black hole vortex

Use this MotionSites background video as a looping website background asset.
Title: Black Hole Vortex
Category: background
License: 免费
Video URL: https://stream.mux.com/Aa02T7oM1wH5Mk5EEVDYhbZ1ChcdhRsS2m1NYyx4Ua1g.m3u8
Local thumbnail: thumbnails/ee1fcaf6-69f4-4d21-b693-9b11e1748c4a.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.