红色塑料部件底部金属圆钮特写

写实微距产品摄影，横向超宽构图，正对拍摄白色背景上的红色矩形塑料部件底部。红色外壳为哑光塑料，表面有轻微磨损和细划痕；下方边缘伸出一条较窄的红色轨条，轨条上分布若干浅白色小矩形标记；中央偏下位置嵌有一个圆形银色金属端盖或旋钮，边缘有同心圆纹路和暗色凹槽。无人物、无文字，环境为纯净白色，柔和均匀的漫射光，物体占满画面，画幅约 3:1，高清产品特写。

Realistic macro product photography, ultra-wide horizontal composition, straight-on view of the underside of a red rectangular plastic component on a pure white background. The red housing is matte plastic with light scuffs and fine scratches; along the lower edge extends a narrower red rail with small pale rectangular tabs or markings; near the lower center is a circular silver metal end cap or knob with concentric ridges and a dark recessed slot. No people, no text, clean white environment, soft even diffuse lighting, subject fills the frame, aspect ratio about 3:1, high-definition product close-up.