本地库 + 火山任务接口
POST /api/v3/contents/generations/tasks
{ "model": "doubao-seedance-2-0-260128", "content": [ { "type": "text", "text": "一段电影感城市夜景航拍，霓虹灯反射在雨后街道上，镜头缓慢推进" } ], "ratio": "16:9", "duration": 5, "resolution": "720p", "generate_audio": true, "return_last_frame": false }