3D渲染极简风现代几何抽象白色立方体阶梯排列结构空

minimalist modern 3D rendered scene, three cube podiums of varying heights in the center, arranged in a descending staircase pattern from left to right, white and light gray color scheme, grid-patterned wall and floor background, clean and simple design, no decorative elements, no text, conveying a sense of minimalism and modernity