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.