diff --git a/backend/ai_services/services.py b/backend/ai_services/services.py
index b7d43f7..223d876 100644
--- a/backend/ai_services/services.py
+++ b/backend/ai_services/services.py
@@ -89,32 +89,34 @@ class AliyunTingwuService:
         # 根据官方文档，离线任务的 type 通常就是 'offline'
         request.add_query_param('type', 'offline') 
         
-        # AppKey
-        request.add_query_param('AppKey', self.tingwu_app_key)
-        
-        # 配置 Input
-        input_param = {
-            "FileUrl": file_url,
-            "SourceLanguage": language,
-            "TaskKey": str(uuid.uuid4())
-        }
-        request.add_query_param('Input', json.dumps(input_param))
-        
-        # 配置 Parameters (开启自动章节和摘要)
-        parameters = {
-            "Transcoding": {
-                "TargetAudioFormat": "mp3"
+        # 构造请求体 (Body)
+        # 根据听悟 API 文档，AppKey, Input, Parameters 应位于 JSON Body 中
+        # 而不是 Query Parameter
+        body = {
+            "AppKey": self.tingwu_app_key,
+            "Input": {
+                "FileUrl": file_url,
+                "SourceLanguage": language,
+                "TaskKey": str(uuid.uuid4())
             },
-            "AutoChaptersEnabled": True,
-            "SummarizationEnabled": True 
+            "Parameters": {
+                "Transcoding": {
+                    "TargetAudioFormat": "mp3"
+                },
+                "AutoChaptersEnabled": True,
+                "SummarizationEnabled": True 
+            }
         }
-        request.add_query_param('Parameters', json.dumps(parameters))
+        
+        # 设置 Body 内容
+        request.set_content(json.dumps(body))
+        request.add_header('Content-Type', 'application/json')
         
         # 强制设置 Endpoint，避免 SDK.EndpointResolvingError
         # 听悟目前主要服务点在北京
         request.set_endpoint("tingwu.cn-beijing.aliyuncs.com")
 
-        # 显式设置 Method 为 POST，因为 SDK 默认可能是 PUT (针对 CreateTask)
+        # 显式设置 Method 为 PUT
         request.set_method('PUT')
 
         try:
diff --git a/backend/ai_services/views.py b/backend/ai_services/views.py
index 26e6230..c0fa5fa 100644
--- a/backend/ai_services/views.py
+++ b/backend/ai_services/views.py
@@ -102,7 +102,12 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
             # 3. 调用听悟接口创建任务
             try:
                 tingwu_response = service.create_transcription_task(oss_url)
-                task_id = tingwu_response.get('TaskId')
+                
+                # 兼容处理响应结构，通常为 {"Data": {"TaskId": "...", ...}}
+                if 'Data' in tingwu_response and isinstance(tingwu_response['Data'], dict):
+                    task_id = tingwu_response['Data'].get('TaskId')
+                else:
+                    task_id = tingwu_response.get('TaskId')
                 
                 if task_id:
                     task_record.task_id = task_id
@@ -152,13 +157,19 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
         service = AliyunTingwuService()
         try:
             result = service.get_task_info(task.task_id)
-            task_status = result.get('TaskStatus')
+            
+            # 兼容处理响应结构 {"Data": {"TaskStatus": "...", "Result": ...}}
+            data_obj = result.get('Data', result)
+            if not isinstance(data_obj, dict):
+                data_obj = result
+            
+            task_status = data_obj.get('TaskStatus')
             
             if task_status == 'COMPLETE':
                 task.status = TranscriptionTask.Status.SUCCEEDED
                 
                 # 解析结果
-                task_result = result.get('Result', {})
+                task_result = data_obj.get('Result', {})
                 
                 # 提取逐字稿
                 sentences = task_result.get('Transcription', {}).get('Sentences', [])
@@ -190,7 +201,7 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
 
             elif task_status == 'FAILED':
                 task.status = TranscriptionTask.Status.FAILED
-                task.error_message = result.get('TaskStatusText', 'Unknown error')
+                task.error_message = data_obj.get('TaskStatusText', result.get('Message', 'Unknown error'))
                 task.save()
             
             # 其他状态 (PENDING, RUNNING) 不做更改