purple grid fade

Use this MotionSites background video as a looping website background asset.
Title: Purple Grid Fade
Category: background
License: 免费
Video URL: https://d8j0ntlcm91z4.cloudfront.net/user_38xzZboKViGWJOttwIXH07lWA1P/hf_20260302_085640_276ea93b-d7da-4418-a09b-2aa5b490e838.mp4
Local thumbnail: thumbnails/3d50b486-c4e0-4b20-9745-d1d486a1823c.png
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.