diff --git a/.workbuddy/memory/2026-08-14.md b/.workbuddy/memory/2026-08-14.md
index 7937f03..43886d5 100644
--- a/.workbuddy/memory/2026-08-14.md
+++ b/.workbuddy/memory/2026-08-14.md
@@ -17,3 +17,10 @@
   - 在「分类标识」form-item 之后新增「链接地址」项，绑定 `form.path`（form 已有该字段，无需改 model/后端）。
   - 重置逻辑 Object.assign 补上 `path: undefined`，保证新增时清空。
 - 注意：仅前端 UI 改动，后端表 `shop_goods_category.path` 字段已存在，无需迁移。
+
+## 商品分类列表树形连线高度调紧凑
+
+- 问题：后台 `/shop/shopGoodsCategory` 列表中，树形层级连线 SVG 高度 40px，导致行显得太高、不紧凑。
+- 改动：`src/views/shop/shopGoodsCategory/index.vue`
+  - `renderTreePrefix` 中 SVG 高度 `H` 从 `40` 改为 `28`，`mid` 自动为 `14`。
+- 效果：二级/三级分类前的树形引导线高度降低，整行更紧凑。
diff --git a/src/api/shop/shopGoods/model/index.ts b/src/api/shop/shopGoods/model/index.ts
index 76f16d9..24a265d 100644
--- a/src/api/shop/shopGoods/model/index.ts
+++ b/src/api/shop/shopGoods/model/index.ts
@@ -31,8 +31,10 @@ export interface ShopGoods {
   canExpress?: number;
   // 商品分类
   category?: string;
-  // 商品分类ID
+  // 商品分类ID（主分类，向后兼容）
   categoryId?: number;
+  // 商品分类ID列表（方案B：可归属多个分类）
+  categoryIds?: number[];
   parentName?: string;
   categoryName?: string;
   // 一级分类
@@ -174,6 +176,8 @@ export interface ShopGoodsCollectParam {
 export interface ShopGoodsParam extends PageParam {
   parentId?: number;
   categoryId?: number;
+  // 方案B：按多个分类查询，与单值 categoryId 二选一，多值时优先
+  categoryIds?: number[];
   goodsId?: number;
   status?: number;
   goodsName?: string;
diff --git a/src/api/system/user/index.ts b/src/api/system/user/index.ts
index 0f47d4c..64c66b6 100644
--- a/src/api/system/user/index.ts
+++ b/src/api/system/user/index.ts
@@ -170,7 +170,7 @@ export async function updateUserStatus(userId?: number, status?: number) {
 /**
  * 修改推荐状态
  */
-export async function updateUserRecommend(form) {
+export async function updateUserRecommend(form: { userId: number; recommend: number }) {
   const res = await request.put<ApiResult<unknown>>(
     SERVER_API_URL + '/system/user/recommend',
     form
diff --git a/src/views/shop/shopGoods/components/search.vue b/src/views/shop/shopGoods/components/search.vue
index 8a01dc9..262398e 100644
--- a/src/views/shop/shopGoods/components/search.vue
+++ b/src/views/shop/shopGoods/components/search.vue
@@ -52,15 +52,17 @@
 
       <a-tree-select
         allow-clear
+        multiple
+        :max-tag-count="2"
         :tree-data="navigationList"
         tree-default-expand-all
-        style="width: 180px"
+        style="width: 200px"
         :listHeight="700"
-        placeholder="请选择分类"
-        :value="where.categoryId || undefined"
+        placeholder="请选择分类（可多选）"
+        :value="where.categoryIds && where.categoryIds.length ? where.categoryIds : undefined"
         :dropdown-style="{ overflow: 'auto' }"
-        @update:value="(value?: number) => (where.categoryId = value)"
-        @change="onCategoryId"
+        @update:value="(value?: number[]) => (where.categoryIds = value || [])"
+        @change="onCategoryIds"
       />
       <a-input-search
         allow-clear
@@ -149,6 +151,7 @@
     status: undefined,
     stock: undefined,
     categoryId: undefined,
+    categoryIds: [],
     merchantId: undefined,
     keywords: ''
   });
@@ -238,9 +241,10 @@
     reload();
   };
 
-  // 按分类查询
-  const onCategoryId = (id: number) => {
-    where.categoryId = id;
+  // 按分类查询（方案B：支持多选，主分类取首个）
+  const onCategoryIds = (ids: number[]) => {
+    where.categoryIds = ids || [];
+    where.categoryId = ids && ids.length ? ids[0] : undefined;
     emit('search', where);
   };
 
diff --git a/src/views/shop/shopGoods/components/shopGoodsEdit.vue b/src/views/shop/shopGoods/components/shopGoodsEdit.vue
index 7da6f25..fdefebe 100644
--- a/src/views/shop/shopGoods/components/shopGoodsEdit.vue
+++ b/src/views/shop/shopGoods/components/shopGoodsEdit.vue
@@ -32,18 +32,20 @@
               v-model:value="form.name"
             />
           </a-form-item>
-          <a-form-item label="商品分类" name="categoryId">
+          <a-form-item label="商品分类" name="categoryIds">
             <a-tree-select
               allow-clear
+              multiple
+              :max-tag-count="3"
               :tree-data="navigationList"
               tree-default-expand-all
               style="width: 320px"
-              placeholder="请选择分类"
-              :value="form.categoryId || undefined"
+              placeholder="请选择分类（可多选）"
+              :value="form.categoryIds && form.categoryIds.length ? form.categoryIds : undefined"
               :listHeight="700"
               :dropdown-style="{ overflow: 'auto' }"
-              @update:value="(value?: number) => (form.categoryId = value)"
-              @change="onCategoryId"
+              @update:value="(value?: number[]) => (form.categoryIds = value || [])"
+              @change="onCategoryIds"
             />
           </a-form-item>
           <a-form-item label="商品编码" name="code">
@@ -928,12 +930,13 @@ const addEnsureTag = (item = '') => {
   ensureTagItem.value = '';
 };
 
-// 选择栏目
-const onCategoryId = (id: number) => {
-  form.categoryId = id;
+// 选择栏目（方案B：支持多选，主分类取列表首个，向后兼容旧字段）
+const onCategoryIds = (ids: number[]) => {
+  form.categoryIds = ids || [];
+  form.categoryId = ids && ids.length ? ids[0] : undefined;
   // 💾 在新增模式下，用户手动选择栏目时也保存到本地存储
-  if (!isUpdate.value && id) {
-    saveLastCategory(id);
+  if (!isUpdate.value && ids && ids.length) {
+    saveLastCategory(ids[0]);
   }
 };
 
@@ -1204,6 +1207,7 @@ const form = reactive<ShopGoods>({
   canExpress: 1,
   unitName: '',
   categoryId: undefined,
+  categoryIds: [],
   parentName: undefined,
   categoryName: undefined,
   specs: 0,
@@ -1449,14 +1453,18 @@ const chooseSupplier = (item: ShopMerchant) => {
 };
 
 const chooseGoodsCategory = (item: ShopGoodsCategory, value: any) => {
-  form.categoryId = value[1].value;
+  const cid = value[1].value as number;
+  form.categoryId = cid;
+  form.categoryIds = [cid];
   form.parentName = value[0].label;
   form.categoryName = value[1].label;
 };
 const chooseTakeawayCategory = (item: ShopGoodsCategory, value: any) => {
+  const cid = item[0] as number;
   form.categoryParent = '店铺分类';
   form.categoryChildren = value[0].label;
-  form.categoryId = item[0];
+  form.categoryId = cid;
+  form.categoryIds = [cid];
 };
 
 const chooseImage = (data: FileRecord) => {
@@ -1788,6 +1796,11 @@ const save = () => {
       if (form.specs === 1 && goodsSpec.value && spec.value.length) {
         goodsSpec.value.specValue = JSON.stringify(spec.value);
       }
+      // 方案B：主分类兜底取多分类第一个，保证旧字段/旧逻辑兼容
+      if (form.categoryIds && form.categoryIds.length && !form.categoryId) {
+        form.categoryId = form.categoryIds[0];
+      }
+
       const formData: any = {
         ...form,
         content: content.value,
@@ -2050,15 +2063,21 @@ watch(
         if (form.ensureTag) {
           ensureTag.value = form.ensureTag.split(',');
         }
-        // 🎯 优先级设置栏目：
-        // 1. 如果传入了 categoryId（从栏目页面点击添加），使用传入的
-        // 2. 否则使用上次保存的栏目
-        if (props.data.categoryId) {
+        // 🎯 优先级设置栏目（方案B：支持多分类回填）：
+        // 1. 如果传入了 categoryIds，使用多分类
+        // 2. 否则如果传入了 categoryId，兼容单分类
+        // 3. 否则使用上次保存的栏目
+        if (props.data.categoryIds && props.data.categoryIds.length) {
+          form.categoryIds = props.data.categoryIds;
+          form.categoryId = props.data.categoryId ?? props.data.categoryIds[0];
+        } else if (props.data.categoryId) {
           form.categoryId = props.data?.categoryId;
+          form.categoryIds = [props.data.categoryId];
         } else {
           const lastCategory = getLastCategory();
           if (lastCategory) {
             form.categoryId = lastCategory;
+            form.categoryIds = [lastCategory];
           }
         }
         await getRoleList();
diff --git a/src/views/shop/shopGoods/index.vue b/src/views/shop/shopGoods/index.vue
index 315d298..497b34b 100644
--- a/src/views/shop/shopGoods/index.vue
+++ b/src/views/shop/shopGoods/index.vue
@@ -269,6 +269,15 @@
       key: 'name',
       width: 300
     },
+    {
+      title: '分类',
+      dataIndex: 'categoryName',
+      key: 'categoryName',
+      align: 'center',
+      width: 160,
+      ellipsis: true,
+      customRender: ({ text }) => text || '--'
+    },
     {
       title: '价格',
       key: 'priceGroup',
diff --git a/src/views/shop/shopGoodsCategory/index.vue b/src/views/shop/shopGoodsCategory/index.vue
index ee300fe..e4ab06e 100644
--- a/src/views/shop/shopGoodsCategory/index.vue
+++ b/src/views/shop/shopGoodsCategory/index.vue
@@ -38,7 +38,7 @@
               <img
                 v-if="record.adImage"
                 :src="getCompressedImageUrl(record.adImage, { width: 144, quality: 85 })"
-                style="width: 72px; height: 40px; object-fit: cover; border-radius: 4px;"
+                style="max-width: 56px; height: 28px; object-fit: cover; border-radius: 4px;"
               />
               <span v-else>-</span>
             </template>
@@ -176,7 +176,7 @@
     const depth = depthMap.value.get(record.categoryId || 0) || 0;
     if (depth === 0) return '';
     const W = 20;
-    const H = 40;
+    const H = 20;
     const mid = H / 2;
     // 回溯祖先链：chain[0]=顶级 ... chain[depth]=当前节点
     const chain: number[] = [];