90 年代自拍情緒網格與身份鎖定

```json
{
  "request_metadata": {
    "model": "Nano Banana Pro",
    "content_type": "photorealistic_90s_selfie_emotion_grid",
    "quality_preset": "ultra",
    "format_aspect_ratio": "1:1",
    "output": "3x3_grid"
  },
  "layout": {
    "type": "3x3_grid",
    "description": "所有 9 個畫面都是同一個人。保持身份鎖定。相同的房間、相同的窗簾背景、相同的服裝、相同的燈光。每個畫面只改變面部表情/情緒 + 微手勢。",
    "frame_labels": [
      "1) 撩人地咬唇 + 眨眼",
      "2) 開心微笑",
      "3) 生氣",
      "4) 哭泣",
      "5) 飛吻",
      "6) 調皮地眨眼",
      "7) 驚訝",
      "8) 嚴肅/中性",
      "9) 竊笑/自信"
    ]
  },
  "source": {
    "mode": "image_reference",
    "reference_images": {
      "primary": "base_person_image"
    },
    "preserve": {
      "same_person": true,
      "identity_lock": true,
      "keep_face": true,
      "keep_hair": true,
      "keep_outfit": true,
      "keep_skin_tone": true,
      "keep_freckles": true,
      "keep_eye_color": true,
      "keep_earrings": true
    }
  },
  "global_scene": {
    "shot_type": "特寫自拍肖像",
    "camera_pose": "右手拿著相機自拍，手臂略微向前",
    "body_pose": "身體略微向右傾斜",
    "environment": "一個房間，背景是灰白色窗簾，柔和的失焦褶皺",
    "lighting": {
      "type": "自然窗光",
      "direction": "前方",
      "quality": "柔和但明亮",
      "notes": "所有 9 個畫面保持一致；畫面之間無燈光變化"
    },
    "style": {
      "look": "90 年代相機自拍",
      "grain": "細微的底片顆粒",
      "flash_feel": "輕微的機上閃光感（柔和的爆閃，不刺眼）",
      "realism": "真實的隨性寫實感"
    },
    "quality": {
      "detail": "高細節",
      "skin_texture": "自然肌膚紋理，毛孔可見，逼真的雀斑",
      "retouching": "最少；避免平滑/美顏濾鏡"
    },
    "composition_lock": {
      "keep_framing": true,
      "keep_camera_distance": true,
      "keep_head_position": "只允許微小變化",
      "keep_background": true
    }
  },
  "subject": {
    "gender": "女性",
    "age_group": "年輕成人",
    "identity": "與參考圖完全相同的臉（不要改變面部結構、眼睛、鼻子、嘴唇、下顎線）",
    "hair": "深棕色帶挑染，高位凌亂髮髻，瀏海環繞額頭",
    "accessories": "鑽石圈形耳環",
    "skin_details": "鼻子和顴骨周圍有雀斑",
    "makeup": {
      "style": "自然",
      "blush": "淡粉色腮紅",
      "eyeliner": "清晰的貓眼線",
      "lashes": "捲翹睫毛",
      "lip": "光澤裸色唇彩",
      "eyes": "棕綠色眼睛"
    },
    "outfit": "無肩帶黑色針織迷你洋裝"
  },
  "frames": [
    {
      "id": 1,
      "emotion": "調情",
      "expression_action": "咬食指"
    }
  ]
}
```