animated background 101827

Use this MotionSites background video as a looping website background asset.
Title: Animated Background 101827
Category: background
License: 免费
Video URL: https://d8j0ntlcm91z4.cloudfront.net/user_38xzZboKViGWJOttwIXH07lWA1P/hf_20260503_101827_abebfeec-f243-466b-b494-7f6814c0fbbf.mp4
Local thumbnail: thumbnails/c763035d-4033-49a8-bde8-82e53aeaa5d4.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.