diff --git a/service/Public/Home/Default/Css/Detail.css b/service/Public/Home/Default/Css/Detail.css
index be1d69ce8..238fdbdf7 100644
--- a/service/Public/Home/Default/Css/Detail.css
+++ b/service/Public/Home/Default/Css/Detail.css
@@ -311,6 +311,7 @@ li.am-comment{ width:100%}
 
 @media only screen and (min-width:640px) 
 {
+
 .listMain{padding-top: 10px;}
 /*导航固定*/
 ul.am-tabs-nav.am-nav.am-nav-tabs {margin-right:10px ;margin-left: 10px;width: auto;}
@@ -462,4 +463,13 @@ ul.am-tabs-nav.am-nav.am-nav-tabs {left:20% ;max-width:960px ;margin-right: 0px;
 
     /*导航固定*/
     ul.am-tabs-nav.am-nav.am-nav-tabs {left:auto;right:auto;width:960px ;}
+}
+
+/* 手机模式下 */
+@media only screen and (max-width:640px)
+{
+    .nav.white { display: none; }
+    body {
+        padding-top: 0px;
+    }
 }
\ No newline at end of file
diff --git a/service/Public/Home/Default/Js/Detail.js b/service/Public/Home/Default/Js/Detail.js
index d8c1c78d1..b1aeecb04 100644
--- a/service/Public/Home/Default/Js/Detail.js
+++ b/service/Public/Home/Default/Js/Detail.js
@@ -1502,7 +1502,8 @@ $(document).ready(function() {
                     if (st >= tp) {
                         if (dv.css('position') != 'fixed') dv.css({
                             'position': 'fixed',
-                            top: 53,
+                            top: 0,
+                            left: 0,
                             'z-index': 1000009
                         });