Future Tech Vertical Light Texture Background AI Image Prompt

Future tech light texture style, high-end brand visual, tech product dedicated background, pure black background, dominant color teal-green + ice-blue gradient, light source at bottom, light effects spreading upward from bottom to fill the frame; core visual is vertical parallel strip-shaped radiating light texture, composed of dense dotted line particles, extending vertically upward from bottom, full of vertical flowing visual tension; layering details: at bottom light source the dot texture density is highest and brightest, lines gradually become thinner and fade upward; light texture is semi-transparent light bands made of fine particle dots, edges soft and blurred, with delicate metallic luster texture, clean frame without extra elements, minimalist high-end atmosphere, flowing deep future tech feel. 4K ultra HD, cinematic lighting, volumetric light, soft glow, no text no watermark, reserved blank area for product and brand logo, 16:9 aspect ratio.