Nano Banana Pro 室内温馨团体镜面自拍提示词

```json
{
  "photo_type": "镜面自拍（真实 iPhone 拍摄，室内暖光）",

  "subjects": {
    "count": 3,

    "faces": {
      "description": "使用 3 张上传的参考图片，保持身份精确，无平滑或重塑"
    },

    "pose_description": "中间人物手持手机进行镜面自拍，两位朋友略微靠后站在两侧，位置不完全对齐",

    "expressions": [
      "中间：俏皮表情，嘴巴微张",
      "左侧：轻微嘟嘴，放松",
      "右侧：自信中性表情"
    ],

    "body_language": [
      "自然姿态",
      "轻微不对称",
      "并非完美摆拍"
    ]
  },

  "clothing": {
    "details": [
      "中间：浅米色西装外套搭配同色上衣和裙子",
      "其他人：黑色服装",
      "可见真实的织物褶皱"
    ]
  },

  "lighting": {
    "type": "浴室室内照明",

    "setup": [
      "顶部暖光",
      "镜面反射光线",
      "面部亮度不均"
    ],

    "effects": [
      "额头轻微过曝",
      "下巴下方阴影",
      "色温变化",
      "光线不均匀"
    ],

    "color_temperature": "暖色 3200K"
  },

  "phone_capture": {
    "details": [
      "手中可见手机",
      "广角摄像头造成的轻微镜头畸变",
      "轻微透视拉伸",
      "真实手持构图"
    ]
  },

  "camera": {
    "type": "智能手机前置/后置摄像头",

    "lens": "26mm 广角",

    "settings": {
      "aperture": "f/1.8",
      "iso": "ISO 200-500",
      "shutter_speed": "1/50s"
    },

    "focus": "焦点略微不完美",

    "sensor_behavior": [
      "轻微颗粒感",
      "阴影噪点",
      "轻微柔和"
    ]
  },

  "skin_realism": {
    "details": [
      "可见毛孔",
      "自然光泽",
      "不均匀纹理",
      "微小瑕疵",
      "无修饰"
    ]
  },

  "hair": {
    "details": [
      "轻微毛躁",
      "散落发丝",
      "并非完美造型"
    ]
  },

  "background": {
    "setting": "浴室镜子",

    "details": [
      "暖色墙板",
      "镜面反射深度",
      "轻微模糊和噪点",
      "真实环境瑕疵"
    ]
  },

  "color_grading": {
    "style": "原始手机照片",

    "rules": [
      "无重度滤镜",
      "轻微黄色调",
      "自然对比度",
      "非电影感"
    ]
  },

  "imperfections": [
    "颗粒感",
    "光线不平衡",
    "轻微模糊",
    "镜头畸变"
  ],

  "composition": {
    "camera_angle": "手持镜面角度",
    "framing": "略微偏离中心",
    "depth": "所有人物可见，背景略微柔和"
  },

  "resolution_and_aspect_ratio": "4K, 4:5",

  "vibe": "真实的姐妹之夜自拍，随意，未经修饰的瞬间",

  "strict_rules": {
    "must_have": [
      "镜面自拍效果"
    ]
  }
}
```