diff --git a/src/services/verification_service.py b/src/services/verification_service.py
index 1c80064..0e5c0ac 100644
--- a/src/services/verification_service.py
+++ b/src/services/verification_service.py
@@ -62,6 +62,7 @@ class GeometryVerificationService:
         """运行验证脚本"""
         import tempfile
         import os
+        import shutil
         
         # 确保 stp_path 是字符串
         stp_path_str = str(stp_path)
@@ -74,51 +75,22 @@ class GeometryVerificationService:
             # 构建命令 - 使用 FreeCAD 命令行模式
             cmd = None
             
-            # 尝试多种 FreeCAD 命令名称
-            # AppImage 版本使用 freecad
-            # PPA 版本通常使用 freecadcmd
-            for cmd_name in ['freecad', 'freecadcmd', 'freecad-cmd', '/usr/local/bin/freecad', '/usr/bin/freecad', '/snap/bin/freecad.cmd']:
-                try:
-                    result = subprocess.run(['which', cmd_name], capture_output=True, text=True)
-                    if result.returncode == 0 and result.stdout.strip():
-                        # FreeCAD 1.0 直接执行脚本，不需要 -c 参数
-                        cmd = [cmd_name, str(self.verification_script), str(Path(stp_path_str).absolute())]
-                        logger.info(f"找到 FreeCAD 命令: {cmd_name}")
-                        break
-                except:
-                    pass
+            # 使用 shutil.which 查找 FreeCAD 命令（更快）
+            for cmd_name in ['freecad', 'freecadcmd', 'freecad-cmd']:
+                cmd_path = shutil.which(cmd_name)
+                if cmd_path:
+                    cmd = [cmd_path, str(self.verification_script), str(Path(stp_path_str).absolute())]
+                    logger.info(f"找到 FreeCAD 命令: {cmd_path}")
+                    break
             
             # 如果 which 找不到，尝试直接检查常见路径
             if not cmd:
                 for cmd_path in ['/usr/local/bin/freecad', '/usr/bin/freecad', '/usr/local/bin/freecadcmd', '/usr/bin/freecadcmd', '/snap/bin/freecad.cmd']:
                     if Path(cmd_path).exists():
-                        # FreeCAD 1.0 直接执行脚本，不需要 -c 参数
                         cmd = [cmd_path, str(self.verification_script), str(Path(stp_path_str).absolute())]
                         logger.info(f"找到 FreeCAD 命令路径: {cmd_path}")
                         break
             
-            # 尝试2: freecad with offscreen
-            if not cmd:
-                try:
-                    result = subprocess.run(['which', 'freecad'], capture_output=True, text=True)
-                    if result.returncode == 0:
-                        cmd = [
-                            'env', 'QT_QPA_PLATFORM=offscreen',
-                            'freecad', '-c',
-                            str(self.verification_script), str(Path(stp_path_str).absolute())
-                        ]
-                except:
-                    pass
-            
-            # 尝试3: 使用 xvfb-run
-            if not cmd:
-                try:
-                    result = subprocess.run(['which', 'xvfb-run'], capture_output=True, text=True)
-                    if result.returncode == 0:
-                        cmd = ['xvfb-run', 'freecad', '-c', str(self.verification_script), str(Path(stp_path_str).absolute())]
-                except:
-                    pass
-            
             if not cmd:
                 logger.warning("FreeCAD 命令行工具不可用，跳过验证")
                 return {
@@ -137,29 +109,34 @@ class GeometryVerificationService:
             env = os.environ.copy()
             env['QT_QPA_PLATFORM'] = 'offscreen'
             env['DISPLAY'] = ''
+            env['FREECAD_USER_HOME'] = '/tmp/freecad_home'
+            
+            logger.info(f"工作目录: {stp_dir}")
+            logger.info(f"STP 文件: {stp_abs_path}")
+            logger.info(f"验证脚本: {self.verification_script}")
             
             # 异步运行子进程
             process = await asyncio.create_subprocess_exec(
                 *cmd,
                 stdout=asyncio.subprocess.PIPE,
                 stderr=asyncio.subprocess.PIPE,
-                cwd=str(stp_dir),  # 在 STP 文件所在目录运行
+                cwd=str(stp_dir),
                 env=env
             )
             
-            # 增加超时时间到 300 秒（5分钟）
+            # 30秒超时
             try:
                 stdout, stderr = await asyncio.wait_for(
                     process.communicate(),
-                    timeout=300.0
+                    timeout=30.0
                 )
             except asyncio.TimeoutError:
-                logger.error("验证脚本执行超时（300秒）")
+                logger.error("验证脚本执行超时（30秒）")
                 process.kill()
                 await process.wait()
                 return {
                     "status": "error",
-                    "error": "验证脚本执行超时（300秒）",
+                    "error": "验证脚本执行超时（30秒）",
                     "timestamp": datetime.now().isoformat()
                 }