简约风渐变背景素材

Best-selling tech minimalist illustration, 16:9 horizontal version, futuristic elements (blue gradient light + silver geometric lines + transparent circles), dark gray background, slight glowing effect, low-saturation tech color scheme (blue + silver + gray), ultra HD 8K resolution, clean and avant-garde image, ample left and right white space, commercial use with copyright-free, tech atmosphere --ar 16:9 --q 2 --v 6