diff --git a/channel/web/chat.html b/channel/web/chat.html
index 5186a80..1b1111c 100644
--- a/channel/web/chat.html
+++ b/channel/web/chat.html
@@ -197,27 +197,54 @@
         }
 
         .user-container {
-            width: 100%;
-            margin: 0;
-            padding: 20px;
-            border-bottom: 1px solid var(--border-color);
+            display: flex;
+            justify-content: flex-end;
+            margin: 10px 0;
+            padding: 0 15px;
+        }
+
+        .user-container .message-container {
+            flex-direction: row-reverse;
+            text-align: right;
+        }
+
+        .user-container .avatar {
+            margin-left: 15px;
+            margin-right: 0;
+        }
+
+        .user-container .message-content {
+            align-items: flex-end;
+        }
+
+        .user-container .message {
+            background-color: var(--bot-msg-bg);
+            border-radius: 10px;
+            margin-bottom: 8px;
+        }
+
+        .bot-container .message {
+            background-color: var(--bot-msg-bg);
+            border-radius: 10px 10px 10px 0;
+            margin-bottom: 8px;
         }
 
         .avatar {
-            width: 30px;
-            height: 30px;
-            border-radius: 2px;
+            width: 36px;
+            height: 36px;
+            border-radius: 50%;
+            background-color: #e0e0e0;
             display: flex;
             align-items: center;
             justify-content: center;
             margin-right: 15px;
             flex-shrink: 0;
-            margin-top: 4px;
         }
 
         .bot-avatar {
             background-color: #10a37f;
             color: white;
+            margin-top: 4px; /* 微调头像位置，使其与文本更好地对齐 */
         }
 
         .user-avatar {
@@ -226,17 +253,24 @@
         }
 
         .message-content {
+            display: flex;
+            flex-direction: column;
             flex: 1;
-            line-height: 1.6;
-            padding-top: 2px;
-            text-align: left;
+            padding-top: 0; /* 移除顶部内边距 */
+        }
+
+        .bot-container .message-content {
+            align-items: flex-start;
+            margin-top: 0; /* 确保没有顶部外边距 */
         }
 
         .message {
-            width: 100%;
+            padding: 12px 16px;
+            border-radius: 10px;
+            margin-top: 0; /* 移除顶部外边距 */
+            margin-bottom: 8px;
             word-wrap: break-word;
-            white-space: pre-wrap;
-            line-height: 1.3;
+            overflow-wrap: break-word;
         }
 
         .message p {
@@ -300,7 +334,20 @@
         .timestamp {
             font-size: 0.75rem;
             color: var(--text-light);
-            margin-top: 5px;
+            padding-left: 2px;
+        }
+
+        /* 为机器人消息的时间戳添加左对齐 */
+        .bot-container .timestamp {
+            align-self: flex-start;
+            margin-left: 15px;
+        }
+
+        /* 为用户消息的时间戳添加右对齐 */
+        .user-container .timestamp {
+            align-self: flex-end;
+            padding-right: 2px;
+            padding-left: 0;
         }
 
         #input-container {
@@ -519,6 +566,8 @@
             position: relative;
             top: -5px;
             left: -10px;
+            margin-top: 10px;
+            margin-bottom: 5px;
         }
 
         .typing-indicator span {
@@ -571,6 +620,30 @@
             background-color: rgba(255, 255, 255, 0.1);
             font-weight: bold;
         }
+
+        /* 基础消息样式 */
+        .message {
+            border-radius: 10px;
+            word-wrap: break-word;
+            overflow-wrap: break-word;
+        }
+
+        /* 用户消息样式 */
+        .user-container .message {
+            background-color: var(--bot-msg-bg);
+            border-radius: 10px;
+            margin-bottom: 8px;
+            padding: 12px 16px;
+        }
+
+        /* 机器人消息样式 */
+        .bot-container .message {
+            background-color: var(--bot-msg-bg);
+            border-radius: 10px 10px 10px 0;
+            margin-bottom: 8px;
+            padding: 0px 16px 12px 16px;
+            margin-top: 0;
+        }
     </style>
 </head>
 <body>
@@ -689,121 +762,10 @@
             clearChat();
         });
 
-        // 清空聊天记录并显示欢迎屏幕
-        function clearChat() {
-            // 清空消息区域
-            messagesDiv.innerHTML = '';
-            
-            // 创建欢迎屏幕
-            const newWelcomeScreen = document.createElement('div');
-            newWelcomeScreen.id = 'welcome-screen';
-            newWelcomeScreen.innerHTML = `
-                <h1 id="welcome-title">AI 助手</h1>
-                <p id="welcome-subtitle">我可以回答问题、提供信息或者帮助您完成各种任务</p>
-                
-                <div class="examples-container">
-                    <div class="example-card">
-                        <div class="example-title">解释复杂概念</div>
-                        <div class="example-text">用简单的语言解释量子计算</div>
-                    </div>
-                    <div class="example-card">
-                        <div class="example-title">创意写作</div>
-                        <div class="example-text">写一个关于未来城市的短篇故事</div>
-                    </div>
-                    <div class="example-card">
-                        <div class="example-title">编程帮助</div>
-                        <div class="example-text">如何用Python写一个简单的网络爬虫</div>
-                    </div>
-                </div>
-            `;
-            
-            // 设置样式
-            newWelcomeScreen.style.display = 'flex';
-            newWelcomeScreen.style.flexDirection = 'column';
-            newWelcomeScreen.style.alignItems = 'center';
-            newWelcomeScreen.style.justifyContent = 'center';
-            newWelcomeScreen.style.height = '100%';
-            newWelcomeScreen.style.textAlign = 'center';
-            newWelcomeScreen.style.padding = '20px';
-            
-            // 添加到DOM
-            messagesDiv.appendChild(newWelcomeScreen);
-            
-            // 绑定示例卡片事件
-            newWelcomeScreen.querySelectorAll('.example-card').forEach(card => {
-                card.addEventListener('click', function() {
-                    const exampleText = this.querySelector('.example-text').textContent;
-                    input.value = exampleText;
-                    input.dispatchEvent(new Event('input'));
-                    input.focus();
-                });
-            });
-            
-            // 清空localStorage中的消息 - 使用用户ID作为键
-            localStorage.setItem(`chatMessages_${userId}`, JSON.stringify([]));
-            
-            // 在移动设备上关闭侧边栏
-            if (window.innerWidth <= 768) {
-                sidebar.classList.remove('active');
-            }
-        }
-
-        // 从localStorage加载消息 - 使用用户ID作为键
-        function loadMessagesFromLocalStorage() {
-            try {
-                return JSON.parse(localStorage.getItem(`chatMessages_${userId}`) || '[]');
-            } catch (error) {
-                console.error('Error loading messages from localStorage:', error);
-                return [];
-            }
-        }
-
-        // 保存消息到localStorage - 使用用户ID作为键
-        function saveMessageToLocalStorage(message) {
-            try {
-                const messages = loadMessagesFromLocalStorage();
-                messages.push(message);
-                localStorage.setItem(`chatMessages_${userId}`, JSON.stringify(messages));
-            } catch (error) {
-                console.error('Error saving message to localStorage:', error);
-            }
-        }
-
-        // 初始化代码
-        document.addEventListener('DOMContentLoaded', function() {
-            // 移除原始欢迎屏幕
-            const originalWelcomeScreen = document.getElementById('welcome-screen');
-            if (originalWelcomeScreen) {
-                originalWelcomeScreen.remove();
-            }
-            
-            // 清空消息区域，确保不会重复显示消息
-            messagesDiv.innerHTML = '';
-            
-            // 加载消息
-            const messages = loadMessagesFromLocalStorage();
-            
-            if (messages.length === 0) {
-                // 如果没有消息，显示欢迎屏幕
-                clearChat();
-            } else {
-                // 显示现有消息
-                messages.forEach(msg => {
-                    if (msg.role === 'user') {
-                        // 使用不保存到localStorage的版本显示消息
-                        displayUserMessage(msg.content, new Date(msg.timestamp));
-                    } else if (msg.role === 'assistant') {
-                        // 使用不保存到localStorage的版本显示消息
-                        displayBotMessage(msg.content, new Date(msg.timestamp));
-                    }
-                });
-            }
-        });
-
         // 发送按钮点击事件
-        sendButton.onclick = function() {
+        sendButton.addEventListener('click', function() {
             sendMessage();
-        };
+        });
 
         // 输入框按键事件
         input.addEventListener('keydown', function(event) {
@@ -843,6 +805,11 @@
                 // 添加一个等待中的机器人消息
                 const loadingContainer = addLoadingMessage();
                 
+                // 清空输入框并重置高度 - 移到这里，确保发送后立即清空
+                input.value = '';
+                input.style.height = '52px';
+                sendButton.disabled = true;
+                
                 // 发送到服务器并等待响应
                 fetch('/message', {
                     method: 'POST',
@@ -882,11 +849,6 @@
                     // 显示错误消息
                     addBotMessage("抱歉，发生了错误，请稍后再试。", new Date());
                 });
-                
-                // 清空输入框并重置高度
-                input.value = '';
-                input.style.height = '52px';
-                sendButton.disabled = true;
             }
         }
 
@@ -1134,6 +1096,86 @@
 
         // 初始化
         input.focus();
+
+        // 清空聊天记录并显示欢迎屏幕
+        function clearChat() {
+            // 清空消息区域
+            messagesDiv.innerHTML = '';
+            
+            // 创建欢迎屏幕
+            const newWelcomeScreen = document.createElement('div');
+            newWelcomeScreen.id = 'welcome-screen';
+            newWelcomeScreen.innerHTML = `
+                <h1 id="welcome-title">AI 助手</h1>
+                <p id="welcome-subtitle">我可以回答问题、提供信息或者帮助您完成各种任务</p>
+                
+                <div class="examples-container">
+                    <div class="example-card">
+                        <div class="example-title">解释复杂概念</div>
+                        <div class="example-text">用简单的语言解释量子计算</div>
+                    </div>
+                    <div class="example-card">
+                        <div class="example-title">创意写作</div>
+                        <div class="example-text">写一个关于未来城市的短篇故事</div>
+                    </div>
+                    <div class="example-card">
+                        <div class="example-title">编程帮助</div>
+                        <div class="example-text">如何用Python写一个简单的网络爬虫</div>
+                    </div>
+                </div>
+            `;
+            
+            // 设置样式
+            newWelcomeScreen.style.display = 'flex';
+            newWelcomeScreen.style.flexDirection = 'column';
+            newWelcomeScreen.style.alignItems = 'center';
+            newWelcomeScreen.style.justifyContent = 'center';
+            newWelcomeScreen.style.height = '100%';
+            newWelcomeScreen.style.textAlign = 'center';
+            newWelcomeScreen.style.padding = '20px';
+            
+            // 添加到DOM
+            messagesDiv.appendChild(newWelcomeScreen);
+            
+            // 绑定示例卡片事件
+            newWelcomeScreen.querySelectorAll('.example-card').forEach(card => {
+                card.addEventListener('click', function() {
+                    const exampleText = this.querySelector('.example-text').textContent;
+                    input.value = exampleText;
+                    input.dispatchEvent(new Event('input'));
+                    input.focus();
+                });
+            });
+            
+            // 清空localStorage中的消息 - 使用用户ID作为键
+            localStorage.setItem(`chatMessages_${userId}`, JSON.stringify([]));
+            
+            // 在移动设备上关闭侧边栏
+            if (window.innerWidth <= 768) {
+                sidebar.classList.remove('active');
+            }
+        }
+
+        // 从localStorage加载消息 - 使用用户ID作为键
+        function loadMessagesFromLocalStorage() {
+            try {
+                return JSON.parse(localStorage.getItem(`chatMessages_${userId}`) || '[]');
+            } catch (error) {
+                console.error('Error loading messages from localStorage:', error);
+                return [];
+            }
+        }
+
+        // 保存消息到localStorage - 使用用户ID作为键
+        function saveMessageToLocalStorage(message) {
+            try {
+                const messages = loadMessagesFromLocalStorage();
+                messages.push(message);
+                localStorage.setItem(`chatMessages_${userId}`, JSON.stringify(messages));
+            } catch (error) {
+                console.error('Error saving message to localStorage:', error);
+            }
+        }
     </script>
 </body>
 </html>
\ No newline at end of file
diff --git a/channel/web/web_channel.py b/channel/web/web_channel.py
index c63571e..aac4f68 100644
--- a/channel/web/web_channel.py
+++ b/channel/web/web_channel.py
@@ -13,7 +13,6 @@ from config import conf
 import os
 import mimetypes  # 添加这行来处理MIME类型
 
-
 class WebMessage(ChatMessage):
     def __init__(
         self,
@@ -57,7 +56,7 @@ class WebChannel(ChatChannel):
             if reply.type in self.NOT_SUPPORT_REPLYTYPE:
                 logger.warning(f"Web channel doesn't support {reply.type} yet")
                 return
-            
+                
             # 获取用户ID
             user_id = context.get("receiver", None)
             if not user_id: