diff --git a/app/Builders/ConsultList.php b/app/Builders/ConsultList.php
index 2223f559..44aa3f7e 100644
--- a/app/Builders/ConsultList.php
+++ b/app/Builders/ConsultList.php
@@ -73,7 +73,7 @@ class ConsultList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/CourseFavoriteList.php b/app/Builders/CourseFavoriteList.php
index a516a3a4..2714c9af 100644
--- a/app/Builders/CourseFavoriteList.php
+++ b/app/Builders/CourseFavoriteList.php
@@ -45,7 +45,7 @@ class CourseFavoriteList extends Builder
 
         $courses = $courseRepo->findByIds($ids, $columns);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
@@ -69,7 +69,7 @@ class CourseFavoriteList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/CourseList.php b/app/Builders/CourseList.php
index 667de997..74f4430b 100644
--- a/app/Builders/CourseList.php
+++ b/app/Builders/CourseList.php
@@ -61,7 +61,7 @@ class CourseList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/CourseTopicList.php b/app/Builders/CourseTopicList.php
index 0d7ebd46..e90e367f 100644
--- a/app/Builders/CourseTopicList.php
+++ b/app/Builders/CourseTopicList.php
@@ -45,7 +45,7 @@ class CourseTopicList extends Builder
 
         $courses = $courseRepo->findByIds($ids, $columns);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/CourseUserList.php b/app/Builders/CourseUserList.php
index b1579725..1b735e69 100644
--- a/app/Builders/CourseUserList.php
+++ b/app/Builders/CourseUserList.php
@@ -45,7 +45,7 @@ class CourseUserList extends Builder
 
         $courses = $courseRepo->findByIds($ids, $columns);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
@@ -66,7 +66,7 @@ class CourseUserList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/DanmuList.php b/app/Builders/DanmuList.php
index 59fa36cb..49706caa 100644
--- a/app/Builders/DanmuList.php
+++ b/app/Builders/DanmuList.php
@@ -84,7 +84,7 @@ class DanmuList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/ImFriendUserList.php b/app/Builders/ImFriendUserList.php
index 50d69ce7..c5ed65dd 100644
--- a/app/Builders/ImFriendUserList.php
+++ b/app/Builders/ImFriendUserList.php
@@ -31,7 +31,7 @@ class ImFriendUserList extends Builder
 
         $users = $userRepo->findByIds($ids, $columns);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/ImGroupList.php b/app/Builders/ImGroupList.php
index 39316477..a21b9648 100644
--- a/app/Builders/ImGroupList.php
+++ b/app/Builders/ImGroupList.php
@@ -55,7 +55,7 @@ class ImGroupList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/ImGroupUserList.php b/app/Builders/ImGroupUserList.php
index dafe443f..917eecd6 100644
--- a/app/Builders/ImGroupUserList.php
+++ b/app/Builders/ImGroupUserList.php
@@ -40,7 +40,7 @@ class ImGroupUserList extends Builder
 
         $users = $userRepo->findByIds($ids, $columns);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
@@ -64,7 +64,7 @@ class ImGroupUserList extends Builder
 
         $users = $this->getGroupOwners($groups->toArray());
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/ImMessageList.php b/app/Builders/ImMessageList.php
index 0c394cc6..3b7b921f 100644
--- a/app/Builders/ImMessageList.php
+++ b/app/Builders/ImMessageList.php
@@ -26,7 +26,7 @@ class ImMessageList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/OrderList.php b/app/Builders/OrderList.php
index 5a5a2ff6..2efcc4ba 100644
--- a/app/Builders/OrderList.php
+++ b/app/Builders/OrderList.php
@@ -12,7 +12,7 @@ class OrderList extends Builder
 
     public function __construct()
     {
-        $this->imgBaseUrl = kg_ss_url();
+        $this->imgBaseUrl = kg_cos_url();
     }
 
     /**
diff --git a/app/Builders/ReviewList.php b/app/Builders/ReviewList.php
index e16f430b..aa4aa766 100644
--- a/app/Builders/ReviewList.php
+++ b/app/Builders/ReviewList.php
@@ -55,7 +55,7 @@ class ReviewList extends Builder
 
         $users = $userRepo->findByIds($ids, ['id', 'name', 'avatar']);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
diff --git a/app/Builders/UserList.php b/app/Builders/UserList.php
index 4731773e..42abfa97 100644
--- a/app/Builders/UserList.php
+++ b/app/Builders/UserList.php
@@ -10,7 +10,7 @@ class UserList extends Builder
 
     public function handleUsers(array $users)
     {
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         foreach ($users as $key => $user) {
             $users[$key]['avatar'] = $baseUrl . $user['avatar'];
diff --git a/app/Http/Admin/Services/Nav.php b/app/Http/Admin/Services/Nav.php
index a04d81e9..78c6e215 100644
--- a/app/Http/Admin/Services/Nav.php
+++ b/app/Http/Admin/Services/Nav.php
@@ -45,7 +45,7 @@ class Nav extends Service
 
         return $navRepo->findAll([
             'parent_id' => $parentId,
-            'published' => 1,
+            'deleted' => 0,
         ]);
     }
 
diff --git a/app/Http/Desktop/Services/Im.php b/app/Http/Desktop/Services/Im.php
index 251e0e2e..3e848b1d 100644
--- a/app/Http/Desktop/Services/Im.php
+++ b/app/Http/Desktop/Services/Im.php
@@ -59,7 +59,7 @@ class Im extends Service
             return [];
         }
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $result = [];
 
@@ -252,7 +252,7 @@ class Im extends Service
 
         $users = $userRepo->findByIds($ids);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $mapping = [];
 
@@ -303,7 +303,7 @@ class Im extends Service
 
         $groups = $groupRepo->findByIds($ids);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $mapping = [];
 
diff --git a/app/Http/Desktop/Services/ImGroup.php b/app/Http/Desktop/Services/ImGroup.php
index ac3d9c4c..c6dd1472 100644
--- a/app/Http/Desktop/Services/ImGroup.php
+++ b/app/Http/Desktop/Services/ImGroup.php
@@ -188,7 +188,7 @@ class ImGroup extends Service
 
         $users = $builder->getUsers($groups);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $items = [];
 
diff --git a/app/Library/Helper.php b/app/Library/Helper.php
index 5dd4b3b1..09b28cd5 100644
--- a/app/Library/Helper.php
+++ b/app/Library/Helper.php
@@ -172,7 +172,7 @@ function kg_default_cover_path()
  *
  * @return string
  */
-function kg_ss_url()
+function kg_cos_url()
 {
     $storage = new StorageService();
 
@@ -186,7 +186,7 @@ function kg_ss_url()
  * @param string $style
  * @return string
  */
-function kg_ss_img_url($path, $style = null)
+function kg_cos_img_url($path, $style = null)
 {
     if (!$path) return '';
 
@@ -206,11 +206,11 @@ function kg_ss_img_url($path, $style = null)
  * @param string $style
  * @return string
  */
-function kg_ss_avatar_url($path, $style = null)
+function kg_cos_avatar_url($path, $style = null)
 {
     $path = $path ?: kg_default_avatar_path();
 
-    return kg_ss_img_url($path, $style);
+    return kg_cos_img_url($path, $style);
 }
 
 /**
@@ -220,11 +220,11 @@ function kg_ss_avatar_url($path, $style = null)
  * @param string $style
  * @return string
  */
-function kg_ss_cover_url($path, $style = null)
+function kg_cos_cover_url($path, $style = null)
 {
     $path = $path ?: kg_default_cover_path();
 
-    return kg_ss_img_url($path, $style);
+    return kg_cos_img_url($path, $style);
 }
 
 /**
diff --git a/app/Models/Carousel.php b/app/Models/Carousel.php
index 91195f96..4c7d29e2 100644
--- a/app/Models/Carousel.php
+++ b/app/Models/Carousel.php
@@ -158,7 +158,7 @@ class Carousel extends Model
     public function afterFetch()
     {
         if (!Text::startsWith($this->cover, 'http')) {
-            $this->cover = kg_ss_cover_url($this->cover);
+            $this->cover = kg_cos_cover_url($this->cover);
         }
 
         if (is_string($this->style) && !empty($this->style)) {
diff --git a/app/Models/Course.php b/app/Models/Course.php
index 360fd328..6da3c946 100644
--- a/app/Models/Course.php
+++ b/app/Models/Course.php
@@ -338,7 +338,7 @@ class Course extends Model
         $this->score = (float)$this->score;
 
         if (!Text::startsWith($this->cover, 'http')) {
-            $this->cover = kg_ss_cover_url($this->cover);
+            $this->cover = kg_cos_cover_url($this->cover);
         }
 
         if (is_string($this->attrs) && !empty($this->attrs)) {
diff --git a/app/Models/ImGroup.php b/app/Models/ImGroup.php
index 946df252..f93672cd 100644
--- a/app/Models/ImGroup.php
+++ b/app/Models/ImGroup.php
@@ -156,7 +156,7 @@ class ImGroup extends Model
     public function afterFetch()
     {
         if (!Text::startsWith($this->avatar, 'http')) {
-            $this->avatar = kg_ss_avatar_url($this->avatar);
+            $this->avatar = kg_cos_avatar_url($this->avatar);
         }
     }
 
diff --git a/app/Models/ImUser.php b/app/Models/ImUser.php
index 9b4ed69f..b70cfde7 100644
--- a/app/Models/ImUser.php
+++ b/app/Models/ImUser.php
@@ -133,7 +133,7 @@ class ImUser extends Model
     public function afterFetch()
     {
         if (!Text::startsWith($this->avatar, 'http')) {
-            $this->avatar = kg_ss_avatar_url($this->avatar);
+            $this->avatar = kg_cos_avatar_url($this->avatar);
         }
     }
 
diff --git a/app/Models/User.php b/app/Models/User.php
index 4553cf2c..62e9a3aa 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -221,7 +221,7 @@ class User extends Model
     public function afterFetch()
     {
         if (!Text::startsWith($this->avatar, 'http')) {
-            $this->avatar = kg_ss_avatar_url($this->avatar);
+            $this->avatar = kg_cos_avatar_url($this->avatar);
         }
     }
 
diff --git a/app/Providers/Volt.php b/app/Providers/Volt.php
index 835c7af8..dd121c68 100644
--- a/app/Providers/Volt.php
+++ b/app/Providers/Volt.php
@@ -46,8 +46,8 @@ class Volt extends Provider
                 return 'kg_js_include(' . $resolvedArgs . ')';
             });
 
-            $compiler->addFunction('ss_img_url', function ($resolvedArgs) {
-                return 'kg_ss_img_url(' . $resolvedArgs . ')';
+            $compiler->addFunction('cos_img_url', function ($resolvedArgs) {
+                return 'kg_cos_img_url(' . $resolvedArgs . ')';
             });
 
             $compiler->addFunction('substr', function ($resolvedArgs) {
diff --git a/app/Services/Frontend/Course/CourseList.php b/app/Services/Frontend/Course/CourseList.php
index 35e3b60a..11492e1e 100644
--- a/app/Services/Frontend/Course/CourseList.php
+++ b/app/Services/Frontend/Course/CourseList.php
@@ -57,7 +57,7 @@ class CourseList extends FrontendService
 
         $items = [];
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         foreach ($courses as $course) {
 
diff --git a/app/Services/Frontend/My/GroupList.php b/app/Services/Frontend/My/GroupList.php
index e399cad2..effae3b1 100644
--- a/app/Services/Frontend/My/GroupList.php
+++ b/app/Services/Frontend/My/GroupList.php
@@ -62,7 +62,7 @@ class GroupList extends FrontendService
 
         $users = $builder->getUsers($groups);
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $items = [];
 
diff --git a/app/Services/Frontend/My/ProfileInfo.php b/app/Services/Frontend/My/ProfileInfo.php
index 7bf92074..9de15216 100644
--- a/app/Services/Frontend/My/ProfileInfo.php
+++ b/app/Services/Frontend/My/ProfileInfo.php
@@ -17,7 +17,7 @@ class ProfileInfo extends FrontendService
 
     protected function handleUser(UserModel $user)
     {
-        $user->avatar = kg_ss_avatar_url($user->avatar);
+        $user->avatar = kg_cos_avatar_url($user->avatar);
 
         $user->area = $this->handleArea($user->area);
 
diff --git a/app/Services/Frontend/Order/OrderInfo.php b/app/Services/Frontend/Order/OrderInfo.php
index cad86657..89361b33 100644
--- a/app/Services/Frontend/Order/OrderInfo.php
+++ b/app/Services/Frontend/Order/OrderInfo.php
@@ -91,14 +91,14 @@ class OrderInfo extends FrontendService
 
     protected function handleCourseInfo($itemInfo)
     {
-        $itemInfo['course']['cover'] = kg_ss_cover_url($itemInfo['course']['cover']);
+        $itemInfo['course']['cover'] = kg_cos_cover_url($itemInfo['course']['cover']);
 
         return $itemInfo;
     }
 
     protected function handlePackageInfo($itemInfo)
     {
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         foreach ($itemInfo['courses'] as &$course) {
             $course['cover'] = $baseUrl . $course['cover'];
diff --git a/app/Services/Frontend/Search/Course.php b/app/Services/Frontend/Search/Course.php
index 4784b38c..3bba34c1 100644
--- a/app/Services/Frontend/Search/Course.php
+++ b/app/Services/Frontend/Search/Course.php
@@ -55,7 +55,12 @@ class Course extends FrontendService
 
         $items = [];
 
+        $baseUrl = kg_cos_url();
+
         foreach ($pager->items as $item) {
+
+            $item['cover'] = $baseUrl . $item['cover'];
+
             $items[] = [
                 'id' => (int)$item['id'],
                 'title' => $item['title'],
diff --git a/app/Services/Frontend/Search/CourseHotQuery.php b/app/Services/Frontend/Search/CourseHotQuery.php
deleted file mode 100644
index c01481b9..00000000
--- a/app/Services/Frontend/Search/CourseHotQuery.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-namespace App\Services\Frontend\Search;
-
-use App\Services\Frontend\Service as FrontendService;
-use App\Services\Search\CourseSearcher as CourseSearcherService;
-
-class CourseHotQuery extends FrontendService
-{
-
-    public function handle($limit = 10, $type = 'total')
-    {
-        $searcher = new CourseSearcherService();
-
-        return $searcher->getHotQuery($limit, $type);
-    }
-
-}
diff --git a/app/Services/Frontend/Search/CourseList.php b/app/Services/Frontend/Search/CourseList.php
deleted file mode 100644
index cdfe4cd9..00000000
--- a/app/Services/Frontend/Search/CourseList.php
+++ /dev/null
@@ -1,68 +0,0 @@
-<?php
-
-namespace App\Services\Frontend\Search;
-
-use App\Library\Paginator\Adapter\XunSearch as XunSearchPaginator;
-use App\Library\Paginator\Query as PagerQuery;
-use App\Services\Frontend\Service as FrontendService;
-use App\Services\Search\CourseSearcher as CourseSearcherService;
-
-class CourseList extends FrontendService
-{
-
-    public function handle()
-    {
-        $pagerQuery = new PagerQuery();
-
-        $params = $pagerQuery->getParams();
-        $page = $pagerQuery->getPage();
-        $limit = $pagerQuery->getLimit();
-
-        $courseSearcher = new CourseSearcherService();
-
-        $paginator = new XunSearchPaginator([
-            'xs' => $courseSearcher->getXS(),
-            'highlight' => $courseSearcher->getHighlightFields(),
-            'query' => $params['query'],
-            'page' => $page,
-            'limit' => $limit,
-        ]);
-
-        $pager = $paginator->getPaginate();
-
-        return $this->handleCourses($pager);
-    }
-
-    public function handleCourses($pager)
-    {
-        if ($pager->total_items == 0) {
-            return $pager;
-        }
-
-        $items = [];
-
-        foreach ($pager->items as $course) {
-            $items[] = [
-                'id' => (int)$course['id'],
-                'title' => $course['title'],
-                'cover' => $course['cover'],
-                'summary' => $course['summary'],
-                'market_price' => (float)$course['market_price'],
-                'vip_price' => (float)$course['vip_price'],
-                'model' => $course['model'],
-                'level' => $course['level'],
-                'user_count' => (int)$course['user_count'],
-                'lesson_count' => (int)$course['lesson_count'],
-                'review_count' => (int)$course['review_count'],
-                'favorite_count' => (int)$course['favorite_count'],
-                'teacher' => json_decode($course['teacher']),
-                'category' => json_decode($course['category']),
-            ];
-        }
-
-        $pager->items = $items;
-
-        return $pager;
-    }
-
-}
diff --git a/app/Services/Frontend/Search/CourseRelatedQuery.php b/app/Services/Frontend/Search/CourseRelatedQuery.php
deleted file mode 100644
index 65d5306b..00000000
--- a/app/Services/Frontend/Search/CourseRelatedQuery.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-namespace App\Services\Frontend\Search;
-
-use App\Services\Frontend\Service as FrontendService;
-use App\Services\Search\CourseSearcher as CourseSearcherService;
-
-class CourseRelatedQuery extends FrontendService
-{
-
-    public function handle($query, $limit = 10)
-    {
-        $searcher = new CourseSearcherService();
-
-        return $searcher->getRelatedQuery($query, $limit);
-    }
-
-}
diff --git a/app/Services/Frontend/Search/Group.php b/app/Services/Frontend/Search/Group.php
index f8e00272..85ca0d7f 100644
--- a/app/Services/Frontend/Search/Group.php
+++ b/app/Services/Frontend/Search/Group.php
@@ -55,7 +55,12 @@ class Group extends FrontendService
 
         $items = [];
 
+        $baseUrl = kg_cos_url();
+
         foreach ($pager->items as $item) {
+
+            $item['avatar'] = $baseUrl . $item['avatar'];
+
             $items[] = [
                 'id' => (int)$item['id'],
                 'type' => $item['type'],
diff --git a/app/Services/Frontend/Search/User.php b/app/Services/Frontend/Search/User.php
index 1bc4b312..73bd85b4 100644
--- a/app/Services/Frontend/Search/User.php
+++ b/app/Services/Frontend/Search/User.php
@@ -55,7 +55,12 @@ class User extends FrontendService
 
         $items = [];
 
+        $baseUrl = kg_cos_url();
+
         foreach ($pager->items as $item) {
+
+            $item['avatar'] = $baseUrl . $item['avatar'];
+
             $items[] = [
                 'id' => (int)$item['id'],
                 'name' => $item['name'],
diff --git a/app/Services/Frontend/Teacher/TeacherList.php b/app/Services/Frontend/Teacher/TeacherList.php
index 79db1330..b081c486 100644
--- a/app/Services/Frontend/Teacher/TeacherList.php
+++ b/app/Services/Frontend/Teacher/TeacherList.php
@@ -40,7 +40,7 @@ class TeacherList extends FrontendService
 
         $items = [];
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         foreach ($users as $user) {
 
diff --git a/app/Services/Frontend/Teaching/CourseList.php b/app/Services/Frontend/Teaching/CourseList.php
index ae2be19c..140a1db4 100644
--- a/app/Services/Frontend/Teaching/CourseList.php
+++ b/app/Services/Frontend/Teaching/CourseList.php
@@ -33,7 +33,7 @@ class CourseList extends FrontendService
 
         $items = [];
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         foreach ($pager->items->toArray() as $course) {
 
diff --git a/app/Services/Frontend/Vip/CourseList.php b/app/Services/Frontend/Vip/CourseList.php
index 97258237..de4140f4 100644
--- a/app/Services/Frontend/Vip/CourseList.php
+++ b/app/Services/Frontend/Vip/CourseList.php
@@ -37,7 +37,7 @@ class CourseList extends FrontendService
 
         $courses = $pager->items->toArray();
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $items = [];
 
diff --git a/app/Services/Frontend/Vip/UserList.php b/app/Services/Frontend/Vip/UserList.php
index 145c9590..28fc7ecd 100644
--- a/app/Services/Frontend/Vip/UserList.php
+++ b/app/Services/Frontend/Vip/UserList.php
@@ -37,7 +37,7 @@ class UserList extends FrontendService
 
         $users = $pager->items->toArray();
 
-        $baseUrl = kg_ss_url();
+        $baseUrl = kg_cos_url();
 
         $items = [];
 
diff --git a/app/Services/Refund.php b/app/Services/Refund.php
index 8e544a15..124450ea 100644
--- a/app/Services/Refund.php
+++ b/app/Services/Refund.php
@@ -32,7 +32,7 @@ class Refund extends Service
          */
         $itemInfo = $order->item_info;
 
-        $itemInfo['course']['cover'] = kg_ss_cover_url($itemInfo['course']['cover']);
+        $itemInfo['course']['cover'] = kg_cos_cover_url($itemInfo['course']['cover']);
 
         $refundPercent = 0.00;
         $refundAmount = 0.00;
@@ -72,7 +72,7 @@ class Refund extends Service
          */
         foreach ($itemInfo['courses'] as &$course) {
 
-            $course['cover'] = kg_ss_cover_url($course['cover']);
+            $course['cover'] = kg_cos_cover_url($course['cover']);
 
             $refundPercent = 0.00;
             $refundAmount = 0.00;
diff --git a/app/Services/Search/CourseDocument.php b/app/Services/Search/CourseDocument.php
index 81668eea..b4b24cd4 100644
--- a/app/Services/Search/CourseDocument.php
+++ b/app/Services/Search/CourseDocument.php
@@ -63,6 +63,8 @@ class CourseDocument extends Component
             ]);
         }
 
+        $course->cover = CourseModel::getCoverPath($course->cover);
+
         return [
             'id' => $course->id,
             'title' => $course->title,
diff --git a/app/Services/Search/GroupDocument.php b/app/Services/Search/GroupDocument.php
index 0135836e..f3367d1a 100644
--- a/app/Services/Search/GroupDocument.php
+++ b/app/Services/Search/GroupDocument.php
@@ -46,6 +46,8 @@ class GroupDocument extends Component
             ]);
         }
 
+        $group->avatar = GroupModel::getAvatarPath($group->avatar);
+
         return [
             'id' => $group->id,
             'type' => $group->type,
diff --git a/app/Services/Search/UserDocument.php b/app/Services/Search/UserDocument.php
index 795b7fca..f92cc89b 100644
--- a/app/Services/Search/UserDocument.php
+++ b/app/Services/Search/UserDocument.php
@@ -33,6 +33,8 @@ class UserDocument extends Component
      */
     public function formatDocument(UserModel $user)
     {
+        $user->avatar = UserModel::getAvatarPath($user->avatar);
+
         return [
             'id' => $user->id,
             'name' => $user->name,
diff --git a/db/migrations/20200827112717_insert_setting_data.php b/db/migrations/20200827112717_insert_setting_data.php
index a0841441..949f0af7 100644
--- a/db/migrations/20200827112717_insert_setting_data.php
+++ b/db/migrations/20200827112717_insert_setting_data.php
@@ -343,7 +343,7 @@ final class InsertSettingData extends AbstractMigration
             [
                 'section' => 'smser',
                 'item_key' => 'signature',
-                'item_value' => 'abc',
+                'item_value' => '酷瓜云课堂',
             ],
             [
                 'section' => 'smser',