医生职业肖像

生成一张 4:5 竖版医生职业肖像。中国中年男医生穿干净白大褂站在医院诊室的检查台旁，一手拿听诊器，一手轻扶无字病历夹，神情温和可靠。背景有柔焦片灯、浅蓝隔帘、消毒柜和一盆小绿植，环境真实但整洁。光线为大面积柔和窗光加轻微冷色医疗环境光，色调白、浅蓝、浅木色，干净不冰冷。真实商业摄影，70mm 镜头，半身构图，皮肤自然、身材比例真实。画面内不要出现任何可读文字、logo、水印、医院名称、证件牌文字或品牌标识。

Create a 4:5 vertical professional doctor portrait. A middle-aged Chinese male doctor in a clean white coat stands beside an examination table in a medical consultation room, holding a stethoscope in one hand and a blank medical folder in the other, with a warm and trustworthy expression. Soft-focus examination lamp, pale blue curtain, sterilization cabinet, and a small plant in the background, realistic but tidy. Large soft window light mixed with a slight cool clinical ambience; white, pale blue, and light wood tones, clean but not cold. Real commercial photography, 70mm lens, half-body composition, natural skin, realistic body proportions. No readable text, logo, watermark, hospital name, badge text, or brand mark anywhere in the image.