渐变风2025科技展会场景宣传插画素材

8K ultra-clear simple background design, with a gradual background from dark green to light green, a circular halo effect in the center, and fine line textures around it. There is a line of white text 2025 Belt and Road Shadi-China Vision Forum in the center of the picture. The font is simple and modern, accounting for about a quarter of the picture there is a line of smaller blue text International Vision Integrate Global Shared Future at the bottom. The font is slim and coordinated with the background tone. The overall design is simple and full of technological sense, conveying the theme, sense of future and mysterious atmosphere of the impact of technology on life.