时长与镜头：整条只有一个缓慢推近的镜头，没有剪切，10 秒刚好；5 秒版本删掉海鸥和枫叶两句即可。双重曝光的关键是"剪影外面干净、剪影里面在动"，所以动态元素都写在剪影内部。

怎么填变量：[海边日落] 可换"[樱花飘落的街道]""[极光下的雪原]""[城市夜景车流]"；做婚礼视频时，把最后一句改成"两个剪影慢慢牵起手"；做单人版，把"一对情侣"改成"一个女孩的侧脸剪影"。

常见失败与调整：

• 剪影变成了真实人脸：在开头加"剪影内部看不到五官，只看到风景"。
• 剪影边缘抖动、闪烁：保留负面词，并把运镜改为"固定机位"。
• 画面太灰：双重曝光容易发灰，加"高对比、剪影轮廓清晰"，配色只留 2–3 种。

改编自 @churvikv 发布、YouMind-OpenLab/awesome-seedance-2-prompts 收录的提示词，许可证 CC BY 4.0。

英文原版

Cinematic 10-second shot, double-exposure silhouette of a couple facing each other, their silhouettes filled with a living sunset seascape. The sun slowly descends toward the horizon, its golden light shimmering and flickering inside the translucent silhouettes. Gentle ocean waves roll onto the sandy beach in soft, slow motion, warm reflections dancing on the water. A flock of seagulls glides gracefully across the pastel pink-and-blue sky, flying away into the distance. Autumn maple leaves on the sand tremble and drift slightly in a light breeze, one leaf lifts and swirls into the air. In the final seconds the two silhouettes lean subtly toward each other, almost touching foreheads. Slow dreamy camera push-in, soft pastel color palette (peach, lavender, gold, sea-blue), warm rim light, ethereal romantic atmosphere, smooth gentle motion, no cuts, no text.

no face distortion, no morphing artifacts, no flickering silhouette edges, no text, no watermark, no fast motion, no scene change, no extra people