极简平面设计风格的仙人掌插画

以极简平面设计风格绘制的仙人掌插画，仙人掌独自站立在干净的浅蓝色纯色背景正中央。运用基础造型与顺滑曲线，色彩为低饱和绿色。没有阴影或渐变，画面清晰简洁，传达宁静专注的氛围。整体视觉受到现代平面概念艺术启发。

AI art prompt English：

A minimalist flat design illustration of a cactus standing alone in the center of a clean solid light blue background. The cactus is drawn with basic shapes, smooth curves, and a muted green color. There are no shadows or gradients, and the illustration is crisp and simple, conveying calmness and focus. The visual style is inspired by modern flat conceptual art.