diff --git a/services/tui_service.py b/services/tui_service.py
index bc772af..469a491 100644
--- a/services/tui_service.py
+++ b/services/tui_service.py
@@ -7,7 +7,7 @@ import io
 import time
 from textual.app import App
 from textual.containers import Container, ScrollableContainer
-from textual.widgets import Static, Input
+from textual.widgets import Static, Input, Header
 from textual.suggester import Suggester
 
 try:
@@ -551,16 +551,16 @@ class TUIFramework(App):
     
     
     def _generate_css(self):
-        """动态生成 CSS — 经典三行布局：状态栏 + 主内容 + 固定底部输入"""
+        """动态生成 CSS — 标题 + 状态栏 + 主内容 + 底部输入"""
         return """
     Screen {
         layout: grid;
-        grid-size: 1 3;
-        grid-rows: auto 1fr 3;
+        grid-size: 1 4;
+        grid-rows: auto auto 1fr 5;
     }
 
     #monitor-area {
-        height: 2;
+        height: 3;
         padding: 0 1;
         background: $panel;
         color: $text;
@@ -573,7 +573,7 @@ class TUIFramework(App):
     }
 
     #input-area {
-        height: 3;
+        height: 5;
         border: solid $secondary;
         padding: 0 1;
     }
@@ -590,7 +590,8 @@ class TUIFramework(App):
     """
 
     def compose(self):
-        """组合界面 — 状态栏 / 主显示区(日志+消息) / 底部输入栏"""
+        """组合界面 — 标题 + 状态栏 / 主显示区 / 底部输入栏"""
+        yield Header()
         yield Container(
             self.system_monitor,
             self.plugin_panel,