() {
+  return {
+    borderMode: 'neon',
+    fixedBorder: 'rgba(122, 200, 255, 0.9)',
+    fillBg: 'rgba(12, 10, 20, 0.88)',
+    textColor: 'rgba(248, 249, 255, 1)',
+    borderWidthPx: 2.5,
+  };
+}
+
+function sanitizeCarryChoicePlaqueTheme(raw) {
+  const d = defaultCarryChoicePlaqueTheme();
+  if (!raw || typeof raw !== 'object' || Array.isArray(raw)) return sanitizeCarryChoicePlaqueTheme({});
+  const mode = String(raw.borderMode || '').toLowerCase() === 'fixed' ? 'fixed' : 'neon';
+  let bw = Number(raw.borderWidthPx);
+  if (!Number.isFinite(bw)) bw = d.borderWidthPx;
+  bw = Math.round(Math.max(0, Math.min(8, bw)) * 10) / 10;
+  return {
+    borderMode: mode,
+    fixedBorder: sanitizeCssColorToken(raw.fixedBorder, d.fixedBorder),
+    fillBg: sanitizeCssColorToken(raw.fillBg, d.fillBg),
+    textColor: sanitizeCssColorToken(raw.textColor, d.textColor),
+    borderWidthPx: bw,
+    plaqueImageUrl: sanitizeCarryChoiceImageUrl(raw.plaqueImageUrl),
+  };
+}
+
+const QUIZ_CARRY_PLAQUE_THEME_SLOTS = 16;
+
+function defaultCarryChoicePlaqueThemes() {
+  const out = [];
+  for (let i = 0; i < QUIZ_CARRY_PLAQUE_THEME_SLOTS; i++) {
+    out.push(sanitizeCarryChoicePlaqueTheme({}));
+  }
+  return out;
+}
+
+/** อาร์เรย์ 16 ช่อง — รับได้ทั้ง carryChoicePlaqueThemes หรืออ็อบเจ็กต์เดียว (legacy) */
+function sanitizeCarryChoicePlaqueThemes(raw) {
+  if (Array.isArray(raw) && raw.length > 0) {
+    const out = [];
+    for (let i = 0; i < QUIZ_CARRY_PLAQUE_THEME_SLOTS; i++) {
+      out.push(sanitizeCarryChoicePlaqueTheme(raw[i] || {}));
+    }
+    return out;
+  }
+  if (raw != null && typeof raw === 'object' && !Array.isArray(raw)) {
+    const one = sanitizeCarryChoicePlaqueTheme(raw);
+    return Array.from({ length: QUIZ_CARRY_PLAQUE_THEME_SLOTS }, () => ({ ...one }));
+  }
+  return defaultCarryChoicePlaqueThemes();
+}
+
+function sanitizeCarryChoiceImageUrl(input) {
+  const s = String(input == null ? '' : input).trim().slice(0, 512);
+  if (!s) return '';
+  if (/[\s<>'"`]/.test(s)) return '';
+  if (s.startsWith('/')) {
+    if (!/^\/[\w\-./?#=&%+]+$/i.test(s)) return '';
+    return s;
+  }
+  const low = s.toLowerCase();
+  if (!low.startsWith('https://') && !low.startsWith('http://')) return '';
+  try {
+    const u = new URL(s);
+    if (u.protocol !== 'http:' && u.protocol !== 'https:') return '';
+    return s;
+  } catch (e) {
+    return '';
+  }
+}
+
+function defaultCarryEmbedCountdownTheme() {
+  return {
+    overlayBackdrop: 'rgba(6, 8, 14, 0.52)',
+    innerBg: 'rgba(0, 0, 0, 0.78)',
+    innerBorder: 'rgba(94, 234, 212, 0.82)',
+    innerBorderWpx: 1,
+    innerRadiusPx: 14,
+    digitColor: '#ffe066',
+    mapDigitCqmin: 78,
+    mapDigitCqh: 82,
+    mapDigitMaxPx: 220,
+    screenDigitVw: 32,
+    screenDigitMaxPx: 200,
+  };
+}
+
+function sanitizeCarryEmbedCountdownTheme(raw) {
+  const d = defaultCarryEmbedCountdownTheme();
+  if (!raw || typeof raw !== 'object') return d;
+  const clampN = (v, lo, hi, def) => {
+    const n = Number(v);
+    if (!Number.isFinite(n)) return def;
+    return Math.max(lo, Math.min(hi, Math.round(n)));
+  };
+  return {
+    overlayBackdrop: sanitizeCssColorToken(raw.overlayBackdrop, d.overlayBackdrop),
+    innerBg: sanitizeCssColorToken(raw.innerBg, d.innerBg),
+    innerBorder: sanitizeCssColorToken(raw.innerBorder, d.innerBorder),
+    innerBorderWpx: clampN(raw.innerBorderWpx, 0, 12, d.innerBorderWpx),
+    innerRadiusPx: clampN(raw.innerRadiusPx, 0, 32, d.innerRadiusPx),
+    digitColor: sanitizeCssColorToken(raw.digitColor, d.digitColor),
+    mapDigitCqmin: clampN(raw.mapDigitCqmin, 35, 100, d.mapDigitCqmin),
+    mapDigitCqh: clampN(raw.mapDigitCqh, 35, 100, d.mapDigitCqh),
+    mapDigitMaxPx: clampN(raw.mapDigitMaxPx, 48, 400, d.mapDigitMaxPx),
+    screenDigitVw: clampN(raw.screenDigitVw, 6, 44, d.screenDigitVw),
+    screenDigitMaxPx: clampN(raw.screenDigitMaxPx, 48, 220, d.screenDigitMaxPx),
+  };
+}
+
+/** หมวด Quiz Battle (อ้างอิงธีมหน้า Quiz-Battle) — id ต้องตรงกับแอดมิน */
+const QUIZ_BATTLE_CATEGORY_IDS = new Set([
+  'cybercrime',
+  'cyber_law',
+  'privacy',
+  'digital_security',
+  'social_media',
+  'ethics',
+  'ai_data',
+]);
+
+/** คำถาม 3 ตัวเลือก A/B/C แยกหมวด — สำหรับโหมด Quiz Battle / โดม */
+function sanitizeBattleQuizMcq(arr) {
+  if (!Array.isArray(arr)) return [];
+  const out = [];
+  for (const q of arr) {
+    if (!q || typeof q !== 'object') continue;
+    let categoryId = String(q.categoryId || '').trim();
+    if (!categoryId || !QUIZ_BATTLE_CATEGORY_IDS.has(categoryId)) {
+      categoryId = 'cybercrime';
+    }
+    const text = String(q.text || '').trim().slice(0, 500);
+    if (!text) continue;
+    const rawChoices = Array.isArray(q.choices) ? q.choices : [];
+    const choices = rawChoices.map((c) => String(c || '').trim().slice(0, 160));
+    if (choices.length !== 3 || !choices.every(Boolean)) continue;
+    let ci = Number(q.correctIndex);
+    if (!Number.isFinite(ci)) ci = 0;
+    ci = Math.max(0, Math.min(2, Math.floor(ci)));
+    out.push({ categoryId, text, choices, correctIndex: ci });
+    if (out.length >= 200) break;
+  }
+  return out;
+}
+
+/** คำถามแบบหลายตัวเลือก (หยิบมาวาง / quiz_carry) — เก็บใน quiz-settings.json */
+function sanitizeCarryQuestions(arr) {
+  if (!Array.isArray(arr)) return [];
+  const out = [];
+  for (const q of arr) {
+    if (!q || typeof q !== 'object') continue;
+    const text = String(q.text || '').trim().slice(0, 500);
+    if (!text) continue;
+    let choices = Array.isArray(q.choices)
+      ? q.choices.map((c) => String(c || '').trim().slice(0, 160)).filter(Boolean)
+      : [];
+    if (choices.length < 2) continue;
+    if (choices.length > 16) choices = choices.slice(0, 16);
+    let ci = Number(q.correctIndex);
+    if (!Number.isFinite(ci)) ci = 0;
+    ci = Math.max(0, Math.min(choices.length - 1, Math.floor(ci)));
+    const row = { text, choices, correctIndex: ci };
+    if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+      const urls = choices.map((_, idx) => sanitizeCarryChoiceImageUrl(q.choiceImageUrls[idx]));
+      if (urls.some((u) => u)) row.choiceImageUrls = urls;
+    }
+    out.push(row);
+    if (out.length >= 80) break;
+  }
+  return out;
+}
+
+function clampQuizMs(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(1000, Math.min(300000, Math.floor(v)));
+}
+
+function clampQuizBetweenMs(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(0, Math.min(300000, Math.floor(v)));
+}
+
+function clampCarrySessionLength(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(0, Math.min(500, Math.floor(v)));
+}
+
+/** เกมตอบคำถามถูก/ผิด: จำนวนข้อที่สุ่มจากชุดต่อรอบ (เซสชัน) — 1–50 */
+function clampQuizRoundQuestionCount(n, def) {
+  const v = Number(n);
+  if (!Number.isFinite(v)) {
+    const d = Number(def);
+    if (!Number.isFinite(d)) return 10;
+    return Math.max(1, Math.min(50, Math.floor(d)));
+  }
+  return Math.max(1, Math.min(50, Math.floor(v)));
+}
+
+function clampCarryChoicePlaqueMapScale(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.round(Math.max(0.85, Math.min(2.5, v)) * 100) / 100;
+}
+
+/** รหัสฉาก (เช่น mnorwqx1) — ว่าง = ไม่ใช้คูณเดินแยกแมป */
+function sanitizeCarryWalkSpeedMultForMapId(raw) {
+  const t = String(raw == null ? '' : raw).trim().slice(0, 64);
+  if (!t) return '';
+  if (!/^[a-zA-Z0-9_-]+$/.test(t)) return '';
+  return t;
+}
+
+/** quiz_carry: คูณความเร็วเดินเมื่อ map id ตรง — null = ไม่ตั้ง */
+function clampCarryWalkSpeedMultSetting(n) {
+  if (n === null || n === undefined || n === '') return null;
+  const v = Number(n);
+  if (Number.isNaN(v)) return null;
+  return Math.round(Math.max(0.5, Math.min(3, v)) * 100) / 100;
+}
+
+function mergeQuizCarryFromMirrorIfSet(base) {
+  if (!QUIZ_SETTINGS_MIRROR_PATH) return base;
+  try {
+    if (!fs.existsSync(QUIZ_SETTINGS_MIRROR_PATH)) return base;
+    const raw = fs.readFileSync(QUIZ_SETTINGS_MIRROR_PATH, 'utf8');
+    const j = JSON.parse(raw);
+    if (!j || typeof j !== 'object') return base;
+    if (j.carryMapPanelTheme != null && typeof j.carryMapPanelTheme === 'object') {
+      base.carryMapPanelTheme = sanitizeCarryMapPanelTheme(j.carryMapPanelTheme);
+    }
+    if (j.quizMapPanelTheme != null && typeof j.quizMapPanelTheme === 'object') {
+      base.quizMapPanelTheme = sanitizeCarryMapPanelTheme(j.quizMapPanelTheme);
+    }
+    if (j.carryReadMs != null) {
+      base.carryReadMs = clampQuizBetweenMs(j.carryReadMs, base.carryReadMs);
+    }
+    if (j.carryAnswerMs != null) {
+      base.carryAnswerMs = clampQuizMs(j.carryAnswerMs, base.carryAnswerMs);
+    }
+    if (j.carrySessionLength != null) {
+      base.carrySessionLength = clampCarrySessionLength(j.carrySessionLength, base.carrySessionLength);
+    }
+    if (j.carryWalkSpeedMultForMapId != null) {
+      base.carryWalkSpeedMultForMapId = sanitizeCarryWalkSpeedMultForMapId(j.carryWalkSpeedMultForMapId);
+    }
+    if (j.carryWalkSpeedMult != null) {
+      const wm = clampCarryWalkSpeedMultSetting(j.carryWalkSpeedMult);
+      if (wm != null) base.carryWalkSpeedMult = wm;
+    }
+    if (j.carryEmbedCountdownTheme != null && typeof j.carryEmbedCountdownTheme === 'object') {
+      base.carryEmbedCountdownTheme = sanitizeCarryEmbedCountdownTheme(j.carryEmbedCountdownTheme);
+    }
+    if (Array.isArray(j.carryChoicePlaqueThemes) && j.carryChoicePlaqueThemes.length) {
+      base.carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueThemes);
+      base.carryChoicePlaqueTheme = base.carryChoicePlaqueThemes[0];
+    } else if (j.carryChoicePlaqueTheme != null && typeof j.carryChoicePlaqueTheme === 'object') {
+      base.carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueTheme);
+      base.carryChoicePlaqueTheme = base.carryChoicePlaqueThemes[0];
+    }
+    if (Array.isArray(j.carryQuestions) && j.carryQuestions.length) {
+      base.carryQuestions = sanitizeCarryQuestions(j.carryQuestions);
+    }
+    if (j.quizRoundQuestionCount != null) {
+      base.quizRoundQuestionCount = clampQuizRoundQuestionCount(j.quizRoundQuestionCount, base.quizRoundQuestionCount);
+    }
+    return base;
+  } catch (e) {
+    console.error('mergeQuizCarryFromMirrorIfSet', e.message);
+    return base;
+  }
+}
+
+/* ===== การ์ดหลักฐาน (Evidence Cards) — 3 คดี × ผู้ต้องสงสัย 3 × การ์ด 3 ใบ จัดการผ่าน Admin ===== */
+const EVIDENCE_CARDS_PATH = path.join(__dirname, 'data', 'evidence-cards.json');
+const EVIDENCE_RARITIES = ['common', 'rare', 'legendary'];
+const EVIDENCE_CASE_COUNT = 15;
+
+/* ===== รูปภาพคดี + Cutscene (LobbyA → LobbyB) — จัดการผ่าน Admin ===== */
+const CASE_MEDIA_PATH = path.join(__dirname, 'data', 'case-media.json');
+const CASE_MEDIA_COUNT = 15;
+/* Main-Lobby อยู่นอกโฟลเดอร์ Game (เสิร์ฟจาก /var/www/html) — ขึ้นไป 1 ระดับ */
+const MAIN_LOBBY_IMAGE_ROOT = path.join(__dirname, '..', 'Main-Lobby', 'IMAGE');
+
+function caseMediaDefault(n) {
+  const suspects = [1, 2, 3].map((s) => '/Main-Lobby/IMAGE/suspect-pick/case-' + n + '-suspect-' + s + '.png');
+  const culprits = [1, 2, 3].map((s) => '/Main-Lobby/IMAGE/culprit-prison/case-' + n + '-suspect-' + s + '.png');
+  return {
+    name: 'คดีที่ ' + n,
+    art: '/Main-Lobby/IMAGE/case/case-' + n + '.png',
+    detail: '/Main-Lobby/IMAGE/case/case-detail-' + n + '.png',
+    story: [
+      '/Main-Lobby/IMAGE/cutscene/case-' + n + '-story-1.png',
+      '/Main-Lobby/IMAGE/cutscene/case-' + n + '-story-2.png',
+    ],
+    suspects,
+    culprits,
+  };
+}
+
+function sanitizeCaseMediaUrlList(arr, fallbackArr) {
+  const fb = Array.isArray(fallbackArr) ? fallbackArr : [];
+  const src = Array.isArray(arr) ? arr : [];
+  return [0, 1, 2].map((i) => sanitizeCaseMediaUrl(src[i], fb[i] || fb[0] || ''));
+}
+
+/** อนุญาตเฉพาะ path รูปภายในเว็บ (กัน URL ภายนอก/สคริปต์) — ไม่ผ่าน → คืนค่า fallback */
+function sanitizeCaseMediaUrl(v, fallback) {
+  if (typeof v !== 'string') return fallback;
+  const s = v.trim();
+  if (!s) return fallback;
+  if (!/^\/[\w./-]*\.(png|jpe?g|webp)$/i.test(s)) return fallback;
+  return s;
+}
+
+function sanitizeCaseMedia(obj) {
+  const src = (obj && typeof obj === 'object' && obj.cases && typeof obj.cases === 'object') ? obj.cases : {};
+  const cases = {};
+  for (let n = 1; n <= CASE_MEDIA_COUNT; n++) {
+    const d = caseMediaDefault(n);
+    const c = src[n] || src[String(n)] || {};
+    const story = Array.isArray(c.story) ? c.story : [];
+    cases[n] = {
+      name: (typeof c.name === 'string' && c.name.trim()) ? c.name.trim().slice(0, 80) : d.name,
+      art: sanitizeCaseMediaUrl(c.art, d.art),
+      detail: sanitizeCaseMediaUrl(c.detail, d.detail),
+      story: [sanitizeCaseMediaUrl(story[0], d.story[0]), sanitizeCaseMediaUrl(story[1], d.story[1])],
+      suspects: sanitizeCaseMediaUrlList(c.suspects, d.suspects),
+      culprits: sanitizeCaseMediaUrlList(c.culprits, d.culprits),
+    };
+  }
+  return { cases };
+}
+
+function loadCaseMedia() {
+  try {
+    if (fs.existsSync(CASE_MEDIA_PATH)) {
+      return sanitizeCaseMedia(JSON.parse(fs.readFileSync(CASE_MEDIA_PATH, 'utf8')));
+    }
+  } catch (e) { /* ignore — คืนค่า default */ }
+  return sanitizeCaseMedia({});
+}
+
+function saveCaseMedia(d) {
+  try {
+    const clean = sanitizeCaseMedia(d);
+    fs.writeFileSync(CASE_MEDIA_PATH, JSON.stringify(clean, null, 2), 'utf8');
+    return { ok: true, cases: clean.cases };
+  } catch (e) {
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') err = 'ไม่มีสิทธิ์เขียนไฟล์ case-media.json (chown เป็น user ที่รันเกม)';
+    else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+/** รายการรูปที่มีจริงในโฟลเดอร์ case / cutscene (ไว้ให้ Admin เลือก) */
+function listCaseMediaImages() {
+  const out = { case: [], cutscene: [], 'suspect-pick': [], 'culprit-prison': [] };
+  ['case', 'cutscene', 'suspect-pick', 'culprit-prison'].forEach((sub) => {
+    try {
+      const p = path.join(MAIN_LOBBY_IMAGE_ROOT, sub);
+      out[sub] = fs.readdirSync(p)
+        .filter((f) => /\.(png|jpe?g|webp)$/i.test(f))
+        .sort((a, b) => a.localeCompare(b, undefined, { numeric: true }))
+        .map((f) => '/Main-Lobby/IMAGE/' + sub + '/' + f);
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+  });
+  return out;
+}
+const EVIDENCE_IMAGE_DIRS = ['suspect-1', 'suspect-2', 'suspect-3'];
+/* rarity คิดจากเลขไฟล์การ์ด: 01-22 = common, 23-44 = rare, 45-54 = legendary (ชี้คนร้าย) */
+const EVIDENCE_RARITY_RANGES = [
+  { rarity: 'common', min: 1, max: 22, stars: 1 },
+  { rarity: 'rare', min: 23, max: 44, stars: 2 },
+  { rarity: 'legendary', min: 45, max: 54, stars: 3 },
+];
+
+function evidenceRarityForNum(n) {
+  for (const r of EVIDENCE_RARITY_RANGES) if (n >= r.min && n <= r.max) return r;
+  return EVIDENCE_RARITY_RANGES[0];
+}
+
+function evidenceCardImageDefault(suspectIdx, cardIdx) {
+  return '/Game/img/evidence-cards/suspect-' + (suspectIdx + 1) + '/Card-0' + (cardIdx + 1) + '.png';
+}
+
+/* แคชพูลรูปการ์ดต่อโฟลเดอร์ผู้ต้องสงสัย แยกตาม rarity (สแกนไฟล์จริง) */
+let _evidencePoolCache = null;
+let _evidencePoolCacheAt = 0;
+function evidenceImagePools() {
+  const now = Date.now();
+  if (_evidencePoolCache && (now - _evidencePoolCacheAt) < 30000) return _evidencePoolCache;
+  const pools = {};
+  EVIDENCE_IMAGE_DIRS.forEach((dir) => {
+    const buckets = { common: [], rare: [], legendary: [] };
+    try {
+      const p = path.join(__dirname, 'public', 'img', 'evidence-cards', dir);
+      fs.readdirSync(p).forEach((f) => {
+        const m = /^Card-0*(\d+)\.(png|jpe?g|webp)$/i.exec(f);
+        if (!m) return;
+        const num = parseInt(m[1], 10);
+        const rr = evidenceRarityForNum(num);
+        buckets[rr.rarity].push({ num, rarity: rr.rarity, stars: rr.stars, imageUrl: '/Game/img/evidence-cards/' + dir + '/' + f });
+      });
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+    Object.keys(buckets).forEach((k) => buckets[k].sort((a, b) => a.num - b.num));
+    pools[dir] = buckets;
+  });
+  _evidencePoolCache = pools;
+  _evidencePoolCacheAt = now;
+  return pools;
+}
+
+function evidencePoolCounts() {
+  const pools = evidenceImagePools();
+  const out = {};
+  EVIDENCE_IMAGE_DIRS.forEach((dir) => {
+    const b = pools[dir] || { common: [], rare: [], legendary: [] };
+    out[dir] = { common: b.common.length, rare: b.rare.length, legendary: b.legendary.length };
+  });
+  return out;
+}
+
+/* แปลงเกรด -> rarity key ('legendary'=ชี้คนร้าย/'rare'/'common') ตามเปอร์เซ็นต์ที่กำหนด */
+function rollEvidenceRarityKey(grade) {
+  const r = Math.random();
+  if (grade === 'A') return r < 0.30 ? 'legendary' : (r < 0.80 ? 'rare' : 'common');
+  if (grade === 'B') return r < 0.20 ? 'legendary' : (r < 0.50 ? 'rare' : 'common');
+  return r < 0.20 ? 'rare' : 'common'; // C ลงไป: ไม่มีชี้คนร้าย
+}
+
+/* โฟลเดอร์รูปของผู้ต้องสงสัยตาม config คดี (fallback = suspect-(idx+1)) */
+function evidenceImageDirForSuspect(space, suspectIndex) {
+  const def = EVIDENCE_IMAGE_DIRS[suspectIndex] || EVIDENCE_IMAGE_DIRS[0];
+  try {
+    const cid = String((space && space.caseId) || '1');
+    const cfg = loadEvidenceCards();
+    const cse = cfg.cases && cfg.cases[cid];
+    const s = cse && cse.suspects && cse.suspects[suspectIndex];
+    if (s && s.imageDir && EVIDENCE_IMAGE_DIRS.indexOf(s.imageDir) >= 0) return s.imageDir;
+  } catch (e) { /* ใช้ default */ }
+  return def;
+}
+
+/* เลือกการ์ด 1 ใบจากพูลของผู้ต้องสงสัยตามเกรด (มี fallback ถ้า rarity นั้นไม่มีรูป) */
+function pickEvidenceCardForSuspect(space, suspectIndex, grade) {
+  const imageDir = evidenceImageDirForSuspect(space, suspectIndex);
+  const pools = evidenceImagePools();
+  const buckets = pools[imageDir] || pools[EVIDENCE_IMAGE_DIRS[0]] || { common: [], rare: [], legendary: [] };
+  let want = rollEvidenceRarityKey(grade || 'C');
+  let pool = buckets[want];
+  if (!pool || !pool.length) {
+    const tryOrder = ['common', 'rare', 'legendary'];
+    for (const k of tryOrder) { if (buckets[k] && buckets[k].length) { pool = buckets[k]; want = k; break; } }
+  }
+  if (!pool || !pool.length) return null;
+  const pick = pool[Math.floor(Math.random() * pool.length)];
+  return { rarity: pick.rarity, stars: pick.stars, num: pick.num, imageUrl: pick.imageUrl };
+}
+
+function evidenceGradeFromPct(avgPct) {
+  return avgPct >= 80 ? 'A' : avgPct >= 60 ? 'B' : 'C';
+}
+
+/* คะแนนดิบของผู้เล่นต่อ gameType (ใช้กรณี normalize เทียบ best) */
+function evidencePlayerRawScore(space, p, gameType) {
+  switch (gameType) {
+    case 'gauntlet':
+    case 'jump_survive': return Math.max(0, p.gauntletScore | 0);
+    case 'space_shooter': return Math.max(0, p.spaceShooterScore | 0);
+    case 'balloon_boss': return Math.max(0, p.balloonBossScore | 0);
+    default:
+      return Math.max(0, p.gauntletScore | 0) || Math.max(0, p.spaceShooterScore | 0) || Math.max(0, p.balloonBossScore | 0);
+  }
+}
+
+/* เกรดของรอบ (A/B/C) — quiz ใช้ % สัมบูรณ์, เกมอื่น normalize เทียบ best แล้วเฉลี่ยทั้งห้อง */
+function computeRunGradeForEvidence(space) {
+  try {
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const gameType = md && md.gameType;
+    if (gameType === 'gauntlet' || gameType === 'jump_survive') {
+      return buildGauntletCrownMissionPayload(space).grade || 'C';
+    }
+    /* เกมจริงหรือไม่ (quiz TF): เฉลี่ย % ของคะแนนเทียบเต็ม (จำนวนข้อ × แต้มต่อข้อ) */
+    if (gameType === 'quiz' && space.quizSession && space.quizSession.players) {
+      const total = (space.quizSession.questions || []).length * QUIZ_TF_POINTS_PER_CORRECT;
+      const ids = Object.keys(space.quizSession.players);
+      if (total > 0 && ids.length) {
+        const avgPct = ids.reduce((s, id) => {
+          const sc = Math.max(0, Number(space.quizSession.players[id].score) || 0);
+          return s + Math.min(100, (sc / total) * 100);
+        }, 0) / ids.length;
+        return evidenceGradeFromPct(avgPct);
+      }
+    }
+    const peers = [...space.peers.values()];
+    if (!peers.length) return 'C';
+    const raw = peers.map((p) => evidencePlayerRawScore(space, p, gameType));
+    const max = Math.max(1, ...raw);
+    const avgPct = raw.reduce((s, v) => s + (v / max) * 100, 0) / raw.length;
+    return evidenceGradeFromPct(avgPct);
+  } catch (e) { return 'C'; }
+}
+
+/* card object ที่เก็บในแฟ้มหลักฐาน */
+function sanitizeStoredEvidenceCard(c) {
+  if (!c || typeof c !== 'object') return null;
+  let rar = String(c.rarity || 'common').toLowerCase();
+  if (EVIDENCE_RARITIES.indexOf(rar) < 0) rar = 'common';
+  const img = String(c.imageUrl || '').slice(0, 400);
+  if (!img) return null;
+  let stars = Math.floor(Number(c.stars));
+  if (!(stars >= 1 && stars <= 3)) stars = rar === 'legendary' ? 3 : rar === 'rare' ? 2 : 1;
+  let num = Math.floor(Number(c.num));
+  if (!(num >= 1)) num = 0;
+  return { rarity: rar, stars, num, imageUrl: img };
+}
+
+function sanitizeEvidenceCases(obj) {
+  const src = (obj && obj.cases) ? obj.cases : {};
+  const out = {};
+  for (let i = 1; i <= EVIDENCE_CASE_COUNT; i++) {
+    const cid = String(i);
+    const cse = src[cid] || {};
+    const suspects = Array.isArray(cse.suspects) ? cse.suspects : [];
+    const outSus = [];
+    for (let si = 0; si < 3; si++) {
+      const s = suspects[si] || {};
+      let dir = String(s.imageDir || EVIDENCE_IMAGE_DIRS[si] || EVIDENCE_IMAGE_DIRS[0]);
+      if (EVIDENCE_IMAGE_DIRS.indexOf(dir) < 0) dir = EVIDENCE_IMAGE_DIRS[si] || EVIDENCE_IMAGE_DIRS[0];
+      outSus.push({
+        linkName: String(s.linkName || ('ผู้ต้องสงสัย ' + (si + 1))).slice(0, 60),
+        imageDir: dir,
+      });
+    }
+    out[cid] = { suspects: outSus };
+  }
+  return { cases: out };
+}
+
+function loadEvidenceCards() {
+  try {
+    if (fs.existsSync(EVIDENCE_CARDS_PATH)) {
+      return sanitizeEvidenceCases(JSON.parse(fs.readFileSync(EVIDENCE_CARDS_PATH, 'utf8')));
+    }
+  } catch (e) { /* ignore — คืนค่า default */ }
+  return sanitizeEvidenceCases({});
+}
+
+/** รายการรูปการ์ดที่มีจริงในแต่ละโฟลเดอร์ผู้ต้องสงสัย (ไว้ให้ Admin เลือกรูป) */
+function listEvidenceCardImages() {
+  const out = { 'suspect-1': [], 'suspect-2': [], 'suspect-3': [] };
+  Object.keys(out).forEach((dir) => {
+    try {
+      const p = path.join(__dirname, 'public', 'img', 'evidence-cards', dir);
+      const files = fs.readdirSync(p)
+        .filter((f) => /\.(png|jpe?g|webp)$/i.test(f))
+        .sort((a, b) => a.localeCompare(b, undefined, { numeric: true }));
+      out[dir] = files.map((f) => '/Game/img/evidence-cards/' + dir + '/' + f);
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+  });
+  return out;
+}
+
+function saveEvidenceCards(d) {
+  try {
+    const clean = sanitizeEvidenceCases(d);
+    fs.writeFileSync(EVIDENCE_CARDS_PATH, JSON.stringify(clean, null, 2), 'utf8');
+    return { ok: true, cases: clean.cases };
+  } catch (e) {
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') err = 'ไม่มีสิทธิ์เขียนไฟล์ evidence-cards.json (chown เป็น user ที่รันเกม)';
+    else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function loadQuizSettings() {
+  try {
+    if (fs.existsSync(QUIZ_SETTINGS_PATH)) {
+      const j = JSON.parse(fs.readFileSync(QUIZ_SETTINGS_PATH, 'utf8'));
+      const d = defaultQuizSettings();
+      const questions = Array.isArray(j.questions) ? j.questions : [];
+      const carryQuestions = sanitizeCarryQuestions(j.carryQuestions);
+      const battleQuizMcq = sanitizeBattleQuizMcq(j.battleQuizMcq);
+      const carryMapPanelTheme = sanitizeCarryMapPanelTheme(j.carryMapPanelTheme);
+      const quizMapPanelTheme = sanitizeCarryMapPanelTheme(j.quizMapPanelTheme);
+      const carryEmbedCountdownTheme = sanitizeCarryEmbedCountdownTheme(j.carryEmbedCountdownTheme);
+      const carryChoicePlaqueThemes = Array.isArray(j.carryChoicePlaqueThemes) && j.carryChoicePlaqueThemes.length
+        ? sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueThemes)
+        : sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueTheme);
+      const carryChoicePlaqueTheme = carryChoicePlaqueThemes[0];
+      const carryChoicePlaqueMapScale = clampCarryChoicePlaqueMapScale(j.carryChoicePlaqueMapScale, d.carryChoicePlaqueMapScale);
+      const carryWalkSpeedMultForMapId = sanitizeCarryWalkSpeedMultForMapId(j.carryWalkSpeedMultForMapId);
+      let carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(j.carryWalkSpeedMult);
+      if (!carryWalkSpeedMultForMapId) carryWalkSpeedMult = null;
+      else if (carryWalkSpeedMult == null) carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(1.42);
+      const out = {
+        readMs: clampQuizMs(j.readMs, d.readMs),
+        answerMs: clampQuizMs(j.answerMs, d.answerMs),
+        betweenMs: clampQuizBetweenMs(j.betweenMs, d.betweenMs),
+        carryReadMs: clampQuizBetweenMs(j.carryReadMs, d.carryReadMs),
+        carryAnswerMs: clampQuizMs(j.carryAnswerMs, d.carryAnswerMs),
+        carrySessionLength: clampCarrySessionLength(j.carrySessionLength, d.carrySessionLength),
+        carryMapPanelTheme,
+        quizMapPanelTheme,
+        carryEmbedCountdownTheme,
+        carryChoicePlaqueThemes,
+        carryChoicePlaqueTheme,
+        carryChoicePlaqueMapScale,
+        carryWalkSpeedMultForMapId,
+        carryWalkSpeedMult,
+        quizRoundQuestionCount: clampQuizRoundQuestionCount(j.quizRoundQuestionCount, d.quizRoundQuestionCount),
+        questions,
+        carryQuestions,
+        battleQuizMcq,
+        specialQuizSets: sanitizeSpecialQuizSets(j.specialQuizSets),
+      };
+      return mergeQuizCarryFromMirrorIfSet(out);
+    }
+  } catch (e) { console.error('loadQuizSettings', e.message); }
+  return mergeQuizCarryFromMirrorIfSet(defaultQuizSettings());
+}
+
+const GAUNTLET_DEFAULT_TICK_MS = 220;
+const GAUNTLET_DEFAULT_JUMP_TICKS = 16;
+const GAUNTLET_DEFAULT_TIME_LIMIT_SEC = 0;
+/** รอบสวิงซ้าย-ขวา ต่อวินาที (Stack) — ค่าน้อย = ช้า · cycles per second of horizontal swing */
+const STACK_SWING_HZ_DEFAULT = 0.55;
+
+function defaultGameTiming() {
+  return {
+    gauntletTickMs: GAUNTLET_DEFAULT_TICK_MS,
+    gauntletJumpTicks: GAUNTLET_DEFAULT_JUMP_TICKS,
+    gauntletTimeLimitSec: GAUNTLET_DEFAULT_TIME_LIMIT_SEC,
+    ...defaultGauntletVisuals(),
+    stackSwingHz: STACK_SWING_HZ_DEFAULT,
+    stackBlockWidthTiles: null,
+    /** กระโดดให้รอด: ความสูงกระโดด = ทวีคูณ × ความสูงตัวละคร (tile) — 0.5–4 ค่าเริ่ม 1.5 */
+    jumpSurviveJumpHeightMult: 1.5,
+    /** จำกัดเวลารอบภารกิจ/มินิเกมกระโดดขึ้นแท่น (วินาที) — 0 = ไคลเอนต์ใช้ 60 วิ; ไม่ใช่ค่าเดียวกับพรมแดง */
+    jumpSurviveMissionTimeSec: 0,
+    /** รูปแพลตฟอร์ม jump_survive ช่อง 1–3 — ว่าง = ไคลเอนต์วาด cyan; w/h 0 = ใช้ขนาดไทล์ */
+    jumpSurvivePlatformTiles: [
+      { url: '', w: 0, h: 0 },
+      { url: '', w: 0, h: 0 },
+      { url: '', w: 0, h: 0 },
+    ],
+    /** Stack ภารกิจ Tower (mnn93hpi): จำกัดเวลารอบ (วินาที) — ไคลเอนต์ใช้เมื่อเล่นภารกิจ */
+    stackTowerMissionTimeSec: 90,
+    /** Stack ภารกิจ Tower: ทีมพลาดได้กี่ครั้งก่อนจบ (ไม่รีเซ็ตหอ) */
+    stackTeamMissesMax: 3,
+    /** Stack ภารกิจ Tower: จำนวนชั้นสำเร็จ (ไม่คิดคอมโบ) ที่รวมแล้วได้ Progress 100% — แต่ละชั้น +100/N %; คอมโบ ×2 ของชั้นนั้น */
+    stackTowerProgressBlocks: 50,
+    stackBlockNormalImageUrls: ['', '', '', '', '', ''],
+    stackBlockHeavyImageUrls: ['', '', '', '', '', ''],
+    /** โอกาสใช้รูป “ใหญ่” ต่อการปล่อยหนึ่งครั้ง (0–100) — ถ้าไม่มี URL ใหญ่ช่องนั้น = ใช้ปกติ */
+    stackHeavyBlockPercent: 35,
+    /** ยิงยานอวกาศ / space_shooter: จำกัดเวลารอบ (วินาที) — 0 = ไคลเอนต์ใช้ค่าเริ่ม 90; แมป spaceShooterTimeSec > 0 ทับ */
+    spaceShooterMissionTimeSec: 0,
+    spaceShooterShipImageUrls: ['', '', '', '', '', ''],
+    spaceShooterAsteroidSpriteUrls: [],
+    spaceShooterAsteroidExplodeFrameMs: 70,
+    /** ระยะห่างเกิดอุกาบาต (ms) — ค่าน้อย = ถี่ขึ้น; แมป spaceShooterAsteroidIntervalMs ≥200 ทับ */
+    spaceShooterAsteroidIntervalMs: 1040,
+    spaceShooterShipDamageOverlayUrls: ['', '', ''],
+    /** balloon_boss / Mega Virus — 0 = ไคลเอนต์ใช้ 120 วิเมื่อแมปไม่ตั้ง balloonBossTimeSec */
+    balloonBossMissionTimeSec: 0,
+    balloonBossBossImageUrl: '',
+    balloonBossPlayerBalloonImageUrls: ['', '', '', '', '', ''],
+    /** กรอบฟองรอบผู้เล่น / ลูกโป่ง fallback เริ่มต้น — Artboard 9 (วง cyan +หาง) */
+    balloonBossPlayerBalloonFallbackUrl: '/Game/img/MegaVirus/Artboard 9.png',
+  };
+}
+
+function clampStackSwingHz(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return STACK_SWING_HZ_DEFAULT;
+  return Math.max(0.08, Math.min(2.8, v));
+}
+
+/** ความกว้างบล็อก Stack เป็น tile — null = ให้ client คำนวณจากพื้นที่ลงบนแผนที่ */
+function clampStackBlockWidthTiles(n) {
+  if (n === null || n === undefined || n === '') return null;
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return null;
+  return Math.round(Math.max(0.85, Math.min(3.2, v)) * 100) / 100;
+}
+
+function clampStackTowerMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 90;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+function clampStackTeamMissesMax(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 3;
+  return Math.max(1, Math.min(20, Math.floor(v)));
+}
+
+function clampStackTowerProgressBlocks(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 50;
+  return Math.max(1, Math.min(500, Math.floor(v)));
+}
+
+/** Stack: รูปบล็อกต่อที่นั่ง 1–6 (ปกติ / ใหญ่) — ว่าง = ไคลเอนต์วาดสีเดิม */
+function normalizeStackBlockSixImageUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < 6; i++) {
+    out.push(sanitizeGauntletAssetUrl(arr[i]));
+  }
+  return out;
+}
+
+function clampStackHeavyBlockPercent(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 35;
+  return Math.max(0, Math.min(100, Math.floor(v)));
+}
+
+function clampJumpSurviveJumpHeightMult(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 1.5;
+  return Math.round(Math.max(0.5, Math.min(4, v)) * 100) / 100;
+}
+
+/** กระโดดขึ้นแท่น / ภารกิจ Jumper: จำกัดเวลารอบ (วินาที) — 0 = ไม่ตั้งในไฟล์ ให้ไคลเอนต์ใช้ค่าเริ่ม 60; ค่าอื่น = 10–7200 */
+function clampJumpSurviveMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+/** กระโดดให้รอด: รูปแพลตฟอร์ม 3 ช่อง — url ว่าง = ไคลเอนต์วาด cyan; w/h ≤0 = ใช้ขนาดไทล์ตอนรัน */
+function normalizeJumpSurvivePlatformTilesFromTiming(val, legacyTileUrl) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = [];
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const legacy = typeof legacyTileUrl === 'string' ? sanitizeGauntletAssetUrl(legacyTileUrl) : '';
+  const out = [];
+  for (let i = 0; i < 3; i++) {
+    const o = arr[i];
+    const obj = o && typeof o === 'object' ? o : {};
+    let url = sanitizeGauntletAssetUrl(typeof obj.url === 'string' ? obj.url : '');
+    if (i === 0 && !url && legacy) url = legacy;
+    let ww = Number(obj.w);
+    let hh = Number(obj.h);
+    if (!Number.isFinite(ww) || ww <= 0) ww = 0;
+    else ww = Math.max(8, Math.min(4096, Math.round(ww)));
+    if (!Number.isFinite(hh) || hh <= 0) hh = 0;
+    else hh = Math.max(8, Math.min(4096, Math.round(hh)));
+    out.push({ url, w: ww, h: hh });
+  }
+  return out;
+}
+
+function clampSpaceShooterMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+/** รูปยาน space_shooter ช่อง 1–6 (ตรงกับ spawn slot บนแมป) — ว่าง = ไคลเอนต์วาดยานเวกเตอร์ */
+function normalizeSpaceShooterShipImageUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < 6; i++) {
+    out.push(sanitizeGauntletAssetUrl(arr[i]));
+  }
+  return out;
+}
+
+/** อุกาบาต space_shooter: บรรทัดแรก = ตอนตก, ถัดไป = เฟรมแตก (สูงสุด 32 URL) */
+function normalizeSpaceShooterAsteroidSpriteUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < arr.length && out.length < 32; i++) {
+    const u = sanitizeGauntletAssetUrl(arr[i]);
+    if (u) out.push(u);
+  }
+  return out;
+}
+
+function clampSpaceShooterAsteroidExplodeFrameMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 70;
+  return Math.max(30, Math.min(500, Math.round(v)));
+}
+
+const SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT = 1040;
+function clampSpaceShooterAsteroidIntervalMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT;
+  return Math.max(200, Math.min(10000, Math.floor(v)));
+}
+
+/** รูปทับยานเมื่อชนอุกาบาต ครั้งที่ 1–3 (ภารกิจ Violent Crime) */
+function normalizeSpaceShooterShipDamageOverlayUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = ['', '', ''];
+  for (let i = 0; i < 3; i++) {
+    out[i] = sanitizeGauntletAssetUrl(arr[i]);
+  }
+  return out;
+}
+
+function clampGauntletTickMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return GAUNTLET_DEFAULT_TICK_MS;
+  return Math.max(80, Math.min(800, Math.floor(v)));
+}
+
+function clampGauntletJumpTicks(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return GAUNTLET_DEFAULT_JUMP_TICKS;
+  return Math.max(4, Math.min(40, Math.floor(v)));
+}
+
+/** 0 = ไม่จำกัดเวลา · ค่าอื่น = วินาที (สูงสุด 2 ชม.) */
+function clampGauntletTimeLimitSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+function defaultGauntletVisuals() {
+  return {
+    gauntletLaneImageUrls: [],
+    gauntletLaserTopUrl: '',
+    gauntletLaserBottomUrl: '',
+    gauntletLaserLineUrl: '',
+    gauntletLaserFillColor: 'rgba(140,230,255,0.42)',
+    gauntletLaserStrokeColor: 'rgba(255,220,255,0.9)',
+    gauntletLaserLineWidthPx: 2,
+  };
+}
+
+/** ช่องว่างใน path (เช่น Artboard 9.png) — encode เป็น %20 ให้ nginx/เบราว์เซอร์โหลดได้ */
+function encodeSpacesInAssetUrlPath(t) {
+  const s = String(t || '');
+  const q = s.indexOf('?');
+  const pathPart = q === -1 ? s : s.slice(0, q);
+  const query = q === -1 ? '' : s.slice(q);
+  return pathPart.replace(/ /g, '%20') + query;
+}
+
+/** รูปเสิร์ฟที่ `/Game/img/...` (alias ไป `public/img`) — อย่าใส่ `/Game/public/img/` จาก path บนดิสก์ */
+function normalizeGameAssetUrlForWeb(t) {
+  let s = String(t || '');
+  s = s.replace(/^\/Game\/public\/img\//i, '/Game/img/');
+  s = s.replace(/^Game\/public\/img\//i, 'Game/img/');
+  return s;
+}
+
+/** ลด %2520 → %20 → space (สูงสุด 2 รอบ) — กันเข้ารหัสซ้ำจากบันทึก/คัดลอก URL */
+function decodeAssetUrlPercentRuns(t) {
+  let s = String(t || '');
+  const q = s.indexOf('?');
+  let base = q === -1 ? s : s.slice(0, q);
+  const query = q === -1 ? '' : s.slice(q);
+  for (let i = 0; i < 2; i += 1) {
+    try {
+      const d = decodeURIComponent(base);
+      if (d === base) break;
+      base = d;
+    } catch (e) {
+      break;
+    }
+  }
+  return base + query;
+}
+
+/** ช่อง Admin มักใส่แค่ …/Artboard ลืม 9.png — ชี้ไป Artboard%209.png */
+function fixBareMegaVirusArtboardUrl(t) {
+  const s = String(t || '').trim().replace(/\/+$/, '');
+  if (/^\/Game\/img\/MegaVirus\/Artboard$/i.test(s)) return '/Game/img/MegaVirus/Artboard%209.png';
+  if (/^Game\/img\/MegaVirus\/Artboard$/i.test(s)) return '/Game/img/MegaVirus/Artboard%209.png';
+  return t;
+}
+
+function sanitizeGauntletAssetUrl(s) {
+  const t = fixBareMegaVirusArtboardUrl(
+    normalizeGameAssetUrlForWeb(decodeAssetUrlPercentRuns(String(s || '').trim())).replace(/\/+$/, '')
+  );
+  if (!t || t.length > 500) return '';
+  /** ห้ามแท็บ/บรรทัดใหม่/ตัวอักษรอันตราย — อนุญาตช่องว่าง (U+0020) ในชื่อไฟล์ */
+  if (/[\t\n\r\x00-\x08\x0b\x0c\x0e-\x1f<>"'`]/.test(t)) return '';
+  /** placeholder จาก Admin เช่น /Game/img/....png — ไม่ใช่ path จริง */
+  if (/\.{4,}/.test(t)) return '';
+  if (/^https?:\/\//i.test(t)) return encodeSpacesInAssetUrlPath(t);
+  if (t.startsWith('/')) return encodeSpacesInAssetUrlPath(t);
+  /** Admin มักใส่แบบไม่มี slash นำหน้า — ให้เทียบเท่า /Game/... บน nginx */
+  if (/^Game\//i.test(t)) return encodeSpacesInAssetUrlPath(`/${t.replace(/^\/+/, '')}`);
+  return '';
+}
+
+function clampGauntletLaserColor(s, def) {
+  const t = String(s || '').trim().slice(0, 100);
+  if (!t) return def;
+  if (/[<>"'`]/.test(t)) return def;
+  return t;
+}
+
+function clampGauntletLaserLineWidthPx(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 2;
+  return Math.max(0, Math.min(24, Math.round(v)));
+}
+
+function normalizeGauntletVisualsFromRequest(d) {
+  const def = defaultGauntletVisuals();
+  if (!d || typeof d !== 'object') return { ...def };
+  let laneArr = d.gauntletLaneImageUrls;
+  if (typeof laneArr === 'string') laneArr = laneArr.split(/[\n\r]+/);
+  if (!Array.isArray(laneArr)) laneArr = [];
+  const gauntletLaneImageUrls = [];
+  for (let i = 0; i < laneArr.length && gauntletLaneImageUrls.length < 24; i++) {
+    const u = sanitizeGauntletAssetUrl(laneArr[i]);
+    if (u) gauntletLaneImageUrls.push(u);
+  }
+  return {
+    gauntletLaneImageUrls,
+    gauntletLaserTopUrl: sanitizeGauntletAssetUrl(d.gauntletLaserTopUrl),
+    gauntletLaserBottomUrl: sanitizeGauntletAssetUrl(d.gauntletLaserBottomUrl),
+    gauntletLaserLineUrl: sanitizeGauntletAssetUrl(d.gauntletLaserLineUrl),
+    gauntletLaserFillColor: clampGauntletLaserColor(d.gauntletLaserFillColor, def.gauntletLaserFillColor),
+    gauntletLaserStrokeColor: clampGauntletLaserColor(d.gauntletLaserStrokeColor, def.gauntletLaserStrokeColor),
+    gauntletLaserLineWidthPx: clampGauntletLaserLineWidthPx(d.gauntletLaserLineWidthPx),
+  };
+}
+
+function getGauntletVisualsForClient() {
+  const r = runtimeGameTiming;
+  const d = defaultGauntletVisuals();
+  return {
+    gauntletLaneImageUrls: Array.isArray(r.gauntletLaneImageUrls) ? r.gauntletLaneImageUrls : d.gauntletLaneImageUrls,
+    gauntletLaserTopUrl: r.gauntletLaserTopUrl || '',
+    gauntletLaserBottomUrl: r.gauntletLaserBottomUrl || '',
+    gauntletLaserLineUrl: r.gauntletLaserLineUrl || '',
+    gauntletLaserFillColor: r.gauntletLaserFillColor != null ? r.gauntletLaserFillColor : d.gauntletLaserFillColor,
+    gauntletLaserStrokeColor: r.gauntletLaserStrokeColor != null ? r.gauntletLaserStrokeColor : d.gauntletLaserStrokeColor,
+    gauntletLaserLineWidthPx: r.gauntletLaserLineWidthPx != null ? r.gauntletLaserLineWidthPx : d.gauntletLaserLineWidthPx,
+  };
+}
+
+function loadGameTiming() {
+  try {
+    if (fs.existsSync(GAME_TIMING_PATH)) {
+      const j = JSON.parse(fs.readFileSync(GAME_TIMING_PATH, 'utf8'));
+      const vis = normalizeGauntletVisualsFromRequest(j);
+      return {
+        gauntletTickMs: clampGauntletTickMs(j.gauntletTickMs),
+        gauntletJumpTicks: clampGauntletJumpTicks(j.gauntletJumpTicks),
+        gauntletTimeLimitSec: clampGauntletTimeLimitSec(j.gauntletTimeLimitSec),
+        ...vis,
+        stackSwingHz: Object.prototype.hasOwnProperty.call(j, 'stackSwingHz')
+          ? clampStackSwingHz(j.stackSwingHz)
+          : STACK_SWING_HZ_DEFAULT,
+        stackBlockWidthTiles: Object.prototype.hasOwnProperty.call(j, 'stackBlockWidthTiles')
+          ? clampStackBlockWidthTiles(j.stackBlockWidthTiles)
+          : null,
+        stackTowerMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'stackTowerMissionTimeSec')
+          ? clampStackTowerMissionTimeSec(j.stackTowerMissionTimeSec)
+          : 90,
+        stackTeamMissesMax: Object.prototype.hasOwnProperty.call(j, 'stackTeamMissesMax')
+          ? clampStackTeamMissesMax(j.stackTeamMissesMax)
+          : 3,
+        stackTowerProgressBlocks: Object.prototype.hasOwnProperty.call(j, 'stackTowerProgressBlocks')
+          ? clampStackTowerProgressBlocks(j.stackTowerProgressBlocks)
+          : 50,
+        stackBlockNormalImageUrls: normalizeStackBlockSixImageUrls(j.stackBlockNormalImageUrls),
+        stackBlockHeavyImageUrls: normalizeStackBlockSixImageUrls(j.stackBlockHeavyImageUrls),
+        stackHeavyBlockPercent: Object.prototype.hasOwnProperty.call(j, 'stackHeavyBlockPercent')
+          ? clampStackHeavyBlockPercent(j.stackHeavyBlockPercent)
+          : 35,
+        jumpSurviveJumpHeightMult: Object.prototype.hasOwnProperty.call(j, 'jumpSurviveJumpHeightMult')
+          ? clampJumpSurviveJumpHeightMult(j.jumpSurviveJumpHeightMult)
+          : 1.5,
+        jumpSurviveMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'jumpSurviveMissionTimeSec')
+          ? clampJumpSurviveMissionTimeSec(j.jumpSurviveMissionTimeSec)
+          : 0,
+        jumpSurvivePlatformTiles: normalizeJumpSurvivePlatformTilesFromTiming(
+          j.jumpSurvivePlatformTiles,
+          j.jumpSurvivePlatformTileUrl,
+        ),
+        spaceShooterMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'spaceShooterMissionTimeSec')
+          ? clampSpaceShooterMissionTimeSec(j.spaceShooterMissionTimeSec)
+          : 0,
+        spaceShooterShipImageUrls: normalizeSpaceShooterShipImageUrls(j.spaceShooterShipImageUrls),
+        spaceShooterAsteroidSpriteUrls: normalizeSpaceShooterAsteroidSpriteUrls(j.spaceShooterAsteroidSpriteUrls),
+        spaceShooterAsteroidExplodeFrameMs: Object.prototype.hasOwnProperty.call(j, 'spaceShooterAsteroidExplodeFrameMs')
+          ? clampSpaceShooterAsteroidExplodeFrameMs(j.spaceShooterAsteroidExplodeFrameMs)
+          : 70,
+        spaceShooterAsteroidIntervalMs: Object.prototype.hasOwnProperty.call(j, 'spaceShooterAsteroidIntervalMs')
+          ? clampSpaceShooterAsteroidIntervalMs(j.spaceShooterAsteroidIntervalMs)
+          : SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT,
+        spaceShooterShipDamageOverlayUrls: normalizeSpaceShooterShipDamageOverlayUrls(j.spaceShooterShipDamageOverlayUrls),
+        balloonBossMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'balloonBossMissionTimeSec')
+          ? clampSpaceShooterMissionTimeSec(j.balloonBossMissionTimeSec)
+          : 0,
+        balloonBossBossImageUrl: Object.prototype.hasOwnProperty.call(j, 'balloonBossBossImageUrl')
+          ? sanitizeGauntletAssetUrl(j.balloonBossBossImageUrl)
+          : '',
+        balloonBossPlayerBalloonImageUrls: normalizeStackBlockSixImageUrls(j.balloonBossPlayerBalloonImageUrls),
+        balloonBossPlayerBalloonFallbackUrl: Object.prototype.hasOwnProperty.call(j, 'balloonBossPlayerBalloonFallbackUrl')
+          ? sanitizeGauntletAssetUrl(j.balloonBossPlayerBalloonFallbackUrl)
+          : '',
+      };
+    }
+  } catch (e) { console.error('loadGameTiming', e.message); }
+  return defaultGameTiming();
+}
+
+let runtimeGameTiming = loadGameTiming();
+
+function getGauntletTickMs() {
+  return runtimeGameTiming.gauntletTickMs;
+}
+
+function getGauntletJumpTicks() {
+  return runtimeGameTiming.gauntletJumpTicks;
+}
+
+function getGauntletTimeLimitSec() {
+  return runtimeGameTiming.gauntletTimeLimitSec || 0;
+}
+
+function saveGameTimingToFile(d) {
+  try {
+    const dir = path.dirname(GAME_TIMING_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    const prev = { ...runtimeGameTiming };
+    const vis = normalizeGauntletVisualsFromRequest(d);
+    const stackHz = Object.prototype.hasOwnProperty.call(d, 'stackSwingHz')
+      ? clampStackSwingHz(d.stackSwingHz)
+      : clampStackSwingHz(prev.stackSwingHz != null ? prev.stackSwingHz : STACK_SWING_HZ_DEFAULT);
+    const stackBlockW = Object.prototype.hasOwnProperty.call(d, 'stackBlockWidthTiles')
+      ? clampStackBlockWidthTiles(d.stackBlockWidthTiles)
+      : (Object.prototype.hasOwnProperty.call(prev, 'stackBlockWidthTiles')
+        ? prev.stackBlockWidthTiles
+        : null);
+    const prevMult = Object.prototype.hasOwnProperty.call(prev, 'jumpSurviveJumpHeightMult')
+      ? prev.jumpSurviveJumpHeightMult
+      : 1.5;
+    const jumpMult = Object.prototype.hasOwnProperty.call(d, 'jumpSurviveJumpHeightMult')
+      ? clampJumpSurviveJumpHeightMult(d.jumpSurviveJumpHeightMult)
+      : clampJumpSurviveJumpHeightMult(prevMult);
+    const prevJumpMissionSec = Object.prototype.hasOwnProperty.call(prev, 'jumpSurviveMissionTimeSec')
+      ? prev.jumpSurviveMissionTimeSec
+      : 0;
+    const jumpMissionSec = Object.prototype.hasOwnProperty.call(d, 'jumpSurviveMissionTimeSec')
+      ? clampJumpSurviveMissionTimeSec(d.jumpSurviveMissionTimeSec)
+      : clampJumpSurviveMissionTimeSec(prevJumpMissionSec);
+    const prevJumpTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+      prev.jumpSurvivePlatformTiles,
+      prev.jumpSurvivePlatformTileUrl,
+    );
+    let jumpSurvivePlatformTiles;
+    if (Object.prototype.hasOwnProperty.call(d, 'jumpSurvivePlatformTiles')) {
+      jumpSurvivePlatformTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+        d.jumpSurvivePlatformTiles,
+        d.jumpSurvivePlatformTileUrl,
+      );
+    } else if (Object.prototype.hasOwnProperty.call(d, 'jumpSurvivePlatformTileUrl')) {
+      jumpSurvivePlatformTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+        [
+          { url: d.jumpSurvivePlatformTileUrl, w: 0, h: 0 },
+          prevJumpTiles[1],
+          prevJumpTiles[2],
+        ],
+        '',
+      );
+    } else {
+      jumpSurvivePlatformTiles = prevJumpTiles;
+    }
+    const prevSpaceShooterMissionSec = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterMissionTimeSec')
+      ? prev.spaceShooterMissionTimeSec
+      : 0;
+    const spaceShooterMissionSec = Object.prototype.hasOwnProperty.call(d, 'spaceShooterMissionTimeSec')
+      ? clampSpaceShooterMissionTimeSec(d.spaceShooterMissionTimeSec)
+      : clampSpaceShooterMissionTimeSec(prevSpaceShooterMissionSec);
+    const prevShipUrls = Array.isArray(prev.spaceShooterShipImageUrls)
+      ? normalizeSpaceShooterShipImageUrls(prev.spaceShooterShipImageUrls)
+      : normalizeSpaceShooterShipImageUrls([]);
+    const spaceShooterShipImageUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterShipImageUrls')
+      ? normalizeSpaceShooterShipImageUrls(d.spaceShooterShipImageUrls)
+      : prevShipUrls;
+    const prevAstUrls = Array.isArray(prev.spaceShooterAsteroidSpriteUrls)
+      ? normalizeSpaceShooterAsteroidSpriteUrls(prev.spaceShooterAsteroidSpriteUrls)
+      : [];
+    const spaceShooterAsteroidSpriteUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidSpriteUrls')
+      ? normalizeSpaceShooterAsteroidSpriteUrls(d.spaceShooterAsteroidSpriteUrls)
+      : prevAstUrls;
+    const prevAstFms = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterAsteroidExplodeFrameMs')
+      ? prev.spaceShooterAsteroidExplodeFrameMs
+      : 70;
+    const spaceShooterAsteroidExplodeFrameMs = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidExplodeFrameMs')
+      ? clampSpaceShooterAsteroidExplodeFrameMs(d.spaceShooterAsteroidExplodeFrameMs)
+      : clampSpaceShooterAsteroidExplodeFrameMs(prevAstFms);
+    const prevAstIv = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterAsteroidIntervalMs')
+      ? prev.spaceShooterAsteroidIntervalMs
+      : SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT;
+    const spaceShooterAsteroidIntervalMs = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidIntervalMs')
+      ? clampSpaceShooterAsteroidIntervalMs(d.spaceShooterAsteroidIntervalMs)
+      : clampSpaceShooterAsteroidIntervalMs(prevAstIv);
+    const prevDmg = Array.isArray(prev.spaceShooterShipDamageOverlayUrls)
+      ? normalizeSpaceShooterShipDamageOverlayUrls(prev.spaceShooterShipDamageOverlayUrls)
+      : normalizeSpaceShooterShipDamageOverlayUrls([]);
+    const spaceShooterShipDamageOverlayUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterShipDamageOverlayUrls')
+      ? normalizeSpaceShooterShipDamageOverlayUrls(d.spaceShooterShipDamageOverlayUrls)
+      : prevDmg;
+    const prevBbMission = Object.prototype.hasOwnProperty.call(prev, 'balloonBossMissionTimeSec')
+      ? prev.balloonBossMissionTimeSec
+      : 0;
+    const balloonBossMissionTimeSec = Object.prototype.hasOwnProperty.call(d, 'balloonBossMissionTimeSec')
+      ? clampSpaceShooterMissionTimeSec(d.balloonBossMissionTimeSec)
+      : clampSpaceShooterMissionTimeSec(prevBbMission);
+    const prevBbBoss = Object.prototype.hasOwnProperty.call(prev, 'balloonBossBossImageUrl')
+      ? sanitizeGauntletAssetUrl(prev.balloonBossBossImageUrl)
+      : '';
+    const balloonBossBossImageUrl = Object.prototype.hasOwnProperty.call(d, 'balloonBossBossImageUrl')
+      ? sanitizeGauntletAssetUrl(d.balloonBossBossImageUrl)
+      : prevBbBoss;
+    const prevBbBalloons = Array.isArray(prev.balloonBossPlayerBalloonImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.balloonBossPlayerBalloonImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const balloonBossPlayerBalloonImageUrls = Object.prototype.hasOwnProperty.call(d, 'balloonBossPlayerBalloonImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.balloonBossPlayerBalloonImageUrls)
+      : prevBbBalloons;
+    const prevBbFb = Object.prototype.hasOwnProperty.call(prev, 'balloonBossPlayerBalloonFallbackUrl')
+      ? sanitizeGauntletAssetUrl(prev.balloonBossPlayerBalloonFallbackUrl)
+      : '';
+    const balloonBossPlayerBalloonFallbackUrl = Object.prototype.hasOwnProperty.call(d, 'balloonBossPlayerBalloonFallbackUrl')
+      ? sanitizeGauntletAssetUrl(d.balloonBossPlayerBalloonFallbackUrl)
+      : prevBbFb;
+    const prevStackTowerSec = Object.prototype.hasOwnProperty.call(prev, 'stackTowerMissionTimeSec')
+      ? prev.stackTowerMissionTimeSec
+      : 90;
+    const stackTowerMissionTimeSec = Object.prototype.hasOwnProperty.call(d, 'stackTowerMissionTimeSec')
+      ? clampStackTowerMissionTimeSec(d.stackTowerMissionTimeSec)
+      : clampStackTowerMissionTimeSec(prevStackTowerSec);
+    const prevStackMisses = Object.prototype.hasOwnProperty.call(prev, 'stackTeamMissesMax')
+      ? prev.stackTeamMissesMax
+      : 3;
+    const stackTeamMissesMax = Object.prototype.hasOwnProperty.call(d, 'stackTeamMissesMax')
+      ? clampStackTeamMissesMax(d.stackTeamMissesMax)
+      : clampStackTeamMissesMax(prevStackMisses);
+    const prevStackProgBlocks = Object.prototype.hasOwnProperty.call(prev, 'stackTowerProgressBlocks')
+      ? prev.stackTowerProgressBlocks
+      : 50;
+    const stackTowerProgressBlocks = Object.prototype.hasOwnProperty.call(d, 'stackTowerProgressBlocks')
+      ? clampStackTowerProgressBlocks(d.stackTowerProgressBlocks)
+      : clampStackTowerProgressBlocks(prevStackProgBlocks);
+    const prevStackNorm = Array.isArray(prev.stackBlockNormalImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.stackBlockNormalImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const prevStackHeavy = Array.isArray(prev.stackBlockHeavyImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.stackBlockHeavyImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const stackBlockNormalImageUrls = Object.prototype.hasOwnProperty.call(d, 'stackBlockNormalImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.stackBlockNormalImageUrls)
+      : prevStackNorm;
+    const stackBlockHeavyImageUrls = Object.prototype.hasOwnProperty.call(d, 'stackBlockHeavyImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.stackBlockHeavyImageUrls)
+      : prevStackHeavy;
+    const prevHeavyPct = Object.prototype.hasOwnProperty.call(prev, 'stackHeavyBlockPercent')
+      ? clampStackHeavyBlockPercent(prev.stackHeavyBlockPercent)
+      : 35;
+    const stackHeavyBlockPercent = Object.prototype.hasOwnProperty.call(d, 'stackHeavyBlockPercent')
+      ? clampStackHeavyBlockPercent(d.stackHeavyBlockPercent)
+      : prevHeavyPct;
+    const out = {
+      gauntletTickMs: clampGauntletTickMs(d.gauntletTickMs),
+      gauntletJumpTicks: clampGauntletJumpTicks(d.gauntletJumpTicks),
+      gauntletTimeLimitSec: clampGauntletTimeLimitSec(d.gauntletTimeLimitSec),
+      ...vis,
+      stackSwingHz: stackHz,
+      stackBlockWidthTiles: stackBlockW,
+      stackTowerMissionTimeSec,
+      stackTeamMissesMax,
+      stackTowerProgressBlocks,
+      stackBlockNormalImageUrls,
+      stackBlockHeavyImageUrls,
+      stackHeavyBlockPercent,
+      jumpSurviveJumpHeightMult: jumpMult,
+      jumpSurviveMissionTimeSec: jumpMissionSec,
+      jumpSurvivePlatformTiles,
+      spaceShooterMissionTimeSec: spaceShooterMissionSec,
+      spaceShooterShipImageUrls,
+      spaceShooterAsteroidSpriteUrls,
+      spaceShooterAsteroidExplodeFrameMs,
+      spaceShooterAsteroidIntervalMs,
+      spaceShooterShipDamageOverlayUrls,
+      balloonBossMissionTimeSec,
+      balloonBossBossImageUrl,
+      balloonBossPlayerBalloonImageUrls,
+      balloonBossPlayerBalloonFallbackUrl,
+    };
+    fs.writeFileSync(GAME_TIMING_PATH, JSON.stringify(out, null, 2), 'utf8');
+    runtimeGameTiming = out;
+    rescheduleAllGauntletTickers();
+    return { ok: true, ...out };
+  } catch (e) {
+    console.error('saveGameTimingToFile', e.message);
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') {
+      err = 'ไม่มีสิทธิ์เขียนไฟล์ game-timing.json (ให้ chown เป็น user ที่รันเกม เช่น www-data)';
+    } else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function migrateGauntletAssetsFromLegacyIfNeeded() {
+  try {
+    if (!fs.existsSync(GAUNTLET_ASSETS_DIR_LEGACY)) return;
+    if (!fs.existsSync(GAUNTLET_ASSETS_DIR)) fs.mkdirSync(GAUNTLET_ASSETS_DIR, { recursive: true });
+    const names = fs.readdirSync(GAUNTLET_ASSETS_DIR_LEGACY);
+    names.forEach((f) => {
+      if (!safeGauntletStoredFilename(f)) return;
+      const src = path.join(GAUNTLET_ASSETS_DIR_LEGACY, f);
+      const dest = path.join(GAUNTLET_ASSETS_DIR, f);
+      if (fs.existsSync(dest)) return;
+      try {
+        fs.copyFileSync(src, dest);
+        console.log('[gauntlet-assets] migrated', f, 'from data/ to public/img/gauntlet-assets/');
+      } catch (e) {
+        console.error('[gauntlet-assets] migrate failed', f, e && e.message);
+      }
+    });
+  } catch (e) {
+    console.error('migrateGauntletAssetsFromLegacyIfNeeded', e && e.message);
+  }
+}
+
+function ensureGauntletAssetsDir() {
+  if (!fs.existsSync(GAUNTLET_ASSETS_DIR)) fs.mkdirSync(GAUNTLET_ASSETS_DIR, { recursive: true });
+  migrateGauntletAssetsFromLegacyIfNeeded();
+}
+
+function loadGauntletAssetsMeta() {
+  try {
+    if (fs.existsSync(GAUNTLET_ASSETS_META_PATH)) {
+      const j = JSON.parse(fs.readFileSync(GAUNTLET_ASSETS_META_PATH, 'utf8'));
+      return j && typeof j === 'object' ? j : {};
+    }
+  } catch (e) { console.error('loadGauntletAssetsMeta', e.message); }
+  return {};
+}
+
+function saveGauntletAssetsMeta(meta) {
+  const dir = path.dirname(GAUNTLET_ASSETS_META_PATH);
+  if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+  fs.writeFileSync(GAUNTLET_ASSETS_META_PATH, JSON.stringify(meta, null, 2), 'utf8');
+}
+
+function safeGauntletStoredFilename(name) {
+  const base = path.basename(String(name || ''));
+  if (!/^gauntlet-[a-f0-9]{16}\.(png|jpg|jpeg|gif|webp)$/i.test(base)) return null;
+  return base;
+}
+
+function safeQuizCarryPlaqueStoredFilename(name) {
+  const base = path.basename(String(name || ''));
+  if (!/^qcarry-[a-f0-9]{16}\.(png|jpg|jpeg|gif|webp)$/i.test(base)) return null;
+  return base;
+}
+
+function ensureQuizCarryPlaqueAssetsDir() {
+  if (!fs.existsSync(QUIZ_CARRY_PLAQUE_ASSETS_DIR)) fs.mkdirSync(QUIZ_CARRY_PLAQUE_ASSETS_DIR, { recursive: true });
+}
+
+function gauntletAssetMimeByExt(ext) {
+  const e = String(ext || '').toLowerCase();
+  if (e === '.png') return 'image/png';
+  if (e === '.jpg' || e === '.jpeg') return 'image/jpeg';
+  if (e === '.gif') return 'image/gif';
+  if (e === '.webp') return 'image/webp';
+  return 'application/octet-stream';
+}
+
+function listGauntletAssetsApi() {
+  ensureGauntletAssetsDir();
+  const meta = loadGauntletAssetsMeta();
+  let files = [];
+  try {
+    files = fs.readdirSync(GAUNTLET_ASSETS_DIR);
+  } catch (e) {
+    return [];
+  }
+  return files
+    .filter((f) => safeGauntletStoredFilename(f))
+    .map((f) => {
+      const fp = path.join(GAUNTLET_ASSETS_DIR, f);
+      let st;
+      try {
+        st = fs.statSync(fp);
+      } catch (e) {
+        return null;
+      }
+      const entry = meta[f];
+      const label = entry && typeof entry.label === 'string' ? entry.label.slice(0, 120) : '';
+      return {
+        filename: f,
+        url: BASE_PATH + '/img/gauntlet-assets/' + f,
+        label: label || f,
+        bytes: st.size,
+        mtime: st.mtimeMs,
+      };
+    })
+    .filter(Boolean)
+    .sort((a, b) => b.mtime - a.mtime);
+}
+
+function saveQuizSettings(d) {
+  try {
+    const prev = loadQuizSettings();
+    const dir = path.dirname(QUIZ_SETTINGS_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    const readMs = d.readMs != null ? clampQuizMs(d.readMs, prev.readMs) : prev.readMs;
+    const answerMs = d.answerMs != null ? clampQuizMs(d.answerMs, prev.answerMs) : prev.answerMs;
+    const betweenMs = d.betweenMs != null ? clampQuizBetweenMs(d.betweenMs, prev.betweenMs) : prev.betweenMs;
+    const carryReadMs = d.carryReadMs != null ? clampQuizBetweenMs(d.carryReadMs, prev.carryReadMs) : prev.carryReadMs;
+    const carryAnswerMs = d.carryAnswerMs != null ? clampQuizMs(d.carryAnswerMs, prev.carryAnswerMs) : prev.carryAnswerMs;
+    const carrySessionLength = d.carrySessionLength != null
+      ? clampCarrySessionLength(d.carrySessionLength, prev.carrySessionLength)
+      : prev.carrySessionLength;
+    const questions = Array.isArray(d.questions)
+      ? (d.questions || [])
+        .filter((q) => q && String(q.text || '').trim())
+        .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }))
+      : prev.questions;
+    const carryQuestions = Array.isArray(d.carryQuestions)
+      ? sanitizeCarryQuestions(d.carryQuestions)
+      : prev.carryQuestions;
+    const battleQuizMcq = Array.isArray(d.battleQuizMcq)
+      ? sanitizeBattleQuizMcq(d.battleQuizMcq)
+      : (prev.battleQuizMcq || []);
+    const carryMapPanelTheme = d.carryMapPanelTheme != null && typeof d.carryMapPanelTheme === 'object'
+      ? sanitizeCarryMapPanelTheme(d.carryMapPanelTheme)
+      : prev.carryMapPanelTheme;
+    const quizMapPanelTheme = d.quizMapPanelTheme != null && typeof d.quizMapPanelTheme === 'object'
+      ? sanitizeCarryMapPanelTheme(d.quizMapPanelTheme)
+      : prev.quizMapPanelTheme;
+    const carryEmbedCountdownTheme = d.carryEmbedCountdownTheme != null && typeof d.carryEmbedCountdownTheme === 'object'
+      ? sanitizeCarryEmbedCountdownTheme(d.carryEmbedCountdownTheme)
+      : prev.carryEmbedCountdownTheme;
+    let carryChoicePlaqueThemes = prev.carryChoicePlaqueThemes;
+    if (Array.isArray(d.carryChoicePlaqueThemes) && d.carryChoicePlaqueThemes.length) {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(d.carryChoicePlaqueThemes);
+    } else if (d.carryChoicePlaqueTheme != null && typeof d.carryChoicePlaqueTheme === 'object') {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(d.carryChoicePlaqueTheme);
+    }
+    if (!Array.isArray(carryChoicePlaqueThemes) || !carryChoicePlaqueThemes.length) {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(prev.carryChoicePlaqueTheme);
+    }
+    const carryChoicePlaqueTheme = carryChoicePlaqueThemes[0];
+    const prevScale = prev.carryChoicePlaqueMapScale != null
+      ? clampCarryChoicePlaqueMapScale(prev.carryChoicePlaqueMapScale, 1.25)
+      : 1.25;
+    const carryChoicePlaqueMapScale = d.carryChoicePlaqueMapScale != null
+      ? clampCarryChoicePlaqueMapScale(d.carryChoicePlaqueMapScale, prevScale)
+      : prevScale;
+    const prevWalkId = sanitizeCarryWalkSpeedMultForMapId(prev.carryWalkSpeedMultForMapId);
+    const prevWalkMult = prev.carryWalkSpeedMult != null ? clampCarryWalkSpeedMultSetting(prev.carryWalkSpeedMult) : null;
+    let carryWalkSpeedMultForMapId = d.carryWalkSpeedMultForMapId !== undefined
+      ? sanitizeCarryWalkSpeedMultForMapId(d.carryWalkSpeedMultForMapId)
+      : prevWalkId;
+    let carryWalkSpeedMult = d.carryWalkSpeedMult !== undefined ? clampCarryWalkSpeedMultSetting(d.carryWalkSpeedMult) : prevWalkMult;
+    if (!carryWalkSpeedMultForMapId) {
+      carryWalkSpeedMult = null;
+    } else if (carryWalkSpeedMult == null) {
+      carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(1.42);
+    }
+    const quizRoundQuestionCount = d.quizRoundQuestionCount != null
+      ? clampQuizRoundQuestionCount(d.quizRoundQuestionCount, prev.quizRoundQuestionCount)
+      : prev.quizRoundQuestionCount;
+    const specialQuizSets = d.specialQuizSets != null
+      ? sanitizeSpecialQuizSets(d.specialQuizSets)
+      : sanitizeSpecialQuizSets(prev.specialQuizSets);
+    const out = {
+      readMs,
+      answerMs,
+      betweenMs,
+      carryReadMs,
+      carryAnswerMs,
+      carrySessionLength,
+      carryMapPanelTheme,
+      quizMapPanelTheme,
+      carryEmbedCountdownTheme,
+      carryChoicePlaqueThemes,
+      carryChoicePlaqueTheme,
+      carryChoicePlaqueMapScale,
+      carryWalkSpeedMultForMapId,
+      carryWalkSpeedMult,
+      quizRoundQuestionCount,
+      questions,
+      carryQuestions,
+      battleQuizMcq,
+      specialQuizSets,
+    };
+    fs.writeFileSync(QUIZ_SETTINGS_PATH, JSON.stringify(out, null, 2), 'utf8');
+    return {
+      ok: true,
+      battleQuizMcqSaved: (out.battleQuizMcq || []).length,
+      carryQuestionsSaved: (out.carryQuestions || []).length,
+      specialQuizSets: out.specialQuizSets,
+      carryMapPanelTheme: out.carryMapPanelTheme,
+      quizMapPanelTheme: out.quizMapPanelTheme,
+      carryEmbedCountdownTheme: out.carryEmbedCountdownTheme,
+      carryChoicePlaqueThemes: out.carryChoicePlaqueThemes,
+      carryChoicePlaqueTheme: out.carryChoicePlaqueTheme,
+      carryChoicePlaqueMapScale: out.carryChoicePlaqueMapScale,
+    };
+  } catch (e) {
+    console.error('saveQuizSettings', e.message);
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') {
+      err = 'ไม่มีสิทธิ์เขียนไฟล์ quiz-settings.json (ให้ chown เป็น user ที่รันเกม เช่น www-data)';
+    } else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function getQuizQuestionPool(md) {
+  const g = loadQuizSettings();
+  const globalQ = (g.questions || []).filter((q) => q && String(q.text || '').trim());
+  if (globalQ.length) return globalQ;
+  return (md.quizQuestions || []).filter((q) => q && String(q.text || '').trim());
+}
+
+function quizCellOn(grid, tx, ty) {
+  return !!(grid && grid[ty] && grid[ty][tx] === 1);
+}
+
+function getCharacterFootprintWHForMove(md) {
+  let cw = Math.floor(Number(md.characterCellsW));
+  let ch = Math.floor(Number(md.characterCellsH));
+  const hasW = Number.isFinite(cw) && cw >= 1;
+  const hasH = Number.isFinite(ch) && ch >= 1;
+  if (hasW && hasH) {
+    return { cw: Math.max(1, Math.min(4, cw)), ch: Math.max(1, Math.min(4, ch)) };
+  }
+  const leg = Math.max(1, Math.min(4, Math.floor(Number(md.characterCells)) || 1));
+  return { cw: leg, ch: leg };
+}
+
+function getCharacterCollisionFootprintWHForMove(md) {
+  const { cw, ch } = getCharacterFootprintWHForMove(md);
+  let colW = Math.floor(Number(md.characterCollisionW));
+  let colH = Math.floor(Number(md.characterCollisionH));
+  if (!Number.isFinite(colW) || colW < 1) colW = cw;
+  if (!Number.isFinite(colH) || colH < 1) colH = ch;
+  colW = Math.max(1, Math.min(cw, colW));
+  colH = Math.max(1, Math.min(ch, colH));
+  return { cw, ch, colW, colH };
+}
+
+function serverWallCollisionTileKeys(md, px, py) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const { cw, ch, colW, colH } = getCharacterCollisionFootprintWHForMove(md);
+  const minTx = Math.floor(Number(px));
+  const minTy = Math.floor(Number(py));
+  const offX = minTx + Math.floor((cw - colW) / 2);
+  const offY = minTy + (ch - colH);
+  const out = [];
+  for (let ty = offY; ty < offY + colH; ty++) {
+    for (let tx = offX; tx < offX + colW; tx++) {
+      if (tx >= 0 && ty >= 0 && tx < w && ty < h) out.push(`${tx},${ty}`);
+    }
+  }
+  return out;
+}
+
+function quizCarryFootprintTileKeys(md, px, py) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const { cw, ch } = getCharacterFootprintWHForMove(md);
+  const minTx = Math.floor(Number(px));
+  const minTy = Math.floor(Number(py));
+  const maxTx = Math.min(w - 1, minTx + cw - 1);
+  const maxTy = Math.min(h - 1, minTy + ch - 1);
+  const out = [];
+  for (let ty = minTy; ty <= maxTy; ty++) {
+    for (let tx = minTx; tx <= maxTx; tx++) {
+      if (tx >= 0 && ty >= 0) out.push(`${tx},${ty}`);
+    }
+  }
+  return out;
+}
+
+function quizCarryFootprintOverlapsHubServer(md, px, py) {
+  if (!md || !md.quizCarryHubArea || md.gameType !== 'quiz_carry') return false;
+  for (const k of quizCarryFootprintTileKeys(md, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (quizCellOn(md.quizCarryHubArea, tx, ty)) return true;
+  }
+  return false;
+}
+
+/** Nearest walkable tile center not in true/false answer zones (BFS). */
+function findNearestOutsideQuizAnswerZones(md, sx, sy) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const tGrid = md.quizTrueArea || [];
+  const fGrid = md.quizFalseArea || [];
+  const inAnswer = (x, y) => quizCellOn(tGrid, x, y) || quizCellOn(fGrid, x, y);
+  const walkable = (x, y) => {
+    if (x < 0 || x >= w || y < 0 || y >= h) return false;
+    const row = md.objects && md.objects[y];
+    return row && row[x] !== 1;
+  };
+  const fx = Math.floor(Number(sx));
+  const fy = Math.floor(Number(sy));
+  if (!walkable(fx, fy)) {
+    const sp = md.spawn || { x: 1, y: 1 };
+    return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+  }
+  if (!inAnswer(fx, fy)) return { x: sx, y: sy };
+  const q = [[fx, fy]];
+  const seen = new Set([`${fx},${fy}`]);
+  const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+  while (q.length) {
+    const [cx, cy] = q.shift();
+    for (let di = 0; di < dirs.length; di++) {
+      const nx = cx + dirs[di][0];
+      const ny = cy + dirs[di][1];
+      const k = `${nx},${ny}`;
+      if (seen.has(k)) continue;
+      if (!walkable(nx, ny)) continue;
+      seen.add(k);
+      if (!inAnswer(nx, ny)) {
+        return { x: nx + 0.5, y: ny + 0.5 };
+      }
+      q.push([nx, ny]);
+    }
+  }
+  const sp = md.spawn || { x: 1, y: 1 };
+  return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+}
+
+function validateQuizMap(md) {
+  const pool = getQuizQuestionPool(md);
+  if (pool.length < 1) {
+    return 'เพิ่มคำถามใน Admin แท็บ «คำถามเกม» (หรือบันทึกคำถามในฉากแบบเก่าเป็นสำรอง)';
+  }
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const tGrid = md.quizTrueArea || [];
+  const fGrid = md.quizFalseArea || [];
+  let anyT = false;
+  let anyF = false;
+  for (let y = 0; y < h; y++) {
+    for (let x = 0; x < w; x++) {
+      if (quizCellOn(tGrid, x, y)) anyT = true;
+      if (quizCellOn(fGrid, x, y)) anyF = true;
+    }
+  }
+  if (!anyT || !anyF) return 'วาดโซนคำตอบ ถูก และ ผิด อย่างน้อยช่องละ 1';
+  return null;
+}
+
+function clearSpaceQuizTimers(space) {
+  if (!space.quizTimers || !Array.isArray(space.quizTimers)) {
+    space.quizTimers = [];
+    return;
+  }
+  space.quizTimers.forEach((t) => clearTimeout(t));
+  space.quizTimers = [];
+}
+
+/** หยุดรอบ quiz (mng8a80o) ชั่วคราวระหว่างตอบคำถามพิเศษ — เก็บเวลาที่เหลือไว้ */
+function pauseQuizForSpecialQuiz(sid, space) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active || space.quizFrozenForSpecial) return;
+  const phase = sess.phase;
+  if (phase !== 'read' && phase !== 'answer') return;
+  const remaining = Math.max(0, (Number(sess.phaseEndsAt) || 0) - Date.now());
+  space.quizFrozenForSpecial = true;
+  space.quizFreezePhase = phase;
+  space.quizFreezeRemainingMs = remaining;
+  clearSpaceQuizTimers(space);
+  io.to(sid).emit('quiz-paused', { phase });
+}
+
+/** เล่นรอบ quiz ต่อหลังตอบคำถามพิเศษเสร็จ — ตั้ง timer ใหม่ด้วยเวลาที่เหลือ */
+function resumeQuizAfterSpecialQuiz(sid, space) {
+  if (!space.quizFrozenForSpecial) return;
+  space.quizFrozenForSpecial = false;
+  const sess = space.quizSession;
+  const phase = space.quizFreezePhase;
+  const remaining = Math.max(1200, Number(space.quizFreezeRemainingMs) || 0);
+  space.quizFreezePhase = null;
+  space.quizFreezeRemainingMs = 0;
+  if (!sess || !sess.active) return;
+  const md = sess.quizMapMd || getLobbyLayoutMapForSpace(space);
+  if (!md) return;
+  /* Time Dilation: +N วิให้รอบ quiz (mng8a80o) ตอน resume */
+  let extraMs = 0;
+  if (space.timeDilationPendingSec > 0) {
+    extraMs = space.timeDilationPendingSec * 1000;
+    space.timeDilationPendingSec = 0;
+  }
+  sess.phaseEndsAt = Date.now() + remaining + extraMs;
+  if (phase === 'read') {
+    sess.phase = 'read';
+    const q = sess.questions[sess.qIndex];
+    io.to(sid).emit('quiz-phase', {
+      phase: 'read',
+      questionIndex: sess.qIndex + 1,
+      questionTotal: sess.questions.length,
+      text: String((q && q.text) || '').trim(),
+      endsAt: sess.phaseEndsAt,
+      resumed: true,
+    });
+    const t = setTimeout(() => scheduleQuizAnswerPhase(sid, space, md), remaining);
+    space.quizTimers.push(t);
+  } else {
+    sess.phase = 'answer';
+    io.to(sid).emit('quiz-phase', {
+      phase: 'answer',
+      questionIndex: sess.qIndex + 1,
+      questionTotal: sess.questions.length,
+      endsAt: sess.phaseEndsAt,
+      resumed: true,
+    });
+    const t = setTimeout(() => resolveQuizRound(sid, space, md), remaining);
+    space.quizTimers.push(t);
+  }
+}
+
+/** เกมถูก/ผิด: คะแนนต่อข้อที่ตอบถูก (ตรงกับ client + เอฟเฟกต์ score+.png) */
+const QUIZ_TF_POINTS_PER_CORRECT = 10;
+
+function shuffleQuizQuestions(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+function ensurePeerLobbyThemes(space) {
+  if (!space || !space.peers) return;
+  const seen = new Set();
+  space.peers.forEach((p, id) => {
+    let ti = parseInt(p.lobbyColorThemeIndex, 10);
+    if (!(ti >= 1 && ti <= LOBBY_THEME_COUNT) || seen.has(ti)) {
+      ti = pickFreeLobbyThemeIndex(space, id);
+      p.lobbyColorThemeIndex = ti;
+    }
+    seen.add(ti);
+    if (!parseInt(p.lobbySkinToneIndex, 10) || p.lobbySkinToneIndex < 1 || p.lobbySkinToneIndex > LOBBY_SKIN_COUNT) {
+      p.lobbySkinToneIndex = pickLobbySkinIndexForSlot(p.spawnJoinOrder || 0);
+    }
+  });
+}
+
+function buildPeersSnapForSpace(space, extraFields) {
+  return [...space.peers.values()].map((p) => {
+    const row = {
+      id: p.id,
+      x: p.x,
+      y: p.y,
+      direction: p.direction || 'down',
+      nickname: p.nickname,
+      ready: !!p.ready,
+      characterId: p.characterId ?? null,
+      lobbyColorThemeIndex: p.lobbyColorThemeIndex || null,
+      lobbySkinToneIndex: p.lobbySkinToneIndex || null,
+    };
+    if (extraFields && extraFields.gauntlet) {
+      row.gauntletJumpTicks = p.gauntletJumpTicks || 0;
+      row.gauntletScore = p.gauntletScore || 0;
+      row.gauntletEliminated = !!p.gauntletEliminated;
+    }
+    return row;
+  });
+}
+
+/** สุ่ม 3 minigame จาก pool 7 แบบ — เรียกครั้งเดียวตอนเข้า LobbyB (ล็อกบน space) */
+/** แมปเก่า (กบ frogger) → Minigame-2 Gauntlet ตาม Admin */
+function normalizeDetectiveCardEntry(entry) {
+  if (!entry) return entry;
+  const mid = entry.mapId != null ? String(entry.mapId).trim() : '';
+  if (mid === 'mlpecp2j' || entry.key === 'frogger') {
+    const gaunt = DETECTIVE_MINIGAME_POOL.find((e) => e.key === 'gauntlet');
+    if (gaunt && maps.has(gaunt.mapId)) {
+      const md = maps.get(gaunt.mapId);
+      return {
+        ...entry,
+        key: gaunt.key,
+        mapId: gaunt.mapId,
+        labelTh: gaunt.labelTh,
+        mapName: (md && md.name) || gaunt.mapId,
+        gameType: (md && md.gameType) || 'gauntlet',
+      };
+    }
+  }
+  return entry;
+}
+
+function assignDetectiveSuspectCardMinigames(space) {
+  const available = DETECTIVE_MINIGAME_POOL.filter((e) => maps.has(e.mapId));
+  const shuffled = shuffleQuizQuestions(available.length ? available : [{ key: 'quiz', mapId: SUSPECT_INVESTIGATION_QUIZ_MAP_ID, labelTh: 'QuestionGame' }]);
+  space.suspectCardMinigames = shuffled.slice(0, 3).map((entry, i) => {
+    const md = maps.get(entry.mapId);
+    return {
+      cardIndex: i,
+      key: entry.key,
+      mapId: entry.mapId,
+      labelTh: entry.labelTh,
+      mapName: (md && md.name) || entry.mapId,
+      gameType: (md && md.gameType) || '',
+    };
+  });
+  // ชุดการ์ดใหม่ = ล้างหลักฐานที่ผู้เล่นเก็บได้
+  space.playerEvidence = {};
+  // สุ่มคนร้ายตัวจริง 1 ใน 3 ใบ (เก็บฝั่ง server ไม่ส่งให้ client จนกว่าจะเปิดเผย)
+  space.culpritIndex = Math.floor(Math.random() * 3);
+  space.trialPhase = null;        // null | 'voting' | 'revealed'
+  space.trialVotes = {};          // socketId -> suspectIndex
+  space.trialScores = space.trialScores || {};
+}
+
+function ensureSpacePlayerEvidence(space) {
+  if (!space.playerEvidence || typeof space.playerEvidence !== 'object') space.playerEvidence = {};
+  if (!space.evidenceByNick || typeof space.evidenceByNick !== 'object') space.evidenceByNick = {};
+}
+
+/* แถวหลักฐานต่อผู้ต้องสงสัย = array ของ card object (ไม่จำกัดจำนวน) — กรอง element ที่ไม่ใช่การ์ดทิ้ง */
+function normalizeEvidenceSlotList(cards) {
+  if (!Array.isArray(cards)) return [];
+  const out = [];
+  for (let i = 0; i < cards.length; i++) {
+    const c = sanitizeStoredEvidenceCard(cards[i]);
+    if (c) out.push(c);
+  }
+  return out;
+}
+
+/** ดึง nickname normalized ของผู้เล่นบน space (จากแถว peers) — ใช้คีย์เก็บหลักฐานข้ามการ reconnect */
+function peerNickKey(space, playerId) {
+  if (!space || !playerId) return '';
+  const p = space.peers && space.peers.get ? space.peers.get(playerId) : null;
+  if (!p || !p.nickname) return '';
+  return normalizeLobbyNickname(p.nickname);
+}
+
+/** สำเนาหลักฐาน — fallback ไป evidenceByNick ถ้าไม่มีตาม socket.id (กรณี reconnect socket ใหม่) */
+function clonePlayerEvidence(space, playerId) {
+  ensureSpacePlayerEvidence(space);
+  let row = space.playerEvidence[playerId];
+  if (!row || !row.length) {
+    const nk = peerNickKey(space, playerId);
+    if (nk && space.evidenceByNick[nk]) {
+      row = space.evidenceByNick[nk];
+      space.playerEvidence[playerId] = row;
+    }
+  }
+  if (!row) row = [[], [], []];
+  return [0, 1, 2].map((i) => normalizeEvidenceSlotList(row[i]));
+}
+
+/** ซิงค์หลักฐานของผู้เล่นปัจจุบันลง evidenceByNick — เรียกหลังการ์ดเปลี่ยน */
+function syncEvidenceByNick(space, playerId) {
+  ensureSpacePlayerEvidence(space);
+  const nk = peerNickKey(space, playerId);
+  if (!nk) return;
+  const row = space.playerEvidence[playerId];
+  if (Array.isArray(row)) space.evidenceByNick[nk] = row;
+}
+
+/** จำนวนหลักฐานที่เก็บได้ต่อผู้ต้องสงสัย (ไม่จำกัด) — ใช้แสดงติก/จำนวนบนการ์ด suspect */
+function playerSuspectProgressFromEvidence(space, playerId) {
+  const row = clonePlayerEvidence(space, playerId);
+  return row.map((arr) => arr.length);
+}
+
+/** มอบการ์ดหลักฐาน 1 ใบ (สุ่ม rarity ตามเกรด → สุ่มรูปจากพูล) เก็บเป็น card object ไม่จำกัดจำนวน */
+function awardRandomEvidenceCardToPlayer(space, playerId, suspectIndex, grade) {
+  if (suspectIndex < 0 || suspectIndex > 2) return null;
+  ensureSpacePlayerEvidence(space);
+  /* เผื่อ rejoin: ดึงหลักฐานเก่าจาก nickname ถ้ามี ก่อนเพิ่มใบใหม่ */
+  if (!space.playerEvidence[playerId]) {
+    const nk = peerNickKey(space, playerId);
+    space.playerEvidence[playerId] = (nk && space.evidenceByNick[nk])
+      ? space.evidenceByNick[nk]
+      : [[], [], []];
+  }
+  const list = normalizeEvidenceSlotList(space.playerEvidence[playerId][suspectIndex]);
+  const card = pickEvidenceCardForSuspect(space, suspectIndex, grade);
+  if (!card) {
+    space.playerEvidence[playerId][suspectIndex] = list;
+    syncEvidenceByNick(space, playerId);
+    return null;
+  }
+  list.push(card);
+  space.playerEvidence[playerId][suspectIndex] = list;
+  syncEvidenceByNick(space, playerId);
+  return card;
+}
+
+function awardDetectiveEvidenceForMinigameEnd(space, suspectIndex, playerIds, grade) {
+  const out = {};
+  (playerIds || []).forEach((pid) => {
+    if (!space.peers.has(pid)) return;
+    const card = awardRandomEvidenceCardToPlayer(space, pid, suspectIndex, grade);
+    if (card != null) out[pid] = card;
+  });
+  return out;
+}
+
+function resolveDetectiveSuspectAwardIndex(space) {
+  if (typeof space.suspectActiveIndex === 'number' && space.suspectActiveIndex >= 0 && space.suspectActiveIndex <= 2) {
+    return space.suspectActiveIndex;
+  }
+  if (typeof space.lastDetectiveInvestigatedSuspect === 'number'
+    && space.lastDetectiveInvestigatedSuspect >= 0 && space.lastDetectiveInvestigatedSuspect <= 2) {
+    return space.lastDetectiveInvestigatedSuspect;
+  }
+  if (typeof space.suspectPickIndex === 'number' && space.suspectPickIndex >= 0 && space.suspectPickIndex <= 2) {
+    return space.suspectPickIndex;
+  }
+  return -1;
+}
+
+/** มอบการ์ดหลักฐาน 1 ใบต่อผู้เล่นเมื่อจบมินิเกม (ครั้งเดียวต่อรอบ — ไม่ขึ้นเกรด) */
+function grantDetectiveEvidenceForCurrentRun(sid, space, playerIds) {
+  const suspectIdx = resolveDetectiveSuspectAwardIndex(space);
+  if (suspectIdx < 0) return { suspectIdx: -1, awarded: {} };
+  if (space.detectiveAwardDoneForRun) {
+    return { suspectIdx, awarded: {}, alreadyGranted: true };
+  }
+  const ids = (playerIds && playerIds.length) ? playerIds : [...space.peers.keys()];
+  const grade = computeRunGradeForEvidence(space);
+  const awardedList = {};
+  ids.forEach((pid) => { awardedList[pid] = []; });
+  const awarded = awardDetectiveEvidenceForMinigameEnd(space, suspectIdx, ids, grade);
+  ids.forEach((pid) => { if (awarded[pid]) awardedList[pid].push(awarded[pid]); });
+  /* Card 7 Free Evidence — ทุกคนรับหลักฐานเพิ่ม (after_game) */
+  let freeEvidenceCount = 0;
+  const pend = space.pendingSpecialCard;
+  if (pend && Number(pend.cardId) === 7 && !pend.consumed) {
+    const def = specialCardDef(7);
+    freeEvidenceCount = (def && def.evidence) || 2;
+    for (let n = 0; n < freeEvidenceCount; n++) {
+      ids.forEach((pid) => {
+        if (!space.peers.has(pid)) return;
+        const extra = awardRandomEvidenceCardToPlayer(space, pid, suspectIdx, grade);
+        if (extra != null) { awardedList[pid].push(extra); if (awarded[pid] == null) awarded[pid] = extra; }
+      });
+    }
+    pend.consumed = true;
+  }
+  space.detectiveAwardDoneForRun = true;
+  space.lastDetectiveInvestigatedSuspect = suspectIdx;
+  space.lastEvidenceGrant = { suspectIdx, awarded, awardedList, grade, freeEvidenceCount };
+  emitLobbyEvidenceSync(sid, space);
+  return { suspectIdx, awarded, awardedList, grade, alreadyGranted: false, freeEvidenceCount };
+}
+
+function emitLobbyEvidenceSync(sid, space) {
+  if (!sid || !space) return;
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('lobby-evidence-sync', {
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    });
+  });
+}
+
+function emitDetectiveLobbyReturnToPeers(sid, space, message, basePayload) {
+  const msg = message || 'จบมินิเกม — กลับ LobbyB';
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    const personal = {
+      ...basePayload,
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    };
+    sock.emit('quiz-ended', { message: msg, returnToLobbyB: true });
+    sock.emit('detective-minigame-ended', personal);
+    sock.emit('game-start', personal);
+  });
+}
+
+/** เริ่มมินิเกมตามการ์ดที่เลือก (หลังกดเริ่มสืบสวน) */
+function beginDetectiveSuspectMinigame(sid, space, cardEntry, selectedIndex) {
+  const mapId = cardEntry && cardEntry.mapId ? String(cardEntry.mapId).trim() : '';
+  const md = mapId && maps.has(mapId) ? maps.get(mapId) : null;
+  if (!md) return { ok: false, error: 'ไม่พบฉากเกมบนเซิร์ฟเวอร์' };
+
+  space.suspectPhaseActive = false;
+  space.detectiveMinigameActive = true;
+  space.detectiveAwardDoneForRun = false;
+  /* Card 3 Ban — ผู้ที่ถูกแบนไม่ได้เล่นมินิเกมรอบนี้ (1 รอบ) */
+  space.bannedThisRunPlayerId = space.bannedPlayerId || null;
+  space.bannedPlayerId = null;
+  space.detectiveMinigameCardIndex = cardEntry.cardIndex;
+  // จำว่ากำลังสืบผู้ต้องสงสัยคนไหน เพื่อเติมหลักฐาน (ติกถูก) ตอนเล่นจบ
+  space.suspectActiveIndex = (typeof selectedIndex === 'number' && selectedIndex >= 0 && selectedIndex <= 2)
+    ? selectedIndex
+    : (cardEntry && typeof cardEntry.cardIndex === 'number' ? cardEntry.cardIndex : 0);
+  space.gauntletReturnMapId = POST_CASE_LOBBY_SPACE_ID;
+  clearSpaceQuizTimers(space);
+  if (space.quizSession) space.quizSession.active = false;
+  space.quizSession = null;
+  space.mapId = mapId;
+  space.mapData = md;
+  /* สุ่มไอคอนคำถามพิเศษสำหรับรอบนี้ (1 ใน 3) — ส่งจริงผ่าน joinCb เมื่อ client เข้า play.html */
+  maybeSpawnSpecialQuizForRun(space);
+  emitSpecialQuizIcon(sid, space);
+
+  let si = 0;
+  space.peers.forEach((p) => {
+    const sp = pickSpawnForJoin(md, si++);
+    p.x = sp.x;
+    p.y = sp.y;
+    p.direction = 'down';
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+
+  const peersSnap = buildPeersSnapForSpace(space, { gauntlet: md.gameType === 'gauntlet' });
+  const invPayload = {
+    selectedIndex,
+    cardIndex: cardEntry.cardIndex,
+    minigameKey: cardEntry.key,
+    minigameLabel: cardEntry.labelTh,
+    mapId,
+  };
+  io.to(sid).emit('suspect-investigation-start', invPayload);
+
+  if (md.gameType === 'quiz') {
+    const qErr = validateQuizMap(md);
+    if (qErr) {
+      space.detectiveMinigameActive = false;
+      space.gauntletReturnMapId = null;
+      return { ok: false, error: qErr };
+    }
+    /** ภารกิจ mng8a80o — HOW TO + READY + นับ 3-2-1 เหมือน preview (อย่า startQuizGame ทันที) */
+    const isQuizMissionShell = String(mapId).trim() === SUSPECT_INVESTIGATION_QUIZ_MAP_ID;
+    if (!isQuizMissionShell) {
+      io.to(sid).emit('game-start', {
+        quizMode: true,
+        stayInRoomLobby: true,
+        mapId,
+        peersSnap,
+        detectiveMinigame: true,
+        minigameLabel: cardEntry.labelTh,
+        bannedPlayerId: space.bannedThisRunPlayerId || null,
+      });
+      setTimeout(() => {
+        const spNow = spaces.get(sid);
+        if (!spNow || !spNow.peers.size) return;
+        const mdLive = maps.get(mapId);
+        if (!mdLive || mdLive.gameType !== 'quiz') return;
+        startQuizGame(sid, spNow, mdLive);
+      }, 900);
+      return { ok: true, mapId, gameType: md.gameType };
+    }
+    /* mng8a80o: ต่อ gauntletRun shell ด้านล่าง */
+  }
+
+  stopGauntletTicker(space);
+  space.gauntletRun = null;
+  if (md.gameType === 'gauntlet') {
+    initGauntletPeersAll(space, md);
+    ensureGauntletEndsAtIfNeeded(space);
+    startGauntletTicker(sid, space);
+  } else if (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space) || md.gameType === 'quiz_carry') {
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    space.peers.forEach((_p, id) => { space.gauntletCrownLobbyReady[id] = false; });
+    space.gauntletRun = newBalloonBossShellGauntletRunState();
+  }
+
+  const gameStartPayload = {
+    mapId,
+    peersSnap,
+    detectiveMinigame: true,
+    detectiveReturnLobbyB: true,
+    minigameLabel: cardEntry.labelTh,
+    bannedPlayerId: space.bannedThisRunPlayerId || null,
+  };
+  if (md.gameType === 'gauntlet' && space.gauntletRun) {
+    gameStartPayload.gauntletEndsAt = space.gauntletRun.endsAt != null ? space.gauntletRun.endsAt : null;
+  }
+  if (space.gauntletRun && space.gauntletRun.crownRunHeld) {
+    gameStartPayload.gauntletCrownRunHeld = true;
+  }
+  io.to(sid).emit('game-start', gameStartPayload);
+  return { ok: true, mapId, gameType: md.gameType };
+}
+
+function returnDetectiveSpaceToLobbyB(sid, space, message, awardOptions) {
+  ensurePostCaseLobbyMapLoaded();
+  clearSpaceQuizTimers(space);
+  clearSpecialQuizTimers(space);
+  space.specialQuiz = null;
+  if (space.quizSession) space.quizSession.active = false;
+  space.quizSession = null;
+  space.detectiveMinigameActive = false;
+  space.gauntletReturnMapId = null;
+  stopGauntletTicker(space);
+  space.gauntletRun = null;
+  const suspectIdx = resolveDetectiveSuspectAwardIndex(space);
+  if (suspectIdx >= 0) {
+    space.lastDetectiveInvestigatedSuspect = suspectIdx;
+    let awardIds = [];
+    if (awardOptions && awardOptions.allPlayers) {
+      awardIds = [...space.peers.keys()];
+    } else if (awardOptions && awardOptions.playerId && space.peers.has(awardOptions.playerId)) {
+      awardIds = [awardOptions.playerId];
+    } else if (awardOptions && Array.isArray(awardOptions.playerIds) && awardOptions.playerIds.length) {
+      awardIds = awardOptions.playerIds.filter((id) => space.peers.has(id));
+    }
+    /* Card 3 Ban — ผู้ที่ถูกแบนรอบนี้ไม่ได้เล่น จึงไม่ได้รับหลักฐาน */
+    if (space.bannedThisRunPlayerId) {
+      awardIds = awardIds.filter((id) => id !== space.bannedThisRunPlayerId);
+    }
+    /* ไม่มอบการ์ดเมื่อกลับ LobbyB โดยไม่ระบุ (เช่น refresh room-lobby ระหว่างมินิเกม) */
+    if (!space.detectiveAwardDoneForRun && awardIds.length) {
+      /* ผ่าน grant…CurrentRun เพื่อให้ set lastEvidenceGrant + ใช้ Card 7 Free Evidence + sync แฟ้ม (สำหรับหน้าเปิดเผยหลักฐาน) */
+      grantDetectiveEvidenceForCurrentRun(sid, space, awardIds);
+    }
+  }
+  space.suspectActiveIndex = null;
+  space.bannedThisRunPlayerId = null;
+  const lb = maps.get(POST_CASE_LOBBY_SPACE_ID);
+  if (!lb) {
+    io.to(sid).emit('quiz-ended', { message: message || 'จบมินิเกม — ไม่พบ LobbyB', returnToLobbyB: true });
+    return;
+  }
+  space.mapId = POST_CASE_LOBBY_SPACE_ID;
+  space.mapData = lb;
+  space.suspectPhaseActive = true;
+  let gi = 0;
+  space.peers.forEach((p) => {
+    const sp = pickSpawnForJoin(lb, gi++);
+    p.x = sp.x;
+    p.y = sp.y;
+    p.direction = 'down';
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+  const peersSnap = buildPeersSnapForSpace(space);
+  const basePayload = {
+    stayInRoomLobby: true,
+    mapId: POST_CASE_LOBBY_SPACE_ID,
+    peersSnap,
+    suspectPhaseActive: true,
+    suspectPickIndex: typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0,
+    cardMinigames: space.suspectCardMinigames || [],
+    detectiveReturn: true,
+  };
+  emitDetectiveLobbyReturnToPeers(sid, space, message, basePayload);
+}
+
+/* ===== ขั้นพิจารณาคดี — โหวตชี้ตัวคนร้าย ===== */
+function emitTrialVoteUpdate(sid, space) {
+  const counts = [0, 0, 0];
+  const votes = space.trialVotes || {};
+  Object.keys(votes).forEach((id) => { const v = votes[id]; if (v >= 0 && v <= 2) counts[v]++; });
+  io.to(sid).emit('trial-vote-update', {
+    counts,
+    voted: Object.keys(votes).length,
+    totalPlayers: trialEligibleVoterTotal(space),
+  });
+}
+
+function computeAndEmitTrialResult(sid, space) {
+  /* กันบอทบางตัวยังไม่โหวต — โหวตให้หมดก่อนรวมผล */
+  autoVoteBotsTrial(space);
+  clearTrialVoteTimer(space);
+  const counts = [0, 0, 0];
+  const votes = space.trialVotes || {};
+  const culprit = (typeof space.culpritIndex === 'number') ? space.culpritIndex : 0;
+  /* Card 5 Bail Coin — จับผิดตัวให้โหวตใหม่ได้ 1 ครั้ง */
+  {
+    const c2 = [0, 0, 0];
+    Object.keys(votes).forEach((id) => { const v = votes[id]; if (v >= 0 && v <= 2) c2[v]++; });
+    let mostVoted = 0; for (let k = 1; k <= 2; k++) { if (c2[k] > c2[mostVoted]) mostVoted = k; }
+    const anyVotes = (c2[0] + c2[1] + c2[2]) > 0;
+    const wrong = anyVotes && mostVoted !== culprit;
+    const pend = space.pendingSpecialCard;
+    if (wrong && pend && Number(pend.cardId) === 5 && !pend.consumed && !space.trialBailUsed) {
+      pend.consumed = true;
+      space.trialBailUsed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'bail' });
+      openTrialVotingPhase(sid, space, { revote: true });
+      return;
+    }
+  }
+  space.trialPhase = 'revealed';
+  const winners = [];
+  if (!space.trialScores) space.trialScores = {};
+  Object.keys(votes).forEach((id) => {
+    const v = votes[id];
+    if (v >= 0 && v <= 2) counts[v]++;
+    if (v === culprit) {
+      winners.push(id);
+      space.trialScores[id] = (space.trialScores[id] || 0) + 100;
+    }
+  });
+  const winnerNames = winners.map((id) => {
+    const p = space.peers.get(id);
+    if (p && p.nickname) return p.nickname;
+    if (typeof id === 'string' && id.indexOf(TESTIMONY_BOT_PREFIX) === 0) {
+      const slot = parseInt(id.slice(TESTIMONY_BOT_PREFIX.length), 10);
+      return Number.isFinite(slot) ? ('บอท ' + (slot + 1)) : 'บอท';
+    }
+    return String(id).slice(0, 6);
+  });
+  io.to(sid).emit('trial-result', {
+    culpritIndex: culprit,
+    counts,
+    winners,
+    winnerNames,
+    cardMinigames: space.suspectCardMinigames || [],
+  });
+  space.silencedPlayerId = null;
+}
+
+/* ===== ห้องสรุปหลักฐาน — การไต่สวน (ปากคำ 3 รอบ ก่อนโหวต) ===== */
+/** id บอทใน testimony/trial — สอดคล้องกับ slot บน lobby (__lobby_bot_0..N) */
+const TESTIMONY_BOT_PREFIX = '__lobby_bot_';
+
+function testimonyBotIds(space) {
+  const n = effectiveBotSlotCount(space);
+  const out = [];
+  for (let i = 0; i < n; i++) out.push(TESTIMONY_BOT_PREFIX + i);
+  return out;
+}
+
+function buildTestimonyMembers(space) {
+  const arr = [];
+  space.peers.forEach((p, id) => {
+    arr.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isHost: id === space.hostId, isBot: false });
+  });
+  testimonyBotIds(space).forEach((bid, i) => {
+    arr.push({ id: bid, nickname: 'บอท ' + (i + 1), isHost: false, isBot: true });
+  });
+  return arr;
+}
+
+/** จำนวนผู้เล่นทั้งหมดที่ต้อง submit/vote (รวมบอท) */
+function testimonyTotalParticipants(space) {
+  return (space.peers ? space.peers.size : 0) + effectiveBotSlotCount(space);
+}
+
+/** จำนวนการ์ดที่บอทควรเลือก — เท่ากับ max ของ "ผู้เล่นจริง" ในรอบ (กันบอทเลือก 2 ขณะคนเลือก 1) */
+function botTestimonyPickCount(space) {
+  const round = typeof space.testimonyRound === 'number' ? space.testimonyRound : 0;
+  let maxOwned = 0;
+  space.peers.forEach((_p, pid) => {
+    const ev = clonePlayerEvidence(space, pid);
+    const len = Array.isArray(ev[round]) ? ev[round].length : 0;
+    if (len > maxOwned) maxOwned = len;
+  });
+  /* ถ้าผู้เล่นจริงไม่มีหลักฐานเลย — ให้บอทเลือก 1 ใบ (กันรอบติด) */
+  if (maxOwned === 0) return 1;
+  return Math.max(1, Math.min(2, maxOwned));
+}
+
+/** สุ่ม picks ให้บอทในรอบ testimony ปัจจุบัน — เก็บเป็น card object (สุ่มจากพูล rarity 'C') */
+function autoSubmitBotTestimonyPicks(space) {
+  if (!space.testimonySubmitted) space.testimonySubmitted = {};
+  const round = typeof space.testimonyRound === 'number' ? space.testimonyRound : 0;
+  const want = botTestimonyPickCount(space);
+  testimonyBotIds(space).forEach((bid) => {
+    if (space.testimonySubmitted[bid] != null) return;
+    const picks = [];
+    for (let n = 0; n < want; n++) {
+      const c = pickEvidenceCardForSuspect(space, round, 'C');
+      if (c) picks.push(c);
+    }
+    space.testimonySubmitted[bid] = picks;
+  });
+}
+
+function emitTestimonyOpen(sid, space) {
+  space.testimonySubmitted = {};
+  space.testimonyReadyNext = {};
+  space.testimonyRevealed = false;
+  /* บอทส่งหลักฐานทันทีเมื่อเปิด round */
+  autoSubmitBotTestimonyPicks(space);
+  const submittedIds = Object.keys(space.testimonySubmitted || {});
+  const base = {
+    round: space.testimonyRound,
+    suspectIndex: space.testimonyRound,
+    members: buildTestimonyMembers(space),
+    totalPlayers: testimonyTotalParticipants(space),
+    hostId: space.hostId,
+    cardMinigames: space.suspectCardMinigames || [],
+    submitted: submittedIds,
+  };
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('testimony-open', {
+      ...base,
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    });
+  });
+  /* sync สถานะปุ่ม (เผื่อบอทส่งครบแล้ว — host ต้องเห็นปุ่ม "เปิดหลักฐานทั้งหมด" ทันที) */
+  emitTestimonyStatus(sid, space);
+}
+
+function emitTestimonyStatus(sid, space) {
+  io.to(sid).emit('testimony-status', {
+    round: space.testimonyRound,
+    submitted: Object.keys(space.testimonySubmitted || {}),
+    totalPlayers: testimonyTotalParticipants(space),
+  });
+}
+
+function doTestimonyReveal(sid, space) {
+  space.testimonyRevealed = true;
+  /* กันกรณีบอทยังไม่ submit (เผื่อ edge case) */
+  autoSubmitBotTestimonyPicks(space);
+  /* บอทพร้อมไปรอบถัดไปทันที (auto-ready) */
+  if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+  testimonyBotIds(space).forEach((bid) => { space.testimonyReadyNext[bid] = true; });
+  io.to(sid).emit('testimony-reveal', {
+    round: space.testimonyRound,
+    picks: space.testimonySubmitted || {},
+    members: buildTestimonyMembers(space),
+    ready: Object.keys(space.testimonyReadyNext),
+    totalPlayers: testimonyTotalParticipants(space),
+  });
+}
+
+/** สุ่มโหวตชี้คนร้ายให้บอท — สมจริงๆ ก็คือเลือกใครก็ได้ใน 3 คน (มี bias ให้ตัวร้ายจริง 40% เพื่อให้สนุก) */
+/** เวลาโหวตพิจารณาคดี (มิลลิวิ) + เวลาที่การ์ด Extension เพิ่มให้ */
+const TRIAL_VOTE_MS = 30000;
+const TRIAL_VOTE_EXTENSION_MS = 10000;
+
+function clearTrialVoteTimer(space) {
+  if (space.trialVoteTimer) { clearTimeout(space.trialVoteTimer); space.trialVoteTimer = null; }
+}
+
+/** เปิดเฟสโหวต — ตั้งตัวจับเวลา + ส่ง trial-open (ใช้ทั้งโหวตครั้งแรกและโหวตใหม่จาก Bail) */
+function openTrialVotingPhase(sid, space, opts) {
+  opts = opts || {};
+  space.testimonyActive = false;
+  space.trialPhase = 'voting';
+  space.trialVotes = {};
+  autoVoteBotsTrial(space);
+  clearTrialVoteTimer(space);
+  /* Card 2 Extension — เพิ่มเวลาโหวต +10 วิ (ใช้ครั้งเดียว) */
+  let extraMs = 0;
+  let extensionCard = false;
+  const pend = space.pendingSpecialCard;
+  if (pend && Number(pend.cardId) === 2 && !pend.consumed) {
+    extraMs = TRIAL_VOTE_EXTENSION_MS;
+    extensionCard = true;
+    pend.consumed = true;
+  }
+  const durMs = TRIAL_VOTE_MS + extraMs;
+  space.trialVoteEndsAt = Date.now() + durMs;
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('trial-open', {
+      hostId: space.hostId,
+      cardMinigames: space.suspectCardMinigames || [],
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+      voteEndsAt: space.trialVoteEndsAt,
+      voteDurationMs: durMs,
+      extensionCard,
+      extensionSec: extensionCard ? (TRIAL_VOTE_EXTENSION_MS / 1000) : 0,
+      revote: !!opts.revote,
+    });
+  });
+  if (extensionCard) {
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(pend.card),
+      addSec: TRIAL_VOTE_EXTENSION_MS / 1000,
+      context: 'trial',
+    });
+  }
+  emitTrialVoteUpdate(sid, space);
+  space.trialVoteTimer = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.trialPhase !== 'voting') return;
+    computeAndEmitTrialResult(sid, spNow);
+  }, durMs + 120);
+}
+
+/* ===== โหวตเลือกผู้เล่น 1 คน (ใช้ร่วม: Silence ปิดปาก / Ban ห้ามเล่น) ===== */
+const PICK_VOTE_MS = 15000;
+
+function clearPickVoteTimer(space) {
+  if (space.pickVoteTimer) { clearTimeout(space.pickVoteTimer); space.pickVoteTimer = null; }
+}
+
+function pickVoteCandidates(space) {
+  const arr = [];
+  space.peers.forEach((p, id) => arr.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isBot: false }));
+  testimonyBotIds(space).forEach((bid, i) => arr.push({ id: bid, nickname: 'บอท ' + (i + 1), isBot: true }));
+  return arr;
+}
+
+function autoVotePickBots(space) {
+  const pv = space.pickVote;
+  if (!pv) return;
+  testimonyBotIds(space).forEach((bid) => {
+    if (pv.votes[bid] != null) return;
+    const choices = pv.candidates.filter((c) => c.id !== bid);
+    if (!choices.length) return;
+    pv.votes[bid] = choices[Math.floor(Math.random() * choices.length)].id;
+  });
+}
+
+function emitPickVoteUpdate(sid, space) {
+  const pv = space.pickVote;
+  if (!pv) return;
+  const counts = {};
+  Object.keys(pv.votes).forEach((vid) => { const t = pv.votes[vid]; counts[t] = (counts[t] || 0) + 1; });
+  io.to(sid).emit('player-pick-vote-update', {
+    voted: Object.keys(pv.votes).length,
+    total: pv.candidates.length,
+    counts,
+  });
+}
+
+function startPlayerPickVote(sid, space, purpose, onResolve) {
+  clearPickVoteTimer(space);
+  const candidates = pickVoteCandidates(space);
+  space.pickVote = { purpose, votes: {}, candidates, endsAt: Date.now() + PICK_VOTE_MS, resolved: false, onResolve };
+  autoVotePickBots(space);
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('player-pick-vote-open', {
+      purpose,
+      candidates: candidates.map((c) => ({ id: c.id, nickname: c.nickname, isBot: c.isBot })),
+      endsAt: space.pickVote.endsAt,
+      durationMs: PICK_VOTE_MS,
+    });
+  });
+  emitPickVoteUpdate(sid, space);
+  space.pickVoteTimer = setTimeout(() => {
+    const sp = spaces.get(sid);
+    if (!sp || !sp.pickVote || sp.pickVote.resolved) return;
+    resolvePlayerPickVote(sid, sp);
+  }, PICK_VOTE_MS + 120);
+  maybeResolvePickVote(sid, space);
+}
+
+function maybeResolvePickVote(sid, space) {
+  const pv = space.pickVote;
+  if (!pv || pv.resolved) return;
+  const ids = pv.candidates.map((c) => c.id);
+  if (ids.length > 0 && ids.every((id) => pv.votes[id] != null)) resolvePlayerPickVote(sid, space);
+}
+
+function resolvePlayerPickVote(sid, space) {
+  const pv = space.pickVote;
+  if (!pv || pv.resolved) return;
+  pv.resolved = true;
+  clearPickVoteTimer(space);
+  const counts = {};
+  Object.keys(pv.votes).forEach((vid) => { const t = pv.votes[vid]; counts[t] = (counts[t] || 0) + 1; });
+  let max = -1;
+  Object.keys(counts).forEach((tid) => { if (counts[tid] > max) max = counts[tid]; });
+  const maxIds = Object.keys(counts).filter((tid) => counts[tid] === max);
+  const target = maxIds.length ? maxIds[Math.floor(Math.random() * maxIds.length)] : null;
+  const tc = pv.candidates.find((c) => c.id === target);
+  const targetName = tc ? tc.nickname : '';
+  io.to(sid).emit('player-pick-vote-result', { purpose: pv.purpose, targetId: target, targetName, counts });
+  const cb = pv.onResolve;
+  space.pickVote = null;
+  if (typeof cb === 'function') cb(target, targetName);
+}
+
+function trialSilencedIsParticipant(space) {
+  const s = space.silencedPlayerId;
+  if (!s) return false;
+  if (space.peers.has(s)) return true;
+  return (typeof s === 'string' && s.indexOf(TESTIMONY_BOT_PREFIX) === 0);
+}
+
+function trialEligibleVoterTotal(space) {
+  let t = testimonyTotalParticipants(space);
+  if (trialSilencedIsParticipant(space)) t = Math.max(0, t - 1);
+  return t;
+}
+
+function autoVoteBotsTrial(space) {
+  if (!space.trialVotes) space.trialVotes = {};
+  const culprit = (typeof space.culpritIndex === 'number') ? space.culpritIndex : Math.floor(Math.random() * 3);
+  testimonyBotIds(space).forEach((bid) => {
+    if (bid === space.silencedPlayerId) return; /* บอทที่ถูกปิดปากไม่โหวต */
+    if (space.trialVotes[bid] != null) return;
+    /* 40% โหวตถูก, 60% โหวตสุ่ม */
+    let pick;
+    if (Math.random() < 0.4) {
+      pick = culprit;
+    } else {
+      pick = Math.floor(Math.random() * 3);
+    }
+    space.trialVotes[bid] = pick;
+  });
+}
+
+function advanceTestimony(sid, space) {
+  space.testimonyRound = (typeof space.testimonyRound === 'number' ? space.testimonyRound : 0) + 1;
+  if (space.testimonyRound >= 3) {
+    space.trialBailUsed = false;
+    space.silencedPlayerId = null;
+    /* Card 4 Silence — โหวตเลือกผู้เล่น 1 คนให้ห้ามโหวต ก่อนเข้าโหวตจริง */
+    const pend = space.pendingSpecialCard;
+    if (pend && Number(pend.cardId) === 4 && !pend.consumed) {
+      pend.consumed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'silence' });
+      startPlayerPickVote(sid, space, 'silence', (targetId) => {
+        const sp = spaces.get(sid);
+        if (!sp) return;
+        sp.silencedPlayerId = targetId || null;
+        openTrialVotingPhase(sid, sp, { revote: false });
+      });
+      return;
+    }
+    openTrialVotingPhase(sid, space, { revote: false });
+  } else {
+    emitTestimonyOpen(sid, space);
+  }
+}
+
+function endQuizGame(sid, space, message) {
+  clearSpaceQuizTimers(space);
+  if (space.quizSession) space.quizSession.active = false;
+  if (space.detectiveMinigameActive) {
+    returnDetectiveSpaceToLobbyB(sid, space, message, { allPlayers: true });
+    space.quizSession = null;
+    return;
+  }
+  io.to(sid).emit('quiz-ended', { message: message || 'จบเกม' });
+  space.quizSession = null;
+}
+
+function emitQuizPlayerStates(sid, space) {
+  const sess = space.quizSession;
+  if (!sess || !sess.players) return;
+  space.peers.forEach((_, peerId) => {
+    const st = sess.players[peerId];
+    if (st) io.to(peerId).emit('quiz-player-state', { ...st });
+  });
+}
+
+function scheduleQuizReadPhase(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  const idx = sess.qIndex;
+  const qList = sess.questions;
+  if (idx >= qList.length) {
+    endQuizGame(sid, space, 'จบเกม — ครบทุกข้อแล้ว');
+    return;
+  }
+  const q = qList[idx];
+  const readMs = (Number.isFinite(sess.readMs) && sess.readMs >= 1000) ? sess.readMs : 10000;
+  sess.phase = 'read';
+  sess.phaseEndsAt = Date.now() + readMs;
+  io.to(sid).emit('quiz-phase', {
+    phase: 'read',
+    questionIndex: idx + 1,
+    questionTotal: qList.length,
+    text: String(q.text || '').trim(),
+    endsAt: sess.phaseEndsAt,
+  });
+  const t = setTimeout(() => scheduleQuizAnswerPhase(sid, space, md), readMs);
+  space.quizTimers.push(t);
+}
+
+function scheduleQuizAnswerPhase(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  const answerMs = (Number.isFinite(sess.answerMs) && sess.answerMs >= 1000) ? sess.answerMs : 5000;
+  sess.phase = 'answer';
+  sess.phaseEndsAt = Date.now() + answerMs;
+  io.to(sid).emit('quiz-phase', {
+    phase: 'answer',
+    questionIndex: sess.qIndex + 1,
+    questionTotal: sess.questions.length,
+    endsAt: sess.phaseEndsAt,
+  });
+  emitQuizPlayerStates(sid, space);
+  const t = setTimeout(() => resolveQuizRound(sid, space, md), answerMs);
+  space.quizTimers.push(t);
+}
+
+function resolveQuizRound(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  /* ใช้แผนที่ตอนเริ่มเกมเป็นหลัก — กัน getLobbyLayoutMapForSpace คืน lobby/zep แล้ว return ทิ้งทำให้ไม่มีคะแนน/ไม่เตะ */
+  const mdLive = sess.quizMapMd || getLobbyLayoutMapForSpace(space) || md;
+  if (!mdLive) return;
+  const idx = sess.qIndex;
+  const q = sess.questions[idx];
+  const correctTrue = !!q.answerTrue;
+  const tGrid = mdLive.quizTrueArea || [];
+  const fGrid = mdLive.quizFalseArea || [];
+
+  let eligibleCount = 0;
+  let anyRight = false;
+  const results = [];
+
+  const ejectMoves = [];
+
+  space.peers.forEach((p, peerId) => {
+    const st = sess.players[peerId];
+    if (!st) return;
+    eligibleCount++;
+    const tx = Math.floor(Number(p.x));
+    const ty = Math.floor(Number(p.y));
+    const inT = quizCellOn(tGrid, tx, ty);
+    const inF = quizCellOn(fGrid, tx, ty);
+    let choice = null;
+    if (inT && !inF) choice = true;
+    else if (inF && !inT) choice = false;
+    else if (inT && inF) choice = true;
+
+    let right = false;
+    if (choice === null) right = false;
+    else right = (choice === correctTrue);
+
+    if (right) {
+      st.score = (typeof st.score === 'number' ? st.score : 0) + QUIZ_TF_POINTS_PER_CORRECT;
+      anyRight = true;
+    }
+    /* ผิดทุกกรณี = ล็อกโซนจริงเท็จ + กลับจุดเกิด (สุ่มใน spawnArea ถ้ามี) */
+    if (!right) {
+      st.cannotTrue = true;
+      st.cannotFalse = true;
+      const joinOrd = typeof p.spawnJoinOrder === 'number' && Number.isFinite(p.spawnJoinOrder)
+        ? Math.max(0, Math.floor(p.spawnJoinOrder))
+        : [...space.peers.keys()].indexOf(peerId);
+      const pos = quizWrongAnswerRespawnPosition(mdLive, joinOrd);
+      p.x = pos.x;
+      p.y = pos.y;
+      ejectMoves.push({
+        id: peerId,
+        x: p.x,
+        y: p.y,
+        direction: p.direction || 'down',
+        characterId: p.characterId ?? null,
+      });
+    }
+
+    results.push({
+      id: peerId,
+      nickname: p.nickname || '',
+      right,
+      choice,
+      eliminated: !!st.eliminated,
+      score: typeof st.score === 'number' ? st.score : 0,
+    });
+  });
+
+  ejectMoves.forEach((ev) => {
+    io.to(sid).emit('user-move', ev);
+    try {
+      const sock = io.of('/').sockets && io.of('/').sockets.get(ev.id);
+      if (sock) sock.emit('user-move', ev);
+    } catch (e) { /* ignore */ }
+  });
+
+  const allWrong = eligibleCount > 0 && !anyRight;
+
+  const scores = {};
+  space.peers.forEach((_, peerId) => {
+    const st = sess.players[peerId];
+    scores[peerId] = st && typeof st.score === 'number' ? st.score : 0;
+  });
+
+  io.to(sid).emit('quiz-result', {
+    questionIndex: idx + 1,
+    correctTrue,
+    results,
+    allWrong,
+    scores,
+  });
+  emitQuizPlayerStates(sid, space);
+
+  /** ภารกิจสืบสวน / mng8a80o — เล่นครบ quizRoundQuestionCount แม้ทุกคนผิดข้อนี้ (เหมือน preview ไม่จบกลางรอบ) */
+  const playFullQuizRound =
+    !!space.detectiveMinigameActive || isQuizQuestionMissionShellSpace(space);
+  if (allWrong && !playFullQuizRound) {
+    endQuizGame(sid, space, 'จบเกม — ทุกคนตอบผิดข้อนี้');
+    return;
+  }
+
+  sess.qIndex++;
+  if (sess.qIndex >= sess.questions.length) {
+    endQuizGame(sid, space, 'จบเกม — ครบทุกข้อแล้ว');
+    return;
+  }
+
+  const betweenMs = (Number.isFinite(sess.betweenMs) && sess.betweenMs >= 0) ? sess.betweenMs : 3500;
+  const mapRef = sess.quizMapMd || md;
+  const t = setTimeout(() => scheduleQuizReadPhase(sid, space, mapRef), betweenMs);
+  space.quizTimers.push(t);
+}
+
+function startQuizGame(sid, space, md) {
+  clearSpaceQuizTimers(space);
+  const settings = loadQuizSettings();
+  const pool = getQuizQuestionPool(md);
+  const shuffled = shuffleQuizQuestions(pool);
+  const cap = clampQuizRoundQuestionCount(settings.quizRoundQuestionCount, 10);
+  const picked = shuffled.slice(0, Math.min(cap, shuffled.length));
+  const players = {};
+  space.peers.forEach((_, peerId) => {
+    players[peerId] = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+  });
+  space.quizSession = {
+    active: true,
+    questions: picked,
+    qIndex: 0,
+    phase: 'idle',
+    phaseEndsAt: 0,
+    readMs: settings.readMs,
+    answerMs: settings.answerMs,
+    betweenMs: settings.betweenMs,
+    players,
+    quizMapMd: md,
+  };
+  scheduleQuizReadPhase(sid, space, md);
+}
+
+function safeMapId(id) {
+  return (id || '').replace(/[^a-z0-9_-]/gi, '') || null;
+}
+
+/** กริด hub = 0/1 · option = 0 หรือเลขช่อง 1..QUIZ_CARRY_MAX_OPTION_SLOTS (ห้ามใช้กฎ === 1 กับ option — เลข 2–16หาย) */
+function normalizeQuizCarryLayersOnMap(m) {
+  if (!m || m.gameType !== 'quiz_carry') return;
+  const w = m.width || 20, h = m.height || 15;
+  const normHub = () => {
+    const src = m.quizCarryHubArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      rows.push(row);
+    }
+    m.quizCarryHubArea = rows;
+  };
+  const normOptions = () => {
+    const src = m.quizCarryOptionArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= QUIZ_CARRY_MAX_OPTION_SLOTS ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    m.quizCarryOptionArea = rows;
+  };
+  const normCountdown = () => {
+    const src = m.carryEmbedCountdownArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        row.push(Number(v) === 1 ? 1 : 0);
+      }
+      rows.push(row);
+    }
+    m.carryEmbedCountdownArea = rows;
+  };
+  normHub();
+  normOptions();
+  normCountdown();
+}
+
+/** กริดแพลตฟอร์มกระโดดให้รอด — 0/1 ต่อช่อง */
+function normalizeQuizBattleDomeAreaOnMap(m) {
+  if (!m || m.gameType !== 'quiz_battle') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.quizBattleDomeArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.quizBattleDomeArea = rows;
+}
+
+function normalizeQuizBattlePathAreaOnMap(m) {
+  if (!m || m.gameType !== 'quiz_battle') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.quizBattlePathArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.quizBattlePathArea = rows;
+}
+
+function quizBattlePathModeActiveServer(m) {
+  if (!m || m.gameType !== 'quiz_battle' || !m.quizBattlePathArea) return false;
+  const g = m.quizBattlePathArea;
+  for (let y = 0; y < g.length; y++) {
+    const row = g[y];
+    if (!row) continue;
+    for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+  }
+  return false;
+}
+
+function quizBattleFootprintFullyOnPathServer(m, px, py) {
+  if (!quizBattlePathModeActiveServer(m)) return true;
+  const g = m.quizBattlePathArea;
+  for (const k of quizCarryFootprintTileKeys(m, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (!g[ty] || g[ty][tx] !== 1) return false;
+  }
+  return true;
+}
+
+function serverFootprintClearOfWalls(md, px, py) {
+  const w = md.width || 20, h = md.height || 15;
+  for (const k of serverWallCollisionTileKeys(md, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+    const row = md.objects && md.objects[ty];
+    if (!row || row[tx] === 1) return false;
+  }
+  return true;
+}
+
+/** จุดใกล้สุดบนเส้นทาง ( footprint อยู่ใน path + ไม่ทับกำแพง ) — ใช้ตอน join / เริ่มเกม */
+function snapPositionOntoQuizBattlePathServer(md, px, py) {
+  if (!md || md.gameType !== 'quiz_battle' || !quizBattlePathModeActiveServer(md)) return { x: px, y: py };
+  if (quizBattleFootprintFullyOnPathServer(md, px, py) && serverFootprintClearOfWalls(md, px, py)) return { x: px, y: py };
+  const w = md.width || 20, h = md.height || 15;
+  const g = md.quizBattlePathArea;
+  let bestX = null, bestY = null, bestD = Infinity;
+  for (let ty = 0; ty < h; ty++) {
+    for (let tx = 0; tx < w; tx++) {
+      if (!g[ty] || g[ty][tx] !== 1) continue;
+      const nx = tx + 0.01;
+      const ny = ty + 0.01;
+      if (!quizBattleFootprintFullyOnPathServer(md, nx, ny)) continue;
+      if (!serverFootprintClearOfWalls(md, nx, ny)) continue;
+      const d = Math.abs(nx - px) + Math.abs(ny - py);
+      if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+    }
+  }
+  if (bestX != null) return { x: bestX, y: bestY };
+  for (let ty = 0; ty < h; ty++) {
+    for (let tx = 0; tx < w; tx++) {
+      if (!g[ty] || g[ty][tx] !== 1) continue;
+      const row = md.objects && md.objects[ty];
+      if (!row || row[tx] === 1) continue;
+      const nx = tx + 0.5;
+      const ny = ty + 0.5;
+      const d = Math.abs(nx - px) + Math.abs(ny - py);
+      if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+    }
+  }
+  if (bestX != null) return { x: bestX, y: bestY };
+  return { x: px, y: py };
+}
+
+function normalizeJumpSurvivePlatformAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.jumpSurvivePlatformArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.jumpSurvivePlatformArea = rows;
+}
+
+function normalizeJumpSurvivePlatformVariantAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const pa = m.jumpSurvivePlatformArea || [];
+  const src = m.jumpSurvivePlatformVariantArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const row = [];
+    for (let x = 0; x < w; x++) {
+      const has = pa[y] && pa[y][x] === 1;
+      let v = has ? Math.floor(Number(src[y] && src[y][x])) : 0;
+      if (has && (!Number.isFinite(v) || v < 1)) v = 1;
+      if (v > 3) v = 3;
+      if (!has) v = 0;
+      row.push(v);
+    }
+    rows.push(row);
+  }
+  m.jumpSurvivePlatformVariantArea = rows;
+}
+
+function normalizeJumpSurviveHazardAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.jumpSurviveHazardArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.jumpSurviveHazardArea = rows;
+}
+
+/**
+ * แมปภารกิจ Stack Tower (`mnn93hpi`): ปิดกล้องตามหอเสมอ · คลีน/จำกัดค่า stackTowerBgScroll (intro+loop แนวตั้ง) จาก JSON
+ */
+function applyStackTowerMissionMapPlayPolicy(safeId, m) {
+  if (safeId !== STACK_TOWER_MISSION_MAP_ID || !m || m.gameType !== 'stack') return;
+  const raw = m.stackTowerBgScroll && typeof m.stackTowerBgScroll === 'object' ? m.stackTowerBgScroll : {};
+  const dirRaw = String(raw.scrollDirection || raw.direction || 'down').toLowerCase();
+  const scrollDirection = (dirRaw === 'down' || dirRaw === 'top' || dirRaw === 'toptobottom') ? 'down' : 'up';
+  const spNum = Number(raw.speedPxPerSec);
+  const speedPxPerSec = Number.isFinite(spNum)
+    ? Math.max(0, Math.min(400, Math.floor(spNum)))
+    : 0;
+  const sel = Math.floor(Number(raw.stepEveryLayers));
+  const stepEveryLayers = Number.isFinite(sel) ? Math.max(0, Math.min(200, sel)) : 0;
+  const ssp = Math.floor(Number(raw.stepScrollPx));
+  const stepScrollPx = Number.isFinite(ssp) ? Math.max(0, Math.min(8000, ssp)) : 0;
+  const sam = Math.floor(Number(raw.stepAnimMs));
+  const stepAnimMs = Number.isFinite(sam) ? Math.max(120, Math.min(4000, sam)) : 520;
+  const st = {
+    enabled: raw.enabled === true,
+    speedPxPerSec,
+    scrollDirection,
+    stepEveryLayers,
+    stepScrollPx,
+    stepAnimMs,
+  };
+  if (typeof raw.introImage === 'string' && raw.introImage.length) st.introImage = raw.introImage;
+  if (typeof raw.loopImage === 'string' && raw.loopImage.length) st.loopImage = raw.loopImage;
+  const rg = Number(raw.releaseGapWorldPx);
+  if (Number.isFinite(rg) && rg >= 0) st.releaseGapWorldPx = Math.min(800, Math.floor(rg));
+  m.stackTowerBgScroll = st;
+  const rawCf = m.stackTowerCameraFollow && typeof m.stackTowerCameraFollow === 'object' ? m.stackTowerCameraFollow : {};
+  const pxPerLayer = Math.max(0, Math.min(80, Math.floor(Number(rawCf.pxPerLayer)) || 12));
+  const maxPx = Math.max(0, Math.min(800, Math.floor(Number(rawCf.maxPx)) || 260));
+  m.stackTowerCameraFollow = { enabled: false, pxPerLayer, maxPx };
+}
+
+function loadMaps() {
+  try {
+    if (!fs.existsSync(path.join(__dirname, 'data'))) fs.mkdirSync(path.join(__dirname, 'data'), { recursive: true });
+    if (!fs.existsSync(MAPS_DIR)) fs.mkdirSync(MAPS_DIR, { recursive: true });
+    if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+    const files = fs.readdirSync(MAPS_DIR);
+    for (const f of files) {
+      if (!f.endsWith('.json')) continue;
+      const id = f.slice(0, -5);
+      if (!safeMapId(id)) continue;
+      try {
+        const data = JSON.parse(fs.readFileSync(path.join(MAPS_DIR, f), 'utf8'));
+        normalizeQuizCarryLayersOnMap(data);
+        normalizeJumpSurvivePlatformAreaOnMap(data);
+        normalizeJumpSurvivePlatformVariantAreaOnMap(data);
+        normalizeJumpSurviveHazardAreaOnMap(data);
+        normalizeQuizBattleDomeAreaOnMap(data);
+        normalizeQuizBattlePathAreaOnMap(data);
+        applyStackTowerMissionMapPlayPolicy(id, data);
+        maps.set(id, data);
+      } catch (e) { console.error('load map', f, e.message); }
+    }
+  } catch (e) { console.error('loadMaps', e.message); }
+}
+
+/**
+ * อ่านแมปหนึ่งไฟล์จากดิสก์เข้า `maps` — ใช้ตอน GET /api/maps/:id เพื่อให้ deploy แก้ JSON แล้วมีผลทันที
+ * (เดิมโหลดครั้งเดียวตอนบูต · ถ้าแก้ไฟล์แล้วไม่รีสตาร์ท Node ลูกค้าได้ข้อมูลเก่า)
+ */
+function rehydrateSingleMapFromDisk(safeId) {
+  if (!safeId) return false;
+  const fp = path.join(MAPS_DIR, safeId + '.json');
+  if (!fs.existsSync(fp)) return false;
+  try {
+    const data = JSON.parse(fs.readFileSync(fp, 'utf8'));
+    normalizeQuizCarryLayersOnMap(data);
+    normalizeJumpSurvivePlatformAreaOnMap(data);
+    normalizeJumpSurvivePlatformVariantAreaOnMap(data);
+    normalizeJumpSurviveHazardAreaOnMap(data);
+    normalizeQuizBattleDomeAreaOnMap(data);
+    normalizeQuizBattlePathAreaOnMap(data);
+    applyStackTowerMissionMapPlayPolicy(safeId, data);
+    maps.set(safeId, data);
+    return true;
+  } catch (e) {
+    console.error('rehydrate map', safeId, e.message);
+    return false;
+  }
+}
+
+/** โหลด LobbyB จากไฟล์อีกครั้งถ้ายังไม่อยู่ใน memory (หลังรีสตาร์ท / ไฟล์เพิ่งวาง) */
+function ensurePostCaseLobbyMapLoaded() {
+  if (maps.has(POST_CASE_LOBBY_SPACE_ID)) return true;
+  try {
+    const fp = path.join(MAPS_DIR, POST_CASE_LOBBY_SPACE_ID + '.json');
+    if (!fs.existsSync(fp)) return false;
+    const data = JSON.parse(fs.readFileSync(fp, 'utf8'));
+    normalizeQuizCarryLayersOnMap(data);
+    maps.set(POST_CASE_LOBBY_SPACE_ID, data);
+    return true;
+  } catch (e) {
+    console.error('ensurePostCaseLobbyMapLoaded', e.message);
+    return false;
+  }
+}
+
+function saveMap(id, m) {
+  const safe = safeMapId(id);
+  if (!safe) return;
+  try {
+    if (!fs.existsSync(MAPS_DIR)) fs.mkdirSync(MAPS_DIR, { recursive: true });
+    fs.writeFileSync(path.join(MAPS_DIR, safe + '.json'), JSON.stringify(m, null, 0), 'utf8');
+  } catch (e) { console.error('saveMap', id, e.message); }
+}
+
+function isMapNameTaken(name, excludeId) {
+  const n = (name || '').trim().toLowerCase();
+  for (const [id, m] of maps) if (id !== excludeId && (m.name || '').trim().toLowerCase() === n) return true;
+  return false;
+}
+
+function applyDevCors(req, res) {
+  const origin = req.headers.origin;
+  if (origin && /^https?:\/\/(localhost|127\.0\.0\.1)(:\d+)?$/i.test(origin)) {
+    res.setHeader('Access-Control-Allow-Origin', origin);
+    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, PATCH, DELETE, OPTIONS');
+    res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
+    res.setHeader('Vary', 'Origin');
+  }
+}
+
+const server = http.createServer((req, res) => {
+  applyDevCors(req, res);
+  if (req.method === 'OPTIONS' && req.url && req.url.indexOf(BASE_PATH + '/api') === 0) {
+    res.writeHead(204);
+    res.end();
+    return;
+  }
+  let url = req.url;
+  if (url === BASE_PATH || url === BASE_PATH + '/') url = BASE_PATH + '/index.html';
+  if (url.startsWith(BASE_PATH + '/api/maps')) {
+    let id = url.replace(BASE_PATH + '/api/maps/', '').replace(BASE_PATH + '/api/maps', '').replace(/^\//, '').split('/')[0];
+    if (id.includes('?')) id = id.split('?')[0];
+    if (req.method === 'GET' && id) {
+      const sid = safeMapId(decodeURIComponent(id));
+      if (!sid) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบฉาก' }));
+      rehydrateSingleMapFromDisk(sid);
+      const m = maps.get(sid);
+      if (!m) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบฉาก' }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(m));
+    }
+    if (req.method === 'GET' && !id) {
+      const list = [...maps].map(([id, m]) => ({ id, name: m.name }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(list));
+    }
+    if (req.method === 'POST' && url === BASE_PATH + '/api/maps' || url === BASE_PATH + '/api/maps/') {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body);
+          const name = (d.name || '').trim() || 'ฉากใหม่';
+          if (isMapNameTaken(name)) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ชื่อฉากซ้ำ กรุณาตั้งชื่ออื่น' }));
+          const id = Date.now().toString(36);
+          const m = { ...defaultMap(), ...d, name };
+          if (!m.blockPlayer) m.blockPlayer = [];
+          if (!m.interactive) m.interactive = [];
+          if (!m.startGameArea) m.startGameArea = [];
+          if (!m.spawnArea) m.spawnArea = [];
+          if (!m.quizTrueArea) m.quizTrueArea = [];
+          if (!m.quizFalseArea) m.quizFalseArea = [];
+          if (!m.quizQuestionArea) m.quizQuestionArea = [];
+          if (!m.quizQuestions) m.quizQuestions = [];
+          if (!m.quizCarryHubArea) m.quizCarryHubArea = [];
+          if (!m.quizCarryOptionArea) m.quizCarryOptionArea = [];
+          if (!m.carryEmbedCountdownArea) m.carryEmbedCountdownArea = [];
+          if (!m.quizBattleDomeArea) m.quizBattleDomeArea = [];
+          if (!m.quizBattlePathArea) m.quizBattlePathArea = [];
+          if (!m.stackReleaseArea) m.stackReleaseArea = [];
+          if (!m.stackLandArea) m.stackLandArea = [];
+          if (!Array.isArray(m.jumpSurvivePlatforms)) m.jumpSurvivePlatforms = [];
+          if (!m.jumpSurvivePlatformArea) m.jumpSurvivePlatformArea = [];
+          if (!m.jumpSurvivePlatformVariantArea) m.jumpSurvivePlatformVariantArea = [];
+          if (!m.jumpSurviveHazardArea) m.jumpSurviveHazardArea = [];
+          normalizeQuizCarryLayersOnMap(m);
+          normalizeJumpSurvivePlatformAreaOnMap(m);
+          normalizeJumpSurvivePlatformVariantAreaOnMap(m);
+          normalizeJumpSurviveHazardAreaOnMap(m);
+          normalizeQuizBattleDomeAreaOnMap(m);
+          normalizeQuizBattlePathAreaOnMap(m);
+          maps.set(id, m);
+          saveMap(id, m);
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, mapId: id }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    if (req.method === 'PUT' && id && maps.has(id)) {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body);
+          const name = (d.name || '').trim() || maps.get(id).name;
+          if (isMapNameTaken(name, id)) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ชื่อฉากซ้ำ กรุณาตั้งชื่ออื่น' }));
+          const m = { ...maps.get(id), ...d, name };
+          if (!m.blockPlayer) m.blockPlayer = [];
+          if (!m.interactive) m.interactive = [];
+          if (!m.startGameArea) m.startGameArea = [];
+          if (!m.spawnArea) m.spawnArea = [];
+          if (!m.quizTrueArea) m.quizTrueArea = [];
+          if (!m.quizFalseArea) m.quizFalseArea = [];
+          if (!m.quizQuestionArea) m.quizQuestionArea = [];
+          if (!m.quizQuestions) m.quizQuestions = [];
+          if (!m.quizCarryHubArea) m.quizCarryHubArea = [];
+          if (!m.quizCarryOptionArea) m.quizCarryOptionArea = [];
+          if (!m.carryEmbedCountdownArea) m.carryEmbedCountdownArea = [];
+          if (!m.quizBattleDomeArea) m.quizBattleDomeArea = [];
+          if (!m.quizBattlePathArea) m.quizBattlePathArea = [];
+          if (!m.stackReleaseArea) m.stackReleaseArea = [];
+          if (!m.stackLandArea) m.stackLandArea = [];
+          if (!Array.isArray(m.jumpSurvivePlatforms)) m.jumpSurvivePlatforms = [];
+          if (!m.jumpSurvivePlatformArea) m.jumpSurvivePlatformArea = [];
+          if (!m.jumpSurvivePlatformVariantArea) m.jumpSurvivePlatformVariantArea = [];
+          if (!m.jumpSurviveHazardArea) m.jumpSurviveHazardArea = [];
+          normalizeQuizCarryLayersOnMap(m);
+          normalizeJumpSurvivePlatformAreaOnMap(m);
+          normalizeJumpSurvivePlatformVariantAreaOnMap(m);
+          normalizeJumpSurviveHazardAreaOnMap(m);
+          normalizeQuizBattleDomeAreaOnMap(m);
+          normalizeQuizBattlePathAreaOnMap(m);
+          applyStackTowerMissionMapPlayPolicy(id, m);
+          maps.set(id, m);
+          saveMap(id, m);
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, mapId: id }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+  }
+  const quizCarryDiskUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  const quizCarryDiskPaths = new Set([
+    BASE_PATH + '/api/quiz-carry-from-disk',
+    BASE_PATH + '/api-quiz-carry-from-disk.php',
+  ]);
+  if (quizCarryDiskPaths.has(quizCarryDiskUrlPath)) {
+    if (req.method === 'GET') {
+      const g = loadQuizSettings();
+      const slice = {
+        carryMapPanelTheme: g.carryMapPanelTheme,
+        carryEmbedCountdownTheme: g.carryEmbedCountdownTheme,
+        carryChoicePlaqueThemes: g.carryChoicePlaqueThemes,
+        carryChoicePlaqueTheme: g.carryChoicePlaqueTheme,
+        carryChoicePlaqueMapScale: g.carryChoicePlaqueMapScale,
+        carryReadMs: g.carryReadMs,
+        carryAnswerMs: g.carryAnswerMs,
+        carrySessionLength: g.carrySessionLength,
+        carryWalkSpeedMultForMapId: g.carryWalkSpeedMultForMapId,
+        carryWalkSpeedMult: g.carryWalkSpeedMult,
+        carryQuestions: g.carryQuestions,
+      };
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(slice));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const quizSettingsUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (quizSettingsUrlPath === BASE_PATH + '/api/quiz-settings') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadQuizSettings()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveQuizSettings(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({
+            ok: true,
+            battleQuizMcqSaved: saved.battleQuizMcqSaved,
+            carryQuestionsSaved: saved.carryQuestionsSaved,
+            specialQuizSets: saved.specialQuizSets,
+            carryMapPanelTheme: saved.carryMapPanelTheme,
+            carryEmbedCountdownTheme: saved.carryEmbedCountdownTheme,
+            carryChoicePlaqueThemes: saved.carryChoicePlaqueThemes,
+            carryChoicePlaqueTheme: saved.carryChoicePlaqueTheme,
+            carryChoicePlaqueMapScale: saved.carryChoicePlaqueMapScale,
+          }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const evidenceCardsUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (evidenceCardsUrlPath === BASE_PATH + '/api/evidence-cards') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadEvidenceCards()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveEvidenceCards(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({ ok: true, cases: saved.cases }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const evidenceImagesUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (evidenceImagesUrlPath === BASE_PATH + '/api/evidence-card-images') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify({ images: listEvidenceCardImages(), pools: evidencePoolCounts(), dirs: EVIDENCE_IMAGE_DIRS }));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const caseMediaUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (caseMediaUrlPath === BASE_PATH + '/api/case-media') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadCaseMedia()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveCaseMedia(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({ ok: true, cases: saved.cases }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const caseMediaImagesUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (caseMediaImagesUrlPath === BASE_PATH + '/api/case-media-images') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify({ images: listCaseMediaImages(), count: CASE_MEDIA_COUNT }));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const gameTimingUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (gameTimingUrlPath === BASE_PATH + '/api/game-timing') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        'Pragma': 'no-cache',
+      });
+      return res.end(JSON.stringify({ ...runtimeGameTiming }));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        res.setHeader('Cache-Control', 'no-store');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveGameTimingToFile(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          const { ok: _ok, error: _err, ...timingRest } = saved;
+          return res.end(JSON.stringify({ ok: true, ...timingRest }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const gaAssetsApiPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'GET') {
+    res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+    return res.end(JSON.stringify({ ok: true, items: listGauntletAssetsApi() }));
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets/upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const dataUrl = d.imageDataUrl;
+        if (!dataUrl || typeof dataUrl !== 'string') {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ต้องส่ง imageDataUrl (data URL รูป)' }));
+        }
+        const m = dataUrl.match(/^data:image\/(png|jpeg|jpg|gif|webp);base64,([\s\S]+)$/i);
+        if (!m) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'รองรับเฉพาะ png / jpg / gif / webp' }));
+        }
+        const extRaw = m[1].toLowerCase();
+        const ext = extRaw === 'jpeg' ? 'jpg' : extRaw;
+        const b64 = m[2].replace(/\s/g, '');
+        let buf;
+        try {
+          buf = Buffer.from(b64, 'base64');
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'base64 ไม่ถูกต้อง' }));
+        }
+        if (buf.length < 16 || buf.length > 4 * 1024 * 1024) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ขนาดไฟล์ต้องอยู่ระหว่าง 16 ไบต์ ถึง 4 MB' }));
+        }
+        ensureGauntletAssetsDir();
+        const labelIn = d.label != null ? String(d.label).trim().slice(0, 120) : '';
+        const replaceFilename = d.replaceFilename != null ? String(d.replaceFilename) : '';
+        let fname;
+        if (replaceFilename) {
+          const s = safeGauntletStoredFilename(replaceFilename);
+          if (!s) {
+            res.writeHead(400);
+            return res.end(JSON.stringify({ ok: false, error: 'ชื่อไฟล์แทนที่ไม่ถูกต้อง' }));
+          }
+          const cur = path.join(GAUNTLET_ASSETS_DIR, s);
+          if (!fs.existsSync(cur)) {
+            res.writeHead(404);
+            return res.end(JSON.stringify({ ok: false, error: 'ไม่พบไฟล์เดิม' }));
+          }
+          const norm = (e) => {
+            let x = String(e || '').toLowerCase();
+            if (x.startsWith('.')) x = x.slice(1);
+            return x === 'jpeg' ? 'jpg' : x;
+          };
+          if (norm(path.extname(s)) !== norm(ext)) {
+            res.writeHead(400);
+            return res.end(JSON.stringify({ ok: false, error: 'นามสกุลรูปใหม่ต้องตรงกับไฟล์เดิม' }));
+          }
+          fname = s;
+        } else {
+          fname = `gauntlet-${crypto.randomBytes(8).toString('hex')}.${ext}`;
+        }
+        fs.writeFileSync(path.join(GAUNTLET_ASSETS_DIR, fname), buf);
+        const meta = loadGauntletAssetsMeta();
+        const prev = meta[fname] || {};
+        meta[fname] = {
+          ...prev,
+          label: labelIn || prev.label || fname,
+          updatedAt: Date.now(),
+        };
+        saveGauntletAssetsMeta(meta);
+        res.writeHead(200);
+        return res.end(JSON.stringify({
+          ok: true,
+          filename: fname,
+          url: BASE_PATH + '/img/gauntlet-assets/' + fname,
+        }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  const qCarryPlaqueUploadPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (qCarryPlaqueUploadPath === BASE_PATH + '/api/quiz-carry-plaque-upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const dataUrl = d.imageDataUrl;
+        if (!dataUrl || typeof dataUrl !== 'string') {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ต้องส่ง imageDataUrl (data URL รูป)' }));
+        }
+        const m = dataUrl.match(/^data:image\/(png|jpeg|jpg|gif|webp);base64,([\s\S]+)$/i);
+        if (!m) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'รองรับเฉพาะ png / jpg / gif / webp' }));
+        }
+        const extRaw = m[1].toLowerCase();
+        const ext = extRaw === 'jpeg' ? 'jpg' : extRaw;
+        const b64 = m[2].replace(/\s/g, '');
+        let buf;
+        try {
+          buf = Buffer.from(b64, 'base64');
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'base64 ไม่ถูกต้อง' }));
+        }
+        if (buf.length < 16 || buf.length > 4 * 1024 * 1024) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ขนาดไฟล์ต้องอยู่ระหว่าง 16 ไบต์ ถึง 4 MB' }));
+        }
+        ensureQuizCarryPlaqueAssetsDir();
+        const fname = `qcarry-${crypto.randomBytes(8).toString('hex')}.${ext}`;
+        fs.writeFileSync(path.join(QUIZ_CARRY_PLAQUE_ASSETS_DIR, fname), buf);
+        res.writeHead(200);
+        return res.end(JSON.stringify({
+          ok: true,
+          filename: fname,
+          url: BASE_PATH + '/img/quiz-carry-plaque-assets/' + fname,
+        }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'PATCH') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const fname = safeGauntletStoredFilename(d.filename);
+        if (!fname) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'filename ไม่ถูกต้อง' }));
+        }
+        const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+        if (!fs.existsSync(fp)) {
+          res.writeHead(404);
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่พบไฟล์' }));
+        }
+        const meta = loadGauntletAssetsMeta();
+        const label = d.label != null ? String(d.label).trim().slice(0, 120) : '';
+        meta[fname] = { ...(meta[fname] || {}), label: label || fname, updatedAt: Date.now() };
+        saveGauntletAssetsMeta(meta);
+        res.writeHead(200);
+        return res.end(JSON.stringify({ ok: true, filename: fname, label: meta[fname].label }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: e.message || 'บันทึกไม่ได้' }));
+      }
+    });
+    return;
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'DELETE') {
+    try {
+      const q = url.includes('?') ? url.split('?')[1] : '';
+      const sp = new URLSearchParams(q);
+      const rawFn = sp.get('file');
+      const fname = safeGauntletStoredFilename(rawFn);
+      if (!fname) {
+        res.writeHead(400, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: 'ระบุ file ไม่ถูกต้อง' }));
+      }
+      const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+      if (fs.existsSync(fp)) fs.unlinkSync(fp);
+      const meta = loadGauntletAssetsMeta();
+      delete meta[fname];
+      saveGauntletAssetsMeta(meta);
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: true }));
+    } catch (e) {
+      res.writeHead(500, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: false, error: 'ลบไม่สำเร็จ' }));
+    }
+  }
+  if (url === BASE_PATH + '/api/characters' && req.method === 'GET') {
+    try {
+      if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+      const files = fs.readdirSync(CHARACTERS_DIR);
+      const ids = new Set();
+      const ext = /\.(png|jpg|jpeg|gif|webp)$/i;
+      files.forEach(f => {
+        let m = f.match(/^(.+)_(up|down|left|right)(?:_\d+)?\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)(?:_\d+)?_layer_[a-zA-Z]+\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)_idle(?:_\d+)?_layer_[a-zA-Z]+\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)_idle(?:_\d+)?\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+      });
+      const idArr = [...ids];
+      const oldestMsById = {};
+      idArr.forEach((id) => {
+        let oldest = Infinity;
+        const prefix = id + '_';
+        files.forEach((f) => {
+          if (!f.startsWith(prefix) || !ext.test(f)) return;
+          try {
+            const st = fs.statSync(path.join(CHARACTERS_DIR, f));
+            const t = st.mtimeMs != null ? st.mtimeMs : st.mtime.getTime();
+            if (t < oldest) oldest = t;
+          } catch (e) { /* ignore */ }
+        });
+        oldestMsById[id] = oldest === Infinity ? 0 : oldest;
+      });
+      idArr.sort((a, b) => {
+        const ta = oldestMsById[a] || 0;
+        const tb = oldestMsById[b] || 0;
+        if (ta !== tb) return ta - tb;
+        return String(a).localeCompare(String(b));
+      });
+      const list = idArr.map((id) => {
+        const prefix = id + '_';
+        const hasLayerFiles = files.some((f) => f.startsWith(prefix) && f.includes('_layer_') && ext.test(f));
+        const layerNameSet = new Set();
+        if (hasLayerFiles) {
+          files.forEach((f) => {
+            if (!f.startsWith(prefix) || !ext.test(f)) return;
+            let m = f.match(/_(?:up|down|left|right)_idle(?:_\d+)?_layer_([a-zA-Z]+)\.[^.]+$/i);
+            if (m) {
+              layerNameSet.add(m[1]);
+              return;
+            }
+            m = f.match(/_(?:up|down|left|right)(?:_\d+)?_layer_([a-zA-Z]+)\.[^.]+$/i);
+            if (m) layerNameSet.add(m[1]);
+          });
+        }
+        const layers = layerNameSet.size ? [...layerNameSet].sort() : [];
+        const layerManifest = hasLayerFiles ? buildCharacterLayerManifest(id, files) : null;
+        return { id, name: id, hasLayerFiles, layers, layerManifest };
+      });
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify(list));
+    } catch (e) {
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify([]));
+    }
+  }
+  const urlPath = url.split('?')[0];
+  {
+    const lm = urlPath.match(new RegExp('^' + String(BASE_PATH).replace(/\//g, '\\/') + '\\/api\\/characters\\/([^/]+)\\/layer-manifest$'));
+    if (lm && req.method === 'GET') {
+      const id = decodeURIComponent(lm[1] || '').replace(/[^a-z0-9_-]/gi, '');
+      if (!id) {
+        res.writeHead(400, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: 'id ไม่ถูกต้อง', byDir: {}, byDirIdle: {} }));
+      }
+      try {
+        if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+        const files = fs.readdirSync(CHARACTERS_DIR);
+        const manifest = buildCharacterLayerManifest(id, files);
+        res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify(manifest));
+      } catch (e) {
+        res.writeHead(500, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: e.message || 'manifest fail', byDir: {}, byDirIdle: {} }));
+      }
+    }
+  }
+  if (urlPath.startsWith(BASE_PATH + '/api/characters/') && req.method === 'DELETE') {
+    if (/\/layer-manifest$/i.test(urlPath)) {
+      res.writeHead(405, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: false, error: 'ใช้ GET เท่านั้น' }));
+    }
+    const idRaw = decodeURIComponent(urlPath.slice((BASE_PATH + '/api/characters/').length));
+    const id = (idRaw || '').replace(/[^a-z0-9_-]/gi, '');
+    if (!id) {
+      res.writeHead(400, { 'Content-Type': 'application/json' });
+      return res.end(JSON.stringify({ ok: false, error: 'id ไม่ถูกต้อง' }));
+    }
+    try {
+      if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+      const files = fs.readdirSync(CHARACTERS_DIR);
+      const esc = id.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
+      const re = new RegExp('^' + esc + '_(up|down|left|right)(?:_\\d+)?\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const idleRe = new RegExp('^' + esc + '_(up|down|left|right)_idle(?:_\\d+)?\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const layerRe = new RegExp('^' + esc + '_(up|down|left|right)(?:_\\d+)?_layer_[a-zA-Z]+\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const layerIdleRe = new RegExp('^' + esc + '_(up|down|left|right)_idle(?:_\\d+)?_layer_[a-zA-Z]+\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      let removed = 0;
+      files.forEach(f => {
+        if (re.test(f) || idleRe.test(f) || layerRe.test(f) || layerIdleRe.test(f)) {
+          try {
+            fs.unlinkSync(path.join(CHARACTERS_DIR, f));
+            removed++;
+          } catch (e) {
+            // ignore single file errors
+          }
+        }
+      });
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ ok: true, removed }));
+    } catch (e) {
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ ok: false, error: 'ลบไม่สำเร็จ: ' + (e.message || '') }));
+    }
+    return;
+  }
+  if (urlPath === BASE_PATH + '/api/characters/upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      try {
+        if (!body || body.length < 2) {
+          res.writeHead(400, { 'Content-Type': 'application/json' });
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่มีข้อมูล (เลือกรูปแล้วกดอัปโหลด)' }));
+        }
+        const d = JSON.parse(body);
+        const dirs = ['up', 'down', 'left', 'right'];
+        const id = (d.name || '').trim().replace(/[^a-z0-9_-]/gi, '') || 'char-' + Date.now();
+        if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+        const ALLOWED_LAYER = { shadow: 1, bodyColor: 1, bodyStroke: 1, headColor: 1, headStroke: 1, hairColor: 1, hairStroke: 1, face: 1 };
+        let walkWritten = 0;
+        for (const dir of dirs) {
+          let data = d[dir];
+          if (!data) continue;
+          const list = Array.isArray(data) ? data : [data];
+          let frameIndex = 0;
+          for (const dataUrl of list) {
+            if (!dataUrl || typeof dataUrl !== 'string') continue;
+            const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+            if (!m) continue;
+            const b64 = m[1].replace(/\s/g, '');
+            if (!b64.length) continue;
+            let buf;
+            try {
+              buf = Buffer.from(b64, 'base64');
+            } catch (err) {
+              continue;
+            }
+            if (buf.length === 0) continue;
+            // เขียนไฟล์เฟรม (สำหรับ animation)
+            const fnameFrame = list.length > 1 ? (id + '_' + dir + '_' + frameIndex + '.png') : (id + '_' + dir + '.png');
+            fs.writeFileSync(path.join(CHARACTERS_DIR, fnameFrame), buf);
+            // ถ้ามีหลายเฟรม ให้เฟรมแรกซ้ำไปเป็นไฟล์หลัก <id>_<dir>.png เพื่อใช้เป็น preview / fallback
+            if (list.length > 1 && frameIndex === 0) {
+              const baseName = id + '_' + dir + '.png';
+              fs.writeFileSync(path.join(CHARACTERS_DIR, baseName), buf);
+            }
+            walkWritten++;
+            frameIndex++;
+          }
+        }
+        let layerWritten = 0;
+        // ไฟล์เลเยอร์แยก (ให้หน้า play ย้อม bodyColor / hairColor / headColor ตามส่วน — ตรงกับ character.html)
+        const lf = d.layerFrames;
+        if (lf && typeof lf === 'object') {
+          for (const dir of dirs) {
+            const arr = lf[dir];
+            if (!Array.isArray(arr)) continue;
+            const multi = arr.length > 1;
+            arr.forEach((frameObj, frameIndex) => {
+              if (!frameObj || typeof frameObj !== 'object') return;
+              for (const layerName of Object.keys(frameObj)) {
+                if (!ALLOWED_LAYER[layerName]) continue;
+                const dataUrl = frameObj[layerName];
+                if (!dataUrl || typeof dataUrl !== 'string') continue;
+                const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+                if (!m) continue;
+                const b64 = m[1].replace(/\s/g, '');
+                if (!b64.length) continue;
+                let buf;
+                try {
+                  buf = Buffer.from(b64, 'base64');
+                } catch (err) {
+                  continue;
+                }
+                if (buf.length === 0) continue;
+                const fnameLayer = multi
+                  ? (id + '_' + dir + '_' + frameIndex + '_layer_' + layerName + '.png')
+                  : (id + '_' + dir + '_layer_' + layerName + '.png');
+                fs.writeFileSync(path.join(CHARACTERS_DIR, fnameLayer), buf);
+                layerWritten++;
+              }
+            });
+          }
+        }
+        const lfIdle = d.layerFramesIdle;
+        if (lfIdle && typeof lfIdle === 'object') {
+          for (const dir of dirs) {
+            const arr = lfIdle[dir];
+            if (!Array.isArray(arr)) continue;
+            const multi = arr.length > 1;
+            arr.forEach((frameObj, frameIndex) => {
+              if (!frameObj || typeof frameObj !== 'object') return;
+              for (const layerName of Object.keys(frameObj)) {
+                if (!ALLOWED_LAYER[layerName]) continue;
+                const dataUrl = frameObj[layerName];
+                if (!dataUrl || typeof dataUrl !== 'string') continue;
+                const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+                if (!m) continue;
+                const b64 = m[1].replace(/\s/g, '');
+                if (!b64.length) continue;
+                let buf;
+                try {
+                  buf = Buffer.from(b64, 'base64');
+                } catch (err) {
+                  continue;
+                }
+                if (buf.length === 0) continue;
+                const fnameLayer = multi
+                  ? (id + '_' + dir + '_idle_' + frameIndex + '_layer_' + layerName + '.png')
+                  : (id + '_' + dir + '_idle_layer_' + layerName + '.png');
+                fs.writeFileSync(path.join(CHARACTERS_DIR, fnameLayer), buf);
+                layerWritten++;
+              }
+            });
+          }
+        }
+        const idleObj = d.idle && typeof d.idle === 'object' ? d.idle : null;
+        if (idleObj) {
+          for (const dir of dirs) {
+            let data = idleObj[dir];
+            if (!data) continue;
+            const list = Array.isArray(data) ? data : [data];
+            let frameIndex = 0;
+            for (const dataUrl of list) {
+              if (!dataUrl || typeof dataUrl !== 'string') continue;
+              const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+              if (!m) continue;
+              const b64 = m[1].replace(/\s/g, '');
+              if (!b64.length) continue;
+              let buf;
+              try {
+                buf = Buffer.from(b64, 'base64');
+              } catch (err) {
+                continue;
+              }
+              if (buf.length === 0) continue;
+              const fnameFrame = list.length > 1
+                ? (id + '_' + dir + '_idle_' + frameIndex + '.png')
+                : (id + '_' + dir + '_idle.png');
+              fs.writeFileSync(path.join(CHARACTERS_DIR, fnameFrame), buf);
+              if (list.length > 1 && frameIndex === 0) {
+                const baseName = id + '_' + dir + '_idle.png';
+                fs.writeFileSync(path.join(CHARACTERS_DIR, baseName), buf);
+              }
+              frameIndex++;
+            }
+          }
+        }
+        if (walkWritten === 0 && layerWritten === 0) {
+          res.writeHead(400, { 'Content-Type': 'application/json' });
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่มีรูปที่อัปโหลดได้ (ต้องมีรูปเดินหรือเลเยอร์อย่างน้อยหนึ่งทิศ)' }));
+        }
+        res.writeHead(200, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ ok: true, characterId: id }));
+      } catch (e) {
+        res.writeHead(400, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  if (url.startsWith(BASE_PATH + '/api/spaces')) {
+    const parts = url.slice((BASE_PATH + '/api/spaces').length).split('/').filter(Boolean);
+    const spaceId = parts[0];
+    if (req.method === 'GET' && !spaceId) {
+      const now = Date.now();
+      for (const [id, s] of [...spaces.entries()]) {
+        if (s.isPrivate || id === POST_CASE_LOBBY_SPACE_ID) continue;
+        const n = s.peers ? s.peers.size : 0;
+        if (n !== 0) continue;
+        const created = s.createdAt;
+        const stale = created == null || now - created > SPACE_EMPTY_TTL_MS;
+        if (stale) spaces.delete(id);
+      }
+      const list = [...spaces]
+        .filter(([, s]) => !s.isPrivate)
+        .filter(([, s]) => (s.peers && s.peers.size > 0))
+        .map(([id, s]) => ({
+          spaceId: id,
+          spaceName: s.spaceName || id,
+          mapName: (s.mapData && s.mapData.name) || '—',
+          peerCount: s.peers ? s.peers.size : 0,
+          maxPlayers: s.maxPlayers || 10
+        }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(list));
+    }
+    if (req.method === 'GET' && spaceId) {
+      const s = spaces.get(spaceId);
+      if (!s) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบห้อง' }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify({ ok: true, mapName: s.mapData?.name }));
+    }
+    if (req.method === 'POST' && !spaceId) {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body || '{}');
+          const mapData = d.mapId ? maps.get(d.mapId) : null;
+          if (!mapData) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ไม่พบฉาก' }));
+          const isPrivate = !!d.isPrivate;
+          let sid;
+          if (isPrivate) {
+            const chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
+            let code;
+            for (let i = 0; i < 20; i++) {
+              code = '';
+              for (let j = 0; j < 6; j++) code += chars[Math.floor(Math.random() * chars.length)];
+              if (!spaces.has(code)) { sid = code; break; }
+            }
+            if (!sid) sid = 'priv-' + Date.now();
+          } else {
+            const base = (d.name || '').trim() || 'space';
+            sid = base + '-' + Date.now();
+          }
+          const spaceName = (d.name || '').trim() || (isPrivate ? 'ห้องส่วนตัว' : sid);
+          let maxPlayers = parseInt(d.maxPlayers, 10);
+          if (isNaN(maxPlayers) || maxPlayers < 1) maxPlayers = 10;
+          maxPlayers = Math.min(10, Math.max(1, maxPlayers));
+          if (mapData.gameType === 'gauntlet' || mapData.gameType === 'space_shooter' || mapData.gameType === 'balloon_boss') maxPlayers = Math.min(maxPlayers, 6);
+          const mapId = d.mapId ? String(d.mapId).trim() : null;
+          const previewEditorTest = isPrivate && String(spaceName).toLowerCase() === 'preview';
+          let botSlotCount = parseInt(d.botSlotCount, 10);
+          if (isNaN(botSlotCount) || botSlotCount < 0) botSlotCount = 0;
+          botSlotCount = effectiveBotSlotCount({ botSlotCount, maxPlayers });
+          spaces.set(sid, {
+            mapData, mapId, peers: new Map(), spaceName, hostId: null, isPrivate, maxPlayers, createdAt: Date.now(),
+            previewEditorTest,
+            botSlotCount,
+            suspectCardMinigames: null,
+            suspectPhaseActive: false,
+            suspectPickIndex: 0,
+            detectiveMinigameActive: false,
+          });
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, spaceId: sid, roomCode: isPrivate ? sid : null }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+  }
+  if (url === BASE_PATH + '/api/ice-servers' && req.method === 'GET') {
+    function sendIceServers(iceServers) {
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ iceServers: iceServers || [] }));
+    }
+    function fallback() {
+      const iceServers = [{ urls: 'stun:stun.l.google.com:19302' }, { urls: 'stun:stun1.l.google.com:19302' }];
+      const turnUrl = process.env.TURN_SERVER || process.env.TURN_URL;
+      const turnUser = process.env.TURN_USER;
+      const turnCred = process.env.TURN_CRED;
+      if (turnUrl && turnUser && turnCred) iceServers.push({ urls: turnUrl, username: turnUser, credential: turnCred });
+      sendIceServers(iceServers);
+    }
+    const meteredKey = process.env.METERED_TURN_API_KEY || process.env.METERED_TURN_SECRET_KEY;
+    const meteredAppId = process.env.METERED_TURN_APP_ID;
+    let meteredBase = process.env.METERED_TURN_URL;
+    if (!meteredBase) {
+      let meteredHost = process.env.METERED_TURN_SUBDOMAIN || 'openrelayprojectsecret';
+      if (meteredHost.indexOf('metered.live') === -1) meteredHost = meteredHost + '.metered.live';
+      meteredBase = 'https://' + meteredHost;
+    }
+    meteredBase = meteredBase.replace(/\/$/, '');
+    if (meteredKey) {
+      function tryNext(credUrl) {
+        return fetch(credUrl).then(function (r) { return r.json(); }).then(function (data) {
+          if (data && (data.error || data.message)) throw new Error(data.error || data.message);
+          const list = Array.isArray(data) ? data : (data && data.iceServers);
+          if (list && list.length) return sendIceServers(list);
+          if (data && data.data && Array.isArray(data.data) && data.data.length) {
+            const turnHost = process.env.METERED_TURN_HOST || 'global.relay.metered.ca';
+            const built = data.data.map(function (c) {
+              return { urls: 'turn:' + turnHost + ':443', username: c.username, credential: c.password };
+            });
+            return sendIceServers(built);
+          }
+          throw new Error('No iceServers');
+        });
+      }
+      const urlsToTry = [
+        meteredBase + '/api/v1/turn/credentials?apiKey=' + encodeURIComponent(meteredKey),
+        meteredBase + '/api/v1/turn/credentials?apiKey=' + encodeURIComponent(meteredAppId || meteredKey),
+        meteredBase + '/api/v2/turn/credentials?secretKey=' + encodeURIComponent(meteredKey)
+      ];
+      let p = tryNext(urlsToTry[0]);
+      for (let i = 1; i < urlsToTry.length; i++) {
+        p = p.catch(function () { return tryNext(urlsToTry[i]); });
+      }
+      p.catch(fallback);
+      return;
+    }
+    const iceServers = [{ urls: 'stun:stun.l.google.com:19302' }, { urls: 'stun:stun1.l.google.com:19302' }];
+    const turnUrl = process.env.TURN_SERVER || process.env.TURN_URL;
+    const turnUser = process.env.TURN_USER;
+    const turnCred = process.env.TURN_CRED;
+    if (turnUrl && turnUser && turnCred) iceServers.push({ urls: turnUrl, username: turnUser, credential: turnCred });
+    sendIceServers(iceServers);
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-admin-login' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json');
+      try {
+        const d = JSON.parse(body || '{}');
+        const password = (d.password || '').trim();
+        if (password !== ADMIN_PASSWORD) {
+          return res.writeHead(401), res.end(JSON.stringify({ ok: false, error: 'รหัสผ่านไม่ถูกต้อง' }));
+        }
+        const token = require('crypto').randomBytes(24).toString('hex');
+        adminTokens.add(token);
+        res.setHeader('Set-Cookie', 'game_ai_admin=' + token + '; Path=' + BASE_PATH + '; HttpOnly; Max-Age=86400; SameSite=Lax');
+        res.writeHead(200);
+        res.end(JSON.stringify({ ok: true }));
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+      }
+    });
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-settings' && req.method === 'GET') {
+    const token = getAdminToken(req.headers.cookie);
+    if (!token) return res.writeHead(401), res.end(JSON.stringify({ error: 'ต้องล็อกอินก่อน' }));
+    const s = loadAiSettings();
+    res.writeHead(200, { 'Content-Type': 'application/json' });
+    res.end(JSON.stringify({
+      model: s.model || 'gpt-4o-mini',
+      models: AI_MODELS,
+      hasKey: !!(s.openai_api_key && s.openai_api_key.length > 0),
+      intent: s.intent != null ? s.intent : '',
+      rag_enabled: !!s.rag_enabled,
+      rag_context: s.rag_context != null ? s.rag_context : '',
+    }));
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-settings' && req.method === 'PUT') {
+    const token = getAdminToken(req.headers.cookie);
+    if (!token) return res.writeHead(401), res.end(JSON.stringify({ error: 'ต้องล็อกอินก่อน' }));
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json');
+      try {
+        const d = JSON.parse(body || '{}');
+        const s = loadAiSettings();
+        if (d.openai_api_key !== undefined) s.openai_api_key = String(d.openai_api_key).trim();
+        if (d.model !== undefined) s.model = String(d.model).trim() || 'gpt-4o-mini';
+        if (d.intent !== undefined) s.intent = String(d.intent);
+        if (d.rag_enabled !== undefined) s.rag_enabled = !!d.rag_enabled;
+        if (d.rag_context !== undefined) s.rag_context = String(d.rag_context);
+        saveAiSettings(s);
+        res.writeHead(200);
+        res.end(JSON.stringify({ ok: true }));
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ ok: false, error: e.message }));
+      }
+    });
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-chat' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const message = (d.message || d.text || '').trim();
+        if (!message) return res.writeHead(400), res.end(JSON.stringify({ error: 'ไม่มีข้อความ' }));
+        const s = loadAiSettings();
+        if (!s.openai_api_key) return res.writeHead(503), res.end(JSON.stringify({ error: 'ยังไม่ได้ตั้งค่า OpenAI API Key ในหน้า Admin' }));
+        const model = s.model || 'gpt-4o-mini';
+        const messages = [];
+        const systemParts = [];
+        if (s.intent && String(s.intent).trim()) systemParts.push(String(s.intent).trim());
+        if (s.rag_enabled && s.rag_context && String(s.rag_context).trim()) {
+          systemParts.push('ความรู้/บริบทเพิ่มเติม (ใช้ประกอบการตอบ):\n' + String(s.rag_context).trim());
+        }
+        if (systemParts.length) messages.push({ role: 'system', content: systemParts.join('\n\n') });
+        messages.push({ role: 'user', content: message });
+        const payload = JSON.stringify({
+          model: model,
+          messages: messages,
+          max_tokens: 500,
+        });
+        const urlObj = new URL('https://api.openai.com/v1/chat/completions');
+        const opts = {
+          hostname: urlObj.hostname,
+          path: urlObj.pathname,
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'Authorization': 'Bearer ' + s.openai_api_key,
+            'Content-Length': Buffer.byteLength(payload, 'utf8'),
+          },
+        };
+        const reqOut = require('https').request(opts, (resOut) => {
+          let data = '';
+          resOut.on('data', chunk => data += chunk);
+          resOut.on('end', () => {
+            try {
+              const parsed = JSON.parse(data);
+              const text = parsed.choices && parsed.choices[0] && parsed.choices[0].message && parsed.choices[0].message.content;
+              if (text != null) {
+                res.writeHead(200);
+                res.end(JSON.stringify({ response: String(text).trim() }));
+              } else {
+                res.writeHead(502);
+                res.end(JSON.stringify({ error: parsed.error && parsed.error.message ? parsed.error.message : 'OpenAI error' }));
+              }
+            } catch (e) {
+              res.writeHead(502), res.end(JSON.stringify({ error: 'Invalid response from OpenAI' }));
+            }
+          });
+        });
+        reqOut.on('error', (e) => { res.writeHead(502), res.end(JSON.stringify({ error: e.message })); });
+        reqOut.write(payload);
+        reqOut.end();
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ error: e.message }));
+      }
+    });
+    return;
+  }
+  if (url.startsWith(BASE_PATH + '/img/characters/') && (req.method === 'GET' || req.method === 'HEAD')) {
+    const sub = url.slice((BASE_PATH + '/img/characters/').length).split('?')[0];
+    const fname = path.basename(sub).replace(/[^a-z0-9_.-]/gi, '');
+    if (fname && fname.length > 0) {
+      const fp = path.join(CHARACTERS_DIR, fname);
+      if (fs.existsSync(fp)) {
+        return fs.readFile(fp, (err, data) => {
+          if (err) return res.writeHead(500), res.end();
+          res.writeHead(200, { 'Content-Type': 'image/png' });
+          if (req.method === 'HEAD') return res.end();
+          res.end(data);
+        });
+      }
+    }
+  }
+  if (url.startsWith(BASE_PATH + '/img/gauntlet-assets/') && req.method === 'GET') {
+    const sub = decodeURIComponent(url.slice((BASE_PATH + '/img/gauntlet-assets/').length).split('?')[0]);
+    const fname = safeGauntletStoredFilename(sub);
+    if (!fname) {
+      res.writeHead(400);
+      return res.end();
+    }
+    const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+    if (!fs.existsSync(fp)) {
+      res.writeHead(404);
+      return res.end();
+    }
+    const ext = path.extname(fname);
+    return fs.readFile(fp, (err, data) => {
+      if (err) return res.writeHead(500), res.end();
+      res.writeHead(200, { 'Content-Type': gauntletAssetMimeByExt(ext) });
+      res.end(data);
+    });
+  }
+  if (url.indexOf(BASE_PATH) === 0) url = url.slice(BASE_PATH.length) || '/index.html';
+  const filePath = path.join(__dirname, 'public', url);
+  const ext = path.extname(filePath);
+  const types = { '.html': 'text/html', '.js': 'application/javascript', '.css': 'text/css' };
+  fs.readFile(filePath, (err, data) => {
+    if (err) return res.writeHead(404), res.end('Not Found');
+    res.writeHead(200, {
+      'Content-Type': types[ext] || 'application/octet-stream',
+      'Cache-Control': 'no-store, no-cache, must-revalidate',
+      'Pragma': 'no-cache',
+      'Expires': '0'
+    });
+    res.end(data);
+  });
+});
+
+const io = new Server(server, { path: BASE_PATH + '/socket.io', cors: { origin: '*' } });
+const spaces = new Map();
+
+const GAUNTLET_MAX_PLAYERS = 6;
+/** ระยะอยู่กลางอากาศ (tick) — ปรับได้ที่ Admin / data/game-timing.json */
+/** สุ่มเป็นคอลัมน์เลเซอร์ (ทุกแถว) ต่อหนึ่งรอบเกิด */
+const GAUNTLET_LASER_SPAWN_CHANCE = 0.14;
+/** เฉพาะแถวที่มีผู้เล่น — แถวละโอกาสเกิด lane obstacle */
+const GAUNTLET_LANE_ROW_SPAWN_CHANCE = 0.34;
+/** Last Light / museum gauntlet — scoring, mission UI, how-to flow */
+const GAUNTLET_CROWN_HEIST_MAP_ID = 'mno9kb07';
+/** Mega Virus — balloon_boss ฉากภารกิจ (flow เดียวกับ crown) */
+const BALLOON_BOSS_MISSION_MAP_ID = 'mnq1eml7';
+/** Space Shooter ภารกิจ Violent Crime — lobby READY / START เดียวกับ Jumper */
+const SPACE_SHOOTER_MISSION_MAP_ID = 'mnpz6rkp';
+
+function isGauntletCrownHeistMapBySpace(space) {
+  return !!(space && space.mapId && String(space.mapId) === GAUNTLET_CROWN_HEIST_MAP_ID);
+}
+
+function isBalloonBossMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== BALLOON_BOSS_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'balloon_boss');
+}
+
+/** ภารกิจคำถาม quiz + แมป mng8a80o — lobby READY เดียวกับ Mega Virus */
+function isQuizQuestionMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== SUSPECT_INVESTIGATION_QUIZ_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'quiz');
+}
+
+function isStackTowerMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== STACK_TOWER_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'stack');
+}
+
+function isJumpSurviveMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== JUMP_SURVIVE_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'jump_survive');
+}
+
+function isSpaceShooterMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== SPACE_SHOOTER_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'space_shooter');
+}
+
+function isCrownLobbyShellSpace(space) {
+  return isGauntletCrownHeistMapBySpace(space) || isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space);
+}
+
+function newBalloonBossShellGauntletRunState() {
+  return {
+    obstacles: [],
+    nextObsId: 1,
+    spawnAcc: 0,
+    nextSpawnIn: 999,
+    crownRunHeld: true,
+    timerId: null,
+    endsAt: null,
+  };
+}
+
+function emitBalloonBossMissionShellGauntletSync(sid, space) {
+  if (!isBalloonBossMissionShellSpace(space)) return;
+  const gr = space.gauntletRun;
+  io.to(sid).emit('gauntlet-sync', {
+    gauntletCrownRunHeld: !!(gr && gr.crownRunHeld),
+  });
+}
+
+function rollGauntletCrownRewardCard(grade) {
+  const r = Math.random();
+  if (grade === 'A') {
+    if (r < 0.3) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+    if (r < 0.8) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+  if (grade === 'B') {
+    if (r < 0.2) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+    if (r < 0.5) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+  if (r < 0.2) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+  return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+}
+
+function gauntletCrownRankBonus(rankOrdinal) {
+  if (rankOrdinal === 1) return 100;
+  if (rankOrdinal === 2) return 80;
+  if (rankOrdinal === 3) return 60;
+  return 0;
+}
+
+function buildGauntletCrownMissionPayload(space) {
+  const peersArr = [...space.peers.values()];
+  const rows = peersArr.map((p) => ({
+    id: p.id,
+    nickname: (p.nickname || '').trim() || 'ผู้เล่น',
+    characterId: p.characterId ?? null,
+    baseScore: p.gauntletEliminated ? 0 : Math.max(0, p.gauntletScore | 0),
+    eliminated: !!p.gauntletEliminated,
+  }));
+  rows.sort((a, b) => {
+    if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+    return String(a.nickname).localeCompare(String(b.nickname), 'th');
+  });
+  let lastScore = null;
+  let rankOrdinal = 0;
+  const ranked = [];
+  for (let i = 0; i < rows.length; i++) {
+    const pos = i + 1;
+    if (lastScore !== rows[i].baseScore) {
+      rankOrdinal = pos;
+      lastScore = rows[i].baseScore;
+    }
+    const bonus = gauntletCrownRankBonus(rankOrdinal);
+    const finalScore = rows[i].baseScore + bonus;
+    const rankLabel = rankOrdinal === 1 ? '1st' : rankOrdinal === 2 ? '2nd' : rankOrdinal === 3 ? '3rd' : String(rankOrdinal);
+    ranked.push({
+      id: rows[i].id,
+      nickname: rows[i].nickname,
+      characterId: rows[i].characterId,
+      baseScore: rows[i].baseScore,
+      eliminated: rows[i].eliminated,
+      rank: rankOrdinal,
+      rankLabel,
+      rankBonus: bonus,
+      finalScore,
+    });
+  }
+  const totalSum = ranked.reduce((s, r) => s + r.finalScore, 0);
+  const n = ranked.length || 1;
+  const averageScore = Math.floor(totalSum / n);
+  const grade = averageScore >= 80 ? 'A' : averageScore >= 60 ? 'B' : 'C';
+  const rewardCard = rollGauntletCrownRewardCard(grade);
+  return {
+    ranked,
+    totalSum,
+    averageScore,
+    grade,
+    rewardCard,
+    totalParts: ranked.map((r) => r.finalScore),
+  };
+}
+
+function gauntletSpawnYs(md, playerCount) {
+  const h = md.height || 15;
+  const lo = 1;
+  const hi = Math.max(lo, h - 2);
+  const n = Math.min(GAUNTLET_MAX_PLAYERS, Math.max(1, playerCount));
+  if (hi <= lo) return Array.from({ length: n }, () => lo);
+  const ys = [];
+  for (let i = 0; i < n; i++) {
+    ys.push(Math.round(lo + (i * (hi - lo)) / Math.max(1, n - 1)));
+  }
+  return ys;
+}
+
+/** ช่อง spawnArea=1 ที่เดินได้ เรียงจากบนลงล่าง — ใช้เมื่อไม่มี gauntletPlayerSpawns */
+function collectGauntletSpawnSlotsFromSpawnArea(md) {
+  const grid = md.spawnArea;
+  if (!grid || !Array.isArray(grid)) return [];
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const slots = [];
+  for (let y = 0; y < h; y++) {
+    const row = grid[y];
+    if (!row) continue;
+    for (let x = 0; x < w; x++) {
+      if (Number(row[x]) === 1 && isMapTileWalkableForSpawn(md, x, y)) slots.push({ x, y });
+    }
+  }
+  slots.sort((a, b) => a.y - b.y || a.x - b.x);
+  return slots;
+}
+
+/** ลำดับผู้เล่น 1..6: ใช้ gauntletPlayerSpawns ตามลำดับใน JSON ก่อน ถ้าไม่มี/ว่างค่อยใช้ spawnArea */
+function collectGauntletSpawnSlotsFromMap(md) {
+  const explicit = md.gauntletPlayerSpawns;
+  if (Array.isArray(explicit) && explicit.length > 0) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const slots = [];
+    for (const raw of explicit) {
+      if (slots.length >= GAUNTLET_MAX_PLAYERS) break;
+      const x = Math.floor(Number(raw && raw.x));
+      const y = Math.floor(Number(raw && raw.y));
+      if (!Number.isFinite(x) || !Number.isFinite(y) || x < 0 || x >= w || y < 0 || y >= h) continue;
+      if (!isMapTileWalkableForSpawn(md, x, y)) continue;
+      slots.push({ x, y });
+    }
+    if (slots.length > 0) return slots;
+  }
+  return collectGauntletSpawnSlotsFromSpawnArea(md);
+}
+
+function gauntletResolveSpawnXForRow(md, spawnColX, y, slotXFallback) {
+  const w = md.width || 20;
+  if (isMapTileWalkableForSpawn(md, spawnColX, y)) return spawnColX;
+  if (slotXFallback != null && isMapTileWalkableForSpawn(md, slotXFallback, y)) return slotXFallback;
+  for (let d = 0; d < w; d++) {
+    if (spawnColX + d < w && isMapTileWalkableForSpawn(md, spawnColX + d, y)) return spawnColX + d;
+    if (spawnColX - d >= 0 && isMapTileWalkableForSpawn(md, spawnColX - d, y)) return spawnColX - d;
+  }
+  return Math.max(0, Math.min(w - 1, spawnColX));
+}
+
+/** แนว Y ตามลำดับจุดเกิด แต่ทุกคนใช้คอลัมน์ x เดียวกัน (ซ้ายสุดจากชุดจุดที่กำหนด) — กันยืนเฉียง */
+function gauntletSpawnPositions(md, playerCount) {
+  const n = Math.min(GAUNTLET_MAX_PLAYERS, Math.max(1, playerCount));
+  const slots = collectGauntletSpawnSlotsFromMap(md);
+  const fallbackYs = gauntletSpawnYs(md, n);
+  const spawnColX = slots.length ? Math.min(...slots.map((s) => s.x)) : 1;
+  const out = [];
+  for (let i = 0; i < n; i++) {
+    const y = i < slots.length
+      ? slots[i].y
+      : (fallbackYs[i] != null ? fallbackYs[i] : fallbackYs[fallbackYs.length - 1]);
+    const slotX = i < slots.length ? slots[i].x : null;
+    const x = gauntletResolveSpawnXForRow(md, spawnColX, y, slotX);
+    out.push({ x, y });
+  }
+  return out;
+}
+
+function stopGauntletTicker(space) {
+  if (space.gauntletRun && space.gauntletRun.timerId) {
+    clearInterval(space.gauntletRun.timerId);
+    space.gauntletRun.timerId = null;
+  }
+}
+
+/** ถ้าตั้งจำกัดเวลาใน Admin แต่ยังไม่มี endsAt (เช่น join ห้อง Gauntlet โดยตรง) — เริ่มนับตอนนี้ */
+function ensureGauntletEndsAtIfNeeded(space) {
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  if (gr.crownRunHeld) return;
+  const lim = getGauntletTimeLimitSec();
+  if (lim > 0 && gr.endsAt == null) {
+    gr.endsAt = Date.now() + lim * 1000;
+  }
+}
+
+function newGauntletRunState(space) {
+  const crown = !!(space && isGauntletCrownHeistMapBySpace(space));
+  return {
+    obstacles: [],
+    nextObsId: 1,
+    spawnAcc: 0,
+    nextSpawnIn: 3,
+    crownRunHeld: crown,
+  };
+}
+
+function emitGauntletSync(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  const h = md.height || 15;
+  const obsOut = gr.obstacles.map((o) => {
+    if (o.kind === 'laser') {
+      const y0 = o.y0 != null && Number.isFinite(Number(o.y0)) ? Math.floor(Number(o.y0)) : 0;
+      const y1 = o.y1 != null && Number.isFinite(Number(o.y1)) ? Math.floor(Number(o.y1)) : h - 1;
+      return { id: o.id, kind: 'laser', x: o.x, y: null, y0, y1 };
+    }
+    return { id: o.id, kind: o.kind, x: o.x, y: o.y };
+  });
+  const playersOut = [...space.peers.values()].map((p) => ({
+    id: p.id,
+    x: p.x,
+    y: p.y,
+    direction: p.direction || 'down',
+    characterId: p.characterId ?? null,
+    gauntletJumpTicks: p.gauntletJumpTicks || 0,
+    gauntletScore: p.gauntletScore || 0,
+    gauntletEliminated: !!p.gauntletEliminated,
+  }));
+  io.to(sid).emit('gauntlet-sync', {
+    obstacles: obsOut,
+    players: playersOut,
+    gauntletTickMs: getGauntletTickMs(),
+    gauntletJumpTicks: getGauntletJumpTicks(),
+    gauntletTimeLimitSec: getGauntletTimeLimitSec(),
+    gauntletEndsAt: gr.endsAt != null ? gr.endsAt : null,
+    gauntletCrownRunHeld: !!gr.crownRunHeld,
+    ...getGauntletVisualsForClient(),
+  });
+}
+
+function startGauntletTicker(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  if (space.gauntletRun && space.gauntletRun.timerId) return;
+  if (!space.gauntletRun) {
+    space.gauntletRun = newGauntletRunState(space);
+  }
+  ensureGauntletEndsAtIfNeeded(space);
+  space.gauntletRun.timerId = setInterval(() => {
+    runGauntletTick(sid, space);
+  }, getGauntletTickMs());
+}
+
+function initGauntletPeersAll(space, md) {
+  const list = [...space.peers.values()];
+  const pos = gauntletSpawnPositions(md, list.length);
+  const crown = isGauntletCrownHeistMapBySpace(space);
+  list.forEach((p, i) => {
+    const pt = pos[i] || pos[pos.length - 1];
+    p.x = pt.x;
+    p.y = pt.y;
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = crown ? 100 : 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+  space.gauntletRun = newGauntletRunState(space);
+  if (crown) {
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    space.peers.forEach((_p, id) => {
+      space.gauntletCrownLobbyReady[id] = false;
+    });
+  }
+  space.gauntletPreviewRowsBySocket = new Map();
+}
+
+function findFallbackLobbyMapForGauntletEnd() {
+  for (const [id, m] of maps) {
+    if (m && m.gameType === 'lobby') return { id, m };
+  }
+  return null;
+}
+
+/** หมดเวลา Gauntlet — หยุด tick, คืนแผนที่ lobby, แจ้งไคลเอนต์ */
+function endGauntletGame(sid, space, reason) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  if (space.detectiveMinigameActive) {
+    const msg = reason === 'time' ? 'หมดเวลา — จบมินิเกม' : 'จบมินิเกม';
+    returnDetectiveSpaceToLobbyB(sid, space, msg, { allPlayers: true });
+    return;
+  }
+  stopGauntletTicker(space);
+  const wasCrown = isGauntletCrownHeistMapBySpace(space);
+  const crownMission = wasCrown ? buildGauntletCrownMissionPayload(space) : null;
+  const rankings = crownMission
+    ? crownMission.ranked.map((r) => ({
+      id: r.id,
+      nickname: r.nickname,
+      score: r.finalScore,
+    }))
+    : [...space.peers.values()].map((p) => ({
+      id: p.id,
+      nickname: (p.nickname || '').trim() || 'ผู้เล่น',
+      score: Math.max(0, p.gauntletScore | 0),
+    })).sort((a, b) => b.score - a.score);
+
+  let retId = space.gauntletReturnMapId;
+  let retMap = retId && maps.has(retId) ? maps.get(retId) : null;
+  if (!retMap || retMap.gameType === 'gauntlet') {
+    const fb = findFallbackLobbyMapForGauntletEnd();
+    if (fb) {
+      retId = fb.id;
+      retMap = fb.m;
+    }
+  }
+  if (retMap && retMap.gameType !== 'gauntlet') {
+    space.mapId = retId;
+    space.mapData = retMap;
+    let gi = 0;
+    space.peers.forEach((p) => {
+      const sp = pickSpawnForJoin(retMap, gi++);
+      p.x = sp.x;
+      p.y = sp.y;
+      p.gauntletJumpTicks = 0;
+      p.gauntletScore = 0;
+      p.gauntletJumpPending = false;
+      p.gauntletEliminated = false;
+    });
+  } else {
+    console.warn('endGauntletGame: no lobby map to return to', sid);
+  }
+  space.gauntletReturnMapId = null;
+  if (space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket.clear();
+  space.gauntletRun = null;
+  const msg = reason === 'time' ? 'หมดเวลา — เกมพรมแดงจบแล้ว' : 'เกมพรมแดงจบแล้ว';
+  io.to(sid).emit('gauntlet-ended', {
+    reason: reason || 'time',
+    message: msg,
+    rankings,
+    crownMission: crownMission || undefined,
+  });
+}
+
+/** แถว y บน–ล่างของเลเซอร์จากแมป (null ทั้งคู่ = เต็มความสูง) */
+function gauntletLaserVerticalSpanFromMap(md) {
+  const hRaw = md && md.height != null ? Number(md.height) : 15;
+  const h = Math.max(1, Math.floor(Number.isFinite(hRaw) ? hRaw : 15));
+  const rs = md && md.gauntletLaserRowStart;
+  const re = md && md.gauntletLaserRowEnd;
+  if (rs == null || re == null || !Number.isFinite(Number(rs)) || !Number.isFinite(Number(re))) {
+    return { y0: 0, y1: h - 1 };
+  }
+  let y0 = Math.floor(Number(rs));
+  let y1 = Math.floor(Number(re));
+  y0 = Math.max(0, Math.min(h - 1, y0));
+  y1 = Math.max(0, Math.min(h - 1, y1));
+  if (y1 < y0) {
+    const t = y0;
+    y0 = y1;
+    y1 = t;
+  }
+  return { y0, y1 };
+}
+
+/**
+ * แถว grid ของ lane obstacle: แถวเท้า (ขอบล่าง footprint; แถวบนของตัว = player y)
+ * — สูงกว่าแบบ top+ch หนึ่งช่อง (ไม่ให้ลงเกินพรม)
+ */
+function gauntletLaneGridRowFromPlayerTop(md, topY, h) {
+  const { ch } = getCharacterFootprintWHForMove(md);
+  const top = Math.floor(Number(topY));
+  if (!Number.isFinite(top) || top < 0 || top >= h) return null;
+  const lr = top + ch - 1;
+  if (lr < 0 || lr >= h) return null;
+  return lr;
+}
+
+function runGauntletTick(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') {
+    stopGauntletTicker(space);
+    return;
+  }
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  ensureGauntletEndsAtIfNeeded(space);
+  if (gr.endsAt != null && Date.now() >= gr.endsAt) {
+    endGauntletGame(sid, space, 'time');
+    return;
+  }
+
+  if (gr.crownRunHeld) {
+    space.peers.forEach((p) => {
+      p.gauntletJumpPending = false;
+    });
+    emitGauntletSync(sid, space);
+    return;
+  }
+
+  /* ใช้ pending ให้ jump กับ collision อยู่รอบ tick เดียวกัน (กัน race ระหว่าง setInterval กับ socket) */
+  space.peers.forEach((p) => {
+    if (p.gauntletJumpPending) {
+      if ((p.gauntletJumpTicks || 0) === 0) {
+        p.gauntletJumpTicks = getGauntletJumpTicks();
+      }
+      p.gauntletJumpPending = false;
+    }
+  });
+
+  for (let i = 0; i < gr.obstacles.length; i++) gr.obstacles[i].x -= 1;
+  gr.obstacles = gr.obstacles.filter((o) => o.x >= 0);
+
+  const laneSpawnRows = new Set();
+  space.peers.forEach((peer) => {
+    const lr = gauntletLaneGridRowFromPlayerTop(md, peer.y, h);
+    if (lr != null) laneSpawnRows.add(lr);
+  });
+  /* แถวบนที่ client แจ้ง (บอท preview) — แปลงเป็นแถว lane เดียวกับ peer */
+  const previewRows = space.gauntletPreviewRowsBySocket;
+  if (previewRows && previewRows.size) {
+    previewRows.forEach((set) => {
+      set.forEach((y) => {
+        const lr = gauntletLaneGridRowFromPlayerTop(md, y, h);
+        if (lr != null) laneSpawnRows.add(lr);
+      });
+    });
+  }
+  /* lane obstacle เฉพาะแถวที่ยังมีผู้เล่น/บอทในเลนนั้น — ลบชิ้นที่ไม่มีใครแล้ว */
+  gr.obstacles = gr.obstacles.filter((o) => o.kind !== 'lane' || laneSpawnRows.has(o.y));
+
+  gr.spawnAcc = (gr.spawnAcc || 0) + 1;
+  if (gr.spawnAcc >= (gr.nextSpawnIn || 3)) {
+    gr.spawnAcc = 0;
+    gr.nextSpawnIn = 2 + Math.floor(Math.random() * 6);
+    /* ประเภท 2: เลเซอร์ — ทุกแถว */
+    if (Math.random() < GAUNTLET_LASER_SPAWN_CHANCE) {
+      const span = gauntletLaserVerticalSpanFromMap(md);
+      gr.obstacles.push({ id: ++gr.nextObsId, kind: 'laser', x: w - 1, y0: span.y0, y1: span.y1 });
+    }
+    /* ประเภท 1: แยกเลน — แถวเท้า (ไม่ใช่แถวหัว; ไม่ใช่แถวใต้เท้าอีกช่อง) */
+    laneSpawnRows.forEach((ly) => {
+      if (Math.random() < GAUNTLET_LANE_ROW_SPAWN_CHANCE) {
+        gr.obstacles.push({ id: ++gr.nextObsId, kind: 'lane', x: w - 1, y: ly });
+      }
+    });
+  }
+
+  /* กระโดดข้ามสำเร็จ → เลื่อนผู้เล่นไปขวา แต่ไม่ลบ obstacle (ยังไหลต่อให้คนอื่น/รอบถัดไป) */
+  const crownHeist = isGauntletCrownHeistMapBySpace(space);
+  const { ch: gauntletCh } = getCharacterFootprintWHForMove(md);
+  space.peers.forEach((p) => {
+    if (crownHeist && p.gauntletEliminated) {
+      return;
+    }
+    let px = Math.floor(Number(p.x)) || 0;
+    let py = Math.floor(Number(p.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    const air = (p.gauntletJumpTicks || 0) > 0;
+    let advanceX = false;
+    let hitBack = false;
+    for (const o of gr.obstacles) {
+      if (o.kind === 'lane' && o.x === px && o.y >= py && o.y < py + gauntletCh) {
+        if (air) advanceX = true;
+        else hitBack = true;
+      }
+      if (o.kind === 'laser' && o.x === px) {
+        const y0 = o.y0 != null && Number.isFinite(Number(o.y0)) ? Math.max(0, Math.min(h - 1, Math.floor(Number(o.y0)))) : 0;
+        const y1 = o.y1 != null && Number.isFinite(Number(o.y1)) ? Math.max(0, Math.min(h - 1, Math.floor(Number(o.y1)))) : h - 1;
+        const lo = Math.min(y0, y1);
+        const hi = Math.max(y0, y1);
+        if (py < lo || py > hi) {
+          /* เลเซอร์ไม่ครอบแถวนี้ */
+        } else if (air) {
+          advanceX = true;
+        } else {
+          hitBack = true;
+        }
+      }
+    }
+    if (advanceX) {
+      px = Math.min(w - 2, px + 1);
+      p.gauntletJumpTicks = 0;
+      if (!crownHeist) {
+        p.gauntletScore = (p.gauntletScore || 0) + 1;
+      }
+    } else if (hitBack) {
+      if (crownHeist) {
+        if (px <= 0) {
+          p.gauntletEliminated = true;
+          p.gauntletScore = 0;
+        } else {
+          p.gauntletScore = Math.max(0, (p.gauntletScore || 0) - 10);
+          px = Math.max(0, px - 1);
+        }
+      } else {
+        px = Math.max(0, px - 1);
+      }
+    }
+    if ((p.gauntletJumpTicks || 0) > 0) p.gauntletJumpTicks--;
+    p.x = px;
+    p.y = py;
+  });
+
+  emitGauntletSync(sid, space);
+}
+
+function rescheduleAllGauntletTickers() {
+  for (const [sid, space] of spaces) {
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') continue;
+    if (space.gauntletRun && space.gauntletRun.timerId) {
+      clearInterval(space.gauntletRun.timerId);
+      space.gauntletRun.timerId = null;
+    }
+    if (space.peers.size === 0) continue;
+    if (!space.gauntletRun) {
+      space.gauntletRun = newGauntletRunState(space);
+    }
+    ensureGauntletEndsAtIfNeeded(space);
+    space.gauntletRun.timerId = setInterval(() => {
+      runGauntletTick(sid, space);
+    }, getGauntletTickMs());
+  }
+}
+
+function getLobbyLayoutMapForSpace(space) {
+  return (space.mapId && maps.get(space.mapId)) || space.mapData;
+}
+
+/** ห้องกำลังใช้เลย์เอาต์ LobbyB (mn8nx46h หรือแมป lobby ชื่อ LobbyB) — กัน mapId บน space ค้างค่าอื่นแต่ mapData เป็น LobbyB */
+function serverMapIsPostCaseLobbyB(space) {
+  if (!space) return false;
+  if (space.mapId === POST_CASE_LOBBY_SPACE_ID) return true;
+  const md = getLobbyLayoutMapForSpace(space);
+  if (!md || md.gameType !== 'lobby') return false;
+  const nm = String(md.name || '').trim().toLowerCase();
+  return nm === 'lobbyb';
+}
+
+/** ให้ชื่อใน whitelist ตรงกับตอน join หลังเริ่มคดี (กันช่องว่าง/ยูนิโค้ดต่างรูปแบบ) */
+function normalizeLobbyNickname(nickname) {
+  const raw = String(nickname || '').trim();
+  if (!raw) return 'ผู้เล่น';
+  try {
+    return raw.normalize('NFKC').toLowerCase();
+  } catch (e) {
+    return raw.toLowerCase();
+  }
+}
+
+/** ห้องนี้เป็น LobbyB (โถงหลังคดี) แล้ว — ไม่ต้องย้ายซ้ำ */
+function lobbySpaceAlreadyLobbyB(space, md) {
+  if (!md || md.gameType !== 'lobby') return false;
+  if (space.mapId === POST_CASE_LOBBY_SPACE_ID) return true;
+  if (String(md.name || '').trim() === 'LobbyB') return true;
+  return false;
+}
+
+function lobbyMapHasStartGameArea(md) {
+  if (!md) return false;
+  const namedLobbyA = String(md.name || '').trim().toLowerCase() === 'lobbya';
+  if (md.gameType !== 'lobby' && !namedLobbyA) return false;
+  const area = md.startGameArea;
+  if (!area || !Array.isArray(area)) return false;
+  for (let y = 0; y < area.length; y++) {
+    const row = area[y];
+    if (!row) continue;
+    for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+  }
+  return false;
+}
+
+/** ถ้าไม่ได้วาดพื้นที่เริ่มเกมในเอดิเตอร์ = ไม่บังคับ */
+function lobbyHostStandingInStartArea(space, hostId) {
+  const md = getLobbyLayoutMapForSpace(space);
+  if (!lobbyMapHasStartGameArea(md)) return true;
+  const p = space.peers.get(hostId);
+  if (!p || p.x == null || p.y == null) return false;
+  const tx = Math.floor(p.x);
+  const ty = Math.floor(p.y);
+  const row = md.startGameArea[ty];
+  return !!(row && row[tx] === 1);
+}
+
+function isMapTileWalkableForSpawn(md, x, y) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  if (x < 0 || x >= w || y < 0 || y >= h) return false;
+  const row = md.objects && md.objects[y];
+  if (row && row[x] === 1) return false;
+  return true;
+}
+
+function mapCharacterFootprintWH(md) {
+  const cw = Math.max(1, Math.min(4, Math.floor(Number(md && md.characterCellsW) || Number(md && md.characterCells) || 1)));
+  const ch = Math.max(1, Math.min(4, Math.floor(Number(md && md.characterCellsH) || Number(md && md.characterCells) || 1)));
+  return { cw, ch };
+}
+
+/** จุดเกิด = มุมซ้ายบนของ footprint — ต้องเดินได้ทั้งกล่อง (ตรง editor / room-lobby) */
+function isMapSpawnAnchorWalkable(md, x, y) {
+  if (!isMapTileWalkableForSpawn(md, x, y)) return false;
+  const { cw, ch } = mapCharacterFootprintWH(md);
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const maxX = Math.min(w, x + cw);
+  const maxY = Math.min(h, y + ch);
+  for (let ty = y; ty < maxY; ty++) {
+    for (let tx = x; tx < maxX; tx++) {
+      if (!isMapTileWalkableForSpawn(md, tx, ty)) return false;
+    }
+  }
+  return true;
+}
+
+/** แปลง lobbyPlayerSpawns จากแมปเป็นอาร์เรย์ยาว 6 ช่อง (null หรือ {x,y}) */
+function parseLobbyPlayerSpawnsFromMap(md) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const out = [null, null, null, null, null, null];
+  const raw = md && md.lobbyPlayerSpawns;
+  if (!Array.isArray(raw)) return out;
+  for (let i = 0; i < 6 && i < raw.length; i++) {
+    const cell = raw[i];
+    if (!cell || typeof cell !== 'object') continue;
+    const x = Math.floor(Number(cell.x));
+    const y = Math.floor(Number(cell.y));
+    if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
+    if (x < 0 || x >= w || y < 0 || y >= h) continue;
+    out[i] = { x, y };
+  }
+  return out;
+}
+
+/** jump_survive: ช่อง P บนกริด (shooterSpawnSlots) เติม slots6 เมื่อ lobbyPlayerSpawns ว่าง */
+function augmentLobbySlotsFromShooterPaintJumpSurvive(md, slots6) {
+  if (!md || md.gameType !== 'jump_survive' || !Array.isArray(slots6)) return;
+  const g = md.shooterSpawnSlots;
+  if (!g) return;
+  const w = md.width || 20, h = md.height || 15;
+  for (let slot = 1; slot <= 6; slot++) {
+    const idx = slot - 1;
+    if (slots6[idx]) continue;
+    let found = false;
+    for (let yy = 0; yy < h && !found; yy++) {
+      const row = g[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < w; xx++) {
+        if (row[xx] === slot) {
+          slots6[idx] = { x: xx, y: yy };
+          found = true;
+          break;
+        }
+      }
+    }
+  }
+}
+
+/**
+ * จุดเกิดตอน join — random = สุ่มใน spawnArea / fixed = ปุ่มตั้งจุดเกิด / slots6 = P ตามลำดับเข้า (0=คนแรก)
+ * โหมดพรมแดงยังถูกทับด้วย gauntletSpawnPositions หลัง join ตามเดิม
+ */
+function pickSpawnForJoin(md, joinOrderIndex) {
+  if (!md) return { x: 1, y: 1 };
+  const mode = md.lobbySpawnMode;
+  const ord = joinOrderIndex | 0;
+  if (mode === 'slots6' && ord >= 6) return pickRandomSpawnFromMap(md);
+  const j = Math.min(Math.max(0, ord), 5);
+  if (mode === 'fixed' && md.spawn) {
+    const fx = Number.isFinite(Number(md.spawn.x)) ? Math.floor(Number(md.spawn.x)) : 1;
+    const fy = Number.isFinite(Number(md.spawn.y)) ? Math.floor(Number(md.spawn.y)) : 1;
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const x = Math.max(0, Math.min(w - 1, fx));
+    const y = Math.max(0, Math.min(h - 1, fy));
+    if (isMapSpawnAnchorWalkable(md, x, y)) return { x, y };
+    return pickRandomSpawnFromMap(md);
+  }
+  if (mode === 'slots6') {
+    const slots = parseLobbyPlayerSpawnsFromMap(md);
+    augmentLobbySlotsFromShooterPaintJumpSurvive(md, slots);
+    const pick = slots[j];
+    if (pick && isMapSpawnAnchorWalkable(md, pick.x, pick.y)) return { x: pick.x, y: pick.y };
+    return pickRandomSpawnFromMap(md);
+  }
+  return pickRandomSpawnFromMap(md);
+}
+
+/** สุ่มจุดเกิดในช่อง spawnArea=1 ที่เดินได้ — ไม่มีช่องว่าง = ใช้ spawn ค่าเดิมจากเอดิเตอร์ */
+function pickRandomSpawnFromMap(md) {
+  const fallback = md.spawn || { x: 1, y: 1 };
+  const fx = Number.isFinite(Number(fallback.x)) ? Number(fallback.x) : 1;
+  const fy = Number.isFinite(Number(fallback.y)) ? Number(fallback.y) : 1;
+  const grid = md.spawnArea;
+  if (!grid || !Array.isArray(grid)) return { x: fx, y: fy };
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const pool = [];
+  for (let y = 0; y < h; y++) {
+    const row = grid[y];
+    if (!row) continue;
+    for (let x = 0; x < w; x++) {
+      if (Number(row[x]) === 1 && isMapTileWalkableForSpawn(md, x, y)) pool.push({ x, y });
+    }
+  }
+  if (!pool.length) return { x: fx, y: fy };
+  const idx = typeof crypto.randomInt === 'function'
+    ? crypto.randomInt(0, pool.length)
+    : Math.floor(Math.random() * pool.length);
+  const pick = pool[idx];
+  return { x: pick.x, y: pick.y };
+}
+
+/** ตอบผิดในเกมคำถาม — กลับจุดเกิดตามลำดับเข้า (เดียวกับ pickSpawnForJoin) แล้วดีดออกนอกโซนถ้าทับโซนตอบ */
+function quizWrongAnswerRespawnPosition(md, joinOrderIndex) {
+  const ord = joinOrderIndex | 0;
+  const sp = pickSpawnForJoin(md, ord);
+  return findNearestOutsideQuizAnswerZones(md, Number(sp.x) + 0.5, Number(sp.y) + 0.5);
+}
+
+function initTroublesomeState(space) {
+  if (!space.troublesomeEligible) space.troublesomeEligible = new Set();
+  if (space.troublesomeOfferSent == null) space.troublesomeOfferSent = false;
+  if (space.suspectPickIndex == null) space.suspectPickIndex = 0;
+  if (space.suspectPhaseActive == null) space.suspectPhaseActive = false;
+}
+
+function attemptTroublesomeRoll(sid, force) {
+  const space = spaces.get(sid);
+  if (!space || space.troublesomeOfferSent) return;
+  const peerIds = [...space.peers.keys()];
+  if (peerIds.length === 0) return;
+  if (!force && space.troublesomeEligible.size < peerIds.length) return;
+  space.troublesomeOfferSent = true;
+  if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+  if (space.troublesomeMaxTimer) clearTimeout(space.troublesomeMaxTimer);
+  space.troublesomeDebTimer = null;
+  space.troublesomeMaxTimer = null;
+  let pool = peerIds.filter((id) => space.troublesomeEligible.has(id));
+  if (pool.length === 0) pool = peerIds;
+  const chosen = pool[Math.floor(Math.random() * pool.length)];
+  space.troublesomeTargetId = chosen;
+  space.troublesomeResponseReceived = false;
+  io.to(chosen).emit('troublesome-offer', { seconds: 15 });
+}
+
+function scheduleTroublesomeRoll(sid) {
+  const space = spaces.get(sid);
+  if (!space || space.troublesomeOfferSent) return;
+  if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+  space.troublesomeDebTimer = setTimeout(() => attemptTroublesomeRoll(sid, false), 450);
+  if (!space.troublesomeMaxTimer) {
+    space.troublesomeMaxTimer = setTimeout(() => attemptTroublesomeRoll(sid, true), 8000);
+  }
+}
+
+/**
+ * ห้องทดสอบเอดิเตอร์ / join ด้วย mapId: mapData บน space อาจยังเป็น lobby แต่ไคลเอนต์เล่น quiz_carry จากพารามิเตอร์
+ * — ให้ lobby Ready/START ทำงานถ้า mapId ชี้แมป quiz_carry หรือเป็นห้อง preview
+ */
+function spaceAllowsQuizCarryLobbyRelaxed(space) {
+  if (!space) return false;
+  if (space.mapId) {
+    const byId = maps.get(space.mapId);
+    if (byId && byId.gameType === 'quiz_carry') return true;
+  }
+  const md = space.mapData;
+  if (md && md.gameType === 'quiz_carry') return true;
+  return !!(space.previewEditorTest
+    || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+}
+
+io.on('connection', (socket) => {
+  socket.on('join-space', ({ spaceId, nickname, characterId, playMapId, desiredLobbyColorThemeIndex, desiredLobbySkinToneIndex }, cb) => {
+    const space = spaces.get(spaceId);
+    if (!space || !space.mapData) return cb && cb({ ok: false, error: 'ไม่พบห้อง' });
+    const maxPlayers = space.maxPlayers || 10;
+    const mdJoinPre = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (mdJoinPre && mdJoinPre.gameType === 'gauntlet' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'เกมพรมแดงรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (mdJoinPre && mdJoinPre.gameType === 'space_shooter' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'ยิงยานอวกาศรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (mdJoinPre && mdJoinPre.gameType === 'balloon_boss' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'ลูกโป้งยิงบอสรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (space.peers.size >= maxPlayers) return cb && cb({ ok: false, error: 'ห้องเต็มแล้ว (' + space.peers.size + '/' + maxPlayers + ')' });
+    const joinNickNorm = normalizeLobbyNickname(nickname);
+    if (space.joinLocked) {
+      const wl = space.caseParticipantNicknames;
+      if (wl && wl.size > 0) {
+        if (!wl.has(joinNickNorm)) {
+          return cb && cb({ ok: false, error: 'ห้องนี้เริ่มคดีแล้ว ไม่รับผู้เล่นเพิ่ม' });
+        }
+      } else {
+        return cb && cb({ ok: false, error: 'ห้องนี้เริ่มคดีแล้ว ไม่รับผู้เล่นเพิ่ม' });
+      }
+    }
+    socket.join(spaceId);
+    socket.data.spaceId = spaceId;
+    if (!space.hostId) space.hostId = socket.id;
+    if (serverMapIsPostCaseLobbyB(space)) initTroublesomeState(space);
+    ensurePeerLobbyThemes(space);
+    const mdJoin = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const spawnJoinOrder = space.peers.size;
+    const spawnPt = pickSpawnForJoin(mdJoin, spawnJoinOrder);
+    const bbStartBalloons = Math.max(1, Math.min(12, Math.floor(Number(mdJoin.balloonBossBalloonsPerPlayer)) || 3));
+    /* ใช้สีที่ client เลือกไว้ใน Main-Lobby — คนจริงสำคัญกว่าบอท */
+    let chosenThemeIdx = parseInt(desiredLobbyColorThemeIndex, 10);
+    if (chosenThemeIdx >= 1 && chosenThemeIdx <= LOBBY_THEME_COUNT) {
+      /* ถ้ามี "ผู้เล่นจริงคนอื่น" ถือสีนี้แล้ว → fallback สุ่มใหม่ */
+      let takenByHuman = false;
+      space.peers.forEach((p) => {
+        const ti = parseInt(p.lobbyColorThemeIndex, 10);
+        if (ti === chosenThemeIdx) takenByHuman = true;
+      });
+      if (takenByHuman) {
+        chosenThemeIdx = pickFreeLobbyThemeIndex(space);
+      } else if (space.lobbyBotThemeBySlot && typeof space.lobbyBotThemeBySlot === 'object') {
+        /* ถ้าบอทใช้สีนี้ → ดันบอทไปสีอื่น (เคลียร์ slot.themeIndex; syncLobbyBotThemeSlots ใน joinCb จะหาสีใหม่ที่ไม่ชนกับ peer ใหม่) */
+        Object.keys(space.lobbyBotThemeBySlot).forEach((k) => {
+          const slot = space.lobbyBotThemeBySlot[k];
+          if (slot && parseInt(slot.themeIndex, 10) === chosenThemeIdx) slot.themeIndex = 0;
+        });
+      }
+    } else {
+      chosenThemeIdx = pickFreeLobbyThemeIndex(space);
+    }
+    let chosenSkinIdx = parseInt(desiredLobbySkinToneIndex, 10);
+    if (!(chosenSkinIdx >= 1 && chosenSkinIdx <= LOBBY_SKIN_COUNT)) {
+      chosenSkinIdx = pickLobbySkinIndexForSlot(spawnJoinOrder);
+    }
+    const peer = {
+      id: socket.id, x: +spawnPt.x, y: +spawnPt.y, direction: 'down', nickname: nickname || 'ผู้เล่น', ready: false, characterId: characterId || null, voiceMicOn: true,
+      spawnJoinOrder,
+      lobbyColorThemeIndex: chosenThemeIdx,
+      lobbySkinToneIndex: chosenSkinIdx,
+      gauntletJumpTicks: 0, gauntletScore: 0, gauntletJumpPending: false, gauntletEliminated: false, spaceShooterScore: 0,
+      balloonBossScore: 0, balloonBossBossDmg: 0, balloonBossBalloons: mdJoin.gameType === 'balloon_boss' ? bbStartBalloons : 5, balloonBossEliminated: false,
+    };
+    if (mdJoin.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(mdJoin)) {
+      const sn = snapPositionOntoQuizBattlePathServer(mdJoin, Number(peer.x) + 0.5, Number(peer.y) + 0.5);
+      peer.x = sn.x;
+      peer.y = sn.y;
+    }
+    space.peers.set(socket.id, peer);
+    /* กลับ LobbyB เฉพาะเมื่อไม่ได้เข้า play ฉากมินิเกมที่กำลังเล่น (เช่น refresh room-lobby) */
+    if (space.detectiveMinigameActive) {
+      const clientMap = playMapId != null ? String(playMapId).trim() : '';
+      const activeMap = space.mapId != null ? String(space.mapId).trim() : '';
+      if (!clientMap || !activeMap || clientMap !== activeMap) {
+        returnDetectiveSpaceToLobbyB(spaceId, space, 'กลับ LobbyB');
+      }
+    }
+    if (spaceAllowsQuizCarryLobbyRelaxed(space)) {
+      if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') space.quizCarryLobbyReady = {};
+      space.quizCarryLobbyReady[socket.id] = false;
+      io.to(spaceId).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+    }
+    if (mdJoin.gameType === 'gauntlet') {
+      const ord = [...space.peers.keys()].indexOf(socket.id);
+      const pos = gauntletSpawnPositions(mdJoin, space.peers.size);
+      const pt = pos[ord] != null ? pos[ord] : pos[pos.length - 1];
+      peer.x = pt.x;
+      peer.y = pt.y;
+      peer.gauntletJumpTicks = 0;
+      if (isGauntletCrownHeistMapBySpace(space)) {
+        peer.gauntletScore = 100;
+        peer.gauntletEliminated = false;
+        if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+        space.gauntletCrownLobbyReady[socket.id] = false;
+        io.to(spaceId).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+      }
+      startGauntletTicker(spaceId, space);
+    } else if (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space)) {
+      if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+      space.gauntletCrownLobbyReady[socket.id] = false;
+      if (!space.gauntletRun) space.gauntletRun = newBalloonBossShellGauntletRunState();
+      io.to(spaceId).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+    }
+    const peersList = [...space.peers.values()];
+    const mapDataOut = (space.mapId && maps.get(space.mapId)) || space.mapData || mdJoin;
+    const joinCb = {
+      ok: true,
+      mapData: mapDataOut,
+      mapId: space.mapId || null,
+      peers: peersList,
+      hostId: space.hostId,
+      spaceName: space.spaceName || spaceId,
+      isPrivate: !!space.isPrivate,
+      roomCode: space.isPrivate ? spaceId : null,
+      maxPlayers: space.maxPlayers || 10,
+      suspectPhaseActive: !!space.suspectPhaseActive && serverMapIsPostCaseLobbyB(space),
+      suspectPickIndex: typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0,
+      cardMinigames: space.suspectCardMinigames || [],
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+      botSlotCount: effectiveBotSlotCount(space),
+      lobbyBotThemes: syncLobbyBotThemeSlots(space),
+      joinLocked: !!space.joinLocked,
+    };
+    if (serverMapIsPostCaseLobbyB(space)) {
+      joinCb.detectiveLobbyLevel = space.detectiveLobbyLevel != null ? space.detectiveLobbyLevel : null;
+      joinCb.detectiveLobbyCaseId = space.detectiveLobbyCaseId != null ? space.detectiveLobbyCaseId : null;
+    }
+    if (mdJoin.gameType === 'quiz_carry' || spaceAllowsQuizCarryLobbyRelaxed(space)) {
+      try {
+        const qs = loadQuizSettings();
+        joinCb.quizCarrySettingsSnap = {
+          carryMapPanelTheme: qs.carryMapPanelTheme,
+          carryEmbedCountdownTheme: qs.carryEmbedCountdownTheme,
+          carryChoicePlaqueThemes: qs.carryChoicePlaqueThemes,
+          carryChoicePlaqueTheme: qs.carryChoicePlaqueTheme,
+          carryChoicePlaqueMapScale: qs.carryChoicePlaqueMapScale,
+          carryReadMs: qs.carryReadMs,
+          carryAnswerMs: qs.carryAnswerMs,
+          carrySessionLength: qs.carrySessionLength,
+          carryWalkSpeedMultForMapId: qs.carryWalkSpeedMultForMapId,
+          carryWalkSpeedMult: qs.carryWalkSpeedMult,
+        };
+      } catch (e) { /* ignore */ }
+    }
+    if (mdJoin.gameType === 'quiz') {
+      try {
+        const qsQuiz = loadQuizSettings();
+        joinCb.quizSettingsSnap = {
+          quizMapPanelTheme: qsQuiz.quizMapPanelTheme,
+        };
+      } catch (e) { /* ignore */ }
+    }
+    if (mdJoin.gameType === 'gauntlet' && space.gauntletRun) {
+      joinCb.gauntletEndsAt = space.gauntletRun.endsAt != null ? space.gauntletRun.endsAt : null;
+    }
+    if ((isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space)) && space.gauntletRun) {
+      joinCb.gauntletCrownRunHeld = !!space.gauntletRun.crownRunHeld;
+    }
+    /* ไอคอนคำถามพิเศษของรอบนี้ (ถ้ามีและยังไม่ถูกทริก) */
+    const sqIcon = specialQuizIconPayload(space);
+    if (sqIcon) joinCb.specialQuizIcon = sqIcon;
+    if (typeof cb === 'function') cb(joinCb);
+    emitLobbyTintSync(spaceId, space);
+    socket.to(spaceId).emit('user-joined', peer);
+    if (space.voiceInits) {
+      for (const [peerId, initData] of Object.entries(space.voiceInits)) {
+        if (space.peers.get(peerId)?.voiceMicOn) socket.emit('voice-init', { from: peerId, data: initData });
+      }
+    }
+  });
+
+  /** ผู้เล่นเดินชนไอคอนคำถามพิเศษ — ใครชนก่อนเป็นคนเปิดเซสชันให้ทั้งห้อง */
+  /** debug: บังคับ spawn ไอคอนทุกรอบในเซสชันนี้ (เปิดด้วย ?sqForce=1) */
+  socket.on('special-quiz-force', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    space.forceSpecialQuiz = !!(data && data.on);
+    console.log('[special-quiz] force flag =', space.forceSpecialQuiz, 'by', socket.id);
+  });
+
+  /** Test Mode (จาก localStorage ฝั่ง client) — เปิด shortcut ทดสอบ เช่น Ctrl+Q ตอบถูก */
+  socket.on('special-quiz-testmode', (data) => {
+    socket.data.testMode = !!(data && data.on);
+  });
+
+  socket.on('special-quiz-collide', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const sq = space.specialQuiz;
+    if (!sq || sq.triggered || sq.done) return reply({ ok: false });
+    const started = startSpecialQuizSession(sid, space);
+    reply({ ok: !!started });
+  });
+
+  /** ผู้เล่นส่งคำตอบของข้อปัจจุบัน */
+  socket.on('special-quiz-answer', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const sess = space.specialQuiz && space.specialQuiz.session;
+    if (!sess || sess.resolving) return reply({ ok: false });
+    const q = sess.questions[sess.qIndex];
+    if (!q) return reply({ ok: false });
+    /* Test Mode: Ctrl+Q เติมคำตอบที่ถูกให้ (เฉพาะ socket ที่เปิด test mode) */
+    let choice;
+    if (data && data.debugCorrect && socket.data.testMode) {
+      choice = q.correctIndex;
+    } else {
+      choice = Number(data && data.choiceIndex);
+    }
+    if (!Number.isInteger(choice) || choice < 0 || choice >= q.choices.length) {
+      return reply({ ok: false });
+    }
+    if (Number.isInteger(sess.answers[socket.id])) return reply({ ok: false, error: 'ตอบไปแล้ว' });
+    sess.answers[socket.id] = choice;
+    reply({ ok: true });
+    /* แจ้งทุกคนว่าคนนี้ตอบแล้ว (ยังไม่เปิดเผยว่าตอบอะไรจนกว่าจะเฉลย) */
+    io.to(sid).emit('special-quiz-answer-update', { id: socket.id, answered: true });
+    /* ตอบครบทุกคน (จริง+บอท) แล้วตัดสินทันที ไม่ต้องรอหมดเวลา */
+    maybeResolveSpecialQuizAllAnswered(sid, space);
+  });
+
+  /** ผู้เล่นกด «เล่นต่อ» หลังโชว์การ์ดพิเศษ — เล่นรอบ quiz ต่อ (คนแรกที่กดพอ) */
+  socket.on('special-quiz-continue', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    finishSpecialQuizContinue(sid, space);
+    reply({ ok: true });
+  });
+
+  /** เปลี่ยนสีเสื้อ/ผิวใน lobby — ห้ามเลือกสีที่คนอื่นใช้แล้ว */
+  socket.on('lobby-tint-update', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    const peer = space && space.peers.get(socket.id);
+    if (!space || !peer) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    let themeIndex = Math.floor(Number(data && data.themeIndex));
+    let skinIndex = Math.floor(Number(data && data.skinToneIndex));
+    if (!Number.isFinite(themeIndex) || themeIndex < 1 || themeIndex > LOBBY_THEME_COUNT) {
+      return reply({ ok: false, error: 'ธีมสีไม่ถูกต้อง' });
+    }
+    if (!Number.isFinite(skinIndex) || skinIndex < 1 || skinIndex > LOBBY_SKIN_COUNT) {
+      skinIndex = peer.lobbySkinToneIndex || 1;
+    }
+    const taken = getTakenLobbyThemeIndices(space, socket.id);
+    if (taken.has(themeIndex)) return reply({ ok: false, error: 'สีเสื้อนี้มีคนใช้แล้ว' });
+    peer.lobbyColorThemeIndex = themeIndex;
+    peer.lobbySkinToneIndex = skinIndex;
+    emitLobbyTintSync(sid, space);
+    reply({
+      ok: true,
+      lobbyColorThemeIndex: themeIndex,
+      lobbySkinToneIndex: skinIndex,
+      lobbyBotThemes: space.lobbyBotThemeBySlot ? syncLobbyBotThemeSlots(space) : [],
+    });
+  });
+
+  /** เปลี่ยนชื่อที่แสดงใน lobby / เกม (ซิงก์ทุก client ในห้อง) */
+  socket.on('update-display-name', ({ nickname }, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const p = space.peers.get(socket.id);
+    if (!p) return reply({ ok: false, error: 'ไม่พบผู้เล่น' });
+    let safe = String(nickname || '').trim();
+    if (!safe) return reply({ ok: false, error: 'ชื่อว่าง' });
+    try {
+      safe = safe.normalize('NFKC');
+    } catch (e) { /* ignore */ }
+    if (safe.length > 32) safe = safe.slice(0, 32);
+    const oldNorm = normalizeLobbyNickname(p.nickname);
+    const newNorm = normalizeLobbyNickname(safe);
+    p.nickname = safe;
+    if (space.caseParticipantNicknames && space.caseParticipantNicknames.size > 0) {
+      if (space.caseParticipantNicknames.has(oldNorm)) {
+        space.caseParticipantNicknames.delete(oldNorm);
+        space.caseParticipantNicknames.add(newNorm);
+      }
+    }
+    io.to(sid).emit('peer-display-name', { id: socket.id, nickname: safe });
+    reply({ ok: true, nickname: safe });
+  });
+
+  /** ห้องทดสอบจากเอดิเตอร์ (ชื่อ preview) — สลับโฮสต์ให้เครื่องนี้กดเริ่มเกมได้ */
+  socket.on('preview-claim-host', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const isPreviewEditorRoom = !!(space.previewEditorTest
+      || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+    if (!isPreviewEditorRoom) return reply({ ok: false, error: 'ใช้ได้เฉพาะห้องทดสอบจากเอดิเตอร์' });
+    space.hostId = socket.id;
+    io.to(sid).emit('host-changed', { hostId: socket.id });
+    return reply({ ok: true });
+  });
+
+  socket.on('troublesome-eligible', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space) || space.troublesomeOfferSent) return;
+    initTroublesomeState(space);
+    space.troublesomeEligible.add(socket.id);
+    scheduleTroublesomeRoll(sid);
+  });
+
+  socket.on('troublesome-response', (data) => {
+    const accept = !!(data && data.accept);
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space)) return;
+    if (space.troublesomeTargetId && socket.id !== space.troublesomeTargetId) return;
+    if (space.troublesomeResponseReceived) return;
+    space.troublesomeResponseReceived = true;
+    space.troublesomeAccept = accept;
+    let idx = Math.floor(Number(space.suspectPickIndex));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) idx = 0;
+    space.suspectPickIndex = idx;
+    if (!space.suspectCardMinigames || space.suspectCardMinigames.length < 3) {
+      assignDetectiveSuspectCardMinigames(space);
+    }
+    space.suspectPhaseActive = true;
+    const phaseBase = {
+      hostId: space.hostId,
+      selectedIndex: space.suspectPickIndex,
+      disruptorAccepted: accept,
+      cardMinigames: space.suspectCardMinigames || [],
+    };
+    space.peers.forEach((_p, pid) => {
+      const sock = io.sockets.sockets.get(pid);
+      if (!sock) return;
+      sock.emit('suspect-phase-open', {
+        ...phaseBase,
+        myPlayerEvidence: clonePlayerEvidence(space, pid),
+        suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+      });
+    });
+    socket.emit('troublesome-ack', { ok: true, accept });
+  });
+
+  socket.on('suspect-pick-select', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space) || !space.suspectPhaseActive) return;
+    if (space.hostId !== socket.id) return;
+    let idx = Math.floor(Number(data && data.index));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) return;
+    space.suspectPickIndex = idx;
+    io.to(sid).emit('suspect-pick-update', { selectedIndex: idx });
+  });
+
+  socket.on('suspect-pick-start', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (space && Array.isArray(space.suspectCardMinigames)) {
+      space.suspectCardMinigames = space.suspectCardMinigames.map(normalizeDetectiveCardEntry);
+    }
+    if (!space || !serverMapIsPostCaseLobbyB(space)) {
+      return reply({ ok: false, error: 'ไม่พร้อม — ต้องอยู่โถง LobbyB' });
+    }
+    if (!space.suspectPhaseActive) {
+      return reply({ ok: false, error: 'ไม่อยู่ในขั้นเลือกผู้ต้องสงสัย' });
+    }
+    if (space.hostId !== socket.id) {
+      return reply({ ok: false, error: 'เฉพาะ host กดเริ่มสืบสวนได้' });
+    }
+    if (!space.suspectCardMinigames || space.suspectCardMinigames.length < 3) {
+      assignDetectiveSuspectCardMinigames(space);
+    }
+    const selectedIndex = typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0;
+    const cardEntry = space.suspectCardMinigames[selectedIndex];
+    if (!cardEntry || !cardEntry.mapId) {
+      return reply({ ok: false, error: 'ยังไม่ได้สุ่มมินิเกมสำหรับการ์ดนี้' });
+    }
+    /* Card 3 Ban — ก่อนเริ่มมินิเกมรอบหน้า โหวตเลือกผู้เล่น 1 คนที่ห้ามเล่น */
+    const pend = space.pendingSpecialCard;
+    if (pend && Number(pend.cardId) === 3 && !pend.consumed && !space.pickVote) {
+      pend.consumed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'ban' });
+      startPlayerPickVote(sid, space, 'ban', (targetId) => {
+        const sp = spaces.get(sid);
+        if (!sp) return;
+        sp.bannedPlayerId = targetId || null;
+        const res = beginDetectiveSuspectMinigame(sid, sp, cardEntry, selectedIndex);
+        if (!res || !res.ok) {
+          io.to(sid).emit('quiz-ended', { message: (res && res.error) || 'เริ่มมินิเกมไม่สำเร็จ', returnToLobbyB: true });
+        }
+      });
+      return reply({ ok: true, banVote: true });
+    }
+    const started = beginDetectiveSuspectMinigame(sid, space, cardEntry, selectedIndex);
+    reply(started);
+  });
+
+  socket.on('detective-minigame-finished', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) {
+      return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    }
+    if (!space.detectiveMinigameActive) {
+      if (serverMapIsPostCaseLobbyB(space)) {
+        const grant = grantDetectiveEvidenceForCurrentRun(sid, space, [socket.id]);
+        return reply({
+          ok: true,
+          alreadyOnLobbyB: true,
+          suspectIndex: grant.suspectIdx,
+          awardedCard: grant.awarded && grant.awarded[socket.id] != null ? grant.awarded[socket.id] : null,
+          awardedCards: (grant.awardedList && grant.awardedList[socket.id]) || [],
+          grade: grant.grade || null,
+          freeEvidenceCount: grant.freeEvidenceCount || 0,
+          myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+          suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+        });
+      }
+      return reply({ ok: false, error: 'ไม่ได้อยู่ในมินิเกมสืบสวน' });
+    }
+    // เล่นมินิเกม 1 ครั้ง = ได้การ์ด 1 ใบ (ไม่ขึ้นเกรด/คะแนน)
+    returnDetectiveSpaceToLobbyB(sid, space, 'จบมินิเกม — กลับ LobbyB', { allPlayers: true });
+    const g = space.lastEvidenceGrant || {};
+    reply({
+      ok: true,
+      suspectIndex: typeof g.suspectIdx === 'number' ? g.suspectIdx : -1,
+      awardedCard: (g.awarded && g.awarded[socket.id] != null) ? g.awarded[socket.id] : null,
+      awardedCards: (g.awardedList && g.awardedList[socket.id]) || [],
+      grade: g.grade || null,
+      freeEvidenceCount: g.freeEvidenceCount || 0,
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+    });
+  });
+
+  /**
+   * DEBUG/TEST hotkey — เก็บหลักฐาน 1 ใบให้ผู้ต้องสงสัย (suspectIndex 0–2) ทันที
+   * (ใช้สำหรับเทสต์ Ctrl+1/2/3 — เทียบเท่าเล่นมินิเกมจบ 1 ครั้ง)
+   */
+  socket.on('detective-debug-award-evidence', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!serverMapIsPostCaseLobbyB(space)) return reply({ ok: false, error: 'ต้องอยู่โถง LobbyB' });
+    const idx = Math.floor(Number(data && data.suspectIndex));
+    if (!(idx >= 0 && idx <= 2)) return reply({ ok: false, error: 'suspectIndex ต้องเป็น 0–2' });
+    const card = awardRandomEvidenceCardToPlayer(space, socket.id, idx, 'C');
+    if (card == null) return reply({ ok: false, error: 'ไม่มีรูปการ์ดในพูลของ suspect นี้' });
+    emitLobbyEvidenceSync(sid, space);
+    reply({
+      ok: true,
+      suspectIndex: idx,
+      awardedCard: card,
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+    });
+  });
+
+  // Host เปิดขั้นพิจารณาคดี (ต้องสืบครบ 3 ผู้ต้องสงสัย)
+  socket.on('suspect-accuse-open', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space)) return reply({ ok: false, error: 'ต้องอยู่โถง LobbyB' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host เปิดพิจารณาคดีได้' });
+    const prog = playerSuspectProgressFromEvidence(space, socket.id);
+    if (![0, 1, 2].every((i) => (prog[i] || 0) >= 1)) return reply({ ok: false, error: 'ต้องสืบครบทั้ง 3 ผู้ต้องสงสัยก่อน (เก็บหลักฐานอย่างน้อย 1 ใบต่อคน)' });
+    if (typeof space.culpritIndex !== 'number') space.culpritIndex = Math.floor(Math.random() * 3);
+    space.suspectPhaseActive = false;
+    // เริ่ม "ห้องสรุปหลักฐาน" (ไต่สวน 3 ปากคำ) ก่อนเข้าโหวต
+    space.testimonyActive = true;
+    space.testimonyRound = 0;
+    emitTestimonyOpen(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นส่งหลักฐาน 1–2 ใบในปากคำปัจจุบัน — ใบที่ส่งต้องเป็นใบที่ตัวเองเก็บได้จริง
+  socket.on('testimony-submit', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!space.testimonyActive) return reply({ ok: false, error: 'ไม่อยู่ในขั้นไต่สวน' });
+    if (space.testimonyRevealed) return reply({ ok: false, error: 'ปากคำนี้เปิดเผยแล้ว' });
+    const raw = (data && Array.isArray(data.picks)) ? data.picks : [];
+    const owned = normalizeEvidenceSlotList(clonePlayerEvidence(space, socket.id)[space.testimonyRound] || []);
+    const required = Math.max(1, Math.min(2, owned.length));
+    /* raw = ตำแหน่ง index ใน owned (0..n-1) → เก็บเป็น card object */
+    const usedIdx = [];
+    const picks = [];
+    raw.forEach((n) => {
+      const v = Math.floor(Number(n));
+      if (v >= 0 && v < owned.length && usedIdx.indexOf(v) === -1) { usedIdx.push(v); picks.push(owned[v]); }
+    });
+    if (owned.length === 0) {
+      /* ไม่มีหลักฐานของ suspect รอบนี้ — ข้ามได้ (auto-submit ว่าง) */
+      if (!space.testimonySubmitted) space.testimonySubmitted = {};
+      space.testimonySubmitted[socket.id] = [];
+      emitTestimonyStatus(sid, space);
+      /* ไม่ auto-reveal — รอ host กดปุ่ม "เปิดหลักฐานทั้งหมด" เองตาม design */
+      return reply({ ok: true, skipped: true });
+    }
+    if (picks.length !== required) {
+      return reply({ ok: false, error: 'ต้องเลือกหลักฐาน ' + required + ' ใบ (ตามจำนวนที่เก็บได้)' });
+    }
+    if (!space.testimonySubmitted) space.testimonySubmitted = {};
+    space.testimonySubmitted[socket.id] = picks.slice(0, required);
+    emitTestimonyStatus(sid, space);
+    /* ไม่ auto-reveal — รอ host กดปุ่ม "เปิดหลักฐานทั้งหมด" เองตาม design
+       (UX: host ต้องเห็นปุ่มเปลี่ยนรูปจาก btn-send → btn-open-card แล้วค่อยกดเอง) */
+    reply({ ok: true });
+  });
+
+  // Host บังคับเปิดเผยหลักฐานทั้งหมด (เผื่อมีคนยังไม่ส่ง)
+  socket.on('testimony-reveal', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (!space.testimonyActive || space.testimonyRevealed) return reply({ ok: false, error: 'เปิดเผยไม่ได้ตอนนี้' });
+    doTestimonyReveal(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นกด READY ไปปากคำถัดไป (หลังเปิดเผยผล) — ไม่ auto-advance รอ host กด "เริ่มพิจารณาคดี"
+  socket.on('testimony-ready-next', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!space.testimonyActive || !space.testimonyRevealed) return reply({ ok: false, error: 'ยังเปิดเผยไม่ได้' });
+    if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+    space.testimonyReadyNext[socket.id] = true;
+    const totalRN = testimonyTotalParticipants(space);
+    io.to(sid).emit('testimony-ready-update', {
+      ready: Object.keys(space.testimonyReadyNext),
+      totalPlayers: totalRN,
+      hostId: space.hostId,
+    });
+    /* ไม่ auto-advance — รอ host กดปุ่ม "เริ่มพิจารณาคดี" (btn-start-vote.png) เอง */
+    reply({ ok: true });
+  });
+
+  // Host กดปุ่ม "เริ่มพิจารณาคดี" (btn-start-vote) — ไปปากคำถัดไป/เข้าโหวต
+  socket.on('testimony-start-vote', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (!space.testimonyActive || !space.testimonyRevealed) return reply({ ok: false, error: 'ยังไม่ถึงเวลา' });
+    /* host อาจกดก่อนทุกคน READY — บังคับให้ทุกคน (รวมบอท) ready ก่อน advance เพื่อให้ flow consistent */
+    if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+    testimonyBotIds(space).forEach((bid) => { space.testimonyReadyNext[bid] = true; });
+    advanceTestimony(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นโหวตชี้ตัวคนร้าย
+  socket.on('trial-vote', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.trialPhase !== 'voting') return reply({ ok: false, error: 'ยังไม่ถึงเวลาโหวต' });
+    if (socket.id === space.silencedPlayerId) return reply({ ok: false, error: 'คุณถูกปิดปาก (Silence) — โหวตรอบนี้ไม่ได้', silenced: true });
+    let idx = Math.floor(Number(data && data.index));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) return reply({ ok: false, error: 'เลือกผู้ต้องสงสัยไม่ถูกต้อง' });
+    space.trialVotes = space.trialVotes || {};
+    space.trialVotes[socket.id] = idx;
+    emitTrialVoteUpdate(sid, space);
+    const totalTV = trialEligibleVoterTotal(space);
+    if (Object.keys(space.trialVotes).length >= totalTV && totalTV > 0) {
+      computeAndEmitTrialResult(sid, space);
+    }
+    reply({ ok: true, index: idx });
+  });
+
+  // Host บังคับเปิดเผยผล (เช่นมีคนยังไม่โหวต)
+  socket.on('trial-reveal', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (space.trialPhase !== 'voting') return reply({ ok: false, error: 'ไม่อยู่ในขั้นโหวต' });
+    computeAndEmitTrialResult(sid, space);
+    reply({ ok: true });
+  });
+
+  /* โหวตเลือกผู้เล่น 1 คน (Silence/Ban) */
+  socket.on('player-pick-vote', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const pv = space.pickVote;
+    if (!pv || pv.resolved) return reply({ ok: false, error: 'ไม่มีการโหวตที่เปิดอยู่' });
+    const tid = String((data && data.targetId) || '');
+    if (!pv.candidates.some((c) => c.id === tid)) return reply({ ok: false, error: 'เป้าหมายไม่ถูกต้อง' });
+    pv.votes[socket.id] = tid;
+    reply({ ok: true, targetId: tid });
+    emitPickVoteUpdate(sid, space);
+    maybeResolvePickVote(sid, space);
+  });
+
+  /** Host Console — ตั้งจำนวนรวม (คน+บอท) ไม่เกิน LOBBY_SLOT_TOTAL */
+  socket.on('host-console-apply', (data, cb) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || space.hostId !== socket.id) {
+      return cb && cb({ ok: false, error: 'เฉพาะ Host เท่านั้น' });
+    }
+    const humans = space.peers.size;
+    let total = parseInt(data && data.totalSlots, 10);
+    if (!Number.isFinite(total)) total = humans + effectiveBotSlotCount(space);
+    total = Math.min(LOBBY_SLOT_TOTAL, Math.max(humans, total));
+    let bots = parseInt(data && data.botSlotCount, 10);
+    if (!Number.isFinite(bots)) bots = total - humans;
+    bots = Math.max(0, Math.min(LOBBY_SLOT_TOTAL - humans, bots));
+    total = humans + bots;
+    space.botSlotCount = bots;
+    space.maxPlayers = Math.max(humans, total - bots);
+    const lobbyBotThemes = syncLobbyBotThemeSlots(space);
+    io.to(sid).emit('host-console-settings', {
+      maxPlayers: space.maxPlayers,
+      botSlotCount: space.botSlotCount,
+      totalSlots: total,
+      lobbyBotThemes,
+    });
+    emitLobbyTintSync(sid, space);
+    cb && cb({ ok: true, maxPlayers: space.maxPlayers, botSlotCount: space.botSlotCount, totalSlots: total, lobbyBotThemes });
+  });
+
+  socket.on('host-console-kick-peer', ({ targetId }, cb) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || space.hostId !== socket.id) {
+      return cb && cb({ ok: false, error: 'เฉพาะ Host เท่านั้น' });
+    }
+    const tid = targetId != null ? String(targetId) : '';
+    if (!tid || tid === socket.id || tid === space.hostId) {
+      return cb && cb({ ok: false, error: 'ไม่สามารถลบผู้เล่นนี้ได้' });
+    }
+    if (!space.peers.has(tid)) {
+      return cb && cb({ ok: false, error: 'ไม่พบผู้เล่นในห้อง' });
+    }
+    const targetSock = io.sockets.sockets.get(tid);
+    if (targetSock) {
+      targetSock.emit('host-console-kicked', { message: 'คุณถูก Host นำออกจากห้อง' });
+      targetSock.leave(sid);
+      delete targetSock.data.spaceId;
+    }
+    space.peers.delete(tid);
+    io.to(sid).emit('user-left', { id: tid });
+    cb && cb({ ok: true });
+  });
+
+  /* พร้อมแล้ว — ไม่บังคับจำนวนคนในห้อง */
+  socket.on('set-ready', ({ ready }) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        if (p) p.ready = !!ready;
+        io.to(sid).emit('peer-ready', { id: socket.id, ready: !!ready });
+        break;
+      }
+    }
+  });
+
+  socket.on('start-game', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id) && space.hostId === socket.id) {
+        let lobbyLevel = (data && data.lobbyLevel != null) ? String(data.lobbyLevel).trim() : '';
+        let caseId = (data && data.caseId != null) ? String(data.caseId).trim() : '';
+        if (lobbyLevel && !/^[1-5]$/.test(lobbyLevel)) lobbyLevel = '';
+        /* 15 คดี (5 ระดับ × 3 คดี) — caseId 1-15 */
+        if (caseId && !/^(?:[1-9]|1[0-5])$/.test(caseId)) caseId = '';
+        ensurePostCaseLobbyMapLoaded();
+        const mdBefore = getLobbyLayoutMapForSpace(space);
+        if (mdBefore && mdBefore.gameType === 'quiz') {
+          const qErr = validateQuizMap(mdBefore);
+          if (qErr) return reply({ ok: false, error: qErr });
+          clearSpaceQuizTimers(space);
+          startQuizGame(sid, space, mdBefore);
+          io.to(sid).emit('game-start', { quizMode: true, stayInRoomLobby: true });
+          return reply({ ok: true });
+        }
+        const detectiveB = !!(data && data.detectiveLobbyBStart);
+        if (detectiveB && (!lobbyLevel || !caseId)) {
+          return reply({ ok: false, error: 'กรุณาเลือกระดับและคดีให้ครบก่อนเริ่ม' });
+        }
+        const mapNameNorm = mdBefore ? String(mdBefore.name || '').trim().toLowerCase() : '';
+        const isNamedLobbyA = mapNameNorm === 'lobbya';
+        const notZepOrFrogger = !!(mdBefore && mdBefore.gameType !== 'zep' && mdBefore.gameType !== 'frogger' && mdBefore.gameType !== 'gauntlet');
+        /* LobbyA: gameType lobby, หรือชื่อฉาก LobbyA (กันเซฟผิดเป็น zep), หรือ wizard + ไม่ใช่มินิเกม zep/frogger/gauntlet (รวม quiz/stack ฯลฯ) */
+        const isLobbyADetectiveStart = !!(mdBefore && !lobbySpaceAlreadyLobbyB(space, mdBefore)
+          && lobbyLevel && caseId && maps.has(POST_CASE_LOBBY_SPACE_ID)
+          && (
+            mdBefore.gameType === 'lobby'
+            || isNamedLobbyA
+            || (detectiveB && notZepOrFrogger)
+          ));
+        if (detectiveB && lobbyLevel && caseId && !isLobbyADetectiveStart) {
+          return reply({ ok: false, error: 'ย้ายไป LobbyB ไม่ได้ — ต้องอยู่ฉาก LobbyA (หรือล็อบบี้ชื่อ LobbyA) และเซิร์ฟต้องมีไฟล์แผนที่ LobbyB' });
+        }
+        if (!lobbyHostStandingInStartArea(space, socket.id)) {
+          return reply({ ok: false, error: 'ยืนในพื้นที่เริ่มเกม (สีส้มในเอดิเตอร์) ก่อนกดเริ่ม' });
+        }
+        if (isLobbyADetectiveStart) {
+          assignDetectiveSuspectCardMinigames(space);
+          space.mapId = POST_CASE_LOBBY_SPACE_ID;
+          space.mapData = maps.get(POST_CASE_LOBBY_SPACE_ID);
+          const caseNickWl = new Set();
+          space.peers.forEach((p) => {
+            caseNickWl.add(normalizeLobbyNickname(p.nickname));
+          });
+          space.caseParticipantNicknames = caseNickWl;
+          space.joinLocked = true;
+          space.troublesomeOfferSent = false;
+          space.troublesomeTargetId = null;
+          space.troublesomeResponseReceived = false;
+          space.suspectPhaseActive = false;
+          space.suspectPickIndex = 0;
+          space.detectiveLobbyLevel = Number(lobbyLevel) || 1;
+          space.detectiveLobbyCaseId = Number(caseId) || 1;
+          space.caseId = Number(caseId) || 1;
+          if (space.troublesomeEligible) space.troublesomeEligible.clear();
+          else space.troublesomeEligible = new Set();
+          if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+          if (space.troublesomeMaxTimer) clearTimeout(space.troublesomeMaxTimer);
+          space.troublesomeDebTimer = null;
+          space.troublesomeMaxTimer = null;
+          initTroublesomeState(space);
+          let li = 0;
+          space.peers.forEach((p) => {
+            const sp = pickSpawnForJoin(space.mapData, li++);
+            p.x = sp.x;
+            p.y = sp.y;
+            p.direction = 'down';
+          });
+          const peersSnap = [...space.peers.values()].map((p) => ({
+            id: p.id,
+            x: p.x,
+            y: p.y,
+            direction: p.direction || 'down',
+            nickname: p.nickname,
+            ready: !!p.ready,
+            characterId: p.characterId ?? null
+          }));
+          space.peers.forEach((_p, pid) => {
+            const sock = io.sockets.sockets.get(pid);
+            if (!sock) return;
+            sock.emit('game-start', {
+              stayInRoomLobby: true,
+              mapId: POST_CASE_LOBBY_SPACE_ID,
+              lobbyLevel,
+              caseId,
+              peersSnap,
+              cardMinigames: space.suspectCardMinigames || [],
+              myPlayerEvidence: clonePlayerEvidence(space, pid),
+              suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+            });
+          });
+          return reply({ ok: true });
+        }
+        const mapId = (data && data.mapId) ? String(data.mapId).trim() : null;
+        let peersSnap = null;
+        let gauntletEndsAtEmit = undefined;
+        if (mapId && maps.has(mapId)) {
+          const prevMapIdForReturn = space.mapId;
+          space.mapId = mapId;
+          space.mapData = maps.get(mapId);
+          const md = space.mapData;
+          if (md && md.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(md)) {
+            space.peers.forEach((p) => {
+              const sn = snapPositionOntoQuizBattlePathServer(md, Number(p.x), Number(p.y));
+              p.x = sn.x;
+              p.y = sn.y;
+            });
+          }
+          if (!md || md.gameType !== 'gauntlet') {
+            stopGauntletTicker(space);
+            space.gauntletReturnMapId = null;
+            space.gauntletRun = null;
+          }
+          if (md && md.gameType === 'gauntlet') {
+            stopGauntletTicker(space);
+            space.gauntletReturnMapId = prevMapIdForReturn;
+            initGauntletPeersAll(space, md);
+            ensureGauntletEndsAtIfNeeded(space);
+            startGauntletTicker(sid, space);
+            gauntletEndsAtEmit = space.gauntletRun && space.gauntletRun.endsAt != null
+              ? space.gauntletRun.endsAt
+              : null;
+            peersSnap = [...space.peers.values()].map((p) => ({
+              id: p.id,
+              x: p.x,
+              y: p.y,
+              direction: p.direction || 'down',
+              nickname: p.nickname,
+              ready: !!p.ready,
+              characterId: p.characterId ?? null,
+              gauntletJumpTicks: p.gauntletJumpTicks || 0,
+              gauntletScore: p.gauntletScore || 0,
+              gauntletEliminated: !!p.gauntletEliminated,
+            }));
+          }
+          if (md && (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space))) {
+            if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+            space.peers.forEach((_p, id) => {
+              space.gauntletCrownLobbyReady[id] = false;
+            });
+            space.gauntletRun = newBalloonBossShellGauntletRunState();
+          }
+        }
+        const gameStartPayload = {
+          mapId: mapId || undefined,
+          lobbyLevel: lobbyLevel || undefined,
+          caseId: caseId || undefined,
+          peersSnap: peersSnap || undefined,
+        };
+        if (peersSnap) gameStartPayload.gauntletEndsAt = gauntletEndsAtEmit != null ? gauntletEndsAtEmit : null;
+        if (mapId && maps.has(mapId) && (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space))) {
+          const grs = space.gauntletRun;
+          gameStartPayload.gauntletCrownRunHeld = !!(grs && grs.crownRunHeld);
+        }
+        io.to(sid).emit('game-start', gameStartPayload);
+        return reply({ ok: true });
+      }
+    }
+    reply({ ok: false, error: 'ไม่ใช่ host' });
+  });
+
+  socket.on('disconnect', () => {
+    let sid = socket.data.spaceId;
+    let space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) {
+      for (const [s, sp] of spaces) {
+        if (sp.peers.has(socket.id)) { sid = s; space = sp; break; }
+      }
+    }
+    if (!space || !space.peers.has(socket.id)) return;
+    const wasHost = space.hostId === socket.id;
+    if (space.voiceInits) delete space.voiceInits[socket.id];
+    if (space.troublesomeEligible) space.troublesomeEligible.delete(socket.id);
+    if (space.quizSession && space.quizSession.players) delete space.quizSession.players[socket.id];
+    if (space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket.delete(socket.id);
+    if (space.quizCarryLobbyReady && typeof space.quizCarryLobbyReady === 'object') {
+      delete space.quizCarryLobbyReady[socket.id];
+      if (spaceAllowsQuizCarryLobbyRelaxed(space)) {
+        io.to(sid).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+      }
+    }
+    if (space.gauntletCrownLobbyReady && typeof space.gauntletCrownLobbyReady === 'object') {
+      delete space.gauntletCrownLobbyReady[socket.id];
+      if (isCrownLobbyShellSpace(space)) {
+        io.to(sid).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+      }
+    }
+    space.peers.delete(socket.id);
+    if (space.peers.size === 0) {
+      stopGauntletTicker(space);
+      clearSpaceQuizTimers(space);
+      space.quizSession = null;
+      /* ระหว่างมินิเกมสืบสวน / คดีล็อก — อย่าลบห้องเมื่อเปลี่ยนหน้า room-lobby → play.html (รอ join กลับ) */
+      const keepCaseSpace = !!(space.detectiveMinigameActive
+        || (space.joinLocked && space.caseParticipantNicknames && space.caseParticipantNicknames.size > 0));
+      if (keepCaseSpace) {
+        space.hostId = null;
+        return;
+      }
+      spaces.delete(sid);
+    } else {
+      if (wasHost) {
+        const firstPeer = space.peers.values().next().value;
+        if (firstPeer) {
+          space.hostId = firstPeer.id;
+          io.to(sid).emit('host-changed', { hostId: firstPeer.id });
+        }
+      }
+      io.to(sid).emit('user-left', { id: socket.id });
+    }
+  });
+
+  socket.on('gauntlet-jump', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    const p = space.peers.get(socket.id);
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') return;
+    if (space.gauntletRun && space.gauntletRun.crownRunHeld) return;
+    if (isGauntletCrownHeistMapBySpace(space) && p.gauntletEliminated) return;
+    if ((p.gauntletJumpTicks || 0) > 0) return;
+    p.gauntletJumpPending = true;
+  });
+
+  socket.on('gauntlet-crown-begin-run', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const gr = space.gauntletRun;
+    if (!gr) return reply({ ok: false });
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const okGauntletCrown = md && md.gameType === 'gauntlet' && isGauntletCrownHeistMapBySpace(space);
+    const okBalloonShell = md && md.gameType === 'balloon_boss' && isBalloonBossMissionShellSpace(space);
+    if (!okGauntletCrown && !okBalloonShell) return reply({ ok: false });
+    const previewRoom = !!(space.previewEditorTest
+      || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+    if (!previewRoom && space.hostId !== socket.id) return reply({ ok: false, error: 'host' });
+    if (!gr.crownRunHeld) return reply({ ok: true, already: true });
+    gr.crownRunHeld = false;
+    if (okGauntletCrown) {
+      ensureGauntletEndsAtIfNeeded(space);
+      emitGauntletSync(sid, space);
+    } else {
+      emitBalloonBossMissionShellGauntletSync(sid, space);
+    }
+    return reply({ ok: true });
+  });
+
+  /** Client ส่งแถว y ของบอททดสอบ (ไม่อยู่ใน peers) เพื่อให้ spawn lane obstacles บนแถวนั้น */
+  socket.on('gauntlet-preview-rows', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') return;
+    if (space.gauntletRun && space.gauntletRun.crownRunHeld) return;
+    const hh = md.height || 15;
+    if (!space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket = new Map();
+    const raw = data && Array.isArray(data.ys) ? data.ys : [];
+    const set = new Set();
+    const cap = Math.min(raw.length, 48);
+    for (let i = 0; i < cap; i++) {
+      const fy = Math.floor(Number(raw[i]));
+      if (Number.isFinite(fy) && fy >= 0 && fy < hh) set.add(fy);
+    }
+    space.gauntletPreviewRowsBySocket.set(socket.id, set);
+  });
+
+  socket.on('quiz-carry-lobby-sync-request', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return;
+    if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') {
+      space.quizCarryLobbyReady = {};
+    }
+    for (const id of space.peers.keys()) {
+      if (space.quizCarryLobbyReady[id] === undefined) space.quizCarryLobbyReady[id] = false;
+    }
+    socket.emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+  });
+
+  socket.on('quiz-carry-lobby-ready', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return;
+    if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') space.quizCarryLobbyReady = {};
+    for (const id of space.peers.keys()) {
+      if (space.quizCarryLobbyReady[id] === undefined) space.quizCarryLobbyReady[id] = false;
+    }
+    space.quizCarryLobbyReady[socket.id] = !!(data && data.ready);
+    io.to(sid).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+  });
+
+  socket.on('quiz-carry-lobby-start', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return reply({ ok: false, error: 'ห้องนี้ไม่ใช่โหมด lobby หยิบมาวาง / พรีวิว' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะโฮสต์กด START' });
+    const rm = space.quizCarryLobbyReady || {};
+    const humanIds = [...space.peers.keys()];
+    const allReady = humanIds.length > 0 && humanIds.every((id) => rm[id]);
+    if (!allReady) return reply({ ok: false, error: 'ยังมีผู้เล่นที่ยังไม่ Ready' });
+    io.to(sid).emit('quiz-carry-lobby-started', {});
+    reply({ ok: true });
+  });
+
+  socket.on('gauntlet-crown-lobby-sync-request', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!isCrownLobbyShellSpace(space)) return;
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') {
+      space.gauntletCrownLobbyReady = {};
+    }
+    for (const id of space.peers.keys()) {
+      if (space.gauntletCrownLobbyReady[id] === undefined) space.gauntletCrownLobbyReady[id] = false;
+    }
+    socket.emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+  });
+
+  socket.on('gauntlet-crown-lobby-ready', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!isCrownLobbyShellSpace(space)) return;
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    for (const id of space.peers.keys()) {
+      if (space.gauntletCrownLobbyReady[id] === undefined) space.gauntletCrownLobbyReady[id] = false;
+    }
+    space.gauntletCrownLobbyReady[socket.id] = !!(data && data.ready);
+    io.to(sid).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+  });
+
+  socket.on('gauntlet-crown-lobby-start', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!isCrownLobbyShellSpace(space)) return reply({ ok: false, error: 'ไม่ใช่แมป crown / Mega Virus ภารกิจ' });
+    const soloRoom = space.peers.size === 1;
+    if (!soloRoom && space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะโฮสต์กด START' });
+    const gr = space.gauntletRun;
+    if (!gr || !gr.crownRunHeld) return reply({ ok: false, error: 'เริ่มแล้ว' });
+    const rm = space.gauntletCrownLobbyReady || {};
+    const humanIds = [...space.peers.keys()];
+    const allReady = humanIds.length > 0 && humanIds.every((id) => rm[id]);
+    if (!allReady) return reply({ ok: false, error: 'ยังมีผู้เล่นที่ยังไม่ Ready' });
+    if (isQuizQuestionMissionShellSpace(space)) {
+      const mdQuiz = maps.get(space.mapId) || space.mapData;
+      if (mdQuiz && mdQuiz.gameType === 'quiz') {
+        clearSpaceQuizTimers(space);
+        startQuizGame(sid, space, mdQuiz);
+      }
+    }
+    io.to(sid).emit('gauntlet-crown-lobby-started', {});
+    reply({ ok: true });
+  });
+
+  socket.on('move', (data) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+        if (md && md.gameType === 'gauntlet') {
+          const out = { id: socket.id, x: p.x, y: p.y, direction: p.direction || 'down', characterId: p.characterId };
+          socket.emit('user-move', out);
+          break;
+        }
+        let nx = data.x;
+        let ny = data.y;
+        const sess = space.quizSession;
+        const mdQuiz = (sess && sess.quizMapMd) || md;
+        if (p && sess && sess.active && mdQuiz && mdQuiz.gameType === 'quiz') {
+          const st = sess.players && sess.players[socket.id];
+          if (st && !st.eliminated) {
+            const tx = Math.floor(Number(nx));
+            const ty = Math.floor(Number(ny));
+            const blockTrue = st.cannotTrue && quizCellOn(mdQuiz.quizTrueArea, tx, ty);
+            const blockFalse = st.cannotFalse && quizCellOn(mdQuiz.quizFalseArea, tx, ty);
+            if (blockTrue || blockFalse) {
+              nx = p.x;
+              ny = p.y;
+            }
+          }
+        }
+        if (p && md && md.gameType === 'quiz_carry' && md.quizCarryHubArea) {
+          const txN = Number(nx);
+          const tyN = Number(ny);
+          if (Number.isFinite(txN) && Number.isFinite(tyN) && quizCarryFootprintOverlapsHubServer(md, txN, tyN)) {
+            nx = p.x;
+            ny = p.y;
+          }
+        }
+        if (p && md && md.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(md)) {
+          const txN = Number(nx);
+          const tyN = Number(ny);
+          if (!Number.isFinite(txN) || !Number.isFinite(tyN)) {
+            nx = p.x;
+            ny = p.y;
+          } else if (!quizBattleFootprintFullyOnPathServer(md, txN, tyN)) {
+            nx = p.x;
+            ny = p.y;
+          }
+          const sn = snapPositionOntoQuizBattlePathServer(md, Number(nx), Number(ny));
+          nx = sn.x;
+          ny = sn.y;
+        }
+        if (p && md && md.gameType === 'space_shooter' && data && data.spaceShooterScore != null) {
+          const ns = Math.floor(Number(data.spaceShooterScore));
+          if (Number.isFinite(ns) && ns >= 0) {
+            const prev = Math.max(0, p.spaceShooterScore | 0);
+            if (ns <= prev + 35) p.spaceShooterScore = Math.max(prev, ns);
+          }
+        }
+        if (p && md && md.gameType === 'balloon_boss' && data) {
+          const bbDefaultBalloons = Math.max(1, Math.min(12, Math.floor(Number(md.balloonBossBalloonsPerPlayer)) || 3));
+          if (data.balloonBossScore != null) {
+            const ns = Math.floor(Number(data.balloonBossScore));
+            if (Number.isFinite(ns) && ns >= 0) {
+              const prev = Math.max(0, p.balloonBossScore | 0);
+              if (ns <= prev + 35) p.balloonBossScore = Math.max(prev, ns);
+            }
+          }
+          if (data.balloonBossBossDmg != null) {
+            const nd = Math.floor(Number(data.balloonBossBossDmg));
+            if (Number.isFinite(nd) && nd >= 0) {
+              const prevD = Math.max(0, p.balloonBossBossDmg | 0);
+              if (nd <= prevD + 8) p.balloonBossBossDmg = Math.max(prevD, nd);
+            }
+          }
+          if (data.balloonBossBalloons != null) {
+            const nb = Math.floor(Number(data.balloonBossBalloons));
+            if (Number.isFinite(nb) && nb >= 0) {
+              const prevB = typeof p.balloonBossBalloons === 'number' && Number.isFinite(p.balloonBossBalloons)
+                ? Math.floor(p.balloonBossBalloons)
+                : bbDefaultBalloons;
+              if (nb <= prevB && nb >= Math.max(0, prevB - 2)) p.balloonBossBalloons = nb;
+            }
+          }
+          if (data.balloonBossEliminated) p.balloonBossEliminated = true;
+        }
+        if (p) {
+          const prevX = Number(p.x);
+          const prevY = Number(p.y);
+          const prevDir = p.direction || 'down';
+          p.x = nx;
+          p.y = ny;
+          p.direction = data.direction || p.direction;
+          const posUnchanged = Math.abs(nx - prevX) < 1e-5 && Math.abs(ny - prevY) < 1e-5 && p.direction === prevDir;
+          if (!posUnchanged) {
+            const out = { id: socket.id, x: nx, y: ny, direction: p.direction, characterId: p.characterId };
+            if (md && md.gameType === 'space_shooter') out.spaceShooterScore = Math.max(0, p.spaceShooterScore | 0);
+            if (md && md.gameType === 'balloon_boss') {
+              const bbDef = Math.max(1, Math.min(12, Math.floor(Number(md.balloonBossBalloonsPerPlayer)) || 3));
+              out.balloonBossScore = Math.max(0, p.balloonBossScore | 0);
+              out.balloonBossBossDmg = Math.max(0, p.balloonBossBossDmg | 0);
+              out.balloonBossBalloons = typeof p.balloonBossBalloons === 'number' && Number.isFinite(p.balloonBossBalloons)
+                ? Math.max(0, Math.floor(p.balloonBossBalloons))
+                : bbDef;
+              out.balloonBossEliminated = !!p.balloonBossEliminated;
+            }
+            if (nx !== data.x || ny !== data.y) socket.emit('user-move', out);
+            socket.to(sid).emit('user-move', out);
+          }
+        }
+        break;
+      }
+    }
+  });
+
+  socket.on('lobby-interact', (data, ack) => {
+    const reply = typeof ack === 'function' ? ack : () => {};
+    const tx = Math.floor(Number(data && data.x));
+    const ty = Math.floor(Number(data && data.y));
+    for (const [sid, space] of spaces) {
+      if (!space.peers.has(socket.id)) continue;
+      const p = space.peers.get(socket.id);
+      const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+      if (!md) return reply({ ok: false, error: 'ไม่มีแผนที่' });
+      const w = md.width || 20;
+      const h = md.height || 15;
+      if (Number.isNaN(tx) || Number.isNaN(ty) || tx < 0 || tx >= w || ty < 0 || ty >= h) {
+        return reply({ ok: false, error: 'จุดไม่ถูกต้อง' });
+      }
+      if (!md.interactive || !md.interactive[ty] || md.interactive[ty][tx] !== 1) {
+        return reply({ ok: false, error: 'ไม่มีจุดโต้ตอบที่นี่' });
+      }
+      const px = Math.floor(Number(p.x));
+      const py = Math.floor(Number(p.y));
+      const neighbors = [[0, 0], [0, -1], [0, 1], [-1, 0], [1, 0]];
+      let near = false;
+      for (const [dx, dy] of neighbors) {
+        if (px + dx === tx && py + dy === ty) { near = true; break; }
+      }
+      if (!near) return reply({ ok: false, error: 'เข้าใกล้จุดสีเขียว (ช่องโต้ตอบ) ก่อน' });
+      if (!p.ready) return reply({ ok: false, error: 'กดพร้อมก่อน แล้วค่อยกด F ที่ช่องสีเขียว' });
+      const nick = (p.nickname || '').trim() || 'ผู้เล่น';
+      io.to(sid).emit('lobby-interact', { id: socket.id, nickname: nick, x: tx, y: ty });
+      return reply({ ok: true });
+    }
+    reply({ ok: false, error: 'ไม่ได้อยู่ในห้อง' });
+  });
+
+  socket.on('chat', (text) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        const nick = space.peers.get(socket.id)?.nickname || '';
+        io.to(sid).emit('chat', { id: socket.id, text, time: new Date(), nickname: nick });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-state', ({ micOn }) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        if (p) p.voiceMicOn = micOn !== false;
+        if (micOn === false && space.voiceInits) delete space.voiceInits[socket.id];
+        io.to(sid).emit('peer-voice-state', { id: socket.id, micOn: micOn !== false });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-activity', ({ level }) => {
+    const sid = socket.data.spaceId;
+    if (!sid || !spaces.get(sid)) return;
+    const until = Date.now() + 400;
+    io.to(sid).emit('peer-speaking', { id: socket.id, level: typeof level === 'number' ? level : 0.5, until });
+  });
+
+  socket.on('voice-init', (data) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        if (!space.voiceInits) space.voiceInits = {};
+        space.voiceInits[socket.id] = data;
+        io.to(sid).emit('voice-init', { from: socket.id, data });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-chunk', (data) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        socket.to(sid).emit('voice-chunk', { from: socket.id, data });
+        break;
+      }
+    }
+  });
+
+  socket.on('webrtc-signal', (data) => {
+    const { to, type, sdp, candidate } = data;
+    if (!to) return;
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid) && space.peers.has(to)) {
+        io.to(to).emit('webrtc-signal', { from: socket.id, type, sdp, candidate });
+        break;
+      }
+    }
+  });
+});
+
+loadMaps();
+server.on('error', (err) => {
+  if (err && (err.code === 'EACCES' || err.code === 'EADDRINUSE')) {
+    console.error('');
+    console.error('[Game] Cannot listen on', HOST + ':' + PORT, '(' + err.code + ').');
+    console.error('  Windows AppServ:');
+    console.error('    set HOST=127.0.0.1');
+    console.error('    set PORT=13010');
+    console.error('    node server.js');
+    console.error('  Or double-click start-dev.cmd');
+    console.error('');
+    process.exit(1);
+  }
+  throw err;
+});
+server.listen(PORT, HOST, () => console.log('Game server listening on http://' + HOST + ':' + PORT + BASE_PATH));
\ No newline at end of file
diff --git a/www/html/Game/server.js.bak-20260605-060328 b/www/html/Game/server.js.bak-20260605-060328
new file mode 100644
index 0000000..fb88f11
--- /dev/null
+++ b/www/html/Game/server.js.bak-20260605-060328
@@ -0,0 +1,7449 @@
+const http = require('http');
+const path = require('path');
+const fs = require('fs');
+const crypto = require('crypto');
+const { Server } = require('socket.io');
+
+const PORT = parseInt(process.env.PORT, 10) || 3001;
+/** Windows dev: bind 127.0.0.1 (0.0.0.0 มัก EACCES ถ้าพอร์ตอยู่ใน excluded range ของ Hyper-V) */
+const HOST = process.env.HOST || process.env.GAME_HOST || '0.0.0.0';
+const BASE_PATH = '/Game';
+const AI_SETTINGS_PATH = path.join(__dirname, 'data', 'ai-settings.json');
+const ADMIN_PASSWORD = process.env.GAME_AI_ADMIN_PASSWORD || 'game-ai-admin';
+const adminTokens = new Set();
+/** Lobby หลังคดี — ไม่ลบออกจาก spaces ตอน prune รายการห้องว่าง */
+const POST_CASE_LOBBY_SPACE_ID = 'mn8nx46h';
+/** หลัง host เลือกผู้ต้องสงสัยแล้วกด «เริ่มสืบสวน» — ฉากควิซเดิม (fallback) */
+const SUSPECT_INVESTIGATION_QUIZ_MAP_ID = 'mng8a80o';
+/** 7 Minigame จาก Admin — สุ่ม 3 แบบไม่ซ้ำผูกการ์ดผู้ต้องสงสัย (ล็อกจนกว่าสร้างห้องใหม่) */
+/** ตรงแท็บ Admin Minigame 1–7 (ไม่รวม Quiz Battle / กบ frogger เก่า) */
+const DETECTIVE_MINIGAME_POOL = [
+  { key: 'quiz', mapId: 'mng8a80o', labelTh: 'Minigame-1 จริงหรือไม่' },
+  { key: 'gauntlet', mapId: 'mno9kb07', labelTh: 'Minigame-2 วิ่งหลบสิ่งกีดขวาง' },
+  { key: 'stack', mapId: 'mnn93hpi', labelTh: 'Minigame-3 Tower block' },
+  { key: 'quiz_carry', mapId: 'mnorwqx1', labelTh: 'Minigame-4 คำศัพท์ในกระบวนการยุติธรรม' },
+  { key: 'jump_survive', mapId: 'mnptfts2', labelTh: 'Minigame-5 กระโดดขึ้นแท่น' },
+  { key: 'space_shooter', mapId: 'mnpz6rkp', labelTh: 'Minigame-6 ยิงอุกาบาต Violent Crime' },
+  { key: 'balloon_boss', mapId: 'mnq1eml7', labelTh: 'Minigame-7 ยิง Mega Virus' },
+];
+const LOBBY_SLOT_TOTAL = 6;
+const LOBBY_THEME_COUNT = 8;
+const LOBBY_SKIN_COUNT = 3;
+
+/** ธีมสีเสื้อที่ถูกใช้แล้วในห้อง (ผู้เล่น + bot) */
+function getTakenLobbyThemeIndices(space, excludePeerId) {
+  const taken = new Set();
+  if (!space) return taken;
+  space.peers.forEach((p, id) => {
+    if (excludePeerId && id === excludePeerId) return;
+    const ti = parseInt(p.lobbyColorThemeIndex, 10);
+    if (ti >= 1 && ti <= LOBBY_THEME_COUNT) taken.add(ti);
+  });
+  const bots = space.lobbyBotThemeBySlot;
+  if (bots && typeof bots === 'object') {
+    Object.keys(bots).forEach((k) => {
+      const ti = parseInt(bots[k] && bots[k].themeIndex, 10);
+      if (ti >= 1 && ti <= LOBBY_THEME_COUNT) taken.add(ti);
+    });
+  }
+  return taken;
+}
+
+function pickFreeLobbyThemeIndex(space, excludePeerId) {
+  const taken = getTakenLobbyThemeIndices(space, excludePeerId);
+  for (let i = 1; i <= LOBBY_THEME_COUNT; i++) {
+    if (!taken.has(i)) return i;
+  }
+  const n = (space && space.peers ? space.peers.size : 0) + effectiveBotSlotCount(space);
+  return ((n - 1) % LOBBY_THEME_COUNT) + 1;
+}
+
+function pickLobbySkinIndexForSlot(slotIndex) {
+  const s = Number(slotIndex);
+  if (!Number.isFinite(s)) return 1;
+  return (Math.abs(Math.floor(s)) % LOBBY_SKIN_COUNT) + 1;
+}
+
+/** จัดสี bot ตามลำดับช่อง — ไม่ซ้ำกับผู้เล่น */
+function syncLobbyBotThemeSlots(space) {
+  if (!space) return [];
+  const botCount = effectiveBotSlotCount(space);
+  if (!space.lobbyBotThemeBySlot || typeof space.lobbyBotThemeBySlot !== 'object') {
+    space.lobbyBotThemeBySlot = {};
+  }
+  const taken = getTakenLobbyThemeIndices(space);
+  const out = [];
+  for (let i = 0; i < botCount; i++) {
+    let slot = space.lobbyBotThemeBySlot[i];
+    let themeIndex = parseInt(slot && slot.themeIndex, 10);
+    if (!(themeIndex >= 1 && themeIndex <= LOBBY_THEME_COUNT) || taken.has(themeIndex)) {
+      themeIndex = pickFreeLobbyThemeIndex(space);
+    }
+    taken.add(themeIndex);
+    const skinToneIndex = (() => {
+      const si = parseInt(slot && slot.skinToneIndex, 10);
+      return (si >= 1 && si <= LOBBY_SKIN_COUNT) ? si : pickLobbySkinIndexForSlot(i);
+    })();
+    space.lobbyBotThemeBySlot[i] = { themeIndex, skinToneIndex };
+    out.push({ themeIndex, skinToneIndex });
+  }
+  Object.keys(space.lobbyBotThemeBySlot).forEach((k) => {
+    if (parseInt(k, 10) >= botCount) delete space.lobbyBotThemeBySlot[k];
+  });
+  return out;
+}
+
+function emitLobbyTintSync(spaceId, space) {
+  const peersTint = [];
+  space.peers.forEach((p, id) => {
+    peersTint.push({
+      id,
+      lobbyColorThemeIndex: p.lobbyColorThemeIndex || null,
+      lobbySkinToneIndex: p.lobbySkinToneIndex || null,
+    });
+  });
+  io.to(spaceId).emit('lobby-tint-sync', {
+    peers: peersTint,
+    lobbyBotThemes: syncLobbyBotThemeSlots(space),
+  });
+}
+
+/** จำนวน Bot จาก Create Room — ถ้าไม่เคยบันทึก ใช้ 6 − maxPlayers (เช่น 3 คน → 3 Bot) */
+function effectiveBotSlotCount(space) {
+  let n = parseInt(space && space.botSlotCount, 10);
+  if (isNaN(n) || n < 0) n = 0;
+  const maxP = space && space.maxPlayers ? parseInt(space.maxPlayers, 10) : 0;
+  if (n === 0 && maxP > 0 && maxP < LOBBY_SLOT_TOTAL) {
+    n = LOBBY_SLOT_TOTAL - maxP;
+    if (space) space.botSlotCount = n;
+  }
+  return Math.min(LOBBY_SLOT_TOTAL, Math.max(0, n));
+}
+/** Stack Tower ภารกิจ — lobby READY / START เดียวกับ quiz mission (mng8a80o) */
+const STACK_TOWER_MISSION_MAP_ID = 'mnn93hpi';
+/** Jump Survival ภารกิจ Jumper — lobby READY / START เดียวกับ Stack Tower */
+const JUMP_SURVIVE_MISSION_MAP_ID = 'mnptfts2';
+/** ห้องสาธารณะที่สร้างแล้วไม่มีคนเข้าเกินนี้ → ลบออกจาก memory (Join Room ไม่โชว์ห้องผี) */
+const SPACE_EMPTY_TTL_MS = 45000;
+// Chat completion models from https://developers.openai.com/api/docs/models (Feb 2025)
+const AI_MODELS = [
+  'gpt-5.2', 'gpt-5.2-pro', 'gpt-5.1', 'gpt-5', 'gpt-5-pro', 'gpt-5-mini', 'gpt-5-nano',
+  'gpt-4.1', 'gpt-4.1-mini', 'gpt-4.1-nano',
+  'o3', 'o3-mini', 'o3-pro', 'o4-mini', 'o3-deep-research', 'o4-mini-deep-research',
+  'o1', 'o1-mini', 'o1-pro',
+  'gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-4',
+  'gpt-3.5-turbo',
+];
+
+function loadAiSettings() {
+  try {
+    if (fs.existsSync(AI_SETTINGS_PATH)) {
+      const raw = fs.readFileSync(AI_SETTINGS_PATH, 'utf8');
+      return JSON.parse(raw);
+    }
+  } catch (e) { console.error('loadAiSettings', e.message); }
+  return { openai_api_key: '', model: 'gpt-4o-mini', intent: '', rag_enabled: false, rag_context: '' };
+}
+
+function saveAiSettings(settings) {
+  try {
+    const dir = path.dirname(AI_SETTINGS_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    fs.writeFileSync(AI_SETTINGS_PATH, JSON.stringify(settings, null, 2), 'utf8');
+  } catch (e) { console.error('saveAiSettings', e.message); }
+}
+
+function getAdminToken(cookieHeader) {
+  if (!cookieHeader) return null;
+  const m = cookieHeader.match(/game_ai_admin=([^;\s]+)/);
+  return m && adminTokens.has(m[1]) ? m[1] : null;
+}
+
+const MAPS_DIR = path.join(__dirname, 'data', 'maps');
+const CHARACTERS_DIR = path.join(__dirname, 'data', 'characters');
+/** ชื่อเลเยอร์ตรงกับ character.html / อัปโหลด (ลำดับวาดใน client) */
+const CHAR_LAYER_MANIFEST_KEYS = ['shadow', 'bodyColor', 'bodyStroke', 'headColor', 'headStroke', 'hairColor', 'hairStroke', 'face'];
+const CHAR_MANIFEST_DIRS = ['up', 'down', 'left', 'right'];
+
+/** รายการไฟล์เลเยอร์ต่อทิศ/เฟรม — ให้หน้า character แก้ไขโหลด preview ได้ */
+function buildCharacterLayerManifest(id, files) {
+  if (!id || typeof id !== 'string') return { ok: false, error: 'bad id', byDir: {}, byDirIdle: {} };
+  const esc = id.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
+  const ext = /\.(png|jpg|jpeg|gif|webp)$/i;
+  const layerAlt = CHAR_LAYER_MANIFEST_KEYS.join('|');
+  const byDir = {};
+  for (const dir of CHAR_MANIFEST_DIRS) {
+    const multiRe = new RegExp('^' + esc + '_' + dir + '_(\\d+)_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const singleRe = new RegExp('^' + esc + '_' + dir + '_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const multiHits = files.filter((f) => multiRe.test(f));
+    if (multiHits.length) {
+      let maxFi = -1;
+      const perFrame = new Map();
+      multiHits.forEach((f) => {
+        const m = f.match(multiRe);
+        if (!m) return;
+        const fi = parseInt(m[1], 10);
+        if (!Number.isFinite(fi) || fi < 0 || fi > 200) return;
+        const layer = m[2];
+        if (fi > maxFi) maxFi = fi;
+        if (!perFrame.has(fi)) perFrame.set(fi, {});
+        perFrame.get(fi)[layer] = f;
+      });
+      const frames = [];
+      for (let i = 0; i <= maxFi; i++) frames.push(perFrame.get(i) || {});
+      byDir[dir] = { multi: true, frames };
+    } else {
+      const frame0 = {};
+      files.forEach((f) => {
+        if (!f.startsWith(id + '_' + dir + '_layer_') || !ext.test(f)) return;
+        const m = f.match(singleRe);
+        if (m) frame0[m[1]] = f;
+      });
+      if (Object.keys(frame0).length) byDir[dir] = { multi: false, frames: [frame0] };
+    }
+  }
+  const byDirIdle = {};
+  for (const dir of CHAR_MANIFEST_DIRS) {
+    const multiIdleRe = new RegExp('^' + esc + '_' + dir + '_idle_(\\d+)_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const singleIdleRe = new RegExp('^' + esc + '_' + dir + '_idle_layer_(' + layerAlt + ')\\.(png|jpg|jpeg|gif|webp)$', 'i');
+    const multiIdleHits = files.filter((f) => multiIdleRe.test(f));
+    if (multiIdleHits.length) {
+      let maxFi = -1;
+      const perFrame = new Map();
+      multiIdleHits.forEach((f) => {
+        const m = f.match(multiIdleRe);
+        if (!m) return;
+        const fi = parseInt(m[1], 10);
+        if (!Number.isFinite(fi) || fi < 0 || fi > 200) return;
+        const layer = m[2];
+        if (fi > maxFi) maxFi = fi;
+        if (!perFrame.has(fi)) perFrame.set(fi, {});
+        perFrame.get(fi)[layer] = f;
+      });
+      const frames = [];
+      for (let i = 0; i <= maxFi; i++) frames.push(perFrame.get(i) || {});
+      byDirIdle[dir] = { multi: true, frames };
+    } else {
+      const frame0 = {};
+      files.forEach((f) => {
+        if (!f.startsWith(id + '_' + dir + '_idle_layer_') || !ext.test(f)) return;
+        const m = f.match(singleIdleRe);
+        if (m) frame0[m[1]] = f;
+      });
+      if (Object.keys(frame0).length) byDirIdle[dir] = { multi: false, frames: [frame0] };
+    }
+  }
+  return { ok: true, id, byDir, byDirIdle };
+}
+
+/** ต้องอยู่ใต้ public/img/ เพื่อให้ nginx (alias /Game/ → Game/public) เสิร์ฟ GET /Game/img/gauntlet-assets/* ได้ — เดิมเก็บใน data/ จะถูกคัดลอกมาครั้งแรก */
+const GAUNTLET_ASSETS_DIR = path.join(__dirname, 'public', 'img', 'gauntlet-assets');
+const GAUNTLET_ASSETS_DIR_LEGACY = path.join(__dirname, 'data', 'gauntlet-assets');
+const GAUNTLET_ASSETS_META_PATH = path.join(__dirname, 'data', 'gauntlet-assets-meta.json');
+/** ต้องอยู่ใต้ public/ เพื่อให้ nginx (alias /Game/ → Game/public) เสิร์ฟรูปได้ — อย่าใช้ data/ */
+const QUIZ_CARRY_PLAQUE_ASSETS_DIR = path.join(__dirname, 'public', 'img', 'quiz-carry-plaque-assets');
+const QUIZ_SETTINGS_PATH = path.join(__dirname, 'data', 'quiz-settings.json');
+/** ถ้า Admin (PHP) merge ลงไฟล์ใต้ docroot แต่ Node รันจากโฟลเดอร์อื่น ให้ตั้ง absolute path ที่นี่ — carry* / ธีมแผงจะอ่านทับจาก mirror ทุกครั้งที่ loadQuizSettings */
+const QUIZ_SETTINGS_MIRROR_PATH = process.env.GAME_QUIZ_SETTINGS_MIRROR_PATH
+  ? path.resolve(String(process.env.GAME_QUIZ_SETTINGS_MIRROR_PATH).trim())
+  : '';
+const GAME_TIMING_PATH = path.join(__dirname, 'data', 'game-timing.json');
+/** ช่องตัวเลือกบนกริด quiz_carry เก็บเลข 1..N (ไม่ใช่แค่ 0/1 เหมือน hub) */
+const QUIZ_CARRY_MAX_OPTION_SLOTS = 16;
+const maps = new Map();
+const defaultMap = () => ({
+  width: 20, height: 15, tileSize: 32, gameType: 'zep',
+  characterCells: 1, characterCellsW: 1, characterCellsH: 1,
+  /** กล่องตรวจทับโซน «ห้ามซ้อน» (ชิดเท้า+กลางแนวนอน เหมือนชนกำแพง) · 0 = เต็มความกว้าง/สูงตัว */
+  blockPlayerSeparationW: 0,
+  blockPlayerSeparationH: 0,
+  ground: [], objects: [], blockPlayer: [], interactive: [], startGameArea: [], spawnArea: [], spawn: { x: 1, y: 1 },
+  gridImageLibrary: [],
+  gridImageSprites: [],
+  gridImageCells: [],
+  quizTrueArea: [], quizFalseArea: [], quizQuestionArea: [], quizQuestions: [],
+  quizCarryHubArea: [], quizCarryOptionArea: [],
+  /** quiz_carry embed: โซนวาง UI นับ 3-2-1 (0/1) — ใช้เมื่อ carryEmbedCountdownAnchor === 'grid' */
+  carryEmbedCountdownArea: [],
+  /** Quiz Battle (MCQ โดม) — ช่องที่ 1 = จุดกด E เปิดคำถามจาก battleQuizMcq */
+  quizBattleDomeArea: [],
+  /** Quiz Battle — ถ้าวาดอย่างน้อย 1 ช่อง = จำกัดเดินเฉพาะเส้นทาง (เหมือนแผนที่อ้างอิง) · ไม่วาด = เดินอิสระเหมือนเดิม */
+  quizBattlePathArea: [],
+  stackReleaseArea: [], stackLandArea: [],
+  /** กระโดดให้รอด — แพลตฟอร์มในระบบ tile (ร่างสำหรับ side-view ภายหลัง) */
+  jumpSurvivePlatforms: [],
+  jumpSurvivePlatformArea: [],
+  /** กริดช่องละ 0 หรือ 1–3 = รูปแพลตฟอร์มจาก jumpSurvivePlatformTiles[index-1] */
+  jumpSurvivePlatformVariantArea: [],
+  jumpSurviveHazardArea: [],
+  jumpSurviveRisePxPerSec: 42,
+  jumpSurviveGravity: 3200,
+  /** 0 = ให้ไคลเอนต์ใช้ค่าเริ่มต้นกระโดดสูง; ตั้งเป็นพิกเซล/วิ (เช่น 980) เพื่อกำหนดเอง */
+  jumpSurviveJumpImpulse: 0,
+  jumpSurviveMovePxPerSec: 200,
+});
+
+/* ===== Special Quiz Sets (Level 1-5 × Case 1-3 = 15 ชุด) — คำถามรับการ์ดพิเศษ ใช้ได้หลายเกม ===== */
+const SPECIAL_QUIZ_LEVELS = [1, 2, 3, 4, 5];
+const SPECIAL_QUIZ_CASES = [1, 2, 3];
+const SPECIAL_QUIZ_CARD_RARITIES = ['common', 'rare', 'legendary'];
+const SPECIAL_CARD_ASSET_BASE = '/Game/img/special-cards/';
+
+function specialCardTxtFilename(id) {
+  return id === 7 ? 'card--7txt.png' : `card-${id}-txt.png`;
+}
+
+function specialCardImageUrl(id) {
+  return `${SPECIAL_CARD_ASSET_BASE}card-${id}.png`;
+}
+
+function specialCardTxtImageUrl(id) {
+  return `${SPECIAL_CARD_ASSET_BASE}${specialCardTxtFilename(id)}`;
+}
+
+function specialQuizSetKey(level, caseId) {
+  return 'L' + level + '_C' + caseId;
+}
+
+/** คำถาม 1 ข้อ — รองรับทั้งจริง/เท็จ (tf) และตัวเลือก A/B/C (mcq) เพื่อขยายภายหลัง */
+function sanitizeSpecialQuizQuestion(q) {
+  if (!q || typeof q !== 'object') return null;
+  const text = String(q.text == null ? '' : q.text).trim();
+  if (!text) return null;
+  const type = q.type === 'mcq' ? 'mcq' : 'tf';
+  if (type === 'mcq') {
+    /* รักษาตำแหน่งตัวเลือก (A=0,B=1,...) — ตัดเฉพาะช่องว่างท้ายสุด ไม่ขยับ index คำตอบ */
+    const choices = (Array.isArray(q.choices) ? q.choices : [])
+      .map((c) => String(c == null ? '' : c).trim())
+      .slice(0, 8);
+    while (choices.length && choices[choices.length - 1] === '') choices.pop();
+    if (choices.filter((c) => c).length < 2) return null;
+    let ci = Number(q.correctIndex);
+    if (!Number.isInteger(ci) || ci < 0 || ci >= choices.length || choices[ci] === '') {
+      ci = choices.findIndex((c) => c);
+      if (ci < 0) ci = 0;
+    }
+    return { type: 'mcq', text: text.slice(0, 500), choices, correctIndex: ci };
+  }
+  return { type: 'tf', text: text.slice(0, 500), answerTrue: !!q.answerTrue };
+}
+
+function sanitizeSpecialCard(c) {
+  const src = (c && typeof c === 'object') ? c : {};
+  const rarity = SPECIAL_QUIZ_CARD_RARITIES.indexOf(src.rarity) >= 0 ? src.rarity : 'rare';
+  let cardId = Number(src.cardId);
+  if (!(cardId >= 1 && cardId <= 7)) cardId = null;
+  let imageUrl = String(src.imageUrl == null ? '' : src.imageUrl).trim().slice(0, 600);
+  let txtImageUrl = String(src.txtImageUrl == null ? '' : src.txtImageUrl).trim().slice(0, 600);
+  if (cardId) {
+    if (!imageUrl) imageUrl = specialCardImageUrl(cardId);
+    if (!txtImageUrl) txtImageUrl = specialCardTxtImageUrl(cardId);
+  } else if (imageUrl) {
+    const m = imageUrl.match(/\/card-(\d)\.png/i);
+    if (m) {
+      cardId = Number(m[1]);
+      imageUrl = specialCardImageUrl(cardId);
+      if (!txtImageUrl) txtImageUrl = specialCardTxtImageUrl(cardId);
+    }
+  }
+  return {
+    cardId: cardId || null,
+    th: String(src.th == null ? '' : src.th).trim().slice(0, 160),
+    en: String(src.en == null ? '' : src.en).trim().slice(0, 160),
+    rarity,
+    imageUrl,
+    txtImageUrl,
+  };
+}
+
+/** คืน object 15 ชุดเสมอ (ชุดที่ยังไม่ตั้ง = ว่าง) */
+function sanitizeSpecialQuizSets(obj) {
+  const out = {};
+  SPECIAL_QUIZ_LEVELS.forEach((L) => SPECIAL_QUIZ_CASES.forEach((C) => {
+    const key = specialQuizSetKey(L, C);
+    const src = (obj && typeof obj === 'object' && obj[key] && typeof obj[key] === 'object') ? obj[key] : {};
+    const questions = (Array.isArray(src.questions) ? src.questions : [])
+      .map(sanitizeSpecialQuizQuestion)
+      .filter(Boolean)
+      .slice(0, 50);
+    out[key] = { questions, specialCard: sanitizeSpecialCard(src.specialCard) };
+  }));
+  return out;
+}
+
+/** เลือกชุดคำถามตาม level+case (fallback ชุด L1_C1) */
+function getSpecialQuizSet(settings, level, caseId) {
+  const sets = (settings && settings.specialQuizSets) || sanitizeSpecialQuizSets({});
+  const L = SPECIAL_QUIZ_LEVELS.indexOf(Number(level)) >= 0 ? Number(level) : 1;
+  /* caseId เป็นเลขคดีรวม 1-15 (5 ระดับ × 3 คดี) → แปลงเป็นคดีสัมพัทธ์ในระดับ 1-3 */
+  const rel = ((Math.max(1, Number(caseId) || 1) - 1) % 3) + 1;
+  const C = SPECIAL_QUIZ_CASES.indexOf(rel) >= 0 ? rel : 1;
+  return sets[specialQuizSetKey(L, C)] || sets[specialQuizSetKey(1, 1)] || { questions: [], specialCard: sanitizeSpecialCard({}) };
+}
+
+/* ===== Special Quiz ในเกม — ไอคอนสุ่มในฉาก + เซสชันถาม-ตอบ multiplayer (ทุกคนต้องตอบถูก) ===== */
+/** เฉพาะ 4 มินิเกมนี้ (ตอนสืบสวน) ที่ไอคอนพิเศษจะสุ่มโผล่ */
+const SPECIAL_QUIZ_ELIGIBLE_MAP_IDS = ['mng8a80o', 'mnorwqx1', 'mnptfts2', 'mnpz6rkp'];
+const SPECIAL_QUIZ_ICON_TYPES = ['lawyer', 'police'];
+/** โอกาสโผล่ = 1 ใน 3 ของการเล่นแต่ละรอบ */
+const SPECIAL_QUIZ_SPAWN_CHANCE = 1 / 3;
+/** เวลาให้ตอบต่อข้อ (มิลลิวิ) — ค่าคงที่เริ่มต้น (ย้ายไป Admin ได้ภายหลัง) */
+const SPECIAL_QUIZ_ANSWER_MS = 20000;
+/** หน่วงโชว์เฉลยก่อนข้อต่อไป */
+const SPECIAL_QUIZ_REVEAL_MS = 2600;
+
+/** แปลงคำถาม 1 ข้อให้อยู่ในรูป {text, choices[], correctIndex} เสมอ (tf -> จริง/เท็จ) */
+function specialQuizNormalizeQuestion(q) {
+  if (!q || typeof q !== 'object') return null;
+  const text = String(q.text == null ? '' : q.text).trim();
+  if (!text) return null;
+  if (q.type === 'mcq') {
+    const choices = (Array.isArray(q.choices) ? q.choices : []).map((c) => String(c == null ? '' : c)).filter((c) => c.trim() !== '');
+    if (choices.length < 2) return null;
+    let ci = Number(q.correctIndex);
+    if (!Number.isInteger(ci) || ci < 0 || ci >= choices.length) ci = 0;
+    return { text, choices, correctIndex: ci };
+  }
+  return { text, choices: ['จริง', 'เท็จ'], correctIndex: q.answerTrue ? 0 : 1 };
+}
+
+function specialQuizShuffle(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+function specialQuizTileWalkable(md, x, y) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  if (x < 0 || x >= w || y < 0 || y >= h) return false;
+  const row = md.objects && md.objects[y];
+  return !!(row && row[x] !== 1);
+}
+
+/** หลีกเลี่ยงโซน gameplay (คำตอบจริง/ผิด, hub, ตัวเลือกหยิบมาวาง) เพื่อไม่ชนกลไกเกม */
+function specialQuizTileInGameZone(md, x, y) {
+  if (quizCellOn(md.quizTrueArea || [], x, y)) return true;
+  if (quizCellOn(md.quizFalseArea || [], x, y)) return true;
+  if (quizCellOn(md.quizCarryHubArea || [], x, y)) return true;
+  const oa = md.quizCarryOptionArea;
+  if (oa && oa[y] && oa[y][x]) return true;
+  return false;
+}
+
+/** หา tile ที่เดินถึงได้ (BFS) และไม่อยู่ในโซน gameplay — คืนพิกัดกึ่งกลาง tile */
+function pickSpecialQuizSpawnTile(md) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  /* seed BFS จากพื้นที่ที่ผู้เล่นเกิดจริง (spawnArea) เพื่อรับประกันว่าไอคอนเดินไปถึงได้
+     fallback: md.spawn (ถ้าเดินได้) แล้วค่อยสแกนหา walkable tile แรก */
+  let sx = -1;
+  let sy = -1;
+  const spawnGrid = md.spawnArea;
+  if (Array.isArray(spawnGrid)) {
+    for (let y = 0; y < h && sx < 0; y++) {
+      const row = spawnGrid[y];
+      if (!row) continue;
+      for (let x = 0; x < w; x++) {
+        if (Number(row[x]) === 1 && specialQuizTileWalkable(md, x, y)) { sx = x; sy = y; break; }
+      }
+    }
+  }
+  if (sx < 0) {
+    const sp = md.spawn || { x: 1, y: 1 };
+    const fx = Math.floor(Number(sp.x));
+    const fy = Math.floor(Number(sp.y));
+    if (specialQuizTileWalkable(md, fx, fy)) { sx = fx; sy = fy; }
+  }
+  if (sx < 0) {
+    for (let y = 0; y < h && sx < 0; y++) {
+      for (let x = 0; x < w; x++) {
+        if (specialQuizTileWalkable(md, x, y)) { sx = x; sy = y; break; }
+      }
+    }
+  }
+  if (sx < 0) return null;
+  const q = [[sx, sy]];
+  const seen = new Set([sx + ',' + sy]);
+  const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+  const cands = [];
+  while (q.length) {
+    const [cx, cy] = q.shift();
+    for (let di = 0; di < dirs.length; di++) {
+      const nx = cx + dirs[di][0];
+      const ny = cy + dirs[di][1];
+      const k = nx + ',' + ny;
+      if (seen.has(k)) continue;
+      if (!specialQuizTileWalkable(md, nx, ny)) continue;
+      seen.add(k);
+      q.push([nx, ny]);
+      if (!specialQuizTileInGameZone(md, nx, ny)) {
+        const dist = Math.abs(nx - sx) + Math.abs(ny - sy);
+        if (dist >= 2) cands.push({ x: nx, y: ny });
+      }
+    }
+  }
+  if (!cands.length) return null;
+  const pick = cands[Math.floor(Math.random() * cands.length)];
+  return { x: pick.x + 0.5, y: pick.y + 0.5 };
+}
+
+function clearSpecialQuizTimers(space) {
+  if (Array.isArray(space.specialQuizTimers)) {
+    space.specialQuizTimers.forEach((t) => clearTimeout(t));
+  }
+  space.specialQuizTimers = [];
+  if (space.specialQuizContinueTimer) {
+    clearTimeout(space.specialQuizContinueTimer);
+    space.specialQuizContinueTimer = null;
+  }
+  space.specialQuizAwaitContinue = false;
+}
+
+/** payload ไอคอนสำหรับ client (null = ไม่มี/ถูกทริกแล้ว) */
+function specialQuizIconPayload(space) {
+  const sq = space && space.specialQuiz;
+  if (!sq || sq.triggered || sq.done) return null;
+  return { iconType: sq.iconType, x: sq.x, y: sq.y };
+}
+
+/** เริ่มมินิเกมสืบสวน: สุ่ม 1/3 ว่ารอบนี้จะมีไอคอนพิเศษไหม + เลือกตำแหน่ง */
+function maybeSpawnSpecialQuizForRun(space) {
+  clearSpecialQuizTimers(space);
+  space.specialQuiz = null;
+  space.specialCardAwardedThisRun = null;
+  space.timeDilationPendingSec = 0;
+  /* หมายเหตุ: ไม่ล้าง pendingSpecialCard ที่นี่ — การ์ดที่ใช้ใน trial/lobby ต้องคงอยู่จนกว่าจะถูกใช้
+     หรือถูกแทนด้วยการ์ดใบใหม่ (endSpecialQuizSession เขียนทับเมื่อได้ใบใหม่) */
+  if (!space || !space.detectiveMinigameActive) return;
+  const mapId = String(space.mapId || '').trim();
+  if (SPECIAL_QUIZ_ELIGIBLE_MAP_IDS.indexOf(mapId) < 0) return;
+  const level = Number(space.detectiveLobbyLevel) || 1;
+  const caseId = Number(space.detectiveLobbyCaseId) || 1;
+  const settings = loadQuizSettings();
+  const set = getSpecialQuizSet(settings, level, caseId);
+  const questions = (set && Array.isArray(set.questions) ? set.questions : [])
+    .map(specialQuizNormalizeQuestion)
+    .filter(Boolean);
+  const card = set && set.specialCard;
+  const hasCard = !!(card && (card.cardId || card.imageUrl));
+  if (!questions.length || !hasCard) { console.log('[special-quiz] skip:no-questions-or-card', mapId, 'L' + level + '_C' + caseId, 'q=' + questions.length, 'card=' + hasCard); return; }
+  const forced = !!space.forceSpecialQuiz;
+  const roll = Math.random();
+  if (!forced && roll > SPECIAL_QUIZ_SPAWN_CHANCE) { console.log('[special-quiz] skip:roll', mapId, roll.toFixed(3), '>', SPECIAL_QUIZ_SPAWN_CHANCE.toFixed(3)); return; }
+  if (forced) console.log('[special-quiz] FORCE-spawn (debug)', mapId);
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md) { console.log('[special-quiz] skip:no-map', mapId); return; }
+  const tile = pickSpecialQuizSpawnTile(md);
+  if (!tile) { console.log('[special-quiz] skip:no-tile', mapId); return; }
+  const iconType = SPECIAL_QUIZ_ICON_TYPES[Math.floor(Math.random() * SPECIAL_QUIZ_ICON_TYPES.length)];
+  console.log('[special-quiz] SPAWN', mapId, 'L' + level + '_C' + caseId, iconType, 'tile', tile.x, tile.y);
+  space.specialQuiz = {
+    iconType,
+    x: tile.x,
+    y: tile.y,
+    level,
+    caseId,
+    card,
+    triggered: false,
+    done: false,
+    session: null,
+  };
+}
+
+function emitSpecialQuizIcon(sid, space) {
+  const payload = specialQuizIconPayload(space);
+  if (payload) io.to(sid).emit('special-quiz-icon', payload);
+}
+
+/** roster ของเซสชัน: ผู้เล่นจริง + บอทเติมช่อง (บอทตอบถูกเสมอ) — โชว์ในแผง "ใครตอบอะไร" */
+function buildSpecialQuizRoster(space) {
+  const roster = [];
+  space.peers.forEach((p, id) => {
+    roster.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isBot: false });
+  });
+  const botN = effectiveBotSlotCount(space);
+  for (let i = 0; i < botN; i++) {
+    roster.push({ id: 'sqbot-' + i, nickname: 'บอท ' + (i + 1), isBot: true });
+  }
+  return roster;
+}
+
+function specialQuizRosterPayload(sess) {
+  return (sess && Array.isArray(sess.roster) ? sess.roster : [])
+    .map((m) => ({ id: m.id, nickname: m.nickname, isBot: !!m.isBot }));
+}
+
+/** id ที่ต้องตอบในข้อนี้ = ผู้เล่นจริงที่ยังอยู่ + บอททุกตัวใน roster (ใช้ตัดสิน "ทุกคนตอบถูก") */
+function specialQuizExpectedIds(space, sess) {
+  const realAlive = new Set(space.peers.keys());
+  const out = [];
+  (sess && Array.isArray(sess.roster) ? sess.roster : []).forEach((m) => {
+    if (m.isBot) out.push(m.id);
+    else if (realAlive.has(m.id)) out.push(m.id);
+  });
+  return out;
+}
+
+/** ตอบครบทุกคน (จริง+บอท) แล้วตัดสินทันที ไม่ต้องรอหมดเวลา */
+function maybeResolveSpecialQuizAllAnswered(sid, space) {
+  const sess = space.specialQuiz && space.specialQuiz.session;
+  if (!sess || sess.resolving) return;
+  const expected = specialQuizExpectedIds(space, sess);
+  const allAnswered = expected.length > 0 && expected.every((pid) => Number.isInteger(sess.answers[pid]));
+  if (allAnswered) resolveSpecialQuizQuestion(sid, space, false);
+}
+
+/** บอททยอยตอบถูกภายในเวลาตอบ (ตอบถูกเสมอเพื่อให้ทีมมีโอกาสได้การ์ด) */
+function scheduleSpecialQuizBotAnswers(sid, space, sess, q) {
+  const bots = (Array.isArray(sess.roster) ? sess.roster : []).filter((m) => m.isBot);
+  if (!bots.length) return;
+  const windowMs = Math.max(1200, SPECIAL_QUIZ_ANSWER_MS - 1500);
+  bots.forEach((b) => {
+    const delay = 900 + Math.floor(Math.random() * windowMs);
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      const sNow = spNow && spNow.specialQuiz && spNow.specialQuiz.session;
+      if (!spNow || sNow !== sess || sess.resolving) return;
+      if (Number.isInteger(sess.answers[b.id])) return;
+      sess.answers[b.id] = q.correctIndex;
+      io.to(sid).emit('special-quiz-answer-update', { id: b.id, answered: true });
+      maybeResolveSpecialQuizAllAnswered(sid, spNow);
+    }, delay);
+    space.specialQuizTimers.push(t);
+  });
+}
+
+function sendSpecialQuizQuestion(sid, space) {
+  const sq = space.specialQuiz;
+  const sess = sq && sq.session;
+  if (!sess) return;
+  const q = sess.questions[sess.qIndex];
+  if (!q) { endSpecialQuizSession(sid, space, false); return; }
+  sess.answers = {};
+  sess.phaseEndsAt = Date.now() + SPECIAL_QUIZ_ANSWER_MS;
+  io.to(sid).emit('special-quiz-question', {
+    index: sess.qIndex,
+    total: sess.questions.length,
+    text: q.text,
+    choices: q.choices,
+    endsAt: sess.phaseEndsAt,
+    iconType: sq.iconType,
+    roster: specialQuizRosterPayload(sess),
+  });
+  scheduleSpecialQuizBotAnswers(sid, space, sess, q);
+  const t = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.specialQuiz !== sq || sq.session !== sess) return;
+    resolveSpecialQuizQuestion(sid, spNow, true);
+  }, SPECIAL_QUIZ_ANSWER_MS + 80);
+  space.specialQuizTimers.push(t);
+}
+
+/** ตัดสินข้อปัจจุบัน: ต้องตอบครบทุกคน และถูกทุกคน จึงผ่าน */
+function resolveSpecialQuizQuestion(sid, space, fromTimeout) {
+  const sq = space.specialQuiz;
+  const sess = sq && sq.session;
+  if (!sess || sess.resolving) return;
+  sess.resolving = true;
+  clearSpecialQuizTimers(space);
+  const q = sess.questions[sess.qIndex];
+  const expected = specialQuizExpectedIds(space, sess);
+  let allCorrect = expected.length > 0;
+  expected.forEach((pid) => {
+    const a = sess.answers[pid];
+    if (!(Number.isInteger(a) && a === q.correctIndex)) allCorrect = false;
+  });
+  io.to(sid).emit('special-quiz-result', {
+    index: sess.qIndex,
+    correctIndex: q.correctIndex,
+    answers: { ...sess.answers },
+    roster: specialQuizRosterPayload(sess),
+    allCorrect,
+    timeout: !!fromTimeout,
+  });
+  if (!allCorrect) {
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      if (!spNow || spNow.specialQuiz !== sq) return;
+      endSpecialQuizSession(sid, spNow, false);
+    }, SPECIAL_QUIZ_REVEAL_MS);
+    space.specialQuizTimers.push(t);
+    return;
+  }
+  sess.qIndex++;
+  if (sess.qIndex >= sess.questions.length) {
+    const t = setTimeout(() => {
+      const spNow = spaces.get(sid);
+      if (!spNow || spNow.specialQuiz !== sq) return;
+      endSpecialQuizSession(sid, spNow, true);
+    }, SPECIAL_QUIZ_REVEAL_MS);
+    space.specialQuizTimers.push(t);
+    return;
+  }
+  const t = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.specialQuiz !== sq || sq.session !== sess) return;
+    sess.resolving = false;
+    sendSpecialQuizQuestion(sid, spNow);
+  }, SPECIAL_QUIZ_REVEAL_MS);
+  space.specialQuizTimers.push(t);
+}
+
+/**
+ * นิยามการ์ดพิเศษ 7 ใบ — when = ช่วงที่การ์ดทำงาน:
+ *  minigame    = ใช้ทันทีในมินิเกมที่เพิ่งเล่น (Time Dilation)
+ *  now         = ใช้ทันทีตอนได้รับ (Fund coins)
+ *  after_game  = ตอนจบมินิเกมก่อนกลับ LobbyB (Free Evidence)
+ *  pre_trial   = ก่อนโหวตพิจารณาคดี (Silence)
+ *  trial_vote  = ระหว่างโหวตพิจารณาคดี (Extension)
+ *  trial_revote= หลังเฉลยถ้าจับผิดตัว (Bail Coin)
+ *  lobby_next  = ใน LobbyB ก่อนเลือกมินิเกมรอบหน้า (Ban)
+ */
+const SPECIAL_CARD_DEFS = {
+  1: { key: 'time_dilation', when: 'minigame',     addSec: 10, th: 'เพิ่มเวลาเล่นมินิเกม +10 วินาที' },
+  2: { key: 'extension',     when: 'trial_vote',   addSec: 10, th: 'เพิ่มเวลาโหวตพิจารณาคดี +10 วินาที' },
+  3: { key: 'ban',           when: 'lobby_next',               th: 'โหวตแบนผู้เล่น 1 คน ไม่ให้เล่นมินิเกมรอบหน้า' },
+  4: { key: 'silence',       when: 'pre_trial',                th: 'โหวตปิดปากผู้เล่น 1 คน ห้ามโหวตในพิจารณาคดี' },
+  5: { key: 'bail',          when: 'trial_revote',             th: 'จับผิดตัว ให้โหวตใหม่ได้ 1 ครั้ง' },
+  6: { key: 'fund',          when: 'now',          coins: 10,  th: 'ทุกคนรับ +10 COINS' },
+  7: { key: 'free_evidence', when: 'after_game',   evidence: 2, th: 'ทุกคนรับหลักฐานฟรี +2 ใบ' },
+};
+
+function specialCardDef(cardId) {
+  return SPECIAL_CARD_DEFS[Number(cardId)] || null;
+}
+
+/** payload การ์ดสำหรับ client (รวม metadata การใช้งาน) */
+function specialCardClientPayload(card) {
+  if (!card) return null;
+  const def = specialCardDef(card.cardId) || {};
+  return {
+    cardId: card.cardId || null,
+    th: card.th || def.th || '',
+    en: card.en || '',
+    rarity: card.rarity || 'common',
+    imageUrl: card.imageUrl || (card.cardId ? specialCardImageUrl(card.cardId) : ''),
+    txtImageUrl: card.txtImageUrl || (card.cardId ? specialCardTxtImageUrl(card.cardId) : ''),
+    effectKey: def.key || '',
+    effectWhen: def.when || '',
+    addSec: def.addSec || 0,
+    desc: def.th || '',
+  };
+}
+
+/** ใช้การ์ดที่ทำงาน "ทันที" (minigame / now) — ส่วนที่เหลือเข้าคิวรอ flow ที่ถูก */
+function applySpecialCardImmediate(sid, space, card) {
+  const def = specialCardDef(card && card.cardId);
+  if (!def) return;
+  if (def.when === 'minigame' && def.key === 'time_dilation') {
+    /* +10 วิให้รอบ quiz (mng8a80o) ตอน resume — มินิเกมอื่นฝั่ง client ขยายเอง */
+    space.timeDilationPendingSec = (space.timeDilationPendingSec || 0) + (def.addSec || 10);
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(card),
+      addSec: def.addSec || 10,
+    });
+    consumePendingSpecialCard(space, card.cardId);
+    return;
+  }
+  if (def.when === 'now' && def.key === 'fund') {
+    /* +COINS — แต่ละ client บวกเหรียญของตัวเองผ่าน PHP (server ไม่รู้ playerKey) */
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(card),
+      coins: def.coins || 10,
+    });
+    consumePendingSpecialCard(space, card.cardId);
+    return;
+  }
+  /* การ์ดที่เหลือ (after_game / pre_trial / trial_vote / trial_revote / lobby_next)
+     — คงไว้ใน pendingSpecialCard เพื่อใช้ภายหลัง */
+}
+
+function consumePendingSpecialCard(space, cardId) {
+  if (space.pendingSpecialCard && space.pendingSpecialCard.cardId === Number(cardId)) {
+    space.pendingSpecialCard.consumed = true;
+  }
+}
+
+function endSpecialQuizSession(sid, space, success) {
+  const sq = space.specialQuiz;
+  if (!sq) return;
+  clearSpecialQuizTimers(space);
+  sq.done = true;
+  sq.session = null;
+  let cardOut = null;
+  if (success && sq.card && (sq.card.cardId || sq.card.imageUrl)) {
+    space.specialCardAwardedThisRun = sq.card;
+    cardOut = specialCardClientPayload(sq.card);
+    space.pendingSpecialCard = { cardId: Number(sq.card.cardId) || null, card: sq.card, consumed: false };
+    applySpecialCardImmediate(sid, space, sq.card);
+  }
+  io.to(sid).emit('special-quiz-ended', { success: !!success, card: cardOut });
+  /* รอ client กด «เล่นต่อ» ก่อนค่อยเล่นรอบ quiz ต่อ (กันเวลาเดินตอนค้างอ่านการ์ด)
+     — มี safety timeout กันค้างถ้าไม่มีใครกด */
+  space.specialQuizAwaitContinue = true;
+  if (space.specialQuizContinueTimer) clearTimeout(space.specialQuizContinueTimer);
+  space.specialQuizContinueTimer = setTimeout(() => {
+    space.specialQuizContinueTimer = null;
+    finishSpecialQuizContinue(sid, space);
+  }, 32000);
+}
+
+/** เล่นรอบ quiz ต่อหลังผู้เล่นกด «เล่นต่อ» (เรียกครั้งเดียว / หรือ safety timeout) */
+function finishSpecialQuizContinue(sid, space) {
+  if (!space || !space.specialQuizAwaitContinue) return;
+  space.specialQuizAwaitContinue = false;
+  if (space.specialQuizContinueTimer) {
+    clearTimeout(space.specialQuizContinueTimer);
+    space.specialQuizContinueTimer = null;
+  }
+  resumeQuizAfterSpecialQuiz(sid, space);
+}
+
+function startSpecialQuizSession(sid, space) {
+  const sq = space.specialQuiz;
+  if (!sq || sq.triggered || sq.done) return false;
+  const settings = loadQuizSettings();
+  const set = getSpecialQuizSet(settings, sq.level, sq.caseId);
+  const all = (set && Array.isArray(set.questions) ? set.questions : [])
+    .map(specialQuizNormalizeQuestion)
+    .filter(Boolean);
+  if (!all.length) return false;
+  /* ควิซพิเศษ = สุ่มถามแค่ 1 ข้อ (รับการ์ดพิเศษ) */
+  const picked = specialQuizShuffle(all).slice(0, 1);
+  sq.triggered = true;
+  sq.session = {
+    questions: picked,
+    qIndex: 0,
+    answers: {},
+    phaseEndsAt: 0,
+    resolving: false,
+    roster: buildSpecialQuizRoster(space),
+  };
+  clearSpecialQuizTimers(space);
+  pauseQuizForSpecialQuiz(sid, space);
+  io.to(sid).emit('special-quiz-icon-clear', {});
+  sendSpecialQuizQuestion(sid, space);
+  return true;
+}
+
+function defaultQuizSettings() {
+  return {
+    readMs: 10000,
+    answerMs: 5000,
+    betweenMs: 3500,
+    /** quiz_carry: โชว์เฉพาะคำถามก่อน (มิลลิวิ) แล้วค่อยให้หยิบตัวเลือก — 0 = ไม่รอ */
+    carryReadMs: 3000,
+    /** quiz_carry: หลังตัวเลือกขึ้น ให้เวลาตอบ (มิลลิวิ) */
+    carryAnswerMs: 5000,
+    /** quiz_carry: จำนวนข้อต่อเซสชันก่อนจบเกม (พรีวิว) — 0 = ไม่จบอัตโนมัติ */
+    carrySessionLength: 0,
+    /** quiz_carry: สีแผง #quiz-map-question-panel ในเกม/พรีวิว (จัดใน Admin แท็บหยิบมาวาง) */
+    carryMapPanelTheme: defaultCarryMapPanelTheme(),
+    /** เกมตอบคำถามถูก/ผิด: สีแผงคำถามบนแผนที่ (#quiz-map-question-panel) — Admin แท็บคำถามเกม */
+    quizMapPanelTheme: defaultCarryMapPanelTheme(),
+    /** quiz_carry: สี/ขอบ/ขนาดตัวเลขนับ 3-2-1 (embed พรีวิว) — Admin แท็บหยิบมาวาง */
+    carryEmbedCountdownTheme: defaultCarryEmbedCountdownTheme(),
+    /** quiz_carry: สีป้ายตัวเลือกบนแผนที่ (canvas) ต่อช่อง 1–16 */
+    carryChoicePlaqueThemes: defaultCarryChoicePlaqueThemes(),
+    /** legacy: ช่องแรกเท่ากับ carryChoicePlaqueThemes[0] */
+    carryChoicePlaqueTheme: defaultCarryChoicePlaqueTheme(),
+    /** quiz_carry: ขยายป้ายตัวเลือกบนแมป (กว้าง/สูง/ฟอนต์) — 0.85–2.5 */
+    carryChoicePlaqueMapScale: 1.25,
+    /** quiz_carry: ถ้าใส่รหัสฉาก + คูณ — เดินเร็วเฉพาะแมปนั้น (เทียบกับค่าเริ่มในไคลเอนต์) */
+    carryWalkSpeedMultForMapId: '',
+    carryWalkSpeedMult: null,
+    /** ถูก/ผิด: สุ่มกี่ข้อต่อรอบจากชุดคำถาม (สูงสุดเท่าที่มีในชุด) */
+    quizRoundQuestionCount: 10,
+    questions: [],
+    carryQuestions: [],
+    battleQuizMcq: [],
+    /** 15 ชุดคำถามพิเศษ (Level×Case) สำหรับรับการ์ดพิเศษ */
+    specialQuizSets: sanitizeSpecialQuizSets({}),
+  };
+}
+
+function defaultCarryMapPanelTheme() {
+  return {
+    panelBg: 'rgba(12, 14, 28, 0.88)',
+    panelBorder: 'rgba(255, 214, 102, 0.7)',
+    borderWidthPx: 2,
+    textColor: '#f1f5f9',
+    questionFontMinPx: 10,
+    questionFontMaxPx: 24,
+  };
+}
+
+function sanitizeCssColorToken(input, fallback) {
+  const t = String(input == null ? '' : input).trim().slice(0, 120);
+  if (!t) return fallback;
+  if (/url\s*\(|expression\s*\(|@import|\/\*|javascript|<|>|\\0/i.test(t)) return fallback;
+  if (/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(t)) return t;
+  if (/^rgba?\(\s*[^)]+\)$/i.test(t)) {
+    const inner = t.replace(/^rgba?\(\s*/i, '').replace(/\)\s*$/, '');
+    if (inner.length <= 96 && /^[0-9\s.,%+-]+$/.test(inner)) return t.replace(/\s+/g, ' ').trim();
+  }
+  return fallback;
+}
+
+function sanitizeCarryMapPanelTheme(raw) {
+  const d = defaultCarryMapPanelTheme();
+  if (!raw || typeof raw !== 'object') return d;
+  let qMin = Number(raw.questionFontMinPx);
+  let qMax = Number(raw.questionFontMaxPx);
+  if (!Number.isFinite(qMin)) qMin = d.questionFontMinPx;
+  if (!Number.isFinite(qMax)) qMax = d.questionFontMaxPx;
+  qMin = Math.round(Math.max(10, Math.min(40, qMin)));
+  qMax = Math.round(Math.max(14, Math.min(56, qMax)));
+  if (qMax < qMin) {
+    const t = qMin;
+    qMin = qMax;
+    qMax = t;
+  }
+  return {
+    panelBg: sanitizeCssColorToken(raw.panelBg, d.panelBg),
+    panelBorder: sanitizeCssColorToken(raw.panelBorder, d.panelBorder),
+    borderWidthPx: (() => {
+      let w = Number(raw.borderWidthPx);
+      if (!Number.isFinite(w)) w = d.borderWidthPx;
+      return Math.max(0, Math.min(12, Math.round(w)));
+    })(),
+    textColor: sanitizeCssColorToken(raw.textColor, d.textColor),
+    questionFontMinPx: qMin,
+    questionFontMaxPx: qMax,
+  };
+}
+
+/** ป้ายตัวเลือกบนแผนที่ (canvas) — quiz_carry */
+function defaultCarryChoicePlaqueTheme() {
+  return {
+    borderMode: 'neon',
+    fixedBorder: 'rgba(122, 200, 255, 0.9)',
+    fillBg: 'rgba(12, 10, 20, 0.88)',
+    textColor: 'rgba(248, 249, 255, 1)',
+    borderWidthPx: 2.5,
+  };
+}
+
+function sanitizeCarryChoicePlaqueTheme(raw) {
+  const d = defaultCarryChoicePlaqueTheme();
+  if (!raw || typeof raw !== 'object' || Array.isArray(raw)) return sanitizeCarryChoicePlaqueTheme({});
+  const mode = String(raw.borderMode || '').toLowerCase() === 'fixed' ? 'fixed' : 'neon';
+  let bw = Number(raw.borderWidthPx);
+  if (!Number.isFinite(bw)) bw = d.borderWidthPx;
+  bw = Math.round(Math.max(0, Math.min(8, bw)) * 10) / 10;
+  return {
+    borderMode: mode,
+    fixedBorder: sanitizeCssColorToken(raw.fixedBorder, d.fixedBorder),
+    fillBg: sanitizeCssColorToken(raw.fillBg, d.fillBg),
+    textColor: sanitizeCssColorToken(raw.textColor, d.textColor),
+    borderWidthPx: bw,
+    plaqueImageUrl: sanitizeCarryChoiceImageUrl(raw.plaqueImageUrl),
+  };
+}
+
+const QUIZ_CARRY_PLAQUE_THEME_SLOTS = 16;
+
+function defaultCarryChoicePlaqueThemes() {
+  const out = [];
+  for (let i = 0; i < QUIZ_CARRY_PLAQUE_THEME_SLOTS; i++) {
+    out.push(sanitizeCarryChoicePlaqueTheme({}));
+  }
+  return out;
+}
+
+/** อาร์เรย์ 16 ช่อง — รับได้ทั้ง carryChoicePlaqueThemes หรืออ็อบเจ็กต์เดียว (legacy) */
+function sanitizeCarryChoicePlaqueThemes(raw) {
+  if (Array.isArray(raw) && raw.length > 0) {
+    const out = [];
+    for (let i = 0; i < QUIZ_CARRY_PLAQUE_THEME_SLOTS; i++) {
+      out.push(sanitizeCarryChoicePlaqueTheme(raw[i] || {}));
+    }
+    return out;
+  }
+  if (raw != null && typeof raw === 'object' && !Array.isArray(raw)) {
+    const one = sanitizeCarryChoicePlaqueTheme(raw);
+    return Array.from({ length: QUIZ_CARRY_PLAQUE_THEME_SLOTS }, () => ({ ...one }));
+  }
+  return defaultCarryChoicePlaqueThemes();
+}
+
+function sanitizeCarryChoiceImageUrl(input) {
+  const s = String(input == null ? '' : input).trim().slice(0, 512);
+  if (!s) return '';
+  if (/[\s<>'"`]/.test(s)) return '';
+  if (s.startsWith('/')) {
+    if (!/^\/[\w\-./?#=&%+]+$/i.test(s)) return '';
+    return s;
+  }
+  const low = s.toLowerCase();
+  if (!low.startsWith('https://') && !low.startsWith('http://')) return '';
+  try {
+    const u = new URL(s);
+    if (u.protocol !== 'http:' && u.protocol !== 'https:') return '';
+    return s;
+  } catch (e) {
+    return '';
+  }
+}
+
+function defaultCarryEmbedCountdownTheme() {
+  return {
+    overlayBackdrop: 'rgba(6, 8, 14, 0.52)',
+    innerBg: 'rgba(0, 0, 0, 0.78)',
+    innerBorder: 'rgba(94, 234, 212, 0.82)',
+    innerBorderWpx: 1,
+    innerRadiusPx: 14,
+    digitColor: '#ffe066',
+    mapDigitCqmin: 78,
+    mapDigitCqh: 82,
+    mapDigitMaxPx: 220,
+    screenDigitVw: 32,
+    screenDigitMaxPx: 200,
+  };
+}
+
+function sanitizeCarryEmbedCountdownTheme(raw) {
+  const d = defaultCarryEmbedCountdownTheme();
+  if (!raw || typeof raw !== 'object') return d;
+  const clampN = (v, lo, hi, def) => {
+    const n = Number(v);
+    if (!Number.isFinite(n)) return def;
+    return Math.max(lo, Math.min(hi, Math.round(n)));
+  };
+  return {
+    overlayBackdrop: sanitizeCssColorToken(raw.overlayBackdrop, d.overlayBackdrop),
+    innerBg: sanitizeCssColorToken(raw.innerBg, d.innerBg),
+    innerBorder: sanitizeCssColorToken(raw.innerBorder, d.innerBorder),
+    innerBorderWpx: clampN(raw.innerBorderWpx, 0, 12, d.innerBorderWpx),
+    innerRadiusPx: clampN(raw.innerRadiusPx, 0, 32, d.innerRadiusPx),
+    digitColor: sanitizeCssColorToken(raw.digitColor, d.digitColor),
+    mapDigitCqmin: clampN(raw.mapDigitCqmin, 35, 100, d.mapDigitCqmin),
+    mapDigitCqh: clampN(raw.mapDigitCqh, 35, 100, d.mapDigitCqh),
+    mapDigitMaxPx: clampN(raw.mapDigitMaxPx, 48, 400, d.mapDigitMaxPx),
+    screenDigitVw: clampN(raw.screenDigitVw, 6, 44, d.screenDigitVw),
+    screenDigitMaxPx: clampN(raw.screenDigitMaxPx, 48, 220, d.screenDigitMaxPx),
+  };
+}
+
+/** หมวด Quiz Battle (อ้างอิงธีมหน้า Quiz-Battle) — id ต้องตรงกับแอดมิน */
+const QUIZ_BATTLE_CATEGORY_IDS = new Set([
+  'cybercrime',
+  'cyber_law',
+  'privacy',
+  'digital_security',
+  'social_media',
+  'ethics',
+  'ai_data',
+]);
+
+/** คำถาม 3 ตัวเลือก A/B/C แยกหมวด — สำหรับโหมด Quiz Battle / โดม */
+function sanitizeBattleQuizMcq(arr) {
+  if (!Array.isArray(arr)) return [];
+  const out = [];
+  for (const q of arr) {
+    if (!q || typeof q !== 'object') continue;
+    let categoryId = String(q.categoryId || '').trim();
+    if (!categoryId || !QUIZ_BATTLE_CATEGORY_IDS.has(categoryId)) {
+      categoryId = 'cybercrime';
+    }
+    const text = String(q.text || '').trim().slice(0, 500);
+    if (!text) continue;
+    const rawChoices = Array.isArray(q.choices) ? q.choices : [];
+    const choices = rawChoices.map((c) => String(c || '').trim().slice(0, 160));
+    if (choices.length !== 3 || !choices.every(Boolean)) continue;
+    let ci = Number(q.correctIndex);
+    if (!Number.isFinite(ci)) ci = 0;
+    ci = Math.max(0, Math.min(2, Math.floor(ci)));
+    out.push({ categoryId, text, choices, correctIndex: ci });
+    if (out.length >= 200) break;
+  }
+  return out;
+}
+
+/** คำถามแบบหลายตัวเลือก (หยิบมาวาง / quiz_carry) — เก็บใน quiz-settings.json */
+function sanitizeCarryQuestions(arr) {
+  if (!Array.isArray(arr)) return [];
+  const out = [];
+  for (const q of arr) {
+    if (!q || typeof q !== 'object') continue;
+    const text = String(q.text || '').trim().slice(0, 500);
+    if (!text) continue;
+    let choices = Array.isArray(q.choices)
+      ? q.choices.map((c) => String(c || '').trim().slice(0, 160)).filter(Boolean)
+      : [];
+    if (choices.length < 2) continue;
+    if (choices.length > 16) choices = choices.slice(0, 16);
+    let ci = Number(q.correctIndex);
+    if (!Number.isFinite(ci)) ci = 0;
+    ci = Math.max(0, Math.min(choices.length - 1, Math.floor(ci)));
+    const row = { text, choices, correctIndex: ci };
+    if (Array.isArray(q.choiceImageUrls) && q.choiceImageUrls.length) {
+      const urls = choices.map((_, idx) => sanitizeCarryChoiceImageUrl(q.choiceImageUrls[idx]));
+      if (urls.some((u) => u)) row.choiceImageUrls = urls;
+    }
+    out.push(row);
+    if (out.length >= 80) break;
+  }
+  return out;
+}
+
+function clampQuizMs(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(1000, Math.min(300000, Math.floor(v)));
+}
+
+function clampQuizBetweenMs(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(0, Math.min(300000, Math.floor(v)));
+}
+
+function clampCarrySessionLength(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.max(0, Math.min(500, Math.floor(v)));
+}
+
+/** เกมตอบคำถามถูก/ผิด: จำนวนข้อที่สุ่มจากชุดต่อรอบ (เซสชัน) — 1–50 */
+function clampQuizRoundQuestionCount(n, def) {
+  const v = Number(n);
+  if (!Number.isFinite(v)) {
+    const d = Number(def);
+    if (!Number.isFinite(d)) return 10;
+    return Math.max(1, Math.min(50, Math.floor(d)));
+  }
+  return Math.max(1, Math.min(50, Math.floor(v)));
+}
+
+function clampCarryChoicePlaqueMapScale(n, def) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return def;
+  return Math.round(Math.max(0.85, Math.min(2.5, v)) * 100) / 100;
+}
+
+/** รหัสฉาก (เช่น mnorwqx1) — ว่าง = ไม่ใช้คูณเดินแยกแมป */
+function sanitizeCarryWalkSpeedMultForMapId(raw) {
+  const t = String(raw == null ? '' : raw).trim().slice(0, 64);
+  if (!t) return '';
+  if (!/^[a-zA-Z0-9_-]+$/.test(t)) return '';
+  return t;
+}
+
+/** quiz_carry: คูณความเร็วเดินเมื่อ map id ตรง — null = ไม่ตั้ง */
+function clampCarryWalkSpeedMultSetting(n) {
+  if (n === null || n === undefined || n === '') return null;
+  const v = Number(n);
+  if (Number.isNaN(v)) return null;
+  return Math.round(Math.max(0.5, Math.min(3, v)) * 100) / 100;
+}
+
+function mergeQuizCarryFromMirrorIfSet(base) {
+  if (!QUIZ_SETTINGS_MIRROR_PATH) return base;
+  try {
+    if (!fs.existsSync(QUIZ_SETTINGS_MIRROR_PATH)) return base;
+    const raw = fs.readFileSync(QUIZ_SETTINGS_MIRROR_PATH, 'utf8');
+    const j = JSON.parse(raw);
+    if (!j || typeof j !== 'object') return base;
+    if (j.carryMapPanelTheme != null && typeof j.carryMapPanelTheme === 'object') {
+      base.carryMapPanelTheme = sanitizeCarryMapPanelTheme(j.carryMapPanelTheme);
+    }
+    if (j.quizMapPanelTheme != null && typeof j.quizMapPanelTheme === 'object') {
+      base.quizMapPanelTheme = sanitizeCarryMapPanelTheme(j.quizMapPanelTheme);
+    }
+    if (j.carryReadMs != null) {
+      base.carryReadMs = clampQuizBetweenMs(j.carryReadMs, base.carryReadMs);
+    }
+    if (j.carryAnswerMs != null) {
+      base.carryAnswerMs = clampQuizMs(j.carryAnswerMs, base.carryAnswerMs);
+    }
+    if (j.carrySessionLength != null) {
+      base.carrySessionLength = clampCarrySessionLength(j.carrySessionLength, base.carrySessionLength);
+    }
+    if (j.carryWalkSpeedMultForMapId != null) {
+      base.carryWalkSpeedMultForMapId = sanitizeCarryWalkSpeedMultForMapId(j.carryWalkSpeedMultForMapId);
+    }
+    if (j.carryWalkSpeedMult != null) {
+      const wm = clampCarryWalkSpeedMultSetting(j.carryWalkSpeedMult);
+      if (wm != null) base.carryWalkSpeedMult = wm;
+    }
+    if (j.carryEmbedCountdownTheme != null && typeof j.carryEmbedCountdownTheme === 'object') {
+      base.carryEmbedCountdownTheme = sanitizeCarryEmbedCountdownTheme(j.carryEmbedCountdownTheme);
+    }
+    if (Array.isArray(j.carryChoicePlaqueThemes) && j.carryChoicePlaqueThemes.length) {
+      base.carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueThemes);
+      base.carryChoicePlaqueTheme = base.carryChoicePlaqueThemes[0];
+    } else if (j.carryChoicePlaqueTheme != null && typeof j.carryChoicePlaqueTheme === 'object') {
+      base.carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueTheme);
+      base.carryChoicePlaqueTheme = base.carryChoicePlaqueThemes[0];
+    }
+    if (Array.isArray(j.carryQuestions) && j.carryQuestions.length) {
+      base.carryQuestions = sanitizeCarryQuestions(j.carryQuestions);
+    }
+    if (j.quizRoundQuestionCount != null) {
+      base.quizRoundQuestionCount = clampQuizRoundQuestionCount(j.quizRoundQuestionCount, base.quizRoundQuestionCount);
+    }
+    return base;
+  } catch (e) {
+    console.error('mergeQuizCarryFromMirrorIfSet', e.message);
+    return base;
+  }
+}
+
+/* ===== การ์ดหลักฐาน (Evidence Cards) — 3 คดี × ผู้ต้องสงสัย 3 × การ์ด 3 ใบ จัดการผ่าน Admin ===== */
+const EVIDENCE_CARDS_PATH = path.join(__dirname, 'data', 'evidence-cards.json');
+const EVIDENCE_RARITIES = ['common', 'rare', 'legendary'];
+const EVIDENCE_CASE_COUNT = 15;
+
+/* ===== รูปภาพคดี + Cutscene (LobbyA → LobbyB) — จัดการผ่าน Admin ===== */
+const CASE_MEDIA_PATH = path.join(__dirname, 'data', 'case-media.json');
+const CASE_MEDIA_COUNT = 15;
+/* Main-Lobby อยู่นอกโฟลเดอร์ Game (เสิร์ฟจาก /var/www/html) — ขึ้นไป 1 ระดับ */
+const MAIN_LOBBY_IMAGE_ROOT = path.join(__dirname, '..', 'Main-Lobby', 'IMAGE');
+
+function caseMediaDefault(n) {
+  const suspects = [1, 2, 3].map((s) => '/Main-Lobby/IMAGE/suspect-pick/case-' + n + '-suspect-' + s + '.png');
+  const culprits = [1, 2, 3].map((s) => '/Main-Lobby/IMAGE/culprit-prison/case-' + n + '-suspect-' + s + '.png');
+  return {
+    name: 'คดีที่ ' + n,
+    art: '/Main-Lobby/IMAGE/case/case-' + n + '.png',
+    detail: '/Main-Lobby/IMAGE/case/case-detail-' + n + '.png',
+    story: [
+      '/Main-Lobby/IMAGE/cutscene/case-' + n + '-story-1.png',
+      '/Main-Lobby/IMAGE/cutscene/case-' + n + '-story-2.png',
+    ],
+    suspects,
+    culprits,
+  };
+}
+
+function sanitizeCaseMediaUrlList(arr, fallbackArr) {
+  const fb = Array.isArray(fallbackArr) ? fallbackArr : [];
+  const src = Array.isArray(arr) ? arr : [];
+  return [0, 1, 2].map((i) => sanitizeCaseMediaUrl(src[i], fb[i] || fb[0] || ''));
+}
+
+/** อนุญาตเฉพาะ path รูปภายในเว็บ (กัน URL ภายนอก/สคริปต์) — ไม่ผ่าน → คืนค่า fallback */
+function sanitizeCaseMediaUrl(v, fallback) {
+  if (typeof v !== 'string') return fallback;
+  const s = v.trim();
+  if (!s) return fallback;
+  if (!/^\/[\w./-]*\.(png|jpe?g|webp)$/i.test(s)) return fallback;
+  return s;
+}
+
+function sanitizeCaseMedia(obj) {
+  const src = (obj && typeof obj === 'object' && obj.cases && typeof obj.cases === 'object') ? obj.cases : {};
+  const cases = {};
+  for (let n = 1; n <= CASE_MEDIA_COUNT; n++) {
+    const d = caseMediaDefault(n);
+    const c = src[n] || src[String(n)] || {};
+    const story = Array.isArray(c.story) ? c.story : [];
+    cases[n] = {
+      name: (typeof c.name === 'string' && c.name.trim()) ? c.name.trim().slice(0, 80) : d.name,
+      art: sanitizeCaseMediaUrl(c.art, d.art),
+      detail: sanitizeCaseMediaUrl(c.detail, d.detail),
+      story: [sanitizeCaseMediaUrl(story[0], d.story[0]), sanitizeCaseMediaUrl(story[1], d.story[1])],
+      suspects: sanitizeCaseMediaUrlList(c.suspects, d.suspects),
+      culprits: sanitizeCaseMediaUrlList(c.culprits, d.culprits),
+    };
+  }
+  return { cases };
+}
+
+function loadCaseMedia() {
+  try {
+    if (fs.existsSync(CASE_MEDIA_PATH)) {
+      return sanitizeCaseMedia(JSON.parse(fs.readFileSync(CASE_MEDIA_PATH, 'utf8')));
+    }
+  } catch (e) { /* ignore — คืนค่า default */ }
+  return sanitizeCaseMedia({});
+}
+
+function saveCaseMedia(d) {
+  try {
+    const clean = sanitizeCaseMedia(d);
+    fs.writeFileSync(CASE_MEDIA_PATH, JSON.stringify(clean, null, 2), 'utf8');
+    return { ok: true, cases: clean.cases };
+  } catch (e) {
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') err = 'ไม่มีสิทธิ์เขียนไฟล์ case-media.json (chown เป็น user ที่รันเกม)';
+    else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+/** รายการรูปที่มีจริงในโฟลเดอร์ case / cutscene (ไว้ให้ Admin เลือก) */
+function listCaseMediaImages() {
+  const out = { case: [], cutscene: [], 'suspect-pick': [], 'culprit-prison': [] };
+  ['case', 'cutscene', 'suspect-pick', 'culprit-prison'].forEach((sub) => {
+    try {
+      const p = path.join(MAIN_LOBBY_IMAGE_ROOT, sub);
+      out[sub] = fs.readdirSync(p)
+        .filter((f) => /\.(png|jpe?g|webp)$/i.test(f))
+        .sort((a, b) => a.localeCompare(b, undefined, { numeric: true }))
+        .map((f) => '/Main-Lobby/IMAGE/' + sub + '/' + f);
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+  });
+  return out;
+}
+const EVIDENCE_IMAGE_DIRS = ['suspect-1', 'suspect-2', 'suspect-3'];
+/* rarity คิดจากเลขไฟล์การ์ด: 01-22 = common, 23-44 = rare, 45-54 = legendary (ชี้คนร้าย) */
+const EVIDENCE_RARITY_RANGES = [
+  { rarity: 'common', min: 1, max: 22, stars: 1 },
+  { rarity: 'rare', min: 23, max: 44, stars: 2 },
+  { rarity: 'legendary', min: 45, max: 54, stars: 3 },
+];
+
+function evidenceRarityForNum(n) {
+  for (const r of EVIDENCE_RARITY_RANGES) if (n >= r.min && n <= r.max) return r;
+  return EVIDENCE_RARITY_RANGES[0];
+}
+
+function evidenceCardImageDefault(suspectIdx, cardIdx) {
+  return '/Game/img/evidence-cards/suspect-' + (suspectIdx + 1) + '/Card-0' + (cardIdx + 1) + '.png';
+}
+
+/* แคชพูลรูปการ์ดต่อโฟลเดอร์ผู้ต้องสงสัย แยกตาม rarity (สแกนไฟล์จริง) */
+let _evidencePoolCache = null;
+let _evidencePoolCacheAt = 0;
+function evidenceImagePools() {
+  const now = Date.now();
+  if (_evidencePoolCache && (now - _evidencePoolCacheAt) < 30000) return _evidencePoolCache;
+  const pools = {};
+  EVIDENCE_IMAGE_DIRS.forEach((dir) => {
+    const buckets = { common: [], rare: [], legendary: [] };
+    try {
+      const p = path.join(__dirname, 'public', 'img', 'evidence-cards', dir);
+      fs.readdirSync(p).forEach((f) => {
+        const m = /^Card-0*(\d+)\.(png|jpe?g|webp)$/i.exec(f);
+        if (!m) return;
+        const num = parseInt(m[1], 10);
+        const rr = evidenceRarityForNum(num);
+        buckets[rr.rarity].push({ num, rarity: rr.rarity, stars: rr.stars, imageUrl: '/Game/img/evidence-cards/' + dir + '/' + f });
+      });
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+    Object.keys(buckets).forEach((k) => buckets[k].sort((a, b) => a.num - b.num));
+    pools[dir] = buckets;
+  });
+  _evidencePoolCache = pools;
+  _evidencePoolCacheAt = now;
+  return pools;
+}
+
+function evidencePoolCounts() {
+  const pools = evidenceImagePools();
+  const out = {};
+  EVIDENCE_IMAGE_DIRS.forEach((dir) => {
+    const b = pools[dir] || { common: [], rare: [], legendary: [] };
+    out[dir] = { common: b.common.length, rare: b.rare.length, legendary: b.legendary.length };
+  });
+  return out;
+}
+
+/* แปลงเกรด -> rarity key ('legendary'=ชี้คนร้าย/'rare'/'common') ตามเปอร์เซ็นต์ที่กำหนด */
+function rollEvidenceRarityKey(grade) {
+  const r = Math.random();
+  if (grade === 'A') return r < 0.30 ? 'legendary' : (r < 0.80 ? 'rare' : 'common');
+  if (grade === 'B') return r < 0.20 ? 'legendary' : (r < 0.50 ? 'rare' : 'common');
+  return r < 0.20 ? 'rare' : 'common'; // C ลงไป: ไม่มีชี้คนร้าย
+}
+
+/* โฟลเดอร์รูปของผู้ต้องสงสัยตาม config คดี (fallback = suspect-(idx+1)) */
+function evidenceImageDirForSuspect(space, suspectIndex) {
+  const def = EVIDENCE_IMAGE_DIRS[suspectIndex] || EVIDENCE_IMAGE_DIRS[0];
+  try {
+    const cid = String((space && space.caseId) || '1');
+    const cfg = loadEvidenceCards();
+    const cse = cfg.cases && cfg.cases[cid];
+    const s = cse && cse.suspects && cse.suspects[suspectIndex];
+    if (s && s.imageDir && EVIDENCE_IMAGE_DIRS.indexOf(s.imageDir) >= 0) return s.imageDir;
+  } catch (e) { /* ใช้ default */ }
+  return def;
+}
+
+/* เลือกการ์ด 1 ใบจากพูลของผู้ต้องสงสัยตามเกรด (มี fallback ถ้า rarity นั้นไม่มีรูป) */
+function pickEvidenceCardForSuspect(space, suspectIndex, grade) {
+  const imageDir = evidenceImageDirForSuspect(space, suspectIndex);
+  const pools = evidenceImagePools();
+  const buckets = pools[imageDir] || pools[EVIDENCE_IMAGE_DIRS[0]] || { common: [], rare: [], legendary: [] };
+  let want = rollEvidenceRarityKey(grade || 'C');
+  let pool = buckets[want];
+  if (!pool || !pool.length) {
+    const tryOrder = ['common', 'rare', 'legendary'];
+    for (const k of tryOrder) { if (buckets[k] && buckets[k].length) { pool = buckets[k]; want = k; break; } }
+  }
+  if (!pool || !pool.length) return null;
+  const pick = pool[Math.floor(Math.random() * pool.length)];
+  return { rarity: pick.rarity, stars: pick.stars, num: pick.num, imageUrl: pick.imageUrl };
+}
+
+function evidenceGradeFromPct(avgPct) {
+  return avgPct >= 80 ? 'A' : avgPct >= 60 ? 'B' : 'C';
+}
+
+/* คะแนนดิบของผู้เล่นต่อ gameType (ใช้กรณี normalize เทียบ best) */
+function evidencePlayerRawScore(space, p, gameType) {
+  switch (gameType) {
+    case 'gauntlet':
+    case 'jump_survive': return Math.max(0, p.gauntletScore | 0);
+    case 'space_shooter': return Math.max(0, p.spaceShooterScore | 0);
+    case 'balloon_boss': return Math.max(0, p.balloonBossScore | 0);
+    default:
+      return Math.max(0, p.gauntletScore | 0) || Math.max(0, p.spaceShooterScore | 0) || Math.max(0, p.balloonBossScore | 0);
+  }
+}
+
+/* เกรดของรอบ (A/B/C) — quiz ใช้ % สัมบูรณ์, เกมอื่น normalize เทียบ best แล้วเฉลี่ยทั้งห้อง */
+function computeRunGradeForEvidence(space) {
+  try {
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const gameType = md && md.gameType;
+    if (gameType === 'gauntlet' || gameType === 'jump_survive') {
+      return buildGauntletCrownMissionPayload(space).grade || 'C';
+    }
+    /* เกมจริงหรือไม่ (quiz TF): เฉลี่ย % ของคะแนนเทียบเต็ม (จำนวนข้อ × แต้มต่อข้อ) */
+    if (gameType === 'quiz' && space.quizSession && space.quizSession.players) {
+      const total = (space.quizSession.questions || []).length * QUIZ_TF_POINTS_PER_CORRECT;
+      const ids = Object.keys(space.quizSession.players);
+      if (total > 0 && ids.length) {
+        const avgPct = ids.reduce((s, id) => {
+          const sc = Math.max(0, Number(space.quizSession.players[id].score) || 0);
+          return s + Math.min(100, (sc / total) * 100);
+        }, 0) / ids.length;
+        return evidenceGradeFromPct(avgPct);
+      }
+    }
+    const peers = [...space.peers.values()];
+    if (!peers.length) return 'C';
+    const raw = peers.map((p) => evidencePlayerRawScore(space, p, gameType));
+    const max = Math.max(1, ...raw);
+    const avgPct = raw.reduce((s, v) => s + (v / max) * 100, 0) / raw.length;
+    return evidenceGradeFromPct(avgPct);
+  } catch (e) { return 'C'; }
+}
+
+/* card object ที่เก็บในแฟ้มหลักฐาน */
+function sanitizeStoredEvidenceCard(c) {
+  if (!c || typeof c !== 'object') return null;
+  let rar = String(c.rarity || 'common').toLowerCase();
+  if (EVIDENCE_RARITIES.indexOf(rar) < 0) rar = 'common';
+  const img = String(c.imageUrl || '').slice(0, 400);
+  if (!img) return null;
+  let stars = Math.floor(Number(c.stars));
+  if (!(stars >= 1 && stars <= 3)) stars = rar === 'legendary' ? 3 : rar === 'rare' ? 2 : 1;
+  let num = Math.floor(Number(c.num));
+  if (!(num >= 1)) num = 0;
+  return { rarity: rar, stars, num, imageUrl: img };
+}
+
+function sanitizeEvidenceCases(obj) {
+  const src = (obj && obj.cases) ? obj.cases : {};
+  const out = {};
+  for (let i = 1; i <= EVIDENCE_CASE_COUNT; i++) {
+    const cid = String(i);
+    const cse = src[cid] || {};
+    const suspects = Array.isArray(cse.suspects) ? cse.suspects : [];
+    const outSus = [];
+    for (let si = 0; si < 3; si++) {
+      const s = suspects[si] || {};
+      let dir = String(s.imageDir || EVIDENCE_IMAGE_DIRS[si] || EVIDENCE_IMAGE_DIRS[0]);
+      if (EVIDENCE_IMAGE_DIRS.indexOf(dir) < 0) dir = EVIDENCE_IMAGE_DIRS[si] || EVIDENCE_IMAGE_DIRS[0];
+      outSus.push({
+        linkName: String(s.linkName || ('ผู้ต้องสงสัย ' + (si + 1))).slice(0, 60),
+        imageDir: dir,
+      });
+    }
+    out[cid] = { suspects: outSus };
+  }
+  return { cases: out };
+}
+
+function loadEvidenceCards() {
+  try {
+    if (fs.existsSync(EVIDENCE_CARDS_PATH)) {
+      return sanitizeEvidenceCases(JSON.parse(fs.readFileSync(EVIDENCE_CARDS_PATH, 'utf8')));
+    }
+  } catch (e) { /* ignore — คืนค่า default */ }
+  return sanitizeEvidenceCases({});
+}
+
+/** รายการรูปการ์ดที่มีจริงในแต่ละโฟลเดอร์ผู้ต้องสงสัย (ไว้ให้ Admin เลือกรูป) */
+function listEvidenceCardImages() {
+  const out = { 'suspect-1': [], 'suspect-2': [], 'suspect-3': [] };
+  Object.keys(out).forEach((dir) => {
+    try {
+      const p = path.join(__dirname, 'public', 'img', 'evidence-cards', dir);
+      const files = fs.readdirSync(p)
+        .filter((f) => /\.(png|jpe?g|webp)$/i.test(f))
+        .sort((a, b) => a.localeCompare(b, undefined, { numeric: true }));
+      out[dir] = files.map((f) => '/Game/img/evidence-cards/' + dir + '/' + f);
+    } catch (e) { /* โฟลเดอร์อาจไม่มี */ }
+  });
+  return out;
+}
+
+function saveEvidenceCards(d) {
+  try {
+    const clean = sanitizeEvidenceCases(d);
+    fs.writeFileSync(EVIDENCE_CARDS_PATH, JSON.stringify(clean, null, 2), 'utf8');
+    return { ok: true, cases: clean.cases };
+  } catch (e) {
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') err = 'ไม่มีสิทธิ์เขียนไฟล์ evidence-cards.json (chown เป็น user ที่รันเกม)';
+    else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function loadQuizSettings() {
+  try {
+    if (fs.existsSync(QUIZ_SETTINGS_PATH)) {
+      const j = JSON.parse(fs.readFileSync(QUIZ_SETTINGS_PATH, 'utf8'));
+      const d = defaultQuizSettings();
+      const questions = Array.isArray(j.questions) ? j.questions : [];
+      const carryQuestions = sanitizeCarryQuestions(j.carryQuestions);
+      const battleQuizMcq = sanitizeBattleQuizMcq(j.battleQuizMcq);
+      const carryMapPanelTheme = sanitizeCarryMapPanelTheme(j.carryMapPanelTheme);
+      const quizMapPanelTheme = sanitizeCarryMapPanelTheme(j.quizMapPanelTheme);
+      const carryEmbedCountdownTheme = sanitizeCarryEmbedCountdownTheme(j.carryEmbedCountdownTheme);
+      const carryChoicePlaqueThemes = Array.isArray(j.carryChoicePlaqueThemes) && j.carryChoicePlaqueThemes.length
+        ? sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueThemes)
+        : sanitizeCarryChoicePlaqueThemes(j.carryChoicePlaqueTheme);
+      const carryChoicePlaqueTheme = carryChoicePlaqueThemes[0];
+      const carryChoicePlaqueMapScale = clampCarryChoicePlaqueMapScale(j.carryChoicePlaqueMapScale, d.carryChoicePlaqueMapScale);
+      const carryWalkSpeedMultForMapId = sanitizeCarryWalkSpeedMultForMapId(j.carryWalkSpeedMultForMapId);
+      let carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(j.carryWalkSpeedMult);
+      if (!carryWalkSpeedMultForMapId) carryWalkSpeedMult = null;
+      else if (carryWalkSpeedMult == null) carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(1.42);
+      const out = {
+        readMs: clampQuizMs(j.readMs, d.readMs),
+        answerMs: clampQuizMs(j.answerMs, d.answerMs),
+        betweenMs: clampQuizBetweenMs(j.betweenMs, d.betweenMs),
+        carryReadMs: clampQuizBetweenMs(j.carryReadMs, d.carryReadMs),
+        carryAnswerMs: clampQuizMs(j.carryAnswerMs, d.carryAnswerMs),
+        carrySessionLength: clampCarrySessionLength(j.carrySessionLength, d.carrySessionLength),
+        carryMapPanelTheme,
+        quizMapPanelTheme,
+        carryEmbedCountdownTheme,
+        carryChoicePlaqueThemes,
+        carryChoicePlaqueTheme,
+        carryChoicePlaqueMapScale,
+        carryWalkSpeedMultForMapId,
+        carryWalkSpeedMult,
+        quizRoundQuestionCount: clampQuizRoundQuestionCount(j.quizRoundQuestionCount, d.quizRoundQuestionCount),
+        questions,
+        carryQuestions,
+        battleQuizMcq,
+        specialQuizSets: sanitizeSpecialQuizSets(j.specialQuizSets),
+      };
+      return mergeQuizCarryFromMirrorIfSet(out);
+    }
+  } catch (e) { console.error('loadQuizSettings', e.message); }
+  return mergeQuizCarryFromMirrorIfSet(defaultQuizSettings());
+}
+
+const GAUNTLET_DEFAULT_TICK_MS = 220;
+const GAUNTLET_DEFAULT_JUMP_TICKS = 16;
+const GAUNTLET_DEFAULT_TIME_LIMIT_SEC = 0;
+/** รอบสวิงซ้าย-ขวา ต่อวินาที (Stack) — ค่าน้อย = ช้า · cycles per second of horizontal swing */
+const STACK_SWING_HZ_DEFAULT = 0.55;
+
+function defaultGameTiming() {
+  return {
+    gauntletTickMs: GAUNTLET_DEFAULT_TICK_MS,
+    gauntletJumpTicks: GAUNTLET_DEFAULT_JUMP_TICKS,
+    gauntletTimeLimitSec: GAUNTLET_DEFAULT_TIME_LIMIT_SEC,
+    ...defaultGauntletVisuals(),
+    stackSwingHz: STACK_SWING_HZ_DEFAULT,
+    stackBlockWidthTiles: null,
+    /** กระโดดให้รอด: ความสูงกระโดด = ทวีคูณ × ความสูงตัวละคร (tile) — 0.5–4 ค่าเริ่ม 1.5 */
+    jumpSurviveJumpHeightMult: 1.5,
+    /** จำกัดเวลารอบภารกิจ/มินิเกมกระโดดขึ้นแท่น (วินาที) — 0 = ไคลเอนต์ใช้ 60 วิ; ไม่ใช่ค่าเดียวกับพรมแดง */
+    jumpSurviveMissionTimeSec: 0,
+    /** รูปแพลตฟอร์ม jump_survive ช่อง 1–3 — ว่าง = ไคลเอนต์วาด cyan; w/h 0 = ใช้ขนาดไทล์ */
+    jumpSurvivePlatformTiles: [
+      { url: '', w: 0, h: 0 },
+      { url: '', w: 0, h: 0 },
+      { url: '', w: 0, h: 0 },
+    ],
+    /** Stack ภารกิจ Tower (mnn93hpi): จำกัดเวลารอบ (วินาที) — ไคลเอนต์ใช้เมื่อเล่นภารกิจ */
+    stackTowerMissionTimeSec: 90,
+    /** Stack ภารกิจ Tower: ทีมพลาดได้กี่ครั้งก่อนจบ (ไม่รีเซ็ตหอ) */
+    stackTeamMissesMax: 3,
+    /** Stack ภารกิจ Tower: จำนวนชั้นสำเร็จ (ไม่คิดคอมโบ) ที่รวมแล้วได้ Progress 100% — แต่ละชั้น +100/N %; คอมโบ ×2 ของชั้นนั้น */
+    stackTowerProgressBlocks: 50,
+    stackBlockNormalImageUrls: ['', '', '', '', '', ''],
+    stackBlockHeavyImageUrls: ['', '', '', '', '', ''],
+    /** โอกาสใช้รูป “ใหญ่” ต่อการปล่อยหนึ่งครั้ง (0–100) — ถ้าไม่มี URL ใหญ่ช่องนั้น = ใช้ปกติ */
+    stackHeavyBlockPercent: 35,
+    /** ยิงยานอวกาศ / space_shooter: จำกัดเวลารอบ (วินาที) — 0 = ไคลเอนต์ใช้ค่าเริ่ม 90; แมป spaceShooterTimeSec > 0 ทับ */
+    spaceShooterMissionTimeSec: 0,
+    spaceShooterShipImageUrls: ['', '', '', '', '', ''],
+    spaceShooterAsteroidSpriteUrls: [],
+    spaceShooterAsteroidExplodeFrameMs: 70,
+    /** ระยะห่างเกิดอุกาบาต (ms) — ค่าน้อย = ถี่ขึ้น; แมป spaceShooterAsteroidIntervalMs ≥200 ทับ */
+    spaceShooterAsteroidIntervalMs: 1040,
+    spaceShooterShipDamageOverlayUrls: ['', '', ''],
+    /** balloon_boss / Mega Virus — 0 = ไคลเอนต์ใช้ 120 วิเมื่อแมปไม่ตั้ง balloonBossTimeSec */
+    balloonBossMissionTimeSec: 0,
+    balloonBossBossImageUrl: '',
+    balloonBossPlayerBalloonImageUrls: ['', '', '', '', '', ''],
+    /** กรอบฟองรอบผู้เล่น / ลูกโป่ง fallback เริ่มต้น — Artboard 9 (วง cyan +หาง) */
+    balloonBossPlayerBalloonFallbackUrl: '/Game/img/MegaVirus/Artboard 9.png',
+  };
+}
+
+function clampStackSwingHz(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return STACK_SWING_HZ_DEFAULT;
+  return Math.max(0.08, Math.min(2.8, v));
+}
+
+/** ความกว้างบล็อก Stack เป็น tile — null = ให้ client คำนวณจากพื้นที่ลงบนแผนที่ */
+function clampStackBlockWidthTiles(n) {
+  if (n === null || n === undefined || n === '') return null;
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return null;
+  return Math.round(Math.max(0.85, Math.min(3.2, v)) * 100) / 100;
+}
+
+function clampStackTowerMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 90;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+function clampStackTeamMissesMax(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 3;
+  return Math.max(1, Math.min(20, Math.floor(v)));
+}
+
+function clampStackTowerProgressBlocks(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 50;
+  return Math.max(1, Math.min(500, Math.floor(v)));
+}
+
+/** Stack: รูปบล็อกต่อที่นั่ง 1–6 (ปกติ / ใหญ่) — ว่าง = ไคลเอนต์วาดสีเดิม */
+function normalizeStackBlockSixImageUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < 6; i++) {
+    out.push(sanitizeGauntletAssetUrl(arr[i]));
+  }
+  return out;
+}
+
+function clampStackHeavyBlockPercent(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 35;
+  return Math.max(0, Math.min(100, Math.floor(v)));
+}
+
+function clampJumpSurviveJumpHeightMult(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 1.5;
+  return Math.round(Math.max(0.5, Math.min(4, v)) * 100) / 100;
+}
+
+/** กระโดดขึ้นแท่น / ภารกิจ Jumper: จำกัดเวลารอบ (วินาที) — 0 = ไม่ตั้งในไฟล์ ให้ไคลเอนต์ใช้ค่าเริ่ม 60; ค่าอื่น = 10–7200 */
+function clampJumpSurviveMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+/** กระโดดให้รอด: รูปแพลตฟอร์ม 3 ช่อง — url ว่าง = ไคลเอนต์วาด cyan; w/h ≤0 = ใช้ขนาดไทล์ตอนรัน */
+function normalizeJumpSurvivePlatformTilesFromTiming(val, legacyTileUrl) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = [];
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const legacy = typeof legacyTileUrl === 'string' ? sanitizeGauntletAssetUrl(legacyTileUrl) : '';
+  const out = [];
+  for (let i = 0; i < 3; i++) {
+    const o = arr[i];
+    const obj = o && typeof o === 'object' ? o : {};
+    let url = sanitizeGauntletAssetUrl(typeof obj.url === 'string' ? obj.url : '');
+    if (i === 0 && !url && legacy) url = legacy;
+    let ww = Number(obj.w);
+    let hh = Number(obj.h);
+    if (!Number.isFinite(ww) || ww <= 0) ww = 0;
+    else ww = Math.max(8, Math.min(4096, Math.round(ww)));
+    if (!Number.isFinite(hh) || hh <= 0) hh = 0;
+    else hh = Math.max(8, Math.min(4096, Math.round(hh)));
+    out.push({ url, w: ww, h: hh });
+  }
+  return out;
+}
+
+function clampSpaceShooterMissionTimeSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+/** รูปยาน space_shooter ช่อง 1–6 (ตรงกับ spawn slot บนแมป) — ว่าง = ไคลเอนต์วาดยานเวกเตอร์ */
+function normalizeSpaceShooterShipImageUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < 6; i++) {
+    out.push(sanitizeGauntletAssetUrl(arr[i]));
+  }
+  return out;
+}
+
+/** อุกาบาต space_shooter: บรรทัดแรก = ตอนตก, ถัดไป = เฟรมแตก (สูงสุด 32 URL) */
+function normalizeSpaceShooterAsteroidSpriteUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = [];
+  for (let i = 0; i < arr.length && out.length < 32; i++) {
+    const u = sanitizeGauntletAssetUrl(arr[i]);
+    if (u) out.push(u);
+  }
+  return out;
+}
+
+function clampSpaceShooterAsteroidExplodeFrameMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 70;
+  return Math.max(30, Math.min(500, Math.round(v)));
+}
+
+const SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT = 1040;
+function clampSpaceShooterAsteroidIntervalMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT;
+  return Math.max(200, Math.min(10000, Math.floor(v)));
+}
+
+/** รูปทับยานเมื่อชนอุกาบาต ครั้งที่ 1–3 (ภารกิจ Violent Crime) */
+function normalizeSpaceShooterShipDamageOverlayUrls(val) {
+  let arr = val;
+  if (typeof arr === 'string') {
+    try {
+      const p = JSON.parse(arr);
+      if (Array.isArray(p)) arr = p;
+    } catch (e) {
+      arr = arr.split(/[\n\r]+/);
+    }
+  }
+  if (!Array.isArray(arr)) arr = [];
+  const out = ['', '', ''];
+  for (let i = 0; i < 3; i++) {
+    out[i] = sanitizeGauntletAssetUrl(arr[i]);
+  }
+  return out;
+}
+
+function clampGauntletTickMs(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return GAUNTLET_DEFAULT_TICK_MS;
+  return Math.max(80, Math.min(800, Math.floor(v)));
+}
+
+function clampGauntletJumpTicks(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return GAUNTLET_DEFAULT_JUMP_TICKS;
+  return Math.max(4, Math.min(40, Math.floor(v)));
+}
+
+/** 0 = ไม่จำกัดเวลา · ค่าอื่น = วินาที (สูงสุด 2 ชม.) */
+function clampGauntletTimeLimitSec(n) {
+  const v = Number(n);
+  if (Number.isNaN(v) || v <= 0) return 0;
+  return Math.max(10, Math.min(7200, Math.floor(v)));
+}
+
+function defaultGauntletVisuals() {
+  return {
+    gauntletLaneImageUrls: [],
+    gauntletLaserTopUrl: '',
+    gauntletLaserBottomUrl: '',
+    gauntletLaserLineUrl: '',
+    gauntletLaserFillColor: 'rgba(140,230,255,0.42)',
+    gauntletLaserStrokeColor: 'rgba(255,220,255,0.9)',
+    gauntletLaserLineWidthPx: 2,
+  };
+}
+
+/** ช่องว่างใน path (เช่น Artboard 9.png) — encode เป็น %20 ให้ nginx/เบราว์เซอร์โหลดได้ */
+function encodeSpacesInAssetUrlPath(t) {
+  const s = String(t || '');
+  const q = s.indexOf('?');
+  const pathPart = q === -1 ? s : s.slice(0, q);
+  const query = q === -1 ? '' : s.slice(q);
+  return pathPart.replace(/ /g, '%20') + query;
+}
+
+/** รูปเสิร์ฟที่ `/Game/img/...` (alias ไป `public/img`) — อย่าใส่ `/Game/public/img/` จาก path บนดิสก์ */
+function normalizeGameAssetUrlForWeb(t) {
+  let s = String(t || '');
+  s = s.replace(/^\/Game\/public\/img\//i, '/Game/img/');
+  s = s.replace(/^Game\/public\/img\//i, 'Game/img/');
+  return s;
+}
+
+/** ลด %2520 → %20 → space (สูงสุด 2 รอบ) — กันเข้ารหัสซ้ำจากบันทึก/คัดลอก URL */
+function decodeAssetUrlPercentRuns(t) {
+  let s = String(t || '');
+  const q = s.indexOf('?');
+  let base = q === -1 ? s : s.slice(0, q);
+  const query = q === -1 ? '' : s.slice(q);
+  for (let i = 0; i < 2; i += 1) {
+    try {
+      const d = decodeURIComponent(base);
+      if (d === base) break;
+      base = d;
+    } catch (e) {
+      break;
+    }
+  }
+  return base + query;
+}
+
+/** ช่อง Admin มักใส่แค่ …/Artboard ลืม 9.png — ชี้ไป Artboard%209.png */
+function fixBareMegaVirusArtboardUrl(t) {
+  const s = String(t || '').trim().replace(/\/+$/, '');
+  if (/^\/Game\/img\/MegaVirus\/Artboard$/i.test(s)) return '/Game/img/MegaVirus/Artboard%209.png';
+  if (/^Game\/img\/MegaVirus\/Artboard$/i.test(s)) return '/Game/img/MegaVirus/Artboard%209.png';
+  return t;
+}
+
+function sanitizeGauntletAssetUrl(s) {
+  const t = fixBareMegaVirusArtboardUrl(
+    normalizeGameAssetUrlForWeb(decodeAssetUrlPercentRuns(String(s || '').trim())).replace(/\/+$/, '')
+  );
+  if (!t || t.length > 500) return '';
+  /** ห้ามแท็บ/บรรทัดใหม่/ตัวอักษรอันตราย — อนุญาตช่องว่าง (U+0020) ในชื่อไฟล์ */
+  if (/[\t\n\r\x00-\x08\x0b\x0c\x0e-\x1f<>"'`]/.test(t)) return '';
+  /** placeholder จาก Admin เช่น /Game/img/....png — ไม่ใช่ path จริง */
+  if (/\.{4,}/.test(t)) return '';
+  if (/^https?:\/\//i.test(t)) return encodeSpacesInAssetUrlPath(t);
+  if (t.startsWith('/')) return encodeSpacesInAssetUrlPath(t);
+  /** Admin มักใส่แบบไม่มี slash นำหน้า — ให้เทียบเท่า /Game/... บน nginx */
+  if (/^Game\//i.test(t)) return encodeSpacesInAssetUrlPath(`/${t.replace(/^\/+/, '')}`);
+  return '';
+}
+
+function clampGauntletLaserColor(s, def) {
+  const t = String(s || '').trim().slice(0, 100);
+  if (!t) return def;
+  if (/[<>"'`]/.test(t)) return def;
+  return t;
+}
+
+function clampGauntletLaserLineWidthPx(n) {
+  const v = Number(n);
+  if (Number.isNaN(v)) return 2;
+  return Math.max(0, Math.min(24, Math.round(v)));
+}
+
+function normalizeGauntletVisualsFromRequest(d) {
+  const def = defaultGauntletVisuals();
+  if (!d || typeof d !== 'object') return { ...def };
+  let laneArr = d.gauntletLaneImageUrls;
+  if (typeof laneArr === 'string') laneArr = laneArr.split(/[\n\r]+/);
+  if (!Array.isArray(laneArr)) laneArr = [];
+  const gauntletLaneImageUrls = [];
+  for (let i = 0; i < laneArr.length && gauntletLaneImageUrls.length < 24; i++) {
+    const u = sanitizeGauntletAssetUrl(laneArr[i]);
+    if (u) gauntletLaneImageUrls.push(u);
+  }
+  return {
+    gauntletLaneImageUrls,
+    gauntletLaserTopUrl: sanitizeGauntletAssetUrl(d.gauntletLaserTopUrl),
+    gauntletLaserBottomUrl: sanitizeGauntletAssetUrl(d.gauntletLaserBottomUrl),
+    gauntletLaserLineUrl: sanitizeGauntletAssetUrl(d.gauntletLaserLineUrl),
+    gauntletLaserFillColor: clampGauntletLaserColor(d.gauntletLaserFillColor, def.gauntletLaserFillColor),
+    gauntletLaserStrokeColor: clampGauntletLaserColor(d.gauntletLaserStrokeColor, def.gauntletLaserStrokeColor),
+    gauntletLaserLineWidthPx: clampGauntletLaserLineWidthPx(d.gauntletLaserLineWidthPx),
+  };
+}
+
+function getGauntletVisualsForClient() {
+  const r = runtimeGameTiming;
+  const d = defaultGauntletVisuals();
+  return {
+    gauntletLaneImageUrls: Array.isArray(r.gauntletLaneImageUrls) ? r.gauntletLaneImageUrls : d.gauntletLaneImageUrls,
+    gauntletLaserTopUrl: r.gauntletLaserTopUrl || '',
+    gauntletLaserBottomUrl: r.gauntletLaserBottomUrl || '',
+    gauntletLaserLineUrl: r.gauntletLaserLineUrl || '',
+    gauntletLaserFillColor: r.gauntletLaserFillColor != null ? r.gauntletLaserFillColor : d.gauntletLaserFillColor,
+    gauntletLaserStrokeColor: r.gauntletLaserStrokeColor != null ? r.gauntletLaserStrokeColor : d.gauntletLaserStrokeColor,
+    gauntletLaserLineWidthPx: r.gauntletLaserLineWidthPx != null ? r.gauntletLaserLineWidthPx : d.gauntletLaserLineWidthPx,
+  };
+}
+
+function loadGameTiming() {
+  try {
+    if (fs.existsSync(GAME_TIMING_PATH)) {
+      const j = JSON.parse(fs.readFileSync(GAME_TIMING_PATH, 'utf8'));
+      const vis = normalizeGauntletVisualsFromRequest(j);
+      return {
+        gauntletTickMs: clampGauntletTickMs(j.gauntletTickMs),
+        gauntletJumpTicks: clampGauntletJumpTicks(j.gauntletJumpTicks),
+        gauntletTimeLimitSec: clampGauntletTimeLimitSec(j.gauntletTimeLimitSec),
+        ...vis,
+        stackSwingHz: Object.prototype.hasOwnProperty.call(j, 'stackSwingHz')
+          ? clampStackSwingHz(j.stackSwingHz)
+          : STACK_SWING_HZ_DEFAULT,
+        stackBlockWidthTiles: Object.prototype.hasOwnProperty.call(j, 'stackBlockWidthTiles')
+          ? clampStackBlockWidthTiles(j.stackBlockWidthTiles)
+          : null,
+        stackTowerMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'stackTowerMissionTimeSec')
+          ? clampStackTowerMissionTimeSec(j.stackTowerMissionTimeSec)
+          : 90,
+        stackTeamMissesMax: Object.prototype.hasOwnProperty.call(j, 'stackTeamMissesMax')
+          ? clampStackTeamMissesMax(j.stackTeamMissesMax)
+          : 3,
+        stackTowerProgressBlocks: Object.prototype.hasOwnProperty.call(j, 'stackTowerProgressBlocks')
+          ? clampStackTowerProgressBlocks(j.stackTowerProgressBlocks)
+          : 50,
+        stackBlockNormalImageUrls: normalizeStackBlockSixImageUrls(j.stackBlockNormalImageUrls),
+        stackBlockHeavyImageUrls: normalizeStackBlockSixImageUrls(j.stackBlockHeavyImageUrls),
+        stackHeavyBlockPercent: Object.prototype.hasOwnProperty.call(j, 'stackHeavyBlockPercent')
+          ? clampStackHeavyBlockPercent(j.stackHeavyBlockPercent)
+          : 35,
+        jumpSurviveJumpHeightMult: Object.prototype.hasOwnProperty.call(j, 'jumpSurviveJumpHeightMult')
+          ? clampJumpSurviveJumpHeightMult(j.jumpSurviveJumpHeightMult)
+          : 1.5,
+        jumpSurviveMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'jumpSurviveMissionTimeSec')
+          ? clampJumpSurviveMissionTimeSec(j.jumpSurviveMissionTimeSec)
+          : 0,
+        jumpSurvivePlatformTiles: normalizeJumpSurvivePlatformTilesFromTiming(
+          j.jumpSurvivePlatformTiles,
+          j.jumpSurvivePlatformTileUrl,
+        ),
+        spaceShooterMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'spaceShooterMissionTimeSec')
+          ? clampSpaceShooterMissionTimeSec(j.spaceShooterMissionTimeSec)
+          : 0,
+        spaceShooterShipImageUrls: normalizeSpaceShooterShipImageUrls(j.spaceShooterShipImageUrls),
+        spaceShooterAsteroidSpriteUrls: normalizeSpaceShooterAsteroidSpriteUrls(j.spaceShooterAsteroidSpriteUrls),
+        spaceShooterAsteroidExplodeFrameMs: Object.prototype.hasOwnProperty.call(j, 'spaceShooterAsteroidExplodeFrameMs')
+          ? clampSpaceShooterAsteroidExplodeFrameMs(j.spaceShooterAsteroidExplodeFrameMs)
+          : 70,
+        spaceShooterAsteroidIntervalMs: Object.prototype.hasOwnProperty.call(j, 'spaceShooterAsteroidIntervalMs')
+          ? clampSpaceShooterAsteroidIntervalMs(j.spaceShooterAsteroidIntervalMs)
+          : SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT,
+        spaceShooterShipDamageOverlayUrls: normalizeSpaceShooterShipDamageOverlayUrls(j.spaceShooterShipDamageOverlayUrls),
+        balloonBossMissionTimeSec: Object.prototype.hasOwnProperty.call(j, 'balloonBossMissionTimeSec')
+          ? clampSpaceShooterMissionTimeSec(j.balloonBossMissionTimeSec)
+          : 0,
+        balloonBossBossImageUrl: Object.prototype.hasOwnProperty.call(j, 'balloonBossBossImageUrl')
+          ? sanitizeGauntletAssetUrl(j.balloonBossBossImageUrl)
+          : '',
+        balloonBossPlayerBalloonImageUrls: normalizeStackBlockSixImageUrls(j.balloonBossPlayerBalloonImageUrls),
+        balloonBossPlayerBalloonFallbackUrl: Object.prototype.hasOwnProperty.call(j, 'balloonBossPlayerBalloonFallbackUrl')
+          ? sanitizeGauntletAssetUrl(j.balloonBossPlayerBalloonFallbackUrl)
+          : '',
+      };
+    }
+  } catch (e) { console.error('loadGameTiming', e.message); }
+  return defaultGameTiming();
+}
+
+let runtimeGameTiming = loadGameTiming();
+
+function getGauntletTickMs() {
+  return runtimeGameTiming.gauntletTickMs;
+}
+
+function getGauntletJumpTicks() {
+  return runtimeGameTiming.gauntletJumpTicks;
+}
+
+function getGauntletTimeLimitSec() {
+  return runtimeGameTiming.gauntletTimeLimitSec || 0;
+}
+
+function saveGameTimingToFile(d) {
+  try {
+    const dir = path.dirname(GAME_TIMING_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    const prev = { ...runtimeGameTiming };
+    const vis = normalizeGauntletVisualsFromRequest(d);
+    const stackHz = Object.prototype.hasOwnProperty.call(d, 'stackSwingHz')
+      ? clampStackSwingHz(d.stackSwingHz)
+      : clampStackSwingHz(prev.stackSwingHz != null ? prev.stackSwingHz : STACK_SWING_HZ_DEFAULT);
+    const stackBlockW = Object.prototype.hasOwnProperty.call(d, 'stackBlockWidthTiles')
+      ? clampStackBlockWidthTiles(d.stackBlockWidthTiles)
+      : (Object.prototype.hasOwnProperty.call(prev, 'stackBlockWidthTiles')
+        ? prev.stackBlockWidthTiles
+        : null);
+    const prevMult = Object.prototype.hasOwnProperty.call(prev, 'jumpSurviveJumpHeightMult')
+      ? prev.jumpSurviveJumpHeightMult
+      : 1.5;
+    const jumpMult = Object.prototype.hasOwnProperty.call(d, 'jumpSurviveJumpHeightMult')
+      ? clampJumpSurviveJumpHeightMult(d.jumpSurviveJumpHeightMult)
+      : clampJumpSurviveJumpHeightMult(prevMult);
+    const prevJumpMissionSec = Object.prototype.hasOwnProperty.call(prev, 'jumpSurviveMissionTimeSec')
+      ? prev.jumpSurviveMissionTimeSec
+      : 0;
+    const jumpMissionSec = Object.prototype.hasOwnProperty.call(d, 'jumpSurviveMissionTimeSec')
+      ? clampJumpSurviveMissionTimeSec(d.jumpSurviveMissionTimeSec)
+      : clampJumpSurviveMissionTimeSec(prevJumpMissionSec);
+    const prevJumpTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+      prev.jumpSurvivePlatformTiles,
+      prev.jumpSurvivePlatformTileUrl,
+    );
+    let jumpSurvivePlatformTiles;
+    if (Object.prototype.hasOwnProperty.call(d, 'jumpSurvivePlatformTiles')) {
+      jumpSurvivePlatformTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+        d.jumpSurvivePlatformTiles,
+        d.jumpSurvivePlatformTileUrl,
+      );
+    } else if (Object.prototype.hasOwnProperty.call(d, 'jumpSurvivePlatformTileUrl')) {
+      jumpSurvivePlatformTiles = normalizeJumpSurvivePlatformTilesFromTiming(
+        [
+          { url: d.jumpSurvivePlatformTileUrl, w: 0, h: 0 },
+          prevJumpTiles[1],
+          prevJumpTiles[2],
+        ],
+        '',
+      );
+    } else {
+      jumpSurvivePlatformTiles = prevJumpTiles;
+    }
+    const prevSpaceShooterMissionSec = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterMissionTimeSec')
+      ? prev.spaceShooterMissionTimeSec
+      : 0;
+    const spaceShooterMissionSec = Object.prototype.hasOwnProperty.call(d, 'spaceShooterMissionTimeSec')
+      ? clampSpaceShooterMissionTimeSec(d.spaceShooterMissionTimeSec)
+      : clampSpaceShooterMissionTimeSec(prevSpaceShooterMissionSec);
+    const prevShipUrls = Array.isArray(prev.spaceShooterShipImageUrls)
+      ? normalizeSpaceShooterShipImageUrls(prev.spaceShooterShipImageUrls)
+      : normalizeSpaceShooterShipImageUrls([]);
+    const spaceShooterShipImageUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterShipImageUrls')
+      ? normalizeSpaceShooterShipImageUrls(d.spaceShooterShipImageUrls)
+      : prevShipUrls;
+    const prevAstUrls = Array.isArray(prev.spaceShooterAsteroidSpriteUrls)
+      ? normalizeSpaceShooterAsteroidSpriteUrls(prev.spaceShooterAsteroidSpriteUrls)
+      : [];
+    const spaceShooterAsteroidSpriteUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidSpriteUrls')
+      ? normalizeSpaceShooterAsteroidSpriteUrls(d.spaceShooterAsteroidSpriteUrls)
+      : prevAstUrls;
+    const prevAstFms = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterAsteroidExplodeFrameMs')
+      ? prev.spaceShooterAsteroidExplodeFrameMs
+      : 70;
+    const spaceShooterAsteroidExplodeFrameMs = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidExplodeFrameMs')
+      ? clampSpaceShooterAsteroidExplodeFrameMs(d.spaceShooterAsteroidExplodeFrameMs)
+      : clampSpaceShooterAsteroidExplodeFrameMs(prevAstFms);
+    const prevAstIv = Object.prototype.hasOwnProperty.call(prev, 'spaceShooterAsteroidIntervalMs')
+      ? prev.spaceShooterAsteroidIntervalMs
+      : SPACE_SHOOTER_ASTEROID_INTERVAL_MS_DEFAULT;
+    const spaceShooterAsteroidIntervalMs = Object.prototype.hasOwnProperty.call(d, 'spaceShooterAsteroidIntervalMs')
+      ? clampSpaceShooterAsteroidIntervalMs(d.spaceShooterAsteroidIntervalMs)
+      : clampSpaceShooterAsteroidIntervalMs(prevAstIv);
+    const prevDmg = Array.isArray(prev.spaceShooterShipDamageOverlayUrls)
+      ? normalizeSpaceShooterShipDamageOverlayUrls(prev.spaceShooterShipDamageOverlayUrls)
+      : normalizeSpaceShooterShipDamageOverlayUrls([]);
+    const spaceShooterShipDamageOverlayUrls = Object.prototype.hasOwnProperty.call(d, 'spaceShooterShipDamageOverlayUrls')
+      ? normalizeSpaceShooterShipDamageOverlayUrls(d.spaceShooterShipDamageOverlayUrls)
+      : prevDmg;
+    const prevBbMission = Object.prototype.hasOwnProperty.call(prev, 'balloonBossMissionTimeSec')
+      ? prev.balloonBossMissionTimeSec
+      : 0;
+    const balloonBossMissionTimeSec = Object.prototype.hasOwnProperty.call(d, 'balloonBossMissionTimeSec')
+      ? clampSpaceShooterMissionTimeSec(d.balloonBossMissionTimeSec)
+      : clampSpaceShooterMissionTimeSec(prevBbMission);
+    const prevBbBoss = Object.prototype.hasOwnProperty.call(prev, 'balloonBossBossImageUrl')
+      ? sanitizeGauntletAssetUrl(prev.balloonBossBossImageUrl)
+      : '';
+    const balloonBossBossImageUrl = Object.prototype.hasOwnProperty.call(d, 'balloonBossBossImageUrl')
+      ? sanitizeGauntletAssetUrl(d.balloonBossBossImageUrl)
+      : prevBbBoss;
+    const prevBbBalloons = Array.isArray(prev.balloonBossPlayerBalloonImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.balloonBossPlayerBalloonImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const balloonBossPlayerBalloonImageUrls = Object.prototype.hasOwnProperty.call(d, 'balloonBossPlayerBalloonImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.balloonBossPlayerBalloonImageUrls)
+      : prevBbBalloons;
+    const prevBbFb = Object.prototype.hasOwnProperty.call(prev, 'balloonBossPlayerBalloonFallbackUrl')
+      ? sanitizeGauntletAssetUrl(prev.balloonBossPlayerBalloonFallbackUrl)
+      : '';
+    const balloonBossPlayerBalloonFallbackUrl = Object.prototype.hasOwnProperty.call(d, 'balloonBossPlayerBalloonFallbackUrl')
+      ? sanitizeGauntletAssetUrl(d.balloonBossPlayerBalloonFallbackUrl)
+      : prevBbFb;
+    const prevStackTowerSec = Object.prototype.hasOwnProperty.call(prev, 'stackTowerMissionTimeSec')
+      ? prev.stackTowerMissionTimeSec
+      : 90;
+    const stackTowerMissionTimeSec = Object.prototype.hasOwnProperty.call(d, 'stackTowerMissionTimeSec')
+      ? clampStackTowerMissionTimeSec(d.stackTowerMissionTimeSec)
+      : clampStackTowerMissionTimeSec(prevStackTowerSec);
+    const prevStackMisses = Object.prototype.hasOwnProperty.call(prev, 'stackTeamMissesMax')
+      ? prev.stackTeamMissesMax
+      : 3;
+    const stackTeamMissesMax = Object.prototype.hasOwnProperty.call(d, 'stackTeamMissesMax')
+      ? clampStackTeamMissesMax(d.stackTeamMissesMax)
+      : clampStackTeamMissesMax(prevStackMisses);
+    const prevStackProgBlocks = Object.prototype.hasOwnProperty.call(prev, 'stackTowerProgressBlocks')
+      ? prev.stackTowerProgressBlocks
+      : 50;
+    const stackTowerProgressBlocks = Object.prototype.hasOwnProperty.call(d, 'stackTowerProgressBlocks')
+      ? clampStackTowerProgressBlocks(d.stackTowerProgressBlocks)
+      : clampStackTowerProgressBlocks(prevStackProgBlocks);
+    const prevStackNorm = Array.isArray(prev.stackBlockNormalImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.stackBlockNormalImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const prevStackHeavy = Array.isArray(prev.stackBlockHeavyImageUrls)
+      ? normalizeStackBlockSixImageUrls(prev.stackBlockHeavyImageUrls)
+      : normalizeStackBlockSixImageUrls([]);
+    const stackBlockNormalImageUrls = Object.prototype.hasOwnProperty.call(d, 'stackBlockNormalImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.stackBlockNormalImageUrls)
+      : prevStackNorm;
+    const stackBlockHeavyImageUrls = Object.prototype.hasOwnProperty.call(d, 'stackBlockHeavyImageUrls')
+      ? normalizeStackBlockSixImageUrls(d.stackBlockHeavyImageUrls)
+      : prevStackHeavy;
+    const prevHeavyPct = Object.prototype.hasOwnProperty.call(prev, 'stackHeavyBlockPercent')
+      ? clampStackHeavyBlockPercent(prev.stackHeavyBlockPercent)
+      : 35;
+    const stackHeavyBlockPercent = Object.prototype.hasOwnProperty.call(d, 'stackHeavyBlockPercent')
+      ? clampStackHeavyBlockPercent(d.stackHeavyBlockPercent)
+      : prevHeavyPct;
+    const out = {
+      gauntletTickMs: clampGauntletTickMs(d.gauntletTickMs),
+      gauntletJumpTicks: clampGauntletJumpTicks(d.gauntletJumpTicks),
+      gauntletTimeLimitSec: clampGauntletTimeLimitSec(d.gauntletTimeLimitSec),
+      ...vis,
+      stackSwingHz: stackHz,
+      stackBlockWidthTiles: stackBlockW,
+      stackTowerMissionTimeSec,
+      stackTeamMissesMax,
+      stackTowerProgressBlocks,
+      stackBlockNormalImageUrls,
+      stackBlockHeavyImageUrls,
+      stackHeavyBlockPercent,
+      jumpSurviveJumpHeightMult: jumpMult,
+      jumpSurviveMissionTimeSec: jumpMissionSec,
+      jumpSurvivePlatformTiles,
+      spaceShooterMissionTimeSec: spaceShooterMissionSec,
+      spaceShooterShipImageUrls,
+      spaceShooterAsteroidSpriteUrls,
+      spaceShooterAsteroidExplodeFrameMs,
+      spaceShooterAsteroidIntervalMs,
+      spaceShooterShipDamageOverlayUrls,
+      balloonBossMissionTimeSec,
+      balloonBossBossImageUrl,
+      balloonBossPlayerBalloonImageUrls,
+      balloonBossPlayerBalloonFallbackUrl,
+    };
+    fs.writeFileSync(GAME_TIMING_PATH, JSON.stringify(out, null, 2), 'utf8');
+    runtimeGameTiming = out;
+    rescheduleAllGauntletTickers();
+    return { ok: true, ...out };
+  } catch (e) {
+    console.error('saveGameTimingToFile', e.message);
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') {
+      err = 'ไม่มีสิทธิ์เขียนไฟล์ game-timing.json (ให้ chown เป็น user ที่รันเกม เช่น www-data)';
+    } else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function migrateGauntletAssetsFromLegacyIfNeeded() {
+  try {
+    if (!fs.existsSync(GAUNTLET_ASSETS_DIR_LEGACY)) return;
+    if (!fs.existsSync(GAUNTLET_ASSETS_DIR)) fs.mkdirSync(GAUNTLET_ASSETS_DIR, { recursive: true });
+    const names = fs.readdirSync(GAUNTLET_ASSETS_DIR_LEGACY);
+    names.forEach((f) => {
+      if (!safeGauntletStoredFilename(f)) return;
+      const src = path.join(GAUNTLET_ASSETS_DIR_LEGACY, f);
+      const dest = path.join(GAUNTLET_ASSETS_DIR, f);
+      if (fs.existsSync(dest)) return;
+      try {
+        fs.copyFileSync(src, dest);
+        console.log('[gauntlet-assets] migrated', f, 'from data/ to public/img/gauntlet-assets/');
+      } catch (e) {
+        console.error('[gauntlet-assets] migrate failed', f, e && e.message);
+      }
+    });
+  } catch (e) {
+    console.error('migrateGauntletAssetsFromLegacyIfNeeded', e && e.message);
+  }
+}
+
+function ensureGauntletAssetsDir() {
+  if (!fs.existsSync(GAUNTLET_ASSETS_DIR)) fs.mkdirSync(GAUNTLET_ASSETS_DIR, { recursive: true });
+  migrateGauntletAssetsFromLegacyIfNeeded();
+}
+
+function loadGauntletAssetsMeta() {
+  try {
+    if (fs.existsSync(GAUNTLET_ASSETS_META_PATH)) {
+      const j = JSON.parse(fs.readFileSync(GAUNTLET_ASSETS_META_PATH, 'utf8'));
+      return j && typeof j === 'object' ? j : {};
+    }
+  } catch (e) { console.error('loadGauntletAssetsMeta', e.message); }
+  return {};
+}
+
+function saveGauntletAssetsMeta(meta) {
+  const dir = path.dirname(GAUNTLET_ASSETS_META_PATH);
+  if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+  fs.writeFileSync(GAUNTLET_ASSETS_META_PATH, JSON.stringify(meta, null, 2), 'utf8');
+}
+
+function safeGauntletStoredFilename(name) {
+  const base = path.basename(String(name || ''));
+  if (!/^gauntlet-[a-f0-9]{16}\.(png|jpg|jpeg|gif|webp)$/i.test(base)) return null;
+  return base;
+}
+
+function safeQuizCarryPlaqueStoredFilename(name) {
+  const base = path.basename(String(name || ''));
+  if (!/^qcarry-[a-f0-9]{16}\.(png|jpg|jpeg|gif|webp)$/i.test(base)) return null;
+  return base;
+}
+
+function ensureQuizCarryPlaqueAssetsDir() {
+  if (!fs.existsSync(QUIZ_CARRY_PLAQUE_ASSETS_DIR)) fs.mkdirSync(QUIZ_CARRY_PLAQUE_ASSETS_DIR, { recursive: true });
+}
+
+function gauntletAssetMimeByExt(ext) {
+  const e = String(ext || '').toLowerCase();
+  if (e === '.png') return 'image/png';
+  if (e === '.jpg' || e === '.jpeg') return 'image/jpeg';
+  if (e === '.gif') return 'image/gif';
+  if (e === '.webp') return 'image/webp';
+  return 'application/octet-stream';
+}
+
+function listGauntletAssetsApi() {
+  ensureGauntletAssetsDir();
+  const meta = loadGauntletAssetsMeta();
+  let files = [];
+  try {
+    files = fs.readdirSync(GAUNTLET_ASSETS_DIR);
+  } catch (e) {
+    return [];
+  }
+  return files
+    .filter((f) => safeGauntletStoredFilename(f))
+    .map((f) => {
+      const fp = path.join(GAUNTLET_ASSETS_DIR, f);
+      let st;
+      try {
+        st = fs.statSync(fp);
+      } catch (e) {
+        return null;
+      }
+      const entry = meta[f];
+      const label = entry && typeof entry.label === 'string' ? entry.label.slice(0, 120) : '';
+      return {
+        filename: f,
+        url: BASE_PATH + '/img/gauntlet-assets/' + f,
+        label: label || f,
+        bytes: st.size,
+        mtime: st.mtimeMs,
+      };
+    })
+    .filter(Boolean)
+    .sort((a, b) => b.mtime - a.mtime);
+}
+
+function saveQuizSettings(d) {
+  try {
+    const prev = loadQuizSettings();
+    const dir = path.dirname(QUIZ_SETTINGS_PATH);
+    if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+    const readMs = d.readMs != null ? clampQuizMs(d.readMs, prev.readMs) : prev.readMs;
+    const answerMs = d.answerMs != null ? clampQuizMs(d.answerMs, prev.answerMs) : prev.answerMs;
+    const betweenMs = d.betweenMs != null ? clampQuizBetweenMs(d.betweenMs, prev.betweenMs) : prev.betweenMs;
+    const carryReadMs = d.carryReadMs != null ? clampQuizBetweenMs(d.carryReadMs, prev.carryReadMs) : prev.carryReadMs;
+    const carryAnswerMs = d.carryAnswerMs != null ? clampQuizMs(d.carryAnswerMs, prev.carryAnswerMs) : prev.carryAnswerMs;
+    const carrySessionLength = d.carrySessionLength != null
+      ? clampCarrySessionLength(d.carrySessionLength, prev.carrySessionLength)
+      : prev.carrySessionLength;
+    const questions = Array.isArray(d.questions)
+      ? (d.questions || [])
+        .filter((q) => q && String(q.text || '').trim())
+        .map((q) => ({ text: String(q.text).trim(), answerTrue: !!q.answerTrue }))
+      : prev.questions;
+    const carryQuestions = Array.isArray(d.carryQuestions)
+      ? sanitizeCarryQuestions(d.carryQuestions)
+      : prev.carryQuestions;
+    const battleQuizMcq = Array.isArray(d.battleQuizMcq)
+      ? sanitizeBattleQuizMcq(d.battleQuizMcq)
+      : (prev.battleQuizMcq || []);
+    const carryMapPanelTheme = d.carryMapPanelTheme != null && typeof d.carryMapPanelTheme === 'object'
+      ? sanitizeCarryMapPanelTheme(d.carryMapPanelTheme)
+      : prev.carryMapPanelTheme;
+    const quizMapPanelTheme = d.quizMapPanelTheme != null && typeof d.quizMapPanelTheme === 'object'
+      ? sanitizeCarryMapPanelTheme(d.quizMapPanelTheme)
+      : prev.quizMapPanelTheme;
+    const carryEmbedCountdownTheme = d.carryEmbedCountdownTheme != null && typeof d.carryEmbedCountdownTheme === 'object'
+      ? sanitizeCarryEmbedCountdownTheme(d.carryEmbedCountdownTheme)
+      : prev.carryEmbedCountdownTheme;
+    let carryChoicePlaqueThemes = prev.carryChoicePlaqueThemes;
+    if (Array.isArray(d.carryChoicePlaqueThemes) && d.carryChoicePlaqueThemes.length) {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(d.carryChoicePlaqueThemes);
+    } else if (d.carryChoicePlaqueTheme != null && typeof d.carryChoicePlaqueTheme === 'object') {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(d.carryChoicePlaqueTheme);
+    }
+    if (!Array.isArray(carryChoicePlaqueThemes) || !carryChoicePlaqueThemes.length) {
+      carryChoicePlaqueThemes = sanitizeCarryChoicePlaqueThemes(prev.carryChoicePlaqueTheme);
+    }
+    const carryChoicePlaqueTheme = carryChoicePlaqueThemes[0];
+    const prevScale = prev.carryChoicePlaqueMapScale != null
+      ? clampCarryChoicePlaqueMapScale(prev.carryChoicePlaqueMapScale, 1.25)
+      : 1.25;
+    const carryChoicePlaqueMapScale = d.carryChoicePlaqueMapScale != null
+      ? clampCarryChoicePlaqueMapScale(d.carryChoicePlaqueMapScale, prevScale)
+      : prevScale;
+    const prevWalkId = sanitizeCarryWalkSpeedMultForMapId(prev.carryWalkSpeedMultForMapId);
+    const prevWalkMult = prev.carryWalkSpeedMult != null ? clampCarryWalkSpeedMultSetting(prev.carryWalkSpeedMult) : null;
+    let carryWalkSpeedMultForMapId = d.carryWalkSpeedMultForMapId !== undefined
+      ? sanitizeCarryWalkSpeedMultForMapId(d.carryWalkSpeedMultForMapId)
+      : prevWalkId;
+    let carryWalkSpeedMult = d.carryWalkSpeedMult !== undefined ? clampCarryWalkSpeedMultSetting(d.carryWalkSpeedMult) : prevWalkMult;
+    if (!carryWalkSpeedMultForMapId) {
+      carryWalkSpeedMult = null;
+    } else if (carryWalkSpeedMult == null) {
+      carryWalkSpeedMult = clampCarryWalkSpeedMultSetting(1.42);
+    }
+    const quizRoundQuestionCount = d.quizRoundQuestionCount != null
+      ? clampQuizRoundQuestionCount(d.quizRoundQuestionCount, prev.quizRoundQuestionCount)
+      : prev.quizRoundQuestionCount;
+    const specialQuizSets = d.specialQuizSets != null
+      ? sanitizeSpecialQuizSets(d.specialQuizSets)
+      : sanitizeSpecialQuizSets(prev.specialQuizSets);
+    const out = {
+      readMs,
+      answerMs,
+      betweenMs,
+      carryReadMs,
+      carryAnswerMs,
+      carrySessionLength,
+      carryMapPanelTheme,
+      quizMapPanelTheme,
+      carryEmbedCountdownTheme,
+      carryChoicePlaqueThemes,
+      carryChoicePlaqueTheme,
+      carryChoicePlaqueMapScale,
+      carryWalkSpeedMultForMapId,
+      carryWalkSpeedMult,
+      quizRoundQuestionCount,
+      questions,
+      carryQuestions,
+      battleQuizMcq,
+      specialQuizSets,
+    };
+    fs.writeFileSync(QUIZ_SETTINGS_PATH, JSON.stringify(out, null, 2), 'utf8');
+    return {
+      ok: true,
+      battleQuizMcqSaved: (out.battleQuizMcq || []).length,
+      carryQuestionsSaved: (out.carryQuestions || []).length,
+      specialQuizSets: out.specialQuizSets,
+      carryMapPanelTheme: out.carryMapPanelTheme,
+      quizMapPanelTheme: out.quizMapPanelTheme,
+      carryEmbedCountdownTheme: out.carryEmbedCountdownTheme,
+      carryChoicePlaqueThemes: out.carryChoicePlaqueThemes,
+      carryChoicePlaqueTheme: out.carryChoicePlaqueTheme,
+      carryChoicePlaqueMapScale: out.carryChoicePlaqueMapScale,
+    };
+  } catch (e) {
+    console.error('saveQuizSettings', e.message);
+    let err = 'บันทึกไม่ได้';
+    if (e && e.code === 'EACCES') {
+      err = 'ไม่มีสิทธิ์เขียนไฟล์ quiz-settings.json (ให้ chown เป็น user ที่รันเกม เช่น www-data)';
+    } else if (e && e.message) err = 'บันทึกไม่ได้: ' + e.message;
+    return { ok: false, error: err };
+  }
+}
+
+function getQuizQuestionPool(md) {
+  const g = loadQuizSettings();
+  const globalQ = (g.questions || []).filter((q) => q && String(q.text || '').trim());
+  if (globalQ.length) return globalQ;
+  return (md.quizQuestions || []).filter((q) => q && String(q.text || '').trim());
+}
+
+function quizCellOn(grid, tx, ty) {
+  return !!(grid && grid[ty] && grid[ty][tx] === 1);
+}
+
+function getCharacterFootprintWHForMove(md) {
+  let cw = Math.floor(Number(md.characterCellsW));
+  let ch = Math.floor(Number(md.characterCellsH));
+  const hasW = Number.isFinite(cw) && cw >= 1;
+  const hasH = Number.isFinite(ch) && ch >= 1;
+  if (hasW && hasH) {
+    return { cw: Math.max(1, Math.min(4, cw)), ch: Math.max(1, Math.min(4, ch)) };
+  }
+  const leg = Math.max(1, Math.min(4, Math.floor(Number(md.characterCells)) || 1));
+  return { cw: leg, ch: leg };
+}
+
+function getCharacterCollisionFootprintWHForMove(md) {
+  const { cw, ch } = getCharacterFootprintWHForMove(md);
+  let colW = Math.floor(Number(md.characterCollisionW));
+  let colH = Math.floor(Number(md.characterCollisionH));
+  if (!Number.isFinite(colW) || colW < 1) colW = cw;
+  if (!Number.isFinite(colH) || colH < 1) colH = ch;
+  colW = Math.max(1, Math.min(cw, colW));
+  colH = Math.max(1, Math.min(ch, colH));
+  return { cw, ch, colW, colH };
+}
+
+function serverWallCollisionTileKeys(md, px, py) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const { cw, ch, colW, colH } = getCharacterCollisionFootprintWHForMove(md);
+  const minTx = Math.floor(Number(px));
+  const minTy = Math.floor(Number(py));
+  const offX = minTx + Math.floor((cw - colW) / 2);
+  const offY = minTy + (ch - colH);
+  const out = [];
+  for (let ty = offY; ty < offY + colH; ty++) {
+    for (let tx = offX; tx < offX + colW; tx++) {
+      if (tx >= 0 && ty >= 0 && tx < w && ty < h) out.push(`${tx},${ty}`);
+    }
+  }
+  return out;
+}
+
+function quizCarryFootprintTileKeys(md, px, py) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const { cw, ch } = getCharacterFootprintWHForMove(md);
+  const minTx = Math.floor(Number(px));
+  const minTy = Math.floor(Number(py));
+  const maxTx = Math.min(w - 1, minTx + cw - 1);
+  const maxTy = Math.min(h - 1, minTy + ch - 1);
+  const out = [];
+  for (let ty = minTy; ty <= maxTy; ty++) {
+    for (let tx = minTx; tx <= maxTx; tx++) {
+      if (tx >= 0 && ty >= 0) out.push(`${tx},${ty}`);
+    }
+  }
+  return out;
+}
+
+function quizCarryFootprintOverlapsHubServer(md, px, py) {
+  if (!md || !md.quizCarryHubArea || md.gameType !== 'quiz_carry') return false;
+  for (const k of quizCarryFootprintTileKeys(md, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (quizCellOn(md.quizCarryHubArea, tx, ty)) return true;
+  }
+  return false;
+}
+
+/** Nearest walkable tile center not in true/false answer zones (BFS). */
+function findNearestOutsideQuizAnswerZones(md, sx, sy) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const tGrid = md.quizTrueArea || [];
+  const fGrid = md.quizFalseArea || [];
+  const inAnswer = (x, y) => quizCellOn(tGrid, x, y) || quizCellOn(fGrid, x, y);
+  const walkable = (x, y) => {
+    if (x < 0 || x >= w || y < 0 || y >= h) return false;
+    const row = md.objects && md.objects[y];
+    return row && row[x] !== 1;
+  };
+  const fx = Math.floor(Number(sx));
+  const fy = Math.floor(Number(sy));
+  if (!walkable(fx, fy)) {
+    const sp = md.spawn || { x: 1, y: 1 };
+    return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+  }
+  if (!inAnswer(fx, fy)) return { x: sx, y: sy };
+  const q = [[fx, fy]];
+  const seen = new Set([`${fx},${fy}`]);
+  const dirs = [[0, 1], [0, -1], [1, 0], [-1, 0]];
+  while (q.length) {
+    const [cx, cy] = q.shift();
+    for (let di = 0; di < dirs.length; di++) {
+      const nx = cx + dirs[di][0];
+      const ny = cy + dirs[di][1];
+      const k = `${nx},${ny}`;
+      if (seen.has(k)) continue;
+      if (!walkable(nx, ny)) continue;
+      seen.add(k);
+      if (!inAnswer(nx, ny)) {
+        return { x: nx + 0.5, y: ny + 0.5 };
+      }
+      q.push([nx, ny]);
+    }
+  }
+  const sp = md.spawn || { x: 1, y: 1 };
+  return { x: (typeof sp.x === 'number' ? sp.x : 1) + 0.5, y: (typeof sp.y === 'number' ? sp.y : 1) + 0.5 };
+}
+
+function validateQuizMap(md) {
+  const pool = getQuizQuestionPool(md);
+  if (pool.length < 1) {
+    return 'เพิ่มคำถามใน Admin แท็บ «คำถามเกม» (หรือบันทึกคำถามในฉากแบบเก่าเป็นสำรอง)';
+  }
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const tGrid = md.quizTrueArea || [];
+  const fGrid = md.quizFalseArea || [];
+  let anyT = false;
+  let anyF = false;
+  for (let y = 0; y < h; y++) {
+    for (let x = 0; x < w; x++) {
+      if (quizCellOn(tGrid, x, y)) anyT = true;
+      if (quizCellOn(fGrid, x, y)) anyF = true;
+    }
+  }
+  if (!anyT || !anyF) return 'วาดโซนคำตอบ ถูก และ ผิด อย่างน้อยช่องละ 1';
+  return null;
+}
+
+function clearSpaceQuizTimers(space) {
+  if (!space.quizTimers || !Array.isArray(space.quizTimers)) {
+    space.quizTimers = [];
+    return;
+  }
+  space.quizTimers.forEach((t) => clearTimeout(t));
+  space.quizTimers = [];
+}
+
+/** หยุดรอบ quiz (mng8a80o) ชั่วคราวระหว่างตอบคำถามพิเศษ — เก็บเวลาที่เหลือไว้ */
+function pauseQuizForSpecialQuiz(sid, space) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active || space.quizFrozenForSpecial) return;
+  const phase = sess.phase;
+  if (phase !== 'read' && phase !== 'answer') return;
+  const remaining = Math.max(0, (Number(sess.phaseEndsAt) || 0) - Date.now());
+  space.quizFrozenForSpecial = true;
+  space.quizFreezePhase = phase;
+  space.quizFreezeRemainingMs = remaining;
+  clearSpaceQuizTimers(space);
+  io.to(sid).emit('quiz-paused', { phase });
+}
+
+/** เล่นรอบ quiz ต่อหลังตอบคำถามพิเศษเสร็จ — ตั้ง timer ใหม่ด้วยเวลาที่เหลือ */
+function resumeQuizAfterSpecialQuiz(sid, space) {
+  if (!space.quizFrozenForSpecial) return;
+  space.quizFrozenForSpecial = false;
+  const sess = space.quizSession;
+  const phase = space.quizFreezePhase;
+  const remaining = Math.max(1200, Number(space.quizFreezeRemainingMs) || 0);
+  space.quizFreezePhase = null;
+  space.quizFreezeRemainingMs = 0;
+  if (!sess || !sess.active) return;
+  const md = sess.quizMapMd || getLobbyLayoutMapForSpace(space);
+  if (!md) return;
+  /* Time Dilation: +N วิให้รอบ quiz (mng8a80o) ตอน resume */
+  let extraMs = 0;
+  if (space.timeDilationPendingSec > 0) {
+    extraMs = space.timeDilationPendingSec * 1000;
+    space.timeDilationPendingSec = 0;
+  }
+  sess.phaseEndsAt = Date.now() + remaining + extraMs;
+  if (phase === 'read') {
+    sess.phase = 'read';
+    const q = sess.questions[sess.qIndex];
+    io.to(sid).emit('quiz-phase', {
+      phase: 'read',
+      questionIndex: sess.qIndex + 1,
+      questionTotal: sess.questions.length,
+      text: String((q && q.text) || '').trim(),
+      endsAt: sess.phaseEndsAt,
+      resumed: true,
+    });
+    const t = setTimeout(() => scheduleQuizAnswerPhase(sid, space, md), remaining);
+    space.quizTimers.push(t);
+  } else {
+    sess.phase = 'answer';
+    io.to(sid).emit('quiz-phase', {
+      phase: 'answer',
+      questionIndex: sess.qIndex + 1,
+      questionTotal: sess.questions.length,
+      endsAt: sess.phaseEndsAt,
+      resumed: true,
+    });
+    const t = setTimeout(() => resolveQuizRound(sid, space, md), remaining);
+    space.quizTimers.push(t);
+  }
+}
+
+/** เกมถูก/ผิด: คะแนนต่อข้อที่ตอบถูก (ตรงกับ client + เอฟเฟกต์ score+.png) */
+const QUIZ_TF_POINTS_PER_CORRECT = 10;
+
+function shuffleQuizQuestions(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+function ensurePeerLobbyThemes(space) {
+  if (!space || !space.peers) return;
+  const seen = new Set();
+  space.peers.forEach((p, id) => {
+    let ti = parseInt(p.lobbyColorThemeIndex, 10);
+    if (!(ti >= 1 && ti <= LOBBY_THEME_COUNT) || seen.has(ti)) {
+      ti = pickFreeLobbyThemeIndex(space, id);
+      p.lobbyColorThemeIndex = ti;
+    }
+    seen.add(ti);
+    if (!parseInt(p.lobbySkinToneIndex, 10) || p.lobbySkinToneIndex < 1 || p.lobbySkinToneIndex > LOBBY_SKIN_COUNT) {
+      p.lobbySkinToneIndex = pickLobbySkinIndexForSlot(p.spawnJoinOrder || 0);
+    }
+  });
+}
+
+function buildPeersSnapForSpace(space, extraFields) {
+  return [...space.peers.values()].map((p) => {
+    const row = {
+      id: p.id,
+      x: p.x,
+      y: p.y,
+      direction: p.direction || 'down',
+      nickname: p.nickname,
+      ready: !!p.ready,
+      characterId: p.characterId ?? null,
+      lobbyColorThemeIndex: p.lobbyColorThemeIndex || null,
+      lobbySkinToneIndex: p.lobbySkinToneIndex || null,
+    };
+    if (extraFields && extraFields.gauntlet) {
+      row.gauntletJumpTicks = p.gauntletJumpTicks || 0;
+      row.gauntletScore = p.gauntletScore || 0;
+      row.gauntletEliminated = !!p.gauntletEliminated;
+    }
+    return row;
+  });
+}
+
+/** สุ่ม 3 minigame จาก pool 7 แบบ — เรียกครั้งเดียวตอนเข้า LobbyB (ล็อกบน space) */
+/** แมปเก่า (กบ frogger) → Minigame-2 Gauntlet ตาม Admin */
+function normalizeDetectiveCardEntry(entry) {
+  if (!entry) return entry;
+  const mid = entry.mapId != null ? String(entry.mapId).trim() : '';
+  if (mid === 'mlpecp2j' || entry.key === 'frogger') {
+    const gaunt = DETECTIVE_MINIGAME_POOL.find((e) => e.key === 'gauntlet');
+    if (gaunt && maps.has(gaunt.mapId)) {
+      const md = maps.get(gaunt.mapId);
+      return {
+        ...entry,
+        key: gaunt.key,
+        mapId: gaunt.mapId,
+        labelTh: gaunt.labelTh,
+        mapName: (md && md.name) || gaunt.mapId,
+        gameType: (md && md.gameType) || 'gauntlet',
+      };
+    }
+  }
+  return entry;
+}
+
+function assignDetectiveSuspectCardMinigames(space) {
+  const available = DETECTIVE_MINIGAME_POOL.filter((e) => maps.has(e.mapId));
+  const shuffled = shuffleQuizQuestions(available.length ? available : [{ key: 'quiz', mapId: SUSPECT_INVESTIGATION_QUIZ_MAP_ID, labelTh: 'QuestionGame' }]);
+  space.suspectCardMinigames = shuffled.slice(0, 3).map((entry, i) => {
+    const md = maps.get(entry.mapId);
+    return {
+      cardIndex: i,
+      key: entry.key,
+      mapId: entry.mapId,
+      labelTh: entry.labelTh,
+      mapName: (md && md.name) || entry.mapId,
+      gameType: (md && md.gameType) || '',
+    };
+  });
+  // ชุดการ์ดใหม่ = ล้างหลักฐานที่ผู้เล่นเก็บได้
+  space.playerEvidence = {};
+  // สุ่มคนร้ายตัวจริง 1 ใน 3 ใบ (เก็บฝั่ง server ไม่ส่งให้ client จนกว่าจะเปิดเผย)
+  space.culpritIndex = Math.floor(Math.random() * 3);
+  space.trialPhase = null;        // null | 'voting' | 'revealed'
+  space.trialVotes = {};          // socketId -> suspectIndex
+  space.trialScores = space.trialScores || {};
+}
+
+function ensureSpacePlayerEvidence(space) {
+  if (!space.playerEvidence || typeof space.playerEvidence !== 'object') space.playerEvidence = {};
+  if (!space.evidenceByNick || typeof space.evidenceByNick !== 'object') space.evidenceByNick = {};
+}
+
+/* แถวหลักฐานต่อผู้ต้องสงสัย = array ของ card object (ไม่จำกัดจำนวน) — กรอง element ที่ไม่ใช่การ์ดทิ้ง */
+function normalizeEvidenceSlotList(cards) {
+  if (!Array.isArray(cards)) return [];
+  const out = [];
+  for (let i = 0; i < cards.length; i++) {
+    const c = sanitizeStoredEvidenceCard(cards[i]);
+    if (c) out.push(c);
+  }
+  return out;
+}
+
+/** ดึง nickname normalized ของผู้เล่นบน space (จากแถว peers) — ใช้คีย์เก็บหลักฐานข้ามการ reconnect */
+function peerNickKey(space, playerId) {
+  if (!space || !playerId) return '';
+  const p = space.peers && space.peers.get ? space.peers.get(playerId) : null;
+  if (!p || !p.nickname) return '';
+  return normalizeLobbyNickname(p.nickname);
+}
+
+/** สำเนาหลักฐาน — fallback ไป evidenceByNick ถ้าไม่มีตาม socket.id (กรณี reconnect socket ใหม่) */
+function clonePlayerEvidence(space, playerId) {
+  ensureSpacePlayerEvidence(space);
+  let row = space.playerEvidence[playerId];
+  if (!row || !row.length) {
+    const nk = peerNickKey(space, playerId);
+    if (nk && space.evidenceByNick[nk]) {
+      row = space.evidenceByNick[nk];
+      space.playerEvidence[playerId] = row;
+    }
+  }
+  if (!row) row = [[], [], []];
+  return [0, 1, 2].map((i) => normalizeEvidenceSlotList(row[i]));
+}
+
+/** ซิงค์หลักฐานของผู้เล่นปัจจุบันลง evidenceByNick — เรียกหลังการ์ดเปลี่ยน */
+function syncEvidenceByNick(space, playerId) {
+  ensureSpacePlayerEvidence(space);
+  const nk = peerNickKey(space, playerId);
+  if (!nk) return;
+  const row = space.playerEvidence[playerId];
+  if (Array.isArray(row)) space.evidenceByNick[nk] = row;
+}
+
+/** จำนวนหลักฐานที่เก็บได้ต่อผู้ต้องสงสัย (ไม่จำกัด) — ใช้แสดงติก/จำนวนบนการ์ด suspect */
+function playerSuspectProgressFromEvidence(space, playerId) {
+  const row = clonePlayerEvidence(space, playerId);
+  return row.map((arr) => arr.length);
+}
+
+/** มอบการ์ดหลักฐาน 1 ใบ (สุ่ม rarity ตามเกรด → สุ่มรูปจากพูล) เก็บเป็น card object ไม่จำกัดจำนวน */
+function awardRandomEvidenceCardToPlayer(space, playerId, suspectIndex, grade) {
+  if (suspectIndex < 0 || suspectIndex > 2) return null;
+  ensureSpacePlayerEvidence(space);
+  /* เผื่อ rejoin: ดึงหลักฐานเก่าจาก nickname ถ้ามี ก่อนเพิ่มใบใหม่ */
+  if (!space.playerEvidence[playerId]) {
+    const nk = peerNickKey(space, playerId);
+    space.playerEvidence[playerId] = (nk && space.evidenceByNick[nk])
+      ? space.evidenceByNick[nk]
+      : [[], [], []];
+  }
+  const list = normalizeEvidenceSlotList(space.playerEvidence[playerId][suspectIndex]);
+  const card = pickEvidenceCardForSuspect(space, suspectIndex, grade);
+  if (!card) {
+    space.playerEvidence[playerId][suspectIndex] = list;
+    syncEvidenceByNick(space, playerId);
+    return null;
+  }
+  list.push(card);
+  space.playerEvidence[playerId][suspectIndex] = list;
+  syncEvidenceByNick(space, playerId);
+  return card;
+}
+
+function awardDetectiveEvidenceForMinigameEnd(space, suspectIndex, playerIds, grade) {
+  const out = {};
+  (playerIds || []).forEach((pid) => {
+    if (!space.peers.has(pid)) return;
+    const card = awardRandomEvidenceCardToPlayer(space, pid, suspectIndex, grade);
+    if (card != null) out[pid] = card;
+  });
+  return out;
+}
+
+function resolveDetectiveSuspectAwardIndex(space) {
+  if (typeof space.suspectActiveIndex === 'number' && space.suspectActiveIndex >= 0 && space.suspectActiveIndex <= 2) {
+    return space.suspectActiveIndex;
+  }
+  if (typeof space.lastDetectiveInvestigatedSuspect === 'number'
+    && space.lastDetectiveInvestigatedSuspect >= 0 && space.lastDetectiveInvestigatedSuspect <= 2) {
+    return space.lastDetectiveInvestigatedSuspect;
+  }
+  if (typeof space.suspectPickIndex === 'number' && space.suspectPickIndex >= 0 && space.suspectPickIndex <= 2) {
+    return space.suspectPickIndex;
+  }
+  return -1;
+}
+
+/** มอบการ์ดหลักฐาน 1 ใบต่อผู้เล่นเมื่อจบมินิเกม (ครั้งเดียวต่อรอบ — ไม่ขึ้นเกรด) */
+function grantDetectiveEvidenceForCurrentRun(sid, space, playerIds) {
+  const suspectIdx = resolveDetectiveSuspectAwardIndex(space);
+  if (suspectIdx < 0) return { suspectIdx: -1, awarded: {} };
+  if (space.detectiveAwardDoneForRun) {
+    return { suspectIdx, awarded: {}, alreadyGranted: true };
+  }
+  const ids = (playerIds && playerIds.length) ? playerIds : [...space.peers.keys()];
+  const grade = computeRunGradeForEvidence(space);
+  const awardedList = {};
+  ids.forEach((pid) => { awardedList[pid] = []; });
+  const awarded = awardDetectiveEvidenceForMinigameEnd(space, suspectIdx, ids, grade);
+  ids.forEach((pid) => { if (awarded[pid]) awardedList[pid].push(awarded[pid]); });
+  /* Card 7 Free Evidence — ทุกคนรับหลักฐานเพิ่ม (after_game) */
+  let freeEvidenceCount = 0;
+  const pend = space.pendingSpecialCard;
+  if (pend && Number(pend.cardId) === 7 && !pend.consumed) {
+    const def = specialCardDef(7);
+    freeEvidenceCount = (def && def.evidence) || 2;
+    for (let n = 0; n < freeEvidenceCount; n++) {
+      ids.forEach((pid) => {
+        if (!space.peers.has(pid)) return;
+        const extra = awardRandomEvidenceCardToPlayer(space, pid, suspectIdx, grade);
+        if (extra != null) { awardedList[pid].push(extra); if (awarded[pid] == null) awarded[pid] = extra; }
+      });
+    }
+    pend.consumed = true;
+  }
+  space.detectiveAwardDoneForRun = true;
+  space.lastDetectiveInvestigatedSuspect = suspectIdx;
+  space.lastEvidenceGrant = { suspectIdx, awarded, awardedList, grade, freeEvidenceCount };
+  emitLobbyEvidenceSync(sid, space);
+  return { suspectIdx, awarded, awardedList, grade, alreadyGranted: false, freeEvidenceCount };
+}
+
+function emitLobbyEvidenceSync(sid, space) {
+  if (!sid || !space) return;
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('lobby-evidence-sync', {
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    });
+  });
+}
+
+function emitDetectiveLobbyReturnToPeers(sid, space, message, basePayload) {
+  const msg = message || 'จบมินิเกม — กลับ LobbyB';
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    const personal = {
+      ...basePayload,
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    };
+    sock.emit('quiz-ended', { message: msg, returnToLobbyB: true });
+    sock.emit('detective-minigame-ended', personal);
+    sock.emit('game-start', personal);
+  });
+}
+
+/** เริ่มมินิเกมตามการ์ดที่เลือก (หลังกดเริ่มสืบสวน) */
+function beginDetectiveSuspectMinigame(sid, space, cardEntry, selectedIndex) {
+  const mapId = cardEntry && cardEntry.mapId ? String(cardEntry.mapId).trim() : '';
+  const md = mapId && maps.has(mapId) ? maps.get(mapId) : null;
+  if (!md) return { ok: false, error: 'ไม่พบฉากเกมบนเซิร์ฟเวอร์' };
+
+  space.suspectPhaseActive = false;
+  space.detectiveMinigameActive = true;
+  space.detectiveAwardDoneForRun = false;
+  /* Card 3 Ban — ผู้ที่ถูกแบนไม่ได้เล่นมินิเกมรอบนี้ (1 รอบ) */
+  space.bannedThisRunPlayerId = space.bannedPlayerId || null;
+  space.bannedPlayerId = null;
+  space.detectiveMinigameCardIndex = cardEntry.cardIndex;
+  // จำว่ากำลังสืบผู้ต้องสงสัยคนไหน เพื่อเติมหลักฐาน (ติกถูก) ตอนเล่นจบ
+  space.suspectActiveIndex = (typeof selectedIndex === 'number' && selectedIndex >= 0 && selectedIndex <= 2)
+    ? selectedIndex
+    : (cardEntry && typeof cardEntry.cardIndex === 'number' ? cardEntry.cardIndex : 0);
+  space.gauntletReturnMapId = POST_CASE_LOBBY_SPACE_ID;
+  clearSpaceQuizTimers(space);
+  if (space.quizSession) space.quizSession.active = false;
+  space.quizSession = null;
+  space.mapId = mapId;
+  space.mapData = md;
+  /* สุ่มไอคอนคำถามพิเศษสำหรับรอบนี้ (1 ใน 3) — ส่งจริงผ่าน joinCb เมื่อ client เข้า play.html */
+  maybeSpawnSpecialQuizForRun(space);
+  emitSpecialQuizIcon(sid, space);
+
+  let si = 0;
+  space.peers.forEach((p) => {
+    const sp = pickSpawnForJoin(md, si++);
+    p.x = sp.x;
+    p.y = sp.y;
+    p.direction = 'down';
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+
+  const peersSnap = buildPeersSnapForSpace(space, { gauntlet: md.gameType === 'gauntlet' });
+  const invPayload = {
+    selectedIndex,
+    cardIndex: cardEntry.cardIndex,
+    minigameKey: cardEntry.key,
+    minigameLabel: cardEntry.labelTh,
+    mapId,
+  };
+  io.to(sid).emit('suspect-investigation-start', invPayload);
+
+  if (md.gameType === 'quiz') {
+    const qErr = validateQuizMap(md);
+    if (qErr) {
+      space.detectiveMinigameActive = false;
+      space.gauntletReturnMapId = null;
+      return { ok: false, error: qErr };
+    }
+    /** ภารกิจ mng8a80o — HOW TO + READY + นับ 3-2-1 เหมือน preview (อย่า startQuizGame ทันที) */
+    const isQuizMissionShell = String(mapId).trim() === SUSPECT_INVESTIGATION_QUIZ_MAP_ID;
+    if (!isQuizMissionShell) {
+      io.to(sid).emit('game-start', {
+        quizMode: true,
+        stayInRoomLobby: true,
+        mapId,
+        peersSnap,
+        detectiveMinigame: true,
+        minigameLabel: cardEntry.labelTh,
+        bannedPlayerId: space.bannedThisRunPlayerId || null,
+      });
+      setTimeout(() => {
+        const spNow = spaces.get(sid);
+        if (!spNow || !spNow.peers.size) return;
+        const mdLive = maps.get(mapId);
+        if (!mdLive || mdLive.gameType !== 'quiz') return;
+        startQuizGame(sid, spNow, mdLive);
+      }, 900);
+      return { ok: true, mapId, gameType: md.gameType };
+    }
+    /* mng8a80o: ต่อ gauntletRun shell ด้านล่าง */
+  }
+
+  stopGauntletTicker(space);
+  space.gauntletRun = null;
+  if (md.gameType === 'gauntlet') {
+    initGauntletPeersAll(space, md);
+    ensureGauntletEndsAtIfNeeded(space);
+    startGauntletTicker(sid, space);
+  } else if (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space) || md.gameType === 'quiz_carry') {
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    space.peers.forEach((_p, id) => { space.gauntletCrownLobbyReady[id] = false; });
+    space.gauntletRun = newBalloonBossShellGauntletRunState();
+  }
+
+  const gameStartPayload = {
+    mapId,
+    peersSnap,
+    detectiveMinigame: true,
+    detectiveReturnLobbyB: true,
+    minigameLabel: cardEntry.labelTh,
+    bannedPlayerId: space.bannedThisRunPlayerId || null,
+  };
+  if (md.gameType === 'gauntlet' && space.gauntletRun) {
+    gameStartPayload.gauntletEndsAt = space.gauntletRun.endsAt != null ? space.gauntletRun.endsAt : null;
+  }
+  if (space.gauntletRun && space.gauntletRun.crownRunHeld) {
+    gameStartPayload.gauntletCrownRunHeld = true;
+  }
+  io.to(sid).emit('game-start', gameStartPayload);
+  return { ok: true, mapId, gameType: md.gameType };
+}
+
+function returnDetectiveSpaceToLobbyB(sid, space, message, awardOptions) {
+  ensurePostCaseLobbyMapLoaded();
+  clearSpaceQuizTimers(space);
+  clearSpecialQuizTimers(space);
+  space.specialQuiz = null;
+  if (space.quizSession) space.quizSession.active = false;
+  space.quizSession = null;
+  space.detectiveMinigameActive = false;
+  space.gauntletReturnMapId = null;
+  stopGauntletTicker(space);
+  space.gauntletRun = null;
+  const suspectIdx = resolveDetectiveSuspectAwardIndex(space);
+  if (suspectIdx >= 0) {
+    space.lastDetectiveInvestigatedSuspect = suspectIdx;
+    let awardIds = [];
+    if (awardOptions && awardOptions.allPlayers) {
+      awardIds = [...space.peers.keys()];
+    } else if (awardOptions && awardOptions.playerId && space.peers.has(awardOptions.playerId)) {
+      awardIds = [awardOptions.playerId];
+    } else if (awardOptions && Array.isArray(awardOptions.playerIds) && awardOptions.playerIds.length) {
+      awardIds = awardOptions.playerIds.filter((id) => space.peers.has(id));
+    }
+    /* Card 3 Ban — ผู้ที่ถูกแบนรอบนี้ไม่ได้เล่น จึงไม่ได้รับหลักฐาน */
+    if (space.bannedThisRunPlayerId) {
+      awardIds = awardIds.filter((id) => id !== space.bannedThisRunPlayerId);
+    }
+    /* ไม่มอบการ์ดเมื่อกลับ LobbyB โดยไม่ระบุ (เช่น refresh room-lobby ระหว่างมินิเกม) */
+    if (!space.detectiveAwardDoneForRun && awardIds.length) {
+      /* ผ่าน grant…CurrentRun เพื่อให้ set lastEvidenceGrant + ใช้ Card 7 Free Evidence + sync แฟ้ม (สำหรับหน้าเปิดเผยหลักฐาน) */
+      grantDetectiveEvidenceForCurrentRun(sid, space, awardIds);
+    }
+  }
+  space.suspectActiveIndex = null;
+  space.bannedThisRunPlayerId = null;
+  const lb = maps.get(POST_CASE_LOBBY_SPACE_ID);
+  if (!lb) {
+    io.to(sid).emit('quiz-ended', { message: message || 'จบมินิเกม — ไม่พบ LobbyB', returnToLobbyB: true });
+    return;
+  }
+  space.mapId = POST_CASE_LOBBY_SPACE_ID;
+  space.mapData = lb;
+  space.suspectPhaseActive = true;
+  let gi = 0;
+  space.peers.forEach((p) => {
+    const sp = pickSpawnForJoin(lb, gi++);
+    p.x = sp.x;
+    p.y = sp.y;
+    p.direction = 'down';
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+  const peersSnap = buildPeersSnapForSpace(space);
+  const basePayload = {
+    stayInRoomLobby: true,
+    mapId: POST_CASE_LOBBY_SPACE_ID,
+    peersSnap,
+    suspectPhaseActive: true,
+    suspectPickIndex: typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0,
+    cardMinigames: space.suspectCardMinigames || [],
+    detectiveReturn: true,
+  };
+  emitDetectiveLobbyReturnToPeers(sid, space, message, basePayload);
+}
+
+/* ===== ขั้นพิจารณาคดี — โหวตชี้ตัวคนร้าย ===== */
+function emitTrialVoteUpdate(sid, space) {
+  const counts = [0, 0, 0];
+  const votes = space.trialVotes || {};
+  Object.keys(votes).forEach((id) => { const v = votes[id]; if (v >= 0 && v <= 2) counts[v]++; });
+  io.to(sid).emit('trial-vote-update', {
+    counts,
+    voted: Object.keys(votes).length,
+    totalPlayers: trialEligibleVoterTotal(space),
+  });
+}
+
+function computeAndEmitTrialResult(sid, space) {
+  /* กันบอทบางตัวยังไม่โหวต — โหวตให้หมดก่อนรวมผล */
+  autoVoteBotsTrial(space);
+  clearTrialVoteTimer(space);
+  const counts = [0, 0, 0];
+  const votes = space.trialVotes || {};
+  const culprit = (typeof space.culpritIndex === 'number') ? space.culpritIndex : 0;
+  /* Card 5 Bail Coin — จับผิดตัวให้โหวตใหม่ได้ 1 ครั้ง */
+  {
+    const c2 = [0, 0, 0];
+    Object.keys(votes).forEach((id) => { const v = votes[id]; if (v >= 0 && v <= 2) c2[v]++; });
+    let mostVoted = 0; for (let k = 1; k <= 2; k++) { if (c2[k] > c2[mostVoted]) mostVoted = k; }
+    const anyVotes = (c2[0] + c2[1] + c2[2]) > 0;
+    const wrong = anyVotes && mostVoted !== culprit;
+    const pend = space.pendingSpecialCard;
+    if (wrong && pend && Number(pend.cardId) === 5 && !pend.consumed && !space.trialBailUsed) {
+      pend.consumed = true;
+      space.trialBailUsed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'bail' });
+      openTrialVotingPhase(sid, space, { revote: true });
+      return;
+    }
+  }
+  space.trialPhase = 'revealed';
+  const winners = [];
+  if (!space.trialScores) space.trialScores = {};
+  Object.keys(votes).forEach((id) => {
+    const v = votes[id];
+    if (v >= 0 && v <= 2) counts[v]++;
+    if (v === culprit) {
+      winners.push(id);
+      space.trialScores[id] = (space.trialScores[id] || 0) + 100;
+    }
+  });
+  const winnerNames = winners.map((id) => {
+    const p = space.peers.get(id);
+    if (p && p.nickname) return p.nickname;
+    if (typeof id === 'string' && id.indexOf(TESTIMONY_BOT_PREFIX) === 0) {
+      const slot = parseInt(id.slice(TESTIMONY_BOT_PREFIX.length), 10);
+      return Number.isFinite(slot) ? ('บอท ' + (slot + 1)) : 'บอท';
+    }
+    return String(id).slice(0, 6);
+  });
+  io.to(sid).emit('trial-result', {
+    culpritIndex: culprit,
+    counts,
+    winners,
+    winnerNames,
+    cardMinigames: space.suspectCardMinigames || [],
+  });
+  space.silencedPlayerId = null;
+}
+
+/* ===== ห้องสรุปหลักฐาน — การไต่สวน (ปากคำ 3 รอบ ก่อนโหวต) ===== */
+/** id บอทใน testimony/trial — สอดคล้องกับ slot บน lobby (__lobby_bot_0..N) */
+const TESTIMONY_BOT_PREFIX = '__lobby_bot_';
+
+function testimonyBotIds(space) {
+  const n = effectiveBotSlotCount(space);
+  const out = [];
+  for (let i = 0; i < n; i++) out.push(TESTIMONY_BOT_PREFIX + i);
+  return out;
+}
+
+function buildTestimonyMembers(space) {
+  const arr = [];
+  space.peers.forEach((p, id) => {
+    arr.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isHost: id === space.hostId, isBot: false });
+  });
+  testimonyBotIds(space).forEach((bid, i) => {
+    arr.push({ id: bid, nickname: 'บอท ' + (i + 1), isHost: false, isBot: true });
+  });
+  return arr;
+}
+
+/** จำนวนผู้เล่นทั้งหมดที่ต้อง submit/vote (รวมบอท) */
+function testimonyTotalParticipants(space) {
+  return (space.peers ? space.peers.size : 0) + effectiveBotSlotCount(space);
+}
+
+/** จำนวนการ์ดที่บอทควรเลือก — เท่ากับ max ของ "ผู้เล่นจริง" ในรอบ (กันบอทเลือก 2 ขณะคนเลือก 1) */
+function botTestimonyPickCount(space) {
+  const round = typeof space.testimonyRound === 'number' ? space.testimonyRound : 0;
+  let maxOwned = 0;
+  space.peers.forEach((_p, pid) => {
+    const ev = clonePlayerEvidence(space, pid);
+    const len = Array.isArray(ev[round]) ? ev[round].length : 0;
+    if (len > maxOwned) maxOwned = len;
+  });
+  /* ถ้าผู้เล่นจริงไม่มีหลักฐานเลย — ให้บอทเลือก 1 ใบ (กันรอบติด) */
+  if (maxOwned === 0) return 1;
+  return Math.max(1, Math.min(2, maxOwned));
+}
+
+/** สุ่ม picks ให้บอทในรอบ testimony ปัจจุบัน — เก็บเป็น card object (สุ่มจากพูล rarity 'C') */
+function autoSubmitBotTestimonyPicks(space) {
+  if (!space.testimonySubmitted) space.testimonySubmitted = {};
+  const round = typeof space.testimonyRound === 'number' ? space.testimonyRound : 0;
+  const want = botTestimonyPickCount(space);
+  testimonyBotIds(space).forEach((bid) => {
+    if (space.testimonySubmitted[bid] != null) return;
+    const picks = [];
+    for (let n = 0; n < want; n++) {
+      const c = pickEvidenceCardForSuspect(space, round, 'C');
+      if (c) picks.push(c);
+    }
+    space.testimonySubmitted[bid] = picks;
+  });
+}
+
+function emitTestimonyOpen(sid, space) {
+  space.testimonySubmitted = {};
+  space.testimonyReadyNext = {};
+  space.testimonyRevealed = false;
+  /* บอทส่งหลักฐานทันทีเมื่อเปิด round */
+  autoSubmitBotTestimonyPicks(space);
+  const submittedIds = Object.keys(space.testimonySubmitted || {});
+  const base = {
+    round: space.testimonyRound,
+    suspectIndex: space.testimonyRound,
+    members: buildTestimonyMembers(space),
+    totalPlayers: testimonyTotalParticipants(space),
+    hostId: space.hostId,
+    cardMinigames: space.suspectCardMinigames || [],
+    submitted: submittedIds,
+  };
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('testimony-open', {
+      ...base,
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+    });
+  });
+  /* sync สถานะปุ่ม (เผื่อบอทส่งครบแล้ว — host ต้องเห็นปุ่ม "เปิดหลักฐานทั้งหมด" ทันที) */
+  emitTestimonyStatus(sid, space);
+}
+
+function emitTestimonyStatus(sid, space) {
+  io.to(sid).emit('testimony-status', {
+    round: space.testimonyRound,
+    submitted: Object.keys(space.testimonySubmitted || {}),
+    totalPlayers: testimonyTotalParticipants(space),
+  });
+}
+
+function doTestimonyReveal(sid, space) {
+  space.testimonyRevealed = true;
+  /* กันกรณีบอทยังไม่ submit (เผื่อ edge case) */
+  autoSubmitBotTestimonyPicks(space);
+  /* บอทพร้อมไปรอบถัดไปทันที (auto-ready) */
+  if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+  testimonyBotIds(space).forEach((bid) => { space.testimonyReadyNext[bid] = true; });
+  io.to(sid).emit('testimony-reveal', {
+    round: space.testimonyRound,
+    picks: space.testimonySubmitted || {},
+    members: buildTestimonyMembers(space),
+    ready: Object.keys(space.testimonyReadyNext),
+    totalPlayers: testimonyTotalParticipants(space),
+  });
+}
+
+/** สุ่มโหวตชี้คนร้ายให้บอท — สมจริงๆ ก็คือเลือกใครก็ได้ใน 3 คน (มี bias ให้ตัวร้ายจริง 40% เพื่อให้สนุก) */
+/** เวลาโหวตพิจารณาคดี (มิลลิวิ) + เวลาที่การ์ด Extension เพิ่มให้ */
+const TRIAL_VOTE_MS = 30000;
+const TRIAL_VOTE_EXTENSION_MS = 10000;
+
+function clearTrialVoteTimer(space) {
+  if (space.trialVoteTimer) { clearTimeout(space.trialVoteTimer); space.trialVoteTimer = null; }
+}
+
+/** เปิดเฟสโหวต — ตั้งตัวจับเวลา + ส่ง trial-open (ใช้ทั้งโหวตครั้งแรกและโหวตใหม่จาก Bail) */
+function openTrialVotingPhase(sid, space, opts) {
+  opts = opts || {};
+  space.testimonyActive = false;
+  space.trialPhase = 'voting';
+  space.trialVotes = {};
+  autoVoteBotsTrial(space);
+  clearTrialVoteTimer(space);
+  /* Card 2 Extension — เพิ่มเวลาโหวต +10 วิ (ใช้ครั้งเดียว) */
+  let extraMs = 0;
+  let extensionCard = false;
+  const pend = space.pendingSpecialCard;
+  if (pend && Number(pend.cardId) === 2 && !pend.consumed) {
+    extraMs = TRIAL_VOTE_EXTENSION_MS;
+    extensionCard = true;
+    pend.consumed = true;
+  }
+  const durMs = TRIAL_VOTE_MS + extraMs;
+  space.trialVoteEndsAt = Date.now() + durMs;
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('trial-open', {
+      hostId: space.hostId,
+      cardMinigames: space.suspectCardMinigames || [],
+      myPlayerEvidence: clonePlayerEvidence(space, pid),
+      suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+      voteEndsAt: space.trialVoteEndsAt,
+      voteDurationMs: durMs,
+      extensionCard,
+      extensionSec: extensionCard ? (TRIAL_VOTE_EXTENSION_MS / 1000) : 0,
+      revote: !!opts.revote,
+    });
+  });
+  if (extensionCard) {
+    io.to(sid).emit('special-card-applied', {
+      card: specialCardClientPayload(pend.card),
+      addSec: TRIAL_VOTE_EXTENSION_MS / 1000,
+      context: 'trial',
+    });
+  }
+  emitTrialVoteUpdate(sid, space);
+  space.trialVoteTimer = setTimeout(() => {
+    const spNow = spaces.get(sid);
+    if (!spNow || spNow.trialPhase !== 'voting') return;
+    computeAndEmitTrialResult(sid, spNow);
+  }, durMs + 120);
+}
+
+/* ===== โหวตเลือกผู้เล่น 1 คน (ใช้ร่วม: Silence ปิดปาก / Ban ห้ามเล่น) ===== */
+const PICK_VOTE_MS = 15000;
+
+function clearPickVoteTimer(space) {
+  if (space.pickVoteTimer) { clearTimeout(space.pickVoteTimer); space.pickVoteTimer = null; }
+}
+
+function pickVoteCandidates(space) {
+  const arr = [];
+  space.peers.forEach((p, id) => arr.push({ id, nickname: (p && p.nickname) ? p.nickname : String(id).slice(0, 6), isBot: false }));
+  testimonyBotIds(space).forEach((bid, i) => arr.push({ id: bid, nickname: 'บอท ' + (i + 1), isBot: true }));
+  return arr;
+}
+
+function autoVotePickBots(space) {
+  const pv = space.pickVote;
+  if (!pv) return;
+  testimonyBotIds(space).forEach((bid) => {
+    if (pv.votes[bid] != null) return;
+    const choices = pv.candidates.filter((c) => c.id !== bid);
+    if (!choices.length) return;
+    pv.votes[bid] = choices[Math.floor(Math.random() * choices.length)].id;
+  });
+}
+
+function emitPickVoteUpdate(sid, space) {
+  const pv = space.pickVote;
+  if (!pv) return;
+  const counts = {};
+  Object.keys(pv.votes).forEach((vid) => { const t = pv.votes[vid]; counts[t] = (counts[t] || 0) + 1; });
+  io.to(sid).emit('player-pick-vote-update', {
+    voted: Object.keys(pv.votes).length,
+    total: pv.candidates.length,
+    counts,
+  });
+}
+
+function startPlayerPickVote(sid, space, purpose, onResolve) {
+  clearPickVoteTimer(space);
+  const candidates = pickVoteCandidates(space);
+  space.pickVote = { purpose, votes: {}, candidates, endsAt: Date.now() + PICK_VOTE_MS, resolved: false, onResolve };
+  autoVotePickBots(space);
+  space.peers.forEach((_p, pid) => {
+    const sock = io.sockets.sockets.get(pid);
+    if (!sock) return;
+    sock.emit('player-pick-vote-open', {
+      purpose,
+      candidates: candidates.map((c) => ({ id: c.id, nickname: c.nickname, isBot: c.isBot })),
+      endsAt: space.pickVote.endsAt,
+      durationMs: PICK_VOTE_MS,
+    });
+  });
+  emitPickVoteUpdate(sid, space);
+  space.pickVoteTimer = setTimeout(() => {
+    const sp = spaces.get(sid);
+    if (!sp || !sp.pickVote || sp.pickVote.resolved) return;
+    resolvePlayerPickVote(sid, sp);
+  }, PICK_VOTE_MS + 120);
+  maybeResolvePickVote(sid, space);
+}
+
+function maybeResolvePickVote(sid, space) {
+  const pv = space.pickVote;
+  if (!pv || pv.resolved) return;
+  const ids = pv.candidates.map((c) => c.id);
+  if (ids.length > 0 && ids.every((id) => pv.votes[id] != null)) resolvePlayerPickVote(sid, space);
+}
+
+function resolvePlayerPickVote(sid, space) {
+  const pv = space.pickVote;
+  if (!pv || pv.resolved) return;
+  pv.resolved = true;
+  clearPickVoteTimer(space);
+  const counts = {};
+  Object.keys(pv.votes).forEach((vid) => { const t = pv.votes[vid]; counts[t] = (counts[t] || 0) + 1; });
+  let max = -1;
+  Object.keys(counts).forEach((tid) => { if (counts[tid] > max) max = counts[tid]; });
+  const maxIds = Object.keys(counts).filter((tid) => counts[tid] === max);
+  const target = maxIds.length ? maxIds[Math.floor(Math.random() * maxIds.length)] : null;
+  const tc = pv.candidates.find((c) => c.id === target);
+  const targetName = tc ? tc.nickname : '';
+  io.to(sid).emit('player-pick-vote-result', { purpose: pv.purpose, targetId: target, targetName, counts });
+  const cb = pv.onResolve;
+  space.pickVote = null;
+  if (typeof cb === 'function') cb(target, targetName);
+}
+
+function trialSilencedIsParticipant(space) {
+  const s = space.silencedPlayerId;
+  if (!s) return false;
+  if (space.peers.has(s)) return true;
+  return (typeof s === 'string' && s.indexOf(TESTIMONY_BOT_PREFIX) === 0);
+}
+
+function trialEligibleVoterTotal(space) {
+  let t = testimonyTotalParticipants(space);
+  if (trialSilencedIsParticipant(space)) t = Math.max(0, t - 1);
+  return t;
+}
+
+function autoVoteBotsTrial(space) {
+  if (!space.trialVotes) space.trialVotes = {};
+  const culprit = (typeof space.culpritIndex === 'number') ? space.culpritIndex : Math.floor(Math.random() * 3);
+  testimonyBotIds(space).forEach((bid) => {
+    if (bid === space.silencedPlayerId) return; /* บอทที่ถูกปิดปากไม่โหวต */
+    if (space.trialVotes[bid] != null) return;
+    /* 40% โหวตถูก, 60% โหวตสุ่ม */
+    let pick;
+    if (Math.random() < 0.4) {
+      pick = culprit;
+    } else {
+      pick = Math.floor(Math.random() * 3);
+    }
+    space.trialVotes[bid] = pick;
+  });
+}
+
+function advanceTestimony(sid, space) {
+  space.testimonyRound = (typeof space.testimonyRound === 'number' ? space.testimonyRound : 0) + 1;
+  if (space.testimonyRound >= 3) {
+    space.trialBailUsed = false;
+    space.silencedPlayerId = null;
+    /* Card 4 Silence — โหวตเลือกผู้เล่น 1 คนให้ห้ามโหวต ก่อนเข้าโหวตจริง */
+    const pend = space.pendingSpecialCard;
+    if (pend && Number(pend.cardId) === 4 && !pend.consumed) {
+      pend.consumed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'silence' });
+      startPlayerPickVote(sid, space, 'silence', (targetId) => {
+        const sp = spaces.get(sid);
+        if (!sp) return;
+        sp.silencedPlayerId = targetId || null;
+        openTrialVotingPhase(sid, sp, { revote: false });
+      });
+      return;
+    }
+    openTrialVotingPhase(sid, space, { revote: false });
+  } else {
+    emitTestimonyOpen(sid, space);
+  }
+}
+
+function endQuizGame(sid, space, message) {
+  clearSpaceQuizTimers(space);
+  if (space.quizSession) space.quizSession.active = false;
+  if (space.detectiveMinigameActive) {
+    returnDetectiveSpaceToLobbyB(sid, space, message, { allPlayers: true });
+    space.quizSession = null;
+    return;
+  }
+  io.to(sid).emit('quiz-ended', { message: message || 'จบเกม' });
+  space.quizSession = null;
+}
+
+function emitQuizPlayerStates(sid, space) {
+  const sess = space.quizSession;
+  if (!sess || !sess.players) return;
+  space.peers.forEach((_, peerId) => {
+    const st = sess.players[peerId];
+    if (st) io.to(peerId).emit('quiz-player-state', { ...st });
+  });
+}
+
+function scheduleQuizReadPhase(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  const idx = sess.qIndex;
+  const qList = sess.questions;
+  if (idx >= qList.length) {
+    endQuizGame(sid, space, 'จบเกม — ครบทุกข้อแล้ว');
+    return;
+  }
+  const q = qList[idx];
+  const readMs = (Number.isFinite(sess.readMs) && sess.readMs >= 1000) ? sess.readMs : 10000;
+  sess.phase = 'read';
+  sess.phaseEndsAt = Date.now() + readMs;
+  io.to(sid).emit('quiz-phase', {
+    phase: 'read',
+    questionIndex: idx + 1,
+    questionTotal: qList.length,
+    text: String(q.text || '').trim(),
+    endsAt: sess.phaseEndsAt,
+  });
+  const t = setTimeout(() => scheduleQuizAnswerPhase(sid, space, md), readMs);
+  space.quizTimers.push(t);
+}
+
+function scheduleQuizAnswerPhase(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  const answerMs = (Number.isFinite(sess.answerMs) && sess.answerMs >= 1000) ? sess.answerMs : 5000;
+  sess.phase = 'answer';
+  sess.phaseEndsAt = Date.now() + answerMs;
+  io.to(sid).emit('quiz-phase', {
+    phase: 'answer',
+    questionIndex: sess.qIndex + 1,
+    questionTotal: sess.questions.length,
+    endsAt: sess.phaseEndsAt,
+  });
+  emitQuizPlayerStates(sid, space);
+  const t = setTimeout(() => resolveQuizRound(sid, space, md), answerMs);
+  space.quizTimers.push(t);
+}
+
+function resolveQuizRound(sid, space, md) {
+  const sess = space.quizSession;
+  if (!sess || !sess.active) return;
+  /* ใช้แผนที่ตอนเริ่มเกมเป็นหลัก — กัน getLobbyLayoutMapForSpace คืน lobby/zep แล้ว return ทิ้งทำให้ไม่มีคะแนน/ไม่เตะ */
+  const mdLive = sess.quizMapMd || getLobbyLayoutMapForSpace(space) || md;
+  if (!mdLive) return;
+  const idx = sess.qIndex;
+  const q = sess.questions[idx];
+  const correctTrue = !!q.answerTrue;
+  const tGrid = mdLive.quizTrueArea || [];
+  const fGrid = mdLive.quizFalseArea || [];
+
+  let eligibleCount = 0;
+  let anyRight = false;
+  const results = [];
+
+  const ejectMoves = [];
+
+  space.peers.forEach((p, peerId) => {
+    const st = sess.players[peerId];
+    if (!st) return;
+    eligibleCount++;
+    const tx = Math.floor(Number(p.x));
+    const ty = Math.floor(Number(p.y));
+    const inT = quizCellOn(tGrid, tx, ty);
+    const inF = quizCellOn(fGrid, tx, ty);
+    let choice = null;
+    if (inT && !inF) choice = true;
+    else if (inF && !inT) choice = false;
+    else if (inT && inF) choice = true;
+
+    let right = false;
+    if (choice === null) right = false;
+    else right = (choice === correctTrue);
+
+    if (right) {
+      st.score = (typeof st.score === 'number' ? st.score : 0) + QUIZ_TF_POINTS_PER_CORRECT;
+      anyRight = true;
+    }
+    /* ผิดทุกกรณี = ล็อกโซนจริงเท็จ + กลับจุดเกิด (สุ่มใน spawnArea ถ้ามี) */
+    if (!right) {
+      st.cannotTrue = true;
+      st.cannotFalse = true;
+      const joinOrd = typeof p.spawnJoinOrder === 'number' && Number.isFinite(p.spawnJoinOrder)
+        ? Math.max(0, Math.floor(p.spawnJoinOrder))
+        : [...space.peers.keys()].indexOf(peerId);
+      const pos = quizWrongAnswerRespawnPosition(mdLive, joinOrd);
+      p.x = pos.x;
+      p.y = pos.y;
+      ejectMoves.push({
+        id: peerId,
+        x: p.x,
+        y: p.y,
+        direction: p.direction || 'down',
+        characterId: p.characterId ?? null,
+      });
+    }
+
+    results.push({
+      id: peerId,
+      nickname: p.nickname || '',
+      right,
+      choice,
+      eliminated: !!st.eliminated,
+      score: typeof st.score === 'number' ? st.score : 0,
+    });
+  });
+
+  ejectMoves.forEach((ev) => {
+    io.to(sid).emit('user-move', ev);
+    try {
+      const sock = io.of('/').sockets && io.of('/').sockets.get(ev.id);
+      if (sock) sock.emit('user-move', ev);
+    } catch (e) { /* ignore */ }
+  });
+
+  const allWrong = eligibleCount > 0 && !anyRight;
+
+  const scores = {};
+  space.peers.forEach((_, peerId) => {
+    const st = sess.players[peerId];
+    scores[peerId] = st && typeof st.score === 'number' ? st.score : 0;
+  });
+
+  io.to(sid).emit('quiz-result', {
+    questionIndex: idx + 1,
+    correctTrue,
+    results,
+    allWrong,
+    scores,
+  });
+  emitQuizPlayerStates(sid, space);
+
+  /** ภารกิจสืบสวน / mng8a80o — เล่นครบ quizRoundQuestionCount แม้ทุกคนผิดข้อนี้ (เหมือน preview ไม่จบกลางรอบ) */
+  const playFullQuizRound =
+    !!space.detectiveMinigameActive || isQuizQuestionMissionShellSpace(space);
+  if (allWrong && !playFullQuizRound) {
+    endQuizGame(sid, space, 'จบเกม — ทุกคนตอบผิดข้อนี้');
+    return;
+  }
+
+  sess.qIndex++;
+  if (sess.qIndex >= sess.questions.length) {
+    endQuizGame(sid, space, 'จบเกม — ครบทุกข้อแล้ว');
+    return;
+  }
+
+  const betweenMs = (Number.isFinite(sess.betweenMs) && sess.betweenMs >= 0) ? sess.betweenMs : 3500;
+  const mapRef = sess.quizMapMd || md;
+  const t = setTimeout(() => scheduleQuizReadPhase(sid, space, mapRef), betweenMs);
+  space.quizTimers.push(t);
+}
+
+function startQuizGame(sid, space, md) {
+  clearSpaceQuizTimers(space);
+  const settings = loadQuizSettings();
+  const pool = getQuizQuestionPool(md);
+  const shuffled = shuffleQuizQuestions(pool);
+  const cap = clampQuizRoundQuestionCount(settings.quizRoundQuestionCount, 10);
+  const picked = shuffled.slice(0, Math.min(cap, shuffled.length));
+  const players = {};
+  space.peers.forEach((_, peerId) => {
+    players[peerId] = { cannotTrue: false, cannotFalse: false, eliminated: false, score: 0 };
+  });
+  space.quizSession = {
+    active: true,
+    questions: picked,
+    qIndex: 0,
+    phase: 'idle',
+    phaseEndsAt: 0,
+    readMs: settings.readMs,
+    answerMs: settings.answerMs,
+    betweenMs: settings.betweenMs,
+    players,
+    quizMapMd: md,
+  };
+  scheduleQuizReadPhase(sid, space, md);
+}
+
+function safeMapId(id) {
+  return (id || '').replace(/[^a-z0-9_-]/gi, '') || null;
+}
+
+/** กริด hub = 0/1 · option = 0 หรือเลขช่อง 1..QUIZ_CARRY_MAX_OPTION_SLOTS (ห้ามใช้กฎ === 1 กับ option — เลข 2–16หาย) */
+function normalizeQuizCarryLayersOnMap(m) {
+  if (!m || m.gameType !== 'quiz_carry') return;
+  const w = m.width || 20, h = m.height || 15;
+  const normHub = () => {
+    const src = m.quizCarryHubArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+      rows.push(row);
+    }
+    m.quizCarryHubArea = rows;
+  };
+  const normOptions = () => {
+    const src = m.quizCarryOptionArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        const n = typeof v === 'number' ? v : parseInt(String(v), 10);
+        row.push(Number.isFinite(n) && n >= 1 && n <= QUIZ_CARRY_MAX_OPTION_SLOTS ? Math.floor(n) : 0);
+      }
+      rows.push(row);
+    }
+    m.quizCarryOptionArea = rows;
+  };
+  const normCountdown = () => {
+    const src = m.carryEmbedCountdownArea || [];
+    const rows = [];
+    for (let y = 0; y < h; y++) {
+      const r = src[y];
+      const row = [];
+      for (let x = 0; x < w; x++) {
+        const v = r && r[x];
+        row.push(Number(v) === 1 ? 1 : 0);
+      }
+      rows.push(row);
+    }
+    m.carryEmbedCountdownArea = rows;
+  };
+  normHub();
+  normOptions();
+  normCountdown();
+}
+
+/** กริดแพลตฟอร์มกระโดดให้รอด — 0/1 ต่อช่อง */
+function normalizeQuizBattleDomeAreaOnMap(m) {
+  if (!m || m.gameType !== 'quiz_battle') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.quizBattleDomeArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.quizBattleDomeArea = rows;
+}
+
+function normalizeQuizBattlePathAreaOnMap(m) {
+  if (!m || m.gameType !== 'quiz_battle') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.quizBattlePathArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.quizBattlePathArea = rows;
+}
+
+function quizBattlePathModeActiveServer(m) {
+  if (!m || m.gameType !== 'quiz_battle' || !m.quizBattlePathArea) return false;
+  const g = m.quizBattlePathArea;
+  for (let y = 0; y < g.length; y++) {
+    const row = g[y];
+    if (!row) continue;
+    for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+  }
+  return false;
+}
+
+function quizBattleFootprintFullyOnPathServer(m, px, py) {
+  if (!quizBattlePathModeActiveServer(m)) return true;
+  const g = m.quizBattlePathArea;
+  for (const k of quizCarryFootprintTileKeys(m, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (!g[ty] || g[ty][tx] !== 1) return false;
+  }
+  return true;
+}
+
+function serverFootprintClearOfWalls(md, px, py) {
+  const w = md.width || 20, h = md.height || 15;
+  for (const k of serverWallCollisionTileKeys(md, px, py)) {
+    const [tx, ty] = k.split(',').map(Number);
+    if (tx < 0 || tx >= w || ty < 0 || ty >= h) return false;
+    const row = md.objects && md.objects[ty];
+    if (!row || row[tx] === 1) return false;
+  }
+  return true;
+}
+
+/** จุดใกล้สุดบนเส้นทาง ( footprint อยู่ใน path + ไม่ทับกำแพง ) — ใช้ตอน join / เริ่มเกม */
+function snapPositionOntoQuizBattlePathServer(md, px, py) {
+  if (!md || md.gameType !== 'quiz_battle' || !quizBattlePathModeActiveServer(md)) return { x: px, y: py };
+  if (quizBattleFootprintFullyOnPathServer(md, px, py) && serverFootprintClearOfWalls(md, px, py)) return { x: px, y: py };
+  const w = md.width || 20, h = md.height || 15;
+  const g = md.quizBattlePathArea;
+  let bestX = null, bestY = null, bestD = Infinity;
+  for (let ty = 0; ty < h; ty++) {
+    for (let tx = 0; tx < w; tx++) {
+      if (!g[ty] || g[ty][tx] !== 1) continue;
+      const nx = tx + 0.01;
+      const ny = ty + 0.01;
+      if (!quizBattleFootprintFullyOnPathServer(md, nx, ny)) continue;
+      if (!serverFootprintClearOfWalls(md, nx, ny)) continue;
+      const d = Math.abs(nx - px) + Math.abs(ny - py);
+      if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+    }
+  }
+  if (bestX != null) return { x: bestX, y: bestY };
+  for (let ty = 0; ty < h; ty++) {
+    for (let tx = 0; tx < w; tx++) {
+      if (!g[ty] || g[ty][tx] !== 1) continue;
+      const row = md.objects && md.objects[ty];
+      if (!row || row[tx] === 1) continue;
+      const nx = tx + 0.5;
+      const ny = ty + 0.5;
+      const d = Math.abs(nx - px) + Math.abs(ny - py);
+      if (d < bestD) { bestD = d; bestX = nx; bestY = ny; }
+    }
+  }
+  if (bestX != null) return { x: bestX, y: bestY };
+  return { x: px, y: py };
+}
+
+function normalizeJumpSurvivePlatformAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.jumpSurvivePlatformArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.jumpSurvivePlatformArea = rows;
+}
+
+function normalizeJumpSurvivePlatformVariantAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const pa = m.jumpSurvivePlatformArea || [];
+  const src = m.jumpSurvivePlatformVariantArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const row = [];
+    for (let x = 0; x < w; x++) {
+      const has = pa[y] && pa[y][x] === 1;
+      let v = has ? Math.floor(Number(src[y] && src[y][x])) : 0;
+      if (has && (!Number.isFinite(v) || v < 1)) v = 1;
+      if (v > 3) v = 3;
+      if (!has) v = 0;
+      row.push(v);
+    }
+    rows.push(row);
+  }
+  m.jumpSurvivePlatformVariantArea = rows;
+}
+
+function normalizeJumpSurviveHazardAreaOnMap(m) {
+  if (!m || m.gameType !== 'jump_survive') return;
+  const w = m.width || 20, h = m.height || 15;
+  const src = m.jumpSurviveHazardArea || [];
+  const rows = [];
+  for (let y = 0; y < h; y++) {
+    const r = src[y];
+    const row = [];
+    for (let x = 0; x < w; x++) row.push(r && r[x] === 1 ? 1 : 0);
+    rows.push(row);
+  }
+  m.jumpSurviveHazardArea = rows;
+}
+
+/**
+ * แมปภารกิจ Stack Tower (`mnn93hpi`): ปิดกล้องตามหอเสมอ · คลีน/จำกัดค่า stackTowerBgScroll (intro+loop แนวตั้ง) จาก JSON
+ */
+function applyStackTowerMissionMapPlayPolicy(safeId, m) {
+  if (safeId !== STACK_TOWER_MISSION_MAP_ID || !m || m.gameType !== 'stack') return;
+  const raw = m.stackTowerBgScroll && typeof m.stackTowerBgScroll === 'object' ? m.stackTowerBgScroll : {};
+  const dirRaw = String(raw.scrollDirection || raw.direction || 'down').toLowerCase();
+  const scrollDirection = (dirRaw === 'down' || dirRaw === 'top' || dirRaw === 'toptobottom') ? 'down' : 'up';
+  const spNum = Number(raw.speedPxPerSec);
+  const speedPxPerSec = Number.isFinite(spNum)
+    ? Math.max(0, Math.min(400, Math.floor(spNum)))
+    : 0;
+  const sel = Math.floor(Number(raw.stepEveryLayers));
+  const stepEveryLayers = Number.isFinite(sel) ? Math.max(0, Math.min(200, sel)) : 0;
+  const ssp = Math.floor(Number(raw.stepScrollPx));
+  const stepScrollPx = Number.isFinite(ssp) ? Math.max(0, Math.min(8000, ssp)) : 0;
+  const sam = Math.floor(Number(raw.stepAnimMs));
+  const stepAnimMs = Number.isFinite(sam) ? Math.max(120, Math.min(4000, sam)) : 520;
+  const st = {
+    enabled: raw.enabled === true,
+    speedPxPerSec,
+    scrollDirection,
+    stepEveryLayers,
+    stepScrollPx,
+    stepAnimMs,
+  };
+  if (typeof raw.introImage === 'string' && raw.introImage.length) st.introImage = raw.introImage;
+  if (typeof raw.loopImage === 'string' && raw.loopImage.length) st.loopImage = raw.loopImage;
+  const rg = Number(raw.releaseGapWorldPx);
+  if (Number.isFinite(rg) && rg >= 0) st.releaseGapWorldPx = Math.min(800, Math.floor(rg));
+  m.stackTowerBgScroll = st;
+  const rawCf = m.stackTowerCameraFollow && typeof m.stackTowerCameraFollow === 'object' ? m.stackTowerCameraFollow : {};
+  const pxPerLayer = Math.max(0, Math.min(80, Math.floor(Number(rawCf.pxPerLayer)) || 12));
+  const maxPx = Math.max(0, Math.min(800, Math.floor(Number(rawCf.maxPx)) || 260));
+  m.stackTowerCameraFollow = { enabled: false, pxPerLayer, maxPx };
+}
+
+function loadMaps() {
+  try {
+    if (!fs.existsSync(path.join(__dirname, 'data'))) fs.mkdirSync(path.join(__dirname, 'data'), { recursive: true });
+    if (!fs.existsSync(MAPS_DIR)) fs.mkdirSync(MAPS_DIR, { recursive: true });
+    if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+    const files = fs.readdirSync(MAPS_DIR);
+    for (const f of files) {
+      if (!f.endsWith('.json')) continue;
+      const id = f.slice(0, -5);
+      if (!safeMapId(id)) continue;
+      try {
+        const data = JSON.parse(fs.readFileSync(path.join(MAPS_DIR, f), 'utf8'));
+        normalizeQuizCarryLayersOnMap(data);
+        normalizeJumpSurvivePlatformAreaOnMap(data);
+        normalizeJumpSurvivePlatformVariantAreaOnMap(data);
+        normalizeJumpSurviveHazardAreaOnMap(data);
+        normalizeQuizBattleDomeAreaOnMap(data);
+        normalizeQuizBattlePathAreaOnMap(data);
+        applyStackTowerMissionMapPlayPolicy(id, data);
+        maps.set(id, data);
+      } catch (e) { console.error('load map', f, e.message); }
+    }
+  } catch (e) { console.error('loadMaps', e.message); }
+}
+
+/**
+ * อ่านแมปหนึ่งไฟล์จากดิสก์เข้า `maps` — ใช้ตอน GET /api/maps/:id เพื่อให้ deploy แก้ JSON แล้วมีผลทันที
+ * (เดิมโหลดครั้งเดียวตอนบูต · ถ้าแก้ไฟล์แล้วไม่รีสตาร์ท Node ลูกค้าได้ข้อมูลเก่า)
+ */
+function rehydrateSingleMapFromDisk(safeId) {
+  if (!safeId) return false;
+  const fp = path.join(MAPS_DIR, safeId + '.json');
+  if (!fs.existsSync(fp)) return false;
+  try {
+    const data = JSON.parse(fs.readFileSync(fp, 'utf8'));
+    normalizeQuizCarryLayersOnMap(data);
+    normalizeJumpSurvivePlatformAreaOnMap(data);
+    normalizeJumpSurvivePlatformVariantAreaOnMap(data);
+    normalizeJumpSurviveHazardAreaOnMap(data);
+    normalizeQuizBattleDomeAreaOnMap(data);
+    normalizeQuizBattlePathAreaOnMap(data);
+    applyStackTowerMissionMapPlayPolicy(safeId, data);
+    maps.set(safeId, data);
+    return true;
+  } catch (e) {
+    console.error('rehydrate map', safeId, e.message);
+    return false;
+  }
+}
+
+/** โหลด LobbyB จากไฟล์อีกครั้งถ้ายังไม่อยู่ใน memory (หลังรีสตาร์ท / ไฟล์เพิ่งวาง) */
+function ensurePostCaseLobbyMapLoaded() {
+  if (maps.has(POST_CASE_LOBBY_SPACE_ID)) return true;
+  try {
+    const fp = path.join(MAPS_DIR, POST_CASE_LOBBY_SPACE_ID + '.json');
+    if (!fs.existsSync(fp)) return false;
+    const data = JSON.parse(fs.readFileSync(fp, 'utf8'));
+    normalizeQuizCarryLayersOnMap(data);
+    maps.set(POST_CASE_LOBBY_SPACE_ID, data);
+    return true;
+  } catch (e) {
+    console.error('ensurePostCaseLobbyMapLoaded', e.message);
+    return false;
+  }
+}
+
+function saveMap(id, m) {
+  const safe = safeMapId(id);
+  if (!safe) return;
+  try {
+    if (!fs.existsSync(MAPS_DIR)) fs.mkdirSync(MAPS_DIR, { recursive: true });
+    fs.writeFileSync(path.join(MAPS_DIR, safe + '.json'), JSON.stringify(m, null, 0), 'utf8');
+  } catch (e) { console.error('saveMap', id, e.message); }
+}
+
+function isMapNameTaken(name, excludeId) {
+  const n = (name || '').trim().toLowerCase();
+  for (const [id, m] of maps) if (id !== excludeId && (m.name || '').trim().toLowerCase() === n) return true;
+  return false;
+}
+
+function applyDevCors(req, res) {
+  const origin = req.headers.origin;
+  if (origin && /^https?:\/\/(localhost|127\.0\.0\.1)(:\d+)?$/i.test(origin)) {
+    res.setHeader('Access-Control-Allow-Origin', origin);
+    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, PATCH, DELETE, OPTIONS');
+    res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
+    res.setHeader('Vary', 'Origin');
+  }
+}
+
+const server = http.createServer((req, res) => {
+  applyDevCors(req, res);
+  if (req.method === 'OPTIONS' && req.url && req.url.indexOf(BASE_PATH + '/api') === 0) {
+    res.writeHead(204);
+    res.end();
+    return;
+  }
+  let url = req.url;
+  if (url === BASE_PATH || url === BASE_PATH + '/') url = BASE_PATH + '/index.html';
+  if (url.startsWith(BASE_PATH + '/api/maps')) {
+    let id = url.replace(BASE_PATH + '/api/maps/', '').replace(BASE_PATH + '/api/maps', '').replace(/^\//, '').split('/')[0];
+    if (id.includes('?')) id = id.split('?')[0];
+    if (req.method === 'GET' && id) {
+      const sid = safeMapId(decodeURIComponent(id));
+      if (!sid) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบฉาก' }));
+      rehydrateSingleMapFromDisk(sid);
+      const m = maps.get(sid);
+      if (!m) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบฉาก' }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(m));
+    }
+    if (req.method === 'GET' && !id) {
+      const list = [...maps].map(([id, m]) => ({ id, name: m.name }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(list));
+    }
+    if (req.method === 'POST' && url === BASE_PATH + '/api/maps' || url === BASE_PATH + '/api/maps/') {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body);
+          const name = (d.name || '').trim() || 'ฉากใหม่';
+          if (isMapNameTaken(name)) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ชื่อฉากซ้ำ กรุณาตั้งชื่ออื่น' }));
+          const id = Date.now().toString(36);
+          const m = { ...defaultMap(), ...d, name };
+          if (!m.blockPlayer) m.blockPlayer = [];
+          if (!m.interactive) m.interactive = [];
+          if (!m.startGameArea) m.startGameArea = [];
+          if (!m.spawnArea) m.spawnArea = [];
+          if (!m.quizTrueArea) m.quizTrueArea = [];
+          if (!m.quizFalseArea) m.quizFalseArea = [];
+          if (!m.quizQuestionArea) m.quizQuestionArea = [];
+          if (!m.quizQuestions) m.quizQuestions = [];
+          if (!m.quizCarryHubArea) m.quizCarryHubArea = [];
+          if (!m.quizCarryOptionArea) m.quizCarryOptionArea = [];
+          if (!m.carryEmbedCountdownArea) m.carryEmbedCountdownArea = [];
+          if (!m.quizBattleDomeArea) m.quizBattleDomeArea = [];
+          if (!m.quizBattlePathArea) m.quizBattlePathArea = [];
+          if (!m.stackReleaseArea) m.stackReleaseArea = [];
+          if (!m.stackLandArea) m.stackLandArea = [];
+          if (!Array.isArray(m.jumpSurvivePlatforms)) m.jumpSurvivePlatforms = [];
+          if (!m.jumpSurvivePlatformArea) m.jumpSurvivePlatformArea = [];
+          if (!m.jumpSurvivePlatformVariantArea) m.jumpSurvivePlatformVariantArea = [];
+          if (!m.jumpSurviveHazardArea) m.jumpSurviveHazardArea = [];
+          normalizeQuizCarryLayersOnMap(m);
+          normalizeJumpSurvivePlatformAreaOnMap(m);
+          normalizeJumpSurvivePlatformVariantAreaOnMap(m);
+          normalizeJumpSurviveHazardAreaOnMap(m);
+          normalizeQuizBattleDomeAreaOnMap(m);
+          normalizeQuizBattlePathAreaOnMap(m);
+          maps.set(id, m);
+          saveMap(id, m);
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, mapId: id }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    if (req.method === 'PUT' && id && maps.has(id)) {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body);
+          const name = (d.name || '').trim() || maps.get(id).name;
+          if (isMapNameTaken(name, id)) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ชื่อฉากซ้ำ กรุณาตั้งชื่ออื่น' }));
+          const m = { ...maps.get(id), ...d, name };
+          if (!m.blockPlayer) m.blockPlayer = [];
+          if (!m.interactive) m.interactive = [];
+          if (!m.startGameArea) m.startGameArea = [];
+          if (!m.spawnArea) m.spawnArea = [];
+          if (!m.quizTrueArea) m.quizTrueArea = [];
+          if (!m.quizFalseArea) m.quizFalseArea = [];
+          if (!m.quizQuestionArea) m.quizQuestionArea = [];
+          if (!m.quizQuestions) m.quizQuestions = [];
+          if (!m.quizCarryHubArea) m.quizCarryHubArea = [];
+          if (!m.quizCarryOptionArea) m.quizCarryOptionArea = [];
+          if (!m.carryEmbedCountdownArea) m.carryEmbedCountdownArea = [];
+          if (!m.quizBattleDomeArea) m.quizBattleDomeArea = [];
+          if (!m.quizBattlePathArea) m.quizBattlePathArea = [];
+          if (!m.stackReleaseArea) m.stackReleaseArea = [];
+          if (!m.stackLandArea) m.stackLandArea = [];
+          if (!Array.isArray(m.jumpSurvivePlatforms)) m.jumpSurvivePlatforms = [];
+          if (!m.jumpSurvivePlatformArea) m.jumpSurvivePlatformArea = [];
+          if (!m.jumpSurvivePlatformVariantArea) m.jumpSurvivePlatformVariantArea = [];
+          if (!m.jumpSurviveHazardArea) m.jumpSurviveHazardArea = [];
+          normalizeQuizCarryLayersOnMap(m);
+          normalizeJumpSurvivePlatformAreaOnMap(m);
+          normalizeJumpSurvivePlatformVariantAreaOnMap(m);
+          normalizeJumpSurviveHazardAreaOnMap(m);
+          normalizeQuizBattleDomeAreaOnMap(m);
+          normalizeQuizBattlePathAreaOnMap(m);
+          applyStackTowerMissionMapPlayPolicy(id, m);
+          maps.set(id, m);
+          saveMap(id, m);
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, mapId: id }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+  }
+  const quizCarryDiskUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  const quizCarryDiskPaths = new Set([
+    BASE_PATH + '/api/quiz-carry-from-disk',
+    BASE_PATH + '/api-quiz-carry-from-disk.php',
+  ]);
+  if (quizCarryDiskPaths.has(quizCarryDiskUrlPath)) {
+    if (req.method === 'GET') {
+      const g = loadQuizSettings();
+      const slice = {
+        carryMapPanelTheme: g.carryMapPanelTheme,
+        carryEmbedCountdownTheme: g.carryEmbedCountdownTheme,
+        carryChoicePlaqueThemes: g.carryChoicePlaqueThemes,
+        carryChoicePlaqueTheme: g.carryChoicePlaqueTheme,
+        carryChoicePlaqueMapScale: g.carryChoicePlaqueMapScale,
+        carryReadMs: g.carryReadMs,
+        carryAnswerMs: g.carryAnswerMs,
+        carrySessionLength: g.carrySessionLength,
+        carryWalkSpeedMultForMapId: g.carryWalkSpeedMultForMapId,
+        carryWalkSpeedMult: g.carryWalkSpeedMult,
+        carryQuestions: g.carryQuestions,
+      };
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(slice));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const quizSettingsUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (quizSettingsUrlPath === BASE_PATH + '/api/quiz-settings') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadQuizSettings()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveQuizSettings(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({
+            ok: true,
+            battleQuizMcqSaved: saved.battleQuizMcqSaved,
+            carryQuestionsSaved: saved.carryQuestionsSaved,
+            specialQuizSets: saved.specialQuizSets,
+            carryMapPanelTheme: saved.carryMapPanelTheme,
+            carryEmbedCountdownTheme: saved.carryEmbedCountdownTheme,
+            carryChoicePlaqueThemes: saved.carryChoicePlaqueThemes,
+            carryChoicePlaqueTheme: saved.carryChoicePlaqueTheme,
+            carryChoicePlaqueMapScale: saved.carryChoicePlaqueMapScale,
+          }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const evidenceCardsUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (evidenceCardsUrlPath === BASE_PATH + '/api/evidence-cards') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadEvidenceCards()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveEvidenceCards(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({ ok: true, cases: saved.cases }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const evidenceImagesUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (evidenceImagesUrlPath === BASE_PATH + '/api/evidence-card-images') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify({ images: listEvidenceCardImages(), pools: evidencePoolCounts(), dirs: EVIDENCE_IMAGE_DIRS }));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const caseMediaUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (caseMediaUrlPath === BASE_PATH + '/api/case-media') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify(loadCaseMedia()));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveCaseMedia(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          return res.end(JSON.stringify({ ok: true, cases: saved.cases }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const caseMediaImagesUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (caseMediaImagesUrlPath === BASE_PATH + '/api/case-media-images') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        Pragma: 'no-cache',
+      });
+      return res.end(JSON.stringify({ images: listCaseMediaImages(), count: CASE_MEDIA_COUNT }));
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const gameTimingUrlPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (gameTimingUrlPath === BASE_PATH + '/api/game-timing') {
+    if (req.method === 'GET') {
+      res.writeHead(200, {
+        'Content-Type': 'application/json; charset=utf-8',
+        'Cache-Control': 'no-store, no-cache, must-revalidate',
+        'Pragma': 'no-cache',
+      });
+      return res.end(JSON.stringify({ ...runtimeGameTiming }));
+    }
+    if (req.method === 'PUT') {
+      let body = '';
+      req.on('data', (c) => { body += c; });
+      req.on('end', () => {
+        res.setHeader('Content-Type', 'application/json; charset=utf-8');
+        res.setHeader('Cache-Control', 'no-store');
+        try {
+          const d = JSON.parse(body || '{}');
+          const saved = saveGameTimingToFile(d);
+          if (!saved.ok) {
+            res.writeHead(500);
+            return res.end(JSON.stringify({ ok: false, error: saved.error || 'บันทึกไม่ได้' }));
+          }
+          res.writeHead(200);
+          const { ok: _ok, error: _err, ...timingRest } = saved;
+          return res.end(JSON.stringify({ ok: true, ...timingRest }));
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+    res.writeHead(405);
+    return res.end(JSON.stringify({ ok: false, error: 'Method not allowed' }));
+  }
+  const gaAssetsApiPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'GET') {
+    res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+    return res.end(JSON.stringify({ ok: true, items: listGauntletAssetsApi() }));
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets/upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const dataUrl = d.imageDataUrl;
+        if (!dataUrl || typeof dataUrl !== 'string') {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ต้องส่ง imageDataUrl (data URL รูป)' }));
+        }
+        const m = dataUrl.match(/^data:image\/(png|jpeg|jpg|gif|webp);base64,([\s\S]+)$/i);
+        if (!m) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'รองรับเฉพาะ png / jpg / gif / webp' }));
+        }
+        const extRaw = m[1].toLowerCase();
+        const ext = extRaw === 'jpeg' ? 'jpg' : extRaw;
+        const b64 = m[2].replace(/\s/g, '');
+        let buf;
+        try {
+          buf = Buffer.from(b64, 'base64');
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'base64 ไม่ถูกต้อง' }));
+        }
+        if (buf.length < 16 || buf.length > 4 * 1024 * 1024) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ขนาดไฟล์ต้องอยู่ระหว่าง 16 ไบต์ ถึง 4 MB' }));
+        }
+        ensureGauntletAssetsDir();
+        const labelIn = d.label != null ? String(d.label).trim().slice(0, 120) : '';
+        const replaceFilename = d.replaceFilename != null ? String(d.replaceFilename) : '';
+        let fname;
+        if (replaceFilename) {
+          const s = safeGauntletStoredFilename(replaceFilename);
+          if (!s) {
+            res.writeHead(400);
+            return res.end(JSON.stringify({ ok: false, error: 'ชื่อไฟล์แทนที่ไม่ถูกต้อง' }));
+          }
+          const cur = path.join(GAUNTLET_ASSETS_DIR, s);
+          if (!fs.existsSync(cur)) {
+            res.writeHead(404);
+            return res.end(JSON.stringify({ ok: false, error: 'ไม่พบไฟล์เดิม' }));
+          }
+          const norm = (e) => {
+            let x = String(e || '').toLowerCase();
+            if (x.startsWith('.')) x = x.slice(1);
+            return x === 'jpeg' ? 'jpg' : x;
+          };
+          if (norm(path.extname(s)) !== norm(ext)) {
+            res.writeHead(400);
+            return res.end(JSON.stringify({ ok: false, error: 'นามสกุลรูปใหม่ต้องตรงกับไฟล์เดิม' }));
+          }
+          fname = s;
+        } else {
+          fname = `gauntlet-${crypto.randomBytes(8).toString('hex')}.${ext}`;
+        }
+        fs.writeFileSync(path.join(GAUNTLET_ASSETS_DIR, fname), buf);
+        const meta = loadGauntletAssetsMeta();
+        const prev = meta[fname] || {};
+        meta[fname] = {
+          ...prev,
+          label: labelIn || prev.label || fname,
+          updatedAt: Date.now(),
+        };
+        saveGauntletAssetsMeta(meta);
+        res.writeHead(200);
+        return res.end(JSON.stringify({
+          ok: true,
+          filename: fname,
+          url: BASE_PATH + '/img/gauntlet-assets/' + fname,
+        }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  const qCarryPlaqueUploadPath = url.split('?')[0].replace(/\/+$/, '') || '/';
+  if (qCarryPlaqueUploadPath === BASE_PATH + '/api/quiz-carry-plaque-upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const dataUrl = d.imageDataUrl;
+        if (!dataUrl || typeof dataUrl !== 'string') {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ต้องส่ง imageDataUrl (data URL รูป)' }));
+        }
+        const m = dataUrl.match(/^data:image\/(png|jpeg|jpg|gif|webp);base64,([\s\S]+)$/i);
+        if (!m) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'รองรับเฉพาะ png / jpg / gif / webp' }));
+        }
+        const extRaw = m[1].toLowerCase();
+        const ext = extRaw === 'jpeg' ? 'jpg' : extRaw;
+        const b64 = m[2].replace(/\s/g, '');
+        let buf;
+        try {
+          buf = Buffer.from(b64, 'base64');
+        } catch (e) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'base64 ไม่ถูกต้อง' }));
+        }
+        if (buf.length < 16 || buf.length > 4 * 1024 * 1024) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'ขนาดไฟล์ต้องอยู่ระหว่าง 16 ไบต์ ถึง 4 MB' }));
+        }
+        ensureQuizCarryPlaqueAssetsDir();
+        const fname = `qcarry-${crypto.randomBytes(8).toString('hex')}.${ext}`;
+        fs.writeFileSync(path.join(QUIZ_CARRY_PLAQUE_ASSETS_DIR, fname), buf);
+        res.writeHead(200);
+        return res.end(JSON.stringify({
+          ok: true,
+          filename: fname,
+          url: BASE_PATH + '/img/quiz-carry-plaque-assets/' + fname,
+        }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'PATCH') {
+    let body = '';
+    req.on('data', (c) => { body += c; });
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const fname = safeGauntletStoredFilename(d.filename);
+        if (!fname) {
+          res.writeHead(400);
+          return res.end(JSON.stringify({ ok: false, error: 'filename ไม่ถูกต้อง' }));
+        }
+        const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+        if (!fs.existsSync(fp)) {
+          res.writeHead(404);
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่พบไฟล์' }));
+        }
+        const meta = loadGauntletAssetsMeta();
+        const label = d.label != null ? String(d.label).trim().slice(0, 120) : '';
+        meta[fname] = { ...(meta[fname] || {}), label: label || fname, updatedAt: Date.now() };
+        saveGauntletAssetsMeta(meta);
+        res.writeHead(200);
+        return res.end(JSON.stringify({ ok: true, filename: fname, label: meta[fname].label }));
+      } catch (e) {
+        res.writeHead(400);
+        return res.end(JSON.stringify({ ok: false, error: e.message || 'บันทึกไม่ได้' }));
+      }
+    });
+    return;
+  }
+  if (gaAssetsApiPath === BASE_PATH + '/api/gauntlet-assets' && req.method === 'DELETE') {
+    try {
+      const q = url.includes('?') ? url.split('?')[1] : '';
+      const sp = new URLSearchParams(q);
+      const rawFn = sp.get('file');
+      const fname = safeGauntletStoredFilename(rawFn);
+      if (!fname) {
+        res.writeHead(400, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: 'ระบุ file ไม่ถูกต้อง' }));
+      }
+      const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+      if (fs.existsSync(fp)) fs.unlinkSync(fp);
+      const meta = loadGauntletAssetsMeta();
+      delete meta[fname];
+      saveGauntletAssetsMeta(meta);
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: true }));
+    } catch (e) {
+      res.writeHead(500, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: false, error: 'ลบไม่สำเร็จ' }));
+    }
+  }
+  if (url === BASE_PATH + '/api/characters' && req.method === 'GET') {
+    try {
+      if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+      const files = fs.readdirSync(CHARACTERS_DIR);
+      const ids = new Set();
+      const ext = /\.(png|jpg|jpeg|gif|webp)$/i;
+      files.forEach(f => {
+        let m = f.match(/^(.+)_(up|down|left|right)(?:_\d+)?\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)(?:_\d+)?_layer_[a-zA-Z]+\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)_idle(?:_\d+)?_layer_[a-zA-Z]+\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+        m = f.match(/^(.+)_(up|down|left|right)_idle(?:_\d+)?\.(png|jpg|jpeg|gif|webp)$/i);
+        if (m) ids.add(m[1]);
+      });
+      const idArr = [...ids];
+      const oldestMsById = {};
+      idArr.forEach((id) => {
+        let oldest = Infinity;
+        const prefix = id + '_';
+        files.forEach((f) => {
+          if (!f.startsWith(prefix) || !ext.test(f)) return;
+          try {
+            const st = fs.statSync(path.join(CHARACTERS_DIR, f));
+            const t = st.mtimeMs != null ? st.mtimeMs : st.mtime.getTime();
+            if (t < oldest) oldest = t;
+          } catch (e) { /* ignore */ }
+        });
+        oldestMsById[id] = oldest === Infinity ? 0 : oldest;
+      });
+      idArr.sort((a, b) => {
+        const ta = oldestMsById[a] || 0;
+        const tb = oldestMsById[b] || 0;
+        if (ta !== tb) return ta - tb;
+        return String(a).localeCompare(String(b));
+      });
+      const list = idArr.map((id) => {
+        const prefix = id + '_';
+        const hasLayerFiles = files.some((f) => f.startsWith(prefix) && f.includes('_layer_') && ext.test(f));
+        const layerNameSet = new Set();
+        if (hasLayerFiles) {
+          files.forEach((f) => {
+            if (!f.startsWith(prefix) || !ext.test(f)) return;
+            let m = f.match(/_(?:up|down|left|right)_idle(?:_\d+)?_layer_([a-zA-Z]+)\.[^.]+$/i);
+            if (m) {
+              layerNameSet.add(m[1]);
+              return;
+            }
+            m = f.match(/_(?:up|down|left|right)(?:_\d+)?_layer_([a-zA-Z]+)\.[^.]+$/i);
+            if (m) layerNameSet.add(m[1]);
+          });
+        }
+        const layers = layerNameSet.size ? [...layerNameSet].sort() : [];
+        const layerManifest = hasLayerFiles ? buildCharacterLayerManifest(id, files) : null;
+        return { id, name: id, hasLayerFiles, layers, layerManifest };
+      });
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify(list));
+    } catch (e) {
+      res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify([]));
+    }
+  }
+  const urlPath = url.split('?')[0];
+  {
+    const lm = urlPath.match(new RegExp('^' + String(BASE_PATH).replace(/\//g, '\\/') + '\\/api\\/characters\\/([^/]+)\\/layer-manifest$'));
+    if (lm && req.method === 'GET') {
+      const id = decodeURIComponent(lm[1] || '').replace(/[^a-z0-9_-]/gi, '');
+      if (!id) {
+        res.writeHead(400, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: 'id ไม่ถูกต้อง', byDir: {}, byDirIdle: {} }));
+      }
+      try {
+        if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+        const files = fs.readdirSync(CHARACTERS_DIR);
+        const manifest = buildCharacterLayerManifest(id, files);
+        res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify(manifest));
+      } catch (e) {
+        res.writeHead(500, { 'Content-Type': 'application/json; charset=utf-8' });
+        return res.end(JSON.stringify({ ok: false, error: e.message || 'manifest fail', byDir: {}, byDirIdle: {} }));
+      }
+    }
+  }
+  if (urlPath.startsWith(BASE_PATH + '/api/characters/') && req.method === 'DELETE') {
+    if (/\/layer-manifest$/i.test(urlPath)) {
+      res.writeHead(405, { 'Content-Type': 'application/json; charset=utf-8' });
+      return res.end(JSON.stringify({ ok: false, error: 'ใช้ GET เท่านั้น' }));
+    }
+    const idRaw = decodeURIComponent(urlPath.slice((BASE_PATH + '/api/characters/').length));
+    const id = (idRaw || '').replace(/[^a-z0-9_-]/gi, '');
+    if (!id) {
+      res.writeHead(400, { 'Content-Type': 'application/json' });
+      return res.end(JSON.stringify({ ok: false, error: 'id ไม่ถูกต้อง' }));
+    }
+    try {
+      if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+      const files = fs.readdirSync(CHARACTERS_DIR);
+      const esc = id.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
+      const re = new RegExp('^' + esc + '_(up|down|left|right)(?:_\\d+)?\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const idleRe = new RegExp('^' + esc + '_(up|down|left|right)_idle(?:_\\d+)?\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const layerRe = new RegExp('^' + esc + '_(up|down|left|right)(?:_\\d+)?_layer_[a-zA-Z]+\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      const layerIdleRe = new RegExp('^' + esc + '_(up|down|left|right)_idle(?:_\\d+)?_layer_[a-zA-Z]+\\.(png|jpg|jpeg|gif|webp)$', 'i');
+      let removed = 0;
+      files.forEach(f => {
+        if (re.test(f) || idleRe.test(f) || layerRe.test(f) || layerIdleRe.test(f)) {
+          try {
+            fs.unlinkSync(path.join(CHARACTERS_DIR, f));
+            removed++;
+          } catch (e) {
+            // ignore single file errors
+          }
+        }
+      });
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ ok: true, removed }));
+    } catch (e) {
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ ok: false, error: 'ลบไม่สำเร็จ: ' + (e.message || '') }));
+    }
+    return;
+  }
+  if (urlPath === BASE_PATH + '/api/characters/upload' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      try {
+        if (!body || body.length < 2) {
+          res.writeHead(400, { 'Content-Type': 'application/json' });
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่มีข้อมูล (เลือกรูปแล้วกดอัปโหลด)' }));
+        }
+        const d = JSON.parse(body);
+        const dirs = ['up', 'down', 'left', 'right'];
+        const id = (d.name || '').trim().replace(/[^a-z0-9_-]/gi, '') || 'char-' + Date.now();
+        if (!fs.existsSync(CHARACTERS_DIR)) fs.mkdirSync(CHARACTERS_DIR, { recursive: true });
+        const ALLOWED_LAYER = { shadow: 1, bodyColor: 1, bodyStroke: 1, headColor: 1, headStroke: 1, hairColor: 1, hairStroke: 1, face: 1 };
+        let walkWritten = 0;
+        for (const dir of dirs) {
+          let data = d[dir];
+          if (!data) continue;
+          const list = Array.isArray(data) ? data : [data];
+          let frameIndex = 0;
+          for (const dataUrl of list) {
+            if (!dataUrl || typeof dataUrl !== 'string') continue;
+            const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+            if (!m) continue;
+            const b64 = m[1].replace(/\s/g, '');
+            if (!b64.length) continue;
+            let buf;
+            try {
+              buf = Buffer.from(b64, 'base64');
+            } catch (err) {
+              continue;
+            }
+            if (buf.length === 0) continue;
+            // เขียนไฟล์เฟรม (สำหรับ animation)
+            const fnameFrame = list.length > 1 ? (id + '_' + dir + '_' + frameIndex + '.png') : (id + '_' + dir + '.png');
+            fs.writeFileSync(path.join(CHARACTERS_DIR, fnameFrame), buf);
+            // ถ้ามีหลายเฟรม ให้เฟรมแรกซ้ำไปเป็นไฟล์หลัก <id>_<dir>.png เพื่อใช้เป็น preview / fallback
+            if (list.length > 1 && frameIndex === 0) {
+              const baseName = id + '_' + dir + '.png';
+              fs.writeFileSync(path.join(CHARACTERS_DIR, baseName), buf);
+            }
+            walkWritten++;
+            frameIndex++;
+          }
+        }
+        let layerWritten = 0;
+        // ไฟล์เลเยอร์แยก (ให้หน้า play ย้อม bodyColor / hairColor / headColor ตามส่วน — ตรงกับ character.html)
+        const lf = d.layerFrames;
+        if (lf && typeof lf === 'object') {
+          for (const dir of dirs) {
+            const arr = lf[dir];
+            if (!Array.isArray(arr)) continue;
+            const multi = arr.length > 1;
+            arr.forEach((frameObj, frameIndex) => {
+              if (!frameObj || typeof frameObj !== 'object') return;
+              for (const layerName of Object.keys(frameObj)) {
+                if (!ALLOWED_LAYER[layerName]) continue;
+                const dataUrl = frameObj[layerName];
+                if (!dataUrl || typeof dataUrl !== 'string') continue;
+                const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+                if (!m) continue;
+                const b64 = m[1].replace(/\s/g, '');
+                if (!b64.length) continue;
+                let buf;
+                try {
+                  buf = Buffer.from(b64, 'base64');
+                } catch (err) {
+                  continue;
+                }
+                if (buf.length === 0) continue;
+                const fnameLayer = multi
+                  ? (id + '_' + dir + '_' + frameIndex + '_layer_' + layerName + '.png')
+                  : (id + '_' + dir + '_layer_' + layerName + '.png');
+                fs.writeFileSync(path.join(CHARACTERS_DIR, fnameLayer), buf);
+                layerWritten++;
+              }
+            });
+          }
+        }
+        const lfIdle = d.layerFramesIdle;
+        if (lfIdle && typeof lfIdle === 'object') {
+          for (const dir of dirs) {
+            const arr = lfIdle[dir];
+            if (!Array.isArray(arr)) continue;
+            const multi = arr.length > 1;
+            arr.forEach((frameObj, frameIndex) => {
+              if (!frameObj || typeof frameObj !== 'object') return;
+              for (const layerName of Object.keys(frameObj)) {
+                if (!ALLOWED_LAYER[layerName]) continue;
+                const dataUrl = frameObj[layerName];
+                if (!dataUrl || typeof dataUrl !== 'string') continue;
+                const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+                if (!m) continue;
+                const b64 = m[1].replace(/\s/g, '');
+                if (!b64.length) continue;
+                let buf;
+                try {
+                  buf = Buffer.from(b64, 'base64');
+                } catch (err) {
+                  continue;
+                }
+                if (buf.length === 0) continue;
+                const fnameLayer = multi
+                  ? (id + '_' + dir + '_idle_' + frameIndex + '_layer_' + layerName + '.png')
+                  : (id + '_' + dir + '_idle_layer_' + layerName + '.png');
+                fs.writeFileSync(path.join(CHARACTERS_DIR, fnameLayer), buf);
+                layerWritten++;
+              }
+            });
+          }
+        }
+        const idleObj = d.idle && typeof d.idle === 'object' ? d.idle : null;
+        if (idleObj) {
+          for (const dir of dirs) {
+            let data = idleObj[dir];
+            if (!data) continue;
+            const list = Array.isArray(data) ? data : [data];
+            let frameIndex = 0;
+            for (const dataUrl of list) {
+              if (!dataUrl || typeof dataUrl !== 'string') continue;
+              const m = dataUrl.match(/^data:image\/[\w+]+;base64,([\s\S]+)$/);
+              if (!m) continue;
+              const b64 = m[1].replace(/\s/g, '');
+              if (!b64.length) continue;
+              let buf;
+              try {
+                buf = Buffer.from(b64, 'base64');
+              } catch (err) {
+                continue;
+              }
+              if (buf.length === 0) continue;
+              const fnameFrame = list.length > 1
+                ? (id + '_' + dir + '_idle_' + frameIndex + '.png')
+                : (id + '_' + dir + '_idle.png');
+              fs.writeFileSync(path.join(CHARACTERS_DIR, fnameFrame), buf);
+              if (list.length > 1 && frameIndex === 0) {
+                const baseName = id + '_' + dir + '_idle.png';
+                fs.writeFileSync(path.join(CHARACTERS_DIR, baseName), buf);
+              }
+              frameIndex++;
+            }
+          }
+        }
+        if (walkWritten === 0 && layerWritten === 0) {
+          res.writeHead(400, { 'Content-Type': 'application/json' });
+          return res.end(JSON.stringify({ ok: false, error: 'ไม่มีรูปที่อัปโหลดได้ (ต้องมีรูปเดินหรือเลเยอร์อย่างน้อยหนึ่งทิศ)' }));
+        }
+        res.writeHead(200, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ ok: true, characterId: id }));
+      } catch (e) {
+        res.writeHead(400, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ ok: false, error: 'อัปโหลดไม่สำเร็จ: ' + (e.message || '') }));
+      }
+    });
+    return;
+  }
+  if (url.startsWith(BASE_PATH + '/api/spaces')) {
+    const parts = url.slice((BASE_PATH + '/api/spaces').length).split('/').filter(Boolean);
+    const spaceId = parts[0];
+    if (req.method === 'GET' && !spaceId) {
+      const now = Date.now();
+      for (const [id, s] of [...spaces.entries()]) {
+        if (s.isPrivate || id === POST_CASE_LOBBY_SPACE_ID) continue;
+        const n = s.peers ? s.peers.size : 0;
+        if (n !== 0) continue;
+        const created = s.createdAt;
+        const stale = created == null || now - created > SPACE_EMPTY_TTL_MS;
+        if (stale) spaces.delete(id);
+      }
+      const list = [...spaces]
+        .filter(([, s]) => !s.isPrivate)
+        .filter(([, s]) => (s.peers && s.peers.size > 0))
+        .map(([id, s]) => ({
+          spaceId: id,
+          spaceName: s.spaceName || id,
+          mapName: (s.mapData && s.mapData.name) || '—',
+          peerCount: s.peers ? s.peers.size : 0,
+          maxPlayers: s.maxPlayers || 10
+        }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify(list));
+    }
+    if (req.method === 'GET' && spaceId) {
+      const s = spaces.get(spaceId);
+      if (!s) return res.writeHead(404), res.end(JSON.stringify({ error: 'ไม่พบห้อง' }));
+      return res.writeHead(200, { 'Content-Type': 'application/json' }), res.end(JSON.stringify({ ok: true, mapName: s.mapData?.name }));
+    }
+    if (req.method === 'POST' && !spaceId) {
+      let body = '';
+      req.on('data', c => body += c);
+      req.on('end', () => {
+        try {
+          const d = JSON.parse(body || '{}');
+          const mapData = d.mapId ? maps.get(d.mapId) : null;
+          if (!mapData) return res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ไม่พบฉาก' }));
+          const isPrivate = !!d.isPrivate;
+          let sid;
+          if (isPrivate) {
+            const chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
+            let code;
+            for (let i = 0; i < 20; i++) {
+              code = '';
+              for (let j = 0; j < 6; j++) code += chars[Math.floor(Math.random() * chars.length)];
+              if (!spaces.has(code)) { sid = code; break; }
+            }
+            if (!sid) sid = 'priv-' + Date.now();
+          } else {
+            const base = (d.name || '').trim() || 'space';
+            sid = base + '-' + Date.now();
+          }
+          const spaceName = (d.name || '').trim() || (isPrivate ? 'ห้องส่วนตัว' : sid);
+          let maxPlayers = parseInt(d.maxPlayers, 10);
+          if (isNaN(maxPlayers) || maxPlayers < 1) maxPlayers = 10;
+          maxPlayers = Math.min(10, Math.max(1, maxPlayers));
+          if (mapData.gameType === 'gauntlet' || mapData.gameType === 'space_shooter' || mapData.gameType === 'balloon_boss') maxPlayers = Math.min(maxPlayers, 6);
+          const mapId = d.mapId ? String(d.mapId).trim() : null;
+          const previewEditorTest = isPrivate && String(spaceName).toLowerCase() === 'preview';
+          let botSlotCount = parseInt(d.botSlotCount, 10);
+          if (isNaN(botSlotCount) || botSlotCount < 0) botSlotCount = 0;
+          botSlotCount = effectiveBotSlotCount({ botSlotCount, maxPlayers });
+          spaces.set(sid, {
+            mapData, mapId, peers: new Map(), spaceName, hostId: null, isPrivate, maxPlayers, createdAt: Date.now(),
+            previewEditorTest,
+            botSlotCount,
+            suspectCardMinigames: null,
+            suspectPhaseActive: false,
+            suspectPickIndex: 0,
+            detectiveMinigameActive: false,
+          });
+          res.writeHead(200, { 'Content-Type': 'application/json' });
+          res.end(JSON.stringify({ ok: true, spaceId: sid, roomCode: isPrivate ? sid : null }));
+        } catch (e) {
+          res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+        }
+      });
+      return;
+    }
+  }
+  if (url === BASE_PATH + '/api/ice-servers' && req.method === 'GET') {
+    function sendIceServers(iceServers) {
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ iceServers: iceServers || [] }));
+    }
+    function fallback() {
+      const iceServers = [{ urls: 'stun:stun.l.google.com:19302' }, { urls: 'stun:stun1.l.google.com:19302' }];
+      const turnUrl = process.env.TURN_SERVER || process.env.TURN_URL;
+      const turnUser = process.env.TURN_USER;
+      const turnCred = process.env.TURN_CRED;
+      if (turnUrl && turnUser && turnCred) iceServers.push({ urls: turnUrl, username: turnUser, credential: turnCred });
+      sendIceServers(iceServers);
+    }
+    const meteredKey = process.env.METERED_TURN_API_KEY || process.env.METERED_TURN_SECRET_KEY;
+    const meteredAppId = process.env.METERED_TURN_APP_ID;
+    let meteredBase = process.env.METERED_TURN_URL;
+    if (!meteredBase) {
+      let meteredHost = process.env.METERED_TURN_SUBDOMAIN || 'openrelayprojectsecret';
+      if (meteredHost.indexOf('metered.live') === -1) meteredHost = meteredHost + '.metered.live';
+      meteredBase = 'https://' + meteredHost;
+    }
+    meteredBase = meteredBase.replace(/\/$/, '');
+    if (meteredKey) {
+      function tryNext(credUrl) {
+        return fetch(credUrl).then(function (r) { return r.json(); }).then(function (data) {
+          if (data && (data.error || data.message)) throw new Error(data.error || data.message);
+          const list = Array.isArray(data) ? data : (data && data.iceServers);
+          if (list && list.length) return sendIceServers(list);
+          if (data && data.data && Array.isArray(data.data) && data.data.length) {
+            const turnHost = process.env.METERED_TURN_HOST || 'global.relay.metered.ca';
+            const built = data.data.map(function (c) {
+              return { urls: 'turn:' + turnHost + ':443', username: c.username, credential: c.password };
+            });
+            return sendIceServers(built);
+          }
+          throw new Error('No iceServers');
+        });
+      }
+      const urlsToTry = [
+        meteredBase + '/api/v1/turn/credentials?apiKey=' + encodeURIComponent(meteredKey),
+        meteredBase + '/api/v1/turn/credentials?apiKey=' + encodeURIComponent(meteredAppId || meteredKey),
+        meteredBase + '/api/v2/turn/credentials?secretKey=' + encodeURIComponent(meteredKey)
+      ];
+      let p = tryNext(urlsToTry[0]);
+      for (let i = 1; i < urlsToTry.length; i++) {
+        p = p.catch(function () { return tryNext(urlsToTry[i]); });
+      }
+      p.catch(fallback);
+      return;
+    }
+    const iceServers = [{ urls: 'stun:stun.l.google.com:19302' }, { urls: 'stun:stun1.l.google.com:19302' }];
+    const turnUrl = process.env.TURN_SERVER || process.env.TURN_URL;
+    const turnUser = process.env.TURN_USER;
+    const turnCred = process.env.TURN_CRED;
+    if (turnUrl && turnUser && turnCred) iceServers.push({ urls: turnUrl, username: turnUser, credential: turnCred });
+    sendIceServers(iceServers);
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-admin-login' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json');
+      try {
+        const d = JSON.parse(body || '{}');
+        const password = (d.password || '').trim();
+        if (password !== ADMIN_PASSWORD) {
+          return res.writeHead(401), res.end(JSON.stringify({ ok: false, error: 'รหัสผ่านไม่ถูกต้อง' }));
+        }
+        const token = require('crypto').randomBytes(24).toString('hex');
+        adminTokens.add(token);
+        res.setHeader('Set-Cookie', 'game_ai_admin=' + token + '; Path=' + BASE_PATH + '; HttpOnly; Max-Age=86400; SameSite=Lax');
+        res.writeHead(200);
+        res.end(JSON.stringify({ ok: true }));
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ ok: false, error: 'ข้อมูลไม่ถูกต้อง' }));
+      }
+    });
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-settings' && req.method === 'GET') {
+    const token = getAdminToken(req.headers.cookie);
+    if (!token) return res.writeHead(401), res.end(JSON.stringify({ error: 'ต้องล็อกอินก่อน' }));
+    const s = loadAiSettings();
+    res.writeHead(200, { 'Content-Type': 'application/json' });
+    res.end(JSON.stringify({
+      model: s.model || 'gpt-4o-mini',
+      models: AI_MODELS,
+      hasKey: !!(s.openai_api_key && s.openai_api_key.length > 0),
+      intent: s.intent != null ? s.intent : '',
+      rag_enabled: !!s.rag_enabled,
+      rag_context: s.rag_context != null ? s.rag_context : '',
+    }));
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-settings' && req.method === 'PUT') {
+    const token = getAdminToken(req.headers.cookie);
+    if (!token) return res.writeHead(401), res.end(JSON.stringify({ error: 'ต้องล็อกอินก่อน' }));
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json');
+      try {
+        const d = JSON.parse(body || '{}');
+        const s = loadAiSettings();
+        if (d.openai_api_key !== undefined) s.openai_api_key = String(d.openai_api_key).trim();
+        if (d.model !== undefined) s.model = String(d.model).trim() || 'gpt-4o-mini';
+        if (d.intent !== undefined) s.intent = String(d.intent);
+        if (d.rag_enabled !== undefined) s.rag_enabled = !!d.rag_enabled;
+        if (d.rag_context !== undefined) s.rag_context = String(d.rag_context);
+        saveAiSettings(s);
+        res.writeHead(200);
+        res.end(JSON.stringify({ ok: true }));
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ ok: false, error: e.message }));
+      }
+    });
+    return;
+  }
+  if (url === BASE_PATH + '/api/ai-chat' && req.method === 'POST') {
+    let body = '';
+    req.on('data', c => body += c);
+    req.on('end', () => {
+      res.setHeader('Content-Type', 'application/json; charset=utf-8');
+      try {
+        const d = JSON.parse(body || '{}');
+        const message = (d.message || d.text || '').trim();
+        if (!message) return res.writeHead(400), res.end(JSON.stringify({ error: 'ไม่มีข้อความ' }));
+        const s = loadAiSettings();
+        if (!s.openai_api_key) return res.writeHead(503), res.end(JSON.stringify({ error: 'ยังไม่ได้ตั้งค่า OpenAI API Key ในหน้า Admin' }));
+        const model = s.model || 'gpt-4o-mini';
+        const messages = [];
+        const systemParts = [];
+        if (s.intent && String(s.intent).trim()) systemParts.push(String(s.intent).trim());
+        if (s.rag_enabled && s.rag_context && String(s.rag_context).trim()) {
+          systemParts.push('ความรู้/บริบทเพิ่มเติม (ใช้ประกอบการตอบ):\n' + String(s.rag_context).trim());
+        }
+        if (systemParts.length) messages.push({ role: 'system', content: systemParts.join('\n\n') });
+        messages.push({ role: 'user', content: message });
+        const payload = JSON.stringify({
+          model: model,
+          messages: messages,
+          max_tokens: 500,
+        });
+        const urlObj = new URL('https://api.openai.com/v1/chat/completions');
+        const opts = {
+          hostname: urlObj.hostname,
+          path: urlObj.pathname,
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'Authorization': 'Bearer ' + s.openai_api_key,
+            'Content-Length': Buffer.byteLength(payload, 'utf8'),
+          },
+        };
+        const reqOut = require('https').request(opts, (resOut) => {
+          let data = '';
+          resOut.on('data', chunk => data += chunk);
+          resOut.on('end', () => {
+            try {
+              const parsed = JSON.parse(data);
+              const text = parsed.choices && parsed.choices[0] && parsed.choices[0].message && parsed.choices[0].message.content;
+              if (text != null) {
+                res.writeHead(200);
+                res.end(JSON.stringify({ response: String(text).trim() }));
+              } else {
+                res.writeHead(502);
+                res.end(JSON.stringify({ error: parsed.error && parsed.error.message ? parsed.error.message : 'OpenAI error' }));
+              }
+            } catch (e) {
+              res.writeHead(502), res.end(JSON.stringify({ error: 'Invalid response from OpenAI' }));
+            }
+          });
+        });
+        reqOut.on('error', (e) => { res.writeHead(502), res.end(JSON.stringify({ error: e.message })); });
+        reqOut.write(payload);
+        reqOut.end();
+      } catch (e) {
+        res.writeHead(400), res.end(JSON.stringify({ error: e.message }));
+      }
+    });
+    return;
+  }
+  if (url.startsWith(BASE_PATH + '/img/characters/') && (req.method === 'GET' || req.method === 'HEAD')) {
+    const sub = url.slice((BASE_PATH + '/img/characters/').length).split('?')[0];
+    const fname = path.basename(sub).replace(/[^a-z0-9_.-]/gi, '');
+    if (fname && fname.length > 0) {
+      const fp = path.join(CHARACTERS_DIR, fname);
+      if (fs.existsSync(fp)) {
+        return fs.readFile(fp, (err, data) => {
+          if (err) return res.writeHead(500), res.end();
+          res.writeHead(200, { 'Content-Type': 'image/png' });
+          if (req.method === 'HEAD') return res.end();
+          res.end(data);
+        });
+      }
+    }
+  }
+  if (url.startsWith(BASE_PATH + '/img/gauntlet-assets/') && req.method === 'GET') {
+    const sub = decodeURIComponent(url.slice((BASE_PATH + '/img/gauntlet-assets/').length).split('?')[0]);
+    const fname = safeGauntletStoredFilename(sub);
+    if (!fname) {
+      res.writeHead(400);
+      return res.end();
+    }
+    const fp = path.join(GAUNTLET_ASSETS_DIR, fname);
+    if (!fs.existsSync(fp)) {
+      res.writeHead(404);
+      return res.end();
+    }
+    const ext = path.extname(fname);
+    return fs.readFile(fp, (err, data) => {
+      if (err) return res.writeHead(500), res.end();
+      res.writeHead(200, { 'Content-Type': gauntletAssetMimeByExt(ext) });
+      res.end(data);
+    });
+  }
+  if (url.indexOf(BASE_PATH) === 0) url = url.slice(BASE_PATH.length) || '/index.html';
+  const filePath = path.join(__dirname, 'public', url);
+  const ext = path.extname(filePath);
+  const types = { '.html': 'text/html', '.js': 'application/javascript', '.css': 'text/css' };
+  fs.readFile(filePath, (err, data) => {
+    if (err) return res.writeHead(404), res.end('Not Found');
+    res.writeHead(200, {
+      'Content-Type': types[ext] || 'application/octet-stream',
+      'Cache-Control': 'no-store, no-cache, must-revalidate',
+      'Pragma': 'no-cache',
+      'Expires': '0'
+    });
+    res.end(data);
+  });
+});
+
+const io = new Server(server, { path: BASE_PATH + '/socket.io', cors: { origin: '*' } });
+const spaces = new Map();
+
+const GAUNTLET_MAX_PLAYERS = 6;
+/** ระยะอยู่กลางอากาศ (tick) — ปรับได้ที่ Admin / data/game-timing.json */
+/** สุ่มเป็นคอลัมน์เลเซอร์ (ทุกแถว) ต่อหนึ่งรอบเกิด */
+const GAUNTLET_LASER_SPAWN_CHANCE = 0.14;
+/** เฉพาะแถวที่มีผู้เล่น — แถวละโอกาสเกิด lane obstacle */
+const GAUNTLET_LANE_ROW_SPAWN_CHANCE = 0.34;
+/** Last Light / museum gauntlet — scoring, mission UI, how-to flow */
+const GAUNTLET_CROWN_HEIST_MAP_ID = 'mno9kb07';
+/** Mega Virus — balloon_boss ฉากภารกิจ (flow เดียวกับ crown) */
+const BALLOON_BOSS_MISSION_MAP_ID = 'mnq1eml7';
+/** Space Shooter ภารกิจ Violent Crime — lobby READY / START เดียวกับ Jumper */
+const SPACE_SHOOTER_MISSION_MAP_ID = 'mnpz6rkp';
+
+function isGauntletCrownHeistMapBySpace(space) {
+  return !!(space && space.mapId && String(space.mapId) === GAUNTLET_CROWN_HEIST_MAP_ID);
+}
+
+function isBalloonBossMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== BALLOON_BOSS_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'balloon_boss');
+}
+
+/** ภารกิจคำถาม quiz + แมป mng8a80o — lobby READY เดียวกับ Mega Virus */
+function isQuizQuestionMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== SUSPECT_INVESTIGATION_QUIZ_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'quiz');
+}
+
+function isStackTowerMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== STACK_TOWER_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'stack');
+}
+
+function isJumpSurviveMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== JUMP_SURVIVE_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'jump_survive');
+}
+
+function isSpaceShooterMissionShellSpace(space) {
+  if (!space || !space.mapId || String(space.mapId) !== SPACE_SHOOTER_MISSION_MAP_ID) return false;
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  return !!(md && md.gameType === 'space_shooter');
+}
+
+function isCrownLobbyShellSpace(space) {
+  return isGauntletCrownHeistMapBySpace(space) || isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space);
+}
+
+function newBalloonBossShellGauntletRunState() {
+  return {
+    obstacles: [],
+    nextObsId: 1,
+    spawnAcc: 0,
+    nextSpawnIn: 999,
+    crownRunHeld: true,
+    timerId: null,
+    endsAt: null,
+  };
+}
+
+function emitBalloonBossMissionShellGauntletSync(sid, space) {
+  if (!isBalloonBossMissionShellSpace(space)) return;
+  const gr = space.gauntletRun;
+  io.to(sid).emit('gauntlet-sync', {
+    gauntletCrownRunHeld: !!(gr && gr.crownRunHeld),
+  });
+}
+
+function rollGauntletCrownRewardCard(grade) {
+  const r = Math.random();
+  if (grade === 'A') {
+    if (r < 0.3) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+    if (r < 0.8) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+  if (grade === 'B') {
+    if (r < 0.2) return { kind: 'culprit', th: 'การ์ดชี้คนร้าย', en: 'Culprit card' };
+    if (r < 0.5) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+    return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+  }
+  if (r < 0.2) return { kind: 'rare', th: 'การ์ด Rare', en: 'Rare card' };
+  return { kind: 'common', th: 'การ์ดธรรมดา', en: 'Common card' };
+}
+
+function gauntletCrownRankBonus(rankOrdinal) {
+  if (rankOrdinal === 1) return 100;
+  if (rankOrdinal === 2) return 80;
+  if (rankOrdinal === 3) return 60;
+  return 0;
+}
+
+function buildGauntletCrownMissionPayload(space) {
+  const peersArr = [...space.peers.values()];
+  const rows = peersArr.map((p) => ({
+    id: p.id,
+    nickname: (p.nickname || '').trim() || 'ผู้เล่น',
+    characterId: p.characterId ?? null,
+    baseScore: p.gauntletEliminated ? 0 : Math.max(0, p.gauntletScore | 0),
+    eliminated: !!p.gauntletEliminated,
+  }));
+  rows.sort((a, b) => {
+    if (b.baseScore !== a.baseScore) return b.baseScore - a.baseScore;
+    return String(a.nickname).localeCompare(String(b.nickname), 'th');
+  });
+  let lastScore = null;
+  let rankOrdinal = 0;
+  const ranked = [];
+  for (let i = 0; i < rows.length; i++) {
+    const pos = i + 1;
+    if (lastScore !== rows[i].baseScore) {
+      rankOrdinal = pos;
+      lastScore = rows[i].baseScore;
+    }
+    const bonus = gauntletCrownRankBonus(rankOrdinal);
+    const finalScore = rows[i].baseScore + bonus;
+    const rankLabel = rankOrdinal === 1 ? '1st' : rankOrdinal === 2 ? '2nd' : rankOrdinal === 3 ? '3rd' : String(rankOrdinal);
+    ranked.push({
+      id: rows[i].id,
+      nickname: rows[i].nickname,
+      characterId: rows[i].characterId,
+      baseScore: rows[i].baseScore,
+      eliminated: rows[i].eliminated,
+      rank: rankOrdinal,
+      rankLabel,
+      rankBonus: bonus,
+      finalScore,
+    });
+  }
+  const totalSum = ranked.reduce((s, r) => s + r.finalScore, 0);
+  const n = ranked.length || 1;
+  const averageScore = Math.floor(totalSum / n);
+  const grade = averageScore >= 80 ? 'A' : averageScore >= 60 ? 'B' : 'C';
+  const rewardCard = rollGauntletCrownRewardCard(grade);
+  return {
+    ranked,
+    totalSum,
+    averageScore,
+    grade,
+    rewardCard,
+    totalParts: ranked.map((r) => r.finalScore),
+  };
+}
+
+function gauntletSpawnYs(md, playerCount) {
+  const h = md.height || 15;
+  const lo = 1;
+  const hi = Math.max(lo, h - 2);
+  const n = Math.min(GAUNTLET_MAX_PLAYERS, Math.max(1, playerCount));
+  if (hi <= lo) return Array.from({ length: n }, () => lo);
+  const ys = [];
+  for (let i = 0; i < n; i++) {
+    ys.push(Math.round(lo + (i * (hi - lo)) / Math.max(1, n - 1)));
+  }
+  return ys;
+}
+
+/** ช่อง spawnArea=1 ที่เดินได้ เรียงจากบนลงล่าง — ใช้เมื่อไม่มี gauntletPlayerSpawns */
+function collectGauntletSpawnSlotsFromSpawnArea(md) {
+  const grid = md.spawnArea;
+  if (!grid || !Array.isArray(grid)) return [];
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const slots = [];
+  for (let y = 0; y < h; y++) {
+    const row = grid[y];
+    if (!row) continue;
+    for (let x = 0; x < w; x++) {
+      if (Number(row[x]) === 1 && isMapTileWalkableForSpawn(md, x, y)) slots.push({ x, y });
+    }
+  }
+  slots.sort((a, b) => a.y - b.y || a.x - b.x);
+  return slots;
+}
+
+/** ลำดับผู้เล่น 1..6: ใช้ gauntletPlayerSpawns ตามลำดับใน JSON ก่อน ถ้าไม่มี/ว่างค่อยใช้ spawnArea */
+function collectGauntletSpawnSlotsFromMap(md) {
+  const explicit = md.gauntletPlayerSpawns;
+  if (Array.isArray(explicit) && explicit.length > 0) {
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const slots = [];
+    for (const raw of explicit) {
+      if (slots.length >= GAUNTLET_MAX_PLAYERS) break;
+      const x = Math.floor(Number(raw && raw.x));
+      const y = Math.floor(Number(raw && raw.y));
+      if (!Number.isFinite(x) || !Number.isFinite(y) || x < 0 || x >= w || y < 0 || y >= h) continue;
+      if (!isMapTileWalkableForSpawn(md, x, y)) continue;
+      slots.push({ x, y });
+    }
+    if (slots.length > 0) return slots;
+  }
+  return collectGauntletSpawnSlotsFromSpawnArea(md);
+}
+
+function gauntletResolveSpawnXForRow(md, spawnColX, y, slotXFallback) {
+  const w = md.width || 20;
+  if (isMapTileWalkableForSpawn(md, spawnColX, y)) return spawnColX;
+  if (slotXFallback != null && isMapTileWalkableForSpawn(md, slotXFallback, y)) return slotXFallback;
+  for (let d = 0; d < w; d++) {
+    if (spawnColX + d < w && isMapTileWalkableForSpawn(md, spawnColX + d, y)) return spawnColX + d;
+    if (spawnColX - d >= 0 && isMapTileWalkableForSpawn(md, spawnColX - d, y)) return spawnColX - d;
+  }
+  return Math.max(0, Math.min(w - 1, spawnColX));
+}
+
+/** แนว Y ตามลำดับจุดเกิด แต่ทุกคนใช้คอลัมน์ x เดียวกัน (ซ้ายสุดจากชุดจุดที่กำหนด) — กันยืนเฉียง */
+function gauntletSpawnPositions(md, playerCount) {
+  const n = Math.min(GAUNTLET_MAX_PLAYERS, Math.max(1, playerCount));
+  const slots = collectGauntletSpawnSlotsFromMap(md);
+  const fallbackYs = gauntletSpawnYs(md, n);
+  const spawnColX = slots.length ? Math.min(...slots.map((s) => s.x)) : 1;
+  const out = [];
+  for (let i = 0; i < n; i++) {
+    const y = i < slots.length
+      ? slots[i].y
+      : (fallbackYs[i] != null ? fallbackYs[i] : fallbackYs[fallbackYs.length - 1]);
+    const slotX = i < slots.length ? slots[i].x : null;
+    const x = gauntletResolveSpawnXForRow(md, spawnColX, y, slotX);
+    out.push({ x, y });
+  }
+  return out;
+}
+
+function stopGauntletTicker(space) {
+  if (space.gauntletRun && space.gauntletRun.timerId) {
+    clearInterval(space.gauntletRun.timerId);
+    space.gauntletRun.timerId = null;
+  }
+}
+
+/** ถ้าตั้งจำกัดเวลาใน Admin แต่ยังไม่มี endsAt (เช่น join ห้อง Gauntlet โดยตรง) — เริ่มนับตอนนี้ */
+function ensureGauntletEndsAtIfNeeded(space) {
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  if (gr.crownRunHeld) return;
+  const lim = getGauntletTimeLimitSec();
+  if (lim > 0 && gr.endsAt == null) {
+    gr.endsAt = Date.now() + lim * 1000;
+  }
+}
+
+function newGauntletRunState(space) {
+  const crown = !!(space && isGauntletCrownHeistMapBySpace(space));
+  return {
+    obstacles: [],
+    nextObsId: 1,
+    spawnAcc: 0,
+    nextSpawnIn: 3,
+    crownRunHeld: crown,
+  };
+}
+
+function emitGauntletSync(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  const h = md.height || 15;
+  const obsOut = gr.obstacles.map((o) => {
+    if (o.kind === 'laser') {
+      const y0 = o.y0 != null && Number.isFinite(Number(o.y0)) ? Math.floor(Number(o.y0)) : 0;
+      const y1 = o.y1 != null && Number.isFinite(Number(o.y1)) ? Math.floor(Number(o.y1)) : h - 1;
+      return { id: o.id, kind: 'laser', x: o.x, y: null, y0, y1 };
+    }
+    return { id: o.id, kind: o.kind, x: o.x, y: o.y };
+  });
+  const playersOut = [...space.peers.values()].map((p) => ({
+    id: p.id,
+    x: p.x,
+    y: p.y,
+    direction: p.direction || 'down',
+    characterId: p.characterId ?? null,
+    gauntletJumpTicks: p.gauntletJumpTicks || 0,
+    gauntletScore: p.gauntletScore || 0,
+    gauntletEliminated: !!p.gauntletEliminated,
+  }));
+  io.to(sid).emit('gauntlet-sync', {
+    obstacles: obsOut,
+    players: playersOut,
+    gauntletTickMs: getGauntletTickMs(),
+    gauntletJumpTicks: getGauntletJumpTicks(),
+    gauntletTimeLimitSec: getGauntletTimeLimitSec(),
+    gauntletEndsAt: gr.endsAt != null ? gr.endsAt : null,
+    gauntletCrownRunHeld: !!gr.crownRunHeld,
+    ...getGauntletVisualsForClient(),
+  });
+}
+
+function startGauntletTicker(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  if (space.gauntletRun && space.gauntletRun.timerId) return;
+  if (!space.gauntletRun) {
+    space.gauntletRun = newGauntletRunState(space);
+  }
+  ensureGauntletEndsAtIfNeeded(space);
+  space.gauntletRun.timerId = setInterval(() => {
+    runGauntletTick(sid, space);
+  }, getGauntletTickMs());
+}
+
+function initGauntletPeersAll(space, md) {
+  const list = [...space.peers.values()];
+  const pos = gauntletSpawnPositions(md, list.length);
+  const crown = isGauntletCrownHeistMapBySpace(space);
+  list.forEach((p, i) => {
+    const pt = pos[i] || pos[pos.length - 1];
+    p.x = pt.x;
+    p.y = pt.y;
+    p.gauntletJumpTicks = 0;
+    p.gauntletScore = crown ? 100 : 0;
+    p.gauntletJumpPending = false;
+    p.gauntletEliminated = false;
+  });
+  space.gauntletRun = newGauntletRunState(space);
+  if (crown) {
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    space.peers.forEach((_p, id) => {
+      space.gauntletCrownLobbyReady[id] = false;
+    });
+  }
+  space.gauntletPreviewRowsBySocket = new Map();
+}
+
+function findFallbackLobbyMapForGauntletEnd() {
+  for (const [id, m] of maps) {
+    if (m && m.gameType === 'lobby') return { id, m };
+  }
+  return null;
+}
+
+/** หมดเวลา Gauntlet — หยุด tick, คืนแผนที่ lobby, แจ้งไคลเอนต์ */
+function endGauntletGame(sid, space, reason) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') return;
+  if (space.detectiveMinigameActive) {
+    const msg = reason === 'time' ? 'หมดเวลา — จบมินิเกม' : 'จบมินิเกม';
+    returnDetectiveSpaceToLobbyB(sid, space, msg, { allPlayers: true });
+    return;
+  }
+  stopGauntletTicker(space);
+  const wasCrown = isGauntletCrownHeistMapBySpace(space);
+  const crownMission = wasCrown ? buildGauntletCrownMissionPayload(space) : null;
+  const rankings = crownMission
+    ? crownMission.ranked.map((r) => ({
+      id: r.id,
+      nickname: r.nickname,
+      score: r.finalScore,
+    }))
+    : [...space.peers.values()].map((p) => ({
+      id: p.id,
+      nickname: (p.nickname || '').trim() || 'ผู้เล่น',
+      score: Math.max(0, p.gauntletScore | 0),
+    })).sort((a, b) => b.score - a.score);
+
+  let retId = space.gauntletReturnMapId;
+  let retMap = retId && maps.has(retId) ? maps.get(retId) : null;
+  if (!retMap || retMap.gameType === 'gauntlet') {
+    const fb = findFallbackLobbyMapForGauntletEnd();
+    if (fb) {
+      retId = fb.id;
+      retMap = fb.m;
+    }
+  }
+  if (retMap && retMap.gameType !== 'gauntlet') {
+    space.mapId = retId;
+    space.mapData = retMap;
+    let gi = 0;
+    space.peers.forEach((p) => {
+      const sp = pickSpawnForJoin(retMap, gi++);
+      p.x = sp.x;
+      p.y = sp.y;
+      p.gauntletJumpTicks = 0;
+      p.gauntletScore = 0;
+      p.gauntletJumpPending = false;
+      p.gauntletEliminated = false;
+    });
+  } else {
+    console.warn('endGauntletGame: no lobby map to return to', sid);
+  }
+  space.gauntletReturnMapId = null;
+  if (space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket.clear();
+  space.gauntletRun = null;
+  const msg = reason === 'time' ? 'หมดเวลา — เกมพรมแดงจบแล้ว' : 'เกมพรมแดงจบแล้ว';
+  io.to(sid).emit('gauntlet-ended', {
+    reason: reason || 'time',
+    message: msg,
+    rankings,
+    crownMission: crownMission || undefined,
+  });
+}
+
+/** แถว y บน–ล่างของเลเซอร์จากแมป (null ทั้งคู่ = เต็มความสูง) */
+function gauntletLaserVerticalSpanFromMap(md) {
+  const hRaw = md && md.height != null ? Number(md.height) : 15;
+  const h = Math.max(1, Math.floor(Number.isFinite(hRaw) ? hRaw : 15));
+  const rs = md && md.gauntletLaserRowStart;
+  const re = md && md.gauntletLaserRowEnd;
+  if (rs == null || re == null || !Number.isFinite(Number(rs)) || !Number.isFinite(Number(re))) {
+    return { y0: 0, y1: h - 1 };
+  }
+  let y0 = Math.floor(Number(rs));
+  let y1 = Math.floor(Number(re));
+  y0 = Math.max(0, Math.min(h - 1, y0));
+  y1 = Math.max(0, Math.min(h - 1, y1));
+  if (y1 < y0) {
+    const t = y0;
+    y0 = y1;
+    y1 = t;
+  }
+  return { y0, y1 };
+}
+
+/**
+ * แถว grid ของ lane obstacle: แถวเท้า (ขอบล่าง footprint; แถวบนของตัว = player y)
+ * — สูงกว่าแบบ top+ch หนึ่งช่อง (ไม่ให้ลงเกินพรม)
+ */
+function gauntletLaneGridRowFromPlayerTop(md, topY, h) {
+  const { ch } = getCharacterFootprintWHForMove(md);
+  const top = Math.floor(Number(topY));
+  if (!Number.isFinite(top) || top < 0 || top >= h) return null;
+  const lr = top + ch - 1;
+  if (lr < 0 || lr >= h) return null;
+  return lr;
+}
+
+function runGauntletTick(sid, space) {
+  const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+  if (!md || md.gameType !== 'gauntlet') {
+    stopGauntletTicker(space);
+    return;
+  }
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const gr = space.gauntletRun;
+  if (!gr) return;
+  ensureGauntletEndsAtIfNeeded(space);
+  if (gr.endsAt != null && Date.now() >= gr.endsAt) {
+    endGauntletGame(sid, space, 'time');
+    return;
+  }
+
+  if (gr.crownRunHeld) {
+    space.peers.forEach((p) => {
+      p.gauntletJumpPending = false;
+    });
+    emitGauntletSync(sid, space);
+    return;
+  }
+
+  /* ใช้ pending ให้ jump กับ collision อยู่รอบ tick เดียวกัน (กัน race ระหว่าง setInterval กับ socket) */
+  space.peers.forEach((p) => {
+    if (p.gauntletJumpPending) {
+      if ((p.gauntletJumpTicks || 0) === 0) {
+        p.gauntletJumpTicks = getGauntletJumpTicks();
+      }
+      p.gauntletJumpPending = false;
+    }
+  });
+
+  for (let i = 0; i < gr.obstacles.length; i++) gr.obstacles[i].x -= 1;
+  gr.obstacles = gr.obstacles.filter((o) => o.x >= 0);
+
+  const laneSpawnRows = new Set();
+  space.peers.forEach((peer) => {
+    const lr = gauntletLaneGridRowFromPlayerTop(md, peer.y, h);
+    if (lr != null) laneSpawnRows.add(lr);
+  });
+  /* แถวบนที่ client แจ้ง (บอท preview) — แปลงเป็นแถว lane เดียวกับ peer */
+  const previewRows = space.gauntletPreviewRowsBySocket;
+  if (previewRows && previewRows.size) {
+    previewRows.forEach((set) => {
+      set.forEach((y) => {
+        const lr = gauntletLaneGridRowFromPlayerTop(md, y, h);
+        if (lr != null) laneSpawnRows.add(lr);
+      });
+    });
+  }
+  /* lane obstacle เฉพาะแถวที่ยังมีผู้เล่น/บอทในเลนนั้น — ลบชิ้นที่ไม่มีใครแล้ว */
+  gr.obstacles = gr.obstacles.filter((o) => o.kind !== 'lane' || laneSpawnRows.has(o.y));
+
+  gr.spawnAcc = (gr.spawnAcc || 0) + 1;
+  if (gr.spawnAcc >= (gr.nextSpawnIn || 3)) {
+    gr.spawnAcc = 0;
+    gr.nextSpawnIn = 2 + Math.floor(Math.random() * 6);
+    /* ประเภท 2: เลเซอร์ — ทุกแถว */
+    if (Math.random() < GAUNTLET_LASER_SPAWN_CHANCE) {
+      const span = gauntletLaserVerticalSpanFromMap(md);
+      gr.obstacles.push({ id: ++gr.nextObsId, kind: 'laser', x: w - 1, y0: span.y0, y1: span.y1 });
+    }
+    /* ประเภท 1: แยกเลน — แถวเท้า (ไม่ใช่แถวหัว; ไม่ใช่แถวใต้เท้าอีกช่อง) */
+    laneSpawnRows.forEach((ly) => {
+      if (Math.random() < GAUNTLET_LANE_ROW_SPAWN_CHANCE) {
+        gr.obstacles.push({ id: ++gr.nextObsId, kind: 'lane', x: w - 1, y: ly });
+      }
+    });
+  }
+
+  /* กระโดดข้ามสำเร็จ → เลื่อนผู้เล่นไปขวา แต่ไม่ลบ obstacle (ยังไหลต่อให้คนอื่น/รอบถัดไป) */
+  const crownHeist = isGauntletCrownHeistMapBySpace(space);
+  const { ch: gauntletCh } = getCharacterFootprintWHForMove(md);
+  space.peers.forEach((p) => {
+    if (crownHeist && p.gauntletEliminated) {
+      return;
+    }
+    let px = Math.floor(Number(p.x)) || 0;
+    let py = Math.floor(Number(p.y)) || 0;
+    px = Math.max(0, Math.min(w - 1, px));
+    py = Math.max(0, Math.min(h - 1, py));
+    const air = (p.gauntletJumpTicks || 0) > 0;
+    let advanceX = false;
+    let hitBack = false;
+    for (const o of gr.obstacles) {
+      if (o.kind === 'lane' && o.x === px && o.y >= py && o.y < py + gauntletCh) {
+        if (air) advanceX = true;
+        else hitBack = true;
+      }
+      if (o.kind === 'laser' && o.x === px) {
+        const y0 = o.y0 != null && Number.isFinite(Number(o.y0)) ? Math.max(0, Math.min(h - 1, Math.floor(Number(o.y0)))) : 0;
+        const y1 = o.y1 != null && Number.isFinite(Number(o.y1)) ? Math.max(0, Math.min(h - 1, Math.floor(Number(o.y1)))) : h - 1;
+        const lo = Math.min(y0, y1);
+        const hi = Math.max(y0, y1);
+        if (py < lo || py > hi) {
+          /* เลเซอร์ไม่ครอบแถวนี้ */
+        } else if (air) {
+          advanceX = true;
+        } else {
+          hitBack = true;
+        }
+      }
+    }
+    if (advanceX) {
+      px = Math.min(w - 2, px + 1);
+      p.gauntletJumpTicks = 0;
+      if (!crownHeist) {
+        p.gauntletScore = (p.gauntletScore || 0) + 1;
+      }
+    } else if (hitBack) {
+      if (crownHeist) {
+        if (px <= 0) {
+          p.gauntletEliminated = true;
+          p.gauntletScore = 0;
+        } else {
+          p.gauntletScore = Math.max(0, (p.gauntletScore || 0) - 10);
+          px = Math.max(0, px - 1);
+        }
+      } else {
+        px = Math.max(0, px - 1);
+      }
+    }
+    if ((p.gauntletJumpTicks || 0) > 0) p.gauntletJumpTicks--;
+    p.x = px;
+    p.y = py;
+  });
+
+  emitGauntletSync(sid, space);
+}
+
+function rescheduleAllGauntletTickers() {
+  for (const [sid, space] of spaces) {
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') continue;
+    if (space.gauntletRun && space.gauntletRun.timerId) {
+      clearInterval(space.gauntletRun.timerId);
+      space.gauntletRun.timerId = null;
+    }
+    if (space.peers.size === 0) continue;
+    if (!space.gauntletRun) {
+      space.gauntletRun = newGauntletRunState(space);
+    }
+    ensureGauntletEndsAtIfNeeded(space);
+    space.gauntletRun.timerId = setInterval(() => {
+      runGauntletTick(sid, space);
+    }, getGauntletTickMs());
+  }
+}
+
+function getLobbyLayoutMapForSpace(space) {
+  return (space.mapId && maps.get(space.mapId)) || space.mapData;
+}
+
+/** ห้องกำลังใช้เลย์เอาต์ LobbyB (mn8nx46h หรือแมป lobby ชื่อ LobbyB) — กัน mapId บน space ค้างค่าอื่นแต่ mapData เป็น LobbyB */
+function serverMapIsPostCaseLobbyB(space) {
+  if (!space) return false;
+  if (space.mapId === POST_CASE_LOBBY_SPACE_ID) return true;
+  const md = getLobbyLayoutMapForSpace(space);
+  if (!md || md.gameType !== 'lobby') return false;
+  const nm = String(md.name || '').trim().toLowerCase();
+  return nm === 'lobbyb';
+}
+
+/** ให้ชื่อใน whitelist ตรงกับตอน join หลังเริ่มคดี (กันช่องว่าง/ยูนิโค้ดต่างรูปแบบ) */
+function normalizeLobbyNickname(nickname) {
+  const raw = String(nickname || '').trim();
+  if (!raw) return 'ผู้เล่น';
+  try {
+    return raw.normalize('NFKC').toLowerCase();
+  } catch (e) {
+    return raw.toLowerCase();
+  }
+}
+
+/** ห้องนี้เป็น LobbyB (โถงหลังคดี) แล้ว — ไม่ต้องย้ายซ้ำ */
+function lobbySpaceAlreadyLobbyB(space, md) {
+  if (!md || md.gameType !== 'lobby') return false;
+  if (space.mapId === POST_CASE_LOBBY_SPACE_ID) return true;
+  if (String(md.name || '').trim() === 'LobbyB') return true;
+  return false;
+}
+
+function lobbyMapHasStartGameArea(md) {
+  if (!md) return false;
+  const namedLobbyA = String(md.name || '').trim().toLowerCase() === 'lobbya';
+  if (md.gameType !== 'lobby' && !namedLobbyA) return false;
+  const area = md.startGameArea;
+  if (!area || !Array.isArray(area)) return false;
+  for (let y = 0; y < area.length; y++) {
+    const row = area[y];
+    if (!row) continue;
+    for (let x = 0; x < row.length; x++) if (row[x] === 1) return true;
+  }
+  return false;
+}
+
+/** ถ้าไม่ได้วาดพื้นที่เริ่มเกมในเอดิเตอร์ = ไม่บังคับ */
+function lobbyHostStandingInStartArea(space, hostId) {
+  const md = getLobbyLayoutMapForSpace(space);
+  if (!lobbyMapHasStartGameArea(md)) return true;
+  const p = space.peers.get(hostId);
+  if (!p || p.x == null || p.y == null) return false;
+  const tx = Math.floor(p.x);
+  const ty = Math.floor(p.y);
+  const row = md.startGameArea[ty];
+  return !!(row && row[tx] === 1);
+}
+
+function isMapTileWalkableForSpawn(md, x, y) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  if (x < 0 || x >= w || y < 0 || y >= h) return false;
+  const row = md.objects && md.objects[y];
+  if (row && row[x] === 1) return false;
+  return true;
+}
+
+function mapCharacterFootprintWH(md) {
+  const cw = Math.max(1, Math.min(4, Math.floor(Number(md && md.characterCellsW) || Number(md && md.characterCells) || 1)));
+  const ch = Math.max(1, Math.min(4, Math.floor(Number(md && md.characterCellsH) || Number(md && md.characterCells) || 1)));
+  return { cw, ch };
+}
+
+/** จุดเกิด = มุมซ้ายบนของ footprint — ต้องเดินได้ทั้งกล่อง (ตรง editor / room-lobby) */
+function isMapSpawnAnchorWalkable(md, x, y) {
+  if (!isMapTileWalkableForSpawn(md, x, y)) return false;
+  const { cw, ch } = mapCharacterFootprintWH(md);
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const maxX = Math.min(w, x + cw);
+  const maxY = Math.min(h, y + ch);
+  for (let ty = y; ty < maxY; ty++) {
+    for (let tx = x; tx < maxX; tx++) {
+      if (!isMapTileWalkableForSpawn(md, tx, ty)) return false;
+    }
+  }
+  return true;
+}
+
+/** แปลง lobbyPlayerSpawns จากแมปเป็นอาร์เรย์ยาว 6 ช่อง (null หรือ {x,y}) */
+function parseLobbyPlayerSpawnsFromMap(md) {
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const out = [null, null, null, null, null, null];
+  const raw = md && md.lobbyPlayerSpawns;
+  if (!Array.isArray(raw)) return out;
+  for (let i = 0; i < 6 && i < raw.length; i++) {
+    const cell = raw[i];
+    if (!cell || typeof cell !== 'object') continue;
+    const x = Math.floor(Number(cell.x));
+    const y = Math.floor(Number(cell.y));
+    if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
+    if (x < 0 || x >= w || y < 0 || y >= h) continue;
+    out[i] = { x, y };
+  }
+  return out;
+}
+
+/** jump_survive: ช่อง P บนกริด (shooterSpawnSlots) เติม slots6 เมื่อ lobbyPlayerSpawns ว่าง */
+function augmentLobbySlotsFromShooterPaintJumpSurvive(md, slots6) {
+  if (!md || md.gameType !== 'jump_survive' || !Array.isArray(slots6)) return;
+  const g = md.shooterSpawnSlots;
+  if (!g) return;
+  const w = md.width || 20, h = md.height || 15;
+  for (let slot = 1; slot <= 6; slot++) {
+    const idx = slot - 1;
+    if (slots6[idx]) continue;
+    let found = false;
+    for (let yy = 0; yy < h && !found; yy++) {
+      const row = g[yy];
+      if (!row) continue;
+      for (let xx = 0; xx < w; xx++) {
+        if (row[xx] === slot) {
+          slots6[idx] = { x: xx, y: yy };
+          found = true;
+          break;
+        }
+      }
+    }
+  }
+}
+
+/**
+ * จุดเกิดตอน join — random = สุ่มใน spawnArea / fixed = ปุ่มตั้งจุดเกิด / slots6 = P ตามลำดับเข้า (0=คนแรก)
+ * โหมดพรมแดงยังถูกทับด้วย gauntletSpawnPositions หลัง join ตามเดิม
+ */
+function pickSpawnForJoin(md, joinOrderIndex) {
+  if (!md) return { x: 1, y: 1 };
+  const mode = md.lobbySpawnMode;
+  const ord = joinOrderIndex | 0;
+  if (mode === 'slots6' && ord >= 6) return pickRandomSpawnFromMap(md);
+  const j = Math.min(Math.max(0, ord), 5);
+  if (mode === 'fixed' && md.spawn) {
+    const fx = Number.isFinite(Number(md.spawn.x)) ? Math.floor(Number(md.spawn.x)) : 1;
+    const fy = Number.isFinite(Number(md.spawn.y)) ? Math.floor(Number(md.spawn.y)) : 1;
+    const w = md.width || 20;
+    const h = md.height || 15;
+    const x = Math.max(0, Math.min(w - 1, fx));
+    const y = Math.max(0, Math.min(h - 1, fy));
+    if (isMapSpawnAnchorWalkable(md, x, y)) return { x, y };
+    return pickRandomSpawnFromMap(md);
+  }
+  if (mode === 'slots6') {
+    const slots = parseLobbyPlayerSpawnsFromMap(md);
+    augmentLobbySlotsFromShooterPaintJumpSurvive(md, slots);
+    const pick = slots[j];
+    if (pick && isMapSpawnAnchorWalkable(md, pick.x, pick.y)) return { x: pick.x, y: pick.y };
+    return pickRandomSpawnFromMap(md);
+  }
+  return pickRandomSpawnFromMap(md);
+}
+
+/** สุ่มจุดเกิดในช่อง spawnArea=1 ที่เดินได้ — ไม่มีช่องว่าง = ใช้ spawn ค่าเดิมจากเอดิเตอร์ */
+function pickRandomSpawnFromMap(md) {
+  const fallback = md.spawn || { x: 1, y: 1 };
+  const fx = Number.isFinite(Number(fallback.x)) ? Number(fallback.x) : 1;
+  const fy = Number.isFinite(Number(fallback.y)) ? Number(fallback.y) : 1;
+  const grid = md.spawnArea;
+  if (!grid || !Array.isArray(grid)) return { x: fx, y: fy };
+  const w = md.width || 20;
+  const h = md.height || 15;
+  const pool = [];
+  for (let y = 0; y < h; y++) {
+    const row = grid[y];
+    if (!row) continue;
+    for (let x = 0; x < w; x++) {
+      if (Number(row[x]) === 1 && isMapTileWalkableForSpawn(md, x, y)) pool.push({ x, y });
+    }
+  }
+  if (!pool.length) return { x: fx, y: fy };
+  const idx = typeof crypto.randomInt === 'function'
+    ? crypto.randomInt(0, pool.length)
+    : Math.floor(Math.random() * pool.length);
+  const pick = pool[idx];
+  return { x: pick.x, y: pick.y };
+}
+
+/** ตอบผิดในเกมคำถาม — กลับจุดเกิดตามลำดับเข้า (เดียวกับ pickSpawnForJoin) แล้วดีดออกนอกโซนถ้าทับโซนตอบ */
+function quizWrongAnswerRespawnPosition(md, joinOrderIndex) {
+  const ord = joinOrderIndex | 0;
+  const sp = pickSpawnForJoin(md, ord);
+  return findNearestOutsideQuizAnswerZones(md, Number(sp.x) + 0.5, Number(sp.y) + 0.5);
+}
+
+function initTroublesomeState(space) {
+  if (!space.troublesomeEligible) space.troublesomeEligible = new Set();
+  if (space.troublesomeOfferSent == null) space.troublesomeOfferSent = false;
+  if (space.suspectPickIndex == null) space.suspectPickIndex = 0;
+  if (space.suspectPhaseActive == null) space.suspectPhaseActive = false;
+}
+
+function attemptTroublesomeRoll(sid, force) {
+  const space = spaces.get(sid);
+  if (!space || space.troublesomeOfferSent) return;
+  const peerIds = [...space.peers.keys()];
+  if (peerIds.length === 0) return;
+  if (!force && space.troublesomeEligible.size < peerIds.length) return;
+  space.troublesomeOfferSent = true;
+  if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+  if (space.troublesomeMaxTimer) clearTimeout(space.troublesomeMaxTimer);
+  space.troublesomeDebTimer = null;
+  space.troublesomeMaxTimer = null;
+  let pool = peerIds.filter((id) => space.troublesomeEligible.has(id));
+  if (pool.length === 0) pool = peerIds;
+  const chosen = pool[Math.floor(Math.random() * pool.length)];
+  space.troublesomeTargetId = chosen;
+  space.troublesomeResponseReceived = false;
+  io.to(chosen).emit('troublesome-offer', { seconds: 15 });
+}
+
+function scheduleTroublesomeRoll(sid) {
+  const space = spaces.get(sid);
+  if (!space || space.troublesomeOfferSent) return;
+  if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+  space.troublesomeDebTimer = setTimeout(() => attemptTroublesomeRoll(sid, false), 450);
+  if (!space.troublesomeMaxTimer) {
+    space.troublesomeMaxTimer = setTimeout(() => attemptTroublesomeRoll(sid, true), 8000);
+  }
+}
+
+/**
+ * ห้องทดสอบเอดิเตอร์ / join ด้วย mapId: mapData บน space อาจยังเป็น lobby แต่ไคลเอนต์เล่น quiz_carry จากพารามิเตอร์
+ * — ให้ lobby Ready/START ทำงานถ้า mapId ชี้แมป quiz_carry หรือเป็นห้อง preview
+ */
+function spaceAllowsQuizCarryLobbyRelaxed(space) {
+  if (!space) return false;
+  if (space.mapId) {
+    const byId = maps.get(space.mapId);
+    if (byId && byId.gameType === 'quiz_carry') return true;
+  }
+  const md = space.mapData;
+  if (md && md.gameType === 'quiz_carry') return true;
+  return !!(space.previewEditorTest
+    || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+}
+
+/* ============================================================
+ * Quiz Battle (Kahoot/ZEP-style) — ห้องตอบคำถามพร้อมกัน รับได้สูงสุด 50 คน
+ * 10 ห้อง · auto-start (กด Start แล้วนับถอยหลังเริ่มเอง) · คำถามจาก battleQuizMcq
+ * แยกจากระบบ spaces (โลกเดิน) ใช้ io เดียวกัน · event ขึ้นต้น qb-*
+ * ============================================================ */
+const QB_ROOM_COUNT = 10;
+const QB_MAX_PLAYERS = 50;
+const QB_QUESTIONS_PER_ROUND = 10;     // จำนวนข้อต่อรอบ (สุ่มจาก pool battleQuizMcq)
+const QB_ANSWER_MS = 20000;            // เวลาตอบต่อข้อ
+const QB_REVEAL_MS = 4000;             // โชว์เฉลย + leaderboard ก่อนข้อต่อไป
+const QB_COUNTDOWN_MS = 5000;          // นับถอยหลังก่อนเริ่ม (auto-start)
+const QB_BASE_POINTS = 1000;           // คะแนนเต็มต่อข้อ (ตอบถูก + เร็วสุด)
+const QB_STREAK_BONUS = 100;           // โบนัสต่อ streak ตอบถูกติดกัน
+const QB_MIN_PLAYERS_TO_START = 1;     // ขั้นต่ำที่กด Start ได้
+const QB_END_LINGER_MS = 12000;        // โชว์อันดับจบเกมก่อนรีเซ็ตห้องกลับ lobby
+const QB_LOBBY_WATCH_ROOM = 'qb-lobby-watchers';
+
+const qbRooms = new Map(); // roomId -> room state
+
+function qbRoomId(n) { return 'qb-' + n; }
+
+function qbCreateRoom(n) {
+  return {
+    n,
+    id: qbRoomId(n),
+    status: 'lobby',          // lobby | countdown | question | reveal | ended
+    players: new Map(),        // socketId -> player
+    questions: [],
+    qIndex: -1,
+    qStartAt: 0,
+    qEndsAt: 0,
+    timers: [],
+  };
+}
+
+function qbGetRoom(n) {
+  const id = qbRoomId(n);
+  let r = qbRooms.get(id);
+  if (!r) { r = qbCreateRoom(n); qbRooms.set(id, r); }
+  return r;
+}
+
+function qbClearTimers(room) {
+  if (Array.isArray(room.timers)) room.timers.forEach((t) => clearTimeout(t));
+  room.timers = [];
+}
+
+function qbCountsSnapshot() {
+  const rooms = [];
+  for (let n = 1; n <= QB_ROOM_COUNT; n++) {
+    const r = qbRooms.get(qbRoomId(n));
+    rooms.push({ n, count: r ? r.players.size : 0, status: r ? r.status : 'lobby' });
+  }
+  return rooms;
+}
+
+function qbBroadcastCounts() {
+  const payload = { rooms: qbCountsSnapshot() };
+  io.to(QB_LOBBY_WATCH_ROOM).emit('qb-counts', payload);
+  for (let n = 1; n <= QB_ROOM_COUNT; n++) {
+    const r = qbRooms.get(qbRoomId(n));
+    if (r && r.players.size) io.to(r.id).emit('qb-counts', payload);
+  }
+}
+
+function qbPlayerList(room) {
+  return [...room.players.values()]
+    .map((p) => ({ id: p.id, name: p.name, score: p.score }))
+    .sort((a, b) => b.score - a.score);
+}
+
+function qbLeaderboard(room) {
+  return qbPlayerList(room).map((p, i) => ({ rank: i + 1, id: p.id, name: p.name, score: p.score }));
+}
+
+function qbEmitRoomState(room) {
+  io.to(room.id).emit('qb-room-state', {
+    n: room.n,
+    status: room.status,
+    max: QB_MAX_PLAYERS,
+    players: qbPlayerList(room),
+  });
+}
+
+function qbShuffle(arr) {
+  const a = arr.slice();
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+/** หยิบคำถามจาก battleQuizMcq (อ่านสด) → สุ่ม → ตัด N ข้อ · คืน [] ถ้าไม่มีคำถาม */
+function qbPickQuestions() {
+  let pool = [];
+  try { pool = loadQuizSettings().battleQuizMcq || []; } catch (e) { pool = []; }
+  pool = pool.filter((q) => q && q.text && Array.isArray(q.choices) && q.choices.length >= 2);
+  if (!pool.length) return [];
+  return qbShuffle(pool).slice(0, QB_QUESTIONS_PER_ROUND);
+}
+
+function qbResetRoom(room) {
+  qbClearTimers(room);
+  room.status = 'lobby';
+  room.questions = [];
+  room.qIndex = -1;
+  for (const p of room.players.values()) {
+    p.score = 0;
+    p.streak = 0;
+    p.answeredIndex = -1;
+  }
+  io.to(room.id).emit('qb-reset', {});
+  qbEmitRoomState(room);
+  qbBroadcastCounts();
+}
+
+function qbStartCountdown(room) {
+  if (room.status !== 'lobby') return { ok: false, error: 'เกมเริ่มไปแล้ว' };
+  if (room.players.size < QB_MIN_PLAYERS_TO_START) return { ok: false, error: 'ผู้เล่นไม่พอ' };
+  const questions = qbPickQuestions();
+  if (!questions.length) return { ok: false, error: 'ยังไม่มีคำถามในคลัง (เพิ่มที่หน้า Admin)' };
+  qbClearTimers(room);
+  room.questions = questions;
+  room.qIndex = -1;
+  room.status = 'countdown';
+  for (const p of room.players.values()) { p.score = 0; p.streak = 0; p.answeredIndex = -1; }
+  const endsAt = Date.now() + QB_COUNTDOWN_MS;
+  io.to(room.id).emit('qb-countdown', { endsAt, ms: QB_COUNTDOWN_MS, totalQuestions: questions.length });
+  qbBroadcastCounts();
+  room.timers.push(setTimeout(() => qbNextQuestion(room), QB_COUNTDOWN_MS));
+  return { ok: true };
+}
+
+function qbNextQuestion(room) {
+  qbClearTimers(room);
+  room.qIndex += 1;
+  if (room.qIndex >= room.questions.length) { qbEndGame(room); return; }
+  const q = room.questions[room.qIndex];
+  room.status = 'question';
+  room.qStartAt = Date.now();
+  room.qEndsAt = room.qStartAt + QB_ANSWER_MS;
+  for (const p of room.players.values()) { p.answeredIndex = -1; p.answeredAt = 0; p.lastDelta = 0; p.lastCorrect = false; }
+  io.to(room.id).emit('qb-question', {
+    index: room.qIndex,
+    total: room.questions.length,
+    text: q.text,
+    choices: q.choices,
+    endsAt: room.qEndsAt,
+    durationMs: QB_ANSWER_MS,
+  });
+  io.to(room.id).emit('qb-answered-count', { answered: 0, total: room.players.size });
+  room.timers.push(setTimeout(() => qbReveal(room), QB_ANSWER_MS));
+}
+
+function qbAllAnswered(room) {
+  for (const p of room.players.values()) { if (p.answeredIndex < 0) return false; }
+  return room.players.size > 0;
+}
+
+function qbReveal(room) {
+  qbClearTimers(room);
+  if (room.status !== 'question') return;
+  room.status = 'reveal';
+  const q = room.questions[room.qIndex];
+  const correctIndex = q.correctIndex;
+  const results = [...room.players.values()].map((p) => ({
+    id: p.id, name: p.name, correct: !!p.lastCorrect, delta: p.lastDelta || 0, score: p.score, choice: p.answeredIndex,
+  }));
+  const isLast = room.qIndex >= room.questions.length - 1;
+  io.to(room.id).emit('qb-reveal', {
+    index: room.qIndex,
+    correctIndex,
+    results,
+    leaderboard: qbLeaderboard(room),
+    isLast,
+    nextInMs: QB_REVEAL_MS,
+  });
+  room.timers.push(setTimeout(() => qbNextQuestion(room), QB_REVEAL_MS));
+}
+
+function qbEndGame(room) {
+  qbClearTimers(room);
+  room.status = 'ended';
+  io.to(room.id).emit('qb-ended', { leaderboard: qbLeaderboard(room), lingerMs: QB_END_LINGER_MS });
+  qbBroadcastCounts();
+  room.timers.push(setTimeout(() => qbResetRoom(room), QB_END_LINGER_MS));
+}
+
+/** ให้คะแนนแบบ Kahoot: ตอบถูก = ฐาน × (0.5 + 0.5×เศษเวลาที่เหลือ) + โบนัส streak */
+function qbScoreAnswer(room, p, choiceIndex) {
+  const q = room.questions[room.qIndex];
+  const now = Date.now();
+  p.answeredIndex = choiceIndex;
+  p.answeredAt = now;
+  const correct = Number(choiceIndex) === Number(q.correctIndex);
+  p.lastCorrect = correct;
+  if (correct) {
+    const remain = Math.max(0, room.qEndsAt - now);
+    const frac = QB_ANSWER_MS > 0 ? remain / QB_ANSWER_MS : 0;
+    p.streak = (p.streak || 0) + 1;
+    const base = Math.round(QB_BASE_POINTS * (0.5 + 0.5 * frac));
+    const bonus = (p.streak - 1) * QB_STREAK_BONUS;
+    p.lastDelta = base + bonus;
+    p.score += p.lastDelta;
+  } else {
+    p.streak = 0;
+    p.lastDelta = 0;
+  }
+  return p.lastDelta;
+}
+
+function qbLeaveRoom(socket) {
+  const roomId = socket.data.qbRoom;
+  if (!roomId) return;
+  const room = qbRooms.get(roomId);
+  socket.data.qbRoom = null;
+  socket.leave(roomId);
+  if (!room) return;
+  if (room.players.delete(socket.id)) {
+    if (room.players.size === 0) {
+      qbClearTimers(room);
+      room.status = 'lobby';
+      room.questions = [];
+      room.qIndex = -1;
+    } else {
+      qbEmitRoomState(room);
+      if (room.status === 'question' && qbAllAnswered(room)) qbReveal(room);
+    }
+    qbBroadcastCounts();
+  }
+}
+
+io.on('connection', (socket) => {
+  /* ===== Quiz Battle (Kahoot-style 50 คน) ===== */
+  socket.on('qb-watch-counts', (cb) => {
+    socket.join(QB_LOBBY_WATCH_ROOM);
+    if (typeof cb === 'function') cb({ ok: true, rooms: qbCountsSnapshot() });
+  });
+
+  socket.on('qb-join', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const n = parseInt(data && data.room, 10);
+    if (!(n >= 1 && n <= QB_ROOM_COUNT)) return reply({ ok: false, error: 'ห้องไม่ถูกต้อง' });
+    const room = qbGetRoom(n);
+    if (socket.data.qbRoom && socket.data.qbRoom !== room.id) qbLeaveRoom(socket);
+    if (!room.players.has(socket.id) && room.players.size >= QB_MAX_PLAYERS) {
+      return reply({ ok: false, error: 'ห้องเต็ม (50 คน)' });
+    }
+    const name = String((data && data.name) || 'ผู้เล่น').trim().slice(0, 24) || 'ผู้เล่น';
+    const characterId = String((data && data.characterId) || '').trim().slice(0, 64);
+    let p = room.players.get(socket.id);
+    if (!p) {
+      p = { id: socket.id, name, characterId, score: 0, streak: 0, answeredIndex: -1, answeredAt: 0, lastDelta: 0, lastCorrect: false };
+      room.players.set(socket.id, p);
+    } else {
+      p.name = name; p.characterId = characterId;
+    }
+    socket.data.qbRoom = room.id;
+    socket.join(room.id);
+    socket.leave(QB_LOBBY_WATCH_ROOM);
+    qbEmitRoomState(room);
+    qbBroadcastCounts();
+    // ส่งสถานะปัจจุบันให้คนที่เพิ่งเข้า (เผื่อเกมกำลังเล่นอยู่)
+    const snapshot = { n: room.n, status: room.status, max: QB_MAX_PLAYERS };
+    if (room.status === 'question') {
+      const q = room.questions[room.qIndex];
+      snapshot.question = { index: room.qIndex, total: room.questions.length, text: q.text, choices: q.choices, endsAt: room.qEndsAt, durationMs: QB_ANSWER_MS };
+    } else if (room.status === 'countdown') {
+      snapshot.totalQuestions = room.questions.length;
+    }
+    reply({ ok: true, ...snapshot, players: qbPlayerList(room) });
+  });
+
+  socket.on('qb-leave', (cb) => {
+    qbLeaveRoom(socket);
+    if (typeof cb === 'function') cb({ ok: true });
+  });
+
+  socket.on('qb-start', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const roomId = socket.data.qbRoom;
+    const room = roomId ? qbRooms.get(roomId) : null;
+    if (!room || !room.players.has(socket.id)) return reply({ ok: false, error: 'ยังไม่ได้เข้าห้อง' });
+    reply(qbStartCountdown(room));
+  });
+
+  socket.on('qb-answer', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const roomId = socket.data.qbRoom;
+    const room = roomId ? qbRooms.get(roomId) : null;
+    if (!room || room.status !== 'question') return reply({ ok: false });
+    const p = room.players.get(socket.id);
+    if (!p || p.answeredIndex >= 0) return reply({ ok: false, already: true });
+    const q = room.questions[room.qIndex];
+    const ci = parseInt(data && data.choiceIndex, 10);
+    if (!(ci >= 0 && ci < q.choices.length)) return reply({ ok: false });
+    const delta = qbScoreAnswer(room, p, ci);
+    let answered = 0;
+    for (const pp of room.players.values()) if (pp.answeredIndex >= 0) answered++;
+    io.to(room.id).emit('qb-answered-count', { answered, total: room.players.size });
+    reply({ ok: true, accepted: true });
+    if (qbAllAnswered(room)) qbReveal(room);
+  });
+
+  socket.on('join-space', ({ spaceId, nickname, characterId, playMapId, desiredLobbyColorThemeIndex, desiredLobbySkinToneIndex }, cb) => {
+    const space = spaces.get(spaceId);
+    if (!space || !space.mapData) return cb && cb({ ok: false, error: 'ไม่พบห้อง' });
+    const maxPlayers = space.maxPlayers || 10;
+    const mdJoinPre = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (mdJoinPre && mdJoinPre.gameType === 'gauntlet' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'เกมพรมแดงรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (mdJoinPre && mdJoinPre.gameType === 'space_shooter' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'ยิงยานอวกาศรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (mdJoinPre && mdJoinPre.gameType === 'balloon_boss' && space.peers.size >= GAUNTLET_MAX_PLAYERS) {
+      return cb && cb({ ok: false, error: 'ลูกโป้งยิงบอสรับได้สูงสุด ' + GAUNTLET_MAX_PLAYERS + ' คน' });
+    }
+    if (space.peers.size >= maxPlayers) return cb && cb({ ok: false, error: 'ห้องเต็มแล้ว (' + space.peers.size + '/' + maxPlayers + ')' });
+    const joinNickNorm = normalizeLobbyNickname(nickname);
+    if (space.joinLocked) {
+      const wl = space.caseParticipantNicknames;
+      if (wl && wl.size > 0) {
+        if (!wl.has(joinNickNorm)) {
+          return cb && cb({ ok: false, error: 'ห้องนี้เริ่มคดีแล้ว ไม่รับผู้เล่นเพิ่ม' });
+        }
+      } else {
+        return cb && cb({ ok: false, error: 'ห้องนี้เริ่มคดีแล้ว ไม่รับผู้เล่นเพิ่ม' });
+      }
+    }
+    socket.join(spaceId);
+    socket.data.spaceId = spaceId;
+    if (!space.hostId) space.hostId = socket.id;
+    if (serverMapIsPostCaseLobbyB(space)) initTroublesomeState(space);
+    ensurePeerLobbyThemes(space);
+    const mdJoin = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const spawnJoinOrder = space.peers.size;
+    const spawnPt = pickSpawnForJoin(mdJoin, spawnJoinOrder);
+    const bbStartBalloons = Math.max(1, Math.min(12, Math.floor(Number(mdJoin.balloonBossBalloonsPerPlayer)) || 3));
+    /* ใช้สีที่ client เลือกไว้ใน Main-Lobby — คนจริงสำคัญกว่าบอท */
+    let chosenThemeIdx = parseInt(desiredLobbyColorThemeIndex, 10);
+    if (chosenThemeIdx >= 1 && chosenThemeIdx <= LOBBY_THEME_COUNT) {
+      /* ถ้ามี "ผู้เล่นจริงคนอื่น" ถือสีนี้แล้ว → fallback สุ่มใหม่ */
+      let takenByHuman = false;
+      space.peers.forEach((p) => {
+        const ti = parseInt(p.lobbyColorThemeIndex, 10);
+        if (ti === chosenThemeIdx) takenByHuman = true;
+      });
+      if (takenByHuman) {
+        chosenThemeIdx = pickFreeLobbyThemeIndex(space);
+      } else if (space.lobbyBotThemeBySlot && typeof space.lobbyBotThemeBySlot === 'object') {
+        /* ถ้าบอทใช้สีนี้ → ดันบอทไปสีอื่น (เคลียร์ slot.themeIndex; syncLobbyBotThemeSlots ใน joinCb จะหาสีใหม่ที่ไม่ชนกับ peer ใหม่) */
+        Object.keys(space.lobbyBotThemeBySlot).forEach((k) => {
+          const slot = space.lobbyBotThemeBySlot[k];
+          if (slot && parseInt(slot.themeIndex, 10) === chosenThemeIdx) slot.themeIndex = 0;
+        });
+      }
+    } else {
+      chosenThemeIdx = pickFreeLobbyThemeIndex(space);
+    }
+    let chosenSkinIdx = parseInt(desiredLobbySkinToneIndex, 10);
+    if (!(chosenSkinIdx >= 1 && chosenSkinIdx <= LOBBY_SKIN_COUNT)) {
+      chosenSkinIdx = pickLobbySkinIndexForSlot(spawnJoinOrder);
+    }
+    const peer = {
+      id: socket.id, x: +spawnPt.x, y: +spawnPt.y, direction: 'down', nickname: nickname || 'ผู้เล่น', ready: false, characterId: characterId || null, voiceMicOn: true,
+      spawnJoinOrder,
+      lobbyColorThemeIndex: chosenThemeIdx,
+      lobbySkinToneIndex: chosenSkinIdx,
+      gauntletJumpTicks: 0, gauntletScore: 0, gauntletJumpPending: false, gauntletEliminated: false, spaceShooterScore: 0,
+      balloonBossScore: 0, balloonBossBossDmg: 0, balloonBossBalloons: mdJoin.gameType === 'balloon_boss' ? bbStartBalloons : 5, balloonBossEliminated: false,
+    };
+    if (mdJoin.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(mdJoin)) {
+      const sn = snapPositionOntoQuizBattlePathServer(mdJoin, Number(peer.x) + 0.5, Number(peer.y) + 0.5);
+      peer.x = sn.x;
+      peer.y = sn.y;
+    }
+    space.peers.set(socket.id, peer);
+    /* กลับ LobbyB เฉพาะเมื่อไม่ได้เข้า play ฉากมินิเกมที่กำลังเล่น (เช่น refresh room-lobby) */
+    if (space.detectiveMinigameActive) {
+      const clientMap = playMapId != null ? String(playMapId).trim() : '';
+      const activeMap = space.mapId != null ? String(space.mapId).trim() : '';
+      if (!clientMap || !activeMap || clientMap !== activeMap) {
+        returnDetectiveSpaceToLobbyB(spaceId, space, 'กลับ LobbyB');
+      }
+    }
+    if (spaceAllowsQuizCarryLobbyRelaxed(space)) {
+      if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') space.quizCarryLobbyReady = {};
+      space.quizCarryLobbyReady[socket.id] = false;
+      io.to(spaceId).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+    }
+    if (mdJoin.gameType === 'gauntlet') {
+      const ord = [...space.peers.keys()].indexOf(socket.id);
+      const pos = gauntletSpawnPositions(mdJoin, space.peers.size);
+      const pt = pos[ord] != null ? pos[ord] : pos[pos.length - 1];
+      peer.x = pt.x;
+      peer.y = pt.y;
+      peer.gauntletJumpTicks = 0;
+      if (isGauntletCrownHeistMapBySpace(space)) {
+        peer.gauntletScore = 100;
+        peer.gauntletEliminated = false;
+        if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+        space.gauntletCrownLobbyReady[socket.id] = false;
+        io.to(spaceId).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+      }
+      startGauntletTicker(spaceId, space);
+    } else if (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space)) {
+      if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+      space.gauntletCrownLobbyReady[socket.id] = false;
+      if (!space.gauntletRun) space.gauntletRun = newBalloonBossShellGauntletRunState();
+      io.to(spaceId).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+    }
+    const peersList = [...space.peers.values()];
+    const mapDataOut = (space.mapId && maps.get(space.mapId)) || space.mapData || mdJoin;
+    const joinCb = {
+      ok: true,
+      mapData: mapDataOut,
+      mapId: space.mapId || null,
+      peers: peersList,
+      hostId: space.hostId,
+      spaceName: space.spaceName || spaceId,
+      isPrivate: !!space.isPrivate,
+      roomCode: space.isPrivate ? spaceId : null,
+      maxPlayers: space.maxPlayers || 10,
+      suspectPhaseActive: !!space.suspectPhaseActive && serverMapIsPostCaseLobbyB(space),
+      suspectPickIndex: typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0,
+      cardMinigames: space.suspectCardMinigames || [],
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+      botSlotCount: effectiveBotSlotCount(space),
+      lobbyBotThemes: syncLobbyBotThemeSlots(space),
+      joinLocked: !!space.joinLocked,
+    };
+    if (serverMapIsPostCaseLobbyB(space)) {
+      joinCb.detectiveLobbyLevel = space.detectiveLobbyLevel != null ? space.detectiveLobbyLevel : null;
+      joinCb.detectiveLobbyCaseId = space.detectiveLobbyCaseId != null ? space.detectiveLobbyCaseId : null;
+    }
+    if (mdJoin.gameType === 'quiz_carry' || spaceAllowsQuizCarryLobbyRelaxed(space)) {
+      try {
+        const qs = loadQuizSettings();
+        joinCb.quizCarrySettingsSnap = {
+          carryMapPanelTheme: qs.carryMapPanelTheme,
+          carryEmbedCountdownTheme: qs.carryEmbedCountdownTheme,
+          carryChoicePlaqueThemes: qs.carryChoicePlaqueThemes,
+          carryChoicePlaqueTheme: qs.carryChoicePlaqueTheme,
+          carryChoicePlaqueMapScale: qs.carryChoicePlaqueMapScale,
+          carryReadMs: qs.carryReadMs,
+          carryAnswerMs: qs.carryAnswerMs,
+          carrySessionLength: qs.carrySessionLength,
+          carryWalkSpeedMultForMapId: qs.carryWalkSpeedMultForMapId,
+          carryWalkSpeedMult: qs.carryWalkSpeedMult,
+        };
+      } catch (e) { /* ignore */ }
+    }
+    if (mdJoin.gameType === 'quiz') {
+      try {
+        const qsQuiz = loadQuizSettings();
+        joinCb.quizSettingsSnap = {
+          quizMapPanelTheme: qsQuiz.quizMapPanelTheme,
+        };
+      } catch (e) { /* ignore */ }
+    }
+    if (mdJoin.gameType === 'gauntlet' && space.gauntletRun) {
+      joinCb.gauntletEndsAt = space.gauntletRun.endsAt != null ? space.gauntletRun.endsAt : null;
+    }
+    if ((isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space)) && space.gauntletRun) {
+      joinCb.gauntletCrownRunHeld = !!space.gauntletRun.crownRunHeld;
+    }
+    /* ไอคอนคำถามพิเศษของรอบนี้ (ถ้ามีและยังไม่ถูกทริก) */
+    const sqIcon = specialQuizIconPayload(space);
+    if (sqIcon) joinCb.specialQuizIcon = sqIcon;
+    if (typeof cb === 'function') cb(joinCb);
+    emitLobbyTintSync(spaceId, space);
+    socket.to(spaceId).emit('user-joined', peer);
+    if (space.voiceInits) {
+      for (const [peerId, initData] of Object.entries(space.voiceInits)) {
+        if (space.peers.get(peerId)?.voiceMicOn) socket.emit('voice-init', { from: peerId, data: initData });
+      }
+    }
+  });
+
+  /** ผู้เล่นเดินชนไอคอนคำถามพิเศษ — ใครชนก่อนเป็นคนเปิดเซสชันให้ทั้งห้อง */
+  /** debug: บังคับ spawn ไอคอนทุกรอบในเซสชันนี้ (เปิดด้วย ?sqForce=1) */
+  socket.on('special-quiz-force', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    space.forceSpecialQuiz = !!(data && data.on);
+    console.log('[special-quiz] force flag =', space.forceSpecialQuiz, 'by', socket.id);
+  });
+
+  /** Test Mode (จาก localStorage ฝั่ง client) — เปิด shortcut ทดสอบ เช่น Ctrl+Q ตอบถูก */
+  socket.on('special-quiz-testmode', (data) => {
+    socket.data.testMode = !!(data && data.on);
+  });
+
+  socket.on('special-quiz-collide', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const sq = space.specialQuiz;
+    if (!sq || sq.triggered || sq.done) return reply({ ok: false });
+    const started = startSpecialQuizSession(sid, space);
+    reply({ ok: !!started });
+  });
+
+  /** ผู้เล่นส่งคำตอบของข้อปัจจุบัน */
+  socket.on('special-quiz-answer', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const sess = space.specialQuiz && space.specialQuiz.session;
+    if (!sess || sess.resolving) return reply({ ok: false });
+    const q = sess.questions[sess.qIndex];
+    if (!q) return reply({ ok: false });
+    /* Test Mode: Ctrl+Q เติมคำตอบที่ถูกให้ (เฉพาะ socket ที่เปิด test mode) */
+    let choice;
+    if (data && data.debugCorrect && socket.data.testMode) {
+      choice = q.correctIndex;
+    } else {
+      choice = Number(data && data.choiceIndex);
+    }
+    if (!Number.isInteger(choice) || choice < 0 || choice >= q.choices.length) {
+      return reply({ ok: false });
+    }
+    if (Number.isInteger(sess.answers[socket.id])) return reply({ ok: false, error: 'ตอบไปแล้ว' });
+    sess.answers[socket.id] = choice;
+    reply({ ok: true });
+    /* แจ้งทุกคนว่าคนนี้ตอบแล้ว (ยังไม่เปิดเผยว่าตอบอะไรจนกว่าจะเฉลย) */
+    io.to(sid).emit('special-quiz-answer-update', { id: socket.id, answered: true });
+    /* ตอบครบทุกคน (จริง+บอท) แล้วตัดสินทันที ไม่ต้องรอหมดเวลา */
+    maybeResolveSpecialQuizAllAnswered(sid, space);
+  });
+
+  /** ผู้เล่นกด «เล่นต่อ» หลังโชว์การ์ดพิเศษ — เล่นรอบ quiz ต่อ (คนแรกที่กดพอ) */
+  socket.on('special-quiz-continue', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    finishSpecialQuizContinue(sid, space);
+    reply({ ok: true });
+  });
+
+  /** เปลี่ยนสีเสื้อ/ผิวใน lobby — ห้ามเลือกสีที่คนอื่นใช้แล้ว */
+  socket.on('lobby-tint-update', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    const peer = space && space.peers.get(socket.id);
+    if (!space || !peer) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    let themeIndex = Math.floor(Number(data && data.themeIndex));
+    let skinIndex = Math.floor(Number(data && data.skinToneIndex));
+    if (!Number.isFinite(themeIndex) || themeIndex < 1 || themeIndex > LOBBY_THEME_COUNT) {
+      return reply({ ok: false, error: 'ธีมสีไม่ถูกต้อง' });
+    }
+    if (!Number.isFinite(skinIndex) || skinIndex < 1 || skinIndex > LOBBY_SKIN_COUNT) {
+      skinIndex = peer.lobbySkinToneIndex || 1;
+    }
+    const taken = getTakenLobbyThemeIndices(space, socket.id);
+    if (taken.has(themeIndex)) return reply({ ok: false, error: 'สีเสื้อนี้มีคนใช้แล้ว' });
+    peer.lobbyColorThemeIndex = themeIndex;
+    peer.lobbySkinToneIndex = skinIndex;
+    emitLobbyTintSync(sid, space);
+    reply({
+      ok: true,
+      lobbyColorThemeIndex: themeIndex,
+      lobbySkinToneIndex: skinIndex,
+      lobbyBotThemes: space.lobbyBotThemeBySlot ? syncLobbyBotThemeSlots(space) : [],
+    });
+  });
+
+  /** เปลี่ยนชื่อที่แสดงใน lobby / เกม (ซิงก์ทุก client ในห้อง) */
+  socket.on('update-display-name', ({ nickname }, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const p = space.peers.get(socket.id);
+    if (!p) return reply({ ok: false, error: 'ไม่พบผู้เล่น' });
+    let safe = String(nickname || '').trim();
+    if (!safe) return reply({ ok: false, error: 'ชื่อว่าง' });
+    try {
+      safe = safe.normalize('NFKC');
+    } catch (e) { /* ignore */ }
+    if (safe.length > 32) safe = safe.slice(0, 32);
+    const oldNorm = normalizeLobbyNickname(p.nickname);
+    const newNorm = normalizeLobbyNickname(safe);
+    p.nickname = safe;
+    if (space.caseParticipantNicknames && space.caseParticipantNicknames.size > 0) {
+      if (space.caseParticipantNicknames.has(oldNorm)) {
+        space.caseParticipantNicknames.delete(oldNorm);
+        space.caseParticipantNicknames.add(newNorm);
+      }
+    }
+    io.to(sid).emit('peer-display-name', { id: socket.id, nickname: safe });
+    reply({ ok: true, nickname: safe });
+  });
+
+  /** ห้องทดสอบจากเอดิเตอร์ (ชื่อ preview) — สลับโฮสต์ให้เครื่องนี้กดเริ่มเกมได้ */
+  socket.on('preview-claim-host', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const isPreviewEditorRoom = !!(space.previewEditorTest
+      || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+    if (!isPreviewEditorRoom) return reply({ ok: false, error: 'ใช้ได้เฉพาะห้องทดสอบจากเอดิเตอร์' });
+    space.hostId = socket.id;
+    io.to(sid).emit('host-changed', { hostId: socket.id });
+    return reply({ ok: true });
+  });
+
+  socket.on('troublesome-eligible', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space) || space.troublesomeOfferSent) return;
+    initTroublesomeState(space);
+    space.troublesomeEligible.add(socket.id);
+    scheduleTroublesomeRoll(sid);
+  });
+
+  socket.on('troublesome-response', (data) => {
+    const accept = !!(data && data.accept);
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space)) return;
+    if (space.troublesomeTargetId && socket.id !== space.troublesomeTargetId) return;
+    if (space.troublesomeResponseReceived) return;
+    space.troublesomeResponseReceived = true;
+    space.troublesomeAccept = accept;
+    let idx = Math.floor(Number(space.suspectPickIndex));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) idx = 0;
+    space.suspectPickIndex = idx;
+    if (!space.suspectCardMinigames || space.suspectCardMinigames.length < 3) {
+      assignDetectiveSuspectCardMinigames(space);
+    }
+    space.suspectPhaseActive = true;
+    const phaseBase = {
+      hostId: space.hostId,
+      selectedIndex: space.suspectPickIndex,
+      disruptorAccepted: accept,
+      cardMinigames: space.suspectCardMinigames || [],
+    };
+    space.peers.forEach((_p, pid) => {
+      const sock = io.sockets.sockets.get(pid);
+      if (!sock) return;
+      sock.emit('suspect-phase-open', {
+        ...phaseBase,
+        myPlayerEvidence: clonePlayerEvidence(space, pid),
+        suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+      });
+    });
+    socket.emit('troublesome-ack', { ok: true, accept });
+  });
+
+  socket.on('suspect-pick-select', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space) || !space.suspectPhaseActive) return;
+    if (space.hostId !== socket.id) return;
+    let idx = Math.floor(Number(data && data.index));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) return;
+    space.suspectPickIndex = idx;
+    io.to(sid).emit('suspect-pick-update', { selectedIndex: idx });
+  });
+
+  socket.on('suspect-pick-start', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (space && Array.isArray(space.suspectCardMinigames)) {
+      space.suspectCardMinigames = space.suspectCardMinigames.map(normalizeDetectiveCardEntry);
+    }
+    if (!space || !serverMapIsPostCaseLobbyB(space)) {
+      return reply({ ok: false, error: 'ไม่พร้อม — ต้องอยู่โถง LobbyB' });
+    }
+    if (!space.suspectPhaseActive) {
+      return reply({ ok: false, error: 'ไม่อยู่ในขั้นเลือกผู้ต้องสงสัย' });
+    }
+    if (space.hostId !== socket.id) {
+      return reply({ ok: false, error: 'เฉพาะ host กดเริ่มสืบสวนได้' });
+    }
+    if (!space.suspectCardMinigames || space.suspectCardMinigames.length < 3) {
+      assignDetectiveSuspectCardMinigames(space);
+    }
+    const selectedIndex = typeof space.suspectPickIndex === 'number' ? space.suspectPickIndex : 0;
+    const cardEntry = space.suspectCardMinigames[selectedIndex];
+    if (!cardEntry || !cardEntry.mapId) {
+      return reply({ ok: false, error: 'ยังไม่ได้สุ่มมินิเกมสำหรับการ์ดนี้' });
+    }
+    /* Card 3 Ban — ก่อนเริ่มมินิเกมรอบหน้า โหวตเลือกผู้เล่น 1 คนที่ห้ามเล่น */
+    const pend = space.pendingSpecialCard;
+    if (pend && Number(pend.cardId) === 3 && !pend.consumed && !space.pickVote) {
+      pend.consumed = true;
+      io.to(sid).emit('special-card-applied', { card: specialCardClientPayload(pend.card), context: 'ban' });
+      startPlayerPickVote(sid, space, 'ban', (targetId) => {
+        const sp = spaces.get(sid);
+        if (!sp) return;
+        sp.bannedPlayerId = targetId || null;
+        const res = beginDetectiveSuspectMinigame(sid, sp, cardEntry, selectedIndex);
+        if (!res || !res.ok) {
+          io.to(sid).emit('quiz-ended', { message: (res && res.error) || 'เริ่มมินิเกมไม่สำเร็จ', returnToLobbyB: true });
+        }
+      });
+      return reply({ ok: true, banVote: true });
+    }
+    const started = beginDetectiveSuspectMinigame(sid, space, cardEntry, selectedIndex);
+    reply(started);
+  });
+
+  socket.on('detective-minigame-finished', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) {
+      return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    }
+    if (!space.detectiveMinigameActive) {
+      if (serverMapIsPostCaseLobbyB(space)) {
+        const grant = grantDetectiveEvidenceForCurrentRun(sid, space, [socket.id]);
+        return reply({
+          ok: true,
+          alreadyOnLobbyB: true,
+          suspectIndex: grant.suspectIdx,
+          awardedCard: grant.awarded && grant.awarded[socket.id] != null ? grant.awarded[socket.id] : null,
+          awardedCards: (grant.awardedList && grant.awardedList[socket.id]) || [],
+          grade: grant.grade || null,
+          freeEvidenceCount: grant.freeEvidenceCount || 0,
+          myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+          suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+        });
+      }
+      return reply({ ok: false, error: 'ไม่ได้อยู่ในมินิเกมสืบสวน' });
+    }
+    // เล่นมินิเกม 1 ครั้ง = ได้การ์ด 1 ใบ (ไม่ขึ้นเกรด/คะแนน)
+    returnDetectiveSpaceToLobbyB(sid, space, 'จบมินิเกม — กลับ LobbyB', { allPlayers: true });
+    const g = space.lastEvidenceGrant || {};
+    reply({
+      ok: true,
+      suspectIndex: typeof g.suspectIdx === 'number' ? g.suspectIdx : -1,
+      awardedCard: (g.awarded && g.awarded[socket.id] != null) ? g.awarded[socket.id] : null,
+      awardedCards: (g.awardedList && g.awardedList[socket.id]) || [],
+      grade: g.grade || null,
+      freeEvidenceCount: g.freeEvidenceCount || 0,
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+    });
+  });
+
+  /**
+   * DEBUG/TEST hotkey — เก็บหลักฐาน 1 ใบให้ผู้ต้องสงสัย (suspectIndex 0–2) ทันที
+   * (ใช้สำหรับเทสต์ Ctrl+1/2/3 — เทียบเท่าเล่นมินิเกมจบ 1 ครั้ง)
+   */
+  socket.on('detective-debug-award-evidence', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!serverMapIsPostCaseLobbyB(space)) return reply({ ok: false, error: 'ต้องอยู่โถง LobbyB' });
+    const idx = Math.floor(Number(data && data.suspectIndex));
+    if (!(idx >= 0 && idx <= 2)) return reply({ ok: false, error: 'suspectIndex ต้องเป็น 0–2' });
+    const card = awardRandomEvidenceCardToPlayer(space, socket.id, idx, 'C');
+    if (card == null) return reply({ ok: false, error: 'ไม่มีรูปการ์ดในพูลของ suspect นี้' });
+    emitLobbyEvidenceSync(sid, space);
+    reply({
+      ok: true,
+      suspectIndex: idx,
+      awardedCard: card,
+      myPlayerEvidence: clonePlayerEvidence(space, socket.id),
+      suspectProgress: playerSuspectProgressFromEvidence(space, socket.id),
+    });
+  });
+
+  // Host เปิดขั้นพิจารณาคดี (ต้องสืบครบ 3 ผู้ต้องสงสัย)
+  socket.on('suspect-accuse-open', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !serverMapIsPostCaseLobbyB(space)) return reply({ ok: false, error: 'ต้องอยู่โถง LobbyB' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host เปิดพิจารณาคดีได้' });
+    const prog = playerSuspectProgressFromEvidence(space, socket.id);
+    if (![0, 1, 2].every((i) => (prog[i] || 0) >= 1)) return reply({ ok: false, error: 'ต้องสืบครบทั้ง 3 ผู้ต้องสงสัยก่อน (เก็บหลักฐานอย่างน้อย 1 ใบต่อคน)' });
+    if (typeof space.culpritIndex !== 'number') space.culpritIndex = Math.floor(Math.random() * 3);
+    space.suspectPhaseActive = false;
+    // เริ่ม "ห้องสรุปหลักฐาน" (ไต่สวน 3 ปากคำ) ก่อนเข้าโหวต
+    space.testimonyActive = true;
+    space.testimonyRound = 0;
+    emitTestimonyOpen(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นส่งหลักฐาน 1–2 ใบในปากคำปัจจุบัน — ใบที่ส่งต้องเป็นใบที่ตัวเองเก็บได้จริง
+  socket.on('testimony-submit', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!space.testimonyActive) return reply({ ok: false, error: 'ไม่อยู่ในขั้นไต่สวน' });
+    if (space.testimonyRevealed) return reply({ ok: false, error: 'ปากคำนี้เปิดเผยแล้ว' });
+    const raw = (data && Array.isArray(data.picks)) ? data.picks : [];
+    const owned = normalizeEvidenceSlotList(clonePlayerEvidence(space, socket.id)[space.testimonyRound] || []);
+    const required = Math.max(1, Math.min(2, owned.length));
+    /* raw = ตำแหน่ง index ใน owned (0..n-1) → เก็บเป็น card object */
+    const usedIdx = [];
+    const picks = [];
+    raw.forEach((n) => {
+      const v = Math.floor(Number(n));
+      if (v >= 0 && v < owned.length && usedIdx.indexOf(v) === -1) { usedIdx.push(v); picks.push(owned[v]); }
+    });
+    if (owned.length === 0) {
+      /* ไม่มีหลักฐานของ suspect รอบนี้ — ข้ามได้ (auto-submit ว่าง) */
+      if (!space.testimonySubmitted) space.testimonySubmitted = {};
+      space.testimonySubmitted[socket.id] = [];
+      emitTestimonyStatus(sid, space);
+      /* ไม่ auto-reveal — รอ host กดปุ่ม "เปิดหลักฐานทั้งหมด" เองตาม design */
+      return reply({ ok: true, skipped: true });
+    }
+    if (picks.length !== required) {
+      return reply({ ok: false, error: 'ต้องเลือกหลักฐาน ' + required + ' ใบ (ตามจำนวนที่เก็บได้)' });
+    }
+    if (!space.testimonySubmitted) space.testimonySubmitted = {};
+    space.testimonySubmitted[socket.id] = picks.slice(0, required);
+    emitTestimonyStatus(sid, space);
+    /* ไม่ auto-reveal — รอ host กดปุ่ม "เปิดหลักฐานทั้งหมด" เองตาม design
+       (UX: host ต้องเห็นปุ่มเปลี่ยนรูปจาก btn-send → btn-open-card แล้วค่อยกดเอง) */
+    reply({ ok: true });
+  });
+
+  // Host บังคับเปิดเผยหลักฐานทั้งหมด (เผื่อมีคนยังไม่ส่ง)
+  socket.on('testimony-reveal', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (!space.testimonyActive || space.testimonyRevealed) return reply({ ok: false, error: 'เปิดเผยไม่ได้ตอนนี้' });
+    doTestimonyReveal(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นกด READY ไปปากคำถัดไป (หลังเปิดเผยผล) — ไม่ auto-advance รอ host กด "เริ่มพิจารณาคดี"
+  socket.on('testimony-ready-next', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!space.testimonyActive || !space.testimonyRevealed) return reply({ ok: false, error: 'ยังเปิดเผยไม่ได้' });
+    if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+    space.testimonyReadyNext[socket.id] = true;
+    const totalRN = testimonyTotalParticipants(space);
+    io.to(sid).emit('testimony-ready-update', {
+      ready: Object.keys(space.testimonyReadyNext),
+      totalPlayers: totalRN,
+      hostId: space.hostId,
+    });
+    /* ไม่ auto-advance — รอ host กดปุ่ม "เริ่มพิจารณาคดี" (btn-start-vote.png) เอง */
+    reply({ ok: true });
+  });
+
+  // Host กดปุ่ม "เริ่มพิจารณาคดี" (btn-start-vote) — ไปปากคำถัดไป/เข้าโหวต
+  socket.on('testimony-start-vote', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (!space.testimonyActive || !space.testimonyRevealed) return reply({ ok: false, error: 'ยังไม่ถึงเวลา' });
+    /* host อาจกดก่อนทุกคน READY — บังคับให้ทุกคน (รวมบอท) ready ก่อน advance เพื่อให้ flow consistent */
+    if (!space.testimonyReadyNext) space.testimonyReadyNext = {};
+    testimonyBotIds(space).forEach((bid) => { space.testimonyReadyNext[bid] = true; });
+    advanceTestimony(sid, space);
+    reply({ ok: true });
+  });
+
+  // ผู้เล่นโหวตชี้ตัวคนร้าย
+  socket.on('trial-vote', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.trialPhase !== 'voting') return reply({ ok: false, error: 'ยังไม่ถึงเวลาโหวต' });
+    if (socket.id === space.silencedPlayerId) return reply({ ok: false, error: 'คุณถูกปิดปาก (Silence) — โหวตรอบนี้ไม่ได้', silenced: true });
+    let idx = Math.floor(Number(data && data.index));
+    if (Number.isNaN(idx) || idx < 0 || idx > 2) return reply({ ok: false, error: 'เลือกผู้ต้องสงสัยไม่ถูกต้อง' });
+    space.trialVotes = space.trialVotes || {};
+    space.trialVotes[socket.id] = idx;
+    emitTrialVoteUpdate(sid, space);
+    const totalTV = trialEligibleVoterTotal(space);
+    if (Object.keys(space.trialVotes).length >= totalTV && totalTV > 0) {
+      computeAndEmitTrialResult(sid, space);
+    }
+    reply({ ok: true, index: idx });
+  });
+
+  // Host บังคับเปิดเผยผล (เช่นมีคนยังไม่โหวต)
+  socket.on('trial-reveal', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะ host' });
+    if (space.trialPhase !== 'voting') return reply({ ok: false, error: 'ไม่อยู่ในขั้นโหวต' });
+    computeAndEmitTrialResult(sid, space);
+    reply({ ok: true });
+  });
+
+  /* โหวตเลือกผู้เล่น 1 คน (Silence/Ban) */
+  socket.on('player-pick-vote', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    const pv = space.pickVote;
+    if (!pv || pv.resolved) return reply({ ok: false, error: 'ไม่มีการโหวตที่เปิดอยู่' });
+    const tid = String((data && data.targetId) || '');
+    if (!pv.candidates.some((c) => c.id === tid)) return reply({ ok: false, error: 'เป้าหมายไม่ถูกต้อง' });
+    pv.votes[socket.id] = tid;
+    reply({ ok: true, targetId: tid });
+    emitPickVoteUpdate(sid, space);
+    maybeResolvePickVote(sid, space);
+  });
+
+  /** Host Console — ตั้งจำนวนรวม (คน+บอท) ไม่เกิน LOBBY_SLOT_TOTAL */
+  socket.on('host-console-apply', (data, cb) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || space.hostId !== socket.id) {
+      return cb && cb({ ok: false, error: 'เฉพาะ Host เท่านั้น' });
+    }
+    const humans = space.peers.size;
+    let total = parseInt(data && data.totalSlots, 10);
+    if (!Number.isFinite(total)) total = humans + effectiveBotSlotCount(space);
+    total = Math.min(LOBBY_SLOT_TOTAL, Math.max(humans, total));
+    let bots = parseInt(data && data.botSlotCount, 10);
+    if (!Number.isFinite(bots)) bots = total - humans;
+    bots = Math.max(0, Math.min(LOBBY_SLOT_TOTAL - humans, bots));
+    total = humans + bots;
+    space.botSlotCount = bots;
+    space.maxPlayers = Math.max(humans, total - bots);
+    const lobbyBotThemes = syncLobbyBotThemeSlots(space);
+    io.to(sid).emit('host-console-settings', {
+      maxPlayers: space.maxPlayers,
+      botSlotCount: space.botSlotCount,
+      totalSlots: total,
+      lobbyBotThemes,
+    });
+    emitLobbyTintSync(sid, space);
+    cb && cb({ ok: true, maxPlayers: space.maxPlayers, botSlotCount: space.botSlotCount, totalSlots: total, lobbyBotThemes });
+  });
+
+  socket.on('host-console-kick-peer', ({ targetId }, cb) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || space.hostId !== socket.id) {
+      return cb && cb({ ok: false, error: 'เฉพาะ Host เท่านั้น' });
+    }
+    const tid = targetId != null ? String(targetId) : '';
+    if (!tid || tid === socket.id || tid === space.hostId) {
+      return cb && cb({ ok: false, error: 'ไม่สามารถลบผู้เล่นนี้ได้' });
+    }
+    if (!space.peers.has(tid)) {
+      return cb && cb({ ok: false, error: 'ไม่พบผู้เล่นในห้อง' });
+    }
+    const targetSock = io.sockets.sockets.get(tid);
+    if (targetSock) {
+      targetSock.emit('host-console-kicked', { message: 'คุณถูก Host นำออกจากห้อง' });
+      targetSock.leave(sid);
+      delete targetSock.data.spaceId;
+    }
+    space.peers.delete(tid);
+    io.to(sid).emit('user-left', { id: tid });
+    cb && cb({ ok: true });
+  });
+
+  /* พร้อมแล้ว — ไม่บังคับจำนวนคนในห้อง */
+  socket.on('set-ready', ({ ready }) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        if (p) p.ready = !!ready;
+        io.to(sid).emit('peer-ready', { id: socket.id, ready: !!ready });
+        break;
+      }
+    }
+  });
+
+  socket.on('start-game', (data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id) && space.hostId === socket.id) {
+        let lobbyLevel = (data && data.lobbyLevel != null) ? String(data.lobbyLevel).trim() : '';
+        let caseId = (data && data.caseId != null) ? String(data.caseId).trim() : '';
+        if (lobbyLevel && !/^[1-5]$/.test(lobbyLevel)) lobbyLevel = '';
+        /* 15 คดี (5 ระดับ × 3 คดี) — caseId 1-15 */
+        if (caseId && !/^(?:[1-9]|1[0-5])$/.test(caseId)) caseId = '';
+        ensurePostCaseLobbyMapLoaded();
+        const mdBefore = getLobbyLayoutMapForSpace(space);
+        if (mdBefore && mdBefore.gameType === 'quiz') {
+          const qErr = validateQuizMap(mdBefore);
+          if (qErr) return reply({ ok: false, error: qErr });
+          clearSpaceQuizTimers(space);
+          startQuizGame(sid, space, mdBefore);
+          io.to(sid).emit('game-start', { quizMode: true, stayInRoomLobby: true });
+          return reply({ ok: true });
+        }
+        const detectiveB = !!(data && data.detectiveLobbyBStart);
+        if (detectiveB && (!lobbyLevel || !caseId)) {
+          return reply({ ok: false, error: 'กรุณาเลือกระดับและคดีให้ครบก่อนเริ่ม' });
+        }
+        const mapNameNorm = mdBefore ? String(mdBefore.name || '').trim().toLowerCase() : '';
+        const isNamedLobbyA = mapNameNorm === 'lobbya';
+        const notZepOrFrogger = !!(mdBefore && mdBefore.gameType !== 'zep' && mdBefore.gameType !== 'frogger' && mdBefore.gameType !== 'gauntlet');
+        /* LobbyA: gameType lobby, หรือชื่อฉาก LobbyA (กันเซฟผิดเป็น zep), หรือ wizard + ไม่ใช่มินิเกม zep/frogger/gauntlet (รวม quiz/stack ฯลฯ) */
+        const isLobbyADetectiveStart = !!(mdBefore && !lobbySpaceAlreadyLobbyB(space, mdBefore)
+          && lobbyLevel && caseId && maps.has(POST_CASE_LOBBY_SPACE_ID)
+          && (
+            mdBefore.gameType === 'lobby'
+            || isNamedLobbyA
+            || (detectiveB && notZepOrFrogger)
+          ));
+        if (detectiveB && lobbyLevel && caseId && !isLobbyADetectiveStart) {
+          return reply({ ok: false, error: 'ย้ายไป LobbyB ไม่ได้ — ต้องอยู่ฉาก LobbyA (หรือล็อบบี้ชื่อ LobbyA) และเซิร์ฟต้องมีไฟล์แผนที่ LobbyB' });
+        }
+        if (!lobbyHostStandingInStartArea(space, socket.id)) {
+          return reply({ ok: false, error: 'ยืนในพื้นที่เริ่มเกม (สีส้มในเอดิเตอร์) ก่อนกดเริ่ม' });
+        }
+        if (isLobbyADetectiveStart) {
+          assignDetectiveSuspectCardMinigames(space);
+          space.mapId = POST_CASE_LOBBY_SPACE_ID;
+          space.mapData = maps.get(POST_CASE_LOBBY_SPACE_ID);
+          const caseNickWl = new Set();
+          space.peers.forEach((p) => {
+            caseNickWl.add(normalizeLobbyNickname(p.nickname));
+          });
+          space.caseParticipantNicknames = caseNickWl;
+          space.joinLocked = true;
+          space.troublesomeOfferSent = false;
+          space.troublesomeTargetId = null;
+          space.troublesomeResponseReceived = false;
+          space.suspectPhaseActive = false;
+          space.suspectPickIndex = 0;
+          space.detectiveLobbyLevel = Number(lobbyLevel) || 1;
+          space.detectiveLobbyCaseId = Number(caseId) || 1;
+          space.caseId = Number(caseId) || 1;
+          if (space.troublesomeEligible) space.troublesomeEligible.clear();
+          else space.troublesomeEligible = new Set();
+          if (space.troublesomeDebTimer) clearTimeout(space.troublesomeDebTimer);
+          if (space.troublesomeMaxTimer) clearTimeout(space.troublesomeMaxTimer);
+          space.troublesomeDebTimer = null;
+          space.troublesomeMaxTimer = null;
+          initTroublesomeState(space);
+          let li = 0;
+          space.peers.forEach((p) => {
+            const sp = pickSpawnForJoin(space.mapData, li++);
+            p.x = sp.x;
+            p.y = sp.y;
+            p.direction = 'down';
+          });
+          const peersSnap = [...space.peers.values()].map((p) => ({
+            id: p.id,
+            x: p.x,
+            y: p.y,
+            direction: p.direction || 'down',
+            nickname: p.nickname,
+            ready: !!p.ready,
+            characterId: p.characterId ?? null
+          }));
+          space.peers.forEach((_p, pid) => {
+            const sock = io.sockets.sockets.get(pid);
+            if (!sock) return;
+            sock.emit('game-start', {
+              stayInRoomLobby: true,
+              mapId: POST_CASE_LOBBY_SPACE_ID,
+              lobbyLevel,
+              caseId,
+              peersSnap,
+              cardMinigames: space.suspectCardMinigames || [],
+              myPlayerEvidence: clonePlayerEvidence(space, pid),
+              suspectProgress: playerSuspectProgressFromEvidence(space, pid),
+            });
+          });
+          return reply({ ok: true });
+        }
+        const mapId = (data && data.mapId) ? String(data.mapId).trim() : null;
+        let peersSnap = null;
+        let gauntletEndsAtEmit = undefined;
+        if (mapId && maps.has(mapId)) {
+          const prevMapIdForReturn = space.mapId;
+          space.mapId = mapId;
+          space.mapData = maps.get(mapId);
+          const md = space.mapData;
+          if (md && md.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(md)) {
+            space.peers.forEach((p) => {
+              const sn = snapPositionOntoQuizBattlePathServer(md, Number(p.x), Number(p.y));
+              p.x = sn.x;
+              p.y = sn.y;
+            });
+          }
+          if (!md || md.gameType !== 'gauntlet') {
+            stopGauntletTicker(space);
+            space.gauntletReturnMapId = null;
+            space.gauntletRun = null;
+          }
+          if (md && md.gameType === 'gauntlet') {
+            stopGauntletTicker(space);
+            space.gauntletReturnMapId = prevMapIdForReturn;
+            initGauntletPeersAll(space, md);
+            ensureGauntletEndsAtIfNeeded(space);
+            startGauntletTicker(sid, space);
+            gauntletEndsAtEmit = space.gauntletRun && space.gauntletRun.endsAt != null
+              ? space.gauntletRun.endsAt
+              : null;
+            peersSnap = [...space.peers.values()].map((p) => ({
+              id: p.id,
+              x: p.x,
+              y: p.y,
+              direction: p.direction || 'down',
+              nickname: p.nickname,
+              ready: !!p.ready,
+              characterId: p.characterId ?? null,
+              gauntletJumpTicks: p.gauntletJumpTicks || 0,
+              gauntletScore: p.gauntletScore || 0,
+              gauntletEliminated: !!p.gauntletEliminated,
+            }));
+          }
+          if (md && (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space))) {
+            if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+            space.peers.forEach((_p, id) => {
+              space.gauntletCrownLobbyReady[id] = false;
+            });
+            space.gauntletRun = newBalloonBossShellGauntletRunState();
+          }
+        }
+        const gameStartPayload = {
+          mapId: mapId || undefined,
+          lobbyLevel: lobbyLevel || undefined,
+          caseId: caseId || undefined,
+          peersSnap: peersSnap || undefined,
+        };
+        if (peersSnap) gameStartPayload.gauntletEndsAt = gauntletEndsAtEmit != null ? gauntletEndsAtEmit : null;
+        if (mapId && maps.has(mapId) && (isBalloonBossMissionShellSpace(space) || isQuizQuestionMissionShellSpace(space) || isStackTowerMissionShellSpace(space) || isJumpSurviveMissionShellSpace(space) || isSpaceShooterMissionShellSpace(space))) {
+          const grs = space.gauntletRun;
+          gameStartPayload.gauntletCrownRunHeld = !!(grs && grs.crownRunHeld);
+        }
+        io.to(sid).emit('game-start', gameStartPayload);
+        return reply({ ok: true });
+      }
+    }
+    reply({ ok: false, error: 'ไม่ใช่ host' });
+  });
+
+  socket.on('disconnect', () => {
+    qbLeaveRoom(socket); // Quiz Battle cleanup (รันก่อนเสมอ แม้ไม่ได้อยู่ใน space)
+    let sid = socket.data.spaceId;
+    let space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) {
+      for (const [s, sp] of spaces) {
+        if (sp.peers.has(socket.id)) { sid = s; space = sp; break; }
+      }
+    }
+    if (!space || !space.peers.has(socket.id)) return;
+    const wasHost = space.hostId === socket.id;
+    if (space.voiceInits) delete space.voiceInits[socket.id];
+    if (space.troublesomeEligible) space.troublesomeEligible.delete(socket.id);
+    if (space.quizSession && space.quizSession.players) delete space.quizSession.players[socket.id];
+    if (space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket.delete(socket.id);
+    if (space.quizCarryLobbyReady && typeof space.quizCarryLobbyReady === 'object') {
+      delete space.quizCarryLobbyReady[socket.id];
+      if (spaceAllowsQuizCarryLobbyRelaxed(space)) {
+        io.to(sid).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+      }
+    }
+    if (space.gauntletCrownLobbyReady && typeof space.gauntletCrownLobbyReady === 'object') {
+      delete space.gauntletCrownLobbyReady[socket.id];
+      if (isCrownLobbyShellSpace(space)) {
+        io.to(sid).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+      }
+    }
+    space.peers.delete(socket.id);
+    if (space.peers.size === 0) {
+      stopGauntletTicker(space);
+      clearSpaceQuizTimers(space);
+      space.quizSession = null;
+      /* ระหว่างมินิเกมสืบสวน / คดีล็อก — อย่าลบห้องเมื่อเปลี่ยนหน้า room-lobby → play.html (รอ join กลับ) */
+      const keepCaseSpace = !!(space.detectiveMinigameActive
+        || (space.joinLocked && space.caseParticipantNicknames && space.caseParticipantNicknames.size > 0));
+      if (keepCaseSpace) {
+        space.hostId = null;
+        return;
+      }
+      spaces.delete(sid);
+    } else {
+      if (wasHost) {
+        const firstPeer = space.peers.values().next().value;
+        if (firstPeer) {
+          space.hostId = firstPeer.id;
+          io.to(sid).emit('host-changed', { hostId: firstPeer.id });
+        }
+      }
+      io.to(sid).emit('user-left', { id: socket.id });
+    }
+  });
+
+  socket.on('gauntlet-jump', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    const p = space.peers.get(socket.id);
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') return;
+    if (space.gauntletRun && space.gauntletRun.crownRunHeld) return;
+    if (isGauntletCrownHeistMapBySpace(space) && p.gauntletEliminated) return;
+    if ((p.gauntletJumpTicks || 0) > 0) return;
+    p.gauntletJumpPending = true;
+  });
+
+  socket.on('gauntlet-crown-begin-run', (cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false });
+    const gr = space.gauntletRun;
+    if (!gr) return reply({ ok: false });
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    const okGauntletCrown = md && md.gameType === 'gauntlet' && isGauntletCrownHeistMapBySpace(space);
+    const okBalloonShell = md && md.gameType === 'balloon_boss' && isBalloonBossMissionShellSpace(space);
+    if (!okGauntletCrown && !okBalloonShell) return reply({ ok: false });
+    const previewRoom = !!(space.previewEditorTest
+      || (space.isPrivate && String(space.spaceName || '').toLowerCase() === 'preview'));
+    if (!previewRoom && space.hostId !== socket.id) return reply({ ok: false, error: 'host' });
+    if (!gr.crownRunHeld) return reply({ ok: true, already: true });
+    gr.crownRunHeld = false;
+    if (okGauntletCrown) {
+      ensureGauntletEndsAtIfNeeded(space);
+      emitGauntletSync(sid, space);
+    } else {
+      emitBalloonBossMissionShellGauntletSync(sid, space);
+    }
+    return reply({ ok: true });
+  });
+
+  /** Client ส่งแถว y ของบอททดสอบ (ไม่อยู่ใน peers) เพื่อให้ spawn lane obstacles บนแถวนั้น */
+  socket.on('gauntlet-preview-rows', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+    if (!md || md.gameType !== 'gauntlet') return;
+    if (space.gauntletRun && space.gauntletRun.crownRunHeld) return;
+    const hh = md.height || 15;
+    if (!space.gauntletPreviewRowsBySocket) space.gauntletPreviewRowsBySocket = new Map();
+    const raw = data && Array.isArray(data.ys) ? data.ys : [];
+    const set = new Set();
+    const cap = Math.min(raw.length, 48);
+    for (let i = 0; i < cap; i++) {
+      const fy = Math.floor(Number(raw[i]));
+      if (Number.isFinite(fy) && fy >= 0 && fy < hh) set.add(fy);
+    }
+    space.gauntletPreviewRowsBySocket.set(socket.id, set);
+  });
+
+  socket.on('quiz-carry-lobby-sync-request', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return;
+    if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') {
+      space.quizCarryLobbyReady = {};
+    }
+    for (const id of space.peers.keys()) {
+      if (space.quizCarryLobbyReady[id] === undefined) space.quizCarryLobbyReady[id] = false;
+    }
+    socket.emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+  });
+
+  socket.on('quiz-carry-lobby-ready', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return;
+    if (!space.quizCarryLobbyReady || typeof space.quizCarryLobbyReady !== 'object') space.quizCarryLobbyReady = {};
+    for (const id of space.peers.keys()) {
+      if (space.quizCarryLobbyReady[id] === undefined) space.quizCarryLobbyReady[id] = false;
+    }
+    space.quizCarryLobbyReady[socket.id] = !!(data && data.ready);
+    io.to(sid).emit('quiz-carry-lobby-sync', { readyMap: { ...space.quizCarryLobbyReady } });
+  });
+
+  socket.on('quiz-carry-lobby-start', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!spaceAllowsQuizCarryLobbyRelaxed(space)) return reply({ ok: false, error: 'ห้องนี้ไม่ใช่โหมด lobby หยิบมาวาง / พรีวิว' });
+    if (space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะโฮสต์กด START' });
+    const rm = space.quizCarryLobbyReady || {};
+    const humanIds = [...space.peers.keys()];
+    const allReady = humanIds.length > 0 && humanIds.every((id) => rm[id]);
+    if (!allReady) return reply({ ok: false, error: 'ยังมีผู้เล่นที่ยังไม่ Ready' });
+    io.to(sid).emit('quiz-carry-lobby-started', {});
+    reply({ ok: true });
+  });
+
+  socket.on('gauntlet-crown-lobby-sync-request', () => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!isCrownLobbyShellSpace(space)) return;
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') {
+      space.gauntletCrownLobbyReady = {};
+    }
+    for (const id of space.peers.keys()) {
+      if (space.gauntletCrownLobbyReady[id] === undefined) space.gauntletCrownLobbyReady[id] = false;
+    }
+    socket.emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+  });
+
+  socket.on('gauntlet-crown-lobby-ready', (data) => {
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return;
+    if (!isCrownLobbyShellSpace(space)) return;
+    if (!space.gauntletCrownLobbyReady || typeof space.gauntletCrownLobbyReady !== 'object') space.gauntletCrownLobbyReady = {};
+    for (const id of space.peers.keys()) {
+      if (space.gauntletCrownLobbyReady[id] === undefined) space.gauntletCrownLobbyReady[id] = false;
+    }
+    space.gauntletCrownLobbyReady[socket.id] = !!(data && data.ready);
+    io.to(sid).emit('gauntlet-crown-lobby-sync', { readyMap: { ...space.gauntletCrownLobbyReady } });
+  });
+
+  socket.on('gauntlet-crown-lobby-start', (_data, cb) => {
+    const reply = typeof cb === 'function' ? cb : () => {};
+    const sid = socket.data.spaceId;
+    const space = sid ? spaces.get(sid) : null;
+    if (!space || !space.peers.has(socket.id)) return reply({ ok: false, error: 'ไม่อยู่ในห้อง' });
+    if (!isCrownLobbyShellSpace(space)) return reply({ ok: false, error: 'ไม่ใช่แมป crown / Mega Virus ภารกิจ' });
+    const soloRoom = space.peers.size === 1;
+    if (!soloRoom && space.hostId !== socket.id) return reply({ ok: false, error: 'เฉพาะโฮสต์กด START' });
+    const gr = space.gauntletRun;
+    if (!gr || !gr.crownRunHeld) return reply({ ok: false, error: 'เริ่มแล้ว' });
+    const rm = space.gauntletCrownLobbyReady || {};
+    const humanIds = [...space.peers.keys()];
+    const allReady = humanIds.length > 0 && humanIds.every((id) => rm[id]);
+    if (!allReady) return reply({ ok: false, error: 'ยังมีผู้เล่นที่ยังไม่ Ready' });
+    if (isQuizQuestionMissionShellSpace(space)) {
+      const mdQuiz = maps.get(space.mapId) || space.mapData;
+      if (mdQuiz && mdQuiz.gameType === 'quiz') {
+        clearSpaceQuizTimers(space);
+        startQuizGame(sid, space, mdQuiz);
+      }
+    }
+    io.to(sid).emit('gauntlet-crown-lobby-started', {});
+    reply({ ok: true });
+  });
+
+  socket.on('move', (data) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+        if (md && md.gameType === 'gauntlet') {
+          const out = { id: socket.id, x: p.x, y: p.y, direction: p.direction || 'down', characterId: p.characterId };
+          socket.emit('user-move', out);
+          break;
+        }
+        let nx = data.x;
+        let ny = data.y;
+        const sess = space.quizSession;
+        const mdQuiz = (sess && sess.quizMapMd) || md;
+        if (p && sess && sess.active && mdQuiz && mdQuiz.gameType === 'quiz') {
+          const st = sess.players && sess.players[socket.id];
+          if (st && !st.eliminated) {
+            const tx = Math.floor(Number(nx));
+            const ty = Math.floor(Number(ny));
+            const blockTrue = st.cannotTrue && quizCellOn(mdQuiz.quizTrueArea, tx, ty);
+            const blockFalse = st.cannotFalse && quizCellOn(mdQuiz.quizFalseArea, tx, ty);
+            if (blockTrue || blockFalse) {
+              nx = p.x;
+              ny = p.y;
+            }
+          }
+        }
+        if (p && md && md.gameType === 'quiz_carry' && md.quizCarryHubArea) {
+          const txN = Number(nx);
+          const tyN = Number(ny);
+          if (Number.isFinite(txN) && Number.isFinite(tyN) && quizCarryFootprintOverlapsHubServer(md, txN, tyN)) {
+            nx = p.x;
+            ny = p.y;
+          }
+        }
+        if (p && md && md.gameType === 'quiz_battle' && quizBattlePathModeActiveServer(md)) {
+          const txN = Number(nx);
+          const tyN = Number(ny);
+          if (!Number.isFinite(txN) || !Number.isFinite(tyN)) {
+            nx = p.x;
+            ny = p.y;
+          } else if (!quizBattleFootprintFullyOnPathServer(md, txN, tyN)) {
+            nx = p.x;
+            ny = p.y;
+          }
+          const sn = snapPositionOntoQuizBattlePathServer(md, Number(nx), Number(ny));
+          nx = sn.x;
+          ny = sn.y;
+        }
+        if (p && md && md.gameType === 'space_shooter' && data && data.spaceShooterScore != null) {
+          const ns = Math.floor(Number(data.spaceShooterScore));
+          if (Number.isFinite(ns) && ns >= 0) {
+            const prev = Math.max(0, p.spaceShooterScore | 0);
+            if (ns <= prev + 35) p.spaceShooterScore = Math.max(prev, ns);
+          }
+        }
+        if (p && md && md.gameType === 'balloon_boss' && data) {
+          const bbDefaultBalloons = Math.max(1, Math.min(12, Math.floor(Number(md.balloonBossBalloonsPerPlayer)) || 3));
+          if (data.balloonBossScore != null) {
+            const ns = Math.floor(Number(data.balloonBossScore));
+            if (Number.isFinite(ns) && ns >= 0) {
+              const prev = Math.max(0, p.balloonBossScore | 0);
+              if (ns <= prev + 35) p.balloonBossScore = Math.max(prev, ns);
+            }
+          }
+          if (data.balloonBossBossDmg != null) {
+            const nd = Math.floor(Number(data.balloonBossBossDmg));
+            if (Number.isFinite(nd) && nd >= 0) {
+              const prevD = Math.max(0, p.balloonBossBossDmg | 0);
+              if (nd <= prevD + 8) p.balloonBossBossDmg = Math.max(prevD, nd);
+            }
+          }
+          if (data.balloonBossBalloons != null) {
+            const nb = Math.floor(Number(data.balloonBossBalloons));
+            if (Number.isFinite(nb) && nb >= 0) {
+              const prevB = typeof p.balloonBossBalloons === 'number' && Number.isFinite(p.balloonBossBalloons)
+                ? Math.floor(p.balloonBossBalloons)
+                : bbDefaultBalloons;
+              if (nb <= prevB && nb >= Math.max(0, prevB - 2)) p.balloonBossBalloons = nb;
+            }
+          }
+          if (data.balloonBossEliminated) p.balloonBossEliminated = true;
+        }
+        if (p) {
+          const prevX = Number(p.x);
+          const prevY = Number(p.y);
+          const prevDir = p.direction || 'down';
+          p.x = nx;
+          p.y = ny;
+          p.direction = data.direction || p.direction;
+          const posUnchanged = Math.abs(nx - prevX) < 1e-5 && Math.abs(ny - prevY) < 1e-5 && p.direction === prevDir;
+          if (!posUnchanged) {
+            const out = { id: socket.id, x: nx, y: ny, direction: p.direction, characterId: p.characterId };
+            if (md && md.gameType === 'space_shooter') out.spaceShooterScore = Math.max(0, p.spaceShooterScore | 0);
+            if (md && md.gameType === 'balloon_boss') {
+              const bbDef = Math.max(1, Math.min(12, Math.floor(Number(md.balloonBossBalloonsPerPlayer)) || 3));
+              out.balloonBossScore = Math.max(0, p.balloonBossScore | 0);
+              out.balloonBossBossDmg = Math.max(0, p.balloonBossBossDmg | 0);
+              out.balloonBossBalloons = typeof p.balloonBossBalloons === 'number' && Number.isFinite(p.balloonBossBalloons)
+                ? Math.max(0, Math.floor(p.balloonBossBalloons))
+                : bbDef;
+              out.balloonBossEliminated = !!p.balloonBossEliminated;
+            }
+            if (nx !== data.x || ny !== data.y) socket.emit('user-move', out);
+            socket.to(sid).emit('user-move', out);
+          }
+        }
+        break;
+      }
+    }
+  });
+
+  socket.on('lobby-interact', (data, ack) => {
+    const reply = typeof ack === 'function' ? ack : () => {};
+    const tx = Math.floor(Number(data && data.x));
+    const ty = Math.floor(Number(data && data.y));
+    for (const [sid, space] of spaces) {
+      if (!space.peers.has(socket.id)) continue;
+      const p = space.peers.get(socket.id);
+      const md = (space.mapId && maps.get(space.mapId)) || space.mapData;
+      if (!md) return reply({ ok: false, error: 'ไม่มีแผนที่' });
+      const w = md.width || 20;
+      const h = md.height || 15;
+      if (Number.isNaN(tx) || Number.isNaN(ty) || tx < 0 || tx >= w || ty < 0 || ty >= h) {
+        return reply({ ok: false, error: 'จุดไม่ถูกต้อง' });
+      }
+      if (!md.interactive || !md.interactive[ty] || md.interactive[ty][tx] !== 1) {
+        return reply({ ok: false, error: 'ไม่มีจุดโต้ตอบที่นี่' });
+      }
+      const px = Math.floor(Number(p.x));
+      const py = Math.floor(Number(p.y));
+      const neighbors = [[0, 0], [0, -1], [0, 1], [-1, 0], [1, 0]];
+      let near = false;
+      for (const [dx, dy] of neighbors) {
+        if (px + dx === tx && py + dy === ty) { near = true; break; }
+      }
+      if (!near) return reply({ ok: false, error: 'เข้าใกล้จุดสีเขียว (ช่องโต้ตอบ) ก่อน' });
+      if (!p.ready) return reply({ ok: false, error: 'กดพร้อมก่อน แล้วค่อยกด F ที่ช่องสีเขียว' });
+      const nick = (p.nickname || '').trim() || 'ผู้เล่น';
+      io.to(sid).emit('lobby-interact', { id: socket.id, nickname: nick, x: tx, y: ty });
+      return reply({ ok: true });
+    }
+    reply({ ok: false, error: 'ไม่ได้อยู่ในห้อง' });
+  });
+
+  socket.on('chat', (text) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        const nick = space.peers.get(socket.id)?.nickname || '';
+        io.to(sid).emit('chat', { id: socket.id, text, time: new Date(), nickname: nick });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-state', ({ micOn }) => {
+    for (const [sid, space] of spaces) {
+      if (space.peers.has(socket.id)) {
+        const p = space.peers.get(socket.id);
+        if (p) p.voiceMicOn = micOn !== false;
+        if (micOn === false && space.voiceInits) delete space.voiceInits[socket.id];
+        io.to(sid).emit('peer-voice-state', { id: socket.id, micOn: micOn !== false });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-activity', ({ level }) => {
+    const sid = socket.data.spaceId;
+    if (!sid || !spaces.get(sid)) return;
+    const until = Date.now() + 400;
+    io.to(sid).emit('peer-speaking', { id: socket.id, level: typeof level === 'number' ? level : 0.5, until });
+  });
+
+  socket.on('voice-init', (data) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        if (!space.voiceInits) space.voiceInits = {};
+        space.voiceInits[socket.id] = data;
+        io.to(sid).emit('voice-init', { from: socket.id, data });
+        break;
+      }
+    }
+  });
+
+  socket.on('voice-chunk', (data) => {
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid)) {
+        socket.to(sid).emit('voice-chunk', { from: socket.id, data });
+        break;
+      }
+    }
+  });
+
+  socket.on('webrtc-signal', (data) => {
+    const { to, type, sdp, candidate } = data;
+    if (!to) return;
+    for (const [sid, space] of spaces) {
+      if (socket.rooms.has(sid) && space.peers.has(to)) {
+        io.to(to).emit('webrtc-signal', { from: socket.id, type, sdp, candidate });
+        break;
+      }
+    }
+  });
+});
+
+loadMaps();
+server.on('error', (err) => {
+  if (err && (err.code === 'EACCES' || err.code === 'EADDRINUSE')) {
+    console.error('');
+    console.error('[Game] Cannot listen on', HOST + ':' + PORT, '(' + err.code + ').');
+    console.error('  Windows AppServ:');
+    console.error('    set HOST=127.0.0.1');
+    console.error('    set PORT=13010');
+    console.error('    node server.js');
+    console.error('  Or double-click start-dev.cmd');
+    console.error('');
+    process.exit(1);
+  }
+  throw err;
+});
+server.listen(PORT, HOST, () => console.log('Game server listening on http://' + HOST + ':' + PORT + BASE_PATH));
\ No newline at end of file
diff --git a/www/html/Quiz-Battle/index.html b/www/html/Quiz-Battle/index.html
index 6f0096e..a25722c 100644
--- a/www/html/Quiz-Battle/index.html
+++ b/www/html/Quiz-Battle/index.html
@@ -45,6 +45,6 @@
   </div>
 
   <script src="../app-base.js?v=2"></script>
-  <script src="quiz-battle.js?v=0.0220"></script>
+  <script src="quiz-battle.js?v=0.0500"></script>
 </body>
 </html>
diff --git a/www/html/Quiz-Battle/index.html.bak-20260605-050107 b/www/html/Quiz-Battle/index.html.bak-20260605-050107
new file mode 100644
index 0000000..6f0096e
--- /dev/null
+++ b/www/html/Quiz-Battle/index.html.bak-20260605-050107
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+  <title>Quiz Battle — JD JUSTICE DIVERS</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Kanit:wght@500;600&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="style.css?v=0.0221">
+</head>
+<body>
+  <div class="qb-bg" aria-hidden="true">
+    <img src="IMAGE/Quiz-Battle-bg.png" alt="" class="qb-bg-img" decoding="async">
+  </div>
+  <div class="qb-vignette" aria-hidden="true"></div>
+
+  <div class="qb-ui">
+    <header class="qb-top">
+      <button type="button" class="qb-join-back" id="btn-back" aria-label="กลับล็อบบี้">
+        <img src="IMAGE/btn-exit-room.png" alt="" class="qb-join-back-img" decoding="async">
+      </button>
+      <div class="qb-top-fill" aria-hidden="true"></div>
+      <div class="qb-room-profile-wrap" aria-hidden="true">
+        <div class="qb-room-profile-frame">
+          <div class="qb-room-profile-avatar-viewport">
+            <img src="../Main-Menu/char-main.png" alt="" class="qb-room-profile-avatar" id="lobby-profile-avatar" width="64" height="64" decoding="async">
+          </div>
+        </div>
+      </div>
+    </header>
+
+    <main class="qb-main">
+      <div class="qb-room-banner" aria-hidden="true">
+        <img src="IMAGE/quiz-room.png" alt="" decoding="async">
+      </div>
+      <div class="qb-grid" id="qb-grid" role="list" aria-label="เลือกห้องควิซ"></div>
+      <p class="qb-toast" id="qb-toast" role="status"></p>
+    </main>
+  </div>
+  <div class="room-lobby-br-fixed qb-room-lobby-br-fixed" id="qb-room-lobby-br-fixed">
+    <button type="button" id="btn-voice" class="btn-voice-icon" title="เปิด/ปิดเสียงพูด" aria-label="เปิด/ปิดเสียงพูด">
+      <img src="../Game/img/btn-mic-mute.png" alt="เปิดเสียง" id="btn-voice-icon-img" decoding="async">
+    </button>
+  </div>
+
+  <script src="../app-base.js?v=2"></script>
+  <script src="quiz-battle.js?v=0.0220"></script>
+</body>
+</html>
diff --git a/www/html/Quiz-Battle/index.html.bak-20260605-060954 b/www/html/Quiz-Battle/index.html.bak-20260605-060954
new file mode 100644
index 0000000..bd388e9
--- /dev/null
+++ b/www/html/Quiz-Battle/index.html.bak-20260605-060954
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+  <title>Quiz Battle — JD JUSTICE DIVERS</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Kanit:wght@500;600&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="style.css?v=0.0221">
+</head>
+<body>
+  <div class="qb-bg" aria-hidden="true">
+    <img src="IMAGE/Quiz-Battle-bg.png" alt="" class="qb-bg-img" decoding="async">
+  </div>
+  <div class="qb-vignette" aria-hidden="true"></div>
+
+  <div class="qb-ui">
+    <header class="qb-top">
+      <button type="button" class="qb-join-back" id="btn-back" aria-label="กลับล็อบบี้">
+        <img src="IMAGE/btn-exit-room.png" alt="" class="qb-join-back-img" decoding="async">
+      </button>
+      <div class="qb-top-fill" aria-hidden="true"></div>
+      <div class="qb-room-profile-wrap" aria-hidden="true">
+        <div class="qb-room-profile-frame">
+          <div class="qb-room-profile-avatar-viewport">
+            <img src="../Main-Menu/char-main.png" alt="" class="qb-room-profile-avatar" id="lobby-profile-avatar" width="64" height="64" decoding="async">
+          </div>
+        </div>
+      </div>
+    </header>
+
+    <main class="qb-main">
+      <div class="qb-room-banner" aria-hidden="true">
+        <img src="IMAGE/quiz-room.png" alt="" decoding="async">
+      </div>
+      <div class="qb-grid" id="qb-grid" role="list" aria-label="เลือกห้องควิซ"></div>
+      <p class="qb-toast" id="qb-toast" role="status"></p>
+    </main>
+  </div>
+  <div class="room-lobby-br-fixed qb-room-lobby-br-fixed" id="qb-room-lobby-br-fixed">
+    <button type="button" id="btn-voice" class="btn-voice-icon" title="เปิด/ปิดเสียงพูด" aria-label="เปิด/ปิดเสียงพูด">
+      <img src="../Game/img/btn-mic-mute.png" alt="เปิดเสียง" id="btn-voice-icon-img" decoding="async">
+    </button>
+  </div>
+
+  <!-- จอเล่น Quiz Battle (Kahoot-style 50 คน) — เนื้อหาในจอสร้างด้วย JS -->
+  <div class="qb-play" id="qb-play" aria-hidden="true">
+    <div class="qb-play-top">
+      <span class="qb-play-pill" id="qb-play-room">ห้อง —</span>
+      <span class="qb-play-pill" id="qb-play-players">👥 <b id="qb-play-count">0</b>/50</span>
+      <span class="qb-play-pill" id="qb-play-score" hidden>คะแนน <b id="qb-play-score-val">0</b></span>
+      <button type="button" class="qb-play-leave" id="qb-play-leave">ออก</button>
+    </div>
+    <div class="qb-play-body" id="qb-play-body"></div>
+  </div>
+
+  <script src="../Game/socket.io/socket.io.js"></script>
+  <script src="../app-base.js?v=2"></script>
+  <script src="quiz-battle.js?v=0.0300"></script>
+</body>
+</html>
diff --git a/www/html/Quiz-Battle/index.html.bak-20260605-101436 b/www/html/Quiz-Battle/index.html.bak-20260605-101436
new file mode 100644
index 0000000..51e96d3
--- /dev/null
+++ b/www/html/Quiz-Battle/index.html.bak-20260605-101436
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="th">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+  <title>Quiz Battle — JD JUSTICE DIVERS</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Kanit:wght@500;600&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="style.css?v=0.0221">
+</head>
+<body>
+  <div class="qb-bg" aria-hidden="true">
+    <img src="IMAGE/Quiz-Battle-bg.png" alt="" class="qb-bg-img" decoding="async">
+  </div>
+  <div class="qb-vignette" aria-hidden="true"></div>
+
+  <div class="qb-ui">
+    <header class="qb-top">
+      <button type="button" class="qb-join-back" id="btn-back" aria-label="กลับล็อบบี้">
+        <img src="IMAGE/btn-exit-room.png" alt="" class="qb-join-back-img" decoding="async">
+      </button>
+      <div class="qb-top-fill" aria-hidden="true"></div>
+      <div class="qb-room-profile-wrap" aria-hidden="true">
+        <div class="qb-room-profile-frame">
+          <div class="qb-room-profile-avatar-viewport">
+            <img src="../Main-Menu/char-main.png" alt="" class="qb-room-profile-avatar" id="lobby-profile-avatar" width="64" height="64" decoding="async">
+          </div>
+        </div>
+      </div>
+    </header>
+
+    <main class="qb-main">
+      <div class="qb-room-banner" aria-hidden="true">
+        <img src="IMAGE/quiz-room.png" alt="" decoding="async">
+      </div>
+      <div class="qb-grid" id="qb-grid" role="list" aria-label="เลือกห้องควิซ"></div>
+      <p class="qb-toast" id="qb-toast" role="status"></p>
+    </main>
+  </div>
+  <div class="room-lobby-br-fixed qb-room-lobby-br-fixed" id="qb-room-lobby-br-fixed">
+    <button type="button" id="btn-voice" class="btn-voice-icon" title="เปิด/ปิดเสียงพูด" aria-label="เปิด/ปิดเสียงพูด">
+      <img src="../Game/img/btn-mic-mute.png" alt="เปิดเสียง" id="btn-voice-icon-img" decoding="async">
+    </button>
+  </div>
+
+  <script src="../app-base.js?v=2"></script>
+  <script src="quiz-battle.js?v=0.0400"></script>
+</body>
+</html>
diff --git a/www/html/Quiz-Battle/quiz-battle.js b/www/html/Quiz-Battle/quiz-battle.js
index 7272ccc..5f72bec 100644
--- a/www/html/Quiz-Battle/quiz-battle.js
+++ b/www/html/Quiz-Battle/quiz-battle.js
@@ -7,6 +7,11 @@
   var LOBBY_IDLE_DOWN_PREFIX = 'jdCharLobbyIdleDown:';
   var VOICE_STATE_KEY = 'qbVoiceMicOn';
 
+  /* ฉากเดินตอบแบบ ZEP — แต่ละห้อง(หัวข้อ) = 1 space บนแผนที่ quiz_battle ของหัวข้อนั้น (qbroom1..10) */
+  function mapIdForRoom(n) { return 'qbroom' + n; }
+  var QB_MAX_PLAYERS = 50;
+  var ROOM_NAME_PREFIX = 'Quiz Battle ห้อง ';
+
   if (localStorage.getItem('isLoggedIn') !== 'true') {
     window.location.href = typeof appPath === 'function' ? appPath('/Login/') : '/Login/';
     return;
@@ -15,91 +20,130 @@
   var grid = document.getElementById('qb-grid');
   var toast = document.getElementById('qb-toast');
 
-  function pad2(n) {
-    return n < 10 ? '0' + n : String(n);
-  }
-
-  function setToast(msg) {
-    if (toast) toast.textContent = msg || '';
-  }
+  function pad2(n) { return n < 10 ? '0' + n : String(n); }
+  function setToast(msg) { if (toast) toast.textContent = msg || ''; }
 
   function getSelectedCharacterId() {
-    try {
-      return (localStorage.getItem(CHAR_KEY) || '').trim();
-    } catch (e) {
-      return '';
+    try { return (localStorage.getItem(CHAR_KEY) || '').trim(); } catch (e) { return ''; }
+  }
+
+  function getPlayerName() {
+    var keys = ['gameNickname', 'nickname', 'displayName', 'playerName', 'userName'];
+    for (var i = 0; i < keys.length; i++) {
+      try { var v = (localStorage.getItem(keys[i]) || '').trim(); if (v) return v.slice(0, 24); } catch (e) { /* ignore */ }
     }
+    return 'ผู้เล่น' + Math.floor(1000 + Math.random() * 9000);
   }
 
   function characterDownUrls(id) {
     var enc = encodeURIComponent(id);
-    return [
-      BASE + '/img/characters/' + enc + '_down.png',
-      BASE + '/img/characters/' + enc + '_down_0.png'
-    ];
+    return [BASE + '/img/characters/' + enc + '_down.png', BASE + '/img/characters/' + enc + '_down_0.png'];
   }
 
   function applyProfileAvatar() {
     var av = document.getElementById('lobby-profile-avatar');
     if (!av) return;
     var fallbackAvatar = typeof appPath === 'function' ? appPath('/Main-Menu/char-main.png') : '/Main-Menu/char-main.png';
-
     var cid = getSelectedCharacterId();
-    if (!cid) {
-      av.onerror = null;
-      av.src = fallbackAvatar;
-      return;
-    }
-
-    // ใช้รูปเดียวกับหน้า Main-Lobby ก่อน (composited idle ที่บันทึกไว้)
+    if (!cid) { av.onerror = null; av.src = fallbackAvatar; return; }
     try {
       var savedLobbyAvatar = localStorage.getItem(LOBBY_IDLE_DOWN_PREFIX + cid) || '';
       if (savedLobbyAvatar && savedLobbyAvatar.indexOf('data:image/') === 0) {
-        av.onerror = function () {
-          av.onerror = null;
-          av.src = fallbackAvatar;
-        };
+        av.onerror = function () { av.onerror = null; av.src = fallbackAvatar; };
         av.src = savedLobbyAvatar;
         return;
       }
     } catch (e0) { /* ignore */ }
-
     var urls = characterDownUrls(cid);
     var avStep = 0;
     av.onerror = function () {
       avStep += 1;
       if (avStep === 1) av.src = urls[1];
-      else {
-        av.onerror = null;
-        av.src = fallbackAvatar;
-      }
+      else { av.onerror = null; av.src = fallbackAvatar; }
     };
     av.src = urls[0];
   }
 
+  /* ===================== เข้าฉากเดิน (ZEP walkable) ===================== */
+  var entering = false;
+
+  function roomName(n) { return ROOM_NAME_PREFIX + n; }
+
+  function gotoPlay(spaceId) {
+    var nick = getPlayerName();
+    var url = BASE + '/play.html?space=' + encodeURIComponent(spaceId) +
+      '&map=' + encodeURIComponent(mapIdForRoom(currentRoomNo)) +
+      '&nick=' + encodeURIComponent(nick);
+    try { localStorage.setItem('lastCreatedSpaceName', roomName(currentRoomNo)); } catch (e) { /* ignore */ }
+    window.location.href = url;
+  }
+
+  var currentRoomNo = 0;
+
+  /** หา space สาธารณะของห้องนี้ที่ยังมีคนอยู่ ถ้าไม่มีให้สร้างใหม่ แล้วเข้าเล่น */
   function startQuizForRoom(n) {
-    try {
-      localStorage.setItem('quizBattleRoom', String(n));
-    } catch (e) { /* ignore */ }
-    setToast('เริ่มเกมห้อง ' + n + ' (ต่อระบบจริงในเวอร์ชันถัดไป)');
+    if (entering) return;
+    entering = true;
+    currentRoomNo = n;
+    setToast('กำลังเข้าห้อง ' + n + '…');
+    var wantName = roomName(n);
+    fetch(BASE + '/api/spaces', { cache: 'no-store' })
+      .then(function (r) { return r.ok ? r.json() : []; })
+      .then(function (list) {
+        var found = null;
+        if (Array.isArray(list)) {
+          for (var i = 0; i < list.length; i++) {
+            if (list[i] && list[i].spaceName === wantName && (list[i].peerCount || 0) < QB_MAX_PLAYERS) { found = list[i]; break; }
+          }
+        }
+        if (found) { gotoPlay(found.spaceId); return null; }
+        // สร้างห้องใหม่บนแผนที่ quiz_battle
+        return fetch(BASE + '/api/spaces', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ mapId: mapIdForRoom(n), name: wantName, maxPlayers: QB_MAX_PLAYERS })
+        }).then(function (r) { return r.json(); }).then(function (res) {
+          if (res && res.ok && res.spaceId) { gotoPlay(res.spaceId); }
+          else { setToast((res && res.error) || 'สร้างห้องไม่สำเร็จ'); entering = false; }
+        });
+      })
+      .catch(function () { setToast('เชื่อมต่อเซิร์ฟเวอร์ไม่ได้ ลองอีกครั้ง'); entering = false; });
+  }
+
+  /** อัปเดตจำนวนคนในแต่ละห้องจากรายชื่อ space (poll) */
+  function refreshRoomCounts() {
+    fetch(BASE + '/api/spaces', { cache: 'no-store' })
+      .then(function (r) { return r.ok ? r.json() : []; })
+      .then(function (list) {
+        var counts = {};
+        if (Array.isArray(list)) {
+          list.forEach(function (s) {
+            if (!s || !s.spaceName) return;
+            if (s.spaceName.indexOf(ROOM_NAME_PREFIX) === 0) {
+              var n = parseInt(s.spaceName.slice(ROOM_NAME_PREFIX.length), 10);
+              if (n >= 1 && n <= 10) counts[n] = (s.peerCount || 0);
+            }
+          });
+        }
+        for (var i = 1; i <= 10; i++) {
+          var el = document.getElementById('qb-count-' + i);
+          if (el) el.textContent = (counts[i] || 0) + '/' + QB_MAX_PLAYERS;
+        }
+      })
+      .catch(function () { /* keep last */ });
   }
 
   function getVoiceIconPath(micOn) {
     var imgPath = micOn ? '/Game/img/btn-mic-on.png' : '/Game/img/btn-mic-mute.png';
     return typeof appPath === 'function' ? appPath(imgPath) : imgPath;
   }
-
   function setVoiceButtonIcon(btn, micOn) {
     if (!btn) return;
     var img = btn.querySelector('#btn-voice-icon-img') || btn.querySelector('img');
-    if (img) {
-      img.src = getVoiceIconPath(micOn);
-      img.alt = micOn ? 'ปิดเสียง' : 'เปิดเสียง';
-    }
+    if (img) { img.src = getVoiceIconPath(micOn); img.alt = micOn ? 'ปิดเสียง' : 'เปิดเสียง'; }
     btn.title = micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด';
     btn.setAttribute('aria-label', micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด');
   }
-
   function bindVoiceButton() {
     var btnVoice = document.getElementById('btn-voice');
     if (!btnVoice) return;
@@ -134,11 +178,7 @@
       startBtn.className = 'qb-card-start';
       startBtn.setAttribute('aria-label', 'เริ่มเกมห้อง ' + i);
       startBtn.addEventListener('click', (function (roomNo) {
-        return function (ev) {
-          ev.preventDefault();
-          ev.stopPropagation();
-          startQuizForRoom(roomNo);
-        };
+        return function (ev) { ev.preventDefault(); ev.stopPropagation(); startQuizForRoom(roomNo); };
       })(i));
 
       var startImg = document.createElement('img');
@@ -149,14 +189,15 @@
 
       var countEl = document.createElement('span');
       countEl.className = 'qb-card-count';
-      countEl.textContent = '0/50';
+      countEl.id = 'qb-count-' + i;
+      countEl.textContent = '0/' + QB_MAX_PLAYERS;
 
       card.appendChild(roomImg);
       card.appendChild(startBtn);
       card.appendChild(countEl);
       grid.appendChild(card);
     }
-    setToast('กดปุ่มเริ่มเกมในแต่ละห้องเพื่อเล่น');
+    setToast('กดเริ่มเกมในห้องเพื่อเข้าฉากเดินตอบคำถาม');
   }
 
   function syncMainScale() {
@@ -164,8 +205,6 @@
     if (!mainEl) return;
     var availableW = Math.max(1, mainEl.clientWidth);
     var availableH = Math.max(1, mainEl.clientHeight);
-    // Base layout from image dimensions:
-    // banner 419x151, banner top offset, card 271x351, 5 columns, 2 rows, gaps + toast spacing.
     var baseWidth = (271 * 5) + (18 * 4);
     var baseHeight = 60 + 151 + 12 + (351 * 2) + 14 + 8 + 24;
     var scaleW = availableW / baseWidth;
@@ -179,7 +218,6 @@
     if (!uiEl) return;
     var vw = Math.max(1, window.innerWidth || 0);
     var vh = Math.max(1, window.innerHeight || 0);
-    // Base stage from mock-normal viewport.
     var scale = Math.max(0.34, Math.min(1, Math.min(vw / 1920, vh / 1080)));
     uiEl.style.setProperty('--qb-ui-scale', scale.toFixed(4));
   }
@@ -191,16 +229,12 @@
   applyProfileAvatar();
   buildGrid();
   bindVoiceButton();
+  refreshRoomCounts();
+  setInterval(refreshRoomCounts, 5000);
   syncUiScale();
   syncMainScale();
-  window.addEventListener('resize', function () {
-    syncUiScale();
-    syncMainScale();
-  });
+  window.addEventListener('resize', function () { syncUiScale(); syncMainScale(); });
   window.addEventListener('orientationchange', function () {
-    setTimeout(function () {
-      syncUiScale();
-      syncMainScale();
-    }, 120);
+    setTimeout(function () { syncUiScale(); syncMainScale(); }, 120);
   });
 })();
diff --git a/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-050107 b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-050107
new file mode 100644
index 0000000..7272ccc
--- /dev/null
+++ b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-050107
@@ -0,0 +1,206 @@
+(function () {
+  'use strict';
+
+  var QB_IMAGE = typeof appPath === 'function' ? appPath('/Quiz-Battle/IMAGE') : '/Quiz-Battle/IMAGE';
+  var BASE = typeof appPath === 'function' ? appPath('/Game') : '/Game';
+  var CHAR_KEY = 'gameCharacterId';
+  var LOBBY_IDLE_DOWN_PREFIX = 'jdCharLobbyIdleDown:';
+  var VOICE_STATE_KEY = 'qbVoiceMicOn';
+
+  if (localStorage.getItem('isLoggedIn') !== 'true') {
+    window.location.href = typeof appPath === 'function' ? appPath('/Login/') : '/Login/';
+    return;
+  }
+
+  var grid = document.getElementById('qb-grid');
+  var toast = document.getElementById('qb-toast');
+
+  function pad2(n) {
+    return n < 10 ? '0' + n : String(n);
+  }
+
+  function setToast(msg) {
+    if (toast) toast.textContent = msg || '';
+  }
+
+  function getSelectedCharacterId() {
+    try {
+      return (localStorage.getItem(CHAR_KEY) || '').trim();
+    } catch (e) {
+      return '';
+    }
+  }
+
+  function characterDownUrls(id) {
+    var enc = encodeURIComponent(id);
+    return [
+      BASE + '/img/characters/' + enc + '_down.png',
+      BASE + '/img/characters/' + enc + '_down_0.png'
+    ];
+  }
+
+  function applyProfileAvatar() {
+    var av = document.getElementById('lobby-profile-avatar');
+    if (!av) return;
+    var fallbackAvatar = typeof appPath === 'function' ? appPath('/Main-Menu/char-main.png') : '/Main-Menu/char-main.png';
+
+    var cid = getSelectedCharacterId();
+    if (!cid) {
+      av.onerror = null;
+      av.src = fallbackAvatar;
+      return;
+    }
+
+    // ใช้รูปเดียวกับหน้า Main-Lobby ก่อน (composited idle ที่บันทึกไว้)
+    try {
+      var savedLobbyAvatar = localStorage.getItem(LOBBY_IDLE_DOWN_PREFIX + cid) || '';
+      if (savedLobbyAvatar && savedLobbyAvatar.indexOf('data:image/') === 0) {
+        av.onerror = function () {
+          av.onerror = null;
+          av.src = fallbackAvatar;
+        };
+        av.src = savedLobbyAvatar;
+        return;
+      }
+    } catch (e0) { /* ignore */ }
+
+    var urls = characterDownUrls(cid);
+    var avStep = 0;
+    av.onerror = function () {
+      avStep += 1;
+      if (avStep === 1) av.src = urls[1];
+      else {
+        av.onerror = null;
+        av.src = fallbackAvatar;
+      }
+    };
+    av.src = urls[0];
+  }
+
+  function startQuizForRoom(n) {
+    try {
+      localStorage.setItem('quizBattleRoom', String(n));
+    } catch (e) { /* ignore */ }
+    setToast('เริ่มเกมห้อง ' + n + ' (ต่อระบบจริงในเวอร์ชันถัดไป)');
+  }
+
+  function getVoiceIconPath(micOn) {
+    var imgPath = micOn ? '/Game/img/btn-mic-on.png' : '/Game/img/btn-mic-mute.png';
+    return typeof appPath === 'function' ? appPath(imgPath) : imgPath;
+  }
+
+  function setVoiceButtonIcon(btn, micOn) {
+    if (!btn) return;
+    var img = btn.querySelector('#btn-voice-icon-img') || btn.querySelector('img');
+    if (img) {
+      img.src = getVoiceIconPath(micOn);
+      img.alt = micOn ? 'ปิดเสียง' : 'เปิดเสียง';
+    }
+    btn.title = micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด';
+    btn.setAttribute('aria-label', micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด');
+  }
+
+  function bindVoiceButton() {
+    var btnVoice = document.getElementById('btn-voice');
+    if (!btnVoice) return;
+    var micOn = false;
+    try { micOn = localStorage.getItem(VOICE_STATE_KEY) === '1'; } catch (e) { /* ignore */ }
+    setVoiceButtonIcon(btnVoice, micOn);
+    btnVoice.addEventListener('click', function () {
+      micOn = !micOn;
+      try { localStorage.setItem(VOICE_STATE_KEY, micOn ? '1' : '0'); } catch (e2) { /* ignore */ }
+      setVoiceButtonIcon(btnVoice, micOn);
+    });
+  }
+
+  function buildGrid() {
+    if (!grid) return;
+    grid.innerHTML = '';
+    for (var i = 1; i <= 10; i++) {
+      var card = document.createElement('div');
+      card.className = 'qb-card';
+      card.setAttribute('data-room', String(i));
+      card.setAttribute('role', 'listitem');
+      card.setAttribute('aria-label', 'ห้อง ' + i);
+
+      var roomImg = document.createElement('img');
+      roomImg.className = 'qb-card-room';
+      roomImg.src = QB_IMAGE + '/Room-' + pad2(i) + '.png';
+      roomImg.alt = '';
+      roomImg.decoding = 'async';
+
+      var startBtn = document.createElement('button');
+      startBtn.type = 'button';
+      startBtn.className = 'qb-card-start';
+      startBtn.setAttribute('aria-label', 'เริ่มเกมห้อง ' + i);
+      startBtn.addEventListener('click', (function (roomNo) {
+        return function (ev) {
+          ev.preventDefault();
+          ev.stopPropagation();
+          startQuizForRoom(roomNo);
+        };
+      })(i));
+
+      var startImg = document.createElement('img');
+      startImg.src = QB_IMAGE + '/btn-start-quiz.png';
+      startImg.alt = 'เริ่มเกม';
+      startImg.decoding = 'async';
+      startBtn.appendChild(startImg);
+
+      var countEl = document.createElement('span');
+      countEl.className = 'qb-card-count';
+      countEl.textContent = '0/50';
+
+      card.appendChild(roomImg);
+      card.appendChild(startBtn);
+      card.appendChild(countEl);
+      grid.appendChild(card);
+    }
+    setToast('กดปุ่มเริ่มเกมในแต่ละห้องเพื่อเล่น');
+  }
+
+  function syncMainScale() {
+    var mainEl = document.querySelector('.qb-main');
+    if (!mainEl) return;
+    var availableW = Math.max(1, mainEl.clientWidth);
+    var availableH = Math.max(1, mainEl.clientHeight);
+    // Base layout from image dimensions:
+    // banner 419x151, banner top offset, card 271x351, 5 columns, 2 rows, gaps + toast spacing.
+    var baseWidth = (271 * 5) + (18 * 4);
+    var baseHeight = 60 + 151 + 12 + (351 * 2) + 14 + 8 + 24;
+    var scaleW = availableW / baseWidth;
+    var scaleH = availableH / baseHeight;
+    var scale = Math.max(0.22, Math.min(1, Math.min(scaleW, scaleH)));
+    mainEl.style.setProperty('--qb-main-scale', scale.toFixed(4));
+  }
+
+  function syncUiScale() {
+    var uiEl = document.querySelector('.qb-ui');
+    if (!uiEl) return;
+    var vw = Math.max(1, window.innerWidth || 0);
+    var vh = Math.max(1, window.innerHeight || 0);
+    // Base stage from mock-normal viewport.
+    var scale = Math.max(0.34, Math.min(1, Math.min(vw / 1920, vh / 1080)));
+    uiEl.style.setProperty('--qb-ui-scale', scale.toFixed(4));
+  }
+
+  document.getElementById('btn-back')?.addEventListener('click', function () {
+    window.location.href = typeof appPath === 'function' ? appPath('/Main-Lobby/') : '/Main-Lobby/';
+  });
+
+  applyProfileAvatar();
+  buildGrid();
+  bindVoiceButton();
+  syncUiScale();
+  syncMainScale();
+  window.addEventListener('resize', function () {
+    syncUiScale();
+    syncMainScale();
+  });
+  window.addEventListener('orientationchange', function () {
+    setTimeout(function () {
+      syncUiScale();
+      syncMainScale();
+    }, 120);
+  });
+})();
diff --git a/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-060954 b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-060954
new file mode 100644
index 0000000..668d8b0
--- /dev/null
+++ b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-060954
@@ -0,0 +1,497 @@
+(function () {
+  'use strict';
+
+  var QB_IMAGE = typeof appPath === 'function' ? appPath('/Quiz-Battle/IMAGE') : '/Quiz-Battle/IMAGE';
+  var BASE = typeof appPath === 'function' ? appPath('/Game') : '/Game';
+  var CHAR_KEY = 'gameCharacterId';
+  var LOBBY_IDLE_DOWN_PREFIX = 'jdCharLobbyIdleDown:';
+  var VOICE_STATE_KEY = 'qbVoiceMicOn';
+
+  if (localStorage.getItem('isLoggedIn') !== 'true') {
+    window.location.href = typeof appPath === 'function' ? appPath('/Login/') : '/Login/';
+    return;
+  }
+
+  var grid = document.getElementById('qb-grid');
+  var toast = document.getElementById('qb-toast');
+
+  function pad2(n) {
+    return n < 10 ? '0' + n : String(n);
+  }
+
+  function setToast(msg) {
+    if (toast) toast.textContent = msg || '';
+  }
+
+  function getSelectedCharacterId() {
+    try {
+      return (localStorage.getItem(CHAR_KEY) || '').trim();
+    } catch (e) {
+      return '';
+    }
+  }
+
+  function characterDownUrls(id) {
+    var enc = encodeURIComponent(id);
+    return [
+      BASE + '/img/characters/' + enc + '_down.png',
+      BASE + '/img/characters/' + enc + '_down_0.png'
+    ];
+  }
+
+  function applyProfileAvatar() {
+    var av = document.getElementById('lobby-profile-avatar');
+    if (!av) return;
+    var fallbackAvatar = typeof appPath === 'function' ? appPath('/Main-Menu/char-main.png') : '/Main-Menu/char-main.png';
+
+    var cid = getSelectedCharacterId();
+    if (!cid) {
+      av.onerror = null;
+      av.src = fallbackAvatar;
+      return;
+    }
+
+    // ใช้รูปเดียวกับหน้า Main-Lobby ก่อน (composited idle ที่บันทึกไว้)
+    try {
+      var savedLobbyAvatar = localStorage.getItem(LOBBY_IDLE_DOWN_PREFIX + cid) || '';
+      if (savedLobbyAvatar && savedLobbyAvatar.indexOf('data:image/') === 0) {
+        av.onerror = function () {
+          av.onerror = null;
+          av.src = fallbackAvatar;
+        };
+        av.src = savedLobbyAvatar;
+        return;
+      }
+    } catch (e0) { /* ignore */ }
+
+    var urls = characterDownUrls(cid);
+    var avStep = 0;
+    av.onerror = function () {
+      avStep += 1;
+      if (avStep === 1) av.src = urls[1];
+      else {
+        av.onerror = null;
+        av.src = fallbackAvatar;
+      }
+    };
+    av.src = urls[0];
+  }
+
+  /* ===================== Quiz Battle realtime engine ===================== */
+  var ANSWER_COLORS = ['c0', 'c1', 'c2', 'c3'];
+  var ANSWER_ICONS = ['▲', '◆', '●', '■'];
+
+  function getPlayerName() {
+    var keys = ['gameNickname', 'nickname', 'displayName', 'playerName', 'userName'];
+    for (var i = 0; i < keys.length; i++) {
+      try {
+        var v = (localStorage.getItem(keys[i]) || '').trim();
+        if (v) return v.slice(0, 24);
+      } catch (e) { /* ignore */ }
+    }
+    return 'ผู้เล่น' + Math.floor(1000 + Math.random() * 9000);
+  }
+
+  var socket = null;
+  var myId = null;
+  var current = { room: 0, status: 'lobby', myScore: 0, total: 0, picked: -1, timerRAF: 0 };
+
+  var elPlay = document.getElementById('qb-play');
+  var elBody = document.getElementById('qb-play-body');
+  var elRoomPill = document.getElementById('qb-play-room');
+  var elCountB = document.getElementById('qb-play-count');
+  var elScoreWrap = document.getElementById('qb-play-score');
+  var elScoreVal = document.getElementById('qb-play-score-val');
+
+  function esc(s) {
+    return String(s == null ? '' : s).replace(/[&<>"']/g, function (c) {
+      return ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' })[c];
+    });
+  }
+
+  function openPlay(roomNo) {
+    current.room = roomNo;
+    elRoomPill.textContent = 'ห้อง ' + roomNo;
+    elPlay.classList.add('is-open');
+    elPlay.setAttribute('aria-hidden', 'false');
+  }
+  function closePlay() {
+    stopTimer();
+    elPlay.classList.remove('is-open');
+    elPlay.setAttribute('aria-hidden', 'true');
+    elBody.innerHTML = '';
+    current.room = 0;
+    current.status = 'lobby';
+  }
+  function setScore(v) {
+    current.myScore = v;
+    elScoreWrap.hidden = false;
+    elScoreVal.textContent = String(v);
+  }
+  function setCount(c) { elCountB.textContent = String(c); }
+
+  function stopTimer() {
+    if (current.timerRAF) { cancelAnimationFrame(current.timerRAF); current.timerRAF = 0; }
+  }
+  function runTimer(fillEl, endsAt, durationMs) {
+    stopTimer();
+    function tick() {
+      var remain = Math.max(0, endsAt - Date.now());
+      var frac = durationMs > 0 ? remain / durationMs : 0;
+      fillEl.style.transform = 'scaleX(' + frac.toFixed(4) + ')';
+      if (remain > 0) current.timerRAF = requestAnimationFrame(tick);
+    }
+    tick();
+  }
+
+  // ---- screen renderers ----
+  function renderLobby(state) {
+    current.status = 'lobby';
+    stopTimer();
+    elScoreWrap.hidden = true;
+    var players = state.players || [];
+    setCount(players.length);
+    var chips = players.map(function (p) {
+      return '<span class="qb-player-chip' + (p.id === myId ? ' me' : '') + '">' + esc(p.name) + '</span>';
+    }).join('');
+    elBody.innerHTML =
+      '<div class="qb-play-screen is-active">' +
+        '<div class="qb-lobby-title">ห้อง ' + current.room + '</div>' +
+        '<div class="qb-lobby-sub">รอผู้เล่น… กด “เริ่มเกม” เพื่อนับถอยหลังเริ่มพร้อมกัน (สูงสุด 50 คน)</div>' +
+        '<div class="qb-players" id="qb-players">' + chips + '</div>' +
+        '<button type="button" class="qb-btn" id="qb-start-btn">เริ่มเกม</button>' +
+        '<div class="qb-answered-info" id="qb-lobby-msg"></div>' +
+      '</div>';
+    document.getElementById('qb-start-btn').addEventListener('click', function () {
+      var btn = this;
+      btn.disabled = true;
+      socket.emit('qb-start', function (res) {
+        if (!res || !res.ok) {
+          btn.disabled = false;
+          document.getElementById('qb-lobby-msg').textContent = (res && res.error) || 'เริ่มไม่สำเร็จ';
+        }
+      });
+    });
+  }
+
+  function renderCountdown(seconds) {
+    current.status = 'countdown';
+    stopTimer();
+    elBody.innerHTML =
+      '<div class="qb-play-screen is-active">' +
+        '<div class="qb-countdown-label">เกมกำลังจะเริ่ม…</div>' +
+        '<div class="qb-countdown-num" id="qb-cd-num">' + seconds + '</div>' +
+      '</div>';
+  }
+
+  function renderQuestion(q) {
+    current.status = 'question';
+    current.picked = -1;
+    var n = q.choices.length;
+    var answers = q.choices.map(function (c, i) {
+      return '<button type="button" class="qb-answer ' + ANSWER_COLORS[i] + '" data-i="' + i + '">' +
+        '<span class="qb-answer-icon">' + ANSWER_ICONS[i] + '</span>' +
+        '<span class="qb-answer-text">' + esc(c) + '</span>' +
+      '</button>';
+    }).join('');
+    elBody.innerHTML =
+      '<div class="qb-play-screen is-active">' +
+        '<div class="qb-qmeta">ข้อ ' + (q.index + 1) + ' / ' + q.total + '</div>' +
+        '<div class="qb-timebar"><div class="qb-timebar-fill" id="qb-timefill"></div></div>' +
+        '<div class="qb-question-text">' + esc(q.text) + '</div>' +
+        '<div class="qb-answers" data-count="' + n + '" id="qb-answers">' + answers + '</div>' +
+        '<div class="qb-answered-info" id="qb-answered">รอผู้เล่นตอบ…</div>' +
+      '</div>';
+    runTimer(document.getElementById('qb-timefill'), q.endsAt, q.durationMs);
+    var btns = elBody.querySelectorAll('.qb-answer');
+    btns.forEach(function (b) {
+      b.addEventListener('click', function () {
+        if (current.picked >= 0) return;
+        var i = parseInt(b.getAttribute('data-i'), 10);
+        current.picked = i;
+        btns.forEach(function (x) { x.disabled = true; });
+        b.classList.add('is-picked');
+        socket.emit('qb-answer', { choiceIndex: i }, function () {});
+      });
+    });
+  }
+
+  function renderReveal(data) {
+    current.status = 'reveal';
+    stopTimer();
+    var me = (data.results || []).filter(function (r) { return r.id === myId; })[0];
+    if (me) setScore(me.score);
+    // mark answer tiles
+    var btns = elBody.querySelectorAll('.qb-answer');
+    if (btns.length) {
+      btns.forEach(function (b) {
+        var i = parseInt(b.getAttribute('data-i'), 10);
+        b.disabled = true;
+        if (i === data.correctIndex) b.classList.add('is-correct');
+        else if (i === current.picked) b.classList.add('is-wrong');
+        else b.classList.add('is-dimmed');
+      });
+    }
+    var fb = '';
+    if (me) {
+      fb = me.correct
+        ? '<div class="qb-feedback ok">ถูกต้อง! ✓</div><div class="qb-delta">+' + me.delta + ' คะแนน</div>'
+        : '<div class="qb-feedback no">' + (me.choice >= 0 ? 'ยังไม่ถูก ✗' : 'หมดเวลา ⏱') + '</div>';
+    }
+    var board = (data.leaderboard || []).slice(0, 5).map(function (r) {
+      return '<div class="qb-board-row' + (r.id === myId ? ' me' : '') + (r.rank === 1 ? ' top1' : '') + '">' +
+        '<span class="qb-board-rank">' + r.rank + '</span>' +
+        '<span class="qb-board-name">' + esc(r.name) + '</span>' +
+        '<span class="qb-board-score">' + r.score + '</span>' +
+      '</div>';
+    }).join('');
+    var existing = elBody.querySelector('.qb-play-screen');
+    var html =
+      '<div class="qb-play-screen is-active">' +
+        fb +
+        '<div class="qb-board"><div class="qb-board-title">อันดับ</div>' + board + '</div>' +
+        '<div class="qb-answered-info">' + (data.isLast ? 'กำลังสรุปผล…' : 'ข้อต่อไปใน ' + Math.round((data.nextInMs || 0) / 1000) + ' วิ') + '</div>' +
+      '</div>';
+    if (existing) existing.outerHTML = html; else elBody.innerHTML = html;
+  }
+
+  function renderFinal(data) {
+    current.status = 'ended';
+    stopTimer();
+    elScoreWrap.hidden = true;
+    var board = (data.leaderboard || []).map(function (r) {
+      return '<div class="qb-board-row' + (r.id === myId ? ' me' : '') + (r.rank === 1 ? ' top1' : '') + '">' +
+        '<span class="qb-board-rank">' + (r.rank === 1 ? '🏆' : r.rank) + '</span>' +
+        '<span class="qb-board-name">' + esc(r.name) + '</span>' +
+        '<span class="qb-board-score">' + r.score + '</span>' +
+      '</div>';
+    }).join('');
+    var mine = (data.leaderboard || []).filter(function (r) { return r.id === myId; })[0];
+    elBody.innerHTML =
+      '<div class="qb-play-screen is-active">' +
+        '<div class="qb-lobby-title">จบเกม! 🎉</div>' +
+        (mine ? '<div class="qb-lobby-sub">คุณได้อันดับ ' + mine.rank + ' · ' + mine.score + ' คะแนน</div>' : '') +
+        '<div class="qb-board"><div class="qb-board-title">อันดับสุดท้าย</div>' + board + '</div>' +
+        '<div class="qb-answered-info">กำลังกลับสู่ห้องรอ… กดเริ่มใหม่ได้อีกครั้ง</div>' +
+      '</div>';
+  }
+
+  function bindSocketHandlers() {
+    socket.on('connect', function () {
+      myId = socket.id;
+      socket.emit('qb-watch-counts', function (res) {
+        if (res && res.rooms) updateCounts(res.rooms);
+      });
+    });
+    socket.on('qb-counts', function (data) { if (data && data.rooms) updateCounts(data.rooms); });
+    socket.on('qb-room-state', function (data) {
+      setCount((data.players || []).length);
+      if (current.status === 'lobby' && current.room === data.n) renderLobby(data);
+    });
+    socket.on('qb-countdown', function (data) {
+      current.total = data.totalQuestions || 0;
+      var endsAt = data.endsAt;
+      var sec = Math.max(1, Math.ceil((endsAt - Date.now()) / 1000));
+      renderCountdown(sec);
+      var iv = setInterval(function () {
+        var s = Math.ceil((endsAt - Date.now()) / 1000);
+        var numEl = document.getElementById('qb-cd-num');
+        if (s <= 0 || !numEl) { clearInterval(iv); return; }
+        numEl.textContent = s;
+      }, 250);
+    });
+    socket.on('qb-question', function (q) { renderQuestion(q); });
+    socket.on('qb-answered-count', function (d) {
+      var el = document.getElementById('qb-answered');
+      if (el) el.textContent = 'ตอบแล้ว ' + d.answered + ' / ' + d.total + ' คน';
+    });
+    socket.on('qb-reveal', function (d) { renderReveal(d); });
+    socket.on('qb-ended', function (d) { renderFinal(d); });
+    socket.on('qb-reset', function () {
+      // server reset room → ขอ state ใหม่ผ่าน re-join เบา ๆ
+      if (current.room) {
+        socket.emit('qb-join', { room: current.room, name: getPlayerName(), characterId: getSelectedCharacterId() }, function (res) {
+          if (res && res.ok) renderLobby({ n: res.n, players: res.players });
+        });
+      }
+    });
+    socket.on('disconnect', function () {
+      if (current.room) {
+        var el = document.getElementById('qb-lobby-msg') || document.getElementById('qb-answered');
+        if (el) el.textContent = 'การเชื่อมต่อหลุด — กำลังเชื่อมต่อใหม่…';
+      }
+    });
+  }
+
+  function updateCounts(rooms) {
+    rooms.forEach(function (r) {
+      var el = document.getElementById('qb-count-' + r.n);
+      if (el) el.textContent = r.count + '/50';
+    });
+  }
+
+  function applyJoinSnapshot(res) {
+    setCount((res.players || []).length);
+    if (res.status === 'lobby') {
+      renderLobby({ n: res.n, players: res.players });
+    } else if (res.status === 'countdown') {
+      current.total = res.totalQuestions || 0;
+      renderCountdown(3);
+    } else if (res.status === 'question' && res.question) {
+      renderQuestion(res.question);
+    } else {
+      renderLobby({ n: res.n, players: res.players || [] });
+    }
+  }
+
+  function startQuizForRoom(n) {
+    if (!socket || !socket.connected) {
+      setToast('กำลังเชื่อมต่อเซิร์ฟเวอร์… ลองอีกครั้ง');
+      return;
+    }
+    socket.emit('qb-join', { room: n, name: getPlayerName(), characterId: getSelectedCharacterId() }, function (res) {
+      if (!res || !res.ok) {
+        setToast((res && res.error) || 'เข้าห้องไม่สำเร็จ');
+        return;
+      }
+      openPlay(n);
+      applyJoinSnapshot(res);
+    });
+  }
+
+  function initSocket() {
+    if (typeof io !== 'function') {
+      setToast('โหลด socket.io ไม่สำเร็จ — รีเฟรชหน้าอีกครั้ง');
+      return;
+    }
+    socket = io({ path: BASE + '/socket.io', transports: ['websocket', 'polling'] });
+    bindSocketHandlers();
+  }
+
+  document.getElementById('qb-play-leave').addEventListener('click', function () {
+    if (socket) socket.emit('qb-leave', function () {});
+    closePlay();
+  });
+
+  function getVoiceIconPath(micOn) {
+    var imgPath = micOn ? '/Game/img/btn-mic-on.png' : '/Game/img/btn-mic-mute.png';
+    return typeof appPath === 'function' ? appPath(imgPath) : imgPath;
+  }
+
+  function setVoiceButtonIcon(btn, micOn) {
+    if (!btn) return;
+    var img = btn.querySelector('#btn-voice-icon-img') || btn.querySelector('img');
+    if (img) {
+      img.src = getVoiceIconPath(micOn);
+      img.alt = micOn ? 'ปิดเสียง' : 'เปิดเสียง';
+    }
+    btn.title = micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด';
+    btn.setAttribute('aria-label', micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด');
+  }
+
+  function bindVoiceButton() {
+    var btnVoice = document.getElementById('btn-voice');
+    if (!btnVoice) return;
+    var micOn = false;
+    try { micOn = localStorage.getItem(VOICE_STATE_KEY) === '1'; } catch (e) { /* ignore */ }
+    setVoiceButtonIcon(btnVoice, micOn);
+    btnVoice.addEventListener('click', function () {
+      micOn = !micOn;
+      try { localStorage.setItem(VOICE_STATE_KEY, micOn ? '1' : '0'); } catch (e2) { /* ignore */ }
+      setVoiceButtonIcon(btnVoice, micOn);
+    });
+  }
+
+  function buildGrid() {
+    if (!grid) return;
+    grid.innerHTML = '';
+    for (var i = 1; i <= 10; i++) {
+      var card = document.createElement('div');
+      card.className = 'qb-card';
+      card.setAttribute('data-room', String(i));
+      card.setAttribute('role', 'listitem');
+      card.setAttribute('aria-label', 'ห้อง ' + i);
+
+      var roomImg = document.createElement('img');
+      roomImg.className = 'qb-card-room';
+      roomImg.src = QB_IMAGE + '/Room-' + pad2(i) + '.png';
+      roomImg.alt = '';
+      roomImg.decoding = 'async';
+
+      var startBtn = document.createElement('button');
+      startBtn.type = 'button';
+      startBtn.className = 'qb-card-start';
+      startBtn.setAttribute('aria-label', 'เริ่มเกมห้อง ' + i);
+      startBtn.addEventListener('click', (function (roomNo) {
+        return function (ev) {
+          ev.preventDefault();
+          ev.stopPropagation();
+          startQuizForRoom(roomNo);
+        };
+      })(i));
+
+      var startImg = document.createElement('img');
+      startImg.src = QB_IMAGE + '/btn-start-quiz.png';
+      startImg.alt = 'เริ่มเกม';
+      startImg.decoding = 'async';
+      startBtn.appendChild(startImg);
+
+      var countEl = document.createElement('span');
+      countEl.className = 'qb-card-count';
+      countEl.id = 'qb-count-' + i;
+      countEl.textContent = '0/50';
+
+      card.appendChild(roomImg);
+      card.appendChild(startBtn);
+      card.appendChild(countEl);
+      grid.appendChild(card);
+    }
+    setToast('กดปุ่มเริ่มเกมในแต่ละห้องเพื่อเล่น');
+  }
+
+  function syncMainScale() {
+    var mainEl = document.querySelector('.qb-main');
+    if (!mainEl) return;
+    var availableW = Math.max(1, mainEl.clientWidth);
+    var availableH = Math.max(1, mainEl.clientHeight);
+    // Base layout from image dimensions:
+    // banner 419x151, banner top offset, card 271x351, 5 columns, 2 rows, gaps + toast spacing.
+    var baseWidth = (271 * 5) + (18 * 4);
+    var baseHeight = 60 + 151 + 12 + (351 * 2) + 14 + 8 + 24;
+    var scaleW = availableW / baseWidth;
+    var scaleH = availableH / baseHeight;
+    var scale = Math.max(0.22, Math.min(1, Math.min(scaleW, scaleH)));
+    mainEl.style.setProperty('--qb-main-scale', scale.toFixed(4));
+  }
+
+  function syncUiScale() {
+    var uiEl = document.querySelector('.qb-ui');
+    if (!uiEl) return;
+    var vw = Math.max(1, window.innerWidth || 0);
+    var vh = Math.max(1, window.innerHeight || 0);
+    // Base stage from mock-normal viewport.
+    var scale = Math.max(0.34, Math.min(1, Math.min(vw / 1920, vh / 1080)));
+    uiEl.style.setProperty('--qb-ui-scale', scale.toFixed(4));
+  }
+
+  document.getElementById('btn-back')?.addEventListener('click', function () {
+    window.location.href = typeof appPath === 'function' ? appPath('/Main-Lobby/') : '/Main-Lobby/';
+  });
+
+  applyProfileAvatar();
+  buildGrid();
+  bindVoiceButton();
+  initSocket();
+  syncUiScale();
+  syncMainScale();
+  window.addEventListener('resize', function () {
+    syncUiScale();
+    syncMainScale();
+  });
+  window.addEventListener('orientationchange', function () {
+    setTimeout(function () {
+      syncUiScale();
+      syncMainScale();
+    }, 120);
+  });
+})();
diff --git a/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-101436 b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-101436
new file mode 100644
index 0000000..7a4f52e
--- /dev/null
+++ b/www/html/Quiz-Battle/quiz-battle.js.bak-20260605-101436
@@ -0,0 +1,240 @@
+(function () {
+  'use strict';
+
+  var QB_IMAGE = typeof appPath === 'function' ? appPath('/Quiz-Battle/IMAGE') : '/Quiz-Battle/IMAGE';
+  var BASE = typeof appPath === 'function' ? appPath('/Game') : '/Game';
+  var CHAR_KEY = 'gameCharacterId';
+  var LOBBY_IDLE_DOWN_PREFIX = 'jdCharLobbyIdleDown:';
+  var VOICE_STATE_KEY = 'qbVoiceMicOn';
+
+  /* ฉากเดินตอบแบบ ZEP — แต่ละห้องในเมนู = 1 space บนแผนที่ quiz_battle (เดิน + โดมคำถาม) */
+  var QUIZ_BATTLE_MAP_ID = 'mnq9bl0e';   // แผนที่ quiz_battle (เปลี่ยนเป็นฉาก forest ใหม่ได้ภายหลัง)
+  var QB_MAX_PLAYERS = 50;
+  var ROOM_NAME_PREFIX = 'Quiz Battle ห้อง ';
+
+  if (localStorage.getItem('isLoggedIn') !== 'true') {
+    window.location.href = typeof appPath === 'function' ? appPath('/Login/') : '/Login/';
+    return;
+  }
+
+  var grid = document.getElementById('qb-grid');
+  var toast = document.getElementById('qb-toast');
+
+  function pad2(n) { return n < 10 ? '0' + n : String(n); }
+  function setToast(msg) { if (toast) toast.textContent = msg || ''; }
+
+  function getSelectedCharacterId() {
+    try { return (localStorage.getItem(CHAR_KEY) || '').trim(); } catch (e) { return ''; }
+  }
+
+  function getPlayerName() {
+    var keys = ['gameNickname', 'nickname', 'displayName', 'playerName', 'userName'];
+    for (var i = 0; i < keys.length; i++) {
+      try { var v = (localStorage.getItem(keys[i]) || '').trim(); if (v) return v.slice(0, 24); } catch (e) { /* ignore */ }
+    }
+    return 'ผู้เล่น' + Math.floor(1000 + Math.random() * 9000);
+  }
+
+  function characterDownUrls(id) {
+    var enc = encodeURIComponent(id);
+    return [BASE + '/img/characters/' + enc + '_down.png', BASE + '/img/characters/' + enc + '_down_0.png'];
+  }
+
+  function applyProfileAvatar() {
+    var av = document.getElementById('lobby-profile-avatar');
+    if (!av) return;
+    var fallbackAvatar = typeof appPath === 'function' ? appPath('/Main-Menu/char-main.png') : '/Main-Menu/char-main.png';
+    var cid = getSelectedCharacterId();
+    if (!cid) { av.onerror = null; av.src = fallbackAvatar; return; }
+    try {
+      var savedLobbyAvatar = localStorage.getItem(LOBBY_IDLE_DOWN_PREFIX + cid) || '';
+      if (savedLobbyAvatar && savedLobbyAvatar.indexOf('data:image/') === 0) {
+        av.onerror = function () { av.onerror = null; av.src = fallbackAvatar; };
+        av.src = savedLobbyAvatar;
+        return;
+      }
+    } catch (e0) { /* ignore */ }
+    var urls = characterDownUrls(cid);
+    var avStep = 0;
+    av.onerror = function () {
+      avStep += 1;
+      if (avStep === 1) av.src = urls[1];
+      else { av.onerror = null; av.src = fallbackAvatar; }
+    };
+    av.src = urls[0];
+  }
+
+  /* ===================== เข้าฉากเดิน (ZEP walkable) ===================== */
+  var entering = false;
+
+  function roomName(n) { return ROOM_NAME_PREFIX + n; }
+
+  function gotoPlay(spaceId) {
+    var nick = getPlayerName();
+    var url = BASE + '/play.html?space=' + encodeURIComponent(spaceId) +
+      '&map=' + encodeURIComponent(QUIZ_BATTLE_MAP_ID) +
+      '&nick=' + encodeURIComponent(nick);
+    try { localStorage.setItem('lastCreatedSpaceName', roomName(currentRoomNo)); } catch (e) { /* ignore */ }
+    window.location.href = url;
+  }
+
+  var currentRoomNo = 0;
+
+  /** หา space สาธารณะของห้องนี้ที่ยังมีคนอยู่ ถ้าไม่มีให้สร้างใหม่ แล้วเข้าเล่น */
+  function startQuizForRoom(n) {
+    if (entering) return;
+    entering = true;
+    currentRoomNo = n;
+    setToast('กำลังเข้าห้อง ' + n + '…');
+    var wantName = roomName(n);
+    fetch(BASE + '/api/spaces', { cache: 'no-store' })
+      .then(function (r) { return r.ok ? r.json() : []; })
+      .then(function (list) {
+        var found = null;
+        if (Array.isArray(list)) {
+          for (var i = 0; i < list.length; i++) {
+            if (list[i] && list[i].spaceName === wantName && (list[i].peerCount || 0) < QB_MAX_PLAYERS) { found = list[i]; break; }
+          }
+        }
+        if (found) { gotoPlay(found.spaceId); return null; }
+        // สร้างห้องใหม่บนแผนที่ quiz_battle
+        return fetch(BASE + '/api/spaces', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ mapId: QUIZ_BATTLE_MAP_ID, name: wantName, maxPlayers: QB_MAX_PLAYERS })
+        }).then(function (r) { return r.json(); }).then(function (res) {
+          if (res && res.ok && res.spaceId) { gotoPlay(res.spaceId); }
+          else { setToast((res && res.error) || 'สร้างห้องไม่สำเร็จ'); entering = false; }
+        });
+      })
+      .catch(function () { setToast('เชื่อมต่อเซิร์ฟเวอร์ไม่ได้ ลองอีกครั้ง'); entering = false; });
+  }
+
+  /** อัปเดตจำนวนคนในแต่ละห้องจากรายชื่อ space (poll) */
+  function refreshRoomCounts() {
+    fetch(BASE + '/api/spaces', { cache: 'no-store' })
+      .then(function (r) { return r.ok ? r.json() : []; })
+      .then(function (list) {
+        var counts = {};
+        if (Array.isArray(list)) {
+          list.forEach(function (s) {
+            if (!s || !s.spaceName) return;
+            if (s.spaceName.indexOf(ROOM_NAME_PREFIX) === 0) {
+              var n = parseInt(s.spaceName.slice(ROOM_NAME_PREFIX.length), 10);
+              if (n >= 1 && n <= 10) counts[n] = (s.peerCount || 0);
+            }
+          });
+        }
+        for (var i = 1; i <= 10; i++) {
+          var el = document.getElementById('qb-count-' + i);
+          if (el) el.textContent = (counts[i] || 0) + '/' + QB_MAX_PLAYERS;
+        }
+      })
+      .catch(function () { /* keep last */ });
+  }
+
+  function getVoiceIconPath(micOn) {
+    var imgPath = micOn ? '/Game/img/btn-mic-on.png' : '/Game/img/btn-mic-mute.png';
+    return typeof appPath === 'function' ? appPath(imgPath) : imgPath;
+  }
+  function setVoiceButtonIcon(btn, micOn) {
+    if (!btn) return;
+    var img = btn.querySelector('#btn-voice-icon-img') || btn.querySelector('img');
+    if (img) { img.src = getVoiceIconPath(micOn); img.alt = micOn ? 'ปิดเสียง' : 'เปิดเสียง'; }
+    btn.title = micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด';
+    btn.setAttribute('aria-label', micOn ? 'ปิดเสียงพูด' : 'เปิดเสียงพูด');
+  }
+  function bindVoiceButton() {
+    var btnVoice = document.getElementById('btn-voice');
+    if (!btnVoice) return;
+    var micOn = false;
+    try { micOn = localStorage.getItem(VOICE_STATE_KEY) === '1'; } catch (e) { /* ignore */ }
+    setVoiceButtonIcon(btnVoice, micOn);
+    btnVoice.addEventListener('click', function () {
+      micOn = !micOn;
+      try { localStorage.setItem(VOICE_STATE_KEY, micOn ? '1' : '0'); } catch (e2) { /* ignore */ }
+      setVoiceButtonIcon(btnVoice, micOn);
+    });
+  }
+
+  function buildGrid() {
+    if (!grid) return;
+    grid.innerHTML = '';
+    for (var i = 1; i <= 10; i++) {
+      var card = document.createElement('div');
+      card.className = 'qb-card';
+      card.setAttribute('data-room', String(i));
+      card.setAttribute('role', 'listitem');
+      card.setAttribute('aria-label', 'ห้อง ' + i);
+
+      var roomImg = document.createElement('img');
+      roomImg.className = 'qb-card-room';
+      roomImg.src = QB_IMAGE + '/Room-' + pad2(i) + '.png';
+      roomImg.alt = '';
+      roomImg.decoding = 'async';
+
+      var startBtn = document.createElement('button');
+      startBtn.type = 'button';
+      startBtn.className = 'qb-card-start';
+      startBtn.setAttribute('aria-label', 'เริ่มเกมห้อง ' + i);
+      startBtn.addEventListener('click', (function (roomNo) {
+        return function (ev) { ev.preventDefault(); ev.stopPropagation(); startQuizForRoom(roomNo); };
+      })(i));
+
+      var startImg = document.createElement('img');
+      startImg.src = QB_IMAGE + '/btn-start-quiz.png';
+      startImg.alt = 'เริ่มเกม';
+      startImg.decoding = 'async';
+      startBtn.appendChild(startImg);
+
+      var countEl = document.createElement('span');
+      countEl.className = 'qb-card-count';
+      countEl.id = 'qb-count-' + i;
+      countEl.textContent = '0/' + QB_MAX_PLAYERS;
+
+      card.appendChild(roomImg);
+      card.appendChild(startBtn);
+      card.appendChild(countEl);
+      grid.appendChild(card);
+    }
+    setToast('กดเริ่มเกมในห้องเพื่อเข้าฉากเดินตอบคำถาม');
+  }
+
+  function syncMainScale() {
+    var mainEl = document.querySelector('.qb-main');
+    if (!mainEl) return;
+    var availableW = Math.max(1, mainEl.clientWidth);
+    var availableH = Math.max(1, mainEl.clientHeight);
+    var baseWidth = (271 * 5) + (18 * 4);
+    var baseHeight = 60 + 151 + 12 + (351 * 2) + 14 + 8 + 24;
+    var scaleW = availableW / baseWidth;
+    var scaleH = availableH / baseHeight;
+    var scale = Math.max(0.22, Math.min(1, Math.min(scaleW, scaleH)));
+    mainEl.style.setProperty('--qb-main-scale', scale.toFixed(4));
+  }
+
+  function syncUiScale() {
+    var uiEl = document.querySelector('.qb-ui');
+    if (!uiEl) return;
+    var vw = Math.max(1, window.innerWidth || 0);
+    var vh = Math.max(1, window.innerHeight || 0);
+    var scale = Math.max(0.34, Math.min(1, Math.min(vw / 1920, vh / 1080)));
+    uiEl.style.setProperty('--qb-ui-scale', scale.toFixed(4));
+  }
+
+  document.getElementById('btn-back')?.addEventListener('click', function () {
+    window.location.href = typeof appPath === 'function' ? appPath('/Main-Lobby/') : '/Main-Lobby/';
+  });
+
+  applyProfileAvatar();
+  buildGrid();
+  bindVoiceButton();
+  refreshRoomCounts();
+  setInterval(refreshRoomCounts, 5000);
+  syncUiScale();
+  syncMainScale();
+  window.addEventListener('resize', function () { syncUiScale(); syncMainScale(); });
+  window.addEventListener('orientationchange', function () {
+    setTimeout(function () { syncUiScale(); syncMainScale(); }, 120);
+  });
+})();
diff --git a/www/html/Quiz-Battle/style.css b/www/html/Quiz-Battle/style.css
index 4f6c675..f1d0804 100644
--- a/www/html/Quiz-Battle/style.css
+++ b/www/html/Quiz-Battle/style.css
@@ -378,6 +378,222 @@ body {
   -webkit-user-drag: none;
 }
 
+/* ============================================================
+   Quiz Battle play overlay (Kahoot/ZEP-style) — จอเล่นจริง 50 คน
+   ============================================================ */
+.qb-play {
+  position: fixed;
+  inset: 0;
+  z-index: 50;
+  display: none;
+  flex-direction: column;
+  background:
+    radial-gradient(ellipse at 50% 0%, rgba(37, 99, 235, 0.28) 0%, transparent 60%),
+    linear-gradient(180deg, #0b1024 0%, #060912 100%);
+  color: #fff;
+  font-family: 'Kanit', 'Sarabun', system-ui, sans-serif;
+  padding: max(14px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
+           max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
+}
+.qb-play.is-open { display: flex; }
+
+/* แถบหัว: ห้อง / จำนวนผู้เล่น / คะแนนเรา */
+.qb-play-top {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  flex: 0 0 auto;
+}
+.qb-play-pill {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 16px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.08);
+  border: 1px solid rgba(255, 255, 255, 0.14);
+  font-size: clamp(14px, 2.2vw, 20px);
+  font-weight: 600;
+  white-space: nowrap;
+}
+.qb-play-pill b { color: #57efff; }
+.qb-play-leave {
+  border: none;
+  background: rgba(239, 68, 68, 0.18);
+  border: 1px solid rgba(239, 68, 68, 0.4);
+  color: #fecaca;
+  border-radius: 999px;
+  padding: 8px 16px;
+  font: inherit;
+  font-weight: 600;
+  cursor: pointer;
+}
+.qb-play-leave:hover { background: rgba(239, 68, 68, 0.3); }
+
+/* body กลางจอ */
+.qb-play-body {
+  flex: 1;
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: clamp(14px, 2.5vh, 28px);
+  text-align: center;
+}
+.qb-play-screen { width: 100%; max-width: 1100px; display: none; flex-direction: column; align-items: center; gap: clamp(12px, 2.4vh, 26px); }
+.qb-play-screen.is-active { display: flex; }
+
+/* timer bar */
+.qb-timebar {
+  width: min(100%, 760px);
+  height: 14px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.12);
+  overflow: hidden;
+}
+.qb-timebar-fill {
+  height: 100%;
+  width: 100%;
+  border-radius: 999px;
+  background: linear-gradient(90deg, #34d399, #fbbf24, #ef4444);
+  transform-origin: left center;
+  transition: transform 0.2s linear;
+}
+
+/* คำถาม */
+.qb-qmeta { font-size: clamp(13px, 2vw, 18px); color: rgba(255,255,255,0.7); font-weight: 600; }
+.qb-question-text {
+  font-size: clamp(22px, 4.2vw, 44px);
+  font-weight: 700;
+  line-height: 1.25;
+  padding: 18px 22px;
+  border-radius: 18px;
+  background: rgba(255, 255, 255, 0.06);
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  max-width: 900px;
+}
+.qb-answers {
+  width: 100%;
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: clamp(10px, 1.8vw, 18px);
+}
+.qb-answers[data-count="3"] .qb-answer:last-child { grid-column: 1 / -1; }
+.qb-answer {
+  position: relative;
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  min-height: clamp(64px, 12vh, 110px);
+  padding: 14px 20px;
+  border: none;
+  border-radius: 16px;
+  color: #fff;
+  font: inherit;
+  font-size: clamp(16px, 2.6vw, 26px);
+  font-weight: 600;
+  text-align: left;
+  cursor: pointer;
+  transition: transform 0.1s ease, filter 0.1s ease, opacity 0.2s ease;
+  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.25), 0 10px 24px rgba(0, 0, 0, 0.35);
+}
+.qb-answer:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.08); }
+.qb-answer:active:not(:disabled) { transform: translateY(0); }
+.qb-answer:disabled { cursor: default; }
+.qb-answer .qb-answer-icon {
+  flex: 0 0 auto;
+  width: clamp(28px, 5vw, 44px);
+  height: clamp(28px, 5vw, 44px);
+  display: grid;
+  place-items: center;
+  background: rgba(255, 255, 255, 0.28);
+  border-radius: 10px;
+  font-weight: 800;
+}
+.qb-answer.c0 { background: #e21b3c; }
+.qb-answer.c1 { background: #1368ce; }
+.qb-answer.c2 { background: #d89e00; }
+.qb-answer.c3 { background: #26890c; }
+.qb-answer.is-picked { outline: 4px solid #fff; outline-offset: 2px; }
+.qb-answer.is-correct { box-shadow: 0 0 0 4px #fff, 0 0 28px rgba(38,137,12,0.8); }
+.qb-answer.is-wrong { opacity: 0.45; }
+.qb-answer.is-dimmed { opacity: 0.4; }
+
+.qb-answered-info { font-size: clamp(14px, 2.2vw, 20px); color: rgba(255,255,255,0.78); font-weight: 600; }
+
+/* countdown */
+.qb-countdown-num { font-size: clamp(80px, 22vw, 220px); font-weight: 800; line-height: 1; color: #57efff; text-shadow: 0 0 40px rgba(87,239,255,0.6); }
+.qb-countdown-label { font-size: clamp(18px, 3vw, 30px); font-weight: 600; }
+
+/* reveal / result feedback */
+.qb-feedback { font-size: clamp(28px, 6vw, 64px); font-weight: 800; }
+.qb-feedback.ok { color: #34d399; }
+.qb-feedback.no { color: #f87171; }
+.qb-delta { font-size: clamp(20px, 3.4vw, 34px); font-weight: 700; color: #fbbf24; }
+
+/* leaderboard */
+.qb-board { width: min(100%, 560px); display: flex; flex-direction: column; gap: 8px; }
+.qb-board-title { font-size: clamp(18px, 3vw, 28px); font-weight: 700; margin-bottom: 4px; }
+.qb-board-row {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 10px 16px;
+  border-radius: 12px;
+  background: rgba(255, 255, 255, 0.07);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  font-size: clamp(15px, 2.4vw, 20px);
+}
+.qb-board-row.me { background: rgba(87, 239, 255, 0.16); border-color: rgba(87,239,255,0.4); }
+.qb-board-row.top1 { background: linear-gradient(90deg, rgba(251,191,36,0.25), rgba(255,255,255,0.05)); border-color: rgba(251,191,36,0.5); }
+.qb-board-rank { flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,0.14); font-weight: 800; }
+.qb-board-row.top1 .qb-board-rank { background: #fbbf24; color: #1a1500; }
+.qb-board-name { flex: 1; text-align: left; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.qb-board-score { flex: 0 0 auto; font-weight: 700; color: #57efff; }
+
+/* lobby (waiting room) */
+.qb-lobby-title { font-size: clamp(26px, 5vw, 52px); font-weight: 800; }
+.qb-lobby-sub { font-size: clamp(15px, 2.6vw, 22px); color: rgba(255,255,255,0.78); }
+.qb-players {
+  width: min(100%, 720px);
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  justify-content: center;
+  max-height: 34vh;
+  overflow-y: auto;
+}
+.qb-player-chip {
+  padding: 8px 16px;
+  border-radius: 999px;
+  background: rgba(255,255,255,0.08);
+  border: 1px solid rgba(255,255,255,0.14);
+  font-size: clamp(13px, 2.2vw, 18px);
+  font-weight: 600;
+}
+.qb-player-chip.me { background: rgba(87,239,255,0.18); border-color: rgba(87,239,255,0.45); }
+
+/* primary action button */
+.qb-btn {
+  border: none;
+  border-radius: 14px;
+  padding: 14px 40px;
+  font: inherit;
+  font-size: clamp(18px, 3vw, 26px);
+  font-weight: 700;
+  color: #04121f;
+  background: linear-gradient(180deg, #67e8f9, #22d3ee);
+  cursor: pointer;
+  box-shadow: 0 8px 24px rgba(34,211,238,0.35);
+  transition: transform 0.1s ease, filter 0.1s ease;
+}
+.qb-btn:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.05); }
+.qb-btn:active:not(:disabled) { transform: translateY(0); }
+.qb-btn:disabled { opacity: 0.5; cursor: default; }
+.qb-btn.ghost { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.2); box-shadow: none; }
+
 
 
 
diff --git a/www/html/Quiz-Battle/style.css.bak-20260605-050107 b/www/html/Quiz-Battle/style.css.bak-20260605-050107
new file mode 100644
index 0000000..4f6c675
--- /dev/null
+++ b/www/html/Quiz-Battle/style.css.bak-20260605-050107
@@ -0,0 +1,386 @@
+* { box-sizing: border-box; }
+
+@font-face {
+  font-family: 'NotoSansThai';
+  src: url('../FONTS/NotoSansThai-ExtraBold.ttf') format('truetype');
+  font-weight: 100 900;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: 'NotoSansThaiMedium';
+  src: url('../FONTS/NotoSansThai-Medium.ttf') format('truetype');
+  font-weight: 500;
+  font-style: normal;
+  font-display: swap;
+}
+
+html {
+  min-height: 100%;
+  -webkit-text-size-adjust: 100%;
+}
+
+body {
+  margin: 0;
+  min-height: 100vh;
+  min-height: 100dvh;
+  overflow-x: hidden;
+  font-family: 'Kanit', 'Sarabun', 'Segoe UI', system-ui, sans-serif;
+  color: #fff;
+  background: #030712;
+}
+
+.qb-bg {
+  position: fixed;
+  inset: 0;
+  z-index: 0;
+}
+
+.qb-bg-img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  object-position: center;
+}
+
+.qb-vignette {
+  position: fixed;
+  inset: 0;
+  z-index: 1;
+  pointer-events: none;
+  background: radial-gradient(ellipse at 50% 25%, transparent 15%, rgba(0, 0, 0, 0.4) 100%);
+}
+
+.qb-ui {
+  --qb-ui-scale: 1;
+  position: relative;
+  z-index: 2;
+  min-height: 100vh;
+  min-height: 100dvh;
+  padding:
+    max(calc(10px * var(--qb-ui-scale)), env(safe-area-inset-top))
+    max(calc(12px * var(--qb-ui-scale)), env(safe-area-inset-right))
+    max(calc(14px * var(--qb-ui-scale)), env(safe-area-inset-bottom))
+    max(calc(12px * var(--qb-ui-scale)), env(safe-area-inset-left));
+  overflow: hidden;
+}
+
+.qb-top {
+  position: absolute;
+  top: max(calc(10px * var(--qb-ui-scale)), env(safe-area-inset-top));
+  left: max(calc(12px * var(--qb-ui-scale)), env(safe-area-inset-left));
+  right: max(calc(12px * var(--qb-ui-scale)), env(safe-area-inset-right));
+  display: flex;
+  align-items: flex-start;
+  justify-content: flex-end;
+  gap: calc(8px * var(--qb-ui-scale));
+  min-height: calc(157px * var(--qb-ui-scale));
+  z-index: 6;
+  pointer-events: none;
+}
+
+.qb-top-fill {
+  flex: 1;
+  min-width: calc(8px * var(--qb-ui-scale));
+  pointer-events: none;
+}
+
+/* กรอบแดง 1: ใช้ layout แบบ Join Room back button */
+.qb-join-back {
+  position: fixed;
+  top: max(2px, env(safe-area-inset-top));
+  left: max(2px, env(safe-area-inset-left));
+  padding: 0;
+  border: none;
+  background: transparent;
+  cursor: pointer;
+  z-index: 20;
+  pointer-events: auto;
+  -webkit-tap-highlight-color: transparent;
+}
+
+.qb-join-back-img {
+  --qb-exit-btn-height: 142px;
+  display: block;
+  height: var(--qb-exit-btn-height);
+  width: calc(var(--qb-exit-btn-height) * (122 / 142));
+  object-fit: contain;
+}
+
+/* กรอบแดง 2: ใช้ layout แบบ room-lobby-profile-avatar-viewport */
+.qb-room-profile-wrap {
+  flex-shrink: 0;
+  pointer-events: none;
+}
+
+.qb-room-profile-frame {
+  position: relative;
+  width: 159px;
+  height: 157px;
+  min-width: 159px;
+  min-height: 157px;
+  max-width: 159px;
+  max-height: 157px;
+  aspect-ratio: 159 / 157;
+  border-radius: 0;
+  border: none;
+  overflow: hidden;
+  background: url(../Game/img/btn-profile-bg.png) center/100% 100% no-repeat;
+  box-shadow: none;
+}
+
+.qb-room-profile-avatar-viewport {
+  position: absolute;
+  left: 18px;
+  top: 10px;
+  width: 124px;
+  height: 118px;
+  overflow: hidden;
+  border-radius: 12px;
+}
+
+.qb-room-profile-avatar {
+  position: absolute;
+  left: 50%;
+  top: 5px;
+  display: block;
+  width: 120%;
+  height: auto;
+  max-width: none;
+  object-fit: contain;
+  object-position: center top;
+  transform: translateX(-50%);
+  transform-origin: center center;
+  image-rendering: pixelated;
+  image-rendering: crisp-edges;
+  pointer-events: none;
+}
+
+.qb-main {
+  --qb-main-scale: 1;
+  --qb-banner-width: calc(419px * var(--qb-main-scale));
+  --qb-banner-height: calc(151px * var(--qb-main-scale));
+  --qb-card-width: calc(271px * var(--qb-main-scale));
+  --qb-card-height: calc(351px * var(--qb-main-scale));
+  --qb-card-start-height: calc(83px * var(--qb-main-scale));
+  --qb-card-start-width: calc(168px * var(--qb-main-scale));
+  --qb-grid-gap-x: calc(18px * var(--qb-main-scale));
+  --qb-grid-gap-y: calc(14px * var(--qb-main-scale));
+  --qb-main-gap-banner-grid: calc(12px * var(--qb-main-scale));
+  --qb-main-gap-grid-toast: calc(8px * var(--qb-main-scale));
+  position: relative;
+  z-index: 3;
+  width: 100%;
+  height: calc(100dvh - max(calc(10px * var(--qb-ui-scale)), env(safe-area-inset-top)) - max(calc(14px * var(--qb-ui-scale)), env(safe-area-inset-bottom)));
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: flex-start;
+  min-height: 0;
+  overflow: hidden;
+  padding-top: calc(2px * var(--qb-main-scale));
+}
+
+.qb-main::-webkit-scrollbar {
+  width: 0;
+  height: 0;
+}
+
+.qb-main::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.qb-main::-webkit-scrollbar-thumb {
+  background: transparent;
+}
+
+.qb-room-banner {
+  flex: 0 0 auto;
+  width: var(--qb-banner-width);
+  height: var(--qb-banner-height);
+  max-width: 100%;
+  flex-shrink: 0;
+  margin: 0 auto var(--qb-main-gap-banner-grid);
+  margin-top: calc(60px * var(--qb-main-scale));
+}
+
+
+
+
+
+.qb-room-banner img {
+  display: block;
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.35));
+}
+
+.qb-grid {
+  width: auto;
+  max-width: 100%;
+  display: grid;
+  grid-template-columns: repeat(5, var(--qb-card-width));
+  grid-auto-rows: var(--qb-card-height);
+  justify-content: center;
+  align-content: start;
+  column-gap: var(--qb-grid-gap-x);
+  row-gap: var(--qb-grid-gap-y);
+  padding: 0;
+}
+
+
+
+
+
+.qb-card {
+  position: relative;
+  width: var(--qb-card-width);
+  height: var(--qb-card-height);
+  padding: 0;
+  border: none;
+  background: transparent;
+  border-radius: 8px;
+  cursor: default;
+  overflow: hidden;
+  -webkit-tap-highlight-color: transparent;
+}
+
+.qb-card-room {
+  display: block;
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+  pointer-events: none;
+  user-select: none;
+}
+
+.qb-card-start {
+  position: absolute;
+  left: 50%;
+  bottom: calc(25px * var(--qb-main-scale));
+  transform: translateX(-50%);
+  width: var(--qb-card-start-width);
+  height: var(--qb-card-start-height);
+  border: none;
+  padding: 0;
+  background: transparent;
+  cursor: pointer;
+  z-index: 2;
+  transition: transform 0.14s ease, filter 0.14s ease;
+}
+
+.qb-card-start:hover,
+.qb-card-start:focus-visible {
+  transform: translateX(-50%) translateY(-1px);
+  filter: brightness(1.06);
+}
+
+.qb-card-start:focus-visible {
+  outline: 2px solid #22d3ee;
+  outline-offset: 3px;
+  border-radius: 8px;
+}
+
+.qb-card-start:active {
+  transform: translateX(-50%) translateY(0);
+}
+
+.qb-card-start img {
+  display: block;
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+  pointer-events: none;
+}
+
+.qb-card-count {
+  position: absolute;
+  top: calc(44px * var(--qb-main-scale));
+  right: calc(54px * var(--qb-main-scale));
+  font-family: 'NotoSansThaiMedium', 'NotoSansThai', 'Kanit', 'Sarabun', system-ui, sans-serif;
+  font-size: calc(22px * var(--qb-main-scale));
+  font-weight: 500;
+  line-height: 1;
+  color: #ffffff;
+  letter-spacing: 0;
+  text-shadow:
+    0 0 calc(10px * var(--qb-main-scale)) rgba(87, 239, 255, 0.55),
+    0 0 calc(2px * var(--qb-main-scale)) rgba(0, 0, 0, 0.65);
+  pointer-events: none;
+  user-select: none;
+  z-index: 3;
+}
+
+.qb-toast {
+  text-align: center;
+  font-size: calc(20px * var(--qb-main-scale));
+  color: rgba(248, 250, 252, 0.88);
+  line-height: 1.2;
+  min-height: calc(24px * var(--qb-main-scale));
+  margin-top: var(--qb-main-gap-grid-toast);
+  flex-shrink: 0;
+  padding: 0 calc(8px * var(--qb-main-scale)) calc(4px * var(--qb-main-scale));
+}
+
+/* มุมขวาล่าง — btn-voice (ซ่อนไว้ก่อน: ทับการ์ด Room 09–10 ในหน้าเลือกห้อง) */
+.qb-room-lobby-br-fixed {
+  --lobby-br-btn: calc(121px * var(--qb-ui-scale, 1));
+  display: none !important;
+  visibility: hidden !important;
+  pointer-events: none !important;
+  position: fixed;
+  bottom: max(calc(0.95rem * var(--qb-ui-scale, 1)), env(safe-area-inset-bottom));
+  right: max(calc(1.25rem * var(--qb-ui-scale, 1)), env(safe-area-inset-right));
+  z-index: 400;
+  flex-direction: row;
+  align-items: flex-end;
+  gap: calc(10px * var(--qb-ui-scale, 1));
+  pointer-events: none;
+}
+
+.qb-room-lobby-br-fixed .btn-voice-icon {
+  pointer-events: auto;
+  box-sizing: border-box;
+  width: var(--lobby-br-btn);
+  height: var(--lobby-br-btn);
+  min-width: var(--lobby-br-btn);
+  min-height: var(--lobby-br-btn);
+  max-width: var(--lobby-br-btn);
+  max-height: var(--lobby-br-btn);
+  margin: 0;
+  padding: 0;
+  border: none;
+  border-radius: 0;
+  appearance: none;
+  -webkit-appearance: none;
+  flex-shrink: 0;
+  cursor: pointer;
+  background: transparent;
+  box-shadow: none;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.qb-room-lobby-br-fixed .btn-voice-icon img {
+  width: 100%;
+  height: 100%;
+  max-width: 100%;
+  max-height: 100%;
+  object-fit: contain;
+  object-position: center;
+  display: block;
+  pointer-events: none;
+  user-select: none;
+  -webkit-user-drag: none;
+}
+
+
+
+
+
+
+
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