女孩穿著灰色連帽上衣和短褲，走上公寓樓間的濕階梯，以 Nano Banana Pro 拍出自然抓拍感

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"meta": {
    "aspect_ratio": "9:16",
    "quality": "超寫實",
    "resolution": "8k",
    "camera": "iPhone 後置相機",
    "lens": "26mm",
    "style": "原始 iPhone 隨手拍真實感，輕微動態模糊，自然肌膚質感，無美顏濾鏡"
  },

  "scene": {
    "location": "公寓大樓之間的戶外混凝土樓梯間",
    "environment": [
      "設有金屬扶手的寬敞混凝土階梯",
      "油漆剝落且貼有老舊警告標誌的牆面",
      "隨意放在階梯上的小盆栽",
      "暗示有城市噪音，但看不到任何人"
    ],
    "time": "雨後，傍晚時分",
    "atmosphere": "出乎意料、貼近真實生活、略帶風險的公私交界時刻"
  },

  "lighting": {
    "type": "自然陰天光 + 反射光",
    "source": "雨後的多雲天空",
    "effect": [
      "柔和的漫射光",
      "濕潤的混凝土將光線向上反射",
      "勾勒臀部與大腿的自然陰影"
    ]
  },

  "camera_perspective": {
    "pov": "第三人稱隨手拍（朋友在後方行走）",
    "angle": "從低一階的位置以低角度跟拍",
    "framing": "下背部與臀部佔據畫面主體，上半身部分轉向",
    "distance": "約 1 公尺",
    "imperfections": [
      "手持晃動",
      "邊緣輕微模糊",
      "偏離中心的構圖"
    ]
  },

  "subject": {
    "gender": "女性",
    "ethnicity": "白皙膚色、混合歐洲血統",
    "vibe": "年輕成年人，毫不在意的自信，自然移動",

    "body": {
      "type": "勻稱豐滿",
      "waist": "纖細",
      "hips": "圓潤豐滿",
      "glutes": "受到階梯角度的強調",
      "legs": "大腿較粗，可見肌肉張力",
      "chest": "豐滿但居於次要位置"
    },

    "skin": {
      "tone": "明亮暖色調",
      "texture": "真實肌膚質感，帶有些微濕氣光澤"
    },

    "hair": {
      "color": "淺棕色",
      "style": "凌亂半紮髮",
      "details": "走路時飄動的鬆散髮絲"
    },

    "face": {
      "expression": "中性表情，回頭時略帶不耐的眼神",
      "eyes": "從肩膀上方回望鏡頭",
      "makeup": "淡妝、自然"
    },

    "outfit": {
      "top": {
        "type": "寬鬆短版連帽上衣",
        "color": "洗舊灰",
        "fit": "手臂部位寬鬆，軀幹部位偏短，未穿胸罩"
      },
      "bottom": {
        "type": "超短運動短褲",
        "length": "勉強遮住大腿上部",
        "material": "薄而有彈性的布料",
        "fit": "貼身，因動作而略微往上縮",
        "details": [
          "布料在大腿內側聚成皺褶",
          "沒有可見標誌"
        ]
      },
      "shoes": {
        "type": "穿舊的白色運動鞋",
        "detail": "被雨水弄得有些髒"
      }
    },

    "pose": {
      "action": "走上樓梯",
      "hips": "跨步中自然擺動",
      "legs": "一隻腳抬向下一階",
      "upper_body": "軀幹微微向後扭轉

"meta": {
    "aspect_ratio": "9:16",
    "quality": "ultra_photorealistic",
    "resolution": "8k",
    "camera": "iPhone rear camera",
    "lens": "26mm",
    "style": "raw iPhone candid realism, slight motion blur, natural skin texture, no beauty filter"
  },

  "scene": {
    "location": "outdoor concrete stairwell between apartment buildings",
    "environment": [
      "wide concrete stairs with metal handrail",
      "paint-chipped walls with old warning signs",
      "small potted plants left randomly on steps",
      "city noise implied but no people visible"
    ],
    "time": "after rain, early evening",
    "atmosphere": "unexpected, real-life, slightly risky public-private moment"
  },

  "lighting": {
    "type": "natural overcast + reflected light",
    "source": "cloudy sky after rain",
    "effect": [
      "soft diffused light",
      "wet concrete reflecting light upward",
      "natural shadows defining hips and thighs"
    ]
  },

  "camera_perspective": {
    "pov": "third-person candid (friend walking behind)",
    "angle": "low-follow angle from one step below",
    "framing": "lower back and hips dominant, upper body partially turned",
    "distance": "about 1 meter",
    "imperfections": [
      "handheld shake",
      "slight blur on edges",
      "off-center framing"
    ]
  },

  "subject": {
    "gender": "female",
    "ethnicity": "light-skinned mixed european",
    "vibe": "young adult, unbothered confidence, moving naturally",

    "body": {
      "type": "fit-curvy",
      "waist": "tight",
      "hips": "round and full",
      "glutes": "accentuated by stair angle",
      "legs": "thick thighs, visible muscle tension",
      "chest": "full but secondary"
    },

    "skin": {
      "tone": "light warm",
      "texture": "real skin texture, slight humidity sheen"
    },

    "hair": {
      "color": "light brown",
      "style": "half-up messy tie",
      "details": "loose strands moving while walking"
    },

    "face": {
      "expression": "neutral, slightly annoyed glance back",
      "eyes": "looking over shoulder at camera",
      "makeup": "minimal, natural"
    },

    "outfit": {
      "top": {
        "type": "oversized cropped hoodie",
        "color": "washed grey",
        "fit": "loose on arms, short on torso, no bra"
      },
      "bottom": {
        "type": "ultra-short athletic shorts",
        "length": "barely covering upper thighs",
        "material": "thin stretchy fabric",
        "fit": "tight, riding slightly due to movement",
        "details": [
          "fabric bunching at inner thighs",
          "no visible logos"
        ]
      },
      "shoes": {
        "type": "worn white sneakers",
        "detail": "slightly dirty from rain"
      }
    },

    "pose": {
      "action": "walking up stairs",
      "hips": "naturally swaying mid-step",
      "legs": "one foot lifted to next step",
      "upper_body": "torso slightly twisted bac