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虚构火箭图纸与发射动画

3D Scene

一段虚构大型火箭的图纸转发射动画，本片 20 秒加 3.5 秒片尾：青色发光的发射场布置图从中心扫描绘出，线条升起成光之线框，光粒子盘旋中发射台与火箭从下而上堆叠成形，随后化为夜间海边发射场，倒计时、点火、升空。同时产出 CAD 图纸，音效全用 Python 合成。适合做航天科普、科技感片头。

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You are an expert web designer. Build a stunning, production-ready page with
a bold hero section, smooth CSS transitions and a carefully tuned dark palette.
Use a neutral background, generous rounded corners and one electric accent color.
Structure the layout with a sticky header, feature grid, social proof and a final
call to action. Keep typography tight, spacing consistent and motion subtle.

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