時長與鏡頭：15 秒四段 + 切黑：發現 → 心跳 → 甦醒 → 懸念。原作的結構是"同一個刺激（心跳）重複四次、每次升級一點"，這是懸疑片最經典的節奏：第一次讓人懷疑、第二次確認、第三次升級、第四次爆發。

寫法要點：①用擬聲詞"咚"標出節拍，模型會把聲音和畫面變化對齊；②結尾的約束句很關鍵——"全程保持化石狀態、不長血肉、沒有魔法光效"，否則模型很容易把化石"復活"成一條完整的龍，懸念就沒了；③固定"兩名探險者 + 一具骨架"的數量。

怎麼填變量：[地下洞穴] 換成"沙漠考古現場""深海沉船艙""博物館閉館後的大廳"；巨龍可以換成"遠古巨鯨""巨人石像""沉睡的機甲"。

常見失敗與調整：

• 龍直接復活飛起來：保留結尾約束，並把"前爪合攏"作為最大的動作。
• 洞穴太暗什麼也看不清：寫"兩盞頭燈的光束和洞頂裂縫透下的微光"。
• 探險者數量變化：每段都寫"兩名探險者"。

改編自 @DeCat2025 發佈、YouMind-OpenLab/awesome-seedance-2-prompts 收錄的提示詞，許可證 CC BY 4.0。

英文原版

15-second photorealistic live-action dark fantasy. Two explorers inside a vast underground cavern discover the enormous fossilized skeleton of an ancient dragon embedded in rock. The complete skull and massive rib cage are clearly visible. Realistic geology, headlamps, dust, scale and human movement.  

0–4s - DISCOVERY: Wide shot. The explorers walk beneath gigantic fossilized ribs towering over them. One places his gloved hand against a rib for scale.  THUMP.  A deep heartbeat reverberates through the entire skeleton.  Both explorers freeze.  

0–8s  IT BEATS AGAIN: Close shot on the hand touching the fossil.  THUMP.  Stronger.  Dust jumps from every bone simultaneously. The explorer immediately pulls his hand away.  THUMP.  The dragon’s huge rib cage visibly expands a few centimeters as if taking its first breath in centuries, then settles.  The explorers slowly back away.  

8–12s - WAKING: Camera tracks toward the enormous fossilized skull.  Another violent heartbeat.  Small rocks fall from the skull. Its lower jaw slowly opens with a deep grinding sound.  Inside the empty eye socket, something moves deep in the darkness.  

12–15s - CLIFF-HANGER: Wide shot with the tiny explorers beneath the skeleton.  THUMP.  The entire cavern shakes.  The dragon’s enormous fossilized front claw suddenly CLOSES against the stone floor.  The explorers stare upward.  A massive inhale echoes through the cavern.  

CUT TO BLACK.  Sound: cavern ambience, increasingly powerful heartbeats resonating through bone, falling grit, grinding fossilized joints, final enormous breath.  Photorealistic and physically grounded. The dragon remains a fossilized skeleton throughout - no flesh regeneration, transformation, magical glow or fire. Keep exactly two explorers and one consistent skeleton. Real bone weight, dust and rock interaction. No extra limbs, changing anatomy, glowing eyes, fantasy particles or CGI look.