蓝调时刻通勤者人像

生成一张 4:5 竖版蓝调时刻通勤者人像。中国年轻男性通勤者站在清晨蓝调时刻的露天地铁站台边，穿深灰风衣，背黑色无标识双肩包，手里拿一只无字保温杯，侧脸望向即将进站的模糊列车灯光。背景是蓝色天空、站台安全线和远处城市剪影，但所有标识牌都为空白或虚化不可读。构图为七分身环境肖像，人物在右侧，左侧留出站台轨道纵深。光线为清晨蓝光加列车暖白前灯，色调蓝灰、深灰、暖白。真实纪实摄影，50mm 镜头，人物比例真实。画面内不要出现任何可读文字、logo、水印、品牌、站名、车号或广告。

Create a 4:5 vertical blue-hour commuter portrait. A young Chinese male commuter stands on the edge of an outdoor metro platform during early-morning blue hour, wearing a dark gray trench coat and carrying a black unbranded backpack. He holds a text-free insulated cup and looks sideways toward the blurred headlights of an arriving train. The background has blue sky, platform safety line, and distant city silhouettes, while all signage is blank or blurred unreadable. Three-quarter environmental portrait, subject on the right, platform tracks extending into depth on the left. Lighting from morning blue ambient light plus warm-white train headlights; palette of blue-gray, dark gray, and warm white. Real documentary photography, 50mm lens, realistic proportions. No readable text, logo, watermark, brand, station name, train number, or advertisement anywhere.