diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/DeliveriesController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/DeliveriesController.cs
new file mode 100644
index 0000000..a36e2e2
--- /dev/null
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/DeliveriesController.cs
@@ -0,0 +1,108 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Deliveries.Commands;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Application.App.Deliveries.Queries;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.AdminApi.Controllers;
+
+/// <summary>
+/// 配送单管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/admin/v{version:apiVersion}/deliveries")]
+public sealed class DeliveriesController : BaseApiController
+{
+    private readonly IMediator _mediator;
+
+    /// <summary>
+    /// 初始化控制器。
+    /// </summary>
+    public DeliveriesController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    /// <summary>
+    /// 创建配送单。
+    /// </summary>
+    [HttpPost]
+    [PermissionAuthorize("delivery:create")]
+    [ProducesResponseType(typeof(ApiResponse<DeliveryOrderDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<DeliveryOrderDto>> Create([FromBody] CreateDeliveryOrderCommand command, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(command, cancellationToken);
+        return ApiResponse<DeliveryOrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 查询配送单列表。
+    /// </summary>
+    [HttpGet]
+    [PermissionAuthorize("delivery:read")]
+    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<DeliveryOrderDto>>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<IReadOnlyList<DeliveryOrderDto>>> List([FromQuery] long? orderId, [FromQuery] DeliveryStatus? status, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new SearchDeliveryOrdersQuery
+        {
+            OrderId = orderId,
+            Status = status
+        }, cancellationToken);
+
+        return ApiResponse<IReadOnlyList<DeliveryOrderDto>>.Ok(result);
+    }
+
+    /// <summary>
+    /// 获取配送单详情。
+    /// </summary>
+    [HttpGet("{deliveryOrderId:long}")]
+    [PermissionAuthorize("delivery:read")]
+    [ProducesResponseType(typeof(ApiResponse<DeliveryOrderDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<DeliveryOrderDto>> Detail(long deliveryOrderId, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new GetDeliveryOrderByIdQuery { DeliveryOrderId = deliveryOrderId }, cancellationToken);
+        return result == null
+            ? ApiResponse<DeliveryOrderDto>.Error(ErrorCodes.NotFound, "配送单不存在")
+            : ApiResponse<DeliveryOrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 更新配送单。
+    /// </summary>
+    [HttpPut("{deliveryOrderId:long}")]
+    [PermissionAuthorize("delivery:update")]
+    [ProducesResponseType(typeof(ApiResponse<DeliveryOrderDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<DeliveryOrderDto>> Update(long deliveryOrderId, [FromBody] UpdateDeliveryOrderCommand command, CancellationToken cancellationToken)
+    {
+        command.DeliveryOrderId = command.DeliveryOrderId == 0 ? deliveryOrderId : command.DeliveryOrderId;
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<DeliveryOrderDto>.Error(ErrorCodes.NotFound, "配送单不存在")
+            : ApiResponse<DeliveryOrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除配送单。
+    /// </summary>
+    [HttpDelete("{deliveryOrderId:long}")]
+    [PermissionAuthorize("delivery:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long deliveryOrderId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeleteDeliveryOrderCommand { DeliveryOrderId = deliveryOrderId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "配送单不存在");
+    }
+}
diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/MerchantsController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/MerchantsController.cs
index cc11ec1..c24ec8d 100644
--- a/src/Api/TakeoutSaaS.AdminApi/Controllers/MerchantsController.cs
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/MerchantsController.cs
@@ -55,6 +55,38 @@ public sealed class MerchantsController : BaseApiController
         return ApiResponse<IReadOnlyList<MerchantDto>>.Ok(result);
     }
 
+    /// <summary>
+    /// 更新商户。
+    /// </summary>
+    [HttpPut("{merchantId:long}")]
+    [PermissionAuthorize("merchant:update")]
+    [ProducesResponseType(typeof(ApiResponse<MerchantDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<MerchantDto>> Update(long merchantId, [FromBody] UpdateMerchantCommand command, CancellationToken cancellationToken)
+    {
+        command.MerchantId = command.MerchantId == 0 ? merchantId : command.MerchantId;
+
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<MerchantDto>.Error(ErrorCodes.NotFound, "商户不存在")
+            : ApiResponse<MerchantDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除商户。
+    /// </summary>
+    [HttpDelete("{merchantId:long}")]
+    [PermissionAuthorize("merchant:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long merchantId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeleteMerchantCommand { MerchantId = merchantId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "商户不存在");
+    }
+
     /// <summary>
     /// 获取商户详情。
     /// </summary>
diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/OrdersController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/OrdersController.cs
new file mode 100644
index 0000000..f66b159
--- /dev/null
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/OrdersController.cs
@@ -0,0 +1,116 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Orders.Commands;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Application.App.Orders.Queries;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Domain.Payments.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.AdminApi.Controllers;
+
+/// <summary>
+/// 订单管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/admin/v{version:apiVersion}/orders")]
+public sealed class OrdersController : BaseApiController
+{
+    private readonly IMediator _mediator;
+
+    /// <summary>
+    /// 初始化控制器。
+    /// </summary>
+    public OrdersController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    /// <summary>
+    /// 创建订单。
+    /// </summary>
+    [HttpPost]
+    [PermissionAuthorize("order:create")]
+    [ProducesResponseType(typeof(ApiResponse<OrderDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<OrderDto>> Create([FromBody] CreateOrderCommand command, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(command, cancellationToken);
+        return ApiResponse<OrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 查询订单列表。
+    /// </summary>
+    [HttpGet]
+    [PermissionAuthorize("order:read")]
+    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<OrderDto>>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<IReadOnlyList<OrderDto>>> List(
+        [FromQuery] long? storeId,
+        [FromQuery] OrderStatus? status,
+        [FromQuery] PaymentStatus? paymentStatus,
+        [FromQuery] string? orderNo,
+        CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new SearchOrdersQuery
+        {
+            StoreId = storeId,
+            Status = status,
+            PaymentStatus = paymentStatus,
+            OrderNo = orderNo
+        }, cancellationToken);
+
+        return ApiResponse<IReadOnlyList<OrderDto>>.Ok(result);
+    }
+
+    /// <summary>
+    /// 获取订单详情。
+    /// </summary>
+    [HttpGet("{orderId:long}")]
+    [PermissionAuthorize("order:read")]
+    [ProducesResponseType(typeof(ApiResponse<OrderDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<OrderDto>> Detail(long orderId, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new GetOrderByIdQuery { OrderId = orderId }, cancellationToken);
+        return result == null
+            ? ApiResponse<OrderDto>.Error(ErrorCodes.NotFound, "订单不存在")
+            : ApiResponse<OrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 更新订单。
+    /// </summary>
+    [HttpPut("{orderId:long}")]
+    [PermissionAuthorize("order:update")]
+    [ProducesResponseType(typeof(ApiResponse<OrderDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<OrderDto>> Update(long orderId, [FromBody] UpdateOrderCommand command, CancellationToken cancellationToken)
+    {
+        command.OrderId = command.OrderId == 0 ? orderId : command.OrderId;
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<OrderDto>.Error(ErrorCodes.NotFound, "订单不存在")
+            : ApiResponse<OrderDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除订单。
+    /// </summary>
+    [HttpDelete("{orderId:long}")]
+    [PermissionAuthorize("order:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long orderId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeleteOrderCommand { OrderId = orderId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "订单不存在");
+    }
+}
diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/PaymentsController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/PaymentsController.cs
new file mode 100644
index 0000000..93ca700
--- /dev/null
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/PaymentsController.cs
@@ -0,0 +1,108 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Payments.Commands;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Application.App.Payments.Queries;
+using TakeoutSaaS.Domain.Payments.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.AdminApi.Controllers;
+
+/// <summary>
+/// 支付记录管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/admin/v{version:apiVersion}/payments")]
+public sealed class PaymentsController : BaseApiController
+{
+    private readonly IMediator _mediator;
+
+    /// <summary>
+    /// 初始化控制器。
+    /// </summary>
+    public PaymentsController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    /// <summary>
+    /// 创建支付记录。
+    /// </summary>
+    [HttpPost]
+    [PermissionAuthorize("payment:create")]
+    [ProducesResponseType(typeof(ApiResponse<PaymentDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<PaymentDto>> Create([FromBody] CreatePaymentCommand command, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(command, cancellationToken);
+        return ApiResponse<PaymentDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 查询支付记录列表。
+    /// </summary>
+    [HttpGet]
+    [PermissionAuthorize("payment:read")]
+    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<PaymentDto>>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<IReadOnlyList<PaymentDto>>> List([FromQuery] long? orderId, [FromQuery] PaymentStatus? status, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new SearchPaymentsQuery
+        {
+            OrderId = orderId,
+            Status = status
+        }, cancellationToken);
+
+        return ApiResponse<IReadOnlyList<PaymentDto>>.Ok(result);
+    }
+
+    /// <summary>
+    /// 获取支付记录详情。
+    /// </summary>
+    [HttpGet("{paymentId:long}")]
+    [PermissionAuthorize("payment:read")]
+    [ProducesResponseType(typeof(ApiResponse<PaymentDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<PaymentDto>> Detail(long paymentId, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new GetPaymentByIdQuery { PaymentId = paymentId }, cancellationToken);
+        return result == null
+            ? ApiResponse<PaymentDto>.Error(ErrorCodes.NotFound, "支付记录不存在")
+            : ApiResponse<PaymentDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 更新支付记录。
+    /// </summary>
+    [HttpPut("{paymentId:long}")]
+    [PermissionAuthorize("payment:update")]
+    [ProducesResponseType(typeof(ApiResponse<PaymentDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<PaymentDto>> Update(long paymentId, [FromBody] UpdatePaymentCommand command, CancellationToken cancellationToken)
+    {
+        command.PaymentId = command.PaymentId == 0 ? paymentId : command.PaymentId;
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<PaymentDto>.Error(ErrorCodes.NotFound, "支付记录不存在")
+            : ApiResponse<PaymentDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除支付记录。
+    /// </summary>
+    [HttpDelete("{paymentId:long}")]
+    [PermissionAuthorize("payment:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long paymentId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeletePaymentCommand { PaymentId = paymentId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "支付记录不存在");
+    }
+}
diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/ProductsController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/ProductsController.cs
new file mode 100644
index 0000000..4c8d42c
--- /dev/null
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/ProductsController.cs
@@ -0,0 +1,109 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Products.Commands;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Application.App.Products.Queries;
+using TakeoutSaaS.Domain.Products.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.AdminApi.Controllers;
+
+/// <summary>
+/// 商品管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/admin/v{version:apiVersion}/products")]
+public sealed class ProductsController : BaseApiController
+{
+    private readonly IMediator _mediator;
+
+    /// <summary>
+    /// 初始化控制器。
+    /// </summary>
+    public ProductsController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    /// <summary>
+    /// 创建商品。
+    /// </summary>
+    [HttpPost]
+    [PermissionAuthorize("product:create")]
+    [ProducesResponseType(typeof(ApiResponse<ProductDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<ProductDto>> Create([FromBody] CreateProductCommand command, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(command, cancellationToken);
+        return ApiResponse<ProductDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 查询商品列表。
+    /// </summary>
+    [HttpGet]
+    [PermissionAuthorize("product:read")]
+    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<ProductDto>>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<IReadOnlyList<ProductDto>>> List([FromQuery] long? storeId, [FromQuery] long? categoryId, [FromQuery] ProductStatus? status, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new SearchProductsQuery
+        {
+            StoreId = storeId,
+            CategoryId = categoryId,
+            Status = status
+        }, cancellationToken);
+
+        return ApiResponse<IReadOnlyList<ProductDto>>.Ok(result);
+    }
+
+    /// <summary>
+    /// 获取商品详情。
+    /// </summary>
+    [HttpGet("{productId:long}")]
+    [PermissionAuthorize("product:read")]
+    [ProducesResponseType(typeof(ApiResponse<ProductDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<ProductDto>> Detail(long productId, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new GetProductByIdQuery { ProductId = productId }, cancellationToken);
+        return result == null
+            ? ApiResponse<ProductDto>.Error(ErrorCodes.NotFound, "商品不存在")
+            : ApiResponse<ProductDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 更新商品。
+    /// </summary>
+    [HttpPut("{productId:long}")]
+    [PermissionAuthorize("product:update")]
+    [ProducesResponseType(typeof(ApiResponse<ProductDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<ProductDto>> Update(long productId, [FromBody] UpdateProductCommand command, CancellationToken cancellationToken)
+    {
+        command.ProductId = command.ProductId == 0 ? productId : command.ProductId;
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<ProductDto>.Error(ErrorCodes.NotFound, "商品不存在")
+            : ApiResponse<ProductDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除商品。
+    /// </summary>
+    [HttpDelete("{productId:long}")]
+    [PermissionAuthorize("product:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long productId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeleteProductCommand { ProductId = productId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "商品不存在");
+    }
+}
diff --git a/src/Api/TakeoutSaaS.AdminApi/Controllers/StoresController.cs b/src/Api/TakeoutSaaS.AdminApi/Controllers/StoresController.cs
new file mode 100644
index 0000000..e485df6
--- /dev/null
+++ b/src/Api/TakeoutSaaS.AdminApi/Controllers/StoresController.cs
@@ -0,0 +1,108 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Stores.Commands;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Application.App.Stores.Queries;
+using TakeoutSaaS.Domain.Stores.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.AdminApi.Controllers;
+
+/// <summary>
+/// 门店管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/admin/v{version:apiVersion}/stores")]
+public sealed class StoresController : BaseApiController
+{
+    private readonly IMediator _mediator;
+
+    /// <summary>
+    /// 初始化控制器。
+    /// </summary>
+    public StoresController(IMediator mediator)
+    {
+        _mediator = mediator;
+    }
+
+    /// <summary>
+    /// 创建门店。
+    /// </summary>
+    [HttpPost]
+    [PermissionAuthorize("store:create")]
+    [ProducesResponseType(typeof(ApiResponse<StoreDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<StoreDto>> Create([FromBody] CreateStoreCommand command, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(command, cancellationToken);
+        return ApiResponse<StoreDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 查询门店列表。
+    /// </summary>
+    [HttpGet]
+    [PermissionAuthorize("store:read")]
+    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<StoreDto>>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<IReadOnlyList<StoreDto>>> List([FromQuery] long? merchantId, [FromQuery] StoreStatus? status, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new SearchStoresQuery
+        {
+            MerchantId = merchantId,
+            Status = status
+        }, cancellationToken);
+
+        return ApiResponse<IReadOnlyList<StoreDto>>.Ok(result);
+    }
+
+    /// <summary>
+    /// 获取门店详情。
+    /// </summary>
+    [HttpGet("{storeId:long}")]
+    [PermissionAuthorize("store:read")]
+    [ProducesResponseType(typeof(ApiResponse<StoreDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<StoreDto>> Detail(long storeId, CancellationToken cancellationToken)
+    {
+        var result = await _mediator.Send(new GetStoreByIdQuery { StoreId = storeId }, cancellationToken);
+        return result == null
+            ? ApiResponse<StoreDto>.Error(ErrorCodes.NotFound, "门店不存在")
+            : ApiResponse<StoreDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 更新门店。
+    /// </summary>
+    [HttpPut("{storeId:long}")]
+    [PermissionAuthorize("store:update")]
+    [ProducesResponseType(typeof(ApiResponse<StoreDto>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<StoreDto>> Update(long storeId, [FromBody] UpdateStoreCommand command, CancellationToken cancellationToken)
+    {
+        command.StoreId = command.StoreId == 0 ? storeId : command.StoreId;
+        var result = await _mediator.Send(command, cancellationToken);
+        return result == null
+            ? ApiResponse<StoreDto>.Error(ErrorCodes.NotFound, "门店不存在")
+            : ApiResponse<StoreDto>.Ok(result);
+    }
+
+    /// <summary>
+    /// 删除门店。
+    /// </summary>
+    [HttpDelete("{storeId:long}")]
+    [PermissionAuthorize("store:delete")]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
+    public async Task<ApiResponse<object>> Delete(long storeId, CancellationToken cancellationToken)
+    {
+        var success = await _mediator.Send(new DeleteStoreCommand { StoreId = storeId }, cancellationToken);
+        return success
+            ? ApiResponse<object>.Ok(null)
+            : ApiResponse<object>.Error(ErrorCodes.NotFound, "门店不存在");
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/CreateDeliveryOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/CreateDeliveryOrderCommand.cs
new file mode 100644
index 0000000..8f5a2b7
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/CreateDeliveryOrderCommand.cs
@@ -0,0 +1,66 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Commands;
+
+/// <summary>
+/// 创建配送单命令。
+/// </summary>
+public sealed class CreateDeliveryOrderCommand : IRequest<DeliveryOrderDto>
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+
+    /// <summary>
+    /// 服务商。
+    /// </summary>
+    public DeliveryProvider Provider { get; set; } = DeliveryProvider.InHouse;
+
+    /// <summary>
+    /// 第三方单号。
+    /// </summary>
+    public string? ProviderOrderId { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public DeliveryStatus Status { get; set; } = DeliveryStatus.Pending;
+
+    /// <summary>
+    /// 配送费。
+    /// </summary>
+    public decimal? DeliveryFee { get; set; }
+
+    /// <summary>
+    /// 骑手姓名。
+    /// </summary>
+    public string? CourierName { get; set; }
+
+    /// <summary>
+    /// 骑手电话。
+    /// </summary>
+    public string? CourierPhone { get; set; }
+
+    /// <summary>
+    /// 下发时间。
+    /// </summary>
+    public DateTime? DispatchedAt { get; set; }
+
+    /// <summary>
+    /// 取餐时间。
+    /// </summary>
+    public DateTime? PickedUpAt { get; set; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? DeliveredAt { get; set; }
+
+    /// <summary>
+    /// 异常原因。
+    /// </summary>
+    public string? FailureReason { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/DeleteDeliveryOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/DeleteDeliveryOrderCommand.cs
new file mode 100644
index 0000000..b05162d
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/DeleteDeliveryOrderCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Commands;
+
+/// <summary>
+/// 删除配送单命令。
+/// </summary>
+public sealed class DeleteDeliveryOrderCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 配送单 ID。
+    /// </summary>
+    public long DeliveryOrderId { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/UpdateDeliveryOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/UpdateDeliveryOrderCommand.cs
new file mode 100644
index 0000000..cf57bbb
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Commands/UpdateDeliveryOrderCommand.cs
@@ -0,0 +1,71 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Commands;
+
+/// <summary>
+/// 更新配送单命令。
+/// </summary>
+public sealed class UpdateDeliveryOrderCommand : IRequest<DeliveryOrderDto?>
+{
+    /// <summary>
+    /// 配送单 ID。
+    /// </summary>
+    public long DeliveryOrderId { get; set; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+
+    /// <summary>
+    /// 服务商。
+    /// </summary>
+    public DeliveryProvider Provider { get; set; } = DeliveryProvider.InHouse;
+
+    /// <summary>
+    /// 第三方单号。
+    /// </summary>
+    public string? ProviderOrderId { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public DeliveryStatus Status { get; set; } = DeliveryStatus.Pending;
+
+    /// <summary>
+    /// 配送费。
+    /// </summary>
+    public decimal? DeliveryFee { get; set; }
+
+    /// <summary>
+    /// 骑手姓名。
+    /// </summary>
+    public string? CourierName { get; set; }
+
+    /// <summary>
+    /// 骑手电话。
+    /// </summary>
+    public string? CourierPhone { get; set; }
+
+    /// <summary>
+    /// 下发时间。
+    /// </summary>
+    public DateTime? DispatchedAt { get; set; }
+
+    /// <summary>
+    /// 取餐时间。
+    /// </summary>
+    public DateTime? PickedUpAt { get; set; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? DeliveredAt { get; set; }
+
+    /// <summary>
+    /// 异常原因。
+    /// </summary>
+    public string? FailureReason { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryEventDto.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryEventDto.cs
new file mode 100644
index 0000000..a8d2a7e
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryEventDto.cs
@@ -0,0 +1,43 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Dto;
+
+/// <summary>
+/// 配送事件 DTO。
+/// </summary>
+public sealed class DeliveryEventDto
+{
+    /// <summary>
+    /// 事件 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 配送单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long DeliveryOrderId { get; init; }
+
+    /// <summary>
+    /// 事件类型。
+    /// </summary>
+    public DeliveryEventType EventType { get; init; }
+
+    /// <summary>
+    /// 描述。
+    /// </summary>
+    public string? Message { get; init; }
+
+    /// <summary>
+    /// 事件时间。
+    /// </summary>
+    public DateTime OccurredAt { get; init; }
+
+    /// <summary>
+    /// 原始载荷。
+    /// </summary>
+    public string? Payload { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryOrderDto.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryOrderDto.cs
new file mode 100644
index 0000000..21fc36c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Dto/DeliveryOrderDto.cs
@@ -0,0 +1,84 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Dto;
+
+/// <summary>
+/// 配送单 DTO。
+/// </summary>
+public sealed class DeliveryOrderDto
+{
+    /// <summary>
+    /// 配送单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 租户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long TenantId { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 配送服务商。
+    /// </summary>
+    public DeliveryProvider Provider { get; init; }
+
+    /// <summary>
+    /// 第三方配送单号。
+    /// </summary>
+    public string? ProviderOrderId { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public DeliveryStatus Status { get; init; }
+
+    /// <summary>
+    /// 配送费。
+    /// </summary>
+    public decimal? DeliveryFee { get; init; }
+
+    /// <summary>
+    /// 骑手姓名。
+    /// </summary>
+    public string? CourierName { get; init; }
+
+    /// <summary>
+    /// 骑手电话。
+    /// </summary>
+    public string? CourierPhone { get; init; }
+
+    /// <summary>
+    /// 下发时间。
+    /// </summary>
+    public DateTime? DispatchedAt { get; init; }
+
+    /// <summary>
+    /// 取餐时间。
+    /// </summary>
+    public DateTime? PickedUpAt { get; init; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? DeliveredAt { get; init; }
+
+    /// <summary>
+    /// 异常原因。
+    /// </summary>
+    public string? FailureReason { get; init; }
+
+    /// <summary>
+    /// 事件列表。
+    /// </summary>
+    public IReadOnlyList<DeliveryEventDto> Events { get; init; } = Array.Empty<DeliveryEventDto>();
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/CreateDeliveryOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/CreateDeliveryOrderCommandHandler.cs
new file mode 100644
index 0000000..8e775e9
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/CreateDeliveryOrderCommandHandler.cs
@@ -0,0 +1,69 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Deliveries.Commands;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Domain.Deliveries.Entities;
+using TakeoutSaaS.Domain.Deliveries.Repositories;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
+
+/// <summary>
+/// 创建配送单命令处理器。
+/// </summary>
+public sealed class CreateDeliveryOrderCommandHandler(IDeliveryRepository deliveryRepository, ILogger<CreateDeliveryOrderCommandHandler> logger)
+    : IRequestHandler<CreateDeliveryOrderCommand, DeliveryOrderDto>
+{
+    private readonly IDeliveryRepository _deliveryRepository = deliveryRepository;
+    private readonly ILogger<CreateDeliveryOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<DeliveryOrderDto> Handle(CreateDeliveryOrderCommand request, CancellationToken cancellationToken)
+    {
+        var deliveryOrder = new DeliveryOrder
+        {
+            OrderId = request.OrderId,
+            Provider = request.Provider,
+            ProviderOrderId = request.ProviderOrderId?.Trim(),
+            Status = request.Status,
+            DeliveryFee = request.DeliveryFee,
+            CourierName = request.CourierName?.Trim(),
+            CourierPhone = request.CourierPhone?.Trim(),
+            DispatchedAt = request.DispatchedAt,
+            PickedUpAt = request.PickedUpAt,
+            DeliveredAt = request.DeliveredAt,
+            FailureReason = request.FailureReason?.Trim()
+        };
+
+        await _deliveryRepository.AddDeliveryOrderAsync(deliveryOrder, cancellationToken);
+        await _deliveryRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("创建配送单 {DeliveryOrderId} 对应订单 {OrderId}", deliveryOrder.Id, deliveryOrder.OrderId);
+
+        return MapToDto(deliveryOrder, []);
+    }
+
+    private static DeliveryOrderDto MapToDto(DeliveryOrder deliveryOrder, IReadOnlyList<DeliveryEvent> events) => new()
+    {
+        Id = deliveryOrder.Id,
+        TenantId = deliveryOrder.TenantId,
+        OrderId = deliveryOrder.OrderId,
+        Provider = deliveryOrder.Provider,
+        ProviderOrderId = deliveryOrder.ProviderOrderId,
+        Status = deliveryOrder.Status,
+        DeliveryFee = deliveryOrder.DeliveryFee,
+        CourierName = deliveryOrder.CourierName,
+        CourierPhone = deliveryOrder.CourierPhone,
+        DispatchedAt = deliveryOrder.DispatchedAt,
+        PickedUpAt = deliveryOrder.PickedUpAt,
+        DeliveredAt = deliveryOrder.DeliveredAt,
+        FailureReason = deliveryOrder.FailureReason,
+        Events = events.Select(x => new DeliveryEventDto
+        {
+            Id = x.Id,
+            DeliveryOrderId = x.DeliveryOrderId,
+            EventType = x.EventType,
+            Message = x.Message,
+            OccurredAt = x.OccurredAt,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/DeleteDeliveryOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/DeleteDeliveryOrderCommandHandler.cs
new file mode 100644
index 0000000..40974f1
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/DeleteDeliveryOrderCommandHandler.cs
@@ -0,0 +1,38 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Deliveries.Commands;
+using TakeoutSaaS.Domain.Deliveries.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
+
+/// <summary>
+/// 删除配送单命令处理器。
+/// </summary>
+public sealed class DeleteDeliveryOrderCommandHandler(
+    IDeliveryRepository deliveryRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteDeliveryOrderCommandHandler> logger)
+    : IRequestHandler<DeleteDeliveryOrderCommand, bool>
+{
+    private readonly IDeliveryRepository _deliveryRepository = deliveryRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeleteDeliveryOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteDeliveryOrderCommand request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _deliveryRepository.FindByIdAsync(request.DeliveryOrderId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        await _deliveryRepository.DeleteDeliveryOrderAsync(request.DeliveryOrderId, tenantId, cancellationToken);
+        await _deliveryRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除配送单 {DeliveryOrderId}", request.DeliveryOrderId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/GetDeliveryOrderByIdQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/GetDeliveryOrderByIdQueryHandler.cs
new file mode 100644
index 0000000..8d047de
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/GetDeliveryOrderByIdQueryHandler.cs
@@ -0,0 +1,60 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Application.App.Deliveries.Queries;
+using TakeoutSaaS.Domain.Deliveries.Entities;
+using TakeoutSaaS.Domain.Deliveries.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
+
+/// <summary>
+/// 配送单详情查询处理器。
+/// </summary>
+public sealed class GetDeliveryOrderByIdQueryHandler(
+    IDeliveryRepository deliveryRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetDeliveryOrderByIdQuery, DeliveryOrderDto?>
+{
+    private readonly IDeliveryRepository _deliveryRepository = deliveryRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<DeliveryOrderDto?> Handle(GetDeliveryOrderByIdQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var order = await _deliveryRepository.FindByIdAsync(request.DeliveryOrderId, tenantId, cancellationToken);
+        if (order == null)
+        {
+            return null;
+        }
+
+        var events = await _deliveryRepository.GetEventsAsync(order.Id, tenantId, cancellationToken);
+        return MapToDto(order, events);
+    }
+
+    private static DeliveryOrderDto MapToDto(DeliveryOrder deliveryOrder, IReadOnlyList<DeliveryEvent> events) => new()
+    {
+        Id = deliveryOrder.Id,
+        TenantId = deliveryOrder.TenantId,
+        OrderId = deliveryOrder.OrderId,
+        Provider = deliveryOrder.Provider,
+        ProviderOrderId = deliveryOrder.ProviderOrderId,
+        Status = deliveryOrder.Status,
+        DeliveryFee = deliveryOrder.DeliveryFee,
+        CourierName = deliveryOrder.CourierName,
+        CourierPhone = deliveryOrder.CourierPhone,
+        DispatchedAt = deliveryOrder.DispatchedAt,
+        PickedUpAt = deliveryOrder.PickedUpAt,
+        DeliveredAt = deliveryOrder.DeliveredAt,
+        FailureReason = deliveryOrder.FailureReason,
+        Events = events.Select(x => new DeliveryEventDto
+        {
+            Id = x.Id,
+            DeliveryOrderId = x.DeliveryOrderId,
+            EventType = x.EventType,
+            Message = x.Message,
+            OccurredAt = x.OccurredAt,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/SearchDeliveryOrdersQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/SearchDeliveryOrdersQueryHandler.cs
new file mode 100644
index 0000000..5dea6a9
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/SearchDeliveryOrdersQueryHandler.cs
@@ -0,0 +1,43 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Application.App.Deliveries.Queries;
+using TakeoutSaaS.Domain.Deliveries.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
+
+/// <summary>
+/// 配送单列表查询处理器。
+/// </summary>
+public sealed class SearchDeliveryOrdersQueryHandler(
+    IDeliveryRepository deliveryRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchDeliveryOrdersQuery, IReadOnlyList<DeliveryOrderDto>>
+{
+    private readonly IDeliveryRepository _deliveryRepository = deliveryRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<DeliveryOrderDto>> Handle(SearchDeliveryOrdersQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var orders = await _deliveryRepository.SearchAsync(tenantId, request.Status, request.OrderId, cancellationToken);
+
+        return orders.Select(order => new DeliveryOrderDto
+        {
+            Id = order.Id,
+            TenantId = order.TenantId,
+            OrderId = order.OrderId,
+            Provider = order.Provider,
+            ProviderOrderId = order.ProviderOrderId,
+            Status = order.Status,
+            DeliveryFee = order.DeliveryFee,
+            CourierName = order.CourierName,
+            CourierPhone = order.CourierPhone,
+            DispatchedAt = order.DispatchedAt,
+            PickedUpAt = order.PickedUpAt,
+            DeliveredAt = order.DeliveredAt,
+            FailureReason = order.FailureReason
+        }).ToList();
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/UpdateDeliveryOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/UpdateDeliveryOrderCommandHandler.cs
new file mode 100644
index 0000000..424e2a9
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Handlers/UpdateDeliveryOrderCommandHandler.cs
@@ -0,0 +1,79 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Deliveries.Commands;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Domain.Deliveries.Entities;
+using TakeoutSaaS.Domain.Deliveries.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Handlers;
+
+/// <summary>
+/// 更新配送单命令处理器。
+/// </summary>
+public sealed class UpdateDeliveryOrderCommandHandler(
+    IDeliveryRepository deliveryRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdateDeliveryOrderCommandHandler> logger)
+    : IRequestHandler<UpdateDeliveryOrderCommand, DeliveryOrderDto?>
+{
+    private readonly IDeliveryRepository _deliveryRepository = deliveryRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdateDeliveryOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<DeliveryOrderDto?> Handle(UpdateDeliveryOrderCommand request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _deliveryRepository.FindByIdAsync(request.DeliveryOrderId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        existing.OrderId = request.OrderId;
+        existing.Provider = request.Provider;
+        existing.ProviderOrderId = request.ProviderOrderId?.Trim();
+        existing.Status = request.Status;
+        existing.DeliveryFee = request.DeliveryFee;
+        existing.CourierName = request.CourierName?.Trim();
+        existing.CourierPhone = request.CourierPhone?.Trim();
+        existing.DispatchedAt = request.DispatchedAt;
+        existing.PickedUpAt = request.PickedUpAt;
+        existing.DeliveredAt = request.DeliveredAt;
+        existing.FailureReason = request.FailureReason?.Trim();
+
+        await _deliveryRepository.UpdateDeliveryOrderAsync(existing, cancellationToken);
+        await _deliveryRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新配送单 {DeliveryOrderId}", existing.Id);
+
+        var events = await _deliveryRepository.GetEventsAsync(existing.Id, tenantId, cancellationToken);
+        return MapToDto(existing, events);
+    }
+
+    private static DeliveryOrderDto MapToDto(DeliveryOrder deliveryOrder, IReadOnlyList<DeliveryEvent> events) => new()
+    {
+        Id = deliveryOrder.Id,
+        TenantId = deliveryOrder.TenantId,
+        OrderId = deliveryOrder.OrderId,
+        Provider = deliveryOrder.Provider,
+        ProviderOrderId = deliveryOrder.ProviderOrderId,
+        Status = deliveryOrder.Status,
+        DeliveryFee = deliveryOrder.DeliveryFee,
+        CourierName = deliveryOrder.CourierName,
+        CourierPhone = deliveryOrder.CourierPhone,
+        DispatchedAt = deliveryOrder.DispatchedAt,
+        PickedUpAt = deliveryOrder.PickedUpAt,
+        DeliveredAt = deliveryOrder.DeliveredAt,
+        FailureReason = deliveryOrder.FailureReason,
+        Events = events.Select(x => new DeliveryEventDto
+        {
+            Id = x.Id,
+            DeliveryOrderId = x.DeliveryOrderId,
+            EventType = x.EventType,
+            Message = x.Message,
+            OccurredAt = x.OccurredAt,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/GetDeliveryOrderByIdQuery.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/GetDeliveryOrderByIdQuery.cs
new file mode 100644
index 0000000..0b89cae
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/GetDeliveryOrderByIdQuery.cs
@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Queries;
+
+/// <summary>
+/// 配送单详情查询。
+/// </summary>
+public sealed class GetDeliveryOrderByIdQuery : IRequest<DeliveryOrderDto?>
+{
+    /// <summary>
+    /// 配送单 ID。
+    /// </summary>
+    public long DeliveryOrderId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/SearchDeliveryOrdersQuery.cs b/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/SearchDeliveryOrdersQuery.cs
new file mode 100644
index 0000000..53d439c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Deliveries/Queries/SearchDeliveryOrdersQuery.cs
@@ -0,0 +1,21 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Deliveries.Dto;
+using TakeoutSaaS.Domain.Deliveries.Enums;
+
+namespace TakeoutSaaS.Application.App.Deliveries.Queries;
+
+/// <summary>
+/// 配送单列表查询。
+/// </summary>
+public sealed class SearchDeliveryOrdersQuery : IRequest<IReadOnlyList<DeliveryOrderDto>>
+{
+    /// <summary>
+    /// 订单 ID（可选）。
+    /// </summary>
+    public long? OrderId { get; init; }
+
+    /// <summary>
+    /// 配送状态。
+    /// </summary>
+    public DeliveryStatus? Status { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/DeleteMerchantCommand.cs b/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/DeleteMerchantCommand.cs
new file mode 100644
index 0000000..415665c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/DeleteMerchantCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Merchants.Commands;
+
+/// <summary>
+/// 删除商户命令。
+/// </summary>
+public sealed class DeleteMerchantCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    public long MerchantId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/UpdateMerchantCommand.cs b/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/UpdateMerchantCommand.cs
new file mode 100644
index 0000000..2b73adc
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Merchants/Commands/UpdateMerchantCommand.cs
@@ -0,0 +1,51 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Merchants.Dto;
+using TakeoutSaaS.Domain.Merchants.Enums;
+
+namespace TakeoutSaaS.Application.App.Merchants.Commands;
+
+/// <summary>
+/// 更新商户命令。
+/// </summary>
+public sealed class UpdateMerchantCommand : IRequest<MerchantDto?>
+{
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    public long MerchantId { get; set; }
+
+    /// <summary>
+    /// 品牌名称。
+    /// </summary>
+    public string BrandName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 品牌简称。
+    /// </summary>
+    public string? BrandAlias { get; set; }
+
+    /// <summary>
+    /// Logo 地址。
+    /// </summary>
+    public string? LogoUrl { get; set; }
+
+    /// <summary>
+    /// 品类。
+    /// </summary>
+    public string? Category { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string ContactPhone { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 联系邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 入驻状态。
+    /// </summary>
+    public MerchantStatus Status { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/DeleteMerchantCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/DeleteMerchantCommandHandler.cs
new file mode 100644
index 0000000..8f69ff0
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/DeleteMerchantCommandHandler.cs
@@ -0,0 +1,40 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Merchants.Commands;
+using TakeoutSaaS.Domain.Merchants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Merchants.Handlers;
+
+/// <summary>
+/// 删除商户命令处理器。
+/// </summary>
+public sealed class DeleteMerchantCommandHandler(
+    IMerchantRepository merchantRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteMerchantCommandHandler> logger)
+    : IRequestHandler<DeleteMerchantCommand, bool>
+{
+    private readonly IMerchantRepository _merchantRepository = merchantRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeleteMerchantCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteMerchantCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 校验存在性
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _merchantRepository.FindByIdAsync(request.MerchantId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        // 2. 删除
+        await _merchantRepository.DeleteMerchantAsync(request.MerchantId, tenantId, cancellationToken);
+        await _merchantRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除商户 {MerchantId}", request.MerchantId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/UpdateMerchantCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/UpdateMerchantCommandHandler.cs
new file mode 100644
index 0000000..d825b72
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Merchants/Handlers/UpdateMerchantCommandHandler.cs
@@ -0,0 +1,65 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Merchants.Commands;
+using TakeoutSaaS.Application.App.Merchants.Dto;
+using TakeoutSaaS.Domain.Merchants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Merchants.Handlers;
+
+/// <summary>
+/// 更新商户命令处理器。
+/// </summary>
+public sealed class UpdateMerchantCommandHandler(
+    IMerchantRepository merchantRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdateMerchantCommandHandler> logger)
+    : IRequestHandler<UpdateMerchantCommand, MerchantDto?>
+{
+    private readonly IMerchantRepository _merchantRepository = merchantRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdateMerchantCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<MerchantDto?> Handle(UpdateMerchantCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 读取现有商户
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _merchantRepository.FindByIdAsync(request.MerchantId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        // 2. 更新字段
+        existing.BrandName = request.BrandName.Trim();
+        existing.BrandAlias = request.BrandAlias?.Trim();
+        existing.LogoUrl = request.LogoUrl?.Trim();
+        existing.Category = request.Category?.Trim();
+        existing.ContactPhone = request.ContactPhone.Trim();
+        existing.ContactEmail = request.ContactEmail?.Trim();
+        existing.Status = request.Status;
+
+        // 3. 持久化
+        await _merchantRepository.UpdateMerchantAsync(existing, cancellationToken);
+        await _merchantRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新商户 {MerchantId} - {BrandName}", existing.Id, existing.BrandName);
+
+        // 4. 返回 DTO
+        return MapToDto(existing);
+    }
+
+    private static MerchantDto MapToDto(Domain.Merchants.Entities.Merchant merchant) => new()
+    {
+        Id = merchant.Id,
+        TenantId = merchant.TenantId,
+        BrandName = merchant.BrandName,
+        BrandAlias = merchant.BrandAlias,
+        LogoUrl = merchant.LogoUrl,
+        Category = merchant.Category,
+        ContactPhone = merchant.ContactPhone,
+        ContactEmail = merchant.ContactEmail,
+        Status = merchant.Status,
+        JoinedAt = merchant.JoinedAt
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Commands/CreateOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/CreateOrderCommand.cs
new file mode 100644
index 0000000..824de33
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/CreateOrderCommand.cs
@@ -0,0 +1,117 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Orders.Commands;
+
+/// <summary>
+/// 创建订单命令。
+/// </summary>
+public sealed class CreateOrderCommand : IRequest<OrderDto>
+{
+    /// <summary>
+    /// 订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+
+    /// <summary>
+    /// 渠道。
+    /// </summary>
+    public OrderChannel Channel { get; set; } = OrderChannel.MiniProgram;
+
+    /// <summary>
+    /// 履约方式。
+    /// </summary>
+    public DeliveryType DeliveryType { get; set; } = DeliveryType.DineIn;
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public OrderStatus Status { get; set; } = OrderStatus.PendingPayment;
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus PaymentStatus { get; set; } = PaymentStatus.Unpaid;
+
+    /// <summary>
+    /// 顾客姓名。
+    /// </summary>
+    public string? CustomerName { get; set; }
+
+    /// <summary>
+    /// 顾客手机号。
+    /// </summary>
+    public string? CustomerPhone { get; set; }
+
+    /// <summary>
+    /// 桌号。
+    /// </summary>
+    public string? TableNo { get; set; }
+
+    /// <summary>
+    /// 排队号。
+    /// </summary>
+    public string? QueueNumber { get; set; }
+
+    /// <summary>
+    /// 预约 ID。
+    /// </summary>
+    public long? ReservationId { get; set; }
+
+    /// <summary>
+    /// 商品金额。
+    /// </summary>
+    public decimal ItemsAmount { get; set; }
+
+    /// <summary>
+    /// 优惠金额。
+    /// </summary>
+    public decimal DiscountAmount { get; set; }
+
+    /// <summary>
+    /// 应付金额。
+    /// </summary>
+    public decimal PayableAmount { get; set; }
+
+    /// <summary>
+    /// 实付金额。
+    /// </summary>
+    public decimal PaidAmount { get; set; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; set; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? FinishedAt { get; set; }
+
+    /// <summary>
+    /// 取消时间。
+    /// </summary>
+    public DateTime? CancelledAt { get; set; }
+
+    /// <summary>
+    /// 取消原因。
+    /// </summary>
+    public string? CancelReason { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; set; }
+
+    /// <summary>
+    /// 明细。
+    /// </summary>
+    public IReadOnlyList<OrderItemRequest> Items { get; set; } = Array.Empty<OrderItemRequest>();
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Commands/DeleteOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/DeleteOrderCommand.cs
new file mode 100644
index 0000000..f7632c6
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/DeleteOrderCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Orders.Commands;
+
+/// <summary>
+/// 删除订单命令。
+/// </summary>
+public sealed class DeleteOrderCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Commands/OrderItemRequest.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/OrderItemRequest.cs
new file mode 100644
index 0000000..544cd85
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/OrderItemRequest.cs
@@ -0,0 +1,52 @@
+namespace TakeoutSaaS.Application.App.Orders.Commands;
+
+/// <summary>
+/// 订单明细请求。
+/// </summary>
+public sealed class OrderItemRequest
+{
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    public long ProductId { get; set; }
+
+    /// <summary>
+    /// 商品名称。
+    /// </summary>
+    public string ProductName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// SKU 描述。
+    /// </summary>
+    public string? SkuName { get; set; }
+
+    /// <summary>
+    /// 单位。
+    /// </summary>
+    public string? Unit { get; set; }
+
+    /// <summary>
+    /// 数量。
+    /// </summary>
+    public int Quantity { get; set; }
+
+    /// <summary>
+    /// 单价。
+    /// </summary>
+    public decimal UnitPrice { get; set; }
+
+    /// <summary>
+    /// 折扣金额。
+    /// </summary>
+    public decimal DiscountAmount { get; set; }
+
+    /// <summary>
+    /// 小计。
+    /// </summary>
+    public decimal SubTotal { get; set; }
+
+    /// <summary>
+    /// 属性 JSON。
+    /// </summary>
+    public string? AttributesJson { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Commands/UpdateOrderCommand.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/UpdateOrderCommand.cs
new file mode 100644
index 0000000..a9c832a
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Commands/UpdateOrderCommand.cs
@@ -0,0 +1,117 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Orders.Commands;
+
+/// <summary>
+/// 更新订单命令。
+/// </summary>
+public sealed class UpdateOrderCommand : IRequest<OrderDto?>
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+
+    /// <summary>
+    /// 订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+
+    /// <summary>
+    /// 渠道。
+    /// </summary>
+    public OrderChannel Channel { get; set; } = OrderChannel.MiniProgram;
+
+    /// <summary>
+    /// 履约方式。
+    /// </summary>
+    public DeliveryType DeliveryType { get; set; } = DeliveryType.DineIn;
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public OrderStatus Status { get; set; } = OrderStatus.PendingPayment;
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus PaymentStatus { get; set; } = PaymentStatus.Unpaid;
+
+    /// <summary>
+    /// 顾客姓名。
+    /// </summary>
+    public string? CustomerName { get; set; }
+
+    /// <summary>
+    /// 顾客手机号。
+    /// </summary>
+    public string? CustomerPhone { get; set; }
+
+    /// <summary>
+    /// 桌号。
+    /// </summary>
+    public string? TableNo { get; set; }
+
+    /// <summary>
+    /// 排队号。
+    /// </summary>
+    public string? QueueNumber { get; set; }
+
+    /// <summary>
+    /// 预约 ID。
+    /// </summary>
+    public long? ReservationId { get; set; }
+
+    /// <summary>
+    /// 商品金额。
+    /// </summary>
+    public decimal ItemsAmount { get; set; }
+
+    /// <summary>
+    /// 优惠金额。
+    /// </summary>
+    public decimal DiscountAmount { get; set; }
+
+    /// <summary>
+    /// 应付金额。
+    /// </summary>
+    public decimal PayableAmount { get; set; }
+
+    /// <summary>
+    /// 实付金额。
+    /// </summary>
+    public decimal PaidAmount { get; set; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; set; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? FinishedAt { get; set; }
+
+    /// <summary>
+    /// 取消时间。
+    /// </summary>
+    public DateTime? CancelledAt { get; set; }
+
+    /// <summary>
+    /// 取消原因。
+    /// </summary>
+    public string? CancelReason { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderDto.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderDto.cs
new file mode 100644
index 0000000..0358f7c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderDto.cs
@@ -0,0 +1,141 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Domain.Payments.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Orders.Dto;
+
+/// <summary>
+/// 订单 DTO。
+/// </summary>
+public sealed class OrderDto
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 租户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long TenantId { get; init; }
+
+    /// <summary>
+    /// 订单号。
+    /// </summary>
+    public string OrderNo { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long StoreId { get; init; }
+
+    /// <summary>
+    /// 渠道。
+    /// </summary>
+    public OrderChannel Channel { get; init; }
+
+    /// <summary>
+    /// 履约方式。
+    /// </summary>
+    public DeliveryType DeliveryType { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public OrderStatus Status { get; init; }
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus PaymentStatus { get; init; }
+
+    /// <summary>
+    /// 顾客姓名。
+    /// </summary>
+    public string? CustomerName { get; init; }
+
+    /// <summary>
+    /// 顾客手机号。
+    /// </summary>
+    public string? CustomerPhone { get; init; }
+
+    /// <summary>
+    /// 桌号。
+    /// </summary>
+    public string? TableNo { get; init; }
+
+    /// <summary>
+    /// 排队号。
+    /// </summary>
+    public string? QueueNumber { get; init; }
+
+    /// <summary>
+    /// 预约 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long? ReservationId { get; init; }
+
+    /// <summary>
+    /// 商品金额。
+    /// </summary>
+    public decimal ItemsAmount { get; init; }
+
+    /// <summary>
+    /// 优惠金额。
+    /// </summary>
+    public decimal DiscountAmount { get; init; }
+
+    /// <summary>
+    /// 应付金额。
+    /// </summary>
+    public decimal PayableAmount { get; init; }
+
+    /// <summary>
+    /// 实付金额。
+    /// </summary>
+    public decimal PaidAmount { get; init; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; init; }
+
+    /// <summary>
+    /// 完成时间。
+    /// </summary>
+    public DateTime? FinishedAt { get; init; }
+
+    /// <summary>
+    /// 取消时间。
+    /// </summary>
+    public DateTime? CancelledAt { get; init; }
+
+    /// <summary>
+    /// 取消原因。
+    /// </summary>
+    public string? CancelReason { get; init; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; init; }
+
+    /// <summary>
+    /// 明细。
+    /// </summary>
+    public IReadOnlyList<OrderItemDto> Items { get; init; } = Array.Empty<OrderItemDto>();
+
+    /// <summary>
+    /// 状态流转。
+    /// </summary>
+    public IReadOnlyList<OrderStatusHistoryDto> StatusHistory { get; init; } = Array.Empty<OrderStatusHistoryDto>();
+
+    /// <summary>
+    /// 退款申请。
+    /// </summary>
+    public IReadOnlyList<RefundRequestDto> Refunds { get; init; } = Array.Empty<RefundRequestDto>();
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderItemDto.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderItemDto.cs
new file mode 100644
index 0000000..6baa720
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderItemDto.cs
@@ -0,0 +1,68 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Orders.Dto;
+
+/// <summary>
+/// 订单明细 DTO。
+/// </summary>
+public sealed class OrderItemDto
+{
+    /// <summary>
+    /// 明细 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long ProductId { get; init; }
+
+    /// <summary>
+    /// 商品名称。
+    /// </summary>
+    public string ProductName { get; init; } = string.Empty;
+
+    /// <summary>
+    /// SKU 描述。
+    /// </summary>
+    public string? SkuName { get; init; }
+
+    /// <summary>
+    /// 单位。
+    /// </summary>
+    public string? Unit { get; init; }
+
+    /// <summary>
+    /// 数量。
+    /// </summary>
+    public int Quantity { get; init; }
+
+    /// <summary>
+    /// 单价。
+    /// </summary>
+    public decimal UnitPrice { get; init; }
+
+    /// <summary>
+    /// 折扣金额。
+    /// </summary>
+    public decimal DiscountAmount { get; init; }
+
+    /// <summary>
+    /// 小计。
+    /// </summary>
+    public decimal SubTotal { get; init; }
+
+    /// <summary>
+    /// 属性 JSON。
+    /// </summary>
+    public string? AttributesJson { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderStatusHistoryDto.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderStatusHistoryDto.cs
new file mode 100644
index 0000000..e62e45e
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/OrderStatusHistoryDto.cs
@@ -0,0 +1,44 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Orders.Dto;
+
+/// <summary>
+/// 订单状态流转 DTO。
+/// </summary>
+public sealed class OrderStatusHistoryDto
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public OrderStatus Status { get; init; }
+
+    /// <summary>
+    /// 操作人。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long? OperatorId { get; init; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Notes { get; init; }
+
+    /// <summary>
+    /// 时间。
+    /// </summary>
+    public DateTime OccurredAt { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Dto/RefundRequestDto.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/RefundRequestDto.cs
new file mode 100644
index 0000000..d389554
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Dto/RefundRequestDto.cs
@@ -0,0 +1,58 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Orders.Dto;
+
+/// <summary>
+/// 退款申请 DTO。
+/// </summary>
+public sealed class RefundRequestDto
+{
+    /// <summary>
+    /// 退款 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 退款单号。
+    /// </summary>
+    public string RefundNo { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; init; }
+
+    /// <summary>
+    /// 原因。
+    /// </summary>
+    public string Reason { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public RefundStatus Status { get; init; }
+
+    /// <summary>
+    /// 申请时间。
+    /// </summary>
+    public DateTime RequestedAt { get; init; }
+
+    /// <summary>
+    /// 处理时间。
+    /// </summary>
+    public DateTime? ProcessedAt { get; init; }
+
+    /// <summary>
+    /// 审核备注。
+    /// </summary>
+    public string? ReviewNotes { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/CreateOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/CreateOrderCommandHandler.cs
new file mode 100644
index 0000000..057b018
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/CreateOrderCommandHandler.cs
@@ -0,0 +1,156 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Orders.Commands;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Domain.Orders.Entities;
+using TakeoutSaaS.Domain.Orders.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Ids;
+
+namespace TakeoutSaaS.Application.App.Orders.Handlers;
+
+/// <summary>
+/// 创建订单命令处理器。
+/// </summary>
+public sealed class CreateOrderCommandHandler(
+    IOrderRepository orderRepository,
+    IIdGenerator idGenerator,
+    ILogger<CreateOrderCommandHandler> logger)
+    : IRequestHandler<CreateOrderCommand, OrderDto>
+{
+    private readonly IOrderRepository _orderRepository = orderRepository;
+    private readonly IIdGenerator _idGenerator = idGenerator;
+    private readonly ILogger<CreateOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<OrderDto> Handle(CreateOrderCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 构建订单
+        var order = new Order
+        {
+            Id = _idGenerator.NextId(),
+            OrderNo = request.OrderNo.Trim(),
+            StoreId = request.StoreId,
+            Channel = request.Channel,
+            DeliveryType = request.DeliveryType,
+            Status = request.Status,
+            PaymentStatus = request.PaymentStatus,
+            CustomerName = request.CustomerName?.Trim(),
+            CustomerPhone = request.CustomerPhone?.Trim(),
+            TableNo = request.TableNo?.Trim(),
+            QueueNumber = request.QueueNumber?.Trim(),
+            ReservationId = request.ReservationId,
+            ItemsAmount = request.ItemsAmount,
+            DiscountAmount = request.DiscountAmount,
+            PayableAmount = request.PayableAmount,
+            PaidAmount = request.PaidAmount,
+            PaidAt = request.PaidAt,
+            FinishedAt = request.FinishedAt,
+            CancelledAt = request.CancelledAt,
+            CancelReason = request.CancelReason?.Trim(),
+            Remark = request.Remark?.Trim()
+        };
+
+        // 2. 构建明细
+        var items = request.Items.Select(item => new OrderItem
+        {
+            OrderId = order.Id,
+            ProductId = item.ProductId,
+            ProductName = item.ProductName.Trim(),
+            SkuName = item.SkuName?.Trim(),
+            Unit = item.Unit?.Trim(),
+            Quantity = item.Quantity,
+            UnitPrice = item.UnitPrice,
+            DiscountAmount = item.DiscountAmount,
+            SubTotal = item.SubTotal,
+            AttributesJson = item.AttributesJson?.Trim()
+        }).ToList();
+
+        // 3. 补充金额字段
+        if (items.Count > 0)
+        {
+            var itemsAmount = items.Sum(x => x.SubTotal);
+            order.ItemsAmount = itemsAmount;
+            if (order.PayableAmount <= 0)
+            {
+                order.PayableAmount = itemsAmount - order.DiscountAmount;
+            }
+        }
+
+        // 4. 持久化
+        await _orderRepository.AddOrderAsync(order, cancellationToken);
+        if (items.Count > 0)
+        {
+            await _orderRepository.AddItemsAsync(items, cancellationToken);
+        }
+        await _orderRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("创建订单 {OrderNo} ({OrderId})", order.OrderNo, order.Id);
+
+        // 5. 返回 DTO
+        return MapToDto(order, items, [], []);
+    }
+
+    private static OrderDto MapToDto(
+        Order order,
+        IReadOnlyList<OrderItem> items,
+        IReadOnlyList<OrderStatusHistory> histories,
+        IReadOnlyList<RefundRequest> refunds) => new()
+        {
+            Id = order.Id,
+            TenantId = order.TenantId,
+            OrderNo = order.OrderNo,
+            StoreId = order.StoreId,
+            Channel = order.Channel,
+            DeliveryType = order.DeliveryType,
+            Status = order.Status,
+            PaymentStatus = order.PaymentStatus,
+            CustomerName = order.CustomerName,
+            CustomerPhone = order.CustomerPhone,
+            TableNo = order.TableNo,
+            QueueNumber = order.QueueNumber,
+            ReservationId = order.ReservationId,
+            ItemsAmount = order.ItemsAmount,
+            DiscountAmount = order.DiscountAmount,
+            PayableAmount = order.PayableAmount,
+            PaidAmount = order.PaidAmount,
+            PaidAt = order.PaidAt,
+            FinishedAt = order.FinishedAt,
+            CancelledAt = order.CancelledAt,
+            CancelReason = order.CancelReason,
+            Remark = order.Remark,
+            Items = items.Select(x => new OrderItemDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                ProductId = x.ProductId,
+                ProductName = x.ProductName,
+                SkuName = x.SkuName,
+                Unit = x.Unit,
+                Quantity = x.Quantity,
+                UnitPrice = x.UnitPrice,
+                DiscountAmount = x.DiscountAmount,
+                SubTotal = x.SubTotal,
+                AttributesJson = x.AttributesJson
+            }).ToList(),
+            StatusHistory = histories.Select(x => new OrderStatusHistoryDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                Status = x.Status,
+                OperatorId = x.OperatorId,
+                Notes = x.Notes,
+                OccurredAt = x.OccurredAt
+            }).ToList(),
+            Refunds = refunds.Select(x => new RefundRequestDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                RefundNo = x.RefundNo,
+                Amount = x.Amount,
+                Reason = x.Reason,
+                Status = x.Status,
+                RequestedAt = x.RequestedAt,
+                ProcessedAt = x.ProcessedAt,
+                ReviewNotes = x.ReviewNotes
+            }).ToList()
+        };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/DeleteOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/DeleteOrderCommandHandler.cs
new file mode 100644
index 0000000..d376e47
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/DeleteOrderCommandHandler.cs
@@ -0,0 +1,40 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Orders.Commands;
+using TakeoutSaaS.Domain.Orders.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Orders.Handlers;
+
+/// <summary>
+/// 删除订单命令处理器。
+/// </summary>
+public sealed class DeleteOrderCommandHandler(
+    IOrderRepository orderRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteOrderCommandHandler> logger)
+    : IRequestHandler<DeleteOrderCommand, bool>
+{
+    private readonly IOrderRepository _orderRepository = orderRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeleteOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteOrderCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 校验存在性
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _orderRepository.FindByIdAsync(request.OrderId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        // 2. 删除
+        await _orderRepository.DeleteOrderAsync(request.OrderId, tenantId, cancellationToken);
+        await _orderRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除订单 {OrderId}", request.OrderId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/GetOrderByIdQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/GetOrderByIdQueryHandler.cs
new file mode 100644
index 0000000..dbdd1c2
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/GetOrderByIdQueryHandler.cs
@@ -0,0 +1,102 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Application.App.Orders.Queries;
+using TakeoutSaaS.Domain.Orders.Entities;
+using TakeoutSaaS.Domain.Orders.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Orders.Handlers;
+
+/// <summary>
+/// 订单详情查询处理器。
+/// </summary>
+public sealed class GetOrderByIdQueryHandler(
+    IOrderRepository orderRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetOrderByIdQuery, OrderDto?>
+{
+    private readonly IOrderRepository _orderRepository = orderRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<OrderDto?> Handle(GetOrderByIdQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var order = await _orderRepository.FindByIdAsync(request.OrderId, tenantId, cancellationToken);
+        if (order == null)
+        {
+            return null;
+        }
+
+        var items = await _orderRepository.GetItemsAsync(order.Id, tenantId, cancellationToken);
+        var histories = await _orderRepository.GetStatusHistoryAsync(order.Id, tenantId, cancellationToken);
+        var refunds = await _orderRepository.GetRefundsAsync(order.Id, tenantId, cancellationToken);
+
+        return MapToDto(order, items, histories, refunds);
+    }
+
+    private static OrderDto MapToDto(
+        Order order,
+        IReadOnlyList<OrderItem> items,
+        IReadOnlyList<OrderStatusHistory> histories,
+        IReadOnlyList<RefundRequest> refunds) => new()
+        {
+            Id = order.Id,
+            TenantId = order.TenantId,
+            OrderNo = order.OrderNo,
+            StoreId = order.StoreId,
+            Channel = order.Channel,
+            DeliveryType = order.DeliveryType,
+            Status = order.Status,
+            PaymentStatus = order.PaymentStatus,
+            CustomerName = order.CustomerName,
+            CustomerPhone = order.CustomerPhone,
+            TableNo = order.TableNo,
+            QueueNumber = order.QueueNumber,
+            ReservationId = order.ReservationId,
+            ItemsAmount = order.ItemsAmount,
+            DiscountAmount = order.DiscountAmount,
+            PayableAmount = order.PayableAmount,
+            PaidAmount = order.PaidAmount,
+            PaidAt = order.PaidAt,
+            FinishedAt = order.FinishedAt,
+            CancelledAt = order.CancelledAt,
+            CancelReason = order.CancelReason,
+            Remark = order.Remark,
+            Items = items.Select(x => new OrderItemDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                ProductId = x.ProductId,
+                ProductName = x.ProductName,
+                SkuName = x.SkuName,
+                Unit = x.Unit,
+                Quantity = x.Quantity,
+                UnitPrice = x.UnitPrice,
+                DiscountAmount = x.DiscountAmount,
+                SubTotal = x.SubTotal,
+                AttributesJson = x.AttributesJson
+            }).ToList(),
+            StatusHistory = histories.Select(x => new OrderStatusHistoryDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                Status = x.Status,
+                OperatorId = x.OperatorId,
+                Notes = x.Notes,
+                OccurredAt = x.OccurredAt
+            }).ToList(),
+            Refunds = refunds.Select(x => new RefundRequestDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                RefundNo = x.RefundNo,
+                Amount = x.Amount,
+                Reason = x.Reason,
+                Status = x.Status,
+                RequestedAt = x.RequestedAt,
+                ProcessedAt = x.ProcessedAt,
+                ReviewNotes = x.ReviewNotes
+            }).ToList()
+        };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/SearchOrdersQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/SearchOrdersQueryHandler.cs
new file mode 100644
index 0000000..d1b054a
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/SearchOrdersQueryHandler.cs
@@ -0,0 +1,65 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Application.App.Orders.Queries;
+using TakeoutSaaS.Domain.Orders.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Orders.Handlers;
+
+/// <summary>
+/// 订单列表查询处理器。
+/// </summary>
+public sealed class SearchOrdersQueryHandler(
+    IOrderRepository orderRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchOrdersQuery, IReadOnlyList<OrderDto>>
+{
+    private readonly IOrderRepository _orderRepository = orderRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<OrderDto>> Handle(SearchOrdersQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var orders = await _orderRepository.SearchAsync(tenantId, request.Status, request.PaymentStatus, cancellationToken);
+
+        if (request.StoreId.HasValue)
+        {
+            orders = orders.Where(x => x.StoreId == request.StoreId.Value).ToList();
+        }
+
+        if (!string.IsNullOrWhiteSpace(request.OrderNo))
+        {
+            var orderNo = request.OrderNo.Trim();
+            orders = orders
+                .Where(x => x.OrderNo.Contains(orderNo, StringComparison.OrdinalIgnoreCase))
+                .ToList();
+        }
+
+        return orders.Select(order => new OrderDto
+        {
+            Id = order.Id,
+            TenantId = order.TenantId,
+            OrderNo = order.OrderNo,
+            StoreId = order.StoreId,
+            Channel = order.Channel,
+            DeliveryType = order.DeliveryType,
+            Status = order.Status,
+            PaymentStatus = order.PaymentStatus,
+            CustomerName = order.CustomerName,
+            CustomerPhone = order.CustomerPhone,
+            TableNo = order.TableNo,
+            QueueNumber = order.QueueNumber,
+            ReservationId = order.ReservationId,
+            ItemsAmount = order.ItemsAmount,
+            DiscountAmount = order.DiscountAmount,
+            PayableAmount = order.PayableAmount,
+            PaidAmount = order.PaidAmount,
+            PaidAt = order.PaidAt,
+            FinishedAt = order.FinishedAt,
+            CancelledAt = order.CancelledAt,
+            CancelReason = order.CancelReason,
+            Remark = order.Remark
+        }).ToList();
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/UpdateOrderCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/UpdateOrderCommandHandler.cs
new file mode 100644
index 0000000..3901fd9
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Handlers/UpdateOrderCommandHandler.cs
@@ -0,0 +1,134 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Orders.Commands;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Domain.Orders.Entities;
+using TakeoutSaaS.Domain.Orders.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Orders.Handlers;
+
+/// <summary>
+/// 更新订单命令处理器。
+/// </summary>
+public sealed class UpdateOrderCommandHandler(
+    IOrderRepository orderRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdateOrderCommandHandler> logger)
+    : IRequestHandler<UpdateOrderCommand, OrderDto?>
+{
+    private readonly IOrderRepository _orderRepository = orderRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdateOrderCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<OrderDto?> Handle(UpdateOrderCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 读取订单
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _orderRepository.FindByIdAsync(request.OrderId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        // 2. 更新字段
+        existing.OrderNo = request.OrderNo.Trim();
+        existing.StoreId = request.StoreId;
+        existing.Channel = request.Channel;
+        existing.DeliveryType = request.DeliveryType;
+        existing.Status = request.Status;
+        existing.PaymentStatus = request.PaymentStatus;
+        existing.CustomerName = request.CustomerName?.Trim();
+        existing.CustomerPhone = request.CustomerPhone?.Trim();
+        existing.TableNo = request.TableNo?.Trim();
+        existing.QueueNumber = request.QueueNumber?.Trim();
+        existing.ReservationId = request.ReservationId;
+        existing.ItemsAmount = request.ItemsAmount;
+        existing.DiscountAmount = request.DiscountAmount;
+        existing.PayableAmount = request.PayableAmount;
+        existing.PaidAmount = request.PaidAmount;
+        existing.PaidAt = request.PaidAt;
+        existing.FinishedAt = request.FinishedAt;
+        existing.CancelledAt = request.CancelledAt;
+        existing.CancelReason = request.CancelReason?.Trim();
+        existing.Remark = request.Remark?.Trim();
+
+        // 3. 持久化
+        await _orderRepository.UpdateOrderAsync(existing, cancellationToken);
+        await _orderRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新订单 {OrderNo} ({OrderId})", existing.OrderNo, existing.Id);
+
+        // 4. 读取关联数据并返回
+        var items = await _orderRepository.GetItemsAsync(existing.Id, tenantId, cancellationToken);
+        var histories = await _orderRepository.GetStatusHistoryAsync(existing.Id, tenantId, cancellationToken);
+        var refunds = await _orderRepository.GetRefundsAsync(existing.Id, tenantId, cancellationToken);
+
+        return MapToDto(existing, items, histories, refunds);
+    }
+
+    private static OrderDto MapToDto(
+        Order order,
+        IReadOnlyList<OrderItem> items,
+        IReadOnlyList<OrderStatusHistory> histories,
+        IReadOnlyList<RefundRequest> refunds) => new()
+        {
+            Id = order.Id,
+            TenantId = order.TenantId,
+            OrderNo = order.OrderNo,
+            StoreId = order.StoreId,
+            Channel = order.Channel,
+            DeliveryType = order.DeliveryType,
+            Status = order.Status,
+            PaymentStatus = order.PaymentStatus,
+            CustomerName = order.CustomerName,
+            CustomerPhone = order.CustomerPhone,
+            TableNo = order.TableNo,
+            QueueNumber = order.QueueNumber,
+            ReservationId = order.ReservationId,
+            ItemsAmount = order.ItemsAmount,
+            DiscountAmount = order.DiscountAmount,
+            PayableAmount = order.PayableAmount,
+            PaidAmount = order.PaidAmount,
+            PaidAt = order.PaidAt,
+            FinishedAt = order.FinishedAt,
+            CancelledAt = order.CancelledAt,
+            CancelReason = order.CancelReason,
+            Remark = order.Remark,
+            Items = items.Select(x => new OrderItemDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                ProductId = x.ProductId,
+                ProductName = x.ProductName,
+                SkuName = x.SkuName,
+                Unit = x.Unit,
+                Quantity = x.Quantity,
+                UnitPrice = x.UnitPrice,
+                DiscountAmount = x.DiscountAmount,
+                SubTotal = x.SubTotal,
+                AttributesJson = x.AttributesJson
+            }).ToList(),
+            StatusHistory = histories.Select(x => new OrderStatusHistoryDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                Status = x.Status,
+                OperatorId = x.OperatorId,
+                Notes = x.Notes,
+                OccurredAt = x.OccurredAt
+            }).ToList(),
+            Refunds = refunds.Select(x => new RefundRequestDto
+            {
+                Id = x.Id,
+                OrderId = x.OrderId,
+                RefundNo = x.RefundNo,
+                Amount = x.Amount,
+                Reason = x.Reason,
+                Status = x.Status,
+                RequestedAt = x.RequestedAt,
+                ProcessedAt = x.ProcessedAt,
+                ReviewNotes = x.ReviewNotes
+            }).ToList()
+        };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Queries/GetOrderByIdQuery.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Queries/GetOrderByIdQuery.cs
new file mode 100644
index 0000000..1446c27
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Queries/GetOrderByIdQuery.cs
@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+
+namespace TakeoutSaaS.Application.App.Orders.Queries;
+
+/// <summary>
+/// 获取订单详情查询。
+/// </summary>
+public sealed class GetOrderByIdQuery : IRequest<OrderDto?>
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Orders/Queries/SearchOrdersQuery.cs b/src/Application/TakeoutSaaS.Application/App/Orders/Queries/SearchOrdersQuery.cs
new file mode 100644
index 0000000..99fa7b3
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Orders/Queries/SearchOrdersQuery.cs
@@ -0,0 +1,32 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Orders.Dto;
+using TakeoutSaaS.Domain.Orders.Enums;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Orders.Queries;
+
+/// <summary>
+/// 订单列表查询。
+/// </summary>
+public sealed class SearchOrdersQuery : IRequest<IReadOnlyList<OrderDto>>
+{
+    /// <summary>
+    /// 门店 ID（可选）。
+    /// </summary>
+    public long? StoreId { get; init; }
+
+    /// <summary>
+    /// 订单状态。
+    /// </summary>
+    public OrderStatus? Status { get; init; }
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus? PaymentStatus { get; init; }
+
+    /// <summary>
+    /// 订单号（模糊或精确，由调用方控制）。
+    /// </summary>
+    public string? OrderNo { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs
new file mode 100644
index 0000000..ed3c66c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/CreatePaymentCommand.cs
@@ -0,0 +1,56 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Payments.Commands;
+
+/// <summary>
+/// 创建支付记录命令。
+/// </summary>
+public sealed class CreatePaymentCommand : IRequest<PaymentDto>
+{
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+
+    /// <summary>
+    /// 支付方式。
+    /// </summary>
+    public PaymentMethod Method { get; set; } = PaymentMethod.Unknown;
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus Status { get; set; } = PaymentStatus.Unpaid;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 平台交易号。
+    /// </summary>
+    public string? TradeNo { get; set; }
+
+    /// <summary>
+    /// 渠道单号。
+    /// </summary>
+    public string? ChannelTransactionId { get; set; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; set; }
+
+    /// <summary>
+    /// 原始回调。
+    /// </summary>
+    public string? Payload { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/DeletePaymentCommand.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/DeletePaymentCommand.cs
new file mode 100644
index 0000000..5c42b47
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/DeletePaymentCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Payments.Commands;
+
+/// <summary>
+/// 删除支付记录命令。
+/// </summary>
+public sealed class DeletePaymentCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 支付记录 ID。
+    /// </summary>
+    public long PaymentId { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs
new file mode 100644
index 0000000..8d8263f
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Commands/UpdatePaymentCommand.cs
@@ -0,0 +1,61 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Payments.Commands;
+
+/// <summary>
+/// 更新支付记录命令。
+/// </summary>
+public sealed class UpdatePaymentCommand : IRequest<PaymentDto?>
+{
+    /// <summary>
+    /// 支付记录 ID。
+    /// </summary>
+    public long PaymentId { get; set; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    public long OrderId { get; set; }
+
+    /// <summary>
+    /// 支付方式。
+    /// </summary>
+    public PaymentMethod Method { get; set; } = PaymentMethod.Unknown;
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus Status { get; set; } = PaymentStatus.Unpaid;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 平台交易号。
+    /// </summary>
+    public string? TradeNo { get; set; }
+
+    /// <summary>
+    /// 渠道单号。
+    /// </summary>
+    public string? ChannelTransactionId { get; set; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; set; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; set; }
+
+    /// <summary>
+    /// 原始回调。
+    /// </summary>
+    public string? Payload { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs
new file mode 100644
index 0000000..807d0f1
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentDto.cs
@@ -0,0 +1,74 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Payments.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Payments.Dto;
+
+/// <summary>
+/// 支付记录 DTO。
+/// </summary>
+public sealed class PaymentDto
+{
+    /// <summary>
+    /// 支付记录 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 租户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long TenantId { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 支付方式。
+    /// </summary>
+    public PaymentMethod Method { get; init; }
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus Status { get; init; }
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; init; }
+
+    /// <summary>
+    /// 平台交易号。
+    /// </summary>
+    public string? TradeNo { get; init; }
+
+    /// <summary>
+    /// 渠道单号。
+    /// </summary>
+    public string? ChannelTransactionId { get; init; }
+
+    /// <summary>
+    /// 支付时间。
+    /// </summary>
+    public DateTime? PaidAt { get; init; }
+
+    /// <summary>
+    /// 备注。
+    /// </summary>
+    public string? Remark { get; init; }
+
+    /// <summary>
+    /// 原始回调。
+    /// </summary>
+    public string? Payload { get; init; }
+
+    /// <summary>
+    /// 退款记录。
+    /// </summary>
+    public IReadOnlyList<PaymentRefundDto> Refunds { get; init; } = Array.Empty<PaymentRefundDto>();
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentRefundDto.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentRefundDto.cs
new file mode 100644
index 0000000..5c9cfa8
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Dto/PaymentRefundDto.cs
@@ -0,0 +1,49 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Payments.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Payments.Dto;
+
+/// <summary>
+/// 退款记录 DTO。
+/// </summary>
+public sealed class PaymentRefundDto
+{
+    /// <summary>
+    /// 退款记录 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 支付记录 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long PaymentRecordId { get; init; }
+
+    /// <summary>
+    /// 订单 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long OrderId { get; init; }
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; init; }
+
+    /// <summary>
+    /// 渠道退款号。
+    /// </summary>
+    public string? ChannelRefundId { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public PaymentRefundStatus Status { get; init; }
+
+    /// <summary>
+    /// 原始回调。
+    /// </summary>
+    public string? Payload { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/CreatePaymentCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/CreatePaymentCommandHandler.cs
new file mode 100644
index 0000000..463d903
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/CreatePaymentCommandHandler.cs
@@ -0,0 +1,66 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Payments.Commands;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Domain.Payments.Entities;
+using TakeoutSaaS.Domain.Payments.Repositories;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 创建支付记录命令处理器。
+/// </summary>
+public sealed class CreatePaymentCommandHandler(IPaymentRepository paymentRepository, ILogger<CreatePaymentCommandHandler> logger)
+    : IRequestHandler<CreatePaymentCommand, PaymentDto>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ILogger<CreatePaymentCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<PaymentDto> Handle(CreatePaymentCommand request, CancellationToken cancellationToken)
+    {
+        var payment = new PaymentRecord
+        {
+            OrderId = request.OrderId,
+            Method = request.Method,
+            Status = request.Status,
+            Amount = request.Amount,
+            TradeNo = request.TradeNo?.Trim(),
+            ChannelTransactionId = request.ChannelTransactionId?.Trim(),
+            PaidAt = request.PaidAt,
+            Remark = request.Remark?.Trim(),
+            Payload = request.Payload
+        };
+
+        await _paymentRepository.AddPaymentAsync(payment, cancellationToken);
+        await _paymentRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("创建支付记录 {PaymentId} 对应订单 {OrderId}", payment.Id, payment.OrderId);
+
+        return MapToDto(payment, []);
+    }
+
+    private static PaymentDto MapToDto(PaymentRecord payment, IReadOnlyList<PaymentRefundRecord> refunds) => new()
+    {
+        Id = payment.Id,
+        TenantId = payment.TenantId,
+        OrderId = payment.OrderId,
+        Method = payment.Method,
+        Status = payment.Status,
+        Amount = payment.Amount,
+        TradeNo = payment.TradeNo,
+        ChannelTransactionId = payment.ChannelTransactionId,
+        PaidAt = payment.PaidAt,
+        Remark = payment.Remark,
+        Payload = payment.Payload,
+        Refunds = refunds.Select(x => new PaymentRefundDto
+        {
+            Id = x.Id,
+            PaymentRecordId = x.PaymentRecordId,
+            OrderId = x.OrderId,
+            Amount = x.Amount,
+            ChannelRefundId = x.ChannelRefundId,
+            Status = x.Status,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/DeletePaymentCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/DeletePaymentCommandHandler.cs
new file mode 100644
index 0000000..07b2ca9
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/DeletePaymentCommandHandler.cs
@@ -0,0 +1,38 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Payments.Commands;
+using TakeoutSaaS.Domain.Payments.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 删除支付记录命令处理器。
+/// </summary>
+public sealed class DeletePaymentCommandHandler(
+    IPaymentRepository paymentRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeletePaymentCommandHandler> logger)
+    : IRequestHandler<DeletePaymentCommand, bool>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeletePaymentCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeletePaymentCommand request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _paymentRepository.FindByIdAsync(request.PaymentId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        await _paymentRepository.DeletePaymentAsync(request.PaymentId, tenantId, cancellationToken);
+        await _paymentRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除支付记录 {PaymentId}", request.PaymentId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/GetPaymentByIdQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/GetPaymentByIdQueryHandler.cs
new file mode 100644
index 0000000..225697c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/GetPaymentByIdQueryHandler.cs
@@ -0,0 +1,59 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Application.App.Payments.Queries;
+using TakeoutSaaS.Domain.Payments.Entities;
+using TakeoutSaaS.Domain.Payments.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 支付记录详情查询处理器。
+/// </summary>
+public sealed class GetPaymentByIdQueryHandler(
+    IPaymentRepository paymentRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetPaymentByIdQuery, PaymentDto?>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<PaymentDto?> Handle(GetPaymentByIdQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var payment = await _paymentRepository.FindByIdAsync(request.PaymentId, tenantId, cancellationToken);
+        if (payment == null)
+        {
+            return null;
+        }
+
+        var refunds = await _paymentRepository.GetRefundsAsync(payment.Id, tenantId, cancellationToken);
+        return MapToDto(payment, refunds);
+    }
+
+    private static PaymentDto MapToDto(PaymentRecord payment, IReadOnlyList<PaymentRefundRecord> refunds) => new()
+    {
+        Id = payment.Id,
+        TenantId = payment.TenantId,
+        OrderId = payment.OrderId,
+        Method = payment.Method,
+        Status = payment.Status,
+        Amount = payment.Amount,
+        TradeNo = payment.TradeNo,
+        ChannelTransactionId = payment.ChannelTransactionId,
+        PaidAt = payment.PaidAt,
+        Remark = payment.Remark,
+        Payload = payment.Payload,
+        Refunds = refunds.Select(x => new PaymentRefundDto
+        {
+            Id = x.Id,
+            PaymentRecordId = x.PaymentRecordId,
+            OrderId = x.OrderId,
+            Amount = x.Amount,
+            ChannelRefundId = x.ChannelRefundId,
+            Status = x.Status,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/SearchPaymentsQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/SearchPaymentsQueryHandler.cs
new file mode 100644
index 0000000..45ff7cb
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/SearchPaymentsQueryHandler.cs
@@ -0,0 +1,46 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Application.App.Payments.Queries;
+using TakeoutSaaS.Domain.Payments.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 支付记录列表查询处理器。
+/// </summary>
+public sealed class SearchPaymentsQueryHandler(
+    IPaymentRepository paymentRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchPaymentsQuery, IReadOnlyList<PaymentDto>>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<PaymentDto>> Handle(SearchPaymentsQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var payments = await _paymentRepository.SearchAsync(tenantId, request.Status, cancellationToken);
+
+        if (request.OrderId.HasValue)
+        {
+            payments = payments.Where(x => x.OrderId == request.OrderId.Value).ToList();
+        }
+
+        return payments.Select(payment => new PaymentDto
+        {
+            Id = payment.Id,
+            TenantId = payment.TenantId,
+            OrderId = payment.OrderId,
+            Method = payment.Method,
+            Status = payment.Status,
+            Amount = payment.Amount,
+            TradeNo = payment.TradeNo,
+            ChannelTransactionId = payment.ChannelTransactionId,
+            PaidAt = payment.PaidAt,
+            Remark = payment.Remark,
+            Payload = payment.Payload
+        }).ToList();
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/UpdatePaymentCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/UpdatePaymentCommandHandler.cs
new file mode 100644
index 0000000..f55a37d
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Handlers/UpdatePaymentCommandHandler.cs
@@ -0,0 +1,76 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Payments.Commands;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Domain.Payments.Entities;
+using TakeoutSaaS.Domain.Payments.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 更新支付记录命令处理器。
+/// </summary>
+public sealed class UpdatePaymentCommandHandler(
+    IPaymentRepository paymentRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdatePaymentCommandHandler> logger)
+    : IRequestHandler<UpdatePaymentCommand, PaymentDto?>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdatePaymentCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<PaymentDto?> Handle(UpdatePaymentCommand request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _paymentRepository.FindByIdAsync(request.PaymentId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        existing.OrderId = request.OrderId;
+        existing.Method = request.Method;
+        existing.Status = request.Status;
+        existing.Amount = request.Amount;
+        existing.TradeNo = request.TradeNo?.Trim();
+        existing.ChannelTransactionId = request.ChannelTransactionId?.Trim();
+        existing.PaidAt = request.PaidAt;
+        existing.Remark = request.Remark?.Trim();
+        existing.Payload = request.Payload;
+
+        await _paymentRepository.UpdatePaymentAsync(existing, cancellationToken);
+        await _paymentRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新支付记录 {PaymentId}", existing.Id);
+
+        var refunds = await _paymentRepository.GetRefundsAsync(existing.Id, tenantId, cancellationToken);
+        return MapToDto(existing, refunds);
+    }
+
+    private static PaymentDto MapToDto(PaymentRecord payment, IReadOnlyList<PaymentRefundRecord> refunds) => new()
+    {
+        Id = payment.Id,
+        TenantId = payment.TenantId,
+        OrderId = payment.OrderId,
+        Method = payment.Method,
+        Status = payment.Status,
+        Amount = payment.Amount,
+        TradeNo = payment.TradeNo,
+        ChannelTransactionId = payment.ChannelTransactionId,
+        PaidAt = payment.PaidAt,
+        Remark = payment.Remark,
+        Payload = payment.Payload,
+        Refunds = refunds.Select(x => new PaymentRefundDto
+        {
+            Id = x.Id,
+            PaymentRecordId = x.PaymentRecordId,
+            OrderId = x.OrderId,
+            Amount = x.Amount,
+            ChannelRefundId = x.ChannelRefundId,
+            Status = x.Status,
+            Payload = x.Payload
+        }).ToList()
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Queries/GetPaymentByIdQuery.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Queries/GetPaymentByIdQuery.cs
new file mode 100644
index 0000000..3ca6c8c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Queries/GetPaymentByIdQuery.cs
@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+
+namespace TakeoutSaaS.Application.App.Payments.Queries;
+
+/// <summary>
+/// 获取支付记录详情。
+/// </summary>
+public sealed class GetPaymentByIdQuery : IRequest<PaymentDto?>
+{
+    /// <summary>
+    /// 支付记录 ID。
+    /// </summary>
+    public long PaymentId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Payments/Queries/SearchPaymentsQuery.cs b/src/Application/TakeoutSaaS.Application/App/Payments/Queries/SearchPaymentsQuery.cs
new file mode 100644
index 0000000..91b5bad
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Payments/Queries/SearchPaymentsQuery.cs
@@ -0,0 +1,21 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Domain.Payments.Enums;
+
+namespace TakeoutSaaS.Application.App.Payments.Queries;
+
+/// <summary>
+/// 支付记录列表查询。
+/// </summary>
+public sealed class SearchPaymentsQuery : IRequest<IReadOnlyList<PaymentDto>>
+{
+    /// <summary>
+    /// 订单 ID（可选）。
+    /// </summary>
+    public long? OrderId { get; init; }
+
+    /// <summary>
+    /// 支付状态。
+    /// </summary>
+    public PaymentStatus? Status { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Commands/CreateProductCommand.cs b/src/Application/TakeoutSaaS.Application/App/Products/Commands/CreateProductCommand.cs
new file mode 100644
index 0000000..50d08c0
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Commands/CreateProductCommand.cs
@@ -0,0 +1,101 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Domain.Products.Enums;
+
+namespace TakeoutSaaS.Application.App.Products.Commands;
+
+/// <summary>
+/// 创建商品命令。
+/// </summary>
+public sealed class CreateProductCommand : IRequest<ProductDto>
+{
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+
+    /// <summary>
+    /// 分类 ID。
+    /// </summary>
+    public long CategoryId { get; set; }
+
+    /// <summary>
+    /// 商品编码。
+    /// </summary>
+    public string SpuCode { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 名称。
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 副标题。
+    /// </summary>
+    public string? Subtitle { get; set; }
+
+    /// <summary>
+    /// 单位。
+    /// </summary>
+    public string? Unit { get; set; }
+
+    /// <summary>
+    /// 现价。
+    /// </summary>
+    public decimal Price { get; set; }
+
+    /// <summary>
+    /// 原价。
+    /// </summary>
+    public decimal? OriginalPrice { get; set; }
+
+    /// <summary>
+    /// 库存数量。
+    /// </summary>
+    public int? StockQuantity { get; set; }
+
+    /// <summary>
+    /// 每单限购。
+    /// </summary>
+    public int? MaxQuantityPerOrder { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public ProductStatus Status { get; set; } = ProductStatus.Draft;
+
+    /// <summary>
+    /// 主图。
+    /// </summary>
+    public string? CoverImage { get; set; }
+
+    /// <summary>
+    /// 图集。
+    /// </summary>
+    public string? GalleryImages { get; set; }
+
+    /// <summary>
+    /// 描述。
+    /// </summary>
+    public string? Description { get; set; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool EnableDineIn { get; set; } = true;
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool EnablePickup { get; set; } = true;
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool EnableDelivery { get; set; } = true;
+
+    /// <summary>
+    /// 是否推荐。
+    /// </summary>
+    public bool IsFeatured { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Commands/DeleteProductCommand.cs b/src/Application/TakeoutSaaS.Application/App/Products/Commands/DeleteProductCommand.cs
new file mode 100644
index 0000000..9a17c86
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Commands/DeleteProductCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Products.Commands;
+
+/// <summary>
+/// 删除商品命令。
+/// </summary>
+public sealed class DeleteProductCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    public long ProductId { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Commands/UpdateProductCommand.cs b/src/Application/TakeoutSaaS.Application/App/Products/Commands/UpdateProductCommand.cs
new file mode 100644
index 0000000..ba3de2b
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Commands/UpdateProductCommand.cs
@@ -0,0 +1,106 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Domain.Products.Enums;
+
+namespace TakeoutSaaS.Application.App.Products.Commands;
+
+/// <summary>
+/// 更新商品命令。
+/// </summary>
+public sealed class UpdateProductCommand : IRequest<ProductDto?>
+{
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    public long ProductId { get; set; }
+
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+
+    /// <summary>
+    /// 分类 ID。
+    /// </summary>
+    public long CategoryId { get; set; }
+
+    /// <summary>
+    /// 商品编码。
+    /// </summary>
+    public string SpuCode { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 名称。
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 副标题。
+    /// </summary>
+    public string? Subtitle { get; set; }
+
+    /// <summary>
+    /// 单位。
+    /// </summary>
+    public string? Unit { get; set; }
+
+    /// <summary>
+    /// 现价。
+    /// </summary>
+    public decimal Price { get; set; }
+
+    /// <summary>
+    /// 原价。
+    /// </summary>
+    public decimal? OriginalPrice { get; set; }
+
+    /// <summary>
+    /// 库存数量。
+    /// </summary>
+    public int? StockQuantity { get; set; }
+
+    /// <summary>
+    /// 每单限购。
+    /// </summary>
+    public int? MaxQuantityPerOrder { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public ProductStatus Status { get; set; } = ProductStatus.Draft;
+
+    /// <summary>
+    /// 主图。
+    /// </summary>
+    public string? CoverImage { get; set; }
+
+    /// <summary>
+    /// 图集。
+    /// </summary>
+    public string? GalleryImages { get; set; }
+
+    /// <summary>
+    /// 描述。
+    /// </summary>
+    public string? Description { get; set; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool EnableDineIn { get; set; } = true;
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool EnablePickup { get; set; } = true;
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool EnableDelivery { get; set; } = true;
+
+    /// <summary>
+    /// 是否推荐。
+    /// </summary>
+    public bool IsFeatured { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Dto/ProductDto.cs b/src/Application/TakeoutSaaS.Application/App/Products/Dto/ProductDto.cs
new file mode 100644
index 0000000..7661594
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Dto/ProductDto.cs
@@ -0,0 +1,115 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Products.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Products.Dto;
+
+/// <summary>
+/// 商品 DTO。
+/// </summary>
+public sealed class ProductDto
+{
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 租户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long TenantId { get; init; }
+
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long StoreId { get; init; }
+
+    /// <summary>
+    /// 分类 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long CategoryId { get; init; }
+
+    /// <summary>
+    /// SPU 编码。
+    /// </summary>
+    public string SpuCode { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 名称。
+    /// </summary>
+    public string Name { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 副标题。
+    /// </summary>
+    public string? Subtitle { get; init; }
+
+    /// <summary>
+    /// 单位。
+    /// </summary>
+    public string? Unit { get; init; }
+
+    /// <summary>
+    /// 现价。
+    /// </summary>
+    public decimal Price { get; init; }
+
+    /// <summary>
+    /// 原价。
+    /// </summary>
+    public decimal? OriginalPrice { get; init; }
+
+    /// <summary>
+    /// 库存数量。
+    /// </summary>
+    public int? StockQuantity { get; init; }
+
+    /// <summary>
+    /// 每单限购。
+    /// </summary>
+    public int? MaxQuantityPerOrder { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public ProductStatus Status { get; init; }
+
+    /// <summary>
+    /// 主图。
+    /// </summary>
+    public string? CoverImage { get; init; }
+
+    /// <summary>
+    /// 图集。
+    /// </summary>
+    public string? GalleryImages { get; init; }
+
+    /// <summary>
+    /// 描述。
+    /// </summary>
+    public string? Description { get; init; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool EnableDineIn { get; init; }
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool EnablePickup { get; init; }
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool EnableDelivery { get; init; }
+
+    /// <summary>
+    /// 是否推荐。
+    /// </summary>
+    public bool IsFeatured { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Handlers/CreateProductCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/CreateProductCommandHandler.cs
new file mode 100644
index 0000000..46201fa
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/CreateProductCommandHandler.cs
@@ -0,0 +1,77 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Products.Commands;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Domain.Products.Entities;
+using TakeoutSaaS.Domain.Products.Repositories;
+
+namespace TakeoutSaaS.Application.App.Products.Handlers;
+
+/// <summary>
+/// 创建商品命令处理器。
+/// </summary>
+public sealed class CreateProductCommandHandler(IProductRepository productRepository, ILogger<CreateProductCommandHandler> logger)
+    : IRequestHandler<CreateProductCommand, ProductDto>
+{
+    private readonly IProductRepository _productRepository = productRepository;
+    private readonly ILogger<CreateProductCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<ProductDto> Handle(CreateProductCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 构建实体
+        var product = new Product
+        {
+            StoreId = request.StoreId,
+            CategoryId = request.CategoryId,
+            SpuCode = request.SpuCode.Trim(),
+            Name = request.Name.Trim(),
+            Subtitle = request.Subtitle?.Trim(),
+            Unit = request.Unit?.Trim(),
+            Price = request.Price,
+            OriginalPrice = request.OriginalPrice,
+            StockQuantity = request.StockQuantity,
+            MaxQuantityPerOrder = request.MaxQuantityPerOrder,
+            Status = request.Status,
+            CoverImage = request.CoverImage?.Trim(),
+            GalleryImages = request.GalleryImages?.Trim(),
+            Description = request.Description?.Trim(),
+            EnableDineIn = request.EnableDineIn,
+            EnablePickup = request.EnablePickup,
+            EnableDelivery = request.EnableDelivery,
+            IsFeatured = request.IsFeatured
+        };
+
+        // 2. 持久化
+        await _productRepository.AddProductAsync(product, cancellationToken);
+        await _productRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("创建商品 {ProductId} - {ProductName}", product.Id, product.Name);
+
+        // 3. 返回 DTO
+        return MapToDto(product);
+    }
+
+    private static ProductDto MapToDto(Product product) => new()
+    {
+        Id = product.Id,
+        TenantId = product.TenantId,
+        StoreId = product.StoreId,
+        CategoryId = product.CategoryId,
+        SpuCode = product.SpuCode,
+        Name = product.Name,
+        Subtitle = product.Subtitle,
+        Unit = product.Unit,
+        Price = product.Price,
+        OriginalPrice = product.OriginalPrice,
+        StockQuantity = product.StockQuantity,
+        MaxQuantityPerOrder = product.MaxQuantityPerOrder,
+        Status = product.Status,
+        CoverImage = product.CoverImage,
+        GalleryImages = product.GalleryImages,
+        Description = product.Description,
+        EnableDineIn = product.EnableDineIn,
+        EnablePickup = product.EnablePickup,
+        EnableDelivery = product.EnableDelivery,
+        IsFeatured = product.IsFeatured
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Handlers/DeleteProductCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/DeleteProductCommandHandler.cs
new file mode 100644
index 0000000..f06cfa1
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/DeleteProductCommandHandler.cs
@@ -0,0 +1,40 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Products.Commands;
+using TakeoutSaaS.Domain.Products.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Products.Handlers;
+
+/// <summary>
+/// 删除商品命令处理器。
+/// </summary>
+public sealed class DeleteProductCommandHandler(
+    IProductRepository productRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteProductCommandHandler> logger)
+    : IRequestHandler<DeleteProductCommand, bool>
+{
+    private readonly IProductRepository _productRepository = productRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeleteProductCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteProductCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 校验存在性
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _productRepository.FindByIdAsync(request.ProductId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        // 2. 删除
+        await _productRepository.DeleteProductAsync(request.ProductId, tenantId, cancellationToken);
+        await _productRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除商品 {ProductId}", request.ProductId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Handlers/GetProductByIdQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/GetProductByIdQueryHandler.cs
new file mode 100644
index 0000000..018c325
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/GetProductByIdQueryHandler.cs
@@ -0,0 +1,52 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Application.App.Products.Queries;
+using TakeoutSaaS.Domain.Products.Entities;
+using TakeoutSaaS.Domain.Products.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Products.Handlers;
+
+/// <summary>
+/// 商品详情查询处理器。
+/// </summary>
+public sealed class GetProductByIdQueryHandler(
+    IProductRepository productRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetProductByIdQuery, ProductDto?>
+{
+    private readonly IProductRepository _productRepository = productRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<ProductDto?> Handle(GetProductByIdQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var product = await _productRepository.FindByIdAsync(request.ProductId, tenantId, cancellationToken);
+        return product == null ? null : MapToDto(product);
+    }
+
+    private static ProductDto MapToDto(Product product) => new()
+    {
+        Id = product.Id,
+        TenantId = product.TenantId,
+        StoreId = product.StoreId,
+        CategoryId = product.CategoryId,
+        SpuCode = product.SpuCode,
+        Name = product.Name,
+        Subtitle = product.Subtitle,
+        Unit = product.Unit,
+        Price = product.Price,
+        OriginalPrice = product.OriginalPrice,
+        StockQuantity = product.StockQuantity,
+        MaxQuantityPerOrder = product.MaxQuantityPerOrder,
+        Status = product.Status,
+        CoverImage = product.CoverImage,
+        GalleryImages = product.GalleryImages,
+        Description = product.Description,
+        EnableDineIn = product.EnableDineIn,
+        EnablePickup = product.EnablePickup,
+        EnableDelivery = product.EnableDelivery,
+        IsFeatured = product.IsFeatured
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Handlers/SearchProductsQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/SearchProductsQueryHandler.cs
new file mode 100644
index 0000000..d24784e
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/SearchProductsQueryHandler.cs
@@ -0,0 +1,57 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Application.App.Products.Queries;
+using TakeoutSaaS.Domain.Products.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Products.Handlers;
+
+/// <summary>
+/// 商品列表查询处理器。
+/// </summary>
+public sealed class SearchProductsQueryHandler(
+    IProductRepository productRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchProductsQuery, IReadOnlyList<ProductDto>>
+{
+    private readonly IProductRepository _productRepository = productRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<ProductDto>> Handle(SearchProductsQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var products = await _productRepository.SearchAsync(tenantId, request.CategoryId, request.Status, cancellationToken);
+
+        if (request.StoreId.HasValue)
+        {
+            products = products.Where(x => x.StoreId == request.StoreId.Value).ToList();
+        }
+
+        return products.Select(MapToDto).ToList();
+    }
+
+    private static ProductDto MapToDto(Domain.Products.Entities.Product product) => new()
+    {
+        Id = product.Id,
+        TenantId = product.TenantId,
+        StoreId = product.StoreId,
+        CategoryId = product.CategoryId,
+        SpuCode = product.SpuCode,
+        Name = product.Name,
+        Subtitle = product.Subtitle,
+        Unit = product.Unit,
+        Price = product.Price,
+        OriginalPrice = product.OriginalPrice,
+        StockQuantity = product.StockQuantity,
+        MaxQuantityPerOrder = product.MaxQuantityPerOrder,
+        Status = product.Status,
+        CoverImage = product.CoverImage,
+        GalleryImages = product.GalleryImages,
+        Description = product.Description,
+        EnableDineIn = product.EnableDineIn,
+        EnablePickup = product.EnablePickup,
+        EnableDelivery = product.EnableDelivery,
+        IsFeatured = product.IsFeatured
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Handlers/UpdateProductCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/UpdateProductCommandHandler.cs
new file mode 100644
index 0000000..df33a23
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Handlers/UpdateProductCommandHandler.cs
@@ -0,0 +1,87 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Products.Commands;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Domain.Products.Entities;
+using TakeoutSaaS.Domain.Products.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Products.Handlers;
+
+/// <summary>
+/// 更新商品命令处理器。
+/// </summary>
+public sealed class UpdateProductCommandHandler(
+    IProductRepository productRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdateProductCommandHandler> logger)
+    : IRequestHandler<UpdateProductCommand, ProductDto?>
+{
+    private readonly IProductRepository _productRepository = productRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdateProductCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<ProductDto?> Handle(UpdateProductCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 读取商品
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _productRepository.FindByIdAsync(request.ProductId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        // 2. 更新字段
+        existing.StoreId = request.StoreId;
+        existing.CategoryId = request.CategoryId;
+        existing.SpuCode = request.SpuCode.Trim();
+        existing.Name = request.Name.Trim();
+        existing.Subtitle = request.Subtitle?.Trim();
+        existing.Unit = request.Unit?.Trim();
+        existing.Price = request.Price;
+        existing.OriginalPrice = request.OriginalPrice;
+        existing.StockQuantity = request.StockQuantity;
+        existing.MaxQuantityPerOrder = request.MaxQuantityPerOrder;
+        existing.Status = request.Status;
+        existing.CoverImage = request.CoverImage?.Trim();
+        existing.GalleryImages = request.GalleryImages?.Trim();
+        existing.Description = request.Description?.Trim();
+        existing.EnableDineIn = request.EnableDineIn;
+        existing.EnablePickup = request.EnablePickup;
+        existing.EnableDelivery = request.EnableDelivery;
+        existing.IsFeatured = request.IsFeatured;
+
+        // 3. 持久化
+        await _productRepository.UpdateProductAsync(existing, cancellationToken);
+        await _productRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新商品 {ProductId} - {ProductName}", existing.Id, existing.Name);
+
+        // 4. 返回 DTO
+        return MapToDto(existing);
+    }
+
+    private static ProductDto MapToDto(Product product) => new()
+    {
+        Id = product.Id,
+        TenantId = product.TenantId,
+        StoreId = product.StoreId,
+        CategoryId = product.CategoryId,
+        SpuCode = product.SpuCode,
+        Name = product.Name,
+        Subtitle = product.Subtitle,
+        Unit = product.Unit,
+        Price = product.Price,
+        OriginalPrice = product.OriginalPrice,
+        StockQuantity = product.StockQuantity,
+        MaxQuantityPerOrder = product.MaxQuantityPerOrder,
+        Status = product.Status,
+        CoverImage = product.CoverImage,
+        GalleryImages = product.GalleryImages,
+        Description = product.Description,
+        EnableDineIn = product.EnableDineIn,
+        EnablePickup = product.EnablePickup,
+        EnableDelivery = product.EnableDelivery,
+        IsFeatured = product.IsFeatured
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Queries/GetProductByIdQuery.cs b/src/Application/TakeoutSaaS.Application/App/Products/Queries/GetProductByIdQuery.cs
new file mode 100644
index 0000000..08830cb
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Queries/GetProductByIdQuery.cs
@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+
+namespace TakeoutSaaS.Application.App.Products.Queries;
+
+/// <summary>
+/// 获取商品详情查询。
+/// </summary>
+public sealed class GetProductByIdQuery : IRequest<ProductDto?>
+{
+    /// <summary>
+    /// 商品 ID。
+    /// </summary>
+    public long ProductId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Products/Queries/SearchProductsQuery.cs b/src/Application/TakeoutSaaS.Application/App/Products/Queries/SearchProductsQuery.cs
new file mode 100644
index 0000000..07541c8
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Products/Queries/SearchProductsQuery.cs
@@ -0,0 +1,26 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Domain.Products.Enums;
+
+namespace TakeoutSaaS.Application.App.Products.Queries;
+
+/// <summary>
+/// 商品列表查询。
+/// </summary>
+public sealed class SearchProductsQuery : IRequest<IReadOnlyList<ProductDto>>
+{
+    /// <summary>
+    /// 门店 ID（可选）。
+    /// </summary>
+    public long? StoreId { get; init; }
+
+    /// <summary>
+    /// 分类 ID（可选）。
+    /// </summary>
+    public long? CategoryId { get; init; }
+
+    /// <summary>
+    /// 状态过滤。
+    /// </summary>
+    public ProductStatus? Status { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Commands/CreateStoreCommand.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/CreateStoreCommand.cs
new file mode 100644
index 0000000..21eb9c5
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/CreateStoreCommand.cs
@@ -0,0 +1,101 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Domain.Stores.Enums;
+
+namespace TakeoutSaaS.Application.App.Stores.Commands;
+
+/// <summary>
+/// 创建门店命令。
+/// </summary>
+public sealed class CreateStoreCommand : IRequest<StoreDto>
+{
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    public long MerchantId { get; set; }
+
+    /// <summary>
+    /// 门店编码。
+    /// </summary>
+    public string Code { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 门店名称。
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 电话。
+    /// </summary>
+    public string? Phone { get; set; }
+
+    /// <summary>
+    /// 负责人。
+    /// </summary>
+    public string? ManagerName { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public StoreStatus Status { get; set; } = StoreStatus.Closed;
+
+    /// <summary>
+    /// 省份。
+    /// </summary>
+    public string? Province { get; set; }
+
+    /// <summary>
+    /// 城市。
+    /// </summary>
+    public string? City { get; set; }
+
+    /// <summary>
+    /// 区县。
+    /// </summary>
+    public string? District { get; set; }
+
+    /// <summary>
+    /// 详细地址。
+    /// </summary>
+    public string? Address { get; set; }
+
+    /// <summary>
+    /// 经度。
+    /// </summary>
+    public double? Longitude { get; set; }
+
+    /// <summary>
+    /// 纬度。
+    /// </summary>
+    public double? Latitude { get; set; }
+
+    /// <summary>
+    /// 公告。
+    /// </summary>
+    public string? Announcement { get; set; }
+
+    /// <summary>
+    /// 标签。
+    /// </summary>
+    public string? Tags { get; set; }
+
+    /// <summary>
+    /// 配送半径。
+    /// </summary>
+    public decimal DeliveryRadiusKm { get; set; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool SupportsDineIn { get; set; } = true;
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool SupportsPickup { get; set; } = true;
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool SupportsDelivery { get; set; } = true;
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Commands/DeleteStoreCommand.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/DeleteStoreCommand.cs
new file mode 100644
index 0000000..9a66dbb
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/DeleteStoreCommand.cs
@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace TakeoutSaaS.Application.App.Stores.Commands;
+
+/// <summary>
+/// 删除门店命令。
+/// </summary>
+public sealed class DeleteStoreCommand : IRequest<bool>
+{
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Commands/UpdateStoreCommand.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/UpdateStoreCommand.cs
new file mode 100644
index 0000000..0cecf53
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Commands/UpdateStoreCommand.cs
@@ -0,0 +1,106 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Domain.Stores.Enums;
+
+namespace TakeoutSaaS.Application.App.Stores.Commands;
+
+/// <summary>
+/// 更新门店命令。
+/// </summary>
+public sealed class UpdateStoreCommand : IRequest<StoreDto?>
+{
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; set; }
+
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    public long MerchantId { get; set; }
+
+    /// <summary>
+    /// 门店编码。
+    /// </summary>
+    public string Code { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 门店名称。
+    /// </summary>
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 电话。
+    /// </summary>
+    public string? Phone { get; set; }
+
+    /// <summary>
+    /// 负责人。
+    /// </summary>
+    public string? ManagerName { get; set; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public StoreStatus Status { get; set; } = StoreStatus.Closed;
+
+    /// <summary>
+    /// 省份。
+    /// </summary>
+    public string? Province { get; set; }
+
+    /// <summary>
+    /// 城市。
+    /// </summary>
+    public string? City { get; set; }
+
+    /// <summary>
+    /// 区县。
+    /// </summary>
+    public string? District { get; set; }
+
+    /// <summary>
+    /// 详细地址。
+    /// </summary>
+    public string? Address { get; set; }
+
+    /// <summary>
+    /// 经度。
+    /// </summary>
+    public double? Longitude { get; set; }
+
+    /// <summary>
+    /// 纬度。
+    /// </summary>
+    public double? Latitude { get; set; }
+
+    /// <summary>
+    /// 公告。
+    /// </summary>
+    public string? Announcement { get; set; }
+
+    /// <summary>
+    /// 标签。
+    /// </summary>
+    public string? Tags { get; set; }
+
+    /// <summary>
+    /// 配送半径。
+    /// </summary>
+    public decimal DeliveryRadiusKm { get; set; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool SupportsDineIn { get; set; } = true;
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool SupportsPickup { get; set; } = true;
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool SupportsDelivery { get; set; } = true;
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Dto/StoreDto.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Dto/StoreDto.cs
new file mode 100644
index 0000000..e924b43
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Dto/StoreDto.cs
@@ -0,0 +1,114 @@
+using System.Text.Json.Serialization;
+using TakeoutSaaS.Domain.Stores.Enums;
+using TakeoutSaaS.Shared.Abstractions.Serialization;
+
+namespace TakeoutSaaS.Application.App.Stores.Dto;
+
+/// <summary>
+/// 门店 DTO。
+/// </summary>
+public sealed class StoreDto
+{
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long Id { get; init; }
+
+    /// <summary>
+    /// 租户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long TenantId { get; init; }
+
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    [JsonConverter(typeof(SnowflakeIdJsonConverter))]
+    public long MerchantId { get; init; }
+
+    /// <summary>
+    /// 门店编码。
+    /// </summary>
+    public string Code { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 门店名称。
+    /// </summary>
+    public string Name { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 电话。
+    /// </summary>
+    public string? Phone { get; init; }
+
+    /// <summary>
+    /// 负责人。
+    /// </summary>
+    public string? ManagerName { get; init; }
+
+    /// <summary>
+    /// 状态。
+    /// </summary>
+    public StoreStatus Status { get; init; }
+
+    /// <summary>
+    /// 省份。
+    /// </summary>
+    public string? Province { get; init; }
+
+    /// <summary>
+    /// 城市。
+    /// </summary>
+    public string? City { get; init; }
+
+    /// <summary>
+    /// 区县。
+    /// </summary>
+    public string? District { get; init; }
+
+    /// <summary>
+    /// 详细地址。
+    /// </summary>
+    public string? Address { get; init; }
+
+    /// <summary>
+    /// 经度。
+    /// </summary>
+    public double? Longitude { get; init; }
+
+    /// <summary>
+    /// 纬度。
+    /// </summary>
+    public double? Latitude { get; init; }
+
+    /// <summary>
+    /// 公告。
+    /// </summary>
+    public string? Announcement { get; init; }
+
+    /// <summary>
+    /// 标签。
+    /// </summary>
+    public string? Tags { get; init; }
+
+    /// <summary>
+    /// 默认配送半径。
+    /// </summary>
+    public decimal DeliveryRadiusKm { get; init; }
+
+    /// <summary>
+    /// 支持堂食。
+    /// </summary>
+    public bool SupportsDineIn { get; init; }
+
+    /// <summary>
+    /// 支持自提。
+    /// </summary>
+    public bool SupportsPickup { get; init; }
+
+    /// <summary>
+    /// 支持配送。
+    /// </summary>
+    public bool SupportsDelivery { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/CreateStoreCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/CreateStoreCommandHandler.cs
new file mode 100644
index 0000000..56f9d9c
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/CreateStoreCommandHandler.cs
@@ -0,0 +1,77 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Stores.Commands;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Domain.Stores.Entities;
+using TakeoutSaaS.Domain.Stores.Repositories;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 创建门店命令处理器。
+/// </summary>
+public sealed class CreateStoreCommandHandler(IStoreRepository storeRepository, ILogger<CreateStoreCommandHandler> logger)
+    : IRequestHandler<CreateStoreCommand, StoreDto>
+{
+    private readonly IStoreRepository _storeRepository = storeRepository;
+    private readonly ILogger<CreateStoreCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<StoreDto> Handle(CreateStoreCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 构建实体
+        var store = new Store
+        {
+            MerchantId = request.MerchantId,
+            Code = request.Code.Trim(),
+            Name = request.Name.Trim(),
+            Phone = request.Phone?.Trim(),
+            ManagerName = request.ManagerName?.Trim(),
+            Status = request.Status,
+            Province = request.Province?.Trim(),
+            City = request.City?.Trim(),
+            District = request.District?.Trim(),
+            Address = request.Address?.Trim(),
+            Longitude = request.Longitude,
+            Latitude = request.Latitude,
+            Announcement = request.Announcement?.Trim(),
+            Tags = request.Tags?.Trim(),
+            DeliveryRadiusKm = request.DeliveryRadiusKm,
+            SupportsDineIn = request.SupportsDineIn,
+            SupportsPickup = request.SupportsPickup,
+            SupportsDelivery = request.SupportsDelivery
+        };
+
+        // 2. 持久化
+        await _storeRepository.AddStoreAsync(store, cancellationToken);
+        await _storeRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("创建门店 {StoreId} - {StoreName}", store.Id, store.Name);
+
+        // 3. 返回 DTO
+        return MapToDto(store);
+    }
+
+    private static StoreDto MapToDto(Store store) => new()
+    {
+        Id = store.Id,
+        TenantId = store.TenantId,
+        MerchantId = store.MerchantId,
+        Code = store.Code,
+        Name = store.Name,
+        Phone = store.Phone,
+        ManagerName = store.ManagerName,
+        Status = store.Status,
+        Province = store.Province,
+        City = store.City,
+        District = store.District,
+        Address = store.Address,
+        Longitude = store.Longitude,
+        Latitude = store.Latitude,
+        Announcement = store.Announcement,
+        Tags = store.Tags,
+        DeliveryRadiusKm = store.DeliveryRadiusKm,
+        SupportsDineIn = store.SupportsDineIn,
+        SupportsPickup = store.SupportsPickup,
+        SupportsDelivery = store.SupportsDelivery
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/DeleteStoreCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/DeleteStoreCommandHandler.cs
new file mode 100644
index 0000000..7e30eaf
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/DeleteStoreCommandHandler.cs
@@ -0,0 +1,40 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Stores.Commands;
+using TakeoutSaaS.Domain.Stores.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 删除门店命令处理器。
+/// </summary>
+public sealed class DeleteStoreCommandHandler(
+    IStoreRepository storeRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteStoreCommandHandler> logger)
+    : IRequestHandler<DeleteStoreCommand, bool>
+{
+    private readonly IStoreRepository _storeRepository = storeRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<DeleteStoreCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteStoreCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 校验存在性
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _storeRepository.FindByIdAsync(request.StoreId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return false;
+        }
+
+        // 2. 删除
+        await _storeRepository.DeleteStoreAsync(request.StoreId, tenantId, cancellationToken);
+        await _storeRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("删除门店 {StoreId}", request.StoreId);
+
+        return true;
+    }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/GetStoreByIdQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/GetStoreByIdQueryHandler.cs
new file mode 100644
index 0000000..4cb8cb0
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/GetStoreByIdQueryHandler.cs
@@ -0,0 +1,52 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Application.App.Stores.Queries;
+using TakeoutSaaS.Domain.Stores.Entities;
+using TakeoutSaaS.Domain.Stores.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 门店详情查询处理器。
+/// </summary>
+public sealed class GetStoreByIdQueryHandler(
+    IStoreRepository storeRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetStoreByIdQuery, StoreDto?>
+{
+    private readonly IStoreRepository _storeRepository = storeRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<StoreDto?> Handle(GetStoreByIdQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var store = await _storeRepository.FindByIdAsync(request.StoreId, tenantId, cancellationToken);
+        return store == null ? null : MapToDto(store);
+    }
+
+    private static StoreDto MapToDto(Store store) => new()
+    {
+        Id = store.Id,
+        TenantId = store.TenantId,
+        MerchantId = store.MerchantId,
+        Code = store.Code,
+        Name = store.Name,
+        Phone = store.Phone,
+        ManagerName = store.ManagerName,
+        Status = store.Status,
+        Province = store.Province,
+        City = store.City,
+        District = store.District,
+        Address = store.Address,
+        Longitude = store.Longitude,
+        Latitude = store.Latitude,
+        Announcement = store.Announcement,
+        Tags = store.Tags,
+        DeliveryRadiusKm = store.DeliveryRadiusKm,
+        SupportsDineIn = store.SupportsDineIn,
+        SupportsPickup = store.SupportsPickup,
+        SupportsDelivery = store.SupportsDelivery
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/SearchStoresQueryHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/SearchStoresQueryHandler.cs
new file mode 100644
index 0000000..4efe538
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/SearchStoresQueryHandler.cs
@@ -0,0 +1,59 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Application.App.Stores.Queries;
+using TakeoutSaaS.Domain.Stores.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 门店列表查询处理器。
+/// </summary>
+public sealed class SearchStoresQueryHandler(
+    IStoreRepository storeRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchStoresQuery, IReadOnlyList<StoreDto>>
+{
+    private readonly IStoreRepository _storeRepository = storeRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<StoreDto>> Handle(SearchStoresQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var stores = await _storeRepository.SearchAsync(tenantId, request.Status, cancellationToken);
+
+        if (request.MerchantId.HasValue)
+        {
+            stores = stores.Where(x => x.MerchantId == request.MerchantId.Value).ToList();
+        }
+
+        return stores
+            .Select(MapToDto)
+            .ToList();
+    }
+
+    private static StoreDto MapToDto(Domain.Stores.Entities.Store store) => new()
+    {
+        Id = store.Id,
+        TenantId = store.TenantId,
+        MerchantId = store.MerchantId,
+        Code = store.Code,
+        Name = store.Name,
+        Phone = store.Phone,
+        ManagerName = store.ManagerName,
+        Status = store.Status,
+        Province = store.Province,
+        City = store.City,
+        District = store.District,
+        Address = store.Address,
+        Longitude = store.Longitude,
+        Latitude = store.Latitude,
+        Announcement = store.Announcement,
+        Tags = store.Tags,
+        DeliveryRadiusKm = store.DeliveryRadiusKm,
+        SupportsDineIn = store.SupportsDineIn,
+        SupportsPickup = store.SupportsPickup,
+        SupportsDelivery = store.SupportsDelivery
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/UpdateStoreCommandHandler.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/UpdateStoreCommandHandler.cs
new file mode 100644
index 0000000..1680932
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Handlers/UpdateStoreCommandHandler.cs
@@ -0,0 +1,87 @@
+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Stores.Commands;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Domain.Stores.Entities;
+using TakeoutSaaS.Domain.Stores.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 更新门店命令处理器。
+/// </summary>
+public sealed class UpdateStoreCommandHandler(
+    IStoreRepository storeRepository,
+    ITenantProvider tenantProvider,
+    ILogger<UpdateStoreCommandHandler> logger)
+    : IRequestHandler<UpdateStoreCommand, StoreDto?>
+{
+    private readonly IStoreRepository _storeRepository = storeRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+    private readonly ILogger<UpdateStoreCommandHandler> _logger = logger;
+
+    /// <inheritdoc />
+    public async Task<StoreDto?> Handle(UpdateStoreCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 读取门店
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var existing = await _storeRepository.FindByIdAsync(request.StoreId, tenantId, cancellationToken);
+        if (existing == null)
+        {
+            return null;
+        }
+
+        // 2. 更新字段
+        existing.MerchantId = request.MerchantId;
+        existing.Code = request.Code.Trim();
+        existing.Name = request.Name.Trim();
+        existing.Phone = request.Phone?.Trim();
+        existing.ManagerName = request.ManagerName?.Trim();
+        existing.Status = request.Status;
+        existing.Province = request.Province?.Trim();
+        existing.City = request.City?.Trim();
+        existing.District = request.District?.Trim();
+        existing.Address = request.Address?.Trim();
+        existing.Longitude = request.Longitude;
+        existing.Latitude = request.Latitude;
+        existing.Announcement = request.Announcement?.Trim();
+        existing.Tags = request.Tags?.Trim();
+        existing.DeliveryRadiusKm = request.DeliveryRadiusKm;
+        existing.SupportsDineIn = request.SupportsDineIn;
+        existing.SupportsPickup = request.SupportsPickup;
+        existing.SupportsDelivery = request.SupportsDelivery;
+
+        // 3. 持久化
+        await _storeRepository.UpdateStoreAsync(existing, cancellationToken);
+        await _storeRepository.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("更新门店 {StoreId} - {StoreName}", existing.Id, existing.Name);
+
+        // 4. 返回 DTO
+        return MapToDto(existing);
+    }
+
+    private static StoreDto MapToDto(Store store) => new()
+    {
+        Id = store.Id,
+        TenantId = store.TenantId,
+        MerchantId = store.MerchantId,
+        Code = store.Code,
+        Name = store.Name,
+        Phone = store.Phone,
+        ManagerName = store.ManagerName,
+        Status = store.Status,
+        Province = store.Province,
+        City = store.City,
+        District = store.District,
+        Address = store.Address,
+        Longitude = store.Longitude,
+        Latitude = store.Latitude,
+        Announcement = store.Announcement,
+        Tags = store.Tags,
+        DeliveryRadiusKm = store.DeliveryRadiusKm,
+        SupportsDineIn = store.SupportsDineIn,
+        SupportsPickup = store.SupportsPickup,
+        SupportsDelivery = store.SupportsDelivery
+    };
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Queries/GetStoreByIdQuery.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Queries/GetStoreByIdQuery.cs
new file mode 100644
index 0000000..7f0699e
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Queries/GetStoreByIdQuery.cs
@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+
+namespace TakeoutSaaS.Application.App.Stores.Queries;
+
+/// <summary>
+/// 获取门店详情查询。
+/// </summary>
+public sealed class GetStoreByIdQuery : IRequest<StoreDto?>
+{
+    /// <summary>
+    /// 门店 ID。
+    /// </summary>
+    public long StoreId { get; init; }
+}
diff --git a/src/Application/TakeoutSaaS.Application/App/Stores/Queries/SearchStoresQuery.cs b/src/Application/TakeoutSaaS.Application/App/Stores/Queries/SearchStoresQuery.cs
new file mode 100644
index 0000000..085a557
--- /dev/null
+++ b/src/Application/TakeoutSaaS.Application/App/Stores/Queries/SearchStoresQuery.cs
@@ -0,0 +1,21 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Stores.Dto;
+using TakeoutSaaS.Domain.Stores.Enums;
+
+namespace TakeoutSaaS.Application.App.Stores.Queries;
+
+/// <summary>
+/// 门店列表查询。
+/// </summary>
+public sealed class SearchStoresQuery : IRequest<IReadOnlyList<StoreDto>>
+{
+    /// <summary>
+    /// 商户 ID（可选）。
+    /// </summary>
+    public long? MerchantId { get; init; }
+
+    /// <summary>
+    /// 状态过滤。
+    /// </summary>
+    public StoreStatus? Status { get; init; }
+}
diff --git a/src/Domain/TakeoutSaaS.Domain/Deliveries/Repositories/IDeliveryRepository.cs b/src/Domain/TakeoutSaaS.Domain/Deliveries/Repositories/IDeliveryRepository.cs
index d0a2132..27d5c95 100644
--- a/src/Domain/TakeoutSaaS.Domain/Deliveries/Repositories/IDeliveryRepository.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Deliveries/Repositories/IDeliveryRepository.cs
@@ -2,6 +2,7 @@ using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using TakeoutSaaS.Domain.Deliveries.Entities;
+using TakeoutSaaS.Domain.Deliveries.Enums;
 
 namespace TakeoutSaaS.Domain.Deliveries.Repositories;
 
@@ -40,6 +41,11 @@ public interface IDeliveryRepository
     /// </summary>
     Task SaveChangesAsync(CancellationToken cancellationToken = default);
 
+    /// <summary>
+    /// 按状态查询配送单。
+    /// </summary>
+    Task<IReadOnlyList<DeliveryOrder>> SearchAsync(long tenantId, DeliveryStatus? status, long? orderId, CancellationToken cancellationToken = default);
+
     /// <summary>
     /// 更新配送单。
     /// </summary>
diff --git a/src/Domain/TakeoutSaaS.Domain/Payments/Repositories/IPaymentRepository.cs b/src/Domain/TakeoutSaaS.Domain/Payments/Repositories/IPaymentRepository.cs
index ec286b5..f12c937 100644
--- a/src/Domain/TakeoutSaaS.Domain/Payments/Repositories/IPaymentRepository.cs
+++ b/src/Domain/TakeoutSaaS.Domain/Payments/Repositories/IPaymentRepository.cs
@@ -2,6 +2,7 @@ using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using TakeoutSaaS.Domain.Payments.Entities;
+using TakeoutSaaS.Domain.Payments.Enums;
 
 namespace TakeoutSaaS.Domain.Payments.Repositories;
 
@@ -40,6 +41,11 @@ public interface IPaymentRepository
     /// </summary>
     Task SaveChangesAsync(CancellationToken cancellationToken = default);
 
+    /// <summary>
+    /// 按状态筛选支付记录。
+    /// </summary>
+    Task<IReadOnlyList<PaymentRecord>> SearchAsync(long tenantId, PaymentStatus? status, CancellationToken cancellationToken = default);
+
     /// <summary>
     /// 更新支付记录。
     /// </summary>
diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfDeliveryRepository.cs b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfDeliveryRepository.cs
index 5c408ef..32b482f 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfDeliveryRepository.cs
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfDeliveryRepository.cs
@@ -1,6 +1,7 @@
 using System.Linq;
 using Microsoft.EntityFrameworkCore;
 using TakeoutSaaS.Domain.Deliveries.Entities;
+using TakeoutSaaS.Domain.Deliveries.Enums;
 using TakeoutSaaS.Domain.Deliveries.Repositories;
 using TakeoutSaaS.Infrastructure.App.Persistence;
 
@@ -69,6 +70,28 @@ public sealed class EfDeliveryRepository : IDeliveryRepository
         return _context.SaveChangesAsync(cancellationToken);
     }
 
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<DeliveryOrder>> SearchAsync(long tenantId, DeliveryStatus? status, long? orderId, CancellationToken cancellationToken = default)
+    {
+        var query = _context.DeliveryOrders
+            .AsNoTracking()
+            .Where(x => x.TenantId == tenantId);
+
+        if (status.HasValue)
+        {
+            query = query.Where(x => x.Status == status.Value);
+        }
+
+        if (orderId.HasValue)
+        {
+            query = query.Where(x => x.OrderId == orderId.Value);
+        }
+
+        return await query
+            .OrderByDescending(x => x.CreatedAt)
+            .ToListAsync(cancellationToken);
+    }
+
     /// <inheritdoc />
     public Task UpdateDeliveryOrderAsync(DeliveryOrder deliveryOrder, CancellationToken cancellationToken = default)
     {
diff --git a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfPaymentRepository.cs b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfPaymentRepository.cs
index 8ea2124..f4dfb6c 100644
--- a/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfPaymentRepository.cs
+++ b/src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfPaymentRepository.cs
@@ -1,6 +1,7 @@
 using System.Linq;
 using Microsoft.EntityFrameworkCore;
 using TakeoutSaaS.Domain.Payments.Entities;
+using TakeoutSaaS.Domain.Payments.Enums;
 using TakeoutSaaS.Domain.Payments.Repositories;
 using TakeoutSaaS.Infrastructure.App.Persistence;
 
@@ -63,6 +64,23 @@ public sealed class EfPaymentRepository : IPaymentRepository
         return _context.PaymentRefundRecords.AddAsync(refund, cancellationToken).AsTask();
     }
 
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<PaymentRecord>> SearchAsync(long tenantId, PaymentStatus? status, CancellationToken cancellationToken = default)
+    {
+        var query = _context.PaymentRecords
+            .AsNoTracking()
+            .Where(x => x.TenantId == tenantId);
+
+        if (status.HasValue)
+        {
+            query = query.Where(x => x.Status == status.Value);
+        }
+
+        return await query
+            .OrderByDescending(x => x.CreatedAt)
+            .ToListAsync(cancellationToken);
+    }
+
     /// <inheritdoc />
     public Task SaveChangesAsync(CancellationToken cancellationToken = default)
     {