木賽道彎角上的騎行瞬間

An adult cyclist in a plain navy racing kit and helmet leaning through a wooden indoor velodrome bend, both hands on drop bars, both feet on pedals. Sports photograph with sharp rider and restrained background motion blur, side view, accurate bicycle triangles and two circular wheels, no logos. Square 1:1 standalone finished image. No text, logos, watermark, border, multi-panel layout or contact sheet.

一位成年騎手穿素海軍藍騎行服、戴頭盔，傾身透過室內木質腳踏車賽道彎角，雙手握下把、雙腳踩踏板。運動攝影，騎手清晰，背景少量動感虛化，側視角，車架三角結構和兩個圓車輪準確，沒有標誌。 方形1:1獨立完整成圖。不要文字、標誌、水印、邊框、多格排版或聯絡表。