1

keyBoard/Class/AiTalk/VC/KBAIHomeVC.m

@@ -422,7 +422,12 @@
 
 - (void)updateChatViewBottomInset {
     CGFloat bottomSpacing = (self.currentKeyboardHeight > 0.0) ? (self.currentKeyboardHeight + 8.0) : self.baseInputBarBottomSpacing;
-    CGFloat bottomInset = self.voiceInputBarHeight + bottomSpacing;
+    
+    // 关键修复：减少 bottomInset，因为 chatView 已经通过约束避开了底部的 avatar 区域
+    // 只需要留出一点空间（比如20）让最后一条消息不紧贴 chatView 底部即可
+    CGFloat bottomInset = 20; // 简单的缓冲空间
+    
+    NSLog(@"[KBAIHomeVC] 更新 ChatView bottomInset: %.2f", bottomInset);
     
     for (NSIndexPath *indexPath in self.collectionView.indexPathsForVisibleItems) {
         KBPersonaChatCell *cell = (KBPersonaChatCell *)[self.collectionView cellForItemAtIndexPath:indexPath];