curl --request POST \
  --url https://api.evolink.ai/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kling-custom-element",
  "model_params": {
    "element_name": "我的角色",
    "element_description": "一个短发年轻男性角色，穿着白色T恤",
    "reference_type": "image_refer",
    "element_image_list": {
      "frontal_image": "https://example.com/front.jpg",
      "refer_images": [
        {
          "image_url": "https://example.com/side.jpg"
        }
      ]
    }
  }
}
'