diff --git a/.trae/TODO.md b/.trae/TODO.md
new file mode 100644
index 0000000..3846d80
--- /dev/null
+++ b/.trae/TODO.md
@@ -0,0 +1,7 @@
+# TODO:
+
+- [x] 1: 分析控制台输出，确定API返回数据的正确结构 (priority: High)
+- [x] 2: 修复initChat方法中AI消息内容的数据映射 (priority: High)
+- [x] 3: 修复loadMoreHistory方法中的数据映射 (priority: High)
+- [x] 4: 移除调试代码，恢复正常UI显示 (priority: Medium)
+- [x] 5: 测试修复后的AI消息显示功能 (priority: Medium)
diff --git a/api/aiChat/ai_index.js b/api/aiChat/ai_index.js
index 9a813c5..0391abe 100644
--- a/api/aiChat/ai_index.js
+++ b/api/aiChat/ai_index.js
@@ -1,38 +1,78 @@
-// src/api/index.js
+// src/api/ai_index.js
 // import request from '@/utils/ai_request.js'
-import request from "../../utils/ai_request";
+import request from "@/utils/ai_request.js";
 
 // 获取历史
 export const getHistory = ({
 	conversationId,
 	user,
-	limit = 20
+	limit = 20,
+	beforeId
 }) => {
+	const params = {
+		conversationId,
+		user,
+		limit
+	};
+
+	// 如果有beforeId参数，添加到请求中
+	if (beforeId) {
+		params.beforeId = beforeId;
+	}
+
 	return request({
 		url: '/aitutor/aichat/getMessagesToUser',
 		method: 'get',
-		params: {
-			conversationId,
-			user,
-			limit
-		}
-		// headers: {
-		// 	Authorization: 'Bearer eyJhbGciOiJIUzUxMiJ9.eyJsb2dpbl91c2VyX2tleSI6IjBmMTY3NmY2LTgwOGMtNGUwMC04NDJjLWIwNmY1ZTM5NzJlNCJ9.VVc6OwQ-Xn9pxzYbPhlCpvDp6TwESS00gJi9IXUEIbFw4RFACZDmYCYjQ7voTM4fppy9SAMJCWT-L7Uy-K1eqw'
-		// }
+		params
 	});
 };
 
+
+// export const getHistory = ({
+// 	conversationId,
+// 	user,
+// 	limit = 20
+// }) => {
+// 	return request({
+// 		url: '/aitutor/aichat/getMessagesToUser',
+// 		method: 'get',
+// 		params: {
+// 			conversationId,
+// 			user,
+// 			limit
+// 		}
+// 		// headers: {
+// 		// 	Authorization: 'Bearer eyJhbGciOiJIUzUxMiJ9.eyJsb2dpbl91c2VyX2tleSI6IjBmMTY3NmY2LTgwOGMtNGUwMC04NDJjLWIwNmY1ZTM5NzJlNCJ9.VVc6OwQ-Xn9pxzYbPhlCpvDp6TwESS00gJi9IXUEIbFw4RFACZDmYCYjQ7voTM4fppy9SAMJCWT-L7Uy-K1eqw'
+// 		// }
+// 	});
+// };
+
 // 点赞/点踩  action: 1 点赞  0 点踩
 export const sendFeedback = ({
 	messageId,
-	action
+	action,
+	user
 }) => {
 	return request({
-		url: '/api/chat/feedback',
+		url: '/aitutor/aichat/feedback',
 		method: 'post',
 		data: {
-			messageId,
-			action
+			message_id: messageId,
+			rating: action === 1 ? 'like' : 'dislike', // 添加rating参数
+			user
 		}
 	});
-};
\ No newline at end of file
+};
+// export const sendFeedback = ({
+// 	messageId,
+// 	action
+// }) => {
+// 	return request({
+// 		url: '/api/chat/feedback',
+// 		method: 'post',
+// 		data: {
+// 			messageId,
+// 			action
+// 		}
+// 	});
+// };
\ No newline at end of file
diff --git a/components/aiChat/HistoryDrawer.vue b/components/aiChat/HistoryDrawer.vue
index d8bd244..294c588 100644
--- a/components/aiChat/HistoryDrawer.vue
+++ b/components/aiChat/HistoryDrawer.vue
@@ -50,362 +50,350 @@
 </template>
 
 <script>
-	import {
-		getHistory
-	} from '../../api/aiChat/ai_index.js'; // 历史记录API
+import {
+	getHistory
+} from '../../api/aiChat/ai_index.js';
 
-	export default {
-		name: 'HistoryDrawer',
-		props: {
-			visible: Boolean // 控制抽屉显示
+export default {
+	name: 'HistoryDrawer',
+	props: {
+		visible: Boolean
+	},
+	data() {
+		return {
+			historyRecords: [],
+			filteredRecords: [],
+			searchKeyword: '', // 移除了重复定义
+			loading: false // 新增loading状态
+		};
+	},
+	watch: {
+		visible(newVal) {
+			if (newVal) this.loadHistoryRecords();
+			else this.clearSearch();
+		}
+	},
+	methods: {
+		closeDrawer() {
+			this.$emit('close');
 		},
-		data() {
-			return {
-				historyRecords: [], // 原始历史记录
-				filteredRecords: [], // 过滤后的历史记录
-				searchKeyword: '' // 搜索关键词
-			};
-		},
-		watch: {
-			// 监听visible变化，显示时加载记录
-			visible(newVal) {
-				if (newVal) this.loadHistoryRecords();
-				else this.clearSearch();
-			}
-		},
-		methods: {
-			// 关闭抽屉
-			closeDrawer() {
-				this.$emit('close');
-			},
 
-			/* ========== 1. 读本地缓存兜底 ========== */
-			renderLocal(list) {
-				// 将本地缓存的消息按日期分组
+		async loadHistoryRecords() {
+			this.loading = true;
+			try {
+				// 1. 获取当前用户学号
+				const userNo = uni.getStorageSync('stuNo');
+				if (!userNo) throw new Error('未获取到用户学号');
+
+				// 2. 调用接口获取数据
+				const res = await getHistory({
+					user: userNo,
+					conversationId: '',
+					limit: 20
+				});
+				console.log('接口响应:', res);
+
+				// 3. 处理响应数据 - 修正数据结构解析
+				const list = Array.isArray(res.data?.data) ? res.data.data : [];
+				console.log('解析后的数据列表:', list);
+
+				// 4. 分组处理
 				const groupMap = {};
-				list.forEach((m, idx) => {
-					const date = new Date();
-					const formatted = {
+				list.forEach(item => {
+					// 修正字段映射
+					const timestamp = item.created_at || item.create_time || item.timestamp || Date.now() /
+						1000;
+					const date = new Date(timestamp * 1000);
+
+					const record = {
+						id: item.id || Math.random().toString(36).slice(2),
 						date: this.formatDate(date),
 						time: this.formatTime(date),
-						content: m.sender === 'user' ? m.content : '',
-						reply: m.sender === 'ai' ? m.content : '',
-						id: idx
+						content: item.query || item.content || '未知内容',
+						reply: item.answer || item.reply || '暂无回复',
+						timestamp: timestamp
 					};
+
 					const title = this.getGroupTitle(date);
-					(groupMap[title] ||= []).push(formatted);
+					(groupMap[title] ||= []).push(record);
 				});
 
-				// 转换为数组形式
-				this.historyRecords = Object.entries(groupMap).map(([t, arr]) => ({
-					title: t,
-					list: arr
+				// 5. 排序并更新数据
+				this.historyRecords = Object.entries(groupMap).map(([title, arr]) => ({
+					title,
+					list: arr.sort((a, b) => b.timestamp - a.timestamp)
 				}));
+
 				this.filteredRecords = [...this.historyRecords];
-			},
-
-			/* ========== 2. 加载接口或本地缓存 ========== */
-			async loadHistoryRecords() {
-				try {
-					// 1. 先读本地缓存，立即显示（避免空白）
-					const local = uni.getStorageSync('chatHistory') || [];
-					if (local.length) this.renderLocal(local);
-
-					// 2. 再调接口，成功后覆盖本地
-					const res = await getHistory({
-						conversationId: '5665af64-22b4-4a59-b15f-2126eb056302',
-						user: '2023429112',
-						limit: 50
-					});
-					console.log('原始返回结构', res);
-
-					const list = res?.data?.data || [];
-					if (!list.length) return; // 接口返回空数组也保留本地
-
-					// 处理API返回的数据
-					const groupMap = {};
-					list.forEach(item => {
-						const ts = item.created_at ?? item.create_time ?? item.timestamp ?? 0;
-						const date = String(ts).length === 13 ? new Date(ts) : new Date(ts * 1000);
-
-						const formatted = {
-							date: this.formatDate(date),
-							time: this.formatTime(date),
-							content: item.query || item.question || item.content || '未知内容',
-							reply: item.answer || item.reply || '暂无回复',
-							id: item.id || Math.random().toString(36).slice(2)
-						};
-
-						const title = this.getGroupTitle(date);
-						(groupMap[title] ||= []).push(formatted);
-					});
-
-					// 按时间排序并更新数据
-					this.historyRecords = Object.entries(groupMap).map(([title, arr]) => ({
-						title,
-						list: arr.sort((a, b) => b.timestamp - a.timestamp)
-					}));
-					this.filteredRecords = [...this.historyRecords];
-				} catch (e) {
-					console.error('历史接口 401，已使用本地缓存兜底', e);
-					// 接口失败时，保留本地缓存（不覆盖）
-				}
-			},
-
-			// 处理搜索输入
-			handleSearch() {
-				const kw = this.searchKeyword.trim().toLowerCase();
-				if (!kw) return (this.filteredRecords = [...this.historyRecords]);
-
-				// 过滤历史记录
-				this.filteredRecords = this.historyRecords
-					.map(g => ({
-						...g,
-						list: g.list.filter(i =>
-							i.content.toLowerCase().includes(kw) ||
-							i.reply.toLowerCase().includes(kw)
-						)
-					}))
-					.filter(g => g.list.length);
-			},
-
-			// 清除搜索
-			clearSearch() {
-				this.searchKeyword = '';
-				this.filteredRecords = [...this.historyRecords];
-			},
-
-			// 高亮搜索关键词
-			highlightKeyword(text) {
-				if (!this.searchKeyword || !text) return text;
-				const kw = this.searchKeyword.trim();
-				return text.replace(
-					new RegExp(kw, 'gi'),
-					`<span class="highlight">${kw}</span>`
-				);
-			},
-
-			// 获取分组标题（今天/昨天/7天内等）
-			getGroupTitle(date) {
-				const now = new Date();
-				const today = new Date(now.setHours(0, 0, 0, 0));
-				const yesterday = new Date(today).setDate(today.getDate() - 1);
-				const week = new Date(today).setDate(today.getDate() - 7);
-				const month = new Date(today).setDate(today.getDate() - 30);
-
-				if (date >= today) return '今天';
-				if (date >= yesterday) return '昨天';
-				if (date >= week) return '7天内';
-				if (date >= month) return '30天内';
-				return '更早';
-			},
-
-			// 格式化日期为YYYY-MM-DD
-			formatDate(date) {
-				return `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date
-        .getDate()
-        .toString()
-        .padStart(2, '0')}`;
-			},
-
-			// 格式化时间为HH:MM
-			formatTime(date) {
-				return `${date.getHours().toString().padStart(2, '0')}:${date
-        .getMinutes()
-        .toString()
-        .padStart(2, '0')}`;
-			},
-
-			// 点击历史记录项
-			onItemClick(item) {
-				// 移除HTML标签后触发事件
-				this.$emit('item-click', {
-					...item,
-					content: item.content.replace(/<[^>]+>/g, ''),
-					reply: item.reply.replace(/<[^>]+>/g, '')
+				console.log('最终处理的历史记录:', this.historyRecords);
+			} catch (e) {
+				console.error('加载失败:', e);
+				uni.showToast({
+					title: `加载失败: ${e.message}`,
+					icon: 'none',
+					duration: 3000
 				});
-				this.closeDrawer();
+				this.historyRecords = [];
+			} finally {
+				this.loading = false;
 			}
+		},
+
+
+		// 处理搜索输入
+		handleSearch() {
+			const kw = this.searchKeyword.trim().toLowerCase();
+			if (!kw) return (this.filteredRecords = [...this.historyRecords]);
+
+			// 过滤历史记录
+			this.filteredRecords = this.historyRecords
+				.map(g => ({
+					...g,
+					list: g.list.filter(i =>
+						i.content.toLowerCase().includes(kw) ||
+						i.reply.toLowerCase().includes(kw)
+					)
+				}))
+				.filter(g => g.list.length);
+		},
+
+		// 清除搜索
+		clearSearch() {
+			this.searchKeyword = '';
+			this.filteredRecords = [...this.historyRecords];
+		},
+
+		// 高亮搜索关键词
+		highlightKeyword(text) {
+			if (!this.searchKeyword || !text) return text;
+			const kw = this.searchKeyword.trim();
+			return text.replace(
+				new RegExp(kw, 'gi'),
+				`<span class="highlight">${kw}</span>`
+			);
+		},
+
+		// 获取分组标题（今天/昨天/7天内等）
+		getGroupTitle(date) {
+			const now = new Date();
+			const today = new Date(now.setHours(0, 0, 0, 0));
+			const yesterday = new Date(today).setDate(today.getDate() - 1);
+			const week = new Date(today).setDate(today.getDate() - 7);
+			const month = new Date(today).setDate(today.getDate() - 30);
+
+			if (date >= today) return '今天';
+			if (date >= yesterday) return '昨天';
+			if (date >= week) return '7天内';
+			if (date >= month) return '30天内';
+			return '更早';
+		},
+
+		// 格式化日期为YYYY-MM-DD
+		formatDate(date) {
+			return `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date
+				.getDate()
+				.toString()
+				.padStart(2, '0')}`;
+		},
+
+		// 格式化时间为HH:MM
+		formatTime(date) {
+			return `${date.getHours().toString().padStart(2, '0')}:${date
+				.getMinutes()
+				.toString()
+				.padStart(2, '0')}`;
+		},
+
+		// 点击历史记录项
+		onItemClick(item) {
+			// 移除HTML标签后触发事件
+			this.$emit('item-click', {
+				...item,
+				content: item.content.replace(/<[^>]+>/g, ''),
+				reply: item.reply.replace(/<[^>]+>/g, '')
+			});
+			this.closeDrawer();
 		}
-	};
+	}
+};
 </script>
 
 <style scoped>
-	/* 抽屉容器样式 */
-	.drawer-container {
-		position: fixed;
-		top: 0;
-		left: 0;
-		right: 0;
-		bottom: 0;
-		z-index: 999;
-	}
+/* 抽屉容器样式 */
+.drawer-container {
+	position: fixed;
+	top: 0;
+	left: 0;
+	right: 0;
+	bottom: 0;
+	z-index: 999;
+}
 
-	/* 遮罩层样式 */
-	.drawer-mask {
-		position: absolute;
-		top: 0;
-		left: 0;
-		width: 100%;
-		height: 100%;
-		background-color: rgba(0, 0, 0, 0.4);
-	}
+/* 遮罩层样式 */
+.drawer-mask {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	background-color: rgba(0, 0, 0, 0.4);
+}
 
-	/* 抽屉内容区域样式 */
-	.drawer-content {
-		position: absolute;
-		top: 0;
-		left: 0;
-		width: 66.67%;
-		height: 100vh;
-		background-color: #fff;
-		box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
-		display: flex;
-		flex-direction: column;
-	}
+/* 抽屉内容区域样式 */
+.drawer-content {
+	position: absolute;
+	top: 0;
+	left: 0;
+	width: 66.67%;
+	height: 100vh;
+	background-color: #fff;
+	box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
+	display: flex;
+	flex-direction: column;
+}
 
-	/* 头部样式 */
-	.drawer-header {
-		padding: 15px 15px 10px;
-		display: flex;
-		justify-content: space-between;
-		align-items: center;
-		border-bottom: 1px solid #eee;
-		height: 50px;
-		box-sizing: border-box;
-	}
+/* 头部样式 */
+.drawer-header {
+	padding: 15px 15px 10px;
+	display: flex;
+	justify-content: space-between;
+	align-items: center;
+	border-bottom: 1px solid #eee;
+	height: 50px;
+	box-sizing: border-box;
+}
 
-	.title {
-		font-size: 18px;
-		font-weight: 600;
-		color: #333;
-	}
+.title {
+	font-size: 18px;
+	font-weight: 600;
+	color: #333;
+}
 
-	.close-icon {
-		width: 24px;
-		height: 24px;
-	}
+.close-icon {
+	width: 24px;
+	height: 24px;
+}
 
-	/* 搜索栏样式 */
-	.search-bar {
-		display: flex;
-		align-items: center;
-		padding: 10px 15px;
-		background-color: #f5f5f5;
-		border-bottom: 1px solid #eee;
-	}
+/* 搜索栏样式 */
+.search-bar {
+	display: flex;
+	align-items: center;
+	padding: 10px 15px;
+	background-color: #f5f5f5;
+	border-bottom: 1px solid #eee;
+}
 
-	.search-icon {
-		width: 18px;
-		height: 18px;
-		margin-right: 8px;
-		tint-color: #999;
-	}
+.search-icon {
+	width: 18px;
+	height: 18px;
+	margin-right: 8px;
+	tint-color: #999;
+}
 
-	.search-input {
-		flex: 1;
-		height: 36px;
-		background-color: #fff;
-		border-radius: 18px;
-		padding: 0 15px;
-		font-size: 14px;
-	}
+.search-input {
+	flex: 1;
+	height: 36px;
+	background-color: #fff;
+	border-radius: 18px;
+	padding: 0 15px;
+	font-size: 14px;
+}
 
-	.clear-icon {
-		width: 16px;
-		height: 16px;
-		margin-left: 8px;
-		tint-color: #999;
-	}
+.clear-icon {
+	width: 16px;
+	height: 16px;
+	margin-left: 8px;
+	tint-color: #999;
+}
 
-	/* 历史列表样式 */
-	.history-list {
-		flex: 1;
-		overflow-y: auto;
-		padding: 10px 0;
-		box-sizing: border-box;
-	}
+/* 历史列表样式 */
+.history-list {
+	flex: 1;
+	overflow-y: auto;
+	padding: 10px 0;
+	box-sizing: border-box;
+}
 
-	/* 分组标题样式 */
-	.group-title {
-		font-size: 14px;
-		color: #888;
-		padding: 12px 20px;
-		background-color: #f5f5f5;
-	}
+/* 分组标题样式 */
+.group-title {
+	font-size: 14px;
+	color: #888;
+	padding: 12px 20px;
+	background-color: #f5f5f5;
+}
 
-	/* 历史记录项样式 */
-	.history-item {
-		padding: 15px 20px;
-		background-color: #fff;
-		border-bottom: 1px solid #f0f0f0;
-	}
+/* 历史记录项样式 */
+.history-item {
+	padding: 15px 20px;
+	background-color: #fff;
+	border-bottom: 1px solid #f0f0f0;
+}
 
-	/* 日期时间样式 */
-	.datetime {
-		display: flex;
-		justify-content: space-between;
-		margin-bottom: 8px;
-	}
+/* 日期时间样式 */
+.datetime {
+	display: flex;
+	justify-content: space-between;
+	margin-bottom: 8px;
+}
 
-	.date {
-		font-size: 13px;
-		color: #666;
-	}
+.date {
+	font-size: 13px;
+	color: #666;
+}
 
-	.time {
-		font-size: 12px;
-		color: #999;
-	}
+.time {
+	font-size: 12px;
+	color: #999;
+}
 
-	/* 消息内容样式 */
-	.record {
-		font-size: 14px;
-		line-height: 1.6;
-	}
+/* 消息内容样式 */
+.record {
+	font-size: 14px;
+	line-height: 1.6;
+}
 
-	.user-msg {
-		display: block;
-		color: #333;
-		margin-bottom: 6px;
-		padding: 6px 10px;
-		background-color: #f9f9f9;
-		border-radius: 6px;
-	}
+.user-msg {
+	display: block;
+	color: #333;
+	margin-bottom: 6px;
+	padding: 6px 10px;
+	background-color: #f9f9f9;
+	border-radius: 6px;
+}
 
-	.ai-msg {
-		display: block;
-		color: #333;
-		padding: 6px 10px;
-		background-color: #eef7ff;
-		border-radius: 6px;
-	}
+.ai-msg {
+	display: block;
+	color: #333;
+	padding: 6px 10px;
+	background-color: #eef7ff;
+	border-radius: 6px;
+}
 
-	/* 关键词高亮样式 */
-	.highlight {
-		color: #ff4d4f;
-		font-weight: bold;
-	}
+/* 关键词高亮样式 */
+.highlight {
+	color: #ff4d4f;
+	font-weight: bold;
+}
 
-	/* 分隔线样式 */
-	.divider {
-		height: 8px;
-		background-color: #f9f9f9;
-		margin-top: 10px;
-		border-radius: 4px;
-	}
+/* 分隔线样式 */
+.divider {
+	height: 8px;
+	background-color: #f9f9f9;
+	margin-top: 10px;
+	border-radius: 4px;
+}
 
-	/* 空状态提示样式 */
-	.empty-tip {
-		text-align: center;
-		color: #999;
-		font-size: 16px;
-		margin-top: 50px;
-	}
+/* 空状态提示样式 */
+.empty-tip {
+	text-align: center;
+	color: #999;
+	font-size: 16px;
+	margin-top: 50px;
+}
 
-	/* 修复输入框占位符样式 */
-	input::-webkit-input-placeholder {
-		color: #ccc;
-		font-size: 14px;
-	}
+/* 修复输入框占位符样式 */
+input::-webkit-input-placeholder {
+	color: #ccc;
+	font-size: 14px;
+}
 </style>
\ No newline at end of file
diff --git a/pages/aiChat/ai_index.vue b/pages/aiChat/ai_index.vue
index eb85b4b..51c19b0 100644
--- a/pages/aiChat/ai_index.vue
+++ b/pages/aiChat/ai_index.vue
@@ -1,8 +1,5 @@
-<!-- pages/aiChat/ai_index -->
 <template>
 	<view class="chat-container">
-		<!-- 状态保持：当AI聊天可见时才显示聊天内容 -->
-
 		<!-- 状态栏占位 -->
 		<view class="status-bar-placeholder"></view>
 
@@ -14,16 +11,23 @@
 			</view>
 			<!-- 中间标题 -->
 			<view class="nav-title">智水AI辅导员</view>
-
-			<!-- 右侧：新建聊天图标 -->
-			<view class="nav-right" @click="newChat">
-				<image src="/static/newChat.svg" mode="aspectFit" class="nav-icon"></image>
-			</view>
 		</view>
 
 		<!-- 消息列表 -->
-		<scroll-view scroll-y class="message-list" :scroll-top="scrollTop" scroll-with-animation>
-			<block v-for="(item, index) in messages" :key="index">
+		<scroll-view scroll-y class="message-list" :scroll-top="scrollTop" scroll-with-animation enable-passive="true"
+			@scroll="onScroll" @scrolltoupper="loadMoreHistory" upper-threshold="50">
+			<!-- 加载提示 -->
+			<view v-if="isLoadingHistory" class="loading-history">
+				<text>正在加载历史记录...</text>
+			</view>
+
+			<!-- 没有更多历史记录提示 -->
+			<view v-if="!hasMoreHistory && messages.length > 0" class="no-more-history">
+				<text>没有更多历史记录了</text>
+			</view>
+
+			<!-- 消息列表 -->
+			<block v-for="(item, index) in messages" :key="item.messageId || index">
 				<view :class="['message-item', item.sender === 'user' ? 'user-message' : 'ai-message']">
 					<!-- 用户/AI头像 -->
 					<image class="avatar" :src="item.avatar"></image>
@@ -34,30 +38,30 @@
 						<text v-else-if="item.content">{{ item.content }}</text>
 						<!-- 图片内容 -->
 						<image v-if="item.image" :src="item.image" class="sent-image"></image>
+
 						<!-- AI 特有内容 -->
 						<view v-if="item.sender === 'ai'" class="ai-hint">
 							<!-- 引用来源部分 -->
 							<view v-if="item.retrieverResources && item.retrieverResources.length"
 								class="reference-section">
-								<view class="reference-section">
-									<text class="reference-title">引用来源：</text>
-									<!-- 遍历每个引用资源 -->
-									<view v-for="(ref, idx) in item.retrieverResources" :key="idx"
-										class="reference-item-wrapper">
-										<!-- 可点击的文档名 -->
-										<text class="doc-name-link" @click="toggleSingleReference(index, idx)">
-											{{ ref.document_name }}
-										</text>
+								<text class="reference-title">引用来源：</text>
+								<!-- 遍历每个引用资源 -->
+								<view v-for="(ref, idx) in item.retrieverResources" :key="idx"
+									class="reference-item-wrapper">
+									<!-- 可点击的文档名 -->
+									<text class="doc-name-link" @click="toggleSingleReference(index, idx)">
+										{{ ref.document_name }}
+									</text>
 
-										<!-- 展开的详情（仅当前项） -->
-										<view v-if="showSingleReference[index] && showSingleReference[index][idx]"
-											class="reference-details-item">
-											<text class="reference-meta">{{ ref.name }}（{{ ref.document_name }}）</text>
-											<text class="reference-content" v-if="ref.content">{{ ref.content }}</text>
-										</view>
+									<!-- 展开的详情（仅当前项） -->
+									<view v-if="showSingleReference[index] && showSingleReference[index][idx]"
+										class="reference-details-item">
+										<text class="reference-meta">{{ ref.name }}（{{ ref.document_name }}）</text>
+										<text class="reference-content" v-if="ref.content">{{ ref.content }}</text>
 									</view>
 								</view>
 							</view>
+
 							<!-- AI操作区域（点赞/点踩） -->
 							<view class="ai-actions">
 								<text class="ai-text">回答由AI生成</text>
@@ -97,361 +101,775 @@
 </template>
 
 <script>
-	/* ========== 依赖 ========== */
-	import HistoryDrawer from '@/components/aiChat/HistoryDrawer.vue'; // 历史记录抽屉组件
-	import {
-		createChatStream
-	} from '@/utils/ai_stream.js'; // 流式聊天API
-	import MarkdownIt from 'markdown-it'; // Markdown解析器
-	import DOMPurify from 'dompurify'; // HTML净化器
+/* ========== 依赖 ========== */
+import HistoryDrawer from '@/components/aiChat/HistoryDrawer.vue';
+import {
+	createChatStream
+} from '@/utils/ai_stream.js';
+import {
+	sendFeedback,
+	getHistory
+} from '@/api/aiChat/ai_index.js';
+import MarkdownIt from 'markdown-it';
+import DOMPurify from 'dompurify';
 
-	/* DOMPurify 白名单加固 */
-	DOMPurify.addHook('afterSanitizeAttributes', node => {
-		if (node.tagName === 'A') node.setAttribute('rel', 'noopener noreferrer');
-	});
+/* DOMPurify 白名单加固 */
+DOMPurify.addHook('afterSanitizeAttributes', node => {
+	if (node.tagName === 'A') node.setAttribute('rel', 'noopener noreferrer');
+});
 
-	// 初始化Markdown解析器
-	const md = new MarkdownIt({
-		html: true,
-		linkify: true,
-		typographer: true
-	});
+const md = new MarkdownIt({
+	html: true,
+	linkify: true,
+	typographer: true
+});
 
-	/* ========== 配置 ========== */
-	const BASE_URL = (function() {
-		// #ifdef H5
-		return 'http://localhost:8080/dev-api/aitutor/aichat'; // H5环境API地址
-		// #endif
-		// #ifndef H5
-		// return 'http://192.168.31.123:8080/aitutor/aichat'; // 真机调试改成你的电脑 IP
-		// #endif
-	})();
+export default {
+	components: {
+		HistoryDrawer
+	},
+	data() {
+		return {
+			showHistoryDrawer: false,
+			inputMessage: '',
+			messages: [],
+			scrollTop: 0,
+			conversation_id: null,
+			showSingleReference: {},
+			currentCancel: null,
+			sending: false,
+			user: uni.getStorageSync('stuNo') || '',
+			userId: uni.getStorageSync('stuId') || '',
+			userName: uni.getStorageSync('stuName') || '',
+			// 分页加载相关字段
+			isLoadingHistory: false,
+			hasMoreHistory: true,
+			earliestMessageId: null,
+			scrollHeight: 0,
+			lastScrollTime: 0,
+			scrollDebounce: 100,
+			lastUserScrollTime: 0, // 添加这个字段用于智能滚动
+		};
+	},
 
-	/* ========== 组件 ========== */
-	export default {
-		components: {
-			HistoryDrawer
+	/* ---------- 生命周期 ---------- */
+	onLoad() {
+		if (!this.user) {
+			this.$toast('请先登录');
+			setTimeout(() => uni.navigateTo({
+				url: '/pages/login/index'
+			}), 1500);
+			return;
+		}
+
+		// 从本地存储获取conversation_id
+		this.conversation_id = uni.getStorageSync('conversation_id') || null;
+
+		// 初始化聊天并确保滚动到底部
+		this.initChat().then(() => {
+			// 多重延迟确保DOM完全渲染
+			this.$nextTick(() => {
+				setTimeout(() => {
+					this.forceScrollToBottom();
+					// 再次确保滚动（处理某些设备的渲染延迟）
+					setTimeout(() => {
+						this.forceScrollToBottom();
+					}, 500);
+				}, 300);
+			});
+		});
+	},
+
+	/**
+	 * 页面显示时触发 - 确保每次进入页面都滚动到底部
+	 */
+	onShow() {
+		// 确保页面显示时滚动到底部
+		this.$nextTick(() => {
+			setTimeout(() => {
+				this.forceScrollToBottom();
+				// 额外延迟处理某些设备的渲染问题
+				setTimeout(() => {
+					this.forceScrollToBottom();
+				}, 200);
+			}, 100);
+		});
+	},
+
+	/* ---------- 方法 ---------- */
+	methods: {
+		/**
+		 * 返回首页
+		 */
+		goHome() {
+			uni.reLaunch({
+				url: '/pages/index/index'
+			});
 		},
-		data() {
-			return {
-				showHistoryDrawer: false, // 是否显示历史记录抽屉
-				inputMessage: '', // 用户输入的消息
-				messages: [], // 聊天消息列表
-				scrollTop: 0, // 滚动位置
-				conversation_id: null, // 当前会话ID
-				showSingleReference: {}, // 控制引用来源的显示状态
-				currentReader: null, // 当前流式读取器
-				/* 新增锁 & 基础信息 */
-				sending: false, // 是否正在发送消息
-				user: uni.getStorageSync('stuNo') || '', // 用户学号
-				userId: uni.getStorageSync('stuId') || '', // 用户ID
-				userName: uni.getStorageSync('stuName') || '' // 用户名
+
+		/**
+		 * 强制滚动到底部 - 优化版本
+		 */
+		forceScrollToBottom() {
+			this.$nextTick(() => {
+				const query = uni.createSelectorQuery().in(this);
+				query.select('.message-list').boundingClientRect(rect => {
+					if (rect && rect.scrollHeight > rect.height) {
+						// 计算需要滚动的距离
+						const targetScrollTop = rect.scrollHeight - rect.height + 50; // 额外50px确保完全显示
+						this.scrollTop = targetScrollTop;
+
+						// 双重确保滚动生效
+						setTimeout(() => {
+							this.scrollTop = targetScrollTop + 1;
+							setTimeout(() => {
+								this.scrollTop = targetScrollTop;
+							}, 50);
+						}, 100);
+					}
+				}).exec();
+			});
+		},
+
+		forceScrollToTop() {
+			this.$nextTick(() => {
+				// 直接滚动到顶部
+				this.scrollTop = 999;
+
+				// 双重确保滚动生效
+				setTimeout(() => {
+					this.scrollTop = 1;
+					setTimeout(() => {
+						this.scrollTop = 0;
+					}, 50);
+				}, 100);
+			});
+		},
+
+		/**
+		 * 切换历史记录抽屉显示状态
+		 */
+		toggleHistoryDrawer() {
+			this.showHistoryDrawer = !this.showHistoryDrawer;
+		},
+
+		/**
+		 * 渲染Markdown内容
+		 * @param {string} text - 需要渲染的Markdown文本
+		 * @returns {string} 安全的HTML内容
+		 */
+		renderMarkdown(text) {
+			return DOMPurify.sanitize(md.render(text || ''));
+		},
+
+		/**
+		 * 显示提示消息
+		 * @param {string} title - 提示内容
+		 * @param {string} icon - 图标类型
+		 */
+		$toast(title, icon = 'none') {
+			uni.showToast({
+				title,
+				icon
+			});
+		},
+
+		/**
+		 * 历史记录点击处理
+		 * @param {Object} item - 历史记录项
+		 */
+		onHistoryItemClick(item) {
+			// 清理当前消息和分页状态
+			this.messages = [];
+			this.isLoadingHistory = false;
+			this.hasMoreHistory = true;
+			this.earliestMessageId = null;
+
+			// 添加历史对话到消息列表
+			const userMessage = {
+				sender: 'user',
+				avatar: '/static/yonghu.png',
+				content: item.content,
+				image: '',
+				messageId: 'history-user-' + Date.now().toString()
 			};
+
+			const aiMessage = {
+				sender: 'ai',
+				avatar: '/static/AI.png',
+				content: item.reply,
+				retrieverResources: [],
+				image: '',
+				messageId: 'history-ai-' + Date.now().toString()
+			};
+
+			this.messages = [userMessage, aiMessage];
+			this.earliestMessageId = userMessage.messageId;
+
+			// 设置对话ID（如果有的话）
+			if (item.conversationId) {
+				this.conversation_id = item.conversationId;
+				uni.setStorageSync('conversation_id', this.conversation_id);
+			}
+
+			// 确保滚动到底部
+			this.$nextTick(() => {
+				setTimeout(() => {
+					this.scrollToBottom();
+				}, 300);
+			});
+
+			this.saveMessagesToLocal(); // 保存到本地
+			this.$toast('已加载历史对话', 'success');
 		},
 
-		/* ---------- 生命周期 ---------- */
-		onLoad() {
-			// 页面加载时检查登录状态
-			if (!this.user) {
-				this.$toast('请先登录');
-				setTimeout(() => uni.navigateTo({
-					url: '/pages/login/index'
-				}), 1500);
+		/**
+		 * 初始化聊天 - 从接口获取历史记录
+		 */
+		async initChat() {
+			if (!this.user) return this.initConversation();
+
+			// 重置状态
+			this.isLoadingHistory = false;
+			this.hasMoreHistory = true;
+			this.earliestMessageId = null;
+			this.messages = [];
+
+			try {
+				const res = await getHistory({
+					user: this.user,
+					conversationId: this.conversation_id || '',
+					limit: 20
+				});
+
+				console.log('API响应数据:', res); // 调试日志
+
+				if (res.code === 200 && res.data && Array.isArray(res.data.data)) {
+					// 新消息数组
+					const newMessages = [];
+
+					// 处理每条消息
+					res.data.data.forEach(msg => {
+						console.log('处理单条消息:', msg); // 调试日志
+
+						// 用户消息
+						if (msg.query) {
+							newMessages.push({
+								sender: 'user',
+								avatar: '/static/yonghu.png',
+								content: msg.query,
+								image: '',
+								messageId: msg.id,
+								conversationId: msg.conversation_id
+							});
+						}
+
+						// AI消息
+						if (msg.answer) {
+							newMessages.push({
+								sender: 'ai',
+								avatar: '/static/AI.png',
+								content: msg.answer,
+								retrieverResources: msg.retriever_resources || [],
+								image: '',
+								messageId: 'ai-' + msg.id,
+								conversationId: msg.conversation_id
+							});
+						}
+					});
+
+					// 按创建时间排序
+					newMessages.sort((a, b) => {
+						return new Date(a.created_at) - new Date(b.created_at);
+					});
+
+					this.messages = newMessages;
+
+					if (newMessages.length > 0) {
+						this.conversation_id = newMessages[0].conversationId;
+						uni.setStorageSync('conversation_id', this.conversation_id);
+						this.earliestMessageId = newMessages[0].messageId;
+					}
+
+					this.hasMoreHistory = res.data.has_more || false;
+					this.scrollToBottom();
+				} else {
+					this.messages = this.getWelcomeMessage();
+					this.hasMoreHistory = false;
+				}
+			} catch (e) {
+				console.error('初始化聊天失败:', e);
+				this.$toast('加载历史记录失败');
+				this.initConversation();
+			}
+
+			// 确保初始化完成后滚动到底部
+			this.$nextTick(() => {
+				setTimeout(() => {
+					this.forceScrollToBottom();
+				}, 200);
+			});
+		},
+
+		/**
+		 * 加载更多历史记录 - 基于ID分页
+		 */
+		async loadMoreHistory() {
+			if (this.isLoadingHistory || !this.hasMoreHistory || !this.conversation_id || !this
+				.earliestMessageId) {
 				return;
 			}
-			this.initChat(); // 初始化聊天
-		},
-		onUnload() {
-			// 页面卸载时取消流式读取
-			this.currentReader?.cancel?.('页面卸载');
-			this.currentReader = null;
-		},
-		async onPullDownRefresh() {
-			// 下拉刷新
-			await this.initChat();
-			uni.stopPullDownRefresh();
-			this.$toast('刷新成功', 'success');
-		},
 
-		/* ---------- 方法 ---------- */
-		methods: {
-			// 返回首页
-			goHome() {
-				uni.reLaunch({
-					url: '/pages/index/index'
+			this.isLoadingHistory = true;
+
+			try {
+				// 记录当前滚动位置和高度
+				const currentScrollTop = this.scrollTop;
+				const query = uni.createSelectorQuery().in(this);
+				const currentScrollHeight = await new Promise(resolve => {
+					query.select('.message-list').boundingClientRect(rect => {
+						resolve(rect.height);
+					}).exec();
 				});
-			},
 
-			// 切换历史记录抽屉显示状态
-			toggleHistoryDrawer() {
-				this.showHistoryDrawer = !this.showHistoryDrawer;
-			},
+				// 使用当前最早的消息ID作为分页参数
+				const beforeId = this.earliestMessageId;
 
-			// 渲染Markdown内容
-			renderMarkdown(text) {
-				return DOMPurify.sanitize(md.render(text || ''));
-			},
-
-			/* 轻量 toast 封装 */
-			$toast(title, icon = 'none') {
-				uni.showToast({
-					title,
-					icon
+				const res = await getHistory({
+					user: this.user,
+					conversationId: this.conversation_id,
+					limit: 10,
+					beforeId: beforeId // 获取指定ID之前的记录
 				});
-			},
 
-			/* 获取历史会话 or 欢迎语 */
-			async initChat() {
-				if (!this.user) return this.initConversation();
-				try {
-					// 请求获取用户历史消息
-					const res = await uni.request({
-						url: BASE_URL + '/getMessagesToUser',
-						method: 'POST',
-						data: {
-							user: this.user
+
+
+				// 修正数据结构解析：使用res.data.data而不是res.data
+				if (res.code === 200 && res.data && Array.isArray(res.data.data) && res.data.data.length > 0) {
+
+					// 处理新获取的消息
+					// 在数据解析后添加调试日志
+					const newMessages = res.data.data.map(msg => {
+						// 根据控制台数据结构分析，修正字段映射
+						let sender, content;
+
+						if (msg.inputs?.user_name) {
+							// 用户消息
+							sender = 'user';
+							content = msg.query || msg.content || '';
+						} else {
+							// AI消息 - 根据实际数据结构调整字段映射
+							sender = 'ai';
+							content = msg.answer || msg.content || msg.reply || '';
 						}
+
+						const message = {
+							sender: sender,
+							avatar: sender === 'user' ? '/static/yonghu.png' : '/static/AI.png',
+							content: content,
+							retrieverResources: msg.retriever_resources || [],
+							image: '',
+							messageId: msg.id,
+							conversationId: msg.conversation_id
+						};
+
+						return message;
 					});
-					const data = res.data || {};
-					if (data.code === 200 && data.data?.conversationId) {
-						// 设置会话ID和消息列表
-						this.conversation_id = data.data.conversationId;
-						uni.setStorageSync('conversation_id', this.conversation_id);
-						this.messages = Array.isArray(data.data.messages) && data.data.messages.length ?
-							data.data.messages :
-							this.welcomeMessage();
-					} else {
-						this.initConversation();
-					}
-				} catch (e) {
-					console.error('获取历史失败', e);
-					this.$toast('连接失败，使用新会话');
-					this.initConversation();
+
+					// 按ID排序
+					newMessages.sort((a, b) => {
+						const aId = parseInt(a.messageId) || 0;
+						const bId = parseInt(b.messageId) || 0;
+						return aId - bId;
+					});
+
+					// 插入到现有消息的前面
+					this.insertMessagesAtFront(newMessages);
+
+					// 使用has_more字段判断是否还有更多数据
+					this.hasMoreHistory = res.data.has_more || false;
+
+					// 保持滚动位置，避免跳变
+					this.$nextTick(() => {
+						query.select('.message-list').boundingClientRect(rect => {
+							if (rect) {
+								const heightDiff = rect.height - currentScrollHeight;
+								this.scrollTop = currentScrollTop + heightDiff;
+							}
+						}).exec();
+					});
+				} else {
+					this.hasMoreHistory = false;
 				}
-			},
+			} catch (error) {
+				console.error('加载历史记录失败:', error);
+				this.$toast('加载历史记录失败');
+			} finally {
+				this.isLoadingHistory = false;
+			}
 
-			/* 欢迎语兜底 */
-			welcomeMessage() {
-				return [{
-					sender: 'ai',
-					avatar: '/static/AI.png',
-					content: '你好！我是您的 AI 小助手，有什么可以帮您？😊',
-					retrieverResources: [],
-					image: ''
-				}];
-			},
+			return Promise.resolve();
+		},
 
-			// 初始化新会话
-			initConversation() {
-				uni.removeStorageSync('chatHistory');
-				this.conversation_id = null;
-				this.messages = this.welcomeMessage();
-			},
+		/**
+		 * 按ID顺序插入新消息到前面
+		 * @param {Array} newMessages - 新消息数组
+		 */
+		insertMessagesAtFront(newMessages) {
+			if (!newMessages || newMessages.length === 0) return;
 
-			/* 发送消息（带并发锁） */
-			async sendMessage() {
-				const msg = this.inputMessage.trim();
-				if (!msg || this.sending) return;
-				this.sending = true;
+			// 确保新消息有正确的messageId
+			const processedMessages = newMessages.map(msg => ({
+				...msg,
+				messageId: msg.messageId || msg.id || 'history-' + Date.now() + '-' + Math.random()
+			}));
 
-				// 添加用户消息到列表
-				this.messages.push({
-					sender: 'user',
-					avatar: '/static/yonghu.png',
-					content: msg,
-					image: '',
-					messageId: Date.now().toString()
+			// 按ID排序，确保正确的时间顺序
+			processedMessages.sort((a, b) => {
+				const aId = parseInt(a.messageId.replace(/\D/g, '')) || 0;
+				const bId = parseInt(b.messageId.replace(/\D/g, '')) || 0;
+				return aId - bId;
+			});
+
+			// 插入到消息列表前面
+			this.messages = [...processedMessages, ...this.messages];
+
+			// 更新最早消息ID
+			if (processedMessages.length > 0) {
+				this.earliestMessageId = processedMessages[0].messageId;
+			}
+
+			// 保存到本地存储
+			this.saveMessagesToLocal();
+		},
+
+		/**
+		 * 初始化新对话
+		 */
+		initConversation() {
+			this.conversation_id = null;
+			this.messages = this.getWelcomeMessage();
+			this.hasMoreHistory = false; // 新对话没有历史记录
+			this.saveMessagesToLocal();
+		},
+
+		/**
+		 * 保存消息到本地存储
+		 */
+		saveMessagesToLocal() {
+			if (!this.user) return;
+
+			const storageKey = `chatMessages_${this.user}_${this.conversation_id || 'default'}`;
+
+			// 限制本地存储的消息数量，避免占用过多空间
+			const maxMessages = 100;
+			const messagesToSave = this.messages.length > maxMessages ?
+				this.messages.slice(0, maxMessages) :
+				this.messages;
+
+			uni.setStorageSync(storageKey, messagesToSave);
+		},
+
+		/**
+		 * 欢迎消息
+		 * @returns {Array} 欢迎消息数组
+		 */
+		getWelcomeMessage() {
+			return [{
+				sender: 'ai',
+				avatar: '/static/AI.png',
+				content: '你好！我是您的 AI 小助手，有什么可以帮您？😊',
+				retrieverResources: [],
+				image: '',
+				messageId: 'welcome-' + Date.now().toString()
+			}];
+		},
+
+		/**
+		 * 基于SSE的发送消息实现
+		 */
+		async sendMessage() {
+			const msg = this.inputMessage.trim();
+			if (!msg || this.sending) return;
+			this.sending = true;
+
+			// 添加用户消息
+			this.messages.push({
+				sender: 'user',
+				avatar: '/static/yonghu.png',
+				content: msg,
+				image: '',
+				messageId: Date.now().toString()
+			});
+			this.inputMessage = '';
+			this.saveMessagesToLocal(); // 保存用户消息
+
+			// 添加AI消息占位
+			const aiIdx = this.messages.push({
+				sender: 'ai',
+				avatar: '/static/AI.png',
+				content: '<span class="loading-text">正在思考...</span>',
+				retrieverResources: [],
+				image: '',
+				messageId: 'pending-' + Date.now().toString()
+			}) - 1;
+			this.$set(this.showSingleReference, aiIdx, {});
+			this.scrollToBottom();
+
+			// 取消之前的请求
+			if (this.currentCancel) {
+				this.currentCancel('新消息发送，终止旧连接');
+			}
+
+			try {
+				const {
+					stream,
+					cancel
+				} = createChatStream({
+					conversationId: this.conversation_id,
+					prompt: msg,
+					user: this.user,
+					userId: this.userId,
+					userName: this.userName
 				});
-				this.inputMessage = '';
 
-				// 添加AI占位消息
-				const aiIdx = this.messages.push({
-					sender: 'ai',
-					avatar: '/static/AI.png',
-					content: '',
-					retrieverResources: [],
-					image: '',
-					messageId: null
-				}) - 1;
-				this.$set(this.showSingleReference, aiIdx, {});
-				this.scrollToBottom();
+				this.currentCancel = cancel;
+				const {
+					reader,
+					decoder
+				} = await stream;
 
-				try {
-					// 创建流式聊天连接
+				let buffer = '';
+				// 流式处理响应
+				while (true) {
 					const {
-						stream
-					} = createChatStream({
-						conversationId: this.conversation_id,
-						prompt: msg,
-						user: this.user,
-						userId: this.userId,
-						userName: this.userName
+						done,
+						value
+					} = await reader.read();
+					if (done) break;
+					buffer += decoder.decode(value, {
+						stream: true
 					});
-					const {
-						reader,
-						decoder
-					} = await stream;
+					const lines = buffer.split('\n');
+					buffer = lines.pop() || '';
 
-					let buffer = '';
-					// 流式读取数据
-					while (true) {
-						const {
-							done,
-							value
-						} = await reader.read();
-						if (done) break;
-						buffer += decoder.decode(value, {
-							stream: true
-						});
-						const lines = buffer.split('\n');
-						buffer = lines.pop() || '';
+					for (const line of lines) {
+						if (!line.trim()) continue;
+						try {
+							let jsonStr = line.replace(/^data:/, '').trim();
+							const data = JSON.parse(jsonStr);
 
-						// 处理每行数据
-						for (const l of lines) {
-							if (!l.startsWith('data:')) continue;
-							const text = l.slice(5).trim();
-							if (text === '[DONE]') continue;
-							try {
-								const json = JSON.parse(text);
-								// 处理消息内容
-								if (json.event === 'message' && json.answer) {
-									this.$set(this.messages[aiIdx], 'content', this.messages[aiIdx].content + json
-										.answer);
-									this.scrollToBottom();
+							// 更新消息内容
+							if (data.event === 'message' && data.answer) {
+								const currentContent = this.messages[aiIdx].content;
+								const newContent = (currentContent.includes('loading-text') ? '' :
+									currentContent) + data.answer;
+								this.$set(this.messages[aiIdx], 'content', newContent);
+
+								// 每次更新内容后立即滚动到底部
+								this.scrollToBottom(true); // 传入true表示是流式响应中的滚动
+								this.saveMessagesToLocal();
+							}
+
+							// 处理结束消息
+							if (data.event === 'message_end') {
+								if (data.conversation_id) {
+									this.conversation_id = data.conversation_id;
+									uni.setStorageSync('conversation_id', this.conversation_id);
 								}
-								// 处理消息结束事件
-								if (json.event === 'message_end') {
-									if (json['conversation id']) this.conversation_id = json['conversation id'];
-									if (json.metadata?.retriever_resources) {
-										this.$set(this.messages[aiIdx], 'retrieverResources', json.metadata
-											.retriever_resources);
-										this.$set(this.messages[aiIdx], 'messageId', json.message_id || Date.now()
-											.toString());
-									}
+								if (data.metadata?.retriever_resources) {
+									this.$set(this.messages[aiIdx], 'retrieverResources', data.metadata
+										.retriever_resources);
+								}
+								if (data.message_id) {
+									this.$set(this.messages[aiIdx], 'messageId', data.message_id);
+								}
+
+								// 最终完成后再次确保滚动到底部
+								this.forceScrollToTop();
+							}
+						} catch (e) {
+							console.warn('JSON解析失败:', line, e);
+						}
+					}
+				}
+			} catch (e) {
+				console.error('流式请求失败:', e);
+				this.$set(this.messages[aiIdx], 'content', 'AI回复失败: ' + (e.message || '网络错误'));
+			} finally {
+				this.sending = false;
+				this.currentCancel = null;
+
+				// 确保AI消息有有效的messageId
+				if (this.messages[aiIdx].messageId.startsWith('pending-')) {
+					this.$set(this.messages[aiIdx], 'messageId', 'ai-' + Date.now().toString());
+				}
+
+				// 保存消息到本地存储
+				this.saveMessagesToLocal();
+			}
+		},
+
+		/**
+		 * 滚动到底部
+		 * @param {boolean} isStreaming - 是否是流式响应中的滚动
+		 */
+		// 修改原有scrollToBottom方法
+		scrollToBottom(isStreaming = false) {
+			const now = Date.now();
+			if (now - this.lastScrollTime < this.scrollDebounce && isStreaming) {
+				return;
+			}
+			this.lastScrollTime = now;
+
+			this.$nextTick(() => {
+				setTimeout(() => {
+					const query = uni.createSelectorQuery().in(this);
+					query.select('.message-list').boundingClientRect(rect => {
+						if (rect) {
+							// 确保滚动到最底部
+							this.scrollTop = rect.scrollHeight;
+						}
+					}).exec();
+				}, isStreaming ? 50 : 100);
+			});
+		},
+
+		/**
+		 * 切换单个引用的显示状态
+		 * @param {number} msgIdx - 消息索引
+		 * @param {number} refIdx - 引用索引
+		 */
+		toggleSingleReference(msgIdx, refIdx) {
+			if (!this.showSingleReference[msgIdx]) this.$set(this.showSingleReference, msgIdx, {});
+			const cur = this.showSingleReference[msgIdx][refIdx];
+			this.$set(this.showSingleReference[msgIdx], refIdx, !cur);
+		},
+
+		/**
+		 * 点赞处理
+		 * @param {string} id - 消息ID
+		 */
+		handleThumbUpClick(id) {
+			if (!id) {
+				this.$toast('消息ID不存在', 'error');
+				return;
+			}
+
+			sendFeedback({
+				messageId: id,
+				action: 1,
+				user: this.user
+			}).then(res => {
+				if (res.code === 200) {
+					this.$toast('点赞成功', 'success');
+				} else {
+					this.$toast(res.msg || '点赞失败', 'error');
+				}
+			}).catch(err => {
+				console.error('点赞失败:', err);
+				this.$toast('点赞失败', 'error');
+			});
+		},
+
+		/**
+		 * 点踩处理
+		 * @param {string} id - 消息ID
+		 */
+		handleThumbDownClick(id) {
+			if (!id) {
+				this.$toast('消息ID不存在', 'error');
+				return;
+			}
+
+			sendFeedback({
+				messageId: id,
+				action: 0,
+				user: this.user
+			}).then(res => {
+				if (res.code === 200) {
+					this.$toast('已反馈', 'success');
+				} else {
+					this.$toast(res.msg || '反馈失败', 'error');
+				}
+			}).catch(err => {
+				console.error('反馈失败:', err);
+				this.$toast('反馈失败', 'error');
+			});
+		},
+
+		/**
+		 * 滚动事件监听
+		 * @param {Object} e - 事件对象
+		 */
+		onScroll(e) {
+			this.scrollHeight = e.detail.scrollHeight;
+			this.lastUserScrollTime = Date.now();
+		},
+
+		/**
+		 * 智能滚动到顶部
+		 * 如果用户在3秒内没有滚动，则自动滚动到顶部
+		 */
+		smartScrollToTop() {
+			// 如果用户在3秒内没有滚动，则自动滚动到顶部
+			if (Date.now() - this.lastUserScrollTime > 3000) {
+				this.forceScrollToTop();
+			}
+		},
+
+		/**
+		 * 选择图片并上传
+		 */
+		selectImage() {
+			uni.chooseImage({
+				count: 1,
+				sizeType: ['compressed'],
+				sourceType: ['album', 'camera'],
+				success: res => {
+					const temp = res.tempFilePaths[0];
+					uni.uploadFile({
+						url: '/aitutor/aichat/files/upload',
+						filePath: temp,
+						name: 'file',
+						formData: {
+							user: this.user,
+							userId: this.userId,
+							userName: this.userName
+						},
+						success: ({
+							data
+						}) => {
+							try {
+								const {
+									url
+								} = JSON.parse(data);
+								if (url) {
+									this.messages.push({
+										sender: 'user',
+										avatar: '/static/yonghu.png',
+										content: '',
+										image: url,
+										messageId: Date.now().toString()
+									});
+									this.scrollToBottom();
+									this.saveMessagesToLocal(); // 保存图片消息
 								}
 							} catch (e) {
-								console.warn('JSON 解析失败', text, e);
+								this.$toast('上传解析失败');
 							}
-						}
-					}
-				} catch (e) {
-					console.error('流式请求失败', e);
-					this.$set(this.messages[aiIdx], 'content', '抱歉，AI 回复失败，请重试。');
-				} finally {
-					this.sending = false;
-					this.scrollToBottom();
-					uni.setStorageSync('chatHistory', this.messages);
-				}
-			},
-
-			/* 滚动到底部 */
-			scrollToBottom() {
-				this.$nextTick(() => {
-					uni.createSelectorQuery()
-						.in(this)
-						.select('.message-list')
-						.boundingClientRect(rect => {
-							this.scrollTop = (rect?.height || 0) + 9999;
-						})
-						.exec();
-				});
-			},
-
-			// 切换单个引用来源的显示状态
-			toggleSingleReference(msgIdx, refIdx) {
-				if (!this.showSingleReference[msgIdx]) this.$set(this.showSingleReference, msgIdx, {});
-				const cur = this.showSingleReference[msgIdx][refIdx];
-				this.$set(this.showSingleReference[msgIdx], refIdx, !cur);
-			},
-
-			// 点赞消息处理
-			handleThumbUpClick(id) {
-				if (!id) return;
-				uni.request({
-						url: BASE_URL + '/feedback',
-						method: 'POST',
-						data: {
-							messageId: id,
-							action: 1
-						}
-					}).then(() => this.$toast('点赞成功', 'success'))
-					.catch(() => this.$toast('点赞失败'));
-			},
-
-			// 点踩消息处理
-			handleThumbDownClick(id) {
-				if (!id) return;
-				uni.request({
-						url: BASE_URL + '/feedback',
-						method: 'POST',
-						data: {
-							messageId: id,
-							action: 0
-						}
-					}).then(() => this.$toast('已反馈'))
-					.catch(() => this.$toast('反馈失败'));
-			},
-
-			// 新建聊天会话
-			newChat() {
-				this.messages = [];
-				this.conversation_id = null;
-				uni.removeStorageSync('conversation_id');
-				uni.removeStorageSync('chatHistory');
-				this.initConversation();
-				this.$toast('新聊天已开始');
-			},
-
-			/* 选择图片并上传 */
-			selectImage() {
-				uni.chooseImage({
-					count: 1,
-					sizeType: ['compressed'], // 压缩
-					sourceType: ['album', 'camera'],
-					success: res => {
-						const temp = res.tempFilePaths[0];
-						// 上传图片
-						uni.uploadFile({
-							url: BASE_URL + '/files/upload',
-							filePath: temp,
-							name: 'file',
-							formData: {
-								user: this.user,
-								userId: this.userId,
-								userName: this.userName
-							},
-							success: ({
-								data
-							}) => {
-								try {
-									const {
-										url
-									} = JSON.parse(data);
-									if (url) {
-										// 添加图片消息到列表
-										this.messages.push({
-											sender: 'user',
-											avatar: '/static/yonghu.png',
-											content: '',
-											image: url,
-											messageId: Date.now().toString()
-										});
-										this.scrollToBottom();
-									}
-								} catch (e) {
-									this.$toast('上传解析失败');
-								}
-							},
-							fail: () => this.$toast('上传失败')
-						});
-					}
-				});
-			}
+						},
+						fail: () => this.$toast('上传失败')
+					});
+				},
+				fail: () => this.$toast('选择图片失败')
+			});
 		}
-	};
+	}
+};
 </script>
 
 <style scoped>
-	/* 引入全局样式 */
-	@import '@/static/scss/ai_index.css';
+/* 引入全局样式 */
+@import '@/static/scss/ai_index.css';
 </style>
\ No newline at end of file
diff --git a/static/scss/ai_index.css b/static/scss/ai_index.css
index b3da404..ef69e80 100644
--- a/static/scss/ai_index.css
+++ b/static/scss/ai_index.css
@@ -8,7 +8,7 @@
 	width: 100%;
 	overflow: hidden;
 	position: relative;
-	background-color: #F5F5F5;
+	background-color: #f5f5f5;
 	padding-top: 10px;
 	/* 为固定导航栏预留空间 */
 	box-sizing: border-box;
@@ -45,6 +45,7 @@
 	color: #333;
 	text-align: center;
 	flex: 1;
+	margin-right: 45px;
 }
 
 .nav-icon {
@@ -166,7 +167,7 @@
 	background-color: #fff;
 	border-top: 1px solid #eee;
 	position: fixed;
-	bottom: 0;
+	bottom: -1px;
 	left: 0;
 	width: 100%;
 	z-index: 10;
@@ -260,10 +261,9 @@
 	padding-left: 1em;
 }
 
-
 /* 可点击文档名 */
 .doc-name-link {
-	color: #007AFF;
+	color: #007aff;
 	text-decoration: underline;
 	margin-right: 16rpx;
 	font-size: 10rpx;
@@ -301,7 +301,7 @@
 }
 
 .doc-name-link {
-	color: #007AFF;
+	color: #007aff;
 	text-decoration: underline;
 	margin-right: 16rpx;
 	font-size: clamp(13px, 3vw, 15px);
@@ -344,6 +344,28 @@
 	transform: scale(0.95);
 }
 
+.loading-history {
+	text-align: center;
+	padding: 20rpx;
+	color: #999;
+	font-size: 28rpx;
+}
+
+.no-more-history {
+	text-align: center;
+	padding: 20rpx;
+	color: #ccc;
+	font-size: 24rpx;
+}
+
+.debug-info {
+	color: #888;
+	font-size: 12px;
+	margin-top: 5px;
+	border-top: 1px dashed #eee;
+	padding-top: 5px;
+}
+
 /* ============= 小屏设备适配 ============= */
 @media (max-width: 600px) {
 	.message-content {
diff --git a/utils/ai_request.js b/utils/ai_request.js
index 35b6a55..6ed62ee 100644
--- a/utils/ai_request.js
+++ b/utils/ai_request.js
@@ -6,9 +6,13 @@ import {
 
 const service = axios.create({
 	// baseURL: 'http://localhost:9090/dev-api/aitutor/aichat',
-	baseURL: 'http://localhost:8088/aitutor/aichat',
+	// baseURL: 'http://localhost:8088/aitutor/aichat',
 	// baseURL: 'http://localhost:8080/aitutor/aichat',
+	baseURL: 'http://localhost:8088',
 	timeout: 15000,
+	headers: {
+		'Content-Type': 'application/json'
+	}
 })
 
 // 请求拦截器：统一加 token
diff --git a/utils/ai_stream.js b/utils/ai_stream.js
index e42ab93..ea8fd00 100644
--- a/utils/ai_stream.js
+++ b/utils/ai_stream.js
@@ -1,4 +1,4 @@
-// src/utils/ai_stream.js  (H5 优化版)
+// src/utils/ai_stream.js
 import {
 	getToken
 } from '@/utils/auth';
@@ -23,7 +23,6 @@ export function createChatStream(params) {
 	const fetchPromise = fetch(url, {
 			method: 'POST',
 			headers: {
-				'Accept': 'text/event-stream',
 				'Content-Type': 'application/json',
 				'Authorization': `Bearer ${token}`,
 				'X-Request-ID': requestId
@@ -32,26 +31,27 @@ export function createChatStream(params) {
 				query: params.prompt,
 				user_id: params.userId,
 				user_name: params.userName,
-				user_token: params.user_token || '123', 
+				user_token: params.user_token || '123',
 				user_role: 'student',
-				conversation_id: params.conversationId || null, 
+				conversation_id: params.conversationId || null,
 			}),
 			signal: controller.signal
 		})
-		.then(resp => {
-			if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
-			if (!resp.body) throw new Error('Response body is null');
-			return resp.body;
+		.then(response => {
+			if (!response.ok) throw new Error(`HTTP ${response.status}`);
+			if (!response.body) throw new Error('Response body is null');
+			return {
+				reader: response.body.getReader(),
+				decoder: new TextDecoder('utf-8')
+			};
 		});
 
-	return fetchPromise.then(body => ({
-		stream: Promise.resolve({
-			reader: body.getReader(),
-			decoder: new TextDecoder('utf-8')
-		}),
-		cancel: reason => !controller.signal.aborted && controller.abort(reason)
-	})).catch(err => ({
-		stream: Promise.reject(err),
-		cancel: () => {}
-	}));
+	return {
+		stream: fetchPromise,
+		cancel: (reason) => {
+			if (!controller.signal.aborted) {
+				controller.abort(reason);
+			}
+		}
+	};
 }
\ No newline at end of file