時長與鏡頭：原作按 30 秒設計、每 2–3 秒一個時代。Seedance 2.0 官方說明單條最長 15 秒，九個時代塞不進去，實際用時建議只選 4–5 個，例如"遠古 → 秦漢 → 盛唐 → 近代 → 當代"；想要完整版就分兩條：第二條用第一條的最後一幀作首幀繼續跑。

最值得學的是"遮擋轉場"：讓一個真實物體（車輪、旗子、門、蒸汽）貼着鏡頭掃過 0.2–0.8 秒，在被擋住的那一瞬間完成換裝換景。觀眾會覺得是一鏡到底，模型也有了"合理換畫面"的機會，比直接要求"背景變成唐朝"穩得多。這個方法同樣適合做"一鏡到底換裝""一鏡到底四季變化"。

怎麼用：@圖片1 用你自己的正臉清晰照片，並在提示詞裏強調"只鎖身份、不繼承服裝背景"。時代列表裏的 [變量] 可以改成任何時間線，比如"一座城市的 1950 → 1980 → 2000 → 現在"，或者"一個人的童年 → 少年 → 中年"。

常見失敗與調整：

• 每個時代換了一張臉：減少時代數量，並把"臉部嚴格以 @圖片1 為準"放在提示詞最前面。
• 出現硬切：把轉場物體寫得更具體（"一扇厚重的木門從鏡頭前滑過，完全遮住畫面半秒"）。
• 古代場景像影視城：加"真實的泥土、灰塵、磨損的器物、忙碌的普通人"。

改編自 @QtImVCr6WK56152 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（原文較長，此處節選）（原帖為中文，以下為倉庫收錄的英文譯本）

Generate a [30-second, 16:9 horizontal, 4K, live-action, high-budget cinematic quality] "Chinese Civilization Time Travel" short film, deeply referencing the actual camera structure and time progression logic of my uploaded reference video: This is not an edit of multiple historical scenes, but a single camera following [the same Chinese male] continuously forward from second 0 to 30, traveling from ancient times through thousands of years of Chinese civilization, and finally continuing past contemporary times into the future like the reference video; Use my uploaded male photo as the [sole and absolute face reference] for the entire film, the photo is only responsible for locking the person's identity, strictly maintaining his face shape, feature proportions, eyebrows/eyes, eye distance, nose bridge/tip, lips, jawbone, facial bone structure, skin tone base, youthful age sense, and recognizability. Absolutely do not reference the blue suit, tie, restaurant, chandelier, roses, jewelry, sitting posture, or background in the photo. Throughout 0-30s, viewers must clearly recognize this is the man from the reference image; prohibit changing actors per era, prohibit feature drift, prohibit becoming different ancient handsome guys or AI template faces. Era changes can only alter his hairstyle, hair length, binding method, beard, clothing materials, footwear, headwear, belts, tools, accessories, status, and habits. The entire film must visually be a true "one-take shot," prohibiting hard cuts, black screens, flash whites, fades, dissolves, sudden scene changes, character teleportation, or background refreshes. The character must never stand still letting the world change around him; he must actively move forward, running, walking fast, crossing, jumping down stairs, dodging sideways, grabbing vehicles, passing through crowds, pushing doors, climbing bridges, passing buildings, going past transport. The camera moves with him, naturally changing framing between side-front tracking, frontal backward tracking, lateral panning, rear chasing, low-angle footsteps, wide shots, and close-ups like the reference video. All era transitions should prioritize hidden cuts using real physical motion, e.g., rocks, pottery wheels, cart wheels, chariots, pillars, flags, fabrics, scrolls, doors, bridge columns, carriages, steam, trains, buses, crowds, glass curtains, transparent barriers passing extremely close to the camera and briefly obscuring for 0.2-0.8 seconds. During obstruction, character styling, held items, ground, and surrounding world must evolve simultaneously.
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