diff --git a/LICENSE b/LICENSE
index 8d97e6ed..c5017de7 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,5 @@
-本软件是强业务类型的，并非框架类库，不适合衍生发布。
+使用协议
 
-前提条件：不衍生发布，不去除相关版权标识
-
-1. 在满足前提条件下免费使用，可以二次开发，可以用于商业行为。
-2. 用户对自己行为负责，有限社区支持，无个体服务。
\ No newline at end of file
+1. 本系统属于强业务类型，非通用类库框架，不适合再次衍生发布。
+2. 在保留我们版权标识的前提下，用户可以修改以满足自己的需求，可以用于商业用途。
+3. 有限社区支持，用户对自己的行为负责。
\ No newline at end of file
diff --git a/README.md b/README.md
index a97005b5..22a6034c 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# 酷瓜云课堂
+## 酷瓜云课堂
 
 #### 项目介绍
 
@@ -6,18 +6,18 @@
 
 #### 系统功能
 
-都有些什么功能？我也不想写一大堆，自己体验吧！
+实现了点播、直播、专栏、会员、微聊等，是一个完整的产品，具体功能我也不想写一大堆，自己体验吧！
 
 - [前台演示](https://ctc.koogua.com)
 - [后台演示](https://ctc.koogua.com/admin)
 
-帐号：100015@163.com / 123456 (前后台通用，请不要修改密码)
+帐号：100015@163.com / 123456 (前后台通用)
 
 友情提示：
 
-- 系统配置低（1核 1G 1M 跑多个容器），手下留情
+- 系统配置低（1核 1G 1M 跑多个容器），切莫压测
 - 课程数据来源于网络（无实质内容），切莫购买
-- 管理后台已禁止提交（私密配置已过滤）
+- 管理后台已禁止数据提交，私密配置已过滤
 
 #### 项目组件
 
@@ -48,7 +48,7 @@
 
 #### 意见反馈
 
-- [在线反馈](https://gitee.com/koogua/course-tencent-cloud/issues)
+- [在线反馈](https://gitee.com/koogua/course-tencent-cloud/issues)（推荐）
 - QQ邮箱: 76632555@qq.com
 - QQ群组: 787363898
 
diff --git a/app/Console/Tasks/SiteMapTask.php b/app/Console/Tasks/SitemapTask.php
similarity index 79%
rename from app/Console/Tasks/SiteMapTask.php
rename to app/Console/Tasks/SitemapTask.php
index d78ce46d..e955055c 100644
--- a/app/Console/Tasks/SiteMapTask.php
+++ b/app/Console/Tasks/SitemapTask.php
@@ -2,7 +2,7 @@
 
 namespace App\Console\Tasks;
 
-use App\Library\SiteMap;
+use App\Library\Sitemap;
 use App\Models\Course as CourseModel;
 use App\Models\Help as HelpModel;
 use App\Models\ImGroup as ImGroupModel;
@@ -12,7 +12,7 @@ use App\Models\User as UserModel;
 use App\Services\Service as AppService;
 use Phalcon\Mvc\Model\Resultset;
 
-class SiteMapTask extends Task
+class SitemapTask extends Task
 {
 
     /**
@@ -21,15 +21,15 @@ class SiteMapTask extends Task
     protected $siteUrl;
 
     /**
-     * @var SiteMap
+     * @var Sitemap
      */
-    protected $siteMap;
+    protected $sitemap;
 
     public function mainAction()
     {
         $this->siteUrl = $this->getSiteUrl();
 
-        $this->siteMap = new SiteMap();
+        $this->sitemap = new Sitemap();
 
         $filename = public_path('sitemap.xml');
 
@@ -42,7 +42,7 @@ class SiteMapTask extends Task
         $this->addPages();
         $this->addOthers();
 
-        $this->siteMap->build($filename);
+        $this->sitemap->build($filename);
     }
 
     protected function getSiteUrl()
@@ -56,7 +56,7 @@ class SiteMapTask extends Task
 
     protected function addIndex()
     {
-        $this->siteMap->addItem($this->siteUrl, 1);
+        $this->sitemap->addItem($this->siteUrl, 1);
     }
 
     protected function addCourses()
@@ -70,7 +70,7 @@ class SiteMapTask extends Task
 
         foreach ($courses as $course) {
             $loc = sprintf('%s/course/%s', $this->siteUrl, $course->id);
-            $this->siteMap->addItem($loc, 0.8);
+            $this->sitemap->addItem($loc, 0.8);
         }
     }
 
@@ -85,7 +85,7 @@ class SiteMapTask extends Task
 
         foreach ($teachers as $teacher) {
             $loc = sprintf('%s/teacher/%s', $this->siteUrl, $teacher->id);
-            $this->siteMap->addItem($loc, 0.6);
+            $this->sitemap->addItem($loc, 0.6);
         }
     }
 
@@ -100,7 +100,7 @@ class SiteMapTask extends Task
 
         foreach ($topics as $topic) {
             $loc = sprintf('%s/topic/%s', $this->siteUrl, $topic->id);
-            $this->siteMap->addItem($loc, 0.6);
+            $this->sitemap->addItem($loc, 0.6);
         }
     }
 
@@ -115,7 +115,7 @@ class SiteMapTask extends Task
 
         foreach ($groups as $group) {
             $loc = sprintf('%s/im/group/%s', $this->siteUrl, $group->id);
-            $this->siteMap->addItem($loc, 0.6);
+            $this->sitemap->addItem($loc, 0.6);
         }
     }
 
@@ -130,7 +130,7 @@ class SiteMapTask extends Task
 
         foreach ($pages as $page) {
             $loc = sprintf('%s/page/%s', $this->siteUrl, $page->id);
-            $this->siteMap->addItem($loc, 0.7);
+            $this->sitemap->addItem($loc, 0.7);
         }
     }
 
@@ -145,18 +145,18 @@ class SiteMapTask extends Task
 
         foreach ($helps as $help) {
             $loc = sprintf('%s/help/%s', $this->siteUrl, $help->id);
-            $this->siteMap->addItem($loc, 0.7);
+            $this->sitemap->addItem($loc, 0.7);
         }
     }
 
     protected function addOthers()
     {
-        $this->siteMap->addItem('/course/list', 0.6);
-        $this->siteMap->addItem('/im/group/list', 0.6);
-        $this->siteMap->addItem('/teacher/list', 0.6);
-        $this->siteMap->addItem('/vip', 0.6);
-        $this->siteMap->addItem('/help', 0.6);
-        $this->siteMap->addItem('/search', 0.6);
+        $this->sitemap->addItem('/course/list', 0.6);
+        $this->sitemap->addItem('/im/group/list', 0.6);
+        $this->sitemap->addItem('/teacher/list', 0.6);
+        $this->sitemap->addItem('/vip', 0.6);
+        $this->sitemap->addItem('/help', 0.6);
+        $this->sitemap->addItem('/search', 0.6);
     }
 
 }
diff --git a/app/Http/Admin/Views/carousel/add.volt b/app/Http/Admin/Views/slide/add.volt
similarity index 100%
rename from app/Http/Admin/Views/carousel/add.volt
rename to app/Http/Admin/Views/slide/add.volt
diff --git a/app/Http/Admin/Views/carousel/edit.volt b/app/Http/Admin/Views/slide/edit.volt
similarity index 100%
rename from app/Http/Admin/Views/carousel/edit.volt
rename to app/Http/Admin/Views/slide/edit.volt
diff --git a/app/Http/Admin/Views/carousel/list.volt b/app/Http/Admin/Views/slide/list.volt
similarity index 100%
rename from app/Http/Admin/Views/carousel/list.volt
rename to app/Http/Admin/Views/slide/list.volt
diff --git a/app/Http/Home/Controllers/HelpController.php b/app/Http/Home/Controllers/HelpController.php
index 57e4be9c..d525a80a 100644
--- a/app/Http/Home/Controllers/HelpController.php
+++ b/app/Http/Home/Controllers/HelpController.php
@@ -12,7 +12,7 @@ class HelpController extends Controller
 {
 
     /**
-     * @Get("/", name="home.help.index")
+     * @Get("/index", name="home.help.index")
      */
     public function indexAction()
     {
diff --git a/app/Http/Home/Controllers/ImController.php b/app/Http/Home/Controllers/ImController.php
index d23fd030..9de0c1e9 100644
--- a/app/Http/Home/Controllers/ImController.php
+++ b/app/Http/Home/Controllers/ImController.php
@@ -24,7 +24,7 @@ class ImController extends Controller
     }
 
     /**
-     * @Get("/", name="home.im.index")
+     * @Get("/index", name="home.im.index")
      */
     public function indexAction()
     {
diff --git a/app/Http/Home/Views/help/index.volt b/app/Http/Home/Views/help/index.volt
index 5a9eb40b..116d9891 100644
--- a/app/Http/Home/Views/help/index.volt
+++ b/app/Http/Home/Views/help/index.volt
@@ -5,7 +5,7 @@
     <div class="breadcrumb">
         <span class="layui-breadcrumb">
             <a href="/">首页</a>
-            <a><cite>帮助</cite></a>
+            <a><cite>帮助中心</cite></a>
         </span>
     </div>
 
diff --git a/app/Http/Home/Views/help/show.volt b/app/Http/Home/Views/help/show.volt
index bf7cca48..79acca71 100644
--- a/app/Http/Home/Views/help/show.volt
+++ b/app/Http/Home/Views/help/show.volt
@@ -5,13 +5,12 @@
     <div class="breadcrumb">
         <span class="layui-breadcrumb">
             <a href="/">首页</a>
-            <a href="{{ url({'for':'home.help.index'}) }}">帮助</a>
+            <a href="{{ url({'for':'home.help.index'}) }}">帮助中心</a>
             <a><cite>{{ help.title }}</cite></a>
         </span>
     </div>
 
     <div class="page-info wrap">
-        <div class="title">{{ help.title }}</div>
         <div class="content" id="preview">{{ help.content }}</div>
     </div>
 
diff --git a/app/Library/CsrfToken.php b/app/Library/CsrfToken.php
index 2ef2a861..213d3d27 100644
--- a/app/Library/CsrfToken.php
+++ b/app/Library/CsrfToken.php
@@ -27,7 +27,13 @@ class CsrfToken
 
     public function getToken()
     {
-        $text = implode($this->delimiter, [time(), $this->fixed, Text::random(8)]);
+        $content = [
+            time() + $this->lifetime,
+            $this->fixed,
+            Text::random(8),
+        ];
+
+        $text = implode($this->delimiter, $content);
 
         return $this->crypt->encryptBase64($text);
     }
@@ -40,15 +46,11 @@ class CsrfToken
 
         $params = explode($this->delimiter, $text);
 
-        if (!isset($params[0]) || !isset($params[1]) || !isset($params[2])) {
+        if (count($params) != 3) {
             return false;
         }
 
-        if ($params[0] != intval($params[0]) || $params[1] != $this->fixed || strlen($params[2]) != 8) {
-            return false;
-        }
-
-        if (time() - $params[0] > $this->lifetime) {
+        if ($params[0] < time() || $params[1] != $this->fixed || strlen($params[2]) != 8) {
             return false;
         }
 
diff --git a/app/Library/Paginator/Adapter/XunSearch.php b/app/Library/Paginator/Adapter/XunSearch.php
index c8c93639..9f939263 100644
--- a/app/Library/Paginator/Adapter/XunSearch.php
+++ b/app/Library/Paginator/Adapter/XunSearch.php
@@ -59,7 +59,7 @@ class XunSearch extends PaginatorAdapter
 
         $this->config = $config;
         $this->_page = $config['page'] ?? 1;
-        $this->_limitRows = $config['limit'] ?? 15;
+        $this->_limitRows = $config['limit'] ?? 12;
 
         $query = new PaginatorQuery();
 
diff --git a/app/Library/Paginator/Query.php b/app/Library/Paginator/Query.php
index 6b00c357..d73a7709 100644
--- a/app/Library/Paginator/Query.php
+++ b/app/Library/Paginator/Query.php
@@ -42,12 +42,12 @@ class Query
 
     public function getSort()
     {
-        return $this->request->getQuery('sort', ['trim', 'string'], '');
+        return $this->request->getQuery('sort', ['trim', 'string']);
     }
 
     public function getBaseUrl()
     {
-        return $this->request->getQuery('_url', ['trim', 'string'], '');
+        return $this->request->getQuery('_url', ['trim', 'string']);
     }
 
     public function getParams(array $whitelist = [])
diff --git a/app/Library/SiteMap.php b/app/Library/Sitemap.php
similarity index 99%
rename from app/Library/SiteMap.php
rename to app/Library/Sitemap.php
index 1d4ad0b7..26dd7728 100644
--- a/app/Library/SiteMap.php
+++ b/app/Library/Sitemap.php
@@ -2,7 +2,7 @@
 
 namespace App\Library;
 
-class SiteMap
+class Sitemap
 {
 
     /**
diff --git a/app/Services/LiveNotify.php b/app/Services/LiveNotify.php
index daffe209..c2c8daee 100644
--- a/app/Services/LiveNotify.php
+++ b/app/Services/LiveNotify.php
@@ -128,8 +128,6 @@ class LiveNotify extends Service
 
     protected function sendBeginNotify(ChapterModel $chapter)
     {
-        $cache = $this->getCache();
-
         $redis = $this->getRedis();
 
         $key = $this->getNotifyKey();
@@ -141,7 +139,7 @@ class LiveNotify extends Service
 
     protected function getChapter($streamId)
     {
-        $id = (int)str_replace('chapter_', '', $streamId);
+        $id = str_replace('chapter_', '', $streamId);
 
         $chapterRepo = new ChapterRepo();
 
@@ -164,13 +162,9 @@ class LiveNotify extends Service
      */
     protected function checkSign($sign, $time)
     {
-        if (empty($sign) || empty($time)) {
-            return false;
-        }
+        if (!$sign || !$time) return false;
 
-        if ($time < time()) {
-            return false;
-        }
+        if ($time < time()) return false;
 
         $notify = $this->getSettings('live.notify');
 
diff --git a/app/Services/Smser.php b/app/Services/Smser.php
index 4dfde455..6a4d2efd 100644
--- a/app/Services/Smser.php
+++ b/app/Services/Smser.php
@@ -49,6 +49,10 @@ Abstract class Smser extends Service
 
             $result = $content['result'] == 0;
 
+            if ($result == false) {
+                $this->logger->error('Send Message Failed ' . $response);
+            }
+
         } catch (\Exception $e) {
 
             $this->logger->error('Send Message Exception ' . kg_json_encode([
@@ -71,7 +75,7 @@ Abstract class Smser extends Service
     {
         $template = json_decode($this->settings['template'], true);
 
-        return $template[$code]['id'] ?? null;
+        return $template[$code] ?? null;
     }
 
     protected function getSignature()
diff --git a/app/Validators/Carousel.php b/app/Validators/Slide.php
similarity index 100%
rename from app/Validators/Carousel.php
rename to app/Validators/Slide.php
diff --git a/public/static/admin/css/common.css b/public/static/admin/css/common.css
index 9ad13290..270217cc 100644
--- a/public/static/admin/css/common.css
+++ b/public/static/admin/css/common.css
@@ -21,6 +21,19 @@
     color: rgba(255, 255, 255, .7);
 }
 
+.layui-main .vditor-reset {
+    font: 14px Helvetica Neue, Helvetica, PingFang SC, Tahoma, Arial, sans-serif;
+    color: #666;
+}
+
+.vditor-reset ul > li {
+    list-style: disc;
+}
+
+.vditor-reset ol > li {
+    list-style: decimal;
+}
+
 .kg-body {
     padding: 15px;
 }
diff --git a/public/static/home/css/common.css b/public/static/home/css/common.css
index 557bacae..0e860da7 100644
--- a/public/static/home/css/common.css
+++ b/public/static/home/css/common.css
@@ -94,7 +94,6 @@
 
 .layui-main .vditor-reset {
     font: 14px Helvetica Neue, Helvetica, PingFang SC, Tahoma, Arial, sans-serif;
-    color: #666;
 }
 
 .vditor-reset ul > li {
diff --git a/public/static/home/js/chapter.read.js b/public/static/home/js/chapter.read.js
index a7934a95..df0769de 100644
--- a/public/static/home/js/chapter.read.js
+++ b/public/static/home/js/chapter.read.js
@@ -5,7 +5,7 @@ layui.use(['jquery', 'helper'], function () {
 
     var interval = null;
     var intervalTime = 15000;
-    var userId = window.koogua.user.id;
+    var userId = window.user.id;
     var chapterId = $('input[name="chapter.id"]').val();
     var planId = $('input[name="chapter.plan_id"]').val();
     var learningUrl = $('input[name="chapter.learning_url"]').val();
diff --git a/public/static/home/js/markdown.preview.js b/public/static/home/js/markdown.preview.js
index 33c0a30e..107427ec 100644
--- a/public/static/home/js/markdown.preview.js
+++ b/public/static/home/js/markdown.preview.js
@@ -1,7 +1,6 @@
-layui.use(['jquery', 'layer'], function () {
+layui.use(['jquery'], function () {
 
     var $ = layui.jquery;
-    var layer = layui.layer;
     var element = document.getElementById('preview');
     var markdown = element.innerHTML;
     var options = {
@@ -14,13 +13,8 @@ layui.use(['jquery', 'layer'], function () {
 
     Vditor.preview(element, markdown, options);
 
-    layer.ready(function () {
-        layer.load(1);
-    });
-
     setTimeout(function () {
         $(element).removeClass('layui-hide');
-        layer.closeAll();
-    }, 1000);
+    }, 500);
 
 });
\ No newline at end of file
diff --git a/scheduler.php b/scheduler.php
index d99cfc46..ddc820e2 100644
--- a/scheduler.php
+++ b/scheduler.php
@@ -52,7 +52,7 @@ $scheduler->php($script, $bin, ['--task' => 'revoke_vip', '--action' => 'main'])
 $scheduler->php($script, $bin, ['--task' => 'clean_token', '--action' => 'main'])
     ->daily(3, 17);
 
-$scheduler->php($script, $bin, ['--task' => 'site_map', '--action' => 'main'])
+$scheduler->php($script, $bin, ['--task' => 'sitemap', '--action' => 'main'])
     ->daily(4, 3);
 
 $scheduler->run();
\ No newline at end of file