diff --git a/CHANGELOG.md b/CHANGELOG.md
index b2af237b..2177671d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+### [v1.6.6](https://gitee.com/koogua/course-tencent-cloud/releases/v1.6.6)(2023-08-15)
+
 ### [v1.6.5](https://gitee.com/koogua/course-tencent-cloud/releases/v1.6.5)(2023-07-15)
 
 - 升级layui-v2.8.8
diff --git a/app/Http/Admin/Controllers/SessionController.php b/app/Http/Admin/Controllers/SessionController.php
index e554bf05..85d09e53 100644
--- a/app/Http/Admin/Controllers/SessionController.php
+++ b/app/Http/Admin/Controllers/SessionController.php
@@ -34,15 +34,13 @@ class SessionController extends \Phalcon\Mvc\Controller
             return $this->response->redirect(['for' => 'admin.index']);
         }
 
-        $sessionService = new SessionService();
-
-        $captcha = $sessionService->getSettings('captcha');
-
         if ($this->request->isPost()) {
 
             $this->checkHttpReferer();
             $this->checkCsrfToken();
 
+            $sessionService = new SessionService();
+
             $sessionService->login();
 
             $location = $this->url->get(['for' => 'admin.index']);
@@ -54,7 +52,6 @@ class SessionController extends \Phalcon\Mvc\Controller
 
         $this->view->pick('public/login');
         $this->view->setVar('app_info', $appInfo);
-        $this->view->setVar('captcha', $captcha);
     }
 
     /**
diff --git a/app/Http/Admin/Services/Session.php b/app/Http/Admin/Services/Session.php
index 53978d19..232ca195 100644
--- a/app/Http/Admin/Services/Session.php
+++ b/app/Http/Admin/Services/Session.php
@@ -9,7 +9,6 @@ namespace App\Http\Admin\Services;
 
 use App\Services\Auth\Admin as AdminAuth;
 use App\Validators\Account as AccountValidator;
-use App\Validators\Captcha as CaptchaValidator;
 
 class Session extends Service
 {
@@ -34,18 +33,6 @@ class Session extends Service
 
         $validator->checkIfAllowLogin($user);
 
-        $captcha = $this->getSettings('captcha');
-
-        /**
-         * 验证码是一次性的，放到最后检查，减少第三方调用
-         */
-        if ($captcha['enabled'] == 1) {
-
-            $validator = new CaptchaValidator();
-
-            $validator->checkCode($post['captcha']['ticket'], $post['captcha']['rand']);
-        }
-
         $this->auth->saveAuthInfo($user);
 
         $this->eventsManager->fire('Account:afterLogin', $this, $user);
diff --git a/app/Http/Admin/Services/Topic.php b/app/Http/Admin/Services/Topic.php
index 23195a4b..0c9310b7 100644
--- a/app/Http/Admin/Services/Topic.php
+++ b/app/Http/Admin/Services/Topic.php
@@ -68,9 +68,9 @@ class Topic extends Service
         $page = $pagerQuery->getPage();
         $limit = $pagerQuery->getLimit();
 
-        $pageRepo = new TopicRepo();
+        $topicRepo = new TopicRepo();
 
-        return $pageRepo->paginate($params, $sort, $page, $limit);
+        return $topicRepo->paginate($params, $sort, $page, $limit);
     }
 
     public function getTopic($id)
diff --git a/app/Http/Admin/Views/public/login.volt b/app/Http/Admin/Views/public/login.volt
index 72f0f2e3..60bfce0d 100644
--- a/app/Http/Admin/Views/public/login.volt
+++ b/app/Http/Admin/Views/public/login.volt
@@ -2,9 +2,6 @@
 
 {% block content %}
 
-    {% set disabled_submit = captcha.enabled == 1 ? 'disabled="disabled"' : '' %}
-    {% set disabled_class = captcha.enabled == 1 ? 'layui-btn-disabled' : '' %}
-
     <div class="kg-login-wrap">
         <div class="layui-card">
             <div class="layui-card-header">后台登录</div>
@@ -12,26 +9,15 @@
                 <form class="layui-form kg-login-form" method="POST" action="{{ url({'for':'admin.login'}) }}">
                     <div class="layui-form-item">
                         <label class="layui-icon layui-icon-username"></label>
-                        <input id="cl-account" class="layui-input" type="text" name="account" autocomplete="off" placeholder="手机 / 邮箱" lay-verify="required">
+                        <input class="layui-input" type="text" name="account" autocomplete="off" placeholder="手机 / 邮箱" lay-verify="required">
                     </div>
                     <div class="layui-form-item">
                         <label class="layui-icon layui-icon-password"></label>
                         <input class="layui-input" type="password" name="password" value="123456" autocomplete="off" placeholder="密码" lay-verify="required">
                     </div>
-                    {% if captcha.enabled == 1 %}
-                        <div id="captcha-block" class="layui-form-item">
-                            <div class="layui-input-block">
-                                <button id="cl-emit-btn" class="layui-btn layui-btn-fluid" type="button">点击完成验证</button>
-                            </div>
-                        </div>
-                    {% endif %}
                     <div class="layui-form-item">
                         <div class="layui-input-block">
-                            <button id="cl-submit-btn" class="layui-btn layui-btn-fluid {{ disabled_class }}" {{ disabled_submit }} lay-submit="true" lay-filter="go">立即登录</button>
-                            <input id="cl-captcha-enabled" type="hidden" value="{{ captcha.enabled }}">
-                            <input id="cl-captcha-appId" type="hidden" value="{{ captcha.app_id }}">
-                            <input id="cl-captcha-ticket" type="hidden" name="captcha[ticket]">
-                            <input id="cl-captcha-rand" type="hidden" name="captcha[rand]">
+                            <button class="layui-btn layui-btn-fluid" lay-submit="true" lay-filter="go">立即登录</button>
                         </div>
                     </div>
                 </form>
@@ -74,7 +60,6 @@
 
     {{ js_include('lib/jquery.min.js') }}
     {{ js_include('lib/jquery.buoyant.min.js') }}
-    {{ js_include('https://ssl.captcha.qq.com/TCaptcha.js', false) }}
 
 {% endblock %}
 
@@ -87,7 +72,7 @@
     </script>
 
     <script>
-        $('body').buoyant({
+        jquery('body').buoyant({
             elementClass: 'circles',
             numberOfItems: 20,
             minRadius: 5,
@@ -95,27 +80,4 @@
         });
     </script>
 
-    <script>
-        layui.use(['jquery'], function () {
-
-            var $ = layui.jquery;
-
-            if ($('#cl-captcha-enabled').val() === '1') {
-                var captcha = new TencentCaptcha(
-                    $('#cl-emit-btn')[0],
-                    $('#cl-captcha-appId').val(),
-                    function (res) {
-                        if (res.ret === 0) {
-                            $('#cl-captcha-ticket').val(res.ticket);
-                            $('#cl-captcha-rand').val(res.randstr);
-                            $('#cl-submit-btn').removeClass('layui-btn-disabled').removeAttr('disabled');
-                            $('#captcha-block').hide();
-                        }
-                    }
-                );
-            }
-
-        });
-    </script>
-
 {% endblock %}
\ No newline at end of file
diff --git a/app/Library/AppInfo.php b/app/Library/AppInfo.php
index 5a3db91c..db1f3483 100644
--- a/app/Library/AppInfo.php
+++ b/app/Library/AppInfo.php
@@ -16,7 +16,7 @@ class AppInfo
 
     protected $link = 'https://www.koogua.com';
 
-    protected $version = '1.6.5';
+    protected $version = '1.6.6';
 
     public function __get($name)
     {
diff --git a/app/Traits/Auth.php b/app/Traits/Auth.php
index 920cd1b2..553385d5 100644
--- a/app/Traits/Auth.php
+++ b/app/Traits/Auth.php
@@ -30,7 +30,7 @@ trait Auth
             return $this->getGuestUser();
         }
 
-        if ($cache == false) {
+        if (!$cache) {
             $userRepo = new UserRepo();
             $user = $userRepo->findById($authUser['id']);
         } else {
@@ -54,7 +54,7 @@ trait Auth
 
         $validator->checkAuthUser($authUser['id']);
 
-        if ($cache == false) {
+        if (!$cache) {
             $userRepo = new UserRepo();
             $user = $userRepo->findById($authUser['id']);
         } else {
@@ -74,6 +74,7 @@ trait Auth
 
         $user->id = 0;
         $user->name = 'guest';
+        $user->avatar = kg_cos_user_avatar_url(null);
 
         return $user;
     }