蓝色时刻，屋顶上直闪拍摄的真情之吻

```json
{
  "generation_request": {
    "meta_data": {
      "task_type": "photoreal_candid_rooftop_flash_romance",
      "language": "zh-Hans",
      "priority": "highest",
      "version": "v1.0_BLUEHOUR_ROOFTOP_FLASH_KISS"
    },
    "output": {
      "aspect_ratio": "4:5",
      "resolution": "high",
      "num_images": 4
    },
    "scene": {
      "concept": "一张在蓝调时刻用直射闪光灯拍摄的梦幻屋顶浪漫快照",
      "environment": "公寓屋顶阳台，带有金属栏杆，背景是城市建筑，窗户透出温暖的灯光，黄昏天空带有微弱的日落渐变",
      "composition": "全身或 3/4 身人像，情侣居中，栏杆可见，背景柔和模糊"
    },
    "subject": {
      "couple": "成年女性和成年男性",
      "wardrobe": {
        "woman": "淡黄色缎面吊带裙，带有光泽感，小巧的白色单肩包，极简首饰",
        "man": "黑色西装配白衬衫"
      },
      "pose": "女性面向镜头，带着温柔的微笑；男性亲吻她的太阳穴/脸颊，同时搂着她的腰；女性的手放在他的脖子/脸颊上",
      "expression": "亲密、平静、浪漫",
      "details": "手部和首饰干净自然；没有不自然的指头摆放"
    },
    "camera": {
      "shot": "抓拍人像，3/4 身",
      "lens_mm": 35,
      "aperture": 2.0,
      "focus": "面部和手部清晰；窗户背景虚化",
      "quality_tags": "超写实、逼真的皮肤纹理、微妙的胶片颗粒、边缘清晰带有柔和高光光晕"
    },
    "lighting": {
      "style": "机顶闪光灯 + 黄昏环境光",
      "key_light": "相机位置的直射闪光灯，光线自然衰减",
      "ambient": "蓝调时刻的天空补光和温暖的窗户光斑",
      "notes": "避免缎面过曝；保持光晕/光环微妙，不要模糊"
    },
    "color_grade": {
      "palette": "冷调黄昏蓝 + 温暖窗户光 + 淡黄色缎面",
      "contrast": "电影感闪光对比度，高光平滑过渡",
      "tone": "梦幻而真实"
    },
    "negative_prompt": "文字、标志、水印、模糊的面部、双重面部、变形的手、多余的手指、塑料皮肤、CGI、卡通、刺眼的闪光、严重模糊、过度锐化光晕、低分辨率、噪点伪影"
  }
}
```