background 01（941f7a57）

Use this MotionSites background video as a looping website background asset.
Title: Background 01
Category: background
License: 付费
Video URL: https://d8j0ntlcm91z4.cloudfront.net/user_38xzZboKViGWJOttwIXH07lWA1P/hf_20260421_102157_ad7d8fd0-1039-4516-8d40-db76927cc9c5.mp4
Local thumbnail: thumbnails/941f7a57-6070-497d-bde6-80883b0e576e.jpg
Implementation requirements:
- Render the video as a muted, autoplay, looped, playsInline background layer.
- Use object-fit: cover and keep the focal motion visible on desktop and mobile.
- Add a readable overlay only when foreground text needs contrast.
- Keep controls hidden for decorative background use, and provide a poster/thumbnail fallback.
- Respect the MotionSites authorization state before using this asset in a commercial project.