{
  "model": "doubao-seedance-2-0-mini-260615",
  "content": [
    {
      "type": "text",
      "text": "固定镜头，浅色桌面上一只原创四叶纸风车。风车顺时针平稳转完一圈，回到首帧相同叶片角度。支杆与花盆完全静止，光线稳定，无新增物体，无相机推拉，无文字。首帧与尾帧采用上传的同一构图，动作在接点保持自然。\n"
    },
    {
      "type": "image_url",
      "image_url": {
        "url": "<image_url input; see input-provenance.json>"
      },
      "role": "first_frame"
    },
    {
      "type": "image_url",
      "image_url": {
        "url": "<image_url input; see input-provenance.json>"
      },
      "role": "last_frame"
    }
  ],
  "duration": 4,
  "resolution": "720p",
  "ratio": "16:9",
  "generate_audio": false
}