diff --git a/app/index/view/mobile/topic_nas/help_detail.html b/app/index/view/mobile/topic_nas/help_detail.html
index bffd6079..5273a800 100644
--- a/app/index/view/mobile/topic_nas/help_detail.html
+++ b/app/index/view/mobile/topic_nas/help_detail.html
@@ -77,7 +77,7 @@
                                     </div>
                                     <span>{$ad.name}</span>
                                 </a>
-                                <ul class="thress-mues">
+                                <ul class="thress-mues" {if condition='$ad.id == $Request.get.pid' }style="display: block;" {/if}>
                                     {volist name="ad.article" id="ae"}
                                     <li>
                                         <a href="{:url('/index/topic/nas/help_detail', ['cid' => $ac.id ,'pid' => $ad.id, 'id' => $ae.id])}"
diff --git a/app/index/view/pc/topic_nas/help_detail.html b/app/index/view/pc/topic_nas/help_detail.html
index dcdfa3b8..c80f98d0 100644
--- a/app/index/view/pc/topic_nas/help_detail.html
+++ b/app/index/view/pc/topic_nas/help_detail.html
@@ -49,7 +49,7 @@
                                     <div class="arrow {if condition='$ad.id == $Request.get.pid'}rotate{/if}"><img src="__IMAGES__/nas-jt.png" class="arrow" /></div>
                                     <span>{$ad.name}</span>
                                 </a>
-                                <ul class="thress-mues">
+                                <ul class="thress-mues" {if condition='$ad.id == $Request.get.pid' }style="display: block;" {/if}>
                                     {volist name="ad.article" id="ae"}
                                     <li><a href="{:url('/index/topic/nas/help_detail', ['cid' => $ac.id,'pid' => $ad.id, 'id' => $ae.id])}" style="padding-top: 6px;padding-left: 30px;" {eq
                                            name="ae.id" value="$Request.get.id" }class="active" {/eq}>{$ae.title}</a></li>