diff --git a/keyBoard/Class/AiTalk/V/KBAICommentFooterView.m b/keyBoard/Class/AiTalk/V/KBAICommentFooterView.m
index 82ba72b..6457492 100644
--- a/keyBoard/Class/AiTalk/V/KBAICommentFooterView.m
+++ b/keyBoard/Class/AiTalk/V/KBAICommentFooterView.m
@@ -40,12 +40,12 @@
     make.height.mas_equalTo(24);
   }];
 
-  [self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {
-    make.left.equalTo(self.contentView).offset(16);
-    make.right.equalTo(self.contentView).offset(-16);
-    make.bottom.equalTo(self.contentView);
-    make.height.mas_equalTo(0.5);
-  }];
+//  [self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {
+//    make.left.equalTo(self.contentView).offset(16);
+//    make.right.equalTo(self.contentView).offset(-16);
+//    make.bottom.equalTo(self.contentView);
+//    make.height.mas_equalTo(0.5);
+//  }];
 }
 
 #pragma mark - Configuration
diff --git a/keyBoard/Class/AiTalk/V/KBAICommentView.m b/keyBoard/Class/AiTalk/V/KBAICommentView.m
index 4c9058d..91b8048 100644
--- a/keyBoard/Class/AiTalk/V/KBAICommentView.m
+++ b/keyBoard/Class/AiTalk/V/KBAICommentView.m
@@ -16,6 +16,7 @@
 #import "AiVM.h"
 #import <MJExtension/MJExtension.h>
 #import <Masonry/Masonry.h>
+#import <MJRefresh/MJRefresh.h>
 
 static NSString *const kCommentHeaderIdentifier = @"CommentHeader";
 static NSString *const kReplyCellIdentifier = @"ReplyCell";
@@ -33,6 +34,12 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
 @property(nonatomic, strong) NSMutableArray<KBAICommentModel *> *comments;
 @property(nonatomic, assign) NSInteger totalCommentCount;
 
+/// 分页参数
+@property(nonatomic, assign) NSInteger currentPage;
+@property(nonatomic, assign) NSInteger pageSize;
+@property(nonatomic, assign) BOOL isLoading;
+@property(nonatomic, assign) BOOL hasMoreData;
+
 /// 键盘高度
 @property(nonatomic, assign) CGFloat keyboardHeight;
 /// 输入框底部约束
@@ -56,6 +63,9 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
   self = [super initWithFrame:frame];
   if (self) {
     self.comments = [NSMutableArray array];
+    self.currentPage = 1;
+    self.pageSize = 20;
+    self.hasMoreData = YES;
     [self setupUI];
     [self setupKeyboardObservers];
   }
@@ -114,6 +124,20 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
     make.left.right.equalTo(self);
     make.bottom.equalTo(self.inputView.mas_top);
   }];
+
+  // 上拉加载更多
+  __weak typeof(self) weakSelf = self;
+  MJRefreshAutoNormalFooter *footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
+    __strong typeof(weakSelf) strongSelf = weakSelf;
+    if (!strongSelf) {
+      return;
+    }
+    [strongSelf loadMoreComments];
+  }];
+  footer.stateLabel.hidden = YES;
+  footer.backgroundColor = [UIColor clearColor];
+  footer.automaticallyHidden = YES;
+  self.tableView.mj_footer = footer;
 }
 
 #pragma mark - Keyboard Observers
@@ -174,49 +198,87 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
 #pragma mark - Data Loading
 
 - (void)loadComments {
+  if (self.isLoading) {
+    return;
+  }
+
+  self.currentPage = 1;
+  self.hasMoreData = YES;
+  [self.tableView.mj_footer resetNoMoreData];
+
+  [self fetchCommentsAtPage:self.currentPage append:NO];
+}
+
+- (void)loadMoreComments {
+  if (self.isLoading) {
+    [self.tableView.mj_footer endRefreshing];
+    return;
+  }
+
+  if (!self.hasMoreData) {
+    [self.tableView.mj_footer endRefreshingWithNoMoreData];
+    return;
+  }
+
+  NSInteger nextPage = self.currentPage + 1;
+  [self fetchCommentsAtPage:nextPage append:YES];
+}
+
+- (void)fetchCommentsAtPage:(NSInteger)page append:(BOOL)append {
   if (self.companionId <= 0) {
     NSLog(@"[KBAICommentView] companionId 未设置，无法加载评论");
     [self showEmptyState];
+    [self.tableView.mj_footer endRefreshing];
     return;
   }
+
+  self.isLoading = YES;
   
   __weak typeof(self) weakSelf = self;
   [self.aiVM fetchCommentsWithCompanionId:self.companionId
-                                   pageNum:1
-                                  pageSize:20
+                                   pageNum:page
+                                  pageSize:self.pageSize
                                 completion:^(KBCommentPageModel *pageModel, NSError *error) {
     __strong typeof(weakSelf) strongSelf = weakSelf;
     if (!strongSelf) {
       return;
     }
+
+    strongSelf.isLoading = NO;
     
     if (error) {
       NSLog(@"[KBAICommentView] 加载评论失败：%@", error.localizedDescription);
-      // 加载失败也显示空态
       dispatch_async(dispatch_get_main_queue(), ^{
-        [strongSelf showEmptyStateWithError];
+        if (append) {
+          [strongSelf.tableView.mj_footer endRefreshing];
+        } else {
+          [strongSelf showEmptyStateWithError];
+        }
       });
       return;
     }
     
     dispatch_async(dispatch_get_main_queue(), ^{
-      [strongSelf updateCommentsWithPageModel:pageModel];
+      [strongSelf updateCommentsWithPageModel:pageModel append:append];
     });
   }];
 }
 
 /// 更新评论数据（从后端返回的 KBCommentPageModel 转换为 UI 层的 KBAICommentModel）
-- (void)updateCommentsWithPageModel:(KBCommentPageModel *)pageModel {
+- (void)updateCommentsWithPageModel:(KBCommentPageModel *)pageModel append:(BOOL)append {
   if (!pageModel) {
     NSLog(@"[KBAICommentView] pageModel 为空");
     // 数据为空，显示空态
     [self showEmptyState];
+    [self.tableView.mj_footer endRefreshing];
     return;
   }
   
   self.totalCommentCount = pageModel.total;
-  
-  [self.comments removeAllObjects];
+
+  if (!append) {
+    [self.comments removeAllObjects];
+  }
   
   // 获取 tableView 宽度用于计算高度
   CGFloat tableWidth = self.tableView.bounds.size.width;
@@ -224,7 +286,7 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
     tableWidth = [UIScreen mainScreen].bounds.size.width;
   }
   
-  NSLog(@"[KBAICommentView] 加载到 %ld 条评论，共 %ld 条", (long)pageModel.records.count, (long)pageModel.total);
+  NSLog(@"[KBAICommentView] 加载到 %ld 条评论，共 %ld 条，页码：%ld/%ld", (long)pageModel.records.count, (long)pageModel.total, (long)pageModel.current, (long)pageModel.pages);
   
   for (KBCommentItem *item in pageModel.records) {
     // 转换为 KBAICommentModel（使用 MJExtension）
@@ -243,6 +305,20 @@ static NSString *const kCommentFooterIdentifier = @"CommentFooter";
   
   [self updateTitle];
   [self.tableView reloadData];
+
+  // 更新分页状态
+  self.currentPage = pageModel.current > 0 ? pageModel.current : self.currentPage;
+  if (pageModel.pages > 0) {
+    self.hasMoreData = pageModel.current < pageModel.pages;
+  } else {
+    self.hasMoreData = pageModel.records.count >= self.pageSize;
+  }
+
+  if (self.hasMoreData) {
+    [self.tableView.mj_footer endRefreshing];
+  } else {
+    [self.tableView.mj_footer endRefreshingWithNoMoreData];
+  }
   
   // 根据数据是否为空，动态控制空态显示
   if (self.comments.count == 0) {
@@ -641,6 +717,7 @@ static NSInteger const kRepliesLoadCount = 5;
     _tableView.backgroundColor = [UIColor clearColor];
     _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
     _tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
+    _tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 0.01)];
     
     // 关闭空数据占位，避免加载时显示"暂无数据"
     _tableView.useEmptyDataSet = NO;
diff --git a/keyBoard/Class/AiTalk/V/KBAIReplyCell.m b/keyBoard/Class/AiTalk/V/KBAIReplyCell.m
index 8234e03..7e25982 100644
--- a/keyBoard/Class/AiTalk/V/KBAIReplyCell.m
+++ b/keyBoard/Class/AiTalk/V/KBAIReplyCell.m
@@ -51,7 +51,7 @@
   [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
     make.left.equalTo(self.contentView).offset(68); // 16 + 40 + 12 = 68
     make.top.equalTo(self.contentView).offset(8);
-    make.width.height.mas_equalTo(28);
+    make.width.height.mas_equalTo(26);
   }];
 
   [self.userNameLabel mas_makeConstraints:^(MASConstraintMaker *make) {
@@ -171,7 +171,7 @@
   if (!_avatarImageView) {
     _avatarImageView = [[UIImageView alloc] init];
     _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
-    _avatarImageView.layer.cornerRadius = 14;
+    _avatarImageView.layer.cornerRadius = 13;
     _avatarImageView.layer.masksToBounds = YES;
     _avatarImageView.backgroundColor = [UIColor systemGray5Color];
   }
@@ -182,7 +182,7 @@
   if (!_userNameLabel) {
     _userNameLabel = [[UILabel alloc] init];
     _userNameLabel.font = [UIFont systemFontOfSize:13 weight:UIFontWeightMedium];
-    _userNameLabel.textColor = [UIColor secondaryLabelColor];
+    _userNameLabel.textColor = [UIColor colorWithHex:0x9F9F9F];
     _userNameLabel.numberOfLines = 0;
   }
   return _userNameLabel;
@@ -191,8 +191,8 @@
 - (UILabel *)contentLabel {
   if (!_contentLabel) {
     _contentLabel = [[UILabel alloc] init];
-    _contentLabel.font = [UIFont systemFontOfSize:14];
-    _contentLabel.textColor = [UIColor labelColor];
+    _contentLabel.font = [UIFont systemFontOfSize:12];
+    _contentLabel.textColor = [UIColor whiteColor];
     _contentLabel.numberOfLines = 0;
   }
   return _contentLabel;
@@ -201,8 +201,8 @@
 - (UILabel *)timeLabel {
   if (!_timeLabel) {
     _timeLabel = [[UILabel alloc] init];
-    _timeLabel.font = [UIFont systemFontOfSize:11];
-    _timeLabel.textColor = [UIColor secondaryLabelColor];
+    _timeLabel.font = [UIFont systemFontOfSize:12];
+    _timeLabel.textColor = [UIColor colorWithHex:0x9F9F9F];
   }
   return _timeLabel;
 }
diff --git a/keyBoard/Class/AiTalk/V/KBChatAssistantMessageCell.m b/keyBoard/Class/AiTalk/V/KBChatAssistantMessageCell.m
index 965c688..0eea5cc 100644
--- a/keyBoard/Class/AiTalk/V/KBChatAssistantMessageCell.m
+++ b/keyBoard/Class/AiTalk/V/KBChatAssistantMessageCell.m
@@ -83,7 +83,8 @@
     [self.voiceButton mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.equalTo(self.contentView).offset(16);
         make.top.equalTo(self.contentView).offset(8);
-        make.width.height.mas_equalTo(24);
+//        make.width.height.mas_equalTo(24);
+        make.width.height.mas_equalTo(0);
     }];
     
     [self.durationLabel mas_makeConstraints:^(MASConstraintMaker *make) {
@@ -105,8 +106,8 @@
     
     // 关键修复：messageLabel 约束必须完整，让 AutoLayout 能推导出 bubbleView 的高度
     [self.messageLabel mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.top.equalTo(self.bubbleView).offset(10);
-        make.bottom.equalTo(self.bubbleView).offset(-10).priority(999); // 降低优先级
+        make.top.equalTo(self.bubbleView).offset(5);
+        make.bottom.equalTo(self.bubbleView).offset(-5).priority(999); // 降低优先级
         make.left.equalTo(self.bubbleView).offset(12);
         make.right.equalTo(self.bubbleView).offset(-12);
         // 关键修复：给 messageLabel 一个最小高度，防止高度为 0
diff --git a/keyBoard/Class/AiTalk/V/KBChatTimeCell.m b/keyBoard/Class/AiTalk/V/KBChatTimeCell.m
index 0fb219c..df3b34e 100644
--- a/keyBoard/Class/AiTalk/V/KBChatTimeCell.m
+++ b/keyBoard/Class/AiTalk/V/KBChatTimeCell.m
@@ -38,8 +38,8 @@
     
     // 布局约束
     [self.timeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.top.equalTo(self.contentView).offset(8);
-        make.bottom.equalTo(self.contentView).offset(-8);
+        make.top.equalTo(self.contentView).offset(1);
+        make.bottom.equalTo(self.contentView).offset(-1);
         make.centerX.equalTo(self.contentView);
     }];
 }
diff --git a/keyBoard/Class/AiTalk/V/KBPersonaChatCell.m b/keyBoard/Class/AiTalk/V/KBPersonaChatCell.m
index de82b49..0e59354 100644
--- a/keyBoard/Class/AiTalk/V/KBPersonaChatCell.m
+++ b/keyBoard/Class/AiTalk/V/KBPersonaChatCell.m
@@ -202,8 +202,14 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     // 关键修复：清空消息时停止音频播放，避免状态混乱
     [self.chatView stopPlayingAudio];
     
-    // 如果有缓存，直接显示
+    // 确保开场白在第一条
+    [self ensureOpeningMessageAtTop];
+
+    // 如果有消息，直接显示（包含开场白）
     if (self.messages.count > 0) {
+        // 同步缓存，避免下次从缓存缺少开场白
+        [[KBAIChatMessageCacheManager shared] saveMessages:self.messages
+                                             forCompanionId:persona.personaId];
         [self.chatView reloadWithMessages:self.messages
                                keepOffset:NO
                           scrollToBottom:YES];
@@ -287,14 +293,19 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
             [newMessages addObject:message];
         }
         
-        // 插入到顶部（历史消息）
+        // 插入历史消息（确保开场白始终是第一条）
         if (weakSelf.currentPage == 1) {
             // 第一页，直接赋值
             weakSelf.messages = newMessages;
+            [weakSelf ensureOpeningMessageAtTop];
         } else {
-            // 后续页，插入到顶部
-            NSIndexSet *indexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, newMessages.count)];
-            [weakSelf.messages insertObjects:newMessages atIndexes:indexSet];
+            // 后续页，插入到开场白之后
+            [weakSelf ensureOpeningMessageAtTop];
+            if (newMessages.count > 0) {
+                NSUInteger insertIndex = [weakSelf hasOpeningMessageAtTop] ? 1 : 0;
+                NSIndexSet *indexSet = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(insertIndex, newMessages.count)];
+                [weakSelf.messages insertObjects:newMessages atIndexes:indexSet];
+            }
         }
         
         // 刷新 UI
@@ -306,8 +317,8 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
                                   scrollToBottom:scrollToBottom];
             [weakSelf.chatView endLoadMoreWithHasMoreData:weakSelf.hasMoreHistory];
             
-            // ✅ 保存到缓存
-            [[KBAIChatMessageCacheManager shared] saveMessages:weakSelf.messages 
+            // ✅ 保存到缓存（包含开场白）
+            [[KBAIChatMessageCacheManager shared] saveMessages:weakSelf.messages
                                                  forCompanionId:companionId];
         });
         
@@ -332,10 +343,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
 
 - (void)showOpeningMessage {
     // 显示开场白作为第一条消息
-    KBAiChatMessage *openingMsg = [KBAiChatMessage assistantMessageWithText:self.persona.introText];
-    openingMsg.isComplete = YES;
-    openingMsg.needsTypewriterEffect = NO;
-    [self.messages addObject:openingMsg];
+    [self ensureOpeningMessageAtTop];
     
     dispatch_async(dispatch_get_main_queue(), ^{
         [self.chatView reloadWithMessages:self.messages
@@ -344,6 +352,41 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     });
 }
 
+- (BOOL)hasOpeningMessageAtTop {
+    if (self.messages.count == 0) {
+        return NO;
+    }
+    return [self isOpeningMessage:self.messages.firstObject];
+}
+
+- (BOOL)isOpeningMessage:(KBAiChatMessage *)message {
+    if (!message) {
+        return NO;
+    }
+    NSString *introText = self.persona.introText ?: @"";
+    if (introText.length == 0) {
+        return NO;
+    }
+    return (message.type == KBAiChatMessageTypeAssistant) && [message.text isEqualToString:introText];
+}
+
+- (void)ensureOpeningMessageAtTop {
+    NSString *introText = self.persona.introText ?: @"";
+    if (introText.length == 0) {
+        return;
+    }
+    if (!self.messages) {
+        self.messages = [NSMutableArray array];
+    }
+    if ([self hasOpeningMessageAtTop]) {
+        return;
+    }
+    KBAiChatMessage *openingMsg = [KBAiChatMessage assistantMessageWithText:introText];
+    openingMsg.isComplete = YES;
+    openingMsg.needsTypewriterEffect = NO;
+    [self.messages insertObject:openingMsg atIndex:0];
+}
+
 #pragma mark - 通知处理
 
 /// 处理聊天会话被重置的通知
@@ -368,10 +411,8 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         // 清空聊天视图
         [self.chatView clearMessages];
         
-        // 显示开场白
-        if (self.persona.introText.length > 0) {
-            [self showOpeningMessage];
-        }
+        // 显示开场白（始终保持第一条）
+        [self showOpeningMessage];
     }
 }
 
@@ -386,13 +427,14 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         self.messages = [NSMutableArray array];
     }
     
+    [self ensureOpeningMessageAtTop];
     KBAiChatMessage *message = [KBAiChatMessage userMessageWithText:text];
     [self.messages addObject:message];
     [self.chatView addMessage:message autoScroll:YES];
 }
 
 - (void)appendAssistantMessage:(NSString *)text
-                       audioId:(NSString *)audioId {
+                        audioId:(NSString *)audioId {
     if (text.length == 0) {
         return;
     }
@@ -401,6 +443,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         self.messages = [NSMutableArray array];
     }
     
+    [self ensureOpeningMessageAtTop];
     KBAiChatMessage *message = [KBAiChatMessage assistantMessageWithText:text
                                                                  audioId:audioId];
     message.needsTypewriterEffect = YES;
diff --git a/keyBoard/Class/AiTalk/VM/AiVM.m b/keyBoard/Class/AiTalk/VM/AiVM.m
index e040ab7..94d21c8 100644
--- a/keyBoard/Class/AiTalk/VM/AiVM.m
+++ b/keyBoard/Class/AiTalk/VM/AiVM.m
@@ -242,7 +242,7 @@ autoShowBusinessError:NO
   [[KBNetworkManager shared] uploadFile:API_AI_AUDIO_UPLOAD
                                fileURL:fileURL
                                   name:@"file"
-                              mimeType:@"audio/mp4"
+                              mimeType:@"audio/m4a"
                             parameters:nil
                                headers:nil
                             completion:^(NSDictionary *_Nullable json,