Main subject: Dark blue gradient background, luminous line spiral tunnel, semi-transparent floating earth, cyan refraction halo, concentric surrounding rings, radial wavy lines. Scene: Cutting-edge tech digital aesthetic theme promotional visual design. Style: Futuristic minimalist tech style, strong dynamic lines, with digital vortex immersive atmosphere. Color tone: Overall cool dark blue gradient base, earth supplemented with cyan transparent halo, lines accented with neon highlights, color scheme is advanced and rich in tech texture. Lighting and shadow: Spiral tunnel lines have their own flowing soft light, semi-transparent earth surface refracts layered halos, concentric rings and radial waves have their own diffuse light effects, overall light is smooth and vivid. Composition: Visual focus concentrated on the right half of the frame, spiral tunnel embeds floating earth, concentric rings and radial waves extend outward to form a visual vortex, large area of white space on the left balances the frame, no text at all. Purpose: Tech summit main visual, metaverse virtual space background, internet brand image poster, digital tech conference exhibition board background image.