四合院自然通風分析圖

Create one standalone 3:2 landscape image: an elegant architectural analysis sheet showing courtyard airflow, shade and seasonal sun paths around one axonometric model, no words. Visual approach: Cloudy diffuse light. Keep a single coherent scene with crisp material edges and believable spatial relationships. No collage, no grid, no logo, no watermark, and no readable text.

生成一張獨立的 3:2 橫幅影象：圍繞一個軸測院落模型展示氣流、遮陰與季節日照的建築分析圖，無文字。視覺方法採用陰天漫射光。保持單一連貫場景，材質邊緣清晰，空間關係可信；不要拼貼、網格、標誌、水印或可讀文字。