diff --git a/WebApi/Controllers/AuthController.cs b/WebApi/Controllers/AuthController.cs
index e6578e4..1bdacf5 100644
--- a/WebApi/Controllers/AuthController.cs
+++ b/WebApi/Controllers/AuthController.cs
@@ -36,11 +36,7 @@ public class AuthController : ControllerBase
         if (string.IsNullOrEmpty(request.Password) || request.Password != _authSettings.Password)
         {
             _logger.LogWarning("登录失败: 密码错误");
-            return new BaseResponse<LoginResponse>
-            {
-                Success = false,
-                Message = "密码错误"
-            };
+            return "密码错误".Fail<LoginResponse>();
         }
 
         // 生成JWT Token
@@ -49,15 +45,11 @@ public class AuthController : ControllerBase
 
         _logger.LogInformation("用户登录成功");
 
-        return new BaseResponse<LoginResponse>
+        return new LoginResponse
         {
-            Success = true,
-            Data = new LoginResponse
-            {
-                Token = token,
-                ExpiresAt = expiresAt
-            }
-        };
+            Token = token,
+            ExpiresAt = expiresAt
+        }.Ok();
     }
 
     private string GenerateJwtToken()
diff --git a/WebApi/Controllers/BillImportController.cs b/WebApi/Controllers/BillImportController.cs
index 86f94b9..4adf0fb 100644
--- a/WebApi/Controllers/BillImportController.cs
+++ b/WebApi/Controllers/BillImportController.cs
@@ -17,7 +17,7 @@ public class BillImportController(
     /// <param name="type">账单类型（Alipay | WeChat）</param>
     /// <returns></returns>
     [HttpPost]
-    public async Task<BaseResponse<object>> UploadFile(
+    public async Task<BaseResponse> UploadFile(
         [FromForm] IFormFile file,
         [FromForm] string type
     )
@@ -27,12 +27,12 @@ public class BillImportController(
             // 验证参数
             if (file.Length == 0)
             {
-                return BaseResponse<object>.Fail("请选择要上传的文件");
+                return "请选择要上传的文件".Fail();
             }
 
             if (string.IsNullOrWhiteSpace(type) || (type != "Alipay" && type != "WeChat"))
             {
-                return BaseResponse<object>.Fail("账单类型参数错误，必须是 Alipay 或 WeChat");
+                return "账单类型参数错误，必须是 Alipay 或 WeChat".Fail();
             }
 
             // 验证文件类型
@@ -40,14 +40,14 @@ public class BillImportController(
             var fileExtension = Path.GetExtension(file.FileName).ToLowerInvariant();
             if (!allowedExtensions.Contains(fileExtension))
             {
-                return BaseResponse<object>.Fail("只支持 CSV 或 Excel 文件格式");
+                return "只支持 CSV 或 Excel 文件格式".Fail();
             }
 
             // 验证文件大小（10MB限制）
             const long maxFileSize = 10 * 1024 * 1024;
             if (file.Length > maxFileSize)
             {
-                return BaseResponse<object>.Fail("文件大小不能超过 10MB");
+                return "文件大小不能超过 10MB".Fail();
             }
 
             // 生成唯一文件名
@@ -69,16 +69,12 @@ public class BillImportController(
                 }
             }
 
-            return new BaseResponse<object>
-            {
-                Success = ok,
-                Message = message
-            };
+            return message.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "文件上传失败，类型: {Type}", type);
-            return BaseResponse<object>.Fail($"文件上传失败: {ex.Message}");
+            return $"文件上传失败: {ex.Message}".Fail();
         }
     }
 }
diff --git a/WebApi/Controllers/Dto/BaseResponse.cs b/WebApi/Controllers/Dto/BaseResponse.cs
index ab47912..b0fae8c 100644
--- a/WebApi/Controllers/Dto/BaseResponse.cs
+++ b/WebApi/Controllers/Dto/BaseResponse.cs
@@ -1,5 +1,54 @@
 namespace WebApi.Controllers.Dto;
 
+public static class BaseResponseExtensions
+{
+    public static BaseResponse<T> Ok<T>(this T response)
+    {
+        return new BaseResponse<T>
+        {
+            Success = true,
+            Data = response
+        };
+    }
+
+    public static BaseResponse<T> Ok<T>(this T response, string message)
+    {
+        return new BaseResponse<T>
+        {
+            Success = true,
+            Data = response,
+            Message = message
+        };
+    }
+
+    public static BaseResponse Ok(this string message)
+    {
+        return new BaseResponse
+        {
+            Success = true,
+            Message = message
+        };
+    }
+
+    public static BaseResponse<T> Fail<T>(this string message)
+    {
+        return new BaseResponse<T>
+        {
+            Success = false,
+            Message = message
+        };
+    }
+
+    public static BaseResponse Fail(this string message)
+    {
+        return new BaseResponse
+        {
+            Success = false,
+            Message = message
+        };
+    }
+}
+
 public class BaseResponse
 {
     /// <summary>
@@ -28,6 +77,15 @@ public class BaseResponse
             Success = true
         };
     }
+
+    public static BaseResponse Done(string message)
+    {
+        return new BaseResponse
+        {
+            Success = true,
+            Message = message
+        };
+    }
 }
 
 public class BaseResponse<T> : BaseResponse
diff --git a/WebApi/Controllers/EmailMessageController.cs b/WebApi/Controllers/EmailMessageController.cs
index 481adc4..9ccafb5 100644
--- a/WebApi/Controllers/EmailMessageController.cs
+++ b/WebApi/Controllers/EmailMessageController.cs
@@ -61,23 +61,19 @@ public class EmailMessageController(
             var email = await emailRepository.GetByIdAsync(id);
             if (email == null)
             {
-                return BaseResponse<EmailMessageDto>.Fail("邮件不存在");
+                return "邮件不存在".Fail<EmailMessageDto>();
             }
 
             // 获取账单数量
             var transactionCount = await transactionRepository.GetCountByEmailIdAsync(id);
             var emailDto = EmailMessageDto.FromEntity(email, transactionCount);
 
-            return new BaseResponse<EmailMessageDto>
-            {
-                Success = true,
-                Data = emailDto
-            };
+            return emailDto.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取邮件详情失败，邮件ID: {EmailId}", id);
-            return BaseResponse<EmailMessageDto>.Fail($"获取邮件详情失败: {ex.Message}");
+            return $"获取邮件详情失败: {ex.Message}".Fail<EmailMessageDto>();
         }
     }
 
@@ -88,20 +84,17 @@ public class EmailMessageController(
             var success = await emailRepository.DeleteAsync(id);
             if (success)
             {
-                return new BaseResponse
-                {
-                    Success = true
-                };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("删除邮件失败，邮件不存在");
+                return "删除邮件失败，邮件不存在".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "删除邮件失败，邮件ID: {EmailId}", id);
-            return BaseResponse.Fail($"删除邮件失败: {ex.Message}");
+            return $"删除邮件失败: {ex.Message}".Fail();
         }
     }
 
@@ -116,26 +109,23 @@ public class EmailMessageController(
             var email = await emailRepository.GetByIdAsync(id);
             if (email == null)
             {
-                return BaseResponse.Fail("邮件不存在");
+                return "邮件不存在".Fail();
             }
 
             var success = await emailHandleService.RefreshTransactionRecordsAsync(id);
             if (success)
             {
-                return new BaseResponse
-                {
-                    Success = true
-                };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("重新分析失败");
+                return "重新分析失败".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "重新分析邮件失败，邮件ID: {EmailId}", id);
-            return BaseResponse.Fail($"重新分析失败: {ex.Message}");
+            return $"重新分析失败: {ex.Message}".Fail();
         }
     }
 
@@ -148,16 +138,12 @@ public class EmailMessageController(
         try
         {
             await emailBackgroundService.SyncEmailsAsync();
-            return new BaseResponse
-            {
-                Success = true,
-                Message = "同步成功"
-            };
+            return "邮件同步成功".Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "同步邮件失败");
-            return BaseResponse.Fail($"同步邮件失败: {ex.Message}");
+            return $"同步邮件失败: {ex.Message}".Fail();
         }
     }
 }
diff --git a/WebApi/Controllers/JobController.cs b/WebApi/Controllers/JobController.cs
deleted file mode 100644
index e34f949..0000000
--- a/WebApi/Controllers/JobController.cs
+++ /dev/null
@@ -1,174 +0,0 @@
-using Microsoft.AspNetCore.Authorization;
-using Quartz;
-
-namespace WebApi.Controllers;
-
-/// <summary>
-/// 定时任务管理控制器
-/// </summary>
-[ApiController]
-[Route("api/[controller]")]
-public class JobController(
-    ISchedulerFactory schedulerFactory,
-    ILogger<JobController> logger) : ControllerBase
-{
-    /// <summary>
-    /// 手动触发邮件同步任务
-    /// </summary>
-    [HttpPost("sync-email")]
-    [Authorize]
-    public async Task<IActionResult> TriggerEmailSync()
-    {
-        try
-        {
-            var scheduler = await schedulerFactory.GetScheduler();
-            var jobKey = new JobKey("EmailSyncJob");
-            
-            // 立即触发任务
-            await scheduler.TriggerJob(jobKey);
-            
-            logger.LogInformation("手动触发邮件同步任务成功");
-            return Ok(new { message = "邮件同步任务已触发" });
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "触发邮件同步任务失败");
-            return StatusCode(500, new { message = "触发任务失败", error = ex.Message });
-        }
-    }
-
-    /// <summary>
-    /// 手动触发周期性账单任务
-    /// </summary>
-    [HttpPost("periodic-bill")]
-    [Authorize]
-    public async Task<IActionResult> TriggerPeriodicBill()
-    {
-        try
-        {
-            var scheduler = await schedulerFactory.GetScheduler();
-            var jobKey = new JobKey("PeriodicBillJob");
-            
-            // 立即触发任务
-            await scheduler.TriggerJob(jobKey);
-            
-            logger.LogInformation("手动触发周期性账单任务成功");
-            return Ok(new { message = "周期性账单任务已触发" });
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "触发周期性账单任务失败");
-            return StatusCode(500, new { message = "触发任务失败", error = ex.Message });
-        }
-    }
-
-    /// <summary>
-    /// 获取所有任务的状态
-    /// </summary>
-    [HttpGet("status")]
-    [Authorize]
-    public async Task<IActionResult> GetJobStatus()
-    {
-        try
-        {
-            var scheduler = await schedulerFactory.GetScheduler();
-            var jobGroups = await scheduler.GetJobGroupNames();
-            var jobStatuses = new List<object>();
-
-            foreach (var group in jobGroups)
-            {
-                var jobKeys = await scheduler.GetJobKeys(Quartz.Impl.Matchers.GroupMatcher<JobKey>.GroupEquals(group));
-                
-                foreach (var jobKey in jobKeys)
-                {
-                    var triggers = await scheduler.GetTriggersOfJob(jobKey);
-                    var jobDetail = await scheduler.GetJobDetail(jobKey);
-                    
-                    foreach (var trigger in triggers)
-                    {
-                        var triggerState = await scheduler.GetTriggerState(trigger.Key);
-                        var nextFireTime = trigger.GetNextFireTimeUtc();
-                        var previousFireTime = trigger.GetPreviousFireTimeUtc();
-                        
-                        jobStatuses.Add(new
-                        {
-                            jobName = jobKey.Name,
-                            jobGroup = jobKey.Group,
-                            triggerName = trigger.Key.Name,
-                            triggerState = triggerState.ToString(),
-                            nextFireTime = nextFireTime?.LocalDateTime,
-                            previousFireTime = previousFireTime?.LocalDateTime,
-                            description = trigger.Description,
-                            jobType = jobDetail?.JobType.Name
-                        });
-                    }
-                }
-            }
-
-            return Ok(jobStatuses);
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "获取任务状态失败");
-            return StatusCode(500, new { message = "获取任务状态失败", error = ex.Message });
-        }
-    }
-
-    /// <summary>
-    /// 暂停指定任务
-    /// </summary>
-    [HttpPost("pause/{jobName}")]
-    [Authorize]
-    public async Task<IActionResult> PauseJob(string jobName)
-    {
-        try
-        {
-            var scheduler = await schedulerFactory.GetScheduler();
-            var jobKey = new JobKey(jobName);
-            
-            if (!await scheduler.CheckExists(jobKey))
-            {
-                return NotFound(new { message = $"任务 {jobName} 不存在" });
-            }
-            
-            await scheduler.PauseJob(jobKey);
-            logger.LogInformation("任务 {JobName} 已暂停", jobName);
-            
-            return Ok(new { message = $"任务 {jobName} 已暂停" });
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "暂停任务 {JobName} 失败", jobName);
-            return StatusCode(500, new { message = "暂停任务失败", error = ex.Message });
-        }
-    }
-
-    /// <summary>
-    /// 恢复指定任务
-    /// </summary>
-    [HttpPost("resume/{jobName}")]
-    [Authorize]
-    public async Task<IActionResult> ResumeJob(string jobName)
-    {
-        try
-        {
-            var scheduler = await schedulerFactory.GetScheduler();
-            var jobKey = new JobKey(jobName);
-            
-            if (!await scheduler.CheckExists(jobKey))
-            {
-                return NotFound(new { message = $"任务 {jobName} 不存在" });
-            }
-            
-            await scheduler.ResumeJob(jobKey);
-            logger.LogInformation("任务 {JobName} 已恢复", jobName);
-            
-            return Ok(new { message = $"任务 {jobName} 已恢复" });
-        }
-        catch (Exception ex)
-        {
-            logger.LogError(ex, "恢复任务 {JobName} 失败", jobName);
-            return StatusCode(500, new { message = "恢复任务失败", error = ex.Message });
-        }
-    }
-}
diff --git a/WebApi/Controllers/LogController.cs b/WebApi/Controllers/LogController.cs
index 1639c44..0fb21b6 100644
--- a/WebApi/Controllers/LogController.cs
+++ b/WebApi/Controllers/LogController.cs
@@ -22,13 +22,7 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
             var logDirectory = Path.Combine(Directory.GetCurrentDirectory(), "logs");
             if (!Directory.Exists(logDirectory))
             {
-                return new PagedResponse<LogEntry>
-                {
-                    Success = true,
-                    Data = [],
-                    Total = 0,
-                    Message = "日志目录不存在"
-                };
+                return PagedResponse<LogEntry>.Fail("日志目录不存在");
             }
 
             // 确定要读取的日志文件
@@ -47,43 +41,25 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
             // 检查文件是否存在
             if (!System.IO.File.Exists(logFilePath))
             {
-                return new PagedResponse<LogEntry>
-                {
-                    Success = true,
-                    Data = [],
-                    Total = 0,
-                    Message = "日志文件不存在"
-                };
+                return PagedResponse<LogEntry>.Done([], 0);
             }
 
             // 流式读取日志（边读边过滤，满足条件后停止）
-            var (logEntries, total) = await ReadLogsStreamAsync(
-                logFilePath, 
-                pageIndex, 
-                pageSize, 
-                searchKeyword, 
+            var (logEntries, total) = await ReadLogsAsync(
+                logFilePath,
+                pageIndex,
+                pageSize,
+                searchKeyword,
                 logLevel);
 
             var pagedData = logEntries;
 
-            return new PagedResponse<LogEntry>
-            {
-                Success = true,
-                Data = pagedData.ToArray(),
-                Total = total,
-                Message = "获取日志成功"
-            };
+            return PagedResponse<LogEntry>.Done(pagedData.ToArray(), total);
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取日志失败");
-            return new PagedResponse<LogEntry>
-            {
-                Success = false,
-                Data = [],
-                Total = 0,
-                Message = $"获取日志失败: {ex.Message}"
-            };
+            return PagedResponse<LogEntry>.Fail($"获取日志失败: {ex.Message}");
         }
     }
 
@@ -91,14 +67,14 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
     /// 获取可用的日志日期列表
     /// </summary>
     [HttpGet]
-    public IActionResult GetAvailableDates()
+    public BaseResponse<string[]> GetAvailableDates()
     {
         try
         {
             var logDirectory = Path.Combine(Directory.GetCurrentDirectory(), "logs");
             if (!Directory.Exists(logDirectory))
             {
-                return Ok(new { success = true, data = new List<string>() });
+                return ((string[])[]).Ok();
             }
 
             var logFiles = Directory.GetFiles(logDirectory, "log-*.txt");
@@ -108,12 +84,12 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
                 .OrderByDescending(d => d)
                 .ToList();
 
-            return Ok(new { success = true, data = dates });
+            return dates.ToArray().Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取日志日期列表失败");
-            return Ok(new { success = false, message = $"获取日志日期列表失败: {ex.Message}" });
+            return $"获取日志日期列表失败: {ex.Message}".Fail<string[]>();
         }
     }
 
@@ -124,7 +100,7 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
     {
         var mergedLines = new List<string>();
         var currentLog = new StringBuilder();
-        
+
         // 日志行开始的正则表达式
         var logStartPattern = new System.Text.RegularExpressions.Regex(
             @"^\[\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3} [+-]\d{2}:\d{2}\]"
@@ -206,19 +182,17 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
     }
 
     /// <summary>
-    /// 流式读取日志（真正的流式：只读取需要的数据，满足后立即停止）
+    /// 读取日志
     /// </summary>
-    private async Task<(List<LogEntry> entries, int total)> ReadLogsStreamAsync(
+    private async Task<(List<LogEntry> entries, int total)> ReadLogsAsync(
         string path,
         int pageIndex,
         int pageSize,
         string? searchKeyword,
         string? logLevel)
     {
-        // 简化：一次性读取所有行，合并多行日志，过滤并在内存中分页
         var allLines = await ReadAllLinesAsync(path);
 
-        // 合并多行日志为独立条目
         var merged = MergeMultiLineLog(allLines);
 
         var parsed = new List<LogEntry>();
@@ -231,7 +205,6 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
             }
         }
 
-        // 倒序（最新在前）
         parsed.Reverse();
 
         var total = parsed.Count;
@@ -267,11 +240,11 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
     private async Task<string[]> ReadAllLinesAsync(string path)
     {
         var lines = new List<string>();
-        
+
         using (var fileStream = new FileStream(
-            path, 
-            FileMode.Open, 
-            FileAccess.Read, 
+            path,
+            FileMode.Open,
+            FileAccess.Read,
             FileShare.ReadWrite))
         using (var streamReader = new StreamReader(fileStream))
         {
@@ -281,7 +254,7 @@ public class LogController(ILogger<LogController> logger) : ControllerBase
                 lines.Add(line);
             }
         }
-        
+
         return lines.ToArray();
     }
 }
diff --git a/WebApi/Controllers/MessageRecordController.cs b/WebApi/Controllers/MessageRecordController.cs
index 75c16cc..07142ad 100644
--- a/WebApi/Controllers/MessageRecordController.cs
+++ b/WebApi/Controllers/MessageRecordController.cs
@@ -34,12 +34,12 @@ public class MessageRecordController(IMessageRecordService messageService, ILogg
         try
         {
             var count = await messageService.GetUnreadCountAsync();
-            return BaseResponse<long>.Done(count);
+            return count.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取未读消息数量失败");
-            return BaseResponse<long>.Fail($"获取未读消息数量失败: {ex.Message}");
+            return $"获取未读消息数量失败: {ex.Message}".Fail<long>();
         }
     }
 
@@ -52,12 +52,12 @@ public class MessageRecordController(IMessageRecordService messageService, ILogg
         try
         {
             var result = await messageService.MarkAsReadAsync(id);
-            return BaseResponse<bool>.Done(result);
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "标记消息已读失败，ID: {Id}", id);
-            return BaseResponse<bool>.Fail($"标记消息已读失败: {ex.Message}");
+            return $"标记消息已读失败: {ex.Message}".Fail<bool>();
         }
     }
 
@@ -70,12 +70,12 @@ public class MessageRecordController(IMessageRecordService messageService, ILogg
         try
         {
             var result = await messageService.MarkAllAsReadAsync();
-            return BaseResponse<bool>.Done(result);
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "全部标记已读失败");
-            return BaseResponse<bool>.Fail($"全部标记已读失败: {ex.Message}");
+            return $"全部标记已读失败: {ex.Message}".Fail<bool>();
         }
     }
 
@@ -88,12 +88,12 @@ public class MessageRecordController(IMessageRecordService messageService, ILogg
         try
         {
             var result = await messageService.DeleteAsync(id);
-            return BaseResponse<bool>.Done(result);
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "删除消息失败，ID: {Id}", id);
-            return BaseResponse<bool>.Fail($"删除消息失败: {ex.Message}");
+            return $"删除消息失败: {ex.Message}".Fail<bool>();
         }
     }
 
@@ -106,12 +106,12 @@ public class MessageRecordController(IMessageRecordService messageService, ILogg
         try
         {
             var result = await messageService.AddAsync(message);
-            return BaseResponse<bool>.Done(result);
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "新增消息失败");
-            return BaseResponse<bool>.Fail($"新增消息失败: {ex.Message}");
+            return $"新增消息失败: {ex.Message}".Fail<bool>();
         }
     }
 }
diff --git a/WebApi/Controllers/NotificationController.cs b/WebApi/Controllers/NotificationController.cs
index 4c719f5..a5ff1b7 100644
--- a/WebApi/Controllers/NotificationController.cs
+++ b/WebApi/Controllers/NotificationController.cs
@@ -10,11 +10,11 @@ public class NotificationController(INotificationService notificationService) :
         try
         {
             var key = await notificationService.GetVapidPublicKeyAsync();
-            return BaseResponse<string>.Done(key);
+            return key.Ok<string>();
         }
         catch (Exception ex)
         {
-            return BaseResponse<string>.Fail(ex.Message);
+            return ex.Message.Fail<string>();
         }
     }
 
@@ -27,7 +27,7 @@ public class NotificationController(INotificationService notificationService) :
         }
         catch (Exception ex)
         {
-            return BaseResponse.Fail(ex.Message);
+            return ex.Message.Fail();
         }
     }
     
@@ -40,7 +40,7 @@ public class NotificationController(INotificationService notificationService) :
         }
         catch (Exception ex)
         {
-            return BaseResponse.Fail(ex.Message);
+            return ex.Message.Fail();
         }
     }
 }
diff --git a/WebApi/Controllers/TransactionCategoryController.cs b/WebApi/Controllers/TransactionCategoryController.cs
index 19a9345..2bedc18 100644
--- a/WebApi/Controllers/TransactionCategoryController.cs
+++ b/WebApi/Controllers/TransactionCategoryController.cs
@@ -26,16 +26,12 @@ public class TransactionCategoryController(
                 categories = (await categoryRepository.GetAllAsync()).ToList();
             }
             
-            return new BaseResponse<List<TransactionCategory>>
-            {
-                Success = true,
-                Data = categories
-            };
+            return categories.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取分类列表失败");
-            return BaseResponse<List<TransactionCategory>>.Fail($"获取分类列表失败: {ex.Message}");
+            return $"获取分类列表失败: {ex.Message}".Fail<List<TransactionCategory>>();
         }
     }
 
@@ -50,19 +46,15 @@ public class TransactionCategoryController(
             var category = await categoryRepository.GetByIdAsync(id);
             if (category == null)
             {
-                return BaseResponse<TransactionCategory>.Fail("分类不存在");
+                return "分类不存在".Fail<TransactionCategory>();
             }
 
-            return new BaseResponse<TransactionCategory>
-            {
-                Success = true,
-                Data = category
-            };
+            return category.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取分类详情失败, Id: {Id}", id);
-            return BaseResponse<TransactionCategory>.Fail($"获取分类详情失败: {ex.Message}");
+            return $"获取分类详情失败: {ex.Message}".Fail<TransactionCategory>();
         }
     }
 
@@ -78,7 +70,7 @@ public class TransactionCategoryController(
             var existing = await categoryRepository.GetByNameAndTypeAsync(dto.Name, dto.Type);
             if (existing != null)
             {
-                return BaseResponse<long>.Fail("已存在相同名称的分类");
+                return "已存在相同名称的分类".Fail<long>();
             }
 
             var category = new TransactionCategory
@@ -90,21 +82,17 @@ public class TransactionCategoryController(
             var result = await categoryRepository.AddAsync(category);
             if (result)
             {
-                return new BaseResponse<long>
-                {
-                    Success = true,
-                    Data = category.Id
-                };
+                return category.Id.Ok();
             }
             else
             {
-                return BaseResponse<long>.Fail("创建分类失败");
+                return "创建分类失败".Fail<long>();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "创建分类失败, Dto: {@Dto}", dto);
-            return BaseResponse<long>.Fail($"创建分类失败: {ex.Message}");
+            return $"创建分类失败: {ex.Message}".Fail<long>();
         }
     }
 
@@ -119,7 +107,7 @@ public class TransactionCategoryController(
             var category = await categoryRepository.GetByIdAsync(dto.Id);
             if (category == null)
             {
-                return BaseResponse.Fail("分类不存在");
+                return "分类不存在".Fail();
             }
 
             // 如果修改了名称，检查同名
@@ -128,7 +116,7 @@ public class TransactionCategoryController(
                 var existing = await categoryRepository.GetByNameAndTypeAsync(dto.Name, category.Type);
                 if (existing != null && existing.Id != dto.Id)
                 {
-                    return BaseResponse.Fail("已存在相同名称的分类");
+                    return "已存在相同名称的分类".Fail();
                 }
 
                 // 同步更新交易记录中的分类名称
@@ -141,17 +129,17 @@ public class TransactionCategoryController(
             var success = await categoryRepository.UpdateAsync(category);
             if (success)
             {
-                return new BaseResponse { Success = true };
+                return "更新分类成功".Ok();
             }
             else
             {
-                return BaseResponse.Fail("更新分类失败");
+                return "更新分类失败".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "更新分类失败, Dto: {@Dto}", dto);
-            return BaseResponse.Fail($"更新分类失败: {ex.Message}");
+            return $"更新分类失败: {ex.Message}".Fail();
         }
     }
 
@@ -167,23 +155,23 @@ public class TransactionCategoryController(
             var inUse = await categoryRepository.IsCategoryInUseAsync(id);
             if (inUse)
             {
-                return BaseResponse.Fail("该分类已被使用，无法删除");
+                return "该分类已被使用，无法删除".Fail();
             }
 
             var success = await categoryRepository.DeleteAsync(id);
             if (success)
             {
-                return new BaseResponse { Success = true };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("删除分类失败，分类不存在");
+                return "删除分类失败，分类不存在".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "删除分类失败, Id: {Id}", id);
-            return BaseResponse.Fail($"删除分类失败: {ex.Message}");
+            return $"删除分类失败: {ex.Message}".Fail();
         }
     }
 
@@ -204,21 +192,17 @@ public class TransactionCategoryController(
             var result = await categoryRepository.AddRangeAsync(categories);
             if (result)
             {
-                return new BaseResponse<int>
-                {
-                    Success = true,
-                    Data = categories.Count
-                };
+                return categories.Count.Ok();
             }
             else
             {
-                return BaseResponse<int>.Fail("批量创建分类失败");
+                return "批量创建分类失败".Fail<int>();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "批量创建分类失败, Count: {Count}", dtoList.Count);
-            return BaseResponse<int>.Fail($"批量创建分类失败: {ex.Message}");
+            return $"批量创建分类失败: {ex.Message}".Fail<int>();
         }
     }
 }
diff --git a/WebApi/Controllers/TransactionPeriodicController.cs b/WebApi/Controllers/TransactionPeriodicController.cs
index c7a135a..5fdad73 100644
--- a/WebApi/Controllers/TransactionPeriodicController.cs
+++ b/WebApi/Controllers/TransactionPeriodicController.cs
@@ -53,19 +53,15 @@ public class TransactionPeriodicController(
             var periodic = await periodicRepository.GetByIdAsync(id);
             if (periodic == null)
             {
-                return BaseResponse<TransactionPeriodic>.Fail("周期性账单不存在");
+                return "周期性账单不存在".Fail<TransactionPeriodic>();
             }
 
-            return new BaseResponse<TransactionPeriodic>
-            {
-                Success = true,
-                Data = periodic
-            };
+            return periodic.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取周期性账单详情失败，ID: {Id}", id);
-            return BaseResponse<TransactionPeriodic>.Fail($"获取详情失败: {ex.Message}");
+            return $"获取详情失败: {ex.Message}".Fail<TransactionPeriodic>();
         }
     }
 
@@ -94,20 +90,15 @@ public class TransactionPeriodicController(
             var success = await periodicRepository.AddAsync(periodic);
             if (!success)
             {
-                return BaseResponse<TransactionPeriodic>.Fail("创建周期性账单失败");
+                return "创建周期性账单失败".Fail<TransactionPeriodic>();
             }
 
-            return new BaseResponse<TransactionPeriodic>
-            {
-                Success = true,
-                Data = periodic,
-                Message = "创建成功"
-            };
+            return periodic.Ok("创建成功");
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "创建周期性账单失败");
-            return BaseResponse<TransactionPeriodic>.Fail($"创建失败: {ex.Message}");
+            return $"创建失败: {ex.Message}".Fail<TransactionPeriodic>();
         }
     }
 
@@ -115,14 +106,14 @@ public class TransactionPeriodicController(
     /// 更新周期性账单
     /// </summary>
     [HttpPost]
-    public async Task<BaseResponse<object>> UpdateAsync([FromBody] UpdatePeriodicRequest request)
+    public async Task<BaseResponse> UpdateAsync([FromBody] UpdatePeriodicRequest request)
     {
         try
         {
             var periodic = await periodicRepository.GetByIdAsync(request.Id);
             if (periodic == null)
             {
-                return BaseResponse<object>.Fail("周期性账单不存在");
+                return "周期性账单不存在".Fail();
             }
 
             periodic.PeriodicType = request.PeriodicType;
@@ -140,19 +131,15 @@ public class TransactionPeriodicController(
             var success = await periodicRepository.UpdateAsync(periodic);
             if (!success)
             {
-                return BaseResponse<object>.Fail("更新周期性账单失败");
+                return "更新周期性账单失败".Fail();
             }
 
-            return new BaseResponse<object>
-            {
-                Success = true,
-                Message = "更新成功"
-            };
+            return "更新成功".Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "更新周期性账单失败，ID: {Id}", request.Id);
-            return BaseResponse<object>.Fail($"更新失败: {ex.Message}");
+            return $"更新失败: {ex.Message}".Fail();
         }
     }
 
@@ -160,26 +147,22 @@ public class TransactionPeriodicController(
     /// 删除周期性账单
     /// </summary>
     [HttpPost]
-    public async Task<BaseResponse<object>> DeleteByIdAsync([FromQuery] long id)
+    public async Task<BaseResponse> DeleteByIdAsync([FromQuery] long id)
     {
         try
         {
             var success = await periodicRepository.DeleteAsync(id);
             if (!success)
             {
-                return BaseResponse<object>.Fail("删除周期性账单失败");
+                return "删除周期性账单失败".Fail();
             }
 
-            return new BaseResponse<object>
-            {
-                Success = true,
-                Message = "删除成功"
-            };
+            return "删除成功".Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "删除周期性账单失败，ID: {Id}", id);
-            return BaseResponse<object>.Fail($"删除失败: {ex.Message}");
+            return $"删除失败: {ex.Message}".Fail();
         }
     }
 
@@ -187,14 +170,14 @@ public class TransactionPeriodicController(
     /// 启用/禁用周期性账单
     /// </summary>
     [HttpPost]
-    public async Task<BaseResponse<object>> ToggleEnabledAsync([FromQuery] long id, [FromQuery] bool enabled)
+    public async Task<BaseResponse> ToggleEnabledAsync([FromQuery] long id, [FromQuery] bool enabled)
     {
         try
         {
             var periodic = await periodicRepository.GetByIdAsync(id);
             if (periodic == null)
             {
-                return BaseResponse<object>.Fail("周期性账单不存在");
+                return "周期性账单不存在".Fail();
             }
 
             periodic.IsEnabled = enabled;
@@ -203,19 +186,15 @@ public class TransactionPeriodicController(
             var success = await periodicRepository.UpdateAsync(periodic);
             if (!success)
             {
-                return BaseResponse<object>.Fail("操作失败");
+                return "操作失败".Fail();
             }
 
-            return new BaseResponse<object>
-            {
-                Success = true,
-                Message = enabled ? "已启用" : "已禁用"
-            };
+            return (enabled ? "已启用" : "已禁用").Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "启用/禁用周期性账单失败，ID: {Id}", id);
-            return BaseResponse<object>.Fail($"操作失败: {ex.Message}");
+            return $"操作失败: {ex.Message}".Fail();
         }
     }
 }
diff --git a/WebApi/Controllers/TransactionRecordController.cs b/WebApi/Controllers/TransactionRecordController.cs
index 45546a3..94234de 100644
--- a/WebApi/Controllers/TransactionRecordController.cs
+++ b/WebApi/Controllers/TransactionRecordController.cs
@@ -72,19 +72,15 @@ public class TransactionRecordController(
             var transaction = await transactionRepository.GetByIdAsync(id);
             if (transaction == null)
             {
-                return BaseResponse<TransactionRecord>.Fail("交易记录不存在");
+                return "交易记录不存在".Fail<TransactionRecord>();
             }
 
-            return new BaseResponse<TransactionRecord>
-            {
-                Success = true,
-                Data = transaction
-            };
+            return transaction.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取交易记录详情失败，交易ID: {TransactionId}", id);
-            return BaseResponse<TransactionRecord>.Fail($"获取交易记录详情失败: {ex.Message}");
+            return $"获取交易记录详情失败: {ex.Message}".Fail<TransactionRecord>();
         }
     }
 
@@ -97,16 +93,12 @@ public class TransactionRecordController(
         try
         {
             var transactions = await transactionRepository.GetByEmailIdAsync(emailId);
-            return new BaseResponse<List<TransactionRecord>>
-            {
-                Success = true,
-                Data = transactions
-            };
+            return transactions.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取邮件交易记录失败，邮件ID: {EmailId}", emailId);
-            return BaseResponse<List<TransactionRecord>>.Fail($"获取邮件交易记录失败: {ex.Message}");
+            return $"获取邮件交易记录失败: {ex.Message}".Fail<List<TransactionRecord>>();
         }
     }
 
@@ -121,7 +113,7 @@ public class TransactionRecordController(
             // 解析日期字符串
             if (!DateTime.TryParse(dto.OccurredAt, out var occurredAt))
             {
-                return BaseResponse.Fail("交易时间格式不正确");
+                return "交易时间格式不正确".Fail();
             }
 
             var transaction = new TransactionRecord
@@ -140,20 +132,17 @@ public class TransactionRecordController(
             var result = await transactionRepository.AddAsync(transaction);
             if (result)
             {
-                return new BaseResponse
-                {
-                    Success = true
-                };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("创建交易记录失败");
+                return "创建交易记录失败".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "创建交易记录失败，交易信息: {@TransactionDto}", dto);
-            return BaseResponse.Fail($"创建交易记录失败: {ex.Message}");
+            return $"创建交易记录失败: {ex.Message}".Fail();
         }
     }
 
@@ -168,7 +157,7 @@ public class TransactionRecordController(
             var transaction = await transactionRepository.GetByIdAsync(dto.Id);
             if (transaction == null)
             {
-                return BaseResponse.Fail("交易记录不存在");
+                return "交易记录不存在".Fail();
             }
 
             // 更新可编辑字段
@@ -181,20 +170,17 @@ public class TransactionRecordController(
             var success = await transactionRepository.UpdateAsync(transaction);
             if (success)
             {
-                return new BaseResponse
-                {
-                    Success = true
-                };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("更新交易记录失败");
+                return "更新交易记录失败".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "更新交易记录失败，交易ID: {TransactionId}, 交易信息: {@TransactionDto}", dto.Id, dto);
-            return BaseResponse.Fail($"更新交易记录失败: {ex.Message}");
+            return $"更新交易记录失败: {ex.Message}".Fail();
         }
     }
 
@@ -209,20 +195,17 @@ public class TransactionRecordController(
             var success = await transactionRepository.DeleteAsync(id);
             if (success)
             {
-                return new BaseResponse
-                {
-                    Success = true
-                };
+                return BaseResponse.Done();
             }
             else
             {
-                return BaseResponse.Fail("删除交易记录失败，记录不存在");
+                return "删除交易记录失败，记录不存在".Fail();
             }
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "删除交易记录失败，交易ID: {TransactionId}", id);
-            return BaseResponse.Fail($"删除交易记录失败: {ex.Message}");
+            return $"删除交易记录失败: {ex.Message}".Fail();
         }
     }
 
@@ -240,16 +223,12 @@ public class TransactionRecordController(
             var statistics = await transactionRepository.GetDailyStatisticsAsync(year, month);
             var result = statistics.Select(s => new DailyStatisticsDto(s.Key, s.Value.count, s.Value.amount)).ToList();
 
-            return new BaseResponse<List<DailyStatisticsDto>>
-            {
-                Success = true,
-                Data = result
-            };
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取日历统计数据失败，年份: {Year}, 月份: {Month}", year, month);
-            return BaseResponse<List<DailyStatisticsDto>>.Fail($"获取日历统计数据失败: {ex.Message}");
+            return $"获取日历统计数据失败: {ex.Message}".Fail<List<DailyStatisticsDto>>();
         }
     }
 
@@ -265,16 +244,12 @@ public class TransactionRecordController(
         try
         {
             var statistics = await transactionRepository.GetMonthlyStatisticsAsync(year, month);
-            return new BaseResponse<MonthlyStatistics>
-            {
-                Success = true,
-                Data = statistics
-            };
+            return statistics.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取月度统计数据失败，年份: {Year}, 月份: {Month}", year, month);
-            return BaseResponse<MonthlyStatistics>.Fail($"获取月度统计数据失败: {ex.Message}");
+            return $"获取月度统计数据失败: {ex.Message}".Fail<MonthlyStatistics>();
         }
     }
 
@@ -291,16 +266,12 @@ public class TransactionRecordController(
         try
         {
             var statistics = await transactionRepository.GetCategoryStatisticsAsync(year, month, type);
-            return new BaseResponse<List<CategoryStatistics>>
-            {
-                Success = true,
-                Data = statistics
-            };
+            return statistics.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取分类统计数据失败，年份: {Year}, 月份: {Month}, 类型: {Type}", year, month, type);
-            return BaseResponse<List<CategoryStatistics>>.Fail($"获取分类统计数据失败: {ex.Message}");
+            return $"获取分类统计数据失败: {ex.Message}".Fail<List<CategoryStatistics>>();
         }
     }
 
@@ -317,16 +288,12 @@ public class TransactionRecordController(
         try
         {
             var statistics = await transactionRepository.GetTrendStatisticsAsync(startYear, startMonth, monthCount);
-            return new BaseResponse<List<TrendStatistics>>
-            {
-                Success = true,
-                Data = statistics
-            };
+            return statistics.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取趋势统计数据失败，开始年份: {Year}, 开始月份: {Month}, 月份数: {Count}", startYear, startMonth, monthCount);
-            return BaseResponse<List<TrendStatistics>>.Fail($"获取趋势统计数据失败: {ex.Message}");
+            return $"获取趋势统计数据失败: {ex.Message}".Fail<List<TrendStatistics>>();
         }
     }
 
@@ -361,7 +328,7 @@ public class TransactionRecordController(
         {
             if (!DateTime.TryParse(date, out var targetDate))
             {
-                return BaseResponse<List<TransactionRecord>>.Fail("日期格式不正确");
+                return "日期格式不正确".Fail<List<TransactionRecord>>();
             }
 
             // 获取当天的开始和结束时间
@@ -370,16 +337,12 @@ public class TransactionRecordController(
 
             var records = await transactionRepository.GetByDateRangeAsync(startDate, endDate);
 
-            return new BaseResponse<List<TransactionRecord>>
-            {
-                Success = true,
-                Data = records
-            };
+            return records.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取指定日期的交易记录失败，日期: {Date}", date);
-            return BaseResponse<List<TransactionRecord>>.Fail($"获取指定日期的交易记录失败: {ex.Message}");
+            return $"获取指定日期的交易记录失败: {ex.Message}".Fail<List<TransactionRecord>>();
         }
     }
 
@@ -392,16 +355,12 @@ public class TransactionRecordController(
         try
         {
             var count = await transactionRepository.GetUnclassifiedCountAsync();
-            return new BaseResponse<int>
-            {
-                Success = true,
-                Data = count
-            };
+            return count.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取未分类账单数量失败");
-            return BaseResponse<int>.Fail($"获取未分类账单数量失败: {ex.Message}");
+            return $"获取未分类账单数量失败: {ex.Message}".Fail<int>();
         }
     }
 
@@ -414,16 +373,12 @@ public class TransactionRecordController(
         try
         {
             var records = await transactionRepository.GetUnclassifiedAsync(pageSize);
-            return new BaseResponse<List<TransactionRecord>>
-            {
-                Success = true,
-                Data = records
-            };
+            return records.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取未分类账单列表失败");
-            return BaseResponse<List<TransactionRecord>>.Fail($"获取未分类账单列表失败: {ex.Message}");
+            return $"获取未分类账单列表失败: {ex.Message}".Fail<List<TransactionRecord>>();
         }
     }
 
@@ -487,16 +442,12 @@ public class TransactionRecordController(
                 }
             }
 
-            return new BaseResponse
-            {
-                Success = true,
-                Message = $"批量更新完成，成功 {successCount} 条，失败 {failCount} 条"
-            };
+            return $"批量更新完成，成功 {successCount} 条，失败 {failCount} 条".Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "批量更新分类失败");
-            return BaseResponse.Fail($"批量更新分类失败: {ex.Message}");
+            return $"批量更新分类失败: {ex.Message}".Fail();
         }
     }
 
@@ -534,17 +485,12 @@ public class TransactionRecordController(
         try
         {
             var count = await transactionRepository.BatchUpdateByReasonAsync(dto.Reason, dto.Type, dto.Classify);
-            return new BaseResponse<int>
-            {
-                Success = true,
-                Data = count,
-                Message = $"成功更新 {count} 条记录"
-            };
+            return count.Ok($"成功更新 {count} 条记录");
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "按摘要批量更新分类失败，摘要: {Reason}", dto.Reason);
-            return BaseResponse<int>.Fail($"按摘要批量更新分类失败: {ex.Message}");
+            return $"按摘要批量更新分类失败: {ex.Message}".Fail<int>();
         }
     }
 
@@ -556,7 +502,7 @@ public class TransactionRecordController(
     {
         if (string.IsNullOrEmpty(request.Text))
         {
-            return BaseResponse<TransactionParseResult>.Fail("请求参数缺失：text");
+            return "请求参数缺失：text".Fail<TransactionParseResult>();
         }
 
         try
@@ -565,15 +511,15 @@ public class TransactionRecordController(
 
             if (result == null)
             {
-                return BaseResponse<TransactionParseResult>.Fail("AI解析失败");
+                return "AI解析失败".Fail<TransactionParseResult>();
             }
 
-            return BaseResponse<TransactionParseResult>.Done(result);
+            return result.Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "一句话录账解析失败，文本: {Text}", request.Text);
-            return BaseResponse<TransactionParseResult>.Fail("AI解析失败: " + ex.Message);
+            return ("AI解析失败: " + ex.Message).Fail<TransactionParseResult>();
         }
     }
 
@@ -588,17 +534,17 @@ public class TransactionRecordController(
             var current = await transactionRepository.GetByIdAsync(id);
             if (current == null)
             {
-                return BaseResponse<TransactionRecord[]>.Done([]);
+                return ((TransactionRecord[])[]).Ok();
             }
 
             var list = await transactionRepository.GetCandidatesForOffsetAsync(id, current.Amount, current.Type);
 
-            return BaseResponse<TransactionRecord[]>.Done(list.ToArray());
+            return list.ToArray().Ok();
         }
         catch (Exception ex)
         {
             logger.LogError(ex, "获取抵账候选列表失败，交易ID: {TransactionId}", id);
-            return BaseResponse<TransactionRecord[]>.Fail($"获取抵账候选列表失败: {ex.Message}");
+            return $"获取抵账候选列表失败: {ex.Message}".Fail<TransactionRecord[]>();
         }
     }