动效背景｜Sparkles / Sparkles — background

You are an expert frontend engineer. Rebuild this UI to match the preview.
Component: Sparkles
Slug: sparkles
Category: background
Author: user_aceternity
Preview image: https://cdn.21st.dev/user_aceternity/sparkles/default/preview.png
Preview video: https://cdn.21st.dev/user_aceternity/sparkles/default/video.mp4
Stack: React + Tailwind CSS + Framer Motion (respect prefers-reduced-motion).
Requirements:
- Closely match the preview composition, hierarchy, spacing, and motion
- Production-ready, responsive, accessible focus states
- Prefer shadcn/ui primitives when useful
- Do not invent unrelated pages; ship only this component/section
Deliver:
1) Component code
2) Key Tailwind classes
3) Motion variants
4) Short ZH + EN microcopy for labels/CTA

动效背景｜Sparkles / Sparkles — background

悬停/点击查看真实组件预览；复制提示词需 10 积分（同一资源再次免费）。

预览来源：21st.dev · user_aceternity / sparkles