diff --git a/frontend/src/components/chat/ChatPanel.vue b/frontend/src/components/chat/ChatPanel.vue
index fef3aef..bfec2de 100644
--- a/frontend/src/components/chat/ChatPanel.vue
+++ b/frontend/src/components/chat/ChatPanel.vue
@@ -198,7 +198,7 @@ onMounted(() => {
 
 /* 面板 */
 .chat-panel {
-  width: 380px;
+  width: 480px;
   max-width: 100vw;
   height: 100vh;
   background: var(--paper-50);
diff --git a/start.bat b/start.bat
new file mode 100644
index 0000000..8d1ead7
--- /dev/null
+++ b/start.bat
@@ -0,0 +1,49 @@
+@echo off
+chcp 65001 >nul
+title Noval - 小说创作应用
+
+echo ========================================
+echo   Noval 启动中...
+echo ========================================
+echo.
+
+:: 检查后端虚拟环境
+if not exist "backend\.venv\Scripts\uvicorn.exe" (
+    echo [!] 未检测到后端虚拟环境，正在初始化...
+    cd backend
+    py -3 -m venv .venv
+    .venv\Scripts\pip install -r requirements.txt
+    cd ..
+    echo.
+)
+
+:: 检查前端依赖
+if not exist "frontend\node_modules" (
+    echo [!] 未检测到前端依赖，正在安装...
+    cd frontend
+    call npm install
+    cd ..
+    echo.
+)
+
+echo [1/2] 启动后端 (port 8000)...
+start "Noval-Backend" cmd /c "cd backend && .venv\Scripts\uvicorn app.main:app --port 8000"
+
+echo [2/2] 启动前端 (port 5173)...
+start "Noval-Frontend" cmd /c "cd frontend && npm run dev"
+
+:: 等待服务就绪后打开浏览器
+timeout /t 3 /nobreak >nul
+start http://localhost:5173
+
+echo.
+echo ========================================
+echo   Noval 已启动！
+echo   前端: http://localhost:5173
+echo   后端: http://localhost:8000/docs
+echo ========================================
+echo   关闭此窗口不会停止服务
+echo   如需停止，请关闭 Noval-Backend 和
+echo   Noval-Frontend 两个终端窗口
+echo ========================================
+pause