diff --git a/src/Api/TakeoutSaaS.TenantApi/Contracts/Product/ProductAddonContracts.cs b/src/Api/TakeoutSaaS.TenantApi/Contracts/Product/ProductAddonContracts.cs
new file mode 100644
index 0000000..29f574c
--- /dev/null
+++ b/src/Api/TakeoutSaaS.TenantApi/Contracts/Product/ProductAddonContracts.cs
@@ -0,0 +1,279 @@
+namespace TakeoutSaaS.TenantApi.Contracts.Product;
+
+///
+/// 加料组列表查询请求。
+///
+public sealed class ProductAddonGroupListRequest
+{
+ ///
+ /// 门店 ID。
+ ///
+ public string StoreId { get; set; } = string.Empty;
+
+ ///
+ /// 关键字。
+ ///
+ public string? Keyword { get; set; }
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string? Status { get; set; }
+}
+
+///
+/// 保存加料组请求。
+///
+public sealed class SaveProductAddonGroupRequest
+{
+ ///
+ /// 门店 ID。
+ ///
+ public string StoreId { get; set; } = string.Empty;
+
+ ///
+ /// 加料组 ID(编辑时传)。
+ ///
+ public string? Id { get; set; }
+
+ ///
+ /// 加料组名称。
+ ///
+ public string Name { get; set; } = string.Empty;
+
+ ///
+ /// 加料组描述。
+ ///
+ public string Description { get; set; } = string.Empty;
+
+ ///
+ /// 是否必选。
+ ///
+ public bool Required { get; set; }
+
+ ///
+ /// 最小可选数。
+ ///
+ public int MinSelect { get; set; }
+
+ ///
+ /// 最大可选数。
+ ///
+ public int MaxSelect { get; set; }
+
+ ///
+ /// 排序值。
+ ///
+ public int Sort { get; set; }
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string Status { get; set; } = "enabled";
+
+ ///
+ /// 关联商品 ID 列表。
+ ///
+ public List ProductIds { get; set; } = [];
+
+ ///
+ /// 加料项列表。
+ ///
+ public List Items { get; set; } = [];
+}
+
+///
+/// 保存加料项请求。
+///
+public sealed class SaveProductAddonItemRequest
+{
+ ///
+ /// 加料项 ID(编辑时传)。
+ ///
+ public string? Id { get; set; }
+
+ ///
+ /// 加料项名称。
+ ///
+ public string Name { get; set; } = string.Empty;
+
+ ///
+ /// 加价金额。
+ ///
+ public decimal Price { get; set; }
+
+ ///
+ /// 库存数量。
+ ///
+ public int Stock { get; set; } = 999;
+
+ ///
+ /// 排序值。
+ ///
+ public int Sort { get; set; }
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string Status { get; set; } = "enabled";
+}
+
+///
+/// 删除加料组请求。
+///
+public sealed class DeleteProductAddonGroupRequest
+{
+ ///
+ /// 门店 ID。
+ ///
+ public string StoreId { get; set; } = string.Empty;
+
+ ///
+ /// 加料组 ID。
+ ///
+ public string GroupId { get; set; } = string.Empty;
+}
+
+///
+/// 修改加料组状态请求。
+///
+public sealed class ChangeProductAddonGroupStatusRequest
+{
+ ///
+ /// 门店 ID。
+ ///
+ public string StoreId { get; set; } = string.Empty;
+
+ ///
+ /// 加料组 ID。
+ ///
+ public string GroupId { get; set; } = string.Empty;
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string Status { get; set; } = "enabled";
+}
+
+///
+/// 绑定加料组商品请求。
+///
+public sealed class BindProductAddonGroupProductsRequest
+{
+ ///
+ /// 门店 ID。
+ ///
+ public string StoreId { get; set; } = string.Empty;
+
+ ///
+ /// 加料组 ID。
+ ///
+ public string GroupId { get; set; } = string.Empty;
+
+ ///
+ /// 商品 ID 列表。
+ ///
+ public List ProductIds { get; set; } = [];
+}
+
+///
+/// 加料项响应。
+///
+public sealed class ProductAddonItemResponse
+{
+ ///
+ /// 加料项 ID。
+ ///
+ public string Id { get; set; } = string.Empty;
+
+ ///
+ /// 加料项名称。
+ ///
+ public string Name { get; set; } = string.Empty;
+
+ ///
+ /// 加价金额。
+ ///
+ public decimal Price { get; set; }
+
+ ///
+ /// 库存数量。
+ ///
+ public int Stock { get; set; }
+
+ ///
+ /// 排序值。
+ ///
+ public int Sort { get; set; }
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string Status { get; set; } = "enabled";
+}
+
+///
+/// 加料组响应。
+///
+public sealed class ProductAddonGroupItemResponse
+{
+ ///
+ /// 加料组 ID。
+ ///
+ public string Id { get; set; } = string.Empty;
+
+ ///
+ /// 加料组名称。
+ ///
+ public string Name { get; set; } = string.Empty;
+
+ ///
+ /// 描述。
+ ///
+ public string Description { get; set; } = string.Empty;
+
+ ///
+ /// 是否必选。
+ ///
+ public bool Required { get; set; }
+
+ ///
+ /// 最小可选数。
+ ///
+ public int MinSelect { get; set; }
+
+ ///
+ /// 最大可选数。
+ ///
+ public int MaxSelect { get; set; }
+
+ ///
+ /// 排序值。
+ ///
+ public int Sort { get; set; }
+
+ ///
+ /// 状态(enabled/disabled)。
+ ///
+ public string Status { get; set; } = "enabled";
+
+ ///
+ /// 关联商品数量。
+ ///
+ public int ProductCount { get; set; }
+
+ ///
+ /// 关联商品 ID 列表。
+ ///
+ public List ProductIds { get; set; } = [];
+
+ ///
+ /// 加料项列表。
+ ///
+ public List Items { get; set; } = [];
+
+ ///
+ /// 更新时间。
+ ///
+ public string UpdatedAt { get; set; } = string.Empty;
+}
diff --git a/src/Api/TakeoutSaaS.TenantApi/Controllers/ProductAddonController.cs b/src/Api/TakeoutSaaS.TenantApi/Controllers/ProductAddonController.cs
new file mode 100644
index 0000000..156cfb3
--- /dev/null
+++ b/src/Api/TakeoutSaaS.TenantApi/Controllers/ProductAddonController.cs
@@ -0,0 +1,204 @@
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Products.Commands;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Application.App.Products.Queries;
+using TakeoutSaaS.Application.App.Stores.Services;
+using TakeoutSaaS.Infrastructure.App.Persistence;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+using TakeoutSaaS.TenantApi.Contracts.Product;
+
+namespace TakeoutSaaS.TenantApi.Controllers;
+
+///
+/// 租户端加料管理。
+///
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/tenant/v{version:apiVersion}/product")]
+public sealed class ProductAddonController(
+ IMediator mediator,
+ TakeoutAppDbContext dbContext,
+ StoreContextService storeContextService) : BaseApiController
+{
+ ///
+ /// 加料组列表。
+ ///
+ [HttpGet("addon/group/list")]
+ [ProducesResponseType(typeof(ApiResponse>), StatusCodes.Status200OK)]
+ public async Task>> GetAddonGroupList(
+ [FromQuery] ProductAddonGroupListRequest request,
+ CancellationToken cancellationToken)
+ {
+ // 1. 校验门店访问权限。
+ var storeId = StoreApiHelpers.ParseRequiredSnowflake(request.StoreId, nameof(request.StoreId));
+ await EnsureStoreAccessibleAsync(storeId, cancellationToken);
+
+ // 2. 查询并返回列表。
+ var result = await mediator.Send(new GetProductAddonGroupListQuery
+ {
+ StoreId = storeId,
+ Keyword = request.Keyword,
+ Status = request.Status
+ }, cancellationToken);
+
+ return ApiResponse>.Ok(result.Select(MapAddonGroupItem).ToList());
+ }
+
+ ///
+ /// 保存加料组。
+ ///
+ [HttpPost("addon/group/save")]
+ [ProducesResponseType(typeof(ApiResponse), StatusCodes.Status200OK)]
+ public async Task> SaveAddonGroup(
+ [FromBody] SaveProductAddonGroupRequest request,
+ CancellationToken cancellationToken)
+ {
+ // 1. 校验门店访问权限。
+ var storeId = StoreApiHelpers.ParseRequiredSnowflake(request.StoreId, nameof(request.StoreId));
+ await EnsureStoreAccessibleAsync(storeId, cancellationToken);
+
+ // 2. 提交保存命令。
+ var result = await mediator.Send(new SaveProductAddonGroupCommand
+ {
+ StoreId = storeId,
+ GroupId = StoreApiHelpers.ParseSnowflakeOrNull(request.Id),
+ Name = request.Name,
+ Description = request.Description,
+ Required = request.Required,
+ MinSelect = request.MinSelect,
+ MaxSelect = request.MaxSelect,
+ Sort = request.Sort,
+ Status = request.Status,
+ ProductIds = StoreApiHelpers.ParseSnowflakeList(request.ProductIds),
+ Items = (request.Items ?? [])
+ .Select(item => new SaveProductAddonItemCommand
+ {
+ Id = StoreApiHelpers.ParseSnowflakeOrNull(item.Id),
+ Name = item.Name,
+ Price = item.Price,
+ Stock = item.Stock,
+ Sort = item.Sort,
+ Status = item.Status
+ })
+ .ToList()
+ }, cancellationToken);
+
+ return ApiResponse.Ok(MapAddonGroupItem(result));
+ }
+
+ ///
+ /// 删除加料组。
+ ///
+ [HttpPost("addon/group/delete")]
+ [ProducesResponseType(typeof(ApiResponse