diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs
index ed3c66c..2d1923a 100644
--- a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs
@@ -30,7 +30,7 @@ public sealed class CreatePaymentCommand : IRequest<PaymentDto>
     public decimal Amount { get; set; }
 
     /// <summary>
-    /// 平台交易号。
+    /// 系统交易号。
     /// </summary>
     public string? TradeNo { get; set; }
 
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs
index 6b8e9ed..1889a10 100644
--- a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs
@@ -35,7 +35,7 @@ public sealed record UpdatePaymentCommand : IRequest<PaymentDto?>
     public decimal Amount { get; init; }
 
     /// <summary>
-    /// 平台交易号。
+    /// 系统交易号。
     /// </summary>
     public string? TradeNo { get; init; }
 
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs
index d127427..3852df0 100644
--- a/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs
@@ -43,7 +43,7 @@ public sealed class PaymentDto
     public decimal Amount { get; init; }
 
     /// <summary>
-    /// 平台交易号。
+    /// 系统交易号。
     /// </summary>
     public string? TradeNo { get; init; }
 
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/ToggleBusinessStatusCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/ToggleBusinessStatusCommandHandler.cs
index 24f8072..7bf5f61 100644
--- a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/ToggleBusinessStatusCommandHandler.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/ToggleBusinessStatusCommandHandler.cs
@@ -37,7 +37,7 @@ public sealed class ToggleBusinessStatusCommandHandler(
 
         if (store.BusinessStatus == StoreBusinessStatus.ForceClosed)
         {
-            throw new BusinessException(ErrorCodes.Conflict, "门店已被平台强制关闭，无法切换");
+            throw new BusinessException(ErrorCodes.Conflict, "门店已被风控强制关闭，无法切换");
         }
 
         // 2. (空行后) 应用状态变更
diff --git a/src/Application/TakeoutSaaS.Application/App/Tenants/Dto/TenantPackageDto.cs b/src/Application/TakeoutSaaS.Application/App/Tenants/Dto/TenantPackageDto.cs
index e901d5e..a3752c7 100644
--- a/src/Application/TakeoutSaaS.Application/App/Tenants/Dto/TenantPackageDto.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Tenants/Dto/TenantPackageDto.cs
@@ -71,7 +71,7 @@ public sealed class TenantPackageDto
     public string? FeaturePoliciesJson { get; init; }
 
     /// <summary>
-    /// 是否仍启用（平台控制）。
+    /// 是否仍启用（系统控制）。
     /// </summary>
     public bool IsActive { get; init; }
 
diff --git a/src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/CreateTenantAnnouncementCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/CreateTenantAnnouncementCommandHandler.cs
index 79dbb72..e45843c 100644
--- a/src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/CreateTenantAnnouncementCommandHandler.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/CreateTenantAnnouncementCommandHandler.cs
@@ -29,7 +29,7 @@ public sealed class CreateTenantAnnouncementCommandHandler(
     /// <returns>公告 DTO。</returns>
     public async Task<TenantAnnouncementDto> Handle(CreateTenantAnnouncementCommand request, CancellationToken cancellationToken)
     {
-        // 1. 校验租户上下文（租户端禁止跨租户/平台公告）
+        // 1. 校验租户上下文（租户端禁止跨租户/系统公告）
         var currentTenantId = tenantProvider.GetCurrentTenantId();
         if (currentTenantId <= 0)
         {
@@ -51,7 +51,7 @@ public sealed class CreateTenantAnnouncementCommandHandler(
         // 4. (空行后) 校验公告发布范围：租户端仅允许租户公告
         if (request.PublisherScope != PublisherScope.Tenant)
         {
-            throw new BusinessException(ErrorCodes.ValidationFailed, "租户端不允许创建平台公告");
+            throw new BusinessException(ErrorCodes.ValidationFailed, "租户端仅允许创建租户公告");
         }
 
         if (string.IsNullOrWhiteSpace(request.TargetType))
diff --git a/src/Application/TakeoutSaaS.Application/App/Tenants/Validators/CreateAnnouncementCommandValidator.cs b/src/Application/TakeoutSaaS.Application/App/Tenants/Validators/CreateAnnouncementCommandValidator.cs
index 0a3cb01..a1d1173 100644
--- a/src/Application/TakeoutSaaS.Application/App/Tenants/Validators/CreateAnnouncementCommandValidator.cs
+++ b/src/Application/TakeoutSaaS.Application/App/Tenants/Validators/CreateAnnouncementCommandValidator.cs
@@ -35,7 +35,7 @@ public sealed class CreateAnnouncementCommandValidator : AbstractValidator<Creat
 
         RuleFor(x => x.PublisherScope)
             .Equal(PublisherScope.Tenant)
-            .WithMessage("租户端不允许创建平台公告");
+            .WithMessage("租户端仅允许创建租户公告");
 
         RuleFor(x => x.EffectiveFrom)
             .LessThan(x => x.EffectiveTo!.Value)
diff --git a/src/Application/TakeoutSaaS.Application/Identity/Contracts/CurrentUserProfile.cs b/src/Application/TakeoutSaaS.Application/Identity/Contracts/CurrentUserProfile.cs
index 922b7d3..995efe2 100644
--- a/src/Application/TakeoutSaaS.Application/Identity/Contracts/CurrentUserProfile.cs
+++ b/src/Application/TakeoutSaaS.Application/Identity/Contracts/CurrentUserProfile.cs
@@ -26,7 +26,7 @@ public sealed class CurrentUserProfile
     public long TenantId { get; init; }
 
     /// <summary>
-    /// 所属商户 ID（平台管理员为空）。
+    /// 所属商户 ID（租户管理员为空）。
     /// </summary>
     public long? MerchantId { get; init; }
 
diff --git a/src/Application/TakeoutSaaS.Application/Identity/Services/AdminAuthService.cs b/src/Application/TakeoutSaaS.Application/Identity/Services/AdminAuthService.cs
index 7863b3d..890598e 100644
--- a/src/Application/TakeoutSaaS.Application/Identity/Services/AdminAuthService.cs
+++ b/src/Application/TakeoutSaaS.Application/Identity/Services/AdminAuthService.cs
@@ -288,7 +288,7 @@ public sealed class AdminAuthService(
     {
         var tenantId = user.TenantId;
         var roles = await ResolveUserRolesAsync(tenantId, user.Id, cancellationToken);
-        // 1. 强制仅允许租户管理员登录（平台不允许超级管理员）
+        // 1. 强制仅允许租户管理员登录（不支持超级管理员）
         EnsureTenantAdmin(tenantId, roles);
         // 2. 加载权限并返回档案
         var permissions = await ResolveUserPermissionsAsync(tenantId, user.Id, cancellationToken);
diff --git a/src/Domain/TakeoutSaaS.Domain/CustomerService/Entities/ChatSession.cs b/src/Domain/TakeoutSaaS.Domain/CustomerService/Entities/ChatSession.cs
index d9ea66d..78e471c 100644
--- a/src/Domain/TakeoutSaaS.Domain/CustomerService/Entities/ChatSession.cs
+++ b/src/Domain/TakeoutSaaS.Domain/CustomerService/Entities/ChatSession.cs
@@ -24,7 +24,7 @@ public sealed class ChatSession : MultiTenantEntityBase
     public long? AgentUserId { get; set; }
 
     /// <summary>
-    /// 所属门店（可空为平台）。
+    /// 所属门店（可空为系统会话）。
     /// </summary>
     public long? StoreId { get; set; }
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Distribution/Entities/AffiliatePartner.cs b/src/Domain/TakeoutSaaS.Domain/Distribution/Entities/AffiliatePartner.cs
index 551e39d..e5e22dd 100644
--- a/src/Domain/TakeoutSaaS.Domain/Distribution/Entities/AffiliatePartner.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Distribution/Entities/AffiliatePartner.cs
@@ -9,7 +9,7 @@ namespace TakeoutSaaS.Domain.Distribution.Entities;
 public sealed class AffiliatePartner : MultiTenantEntityBase
 {
     /// <summary>
-    /// 用户 ID（如绑定平台账号）。
+    /// 用户 ID（如绑定登录账号）。
     /// </summary>
     public long? UserId { get; set; }
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/IdentityUser.cs b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/IdentityUser.cs
index 70a46ed..96254e8 100644
--- a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/IdentityUser.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/IdentityUser.cs
@@ -4,7 +4,7 @@ using TakeoutSaaS.Shared.Abstractions.Entities;
 namespace TakeoutSaaS.Domain.Identity.Entities;
 
 /// <summary>
-/// 管理后台账户实体（平台管理员、租户管理员或商户员工）。
+/// 管理后台账户实体（租户管理员或商户员工）。
 /// </summary>
 public sealed class IdentityUser : MultiTenantEntityBase
 {
@@ -59,7 +59,7 @@ public sealed class IdentityUser : MultiTenantEntityBase
     public bool MustChangePassword { get; set; }
 
     /// <summary>
-    /// 所属商户（平台管理员为空）。
+    /// 所属商户（租户管理员为空）。
     /// </summary>
     public long? MerchantId { get; set; }
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplate.cs b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplate.cs
index 2570321..6faeae5 100644
--- a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplate.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplate.cs
@@ -3,7 +3,7 @@ using TakeoutSaaS.Shared.Abstractions.Entities;
 namespace TakeoutSaaS.Domain.Identity.Entities;
 
 /// <summary>
-/// 角色模板定义（平台级）。
+/// 角色模板定义（系统级）。
 /// </summary>
 public sealed class RoleTemplate : AuditableEntityBase
 {
diff --git a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplatePermission.cs b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplatePermission.cs
index f3f9896..a416c42 100644
--- a/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplatePermission.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Identity/Entities/RoleTemplatePermission.cs
@@ -3,7 +3,7 @@ using TakeoutSaaS.Shared.Abstractions.Entities;
 namespace TakeoutSaaS.Domain.Identity.Entities;
 
 /// <summary>
-/// 角色模板-权限关系（平台级）。
+/// 角色模板-权限关系（系统级）。
 /// </summary>
 public sealed class RoleTemplatePermission : AuditableEntityBase
 {
diff --git a/src/Domain/TakeoutSaaS.Domain/Merchants/Enums/MerchantAuditAction.cs b/src/Domain/TakeoutSaaS.Domain/Merchants/Enums/MerchantAuditAction.cs
index 865b1ec..9d2c17d 100644
--- a/src/Domain/TakeoutSaaS.Domain/Merchants/Enums/MerchantAuditAction.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Merchants/Enums/MerchantAuditAction.cs
@@ -35,16 +35,6 @@ public enum MerchantAuditAction
     /// </summary>
     MerchantReviewed = 5,
 
-    /// <summary>
-    /// 领取审核。
-    /// </summary>
-    ReviewClaimed = 6,
-
-    /// <summary>
-    /// 释放审核。
-    /// </summary>
-    ReviewReleased = 7,
-
     /// <summary>
     /// 审核通过。
     /// </summary>
@@ -63,10 +53,5 @@ public enum MerchantAuditAction
     /// <summary>
     /// 关键信息变更进入待审核。
     /// </summary>
-    ReviewPendingReApproval = 11,
-
-    /// <summary>
-    /// 强制接管审核。
-    /// </summary>
-    ReviewForceClaimed = 12
+    ReviewPendingReApproval = 11
 }
diff --git a/src/Domain/TakeoutSaaS.Domain/Payments/Entities/PaymentRecord.cs b/src/Domain/TakeoutSaaS.Domain/Payments/Entities/PaymentRecord.cs
index 7ba0380..86e726d 100644
--- a/src/Domain/TakeoutSaaS.Domain/Payments/Entities/PaymentRecord.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Payments/Entities/PaymentRecord.cs
@@ -29,7 +29,7 @@ public sealed class PaymentRecord : MultiTenantEntityBase
     public decimal Amount { get; set; }
 
     /// <summary>
-    /// 平台交易号。
+    /// 系统交易号。
     /// </summary>
     public string? TradeNo { get; set; }
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreBusinessStatus.cs b/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreBusinessStatus.cs
index c1d49c9..099690e 100644
--- a/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreBusinessStatus.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreBusinessStatus.cs
@@ -16,7 +16,7 @@ public enum StoreBusinessStatus
     Resting = 1,
 
     /// <summary>
-    /// 强制关闭（平台风控）。
+    /// 强制关闭（风控）。
     /// </summary>
     ForceClosed = 2
 }
diff --git a/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreClosureReason.cs b/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreClosureReason.cs
index d0ac4a7..b751ab4 100644
--- a/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreClosureReason.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Stores/Enums/StoreClosureReason.cs
@@ -36,9 +36,9 @@ public enum StoreClosureReason
     LicenseExpired = 5,
 
     /// <summary>
-    /// 平台封禁。
+    /// 风控封禁。
     /// </summary>
-    PlatformSuspended = 6,
+    RiskSuspended = 6,
 
     /// <summary>
     /// 其他原因。
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/QuotaPackage.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/QuotaPackage.cs
index c480561..48087e9 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/QuotaPackage.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/QuotaPackage.cs
@@ -4,7 +4,7 @@ using TakeoutSaaS.Shared.Abstractions.Entities;
 namespace TakeoutSaaS.Domain.Tenants.Entities;
 
 /// <summary>
-/// 配额包定义（平台提供的可购买配额包）。
+/// 配额包定义（系统提供的可购买配额包）。
 /// </summary>
 public sealed class QuotaPackage : AuditableEntityBase
 {
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantAnnouncement.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantAnnouncement.cs
index f3c73ab..b7e1908 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantAnnouncement.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantAnnouncement.cs
@@ -44,7 +44,7 @@ public sealed class TenantAnnouncement : MultiTenantEntityBase
     public PublisherScope PublisherScope { get; set; }
 
     /// <summary>
-    /// 发布者用户 ID（平台或租户后台账号）。
+    /// 发布者用户 ID（系统或租户后台账号）。
     /// </summary>
     public long? PublisherUserId { get; set; }
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantPackage.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantPackage.cs
index 3a89b15..d3dba58 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantPackage.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantPackage.cs
@@ -4,7 +4,7 @@ using TakeoutSaaS.Shared.Abstractions.Entities;
 namespace TakeoutSaaS.Domain.Tenants.Entities;
 
 /// <summary>
-/// 平台提供的租户套餐定义。
+/// 系统提供的租户套餐定义。
 /// </summary>
 public sealed class TenantPackage : AuditableEntityBase
 {
@@ -64,7 +64,7 @@ public sealed class TenantPackage : AuditableEntityBase
     public string? FeaturePoliciesJson { get; set; }
 
     /// <summary>
-    /// 是否仍启用（平台控制）。
+    /// 是否仍启用（系统控制）。
     /// </summary>
     public bool IsActive { get; set; } = true;
 
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/PublisherScope.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/PublisherScope.cs
index b87ffd6..7ddefb5 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/PublisherScope.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/PublisherScope.cs
@@ -6,9 +6,9 @@ namespace TakeoutSaaS.Domain.Tenants.Enums;
 public enum PublisherScope
 {
     /// <summary>
-    /// 平台发布。
+    /// 系统发布。
     /// </summary>
-    Platform = 0,
+    System = 0,
 
     /// <summary>
     /// 租户发布。
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAnnouncementType.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAnnouncementType.cs
index 0672fee..749e493 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAnnouncementType.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAnnouncementType.cs
@@ -21,9 +21,9 @@ public enum TenantAnnouncementType
     Operation = 2,
 
     /// <summary>
-    /// 平台系统更新公告。
+    /// 系统更新公告。
     /// </summary>
-    SYSTEM_PLATFORM_UPDATE = 3,
+    SYSTEM_PRODUCT_UPDATE = 3,
 
     /// <summary>
     /// 系统安全公告。
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAuditAction.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAuditAction.cs
index 6395a2a..e86677f 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAuditAction.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantAuditAction.cs
@@ -39,29 +39,4 @@ public enum TenantAuditAction
     /// 租户状态变更（启用/停用/到期等）。
     /// </summary>
     StatusChanged = 7,
-
-    /// <summary>
-    /// 领取入驻审核。
-    /// </summary>
-    ReviewClaimed = 8,
-
-    /// <summary>
-    /// 强制接管入驻审核。
-    /// </summary>
-    ReviewForceClaimed = 9,
-
-    /// <summary>
-    /// 释放入驻审核（审核完成或手动释放）。
-    /// </summary>
-    ReviewClaimReleased = 10,
-
-    /// <summary>
-    /// 平台伪装登录租户。
-    /// </summary>
-    ImpersonatedLogin = 11,
-
-    /// <summary>
-    /// 生成主管理员重置链接。
-    /// </summary>
-    AdminResetLinkIssued = 12
 }
diff --git a/src/Domain/TakeoutSaaS.Domain/Tenants/Repositories/ISubscriptionRepository.cs b/src/Domain/TakeoutSaaS.Domain/Tenants/Repositories/ISubscriptionRepository.cs
index 95d267e..596d003 100644
--- a/src/Domain/TakeoutSaaS.Domain/Tenants/Repositories/ISubscriptionRepository.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Tenants/Repositories/ISubscriptionRepository.cs
@@ -15,7 +15,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="subscriptionId">订阅 ID。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>订阅实体，未找到返回 null。</returns>
     Task<TenantSubscription?> FindByIdAsync(
         long subscriptionId,
@@ -27,7 +27,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="subscriptionIds">订阅 ID 列表。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>订阅实体列表。</returns>
     Task<IReadOnlyList<TenantSubscription>> FindByIdsAsync(
         IEnumerable<long> subscriptionIds,
@@ -39,7 +39,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="filter">查询过滤条件。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>分页结果。</returns>
     Task<(IReadOnlyList<SubscriptionWithRelations> Items, int Total)> SearchPagedAsync(
         SubscriptionSearchFilter filter,
@@ -51,7 +51,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="subscriptionId">订阅 ID。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>订阅详情信息。</returns>
     Task<SubscriptionDetailInfo?> GetDetailAsync(
         long subscriptionId,
@@ -63,7 +63,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="subscriptionIds">订阅 ID 列表。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>订阅与租户信息列表。</returns>
     Task<IReadOnlyList<SubscriptionWithTenant>> FindByIdsWithTenantAsync(
         IEnumerable<long> subscriptionIds,
@@ -76,7 +76,7 @@ public interface ISubscriptionRepository
     /// <param name="now">当前时间（UTC）。</param>
     /// <param name="renewalThreshold">续费阈值时间（UTC），到期时间小于等于该时间视为候选。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>候选订阅集合（含套餐信息）。</returns>
     Task<IReadOnlyList<AutoRenewalCandidate>> FindAutoRenewalCandidatesAsync(
         DateTime now,
@@ -90,7 +90,7 @@ public interface ISubscriptionRepository
     /// <param name="startOfDay">筛选开始时间（UTC，含）。</param>
     /// <param name="endOfDay">筛选结束时间（UTC，不含）。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>候选订阅集合（含租户与套餐信息）。</returns>
     Task<IReadOnlyList<RenewalReminderCandidate>> FindRenewalReminderCandidatesAsync(
         DateTime startOfDay,
@@ -103,7 +103,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="now">当前时间（UTC）。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>到期订阅集合。</returns>
     Task<IReadOnlyList<TenantSubscription>> FindExpiredActiveSubscriptionsAsync(
         DateTime now,
@@ -116,7 +116,7 @@ public interface ISubscriptionRepository
     /// <param name="now">当前时间（UTC）。</param>
     /// <param name="gracePeriodDays">宽限期天数。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>宽限期到期订阅集合。</returns>
     Task<IReadOnlyList<TenantSubscription>> FindGracePeriodExpiredSubscriptionsAsync(
         DateTime now,
@@ -177,7 +177,7 @@ public interface ISubscriptionRepository
     /// </summary>
     /// <param name="tenantId">租户 ID。</param>
     /// <param name="cancellationToken">取消标记。</param>
-    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于平台级查询/任务）。</param>
+    /// <param name="ignoreTenantFilter">是否忽略租户过滤（用于系统级任务）。</param>
     /// <returns>配额使用列表。</returns>
     Task<IReadOnlyList<TenantQuotaUsage>> GetQuotaUsagesAsync(
         long tenantId,
diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/Dictionary/Persistence/Seeds/InitialDictionaries.sql b/src/Infrastructure/TakeoutSaaS.Infrastructure/Dictionary/Persistence/Seeds/InitialDictionaries.sql
index a8f6d33..b98fb3c 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/Dictionary/Persistence/Seeds/InitialDictionaries.sql
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/Dictionary/Persistence/Seeds/InitialDictionaries.sql
@@ -46,7 +46,7 @@ ON CONFLICT ("TenantId", "Code") DO NOTHING;
 
 INSERT INTO dictionary_items ("Id", "TenantId", "GroupId", "Key", "Value", "IsDefault", "IsEnabled", "SortOrder", "Description", "CreatedAt", "CreatedBy")
 VALUES
-  (10031, 0, 1003, 'PLATFORM_DELIVERY', '{"zh-CN":"平台配送","en":"Platform Delivery"}', true, true, 10, '平台自有骑手配送', CURRENT_TIMESTAMP, 0),
+  (10031, 0, 1003, 'SYSTEM_DELIVERY', '{"zh-CN":"系统配送","en":"System Delivery"}', true, true, 10, '系统自有骑手配送', CURRENT_TIMESTAMP, 0),
   (10032, 0, 1003, 'MERCHANT_DELIVERY', '{"zh-CN":"商家配送","en":"Merchant Delivery"}', false, true, 20, '商家自行配送', CURRENT_TIMESTAMP, 0),
   (10033, 0, 1003, 'SELF_PICKUP', '{"zh-CN":"到店自取","en":"Self Pickup"}', false, true, 30, '顾客到店自取', CURRENT_TIMESTAMP, 0)
 ON CONFLICT ("TenantId", "GroupId", "Key") DO NOTHING;
diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Options/AdminSeedOptions.cs b/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Options/AdminSeedOptions.cs
index 03f6333..eab01eb 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Options/AdminSeedOptions.cs
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Options/AdminSeedOptions.cs
@@ -52,7 +52,7 @@ public sealed class SeedUserOptions
     public long TenantId { get; set; }
 
     /// <summary>
-    /// 所属商户 ID（平台管理员为空）。
+    /// 所属商户 ID（租户管理员为空）。
     /// </summary>
     public long? MerchantId { get; set; }
 
diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Persistence/IdentityDbContext.cs b/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Persistence/IdentityDbContext.cs
index 9d0467b..3800b5b 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Persistence/IdentityDbContext.cs
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/Identity/Persistence/IdentityDbContext.cs
@@ -35,7 +35,7 @@ public sealed class IdentityDbContext(
     public DbSet<Role> Roles => Set<Role>();
 
     /// <summary>
-    /// 角色模板集合（平台级）。
+    /// 角色模板集合（系统级）。
     /// </summary>
     public DbSet<RoleTemplate> RoleTemplates => Set<RoleTemplate>();
 
diff --git a/src/Modules/TakeoutSaaS.Module.Sms/Models/SmsSendResult.cs b/src/Modules/TakeoutSaaS.Module.Sms/Models/SmsSendResult.cs
index afc81fb..dfdd69f 100644
--- a/src/Modules/TakeoutSaaS.Module.Sms/Models/SmsSendResult.cs
+++ b/src/Modules/TakeoutSaaS.Module.Sms/Models/SmsSendResult.cs
@@ -11,7 +11,7 @@ public sealed class SmsSendResult
     public bool Success { get; init; }
 
     /// <summary>
-    /// 平台返回的请求标识。
+    /// 服务商返回的请求标识。
     /// </summary>
     public string? RequestId { get; init; }
 
diff --git a/tests/TakeoutSaaS.Application.Tests/App/Tenants/Validators/CreateAnnouncementCommandValidatorTests.cs b/tests/TakeoutSaaS.Application.Tests/App/Tenants/Validators/CreateAnnouncementCommandValidatorTests.cs
index 8bbae52..af52c42 100644
--- a/tests/TakeoutSaaS.Application.Tests/App/Tenants/Validators/CreateAnnouncementCommandValidatorTests.cs
+++ b/tests/TakeoutSaaS.Application.Tests/App/Tenants/Validators/CreateAnnouncementCommandValidatorTests.cs
@@ -84,7 +84,7 @@ public sealed class CreateAnnouncementCommandValidatorTests
         // Arrange
         var command = AnnouncementTestData.CreateValidCreateCommand() with
         {
-            PublisherScope = PublisherScope.Platform
+            PublisherScope = PublisherScope.System
         };
 
         // Act