极简几何图形海报设计风格

仅使用简单的几何形状——圆形、矩形、三角形、圆弧和直线来描绘 [SUBJECT]。构图均衡，间距和谐，色调有限，阴影微妙，矢量边缘清晰，北欧风格极简主义，大量留白，纯白背景上的优雅现代海报设计。

Depict [SUBJECT] using only simple geometric forms – circles, rectangles, triangles, arcs, and straight lines. Balanced composition, harmonious spacing, limited color palette, subtle shadows, crisp vector edges, Scandinavian-inspired minimalism, abundant white space, elegant contemporary poster design on a pure white background.