diff --git a/pages/index/index.js b/pages/index/index.js
index 9fc8961..367a380 100644
--- a/pages/index/index.js
+++ b/pages/index/index.js
@@ -132,18 +132,10 @@ Page({
   
   // 切换按钮显示/隐藏到侧边栏
   toggleSidebarBtn() {
-    // 如果当前不在顶部，点击则隐藏按钮
-    if (this.data.lastScrollTop > 50) {
-      this.setData({
-        sidebarBtnHidden: true
-      });
-      wx.setStorageSync('sidebarBtnHidden', true);
-    } else {
-      this.setData({
-        sidebarBtnHidden: !this.data.sidebarBtnHidden
-      });
-      wx.setStorageSync('sidebarBtnHidden', !this.data.sidebarBtnHidden);
-    }
+    this.setData({
+      sidebarBtnHidden: !this.data.sidebarBtnHidden
+    });
+    wx.setStorageSync('sidebarBtnHidden', !this.data.sidebarBtnHidden);
   },
   
   // 触摸开始事件
@@ -738,6 +730,9 @@ Page({
         const totalPages = res.totalPages || Math.ceil(totalGoods / this.data.pageSize);
         const hasMoreData = page < totalPages && res.products.length > 0;
         
+        // 如果返回的商品数量小于每页数量，说明没有更多数据了
+        const actualHasMoreData = res.products.length >= this.data.pageSize && page < totalPages;
+        
         // 更新缓存（加载更多时追加数据）
         const updatedCache = { ...this.data.categoryQueryCache };
         if (isLoadMore && updatedCache[cacheKey]) {
@@ -751,7 +746,7 @@ Page({
         }
         
         this.setData({ 
-          hasMoreData,
+          hasMoreData: actualHasMoreData,
           categoryQueryCache: updatedCache,
           lastDataTimestamp: now,
           goodsCache: updatedCache[cacheKey]
diff --git a/pages/index/index.wxml b/pages/index/index.wxml
index a7fd2ba..dd8a8c0 100644
--- a/pages/index/index.wxml
+++ b/pages/index/index.wxml
@@ -87,7 +87,6 @@
     class="back-to-top-btn {{showBackToTop ? 'visible' : ''}}" 
     bindtap="scrollToTop"
   >
-    <text class="back-to-top-icon">↑</text>
     <text class="back-to-top-text">top</text>
   </view>
   <view wx:if="{{showSidebar}}" class="sidebar">
diff --git a/pages/index/index.wxss b/pages/index/index.wxss
index df2b923..d12c91c 100644
--- a/pages/index/index.wxss
+++ b/pages/index/index.wxss
@@ -43,6 +43,9 @@ page {
   min-height: 120rpx;
   box-shadow: 0 2rpx 12rpx rgba(0, 0, 0, 0.08);
   border-bottom: 1rpx solid rgba(0, 0, 0, 0.05);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
 }
 
 /* 确保所有主要区域背景一致 */
@@ -81,6 +84,8 @@ page {
 /* 搜索区域样式调整 */
 .top-section-container .search-section {
   padding: 0 30rpx 15rpx;
+  width: 100%;
+  max-width: 800rpx;
 }
 
 /* 搜索框样式 */
@@ -140,12 +145,14 @@ page {
   min-height: calc(100vh - 60rpx);
   position: relative;
   background: #f5f5f5;
+  padding-bottom: calc(env(safe-area-inset-bottom) );
 }
 
 .goods-list {
   height: auto;
   box-sizing: border-box;
   background: #f5f5f5;
+  padding-bottom: calc(env(safe-area-inset-bottom) );
 }
 
 /* 标题样式 */
@@ -161,7 +168,7 @@ page {
 /* 搜索区域样式 */
 .search-section {
   width: 100%;
-  margin: 0 30rpx 0 10rpx;
+  margin: 0;
   box-sizing: border-box;
 }
 
@@ -337,7 +344,7 @@ wx-button:not([size=mini]) {
   background: transparent;
   border-radius: 0;
   border: none;
-  justify-content: flex-start;
+  justify-content: center;
   align-items: center;
 }
 
@@ -606,6 +613,7 @@ wx-button:not([size=mini]) {
 .goods-list-container {
   padding: 20rpx 24rpx;
   padding-bottom: 20rpx;
+  padding-bottom: calc(env(safe-area-inset-bottom) + 140rpx);
 }
 
 .waterfall-container {
@@ -1177,6 +1185,7 @@ wx-button:not([size=mini]) {
   padding: 0 20rpx;
   padding-bottom: 20rpx;
   min-height: calc(100% - 40rpx);
+  padding-bottom: calc(env(safe-area-inset-bottom) + 140rpx);
 }
 
 /* 瀑布流容器 */
@@ -1407,7 +1416,7 @@ wx-button:not([size=mini]) {
   align-items: center;
   justify-content: center;
   padding: 30rpx 20rpx;
-  padding-bottom: 50rpx;
+  padding-bottom: calc(env(safe-area-inset-bottom) + 10rpx);
   color: #999;
   font-size: 26rpx;
   gap: 20rpx;
@@ -1546,9 +1555,9 @@ wx-button:not([size=mini]) {
 }
 
 .back-to-top-text {
-  font-size: 16rpx;
+  font-size: 30rpx;
   color: #1677ff;
   margin-top: 4rpx;
-  font-weight: 500;
+  font-weight: bold;
   text-shadow: 0 1rpx 2rpx rgba(255, 255, 255, 0.8);
 }