Nano Banana Pro 结构化 JSON 肖像提示词

{ "prompt": "4K高清肖像，一位年轻女性，长发深色波浪卷，淡褐色眼睛，表情中性，直视镜头，身穿未扣纽扣的白色短袖翻领短款衬衫，深V领口，站在平滑的粉色摄影棚背景前。", "subject": { "gender": "女性", "hair": { "color": "深棕色", "style": "长发，中分，自然波浪松散地垂落在双肩" }, "facial_features": { "eyes": "淡褐色/浅棕色，直视镜头", "eyebrows": "自然眉形，深色", "skin": "白皙肤色，自然质感，细腻水润高光", "expression": "中性，放松，平静" }, "attire": { "top": "白色短袖翻领短款衬衫", "style": "深V领口，前襟未扣" } }, "setting": { "background": "纯色粉彩无缝摄影棚背景", "details": "右上角可见摄影棚设备边缘" }, "technical_details": { "shot_type": "中近景肖像", "framing": "居中，腰部以上构图", "lighting": "柔和漫射的摄影棚灯光，轻柔补光", "camera_settings": { "resolution": "4K UHD", "lens_type": "85mm人像镜头", "depth_of_field": "浅景深，主体对焦清晰，背景柔和虚化", "color_grade": "自然暖色调，干净粉彩对比" } } }