diff --git a/app/index/view/pc/topic_nas/help.html b/app/index/view/pc/topic_nas/help.html
index 4ce86423..8e5cf071 100644
--- a/app/index/view/pc/topic_nas/help.html
+++ b/app/index/view/pc/topic_nas/help.html
@@ -32,7 +32,7 @@
                     </div>
                     <div class="nhlp-tx-list">
                         {volist name="vo.article" id="va" key="index"}
-                        <a class="txrow" href="{:url('/index/topic/nas/help_detail', ['id' => $va.id])}">
+                        <a class="txrow" href="{:url('/index/topic/nas/help_detail', ['cid' => $vo.id, 'id' => $va.id])}">
                             <div class="nhlp-point"></div>
                             <span class="nhlpsp">{$va.title}</span>
                             <span class="narhelpgoimg">
@@ -41,7 +41,7 @@
                         </a>
                         {/volist}
                         {if condition="count($vo.article) >= 3"}
-                        <a class="ckgdbt" href="{:url('/index/topic/nas/help_detail', ['id' => isset($vo.article[0])?$vo.article[0]['id']:0])}">
+                        <a class="ckgdbt" href="{:url('/index/topic/nas/help_detail', ['cid' => $vo.id, 'id' => isset($vo.article[0])?$vo.article[0]['id']:0])}">
                             {:lang_i18n('查看更多')} >
                         </a>
                         {/if}
diff --git a/app/index/view/pc/topic_nas/help_detail.html b/app/index/view/pc/topic_nas/help_detail.html
index c57d5bb3..4f21258d 100644
--- a/app/index/view/pc/topic_nas/help_detail.html
+++ b/app/index/view/pc/topic_nas/help_detail.html
@@ -26,19 +26,21 @@
             <!-- 下拉搜索框 -->
             <div class="dropdown" id="dropdown"></div>
         </div>
-        <!-- 目录-文章详情-锚点定位--->
+        <!-- 目录-文章详情-锚点定位- -->
         <div class="nars-help-content">
-            <!--目录 -->
+            <!-- 目录 -->
             <div class="nars-hlpdt-ml">
                 {notempty name="article_categorys"}
                 <div class="nav-tree">
                     {volist name="article_categorys" id="ac"}
                     <div class="category">
                         <div class="category-title">
-                            <div class="arrow"><img src="__IMAGES__/nas-jt.png" class="arrow" /></div>
+                            <div class="arrow {if condition='$ac.id == $Request.get.cid'}rotate{/if}">
+                                <img src="__IMAGES__/nas-jt.png" class="arrow {if condition='$ac.id == $Request.get.cid'}rotate{/if}" />
+                            </div>
                             <span>{$ac.name}</span>
                         </div>
-                        <ul class="sub-list">
+                        <ul class="sub-list" {if condition='$ac.id == $Request.get.cid'}style="display: block;"{/if}>
                             {volist name="ac.article" id="ar"}
                             <li><a href="{:url('/index/topic/nas/help_detail', ['id' => $ar.id])}" style="padding-top: 6px;">{$ar.title}</a></li>
                             {/volist}