Réseau vasculaire sablé du crâne

```json
{
  "project_settings": {
    "title": "医学可视化与艺术美学融合",
    "aspect_ratio": "16:9",
    "resolution": "8K",
    "color_profile": "Adobe RGB",
    "rendering_engine": "Path Tracing",
    "lighting_model": "Physically Based Rendering"
  },
  "object_treatment": {
    "base_object": "用户自定义对象",
    "material": {
      "surface": "磨砂玻璃半透明材质",
      "translucency": "精确控制的光线扩散",
      "reflectivity": "低反射率"
    },
    "vascular_system": {
      "structure": "连通的抽象血管网络",
      "color_scheme": ["#BED1E9", "#84AED2", "#8DBCE4"],
      "rendering": "精细的分支结构"
    }
  },
  "lighting_setup": {
    "primary": "物体内部柔辉",
    "secondary": "物体后方柔背光",
    "ambient": "环境漫反射光",
    "contour": "轮廓光增强表面阴影",
    "overall": "多源柔和照明"
  },
  "background": {
    "color": "#FEFEFE",
    "type": "绝对平坦",
    "properties": {
      "no_shadows": true,
      "no_gradations": true,
      "uniformity": "零色调差异"
    }
  },
  "shadow_handling": {
    "type": "表面轮廓阴影",
    "intensity": "增强对比",
    "location": "仅限物体表面",
    "color": "蓝色调"
  },
  "composition": {
    "framing": "完整物体居中展示",
    "spacing": "充足留白",
    "focus": "血管细节锐利",
    "angle": "最佳展示内部结构视角"
  },
  "style_aesthetics": {
    "mood": "临床科学与艺术空灵融合",
    "reference": ["医学影像", "科学插图", "3D可视化"],
    "quality": "高端医学可视化美学"
  },
  "technical_specifications": {
    "rendering": "逼真半透明材质与结构",
    "detail": "复杂血管网络可见",
    "color_accuracy": "精确浅蓝/紫pastel色调",
    "background_rendering": "完美超浅灰背景"
  },
  "constraints": {
    "mandatory": {
      "full_object_visibility": true,
      "specific_blues_only": true,
      "flat_background": true,
      "three_dimensional": true,
      "surface_shadows_only": true,
      "connected_veins": true,
      "internal_glow": true,
      "blue_shadows": true,
      "high_contrast": true
    },
    "forbidden": {
      "cropped_objects": true,
      "non_blues": true,
      "shadows_on_background": true,
      "hearts_inside": true,
      "non_translucent": true,
      "flat_2d": true,
      "low_depth": true,
      "disconnected_veins": true,
      "weak_shadows": true,
      "non_blue_shadows": true,
      "inconsistent_style": true
    }
  },
  "usage_notes": {
    "how_to_use": "修改USER_CUSTOMIZATION中的'object'字段",
    "compatible_objects": ["解剖部件", "植物", "果实", "贝壳", "晶体", "产品", "雕塑"],
    "always_includes": ["完整物体", "特定蓝色调", "平坦背景", "3D体积", "磨砂玻璃", "连通血管", "内部辉光"]
  }
}
```