diff --git a/app/index/controller/IndexController.php b/app/index/controller/IndexController.php
index 4e69814..673cf00 100644
--- a/app/index/controller/IndexController.php
+++ b/app/index/controller/IndexController.php
@@ -374,7 +374,7 @@ class IndexController extends BaseController
         try {
             // 验证上传的文件
             validate([
-                'image' => 'filesize:51200|fileExt:jpg,png,gif,jpeg'
+                'image' => 'filesize:51200|fileExt:jpg,png,gif,jpeg,webp'
             ])->check($file);
 
             // 存储文件到public磁盘的uploads目录
diff --git a/app/index/controller/UserController.php b/app/index/controller/UserController.php
index 7594d3d..40a01c0 100644
--- a/app/index/controller/UserController.php
+++ b/app/index/controller/UserController.php
@@ -140,34 +140,20 @@ class UserController extends BaseController
     public function logout()
     {
         try {
-            // 记录退出日志
             Log::record('用户退出登录', 'info');
-
-            // 1. 清除所有 session
+            
+            // 清除所有会话和缓存数据
             session(null);
-
-            // 2. 清除所有 cookie
-            // 正确的删除 cookie 方式
-            cookie('user_id', null, ['expire' => -1]);
-            cookie('user_account', null, ['expire' => -1]);
-            cookie('user_name', null, ['expire' => -1]);
-            cookie('user_avatar', null, ['expire' => -1]);
-            cookie('expire_time', null, ['expire' => -1]);
-            cookie('is_auto_login', null, ['expire' => -1]);
-            cookie('auto_login_attempted', null, ['expire' => -1]);
-
-            // 3. 清除缓存
             Cache::tag('user_cache')->clear();
+            
+            // 清除所有cookie
+            $cookies = ['user_id', 'user_account', 'user_name', 'user_avatar', 
+                       'expire_time', 'is_auto_login', 'auto_login_attempted', 'PHPSESSID'];
+            foreach ($cookies as $cookie) {
+                cookie($cookie, null, ['expire' => -1]);
+            }
 
-            // 4. 返回成功状态，并告诉前端清除 localStorage
-            return json([
-                'code' => 0,
-                'msg' => '退出成功',
-                'data' => [
-                    'clear_storage' => true
-                ]
-            ]);
-
+            return json(['code' => 0, 'msg' => '退出成功', 'data' => ['clear_storage' => true]]);
         } catch (\Exception $e) {
             Log::record('退出登录失败：' . $e->getMessage(), 'error');
             return json(['code' => 1, 'msg' => '退出失败：' . $e->getMessage()]);
@@ -395,8 +381,8 @@ class UserController extends BaseController
             }
 
             $ext = strtolower($file->getOriginalExtension());
-            if (!in_array($ext, ['jpg', 'jpeg', 'png', 'gif'])) {
-                return json(['code' => 1, 'msg' => '只支持jpg、jpeg、png、gif格式的图片']);
+            if (!in_array($ext, ['jpg', 'jpeg', 'png', 'gif', 'webp'])) {
+                return json(['code' => 1, 'msg' => '只支持jpg、jpeg、png、gif、webp格式的图片']);
             }
 
             // 移动到指定目录
diff --git a/app/index/view/user/component/avatar.php b/app/index/view/user/component/avatar.php
index fc34ca0..940e174 100644
--- a/app/index/view/user/component/avatar.php
+++ b/app/index/view/user/component/avatar.php
@@ -1,12 +1,12 @@
 <div class="avatar-section">
     <h2 class="section-title">修改头像</h2>
-    
+
     <div class="avatar-upload-container">
         <div class="current-avatar">
             <img src="{$user.avatar|default='/static/images/avatar.png'}" alt="当前头像" id="currentAvatar">
             <p class="avatar-tip">当前头像</p>
         </div>
-        
+
         <div class="upload-area" id="uploadArea">
             <i class="layui-icon layui-icon-upload"></i>
             <p>点击或拖拽图片到此处上传</p>
@@ -28,228 +28,241 @@
 </div>
 
 <style>
-.avatar-section {
-    max-width: 800px;
-    margin: 0 auto;
-}
+    .avatar-section {
+        max-width: 800px;
+        margin: 0 auto;
+    }
 
-.section-title {
-    font-size: 20px;
-    font-weight: 600;
-    color: #333;
-    margin-bottom: 24px;
-    padding-bottom: 16px;
-    border-bottom: 1px solid #f0f0f0;
-}
+    .section-title {
+        font-size: 20px;
+        font-weight: 600;
+        color: #333;
+        margin-bottom: 24px;
+        padding-bottom: 16px;
+        border-bottom: 1px solid #f0f0f0;
+    }
 
-.avatar-upload-container {
-    display: flex;
-    gap: 40px;
-    margin-bottom: 32px;
-}
-
-.current-avatar {
-    text-align: center;
-}
-
-.current-avatar img {
-    width: 160px;
-    height: 160px;
-    border-radius: 50%;
-    object-fit: cover;
-    border: 3px solid #f5f5f5;
-}
-
-.avatar-tip {
-    margin-top: 12px;
-    color: #666;
-}
-
-.upload-area {
-    flex: 1;
-    border: 2px dashed #d9d9d9;
-    border-radius: 8px;
-    padding: 40px;
-    text-align: center;
-    cursor: pointer;
-    transition: all 0.3s;
-}
-
-.upload-area:hover {
-    border-color: #1677ff;
-}
-
-.upload-area .layui-icon {
-    font-size: 48px;
-    color: #999;
-    margin-bottom: 16px;
-}
-
-.upload-area p {
-    margin: 8px 0;
-    color: #666;
-}
-
-.upload-tip {
-    font-size: 12px;
-    color: #999;
-}
-
-.avatar-preview {
-    margin-top: 32px;
-    padding-top: 32px;
-    border-top: 1px solid #f0f0f0;
-}
-
-.avatar-preview h3 {
-    font-size: 16px;
-    color: #333;
-    margin-bottom: 16px;
-}
-
-.preview-container {
-    text-align: center;
-    margin-bottom: 24px;
-}
-
-.preview-container img {
-    max-width: 200px;
-    max-height: 200px;
-    border-radius: 8px;
-}
-
-.preview-actions {
-    text-align: center;
-}
-
-.preview-actions .layui-btn {
-    margin: 0 8px;
-}
-
-@media (max-width: 768px) {
     .avatar-upload-container {
-        flex-direction: column;
-        gap: 24px;
+        display: flex;
+        gap: 40px;
+        margin-bottom: 32px;
     }
-    
+
+    .current-avatar {
+        text-align: center;
+    }
+
     .current-avatar img {
-        width: 120px;
-        height: 120px;
+        width: 160px;
+        height: 160px;
+        border-radius: 50%;
+        object-fit: cover;
+        border: 3px solid #f5f5f5;
     }
-    
+
+    .avatar-tip {
+        margin-top: 12px;
+        color: #666;
+    }
+
     .upload-area {
-        padding: 24px;
+        flex: 1;
+        border: 2px dashed #d9d9d9;
+        border-radius: 8px;
+        padding: 40px;
+        text-align: center;
+        cursor: pointer;
+        transition: all 0.3s;
+    }
+
+    .upload-area:hover {
+        border-color: #1677ff;
+    }
+
+    .upload-area .layui-icon {
+        font-size: 48px;
+        color: #999;
+        margin-bottom: 16px;
+    }
+
+    .upload-area p {
+        margin: 8px 0;
+        color: #666;
+    }
+
+    .upload-tip {
+        font-size: 12px;
+        color: #999;
+    }
+
+    .avatar-preview {
+        margin-top: 32px;
+        padding-top: 32px;
+        border-top: 1px solid #f0f0f0;
+    }
+
+    .avatar-preview h3 {
+        font-size: 16px;
+        color: #333;
+        margin-bottom: 16px;
+    }
+
+    .preview-container {
+        text-align: center;
+        margin-bottom: 24px;
+    }
+
+    .preview-container img {
+        max-width: 200px;
+        max-height: 200px;
+        border-radius: 8px;
+    }
+
+    .preview-actions {
+        text-align: center;
+    }
+
+    .preview-actions .layui-btn {
+        margin: 0 8px;
+    }
+
+    @media (max-width: 768px) {
+        .avatar-upload-container {
+            flex-direction: column;
+            gap: 24px;
+        }
+
+        .current-avatar img {
+            width: 120px;
+            height: 120px;
+        }
+
+        .upload-area {
+            padding: 24px;
+        }
     }
-}
 </style>
 
 <script>
-layui.use(['upload', 'layer'], function(){
-    var upload = layui.upload;
-    var layer = layui.layer;
-    
-    // 点击上传区域触发文件选择
-    document.getElementById('uploadArea').addEventListener('click', function() {
-        document.getElementById('avatarFile').click();
-    });
-    
-    // 处理文件选择
-    document.getElementById('avatarFile').addEventListener('change', function(e) {
-        var file = e.target.files[0];
-        if (!file) return;
-        
-        // 检查文件类型
-        if (!['image/jpeg', 'image/png', 'image/gif'].includes(file.type)) {
-            layer.msg('请上传 jpg、png 或 gif 格式的图片');
-            return;
-        }
-        
-        // 检查文件大小
-        if (file.size > 2 * 1024 * 1024) {
-            layer.msg('图片大小不能超过 2MB');
-            return;
-        }
-        
-        // 预览图片
-        var reader = new FileReader();
-        reader.onload = function(e) {
-            document.getElementById('previewImage').src = e.target.result;
-            document.querySelector('.avatar-preview').style.display = 'block';
-        };
-        reader.readAsDataURL(file);
-    });
-    
-    // 确认上传
-    document.getElementById('confirmUpload').addEventListener('click', function() {
-        var file = document.getElementById('avatarFile').files[0];
-        if (!file) return;
-        
-        var formData = new FormData();
-        formData.append('avatar', file);
-        
-        // 显示上传中
-        var loadIndex = layer.load(2);
-        
-        // 发送上传请求
-        fetch('/index/user/update_avatar', {
-            method: 'POST',
-            body: formData
-        })
-        .then(response => response.json())
-        .then(data => {
-            layer.close(loadIndex);
-            if (data.code === 0) {
-                layer.msg('头像上传成功', {icon: 1});
-                // 更新当前头像显示
-                document.getElementById('currentAvatar').src = data.data.url;
-                // 隐藏预览区域
-                document.querySelector('.avatar-preview').style.display = 'none';
-                // 清空文件输入
-                document.getElementById('avatarFile').value = '';
-            } else {
-                layer.msg(data.msg || '上传失败', {icon: 2});
+    layui.use(['upload', 'layer'], function () {
+        var upload = layui.upload;
+        var layer = layui.layer;
+
+        // 点击上传区域触发文件选择
+        document.getElementById('uploadArea').addEventListener('click', function () {
+            document.getElementById('avatarFile').click();
+        });
+
+        // 处理文件选择
+        document.getElementById('avatarFile').addEventListener('change', function (e) {
+            var file = e.target.files[0];
+            if (!file) return;
+
+            // 检查文件类型
+            if (!['image/jpeg', 'image/png', 'image/gif', 'image/webp'].includes(file.type)) {
+                layer.msg('请上传 jpg、png、webp 或 gif 格式的图片');
+                return;
             }
-        })
-        .catch(error => {
-            layer.close(loadIndex);
-            layer.msg('上传失败，请重试', {icon: 2});
+
+            // 检查文件大小
+            if (file.size > 2 * 1024 * 1024) {
+                layer.msg('图片大小不能超过 2MB');
+                return;
+            }
+
+            // 预览图片
+            var reader = new FileReader();
+            reader.onload = function (e) {
+                document.getElementById('previewImage').src = e.target.result;
+                document.querySelector('.avatar-preview').style.display = 'block';
+            };
+            reader.readAsDataURL(file);
+        });
+
+        // 确认上传
+        document.getElementById('confirmUpload').addEventListener('click', function () {
+            var file = document.getElementById('avatarFile').files[0];
+            if (!file) return;
+
+            var formData = new FormData();
+            formData.append('avatar', file);
+
+            // 显示上传中
+            var loadIndex = layer.load(2);
+
+            // 发送上传请求
+            fetch('/index/user/update_avatar', {
+                method: 'POST',
+                body: formData
+            })
+                .then(response => response.json())
+                .then(data => {
+                    layer.close(loadIndex);
+                    if (data.code === 0) {
+                        // 更新cookie中的头像
+                        document.cookie = "user_avatar=" + data.data.url + "; path=/";
+
+                        // 更新localStorage中的头像
+                        localStorage.setItem('user_avatar', data.data.url);
+
+                        layer.msg('头像上传成功', {
+                            icon: 1,
+                            time: 1000
+                        }, function () {
+                            // 更新当前头像显示
+                            document.getElementById('currentAvatar').src = data.data.url;
+                            // 隐藏预览区域
+                            document.querySelector('.avatar-preview').style.display = 'none';
+                            // 清空文件输入
+                            document.getElementById('avatarFile').value = '';
+
+                            // 刷新页面以更新所有显示的头像
+                            window.location.reload();
+                        });
+                    } else {
+                        layer.msg(data.msg || '上传失败', { icon: 2 });
+                    }
+                })
+                .catch(error => {
+                    layer.close(loadIndex);
+                    layer.msg('上传失败，请重试', { icon: 2 });
+                });
+        });
+
+        // 取消上传
+        document.getElementById('cancelUpload').addEventListener('click', function () {
+            document.querySelector('.avatar-preview').style.display = 'none';
+            document.getElementById('avatarFile').value = '';
+        });
+
+        // 拖拽上传
+        var uploadArea = document.getElementById('uploadArea');
+
+        uploadArea.addEventListener('dragover', function (e) {
+            e.preventDefault();
+            this.style.borderColor = '#1677ff';
+        });
+
+        uploadArea.addEventListener('dragleave', function (e) {
+            e.preventDefault();
+            this.style.borderColor = '#d9d9d9';
+        });
+
+        uploadArea.addEventListener('drop', function (e) {
+            e.preventDefault();
+            this.style.borderColor = '#d9d9d9';
+
+            var file = e.dataTransfer.files[0];
+            if (!file) return;
+
+            // 触发文件选择事件
+            var dataTransfer = new DataTransfer();
+            dataTransfer.items.add(file);
+            document.getElementById('avatarFile').files = dataTransfer.files;
+
+            // 手动触发change事件
+            var event = new Event('change');
+            document.getElementById('avatarFile').dispatchEvent(event);
         });
     });
-    
-    // 取消上传
-    document.getElementById('cancelUpload').addEventListener('click', function() {
-        document.querySelector('.avatar-preview').style.display = 'none';
-        document.getElementById('avatarFile').value = '';
-    });
-    
-    // 拖拽上传
-    var uploadArea = document.getElementById('uploadArea');
-    
-    uploadArea.addEventListener('dragover', function(e) {
-        e.preventDefault();
-        this.style.borderColor = '#1677ff';
-    });
-    
-    uploadArea.addEventListener('dragleave', function(e) {
-        e.preventDefault();
-        this.style.borderColor = '#d9d9d9';
-    });
-    
-    uploadArea.addEventListener('drop', function(e) {
-        e.preventDefault();
-        this.style.borderColor = '#d9d9d9';
-        
-        var file = e.dataTransfer.files[0];
-        if (!file) return;
-        
-        // 触发文件选择事件
-        var dataTransfer = new DataTransfer();
-        dataTransfer.items.add(file);
-        document.getElementById('avatarFile').files = dataTransfer.files;
-        
-        // 手动触发change事件
-        var event = new Event('change');
-        document.getElementById('avatarFile').dispatchEvent(event);
-    });
-});
-</script>
+</script>
\ No newline at end of file
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