diff --git a/pages/index/index.js b/pages/index/index.js
index ab9f26e..9be6c95 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 +824,22 @@ 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，不再使用内联样式控制过渡
+    // 所有过渡效果通过CSS类统一控制
     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，完全隐藏并收缩高度
-      if (hideProgress >= 1) {
-        isSearchBarFullyHidden = true;
-      }
+    if (scrollTop > 200) {
+      // 当滚动距离超过200rpx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 <= 150) {
       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 dbc81bb..957e915 100644
--- a/pages/index/index.wxml
+++ b/pages/index/index.wxml
@@ -2,7 +2,6 @@
   <!-- 顶部搜索区域容器 -->
   <view 
     class="top-section {{isSearchBarFullyHidden ? 'top-hidden' : ''}}"
-    style="opacity: {{searchSectionOpacity}}; transform: translateY({{searchSectionTransform}}rpx);"
   >
     <!-- 标题 -->
     <view class="title">专业的鸡蛋交易平台</view>
diff --git a/pages/index/index.wxss b/pages/index/index.wxss
index dd3dcaa..7d15749 100644
--- a/pages/index/index.wxss
+++ b/pages/index/index.wxss
@@ -26,8 +26,11 @@ page {
   margin-bottom: 20rpx;
   overflow: hidden;
   transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
-  will-change: opacity, transform, padding, margin, max-height;
-  max-height: 200rpx; /* 设置一个具体的最大高度，确保过渡效果生效 */
+  will-change: opacity, transform, height;
+  max-height: 200rpx;
+  opacity: 1;
+  transform: translateY(0);
+  height: auto;
 }
 
 /* 顶部搜索区域完全隐藏状态 - 用于平滑收缩高度 */
@@ -37,7 +40,8 @@ page {
   margin-bottom: 0;
   pointer-events: none;
   opacity: 0;
-  transform: translateY(-100%);
+  transform: translateY(-50rpx);
+  height: 0;
 }
 
 /* 标题样式 */