木赛道弯角上的骑行瞬间

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.

一位成年骑手穿素海军蓝骑行服、戴头盔，倾身通过室内木质自行车赛道弯角，双手握下把、双脚踩踏板。运动摄影，骑手清晰，背景少量动感虚化，侧视角，车架三角结构和两个圆车轮准确，没有标志。 方形1:1独立完整成图。不要文字、标志、水印、边框、多格排版或联系表。