{
  "task_id": "collect_trending_videos_1777383798",
  "collection_type": "trending_videos",
  "collected_at": "2026-04-28T21:43:28.783619",
  "videos": [
    {
      "material_id": "video_20260428_214328_1",
      "title": "AI绘画实战教程",
      "content": "详细讲解如何使用AI工具进行绘画创作...",
      "source": "bilibili",
      "tags": [
        "AI绘画",
        "教程",
        "实战"
      ],
      "relevance_score": 0.9,
      "quality_score": 0.82
    }
  ]
}