蓝绿色订书机正面产品特写

产品静物摄影，正面特写，纯白无缝背景，一台蓝绿色金属订书机居中直立，竖幅近景，宽大方形底座，上端黑色矩形装订槽，中段黑色机芯与金属轴件，两侧竖向支架和铆钉，蓝绿色漆面可见划痕、掉漆和污渍，主体上方悬浮两个灰色U形线框，均匀柔和棚光，轻微阴影，冷色调，画幅约1:2竖向。

Product still-life photography, front close-up, seamless pure white background, a teal blue metal stapler standing upright in the center, vertical close-up composition, wide square base, black rectangular staple slot at the top, black mechanism and metal hinge parts in the middle, vertical side supports and rivets, scratched and chipped teal paint with visible wear and stains, two gray U-shaped bracket outlines floating above the stapler, even soft studio lighting, subtle shadows, cool color tone, vertical aspect ratio about 1:2.