seedance 提示词：光学变焦运镜教学（江南雨后古巷 · 两人重逢 · 固定机位只靠变焦讲故事）

时长与镜头：约 13 秒三段，全程同一个机位：广—中景推进 → 长焦压缩 + 移焦 → 极慢推进到中近景。这是一条"运镜教学"型提示词：大多数 AI 视频动不动就环绕、横移，而这里刻意只用光学变焦，让"两人距离越来越近"的情绪完全由镜头焦段来表达。

要点：①反复强调"机位不动、只做光学变焦"，并在禁止项里点名横移、环绕、无人机；②用"前景行人遮挡""廊柱前景框"制造层次；③长焦压缩空间是真实镜头特性，写出"纵深变浅、两人视觉距离拉近"，模型更容易理解你要的效果。

怎么填变量：[江南古镇] 可以换成"民国老街""日式小站月台""雪后的胡同"；台词 [好久不见。] 换成任意一句短台词。两个人物也可以是一男一女、或者一人一宠物。

常见失败与调整：

• 模型还是做了推轨或环绕：把"禁止横移、环绕"挪到提示词最前面，并缩短总时长。
• 两人左右位置互换：写"女主 A 始终在画面左侧，女主 B 始终在右侧"。
• 出现现代电线杆、空调外机：负面提示词点名这些物体。

改编自 @GrayNoteLab 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（原文较长，此处节选）（原帖为中文，以下为仓库收录的英文译本）

[Global Settings]
Ancient-style realistic cinematic shot, Eastern classical life narrative, Jiangnan ancient town after rain: bluestone steps, blue bricks and black tiles, wooden corridors, carved wooden doors, bamboo curtains, wet stone alleys. Soft diffused light under cloudy skies, low contrast, fusion of cold gray-green and warm wood tones, slight 35mm film grain, realistic skin, wood, stone, and fabric textures, cinematic shallow depth of field, 8K, 16:9.

Female Lead A: Image 1
Female Lead B: Image 2

Strictly maintain character identity, spatial position, left-right relationship, direction of movement, weather, lighting, and color tone continuity throughout the video.

[Core Cinematography Technique]
The entire video uses "progressive optical zoom" as the sole core camera movement. The camera remains as fixed as possible, relying not on physical movement but on slow, continuous optical push-ins and pull-outs to change the characters' screen proportion and spatial relationships. Maintain real lens compression, depth of field changes, and optical characteristics; prohibit digital cropping. Foreground occlusion, shallow depth of field, and focus shifts assist the narrative, forming "discovery from afar -> eye contact across the alley -> spatial compression -> emotional confirmation."

[0-4s]
Medium shot start, 35mm, fixed camera, eye level. Female Lead A slowly descends along the bluestone steps to the alley entrance, stops, turns, and looks up, seeing Female Lead B under the distant corridor eaves. The shot begins with a wider environmental relationship composition, only slowly optically pushing in, gradually tightening to a medium shot of Female Lead A, with no camera movement.

Town pedestrians pass horizontally through the foreground from left and right, creating natural blurred occlusions at close range, while Female Lead A remains clear; exposure, color temperature, and light/shadow remain stable during occlusion. The zoom continues smoothly and restrainedly, finally forming an eye contact between Female Lead A and Female Lead B across the alley.

[4-9s]
Continuing from the previous segment, the camera position remains completely unchanged. Female Lead B slowly enters from the right foreground, approaching the wooden corridor pillar, forming a natural foreground frame with the pillar; Female Lead A is deep in the left-middle alley.

Slow continuous optical zoom, Female Lead A initially remains clear, then the shot gradually tightens, Female Lead B's foreground proportion increases, and Female Lead A recedes into the background with soft blur.
……