修复分类筛选问题，数据归属当前选中分类

pages/index/index.js

@@ -530,14 +530,15 @@ Page({
     // 按品种分类存储商品数据
     const categorizedGoods = this.data.categorizedGoods || {};
     const categories = this.data.categories;
+    const selectedCategory = this.data.selectedCategory;
     
-    // 重置所有分类的商品列表
     categories.forEach(cat => {
       if (cat === '全部') {
         categorizedGoods[cat] = updatedGoods;
+      } else if (cat === selectedCategory) {
+        categorizedGoods[cat] = updatedGoods.filter(item => item.isAd || !item.category || item.category === cat);
       } else {
-        const categoryGoods = updatedGoods.filter(item => item.isAd || item.category === cat);
+        categorizedGoods[cat] = [];
-        categorizedGoods[cat] = categoryGoods;
       }
     });
     
@@ -545,7 +546,11 @@ Page({
     const filteredByRegion = this.applyRegionFilter(updatedGoods);
     categories.forEach(cat => {
       if (cat !== '全部') {
-        categorizedGoods[cat + '_filtered'] = filteredByRegion.filter(item => item.isAd || item.category === cat);
+        if (cat === selectedCategory) {
+          categorizedGoods[cat + '_filtered'] = filteredByRegion.filter(item => item.isAd || !item.category || item.category === cat);
+        } else {
+          categorizedGoods[cat + '_filtered'] = [];
+        }
       }
     });