diff --git a/app/Builders/CategoryTreeList.php b/app/Builders/CategoryTreeList.php
index dfb524d1..dbc32de9 100644
--- a/app/Builders/CategoryTreeList.php
+++ b/app/Builders/CategoryTreeList.php
@@ -9,9 +9,9 @@ use Phalcon\Mvc\Model\ResultsetInterface;
 class CategoryTreeList extends Builder
 {
 
-    public function handle()
+    public function handle($type)
     {
-        $topCategories = $this->findChildCategories(0);
+        $topCategories = $this->findChildCategories($type, 0);
 
         if ($topCategories->count() == 0) {
             return [];
@@ -32,7 +32,7 @@ class CategoryTreeList extends Builder
 
     protected function handleChildren(CategoryModel $category)
     {
-        $subCategories = $this->findChildCategories($category->id);
+        $subCategories = $this->findChildCategories($category->type, $category->id);
 
         if ($subCategories->count() == 0) {
             return [];
@@ -51,16 +51,27 @@ class CategoryTreeList extends Builder
     }
 
     /**
-     * @param int $categoryId
+     * @param string $type
+     * @param int $parentId
      * @return ResultsetInterface|Resultset|CategoryModel[]
      */
-    protected function findChildCategories($categoryId = 0)
+    protected function findChildCategories($type = 'course', $parentId = 0)
     {
-        return CategoryModel::query()
-            ->where('parent_id = :parent_id:', ['parent_id' => $categoryId])
-            ->andWhere('published = 1')
-            ->orderBy('priority ASC')
-            ->execute();
+        $query = CategoryModel::query();
+
+        $query->where('published = 1');
+
+        if ($type) {
+            $query->andWhere('type = :type:', ['type' => $type]);
+        }
+
+        if ($parentId) {
+            $query->andWhere('parent_id = :parent_id:', ['parent_id' => $parentId]);
+        }
+
+        $query->orderBy('priority ASC');
+
+        return $query->execute();
     }
 
 }
diff --git a/app/Builders/CourseList.php b/app/Builders/CourseList.php
index 0dd1580d..17659789 100644
--- a/app/Builders/CourseList.php
+++ b/app/Builders/CourseList.php
@@ -3,6 +3,7 @@
 namespace App\Builders;
 
 use App\Caches\CategoryList as CategoryListCache;
+use App\Models\Category as CategoryModel;
 use App\Repos\User as UserRepo;
 
 class CourseList extends Builder
@@ -34,7 +35,7 @@ class CourseList extends Builder
     {
         $cache = new CategoryListCache();
 
-        $items = $cache->get();
+        $items = $cache->get(CategoryModel::TYPE_COURSE);
 
         if (empty($items)) {
             return [];
diff --git a/app/Builders/HelpList.php b/app/Builders/HelpList.php
new file mode 100644
index 00000000..cb9bcfec
--- /dev/null
+++ b/app/Builders/HelpList.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Builders;
+
+use App\Caches\CategoryList as CategoryListCache;
+use App\Models\Category as CategoryModel;
+
+class HelpList extends Builder
+{
+
+    public function handleCategories(array $helps)
+    {
+        $categories = $this->getCategories();
+
+        foreach ($helps as $key => $help) {
+            $helps[$key]['category'] = $categories[$help['category_id']] ?? new \stdClass();
+        }
+
+        return $helps;
+    }
+
+    public function getCategories()
+    {
+        $cache = new CategoryListCache();
+
+        $items = $cache->get(CategoryModel::TYPE_HELP);
+
+        if (!$items) return [];
+
+        $result = [];
+
+        foreach ($items as $item) {
+            $result[$item['id']] = [
+                'id' => $item['id'],
+                'name' => $item['name'],
+            ];
+        }
+
+        return $result;
+    }
+
+}
diff --git a/app/Caches/CategoryList.php b/app/Caches/CategoryList.php
index e73ad4cf..dd60f101 100644
--- a/app/Caches/CategoryList.php
+++ b/app/Caches/CategoryList.php
@@ -15,23 +15,24 @@ class CategoryList extends Cache
         return $this->lifetime;
     }
 
-    public function getKey($id = null)
+    public function getKey($type = null)
     {
-        return 'category_list';
+        return "category_list:{$type}";
     }
 
     /**
-     * @param null $id
+     * @param null $type
      * @return array
      */
-    public function getContent($id = null)
+    public function getContent($type = null)
     {
         /**
          * @var Resultset $categories
          */
         $categories = CategoryModel::query()
             ->columns(['id', 'parent_id', 'name', 'priority', 'level', 'path'])
-            ->where('published = 1')
+            ->where('type = :type:', ['type' => $type])
+            ->andWhere('published = 1')
             ->execute();
 
         if ($categories->count() == 0) {
diff --git a/app/Caches/CategoryTreeList.php b/app/Caches/CategoryTreeList.php
index 32ca33bc..917928b4 100644
--- a/app/Caches/CategoryTreeList.php
+++ b/app/Caches/CategoryTreeList.php
@@ -14,16 +14,16 @@ class CategoryTreeList extends Cache
         return $this->lifetime;
     }
 
-    public function getKey($id = null)
+    public function getKey($type = null)
     {
-        return 'category_tree_list';
+        return "category_tree_list:{$type}";
     }
 
-    public function getContent($id = null)
+    public function getContent($type = null)
     {
         $builder = new CategoryTreeListBuilder();
 
-        $list = $builder->handle();
+        $list = $builder->handle($type);
 
         return $list ?: [];
     }
diff --git a/app/Caches/HelpList.php b/app/Caches/HelpList.php
new file mode 100644
index 00000000..2b4c8ce2
--- /dev/null
+++ b/app/Caches/HelpList.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Category as CategoryModel;
+use App\Models\Help as HelpModel;
+use Phalcon\Mvc\Model\Resultset;
+use Phalcon\Mvc\Model\ResultsetInterface;
+
+class HelpList extends Cache
+{
+
+    protected $lifetime = 365 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return 'help_list';
+    }
+
+    public function getContent($id = null)
+    {
+
+        $categories = $this->findCategories();
+
+        if ($categories->count() == 0) {
+            return [];
+        }
+
+        $result = [];
+
+        foreach ($categories as $category) {
+
+            $item = [];
+
+            $item['category'] = [
+                'id' => $category->id,
+                'name' => $category->name,
+            ];
+
+            $item['list'] = [];
+
+            $helps = $this->findHelps($category->id);
+
+            if ($helps->count() > 0) {
+                foreach ($helps as $help) {
+                    $item['list'][] = [
+                        'id' => $help->id,
+                        'title' => $help->title,
+                    ];
+                }
+            }
+
+            $result[] = $item;
+        }
+
+        return $result;
+    }
+
+    /**
+     * @return ResultsetInterface|Resultset|CategoryModel[]
+     */
+    protected function findCategories()
+    {
+        return CategoryModel::query()
+            ->where('type = :type:', ['type' => CategoryModel::TYPE_HELP])
+            ->andWhere('level = 1 AND published = 1')
+            ->orderBy('priority ASC')
+            ->execute();
+    }
+
+    /**
+     * @param int $categoryId
+     * @return ResultsetInterface|Resultset|CategoryModel[]
+     */
+    protected function findHelps($categoryId)
+    {
+        return HelpModel::query()
+            ->where('category_id = :category_id:', ['category_id' => $categoryId])
+            ->andWhere('published = 1')
+            ->orderBy('priority ASC')
+            ->execute();
+    }
+
+}
diff --git a/app/Caches/IndexFreeCourseList.php b/app/Caches/IndexFreeCourseList.php
index e8efacff..0f4dcc47 100644
--- a/app/Caches/IndexFreeCourseList.php
+++ b/app/Caches/IndexFreeCourseList.php
@@ -84,7 +84,8 @@ class IndexFreeCourseList extends Cache
     protected function findCategories($limit = 5)
     {
         return CategoryModel::query()
-            ->where('level = 1 AND published = 1')
+            ->where('type = :type:', ['type' => CategoryModel::TYPE_COURSE])
+            ->andWhere('level = 1 AND published = 1')
             ->orderBy('priority ASC')
             ->limit($limit)
             ->execute();
diff --git a/app/Caches/IndexNewCourseList.php b/app/Caches/IndexNewCourseList.php
index 728e55a1..76582509 100644
--- a/app/Caches/IndexNewCourseList.php
+++ b/app/Caches/IndexNewCourseList.php
@@ -84,7 +84,8 @@ class IndexNewCourseList extends Cache
     protected function findCategories($limit = 5)
     {
         return CategoryModel::query()
-            ->where('level = 1 AND published = 1')
+            ->where('type = :type:', ['type' => CategoryModel::TYPE_COURSE])
+            ->andWhere('level = 1 AND published = 1')
             ->orderBy('priority ASC')
             ->limit($limit)
             ->execute();
diff --git a/app/Caches/IndexVipCourseList.php b/app/Caches/IndexVipCourseList.php
index f283c50f..e97d1879 100644
--- a/app/Caches/IndexVipCourseList.php
+++ b/app/Caches/IndexVipCourseList.php
@@ -84,7 +84,8 @@ class IndexVipCourseList extends Cache
     protected function findCategories($limit = 5)
     {
         return CategoryModel::query()
-            ->where('level = 1 AND published = 1')
+            ->where('type = :type:', ['type' => CategoryModel::TYPE_COURSE])
+            ->andWhere('level = 1 AND published = 1')
             ->orderBy('priority ASC')
             ->limit($limit)
             ->execute();
diff --git a/app/Http/Admin/Controllers/CategoryController.php b/app/Http/Admin/Controllers/CategoryController.php
index fe5f6b9f..97270fcd 100644
--- a/app/Http/Admin/Controllers/CategoryController.php
+++ b/app/Http/Admin/Controllers/CategoryController.php
@@ -16,12 +16,20 @@ class CategoryController extends Controller
     public function listAction()
     {
         $parentId = $this->request->get('parent_id', 'int', 0);
+        $type = $this->request->get('type', 'string', 'course');
 
         $categoryService = new CategoryService();
 
         $parent = $categoryService->getParentCategory($parentId);
-        $categories = $categoryService->getChildCategories($parentId);
 
+        if ($parent->id > 0) {
+            $type = $parent->type;
+            $categories = $categoryService->getChildCategories($parentId);
+        } else {
+            $categories = $categoryService->getTopCategories($type);
+        }
+
+        $this->view->setVar('type', $type);
         $this->view->setVar('parent', $parent);
         $this->view->setVar('categories', $categories);
     }
@@ -32,12 +40,20 @@ class CategoryController extends Controller
     public function addAction()
     {
         $parentId = $this->request->get('parent_id', 'int', 0);
+        $type = $this->request->get('type', 'string', 'course');
 
         $categoryService = new CategoryService();
 
-        $topCategories = $categoryService->getTopCategories();
+        $parent = $categoryService->getParentCategory($parentId);
 
-        $this->view->setVar('parent_id', $parentId);
+        if ($parent->id > 0) {
+            $type = $parent->type;
+        }
+
+        $topCategories = $categoryService->getTopCategories($type);
+
+        $this->view->setVar('type', $type);
+        $this->view->setVar('parent', $parent);
         $this->view->setVar('top_categories', $topCategories);
     }
 
@@ -52,7 +68,7 @@ class CategoryController extends Controller
 
         $location = $this->url->get(
             ['for' => 'admin.category.list'],
-            ['parent_id' => $category->parent_id]
+            ['type' => $category->type, 'parent_id' => $category->parent_id],
         );
 
         $content = [
@@ -88,7 +104,7 @@ class CategoryController extends Controller
 
         $location = $this->url->get(
             ['for' => 'admin.category.list'],
-            ['parent_id' => $category->parent_id]
+            ['type' => $category->type, 'parent_id' => $category->parent_id],
         );
 
         $content = [
diff --git a/app/Http/Admin/Controllers/Controller.php b/app/Http/Admin/Controllers/Controller.php
index 4a940f6d..2704f7b3 100644
--- a/app/Http/Admin/Controllers/Controller.php
+++ b/app/Http/Admin/Controllers/Controller.php
@@ -53,7 +53,7 @@ class Controller extends \Phalcon\Mvc\Controller
          * 特例白名单
          */
         $whitelist = [
-            'controllers' => ['public', 'index', 'storage', 'vod', 'test', 'xm_course'],
+            'controllers' => ['public', 'index', 'vod', 'test', 'xm_course'],
             'routes' => ['admin.package.guiding'],
         ];
 
diff --git a/app/Http/Admin/Controllers/CourseController.php b/app/Http/Admin/Controllers/CourseController.php
index 6818a763..9bb19235 100644
--- a/app/Http/Admin/Controllers/CourseController.php
+++ b/app/Http/Admin/Controllers/CourseController.php
@@ -10,6 +10,19 @@ use App\Http\Admin\Services\Course as CourseService;
 class CourseController extends Controller
 {
 
+    /**
+     * @Get("/category", name="admin.course.category")
+     */
+    public function categoryAction()
+    {
+        $location = $this->url->get(
+            ['for' => 'admin.category.list'],
+            ['type' => 'course'],
+            );
+
+        return $this->response->redirect($location);
+    }
+
     /**
      * @Get("/search", name="admin.course.search")
      */
diff --git a/app/Http/Admin/Controllers/HelpController.php b/app/Http/Admin/Controllers/HelpController.php
index 42ced0e3..a9431ced 100644
--- a/app/Http/Admin/Controllers/HelpController.php
+++ b/app/Http/Admin/Controllers/HelpController.php
@@ -10,6 +10,19 @@ use App\Http\Admin\Services\Help as HelpService;
 class HelpController extends Controller
 {
 
+    /**
+     * @Get("/category", name="admin.help.category")
+     */
+    public function categoryAction()
+    {
+        $location = $this->url->get(
+            ['for' => 'admin.category.list'],
+            ['type' => 'help'],
+            );
+
+        return $this->response->redirect($location);
+    }
+
     /**
      * @Get("/list", name="admin.help.list")
      */
@@ -27,7 +40,11 @@ class HelpController extends Controller
      */
     public function addAction()
     {
+        $helpService = new HelpService();
 
+        $categories = $helpService->getCategories();
+
+        $this->view->setVar('categories', $categories);
     }
 
     /**
@@ -56,8 +73,11 @@ class HelpController extends Controller
     {
         $helpService = new HelpService;
 
+        $categories = $helpService->getCategories();
+
         $help = $helpService->getHelp($id);
 
+        $this->view->setVar('categories', $categories);
         $this->view->setVar('help', $help);
     }
 
diff --git a/app/Http/Admin/Controllers/TestController.php b/app/Http/Admin/Controllers/TestController.php
index 414c85d5..5a8ede2e 100644
--- a/app/Http/Admin/Controllers/TestController.php
+++ b/app/Http/Admin/Controllers/TestController.php
@@ -8,8 +8,8 @@ use App\Http\Admin\Services\WxpayTest as WxpayTestService;
 use App\Services\Captcha as CaptchaService;
 use App\Services\Live as LiveService;
 use App\Services\Mailer\Test as TestMailerService;
+use App\Services\MyStorage as StorageService;
 use App\Services\Smser\Test as TestSmserService;
-use App\Services\Storage as StorageService;
 use App\Services\Vod as VodService;
 use Phalcon\Mvc\View;
 
@@ -29,16 +29,8 @@ class TestController extends Controller
         $result = [];
 
         $result['hello'] = $storageService->uploadTestFile();
-
-        $avatarPath = public_path('static/admin/img/default_avatar.png');
-        $avatarKey = '/img/avatar/default.png';
-
-        $result['avatar'] = $storageService->putFile($avatarKey, $avatarPath);
-
-        $coverPath = public_path('static/admin/img/default_cover.png');
-        $coverKey = '/img/cover/default.png';
-
-        $result['cover'] = $storageService->putFile($coverKey, $coverPath);
+        $result['avatar'] = $storageService->uploadDefaultAvatarImage();
+        $result['cover'] = $storageService->uploadDefaultCoverImage();
 
         if ($result['hello'] && $result['avatar'] && $result['cover']) {
             return $this->jsonSuccess(['msg' => '上传文件成功，请到控制台确认']);
@@ -176,9 +168,9 @@ class TestController extends Controller
 
         $order = $alipayTestService->createOrder();
         $trade = $alipayTestService->createTrade($order);
-        $qrcodeUrl = $alipayTestService->scan($trade);
+        $qrcode = $alipayTestService->scan($trade);
 
-        if ($order && $trade && $qrcodeUrl) {
+        if ($order && $trade && $qrcode) {
             $this->db->commit();
         } else {
             $this->db->rollback();
@@ -186,7 +178,7 @@ class TestController extends Controller
 
         $this->view->pick('setting/pay_alipay_test');
         $this->view->setVar('sn', $trade->sn);
-        $this->view->setVar('qrcode_url', $qrcodeUrl);
+        $this->view->setVar('qrcode', $qrcode);
     }
 
     /**
@@ -228,9 +220,9 @@ class TestController extends Controller
 
         $order = $wxpayTestService->createOrder();
         $trade = $wxpayTestService->createTrade($order);
-        $qrcodeUrl = $wxpayTestService->scan($trade);
+        $qrcode = $wxpayTestService->scan($trade);
 
-        if ($order && $trade && $qrcodeUrl) {
+        if ($order && $trade && $qrcode) {
             $this->db->commit();
         } else {
             $this->db->rollback();
@@ -238,7 +230,7 @@ class TestController extends Controller
 
         $this->view->pick('setting/pay_wxpay_test');
         $this->view->setVar('sn', $trade->sn);
-        $this->view->setVar('qrcode_url', $qrcodeUrl);
+        $this->view->setVar('qrcode', $qrcode);
     }
 
     /**
diff --git a/app/Http/Admin/Controllers/UploadController.php b/app/Http/Admin/Controllers/UploadController.php
index 6cc30b93..f7ab899f 100644
--- a/app/Http/Admin/Controllers/UploadController.php
+++ b/app/Http/Admin/Controllers/UploadController.php
@@ -2,7 +2,7 @@
 
 namespace App\Http\Admin\Controllers;
 
-use App\Services\Storage as StorageService;
+use App\Services\MyStorage as StorageService;
 
 /**
  * @RoutePrefix("/admin/upload")
@@ -11,7 +11,7 @@ class UploadController extends Controller
 {
 
     /**
-     * @Post("/img/cover", name="admin.upload.cover_img")
+     * @Post("/cover/img", name="admin.upload.cover_img")
      */
     public function uploadCoverImageAction()
     {
@@ -32,7 +32,7 @@ class UploadController extends Controller
     }
 
     /**
-     * @Post("/img/avatar", name="admin.upload.avatar_img")
+     * @Post("/avatar/img", name="admin.upload.avatar_img")
      */
     public function uploadAvatarImageAction()
     {
@@ -53,7 +53,7 @@ class UploadController extends Controller
     }
 
     /**
-     * @Post("/img/editor", name="admin.upload.editor_img")
+     * @Post("/editor/img", name="admin.upload.editor_img")
      */
     public function uploadEditorImageAction()
     {
diff --git a/app/Http/Admin/Services/AuthMenu.php b/app/Http/Admin/Services/AuthMenu.php
index e6d4dc72..fdee1e61 100644
--- a/app/Http/Admin/Services/AuthMenu.php
+++ b/app/Http/Admin/Services/AuthMenu.php
@@ -18,7 +18,9 @@ class AuthMenu extends Component
     public function __construct()
     {
         $this->authUser = $this->getAuthInfo();
+
         $this->authNodes = $this->getAuthNodes();
+
         $this->setOwnedLevelIds();
     }
 
@@ -46,6 +48,7 @@ class AuthMenu extends Component
             foreach ($level['children'] as $key2 => $level2) {
                 foreach ($level2['children'] as $key3 => $level3) {
                     $allowed = ($this->authUser['root'] == 1) || in_array($level3['id'], $this->owned3rdLevelIds);
+                    $params = $level3['params'] ?? [];
                     if ($level3['type'] == 'menu' && $allowed) {
                         $menus[$key]['id'] = $level['id'];
                         $menus[$key]['title'] = $level['title'];
@@ -54,7 +57,7 @@ class AuthMenu extends Component
                         $menus[$key]['children'][$key2]['children'][$key3] = [
                             'id' => $level3['id'],
                             'title' => $level3['title'],
-                            'url' => $this->url->get(['for' => $level3['route']]),
+                            'url' => $this->url->get(['for' => $level3['route']], $params),
                         ];
                     }
                 }
diff --git a/app/Http/Admin/Services/AuthNode.php b/app/Http/Admin/Services/AuthNode.php
index ba6e952c..3a270a6b 100644
--- a/app/Http/Admin/Services/AuthNode.php
+++ b/app/Http/Admin/Services/AuthNode.php
@@ -29,6 +29,12 @@ class AuthNode extends Service
                     'title' => '课程管理',
                     'type' => 'menu',
                     'children' => [
+                        [
+                            'id' => '1-1-0',
+                            'title' => '课程分类',
+                            'type' => 'menu',
+                            'route' => 'admin.course.category',
+                        ],
                         [
                             'id' => '1-1-1',
                             'title' => '课程列表',
@@ -71,12 +77,14 @@ class AuthNode extends Service
                             'title' => '分类列表',
                             'type' => 'menu',
                             'route' => 'admin.category.list',
+                            'params' => ['type' => 'course'],
                         ],
                         [
                             'id' => '1-2-2',
                             'title' => '添加分类',
                             'type' => 'menu',
                             'route' => 'admin.category.add',
+                            'params' => ['type' => 'course'],
                         ],
                         [
                             'id' => '1-2-3',
@@ -196,6 +204,12 @@ class AuthNode extends Service
                     'title' => '帮助管理',
                     'type' => 'menu',
                     'children' => [
+                        [
+                            'id' => '1-6-0',
+                            'title' => '帮助分类',
+                            'type' => 'menu',
+                            'route' => 'admin.help.category',
+                        ],
                         [
                             'id' => '1-6-1',
                             'title' => '帮助列表',
diff --git a/app/Http/Admin/Services/Category.php b/app/Http/Admin/Services/Category.php
index 1cb123fa..7819da30 100644
--- a/app/Http/Admin/Services/Category.php
+++ b/app/Http/Admin/Services/Category.php
@@ -30,19 +30,20 @@ class Category extends Service
         return $parent;
     }
 
-    public function getTopCategories()
+    public function getTopCategories($type)
     {
         $categoryRepo = new CategoryRepo();
 
         return $categoryRepo->findAll([
             'parent_id' => 0,
-            'published' => 1,
+            'deleted' => 0,
+            'type' => $type,
         ]);
     }
 
     public function getChildCategories($parentId)
     {
-        $deleted = $this->request->getQuery('deleted', 'int', 0);
+        $deleted = $this->request->getQuery('deleted', ['int'], 0);
 
         $categoryRepo = new CategoryRepo();
 
@@ -70,6 +71,7 @@ class Category extends Service
             $data['parent_id'] = $parent->id;
         }
 
+        $data['type'] = $validator->checkType($post['type']);
         $data['name'] = $validator->checkName($post['name']);
         $data['priority'] = $validator->checkPriority($post['priority']);
         $data['published'] = $validator->checkPublishStatus($post['published']);
@@ -190,11 +192,11 @@ class Category extends Service
 
         $cache = new CategoryListCache();
 
-        $cache->rebuild();
+        $cache->rebuild($category->type);
 
         $cache = new CategoryTreeListCache();
 
-        $cache->rebuild();
+        $cache->rebuild($category->type);
     }
 
     protected function enableChildCategories($parentId)
diff --git a/app/Http/Admin/Services/Help.php b/app/Http/Admin/Services/Help.php
index 6202c567..b29d8722 100644
--- a/app/Http/Admin/Services/Help.php
+++ b/app/Http/Admin/Services/Help.php
@@ -2,23 +2,48 @@
 
 namespace App\Http\Admin\Services;
 
-use App\Caches\Help as HelpCache;
+use App\Builders\HelpList as HelpListBuilder;
+use App\Caches\HelpList as HelpListCache;
+use App\Models\Category as CategoryModel;
 use App\Models\Help as HelpModel;
+use App\Repos\Category as CategoryRepo;
 use App\Repos\Help as HelpRepo;
 use App\Validators\Help as HelpValidator;
+use Phalcon\Mvc\Model\Resultset;
 
 class Help extends Service
 {
 
+    public function getCategories()
+    {
+        $categoryRepo = new CategoryRepo();
+
+        return $categoryRepo->findTopCategories(CategoryModel::TYPE_HELP);
+    }
+
     public function getHelps()
     {
-        $deleted = $this->request->getQuery('deleted', 'int', 0);
+        $query = $this->request->getQuery();
+
+        $params = [];
+
+        $params['deleted'] = $query['deleted'] ?? 0;
+
+        if (isset($query['category_id'])) {
+            $params['category_id'] = $query['category_id'];
+        }
 
         $helpRepo = new HelpRepo();
 
-        return $helpRepo->findAll([
-            'deleted' => $deleted,
-        ]);
+        $helps = $helpRepo->findAll($params);
+
+        $result = [];
+
+        if ($helps->count() > 0) {
+            $result = $this->handleHelps($helps);
+        }
+
+        return $result;
     }
 
     public function getHelp($id)
@@ -34,16 +59,19 @@ class Help extends Service
 
         $data = [];
 
+        $category = $validator->checkCategory($post['category_id']);
+
         $data['title'] = $validator->checkTitle($post['title']);
         $data['content'] = $validator->checkContent($post['content']);
         $data['priority'] = $validator->checkPriority($post['priority']);
         $data['published'] = $validator->checkPublishStatus($post['published']);
+        $data['category_id'] = $category->id;
 
         $help = new HelpModel();
 
         $help->create($data);
 
-        $this->rebuildHelpCache($help);
+        $this->rebuildHelpListCache();
 
         return $help;
     }
@@ -58,6 +86,11 @@ class Help extends Service
 
         $data = [];
 
+        if (isset($post['category_id'])) {
+            $category = $validator->checkCategory($post['category_id']);
+            $data['category_id'] = $category->id;
+        }
+
         if (isset($post['title'])) {
             $data['title'] = $validator->checkTitle($post['title']);
         }
@@ -76,7 +109,7 @@ class Help extends Service
 
         $help->update($data);
 
-        $this->rebuildHelpCache($help);
+        $this->rebuildHelpListCache();
 
         return $help;
     }
@@ -89,7 +122,7 @@ class Help extends Service
 
         $help->update();
 
-        $this->rebuildHelpCache($help);
+        $this->rebuildHelpListCache();
 
         return $help;
     }
@@ -102,16 +135,16 @@ class Help extends Service
 
         $help->update();
 
-        $this->rebuildHelpCache($help);
+        $this->rebuildHelpListCache();
 
         return $help;
     }
 
-    protected function rebuildHelpCache(HelpModel $help)
+    protected function rebuildHelpListCache()
     {
-        $cache = new HelpCache();
+        $cache = new HelpListCache();
 
-        $cache->rebuild($help->id);
+        $cache->rebuild();
     }
 
     protected function findOrFail($id)
@@ -121,4 +154,23 @@ class Help extends Service
         return $validator->checkHelp($id);
     }
 
+    /**
+     * @param Resultset $helps
+     * @return array|object
+     */
+    protected function handleHelps($helps)
+    {
+        if ($helps->count() == 0) {
+            return [];
+        }
+
+        $builder = new HelpListBuilder();
+
+        $items = $helps->toArray();
+
+        $items = $builder->handleCategories($items);
+
+        return $builder->objects($items);
+    }
+
 }
diff --git a/app/Http/Admin/Services/Role.php b/app/Http/Admin/Services/Role.php
index 89df2ce2..09c1accc 100644
--- a/app/Http/Admin/Services/Role.php
+++ b/app/Http/Admin/Services/Role.php
@@ -151,6 +151,19 @@ class Role extends Service
             $list[] = 'admin.chapter.restore';
         }
 
+        if (in_array('admin.category.list', $routes)) {
+            $list[] = 'admin.course.category';
+            $list[] = 'admin.help.category';
+        }
+
+        if (in_array('admin.course.category', $routes)) {
+            $list[] = 'admin.category.list';
+        }
+
+        if (in_array('admin.help.category', $routes)) {
+            $list[] = 'admin.category.list';
+        }
+
         $list = array_unique($list);
 
         return array_values($list);
diff --git a/app/Http/Admin/Views/audit/list.volt b/app/Http/Admin/Views/audit/list.volt
index 330e7d0a..14c36f5b 100644
--- a/app/Http/Admin/Views/audit/list.volt
+++ b/app/Http/Admin/Views/audit/list.volt
@@ -38,6 +38,7 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set show_url = url({'for':'admin.audit.show','id':item.id}) %}
             <tr>
                 <td>{{ item.user_id }}</td>
                 <td>{{ item.user_name }}</td>
@@ -46,7 +47,7 @@
                 <td>{{ item.req_path }}</td>
                 <td>{{ date('Y-m-d H:i:s',item.create_time) }}</td>
                 <td align="center">
-                    <button class="kg-view layui-btn layui-btn-sm" data-url="{{ url({'for':'admin.audit.show','id':item.id}) }}">浏览</button>
+                    <button class="kg-view layui-btn layui-btn-sm" data-url="{{ show_url }}">浏览</button>
                 </td>
             </tr>
         {% endfor %}
diff --git a/app/Http/Admin/Views/carousel/list.volt b/app/Http/Admin/Views/carousel/list.volt
index eb298074..47adaa8c 100644
--- a/app/Http/Admin/Views/carousel/list.volt
+++ b/app/Http/Admin/Views/carousel/list.volt
@@ -46,18 +46,21 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set edit_url = url({'for':'admin.carousel.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.carousel.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.carousel.delete','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
                 <td>{{ item.title }}</td>
                 <td>{{ target_info(item.target) }}</td>
-                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ url({'for':'admin.carousel.update','id':item.id}) }}"></td>
-                <td><input type="checkbox" name="published" value="1" lay-filter="published" lay-skin="switch" lay-text="是|否" data-url="{{ url({'for':'admin.carousel.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
+                <td><input type="checkbox" name="published" value="1" lay-filter="published" lay-skin="switch" lay-text="是|否" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.carousel.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.carousel.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/category/add.volt b/app/Http/Admin/Views/category/add.volt
index 75fc43a9..f9dcb718 100644
--- a/app/Http/Admin/Views/category/add.volt
+++ b/app/Http/Admin/Views/category/add.volt
@@ -6,14 +6,14 @@
         <fieldset class="layui-elem-field layui-field-title">
             <legend>添加分类</legend>
         </fieldset>
-        {% if parent_id > 0 %}
+        {% if parent.id > 0 %}
             <div class="layui-form-item">
                 <label class="layui-form-label">父级</label>
                 <div class="layui-input-block">
                     <select name="parent_id" lay-verify="required">
                         <option value="">选择父类</option>
                         {% for category in top_categories %}
-                            <option value="{{ category.id }}" {% if category.id == parent_id %}selected{% endif %}>{{ category.name }}</option>
+                            <option value="{{ category.id }}" {% if category.id == parent.id %}selected{% endif %}>{{ category.name }}</option>
                         {% endfor %}
                     </select>
                 </div>
@@ -43,7 +43,8 @@
             <div class="layui-input-block">
                 <button class="layui-btn" lay-submit="true" lay-filter="go">提交</button>
                 <button type="button" class="kg-back layui-btn layui-btn-primary">返回</button>
-                <input type="hidden" name="parent_id" value="{{ parent_id }}">
+                <input type="hidden" name="parent_id" value="{{ parent.id }}">
+                <input type="hidden" name="type" value="{{ type }}">
             </div>
         </div>
     </form>
diff --git a/app/Http/Admin/Views/category/list.volt b/app/Http/Admin/Views/category/list.volt
index a2dbdf29..bd750b69 100644
--- a/app/Http/Admin/Views/category/list.volt
+++ b/app/Http/Admin/Views/category/list.volt
@@ -2,6 +2,9 @@
 
 {% block content %}
 
+    {% set add_category_url = url({'for':'admin.category.add'},{'type':type,'parent_id':parent.id}) %}
+    {% set allow_add_category = (type == 'course' and parent.level < 2) or (type == 'help' and parent.level < 1) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -15,9 +18,11 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.category.add'},{'parent_id':parent.id}) }}">
-                <i class="layui-icon layui-icon-add-1"></i>添加分类
-            </a>
+            {% if allow_add_category %}
+                <a class="layui-btn layui-btn-sm" href="{{ add_category_url }}">
+                    <i class="layui-icon layui-icon-add-1"></i>添加分类
+                </a>
+            {% endif %}
         </div>
     </div>
 
@@ -44,26 +49,32 @@
         </thead>
         <tbody>
         {% for item in categories %}
+            {% set show_child_url = item.type == 'course' and item.level < 2 %}
+            {% set child_url = url({'for':'admin.category.list'},{'type':item.type,'parent_id':item.id}) %}
+            {% set edit_url = url({'for':'admin.category.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.category.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.category.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.category.restore','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
-                {% if item.level < 2 %}
-                    <td><a href="{{ url({'for':'admin.category.list'}) }}?parent_id={{ item.id }}">{{ item.name }}</a></td>
+                {% if show_child_url %}
+                    <td><a href="{{ child_url }}">{{ item.name }}</a></td>
                 {% else %}
                     <td>{{ item.name }}</td>
                 {% endif %}
                 <td><span class="layui-badge layui-bg-gray">{{ item.level }}</span></td>
                 <td><span class="layui-badge layui-bg-gray">{{ item.child_count }}</span></td>
-                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ url({'for':'admin.category.update','id':item.id}) }}"></td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.category.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.category.edit','id':item.id}) }}">编辑</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
                             {% if item.deleted == 0 %}
-                                <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.category.delete','id':item.id}) }}">删除</a></li>
+                                <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                             {% else %}
-                                <li><a href="javascript:" class="kg-restore" data-url="{{ url({'for':'admin.category.restore','id':item.id}) }}">还原</a></li>
+                                <li><a href="javascript:" class="kg-restore" data-url="{{ restore_url }}">还原</a></li>
                             {% endif %}
                         </ul>
                     </div>
diff --git a/app/Http/Admin/Views/chapter/lessons.volt b/app/Http/Admin/Views/chapter/lessons.volt
index 1db88a47..d3573caf 100644
--- a/app/Http/Admin/Views/chapter/lessons.volt
+++ b/app/Http/Admin/Views/chapter/lessons.volt
@@ -2,10 +2,14 @@
 
 {% block content %}
 
+    {% set back_url = url({'for':'admin.course.chapters','id':course.id}) %}
+    {% set add_chapter_url = url({'for':'admin.chapter.add'},{'type':'chapter','course_id':course.id}) %}
+    {% set add_lesson_url = url({'for':'admin.chapter.add'},{'type':'lesson','course_id':course.id,'parent_id':chapter.id}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
-            <a class="kg-back" href="{{ url({'for':'admin.course.chapters','id':course.id}) }}">
+            <a class="kg-back" href="{{ back_url }}">
                 <i class="layui-icon layui-icon-return"></i> 返回
             </a>
             <a><cite>{{ course.title }}</cite></a>
@@ -14,10 +18,10 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.chapter.add'},{'course_id':course.id,'type':'chapter'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_chapter_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加章
             </a>
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.chapter.add'},{'course_id':course.id,'parent_id':chapter.id,'type':'lesson'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_lesson_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加课
             </a>
         </div>
diff --git a/app/Http/Admin/Views/consult/list.volt b/app/Http/Admin/Views/consult/list.volt
index b6e41890..ba6f2e7f 100644
--- a/app/Http/Admin/Views/consult/list.volt
+++ b/app/Http/Admin/Views/consult/list.volt
@@ -44,9 +44,14 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set list_url = url({'for':'admin.consult.list'},{'course_id':item.course.id}) %}
+            {% set edit_url = url({'for':'admin.consult.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.consult.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.consult.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.consult.restore','id':item.id}) %}
             <tr>
                 <td>
-                    <p>课程：<a href="{{ url({'for':'admin.consult.list'},{'course_id':item.course.id}) }}">{{ item.course.title }}</a>{{ private_info(item.private) }}</p>
+                    <p>课程：<a href="{{ list_url }}">{{ item.course.title }}</a>{{ private_info(item.private) }}</p>
                     <p>提问：<a href="javascript:" title="{{ item.question }}">{{ substr(item.question,0,30) }}</a></p>
                     {% if item.answer %}
                         <p>回复：<a href="javascript:" title="{{ item.answer }}">{{ substr(item.answer,0,30) }}</a></p>
@@ -57,17 +62,17 @@
                     <p>编号：{{ item.owner.id }}</p>
                 </td>
                 <td>{{ date('Y-m-d H:i:s',item.create_time) }}</td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.consult.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span>
                         </button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.consult.edit','id':item.id}) }}">编辑</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
                             {% if item.deleted == 0 %}
-                                <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.consult.delete','id':item.id}) }}">删除</a></li>
+                                <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                             {% else %}
-                                <li><a href="javascript:" class="kg-restore" data-url="{{ url({'for':'admin.consult.restore','id':item.id}) }}">还原</a></li>
+                                <li><a href="javascript:" class="kg-restore" data-url="{{ restore_url }}">还原</a></li>
                             {% endif %}
                         </ul>
                     </div>
diff --git a/app/Http/Admin/Views/course/list.volt b/app/Http/Admin/Views/course/list.volt
index facfacc4..05abeb61 100644
--- a/app/Http/Admin/Views/course/list.volt
+++ b/app/Http/Admin/Views/course/list.volt
@@ -28,13 +28,15 @@
 
     {%- macro category_info(category) %}
         {% if category %}
-            分类：<a class="layui-badge layui-bg-gray" href="{{ url({'for':'admin.course.list'},{'category_id':category.id}) }}">{{ category.name }}</a>
+            {% set url = url({'for':'admin.course.list'},{'category_id':category.id}) %}
+            分类：<a class="layui-badge layui-bg-gray" href="{{ url }}">{{ category.name }}</a>
         {% endif %}
     {%- endmacro %}
 
     {%- macro teacher_info(teacher) %}
         {% if teacher %}
-            讲师：<a class="layui-badge layui-bg-gray" href="{{ url({'for':'admin.course.list'},{'teacher_id':teacher.id}) }}">{{ teacher.name }}</a>
+            {% set url = url({'for':'admin.course.list'},{'teacher_id':teacher.id}) %}
+            讲师：<a class="layui-badge layui-bg-gray" href="{{ url }}">{{ teacher.name }}</a>
         {% endif %}
     {%- endmacro %}
 
@@ -75,18 +77,26 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set edit_url = url({'for':'admin.course.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.course.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.course.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.course.restore','id':item.id}) %}
+            {% set catalog_url = url({'for':'admin.course.chapters','id':item.id}) %}
+            {% set student_url = url({'for':'admin.student.list'},{'course_id':item.id}) %}
+            {% set review_url = url({'for':'admin.review.list'},{'course_id':item.id}) %}
+            {% set consult_url = url({'for':'admin.consult.list'},{'course_id':item.id}) %}
             <tr>
                 <td>
-                    <p>标题：<a href="{{ url({'for':'admin.course.chapters','id':item.id}) }}">{{ item.title }}</a> {{ model_info(item.model) }}</p>
+                    <p>标题：<a href="{{ catalog_url }}">{{ item.title }}</a> {{ model_info(item.model) }}</p>
                     <p>{{ category_info(item.category) }}&nbsp;&nbsp;{{ teacher_info(item.teacher) }}&nbsp;&nbsp;{{ level_info(item.level) }}</p>
                 </td>
                 <td>
-                    <a href="{{ url({'for':'admin.course.chapters','id':item.id}) }}">
+                    <a href="{{ catalog_url }}">
                         <span class="layui-badge layui-bg-green">{{ item.lesson_count }}</span>
                     </a>
                 </td>
                 <td>
-                    <a href="{{ url({'for':'admin.student.list'},{'course_id':item.id}) }}">
+                    <a href="{{ student_url }}">
                         <span class="layui-badge layui-bg-green">{{ item.user_count }}</span>
                     </a>
                 </td>
@@ -94,23 +104,23 @@
                     <p>市场：{{ '￥%0.2f'|format(item.market_price) }}</p>
                     <p>会员：{{ '￥%0.2f'|format(item.vip_price) }}</p>
                 </td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.course.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.course.edit','id':item.id}) }}">编辑课程</a></li>
+                            <li><a href="{{ edit_url }}">编辑课程</a></li>
                             {% if item.deleted == 0 %}
-                                <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.course.delete','id':item.id}) }}">删除课程</a></li>
+                                <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除课程</a></li>
                             {% else %}
-                                <li><a href="javascript:" class="kg-restore" data-url="{{ url({'for':'admin.course.restore','id':item.id}) }}">还原课程</a></li>
+                                <li><a href="javascript:" class="kg-restore" data-url="{{ restore_url }}">还原课程</a></li>
                             {% endif %}
                             <hr>
-                            <li><a href="{{ url({'for':'admin.course.chapters','id':item.id}) }}">章节管理</a></li>
-                            <li><a href="{{ url({'for':'admin.student.list'},{'course_id':item.id}) }}">学员管理</a></li>
+                            <li><a href="{{ catalog_url }}">章节管理</a></li>
+                            <li><a href="{{ student_url }}">学员管理</a></li>
                             <hr>
-                            <li><a href="{{ url({'for':'admin.consult.list'}) }}?course_id={{ item.id }}">咨询管理</a></li>
-                            <li><a href="{{ url({'for':'admin.review.list'}) }}?course_id={{ item.id }}">评价管理</a></li>
+                            <li><a href="{{ consult_url }}">咨询管理</a></li>
+                            <li><a href="{{ review_url }}">评价管理</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/group/list.volt b/app/Http/Admin/Views/group/list.volt
index 92834c3c..74d14f62 100644
--- a/app/Http/Admin/Views/group/list.volt
+++ b/app/Http/Admin/Views/group/list.volt
@@ -52,18 +52,21 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set edit_url = url({'for':'admin.group.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.group.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.group.delete','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
                 <td>{{ item.name }} {{ type_info(item.type) }}</td>
                 <td>{{ owner_info(item.owner) }}</td>
                 <td><span class="layui-badge layui-bg-gray">{{ item.user_count }}</span></td>
-                <td><input type="checkbox" name="published" value="1" lay-filter="published" lay-skin="switch" lay-text="是|否" data-url="{{ url({'for':'admin.group.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input type="checkbox" name="published" value="1" lay-filter="published" lay-skin="switch" lay-text="是|否" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.group.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.group.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/help/add.volt b/app/Http/Admin/Views/help/add.volt
index 75f74c39..bd4ce5e2 100644
--- a/app/Http/Admin/Views/help/add.volt
+++ b/app/Http/Admin/Views/help/add.volt
@@ -6,6 +6,17 @@
         <fieldset class="layui-elem-field layui-field-title">
             <legend>添加帮助</legend>
         </fieldset>
+        <div class="layui-form-item">
+            <label class="layui-form-label">分类</label>
+            <div class="layui-input-block">
+                <select name="category_id" lay-verify="required">
+                    <option value="">选择分类</option>
+                    {% for category in categories %}
+                        <option value="{{ category.id }}">{{ category.name }}</option>
+                    {% endfor %}
+                </select>
+            </div>
+        </div>
         <div class="layui-form-item">
             <label class="layui-form-label">标题</label>
             <div class="layui-input-block">
diff --git a/app/Http/Admin/Views/help/edit.volt b/app/Http/Admin/Views/help/edit.volt
index 6bba66bd..4d9ab1d4 100644
--- a/app/Http/Admin/Views/help/edit.volt
+++ b/app/Http/Admin/Views/help/edit.volt
@@ -6,6 +6,17 @@
         <fieldset class="layui-elem-field layui-field-title">
             <legend>编辑帮助</legend>
         </fieldset>
+        <div class="layui-form-item">
+            <label class="layui-form-label">分类</label>
+            <div class="layui-input-block">
+                <select name="category_id" lay-verify="required">
+                    <option value="">选择分类</option>
+                    {% for category in categories %}
+                        <option value="{{ category.id }}" {% if category.id == help.category_id %}selected{% endif %}>{{ category.name }}</option>
+                    {% endfor %}
+                </select>
+            </div>
+        </div>
         <div class="layui-form-item">
             <label class="layui-form-label">标题</label>
             <div class="layui-input-block">
diff --git a/app/Http/Admin/Views/help/list.volt b/app/Http/Admin/Views/help/list.volt
index 525df9e9..60f78ebc 100644
--- a/app/Http/Admin/Views/help/list.volt
+++ b/app/Http/Admin/Views/help/list.volt
@@ -20,17 +20,15 @@
             <col>
             <col>
             <col>
-            <col>
-            <col>
-            <col>
+            <col width="10%">
+            <col width="10%">
             <col width="12%">
         </colgroup>
         <thead>
         <tr>
             <th>编号</th>
             <th>标题</th>
-            <th>创建时间</th>
-            <th>更新时间</th>
+            <th>分类</th>
             <th>排序</th>
             <th>发布</th>
             <th>操作</th>
@@ -38,20 +36,23 @@
         </thead>
         <tbody>
         {% for item in helps %}
+            {% set list_url = url({'for':'admin.help.list'},{'category_id':item.category.id}) %}
+            {% set edit_url = url({'for':'admin.help.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.help.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.help.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.help.restore','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
                 <td>{{ item.title }}</td>
-                <td>{{ date('Y-m-d H:i',item.create_time) }}</td>
-                <td>{{ date('Y-m-d H:i',item.update_time) }}</td>
-                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ url({'for':'admin.help.update','id':item.id}) }}"></td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.help.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}>
-                </td>
+                <td><a href="{{ list_url }}">{{ item.category.name }}</a></td>
+                <td align="center"><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
+                <td align="center"><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.help.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.help.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/nav/list.volt b/app/Http/Admin/Views/nav/list.volt
index fb70ed0d..da35253b 100644
--- a/app/Http/Admin/Views/nav/list.volt
+++ b/app/Http/Admin/Views/nav/list.volt
@@ -18,11 +18,14 @@
         {% endif %}
     {%- endmacro %}
 
+    {% set back_url = url({'for':'admin.nav.list'}) %}
+    {% set add_nav_url = url({'for':'admin.nav.add'},{'parent_id':parent.id}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
             {% if parent.id > 0 %}
-                <a class="kg-back" href="{{ url({'for':'admin.nav.list'}) }}">
+                <a class="kg-back" href="{{ back_url }}">
                     <i class="layui-icon layui-icon-return"></i> 返回
                 </a>
                 <a><cite>{{ parent.name }}</cite></a>
@@ -31,7 +34,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.nav.add'},{'parent_id':parent.id}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_nav_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加导航
             </a>
         </div>
@@ -64,10 +67,15 @@
         </thead>
         <tbody>
         {% for item in navs %}
+            {% set child_url = url({'for':'admin.nav.list'},{'parent_id':item.id}) %}
+            {% set edit_url = url({'for':'admin.nav.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.nav.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.nav.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.nav.restore','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
                 {% if item.position == 'top' and item.level < 2 %}
-                    <td><a href="{{ url({'for':'admin.nav.list'},{'parent_id':item.id}) }}">{{ item.name }}</a></td>
+                    <td><a href="{{ child_url }}">{{ item.name }}</a></td>
                 {% else %}
                     <td>{{ item.name }}</td>
                 {% endif %}
@@ -75,17 +83,17 @@
                 <td><span class="layui-badge layui-bg-gray">{{ item.child_count }}</span></td>
                 <td>{{ position_info(item.position) }}</td>
                 <td>{{ target_info(item.target) }}</td>
-                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ url({'for':'admin.nav.update','id':item.id}) }}"></td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.nav.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input class="layui-input kg-priority" type="text" name="priority" title="数值越小排序越靠前" value="{{ item.priority }}" data-url="{{ update_url }}"></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.nav.edit','id':item.id}) }}">编辑</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
                             {% if item.deleted == 0 %}
-                                <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.nav.delete','id':item.id}) }}">删除</a></li>
+                                <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                             {% else %}
-                                <li><a href="javascript:" class="kg-restore" data-url="{{ url({'for':'admin.nav.restore','id':item.id}) }}">还原</a></li>
+                                <li><a href="javascript:" class="kg-restore" data-url="{{ restore_url }}">还原</a></li>
                             {% endif %}
                         </ul>
                     </div>
diff --git a/app/Http/Admin/Views/order/list.volt b/app/Http/Admin/Views/order/list.volt
index e006c258..ea5b73be 100644
--- a/app/Http/Admin/Views/order/list.volt
+++ b/app/Http/Admin/Views/order/list.volt
@@ -4,6 +4,8 @@
 
     {{ partial('order/macro') }}
 
+    {% set search_url = url({'for':'admin.order.search'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -11,7 +13,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.order.search'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ search_url }}">
                 <i class="layui-icon layui-icon-search"></i>搜索订单
             </a>
         </div>
@@ -38,6 +40,7 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set show_url = url({'for':'admin.order.show','id':item.id}) %}
             <tr>
                 <td>
                     <p>商品：{{ item.subject }} {{ item_type(item.item_type) }}</p>
@@ -51,7 +54,7 @@
                 <td>{{ order_status(item.status) }}</td>
                 <td>{{ date('Y-m-d H:i:s',item.create_time) }}</td>
                 <td align="center">
-                    <a class="layui-btn layui-btn-sm layui-bg-green" href="{{ url({'for':'admin.order.show','id':item.id}) }}">详情</a>
+                    <a class="layui-btn layui-btn-sm layui-bg-green" href="{{ show_url }}">详情</a>
                 </td>
             </tr>
         {% endfor %}
diff --git a/app/Http/Admin/Views/package/list.volt b/app/Http/Admin/Views/package/list.volt
index 58691302..873b9585 100644
--- a/app/Http/Admin/Views/package/list.volt
+++ b/app/Http/Admin/Views/package/list.volt
@@ -2,6 +2,8 @@
 
 {% block content %}
 
+    {% set add_pkg_url = url({'for':'admin.package.add'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -9,7 +11,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.package.add'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_pkg_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加套餐
             </a>
         </div>
@@ -38,19 +40,22 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set edit_url = url({'for':'admin.package.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.package.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.package.delete','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
-                <td><a href="{{ url({'for':'admin.package.edit','id':item.id}) }}">{{ item.title }}</a></td>
+                <td><a href="{{ edit_url }}">{{ item.title }}</a></td>
                 <td><span class="layui-badge layui-bg-gray">{{ item.course_count }}</span></td>
                 <td>{{ '￥%0.2f'|format(item.market_price) }}</td>
                 <td>{{ '￥%0.2f'|format(item.vip_price) }}</td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.package.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.package.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.package.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/page/list.volt b/app/Http/Admin/Views/page/list.volt
index 1d630df4..2548ba57 100644
--- a/app/Http/Admin/Views/page/list.volt
+++ b/app/Http/Admin/Views/page/list.volt
@@ -2,6 +2,8 @@
 
 {% block content %}
 
+    {% set add_page_url = url({'for':'admin.page.add'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -9,7 +11,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.page.add'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_page_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加单页
             </a>
         </div>
@@ -36,19 +38,23 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set show_url = url({'for':'web.page.show','id':item.id}) %}
+            {% set edit_url = url({'for':'admin.page.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.page.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.page.delete','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
-                <td>{{ item.title }}</td>
+                <td><a href="{{ show_url }}" target="_blank">{{ item.title }}</a></td>
                 <td>{{ date('Y-m-d H:i',item.create_time) }}</td>
                 <td>{{ date('Y-m-d H:i',item.update_time) }}</td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.page.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}>
                 </td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.page.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.page.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/refund/list.volt b/app/Http/Admin/Views/refund/list.volt
index b76ab4d6..9ca9bd0b 100644
--- a/app/Http/Admin/Views/refund/list.volt
+++ b/app/Http/Admin/Views/refund/list.volt
@@ -4,6 +4,8 @@
 
     {{ partial('refund/macro') }}
 
+    {% set search_refund_url = url({'for':'admin.refund.search'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -11,7 +13,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.refund.search'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ search_refund_url }}">
                 <i class="layui-icon layui-icon-search"></i>搜索退款
             </a>
         </div>
@@ -38,6 +40,7 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set show_url = url({'for':'admin.refund.show','id':item.id}) %}
             <tr>
                 <td>
                     <p>商品：{{ item.order.subject }}</p>
@@ -51,7 +54,7 @@
                 <td>{{ refund_status(item.status) }}</td>
                 <td>{{ date('Y-m-d H:i:s',item.create_time) }}</td>
                 <td align="center">
-                    <a class="layui-btn layui-btn-sm layui-bg-green" href="{{ url({'for':'admin.refund.show','id':item.id}) }}">详情</a>
+                    <a class="layui-btn layui-btn-sm layui-bg-green" href="{{ show_url }}">详情</a>
                 </td>
             </tr>
         {% endfor %}
diff --git a/app/Http/Admin/Views/review/list.volt b/app/Http/Admin/Views/review/list.volt
index 21890044..4c5378b8 100644
--- a/app/Http/Admin/Views/review/list.volt
+++ b/app/Http/Admin/Views/review/list.volt
@@ -2,6 +2,8 @@
 
 {% block content %}
 
+    {% set search_review_url = url({'for':'admin.review.search'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -13,7 +15,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.review.search'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ search_review_url }}">
                 <i class="layui-icon layui-icon-search"></i>搜索评价
             </a>
         </div>
@@ -38,9 +40,15 @@
         </thead>
         <tbody>
         {% for item in pager.items %}
+            {% set list_by_course_url = url({'for':'admin.review.list'},{'course_id':item.course.id}) %}
+            {% set list_by_owner_url = url({'for':'admin.review.list'},{'owner_id':item.owner.id}) %}
+            {% set edit_url = url({'for':'admin.review.edit','id':item.id}) %}
+            {% set update_url = url({'for':'admin.review.update','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.review.delete','id':item.id}) %}
+            {% set restore_url = url({'for':'admin.review.restore','id':item.id}) %}
             <tr>
                 <td>
-                    <p>课程：<a href="{{ url({'for':'admin.review.list'},{'course_id':item.course.id}) }}">{{ item.course.title }}</a></p>
+                    <p>课程：<a href="{{ list_by_course_url }}">{{ item.course.title }}</a></p>
                     <p>评价：<a href="javascript:" title="{{ item.content }}">{{ substr(item.content,0,30) }}</a></p>
                     <p>时间：{{ date('Y-m-d H:i:s',item.create_time) }}</p>
                 </td>
@@ -50,19 +58,19 @@
                     <p>逻辑清晰：{{ item.rating3 }}</p>
                 </td>
                 <td>
-                    <p>昵称：<a href="{{ url({'for':'admin.review.list'},{'owner_id':item.owner.id}) }}">{{ item.owner.name }}</a></p>
+                    <p>昵称：<a href="{{ list_by_owner_url }}">{{ item.owner.name }}</a></p>
                     <p>编号：{{ item.owner.id }}</p>
                 </td>
-                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ url({'for':'admin.review.update','id':item.id}) }}" {% if item.published == 1 %}checked{% endif %}></td>
+                <td><input type="checkbox" name="published" value="1" lay-skin="switch" lay-text="是|否" lay-filter="published" data-url="{{ update_url }}" {% if item.published == 1 %}checked{% endif %}></td>
                 <td align="center">
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.review.edit','id':item.id}) }}">编辑</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
                             {% if item.deleted == 0 %}
-                                <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.review.delete','id':item.id}) }}">删除</a></li>
+                                <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                             {% else %}
-                                <li><a href="javascript:" class="kg-restore" data-url="{{ url({'for':'admin.review.restore','id':item.id}) }}">还原</a></li>
+                                <li><a href="javascript:" class="kg-restore" data-url="{{ restore_url }}">还原</a></li>
                             {% endif %}
                         </ul>
                     </div>
diff --git a/app/Http/Admin/Views/role/list.volt b/app/Http/Admin/Views/role/list.volt
index 56d6f736..dd1ac1f1 100644
--- a/app/Http/Admin/Views/role/list.volt
+++ b/app/Http/Admin/Views/role/list.volt
@@ -10,6 +10,8 @@
         {% endif %}
     {%- endmacro %}
 
+    {% set add_role_url = url({'for':'admin.role.add'}) %}
+
     <div class="kg-nav">
         <div class="kg-nav-left">
         <span class="layui-breadcrumb">
@@ -17,7 +19,7 @@
         </span>
         </div>
         <div class="kg-nav-right">
-            <a class="layui-btn layui-btn-sm" href="{{ url({'for':'admin.role.add'}) }}">
+            <a class="layui-btn layui-btn-sm" href="{{ add_role_url }}">
                 <i class="layui-icon layui-icon-add-1"></i>添加角色
             </a>
         </div>
@@ -42,12 +44,15 @@
         </thead>
         <tbody>
         {% for item in roles %}
+            {% set user_list_url = url({'for':'admin.user.list'},{'admin_role':item.id}) %}
+            {% set edit_url = url({'for':'admin.role.edit','id':item.id}) %}
+            {% set delete_url = url({'for':'admin.role.delete','id':item.id}) %}
             <tr>
                 <td>{{ item.id }}</td>
                 <td><a href="javascript:" title="{{ item.summary }}">{{ item.name }}</a></td>
                 <td>{{ type_info(item.type) }}</td>
                 <td>
-                    <a href="{{ url({'for':'admin.user.list'},{'admin_role':item.id}) }}">
+                    <a href="{{ user_list_url }}">
                         <span class="layui-badge layui-bg-green">{{ item.user_count }}</span>
                     </a>
                 </td>
@@ -55,8 +60,8 @@
                     <div class="layui-dropdown">
                         <button class="layui-btn layui-btn-sm">操作 <span class="layui-icon layui-icon-triangle-d"></span></button>
                         <ul>
-                            <li><a href="{{ url({'for':'admin.role.edit','id':item.id}) }}">编辑</a></li>
-                            <li><a href="javascript:" class="kg-delete" data-url="{{ url({'for':'admin.role.delete','id':item.id}) }}">删除</a></li>
+                            <li><a href="{{ edit_url }}">编辑</a></li>
+                            <li><a href="javascript:" class="kg-delete" data-url="{{ delete_url }}">删除</a></li>
                         </ul>
                     </div>
                 </td>
diff --git a/app/Http/Admin/Views/setting/pay_alipay_test.volt b/app/Http/Admin/Views/setting/pay_alipay_test.volt
index a6932027..48be53ee 100644
--- a/app/Http/Admin/Views/setting/pay_alipay_test.volt
+++ b/app/Http/Admin/Views/setting/pay_alipay_test.volt
@@ -4,9 +4,9 @@
 
     <div class="kg-qrcode-block">
 
-        {% if qrcode_url %}
+        {% if qrcode %}
             <div id="qrcode">
-                <img class="kg-qrcode" src="{{ qrcode_url }}" alt="二维码图片">
+                <img class="kg-qrcode" src="{{ qrcode }}" alt="二维码图片">
             </div>
             <input type="hidden" name="sn" value="{{ sn }}">
             <div id="success-tips" class="kg-success-tips layui-hide">
@@ -27,7 +27,7 @@
 
 {% block inline_js %}
 
-    {% if qrcode_url %}
+    {% if Code %}
         <script>
 
             layui.use(['jquery'], function () {
diff --git a/app/Http/Admin/Views/setting/pay_wxpay_test.volt b/app/Http/Admin/Views/setting/pay_wxpay_test.volt
index b4475f7c..e6f4e4c8 100644
--- a/app/Http/Admin/Views/setting/pay_wxpay_test.volt
+++ b/app/Http/Admin/Views/setting/pay_wxpay_test.volt
@@ -3,9 +3,9 @@
 {% block contnet %}
 
     <div class="kg-qrcode-block">
-        {% if qrcode_url %}
+        {% if qrcode %}
             <div id="qrcode">
-                <img class="kg-qrcode" src="{{ qrcode_url }}" alt="二维码图片">
+                <img class="kg-qrcode" src="{{ qrcode }}" alt="二维码图片">
             </div>
             <input type="hidden" name="sn" value="{{ sn }}">
             <div id="success-tips" class="kg-success-tips layui-hide">
@@ -25,7 +25,7 @@
 
 {% block inline_js %}
 
-    {% if qrcode_url %}
+    {% if Code %}
         <script>
 
             layui.use(['jquery'], function () {
diff --git a/app/Http/Web/Controllers/Controller.php b/app/Http/Web/Controllers/Controller.php
index f3145ceb..937d8c09 100644
--- a/app/Http/Web/Controllers/Controller.php
+++ b/app/Http/Web/Controllers/Controller.php
@@ -2,9 +2,9 @@
 
 namespace App\Http\Web\Controllers;
 
-use App\Caches\NavTreeList as NavTreeListCache;
+use App\Caches\NavTreeList as NavCache;
 use App\Caches\Setting as SettingCache;
-use App\Library\Seo as Seo;
+use App\Library\Seo as SiteSeo;
 use App\Models\User as UserModel;
 use App\Services\Auth\Web as WebAuth;
 use App\Traits\Response as ResponseTrait;
@@ -15,19 +15,19 @@ class Controller extends \Phalcon\Mvc\Controller
 {
 
     /**
-     * @var Seo
+     * @var SiteSeo
      */
     protected $seo;
 
     /**
      * @var array
      */
-    protected $settings;
+    protected $navs;
 
     /**
      * @var array
      */
-    protected $navs;
+    protected $settings;
 
     /**
      * @var UserModel
@@ -75,16 +75,16 @@ class Controller extends \Phalcon\Mvc\Controller
         return $auth->getCurrentUser();
     }
 
-    protected function getNavs()
-    {
-        $cache = new NavTreeListCache();
-
-        return $cache->get() ?: [];
-    }
-
     protected function getSeo()
     {
-        return new Seo();
+        return new SiteSeo();
+    }
+
+    protected function getNavs()
+    {
+        $cache = new NavCache();
+
+        return $cache->get() ?: [];
     }
 
     protected function getSettings()
diff --git a/app/Http/Web/Controllers/ImController.php b/app/Http/Web/Controllers/ImController.php
index 9fffbce6..1a7b6b96 100644
--- a/app/Http/Web/Controllers/ImController.php
+++ b/app/Http/Web/Controllers/ImController.php
@@ -14,6 +14,14 @@ class ImController extends LayerController
 
     use ResponseTrait;
 
+    /**
+     * @Get("/", name="web.im.index")
+     */
+    public function indexAction()
+    {
+
+    }
+
     /**
      * @Get("/init", name="web.im.init")
      */
@@ -66,9 +74,9 @@ class ImController extends LayerController
     }
 
     /**
-     * @Get("/msg/friend/unread", name="web.im.unread_friend_msg")
+     * @Get("/friend/msg/unread", name="web.im.unread_friend_msg")
      */
-    public function unreadFriendMessagesAction()
+    public function unreadFriendMsgAction()
     {
         $service = new ImService();
 
@@ -78,40 +86,40 @@ class ImController extends LayerController
     }
 
     /**
-     * @Get("/msg/sys/unread", name="web.im.unread_sys_msg")
+     * @Get("/sys/msg/unread", name="web.im.unread_sys_msg")
      */
-    public function unreadSystemMessagesAction()
+    public function unreadSysMsgAction()
     {
         $service = new ImService();
 
-        $count = $service->countUnreadSystemMessages();
+        $count = $service->countUnreadNotices();
 
         return $this->jsonSuccess(['count' => $count]);
     }
 
     /**
-     * @Get("/msg/sys", name="web.im.sys_msg")
+     * @Get("/sys/msg", name="web.im.sys_msg")
      */
-    public function systemMessagesAction()
+    public function sysMsgAction()
     {
         $service = new ImService();
 
-        $pager = $service->getSystemMessages();
+        $pager = $service->getNotices();
 
         $pager->items = kg_array_object($pager->items);
 
-        $this->view->pick('im/sys_messages');
+        $this->view->pick('im/sys_msg');
         $this->view->setVar('pager', $pager);
     }
 
     /**
-     * @Post("/msg/sys/read", name="web.im.read_sys_msg")
+     * @Post("/sys/msg/read", name="web.im.read_sys_msg")
      */
-    public function readSystemMessagesAction()
+    public function readSysMsgAction()
     {
         $service = new ImService();
 
-        $service->readSystemMessages();
+        $service->readNotices();
 
         return $this->jsonSuccess();
     }
@@ -210,21 +218,6 @@ class ImController extends LayerController
         return $this->jsonSuccess();
     }
 
-    /**
-     * @Post("/img/upload", name="web.im.upload_img")
-     */
-    public function uploadImageAction()
-    {
-    }
-
-    /**
-     * @Post("/file/upload", name="web.im.upload_file")
-     */
-    public function uploadFileAction()
-    {
-
-    }
-
     /**
      * @Post("/status/update", name="web.im.update_status")
      */
diff --git a/app/Http/Web/Controllers/ImSummaryController.php b/app/Http/Web/Controllers/ImSummaryController.php
new file mode 100644
index 00000000..069fbd7f
--- /dev/null
+++ b/app/Http/Web/Controllers/ImSummaryController.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Http\Web\Controllers;
+
+use App\Http\Web\Services\ImGroup as ImGroupService;
+use Phalcon\Mvc\View;
+
+/**
+ * @RoutePrefix("/im")
+ */
+class ImSummaryController extends Controller
+{
+
+    /**
+     * @Get("/active/groups", name="web.im.active_groups")
+     */
+    public function activeGroupsAction()
+    {
+        $this->seo->prependTitle('群组');
+    }
+
+    /**
+     * @Get("/active/users", name="web.im.active_users")
+     */
+    public function activeUsersAction()
+    {
+        $this->seo->prependTitle('群组');
+    }
+
+    /**
+     * @Get("/online/users", name="web.im.online_users")
+     */
+    public function onlineUsersAction()
+    {
+        $this->seo->prependTitle('群组');
+    }
+
+    /**
+     * @Get("/pager", name="web.im_group.pager")
+     */
+    public function pagerAction()
+    {
+        $service = new ImGroupService();
+
+        $pager = $service->getGroups();
+        $pager->items = kg_array_object($pager->items);
+        $pager->target = 'group-list';
+
+        $this->view->setRenderLevel(View::LEVEL_ACTION_VIEW);
+        $this->view->pick('im_group/pager');
+        $this->view->setVar('pager', $pager);
+    }
+
+}
diff --git a/app/Http/Web/Controllers/IndexController.php b/app/Http/Web/Controllers/IndexController.php
index e532d71b..eba57d92 100644
--- a/app/Http/Web/Controllers/IndexController.php
+++ b/app/Http/Web/Controllers/IndexController.php
@@ -17,8 +17,8 @@ class IndexController extends Controller
 
         $indexService = new IndexService();
 
-        $this->view->setVar('carousels', $indexService->getCarousels());
         $this->view->setVar('lives', $indexService->getLives());
+        $this->view->setVar('carousels', $indexService->getCarousels());
         $this->view->setVar('new_courses', $indexService->getNewCourses());
         $this->view->setVar('free_courses', $indexService->getFreeCourses());
         $this->view->setVar('vip_courses', $indexService->getVipCourses());
diff --git a/app/Http/Web/Controllers/UploadController.php b/app/Http/Web/Controllers/UploadController.php
index fa929186..398099bd 100644
--- a/app/Http/Web/Controllers/UploadController.php
+++ b/app/Http/Web/Controllers/UploadController.php
@@ -3,7 +3,7 @@
 
 namespace App\Http\Web\Controllers;
 
-use App\Services\Storage as StorageService;
+use App\Services\MyStorage as StorageService;
 
 /**
  * @RoutePrefix("/upload")
@@ -12,7 +12,7 @@ class UploadController extends Controller
 {
 
     /**
-     * @Post("/img/avatar", name="web.upload.avatar_img")
+     * @Post("/avatar/img", name="web.upload.avatar_img")
      */
     public function uploadAvatarImageAction()
     {
@@ -29,4 +29,19 @@ class UploadController extends Controller
         }
     }
 
+    /**
+     * @Post("/im/img", name="web.upload.im_img")
+     */
+    public function uploadImImageAction()
+    {
+    }
+
+    /**
+     * @Post("/im/file", name="web.upload.im_file")
+     */
+    public function uploadImFileAction()
+    {
+
+    }
+
 }
\ No newline at end of file
diff --git a/app/Http/Web/Services/CourseQuery.php b/app/Http/Web/Services/CourseQuery.php
index 2cd729af..ce1b1a4b 100644
--- a/app/Http/Web/Services/CourseQuery.php
+++ b/app/Http/Web/Services/CourseQuery.php
@@ -3,8 +3,10 @@
 namespace App\Http\Web\Services;
 
 use App\Caches\Category as CategoryCache;
+use App\Models\Category as CategoryModel;
 use App\Models\Course as CourseModel;
 use App\Services\Category as CategoryService;
+use App\Validators\CourseQuery as CourseQueryValidator;
 
 class CourseQuery extends Service
 {
@@ -42,7 +44,7 @@ class CourseQuery extends Service
 
         $categoryService = new CategoryService();
 
-        $topCategories = $categoryService->getChildCategories(0);
+        $topCategories = $categoryService->getChildCategories(CategoryModel::TYPE_COURSE, 0);
 
         foreach ($topCategories as $key => $category) {
             $params['tc'] = $category['id'];
@@ -66,7 +68,7 @@ class CourseQuery extends Service
 
         $categoryService = new CategoryService();
 
-        $subCategories = $categoryService->getChildCategories($params['tc']);
+        $subCategories = $categoryService->getChildCategories(CategoryModel::TYPE_COURSE, $params['tc']);
 
         if (empty($subCategories)) {
             return [];
@@ -216,7 +218,7 @@ class CourseQuery extends Service
 
         $params = [];
 
-        $validator = new \App\Validators\CourseQuery();
+        $validator = new CourseQueryValidator();
 
         if (isset($query['tc']) && $query['tc'] != 'all') {
             $validator->checkTopCategory($query['tc']);
diff --git a/app/Http/Web/Services/Im.php b/app/Http/Web/Services/Im.php
index bfdfaa33..25c11c2c 100644
--- a/app/Http/Web/Services/Im.php
+++ b/app/Http/Web/Services/Im.php
@@ -6,14 +6,12 @@ use App\Builders\ImMessageList as ImMessageListBuilder;
 use App\Caches\ImNewGroupList as ImNewGroupListCache;
 use App\Caches\ImNewUserList as ImNewUserListCache;
 use App\Library\Paginator\Query as PagerQuery;
-use App\Models\ImFriendMessage as ImFriendMessageModel;
-use App\Models\ImGroupMessage as ImGroupMessageModel;
+use App\Models\ImMessage as ImMessageModel;
 use App\Models\ImUser as ImUserModel;
-use App\Repos\ImFriendMessage as ImFriendMessageRepo;
 use App\Repos\ImFriendUser as ImFriendUserRepo;
 use App\Repos\ImGroup as ImGroupRepo;
-use App\Repos\ImGroupMessage as ImGroupMessageRepo;
-use App\Repos\ImSystemMessage as ImSystemMessageRepo;
+use App\Repos\ImMessage as ImMessageRepo;
+use App\Repos\ImNotice as ImNoticeRepo;
 use App\Repos\ImUser as ImUserRepo;
 use App\Repos\User as UserRepo;
 use App\Validators\ImFriendUser as ImFriendUserValidator;
@@ -207,16 +205,16 @@ class Im extends Service
         $friendUser->update(['msg_count' => 0]);
     }
 
-    public function countUnreadSystemMessages()
+    public function countUnreadNotices()
     {
         $user = $this->getLoginUser();
 
         $userRepo = new ImUserRepo();
 
-        return $userRepo->countUnreadSystemMessages($user->id);
+        return $userRepo->countUnreadNotices($user->id);
     }
 
-    public function getSystemMessages()
+    public function getNotices()
     {
         $user = $this->getLoginUser();
 
@@ -230,9 +228,9 @@ class Im extends Service
         $page = $pagerQuery->getPage();
         $limit = $pagerQuery->getLimit();
 
-        $messageRepo = new ImSystemMessageRepo();
+        $noticeRepo = new ImNoticeRepo();
 
-        return $messageRepo->paginate($params, $sort, $page, $limit);
+        return $noticeRepo->paginate($params, $sort, $page, $limit);
     }
 
     public function getChatMessages()
@@ -251,23 +249,28 @@ class Im extends Service
         $page = $pagerQuery->getPage();
         $limit = $pagerQuery->getLimit();
 
-        if ($params['type'] == 'friend') {
+        if ($params['type'] == ImMessageModel::TYPE_FRIEND) {
 
-            $params['chat_id'] = ImFriendMessageModel::getChatId($user->id, $params['id']);
+            $chatId = ImMessageModel::getChatId($user->id, $params['id']);
 
-            $messageRepo = new ImFriendMessageRepo();
+            $where = ['chat_id' => $chatId];
 
-            $pager = $messageRepo->paginate($params, $sort, $page, $limit);
+            $messageRepo = new ImMessageRepo();
+
+            $pager = $messageRepo->paginate($where, $sort, $page, $limit);
 
             return $this->handleChatMessagePager($pager);
 
-        } elseif ($params['type'] == 'group') {
+        } elseif ($params['type'] == ImMessageModel::TYPE_GROUP) {
 
-            $params['group_id'] = $params['id'];
+            $where = [
+                'receiver_type' => $params['type'],
+                'receiver_id' => $params['id'],
+            ];
 
-            $messageRepo = new ImGroupMessageRepo();
+            $messageRepo = new ImMessageRepo();
 
-            $pager = $messageRepo->paginate($params, $sort, $page, $limit);
+            $pager = $messageRepo->paginate($where, $sort, $page, $limit);
 
             return $this->handleChatMessagePager($pager);
         }
@@ -351,7 +354,7 @@ class Im extends Service
 
         Gateway::$registerAddress = $this->getRegisterAddress();
 
-        if ($to['type'] == 'friend') {
+        if ($to['type'] == ImMessageModel::TYPE_FRIEND) {
 
             $validator = new ImFriendUserValidator();
 
@@ -359,11 +362,12 @@ class Im extends Service
 
             $online = Gateway::isUidOnline($to['id']);
 
-            $messageModel = new ImFriendMessageModel();
+            $messageModel = new ImMessageModel();
 
             $messageModel->create([
                 'sender_id' => $from['id'],
                 'receiver_id' => $to['id'],
+                'chat_type' => $to['type'],
                 'content' => $from['content'],
                 'viewed' => $online ? 1 : 0,
             ]);
@@ -374,7 +378,7 @@ class Im extends Service
                 $this->incrFriendUserMsgCount($relation);
             }
 
-        } elseif ($to['type'] == 'group') {
+        } elseif ($to['type'] == ImMessageModel::TYPE_GROUP) {
 
             $validator = new ImGroupValidator();
 
@@ -384,11 +388,12 @@ class Im extends Service
 
             $validator->checkGroupUser($group->id, $user->id);
 
-            $messageModel = new ImGroupMessageModel();
+            $messageModel = new ImMessageModel();
 
             $messageModel->create([
-                'group_id' => $to['id'],
                 'sender_id' => $from['id'],
+                'receiver_id' => $to['id'],
+                'chat_type' => $to['type'],
                 'content' => $from['content'],
             ]);
 
@@ -409,13 +414,13 @@ class Im extends Service
         }
     }
 
-    public function readSystemMessages()
+    public function readNotices()
     {
         $user = $this->getLoginUser();
 
         $userRepo = new ImUserRepo();
 
-        $messages = $userRepo->findUnreadSystemMessages($user->id);
+        $messages = $userRepo->findUnreadNotices($user->id);
 
         if ($messages->count() > 0) {
             foreach ($messages as $message) {
diff --git a/app/Http/Web/Services/ImSummary.php b/app/Http/Web/Services/ImSummary.php
new file mode 100644
index 00000000..d61574ae
--- /dev/null
+++ b/app/Http/Web/Services/ImSummary.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace App\Http\Web\Services;
+
+use App\Builders\ImGroupList as ImGroupListBuilder;
+use App\Library\Paginator\Query as PagerQuery;
+use App\Repos\ImGroup as ImGroupRepo;
+
+class ImSummary extends Service
+{
+
+    public function getActiveGroups()
+    {
+        $pagerQuery = new PagerQuery();
+
+        $params = $pagerQuery->getParams();
+
+        $params['published'] = 1;
+
+        $sort = $pagerQuery->getSort();
+        $page = $pagerQuery->getPage();
+        $limit = $pagerQuery->getLimit();
+
+        $groupRepo = new ImGroupRepo();
+
+        $pager = $groupRepo->paginate($params, $sort, $page, $limit);
+
+        return $this->handleGroups($pager);
+    }
+
+    public function getActiveUsers()
+    {
+    }
+
+    public function getOnlineUsers()
+    {
+    }
+
+    protected function handleGroups($pager)
+    {
+        if ($pager->total_items == 0) {
+            return $pager;
+        }
+
+        $builder = new ImGroupListBuilder();
+
+        $groups = $pager->items->toArray();
+
+        $users = $builder->getUsers($groups);
+
+        $baseUrl = kg_ci_base_url();
+
+        $items = [];
+
+        foreach ($groups as $group) {
+
+            $group['avatar'] = $baseUrl . $group['avatar'];
+            $group['owner'] = $users[$group['owner_id']] ?? new \stdClass();
+
+            $items[] = [
+                'id' => $group['id'],
+                'type' => $group['type'],
+                'name' => $group['name'],
+                'avatar' => $group['avatar'],
+                'about' => $group['about'],
+                'user_count' => $group['user_count'],
+                'msg_count' => $group['msg_count'],
+                'owner' => $group['owner'],
+            ];
+        }
+
+        $pager->items = $items;
+
+        return $pager;
+    }
+
+}
diff --git a/app/Http/Web/Services/Trade.php b/app/Http/Web/Services/Trade.php
index ef606c61..14c2db01 100644
--- a/app/Http/Web/Services/Trade.php
+++ b/app/Http/Web/Services/Trade.php
@@ -19,16 +19,16 @@ class Trade extends Service
 
         $trade = $service->handle();
 
-        $qrCodeUrl = $this->getQrCodeUrl($trade);
+        $qrCode = $this->getQrCode($trade);
 
-        if ($trade && $qrCodeUrl) {
+        if ($trade && $qrCode) {
 
             $this->db->commit();
 
             return [
                 'sn' => $trade->sn,
                 'channel' => $trade->channel,
-                'qrcode_url' => $qrCodeUrl,
+                'qrcode' => $qrCode,
             ];
 
         } else {
@@ -39,38 +39,38 @@ class Trade extends Service
         }
     }
 
-    protected function getQrCodeUrl(TradeModel $trade)
+    protected function getQrCode(TradeModel $trade)
     {
-        $qrcodeUrl = null;
+        $qrCode = null;
 
         if ($trade->channel == TradeModel::CHANNEL_ALIPAY) {
-            $qrcodeUrl = $this->getAlipayQrCodeUrl($trade);
+            $qrCode = $this->getAlipayQrCode($trade);
         } elseif ($trade->channel == TradeModel::CHANNEL_WXPAY) {
-            $qrcodeUrl = $this->getWxpayQrCodeUrl($trade);
+            $qrCode = $this->getWxpayQrCode($trade);
         }
 
-        return $qrcodeUrl;
+        return $qrCode;
     }
 
-    protected function getAlipayQrCodeUrl(TradeModel $trade)
+    protected function getAlipayQrCode(TradeModel $trade)
     {
-        $qrCodeUrl = null;
+        $qrCode = null;
 
         $service = new AlipayService();
 
         $text = $service->scan($trade);
 
         if ($text) {
-            $qrCodeUrl = $this->url->get(
+            $qrCode = $this->url->get(
                 ['for' => 'web.qrcode'],
                 ['text' => urlencode($text)]
             );
         }
 
-        return $qrCodeUrl;
+        return $qrCode;
     }
 
-    protected function getWxpayQrCodeUrl(TradeModel $trade)
+    protected function getWxpayQrCode(TradeModel $trade)
     {
         $service = new WxpayService();
 
diff --git a/app/Http/Web/Views/help/index.volt b/app/Http/Web/Views/help/index.volt
index 2eeedc59..97cae244 100644
--- a/app/Http/Web/Views/help/index.volt
+++ b/app/Http/Web/Views/help/index.volt
@@ -9,14 +9,34 @@
         </span>
     </div>
 
-    <div class="page-info wrap">
-        <div class="layui-collapse">
-            {% for help in helps %}
-                <div class="layui-colla-item">
-                    <h2 class="layui-colla-title">{{ help.title }}</h2>
-                    <div class="layui-colla-content layui-show">{{ help.content }}</div>
+    <div class="layout-main">
+        <div class="layout-content">
+            <div class="wrap">
+                <div class="layui-collapse">
+                    {% for item in helps %}
+                        <div class="layui-colla-item">
+                            <h2 class="layui-colla-title">{{ item.category.name }}</h2>
+                            <div class="layui-colla-content layui-show">
+                                <ul class="help-list">
+                                    {% for help in item.list %}
+                                        <li><a href="{{ url({'for':'web.help.show','id':help.id}) }}"><i class="layui-icon layui-icon-right"></i>{{ help.title }}</a></li>
+                                    {% endfor %}
+                                </ul>
+                            </div>
+                        </div>
+                    {% endfor %}
                 </div>
-            {% endfor %}
+            </div>
+        </div>
+        <div class="layout-sidebar">
+            <div class="layui-card">
+                <div class="layui-card-header">意见反馈</div>
+                <div class="layui-card-body">
+                    <form class="layui-form">
+                        <textarea name="content" class="layui-textarea" lay-verify="required"></textarea>
+                    </form>
+                </div>
+            </div>
         </div>
     </div>
 
diff --git a/app/Http/Web/Views/im/sys_messages.volt b/app/Http/Web/Views/im/sys_msg.volt
similarity index 98%
rename from app/Http/Web/Views/im/sys_messages.volt
rename to app/Http/Web/Views/im/sys_msg.volt
index 299487f3..d25989b1 100644
--- a/app/Http/Web/Views/im/sys_messages.volt
+++ b/app/Http/Web/Views/im/sys_msg.volt
@@ -1,4 +1,4 @@
-{%- macro message_info(item) %}
+{%- macro notice_info(item) %}
 
     {% set item_type = item.item_type %}
     {% set item_info = item.item_info %}
@@ -84,7 +84,7 @@
 {% if pager.items %}
     <ul class="layim-msgbox">
         {% for item in pager.items %}
-            {{ message_info(item) }}
+            {{ notice_info(item) }}
         {% endfor %}
     </ul>
 {% endif %}
\ No newline at end of file
diff --git a/app/Library/Helper.php b/app/Library/Helper.php
index 56d1c47c..05f550b4 100644
--- a/app/Library/Helper.php
+++ b/app/Library/Helper.php
@@ -1,5 +1,6 @@
 <?php
 
+use App\Caches\Setting as SettingCache;
 use App\Library\Validators\Common as CommonValidator;
 use App\Services\Storage as StorageService;
 use Koogua\Ip2Region\Searcher as Ip2RegionSearcher;
@@ -129,6 +130,24 @@ function kg_site_base_url()
     return "{$scheme}://{$host}" . rtrim(dirname($path), '/');
 }
 
+/**
+ * 获取站点设置
+ *
+ * @param string $section
+ * @param string $key
+ * @return mixed
+ */
+function kg_site_setting($section, $key = null)
+{
+    $cache = new SettingCache();
+
+    $settings = $cache->get($section);
+
+    if (!$key) return $settings;
+
+    return $settings[$key] ?? null;
+}
+
 /**
  * 获取默认头像路径
  *
diff --git a/app/Models/Category.php b/app/Models/Category.php
index fd6e34ed..b44baddd 100644
--- a/app/Models/Category.php
+++ b/app/Models/Category.php
@@ -28,13 +28,6 @@ class Category extends Model
      */
     public $parent_id;
 
-    /**
-     * 别名
-     *
-     * @var string
-     */
-    public $alias;
-
     /**
      * 类型
      *
@@ -143,4 +136,12 @@ class Category extends Model
         $cache->rebuild();
     }
 
+    public static function types()
+    {
+        return [
+            self::TYPE_COURSE => '课程',
+            self::TYPE_HELP => '帮助',
+        ];
+    }
+
 }
diff --git a/app/Models/Help.php b/app/Models/Help.php
index bb7a8730..c1929d02 100644
--- a/app/Models/Help.php
+++ b/app/Models/Help.php
@@ -16,11 +16,11 @@ class Help extends Model
     public $id;
 
     /**
-     * 别名
+     * 分类编号
      *
-     * @var string
+     * @var int
      */
-    public $alias;
+    public $category_id;
 
     /**
      * 标题
@@ -29,13 +29,6 @@ class Help extends Model
      */
     public $title;
 
-    /**
-     * 关键字
-     *
-     * @var string
-     */
-    public $keywords;
-
     /**
      * 内容
      *
diff --git a/app/Models/HelpCategory.php b/app/Models/HelpCategory.php
deleted file mode 100644
index 3ea5556c..00000000
--- a/app/Models/HelpCategory.php
+++ /dev/null
@@ -1,46 +0,0 @@
-<?php
-
-namespace App\Models;
-
-class HelpCategory extends Model
-{
-
-    /**
-     * 主键编号
-     *
-     * @var int
-     */
-    public $id;
-
-    /**
-     * 帮助编号
-     *
-     * @var int
-     */
-    public $help_id;
-
-    /**
-     * 分类编号
-     *
-     * @var int
-     */
-    public $category_id;
-
-    /**
-     * 创建时间
-     *
-     * @var int
-     */
-    public $create_time;
-
-    public function getSource(): string
-    {
-        return 'kg_help_category';
-    }
-
-    public function beforeCreate()
-    {
-        $this->create_time = time();
-    }
-
-}
diff --git a/app/Models/ImGroupMessage.php b/app/Models/ImGroupMessage.php
deleted file mode 100644
index 4acf6dea..00000000
--- a/app/Models/ImGroupMessage.php
+++ /dev/null
@@ -1,86 +0,0 @@
-<?php
-
-namespace App\Models;
-
-use Phalcon\Mvc\Model\Behavior\SoftDelete;
-
-class ImGroupMessage extends Model
-{
-
-    /**
-     * 主键编号
-     *
-     * @var int
-     */
-    public $id;
-
-    /**
-     * 群组编号
-     *
-     * @var int
-     */
-    public $group_id;
-
-    /**
-     * 发送方编号
-     *
-     * @var int
-     */
-    public $sender_id;
-
-    /**
-     * 内容
-     *
-     * @var string
-     */
-    public $content;
-
-    /**
-     * 删除标识
-     *
-     * @var int
-     */
-    public $deleted;
-
-    /**
-     * 创建时间
-     *
-     * @var int
-     */
-    public $create_time;
-
-    /**
-     * 更新时间
-     *
-     * @var int
-     */
-    public $update_time;
-
-    public function getSource(): string
-    {
-        return 'kg_im_group_message';
-    }
-
-    public function initialize()
-    {
-        parent::initialize();
-
-        $this->addBehavior(
-            new SoftDelete([
-                'field' => 'deleted',
-                'value' => 1,
-            ])
-        );
-    }
-
-    public function beforeCreate()
-    {
-        $this->create_time = time();
-    }
-
-    public function beforeUpdate()
-    {
-        $this->update_time = time();
-    }
-
-}
diff --git a/app/Models/ImFriendMessage.php b/app/Models/ImMessage.php
similarity index 79%
rename from app/Models/ImFriendMessage.php
rename to app/Models/ImMessage.php
index a3643c63..90ff0309 100644
--- a/app/Models/ImFriendMessage.php
+++ b/app/Models/ImMessage.php
@@ -4,9 +4,12 @@ namespace App\Models;
 
 use Phalcon\Mvc\Model\Behavior\SoftDelete;
 
-class ImFriendMessage extends Model
+class ImMessage extends Model
 {
 
+    const TYPE_FRIEND = 'friend';
+    const TYPE_GROUP = 'group';
+
     /**
      * 主键编号
      *
@@ -35,6 +38,13 @@ class ImFriendMessage extends Model
      */
     public $receiver_id;
 
+    /**
+     * 接收方类型
+     *
+     * @var string
+     */
+    public $receiver_type;
+
     /**
      * 内容
      *
@@ -72,7 +82,7 @@ class ImFriendMessage extends Model
 
     public function getSource(): string
     {
-        return 'kg_im_friend_message';
+        return 'kg_im_message';
     }
 
     public function initialize()
@@ -91,7 +101,9 @@ class ImFriendMessage extends Model
     {
         $this->create_time = time();
 
-        $this->chat_id = self::getChatId($this->sender_id, $this->receiver_id);
+        if ($this->chat_type == self::TYPE_FRIEND) {
+            $this->chat_id = self::getChatId($this->sender_id, $this->receiver_id);
+        }
     }
 
     public function beforeUpdate()
diff --git a/app/Models/ImSystemMessage.php b/app/Models/ImNotice.php
similarity index 96%
rename from app/Models/ImSystemMessage.php
rename to app/Models/ImNotice.php
index fe8a27ba..a4b294c1 100644
--- a/app/Models/ImSystemMessage.php
+++ b/app/Models/ImNotice.php
@@ -4,7 +4,7 @@ namespace App\Models;
 
 use Phalcon\Mvc\Model\Behavior\SoftDelete;
 
-class ImSystemMessage extends Model
+class ImNotice extends Model
 {
 
     /**
@@ -15,7 +15,7 @@ class ImSystemMessage extends Model
     const REQUEST_REFUSED = 'refused'; // 已拒绝
 
     /**
-     * 消息类型
+     * 通知类型
      */
     const TYPE_FRIEND_REQUEST = 1; // 好友请求
     const TYPE_FRIEND_ACCEPTED = 2; // 好友被接受
@@ -96,7 +96,7 @@ class ImSystemMessage extends Model
 
     public function getSource(): string
     {
-        return 'kg_im_system_message';
+        return 'kg_im_notice';
     }
 
     public function initialize()
diff --git a/app/Models/Page.php b/app/Models/Page.php
index ec42961d..efef8aa4 100644
--- a/app/Models/Page.php
+++ b/app/Models/Page.php
@@ -15,13 +15,6 @@ class Page extends Model
      */
     public $id;
 
-    /**
-     * 别名
-     *
-     * @var string
-     */
-    public $alias;
-
     /**
      * 标题
      *
@@ -29,13 +22,6 @@ class Page extends Model
      */
     public $title;
 
-    /**
-     * 关键字
-     *
-     * @var string
-     */
-    public $keywords;
-
     /**
      * 内容
      *
diff --git a/app/Providers/Volt.php b/app/Providers/Volt.php
index b585573d..22f891c1 100644
--- a/app/Providers/Volt.php
+++ b/app/Providers/Volt.php
@@ -22,6 +22,10 @@ class Volt extends Provider
 
             $compiler = $volt->getCompiler();
 
+            $compiler->addFunction('site_setting', function ($resolvedArgs) {
+                return 'kg_site_setting(' . $resolvedArgs . ')';
+            });
+
             $compiler->addFunction('full_url', function ($resolvedArgs) {
                 return 'kg_full_url(' . $resolvedArgs . ')';
             });
diff --git a/app/Repos/Category.php b/app/Repos/Category.php
index cec43778..a7a49d57 100644
--- a/app/Repos/Category.php
+++ b/app/Repos/Category.php
@@ -3,8 +3,6 @@
 namespace App\Repos;
 
 use App\Models\Category as CategoryModel;
-use App\Models\Course as CourseModel;
-use App\Models\CourseCategory as CourseCategoryModel;
 use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Resultset;
 use Phalcon\Mvc\Model\ResultsetInterface;
@@ -26,6 +24,10 @@ class Category extends Repository
             $query->andWhere('parent_id = :parent_id:', ['parent_id' => $where['parent_id']]);
         }
 
+        if (isset($where['type'])) {
+            $query->andWhere('type = :type:', ['type' => $where['type']]);
+        }
+
         if (isset($where['level'])) {
             $query->andWhere('level = :level:', ['level' => $where['level']]);
         }
@@ -66,13 +68,16 @@ class Category extends Repository
     }
 
     /**
+     * @param string $type
      * @return ResultsetInterface|Resultset|CategoryModel[]
      */
-    public function findTopCategories()
+    public function findTopCategories($type)
     {
         return CategoryModel::query()
-            ->where('parent_id = 0')
+            ->where('type = :type:', ['type' => $type])
+            ->andWhere('parent_id = 0')
             ->andWhere('published = 1')
+            ->orderBy('priority ASC')
             ->execute();
     }
 
@@ -85,6 +90,7 @@ class Category extends Repository
         return CategoryModel::query()
             ->where('parent_id = :parent_id:', ['parent_id' => $categoryId])
             ->andWhere('published = 1')
+            ->orderBy('priority ASC')
             ->execute();
     }
 
@@ -96,17 +102,4 @@ class Category extends Repository
         ]);
     }
 
-    public function countCourses($categoryId)
-    {
-        $phql = 'SELECT COUNT(*) AS total FROM %s cc JOIN %s c ON cc.course_id = c.id WHERE cc.category_id = :category_id: AND c.published = 1';
-
-        $phql = sprintf($phql, CourseCategoryModel::class, CourseModel::class);
-
-        $bind = ['category_id' => $categoryId];
-
-        $record = $this->modelsManager->executeQuery($phql, $bind)->getFirst();
-
-        return (int)$record['total'];
-    }
-
 }
diff --git a/app/Repos/Help.php b/app/Repos/Help.php
index 12218481..5f35e7df 100644
--- a/app/Repos/Help.php
+++ b/app/Repos/Help.php
@@ -42,6 +42,10 @@ class Help extends Repository
 
         $query->where('1 = 1');
 
+        if (!empty($where['category_id'])) {
+            $query->andWhere('category_id = :category_id:', ['category_id' => $where['category_id']]);
+        }
+
         if (!empty($where['title'])) {
             $query->andWhere('title LIKE :title:', ['title' => "%{$where['title']}%"]);
         }
@@ -54,7 +58,7 @@ class Help extends Repository
             $query->andWhere('deleted = :deleted:', ['deleted' => $where['deleted']]);
         }
 
-        $query->orderBy('priority ASC');
+        $query->orderBy('category_id ASC,priority ASC');
 
         return $query->execute();
     }
diff --git a/app/Repos/ImGroup.php b/app/Repos/ImGroup.php
index da5d0f92..710fa86f 100644
--- a/app/Repos/ImGroup.php
+++ b/app/Repos/ImGroup.php
@@ -4,8 +4,8 @@ namespace App\Repos;
 
 use App\Library\Paginator\Adapter\QueryBuilder as PagerQueryBuilder;
 use App\Models\ImGroup as ImGroupModel;
-use App\Models\ImGroupMessage as ImGroupMessageModel;
 use App\Models\ImGroupUser as ImGroupUserModel;
+use App\Models\ImMessage as ImMessageModel;
 use App\Models\ImUser as ImUserModel;
 use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Resultset;
@@ -117,9 +117,9 @@ class ImGroup extends Repository
 
     public function countMessages($groupId)
     {
-        return (int)ImGroupMessageModel::count([
-            'conditions' => 'group_id = :group_id: AND published = 1',
-            'bind' => ['group_id' => $groupId],
+        return (int)ImMessageModel::count([
+            'conditions' => 'receiver_id = ?1 AND receiver_type = ?2 AND deleted = 0',
+            'bind' => [1 => $groupId, 2 => ImMessageModel::TYPE_GROUP],
         ]);
     }
 
diff --git a/app/Repos/ImGroupMessage.php b/app/Repos/ImGroupMessage.php
deleted file mode 100644
index e9795d9c..00000000
--- a/app/Repos/ImGroupMessage.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-
-namespace App\Repos;
-
-use App\Library\Paginator\Adapter\QueryBuilder as PagerQueryBuilder;
-use App\Models\ImGroupMessage as ImGroupMessageModel;
-use Phalcon\Mvc\Model;
-use Phalcon\Mvc\Model\Resultset;
-use Phalcon\Mvc\Model\ResultsetInterface;
-
-class ImGroupMessage extends Repository
-{
-
-    public function paginate($where = [], $sort = 'latest', $page = 1, $limit = 15)
-    {
-        $builder = $this->modelsManager->createBuilder();
-
-        $builder->from(ImGroupMessageModel::class);
-
-        $builder->where('1 = 1');
-
-        if (!empty($where['group_id'])) {
-            $builder->andWhere('group_id = :group_id:', ['group_id' => $where['group_id']]);
-        }
-
-        if (!empty($where['sender_id'])) {
-            $builder->andWhere('sender_id = :sender_id:', ['sender_id' => $where['sender_id']]);
-        }
-
-        if (isset($where['deleted'])) {
-            $builder->andWhere('deleted = :deleted:', ['deleted' => $where['deleted']]);
-        }
-
-        switch ($sort) {
-            case 'oldest':
-                $orderBy = 'id ASC';
-                break;
-            default:
-                $orderBy = 'id DESC';
-                break;
-        }
-
-        $builder->orderBy($orderBy);
-
-        $pager = new PagerQueryBuilder([
-            'builder' => $builder,
-            'page' => $page,
-            'limit' => $limit,
-        ]);
-
-        return $pager->paginate();
-    }
-
-    /**
-     * @param int $id
-     * @return ImGroupMessageModel|Model|bool
-     */
-    public function findById($id)
-    {
-        return ImGroupMessageModel::findFirst($id);
-    }
-
-    /**
-     * @param array $ids
-     * @param string|array $columns
-     * @return ResultsetInterface|Resultset|ImGroupMessageModel[]
-     */
-    public function findByIds($ids, $columns = '*')
-    {
-        return ImGroupMessageModel::query()
-            ->columns($columns)
-            ->inWhere('id', $ids)
-            ->execute();
-    }
-
-}
diff --git a/app/Repos/ImFriendMessage.php b/app/Repos/ImMessage.php
similarity index 78%
rename from app/Repos/ImFriendMessage.php
rename to app/Repos/ImMessage.php
index 2d9beabf..738027d0 100644
--- a/app/Repos/ImFriendMessage.php
+++ b/app/Repos/ImMessage.php
@@ -3,19 +3,19 @@
 namespace App\Repos;
 
 use App\Library\Paginator\Adapter\QueryBuilder as PagerQueryBuilder;
-use App\Models\ImFriendMessage as ImFriendMessageModel;
+use App\Models\ImMessage as ImMessageModel;
 use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Resultset;
 use Phalcon\Mvc\Model\ResultsetInterface;
 
-class ImFriendMessage extends Repository
+class ImMessage extends Repository
 {
 
     public function paginate($where = [], $sort = 'latest', $page = 1, $limit = 15)
     {
         $builder = $this->modelsManager->createBuilder();
 
-        $builder->from(ImFriendMessageModel::class);
+        $builder->from(ImMessageModel::class);
 
         $builder->where('1 = 1');
 
@@ -31,6 +31,10 @@ class ImFriendMessage extends Repository
             $builder->andWhere('receiver_id = :receiver_id:', ['receiver_id' => $where['receiver_id']]);
         }
 
+        if (!empty($where['receiver_type'])) {
+            $builder->andWhere('receiver_type = :receiver_type:', ['receiver_type' => $where['receiver_type']]);
+        }
+
         if (isset($where['deleted'])) {
             $builder->andWhere('deleted = :deleted:', ['deleted' => $where['deleted']]);
         }
@@ -57,21 +61,21 @@ class ImFriendMessage extends Repository
 
     /**
      * @param int $id
-     * @return ImFriendMessageModel|Model|bool
+     * @return ImMessageModel|Model|bool
      */
     public function findById($id)
     {
-        return ImFriendMessageModel::findFirst($id);
+        return ImMessageModel::findFirst($id);
     }
 
     /**
      * @param array $ids
      * @param string|array $columns
-     * @return ResultsetInterface|Resultset|ImFriendMessageModel[]
+     * @return ResultsetInterface|Resultset|ImMessageModel[]
      */
     public function findByIds($ids, $columns = '*')
     {
-        return ImFriendMessageModel::query()
+        return ImMessageModel::query()
             ->columns($columns)
             ->inWhere('id', $ids)
             ->execute();
diff --git a/app/Repos/ImSystemMessage.php b/app/Repos/ImNotice.php
similarity index 81%
rename from app/Repos/ImSystemMessage.php
rename to app/Repos/ImNotice.php
index a9fdfd1f..fe956f38 100644
--- a/app/Repos/ImSystemMessage.php
+++ b/app/Repos/ImNotice.php
@@ -3,19 +3,19 @@
 namespace App\Repos;
 
 use App\Library\Paginator\Adapter\QueryBuilder as PagerQueryBuilder;
-use App\Models\ImSystemMessage as ImSystemMessageModel;
+use App\Models\ImNotice as ImNoticeModel;
 use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Resultset;
 use Phalcon\Mvc\Model\ResultsetInterface;
 
-class ImSystemMessage extends Repository
+class ImNotice extends Repository
 {
 
     public function paginate($where = [], $sort = 'latest', $page = 1, $limit = 15)
     {
         $builder = $this->modelsManager->createBuilder();
 
-        $builder->from(ImSystemMessageModel::class);
+        $builder->from(ImNoticeModel::class);
 
         $builder->where('1 = 1');
 
@@ -53,21 +53,21 @@ class ImSystemMessage extends Repository
 
     /**
      * @param int $id
-     * @return ImSystemMessageModel|Model|bool
+     * @return ImNoticeModel|Model|bool
      */
     public function findById($id)
     {
-        return ImSystemMessageModel::findFirst($id);
+        return ImNoticeModel::findFirst($id);
     }
 
     /**
      * @param array $ids
      * @param string|array $columns
-     * @return ResultsetInterface|Resultset|ImSystemMessageModel[]
+     * @return ResultsetInterface|Resultset|ImNoticeModel[]
      */
     public function findByIds($ids, $columns = '*')
     {
-        return ImSystemMessageModel::query()
+        return ImNoticeModel::query()
             ->columns($columns)
             ->inWhere('id', $ids)
             ->execute();
diff --git a/app/Repos/ImUser.php b/app/Repos/ImUser.php
index 8b802f1f..aa3bf924 100644
--- a/app/Repos/ImUser.php
+++ b/app/Repos/ImUser.php
@@ -4,11 +4,11 @@ namespace App\Repos;
 
 use App\Library\Paginator\Adapter\QueryBuilder as PagerQueryBuilder;
 use App\Models\ImFriendGroup as ImFriendGroupModel;
-use App\Models\ImFriendMessage as ImFriendMessageModel;
 use App\Models\ImFriendUser as ImFriendUserModel;
 use App\Models\ImGroup as ImGroupModel;
 use App\Models\ImGroupUser as ImGroupUserModel;
-use App\Models\ImSystemMessage as ImSystemMessageModel;
+use App\Models\ImMessage as ImMessageModel;
+use App\Models\ImNotice as ImNoticeModel;
 use App\Models\ImUser as ImUserModel;
 use Phalcon\Mvc\Model;
 use Phalcon\Mvc\Model\Resultset;
@@ -111,31 +111,30 @@ class ImUser extends Repository
             ->addFrom(ImGroupModel::class, 'g')
             ->join(ImGroupUserModel::class, 'g.id = gu.group_id', 'gu')
             ->where('gu.user_id = :user_id:', ['user_id' => $userId])
-            ->andWhere('g.published = 1')
             ->getQuery()->execute();
     }
 
     /**
      * @param int $friendId
      * @param int $userId
-     * @return ResultsetInterface|Resultset|ImFriendMessageModel[]
+     * @return ResultsetInterface|Resultset|ImMessageModel[]
      */
     public function findUnreadFriendMessages($friendId, $userId)
     {
-        return ImFriendMessageModel::find([
-            'conditions' => 'sender_id = ?1 AND receiver_id = ?2 AND viewed = ?3',
-            'bind' => [1 => $friendId, 2 => $userId, 3 => 0],
+        return ImMessageModel::find([
+            'conditions' => 'sender_id = ?1 AND receiver_id = ?2 AND viewed = 0',
+            'bind' => [1 => $friendId, 2 => $userId],
         ]);
     }
 
     /**
      * @param int $userId
      * @param int $itemType
-     * @return ImSystemMessageModel|Model|bool
+     * @return ImNoticeModel|Model|bool
      */
-    public function findSystemMessage($userId, $itemType)
+    public function findNotice($userId, $itemType)
     {
-        return ImSystemMessageModel::findFirst([
+        return ImNoticeModel::findFirst([
             'conditions' => 'receiver_id = ?1 AND item_type = ?2',
             'bind' => [1 => $userId, 2 => $itemType],
             'order' => 'id DESC',
@@ -144,21 +143,21 @@ class ImUser extends Repository
 
     /**
      * @param int $userId
-     * @return ResultsetInterface|Resultset|ImFriendMessageModel[]
+     * @return ResultsetInterface|Resultset|ImNoticeModel[]
      */
-    public function findUnreadSystemMessages($userId)
+    public function findUnreadNotices($userId)
     {
-        return ImSystemMessageModel::find([
-            'conditions' => 'receiver_id = ?1 AND viewed = ?2',
-            'bind' => [1 => $userId, 2 => 0],
+        return ImNoticeModel::find([
+            'conditions' => 'receiver_id = :receiver_id: AND viewed = 0',
+            'bind' => ['receiver_id' => $userId],
         ]);
     }
 
-    public function countUnreadSystemMessages($userId)
+    public function countUnreadNotices($userId)
     {
-        return (int)ImSystemMessageModel::count([
-            'conditions' => 'receiver_id = ?1 AND viewed = ?2',
-            'bind' => [1 => $userId, 2 => 0],
+        return (int)ImNoticeModel::count([
+            'conditions' => 'receiver_id = :receiver_id: AND viewed = 0',
+            'bind' => ['receiver_id' => $userId],
         ]);
     }
 
diff --git a/app/Services/Category.php b/app/Services/Category.php
index 4eea404a..b2871217 100644
--- a/app/Services/Category.php
+++ b/app/Services/Category.php
@@ -4,6 +4,7 @@ namespace App\Services;
 
 use App\Caches\Category as CategoryCache;
 use App\Caches\CategoryList as CategoryListCache;
+use App\Models\Category as CategoryModel;
 
 class Category extends Service
 {
@@ -50,14 +51,15 @@ class Category extends Service
     /**
      * 获取子节点
      *
+     * @param string $type
      * @param int $id
      * @return array
      */
-    public function getChildCategories($id = 0)
+    public function getChildCategories($type, $id)
     {
         $categoryListCache = new CategoryListCache();
 
-        $categories = $categoryListCache->get();
+        $categories = $categoryListCache->get($type);
 
         $result = [];
 
@@ -80,6 +82,9 @@ class Category extends Service
     {
         $categoryCache = new CategoryCache();
 
+        /**
+         * @var CategoryModel $category
+         */
         $category = $categoryCache->get($id);
 
         if (!$category) {
@@ -92,7 +97,7 @@ class Category extends Service
 
         $categoryListCache = new CategoryListCache();
 
-        $categories = $categoryListCache->get();
+        $categories = $categoryListCache->get($category->type);
 
         $result = [];
 
diff --git a/app/Services/Frontend/Help/HelpInfo.php b/app/Services/Frontend/Help/HelpInfo.php
index 2b6619b9..b26f43c1 100644
--- a/app/Services/Frontend/Help/HelpInfo.php
+++ b/app/Services/Frontend/Help/HelpInfo.php
@@ -13,7 +13,7 @@ class HelpInfo extends FrontendService
 
     public function handle($id)
     {
-        $help = $this->checkHelpCache($id);
+        $help = $this->checkHelp($id);
 
         return $this->handleHelp($help);
     }
diff --git a/app/Services/Frontend/Help/HelpList.php b/app/Services/Frontend/Help/HelpList.php
index 371fe255..742fede4 100644
--- a/app/Services/Frontend/Help/HelpList.php
+++ b/app/Services/Frontend/Help/HelpList.php
@@ -2,8 +2,7 @@
 
 namespace App\Services\Frontend\Help;
 
-use App\Models\Help as HelpModel;
-use App\Repos\Help as HelpRepo;
+use App\Caches\HelpList as HelpListCache;
 use App\Services\Frontend\Service as FrontendService;
 
 class HelpList extends FrontendService
@@ -11,38 +10,11 @@ class HelpList extends FrontendService
 
     public function handle()
     {
-        $helpRepo = new HelpRepo();
+        $cache = new HelpListCache();
 
-        $params = ['published' => 1];
+        $result = $cache->get();
 
-        $helps = $helpRepo->findAll($params);
-
-        $result = [];
-
-        if ($helps->count() > 0) {
-            $result = $this->handleHelps($helps);
-        }
-
-        return $result;
-    }
-
-    /**
-     * @param HelpModel[] $helps
-     * @return array
-     */
-    protected function handleHelps($helps)
-    {
-        $items = [];
-
-        foreach ($helps as $help) {
-            $items[] = [
-                'id' => $help->id,
-                'title' => $help->title,
-                'content' => $help->content,
-            ];
-        }
-
-        return $items;
+        return $result ?: [];
     }
 
 }
diff --git a/app/Services/MyStorage.php b/app/Services/MyStorage.php
new file mode 100644
index 00000000..cc98ad82
--- /dev/null
+++ b/app/Services/MyStorage.php
@@ -0,0 +1,171 @@
+<?php
+
+namespace App\Services;
+
+use App\Library\Utils\FileInfo;
+use App\Models\UploadFile as UploadFileModel;
+use App\Repos\UploadFile as UploadFileRepo;
+
+class MyStorage extends Storage
+{
+
+    /**
+     * 文件类型
+     */
+    const TYPE_IMAGE = 'image';
+    const TYPE_VIDEO = 'video';
+    const TYPE_AUDIO = 'audio';
+    const TYPE_FILE = 'file';
+
+    public function uploadTestFile()
+    {
+        $key = 'hello_world.txt';
+        $value = 'hello world';
+
+        return $this->putString($key, $value);
+    }
+
+    public function uploadDefaultAvatarImage()
+    {
+        $filename = public_path('static/admin/img/default_avatar.png');
+
+        $key = '/img/avatar/default.png';
+
+        return $this->putFile($key, $filename);
+    }
+
+    public function uploadDefaultCoverImage()
+    {
+        $filename = public_path('static/admin/img/default_cover.png');
+
+        $key = '/img/cover/default.png';
+
+        return $this->putFile($key, $filename);
+    }
+
+    /**
+     * 上传封面图片
+     *
+     * @return UploadFileModel|bool
+     */
+    public function uploadCoverImage()
+    {
+        return $this->upload('/img/cover/', self::TYPE_IMAGE);
+    }
+
+    /**
+     * 上传编辑器图片
+     *
+     * @return UploadFileModel|bool
+     */
+    public function uploadEditorImage()
+    {
+        return $this->upload('/img/editor/', self::TYPE_IMAGE);
+    }
+
+    /**
+     * 上传头像图片
+     *
+     * @return UploadFileModel|bool
+     */
+    public function uploadAvatarImage()
+    {
+        return $this->upload('/img/avatar/', self::TYPE_IMAGE);
+    }
+
+    /**
+     * 上传im图片
+     *
+     * @return UploadFileModel|bool
+     */
+    public function uploadImImage()
+    {
+        return $this->upload('/im/img/', self::TYPE_IMAGE);
+    }
+
+    /**
+     * 上传im文件
+     */
+    public function uploadImFile()
+    {
+        return $this->upload('/im/file/', self::TYPE_FILE);
+    }
+
+    /**
+     * 上传文件
+     *
+     * @param string $prefix
+     * @param string $type
+     * @return UploadFileModel|bool
+     */
+    protected function upload($prefix = '', $type = self::TYPE_IMAGE)
+    {
+        $list = [];
+
+        if ($this->request->hasFiles(true)) {
+
+            $files = $this->request->getUploadedFiles(true);
+
+            $uploadFileRepo = new UploadFileRepo();
+
+            foreach ($files as $file) {
+
+                if ($this->checkFile($file->getRealType(), $type) == false) {
+                    continue;
+                }
+
+                $md5 = md5_file($file->getTempName());
+
+                $uploadFile = $uploadFileRepo->findByMd5($md5);
+
+                if ($uploadFile == false) {
+
+                    $extension = $this->getFileExtension($file->getName());
+                    $keyName = $this->generateFileName($extension, $prefix);
+                    $path = $this->putFile($keyName, $file->getTempName());
+
+                    $uploadFile = new UploadFileModel();
+
+                    $uploadFile->mime = $file->getRealType();
+                    $uploadFile->size = $file->getSize();
+                    $uploadFile->path = $path;
+                    $uploadFile->md5 = $md5;
+
+                    $uploadFile->create();
+                }
+
+                $list[] = $uploadFile;
+            }
+        }
+
+        return $list[0] ?: false;
+    }
+
+    /**
+     * 检查上传文件
+     *
+     * @param string $mime
+     * @param string $type
+     * @return bool
+     */
+    protected function checkFile($mime, $type)
+    {
+        switch ($type) {
+            case self::TYPE_IMAGE:
+                $result = FileInfo::isImage($mime);
+                break;
+            case self::TYPE_VIDEO:
+                $result = FileInfo::isVideo($mime);
+                break;
+            case self::TYPE_AUDIO:
+                $result = FileInfo::isAudio($mime);
+                break;
+            default:
+                $result = FileInfo::isSecure($mime);
+                break;
+        }
+
+        return $result;
+    }
+
+}
diff --git a/app/Services/Storage.php b/app/Services/Storage.php
index eb24f6c6..b5a3c162 100644
--- a/app/Services/Storage.php
+++ b/app/Services/Storage.php
@@ -2,23 +2,12 @@
 
 namespace App\Services;
 
-use App\Library\Utils\FileInfo;
-use App\Models\UploadFile as UploadFileModel;
-use App\Repos\UploadFile as UploadFileRepo;
 use Phalcon\Logger\Adapter\File as FileLogger;
 use Qcloud\Cos\Client as CosClient;
 
 class Storage extends Service
 {
 
-    /**
-     * 文件类型
-     */
-    const TYPE_IMAGE = 'image';
-    const TYPE_VIDEO = 'video';
-    const TYPE_AUDIO = 'audio';
-    const TYPE_FILE = 'file';
-
     /**
      * @var array
      */
@@ -43,117 +32,6 @@ class Storage extends Service
         $this->client = $this->getCosClient();
     }
 
-    /**
-     * 上传测试文件
-     *
-     * @return bool
-     */
-    public function uploadTestFile()
-    {
-        $key = 'hello_world.txt';
-        $value = 'hello world';
-
-        return $this->putString($key, $value);
-    }
-
-    /**
-     * 上传封面图片
-     *
-     * @return UploadFileModel|bool
-     */
-    public function uploadCoverImage()
-    {
-        return $this->upload('/img/cover/', self::TYPE_IMAGE);
-    }
-
-    /**
-     * 上传编辑器图片
-     *
-     * @return UploadFileModel|bool
-     */
-    public function uploadEditorImage()
-    {
-        return $this->upload('/img/editor/', self::TYPE_IMAGE);
-    }
-
-    /**
-     * 上传头像图片
-     *
-     * @return UploadFileModel|bool
-     */
-    public function uploadAvatarImage()
-    {
-        return $this->upload('/img/avatar/', self::TYPE_IMAGE);
-    }
-
-    /**
-     * 上传im图片
-     *
-     * @return UploadFileModel|bool
-     */
-    public function uploadImImage()
-    {
-        return $this->upload('/im/img/', self::TYPE_IMAGE);
-    }
-
-    /**
-     * 上传im文件
-     */
-    public function uploadImFile()
-    {
-        return $this->upload('/im/file/', self::TYPE_FILE);
-    }
-
-    /**
-     * 上传文件
-     *
-     * @param string $prefix
-     * @param string $type
-     * @return UploadFileModel|bool
-     */
-    protected function upload($prefix = '', $type = self::TYPE_IMAGE)
-    {
-        $list = [];
-
-        if ($this->request->hasFiles(true)) {
-
-            $files = $this->request->getUploadedFiles(true);
-
-            $uploadFileRepo = new UploadFileRepo();
-
-            foreach ($files as $file) {
-
-                if ($this->checkUploadFile($file->getRealType(), $type) == false) {
-                    continue;
-                }
-
-                $md5 = md5_file($file->getTempName());
-
-                $uploadFile = $uploadFileRepo->findByMd5($md5);
-
-                if ($uploadFile == false) {
-
-                    $extension = $this->getFileExtension($file->getName());
-                    $keyName = $this->generateFileName($extension, $prefix);
-                    $path = $this->putFile($keyName, $file->getTempName());
-
-                    $uploadFile = new UploadFileModel();
-
-                    $uploadFile->mime = $file->getRealType();
-                    $uploadFile->size = $file->getSize();
-                    $uploadFile->path = $path;
-                    $uploadFile->md5 = $md5;
-
-                    $uploadFile->create();
-                }
-
-                $list[] = $uploadFile;
-            }
-        }
-
-        return $list[0] ?: false;
-    }
-
     /**
      * 上传字符内容
      *
@@ -161,7 +39,7 @@ class Storage extends Service
      * @param string $body
      * @return string|bool
      */
-    protected function putString($key, $body)
+    public function putString($key, $body)
     {
         $bucket = $this->settings['bucket_name'];
 
@@ -189,16 +67,16 @@ class Storage extends Service
      * 上传文件
      *
      * @param string $key
-     * @param string $fileName
+     * @param string $filename
      * @return mixed string|bool
      */
-    protected function putFile($key, $fileName)
+    public function putFile($key, $filename)
     {
         $bucket = $this->settings['bucket_name'];
 
         try {
 
-            $body = fopen($fileName, 'rb');
+            $body = fopen($filename, 'rb');
 
             $response = $this->client->upload($bucket, $key, $body);
 
@@ -224,7 +102,7 @@ class Storage extends Service
      * @param string $key
      * @return string|bool
      */
-    protected function deleteObject($key)
+    public function deleteObject($key)
     {
         $bucket = $this->settings['bucket_name'];
 
@@ -316,43 +194,16 @@ class Storage extends Service
     /**
      * 获取文件扩展名
      *
-     * @param $fileName
+     * @param $filename
      * @return string
      */
-    protected function getFileExtension($fileName)
+    protected function getFileExtension($filename)
     {
-        $extension = pathinfo($fileName, PATHINFO_EXTENSION);
+        $extension = pathinfo($filename, PATHINFO_EXTENSION);
 
         return strtolower($extension);
     }
 
-    /**
-     * 检查上传文件
-     *
-     * @param string $mime
-     * @param string $type
-     * @return bool
-     */
-    protected function checkUploadFile($mime, $type)
-    {
-        switch ($type) {
-            case self::TYPE_IMAGE:
-                $result = FileInfo::isImage($mime);
-                break;
-            case self::TYPE_VIDEO:
-                $result = FileInfo::isVideo($mime);
-                break;
-            case self::TYPE_AUDIO:
-                $result = FileInfo::isAudio($mime);
-                break;
-            default:
-                $result = FileInfo::isSecure($mime);
-                break;
-        }
-
-        return $result;
-    }
-
     /**
      * 获取CosClient
      *
diff --git a/app/Validators/Category.php b/app/Validators/Category.php
index a787bca5..c60ba738 100644
--- a/app/Validators/Category.php
+++ b/app/Validators/Category.php
@@ -68,6 +68,17 @@ class Category extends Validator
         return $category;
     }
 
+    public function checkType($type)
+    {
+        $list = CategoryModel::types();
+
+        if (!isset($list[$type])) {
+            throw new BadRequestException('category.invalid_type');
+        }
+
+        return $type;
+    }
+
     public function checkName($name)
     {
         $value = $this->filter->sanitize($name, ['trim', 'string']);
diff --git a/app/Validators/Course.php b/app/Validators/Course.php
index 092e1cbb..7bd25588 100644
--- a/app/Validators/Course.php
+++ b/app/Validators/Course.php
@@ -147,10 +147,10 @@ class Course extends Validator
 
         $list = [];
 
-        foreach ($keywords as $keywords) {
-            $keywords = trim($keywords);
-            if (kg_strlen($keywords) > 1) {
-                $list[] = $keywords;
+        foreach ($keywords as $keyword) {
+            $keyword = trim($keyword);
+            if (kg_strlen($keyword) > 1) {
+                $list[] = $keyword;
             }
         }
 
diff --git a/app/Validators/Help.php b/app/Validators/Help.php
index ec09468c..babab1b5 100644
--- a/app/Validators/Help.php
+++ b/app/Validators/Help.php
@@ -55,6 +55,13 @@ class Help extends Validator
         return $help;
     }
 
+    public function checkCategory($id)
+    {
+        $validator = new Category();
+
+        return $validator->checkCategory($id);
+    }
+
     public function checkTitle($title)
     {
         $value = $this->filter->sanitize($title, ['trim', 'string']);
diff --git a/config/errors.php b/config/errors.php
index 208f94de..522b64ef 100644
--- a/config/errors.php
+++ b/config/errors.php
@@ -75,6 +75,7 @@ $error['user.invalid_lock_expiry_time'] = '无效的锁定期限';
  */
 $error['category.not_found'] = '分类不存在';
 $error['category.parent_not_found'] = '父级分类不存在';
+$error['category.invalid_type'] = '无效的分类类型';
 $error['category.invalid_priority'] = '无效的排序值（范围：1-255）';
 $error['category.invalid_publish_status'] = '无效的发布状态';
 $error['category.name_too_short'] = '名称太短（少于2个字符）';
diff --git a/public/static/admin/js/avatar.upload.js b/public/static/admin/js/avatar.upload.js
index ecf1d240..5e470dc5 100644
--- a/public/static/admin/js/avatar.upload.js
+++ b/public/static/admin/js/avatar.upload.js
@@ -6,7 +6,7 @@ layui.use(['jquery', 'layer', 'upload'], function () {
 
     upload.render({
         elem: '#change-avatar',
-        url: '/admin/upload/img/avatar',
+        url: '/admin/upload/avatar/img',
         accept: 'images',
         acceptMime: 'image/*',
         size: 512,
diff --git a/public/static/admin/js/cover.upload.js b/public/static/admin/js/cover.upload.js
index e14128cc..4d380606 100644
--- a/public/static/admin/js/cover.upload.js
+++ b/public/static/admin/js/cover.upload.js
@@ -6,7 +6,7 @@ layui.use(['jquery', 'layer', 'upload'], function () {
 
     upload.render({
         elem: '#change-cover',
-        url: '/admin/upload/img/cover',
+        url: '/admin/upload/cover/img',
         accept: 'images',
         acceptMime: 'image/*',
         before: function () {
diff --git a/public/static/web/js/im.js b/public/static/web/js/im.js
index 514483bb..fc6abf20 100644
--- a/public/static/web/js/im.js
+++ b/public/static/web/js/im.js
@@ -23,7 +23,7 @@ layui.use(['jquery', 'layim'], function () {
             socket.send('pong...');
         } else if (data.type === 'bind_user') {
             bindUser(data);
-            refreshMessageBox();
+            refreshMsgBox();
         } else if (data.type === 'new_group_user') {
             showNewGroupUserMessage(data);
         } else if (data.type === 'show_online_tips') {
@@ -32,13 +32,13 @@ layui.use(['jquery', 'layim'], function () {
             setChatMessageCount(data);
             showChatMessage(data);
         } else if (data.type === 'refresh_msg_box') {
-            refreshMessageBox();
+            refreshMsgBox();
         } else if (data.type === 'friend_accepted') {
             friendAccepted(data);
-            refreshMessageBox();
+            refreshMsgBox();
         } else if (data.type === 'group_accepted') {
             groupAccepted(data);
-            refreshMessageBox();
+            refreshMsgBox();
         }
     };
 
@@ -51,10 +51,10 @@ layui.use(['jquery', 'layim'], function () {
             url: '/im/group/users'
         },
         uploadImage: {
-            url: '/im/img/upload'
+            url: '/upload/im/image'
         },
         uploadFile: {
-            url: '/im/file/upload'
+            url: '/upload/im/file'
         },
         maxLength: 1000,
         find: '/im/find',
@@ -151,7 +151,7 @@ layui.use(['jquery', 'layim'], function () {
         if (res.data.type === 'friend' && unreadListMsgCount > 0) {
             $.ajax({
                 type: 'GET',
-                url: '/im/msg/friend/unread',
+                url: '/im/friend/msg/unread',
                 data: {id: res.data.id}
             });
         }
@@ -193,10 +193,10 @@ layui.use(['jquery', 'layim'], function () {
         });
     }
 
-    function refreshMessageBox() {
+    function refreshMsgBox() {
         $.ajax({
             type: 'GET',
-            url: '/im/msg/sys/unread',
+            url: '/im/sys/msg/unread',
             success: function (res) {
                 if (res.count > 0) {
                     layim.msgbox(res.count);
diff --git a/public/static/web/js/im.msgbox.js b/public/static/web/js/im.msgbox.js
index 5db12e17..64231a6b 100644
--- a/public/static/web/js/im.msgbox.js
+++ b/public/static/web/js/im.msgbox.js
@@ -1,19 +1,18 @@
-layui.use(['jquery', 'layer', 'layim', 'laypage'], function () {
+layui.use(['jquery', 'layer', 'laypage'], function () {
 
     var $ = layui.jquery;
     var layer = layui.layer;
-    var layim = layui.layim;
     var laypage = layui.laypage;
 
     var $target = $('#LAY_view');
     var $page = $('#LAY_page');
     var count = $page.data('count');
-    var limit = 15;
+    var limit = 12;
 
     /**
-     * 标记信息为已读
+     * 标记通知为已读
      */
-    readSystemMessages();
+    readNotices();
 
     /**
      * 加载第一页数据
@@ -37,13 +36,13 @@ layui.use(['jquery', 'layer', 'layim', 'laypage'], function () {
     }
 
     function loadPageHtml(target, page) {
-        $.get('/im/msg/sys', {page: page}, function (html) {
+        $.get('/im/sys/msg', {page: page}, function (html) {
             target.html(html);
         });
     }
 
-    function readSystemMessages() {
-        $.post('/im/msg/sys/read');
+    function readNotices() {
+        $.post('/im/sys/msg/read');
     }
 
     var action = {
diff --git a/public/static/web/js/order.pay.js b/public/static/web/js/order.pay.js
index 529fbe7f..2551630b 100644
--- a/public/static/web/js/order.pay.js
+++ b/public/static/web/js/order.pay.js
@@ -4,22 +4,24 @@ layui.use(['jquery', 'layer'], function () {
     var layer = layui.layer;
 
     $('.btn-pay').on('click', function () {
+
         var channel = $(this).data('channel');
         var createUrl = $('input[name=trade_create_url]').val();
         var statusUrl = $('input[name=trade_status_url]').val();
         var forwardUrl = $('input[name=forward_url]').val();
         var orderSn = $('input[name=order_sn]').val();
         var $qrBlock = $('#' + channel + '-qrcode');
-        var $snInput = $('input[name=' + channel + '_trade_sn]');
+        var $tradeSn = $('input[name=' + channel + '_trade_sn]');
         var qrTitle = channel === 'alipay' ? '支付宝扫码支付' : '微信扫码支付';
         var qrHtml = $qrBlock.html();
+
         if (qrHtml.length === 0) {
             var postData = {order_sn: orderSn, channel: channel};
             $.post(createUrl, postData, function (res) {
-                qrHtml = '<div class="qrcode"><img src="' + res.qrcode_url + '" alt="支付二维码"></div>';
+                qrHtml = '<div class="qrcode"><img src="' + res.qrcode + '" alt="支付二维码"></div>';
                 showQrLayer(qrTitle, qrHtml);
                 $qrBlock.html(qrHtml);
-                $snInput.html(res.sn);
+                $tradeSn.val(res.sn);
                 var interval = setInterval(function () {
                     var queryData = {sn: res.sn};
                     $.get(statusUrl, queryData, function (res) {
@@ -31,7 +33,7 @@ layui.use(['jquery', 'layer'], function () {
                             }, 5000);
                         }
                     });
-                }, 3000)
+                }, 5000);
             });
         } else {
             showQrLayer(qrTitle, qrHtml);
diff --git a/public/static/web/js/upload.avatar.js b/public/static/web/js/upload.avatar.js
index 89735e5d..4085ee11 100644
--- a/public/static/web/js/upload.avatar.js
+++ b/public/static/web/js/upload.avatar.js
@@ -6,7 +6,7 @@ layui.use(['jquery', 'layer', 'upload'], function () {
 
     upload.render({
         elem: '#change-avatar',
-        url: '/upload/img/avatar',
+        url: '/upload/avatar/img',
         accept: 'images',
         acceptMime: 'image/*',
         size: 512,