{
  "overall_score": 85,
  "pass": false,
  "issues": [
    {
      "page": 23,
      "issue_type": "readability",
      "severity": "medium",
      "suggestion": "原图彩色注意力可视化转为黑白后对比度差，不同注意力头难以区分。建议添加灰度区分或图案填充来标识不同注意力头，或增加图例说明关键颜色对应的含义。"
    },
    {
      "page": 24,
      "issue_type": "readability",
      "severity": "medium",
      "suggestion": "原图彩色注意力可视化转为黑白后线条区分度低。建议使用不同线型（实线/虚线/点线）或线宽来区分不同注意力头，确保黑白打印下仍能清晰识别关键依赖关系。"
    }
  ]
}