diff --git a/app/index/controller/TopicNas.php b/app/index/controller/TopicNas.php
index 5884aeed..c4315039 100644
--- a/app/index/controller/TopicNas.php
+++ b/app/index/controller/TopicNas.php
@@ -343,8 +343,18 @@ class TopicNas extends Common
             ->language($this->lang_id)
             ->where('category_id', 'IN', array_column($categorys, 'id'))
             ->select();
+        //查询上级id
+        $parent_two = ArticleCategoryModel::parentColumn(array_column($categorys, 'id'))->language($this->lang_id)->column('pid','id');//二级分类id
+        $articles_data = $articles->toArray();
+        foreach ($articles_data as &$v) {
+            $v['pid'] = 0;
+            if ( $parent_two[$v['category_id']] !== $parent ) {
+                $v['pid'] = $v['category_id'];
+                $v['category_id'] = $parent_two[$v['category_id']];
+            }
+        }
 
-        return success('success', $articles->toArray());
+        return success('success', $articles_data);
     }
     
     /**
diff --git a/app/index/model/ArticleCategoryModel.php b/app/index/model/ArticleCategoryModel.php
index b6e43ed0..64f48fd1 100644
--- a/app/index/model/ArticleCategoryModel.php
+++ b/app/index/model/ArticleCategoryModel.php
@@ -56,6 +56,16 @@ class ArticleCategoryModel extends ArticleCategoryBaseModel
         $query->where('pid', '=', $parent);
     }
 
+    // 所属上级分类查询
+    public function scopeParentColumn($query, $parent)
+    {
+        if (is_array($parent)) {
+            $query->where('id', 'IN', $parent);
+            return;
+        }
+        $query->where('id', '=', $parent);
+    }
+
 
     // 所属子分类范围查询
     public function scopeChild($query, $id, $merge_self = false)
diff --git a/app/index/view/mobile/topic_nas/help_detail.html b/app/index/view/mobile/topic_nas/help_detail.html
index ea383098..5273a800 100644
--- a/app/index/view/mobile/topic_nas/help_detail.html
+++ b/app/index/view/mobile/topic_nas/help_detail.html
@@ -73,14 +73,14 @@
                             <li class="two-mues">
                                 <a href="#" class="two-a">
                                     <div><img src="__IMAGES__/nars-jt.png"
-                                              class="arrow {if condition='$ad.id == $Request.get.cid'}rotate{/if}">
+                                              class="arrow {if condition='$ad.id == $Request.get.pid'}rotate{/if}">
                                     </div>
                                     <span>{$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' => $ad.id , 'id' => $ae.id])}"
+                                        <a href="{:url('/index/topic/nas/help_detail', ['cid' => $ac.id ,'pid' => $ad.id, 'id' => $ae.id])}"
                                            style="margin-left:18%;padding: 0.4rem;">{$ae.title}</a>
                                     </li>
                                     {/volist}
diff --git a/app/index/view/pc/topic_nas/help_detail.html b/app/index/view/pc/topic_nas/help_detail.html
index f706b71c..12950c6b 100644
--- a/app/index/view/pc/topic_nas/help_detail.html
+++ b/app/index/view/pc/topic_nas/help_detail.html
@@ -46,12 +46,12 @@
                             {volist name="ac.child" id="ad"}
                             <li class="two-mues">
                                 <a href="#" class="two-a">
-                                    <div class="arrow {if condition='$ad.id == $Request.get.cid'}rotate{/if}"><img src="__IMAGES__/nas-jt.png" class="arrow" /></div>
+                                    <div class="arrow {if condition='$ad.id == $Request.get.pid'}rotate{/if}"><img src="__IMAGES__/nas-jt.png" class="arrow {if condition='$ad.id == $Request.get.pid'}rotate{/if}" /></div>
                                     <span>{$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' => $ad.id, 'id' => $ae.id])}" style="padding-top: 6px;padding-left: 30px;" {eq
+                                    <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>
                                     {/volist}
                                 </ul>
@@ -135,7 +135,7 @@
                             html = '<ul>'
                             $.each(r.data, function (k, v) {
                                 html +=
-                                    '<li><a href="{:url(\'/index/topic/nas/help_detail\')}?cid=' + v.category_id + '&id=' + v.id + '">' + v.title + '</a></li>'
+                                    '<li><a href="{:url(\'/index/topic/nas/help_detail\')}?cid=' + v.category_id + '&id=' + v.id + '&pid=' + v.pid + '">' + v.title + '</a></li>'
                             })
                             html += '</ul>'
                         }