diff --git a/pages/products/components/FilterDrawer.vue b/pages/products/components/FilterDrawer.vue
index 7bc78be..0560db0 100644
--- a/pages/products/components/FilterDrawer.vue
+++ b/pages/products/components/FilterDrawer.vue
@@ -31,9 +31,23 @@
         <view class="filter-group">
           <text class="filter-group-title">价格区间</text>
           <view class="filter-price-range">
-            <input class="price-input" placeholder="最低价" type="number" />
+            <input
+              class="price-input"
+              :class="{ 'input-error': minError }"
+              placeholder="最低价"
+              type="number"
+              v-model="minPrice"
+              @blur="onMinBlur"
+            />
             <text class="price-divider">-</text>
-            <input class="price-input" placeholder="最高价" type="number" />
+            <input
+              class="price-input"
+              :class="{ 'input-error': maxError }"
+              placeholder="最高价"
+              type="number"
+              v-model="maxPrice"
+              @blur="onMaxBlur"
+            />
           </view>
         </view>
       </scroll-view>
@@ -58,7 +72,83 @@ export default {
       default: () => []
     }
   },
+  data() {
+    return {
+      minPrice: '',
+      maxPrice: '',
+      minError: false,
+      maxError: false
+    }
+  },
   methods: {
+    /**
+     * 清洗价格输入：只保留数字和小数点（仅一个）
+     */
+    sanitizePrice(v) {
+      if (v === '' || v === null || v === undefined) return ''
+      var s = String(v).replace(/[^\d.]/g, '')
+      var i = s.indexOf('.')
+      if (i > -1) {
+        s = s.slice(0, i + 1) + s.slice(i + 1).replace(/\./g, '')
+      }
+      return s
+    },
+    /**
+     * 校验单个价格：非空时必须是 ≥0 的数字，否则提示并清空，返回 false
+     */
+    validateSingle(key) {
+      var raw = this.sanitizePrice(this[key])
+      this[key] = raw
+      if (raw === '') return true
+      var num = parseFloat(raw)
+      if (isNaN(num) || num < 0) {
+        uni.showToast({ title: '价格不能小于0', icon: 'none' })
+        this[key] = ''
+        return false
+      }
+      return true
+    },
+    flashError(key) {
+      this[key] = true
+      setTimeout(() => { this[key] = false }, 1500)
+    },
+    onMinBlur() {
+      if (!this.validateSingle('minPrice')) return
+      // 最低价 > 已填的最高价 → 最低价钳制到最高价（反向同样不允许越界）
+      var min = parseFloat(this.minPrice)
+      var max = parseFloat(this.maxPrice)
+      if (this.minPrice !== '' && this.maxPrice !== '' && min > max) {
+        this.minPrice = this.maxPrice
+        this.flashError('minError')
+        uni.showToast({ title: '最低价不能大于最高价，已自动调整', icon: 'none' })
+      }
+    },
+    onMaxBlur() {
+      if (!this.validateSingle('maxPrice')) return
+      // 最高价 < 已填的最低价 → 冒红并改成最低价
+      var min = parseFloat(this.minPrice)
+      var max = parseFloat(this.maxPrice)
+      if (this.maxPrice !== '' && this.minPrice !== '' && max < min) {
+        this.maxPrice = this.minPrice
+        this.flashError('maxError')
+        uni.showToast({ title: '最高价不能小于最低价，已自动调整', icon: 'none' })
+      }
+    },
+    /**
+     * 点击确定前的价格校验，校验不过则阻止请求
+     */
+    validatePrices() {
+      if (!this.validateSingle('minPrice')) return false
+      if (!this.validateSingle('maxPrice')) return false
+      var min = parseFloat(this.minPrice)
+      var max = parseFloat(this.maxPrice)
+      if (this.minPrice !== '' && this.maxPrice !== '' && max < min) {
+        this.flashError('maxError')
+        uni.showToast({ title: '最高价不能小于最低价', icon: 'none' })
+        return false
+      }
+      return true
+    },
     isSelected(group, tagId) {
       return (group.selected || []).indexOf(tagId) > -1
     },
@@ -66,10 +156,18 @@ export default {
       this.$emit('toggle-tag', { groupIndex: gIdx, tagId })
     },
     onReset() {
+      this.minPrice = ''
+      this.maxPrice = ''
+      this.minError = false
+      this.maxError = false
       this.$emit('reset')
     },
     onConfirm() {
-      this.$emit('confirm')
+      if (!this.validatePrices()) return
+      this.$emit('confirm', {
+        minPrice: this.minPrice,
+        maxPrice: this.maxPrice
+      })
     },
     onClose() {
       this.$emit('close')
@@ -128,6 +226,10 @@ export default {
 }
 .filter-drawer-body {
   flex: 1;
+  /* 框架默认 width:100% + padding 时 content-box 会超宽 64rpx，
+     导致右侧"最高价"输入框被挤出屏幕，必须 border-box */
+  width: 100%;
+  box-sizing: border-box;
   padding: 0 32rpx;
 }
 .filter-group {
@@ -162,18 +264,26 @@ export default {
 .filter-price-range {
   display: flex;
   align-items: center;
-  gap: 20rpx;
+  justify-content: space-between;
 }
 .price-input {
-  flex: 1;
+  /* 固定宽度，不依赖 flex 收缩（uni-input 自定义元素收缩行为不可靠） */
+  width: 230rpx;
+  box-sizing: border-box;
   height: 72rpx;
   padding: 0 20rpx;
   background: #f5f5f5;
   border-radius: 12rpx;
+  border: 2rpx solid transparent;
   font-size: 26rpx;
   color: #333333;
   text-align: center;
 }
+/* 校验失败冒红 */
+.price-input.input-error {
+  border-color: #ff0000;
+  background: #fff0f0;
+}
 .price-divider {
   font-size: 28rpx;
   color: #999999;
diff --git a/pages/products/components/ProductGrid.vue b/pages/products/components/ProductGrid.vue
index 81809b7..525aa2e 100644
--- a/pages/products/components/ProductGrid.vue
+++ b/pages/products/components/ProductGrid.vue
@@ -42,10 +42,19 @@
           <!-- 商品信息 -->
           <view class="product-info">
             <text class="product-name">{{ item.name }}</text>
-            <!-- 价格 + "起"字 -->
+            <!-- 价格 + "起"字 + 国家标签(未选国家时显示商品所属国家) -->
             <view class="price-row">
               <text class="product-price">￥{{ item.price }}</text>
               <text class="price-unit">起</text>
+              <view class="country-tag" v-if="showCountryTag && item.countryName">
+                <image
+                  class="country-tag-icon"
+                  :src="item.countryIcon"
+                  mode="aspectFill"
+                  v-if="item.countryIcon"
+                ></image>
+                <text class="country-tag-name">{{ item.countryName }}</text>
+              </view>
             </view>
           </view>
         </view>
@@ -75,6 +84,8 @@ export default {
     hasMore: { type: Boolean, default: true },
     loading: { type: Boolean, default: false },
     scrollTopVal: { type: Number, default: 0 },
+    // 未选择国家时显示商品所属国家标签
+    showCountryTag: { type: Boolean, default: false },
     // 商品滚动区固定高度（px），由父组件动态计算传入
     scrollHeight: { type: Number, default: 400 }
   },
@@ -216,6 +227,34 @@ export default {
   line-height: 1.2;
   margin-left: 4rpx;
 }
+/* 国家标签 - 价格右侧，国旗图标 + 国家名 */
+.country-tag {
+  display: inline-flex;
+  align-items: center;
+  gap: 6rpx;
+  margin-left: 12rpx;
+  padding: 4rpx 12rpx;
+  background: #f7f7f7;
+  border-radius: 20rpx;
+  max-width: 50%;
+  box-sizing: border-box;
+  overflow: hidden;
+}
+.country-tag-icon {
+  width: 28rpx;
+  height: 20rpx;
+  border-radius: 4rpx;
+  flex-shrink: 0;
+}
+.country-tag-name {
+  font-size: 20rpx;
+  font-weight: 500;
+  color: #666666;
+  line-height: 1.2;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
 
 /* 底部加载提示 */
 .load-tip {
diff --git a/pages/products/products.vue b/pages/products/products.vue
index 8c82bde..07d8c2c 100644
--- a/pages/products/products.vue
+++ b/pages/products/products.vue
@@ -46,6 +46,7 @@
           :loading="loadingMore"
           :scroll-top-val="scrollTopVal"
           :scroll-height="productScrollHeight"
+          :show-country-tag="!selectedCountry"
           @sub-select="selectSubCategory"
           @product-click="goDetail"
           @scroll-to-lower="onScrollToLower"
@@ -114,6 +115,8 @@ export default {
       activeFilters: [],
       showFilter: false,
       filterGroups: [],
+      minPrice: '',
+      maxPrice: '',
       pagination: {
         total: 0,
         current: 1,
@@ -255,7 +258,9 @@ export default {
           id: item.goodId,
           name: truncateProductTitle(item.goodName),
           price: item.price,
-          image: item.image
+          image: item.image,
+          countryName: (item.country && item.country.countryName) || '',
+          countryIcon: (item.country && item.country.countryIcon) ? buildUrl(item.country.countryIcon) : ''
         }))
 
         const total = data.total || 0
@@ -316,6 +321,13 @@ export default {
       if (kw) {
         params.keyword = kw
       }
+      // 价格区间：两个可单独传，也可同时传
+      if (this.minPrice !== '' && this.minPrice !== null && this.minPrice !== undefined) {
+        params.minPrice = this.minPrice
+      }
+      if (this.maxPrice !== '' && this.maxPrice !== null && this.maxPrice !== undefined) {
+        params.maxPrice = this.maxPrice
+      }
       const tagsList = (this.filterGroups || [])
         .filter((g) => g.selected && g.selected.length > 0)
         .map((g) => ({
@@ -514,6 +526,8 @@ export default {
     async clearAllFilters() {
       const hasCountry = this.activeFilters.some((f) => f.key === 'country')
       this.activeFilters = []
+      this.minPrice = ''
+      this.maxPrice = ''
       if (hasCountry || this.selectedCountry) {
         this.selectedCountry = ''
         await this.loadCategoryData('')
@@ -532,7 +546,10 @@ export default {
       this.filterGroups = groups
     },
 
-    async confirmFilters() {
+    async confirmFilters(payload) {
+      payload = payload || {}
+      this.minPrice = payload.minPrice || ''
+      this.maxPrice = payload.maxPrice || ''
       var filters = []
       var countryFilter = this.activeFilters.find(function (f) { return f.key === 'country' })
       if (countryFilter) filters.push(countryFilter)