diff --git a/backend/apps/asset/views.py b/backend/apps/asset/views.py
index 51b6d393..771921b8 100644
--- a/backend/apps/asset/views.py
+++ b/backend/apps/asset/views.py
@@ -164,12 +164,13 @@ class SubdomainViewSet(viewsets.ModelViewSet):
         
         响应:
         {
-            "message": "批量创建完成",
-            "createdCount": 10,
-            "skippedCount": 2,
-            "invalidCount": 1,
-            "mismatchedCount": 1,
-            "totalReceived": 14
+            "data": {
+                "createdCount": 10,
+                "skippedCount": 2,
+                "invalidCount": 1,
+                "mismatchedCount": 1,
+                "totalReceived": 14
+            }
         }
         """
         from apps.targets.models import Target
@@ -220,12 +221,13 @@ class SubdomainViewSet(viewsets.ModelViewSet):
             )
         
         return Response({
-            'message': '批量创建完成',
-            'createdCount': result.created_count,
-            'skippedCount': result.skipped_count,
-            'invalidCount': result.invalid_count,
-            'mismatchedCount': result.mismatched_count,
-            'totalReceived': result.total_received,
+            'data': {
+                'createdCount': result.created_count,
+                'skippedCount': result.skipped_count,
+                'invalidCount': result.invalid_count,
+                'mismatchedCount': result.mismatched_count,
+                'totalReceived': result.total_received,
+            }
         }, status=status.HTTP_200_OK)
 
     @action(detail=False, methods=['get'], url_path='export')
@@ -299,9 +301,9 @@ class WebSiteViewSet(viewsets.ModelViewSet):
         
         响应:
         {
-            "message": "批量创建完成",
-            "createdCount": 10,
-            "mismatchedCount": 2
+            "data": {
+                "createdCount": 10
+            }
         }
         """
         from apps.targets.models import Target
@@ -346,8 +348,9 @@ class WebSiteViewSet(viewsets.ModelViewSet):
             )
         
         return Response({
-            'message': '批量创建完成',
-            'createdCount': created_count,
+            'data': {
+                'createdCount': created_count,
+            }
         }, status=status.HTTP_200_OK)
 
     @action(detail=False, methods=['get'], url_path='export')
@@ -426,9 +429,9 @@ class DirectoryViewSet(viewsets.ModelViewSet):
         
         响应:
         {
-            "message": "批量创建完成",
-            "createdCount": 10,
-            "mismatchedCount": 2
+            "data": {
+                "createdCount": 10
+            }
         }
         """
         from apps.targets.models import Target
@@ -473,8 +476,9 @@ class DirectoryViewSet(viewsets.ModelViewSet):
             )
         
         return Response({
-            'message': '批量创建完成',
-            'createdCount': created_count,
+            'data': {
+                'createdCount': created_count,
+            }
         }, status=status.HTTP_200_OK)
 
     @action(detail=False, methods=['get'], url_path='export')
@@ -553,9 +557,9 @@ class EndpointViewSet(viewsets.ModelViewSet):
         
         响应:
         {
-            "message": "批量创建完成",
-            "createdCount": 10,
-            "mismatchedCount": 2
+            "data": {
+                "createdCount": 10
+            }
         }
         """
         from apps.targets.models import Target
@@ -600,8 +604,9 @@ class EndpointViewSet(viewsets.ModelViewSet):
             )
         
         return Response({
-            'message': '批量创建完成',
-            'createdCount': created_count,
+            'data': {
+                'createdCount': created_count,
+            }
         }, status=status.HTTP_200_OK)
 
     @action(detail=False, methods=['get'], url_path='export')
diff --git a/backend/apps/common/error_codes.py b/backend/apps/common/error_codes.py
new file mode 100644
index 00000000..bf8eb827
--- /dev/null
+++ b/backend/apps/common/error_codes.py
@@ -0,0 +1,31 @@
+"""
+标准化错误码定义
+
+采用简化方案（参考 Stripe、GitHub 等大厂做法）：
+- 只定义 5-10 个通用错误码
+- 未知错误使用通用错误码
+- 错误码格式：大写字母和下划线组成
+"""
+
+
+class ErrorCodes:
+    """标准化错误码
+    
+    只定义通用错误码，其他错误使用通用消息。
+    这是 Stripe、GitHub 等大厂的标准做法。
+    
+    错误码格式规范：
+    - 使用大写字母和下划线
+    - 简洁明了，易于理解
+    - 前端通过错误码映射到 i18n 键
+    """
+    
+    # 通用错误码（8 个）
+    VALIDATION_ERROR = 'VALIDATION_ERROR'      # 输入验证失败
+    NOT_FOUND = 'NOT_FOUND'                    # 资源未找到
+    PERMISSION_DENIED = 'PERMISSION_DENIED'    # 权限不足
+    SERVER_ERROR = 'SERVER_ERROR'              # 服务器内部错误
+    BAD_REQUEST = 'BAD_REQUEST'                # 请求格式错误
+    CONFLICT = 'CONFLICT'                      # 资源冲突（如重复创建）
+    UNAUTHORIZED = 'UNAUTHORIZED'              # 未认证
+    RATE_LIMITED = 'RATE_LIMITED'              # 请求过于频繁
diff --git a/backend/apps/common/response_helpers.py b/backend/apps/common/response_helpers.py
new file mode 100644
index 00000000..e9973286
--- /dev/null
+++ b/backend/apps/common/response_helpers.py
@@ -0,0 +1,93 @@
+"""
+标准化 API 响应辅助函数
+
+遵循行业标准（RFC 9457 Problem Details）和大厂实践（Google、Stripe、GitHub）：
+- 成功响应只包含数据，不包含 message 字段
+- 错误响应使用机器可读的错误码，前端映射到 i18n 消息
+"""
+from typing import Any, Dict, List, Optional, Union
+
+from rest_framework import status
+from rest_framework.response import Response
+
+
+def success_response(
+    data: Optional[Union[Dict[str, Any], List[Any]]] = None,
+    meta: Optional[Dict[str, Any]] = None,
+    status_code: int = status.HTTP_200_OK
+) -> Response:
+    """
+    标准化成功响应
+    
+    Args:
+        data: 响应数据（dict 或 list）
+        meta: 元数据（如 count、total、page）
+        status_code: HTTP 状态码，默认 200
+    
+    Returns:
+        Response: DRF Response 对象
+    
+    Examples:
+        # 单个资源
+        >>> success_response(data={'id': 1, 'name': 'Test'})
+        {'data': {'id': 1, 'name': 'Test'}}
+        
+        # 列表资源带分页
+        >>> success_response(data=[...], meta={'total': 100, 'page': 1})
+        {'data': [...], 'meta': {'total': 100, 'page': 1}}
+        
+        # 创建资源
+        >>> success_response(data={'id': 1}, status_code=201)
+    """
+    response_body: Dict[str, Any] = {}
+    
+    if data is not None:
+        response_body['data'] = data
+    
+    if meta is not None:
+        response_body['meta'] = meta
+    
+    return Response(response_body, status=status_code)
+
+
+def error_response(
+    code: str,
+    message: Optional[str] = None,
+    details: Optional[List[Dict[str, Any]]] = None,
+    status_code: int = status.HTTP_400_BAD_REQUEST
+) -> Response:
+    """
+    标准化错误响应
+    
+    Args:
+        code: 错误码（如 'VALIDATION_ERROR', 'NOT_FOUND'）
+              格式：大写字母和下划线组成
+        message: 开发者调试信息（非用户显示）
+        details: 详细错误信息（如字段级验证错误）
+        status_code: HTTP 状态码，默认 400
+    
+    Returns:
+        Response: DRF Response 对象
+    
+    Examples:
+        # 简单错误
+        >>> error_response(code='NOT_FOUND', status_code=404)
+        {'error': {'code': 'NOT_FOUND'}}
+        
+        # 带调试信息
+        >>> error_response(
+        ...     code='VALIDATION_ERROR',
+        ...     message='Invalid input data',
+        ...     details=[{'field': 'name', 'message': 'Required'}]
+        ... )
+        {'error': {'code': 'VALIDATION_ERROR', 'message': '...', 'details': [...]}}
+    """
+    error_body: Dict[str, Any] = {'code': code}
+    
+    if message:
+        error_body['message'] = message
+    
+    if details:
+        error_body['details'] = details
+    
+    return Response({'error': error_body}, status=status_code)
diff --git a/backend/apps/common/views/auth_views.py b/backend/apps/common/views/auth_views.py
index 4504d653..5378b437 100644
--- a/backend/apps/common/views/auth_views.py
+++ b/backend/apps/common/views/auth_views.py
@@ -11,6 +11,9 @@ from rest_framework.views import APIView
 from rest_framework.response import Response
 from rest_framework.permissions import AllowAny, IsAuthenticated
 
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
+
 logger = logging.getLogger(__name__)
 
 
@@ -28,9 +31,10 @@ class LoginView(APIView):
         password = request.data.get('password')
         
         if not username or not password:
-            return Response(
-                {'error': '请提供用户名和密码'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Username and password are required',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         user = authenticate(request, username=username, password=password)
@@ -38,20 +42,22 @@ class LoginView(APIView):
         if user is not None:
             login(request, user)
             logger.info(f"用户 {username} 登录成功")
-            return Response({
-                'message': '登录成功',
-                'user': {
-                    'id': user.id,
-                    'username': user.username,
-                    'isStaff': user.is_staff,
-                    'isSuperuser': user.is_superuser,
+            return success_response(
+                data={
+                    'user': {
+                        'id': user.id,
+                        'username': user.username,
+                        'isStaff': user.is_staff,
+                        'isSuperuser': user.is_superuser,
+                    }
                 }
-            })
+            )
         else:
             logger.warning(f"用户 {username} 登录失败：用户名或密码错误")
-            return Response(
-                {'error': '用户名或密码错误'},
-                status=status.HTTP_401_UNAUTHORIZED
+            return error_response(
+                code=ErrorCodes.UNAUTHORIZED,
+                message='Invalid username or password',
+                status_code=status.HTTP_401_UNAUTHORIZED
             )
 
 
@@ -79,7 +85,7 @@ class LogoutView(APIView):
                 logout(request)
         else:
             logout(request)
-        return Response({'message': '已登出'})
+        return success_response()
 
 
 @method_decorator(csrf_exempt, name='dispatch')
@@ -100,22 +106,26 @@ class MeView(APIView):
         if user_id:
             try:
                 user = User.objects.get(pk=user_id)
-                return Response({
-                    'authenticated': True,
-                    'user': {
-                        'id': user.id,
-                        'username': user.username,
-                        'isStaff': user.is_staff,
-                        'isSuperuser': user.is_superuser,
+                return success_response(
+                    data={
+                        'authenticated': True,
+                        'user': {
+                            'id': user.id,
+                            'username': user.username,
+                            'isStaff': user.is_staff,
+                            'isSuperuser': user.is_superuser,
+                        }
                     }
-                })
+                )
             except User.DoesNotExist:
                 pass
         
-        return Response({
-            'authenticated': False,
-            'user': None
-        })
+        return success_response(
+            data={
+                'authenticated': False,
+                'user': None
+            }
+        )
 
 
 @method_decorator(csrf_exempt, name='dispatch')
@@ -134,17 +144,19 @@ class ChangePasswordView(APIView):
         
         user_id = request.session.get('_auth_user_id')
         if not user_id:
-            return Response(
-                {'error': '请先登录'},
-                status=status.HTTP_401_UNAUTHORIZED
+            return error_response(
+                code=ErrorCodes.UNAUTHORIZED,
+                message='Please login first',
+                status_code=status.HTTP_401_UNAUTHORIZED
             )
         
         try:
             user = User.objects.get(pk=user_id)
         except User.DoesNotExist:
-            return Response(
-                {'error': '用户不存在'},
-                status=status.HTTP_401_UNAUTHORIZED
+            return error_response(
+                code=ErrorCodes.UNAUTHORIZED,
+                message='User does not exist',
+                status_code=status.HTTP_401_UNAUTHORIZED
             )
         
         # CamelCaseParser 将 oldPassword -> old_password
@@ -152,15 +164,17 @@ class ChangePasswordView(APIView):
         new_password = request.data.get('new_password')
         
         if not old_password or not new_password:
-            return Response(
-                {'error': '请提供旧密码和新密码'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Old password and new password are required',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         if not user.check_password(old_password):
-            return Response(
-                {'error': '旧密码错误'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Old password is incorrect',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         user.set_password(new_password)
@@ -170,4 +184,4 @@ class ChangePasswordView(APIView):
         update_session_auth_hash(request, user)
         
         logger.info(f"用户 {user.username} 已修改密码")
-        return Response({'message': '密码修改成功'})
+        return success_response()
diff --git a/backend/apps/common/views/system_log_views.py b/backend/apps/common/views/system_log_views.py
index d476b518..9f0bbcf9 100644
--- a/backend/apps/common/views/system_log_views.py
+++ b/backend/apps/common/views/system_log_views.py
@@ -13,6 +13,8 @@ from rest_framework.permissions import AllowAny
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 from apps.common.services.system_log_service import SystemLogService
 
 
@@ -61,9 +63,17 @@ class SystemLogsView(APIView):
 
             # 调用服务获取日志内容
             content = self.service.get_logs_content(lines=lines)
-            return Response({"content": content})
+            return success_response(data={"content": content})
         except ValueError:
-            return Response({"error": "lines 参数必须是整数"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='lines must be an integer',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
         except Exception:
             logger.exception("获取系统日志失败")
-            return Response({"error": "获取系统日志失败"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Failed to get system logs',
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
diff --git a/backend/apps/engine/views/nuclei_template_repo_views.py b/backend/apps/engine/views/nuclei_template_repo_views.py
index 803fa84f..61067e8c 100644
--- a/backend/apps/engine/views/nuclei_template_repo_views.py
+++ b/backend/apps/engine/views/nuclei_template_repo_views.py
@@ -31,6 +31,8 @@ from rest_framework.decorators import action
 from rest_framework.request import Request
 from rest_framework.response import Response
 
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 from apps.engine.models import NucleiTemplateRepo
 from apps.engine.serializers import NucleiTemplateRepoSerializer
 from apps.engine.services import NucleiTemplateRepoService
@@ -107,18 +109,30 @@ class NucleiTemplateRepoViewSet(viewsets.ModelViewSet):
         try:
             repo_id = int(pk) if pk is not None else None
         except (TypeError, ValueError):
-            return Response({"message": "无效的仓库 ID"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Invalid repository ID',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         # 调用 Service 层
         try:
             result = self.service.refresh_repo(repo_id)
         except ValidationError as exc:
-            return Response({"message": str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(exc),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
         except Exception as exc:  # noqa: BLE001
             logger.error("刷新 Nuclei 模板仓库失败: %s", exc, exc_info=True)
-            return Response({"message": f"刷新仓库失败: {exc}"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message=f'Refresh failed: {exc}',
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
 
-        return Response({"message": "刷新成功", "result": result}, status=status.HTTP_200_OK)
+        return success_response(data={'result': result})
 
     # ==================== 自定义 Action: 模板只读浏览 ====================
 
@@ -142,18 +156,30 @@ class NucleiTemplateRepoViewSet(viewsets.ModelViewSet):
         try:
             repo_id = int(pk) if pk is not None else None
         except (TypeError, ValueError):
-            return Response({"message": "无效的仓库 ID"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Invalid repository ID',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         # 调用 Service 层，仅从当前本地目录读取目录树
         try:
             roots = self.service.get_template_tree(repo_id)
         except ValidationError as exc:
-            return Response({"message": str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(exc),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
         except Exception as exc:  # noqa: BLE001
             logger.error("获取 Nuclei 模板目录树失败: %s", exc, exc_info=True)
-            return Response({"message": "获取模板目录树失败"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Failed to get template tree',
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
 
-        return Response({"roots": roots})
+        return success_response(data={'roots': roots})
 
     @action(detail=True, methods=["get"], url_path="templates/content")
     def templates_content(self, request: Request, pk: str | None = None) -> Response:
@@ -174,23 +200,43 @@ class NucleiTemplateRepoViewSet(viewsets.ModelViewSet):
         try:
             repo_id = int(pk) if pk is not None else None
         except (TypeError, ValueError):
-            return Response({"message": "无效的仓库 ID"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Invalid repository ID',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         # 解析 path 参数
         rel_path = (request.query_params.get("path", "") or "").strip()
         if not rel_path:
-            return Response({"message": "缺少 path 参数"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Missing path parameter',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         # 调用 Service 层
         try:
             result = self.service.get_template_content(repo_id, rel_path)
         except ValidationError as exc:
-            return Response({"message": str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(exc),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
         except Exception as exc:  # noqa: BLE001
             logger.error("获取 Nuclei 模板内容失败: %s", exc, exc_info=True)
-            return Response({"message": "获取模板内容失败"}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Failed to get template content',
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
 
         # 文件不存在
         if result is None:
-            return Response({"message": "模板不存在或无法读取"}, status=status.HTTP_404_NOT_FOUND)
-        return Response(result)
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message='Template not found or unreadable',
+                status_code=status.HTTP_404_NOT_FOUND
+            )
+        return success_response(data=result)
diff --git a/backend/apps/engine/views/wordlist_views.py b/backend/apps/engine/views/wordlist_views.py
index 4ac47759..213239b9 100644
--- a/backend/apps/engine/views/wordlist_views.py
+++ b/backend/apps/engine/views/wordlist_views.py
@@ -9,6 +9,8 @@ from rest_framework.decorators import action
 from rest_framework.response import Response
 
 from apps.common.pagination import BasePagination
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 from apps.engine.serializers.wordlist_serializer import WordlistSerializer
 from apps.engine.services.wordlist_service import WordlistService
 
@@ -46,7 +48,11 @@ class WordlistViewSet(viewsets.ViewSet):
         uploaded_file = request.FILES.get("file")
 
         if not uploaded_file:
-            return Response({"error": "缺少字典文件"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Missing wordlist file',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         try:
             wordlist = self.service.create_wordlist(
@@ -55,21 +61,32 @@ class WordlistViewSet(viewsets.ViewSet):
                 uploaded_file=uploaded_file,
             )
         except ValidationError as exc:
-            return Response({"error": str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(exc),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         serializer = WordlistSerializer(wordlist)
-        return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return success_response(data=serializer.data, status_code=status.HTTP_201_CREATED)
 
     def destroy(self, request, pk=None):
         """删除字典记录"""
         try:
             wordlist_id = int(pk)
         except (TypeError, ValueError):
-            return Response({"error": "无效的 ID"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Invalid ID',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         success = self.service.delete_wordlist(wordlist_id)
         if not success:
-            return Response({"error": "字典不存在"}, status=status.HTTP_404_NOT_FOUND)
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                status_code=status.HTTP_404_NOT_FOUND
+            )
 
         return Response(status=status.HTTP_204_NO_CONTENT)
 
@@ -82,15 +99,27 @@ class WordlistViewSet(viewsets.ViewSet):
         """
         name = (request.query_params.get("wordlist", "") or "").strip()
         if not name:
-            return Response({"error": "缺少参数 wordlist"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Missing parameter: wordlist',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         wordlist = self.service.get_wordlist_by_name(name)
         if not wordlist:
-            return Response({"error": "字典不存在"}, status=status.HTTP_404_NOT_FOUND)
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message='Wordlist not found',
+                status_code=status.HTTP_404_NOT_FOUND
+            )
 
         file_path = wordlist.file_path
         if not file_path or not os.path.exists(file_path):
-            return Response({"error": "字典文件不存在"}, status=status.HTTP_404_NOT_FOUND)
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message='Wordlist file not found',
+                status_code=status.HTTP_404_NOT_FOUND
+            )
 
         filename = os.path.basename(file_path)
         response = FileResponse(open(file_path, "rb"), as_attachment=True, filename=filename)
@@ -106,22 +135,38 @@ class WordlistViewSet(viewsets.ViewSet):
         try:
             wordlist_id = int(pk)
         except (TypeError, ValueError):
-            return Response({"error": "无效的 ID"}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Invalid ID',
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
 
         if request.method == "GET":
             content = self.service.get_wordlist_content(wordlist_id)
             if content is None:
-                return Response({"error": "字典不存在或文件无法读取"}, status=status.HTTP_404_NOT_FOUND)
-            return Response({"content": content})
+                return error_response(
+                    code=ErrorCodes.NOT_FOUND,
+                    message='Wordlist not found or file unreadable',
+                    status_code=status.HTTP_404_NOT_FOUND
+                )
+            return success_response(data={"content": content})
 
         elif request.method == "PUT":
             content = request.data.get("content")
             if content is None:
-                return Response({"error": "缺少 content 参数"}, status=status.HTTP_400_BAD_REQUEST)
+                return error_response(
+                    code=ErrorCodes.VALIDATION_ERROR,
+                    message='Missing content parameter',
+                    status_code=status.HTTP_400_BAD_REQUEST
+                )
 
             wordlist = self.service.update_wordlist_content(wordlist_id, content)
             if not wordlist:
-                return Response({"error": "字典不存在或更新失败"}, status=status.HTTP_404_NOT_FOUND)
+                return error_response(
+                    code=ErrorCodes.NOT_FOUND,
+                    message='Wordlist not found or update failed',
+                    status_code=status.HTTP_404_NOT_FOUND
+                )
 
             serializer = WordlistSerializer(wordlist)
-            return Response(serializer.data)
+            return success_response(data=serializer.data)
diff --git a/backend/apps/engine/views/worker_views.py b/backend/apps/engine/views/worker_views.py
index fedfcfc1..88900af3 100644
--- a/backend/apps/engine/views/worker_views.py
+++ b/backend/apps/engine/views/worker_views.py
@@ -9,6 +9,8 @@ from rest_framework import viewsets, status
 from rest_framework.decorators import action
 from rest_framework.response import Response
 
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 from apps.engine.serializers import WorkerNodeSerializer
 from apps.engine.services import WorkerService
 from apps.common.signals import worker_delete_failed
@@ -111,9 +113,8 @@ class WorkerNodeViewSet(viewsets.ModelViewSet):
         threading.Thread(target=_async_remote_uninstall, daemon=True).start()
         
         # 3. 立即返回成功
-        return Response(
-            {"message": f"节点 {worker_name} 已删除"},
-            status=status.HTTP_200_OK
+        return success_response(
+            data={'name': worker_name}
         )
     
     @action(detail=True, methods=['post'])
@@ -190,11 +191,13 @@ class WorkerNodeViewSet(viewsets.ModelViewSet):
                     worker.status = 'online'
                     worker.save(update_fields=['status'])
         
-        return Response({
-            'status': 'ok',
-            'need_update': need_update,
-            'server_version': server_version
-        })
+        return success_response(
+            data={
+                'status': 'ok',
+                'needUpdate': need_update,
+                'serverVersion': server_version
+            }
+        )
     
     def _trigger_remote_agent_update(self, worker, target_version: str):
         """
@@ -304,9 +307,10 @@ class WorkerNodeViewSet(viewsets.ModelViewSet):
         is_local = request.data.get('is_local', True)
         
         if not name:
-            return Response(
-                {'error': '缺少 name 参数'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Missing name parameter',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         worker, created = self.worker_service.register_worker(
@@ -314,11 +318,13 @@ class WorkerNodeViewSet(viewsets.ModelViewSet):
             is_local=is_local
         )
         
-        return Response({
-            'worker_id': worker.id,
-            'name': worker.name,
-            'created': created
-        })
+        return success_response(
+            data={
+                'workerId': worker.id,
+                'name': worker.name,
+                'created': created
+            }
+        )
     
     @action(detail=False, methods=['get'])
     def config(self, request):
@@ -380,24 +386,26 @@ class WorkerNodeViewSet(viewsets.ModelViewSet):
         
         logger.info("返回 Worker 配置 - db_host: %s, redis_url: %s", worker_db_host, worker_redis_url)
         
-        return Response({
-            'db': {
-                'host': worker_db_host,
-                'port': str(settings.DATABASES['default']['PORT']),
-                'name': settings.DATABASES['default']['NAME'],
-                'user': settings.DATABASES['default']['USER'],
-                'password': settings.DATABASES['default']['PASSWORD'],
-            },
-            'redisUrl': worker_redis_url,
-            'paths': {
-                'results': getattr(settings, 'CONTAINER_RESULTS_MOUNT', '/opt/xingrin/results'),
-                'logs': getattr(settings, 'CONTAINER_LOGS_MOUNT', '/opt/xingrin/logs'),
-            },
-            'logging': {
-                'level': os.getenv('LOG_LEVEL', 'INFO'),
-                'enableCommandLogging': os.getenv('ENABLE_COMMAND_LOGGING', 'true').lower() == 'true',
-            },
-            'debug': settings.DEBUG,
-            # Git 加速配置（用于 Git clone 加速，如 Nuclei 模板仓库）
-            'gitMirror': settings.GIT_MIRROR,
-        })
+        return success_response(
+            data={
+                'db': {
+                    'host': worker_db_host,
+                    'port': str(settings.DATABASES['default']['PORT']),
+                    'name': settings.DATABASES['default']['NAME'],
+                    'user': settings.DATABASES['default']['USER'],
+                    'password': settings.DATABASES['default']['PASSWORD'],
+                },
+                'redisUrl': worker_redis_url,
+                'paths': {
+                    'results': getattr(settings, 'CONTAINER_RESULTS_MOUNT', '/opt/xingrin/results'),
+                    'logs': getattr(settings, 'CONTAINER_LOGS_MOUNT', '/opt/xingrin/logs'),
+                },
+                'logging': {
+                    'level': os.getenv('LOG_LEVEL', 'INFO'),
+                    'enableCommandLogging': os.getenv('ENABLE_COMMAND_LOGGING', 'true').lower() == 'true',
+                },
+                'debug': settings.DEBUG,
+                # Git 加速配置（用于 Git clone 加速，如 Nuclei 模板仓库）
+                'gitMirror': settings.GIT_MIRROR,
+            }
+        )
diff --git a/backend/apps/scan/notifications/views.py b/backend/apps/scan/notifications/views.py
index 73a7109d..af0775c8 100644
--- a/backend/apps/scan/notifications/views.py
+++ b/backend/apps/scan/notifications/views.py
@@ -14,6 +14,8 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from apps.common.pagination import BasePagination
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 from .models import Notification
 from .serializers import NotificationSerializer
 from .types import NotificationLevel
@@ -60,34 +62,7 @@ def notifications_test(request):
         }, status=500)
 
 
-def build_api_response(
-    data: Any = None,
-    *,
-    message: str = '操作成功',
-    code: str = '200',
-    state: str = 'success',
-    status_code: int = status.HTTP_200_OK
-) -> Response:
-    """构建统一的 API 响应格式
-    
-    Args:
-        data: 响应数据体（可选）
-        message: 响应消息
-        code: 响应代码
-        state: 响应状态（success/error）
-        status_code: HTTP 状态码
-        
-    Returns:
-        DRF Response 对象
-    """
-    payload = {
-        'code': code,
-        'state': state,
-        'message': message,
-    }
-    if data is not None:
-        payload['data'] = data
-    return Response(payload, status=status_code)
+# build_api_response 已废弃，请使用 success_response/error_response
 
 
 def _parse_bool(value: str | None) -> bool | None:
@@ -172,7 +147,7 @@ class NotificationUnreadCountView(APIView):
         """获取未读通知数量"""
         service = NotificationService()
         count = service.get_unread_count()
-        return build_api_response({'count': count}, message='获取未读数量成功')
+        return success_response(data={'count': count})
 
 
 class NotificationMarkAllAsReadView(APIView):
@@ -192,7 +167,7 @@ class NotificationMarkAllAsReadView(APIView):
         """标记全部通知为已读"""
         service = NotificationService()
         updated = service.mark_all_as_read()
-        return build_api_response({'updated': updated}, message='全部标记已读成功')
+        return success_response(data={'updated': updated})
 
 
 class NotificationSettingsView(APIView):
@@ -209,13 +184,13 @@ class NotificationSettingsView(APIView):
         """获取通知设置"""
         service = NotificationSettingsService()
         settings = service.get_settings()
-        return Response(settings)
+        return success_response(data=settings)
     
     def put(self, request: Request) -> Response:
         """更新通知设置"""
         service = NotificationSettingsService()
         settings = service.update_settings(request.data)
-        return Response({'message': '已保存通知设置', **settings})
+        return success_response(data=settings)
 
 
 # ============================================
@@ -247,22 +222,24 @@ def notification_callback(request):
         required_fields = ['id', 'category', 'title', 'message', 'level', 'created_at']
         for field in required_fields:
             if field not in data:
-                return Response(
-                    {'error': f'缺少字段: {field}'},
-                    status=status.HTTP_400_BAD_REQUEST
+                return error_response(
+                    code=ErrorCodes.VALIDATION_ERROR,
+                    message=f'Missing field: {field}',
+                    status_code=status.HTTP_400_BAD_REQUEST
                 )
         
         # 推送到 WebSocket
         _push_notification_to_websocket(data)
         
         logger.debug(f"回调通知推送成功 - ID: {data['id']}, Title: {data['title']}")
-        return Response({'status': 'ok'})
+        return success_response(data={'status': 'ok'})
         
     except Exception as e:
         logger.error(f"回调通知处理失败: {e}", exc_info=True)
-        return Response(
-            {'error': str(e)},
-            status=status.HTTP_500_INTERNAL_SERVER_ERROR
+        return error_response(
+            code=ErrorCodes.SERVER_ERROR,
+            message=str(e),
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
         )
 
 
diff --git a/backend/apps/scan/views/scan_views.py b/backend/apps/scan/views/scan_views.py
index 4cf60cc1..a9b7fac8 100644
--- a/backend/apps/scan/views/scan_views.py
+++ b/backend/apps/scan/views/scan_views.py
@@ -7,6 +7,9 @@ from django.core.exceptions import ObjectDoesNotExist, ValidationError
 from django.db.utils import DatabaseError, IntegrityError, OperationalError
 import logging
 
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
+
 logger = logging.getLogger(__name__)
 
 from ..models import Scan, ScheduledScan
@@ -75,20 +78,31 @@ class ScanViewSet(viewsets.ModelViewSet):
             scan_service = ScanService()
             result = scan_service.delete_scans_two_phase([scan.id])
             
-            return Response({
-                'message': f'已删除扫描任务: Scan #{scan.id}',
-                'scanId': scan.id,
-                'deletedCount': result['soft_deleted_count'],
-                'deletedScans': result['scan_names']
-            }, status=status.HTTP_200_OK)
+            return success_response(
+                data={
+                    'scanId': scan.id,
+                    'deletedCount': result['soft_deleted_count'],
+                    'deletedScans': result['scan_names']
+                }
+            )
             
         except Scan.DoesNotExist:
-            raise NotFound('扫描任务不存在')
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                status_code=status.HTTP_404_NOT_FOUND
+            )
         except ValueError as e:
-            raise NotFound(str(e))
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message=str(e),
+                status_code=status.HTTP_404_NOT_FOUND
+            )
         except Exception as e:
             logger.exception("删除扫描任务时发生错误")
-            raise APIException('服务器错误，请稍后重试')
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
     
     @action(detail=False, methods=['post'])
     def quick(self, request):
@@ -132,10 +146,12 @@ class ScanViewSet(viewsets.ModelViewSet):
             targets = result['targets']
             
             if not targets:
-                return Response({
-                    'error': '没有有效的目标可供扫描',
-                    'errors': result.get('errors', [])
-                }, status=status.HTTP_400_BAD_REQUEST)
+                return error_response(
+                    code=ErrorCodes.VALIDATION_ERROR,
+                    message='No valid targets for scanning',
+                    details=result.get('errors', []),
+                    status_code=status.HTTP_400_BAD_REQUEST
+                )
             
             # 2. 获取扫描引擎
             engine_service = EngineService()
@@ -153,21 +169,28 @@ class ScanViewSet(viewsets.ModelViewSet):
             # 序列化返回结果
             scan_serializer = ScanSerializer(created_scans, many=True)
             
-            return Response({
-                'message': f'快速扫描已启动：{len(created_scans)} 个任务',
-                'target_stats': result['target_stats'],
-                'asset_stats': result['asset_stats'],
-                'errors': result.get('errors', []),
-                'scans': scan_serializer.data
-            }, status=status.HTTP_201_CREATED)
+            return success_response(
+                data={
+                    'count': len(created_scans),
+                    'targetStats': result['target_stats'],
+                    'assetStats': result['asset_stats'],
+                    'errors': result.get('errors', []),
+                    'scans': scan_serializer.data
+                },
+                status_code=status.HTTP_201_CREATED
+            )
             
         except ValidationError as e:
-            return Response({'error': str(e)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(e),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
         except Exception as e:
             logger.exception("快速扫描启动失败")
-            return Response(
-                {'error': '服务器内部错误，请稍后重试'},
-                status=status.HTTP_500_INTERNAL_SERVER_ERROR
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
             )
 
     @action(detail=False, methods=['post'])
@@ -208,35 +231,36 @@ class ScanViewSet(viewsets.ModelViewSet):
             # 序列化返回结果
             scan_serializer = ScanSerializer(created_scans, many=True)
             
-            return Response(
-                {
-                    'message': f'已成功发起 {len(created_scans)} 个扫描任务',
+            return success_response(
+                data={
                     'count': len(created_scans),
                     'scans': scan_serializer.data
                 },
-                status=status.HTTP_201_CREATED
+                status_code=status.HTTP_201_CREATED
             )
             
         except ObjectDoesNotExist as e:
             # 资源不存在错误（由 service 层抛出）
-            error_msg = str(e)
-            return Response(
-                {'error': error_msg},
-                status=status.HTTP_404_NOT_FOUND
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message=str(e),
+                status_code=status.HTTP_404_NOT_FOUND
             )
         
         except ValidationError as e:
             # 参数验证错误（由 service 层抛出）
-            return Response(
-                {'error': str(e)},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(e),
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         except (DatabaseError, IntegrityError, OperationalError):
             # 数据库错误
-            return Response(
-                {'error': '数据库错误，请稍后重试'},
-                status=status.HTTP_503_SERVICE_UNAVAILABLE
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Database error',
+                status_code=status.HTTP_503_SERVICE_UNAVAILABLE
             )
 
     # 所有快照相关的 action 和 export 已迁移到 asset/views.py 中的快照 ViewSet
@@ -278,21 +302,24 @@ class ScanViewSet(viewsets.ModelViewSet):
         
         # 参数验证
         if not ids:
-            return Response(
-                {'error': '缺少必填参数: ids'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='Missing required parameter: ids',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         if not isinstance(ids, list):
-            return Response(
-                {'error': 'ids 必须是数组'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='ids must be an array',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         if not all(isinstance(i, int) for i in ids):
-            return Response(
-                {'error': 'ids 数组中的所有元素必须是整数'},
-                status=status.HTTP_400_BAD_REQUEST
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message='All elements in ids array must be integers',
+                status_code=status.HTTP_400_BAD_REQUEST
             )
         
         try:
@@ -300,19 +327,27 @@ class ScanViewSet(viewsets.ModelViewSet):
             scan_service = ScanService()
             result = scan_service.delete_scans_two_phase(ids)
             
-            return Response({
-                'message': f"已删除 {result['soft_deleted_count']} 个扫描任务",
-                'deletedCount': result['soft_deleted_count'],
-                'deletedScans': result['scan_names']
-            }, status=status.HTTP_200_OK)
+            return success_response(
+                data={
+                    'deletedCount': result['soft_deleted_count'],
+                    'deletedScans': result['scan_names']
+                }
+            )
             
         except ValueError as e:
             # 未找到记录
-            raise NotFound(str(e))
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message=str(e),
+                status_code=status.HTTP_404_NOT_FOUND
+            )
             
         except Exception as e:
             logger.exception("批量删除扫描任务时发生错误")
-            raise APIException('服务器错误，请稍后重试')
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
     
     @action(detail=False, methods=['get'])
     def statistics(self, request):
@@ -337,22 +372,25 @@ class ScanViewSet(viewsets.ModelViewSet):
             scan_service = ScanService()
             stats = scan_service.get_statistics()
             
-            return Response({
-                'total': stats['total'],
-                'running': stats['running'],
-                'completed': stats['completed'],
-                'failed': stats['failed'],
-                'totalVulns': stats['total_vulns'],
-                'totalSubdomains': stats['total_subdomains'],
-                'totalEndpoints': stats['total_endpoints'],
-                'totalWebsites': stats['total_websites'],
-                'totalAssets': stats['total_assets'],
-            })
+            return success_response(
+                data={
+                    'total': stats['total'],
+                    'running': stats['running'],
+                    'completed': stats['completed'],
+                    'failed': stats['failed'],
+                    'totalVulns': stats['total_vulns'],
+                    'totalSubdomains': stats['total_subdomains'],
+                    'totalEndpoints': stats['total_endpoints'],
+                    'totalWebsites': stats['total_websites'],
+                    'totalAssets': stats['total_assets'],
+                }
+            )
         
         except (DatabaseError, OperationalError):
-            return Response(
-                {'error': '数据库错误，请稍后重试'},
-                status=status.HTTP_503_SERVICE_UNAVAILABLE
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Database error',
+                status_code=status.HTTP_503_SERVICE_UNAVAILABLE
             )
     
     @action(detail=True, methods=['post'])
@@ -383,35 +421,31 @@ class ScanViewSet(viewsets.ModelViewSet):
                 # 检查是否是状态不允许的问题
                 scan = scan_service.get_scan(scan_id=pk, prefetch_relations=False)
                 if scan and scan.status not in [ScanStatus.RUNNING, ScanStatus.INITIATED]:
-                    return Response(
-                        {
-                            'error': f'无法停止扫描：当前状态为 {ScanStatus(scan.status).label}',
-                            'detail': '只能停止运行中或初始化状态的扫描'
-                        },
-                        status=status.HTTP_400_BAD_REQUEST
+                    return error_response(
+                        code=ErrorCodes.BAD_REQUEST,
+                        message=f'Cannot stop scan: current status is {ScanStatus(scan.status).label}',
+                        status_code=status.HTTP_400_BAD_REQUEST
                     )
                 # 其他失败原因
-                return Response(
-                    {'error': '停止扫描失败'},
-                    status=status.HTTP_500_INTERNAL_SERVER_ERROR
+                return error_response(
+                    code=ErrorCodes.SERVER_ERROR,
+                    status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
                 )
             
-            return Response(
-                {
-                    'message': f'扫描已停止，已撤销 {revoked_count} 个任务',
-                    'revokedTaskCount': revoked_count
-                },
-                status=status.HTTP_200_OK
+            return success_response(
+                data={'revokedTaskCount': revoked_count}
             )
         
         except ObjectDoesNotExist:
-            return Response(
-                {'error': f'扫描 ID {pk} 不存在'},
-                status=status.HTTP_404_NOT_FOUND
+            return error_response(
+                code=ErrorCodes.NOT_FOUND,
+                message=f'Scan ID {pk} not found',
+                status_code=status.HTTP_404_NOT_FOUND
             )
         
         except (DatabaseError, IntegrityError, OperationalError):
-            return Response(
-                {'error': '数据库错误，请稍后重试'},
-                status=status.HTTP_503_SERVICE_UNAVAILABLE
+            return error_response(
+                code=ErrorCodes.SERVER_ERROR,
+                message='Database error',
+                status_code=status.HTTP_503_SERVICE_UNAVAILABLE
             )
diff --git a/backend/apps/scan/views/scheduled_scan_views.py b/backend/apps/scan/views/scheduled_scan_views.py
index 900ab8eb..664229ad 100644
--- a/backend/apps/scan/views/scheduled_scan_views.py
+++ b/backend/apps/scan/views/scheduled_scan_views.py
@@ -18,6 +18,8 @@ from ..serializers import (
 from ..services.scheduled_scan_service import ScheduledScanService
 from ..repositories import ScheduledScanDTO
 from apps.common.pagination import BasePagination
+from apps.common.response_helpers import success_response, error_response
+from apps.common.error_codes import ErrorCodes
 
 
 logger = logging.getLogger(__name__)
@@ -75,15 +77,16 @@ class ScheduledScanViewSet(viewsets.ModelViewSet):
             scheduled_scan = self.service.create(dto)
             response_serializer = ScheduledScanSerializer(scheduled_scan)
             
-            return Response(
-                {
-                    'message': f'创建定时扫描任务成功: {scheduled_scan.name}',
-                    'scheduled_scan': response_serializer.data
-                },
-                status=status.HTTP_201_CREATED
+            return success_response(
+                data=response_serializer.data,
+                status_code=status.HTTP_201_CREATED
             )
         except ValidationError as e:
-            return Response({'error': str(e)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(e),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
     
     def update(self, request, *args, **kwargs):
         """更新定时扫描任务"""
@@ -105,24 +108,27 @@ class ScheduledScanViewSet(viewsets.ModelViewSet):
             scheduled_scan = self.service.update(instance.id, dto)
             response_serializer = ScheduledScanSerializer(scheduled_scan)
             
-            return Response({
-                'message': f'更新定时扫描任务成功: {scheduled_scan.name}',
-                'scheduled_scan': response_serializer.data
-            })
+            return success_response(data=response_serializer.data)
         except ValidationError as e:
-            return Response({'error': str(e)}, status=status.HTTP_400_BAD_REQUEST)
+            return error_response(
+                code=ErrorCodes.VALIDATION_ERROR,
+                message=str(e),
+                status_code=status.HTTP_400_BAD_REQUEST
+            )
     
     def destroy(self, request, *args, **kwargs):
         """删除定时扫描任务"""
         instance = self.get_object()
+        scan_id = instance.id
         name = instance.name
         
-        if self.service.delete(instance.id):
-            return Response({
-                'message': f'删除定时扫描任务成功: {name}',
-                'id': instance.id
-            })
-        return Response({'error': '删除失败'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+        if self.service.delete(scan_id):
+            return success_response(data={'id': scan_id, 'name': name})
+        return error_response(
+            code=ErrorCodes.SERVER_ERROR,
+            message='Failed to delete scheduled scan',
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
+        )
     
     @action(detail=True, methods=['post'])
     def toggle(self, request, pk=None):
@@ -136,14 +142,11 @@ class ScheduledScanViewSet(viewsets.ModelViewSet):
             scheduled_scan = self.get_object()
             response_serializer = ScheduledScanSerializer(scheduled_scan)
             
-            status_text = '启用' if is_enabled else '禁用'
-            return Response({
-                'message': f'已{status_text}定时扫描任务',
-                'scheduled_scan': response_serializer.data
-            })
+            return success_response(data=response_serializer.data)
         
-        return Response(
-            {'error': f'定时扫描任务 ID {pk} 不存在或操作失败'},
-            status=status.HTTP_404_NOT_FOUND
+        return error_response(
+            code=ErrorCodes.NOT_FOUND,
+            message=f'Scheduled scan with ID {pk} not found or operation failed',
+            status_code=status.HTTP_404_NOT_FOUND
         )
     
diff --git a/backend/apps/targets/views.py b/backend/apps/targets/views.py
index 8ac174d7..1f47b502 100644
--- a/backend/apps/targets/views.py
+++ b/backend/apps/targets/views.py
@@ -95,8 +95,9 @@ class OrganizationViewSet(viewsets.ModelViewSet):
             organization.targets.remove(*existing_target_ids)
         
         return Response({
-            'unlinked_count': existing_count,
-            'message': f'成功解除 {existing_count} 个目标的关联'
+            'data': {
+                'unlinkedCount': existing_count
+            }
         })
     
     def destroy(self, request, *args, **kwargs):
@@ -125,11 +126,12 @@ class OrganizationViewSet(viewsets.ModelViewSet):
             result = self.org_service.delete_organizations_two_phase([organization.id])
             
             return Response({
-                'message': f'已删除组织: {organization.name}',
-                'organizationId': organization.id,
-                'organizationName': organization.name,
-                'deletedCount': result['soft_deleted_count'],
-                'deletedOrganizations': result['organization_names']
+                'data': {
+                    'organizationId': organization.id,
+                    'organizationName': organization.name,
+                    'deletedCount': result['soft_deleted_count'],
+                    'deletedOrganizations': result['organization_names']
+                }
             }, status=200)
         
         except Organization.DoesNotExist:
@@ -182,9 +184,10 @@ class OrganizationViewSet(viewsets.ModelViewSet):
             result = self.org_service.delete_organizations_two_phase(ids)
             
             return Response({
-                'message': f"已删除 {result['soft_deleted_count']} 个组织",
-                'deletedCount': result['soft_deleted_count'],
-                'deletedOrganizations': result['organization_names']
+                'data': {
+                    'deletedCount': result['soft_deleted_count'],
+                    'deletedOrganizations': result['organization_names']
+                }
             }, status=200)
         
         except ValueError as e:
@@ -272,10 +275,11 @@ class TargetViewSet(viewsets.ModelViewSet):
             result = self.target_service.delete_targets_two_phase([target.id])
             
             return Response({
-                'message': f'已删除目标: {target.name}',
-                'targetId': target.id,
-                'targetName': target.name,
-                'deletedCount': result['soft_deleted_count']
+                'data': {
+                    'targetId': target.id,
+                    'targetName': target.name,
+                    'deletedCount': result['soft_deleted_count']
+                }
             }, status=200)
         
         except Target.DoesNotExist:
@@ -331,9 +335,10 @@ class TargetViewSet(viewsets.ModelViewSet):
             result = self.target_service.delete_targets_two_phase(ids)
             
             return Response({
-                'message': f"已删除 {result['soft_deleted_count']} 个目标",
-                'deletedCount': result['soft_deleted_count'],
-                'deletedTargets': result['target_names']
+                'data': {
+                    'deletedCount': result['soft_deleted_count'],
+                    'deletedTargets': result['target_names']
+                }
             }, status=200)
         
         except ValueError as e:
diff --git a/frontend/hooks/use-auth.ts b/frontend/hooks/use-auth.ts
index ff237e1a..db66c1c1 100644
--- a/frontend/hooks/use-auth.ts
+++ b/frontend/hooks/use-auth.ts
@@ -3,9 +3,9 @@
  */
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { useRouter } from 'next/navigation'
-import { toast } from 'sonner'
 import { login, logout, getMe, changePassword } from '@/services/auth.service'
-import { getErrorMessage } from '@/lib/api-client'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import type { LoginRequest, ChangePasswordRequest } from '@/types/auth.types'
 
 /**
@@ -30,16 +30,22 @@ export function useAuth() {
 export function useLogin() {
   const queryClient = useQueryClient()
   const router = useRouter()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: LoginRequest) => login(data),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['auth', 'me'] })
-      toast.success('Login successful')
+      toastMessages.success('toast.auth.login.success')
       router.push('/dashboard/')
     },
-    onError: (error: unknown) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('auth.loginFailed')
+      }
     },
   })
 }
@@ -50,16 +56,22 @@ export function useLogin() {
 export function useLogout() {
   const queryClient = useQueryClient()
   const router = useRouter()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: logout,
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['auth', 'me'] })
-      toast.success('Logged out')
+      toastMessages.success('toast.auth.logout.success')
       router.push('/login/')
     },
-    onError: (error: unknown) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('errors.unknown')
+      }
     },
   })
 }
@@ -68,13 +80,20 @@ export function useLogout() {
  * Change password
  */
 export function useChangePassword() {
+  const toastMessages = useToastMessages()
+
   return useMutation({
     mutationFn: (data: ChangePasswordRequest) => changePassword(data),
     onSuccess: () => {
-      toast.success('Password changed successfully')
+      toastMessages.success('toast.auth.changePassword.success')
     },
-    onError: (error: unknown) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.auth.changePassword.error')
+      }
     },
   })
 }
diff --git a/frontend/hooks/use-commands.ts b/frontend/hooks/use-commands.ts
index 1817c948..4b62f1d9 100644
--- a/frontend/hooks/use-commands.ts
+++ b/frontend/hooks/use-commands.ts
@@ -7,7 +7,8 @@ import type {
   GetCommandsResponse,
   Command,
 } from "@/types/command.types"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 
 // Mock data
 const MOCK_COMMANDS: Command[] = [
@@ -273,16 +274,17 @@ export function useCommand(id: number) {
  */
 export function useCreateCommand() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateCommandRequest) => CommandService.createCommand(data),
     onSuccess: () => {
-      toast.success("Command created successfully")
+      toastMessages.success('toast.command.create.success')
       queryClient.invalidateQueries({ queryKey: ["commands"] })
     },
     onError: (error: any) => {
       console.error("Failed to create command:", error)
-      toast.error("Failed to create command")
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.command.create.error')
     },
   })
 }
@@ -292,18 +294,19 @@ export function useCreateCommand() {
  */
 export function useUpdateCommand() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateCommandRequest }) =>
       CommandService.updateCommand(id, data),
     onSuccess: () => {
-      toast.success("Command updated successfully")
+      toastMessages.success('toast.command.update.success')
       queryClient.invalidateQueries({ queryKey: ["commands"] })
       queryClient.invalidateQueries({ queryKey: ["command"] })
     },
     onError: (error: any) => {
       console.error("Failed to update command:", error)
-      toast.error("Failed to update command")
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.command.update.error')
     },
   })
 }
@@ -313,16 +316,17 @@ export function useUpdateCommand() {
  */
 export function useDeleteCommand() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => CommandService.deleteCommand(id),
     onSuccess: () => {
-      toast.success("Command deleted successfully")
+      toastMessages.success('toast.command.delete.success')
       queryClient.invalidateQueries({ queryKey: ["commands"] })
     },
     onError: (error: any) => {
       console.error("Failed to delete command:", error)
-      toast.error("Failed to delete command")
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.command.delete.error')
     },
   })
 }
@@ -332,6 +336,7 @@ export function useDeleteCommand() {
  */
 export function useBatchDeleteCommands() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: async (ids: number[]) => {
@@ -351,12 +356,12 @@ export function useBatchDeleteCommands() {
       }
     },
     onSuccess: (response) => {
-      toast.success(`Successfully deleted ${response.data?.deletedCount} commands`)
+      toastMessages.success('toast.command.delete.bulkSuccess', { count: response.data?.deletedCount || 0 })
       queryClient.invalidateQueries({ queryKey: ["commands"] })
     },
     onError: (error: any) => {
       console.error("Failed to batch delete commands:", error)
-      toast.error("Failed to batch delete commands")
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.command.delete.error')
     },
   })
 }
diff --git a/frontend/hooks/use-directories.ts b/frontend/hooks/use-directories.ts
index 74b57882..7bd7c757 100644
--- a/frontend/hooks/use-directories.ts
+++ b/frontend/hooks/use-directories.ts
@@ -1,5 +1,6 @@
 import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { DirectoryService } from '@/services/directory.service'
 import type { Directory, DirectoryListResponse } from '@/types/directory.types'
 
@@ -108,28 +109,25 @@ export function useScanDirectories(
 // 删除单个目录（使用单独的 DELETE API）
 export function useDeleteDirectory() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: directoryService.deleteDirectory,
     onMutate: (id) => {
-      toast.loading('正在删除目录...', { id: `delete-directory-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-directory-${id}`)
     },
     onSuccess: (response, id) => {
-      toast.dismiss(`delete-directory-${id}`)
+      toastMessages.dismiss(`delete-directory-${id}`)
+      toastMessages.success('toast.asset.directory.delete.success')
       
-      // 显示删除成功信息
-      const { directoryUrl } = response
-      toast.success(`目录 "${directoryUrl}" 已成功删除`)
-      
-      // 刷新相关查询
       queryClient.invalidateQueries({ queryKey: ['target-directories'] })
       queryClient.invalidateQueries({ queryKey: ['scan-directories'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['scans'] })
     },
-    onError: (error: Error, id) => {
-      toast.dismiss(`delete-directory-${id}`)
-      toast.error(error.message || '删除目录失败')
+    onError: (error: any, id) => {
+      toastMessages.dismiss(`delete-directory-${id}`)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.directory.delete.error')
     },
   })
 }
@@ -137,25 +135,25 @@ export function useDeleteDirectory() {
 // 批量删除目录（使用统一的批量删除接口）
 export function useBulkDeleteDirectories() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: directoryService.bulkDeleteDirectories,
     onMutate: () => {
-      toast.loading('正在批量删除目录...', { id: 'bulk-delete-directories' })
+      toastMessages.loading('common.status.batchDeleting', {}, 'bulk-delete-directories')
     },
     onSuccess: (response) => {
-      toast.dismiss('bulk-delete-directories')
-      toast.success(`成功删除 ${response.deletedCount} 个目录`)
+      toastMessages.dismiss('bulk-delete-directories')
+      toastMessages.success('toast.asset.directory.delete.bulkSuccess', { count: response.deletedCount })
       
-      // 刷新相关查询
       queryClient.invalidateQueries({ queryKey: ['target-directories'] })
       queryClient.invalidateQueries({ queryKey: ['scan-directories'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['scans'] })
     },
-    onError: (error: Error) => {
-      toast.dismiss('bulk-delete-directories')
-      toast.error(error.message || '批量删除目录失败')
+    onError: (error: any) => {
+      toastMessages.dismiss('bulk-delete-directories')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.directory.delete.error')
     },
   })
 }
@@ -164,32 +162,31 @@ export function useBulkDeleteDirectories() {
 // 批量创建目录（绑定到目标）
 export function useBulkCreateDirectories() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { targetId: number; urls: string[] }) =>
       DirectoryService.bulkCreateDirectories(data.targetId, data.urls),
     onMutate: async () => {
-      toast.loading('正在批量创建目录...', { id: 'bulk-create-directories' })
+      toastMessages.loading('common.status.batchCreating', {}, 'bulk-create-directories')
     },
     onSuccess: (response, { targetId }) => {
-      toast.dismiss('bulk-create-directories')
+      toastMessages.dismiss('bulk-create-directories')
       const { createdCount } = response
       
       if (createdCount > 0) {
-        toast.success(`成功创建 ${createdCount} 个目录`)
+        toastMessages.success('toast.asset.directory.create.success', { count: createdCount })
       } else {
-        toast.warning('没有新目录被创建（可能已存在）')
+        toastMessages.warning('toast.asset.directory.create.partialSuccess', { success: 0, skipped: 0 })
       }
       
-      // 刷新目录列表
       queryClient.invalidateQueries({ queryKey: ['target-directories', targetId] })
       queryClient.invalidateQueries({ queryKey: ['scan-directories'] })
     },
     onError: (error: any) => {
-      toast.dismiss('bulk-create-directories')
-      console.error('批量创建目录失败:', error)
-      const errorMessage = error?.response?.data?.error || '批量创建失败，请查看控制台日志'
-      toast.error(errorMessage)
+      toastMessages.dismiss('bulk-create-directories')
+      console.error('Failed to bulk create directories:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.directory.create.error')
     },
   })
 }
diff --git a/frontend/hooks/use-endpoints.ts b/frontend/hooks/use-endpoints.ts
index 1793e657..3e8f6fb4 100644
--- a/frontend/hooks/use-endpoints.ts
+++ b/frontend/hooks/use-endpoints.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useMutation, useQuery, useQueryClient, keepPreviousData } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { EndpointService } from "@/services/endpoint.service"
 import type { 
   Endpoint, 
@@ -111,45 +112,35 @@ export function useScanEndpoints(scanId: number, params?: Omit<GetEndpointsReque
 // 创建 Endpoint（完全自动化）
 export function useCreateEndpoint() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: {
       endpoints: Array<CreateEndpointRequest>
     }) => EndpointService.createEndpoints(data),
     onMutate: async () => {
-      toast.loading('正在创建端点...', { id: 'create-endpoint' })
+      toastMessages.loading('common.status.creating', {}, 'create-endpoint')
     },
     onSuccess: (response) => {
-      // 关闭加载提示
-      toast.dismiss('create-endpoint')
+      toastMessages.dismiss('create-endpoint')
       
       const { createdCount, existedCount } = response
       
-      // 打印后端响应
-      console.log('创建端点成功')
-      console.log('后端响应:', response)
-      
-      // 前端自己构造成功提示消息
       if (existedCount > 0) {
-        toast.warning(
-          `成功创建 ${createdCount} 个端点（${existedCount} 个已存在）`
-        )
+        toastMessages.warning('toast.asset.endpoint.create.partialSuccess', { 
+          success: createdCount, 
+          skipped: existedCount 
+        })
       } else {
-        toast.success(`成功创建 ${createdCount} 个端点`)
+        toastMessages.success('toast.asset.endpoint.create.success', { count: createdCount })
       }
       
-      // 刷新所有端点相关查询（通配符匹配）
       queryClient.invalidateQueries({ queryKey: ['endpoints'] })
     },
     onError: (error: any) => {
-      // 关闭加载提示
-      toast.dismiss('create-endpoint')
-      
-      console.error('创建端点失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('创建端点失败，请查看控制台日志')
+      toastMessages.dismiss('create-endpoint')
+      console.error('Failed to create endpoint:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.endpoint.create.error')
     },
   })
 }
@@ -157,31 +148,22 @@ export function useCreateEndpoint() {
 // 删除单个 Endpoint
 export function useDeleteEndpoint() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => EndpointService.deleteEndpoint(id),
     onMutate: (id) => {
-      toast.loading('正在删除端点...', { id: `delete-endpoint-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-endpoint-${id}`)
     },
     onSuccess: (response, id) => {
-      toast.dismiss(`delete-endpoint-${id}`)
-      
-      // 打印后端响应
-      console.log('删除端点成功')
-      
-      toast.success('删除成功')
-      
-      // 刷新所有端点相关查询（通配符匹配）
+      toastMessages.dismiss(`delete-endpoint-${id}`)
+      toastMessages.success('toast.asset.endpoint.delete.success')
       queryClient.invalidateQueries({ queryKey: ['endpoints'] })
     },
     onError: (error: any, id) => {
-      toast.dismiss(`delete-endpoint-${id}`)
-      
-      console.error('删除端点失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('删除端点失败，请查看控制台日志')
+      toastMessages.dismiss(`delete-endpoint-${id}`)
+      console.error('Failed to delete endpoint:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.endpoint.delete.error')
     },
   })
 }
@@ -189,33 +171,23 @@ export function useDeleteEndpoint() {
 // 批量删除 Endpoint
 export function useBatchDeleteEndpoints() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: BatchDeleteEndpointsRequest) => EndpointService.batchDeleteEndpoints(data),
     onMutate: () => {
-      toast.loading('正在批量删除端点...', { id: 'batch-delete-endpoints' })
+      toastMessages.loading('common.status.batchDeleting', {}, 'batch-delete-endpoints')
     },
     onSuccess: (response) => {
-      toast.dismiss('batch-delete-endpoints')
-      
-      // 打印后端响应
-      console.log('批量删除端点成功')
-      console.log('后端响应:', response)
-      
+      toastMessages.dismiss('batch-delete-endpoints')
       const { deletedCount } = response
-      toast.success(`成功删除 ${deletedCount} 个端点`)
-      
-      // 刷新所有端点相关查询（通配符匹配）
+      toastMessages.success('toast.asset.endpoint.delete.bulkSuccess', { count: deletedCount })
       queryClient.invalidateQueries({ queryKey: ['endpoints'] })
     },
     onError: (error: any) => {
-      toast.dismiss('batch-delete-endpoints')
-      
-      console.error('批量删除端点失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('批量删除失败，请查看控制台日志')
+      toastMessages.dismiss('batch-delete-endpoints')
+      console.error('Failed to batch delete endpoints:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.endpoint.delete.error')
     },
   })
 }
@@ -223,32 +195,31 @@ export function useBatchDeleteEndpoints() {
 // 批量创建端点（绑定到目标）
 export function useBulkCreateEndpoints() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { targetId: number; urls: string[] }) =>
       EndpointService.bulkCreateEndpoints(data.targetId, data.urls),
     onMutate: async () => {
-      toast.loading('正在批量创建端点...', { id: 'bulk-create-endpoints' })
+      toastMessages.loading('common.status.batchCreating', {}, 'bulk-create-endpoints')
     },
     onSuccess: (response, { targetId }) => {
-      toast.dismiss('bulk-create-endpoints')
+      toastMessages.dismiss('bulk-create-endpoints')
       const { createdCount } = response
       
       if (createdCount > 0) {
-        toast.success(`成功创建 ${createdCount} 个端点`)
+        toastMessages.success('toast.asset.endpoint.create.success', { count: createdCount })
       } else {
-        toast.warning('没有新端点被创建（可能已存在）')
+        toastMessages.warning('toast.asset.endpoint.create.partialSuccess', { success: 0, skipped: 0 })
       }
       
-      // 刷新端点列表
       queryClient.invalidateQueries({ queryKey: endpointKeys.byTarget(targetId, {}) })
       queryClient.invalidateQueries({ queryKey: ['endpoints'] })
     },
     onError: (error: any) => {
-      toast.dismiss('bulk-create-endpoints')
-      console.error('批量创建端点失败:', error)
-      const errorMessage = error?.response?.data?.error || '批量创建失败，请查看控制台日志'
-      toast.error(errorMessage)
+      toastMessages.dismiss('bulk-create-endpoints')
+      console.error('Failed to bulk create endpoints:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.endpoint.create.error')
     },
   })
 }
diff --git a/frontend/hooks/use-engines.ts b/frontend/hooks/use-engines.ts
index 46a8c015..2221e117 100644
--- a/frontend/hooks/use-engines.ts
+++ b/frontend/hooks/use-engines.ts
@@ -1,5 +1,6 @@
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import {
   getEngines,
   getEngine,
@@ -35,17 +36,16 @@ export function useEngine(id: number) {
  */
 export function useCreateEngine() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: createEngine,
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['engines'] })
-      toast.success('Engine created successfully')
+      toastMessages.success('toast.engine.create.success')
     },
     onError: (error: any) => {
-      toast.error('Failed to create engine', {
-        description: error?.response?.data?.error || error.message,
-      })
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.engine.create.error')
     },
   })
 }
@@ -55,6 +55,7 @@ export function useCreateEngine() {
  */
 export function useUpdateEngine() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: Parameters<typeof updateEngine>[1] }) =>
@@ -62,12 +63,10 @@ export function useUpdateEngine() {
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['engines'] })
       queryClient.invalidateQueries({ queryKey: ['engines', variables.id] })
-      toast.success('Engine updated successfully')
+      toastMessages.success('toast.engine.update.success')
     },
     onError: (error: any) => {
-      toast.error('Failed to update engine', {
-        description: error?.response?.data?.error || error.message,
-      })
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.engine.update.error')
     },
   })
 }
@@ -77,17 +76,16 @@ export function useUpdateEngine() {
  */
 export function useDeleteEngine() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: deleteEngine,
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['engines'] })
-      toast.success('Engine deleted successfully')
+      toastMessages.success('toast.engine.delete.success')
     },
     onError: (error: any) => {
-      toast.error('Failed to delete engine', {
-        description: error?.response?.data?.error || error.message,
-      })
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.engine.delete.error')
     },
   })
 }
diff --git a/frontend/hooks/use-notification-settings.ts b/frontend/hooks/use-notification-settings.ts
index 6195a843..9728ffb4 100644
--- a/frontend/hooks/use-notification-settings.ts
+++ b/frontend/hooks/use-notification-settings.ts
@@ -1,7 +1,8 @@
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
 import { NotificationSettingsService } from '@/services/notification-settings.service'
 import type { UpdateNotificationSettingsRequest } from '@/types/notification-settings.types'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 
 export function useNotificationSettings() {
   return useQuery({
@@ -12,15 +13,17 @@ export function useNotificationSettings() {
 
 export function useUpdateNotificationSettings() {
   const qc = useQueryClient()
+  const toastMessages = useToastMessages()
+  
   return useMutation({
     mutationFn: (data: UpdateNotificationSettingsRequest) =>
       NotificationSettingsService.updateSettings(data),
-    onSuccess: (res) => {
+    onSuccess: () => {
       qc.invalidateQueries({ queryKey: ['notification-settings'] })
-      toast.success(res?.message || 'Notification settings saved')
+      toastMessages.success('toast.notification.settings.success')
     },
-    onError: () => {
-      toast.error('Save failed, please try again')
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.notification.settings.error')
     },
   })
 }
diff --git a/frontend/hooks/use-notification-sse.ts b/frontend/hooks/use-notification-sse.ts
index 5748cdc5..bbc39603 100644
--- a/frontend/hooks/use-notification-sse.ts
+++ b/frontend/hooks/use-notification-sse.ts
@@ -4,9 +4,9 @@
 
 import { useCallback, useEffect, useState, useRef } from 'react'
 import { useQueryClient } from '@tanstack/react-query'
-import { toast } from 'sonner'
 import type { BackendNotification, Notification, BackendNotificationLevel, NotificationSeverity } from '@/types/notification.types'
 import { getBackendBaseUrl } from '@/lib/env'
+import { useToastMessages } from '@/lib/toast-helpers'
 
 const severityMap: Record<BackendNotificationLevel, NotificationSeverity> = {
   critical: 'critical',
@@ -70,6 +70,7 @@ export function useNotificationSSE() {
   const reconnectAttempts = useRef(0)
   const maxReconnectAttempts = 10
   const baseReconnectDelay = 1000 // 1秒
+  const toastMessages = useToastMessages()
 
   const markNotificationsAsRead = useCallback((ids?: number[]) => {
     setNotifications(prev => prev.map(notification => {
@@ -176,7 +177,7 @@ export function useNotificationSSE() {
 
           if (data.type === 'error') {
             console.error('[ERROR] WebSocket 错误:', data.message)
-            toast.error(`通知连接错误: ${data.message}`)
+            toastMessages.error('toast.notification.connection.error', { message: data.message })
             return
           }
 
@@ -258,7 +259,7 @@ export function useNotificationSSE() {
       setIsConnected(false)
       isConnectingRef.current = false
     }
-  }, [queryClient, startHeartbeat, stopHeartbeat, getReconnectDelay])
+  }, [queryClient, startHeartbeat, stopHeartbeat, getReconnectDelay, toastMessages])
 
   // 断开连接
   const disconnect = useCallback(() => {
diff --git a/frontend/hooks/use-nuclei-git-settings.ts b/frontend/hooks/use-nuclei-git-settings.ts
index d38ba083..86e51160 100644
--- a/frontend/hooks/use-nuclei-git-settings.ts
+++ b/frontend/hooks/use-nuclei-git-settings.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { NucleiGitService } from "@/services/nuclei-git.service"
 import type { UpdateNucleiGitSettingsRequest } from "@/types/nuclei-git.types"
 
@@ -14,15 +15,16 @@ export function useNucleiGitSettings() {
 
 export function useUpdateNucleiGitSettings() {
   const qc = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: UpdateNucleiGitSettingsRequest) => NucleiGitService.updateSettings(data),
-    onSuccess: (res) => {
+    onSuccess: () => {
       qc.invalidateQueries({ queryKey: ["nuclei", "git", "settings"] })
-      toast.success(res?.message || "Git repository configuration saved")
+      toastMessages.success('toast.nucleiGit.settings.success')
     },
-    onError: () => {
-      toast.error("Failed to save Git repository configuration, please try again")
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiGit.settings.error')
     },
   })
 }
diff --git a/frontend/hooks/use-nuclei-repos.ts b/frontend/hooks/use-nuclei-repos.ts
index 97663472..128587f7 100644
--- a/frontend/hooks/use-nuclei-repos.ts
+++ b/frontend/hooks/use-nuclei-repos.ts
@@ -3,9 +3,9 @@
  */
 
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { nucleiRepoApi } from "../services/nuclei-repo.api"
-import { getErrorMessage } from "@/lib/api-client"
 import type { NucleiTemplateTreeNode, NucleiTemplateContent } from "@/types/nuclei.types"
 
 // ==================== 仓库 CRUD ====================
@@ -41,15 +41,16 @@ export function useNucleiRepo(repoId: number | null) {
 /** 创建仓库 */
 export function useCreateNucleiRepo() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: nucleiRepoApi.createRepo,
-    onSuccess: (data) => {
-      toast.success(`仓库「${data.name}」创建成功`)
+    onSuccess: () => {
+      toastMessages.success('toast.nucleiRepo.create.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos"] })
     },
-    onError: (error) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiRepo.create.error')
     },
   })
 }
@@ -57,6 +58,7 @@ export function useCreateNucleiRepo() {
 /** 更新仓库 */
 export function useUpdateNucleiRepo() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: {
@@ -64,12 +66,12 @@ export function useUpdateNucleiRepo() {
       repoUrl?: string
     }) => nucleiRepoApi.updateRepo(data.id, { repoUrl: data.repoUrl }),
     onSuccess: (_data, variables) => {
-      toast.success("仓库配置已更新")
+      toastMessages.success('toast.nucleiRepo.update.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos"] })
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos", variables.id] })
     },
-    onError: (error) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiRepo.update.error')
     },
   })
 }
@@ -77,15 +79,16 @@ export function useUpdateNucleiRepo() {
 /** 删除仓库 */
 export function useDeleteNucleiRepo() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: nucleiRepoApi.deleteRepo,
     onSuccess: () => {
-      toast.success("仓库已删除")
+      toastMessages.success('toast.nucleiRepo.delete.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos"] })
     },
-    onError: (error) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiRepo.delete.error')
     },
   })
 }
@@ -95,18 +98,18 @@ export function useDeleteNucleiRepo() {
 /** 刷新仓库（Git clone/pull） */
 export function useRefreshNucleiRepo() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: nucleiRepoApi.refreshRepo,
     onSuccess: (_data, repoId) => {
-      toast.success("仓库同步成功")
-      // 刷新仓库列表（last_synced_at 会更新）
+      toastMessages.success('toast.nucleiRepo.sync.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos"] })
       queryClient.invalidateQueries({ queryKey: ["nuclei-repos", repoId] })
       queryClient.invalidateQueries({ queryKey: ["nuclei-repo-tree", repoId] })
     },
-    onError: (error) => {
-      toast.error(getErrorMessage(error))
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiRepo.sync.error')
     },
   })
 }
diff --git a/frontend/hooks/use-nuclei-templates.ts b/frontend/hooks/use-nuclei-templates.ts
index 66d2644d..c0a4014a 100644
--- a/frontend/hooks/use-nuclei-templates.ts
+++ b/frontend/hooks/use-nuclei-templates.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { getNucleiTemplateTree, getNucleiTemplateContent, refreshNucleiTemplates, saveNucleiTemplate, uploadNucleiTemplate } from "@/services/nuclei.service"
 import type { NucleiTemplateTreeNode, NucleiTemplateContent, UploadNucleiTemplatePayload, SaveNucleiTemplatePayload } from "@/types/nuclei.types"
 
@@ -22,60 +23,63 @@ export function useNucleiTemplateContent(path: string | null) {
 
 export function useRefreshNucleiTemplates() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: () => refreshNucleiTemplates(),
     onMutate: () => {
-      toast.loading("正在更新 Nuclei 官方模板...", { id: "refresh-nuclei-templates" })
+      toastMessages.loading('toast.nucleiTemplate.refresh.loading', {}, 'refresh-nuclei-templates')
     },
     onSuccess: () => {
-      toast.dismiss("refresh-nuclei-templates")
-      toast.success("模板更新完成")
+      toastMessages.dismiss('refresh-nuclei-templates')
+      toastMessages.success('toast.nucleiTemplate.refresh.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei", "templates", "tree"] })
     },
-    onError: () => {
-      toast.dismiss("refresh-nuclei-templates")
-      toast.error("模板更新失败")
+    onError: (error: any) => {
+      toastMessages.dismiss('refresh-nuclei-templates')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiTemplate.refresh.error')
     },
   })
 }
 
 export function useUploadNucleiTemplate() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation<void, Error, UploadNucleiTemplatePayload>({
     mutationFn: (payload) => uploadNucleiTemplate(payload),
     onMutate: () => {
-      toast.loading("正在上传模板...", { id: "upload-nuclei-template" })
+      toastMessages.loading('common.status.uploading', {}, 'upload-nuclei-template')
     },
     onSuccess: () => {
-      toast.dismiss("upload-nuclei-template")
-      toast.success("模板上传成功")
+      toastMessages.dismiss('upload-nuclei-template')
+      toastMessages.success('toast.nucleiTemplate.upload.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei", "templates", "tree"] })
     },
-    onError: (error) => {
-      toast.dismiss("upload-nuclei-template")
-      toast.error(error.message || "模板上传失败")
+    onError: (error: any) => {
+      toastMessages.dismiss('upload-nuclei-template')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiTemplate.upload.error')
     },
   })
 }
 
 export function useSaveNucleiTemplate() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation<void, Error, SaveNucleiTemplatePayload>({
     mutationFn: (payload) => saveNucleiTemplate(payload),
     onMutate: () => {
-      toast.loading("正在保存模板...", { id: "save-nuclei-template" })
+      toastMessages.loading('common.actions.saving', {}, 'save-nuclei-template')
     },
     onSuccess: (_data, variables) => {
-      toast.dismiss("save-nuclei-template")
-      toast.success("模板保存成功")
+      toastMessages.dismiss('save-nuclei-template')
+      toastMessages.success('toast.nucleiTemplate.save.success')
       queryClient.invalidateQueries({ queryKey: ["nuclei", "templates", "content", variables.path] })
     },
-    onError: (error) => {
-      toast.dismiss("save-nuclei-template")
-      toast.error(error.message || "模板保存失败")
+    onError: (error: any) => {
+      toastMessages.dismiss('save-nuclei-template')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.nucleiTemplate.save.error')
     },
   })
 }
diff --git a/frontend/hooks/use-organizations.ts b/frontend/hooks/use-organizations.ts
index a2c37c08..b364888f 100644
--- a/frontend/hooks/use-organizations.ts
+++ b/frontend/hooks/use-organizations.ts
@@ -1,5 +1,6 @@
 import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { OrganizationService } from '@/services/organization.service'
 import type { Organization, CreateOrganizationRequest, UpdateOrganizationRequest } from '@/types/organization.types'
 
@@ -107,33 +108,23 @@ export function useOrganizationTargets(
  */
 export function useCreateOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateOrganizationRequest) => 
       OrganizationService.createOrganization(data),
     onMutate: () => {
-      // Show creation start notification
-      toast.loading('Creating organization...', { id: 'create-organization' })
+      toastMessages.loading('common.status.creating', {}, 'create-organization')
     },
     onSuccess: () => {
-      // Close loading notification
-      toast.dismiss('create-organization')
-      
-      // Refresh all organization-related queries (wildcard matching)
+      toastMessages.dismiss('create-organization')
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
-      
-      // Show success notification
-      toast.success('Created successfully')
+      toastMessages.success('toast.organization.create.success')
     },
     onError: (error: any) => {
-      // Close loading notification
-      toast.dismiss('create-organization')
-      
+      toastMessages.dismiss('create-organization')
       console.error('Failed to create organization:', error)
-      console.error('Backend response:', error?.response?.data || error)
-      
-      // Frontend constructs error message
-      toast.error('Failed to create organization, please check console logs')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.organization.create.error')
     },
   })
 }
@@ -143,33 +134,23 @@ export function useCreateOrganization() {
  */
 export function useUpdateOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateOrganizationRequest }) =>
       OrganizationService.updateOrganization({ id, ...data }),
-    onMutate: ({ id, data }) => {
-      // 显示更新开始的提示
-      toast.loading('正在更新组织...', { id: `update-${id}` })
+    onMutate: ({ id }) => {
+      toastMessages.loading('common.status.updating', {}, `update-${id}`)
     },
     onSuccess: ({ id }) => {
-      // 关闭加载提示
-      toast.dismiss(`update-${id}`)
-      
-      // 刷新所有组织相关查询（通配符匹配）
+      toastMessages.dismiss(`update-${id}`)
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
-      
-      // 显示成功提示
-      toast.success('更新成功')
+      toastMessages.success('toast.organization.update.success')
     },
     onError: (error: any, { id }) => {
-      // 关闭加载提示
-      toast.dismiss(`update-${id}`)
-      
-      console.error('更新组织失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('更新组织失败，请查看控制台日志')
+      toastMessages.dismiss(`update-${id}`)
+      console.error('Failed to update organization:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.organization.update.error')
     },
   })
 }
@@ -179,20 +160,16 @@ export function useUpdateOrganization() {
  */
 export function useDeleteOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => OrganizationService.deleteOrganization(id),
     onMutate: async (deletedId) => {
-      // 显示删除开始的提示
-      toast.loading('正在删除组织...', { id: `delete-${deletedId}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-${deletedId}`)
       
-      // 取消正在进行的查询
       await queryClient.cancelQueries({ queryKey: ['organizations'] })
-
-      // 获取当前数据作为备份
       const previousData = queryClient.getQueriesData({ queryKey: ['organizations'] })
 
-      // 乐观更新：从所有列表查询中移除该组织
       queryClient.setQueriesData(
         { queryKey: ['organizations'] },
         (old: any) => {
@@ -206,38 +183,27 @@ export function useDeleteOrganization() {
         }
       )
 
-      // 返回备份数据用于回滚
       return { previousData, deletedId }
     },
-    onSuccess: (response, deletedId, context) => {
-      // 关闭加载提示
-      toast.dismiss(`delete-${deletedId}`)
-      
-      // 显示删除成功信息
+    onSuccess: (response, deletedId) => {
+      toastMessages.dismiss(`delete-${deletedId}`)
       const { organizationName } = response
-      toast.success(`组织 "${organizationName}" 已成功删除`)
+      toastMessages.success('toast.organization.delete.success', { name: organizationName })
     },
     onError: (error: any, deletedId, context) => {
-      // 关闭加载提示
-      toast.dismiss(`delete-${deletedId}`)
+      toastMessages.dismiss(`delete-${deletedId}`)
       
-      // 回滚乐观更新
       if (context?.previousData) {
         context.previousData.forEach(([queryKey, data]) => {
           queryClient.setQueryData(queryKey, data)
         })
       }
       
-      console.error('删除组织失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('删除组织失败，请查看控制台日志')
+      console.error('Failed to delete organization:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.organization.delete.error')
     },
     onSettled: () => {
-      // 无论成功失败都刷新数据
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
-      // 刷新目标查询，因为删除组织会解除目标的关联关系，需要更新目标的 organizations 字段
       queryClient.invalidateQueries({ queryKey: ['targets'] })
     },
   })
@@ -248,21 +214,17 @@ export function useDeleteOrganization() {
  */
 export function useBatchDeleteOrganizations() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (ids: number[]) => 
       OrganizationService.batchDeleteOrganizations(ids),
     onMutate: async (deletedIds) => {
-      // 显示批量删除开始的提示
-      toast.loading('正在批量删除组织...', { id: 'batch-delete' })
+      toastMessages.loading('common.status.batchDeleting', {}, 'batch-delete')
       
-      // 取消正在进行的查询
       await queryClient.cancelQueries({ queryKey: ['organizations'] })
-
-      // 获取当前数据作为备份
       const previousData = queryClient.getQueriesData({ queryKey: ['organizations'] })
 
-      // 乐观更新：从所有列表查询中移除这些组织
       queryClient.setQueriesData(
         { queryKey: ['organizations'] },
         (old: any) => {
@@ -278,42 +240,27 @@ export function useBatchDeleteOrganizations() {
         }
       )
 
-      // 返回备份数据用于回滚
       return { previousData, deletedIds }
     },
-    onSuccess: (response, deletedIds) => {
-      // 关闭加载提示
-      toast.dismiss('batch-delete')
-      
-      // 打印后端响应
-      console.log('批量删除组织成功')
-      console.log('后端响应:', response)
-      
-      // 显示删除成功信息
+    onSuccess: (response) => {
+      toastMessages.dismiss('batch-delete')
       const { deletedOrganizationCount } = response
-      toast.success(`成功删除 ${deletedOrganizationCount} 个组织`)
+      toastMessages.success('toast.organization.delete.bulkSuccess', { count: deletedOrganizationCount })
     },
     onError: (error: any, deletedIds, context) => {
-      // 关闭加载提示
-      toast.dismiss('batch-delete')
+      toastMessages.dismiss('batch-delete')
       
-      // 回滚乐观更新
       if (context?.previousData) {
         context.previousData.forEach(([queryKey, data]) => {
           queryClient.setQueryData(queryKey, data)
         })
       }
       
-      console.error('批量删除组织失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('批量删除失败，请查看控制台日志')
+      console.error('Failed to batch delete organizations:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.organization.delete.error')
     },
     onSettled: () => {
-      // 无论成功失败都刷新数据
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
-      // 刷新目标查询，因为删除组织会解除目标的关联关系，需要更新目标的 organizations 字段
       queryClient.invalidateQueries({ queryKey: ['targets'] })
     },
   })
@@ -326,29 +273,25 @@ export function useBatchDeleteOrganizations() {
  */
 export function useUnlinkTargetsFromOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { organizationId: number; targetIds: number[] }) => 
       OrganizationService.unlinkTargetsFromOrganization(data),
-    onMutate: ({ organizationId, targetIds }) => {
-      toast.loading('正在解除关联...', { id: `unlink-${organizationId}` })
+    onMutate: ({ organizationId }) => {
+      toastMessages.loading('common.status.unlinking', {}, `unlink-${organizationId}`)
     },
-    onSuccess: (response, { organizationId }) => {
-      toast.dismiss(`unlink-${organizationId}`)
-      toast.success(response.message || '已成功解除关联')
+    onSuccess: (response, { organizationId, targetIds }) => {
+      toastMessages.dismiss(`unlink-${organizationId}`)
+      toastMessages.success('toast.target.unlink.bulkSuccess', { count: targetIds.length })
       
-      // 刷新所有目标和组织相关查询
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any, { organizationId }) => {
-      toast.dismiss(`unlink-${organizationId}`)
-      
-      console.error('解除关联失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      const errorMessage = error?.response?.data?.error || '解除关联失败'
-      toast.error(errorMessage)
+      toastMessages.dismiss(`unlink-${organizationId}`)
+      console.error('Failed to unlink targets:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.unlink.error')
     },
   })
 }
diff --git a/frontend/hooks/use-scans.ts b/frontend/hooks/use-scans.ts
index 1dcbb9a2..ede5a525 100644
--- a/frontend/hooks/use-scans.ts
+++ b/frontend/hooks/use-scans.ts
@@ -1,6 +1,21 @@
-import { useQuery, keepPreviousData } from '@tanstack/react-query'
-import { getScans, getScan, getScanStatistics } from '@/services/scan.service'
-import type { GetScansParams } from '@/types/scan.types'
+import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
+import { 
+  getScans, 
+  getScan, 
+  getScanStatistics,
+  quickScan,
+  initiateScan,
+  deleteScan,
+  bulkDeleteScans,
+  stopScan
+} from '@/services/scan.service'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { parseResponse, getErrorCode } from '@/lib/response-parser'
+import type { 
+  GetScansParams, 
+  QuickScanRequest, 
+  InitiateScanRequest 
+} from '@/types/scan.types'
 
 export function useScans(params: GetScansParams = { page: 1, pageSize: 10 }) {
   return useQuery({
@@ -31,3 +46,156 @@ export function useScanStatistics() {
     queryFn: getScanStatistics,
   })
 }
+
+/**
+ * 快速扫描 mutation hook
+ */
+export function useQuickScan() {
+  const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
+
+  return useMutation({
+    mutationFn: (data: QuickScanRequest) => quickScan(data),
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      if (data) {
+        // 使用 i18n 消息显示成功提示
+        const count = data.scans?.length || data.targetStats?.created || data.count || 0
+        toastMessages.success('toast.scan.quick.success', { count })
+        // 刷新扫描列表
+        queryClient.invalidateQueries({ queryKey: ['scans'] })
+        queryClient.invalidateQueries({ queryKey: ['scan-statistics'] })
+      }
+    },
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scan.quick.error')
+      }
+    },
+  })
+}
+
+/**
+ * 发起扫描 mutation hook
+ */
+export function useInitiateScan() {
+  const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
+
+  return useMutation({
+    mutationFn: (data: InitiateScanRequest) => initiateScan(data),
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      if (data) {
+        // 使用 i18n 消息显示成功提示
+        toastMessages.success('toast.scan.initiate.success')
+        // 刷新扫描列表
+        queryClient.invalidateQueries({ queryKey: ['scans'] })
+        queryClient.invalidateQueries({ queryKey: ['scan-statistics'] })
+      }
+    },
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scan.initiate.error')
+      }
+    },
+  })
+}
+
+/**
+ * 删除扫描 mutation hook
+ */
+export function useDeleteScan() {
+  const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
+
+  return useMutation({
+    mutationFn: (id: number) => deleteScan(id),
+    onSuccess: (response, id) => {
+      const data = parseResponse<any>(response)
+      // 使用 i18n 消息显示成功提示
+      toastMessages.success('toast.scan.delete.success', { 
+        name: `Scan #${id}` 
+      })
+      // 刷新扫描列表
+      queryClient.invalidateQueries({ queryKey: ['scans'] })
+      queryClient.invalidateQueries({ queryKey: ['scan-statistics'] })
+    },
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.deleteFailed')
+      }
+    },
+  })
+}
+
+/**
+ * 批量删除扫描 mutation hook
+ */
+export function useBulkDeleteScans() {
+  const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
+
+  return useMutation({
+    mutationFn: (ids: number[]) => bulkDeleteScans(ids),
+    onSuccess: (response, ids) => {
+      const data = parseResponse<any>(response)
+      if (data) {
+        // 使用 i18n 消息显示成功提示
+        const count = data.deletedCount || ids.length || 0
+        toastMessages.success('toast.scan.delete.bulkSuccess', { count })
+        // 刷新扫描列表
+        queryClient.invalidateQueries({ queryKey: ['scans'] })
+        queryClient.invalidateQueries({ queryKey: ['scan-statistics'] })
+      }
+    },
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.bulkDeleteFailed')
+      }
+    },
+  })
+}
+
+/**
+ * 停止扫描 mutation hook
+ */
+export function useStopScan() {
+  const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
+
+  return useMutation({
+    mutationFn: (id: number) => stopScan(id),
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      if (data) {
+        // 使用 i18n 消息显示成功提示
+        const count = data.revokedTaskCount || 1
+        toastMessages.success('toast.scan.stop.success', { count })
+        // 刷新扫描列表
+        queryClient.invalidateQueries({ queryKey: ['scans'] })
+        queryClient.invalidateQueries({ queryKey: ['scan-statistics'] })
+      }
+    },
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.stopFailed')
+      }
+    },
+  })
+}
diff --git a/frontend/hooks/use-scheduled-scans.ts b/frontend/hooks/use-scheduled-scans.ts
index 61c2fbc4..adbf4a3c 100644
--- a/frontend/hooks/use-scheduled-scans.ts
+++ b/frontend/hooks/use-scheduled-scans.ts
@@ -1,5 +1,4 @@
 import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
-import { toast } from 'sonner'
 import {
   getScheduledScans,
   getScheduledScan,
@@ -8,6 +7,8 @@ import {
   deleteScheduledScan,
   toggleScheduledScan,
 } from '@/services/scheduled-scan.service'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { parseResponse, getErrorCode } from '@/lib/response-parser'
 import type { CreateScheduledScanRequest, UpdateScheduledScanRequest } from '@/types/scheduled-scan.types'
 
 /**
@@ -37,15 +38,23 @@ export function useScheduledScan(id: number) {
  */
 export function useCreateScheduledScan() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateScheduledScanRequest) => createScheduledScan(data),
-    onSuccess: (result) => {
-      toast.success(result.message)
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      // 使用 i18n 消息显示成功提示
+      toastMessages.success('toast.scheduledScan.create.success')
       queryClient.invalidateQueries({ queryKey: ['scheduled-scans'] })
     },
-    onError: (error: Error) => {
-      toast.error(`创建失败: ${error.message}`)
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scheduledScan.create.error')
+      }
     },
   })
 }
@@ -55,17 +64,25 @@ export function useCreateScheduledScan() {
  */
 export function useUpdateScheduledScan() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateScheduledScanRequest }) =>
       updateScheduledScan(id, data),
-    onSuccess: (result) => {
-      toast.success(result.message)
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      // 使用 i18n 消息显示成功提示
+      toastMessages.success('toast.scheduledScan.update.success')
       queryClient.invalidateQueries({ queryKey: ['scheduled-scans'] })
       queryClient.invalidateQueries({ queryKey: ['scheduled-scan'] })
     },
-    onError: (error: Error) => {
-      toast.error(`更新失败: ${error.message}`)
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scheduledScan.update.error')
+      }
     },
   })
 }
@@ -75,15 +92,23 @@ export function useUpdateScheduledScan() {
  */
 export function useDeleteScheduledScan() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => deleteScheduledScan(id),
-    onSuccess: (result) => {
-      toast.success(result.message)
+    onSuccess: (response) => {
+      const data = parseResponse<any>(response)
+      // 使用 i18n 消息显示成功提示
+      toastMessages.success('toast.scheduledScan.delete.success')
       queryClient.invalidateQueries({ queryKey: ['scheduled-scans'] })
     },
-    onError: (error: Error) => {
-      toast.error(`删除失败: ${error.message}`)
+    onError: (error: any) => {
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scheduledScan.delete.error')
+      }
     },
   })
 }
@@ -94,6 +119,7 @@ export function useDeleteScheduledScan() {
  */
 export function useToggleScheduledScan() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, isEnabled }: { id: number; isEnabled: boolean }) =>
@@ -122,18 +148,29 @@ export function useToggleScheduledScan() {
       // 返回上下文用于回滚
       return { previousQueries }
     },
-    onSuccess: (result) => {
-      toast.success(result.message)
+    onSuccess: (response, { isEnabled }) => {
+      const data = parseResponse<any>(response)
+      // 使用 i18n 消息显示成功提示
+      if (isEnabled) {
+        toastMessages.success('toast.scheduledScan.toggle.enabled')
+      } else {
+        toastMessages.success('toast.scheduledScan.toggle.disabled')
+      }
       // 不调用 invalidateQueries，保持当前排序
     },
-    onError: (error: Error, _variables, context) => {
+    onError: (error: any, _variables, context) => {
       // 回滚到之前的状态
       if (context?.previousQueries) {
         context.previousQueries.forEach(([queryKey, data]) => {
           queryClient.setQueryData(queryKey, data)
         })
       }
-      toast.error(`操作失败: ${error.message}`)
+      const errorCode = getErrorCode(error.response?.data)
+      if (errorCode) {
+        toastMessages.errorFromCode(errorCode)
+      } else {
+        toastMessages.error('toast.scheduledScan.toggle.error')
+      }
     },
   })
 }
diff --git a/frontend/hooks/use-subdomains.ts b/frontend/hooks/use-subdomains.ts
index abf6ef5b..3ed3cb2a 100644
--- a/frontend/hooks/use-subdomains.ts
+++ b/frontend/hooks/use-subdomains.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useMutation, useQuery, useQueryClient, keepPreviousData } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { SubdomainService } from "@/services/subdomain.service"
 import { OrganizationService } from "@/services/organization.service"
 import type { Subdomain, GetSubdomainsResponse, GetAllSubdomainsParams } from "@/types/subdomain.types"
@@ -57,33 +58,32 @@ export function useOrganizationSubdomains(
 // 创建子域名（绑定到资产）
 export function useCreateSubdomain() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { domains: Array<{ name: string }>; assetId: number }) =>
       SubdomainService.createSubdomains(data),
     onMutate: async () => {
-      toast.loading('正在创建子域名...', { id: 'create-subdomain' })
+      toastMessages.loading('common.status.creating', {}, 'create-subdomain')
     },
     onSuccess: (response) => {
-      toast.dismiss('create-subdomain')
+      toastMessages.dismiss('create-subdomain')
       const { createdCount, existedCount, skippedCount = 0 } = response
-      if (skippedCount > 0 && existedCount > 0) {
-        toast.warning(`成功创建 ${createdCount} 个子域名（${existedCount} 个已存在，${skippedCount} 个已跳过）`)
-      } else if (skippedCount > 0) {
-        toast.warning(`成功创建 ${createdCount} 个子域名（${skippedCount} 个已跳过）`)
-      } else if (existedCount > 0) {
-        toast.warning(`成功创建 ${createdCount} 个子域名（${existedCount} 个已存在）`)
+      if (skippedCount > 0 || existedCount > 0) {
+        toastMessages.warning('toast.asset.subdomain.create.partialSuccess', { 
+          success: createdCount, 
+          skipped: (existedCount || 0) + (skippedCount || 0) 
+        })
       } else {
-        toast.success(`成功创建 ${createdCount} 个子域名`)
+        toastMessages.success('toast.asset.subdomain.create.success', { count: createdCount })
       }
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['assets'] })
     },
     onError: (error: any) => {
-      toast.dismiss('create-subdomain')
-      console.error('创建子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('创建子域名失败，请查看控制台日志')
+      toastMessages.dismiss('create-subdomain')
+      console.error('Failed to create subdomain:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.create.error')
     },
   })
 }
@@ -91,6 +91,7 @@ export function useCreateSubdomain() {
 // 从组织中移除子域名
 export function useDeleteSubdomainFromOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { organizationId: number; targetId: number }) =>
@@ -99,19 +100,18 @@ export function useDeleteSubdomainFromOrganization() {
         targetIds: [data.targetId],
       }),
     onMutate: ({ organizationId, targetId }) => {
-      toast.loading('正在移除子域名...', { id: `delete-${organizationId}-${targetId}` })
+      toastMessages.loading('common.status.removing', {}, `delete-${organizationId}-${targetId}`)
     },
-    onSuccess: (_response, { organizationId }) => {
-      toast.dismiss(`delete-${organizationId}`)
-      toast.success('子域名已成功移除')
+    onSuccess: (_response, { organizationId, targetId }) => {
+      toastMessages.dismiss(`delete-${organizationId}-${targetId}`)
+      toastMessages.success('toast.asset.subdomain.delete.success')
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any, { organizationId, targetId }) => {
-      toast.dismiss(`delete-${organizationId}-${targetId}`)
-      console.error('移除子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('移除子域名失败，请查看控制台日志')
+      toastMessages.dismiss(`delete-${organizationId}-${targetId}`)
+      console.error('Failed to remove subdomain:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.delete.error')
     },
   })
 }
@@ -119,30 +119,25 @@ export function useDeleteSubdomainFromOrganization() {
 // 批量从组织中移除子域名
 export function useBatchDeleteSubdomainsFromOrganization() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { organizationId: number; domainIds: number[] }) => 
       SubdomainService.batchDeleteSubdomainsFromOrganization(data),
     onMutate: ({ organizationId }) => {
-      toast.loading('正在批量移除子域名...', { id: `batch-delete-${organizationId}` })
+      toastMessages.loading('common.status.batchRemoving', {}, `batch-delete-${organizationId}`)
     },
     onSuccess: (response, { organizationId }) => {
-      toast.dismiss(`batch-delete-${organizationId}`)
+      toastMessages.dismiss(`batch-delete-${organizationId}`)
       const successCount = response.successCount || 0
-      const failedCount = response.failedCount || 0
-      if (failedCount > 0) {
-        toast.warning(`批量移除完成（成功：${successCount}，失败：${failedCount}）`)
-      } else {
-        toast.success(`成功移除 ${successCount} 个子域名`)
-      }
+      toastMessages.success('toast.asset.subdomain.delete.bulkSuccess', { count: successCount })
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any, { organizationId }) => {
-      toast.dismiss(`batch-delete-${organizationId}`)
-      console.error('批量移除子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('批量移除失败，请查看控制台日志')
+      toastMessages.dismiss(`batch-delete-${organizationId}`)
+      console.error('Failed to batch remove subdomains:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.delete.error')
     },
   })
 }
@@ -150,18 +145,16 @@ export function useBatchDeleteSubdomainsFromOrganization() {
 // 删除单个子域名（使用单独的 DELETE API）
 export function useDeleteSubdomain() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => SubdomainService.deleteSubdomain(id),
     onMutate: (id) => {
-      toast.loading('正在删除子域名...', { id: `delete-subdomain-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-subdomain-${id}`)
     },
     onSuccess: (response, id) => {
-      toast.dismiss(`delete-subdomain-${id}`)
-      
-      // 显示删除成功信息
-      const { subdomainName } = response
-      toast.success(`子域名 "${subdomainName}" 已成功删除`)
+      toastMessages.dismiss(`delete-subdomain-${id}`)
+      toastMessages.success('toast.asset.subdomain.delete.success')
       
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
@@ -169,10 +162,9 @@ export function useDeleteSubdomain() {
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any, id) => {
-      toast.dismiss(`delete-subdomain-${id}`)
-      console.error('删除子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('删除子域名失败，请查看控制台日志')
+      toastMessages.dismiss(`delete-subdomain-${id}`)
+      console.error('Failed to delete subdomain:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.delete.error')
     },
   })
 }
@@ -180,29 +172,16 @@ export function useDeleteSubdomain() {
 // 批量删除子域名（使用统一的批量删除接口）
 export function useBatchDeleteSubdomains() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (ids: number[]) => SubdomainService.batchDeleteSubdomains(ids),
     onMutate: () => {
-      toast.loading('正在批量删除子域名...', { id: 'batch-delete-subdomains' })
+      toastMessages.loading('common.status.batchDeleting', {}, 'batch-delete-subdomains')
     },
     onSuccess: (response) => {
-      toast.dismiss('batch-delete-subdomains')
-      
-      // 显示级联删除信息
-      const cascadeInfo = Object.entries(response.cascadeDeleted || {})
-        .filter(([key, count]) => key !== 'asset.Subdomain' && count > 0)
-        .map(([key, count]) => {
-          const modelName = key.split('.')[1]
-          return `${modelName}: ${count}`
-        })
-        .join(', ')
-      
-      if (cascadeInfo) {
-        toast.success(`成功删除 ${response.deletedCount} 个子域名（级联删除: ${cascadeInfo}）`)
-      } else {
-        toast.success(`成功删除 ${response.deletedCount} 个子域名`)
-      }
+      toastMessages.dismiss('batch-delete-subdomains')
+      toastMessages.success('toast.asset.subdomain.delete.bulkSuccess', { count: response.deletedCount })
       
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
@@ -210,10 +189,9 @@ export function useBatchDeleteSubdomains() {
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any) => {
-      toast.dismiss('batch-delete-subdomains')
-      console.error('批量删除子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('批量删除失败，请查看控制台日志')
+      toastMessages.dismiss('batch-delete-subdomains')
+      console.error('Failed to batch delete subdomains:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.delete.error')
     },
   })
 }
@@ -221,24 +199,24 @@ export function useBatchDeleteSubdomains() {
 // 更新子域名
 export function useUpdateSubdomain() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: { name?: string; description?: string } }) =>
       SubdomainService.updateSubdomain({ id, ...data }),
     onMutate: ({ id }) => {
-      toast.loading('正在更新子域名...', { id: `update-subdomain-${id}` })
+      toastMessages.loading('common.status.updating', {}, `update-subdomain-${id}`)
     },
     onSuccess: (_response, { id }) => {
-      toast.dismiss(`update-subdomain-${id}`)
-      toast.success('更新成功')
+      toastMessages.dismiss(`update-subdomain-${id}`)
+      toastMessages.success('common.status.updateSuccess')
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
     onError: (error: any, { id }) => {
-      toast.dismiss(`update-subdomain-${id}`)
-      console.error('更新子域名失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      toast.error('更新子域名失败，请查看控制台日志')
+      toastMessages.dismiss(`update-subdomain-${id}`)
+      console.error('Failed to update subdomain:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'common.status.updateFailed')
     },
   })
 }
@@ -295,49 +273,40 @@ export function useScanSubdomains(
 // 批量创建子域名（绑定到目标）
 export function useBulkCreateSubdomains() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { targetId: number; subdomains: string[] }) =>
       SubdomainService.bulkCreateSubdomains(data.targetId, data.subdomains),
     onMutate: async () => {
-      toast.loading('正在批量创建子域名...', { id: 'bulk-create-subdomains' })
+      toastMessages.loading('common.status.batchCreating', {}, 'bulk-create-subdomains')
     },
     onSuccess: (response, { targetId }) => {
-      toast.dismiss('bulk-create-subdomains')
-      const { createdCount, skippedCount, invalidCount, mismatchedCount } = response
+      toastMessages.dismiss('bulk-create-subdomains')
+      const { createdCount, skippedCount = 0, invalidCount = 0, mismatchedCount = 0 } = response
+      const totalSkipped = skippedCount + invalidCount + mismatchedCount
       
-      let message = `成功创建 ${createdCount} 个子域名`
-      const details: string[] = []
-      
-      if (skippedCount > 0) {
-        details.push(`${skippedCount} 个重复`)
-      }
-      if (invalidCount > 0) {
-        details.push(`${invalidCount} 个格式无效`)
-      }
-      if (mismatchedCount > 0) {
-        details.push(`${mismatchedCount} 个不匹配`)
-      }
-      
-      if (details.length > 0) {
-        message += `（${details.join('，')}）`
-      }
-      
-      if (createdCount > 0) {
-        toast.success(message)
+      if (totalSkipped > 0) {
+        toastMessages.warning('toast.asset.subdomain.create.partialSuccess', { 
+          success: createdCount, 
+          skipped: totalSkipped 
+        })
+      } else if (createdCount > 0) {
+        toastMessages.success('toast.asset.subdomain.create.success', { count: createdCount })
       } else {
-        toast.warning(message)
+        toastMessages.warning('toast.asset.subdomain.create.partialSuccess', { 
+          success: 0, 
+          skipped: 0 
+        })
       }
       
-      // 刷新子域名列表
       queryClient.invalidateQueries({ queryKey: ['targets', targetId, 'subdomains'] })
       queryClient.invalidateQueries({ queryKey: ['subdomains'] })
     },
     onError: (error: any) => {
-      toast.dismiss('bulk-create-subdomains')
-      console.error('批量创建子域名失败:', error)
-      const errorMessage = error?.response?.data?.error || '批量创建失败，请查看控制台日志'
-      toast.error(errorMessage)
+      toastMessages.dismiss('bulk-create-subdomains')
+      console.error('Failed to bulk create subdomains:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.subdomain.create.error')
     },
   })
 }
diff --git a/frontend/hooks/use-system-logs.ts b/frontend/hooks/use-system-logs.ts
index 0480623a..a1d2f594 100644
--- a/frontend/hooks/use-system-logs.ts
+++ b/frontend/hooks/use-system-logs.ts
@@ -1,11 +1,12 @@
 import { useEffect, useRef } from "react"
 import { useQuery } from "@tanstack/react-query"
-import { toast } from "sonner"
 
 import { systemLogService } from "@/services/system-log.service"
+import { useToastMessages } from "@/lib/toast-helpers"
 
 export function useSystemLogs(options?: { lines?: number; enabled?: boolean }) {
   const hadErrorRef = useRef(false)
+  const toastMessages = useToastMessages()
 
   const query = useQuery({
     queryKey: ["system", "logs", { lines: options?.lines ?? null }],
@@ -19,14 +20,14 @@ export function useSystemLogs(options?: { lines?: number; enabled?: boolean }) {
   useEffect(() => {
     if (query.isError && !hadErrorRef.current) {
       hadErrorRef.current = true
-      toast.error("系统日志获取失败，请检查后端接口")
+      toastMessages.error('toast.systemLog.fetch.error')
     }
 
     if (query.isSuccess && hadErrorRef.current) {
       hadErrorRef.current = false
-      toast.success("系统日志连接已恢复")
+      toastMessages.success('toast.systemLog.fetch.recovered')
     }
-  }, [query.isError, query.isSuccess])
+  }, [query.isError, query.isSuccess, toastMessages])
 
   return query
 }
diff --git a/frontend/hooks/use-targets.ts b/frontend/hooks/use-targets.ts
index 38bdf37f..18d61456 100644
--- a/frontend/hooks/use-targets.ts
+++ b/frontend/hooks/use-targets.ts
@@ -2,7 +2,8 @@
  * Targets Hooks - 目标管理相关 hooks
  */
 import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import {
   getTargets,
   getTargetById,
@@ -110,15 +111,16 @@ export function useTarget(id: number, options?: { enabled?: boolean }) {
  */
 export function useCreateTarget() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateTargetRequest) => createTarget(data),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['targets'] })
-      toast.success('目标创建成功')
+      toastMessages.success('toast.target.create.success')
     },
-    onError: (error: Error) => {
-      toast.error(`创建失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.create.error')
     },
   })
 }
@@ -128,6 +130,7 @@ export function useCreateTarget() {
  */
 export function useUpdateTarget() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateTargetRequest }) =>
@@ -135,10 +138,10 @@ export function useUpdateTarget() {
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['targets', variables.id] })
-      toast.success('目标更新成功')
+      toastMessages.success('toast.target.update.success')
     },
-    onError: (error: Error) => {
-      toast.error(`更新失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.update.error')
     },
   })
 }
@@ -148,25 +151,26 @@ export function useUpdateTarget() {
  */
 export function useDeleteTarget() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => deleteTarget(id),
     onMutate: (id) => {
-      toast.loading('正在删除目标...', { id: `delete-target-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-target-${id}`)
     },
     onSuccess: (response, id) => {
-      toast.dismiss(`delete-target-${id}`)
+      toastMessages.dismiss(`delete-target-${id}`)
       
       // 显示删除成功信息
       const { targetName } = response
-      toast.success(`目标 "${targetName}" 已成功删除`)
+      toastMessages.success('toast.target.delete.success', { name: targetName })
       
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
     },
-    onError: (error: Error, id) => {
-      toast.dismiss(`delete-target-${id}`)
-      toast.error(`删除失败: ${error.message}`)
+    onError: (error: any, id) => {
+      toastMessages.dismiss(`delete-target-${id}`)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.delete.error')
     },
   })
 }
@@ -176,15 +180,16 @@ export function useDeleteTarget() {
  */
 export function useBatchDeleteTargets() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: BatchDeleteTargetsRequest) => batchDeleteTargets(data),
     onSuccess: (response) => {
       queryClient.invalidateQueries({ queryKey: ['targets'] })
-      toast.success(`成功删除 ${response.deletedCount} 个目标`)
+      toastMessages.success('toast.target.delete.bulkSuccess', { count: response.deletedCount })
     },
-    onError: (error: Error) => {
-      toast.error(`批量删除失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.delete.error')
     },
   })
 }
@@ -194,16 +199,17 @@ export function useBatchDeleteTargets() {
  */
 export function useBatchCreateTargets() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: BatchCreateTargetsRequest) => batchCreateTargets(data),
     onSuccess: (response) => {
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['organizations'] })
-      toast.success(response.message)
+      toastMessages.success('toast.target.create.bulkSuccess', { count: response.createdCount || 0 })
     },
-    onError: (error: Error) => {
-      toast.error(`批量创建失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.create.error')
     },
   })
 }
@@ -224,6 +230,7 @@ export function useTargetOrganizations(targetId: number, page = 1, pageSize = 10
  */
 export function useLinkTargetOrganizations() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ targetId, organizationIds }: { targetId: number; organizationIds: number[] }) =>
@@ -231,10 +238,10 @@ export function useLinkTargetOrganizations() {
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['targets', variables.targetId, 'organizations'] })
       queryClient.invalidateQueries({ queryKey: ['targets', variables.targetId] })
-      toast.success('组织关联成功')
+      toastMessages.success('toast.target.link.success')
     },
-    onError: (error: Error) => {
-      toast.error(`关联失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.link.error')
     },
   })
 }
@@ -244,6 +251,7 @@ export function useLinkTargetOrganizations() {
  */
 export function useUnlinkTargetOrganizations() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ targetId, organizationIds }: { targetId: number; organizationIds: number[] }) =>
@@ -251,10 +259,10 @@ export function useUnlinkTargetOrganizations() {
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['targets', variables.targetId, 'organizations'] })
       queryClient.invalidateQueries({ queryKey: ['targets', variables.targetId] })
-      toast.success('取消关联成功')
+      toastMessages.success('toast.target.unlink.success')
     },
-    onError: (error: Error) => {
-      toast.error(`取消关联失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.target.unlink.error')
     },
   })
 }
diff --git a/frontend/hooks/use-tools.ts b/frontend/hooks/use-tools.ts
index 5f1fb652..f2444510 100644
--- a/frontend/hooks/use-tools.ts
+++ b/frontend/hooks/use-tools.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { ToolService } from "@/services/tool.service"
 import type { Tool, GetToolsParams, CreateToolRequest, UpdateToolRequest } from "@/types/tool.types"
 
@@ -35,35 +36,25 @@ export function useTools(params: GetToolsParams = {}) {
 // 创建工具
 export function useCreateTool() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateToolRequest) => ToolService.createTool(data),
     onMutate: async () => {
-      toast.loading('正在创建工具...', { id: 'create-tool' })
+      toastMessages.loading('common.status.creating', {}, 'create-tool')
     },
-    onSuccess: (response) => {
-      toast.dismiss('create-tool')
-      
-      // 打印后端响应
-      console.log('创建工具成功')
-      console.log('后端响应:', response)
-      
-      toast.success('创建成功')
-      
-      // 刷新工具列表和分类列表
+    onSuccess: () => {
+      toastMessages.dismiss('create-tool')
+      toastMessages.success('toast.tool.create.success')
       queryClient.invalidateQueries({ 
         queryKey: toolKeys.all,
         refetchType: 'active' 
       })
     },
     onError: (error: any) => {
-      toast.dismiss('create-tool')
-      
-      console.error('创建工具失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      // 前端自己构造错误提示
-      toast.error('创建工具失败，请查看控制台日志')
+      toastMessages.dismiss('create-tool')
+      console.error('Failed to create tool:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.tool.create.error')
     },
   })
 }
@@ -71,34 +62,26 @@ export function useCreateTool() {
 // 更新工具
 export function useUpdateTool() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateToolRequest }) => 
       ToolService.updateTool(id, data),
     onMutate: async () => {
-      toast.loading('正在更新工具...', { id: 'update-tool' })
+      toastMessages.loading('common.status.updating', {}, 'update-tool')
     },
-    onSuccess: (response) => {
-      toast.dismiss('update-tool')
-      
-      console.log('更新工具成功')
-      console.log('后端响应:', response)
-      
-      toast.success('更新成功')
-      
-      // 刷新工具列表
+    onSuccess: () => {
+      toastMessages.dismiss('update-tool')
+      toastMessages.success('toast.tool.update.success')
       queryClient.invalidateQueries({ 
         queryKey: toolKeys.all,
         refetchType: 'active' 
       })
     },
     onError: (error: any) => {
-      toast.dismiss('update-tool')
-      
-      console.error('更新工具失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      toast.error('更新工具失败，请查看控制台日志')
+      toastMessages.dismiss('update-tool')
+      console.error('Failed to update tool:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.tool.update.error')
     },
   })
 }
@@ -106,32 +89,25 @@ export function useUpdateTool() {
 // 删除工具
 export function useDeleteTool() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => ToolService.deleteTool(id),
     onMutate: async () => {
-      toast.loading('正在删除工具...', { id: 'delete-tool' })
+      toastMessages.loading('common.status.deleting', {}, 'delete-tool')
     },
-    onSuccess: (response) => {
-      toast.dismiss('delete-tool')
-      
-      console.log('删除工具成功')
-      
-      toast.success('删除成功')
-      
-      // 刷新工具列表
+    onSuccess: () => {
+      toastMessages.dismiss('delete-tool')
+      toastMessages.success('toast.tool.delete.success')
       queryClient.invalidateQueries({ 
         queryKey: toolKeys.all,
         refetchType: 'active' 
       })
     },
     onError: (error: any) => {
-      toast.dismiss('delete-tool')
-      
-      console.error('删除工具失败:', error)
-      console.error('后端响应:', error?.response?.data || error)
-      
-      toast.error('删除工具失败，请查看控制台日志')
+      toastMessages.dismiss('delete-tool')
+      console.error('Failed to delete tool:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.tool.delete.error')
     },
   })
 }
diff --git a/frontend/hooks/use-websites.ts b/frontend/hooks/use-websites.ts
index 3d7976ba..0e7f6e17 100644
--- a/frontend/hooks/use-websites.ts
+++ b/frontend/hooks/use-websites.ts
@@ -1,5 +1,6 @@
 import { useQuery, useMutation, useQueryClient, keepPreviousData } from '@tanstack/react-query'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import { WebsiteService } from '@/services/website.service'
 import type { WebSite, WebSiteListResponse } from '@/types/website.types'
 
@@ -108,28 +109,25 @@ export function useScanWebSites(
 // 删除单个网站（使用单独的 DELETE API）
 export function useDeleteWebSite() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: websiteService.deleteWebSite,
     onMutate: (id) => {
-      toast.loading('正在删除网站...', { id: `delete-website-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-website-${id}`)
     },
     onSuccess: (response, id) => {
-      toast.dismiss(`delete-website-${id}`)
+      toastMessages.dismiss(`delete-website-${id}`)
+      toastMessages.success('toast.asset.website.delete.success')
       
-      // 显示删除成功信息
-      const { websiteUrl } = response
-      toast.success(`网站 "${websiteUrl}" 已成功删除`)
-      
-      // 刷新相关查询
       queryClient.invalidateQueries({ queryKey: ['target-websites'] })
       queryClient.invalidateQueries({ queryKey: ['scan-websites'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['scans'] })
     },
-    onError: (error: Error, id) => {
-      toast.dismiss(`delete-website-${id}`)
-      toast.error(error.message || '删除网站失败')
+    onError: (error: any, id) => {
+      toastMessages.dismiss(`delete-website-${id}`)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.website.delete.error')
     },
   })
 }
@@ -137,39 +135,25 @@ export function useDeleteWebSite() {
 // 批量删除网站（使用统一的批量删除接口）
 export function useBulkDeleteWebSites() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: websiteService.bulkDeleteWebSites,
     onMutate: () => {
-      toast.loading('正在批量删除网站...', { id: 'bulk-delete-websites' })
+      toastMessages.loading('common.status.batchDeleting', {}, 'bulk-delete-websites')
     },
     onSuccess: (response) => {
-      toast.dismiss('bulk-delete-websites')
+      toastMessages.dismiss('bulk-delete-websites')
+      toastMessages.success('toast.asset.website.delete.bulkSuccess', { count: response.deletedCount })
       
-      // 显示级联删除信息
-      const cascadeInfo = Object.entries(response.cascadeDeleted || {})
-        .filter(([key, count]) => key !== 'asset.WebSite' && count > 0)
-        .map(([key, count]) => {
-          const modelName = key.split('.')[1]
-          return `${modelName}: ${count}`
-        })
-        .join(', ')
-      
-      if (cascadeInfo) {
-        toast.success(`成功删除 ${response.deletedCount} 个网站（级联删除: ${cascadeInfo}）`)
-      } else {
-        toast.success(`成功删除 ${response.deletedCount} 个网站`)
-      }
-      
-      // 刷新相关查询
       queryClient.invalidateQueries({ queryKey: ['target-websites'] })
       queryClient.invalidateQueries({ queryKey: ['scan-websites'] })
       queryClient.invalidateQueries({ queryKey: ['targets'] })
       queryClient.invalidateQueries({ queryKey: ['scans'] })
     },
-    onError: (error: Error) => {
-      toast.dismiss('bulk-delete-websites')
-      toast.error(error.message || '批量删除网站失败')
+    onError: (error: any) => {
+      toastMessages.dismiss('bulk-delete-websites')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.website.delete.error')
     },
   })
 }
@@ -178,32 +162,31 @@ export function useBulkDeleteWebSites() {
 // 批量创建网站（绑定到目标）
 export function useBulkCreateWebsites() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: { targetId: number; urls: string[] }) =>
       WebsiteService.bulkCreateWebsites(data.targetId, data.urls),
     onMutate: async () => {
-      toast.loading('正在批量创建网站...', { id: 'bulk-create-websites' })
+      toastMessages.loading('common.status.batchCreating', {}, 'bulk-create-websites')
     },
     onSuccess: (response, { targetId }) => {
-      toast.dismiss('bulk-create-websites')
+      toastMessages.dismiss('bulk-create-websites')
       const { createdCount } = response
       
       if (createdCount > 0) {
-        toast.success(`成功创建 ${createdCount} 个网站`)
+        toastMessages.success('toast.asset.website.create.success', { count: createdCount })
       } else {
-        toast.warning('没有新网站被创建（可能已存在）')
+        toastMessages.warning('toast.asset.website.create.partialSuccess', { success: 0, skipped: 0 })
       }
       
-      // 刷新网站列表
       queryClient.invalidateQueries({ queryKey: ['target-websites', targetId] })
       queryClient.invalidateQueries({ queryKey: ['scan-websites'] })
     },
     onError: (error: any) => {
-      toast.dismiss('bulk-create-websites')
-      console.error('批量创建网站失败:', error)
-      const errorMessage = error?.response?.data?.error || '批量创建失败，请查看控制台日志'
-      toast.error(errorMessage)
+      toastMessages.dismiss('bulk-create-websites')
+      console.error('Failed to bulk create websites:', error)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.asset.website.create.error')
     },
   })
 }
diff --git a/frontend/hooks/use-wordlists.ts b/frontend/hooks/use-wordlists.ts
index 348206bf..7a1ff1f4 100644
--- a/frontend/hooks/use-wordlists.ts
+++ b/frontend/hooks/use-wordlists.ts
@@ -1,7 +1,8 @@
 "use client"
 
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query"
-import { toast } from "sonner"
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 import {
   getWordlists,
   uploadWordlist,
@@ -25,20 +26,21 @@ export function useWordlists(params?: { page?: number; pageSize?: number }) {
 // Upload wordlist
 export function useUploadWordlist() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation<{}, Error, { name: string; description?: string; file: File }>({
     mutationFn: (payload) => uploadWordlist(payload),
     onMutate: () => {
-      toast.loading("Uploading wordlist...", { id: "upload-wordlist" })
+      toastMessages.loading('common.status.uploading', {}, 'upload-wordlist')
     },
     onSuccess: () => {
-      toast.dismiss("upload-wordlist")
-      toast.success("Wordlist uploaded successfully")
+      toastMessages.dismiss('upload-wordlist')
+      toastMessages.success('toast.wordlist.upload.success')
       queryClient.invalidateQueries({ queryKey: ["wordlists"] })
     },
-    onError: (error) => {
-      toast.dismiss("upload-wordlist")
-      toast.error(`Upload failed: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.dismiss('upload-wordlist')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.wordlist.upload.error')
     },
   })
 }
@@ -46,20 +48,21 @@ export function useUploadWordlist() {
 // Delete wordlist
 export function useDeleteWordlist() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation<void, Error, number>({
     mutationFn: (id: number) => deleteWordlist(id),
     onMutate: (id) => {
-      toast.loading("Deleting wordlist...", { id: `delete-wordlist-${id}` })
+      toastMessages.loading('common.status.deleting', {}, `delete-wordlist-${id}`)
     },
     onSuccess: (_data, id) => {
-      toast.dismiss(`delete-wordlist-${id}`)
-      toast.success("Wordlist deleted successfully")
+      toastMessages.dismiss(`delete-wordlist-${id}`)
+      toastMessages.success('toast.wordlist.delete.success')
       queryClient.invalidateQueries({ queryKey: ["wordlists"] })
     },
-    onError: (error, id) => {
-      toast.dismiss(`delete-wordlist-${id}`)
-      toast.error(`Delete failed: ${error.message}`)
+    onError: (error: any, id) => {
+      toastMessages.dismiss(`delete-wordlist-${id}`)
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.wordlist.delete.error')
     },
   })
 }
@@ -76,21 +79,22 @@ export function useWordlistContent(id: number | null) {
 // Update wordlist content
 export function useUpdateWordlistContent() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation<Wordlist, Error, { id: number; content: string }>({
     mutationFn: ({ id, content }) => updateWordlistContent(id, content),
     onMutate: () => {
-      toast.loading("Saving...", { id: "update-wordlist-content" })
+      toastMessages.loading('common.actions.saving', {}, 'update-wordlist-content')
     },
     onSuccess: (data) => {
-      toast.dismiss("update-wordlist-content")
-      toast.success("Wordlist saved successfully")
+      toastMessages.dismiss('update-wordlist-content')
+      toastMessages.success('toast.wordlist.update.success')
       queryClient.invalidateQueries({ queryKey: ["wordlists"] })
       queryClient.invalidateQueries({ queryKey: ["wordlist-content", data.id] })
     },
-    onError: (error) => {
-      toast.dismiss("update-wordlist-content")
-      toast.error(`Save failed: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.dismiss('update-wordlist-content')
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.wordlist.update.error')
     },
   })
 }
diff --git a/frontend/hooks/use-workers.ts b/frontend/hooks/use-workers.ts
index d78fa818..c3f45a05 100644
--- a/frontend/hooks/use-workers.ts
+++ b/frontend/hooks/use-workers.ts
@@ -5,7 +5,8 @@
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { workerService } from '@/services/worker.service'
 import type { CreateWorkerRequest, UpdateWorkerRequest } from '@/types/worker.types'
-import { toast } from 'sonner'
+import { useToastMessages } from '@/lib/toast-helpers'
+import { getErrorCode } from '@/lib/response-parser'
 
 // Query Keys
 export const workerKeys = {
@@ -42,15 +43,16 @@ export function useWorker(id: number) {
  */
 export function useCreateWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (data: CreateWorkerRequest) => workerService.createWorker(data),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: workerKeys.lists() })
-      toast.success('Worker 节点创建成功')
+      toastMessages.success('toast.worker.create.success')
     },
-    onError: (error: Error) => {
-      toast.error(`创建失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.create.error')
     },
   })
 }
@@ -60,6 +62,7 @@ export function useCreateWorker() {
  */
 export function useUpdateWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: ({ id, data }: { id: number; data: UpdateWorkerRequest }) =>
@@ -67,10 +70,10 @@ export function useUpdateWorker() {
     onSuccess: (_: unknown, { id }: { id: number; data: UpdateWorkerRequest }) => {
       queryClient.invalidateQueries({ queryKey: workerKeys.lists() })
       queryClient.invalidateQueries({ queryKey: workerKeys.detail(id) })
-      toast.success('Worker 节点更新成功')
+      toastMessages.success('toast.worker.update.success')
     },
-    onError: (error: Error) => {
-      toast.error(`更新失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.update.error')
     },
   })
 }
@@ -80,19 +83,19 @@ export function useUpdateWorker() {
  */
 export function useDeleteWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => workerService.deleteWorker(id),
     onSuccess: () => {
-      // 立即刷新活跃的列表查询
       queryClient.invalidateQueries({ 
         queryKey: workerKeys.lists(),
         refetchType: 'active',
       })
-      toast.success('Worker 节点已删除')
+      toastMessages.success('toast.worker.delete.success')
     },
-    onError: (error: Error) => {
-      toast.error(`删除失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.delete.error')
     },
   })
 }
@@ -102,16 +105,17 @@ export function useDeleteWorker() {
  */
 export function useDeployWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => workerService.deployWorker(id),
     onSuccess: (_: unknown, id: number) => {
       queryClient.invalidateQueries({ queryKey: workerKeys.detail(id) })
       queryClient.invalidateQueries({ queryKey: workerKeys.lists() })
-      toast.success('部署已启动')
+      toastMessages.success('toast.worker.deploy.success')
     },
-    onError: (error: Error) => {
-      toast.error(`部署失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.deploy.error')
     },
   })
 }
@@ -121,16 +125,17 @@ export function useDeployWorker() {
  */
 export function useRestartWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => workerService.restartWorker(id),
     onSuccess: (_: unknown, id: number) => {
       queryClient.invalidateQueries({ queryKey: workerKeys.detail(id) })
       queryClient.invalidateQueries({ queryKey: workerKeys.lists() })
-      toast.success('Worker 正在重启')
+      toastMessages.success('toast.worker.restart.success')
     },
-    onError: (error: Error) => {
-      toast.error(`重启失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.restart.error')
     },
   })
 }
@@ -140,16 +145,17 @@ export function useRestartWorker() {
  */
 export function useStopWorker() {
   const queryClient = useQueryClient()
+  const toastMessages = useToastMessages()
 
   return useMutation({
     mutationFn: (id: number) => workerService.stopWorker(id),
     onSuccess: (_: unknown, id: number) => {
       queryClient.invalidateQueries({ queryKey: workerKeys.detail(id) })
       queryClient.invalidateQueries({ queryKey: workerKeys.lists() })
-      toast.success('Worker 已停止')
+      toastMessages.success('toast.worker.stop.success')
     },
-    onError: (error: Error) => {
-      toast.error(`停止失败: ${error.message}`)
+    onError: (error: any) => {
+      toastMessages.errorFromCode(getErrorCode(error?.response?.data), 'toast.worker.stop.error')
     },
   })
 }
diff --git a/frontend/lib/error-code-map.ts b/frontend/lib/error-code-map.ts
new file mode 100644
index 00000000..557fadfa
--- /dev/null
+++ b/frontend/lib/error-code-map.ts
@@ -0,0 +1,70 @@
+/**
+ * 错误码到 i18n 键的映射
+ * 
+ * 采用简化方案（参考 Stripe、GitHub 等大厂做法）：
+ * - 只映射通用错误码（5-10 个）
+ * - 未知错误码使用 errors.unknown
+ * - 错误码与后端 ErrorCodes 类保持一致
+ * 
+ * 后端错误码定义: backend/apps/common/error_codes.py
+ */
+
+/**
+ * 错误码到 i18n 键的映射表
+ * 
+ * 键: 后端返回的错误码（大写字母和下划线）
+ * 值: 前端 i18n 键（在 messages/en.json 和 messages/zh.json 中定义）
+ */
+export const ERROR_CODE_MAP: Record<string, string> = {
+  // 通用错误码（8 个，与后端 ErrorCodes 类一致）
+  VALIDATION_ERROR: 'errors.validation',
+  NOT_FOUND: 'errors.notFound',
+  PERMISSION_DENIED: 'errors.permissionDenied',
+  SERVER_ERROR: 'errors.serverError',
+  BAD_REQUEST: 'errors.badRequest',
+  CONFLICT: 'errors.conflict',
+  UNAUTHORIZED: 'errors.unauthorized',
+  RATE_LIMITED: 'errors.rateLimited',
+};
+
+/**
+ * 默认错误 i18n 键
+ * 用于未知错误码的回退
+ */
+export const DEFAULT_ERROR_KEY = 'errors.unknown';
+
+/**
+ * 获取错误码对应的 i18n 键
+ * 
+ * @param code - 后端返回的错误码
+ * @returns 对应的 i18n 键，未知错误码返回 'errors.unknown'
+ * 
+ * @example
+ * const errorKey = getErrorI18nKey('NOT_FOUND');
+ * // 返回: 'errors.notFound'
+ * 
+ * const unknownKey = getErrorI18nKey('SOME_UNKNOWN_ERROR');
+ * // 返回: 'errors.unknown'
+ */
+export function getErrorI18nKey(code: string): string {
+  return ERROR_CODE_MAP[code] ?? DEFAULT_ERROR_KEY;
+}
+
+/**
+ * 检查错误码是否已知
+ * 
+ * @param code - 后端返回的错误码
+ * @returns 如果错误码在映射表中返回 true
+ */
+export function isKnownErrorCode(code: string): boolean {
+  return code in ERROR_CODE_MAP;
+}
+
+/**
+ * 获取所有已知的错误码列表
+ * 
+ * @returns 错误码数组
+ */
+export function getAllErrorCodes(): string[] {
+  return Object.keys(ERROR_CODE_MAP);
+}
diff --git a/frontend/lib/response-parser.ts b/frontend/lib/response-parser.ts
new file mode 100644
index 00000000..7fb0f1c9
--- /dev/null
+++ b/frontend/lib/response-parser.ts
@@ -0,0 +1,232 @@
+/**
+ * API 响应解析器
+ * 
+ * 统一处理后端 API 响应，支持新的标准化响应格式：
+ * - 成功响应: { data?: T, meta?: {...} }
+ * - 错误响应: { error: { code: string, message?: string, details?: unknown[] } }
+ * 
+ * 同时保持对旧格式的向后兼容性：
+ * - 旧格式: { code: string, state: string, message: string, data?: T }
+ */
+
+/**
+ * 标准化成功响应类型
+ */
+export interface ApiSuccessResponse<T = unknown> {
+  data?: T;
+  meta?: {
+    count?: number;
+    total?: number;
+    page?: number;
+    pageSize?: number;
+    [key: string]: unknown;
+  };
+}
+
+/**
+ * 标准化错误响应类型
+ */
+export interface ApiErrorResponse {
+  error: {
+    code: string;
+    message?: string;
+    details?: unknown[];
+  };
+}
+
+/**
+ * 统一 API 响应类型（新格式）
+ */
+export type ApiResponse<T = unknown> = ApiSuccessResponse<T> | ApiErrorResponse;
+
+/**
+ * 旧版 API 响应类型（向后兼容）
+ */
+export interface LegacyApiResponse<T = unknown> {
+  code: string;
+  state: string;
+  message: string;
+  data?: T;
+}
+
+/**
+ * 判断响应是否为错误响应
+ * 
+ * @param response - API 响应对象
+ * @returns 如果是错误响应返回 true
+ * 
+ * @example
+ * const response = await api.get('/scans');
+ * if (isErrorResponse(response)) {
+ *   console.error('Error:', response.error.code);
+ * }
+ */
+export function isErrorResponse(response: unknown): response is ApiErrorResponse {
+  return (
+    typeof response === 'object' &&
+    response !== null &&
+    'error' in response &&
+    typeof (response as ApiErrorResponse).error === 'object' &&
+    (response as ApiErrorResponse).error !== null &&
+    typeof (response as ApiErrorResponse).error.code === 'string'
+  );
+}
+
+/**
+ * 判断响应是否为成功响应
+ * 
+ * @param response - API 响应对象
+ * @returns 如果是成功响应返回 true
+ */
+export function isSuccessResponse<T = unknown>(
+  response: unknown
+): response is ApiSuccessResponse<T> {
+  // 新格式：没有 error 字段
+  if (typeof response !== 'object' || response === null) {
+    return false;
+  }
+  
+  // 如果有 error 字段，则不是成功响应
+  if ('error' in response) {
+    return false;
+  }
+  
+  return true;
+}
+
+/**
+ * 判断响应是否为旧版格式
+ * 
+ * @param response - API 响应对象
+ * @returns 如果是旧版格式返回 true
+ */
+export function isLegacyResponse<T = unknown>(
+  response: unknown
+): response is LegacyApiResponse<T> {
+  return (
+    typeof response === 'object' &&
+    response !== null &&
+    'state' in response &&
+    'code' in response &&
+    typeof (response as LegacyApiResponse).state === 'string'
+  );
+}
+
+/**
+ * 判断旧版响应是否为错误
+ * 
+ * @param response - 旧版 API 响应对象
+ * @returns 如果是错误响应返回 true
+ */
+export function isLegacyErrorResponse<T = unknown>(
+  response: LegacyApiResponse<T>
+): boolean {
+  return response.state !== 'success';
+}
+
+/**
+ * 从响应中解析数据
+ * 
+ * 支持新旧两种响应格式：
+ * - 新格式: { data: T }
+ * - 旧格式: { state: 'success', data: T }
+ * 
+ * @param response - API 响应对象
+ * @returns 解析出的数据，如果是错误响应则返回 null
+ * 
+ * @example
+ * const response = await api.get('/scans');
+ * const data = parseResponse<Scan[]>(response);
+ * if (data) {
+ *   console.log('Scans:', data);
+ * }
+ */
+export function parseResponse<T>(response: unknown): T | null {
+  // 处理新格式错误响应
+  if (isErrorResponse(response)) {
+    return null;
+  }
+  
+  // 处理旧格式响应
+  if (isLegacyResponse<T>(response)) {
+    if (isLegacyErrorResponse(response)) {
+      return null;
+    }
+    return response.data ?? null;
+  }
+  
+  // 处理新格式成功响应
+  if (isSuccessResponse<T>(response)) {
+    return response.data ?? null;
+  }
+  
+  return null;
+}
+
+/**
+ * 从响应中获取错误码
+ * 
+ * 支持新旧两种响应格式：
+ * - 新格式: { error: { code: 'ERROR_CODE' } }
+ * - 旧格式: { state: 'error', code: '400' }
+ * 
+ * @param response - API 响应对象
+ * @returns 错误码字符串，如果不是错误响应则返回 null
+ * 
+ * @example
+ * const response = await api.delete('/scans/123');
+ * const errorCode = getErrorCode(response);
+ * if (errorCode) {
+ *   toast.error(t(`errors.${errorCode}`));
+ * }
+ */
+export function getErrorCode(response: unknown): string | null {
+  // 处理新格式错误响应
+  if (isErrorResponse(response)) {
+    return response.error.code;
+  }
+  
+  // 处理旧格式错误响应
+  if (isLegacyResponse(response) && isLegacyErrorResponse(response)) {
+    // 旧格式的 code 是 HTTP 状态码，不是错误码
+    // 返回通用错误码
+    return 'SERVER_ERROR';
+  }
+  
+  return null;
+}
+
+/**
+ * 从响应中获取错误消息（用于调试）
+ * 
+ * @param response - API 响应对象
+ * @returns 错误消息字符串，如果不是错误响应则返回 null
+ */
+export function getErrorMessage(response: unknown): string | null {
+  // 处理新格式错误响应
+  if (isErrorResponse(response)) {
+    return response.error.message ?? null;
+  }
+  
+  // 处理旧格式错误响应
+  if (isLegacyResponse(response) && isLegacyErrorResponse(response)) {
+    return response.message;
+  }
+  
+  return null;
+}
+
+/**
+ * 从响应中获取元数据
+ * 
+ * @param response - API 响应对象
+ * @returns 元数据对象，如果没有则返回 null
+ */
+export function getResponseMeta(
+  response: unknown
+): ApiSuccessResponse['meta'] | null {
+  if (isSuccessResponse(response)) {
+    return response.meta ?? null;
+  }
+  return null;
+}
diff --git a/frontend/lib/toast-helpers.ts b/frontend/lib/toast-helpers.ts
new file mode 100644
index 00000000..bbe7d75a
--- /dev/null
+++ b/frontend/lib/toast-helpers.ts
@@ -0,0 +1,234 @@
+/**
+ * Toast 消息辅助函数
+ * 
+ * 提供 i18n 感知的 toast 消息显示功能：
+ * - success(): 显示成功消息
+ * - error(): 显示错误消息
+ * - errorFromCode(): 根据错误码显示错误消息
+ * - loading(): 显示加载消息
+ * - dismiss(): 关闭指定 toast
+ * 
+ * 使用方式：
+ * ```tsx
+ * function MyComponent() {
+ *   const toastMessages = useToastMessages();
+ *   
+ *   const handleDelete = async () => {
+ *     try {
+ *       await deleteItem(id);
+ *       toastMessages.success('toast.item.delete.success', { name: item.name });
+ *     } catch (error) {
+ *       toastMessages.errorFromCode(getErrorCode(error));
+ *     }
+ *   };
+ * }
+ * ```
+ */
+
+import { toast } from 'sonner';
+import { useTranslations } from 'next-intl';
+import { getErrorI18nKey, DEFAULT_ERROR_KEY } from './error-code-map';
+
+/**
+ * Toast 消息参数类型
+ * 支持字符串和数字类型的插值变量
+ */
+export type ToastParams = Record<string, string | number>;
+
+/**
+ * Toast 消息 Hook 返回类型
+ */
+export interface ToastMessages {
+  /**
+   * 显示成功消息
+   * @param key - i18n 消息键
+   * @param params - 插值参数
+   * @param toastId - 可选的 toast ID（用于替换或关闭）
+   */
+  success: (key: string, params?: ToastParams, toastId?: string) => void;
+  
+  /**
+   * 显示错误消息
+   * @param key - i18n 消息键
+   * @param params - 插值参数
+   * @param toastId - 可选的 toast ID（用于替换或关闭）
+   */
+  error: (key: string, params?: ToastParams, toastId?: string) => void;
+  
+  /**
+   * 根据错误码显示错误消息
+   * @param code - 后端返回的错误码
+   * @param fallbackKey - 未知错误码的回退键（默认 'errors.unknown'）
+   * @param toastId - 可选的 toast ID（用于替换或关闭）
+   */
+  errorFromCode: (code: string | null, fallbackKey?: string, toastId?: string) => void;
+  
+  /**
+   * 显示加载消息
+   * @param key - i18n 消息键
+   * @param params - 插值参数
+   * @param toastId - toast ID（用于后续关闭）
+   */
+  loading: (key: string, params?: ToastParams, toastId?: string) => void;
+  
+  /**
+   * 显示警告消息
+   * @param key - i18n 消息键
+   * @param params - 插值参数
+   * @param toastId - 可选的 toast ID（用于替换或关闭）
+   */
+  warning: (key: string, params?: ToastParams, toastId?: string) => void;
+  
+  /**
+   * 关闭指定 toast
+   * @param toastId - toast ID
+   */
+  dismiss: (toastId: string) => void;
+}
+
+/**
+ * i18n 感知的 Toast 消息 Hook
+ * 
+ * 提供统一的 toast 消息显示接口，自动处理 i18n 翻译和参数插值。
+ * 
+ * @returns ToastMessages 对象，包含 success、error、errorFromCode、loading、warning、dismiss 方法
+ * 
+ * @example
+ * ```tsx
+ * function DeleteButton({ item }) {
+ *   const toastMessages = useToastMessages();
+ *   const { mutate: deleteItem } = useDeleteItem();
+ *   
+ *   const handleDelete = () => {
+ *     toastMessages.loading('toast.item.delete.loading', {}, 'delete-item');
+ *     
+ *     deleteItem(item.id, {
+ *       onSuccess: () => {
+ *         toastMessages.dismiss('delete-item');
+ *         toastMessages.success('toast.item.delete.success', { name: item.name });
+ *       },
+ *       onError: (error) => {
+ *         toastMessages.dismiss('delete-item');
+ *         toastMessages.errorFromCode(getErrorCode(error.response?.data));
+ *       }
+ *     });
+ *   };
+ *   
+ *   return <button onClick={handleDelete}>Delete</button>;
+ * }
+ * ```
+ */
+export function useToastMessages(): ToastMessages {
+  // 使用根命名空间，允许访问所有翻译键
+  const t = useTranslations();
+  
+  return {
+    success: (key: string, params?: ToastParams, toastId?: string) => {
+      const message = t(key, params);
+      if (toastId) {
+        toast.success(message, { id: toastId });
+      } else {
+        toast.success(message);
+      }
+    },
+    
+    error: (key: string, params?: ToastParams, toastId?: string) => {
+      const message = t(key, params);
+      if (toastId) {
+        toast.error(message, { id: toastId });
+      } else {
+        toast.error(message);
+      }
+    },
+    
+    errorFromCode: (code: string | null, fallbackKey = DEFAULT_ERROR_KEY, toastId?: string) => {
+      const errorKey = code ? getErrorI18nKey(code) : fallbackKey;
+      const message = t(errorKey);
+      if (toastId) {
+        toast.error(message, { id: toastId });
+      } else {
+        toast.error(message);
+      }
+    },
+    
+    loading: (key: string, params?: ToastParams, toastId?: string) => {
+      const message = t(key, params);
+      if (toastId) {
+        toast.loading(message, { id: toastId });
+      } else {
+        toast.loading(message);
+      }
+    },
+    
+    warning: (key: string, params?: ToastParams, toastId?: string) => {
+      const message = t(key, params);
+      if (toastId) {
+        toast.warning(message, { id: toastId });
+      } else {
+        toast.warning(message);
+      }
+    },
+    
+    dismiss: (toastId: string) => {
+      toast.dismiss(toastId);
+    },
+  };
+}
+
+/**
+ * 非 Hook 版本的 toast 辅助函数
+ * 
+ * 用于不在 React 组件中的场景（如 API 拦截器）。
+ * 注意：这些函数不支持 i18n，只能显示原始字符串。
+ * 
+ * @example
+ * ```ts
+ * // 在 API 拦截器中使用
+ * apiClient.interceptors.response.use(
+ *   (response) => response,
+ *   (error) => {
+ *     if (error.response?.status === 401) {
+ *       showToast.error('Session expired, please login again');
+ *     }
+ *     return Promise.reject(error);
+ *   }
+ * );
+ * ```
+ */
+export const showToast = {
+  success: (message: string, toastId?: string) => {
+    if (toastId) {
+      toast.success(message, { id: toastId });
+    } else {
+      toast.success(message);
+    }
+  },
+  
+  error: (message: string, toastId?: string) => {
+    if (toastId) {
+      toast.error(message, { id: toastId });
+    } else {
+      toast.error(message);
+    }
+  },
+  
+  loading: (message: string, toastId?: string) => {
+    if (toastId) {
+      toast.loading(message, { id: toastId });
+    } else {
+      toast.loading(message);
+    }
+  },
+  
+  warning: (message: string, toastId?: string) => {
+    if (toastId) {
+      toast.warning(message, { id: toastId });
+    } else {
+      toast.warning(message);
+    }
+  },
+  
+  dismiss: (toastId: string) => {
+    toast.dismiss(toastId);
+  },
+};
diff --git a/frontend/messages/en.json b/frontend/messages/en.json
index b3204251..79a70f43 100644
--- a/frontend/messages/en.json
+++ b/frontend/messages/en.json
@@ -209,7 +209,18 @@
       "active": "Active",
       "inactive": "Inactive",
       "enabled": "Enabled",
-      "disabled": "Disabled"
+      "disabled": "Disabled",
+      "creating": "Creating...",
+      "updating": "Updating...",
+      "deleting": "Deleting...",
+      "removing": "Removing...",
+      "unlinking": "Unlinking...",
+      "batchCreating": "Batch creating...",
+      "batchDeleting": "Batch deleting...",
+      "batchRemoving": "Batch removing...",
+      "updateSuccess": "Update successful",
+      "updateFailed": "Update failed",
+      "uploading": "Uploading..."
     },
     "pagination": {
       "page": "Page {current} of {total}",
@@ -1225,7 +1236,286 @@
     "invalidJsonFile": "Invalid JSON file",
     "importSuccess": "Import successful",
     "importFailed": "Import failed",
-    "loadScanHistoryFailed": "Failed to load scan history"
+    "loadScanHistoryFailed": "Failed to load scan history",
+    "scan": {
+      "quick": {
+        "success": "Started {count} scan tasks",
+        "error": "Failed to start scan"
+      },
+      "stop": {
+        "success": "Scan stopped, {count} tasks cancelled"
+      },
+      "delete": {
+        "success": "Deleted scan task: {name}",
+        "bulkSuccess": "Deleted {count} scan tasks"
+      },
+      "initiate": {
+        "success": "Scan initiated successfully",
+        "error": "Failed to initiate scan"
+      }
+    },
+    "scheduledScan": {
+      "create": {
+        "success": "Scheduled scan created successfully",
+        "error": "Failed to create scheduled scan"
+      },
+      "update": {
+        "success": "Scheduled scan updated successfully",
+        "error": "Failed to update scheduled scan"
+      },
+      "delete": {
+        "success": "Scheduled scan deleted successfully",
+        "error": "Failed to delete scheduled scan"
+      },
+      "toggle": {
+        "enabled": "Scheduled scan enabled",
+        "disabled": "Scheduled scan disabled",
+        "error": "Failed to toggle scheduled scan"
+      }
+    },
+    "target": {
+      "create": {
+        "success": "Target created successfully",
+        "bulkSuccess": "Created {count} targets",
+        "error": "Failed to create target"
+      },
+      "update": {
+        "success": "Target updated successfully",
+        "error": "Failed to update target"
+      },
+      "delete": {
+        "success": "Target \"{name}\" deleted",
+        "bulkSuccess": "Deleted {count} targets",
+        "error": "Failed to delete target"
+      },
+      "link": {
+        "success": "Target linked to organization",
+        "error": "Failed to link target"
+      },
+      "unlink": {
+        "success": "Target unlinked from organization",
+        "bulkSuccess": "Unlinked {count} targets",
+        "error": "Failed to unlink target"
+      }
+    },
+    "organization": {
+      "create": {
+        "success": "Organization created successfully",
+        "error": "Failed to create organization"
+      },
+      "update": {
+        "success": "Organization updated successfully",
+        "error": "Failed to update organization"
+      },
+      "delete": {
+        "success": "Organization \"{name}\" deleted",
+        "bulkSuccess": "Deleted {count} organizations",
+        "error": "Failed to delete organization"
+      }
+    },
+    "asset": {
+      "subdomain": {
+        "create": {
+          "success": "Created {count} subdomains",
+          "partialSuccess": "Created {success} subdomains, skipped {skipped}",
+          "error": "Failed to create subdomains"
+        },
+        "delete": {
+          "success": "Subdomain deleted",
+          "bulkSuccess": "Deleted {count} subdomains",
+          "error": "Failed to delete subdomain"
+        }
+      },
+      "website": {
+        "create": {
+          "success": "Created {count} websites",
+          "partialSuccess": "Created {success} websites, skipped {skipped}",
+          "error": "Failed to create websites"
+        },
+        "delete": {
+          "success": "Website deleted",
+          "bulkSuccess": "Deleted {count} websites",
+          "error": "Failed to delete website"
+        }
+      },
+      "endpoint": {
+        "create": {
+          "success": "Created {count} endpoints",
+          "partialSuccess": "Created {success} endpoints, skipped {skipped}",
+          "error": "Failed to create endpoints"
+        },
+        "delete": {
+          "success": "Endpoint deleted",
+          "bulkSuccess": "Deleted {count} endpoints",
+          "error": "Failed to delete endpoint"
+        }
+      },
+      "directory": {
+        "create": {
+          "success": "Created {count} directories",
+          "partialSuccess": "Created {success} directories, skipped {skipped}",
+          "error": "Failed to create directories"
+        },
+        "delete": {
+          "success": "Directory deleted",
+          "bulkSuccess": "Deleted {count} directories",
+          "error": "Failed to delete directory"
+        }
+      }
+    },
+    "auth": {
+      "login": {
+        "success": "Login successful"
+      },
+      "logout": {
+        "success": "Logged out"
+      },
+      "changePassword": {
+        "success": "Password changed successfully",
+        "error": "Failed to change password"
+      }
+    },
+    "worker": {
+      "create": {
+        "success": "Worker created successfully",
+        "error": "Failed to create worker"
+      },
+      "update": {
+        "success": "Worker updated successfully",
+        "error": "Failed to update worker"
+      },
+      "delete": {
+        "success": "Worker deleted successfully",
+        "error": "Failed to delete worker"
+      },
+      "deploy": {
+        "success": "Worker deployment started",
+        "error": "Failed to deploy worker"
+      },
+      "restart": {
+        "success": "Worker is restarting",
+        "error": "Failed to restart worker"
+      },
+      "stop": {
+        "success": "Worker stopped",
+        "error": "Failed to stop worker"
+      }
+    },
+    "nucleiRepo": {
+      "create": {
+        "success": "Repository added successfully",
+        "error": "Failed to add repository"
+      },
+      "update": {
+        "success": "Repository updated successfully",
+        "error": "Failed to update repository"
+      },
+      "delete": {
+        "success": "Repository deleted successfully",
+        "error": "Failed to delete repository"
+      },
+      "sync": {
+        "success": "Repository synced successfully",
+        "error": "Failed to sync repository"
+      }
+    },
+    "wordlist": {
+      "upload": {
+        "success": "Wordlist uploaded successfully",
+        "error": "Failed to upload wordlist"
+      },
+      "update": {
+        "success": "Wordlist updated successfully",
+        "error": "Failed to update wordlist"
+      },
+      "delete": {
+        "success": "Wordlist deleted successfully",
+        "error": "Failed to delete wordlist"
+      }
+    },
+    "notification": {
+      "settings": {
+        "success": "Notification settings saved",
+        "error": "Failed to save notification settings"
+      },
+      "markRead": {
+        "success": "Marked as read",
+        "error": "Failed to mark as read"
+      },
+      "connection": {
+        "error": "Notification connection error: {message}"
+      }
+    },
+    "tool": {
+      "create": {
+        "success": "Tool created successfully",
+        "error": "Failed to create tool"
+      },
+      "update": {
+        "success": "Tool updated successfully",
+        "error": "Failed to update tool"
+      },
+      "delete": {
+        "success": "Tool deleted successfully",
+        "error": "Failed to delete tool"
+      }
+    },
+    "engine": {
+      "create": {
+        "success": "Engine created successfully",
+        "error": "Failed to create engine"
+      },
+      "update": {
+        "success": "Engine updated successfully",
+        "error": "Failed to update engine"
+      },
+      "delete": {
+        "success": "Engine deleted successfully",
+        "error": "Failed to delete engine"
+      }
+    },
+    "command": {
+      "create": {
+        "success": "Command created successfully",
+        "error": "Failed to create command"
+      },
+      "update": {
+        "success": "Command updated successfully",
+        "error": "Failed to update command"
+      },
+      "delete": {
+        "success": "Command deleted successfully",
+        "bulkSuccess": "Deleted {count} commands",
+        "error": "Failed to delete command"
+      }
+    },
+    "nucleiTemplate": {
+      "refresh": {
+        "loading": "Syncing templates...",
+        "success": "Templates synced successfully",
+        "error": "Failed to sync templates"
+      },
+      "upload": {
+        "success": "Template uploaded successfully",
+        "error": "Failed to upload template"
+      },
+      "save": {
+        "success": "Template saved successfully",
+        "error": "Failed to save template"
+      }
+    },
+    "nucleiGit": {
+      "settings": {
+        "success": "Git settings saved successfully",
+        "error": "Failed to save Git settings"
+      }
+    },
+    "systemLog": {
+      "fetch": {
+        "error": "Failed to fetch system logs, please check backend",
+        "recovered": "System log connection recovered"
+      }
+    }
   },
   "quickScan": {
     "title": "Quick Scan",
@@ -1488,5 +1778,16 @@
       "bulkAdd": "Bulk Add",
       "formatInvalid": "Invalid format"
     }
+  },
+  "errors": {
+    "unknown": "Operation failed, please try again later",
+    "validation": "Invalid input data",
+    "notFound": "Resource not found",
+    "permissionDenied": "Permission denied",
+    "serverError": "Server error, please try again later",
+    "badRequest": "Invalid request format",
+    "conflict": "Resource conflict, please check and try again",
+    "unauthorized": "Please login first",
+    "rateLimited": "Too many requests, please try again later"
   }
 }
diff --git a/frontend/messages/zh.json b/frontend/messages/zh.json
index c07502f1..315f52bd 100644
--- a/frontend/messages/zh.json
+++ b/frontend/messages/zh.json
@@ -209,7 +209,18 @@
       "active": "活跃",
       "inactive": "未激活",
       "enabled": "已启用",
-      "disabled": "已禁用"
+      "disabled": "已禁用",
+      "creating": "正在创建...",
+      "updating": "正在更新...",
+      "deleting": "正在删除...",
+      "removing": "正在移除...",
+      "unlinking": "正在解除关联...",
+      "batchCreating": "正在批量创建...",
+      "batchDeleting": "正在批量删除...",
+      "batchRemoving": "正在批量移除...",
+      "updateSuccess": "更新成功",
+      "updateFailed": "更新失败",
+      "uploading": "正在上传..."
     },
     "pagination": {
       "page": "第 {current} 页，共 {total} 页",
@@ -1225,7 +1236,286 @@
     "invalidJsonFile": "无效的 JSON 文件",
     "importSuccess": "导入成功",
     "importFailed": "导入失败",
-    "loadScanHistoryFailed": "加载扫描历史失败"
+    "loadScanHistoryFailed": "加载扫描历史失败",
+    "scan": {
+      "quick": {
+        "success": "已启动 {count} 个扫描任务",
+        "error": "启动扫描失败"
+      },
+      "stop": {
+        "success": "扫描已停止，已撤销 {count} 个任务"
+      },
+      "delete": {
+        "success": "已删除扫描任务: {name}",
+        "bulkSuccess": "已删除 {count} 个扫描任务"
+      },
+      "initiate": {
+        "success": "扫描发起成功",
+        "error": "发起扫描失败"
+      }
+    },
+    "scheduledScan": {
+      "create": {
+        "success": "定时扫描创建成功",
+        "error": "创建定时扫描失败"
+      },
+      "update": {
+        "success": "定时扫描更新成功",
+        "error": "更新定时扫描失败"
+      },
+      "delete": {
+        "success": "定时扫描删除成功",
+        "error": "删除定时扫描失败"
+      },
+      "toggle": {
+        "enabled": "定时扫描已启用",
+        "disabled": "定时扫描已禁用",
+        "error": "切换定时扫描状态失败"
+      }
+    },
+    "target": {
+      "create": {
+        "success": "目标创建成功",
+        "bulkSuccess": "已创建 {count} 个目标",
+        "error": "创建目标失败"
+      },
+      "update": {
+        "success": "目标更新成功",
+        "error": "更新目标失败"
+      },
+      "delete": {
+        "success": "目标 \"{name}\" 已删除",
+        "bulkSuccess": "已删除 {count} 个目标",
+        "error": "删除目标失败"
+      },
+      "link": {
+        "success": "目标已关联到组织",
+        "error": "关联目标失败"
+      },
+      "unlink": {
+        "success": "目标已从组织解除关联",
+        "bulkSuccess": "已解除 {count} 个目标的关联",
+        "error": "解除关联失败"
+      }
+    },
+    "organization": {
+      "create": {
+        "success": "组织创建成功",
+        "error": "创建组织失败"
+      },
+      "update": {
+        "success": "组织更新成功",
+        "error": "更新组织失败"
+      },
+      "delete": {
+        "success": "组织 \"{name}\" 已删除",
+        "bulkSuccess": "已删除 {count} 个组织",
+        "error": "删除组织失败"
+      }
+    },
+    "asset": {
+      "subdomain": {
+        "create": {
+          "success": "已创建 {count} 个子域名",
+          "partialSuccess": "已创建 {success} 个子域名，跳过 {skipped} 个",
+          "error": "创建子域名失败"
+        },
+        "delete": {
+          "success": "子域名已删除",
+          "bulkSuccess": "已删除 {count} 个子域名",
+          "error": "删除子域名失败"
+        }
+      },
+      "website": {
+        "create": {
+          "success": "已创建 {count} 个网站",
+          "partialSuccess": "已创建 {success} 个网站，跳过 {skipped} 个",
+          "error": "创建网站失败"
+        },
+        "delete": {
+          "success": "网站已删除",
+          "bulkSuccess": "已删除 {count} 个网站",
+          "error": "删除网站失败"
+        }
+      },
+      "endpoint": {
+        "create": {
+          "success": "已创建 {count} 个端点",
+          "partialSuccess": "已创建 {success} 个端点，跳过 {skipped} 个",
+          "error": "创建端点失败"
+        },
+        "delete": {
+          "success": "端点已删除",
+          "bulkSuccess": "已删除 {count} 个端点",
+          "error": "删除端点失败"
+        }
+      },
+      "directory": {
+        "create": {
+          "success": "已创建 {count} 个目录",
+          "partialSuccess": "已创建 {success} 个目录，跳过 {skipped} 个",
+          "error": "创建目录失败"
+        },
+        "delete": {
+          "success": "目录已删除",
+          "bulkSuccess": "已删除 {count} 个目录",
+          "error": "删除目录失败"
+        }
+      }
+    },
+    "auth": {
+      "login": {
+        "success": "登录成功"
+      },
+      "logout": {
+        "success": "已登出"
+      },
+      "changePassword": {
+        "success": "密码修改成功",
+        "error": "修改密码失败"
+      }
+    },
+    "worker": {
+      "create": {
+        "success": "节点创建成功",
+        "error": "创建节点失败"
+      },
+      "update": {
+        "success": "节点更新成功",
+        "error": "更新节点失败"
+      },
+      "delete": {
+        "success": "节点删除成功",
+        "error": "删除节点失败"
+      },
+      "deploy": {
+        "success": "节点部署已启动",
+        "error": "部署节点失败"
+      },
+      "restart": {
+        "success": "节点正在重启",
+        "error": "重启节点失败"
+      },
+      "stop": {
+        "success": "节点已停止",
+        "error": "停止节点失败"
+      }
+    },
+    "nucleiRepo": {
+      "create": {
+        "success": "仓库添加成功",
+        "error": "添加仓库失败"
+      },
+      "update": {
+        "success": "仓库更新成功",
+        "error": "更新仓库失败"
+      },
+      "delete": {
+        "success": "仓库删除成功",
+        "error": "删除仓库失败"
+      },
+      "sync": {
+        "success": "仓库同步成功",
+        "error": "同步仓库失败"
+      }
+    },
+    "wordlist": {
+      "upload": {
+        "success": "字典上传成功",
+        "error": "上传字典失败"
+      },
+      "update": {
+        "success": "字典更新成功",
+        "error": "更新字典失败"
+      },
+      "delete": {
+        "success": "字典删除成功",
+        "error": "删除字典失败"
+      }
+    },
+    "notification": {
+      "settings": {
+        "success": "通知设置已保存",
+        "error": "保存通知设置失败"
+      },
+      "markRead": {
+        "success": "已标记为已读",
+        "error": "标记已读失败"
+      },
+      "connection": {
+        "error": "通知连接错误: {message}"
+      }
+    },
+    "tool": {
+      "create": {
+        "success": "工具创建成功",
+        "error": "创建工具失败"
+      },
+      "update": {
+        "success": "工具更新成功",
+        "error": "更新工具失败"
+      },
+      "delete": {
+        "success": "工具删除成功",
+        "error": "删除工具失败"
+      }
+    },
+    "engine": {
+      "create": {
+        "success": "引擎创建成功",
+        "error": "创建引擎失败"
+      },
+      "update": {
+        "success": "引擎更新成功",
+        "error": "更新引擎失败"
+      },
+      "delete": {
+        "success": "引擎删除成功",
+        "error": "删除引擎失败"
+      }
+    },
+    "command": {
+      "create": {
+        "success": "命令创建成功",
+        "error": "创建命令失败"
+      },
+      "update": {
+        "success": "命令更新成功",
+        "error": "更新命令失败"
+      },
+      "delete": {
+        "success": "命令删除成功",
+        "bulkSuccess": "已删除 {count} 个命令",
+        "error": "删除命令失败"
+      }
+    },
+    "nucleiTemplate": {
+      "refresh": {
+        "loading": "正在同步模板...",
+        "success": "模板同步成功",
+        "error": "同步模板失败"
+      },
+      "upload": {
+        "success": "模板上传成功",
+        "error": "上传模板失败"
+      },
+      "save": {
+        "success": "模板保存成功",
+        "error": "保存模板失败"
+      }
+    },
+    "nucleiGit": {
+      "settings": {
+        "success": "Git 设置保存成功",
+        "error": "保存 Git 设置失败"
+      }
+    },
+    "systemLog": {
+      "fetch": {
+        "error": "系统日志获取失败，请检查后端接口",
+        "recovered": "系统日志连接已恢复"
+      }
+    }
   },
   "quickScan": {
     "title": "快速扫描",
@@ -1488,5 +1778,16 @@
       "bulkAdd": "批量添加",
       "formatInvalid": "格式无效"
     }
+  },
+  "errors": {
+    "unknown": "操作失败，请稍后重试",
+    "validation": "输入数据无效",
+    "notFound": "资源未找到",
+    "permissionDenied": "权限不足",
+    "serverError": "服务器错误，请稍后重试",
+    "badRequest": "请求格式错误",
+    "conflict": "资源冲突，请检查后重试",
+    "unauthorized": "请先登录",
+    "rateLimited": "请求过于频繁，请稍后重试"
   }
 }