时长与镜头：三段式"日常 → 奇观 → 再拉远一层"是脑洞短片最稳的结构：第三段的再次反转决定了完播率。若模型在 15 秒内塞不下玻璃球结尾，可以把镜头三单独生成：以镜头二最后一帧作首帧，写"镜头急速拉远，整片麦田缩进一个玻璃球里"。

怎么填变量：[金色麦田] 换成"[海边小镇]""[学校操场]"更有代入感；[赛博朋克未来城市] 换成"[深海世界]""[恐龙时代的丛林]""[一片纯白的空房间]"，每换一个就是一条新视频。拉链也可以换成"天空像墙纸一样被撕开一角"。

常见失败与调整：

• 拉链像一根柱子立在地上：写明"拉链是水平横贯天空的，链牙沿地平线方向排列"。
• 巨手太实，像真人手：保留"半透明""发光边缘"。
• 结尾巨人的脸太吓人或太清晰：改成"只看到巨人模糊的眼睛和桌面的灯光"。

改编自 @johnAGI168 发布、ZeroLu/awesome-seedance 收录的提示词（Copyright (c) 2026 ZeroLu，MIT License）。

英文原版

【Style】Surrealism, megalophobia, epic visual spectacle, Hollywood special effects quality, extremely realistic lighting and shadow rendering.
【Duration】15 seconds
【Scene】Above a clear city skyline, or an open wheat field.
[00:00-00:05] Shot 1: Calm illusion (The Calm).
The scene shows a cloudless, absolutely beautiful blue sky, sunny and bright, with birds flying by. The camera slowly tilts upward, giving a feeling of peaceful times.
Key detail: Suddenly, a giant, silver metallic gleam appears in the sky—it's a **"zipper"** spanning across the horizon.
[00:05-00:10] Shot 2: Unzipping the zipper (The Unzipping).
A **giant, translucent God's hand** grasps the zipper pull, slowly unzipping the blue sky with a tremendous roar (audio effect).
Action: As the zipper opens, the "blue sky" wrinkles and falls like fabric.
Visual spectacle: Behind the zipper is **not the universe**, but a **cyberpunk future world filled with neon lights, flying cars, and giant mechanical structures** (or a giant mechanical eye staring at us).
[00:10-00:15] Shot 3: Gaze between two worlds (The Revelation).
Only a corner of blue sky remains hanging in the sky. It turns out our living world was just an "eco-box" covered up.
Ending: The camera rapidly pulls back to reveal that our entire world (city/wheat field) is actually just a **glass miniature landscape ball** on a giant's table. The giant is leaning in close to observe us.