洞穴氣候的粉筆分析圖

Create one standalone 3:2 landscape image: a blackboard-style diagram of airflow, humidity and cave chambers drawn with white and muted blue chalk, symbols only, no readable words. Visual approach: Cold and warm complement each other. 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：用白色與灰藍粉筆繪製洞穴氣流、溼度和洞室關係，只用符號，不出現可讀文字。視覺方法採用冷暖互補。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。