diff --git a/src/Application/TakeoutSaaS.Application/App/Billings/Mappings/BillingProfile.cs b/src/Application/TakeoutSaaS.Application/App/Billings/Mappings/BillingProfile.cs
deleted file mode 100644
index 3b3a25b..0000000
--- a/src/Application/TakeoutSaaS.Application/App/Billings/Mappings/BillingProfile.cs
+++ /dev/null
@@ -1,66 +0,0 @@
-using AutoMapper;
-using System.Text.Json;
-using TakeoutSaaS.Application.App.Billings.Dto;
-using TakeoutSaaS.Domain.Tenants.Entities;
-using TakeoutSaaS.Domain.Tenants.Enums;
-
-namespace TakeoutSaaS.Application.App.Billings.Mappings;
-
-/// <summary>
-/// 账单模块 AutoMapper Profile。
-/// </summary>
-public sealed class BillingProfile : Profile
-{
-    /// <summary>
-    /// 初始化映射配置。
-    /// </summary>
-    public BillingProfile()
-    {
-        // 1. 账单实体 -> 列表 DTO
-        CreateMap<TenantBillingStatement, BillingListDto>()
-            .ForMember(x => x.TenantName, opt => opt.Ignore())
-            .ForMember(x => x.TotalAmount, opt => opt.MapFrom(src => src.CalculateTotalAmount()))
-            .ForMember(x => x.IsOverdue, opt => opt.MapFrom(src =>
-                src.Status == TenantBillingStatus.Overdue
-                || (src.Status == TenantBillingStatus.Pending && src.DueDate < DateTime.UtcNow)))
-            .ForMember(x => x.OverdueDays, opt => opt.MapFrom(src =>
-                src.DueDate < DateTime.UtcNow ? (int)(DateTime.UtcNow - src.DueDate).TotalDays : 0));
-
-        // 2. (空行后) 账单实体 -> 详情 DTO
-        CreateMap<TenantBillingStatement, BillingDetailDto>()
-            .ForMember(x => x.TenantName, opt => opt.Ignore())
-            .ForMember(x => x.TotalAmount, opt => opt.MapFrom(src => src.CalculateTotalAmount()))
-            .ForMember(x => x.LineItemsJson, opt => opt.MapFrom(src => src.LineItemsJson))
-            .ForMember(x => x.LineItems, opt => opt.MapFrom(src => DeserializeLineItems(src.LineItemsJson)))
-            .ForMember(x => x.Payments, opt => opt.Ignore());
-
-        // 3. (空行后) 账单实体 -> 导出 DTO
-        CreateMap<TenantBillingStatement, BillingExportDto>()
-            .ForMember(x => x.TenantName, opt => opt.Ignore())
-            .ForMember(x => x.TotalAmount, opt => opt.MapFrom(src => src.CalculateTotalAmount()))
-            .ForMember(x => x.LineItems, opt => opt.MapFrom(src => DeserializeLineItems(src.LineItemsJson)));
-
-        // 4. (空行后) 支付实体 -> 支付记录 DTO
-        CreateMap<TenantPayment, PaymentRecordDto>()
-            .ForMember(x => x.BillingId, opt => opt.MapFrom(src => src.BillingStatementId))
-            .ForMember(x => x.IsVerified, opt => opt.MapFrom(src => src.VerifiedAt.HasValue));
-    }
-
-    private static IReadOnlyList<BillingLineItemDto> DeserializeLineItems(string? json)
-    {
-        if (string.IsNullOrWhiteSpace(json))
-        {
-            return [];
-        }
-
-        try
-        {
-            return JsonSerializer.Deserialize<List<BillingLineItemDto>>(json) ?? [];
-        }
-        catch
-        {
-            return [];
-        }
-    }
-}
-
diff --git a/src/Application/TakeoutSaaS.Application/App/Extensions/AppApplicationServiceCollectionExtensions.cs b/src/Application/TakeoutSaaS.Application/App/Extensions/AppApplicationServiceCollectionExtensions.cs
index 1fd8435..8f2944e 100644
--- a/src/Application/TakeoutSaaS.Application/App/Extensions/AppApplicationServiceCollectionExtensions.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Extensions/AppApplicationServiceCollectionExtensions.cs
@@ -20,9 +20,6 @@ public static class AppApplicationServiceCollectionExtensions
     {
         services.AddMediatR(cfg => cfg.RegisterServicesFromAssembly(Assembly.GetExecutingAssembly()));
         services.AddValidatorsFromAssembly(Assembly.GetExecutingAssembly());
-
-        // (空行后) 注册 AutoMapper Profile
-        services.AddAutoMapper(Assembly.GetExecutingAssembly());
         services.AddTransient(typeof(IPipelineBehavior<,>), typeof(ValidationBehavior<,>));
 
         return services;
diff --git a/src/Application/TakeoutSaaS.Application/TakeoutSaaS.Application.csproj b/src/Application/TakeoutSaaS.Application/TakeoutSaaS.Application.csproj
index 8d09840..f8b5ffd 100644
--- a/src/Application/TakeoutSaaS.Application/TakeoutSaaS.Application.csproj
+++ b/src/Application/TakeoutSaaS.Application/TakeoutSaaS.Application.csproj
@@ -9,8 +9,6 @@
     <PackageReference Include="Microsoft.Extensions.Identity.Core" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="10.0.0" />
     <PackageReference Include="MediatR" Version="14.0.0" />
-    <PackageReference Include="AutoMapper" Version="12.0.1" />
-    <PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="12.0.1" />
     <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.1.1" />
     <PackageReference Include="QRCoder" Version="1.7.0" />
   </ItemGroup>