科技风未来感科幻场景背景素材

Abstract geometric technical background, with a deep indigo blue background, overlaid with glowing octagonal and grid-like technical textures. The top reserves 25% horizontal copy space, compatible with 3C product flat advertisements, and integrates flowing particle light effects to enhance the sense of technology. --ar 16:9 --c 3 --q 1 --s 100 --v 7