戴红围巾的雪景冬日肖像

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_winter_snowfall_street_portrait",
      "priority": "highest",
      "language": "zh"
    },
    "global_constraints": {
      "no_logos": true,
      "no_watermark": true,
      "no_readable_text": true
    },
    "output_settings": {
      "aspect_ratio": "9:16",
      "orientation": "portrait",
      "render_style": "cinematic_photoreal_editorial",
      "film_grain": "subtle_35mm",
      "color_grade": "cold_winter_whites_soft_gray_blue_red_accent",
      "skin_rendering": "natural_texture_unretouched"
    },
    "creative_prompt": {
      "scene_summary": "大雪纷飞中的写实冬日肖像。极简的雪景背景，带着柔和雾气与低对比度的清冷冬日氛围。人物居中站立，神情平静略带忧郁，直视镜头。衣物和发丝上清晰凝结着雪花与白霜。",
      "subject": "一位面容柔和自然的成年女性，真实未经磨皮的皮肤质感，无美颜滤镜。",
      "wardrobe": "[black or charcoal]的深色冬季大衣，带有明显的落雪；脖颈缠绕醒目的红色粗织羊毛围巾；佩戴同色系红色毛绒冬帽，在清冷的色调中形成强烈的视觉视觉焦点。",
      "details": "风吹散的发丝轻拂脸庞，湿润的睫毛，被寒风轻微冻红的脸颊。前后景多层飘落的写实雪花，电影级浅景深。",
      "lighting": "阴天漫射冬日日光，柔和阴影，自然的动态范围，杂志级写实摄影质感。画面无任何文字。"
    },
    "negative_prompt": [
      "low resolution",
      "face distortion",
      "ai artifacts",
      "beauty filter",
      "plastic skin",
      "over-smoothing",
      "oversaturated red",
      "neon red",
      "hdr",
      "cartoon",
      "illustration",
      "anime",
      "logos",
      "text",
      "watermark",
      "blurry subject"
    ]
  }
}