新增接口，界面

keyBoard/Class/AiTalk/V/KBPersonaChatCell.h

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+//
+//  KBPersonaChatCell.h
+//  keyBoard
+//
+//  Created by Kiro on 2026/1/26.
+//
+
+#import <UIKit/UIKit.h>
+#import "KBPersonaModel.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 人设聊天 Cell
+@interface KBPersonaChatCell : UICollectionViewCell
+
+/// 人设数据
+@property (nonatomic, strong) KBPersonaModel *persona;
+
+/// 预加载数据
+- (void)preloadDataIfNeeded;
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBPersonaChatCell.m

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+//
+//  KBPersonaChatCell.m
+//  keyBoard
+//
+//  Created by Kiro on 2026/1/26.
+//
+
+#import "KBPersonaChatCell.h"
+#import "KBChatTableView.h"
+#import "KBAiChatMessage.h"
+#import <Masonry/Masonry.h>
+#import <SDWebImage/SDWebImage.h>
+
+@interface KBPersonaChatCell () <UITableViewDelegate, UITableViewDataSource>
+
+/// 背景图
+@property (nonatomic, strong) UIImageView *backgroundImageView;
+
+/// 头像
+@property (nonatomic, strong) UIImageView *avatarImageView;
+
+/// 人设名称
+@property (nonatomic, strong) UILabel *nameLabel;
+
+/// 开场白
+@property (nonatomic, strong) UILabel *openingLabel;
+
+/// 聊天列表
+@property (nonatomic, strong) UITableView *tableView;
+
+/// 聊天消息
+@property (nonatomic, strong) NSMutableArray<KBAiChatMessage *> *messages;
+
+/// 是否已加载数据
+@property (nonatomic, assign) BOOL hasLoadedData;
+
+@end
+
+@implementation KBPersonaChatCell
+
+#pragma mark - Lifecycle
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        [self setupUI];
+    }
+    return self;
+}
+
+#pragma mark - 1：控件初始化
+
+- (void)setupUI {
+    // 背景图
+    [self.contentView addSubview:self.backgroundImageView];
+    [self.backgroundImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.equalTo(self.contentView);
+    }];
+    
+    // 半透明遮罩
+    UIView *maskView = [[UIView alloc] init];
+    maskView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.3];
+    [self.contentView addSubview:maskView];
+    [maskView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.equalTo(self.contentView);
+    }];
+    
+    // 头像
+    [self.contentView addSubview:self.avatarImageView];
+    [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(self.contentView).offset(80);
+        make.centerX.equalTo(self.contentView);
+        make.size.mas_equalTo(CGSizeMake(80, 80));
+    }];
+    
+    // 人设名称
+    [self.contentView addSubview:self.nameLabel];
+    [self.nameLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(self.avatarImageView.mas_bottom).offset(12);
+        make.centerX.equalTo(self.contentView);
+    }];
+    
+    // 开场白
+    [self.contentView addSubview:self.openingLabel];
+    [self.openingLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(self.nameLabel.mas_bottom).offset(8);
+        make.left.equalTo(self.contentView).offset(40);
+        make.right.equalTo(self.contentView).offset(-40);
+    }];
+    
+    // 聊天列表
+    [self.contentView addSubview:self.tableView];
+    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(self.openingLabel.mas_bottom).offset(30);
+        make.left.right.bottom.equalTo(self.contentView);
+    }];
+}
+
+#pragma mark - Setter
+
+- (void)setPersona:(KBPersonaModel *)persona {
+    _persona = persona;
+    
+    // 重置状态
+    self.hasLoadedData = NO;
+    self.messages = [NSMutableArray array];
+    
+    // 设置 UI
+    [self.backgroundImageView sd_setImageWithURL:[NSURL URLWithString:persona.coverImageUrl]
+                                placeholderImage:[UIImage imageNamed:@"placeholder_bg"]];
+    [self.avatarImageView sd_setImageWithURL:[NSURL URLWithString:persona.avatarUrl]
+                            placeholderImage:[UIImage imageNamed:@"placeholder_avatar"]];
+    self.nameLabel.text = persona.name;
+    self.openingLabel.text = persona.shortDesc.length > 0 ? persona.shortDesc : persona.introText;
+    
+    [self.tableView reloadData];
+}
+
+#pragma mark - 2：数据加载
+
+- (void)preloadDataIfNeeded {
+    if (self.hasLoadedData) {
+        return;
+    }
+    
+    // TODO: 这里后续需要用 chatId 去请求聊天记录
+    // 目前先添加开场白作为第一条消息
+    self.hasLoadedData = YES;
+    
+    if (self.persona.introText.length > 0) {
+        KBAiChatMessage *openingMsg = [KBAiChatMessage assistantMessageWithText:self.persona.introText];
+        openingMsg.isComplete = YES;
+        [self.messages addObject:openingMsg];
+        [self.tableView reloadData];
+    }
+}
+
+#pragma mark - UITableViewDataSource
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    return self.messages.count;
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
+    if (!cell) {
+        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
+        cell.backgroundColor = [UIColor clearColor];
+        cell.textLabel.textColor = [UIColor whiteColor];
+        cell.textLabel.numberOfLines = 0;
+    }
+    
+    KBAiChatMessage *message = self.messages[indexPath.row];
+    cell.textLabel.text = message.text;
+    
+    return cell;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
+    return UITableViewAutomaticDimension;
+}
+
+#pragma mark - Lazy Load
+
+- (UIImageView *)backgroundImageView {
+    if (!_backgroundImageView) {
+        _backgroundImageView = [[UIImageView alloc] init];
+        _backgroundImageView.contentMode = UIViewContentModeScaleAspectFill;
+        _backgroundImageView.clipsToBounds = YES;
+    }
+    return _backgroundImageView;
+}
+
+- (UIImageView *)avatarImageView {
+    if (!_avatarImageView) {
+        _avatarImageView = [[UIImageView alloc] init];
+        _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
+        _avatarImageView.layer.cornerRadius = 40;
+        _avatarImageView.layer.borderWidth = 3;
+        _avatarImageView.layer.borderColor = [UIColor whiteColor].CGColor;
+        _avatarImageView.clipsToBounds = YES;
+    }
+    return _avatarImageView;
+}
+
+- (UILabel *)nameLabel {
+    if (!_nameLabel) {
+        _nameLabel = [[UILabel alloc] init];
+        _nameLabel.font = [UIFont boldSystemFontOfSize:20];
+        _nameLabel.textColor = [UIColor whiteColor];
+        _nameLabel.textAlignment = NSTextAlignmentCenter;
+    }
+    return _nameLabel;
+}
+
+- (UILabel *)openingLabel {
+    if (!_openingLabel) {
+        _openingLabel = [[UILabel alloc] init];
+        _openingLabel.font = [UIFont systemFontOfSize:14];
+        _openingLabel.textColor = [[UIColor whiteColor] colorWithAlphaComponent:0.9];
+        _openingLabel.textAlignment = NSTextAlignmentCenter;
+        _openingLabel.numberOfLines = 2;
+    }
+    return _openingLabel;
+}
+
+- (UITableView *)tableView {
+    if (!_tableView) {
+        _tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
+        _tableView.delegate = self;
+        _tableView.dataSource = self;
+        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
+        _tableView.backgroundColor = [UIColor clearColor];
+        _tableView.showsVerticalScrollIndicator = NO;
+        _tableView.estimatedRowHeight = 60;
+        _tableView.rowHeight = UITableViewAutomaticDimension;
+        
+        if (@available(iOS 11.0, *)) {
+            _tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
+        }
+    }
+    return _tableView;
+}
+
+@end