background 05（6435643e）

Use this MotionSites background video as a looping website background asset.
Title: Background 05
Category: background
License: 免费
Video URL: https://d8j0ntlcm91z4.cloudfront.net/user_38xzZboKViGWJOttwIXH07lWA1P/hf_20260511_131941_d136af49-e243-493a-be14-6ff3f24e09e6.mp4
Local thumbnail: thumbnails/6435643e-5730-4000-a851-14f522bd117d.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.