From 2496e0468598571091edde659740a604332486d0 Mon Sep 17 00:00:00 2001
From: thzxx <thzxx@gitee.com>
Date: Mon, 20 Apr 2026 21:00:42 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E7=94=A8=E6=88=B7?=
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renderMessages() 中 existingCount 使用 children.length 计算，
包含了 currentPlaceholder（正在思考...）元素，导致：
1. 新用户消息被误判为已渲染而跳过
2. 旧 placeholder 残留 DOM 变成独立消息气泡

修复：existingCount 改用 querySelectorAll('.message') 只计算实际消息元素
---
 src/renderer/components/chat-area.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/renderer/components/chat-area.ts b/src/renderer/components/chat-area.ts
index f80b6ef..2a5d9bb 100644
--- a/src/renderer/components/chat-area.ts
+++ b/src/renderer/components/chat-area.ts
@@ -89,7 +89,8 @@ export function renderMessages(): void {
   emptyStateEl.style.display = 'none';
   messagesContainerEl.style.display = '';
 
-  const existingCount = messagesContainerEl.children.length;
+  // 只计算已渲染的 .message 元素（排除 placeholder 和其他非消息元素）
+  const existingCount = messagesContainerEl.querySelectorAll('.message').length;
   const isNewMessage = existingCount > 0 && existingCount < msgs.length;
   for (let i = existingCount; i < msgs.length; i++) {
     appendMessageDOM(msgs[i], i);