偏離中心閃光街拍肖像生成器

```json
{
  "type": "portrait_generation_parameters",
  "version": "1.3",
  "style_preset": "Off-Center Composition / Flash Street Snap",
  "parameters": {
    "subject_description": {
      "base": "一位可愛、時尚且鏡頭感十足的年輕女性。",
      "user_portrait_slot": "{User Portrait}",
      "facial_expression": "帶著俏皮的微笑，明亮的眼睛直視鏡頭。",
      "head_direction": "頭部微傾並稍微轉向右側。"
    },
    "apparel_and_outfit": {
      "base": "高級時裝街頭風格。",
      "outfit_slot": "{Apparel/Outfit}",
      "styling_notes": "服裝應具有動感和質感，適合充滿活力的街拍。"
    },
    "pose_and_action": {
      "leg_position": "雙腿緊密併攏，膝蓋略微向內彎曲，一隻腳稍微向前。",
      "body_orientation": "身體前傾並向畫面右側傾斜。",
      "hands": "雙手放在大腿上以支撐傾斜的姿勢。",
      "overall_dynamic": "一個可愛、年輕的站姿，看起來自然且充滿活力。"
    },
    "composition": {
      "framing": "中等全身照。",
      "visual_balance": "偏離中心的構圖。主體位於畫面**左三分之一處**（三分法構圖）。",
      "directional_flow": "主體的身體和視線從左側指向右側（進入負空間）。",
      "camera_angle": "視線水平或略低角度，以突顯腿部。"
    },
    "lighting": {
      "type": "直射機頂閃光燈（夜晚）。",
      "characteristics": "強烈、直射的閃光燈照亮主體，與較暗的街景背景形成鮮明對比。",
      "shadows": "主體後方有明顯的硬質陰影。"
    },
    "environment": {
      "setting": "城市夜間街道。右側的空白空間展現出模糊的城市燈光和街道細節。",
      "atmosphere": "隨性、自然、粗獷但時尚。"
    },
    "color_palette": {
      "style": "Fujifilm Classic Negative (NC)。",
      "tones": "背景為憂鬱的冷色調，皮膚上有溫暖的閃光燈色調。高對比度。"
    },
    "negative_prompt": [
      "置中",
      "置中主體",
      "雙腿分開",
      "寬闊站姿",
      "直腿",
      "看向左邊",
      "身體朝左",
      "糟糕的解剖結構",
      "扭曲的手",
      "手指缺失",
      "模糊的臉",
      "平淡的燈光"
    ]
  }
}
```