手套握把 + 每踩一下相機微抖 + 含「風／鏈條／輪胎／心跳」音效，第一人稱緊張感拉滿。
A first-person POV video of a mountain cyclist riding along a narrow glass walkway built on the edge of a high… [ ... 完整 prompt + 變數說明 + sample output 在原站 ]