Integrationsguide för produktvideo

{
  "contents": [
    {
      "type": "ref_image",
      "url": "https://your-cdn.example/product.jpg"
    },
    {
      "type": "goods_title",
      "text": "你的商品或口播内容"
    }
  ],
  "settings": {
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "duration": 15
  },
  "async": true
}