purple silk waves

Use this MotionSites background video as a looping website background asset.
Title: Purple Silk Waves
Category: background
License: 付费
Video URL: https://stream.mux.com/Xw9AMwwJ5IHKwfzikjGlxoI3MLaKyLpk74rM01UdMsco.m3u8
Local thumbnail: thumbnails/dc46d2f4-75a7-43ea-87c6-20c97888870a.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.