diff --git a/app/index/controller/TopsNas.php b/app/index/controller/TopsNas.php
index 447382c..02f8284 100755
--- a/app/index/controller/TopsNas.php
+++ b/app/index/controller/TopsNas.php
@@ -341,7 +341,7 @@ class TopsNas extends BaseController
         $model = \think\Db::table($sub_query . ' a');
         foreach ($categorys as $key => $val) {
             if ($key == 0) continue;
-            $model->union(function($query) use($val, $limit) {
+            $model->union(function($query) use($key, $val, $limit) {
                 $query->name('article')->field([
                     'id',
                     'cid',
@@ -355,6 +355,8 @@ class TopsNas extends BaseController
                 if (!empty($limit)) {
                     $query->limit($limit);
                 }
+                // 嵌套子查询，解决union没有limit时排序问题
+                $query->table($query->buildSql() . 'a' . $key);
             });
         }
         
diff --git a/app/mobile/controller/TopsNas.php b/app/mobile/controller/TopsNas.php
index e8e15cb..4813d76 100755
--- a/app/mobile/controller/TopsNas.php
+++ b/app/mobile/controller/TopsNas.php
@@ -294,7 +294,7 @@ class TopsNas extends BaseController
         $model = \think\Db::table($sub_query . ' a');
         foreach ($categorys as $key => $val) {
             if ($key == 0) continue;
-            $model->union(function($query) use($val, $limit) {
+            $model->union(function($query) use($key, $val, $limit) {
                 $query->name('article')->field([
                     'id',
                     'cid',
@@ -308,6 +308,8 @@ class TopsNas extends BaseController
                 if (!empty($limit)) {
                     $query->limit($limit);
                 }
+                // 嵌套子查询，解决union没有limit时排序问题
+                $query->table($query->buildSql() . 'a' . $key);
             });
         }
         
diff --git a/app/us/controller/TopsNas.php b/app/us/controller/TopsNas.php
index 0e0e8d5..b6420b7 100755
--- a/app/us/controller/TopsNas.php
+++ b/app/us/controller/TopsNas.php
@@ -123,7 +123,7 @@ class TopsNas extends BaseController
         $model = \think\Db::table($sub_query . ' a');
         foreach ($categorys as $key => $val) {
             if ($key == 0) continue;
-            $model->union(function ($query) use ($val, $limit) {
+            $model->union(function ($query) use ($key, $val, $limit) {
                 $query->name('article')->field([
                         'id',
                         'cid',
@@ -137,6 +137,8 @@ class TopsNas extends BaseController
                 if (!empty($limit)) {
                     $query->limit($limit);
                 }
+                // 嵌套子查询，解决union没有limit时排序问题
+                $query->table($query->buildSql() . 'a' . $key);
             });
         }
 
diff --git a/app/usmobile/controller/TopsNas.php b/app/usmobile/controller/TopsNas.php
index 72cf3c0..99a77f0 100755
--- a/app/usmobile/controller/TopsNas.php
+++ b/app/usmobile/controller/TopsNas.php
@@ -184,7 +184,7 @@ class TopsNas extends BaseController
         $model = \think\Db::table($sub_query . ' a');
         foreach ($categorys as $key => $val) {
             if ($key == 0) continue;
-            $model->union(function ($query) use ($val, $limit) {
+            $model->union(function ($query) use ($key, $val, $limit) {
                 $query->name('article')->field([
                     'id',
                     'cid',
@@ -198,6 +198,8 @@ class TopsNas extends BaseController
                 if (!empty($limit)) {
                     $query->limit($limit);
                 }
+                // 嵌套子查询，解决union没有limit时排序问题
+                $query->table($query->buildSql() . 'a' . $key);
             });
         }