极简产品广告短片 · 4 秒快测Minimalist product ad short · 4s quick test

电商与新品发布用的极简产品广告：干净背景、精准打光、一句卡点文案。产品实拍图作为关键帧进请求，提示词只负责运镜、质感与卡点节奏，不重新描述产品外观——重新描述会让模型改掉产品本身。【4 秒快测版】内容与原版一致，压到 4 秒用于试参数、试素材、试机器，不用于出成片。

Minimalist product ad: clean backdrop, one hero moment, one beat-synced headline. The product image drives the look. [4s quick test] Same content as the full-length version, cut to 4 seconds for checking parameters, assets and hardware — not for final delivery.