青铜双耳圆形器盖俯视

白底文物静物摄影，正上方俯视一枚圆形青铜器盖，完整居中构图，4:3横画幅。器盖呈暗褐色与墨绿色铜锈，表面有斑驳包浆、细密划痕和岁月磨损痕迹。外缘为宽厚圆环，中央有隆起圆形钮座与同心圆凹槽，左右两侧各有一个弧形宽耳把手。纯白无缝背景，均匀柔光，低反差，轻微金属反光，真实材质细节，考古记录式写实风格，无人物、无文字、无投影。

Top-down overhead museum artifact photograph of a circular ancient bronze vessel lid, centered full-object composition, 4:3 landscape aspect ratio. The lid shows dark brown and dark green bronze patina, mottled aging, fine scratches, and worn surface texture. A thick circular rim surrounds a raised central round knob plate with concentric grooves; one curved wide handle loop is attached on each side. Seamless pure white background, even soft lighting, low contrast, subtle metallic reflection, realistic material detail, archaeological documentary still-life style, no people, no text, no shadow.