汽车品牌人物写真

生成一张 4:5 竖版汽车品牌人物写真。中国男性车主穿黑色皮夹克和灰色针织衫，站在现代地下车库的一辆无品牌深银色轿跑旁，手里拿着无标识车钥匙，另一只手轻扶车门边，表情冷静自信。车头和车牌位置不可出现任何 logo、文字或数字，车身只呈现流线和灯光反射。背景有线性顶灯、混凝土墙、湿润地面反光，色调深银、黑、冷白灯和少量红色尾灯。真实商业汽车摄影，50mm 镜头，半身到七分身构图，人物和车比例真实。画面内不要出现任何可读文字、logo、水印、车牌、真实车标或品牌标识。

Create a 4:5 vertical automotive brand lifestyle portrait. A Chinese male car owner in a black leather jacket and gray knit sweater stands beside an unbranded deep-silver coupe in a modern underground garage, holding an unmarked car key while the other hand rests lightly on the door edge, calm and confident. The front and plate areas must contain no logo, text, or numbers; the car should show only flowing lines and light reflections. Linear ceiling lights, concrete walls, wet floor reflections, deep silver, black, cool white light, and small red taillight accents. Real commercial automotive photography, 50mm lens, half-body to three-quarter composition, realistic person and car proportions. No readable text, logo, watermark, license plate, real car mark, or brand mark anywhere in the image.