diff --git a/fastapi_server.py b/fastapi_server.py
index 3680cd3..a853f96 100644
--- a/fastapi_server.py
+++ b/fastapi_server.py
@@ -1104,8 +1104,40 @@ async def run_api_tests(config: TestConfig):
         report_directory_path = (Path(REPORTS_DIR) / report_id).resolve()
 
         # Prepare config
-        config_dict = config.dict()
-        mode = config_dict.pop('mode')
+        if hasattr(config, "model_dump"):
+            raw_config = config.model_dump(exclude_none=True)
+        else:
+            raw_config = config.dict(exclude_none=True)
+
+        mode = raw_config.pop('mode')
+
+        hidden_defaults = {
+            "categories": [],
+            "tags": [],
+            "ignore_ssl": True,
+            "output": "./test_reports",
+            "generate_pdf": True,
+            "custom_test_cases_dir": "./custom_testcases",
+            "stages_dir": "./custom_stages",
+            "llm_api_key": "sk-lbGrsUPL1iby86h554FaE536C343435dAa9bA65967A840B2",
+            "llm_base_url": "https://aiproxy.petrotech.cnpc/v1",
+            "llm_model_name": "deepseek-v3",
+            "use_llm_for_request_body": False,
+            "use_llm_for_path_params": False,
+            "use_llm_for_query_params": False,
+            "use_llm_for_headers": False,
+            "verbose": False
+        }
+
+        config_dict = {**hidden_defaults, **raw_config}
+
+        for default_path_key in ("custom_test_cases_dir", "stages_dir"):
+            default_path = config_dict.get(default_path_key)
+            if default_path:
+                try:
+                    Path(default_path).mkdir(parents=True, exist_ok=True)
+                except Exception as path_error:
+                    logger.warning(f"无法创建默认目录 {default_path}: {path_error}")
 
         # Set file paths based on mode
         if mode == 'yapi':