diff --git a/pages/index/index.js b/pages/index/index.js
index 4a0aa4f..7dec3b1 100644
--- a/pages/index/index.js
+++ b/pages/index/index.js
@@ -25,8 +25,6 @@ Page({
     searchSectionVisible: true,
     lastScrollTop: 0,
     isScrollLocked: false,
-    searchSectionOpacity: 1,
-    searchSectionTransform: 0,
     isSearchBarFullyHidden: false,
     
     // 回到顶部按钮
@@ -826,33 +824,23 @@ Page({
   onScroll: function(e) {
     const { scrollTop } = e.detail;
     
-    let searchSectionOpacity = 1;
-    let searchSectionTransform = 0;
+    // 只控制搜索区域的完全显示/隐藏状态，使用CSS类统一控制过渡效果
+    // 简化逻辑，避免iOS上的兼容性问题
     let isSearchBarFullyHidden = false;
     
-    if (scrollTop > 50) {
-      // 当滚动距离超过50rpx时，开始逐渐隐藏
-      const hideProgress = Math.min((scrollTop - 50) / 150, 1); // 0-1的隐藏进度，延长隐藏过程
-      searchSectionOpacity = 1 - hideProgress;
-      searchSectionTransform = -20 * hideProgress;
-      
-      // 当隐藏进度达到100%时，添加完全隐藏类
-      if (hideProgress >= 1) {
-        isSearchBarFullyHidden = true;
-      }
+    // 增加iOS兼容性处理，使用更简单的触发逻辑
+    if (scrollTop > 150) {
+      // 当滚动距离超过150rpx时，完全隐藏搜索区域
+      isSearchBarFullyHidden = true;
     }
     
-    // 当滚动回到顶部时，重置所有状态
-    if (scrollTop <= 50) {
-      searchSectionOpacity = 1;
-      searchSectionTransform = 0;
+    // 当滚动回到顶部时，显示搜索区域
+    if (scrollTop <= 100) {
       isSearchBarFullyHidden = false;
     }
     
-    // 更新搜索框状态和样式
+    // 更新搜索框状态
     this.setData({
-      searchSectionOpacity: searchSectionOpacity,
-      searchSectionTransform: searchSectionTransform,
       isSearchBarFullyHidden: isSearchBarFullyHidden,
       lastScrollTop: scrollTop
     });
diff --git a/pages/index/index.wxml b/pages/index/index.wxml
index 591b201..957e915 100644
--- a/pages/index/index.wxml
+++ b/pages/index/index.wxml
@@ -4,10 +4,10 @@
     class="top-section {{isSearchBarFullyHidden ? 'top-hidden' : ''}}"
   >
     <!-- 标题 -->
-    <view class="title" style="opacity: {{searchSectionOpacity}}; transform: translateY({{searchSectionTransform}}rpx);">专业的鸡蛋交易平台</view>
+    <view class="title">专业的鸡蛋交易平台</view>
     
     <!-- 搜索区域 -->
-    <view class="search-section" style="opacity: {{searchSectionOpacity}}; transform: translateY({{searchSectionTransform}}rpx);">
+    <view class="search-section">
       <view class="search-bar">
         <view class="search-input-wrapper">
           <!-- 将地区选择器放在最左边 -->
diff --git a/pages/index/index.wxss b/pages/index/index.wxss
index 1acdb13..746af40 100644
--- a/pages/index/index.wxss
+++ b/pages/index/index.wxss
@@ -25,11 +25,13 @@ page {
   padding: 10rpx 0;
   margin-bottom: 20rpx;
   overflow: hidden;
-  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
+  transition: max-height 0.4s ease-in-out, opacity 0.4s ease-in-out, transform 0.4s ease-in-out, margin-bottom 0.4s ease-in-out, padding 0.4s ease-in-out;
+  -webkit-transition: max-height 0.4s ease-in-out, opacity 0.4s ease-in-out, -webkit-transform 0.4s ease-in-out, margin-bottom 0.4s ease-in-out, padding 0.4s ease-in-out;
   will-change: opacity, transform, max-height, margin;
   max-height: 200rpx;
   opacity: 1;
   transform: translateY(0);
+  -webkit-transform: translateY(0);
 }
 
 /* 顶部搜索区域完全隐藏状态 - 用于平滑收缩高度 */
@@ -40,6 +42,7 @@ page {
   pointer-events: none;
   opacity: 0;
   transform: translateY(-20rpx);
+  -webkit-transform: translateY(-20rpx);
 }
 
 /* 标题样式 */