密封塑料瓶抽气收缩

生成一段20秒、16:9画幅的视频：展示一个密封、空置且透明的柔性塑料瓶，瓶内空气被逐渐抽出。使用固定机位，背景干净中性，光线均匀柔和。开头瓶子直立且完全充盈，随后随着内部空气体积减少，瓶壁以连续、符合物理规律的过程缓慢向内弯曲并塌缩，呈现平滑的延时摄影效果。全程清晰看到瓶身、瓶盖及周围环境；采用近距离产品展示构图、清晰对焦、真实的塑料反光和流畅运动。结尾瓶子明显压缩但仍保持密封。不要出现人物、标签、文字、标志、额外物体、剪辑或音频。

【English Prompt】
Create a 20-second video in a 16:9 aspect ratio showing a sealed, empty, transparent flexible plastic bottle as air is gradually extracted from inside. Use a locked-off camera and a clean neutral background with even soft lighting. Begin with the bottle fully inflated and upright, then show its walls slowly bending inward and collapsing in a continuous, physically plausible progression as the internal air volume decreases. Keep the bottle, cap, and surrounding environment clearly visible throughout; use a close product-style composition, sharp focus, realistic plastic reflections, and smooth time-lapse motion. End with the bottle substantially compressed while remaining sealed. No people, labels, text, logos, added objects, cuts, or audio.

【推荐生成参数】audio_control.mode=native · duration=20 · ratio=16:9 · resolution=768P

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