diff --git a/packages/backend/src/database/schema.registry.ts b/packages/backend/src/database/schema.registry.ts
index 2da886d..f140787 100644
--- a/packages/backend/src/database/schema.registry.ts
+++ b/packages/backend/src/database/schema.registry.ts
@@ -2,6 +2,7 @@ import { Database } from 'sqlite3';
 import * as schemaSql from './schema';
 import * as appearanceRepository from '../repositories/appearance.repository';
 import * as terminalThemeRepository from '../repositories/terminal-theme.repository';
+import * as settingsRepository from '../repositories/settings.repository'; // <-- Import settings repository
 import { presetTerminalThemes } from '../config/preset-themes-definition';
 import { runDb } from './connection'; // Import runDb for init functions
 
@@ -16,20 +17,7 @@ export interface TableDefinition {
 
 // --- Initialization Functions ---
 
-/**
- * Initializes default settings in the settings table.
- */
-const initSettingsTable = async (db: Database): Promise<void> => {
-    const defaultSettings = [
-        { key: 'ipWhitelistEnabled', value: 'false' },
-        { key: 'ipWhitelist', value: '' }
-    ];
-    for (const setting of defaultSettings) {
-        // Use INSERT OR IGNORE to avoid errors if settings already exist
-        await runDb(db, "INSERT OR IGNORE INTO settings (key, value) VALUES (?, ?)", [setting.key, setting.value]);
-    }
-    console.log('[DB Init] 默认 settings 初始化检查完成。');
-};
+// Remove the old initSettingsTable function, as the logic is now in the repository
 
 /**
  * Initializes preset terminal themes.
@@ -66,7 +54,7 @@ export const tableDefinitions: TableDefinition[] = [
     {
         name: 'settings',
         sql: schemaSql.createSettingsTableSQL,
-        init: initSettingsTable
+        init: settingsRepository.ensureDefaultSettingsExist // <-- Use the function from the repository
     },
     { name: 'audit_logs', sql: schemaSql.createAuditLogsTableSQL },
     { name: 'api_keys', sql: schemaSql.createApiKeysTableSQL },
diff --git a/packages/backend/src/repositories/settings.repository.ts b/packages/backend/src/repositories/settings.repository.ts
index 27d41fd..e60cf1b 100644
--- a/packages/backend/src/repositories/settings.repository.ts
+++ b/packages/backend/src/repositories/settings.repository.ts
@@ -1,8 +1,10 @@
 // packages/backend/src/repositories/settings.repository.ts
-import { getDbInstance, runDb, getDb as getDbRow, allDb } from '../database/connection'; // Import new async helpers
+import { getDbInstance, runDb, getDb as getDbRow, allDb } from '../database/connection';
+import { SidebarConfig } from '../types/settings.types'; // <-- Correct import path
+import * as sqlite3 from 'sqlite3'; // Import sqlite3 for Database type hint
 
-// Remove top-level db instance
-// const db = getDb();
+// Define keys for specific settings
+const SIDEBAR_CONFIG_KEY = 'sidebarConfig';
 
 export interface Setting {
   key: string;
@@ -93,3 +95,94 @@ export const settingsRepository = {
     }
   },
 };
+
+// --- Specific Setting Getters/Setters ---
+
+/**
+ * 获取侧栏配置
+ * @returns Promise<SidebarConfig> - Returns the parsed config or default
+ */
+export const getSidebarConfig = async (): Promise<SidebarConfig> => {
+    const defaultValue: SidebarConfig = { left: [], right: [] };
+    try {
+        const jsonString = await settingsRepository.getSetting(SIDEBAR_CONFIG_KEY);
+        if (jsonString) {
+            try {
+                const config = JSON.parse(jsonString);
+                // Basic validation
+                if (config && Array.isArray(config.left) && Array.isArray(config.right)) {
+                    // TODO: Add deeper validation if needed (e.g., check if items are valid PaneName)
+                    return config as SidebarConfig;
+                }
+                console.warn(`[SettingsRepo] Invalid sidebarConfig format found in DB: ${jsonString}. Returning default.`);
+            } catch (parseError) {
+                console.error(`[SettingsRepo] Failed to parse sidebarConfig JSON from DB: ${jsonString}`, parseError);
+            }
+        }
+    } catch (error) {
+        console.error(`[SettingsRepo] Error fetching sidebar config setting (key: ${SIDEBAR_CONFIG_KEY}):`, error);
+    }
+    // Return default if not found, invalid, or error occurred
+    return defaultValue;
+};
+
+/**
+ * 设置侧栏配置
+ * @param config - The sidebar configuration object
+ */
+export const setSidebarConfig = async (config: SidebarConfig): Promise<void> => {
+    try {
+        // Basic validation before stringifying
+        if (!config || typeof config !== 'object' || !Array.isArray(config.left) || !Array.isArray(config.right)) {
+             throw new Error('Invalid sidebar config object provided.');
+        }
+        // TODO: Add deeper validation if needed (e.g., check PaneName validity)
+        const jsonString = JSON.stringify(config);
+        await settingsRepository.setSetting(SIDEBAR_CONFIG_KEY, jsonString);
+    } catch (error) {
+        console.error(`[SettingsRepo] Error setting sidebar config (key: ${SIDEBAR_CONFIG_KEY}):`, error);
+        throw new Error('Failed to save sidebar configuration.');
+    }
+};
+
+
+// --- Initialization ---
+
+/**
+ * Ensures default settings exist in the settings table.
+ * This function should be called during database initialization.
+ * @param db - The active database instance
+ */
+export const ensureDefaultSettingsExist = async (db: sqlite3.Database): Promise<void> => {
+    const defaultSettings: Record<string, string> = {
+        language: 'en', // Default language
+        ipWhitelistEnabled: 'false',
+        ipWhitelist: '',
+        maxLoginAttempts: '5',
+        loginBanDuration: '300', // 5 minutes in seconds
+        focusSwitcherSequence: JSON.stringify(["quickCommandsSearch", "commandHistorySearch", "fileManagerSearch", "commandInput", "terminalSearch"]), // Default focus sequence
+        navBarVisible: 'true', // Default nav bar visibility
+        layoutTree: 'null', // Default layout tree (null initially)
+        autoCopyOnSelect: 'false', // Default auto copy setting
+        showPopupFileEditor: 'false', // Default popup editor setting
+        shareFileEditorTabs: 'true', // Default editor tab sharing
+        dockerStatusIntervalSeconds: '5', // Default Docker refresh interval
+        dockerDefaultExpand: 'false', // Default Docker expand state
+        statusMonitorIntervalSeconds: '3', // Default Status Monitor interval
+        [SIDEBAR_CONFIG_KEY]: JSON.stringify({ left: [], right: [] }), // Default sidebar config
+        // Add other default settings here
+    };
+    const nowSeconds = Math.floor(Date.now() / 1000);
+    const sqlInsertOrIgnore = `INSERT OR IGNORE INTO settings (key, value, created_at, updated_at) VALUES (?, ?, ?, ?)`;
+
+    console.log('[SettingsRepo] Ensuring default settings exist...');
+    try {
+        for (const [key, value] of Object.entries(defaultSettings)) {
+            await runDb(db, sqlInsertOrIgnore, [key, value, nowSeconds, nowSeconds]);
+        }
+        console.log('[SettingsRepo] Default settings check complete.');
+    } catch (err: any) {
+        console.error(`[SettingsRepo] Error ensuring default settings:`, err.message);
+        throw new Error(`Failed to ensure default settings: ${err.message}`);
+    }
+};
diff --git a/packages/backend/src/services/settings.service.ts b/packages/backend/src/services/settings.service.ts
index 7883d43..6abeede 100644
--- a/packages/backend/src/services/settings.service.ts
+++ b/packages/backend/src/services/settings.service.ts
@@ -1,4 +1,5 @@
-import { settingsRepository, Setting } from '../repositories/settings.repository';
+import { settingsRepository, Setting, getSidebarConfig as getSidebarConfigFromRepo, setSidebarConfig as setSidebarConfigInRepo } from '../repositories/settings.repository'; // Import specific repo functions
+import { SidebarConfig, PaneName, UpdateSidebarConfigDto } from '../types/settings.types'; // <-- Correct import path
 
 // +++ 定义默认的焦点切换顺序 +++
 const DEFAULT_FOCUS_SEQUENCE = ["quickCommandsSearch", "commandHistorySearch", "fileManagerSearch", "commandInput", "terminalSearch"];
@@ -291,5 +292,68 @@ export const settingsService = {
      console.error(`[Service] Error calling settingsRepository.setSetting for key ${STATUS_MONITOR_INTERVAL_SECONDS_KEY}:`, error);
      throw new Error('Failed to save status monitor interval setting.');
    }
- } // *** 最后的方法后面不需要逗号 ***
-};
+ }, // *** 确保这里有逗号 ***
+
+ // --- Sidebar Config Specific Functions ---
+
+ /**
+  * 获取侧栏配置
+  * @returns Promise<SidebarConfig>
+  */
+ async getSidebarConfig(): Promise<SidebarConfig> {
+     console.log('[SettingsService] Getting sidebar config...');
+     // Directly call the specific repository function
+     const config = await getSidebarConfigFromRepo();
+     console.log('[SettingsService] Returning sidebar config:', config);
+     return config;
+ },
+
+ /**
+  * 设置侧栏配置
+  * @param configDto - The sidebar configuration object from DTO
+  * @returns Promise<void>
+  */
+ async setSidebarConfig(configDto: UpdateSidebarConfigDto): Promise<void> {
+     console.log('[SettingsService] Setting sidebar config:', configDto);
+
+     // --- Validation ---
+     if (!configDto || typeof configDto !== 'object' || !Array.isArray(configDto.left) || !Array.isArray(configDto.right)) {
+         throw new Error('无效的侧栏配置格式。必须包含 left 和 right 数组。');
+     }
+
+     // Validate PaneName (using the type imported)
+     const validPaneNames: Set<PaneName> = new Set([
+         'connections', 'terminal', 'commandBar', 'fileManager',
+         'editor', 'statusMonitor', 'commandHistory', 'quickCommands',
+         'dockerManager'
+     ]);
+
+     const validatePaneArray = (arr: any[], side: string) => {
+         if (!arr.every(item => typeof item === 'string' && validPaneNames.has(item as PaneName))) {
+             const invalidItems = arr.filter(item => typeof item !== 'string' || !validPaneNames.has(item as PaneName));
+             throw new Error(`侧栏配置 (${side}) 包含无效的面板名称: ${invalidItems.join(', ')}`);
+         }
+     };
+
+     validatePaneArray(configDto.left, 'left');
+     validatePaneArray(configDto.right, 'right');
+
+     // Prevent duplicates (optional, uncomment if needed)
+     // const allPanes = [...configDto.left, ...configDto.right];
+     // const uniquePanes = new Set(allPanes);
+     // if (allPanes.length !== uniquePanes.size) {
+     //     throw new Error('侧栏配置中不允许包含重复的面板。');
+     // }
+
+     // Prepare the data in the exact SidebarConfig format expected by the repo
+     const configToSave: SidebarConfig = {
+         left: configDto.left,
+         right: configDto.right,
+     };
+
+     // Directly call the specific repository function
+     await setSidebarConfigInRepo(configToSave);
+     console.log('[SettingsService] Sidebar config successfully set.');
+ } // <-- No comma after the last method in the object
+
+}; // <-- End of settingsService object definition
diff --git a/packages/backend/src/settings/settings.controller.ts b/packages/backend/src/settings/settings.controller.ts
index db863fd..f51820c 100644
--- a/packages/backend/src/settings/settings.controller.ts
+++ b/packages/backend/src/settings/settings.controller.ts
@@ -1,9 +1,10 @@
 import { Request, Response } from 'express';
 import { settingsService } from '../services/settings.service';
 import { AuditLogService } from '../services/audit.service'; // 引入 AuditLogService
-import { ipBlacklistService } from '../services/ip-blacklist.service'; // 引入 IP 黑名单服务
+import { ipBlacklistService } from '../services/ip-blacklist.service';
+import { UpdateSidebarConfigDto } from '../types/settings.types'; // <-- Correct import path
 
-const auditLogService = new AuditLogService(); // 实例化 AuditLogService
+const auditLogService = new AuditLogService();
 
 export const settingsController = {
   /**
@@ -291,5 +292,59 @@ export const settingsController = {
       console.error('[Controller] 设置终端选中自动复制时出错:', error);
       res.status(500).json({ message: '设置终端选中自动复制失败', error: error.message });
     }
-  } // *** 最后的方法后面不需要逗号 ***
-};
+  }, // *** 确保这里有逗号 ***
+
+ // --- Sidebar Config Controller Methods ---
+
+ /**
+  * 获取侧栏配置
+  */
+ async getSidebarConfig(req: Request, res: Response): Promise<void> {
+     try {
+         console.log('[Controller] Received request to get sidebar config.');
+         const config = await settingsService.getSidebarConfig();
+         console.log('[Controller] Sending sidebar config to client:', config);
+         res.json(config);
+     } catch (error: any) {
+         console.error('[Controller] 获取侧栏配置时出错:', error);
+         res.status(500).json({ message: '获取侧栏配置失败', error: error.message });
+     }
+ },
+
+ /**
+  * 设置侧栏配置
+  */
+ async setSidebarConfig(req: Request, res: Response): Promise<void> {
+     console.log('[Controller] Received request to set sidebar config.');
+     try {
+         const configDto: UpdateSidebarConfigDto = req.body;
+         console.log('[Controller] Request body:', configDto);
+
+         // --- DTO Validation (Basic) ---
+         // More specific validation happens in the service layer
+         if (!configDto || typeof configDto !== 'object' || !Array.isArray(configDto.left) || !Array.isArray(configDto.right)) {
+             console.warn('[Controller] Invalid sidebar config format received:', configDto);
+             res.status(400).json({ message: '无效的请求体，应为包含 left 和 right 数组的 JSON 对象' });
+             return;
+         }
+
+         console.log('[Controller] Calling settingsService.setSidebarConfig...');
+         await settingsService.setSidebarConfig(configDto);
+         console.log('[Controller] settingsService.setSidebarConfig completed successfully.');
+
+         // auditLogService.logAction('SIDEBAR_CONFIG_UPDATED'); // Optional: Add audit log
+
+         console.log('[Controller] Sending success response.');
+         res.status(200).json({ message: '侧栏配置已成功更新' });
+     } catch (error: any) {
+         console.error('[Controller] 设置侧栏配置时出错:', error);
+         // Handle specific validation errors from the service
+         if (error.message.includes('无效的面板名称') || error.message.includes('无效的侧栏配置格式')) {
+              res.status(400).json({ message: `设置侧栏配置失败: ${error.message}` });
+         } else {
+              res.status(500).json({ message: '设置侧栏配置失败', error: error.message });
+         }
+     }
+ } // <-- No comma after the last method
+
+}; // <-- End of settingsController object
diff --git a/packages/backend/src/settings/settings.routes.ts b/packages/backend/src/settings/settings.routes.ts
index 48a0b49..4872308 100644
--- a/packages/backend/src/settings/settings.routes.ts
+++ b/packages/backend/src/settings/settings.routes.ts
@@ -43,4 +43,11 @@ router.get('/auto-copy-on-select', settingsController.getAutoCopyOnSelect);
 // PUT /api/v1/settings/auto-copy-on-select - 更新设置
 router.put('/auto-copy-on-select', settingsController.setAutoCopyOnSelect);
 
+// +++ 新增：侧栏配置路由 +++
+// GET /api/v1/settings/sidebar - 获取侧栏配置
+router.get('/sidebar', settingsController.getSidebarConfig);
+// PUT /api/v1/settings/sidebar - 更新侧栏配置
+router.put('/sidebar', settingsController.setSidebarConfig);
+
+
 export default router;
diff --git a/packages/backend/src/types/appearance.types.ts b/packages/backend/src/types/appearance.types.ts
index e71a38f..7b866f3 100644
--- a/packages/backend/src/types/appearance.types.ts
+++ b/packages/backend/src/types/appearance.types.ts
@@ -1,5 +1,8 @@
 import type { ITheme } from 'xterm';
 
+// 定义所有可用面板的名称 (后端独立定义)
+export type PaneName = 'connections' | 'terminal' | 'commandBar' | 'fileManager' | 'editor' | 'statusMonitor' | 'commandHistory' | 'quickCommands' | 'dockerManager';
+
 /**
  * 外观设置数据结构
  */
diff --git a/packages/backend/src/types/settings.types.ts b/packages/backend/src/types/settings.types.ts
new file mode 100644
index 0000000..ce76996
--- /dev/null
+++ b/packages/backend/src/types/settings.types.ts
@@ -0,0 +1,19 @@
+// packages/backend/src/types/settings.types.ts
+
+// Define PaneName here as it's logically related to layout/sidebar settings
+export type PaneName = 'connections' | 'terminal' | 'commandBar' | 'fileManager' | 'editor' | 'statusMonitor' | 'commandHistory' | 'quickCommands' | 'dockerManager';
+
+/**
+ * 侧栏配置数据结构 (Managed by Settings Repository/Service)
+ */
+export interface SidebarConfig {
+    left: PaneName[];
+    right: PaneName[];
+}
+
+/**
+ * 用于更新侧栏配置的 DTO
+ */
+export interface UpdateSidebarConfigDto extends SidebarConfig {} // Simple alias for now, can add validation later
+
+// You can add other settings-related types here if needed
\ No newline at end of file
diff --git a/packages/frontend/src/components/LayoutConfigurator.vue b/packages/frontend/src/components/LayoutConfigurator.vue
index 85b41ac..10f6e0a 100644
--- a/packages/frontend/src/components/LayoutConfigurator.vue
+++ b/packages/frontend/src/components/LayoutConfigurator.vue
@@ -1,9 +1,9 @@
 <script setup lang="ts">
-import { ref, computed, watch, onMounted, onUnmounted, type Ref, reactive } from 'vue'; // 导入 reactive
+import { ref, computed, watch, type Ref } from 'vue'; // Removed reactive as it wasn't used after style removal
 import { useI18n } from 'vue-i18n';
 import { useLayoutStore, type LayoutNode, type PaneName } from '../stores/layout.store';
 import draggable from 'vuedraggable';
-import LayoutNodeEditor from './LayoutNodeEditor.vue'; // *** 导入节点编辑器 ***
+import LayoutNodeEditor from './LayoutNodeEditor.vue';
 
 // --- Props ---
 const props = defineProps({
@@ -21,67 +21,69 @@ const { t } = useI18n();
 const layoutStore = useLayoutStore();
 
 // --- State ---
-// 创建布局树的本地副本，以便在不直接修改 store 的情况下进行编辑
 const localLayoutTree: Ref<LayoutNode | null> = ref(null);
-// 标记是否有更改未保存
 const hasChanges = ref(false);
+const localSidebarPanes: Ref<{ left: PaneName[], right: PaneName[] }> = ref({ left: [], right: [] });
 
 // --- Dialog State ---
-const dialogRef = ref<HTMLElement | null>(null); // 对话框元素的引用
-// 移除 initialDialogState, width, height 从 dialogStyle
-// dialogStyle 现在不再需要，因为定位由 overlay flex 处理，尺寸由 CSS 处理
-// const dialogStyle = reactive({
-//   top: '50%',
-//   left: '50%',
-//   transform: 'translate(-50%, -50%)', // 初始居中
-//   position: 'absolute' as 'absolute', // 显式设置定位
-// });
-// 移除 Resizing 相关的状态
-// const isResizing = ref(false);
-// const resizeHandle = ref<string | null>(null);
-// const startDragPos = { x: 0, y: 0 };
-// const startDialogRect = { width: 0, height: 0, top: 0, left: 0 };
-// const minDialogSize = { width: 400, height: 300 }; // 移至 CSS
+const dialogRef = ref<HTMLElement | null>(null);
 
 // --- Watchers ---
-// 当弹窗可见时，从 store 加载当前布局并计算初始位置
 watch(() => props.isVisible, (newValue) => {
   if (newValue) {
-    // 加载布局
+    // Load main layout
     if (layoutStore.layoutTree) {
       localLayoutTree.value = JSON.parse(JSON.stringify(layoutStore.layoutTree));
+    } else {
+      localLayoutTree.value = null; // Ensure it's null if store is null
     }
-    hasChanges.value = false;
-    console.log('[LayoutConfigurator] 弹窗打开，已加载当前布局到本地副本。');
-
-    // 弹窗打开时的逻辑 (不再需要设置样式)
-    console.log('[LayoutConfigurator] Dialog opened.');
-    // 移除 requestAnimationFrame 和尺寸/位置计算逻辑
-
+    // Load sidebar config
+    if (layoutStore.sidebarPanes) {
+      localSidebarPanes.value = JSON.parse(JSON.stringify(layoutStore.sidebarPanes));
+    } else {
+      localSidebarPanes.value = { left: [], right: [] }; // Default
+    }
+    hasChanges.value = false; // Reset changes flag on open
+    console.log('[LayoutConfigurator] Dialog opened, loaded layout and sidebar config.');
   } else {
-    localLayoutTree.value = null; // 关闭时清空本地副本
-    // 移除 isResizing 和事件监听器移除 (因为 resizing 功能已移除)
-    // isResizing.value = false;
-    // window.removeEventListener('mousemove', handleMouseMove);
-    // window.removeEventListener('mouseup', handleMouseUp);
+    localLayoutTree.value = null;
+    localSidebarPanes.value = { left: [], right: [] };
+    console.log('[LayoutConfigurator] Dialog closed.');
   }
-}, /*{ immediate: true }*/); // 移除 immediate: true 解决初始化顺序问题
+});
 
-// 监听本地布局树的变化，标记有未保存更改
+// Watch for changes in the main layout tree
 watch(localLayoutTree, (newValue, oldValue) => {
-  // 确保不是初始化加载触发的 watch
-  if (oldValue !== null && props.isVisible) {
-    hasChanges.value = true;
-    console.log('[LayoutConfigurator] 本地布局已更改。');
+  // Check if it's not the initial load and the dialog is visible
+  if (oldValue !== undefined && oldValue !== null && props.isVisible) {
+      // Use stringify for a simple deep comparison
+      if (JSON.stringify(newValue) !== JSON.stringify(oldValue)) {
+          console.log('[LayoutConfigurator] Main layout tree changed.');
+          hasChanges.value = true;
+      }
   }
 }, { deep: true });
 
-// --- Helper Function for Local Tree ---
-// 递归查找本地布局树中所有使用的面板组件名称
-function getLocalUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
+// Watch for changes in the sidebar configuration
+watch(localSidebarPanes, (newValue, oldValue) => {
+   // Check if it's not the initial load and the dialog is visible
+   if (oldValue !== undefined && props.isVisible) {
+       const newJson = JSON.stringify(newValue);
+       const oldJson = JSON.stringify(oldValue);
+       console.log('[LayoutConfigurator Watcher] localSidebarPanes changed.');
+       // Use stringify for a simple deep comparison, including order changes
+       if (newJson !== oldJson) {
+            console.log('[LayoutConfigurator Watcher] Sidebar panes changed, setting hasChanges.');
+            hasChanges.value = true;
+       }
+   }
+}, { deep: true });
+
+
+// --- Helper Functions ---
+function getMainLayoutUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
   const usedNames = new Set<PaneName>();
   if (!node) return usedNames;
-
   function traverse(currentNode: LayoutNode) {
     if (currentNode.type === 'pane' && currentNode.component) {
       usedNames.add(currentNode.component);
@@ -89,24 +91,26 @@ function getLocalUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
       currentNode.children.forEach(traverse);
     }
   }
-
   traverse(node);
   return usedNames;
 }
 
+function getAllLocalUsedPaneNames(mainNode: LayoutNode | null, sidebars: { left: PaneName[], right: PaneName[] }): Set<PaneName> {
+  const usedNames = getMainLayoutUsedPaneNames(mainNode);
+  sidebars.left.forEach(pane => usedNames.add(pane));
+  sidebars.right.forEach(pane => usedNames.add(pane));
+  return usedNames;
+}
 
 // --- Computed ---
-// const availablePanes = computed(() => layoutStore.availablePanes); // 旧的，基于 store
-const allPossiblePanes = computed(() => layoutStore.allPossiblePanes); // 获取所有可能的面板
+const allPossiblePanes = computed(() => layoutStore.allPossiblePanes);
 
-// *** 新增：计算当前配置器预览中可用的面板 ***
 const configuratorAvailablePanes = computed(() => {
-  const localUsed = getLocalUsedPaneNames(localLayoutTree.value);
+  const localUsed = getAllLocalUsedPaneNames(localLayoutTree.value, localSidebarPanes.value);
   return allPossiblePanes.value.filter(pane => !localUsed.has(pane));
 });
 
-
-// 将 PaneName 映射到用户友好的中文标签
+// Panel Labels for display
 const paneLabels = computed(() => ({
   connections: t('layout.pane.connections', '连接列表'),
   terminal: t('layout.pane.terminal', '终端'),
@@ -116,7 +120,7 @@ const paneLabels = computed(() => ({
   statusMonitor: t('layout.pane.statusMonitor', '状态监视器'),
   commandHistory: t('layout.pane.commandHistory', '命令历史'),
   quickCommands: t('layout.pane.quickCommands', '快捷指令'),
-  dockerManager: t('layout.pane.dockerManager', 'Docker 管理器'), // 添加 dockerManager
+  dockerManager: t('layout.pane.dockerManager', 'Docker 管理器'),
 }));
 
 // --- Methods ---
@@ -131,122 +135,145 @@ const closeDialog = () => {
 };
 
 const saveLayout = () => {
+  // Save main layout
   if (localLayoutTree.value) {
     layoutStore.updateLayoutTree(localLayoutTree.value);
-    hasChanges.value = false;
-    console.log('[LayoutConfigurator] 布局已保存到 Store。');
-    emit('close'); // 保存后关闭
+    console.log('[LayoutConfigurator] Main layout saved to Store.');
   } else {
-    console.error('[LayoutConfigurator] 无法保存，本地布局树为空。');
+    // Handle potentially empty layout based on store logic
+     layoutStore.updateLayoutTree(null); // Assuming null is valid for empty
+    console.log('[LayoutConfigurator] Main layout is empty, saved null to Store.');
   }
+
+  // Save sidebar config
+  const sidebarConfigToSave = JSON.parse(JSON.stringify(localSidebarPanes.value));
+  console.log('[LayoutConfigurator] Preparing to save sidebar config:', sidebarConfigToSave); // Log before sending
+  layoutStore.updateSidebarPanes(sidebarConfigToSave);
+  console.log('[LayoutConfigurator] Sidebar config sent to Store.');
+
+  hasChanges.value = false;
+  emit('close');
 };
 
 const resetToDefault = () => {
-  if (confirm(t('layoutConfigurator.confirmReset', '确定要恢复默认布局吗？当前更改将丢失。'))) {
-    // 调用 store 中获取系统默认布局的方法
+  if (confirm(t('layoutConfigurator.confirmReset', '确定要恢复默认布局和侧栏配置吗？当前更改将丢失。'))) {
+    // Reset main layout
     const defaultLayout = layoutStore.getSystemDefaultLayout();
-    // 直接将获取到的默认布局（深拷贝）赋值给本地副本
     localLayoutTree.value = JSON.parse(JSON.stringify(defaultLayout));
-    hasChanges.value = true; // 标记为有更改，因为是重置操作
-    console.log('[LayoutConfigurator] 已重置为系统默认布局。');
+
+    // Reset sidebar config (assuming store provides a default or empty)
+    const defaultSidebarPanes = layoutStore.getSystemDefaultSidebarPanes(); // Get default from store
+    localSidebarPanes.value = JSON.parse(JSON.stringify(defaultSidebarPanes));
+    console.log('[LayoutConfigurator] Reset to default layout and sidebar panes.');
+
+    hasChanges.value = true; // Mark as changed after reset
   }
 };
 
-// --- Resizing Methods (Removed) ---
-// Resizing functionality is removed to allow content-based sizing.
-
-// --- Drag & Drop Methods (for panes, unchanged) ---
-// 克隆函数：当从可用列表拖拽时，创建新的 LayoutNode 对象
+// Clone function for dragging available panes
 const clonePane = (paneName: PaneName): LayoutNode => {
-  console.log(`[LayoutConfigurator] 克隆面板: ${paneName}`);
+  console.log(`[LayoutConfigurator] Cloning pane: ${paneName}`);
   return {
-    id: layoutStore.generateId(), // 使用 store 中的函数生成新 ID
+    id: layoutStore.generateId(),
     type: 'pane',
     component: paneName,
-    size: 50, // 默认大小，可以后续调整
+    size: 50, // Default size, can be adjusted later
   };
 };
 
-// 移除旧的 handleDragStart
-// const handleDragStart = (event: DragEvent, paneName: PaneName) => { ... }
-
-// 移除旧的预览区域 drop/dragover 处理，由 LayoutNodeEditor 内部处理
-// const handleDropOnPreview = (event: DragEvent) => { ... };
-// const handleDragOverPreview = (event: DragEvent) => { ... };
-
-// *** 新增：处理来自 LayoutNodeEditor 的更新事件 ***
+// Handle updates from LayoutNodeEditor (for main layout)
 const handleNodeUpdate = (updatedNode: LayoutNode) => {
-  // 因为 LayoutNodeEditor 是直接操作 localLayoutTree 的副本，
-  // 理论上 v-model 绑定应该能处理更新。
-  // 但为了明确和处理可能的深层更新问题，我们直接替换根节点。
-  // 注意：这假设 LayoutNodeEditor 只会 emit 根节点的更新事件，
-  // 或者我们需要一个更复杂的查找和替换逻辑。
-  // 简单的做法是，只要有更新，就认为整个 localLayoutTree 可能变了。
-  // （vuedraggable 的 v-model 应该能处理大部分情况）
-  // 暂时只打印日志，依赖 v-model 的更新
-  console.log('[LayoutConfigurator] Received node update:', updatedNode);
-  // 如果 v-model 更新不完全，可能需要手动更新：
-  localLayoutTree.value = updatedNode; // 强制更新整个树
+  console.log('[LayoutConfigurator] Received node update from editor:', updatedNode);
+  // Assuming the update is for the root node for simplicity
+  // v-model on LayoutNodeEditor might handle this, but explicit update is safer
+  localLayoutTree.value = updatedNode;
+  // No need to set hasChanges here, the watcher on localLayoutTree handles it
 };
 
-// *** 新增：处理来自 LayoutNodeEditor 的移除事件 ***
-// 递归查找并移除指定索引的节点
+// Handle remove requests from LayoutNodeEditor (for main layout)
 function findAndRemoveNode(node: LayoutNode | null, parentNodeId: string | undefined, nodeIndex: number): LayoutNode | null {
   if (!node) return null;
-
-  // 如果当前节点是目标节点的父节点
   if (node.id === parentNodeId && node.type === 'container' && node.children && node.children[nodeIndex]) {
     const updatedChildren = [...node.children];
     updatedChildren.splice(nodeIndex, 1);
-     console.log(`[LayoutConfigurator] Removed node at index ${nodeIndex} from parent ${parentNodeId}`);
-    // 如果移除后容器为空，可以选择移除容器自身，这里暂时保留空容器
+    console.log(`[LayoutConfigurator] Removed node at index ${nodeIndex} from parent ${parentNodeId}`);
     return { ...node, children: updatedChildren };
   }
-
-  // 递归查找子节点
   if (node.type === 'container' && node.children) {
     const updatedChildren = node.children.map(child => findAndRemoveNode(child, parentNodeId, nodeIndex));
-     // 检查是否有子节点被更新（即目标节点在更深层被找到并移除）
-     if (updatedChildren.some((child, index) => child !== node.children![index])) {
-       return { ...node, children: updatedChildren.filter(Boolean) as LayoutNode[] };
-     }
+    if (updatedChildren.some((child, index) => child !== node.children![index])) {
+      return { ...node, children: updatedChildren.filter(Boolean) as LayoutNode[] };
+    }
   }
-
-  return node; // 未找到或未修改，返回原节点
+  return node;
 }
 
 const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex: number }) => {
   console.log('[LayoutConfigurator] Received node remove request:', payload);
   if (payload.parentNodeId === undefined && payload.nodeIndex === 0) {
-     // 尝试移除根节点，不允许或清空布局
      if (confirm('确定要清空整个布局吗？')) {
-       localLayoutTree.value = null; // 或者设置为空容器
+       localLayoutTree.value = null;
+       // No need to set hasChanges here, the watcher on localLayoutTree handles it
      }
   } else if (payload.parentNodeId) {
      localLayoutTree.value = findAndRemoveNode(localLayoutTree.value, payload.parentNodeId, payload.nodeIndex);
+     // No need to set hasChanges here, the watcher on localLayoutTree handles it
   } else {
      console.warn('[LayoutConfigurator] Invalid remove payload:', payload);
   }
 };
 
+// Remove pane from sidebar list
+const removeSidebarPane = (side: 'left' | 'right', index: number) => {
+    localSidebarPanes.value[side].splice(index, 1);
+    console.log(`[LayoutConfigurator] Removed pane from ${side} sidebar at index ${index}.`);
+    // Explicitly set hasChanges flag
+    hasChanges.value = true;
+};
+
+// Handler for vuedraggable end event to ensure changes flag is set and handle added items
+const onDraggableChange = (event: any, side: 'left' | 'right') => { // Add side parameter
+    console.log(`[LayoutConfigurator] Draggable change event detected on ${side} sidebar:`, event);
+
+    // Check if an element was added to the sidebar list
+    if (event.added) {
+        const addedElement = event.added.element;
+        const targetList = localSidebarPanes.value[side]; // Use the side parameter directly
+        const addedIndex = event.added.newIndex;
+
+        // Check if the added element is a LayoutNode object (dragged from available panes)
+        if (targetList && typeof addedElement === 'object' && addedElement !== null && addedElement.type === 'pane' && typeof addedElement.component === 'string') {
+            // Replace the added LayoutNode object with its component name (PaneName)
+            targetList.splice(addedIndex, 1, addedElement.component);
+            console.log(`[LayoutConfigurator] Replaced added LayoutNode at index ${addedIndex} on ${side} sidebar with PaneName: ${addedElement.component}`);
+        } else {
+             console.log(`[LayoutConfigurator] Added event detected on ${side} sidebar, but element was not a LayoutNode:`, addedElement);
+        }
+    } else if (event.moved || event.removed) {
+         console.log(`[LayoutConfigurator] Item moved or removed within/from ${side} sidebar.`);
+    }
+
+    // Ensure changes flag is set for any modification (add, remove, move)
+    hasChanges.value = true;
+};
 
 </script>
 
 <template>
   <div v-if="isVisible" class="layout-configurator-overlay" @click.self="closeDialog">
-    <!-- 移除 :style 绑定，尺寸和定位由 CSS 控制 -->
     <div ref="dialogRef" class="layout-configurator-dialog">
-      <!-- Resize Handles Removed -->
 
       <header class="dialog-header">
         <h2>{{ t('layoutConfigurator.title', '配置工作区布局') }}</h2>
         <button class="close-button" @click="closeDialog" :title="t('common.close', '关闭')">&times;</button>
       </header>
 
-      <main class="dialog-content">
+      <!-- Grid Layout -->
+      <main class="dialog-content-grid">
+
+        <!-- Available Panes -->
         <section class="available-panes-section">
           <h3>{{ t('layoutConfigurator.availablePanes', '可用面板') }}</h3>
-          <!-- *** 使用 draggable 包裹列表 *** -->
           <draggable
             :list="configuratorAvailablePanes"
             tag="ul"
@@ -256,29 +283,24 @@ const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex
             :sort="false"
             :clone="clonePane"
           >
-            <template #item="{ element }: { element: PaneName }"> 
-              <li
-                class="available-pane-item"
-              >
-                <i class="fas fa-grip-vertical drag-handle"></i> 
-                {{ paneLabels[element] || element }} 
+            <template #item="{ element }: { element: PaneName }">
+              <li class="available-pane-item">
+                <i class="fas fa-grip-vertical drag-handle"></i>
+                {{ paneLabels[element] || element }}
               </li>
             </template>
-
              <template #footer>
-               <li v-if="configuratorAvailablePanes.length === 0" class="no-available-panes"> <!-- *** 使用新的计算属性 *** -->
+               <li v-if="configuratorAvailablePanes.length === 0" class="no-available-panes">
                  {{ t('layoutConfigurator.noAvailablePanes', '所有面板都已在布局中') }}
                </li>
              </template>
           </draggable>
         </section>
 
-        <section
-          class="layout-preview-section"
-        >
-          <h3>{{ t('layoutConfigurator.layoutPreview', '布局预览（拖拽到此处）') }}</h3>
-          <div class="preview-area">
-            <!-- *** 使用 LayoutNodeEditor 渲染预览 *** -->
+        <!-- Main Layout Preview -->
+        <section class="layout-preview-section">
+          <h3>{{ t('layoutConfigurator.layoutPreview', '主布局预览（拖拽到此处）') }}</h3>
+          <div class="preview-area main-layout-area">
             <LayoutNodeEditor
               v-if="localLayoutTree"
               :node="localLayoutTree"
@@ -287,8 +309,9 @@ const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex
               :pane-labels="paneLabels"
               @update:node="handleNodeUpdate"
               @removeNode="handleNodeRemove"
+              :group="'layout-items'"
             />
-            <p v-else style="text-align: center; color: #aaa; margin-top: 50px;">
+            <p v-else class="empty-placeholder">
               {{ t('layoutConfigurator.emptyLayout', '布局为空，请从左侧拖拽面板或添加容器。') }}
             </p>
           </div>
@@ -296,9 +319,68 @@ const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex
              <button @click="resetToDefault" class="button-secondary">
                {{ t('layoutConfigurator.resetDefault', '恢复默认') }}
              </button>
-             
            </div>
         </section>
+
+        <!-- Sidebar Configuration Container -->
+        <div class="sidebar-container">
+            <!-- Left Sidebar Config -->
+            <section class="sidebar-config-section left-sidebar-section">
+                <h3>{{ t('layoutConfigurator.leftSidebar', '左侧栏面板') }}</h3>
+                <draggable
+                    :list="localSidebarPanes.left"
+                    tag="ul"
+                    class="sidebar-panes-list"
+                    :item-key="(element: PaneName) => `left-${element}`"
+                    group="layout-items"
+                    :sort="true"
+                    @change="(event) => onDraggableChange(event, 'left')"
+                >
+                    <template #item="{ element, index }: { element: PaneName, index: number }">
+                        <li class="sidebar-pane-item">
+                            <i class="fas fa-grip-vertical drag-handle"></i>
+                            <!-- Correctly display translated label -->
+                            <span>{{ paneLabels[element] || element }}</span>
+                            <button @click="removeSidebarPane('left', index)" class="remove-sidebar-btn" :title="t('common.remove', '移除')">&times;</button>
+                        </li>
+                    </template>
+                    <template #footer>
+                        <li v-if="localSidebarPanes.left.length === 0" class="empty-placeholder sidebar-empty">
+                            {{ t('layoutConfigurator.dropHere', '从可用面板拖拽到此处') }}
+                        </li>
+                    </template>
+                </draggable>
+            </section>
+
+            <!-- Right Sidebar Config -->
+            <section class="sidebar-config-section right-sidebar-section">
+                <h3>{{ t('layoutConfigurator.rightSidebar', '右侧栏面板') }}</h3>
+                 <draggable
+                    :list="localSidebarPanes.right"
+                    tag="ul"
+                    class="sidebar-panes-list"
+                    :item-key="(element: PaneName) => `right-${element}`"
+                    group="layout-items"
+                    :sort="true"
+                    @change="(event) => onDraggableChange(event, 'right')" 
+                >
+                    <template #item="{ element, index }: { element: PaneName, index: number }">
+                         <li class="sidebar-pane-item">
+                            <i class="fas fa-grip-vertical drag-handle"></i>
+                            <!-- Correctly display translated label -->
+                            <span>{{ paneLabels[element] || element }}</span>
+                            <button @click="removeSidebarPane('right', index)" class="remove-sidebar-btn" :title="t('common.remove', '移除')">&times;</button>
+                        </li>
+                    </template>
+                     <template #footer>
+                        <li v-if="localSidebarPanes.right.length === 0" class="empty-placeholder sidebar-empty">
+                             {{ t('layoutConfigurator.dropHere', '从可用面板拖拽到此处') }}
+                        </li>
+                    </template>
+                </draggable>
+            </section>
+        </div>
+
       </main>
 
       <footer class="dialog-footer">
@@ -320,39 +402,29 @@ const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex
   height: 100%;
   background-color: rgba(0, 0, 0, 0.6);
   display: flex;
-  /* 使用 Flexbox 居中 */
-  display: flex;
   justify-content: center;
   align-items: center;
   z-index: 1000;
-  /* 移除 pointer-events: none; */
 }
 
 .layout-configurator-dialog {
   background-color: #fff;
   border-radius: 8px;
   box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
-  /* 让宽度和高度自适应内容 */
-  width: auto; /* 或移除 */
-  height: auto; /* 或移除 */
-  /* 添加最大/最小尺寸限制 */
-  min-width: 500px; /* 根据需要调整 */
-  min-height: 400px; /* 根据需要调整 */
-  max-width: 90vw; /* 视口宽度的90% */
-  max-height: 90vh; /* 视口高度的90% */
+  width: auto;
+  height: auto;
+  min-width: 800px; /* Adjusted min-width */
+  min-height: 600px; /* Adjusted min-height */
+  max-width: 95vw;
+  max-height: 90vh;
   display: flex;
   flex-direction: column;
-  /* overflow: hidden; */ /* 改为 auto 或 visible 以允许内容撑开 */
-  overflow: auto; /* 如果内容可能超出 max-height/max-width */
-  position: relative; /* 改为 relative，因为 overlay flex 负责居中 */
-  /* 移除 top, left, transform, position: absolute */
-  /* 允许 dialog 接收点击事件 */
+  overflow: auto;
+  position: relative;
   pointer-events: auto;
-  cursor: default; /* 保持默认光标 */
+  cursor: default;
 }
 
-/* 移除 body.resizing 样式 */
-
 .dialog-header {
   display: flex;
   justify-content: space-between;
@@ -381,23 +453,51 @@ const handleNodeRemove = (payload: { parentNodeId: string | undefined; nodeIndex
   color: #333;
 }
 
-.dialog-content {
+/* Grid Layout for Dialog Content */
+.dialog-content-grid {
   flex-grow: 1;
   padding: 1.5rem;
-  overflow-y: auto; /* 允许内容区滚动 */
-  display: flex; /* 左右布局 */
+  overflow-y: auto;
+  display: grid;
+  grid-template-columns: 220px 1fr;
+  grid-template-rows: auto 1fr;
+  grid-template-areas:
+    "available main"
+    "available sidebars";
   gap: 1.5rem;
+  min-height: 450px;
 }
 
 .available-panes-section {
-  flex: 1; /* 占据一部分空间 */
-  min-width: 200px;
+  grid-area: available;
+  display: flex;
+  flex-direction: column;
+  overflow-y: auto;
   border-right: 1px solid #eee;
   padding-right: 1.5rem;
+  min-width: 200px; /* Ensure minimum width */
 }
 
 .layout-preview-section {
-  flex: 2; /* 占据更多空间 */
+  grid-area: main;
+  display: flex;
+  flex-direction: column;
+  min-width: 350px;
+  min-height: 250px;
+}
+
+.sidebar-container {
+   grid-area: sidebars;
+   display: grid;
+   grid-template-columns: 1fr 1fr;
+   gap: 1.5rem;
+   border-top: 1px solid #eee;
+   padding-top: 1rem;
+   margin-top: 1rem;
+   min-height: 150px;
+}
+
+.sidebar-config-section {
   display: flex;
   flex-direction: column;
 }
@@ -414,6 +514,7 @@ h3 {
   list-style: none;
   padding: 0;
   margin: 0;
+  flex-grow: 1; /* Allow list to take available space */
 }
 
 .available-pane-item {
@@ -450,18 +551,15 @@ h3 {
   padding: 0.5rem 0;
 }
 
-.preview-area {
+.preview-area.main-layout-area {
   flex-grow: 1;
   border: 2px dashed #ced4da;
   border-radius: 4px;
   padding: 1rem;
   background-color: #f8f9fa;
-  min-height: 300px; /* 保证预览区有一定高度 */
-  display: flex; /* 用于内部占位符居中 */
+  display: flex;
   flex-direction: column;
-  /* justify-content: center; */ /* 移除，让内容从顶部开始 */
-  /* align-items: center; */ /* 移除 */
-  overflow: auto; /* 如果预览内容复杂，允许滚动 */
+  overflow: auto;
 }
 
 .preview-actions {
@@ -479,7 +577,7 @@ h3 {
   background-color: #f8f9fa;
 }
 
-/* 通用按钮样式 */
+/* Button Styles */
 .button-primary,
 .button-secondary {
   padding: 0.5rem 1rem;
@@ -512,7 +610,86 @@ h3 {
   background-color: #dee2e6;
 }
 
+/* Sidebar List Styles */
+.sidebar-panes-list {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+    min-height: 120px;
+    background-color: #f8f9fa;
+    border: 1px dashed #ced4da;
+    border-radius: 4px;
+    padding: 0.5rem;
+    flex-grow: 1;
+    overflow-y: auto;
+}
 
-/* --- Resize Handle Styles (Removed) --- */
+.sidebar-pane-item {
+    padding: 0.5rem 0.8rem;
+    margin-bottom: 0.5rem;
+    background-color: #e9ecef;
+    border: 1px solid #dee2e6;
+    border-radius: 4px;
+    cursor: grab;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    transition: background-color 0.2s ease;
+}
+.sidebar-pane-item:hover {
+    background-color: #d8dde2;
+}
+.sidebar-pane-item:active {
+    cursor: grabbing;
+    background-color: #ced4da;
+}
+
+.sidebar-pane-item .drag-handle {
+    margin-right: 0.5rem;
+    color: #6c757d;
+    cursor: grab;
+}
+.sidebar-pane-item:active .drag-handle {
+    cursor: grabbing;
+}
+/* Ensure text span takes available space */
+.sidebar-pane-item span {
+    flex-grow: 1; /* Allow text to take space */
+    margin-right: 0.5rem; /* Space before remove button */
+    overflow: hidden; /* Prevent long text overflow */
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+
+.remove-sidebar-btn {
+    background: none;
+    border: none;
+    color: #adb5bd;
+    font-size: 1.2rem;
+    cursor: pointer;
+    padding: 0 0.3rem;
+    line-height: 1;
+    flex-shrink: 0; /* Prevent button from shrinking */
+}
+.remove-sidebar-btn:hover {
+    color: #dc3545; /* Red on hover */
+}
+
+.empty-placeholder {
+    text-align: center;
+    color: #aaa;
+    padding: 2rem 1rem;
+    font-style: italic;
+    font-size: 0.9em;
+    width: 100%;
+}
+.sidebar-empty {
+    padding: 1rem;
+    min-height: 50px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
 
 </style>
diff --git a/packages/frontend/src/components/LayoutRenderer.vue b/packages/frontend/src/components/LayoutRenderer.vue
index 2351410..08650db 100644
--- a/packages/frontend/src/components/LayoutRenderer.vue
+++ b/packages/frontend/src/components/LayoutRenderer.vue
@@ -1,12 +1,13 @@
 <script setup lang="ts">
-import { computed, defineAsyncComponent, type PropType, type Component } from 'vue';
+import { computed, defineAsyncComponent, type PropType, type Component, ref, watch } from 'vue';
+import { useI18n } from 'vue-i18n'; // <-- Import useI18n
 // 添加依赖 font-awesome
 import '@fortawesome/fontawesome-free/css/all.min.css';
 import { Splitpanes, Pane } from 'splitpanes';
 import { useLayoutStore, type LayoutNode, type PaneName } from '../stores/layout.store';
 import { useSessionStore } from '../stores/session.store';
 import { storeToRefs } from 'pinia';
-import { defineEmits } from 'vue'; // *** 新增：导入 defineEmits ***
+import { defineEmits } from 'vue';
 
 // --- Props ---
 const props = defineProps({
@@ -14,6 +15,11 @@ const props = defineProps({
     type: Object as PropType<LayoutNode>,
     required: true,
   },
+  // 新增：标识是否为顶层渲染器
+  isRootRenderer: {
+    type: Boolean,
+    default: false,
+  },
   // 传递必要的上下文数据，避免在递归中重复获取
   activeSessionId: {
     type: String as PropType<string | null>,
@@ -59,7 +65,13 @@ const emit = defineEmits({
 // --- Setup ---
 const layoutStore = useLayoutStore();
 const sessionStore = useSessionStore();
+const { t } = useI18n(); // <-- Get translation function
 const { activeSession } = storeToRefs(sessionStore);
+const { sidebarPanes } = storeToRefs(layoutStore);
+
+// --- Sidebar State ---
+const activeLeftSidebarPane = ref<PaneName | null>(null);
+const activeRightSidebarPane = ref<PaneName | null>(null);
 
 // --- Component Mapping ---
 // 使用 defineAsyncComponent 优化加载，并映射 PaneName 到实际组件
@@ -76,18 +88,40 @@ const componentMap: Record<PaneName, Component> = {
 };
 
 // --- Computed ---
-// 获取当前节点对应的组件实例
-const currentComponent = computed(() => {
+// 获取当前节点对应的组件实例 (用于主布局)
+const currentMainComponent = computed(() => {
   if (props.layoutNode.type === 'pane' && props.layoutNode.component) {
     return componentMap[props.layoutNode.component] || null;
   }
   return null;
 });
 
-// 为特定组件计算需要传递的 Props
+// 获取当前激活的左侧侧栏组件实例
+const currentLeftSidebarComponent = computed(() => {
+  return activeLeftSidebarPane.value ? componentMap[activeLeftSidebarPane.value] : null;
+});
+
+// 获取当前激活的右侧侧栏组件实例
+const currentRightSidebarComponent = computed(() => {
+  return activeRightSidebarPane.value ? componentMap[activeRightSidebarPane.value] : null;
+});
+
+// 面板标签 (Similar to LayoutConfigurator)
+const paneLabels = computed(() => ({
+  connections: t('layout.pane.connections', '连接列表'),
+  terminal: t('layout.pane.terminal', '终端'),
+  commandBar: t('layout.pane.commandBar', '命令栏'),
+  fileManager: t('layout.pane.fileManager', '文件管理器'),
+  editor: t('layout.pane.editor', '编辑器'),
+  statusMonitor: t('layout.pane.statusMonitor', '状态监视器'),
+  commandHistory: t('layout.pane.commandHistory', '命令历史'),
+  quickCommands: t('layout.pane.quickCommands', '快捷指令'),
+  dockerManager: t('layout.pane.dockerManager', 'Docker 管理器'),
+}));
+
+
+// 为特定组件计算需要传递的 Props (主布局)
 // 注意：这是一个简化示例，实际可能需要更复杂的逻辑来传递正确的 props
-// 例如，Terminal, FileManager, StatusMonitor 需要当前 activeSession 的数据
-// Editor 需要根据共享模式决定数据来源
 const componentProps = computed(() => {
   const componentName = props.layoutNode.component;
   const currentActiveSession = activeSession.value; // 获取当前活动会话
@@ -193,9 +227,32 @@ const componentProps = computed(() => {
  }
 });
 
+// 为侧栏组件计算 Props (可能需要简化或根据组件调整)
+const sidebarComponentProps = computed(() => (paneName: PaneName | null) => {
+    if (!paneName) return {};
+    // 侧栏组件通常不需要像主布局那样复杂的事件转发和 session 依赖
+    // 这里可以返回一个通用的 props 对象，或者根据 paneName 返回特定 props
+    // 示例：只传递 class
+    return { class: 'sidebar-pane-content' };
+    // 如果侧栏组件也需要 session 信息或事件：
+    /*
+    switch (paneName) {
+        case 'connections':
+             return {
+                 class: 'sidebar-pane-content',
+                 onConnectRequest: (id: number) => emit('connect-request', id),
+                 // ... 其他 connections 需要的 props
+             };
+        // ... 其他 case
+        default:
+            return { class: 'sidebar-pane-content' };
+    }
+    */
+});
+
+
 // --- Methods ---
-// 处理 Splitpanes 大小调整事件，更新 layoutStore 中的节点 size
-// @resized 事件参数是一个包含 panes 数组的对象
+// 处理 Splitpanes 大小调整事件
 const handlePaneResize = (eventData: { panes: Array<{ size: number; [key: string]: any }> }) => {
   console.log('Splitpanes resized event object:', eventData); // 打印整个事件对象
   const paneSizes = eventData.panes; // 从事件对象中提取 panes 数组
@@ -219,151 +276,319 @@ const handlePaneResize = (eventData: { panes: Array<{ size: number; [key: string
   }
 };
 
+// 打开/切换侧栏面板
+const toggleSidebarPane = (side: 'left' | 'right', paneName: PaneName) => {
+  if (side === 'left') {
+    activeLeftSidebarPane.value = activeLeftSidebarPane.value === paneName ? null : paneName;
+    if (activeLeftSidebarPane.value) activeRightSidebarPane.value = null; // Close other side
+  } else {
+    activeRightSidebarPane.value = activeRightSidebarPane.value === paneName ? null : paneName;
+    if (activeRightSidebarPane.value) activeLeftSidebarPane.value = null; // Close other side
+  }
+};
+
+// 关闭所有侧栏
+const closeSidebars = () => {
+  activeLeftSidebarPane.value = null;
+  activeRightSidebarPane.value = null;
+};
+
+// 监听 activeSessionId 的变化，如果会话切换，则关闭侧栏 (可选行为)
+watch(() => props.activeSessionId, () => {
+    // closeSidebars(); // 取消注释以在切换会话时关闭侧栏
+});
+
+// --- Debug Watcher for sidebarPanes from store ---
+watch(sidebarPanes, (newVal) => {
+  console.log('[LayoutRenderer] Received updated sidebarPanes from store:', JSON.parse(JSON.stringify(newVal)));
+}, { deep: true, immediate: true }); // Immediate to log initial value
+
+// --- Icon Helper ---
+const getIconClasses = (paneName: PaneName): string[] => {
+  switch (paneName) {
+    case 'connections': return ['fas', 'fa-network-wired'];
+    case 'fileManager': return ['fas', 'fa-folder-open'];
+    case 'commandHistory': return ['fas', 'fa-history'];
+    case 'quickCommands': return ['fas', 'fa-bolt'];
+    case 'dockerManager': return ['fab', 'fa-docker']; // Use 'fab' for Docker
+    case 'editor': return ['fas', 'fa-file-alt'];
+    case 'statusMonitor': return ['fas', 'fa-tachometer-alt'];
+    // Add other specific icons here if needed
+    default: return ['fas', 'fa-question-circle']; // Default icon
+  }
+};
+
 </script>
 
 <template>
-  <div class="layout-renderer" :data-node-id="layoutNode.id">
-    <!-- 如果是容器节点 -->
-    <template v-if="layoutNode.type === 'container' && layoutNode.children && layoutNode.children.length > 0">
-      <splitpanes
-        :horizontal="layoutNode.direction === 'vertical'"
-        class="default-theme"
-        style="height: 100%; width: 100%;"
-        @resized="handlePaneResize"
-      >
-        <pane
-          v-for="childNode in layoutNode.children"
-          :key="childNode.id"
-          :size="childNode.size ?? (100 / layoutNode.children.length)"
-          :min-size="5"
-          class="layout-pane-wrapper"
+  <div class="layout-renderer-wrapper">
+    <!-- Left Sidebar Buttons (Only render if root) -->
+    <div class="sidebar-buttons left-sidebar-buttons" v-if="isRootRenderer && sidebarPanes.left.length > 0">
+        <button
+            v-for="pane in sidebarPanes.left"
+            :key="`left-${pane}`"
+            @click="toggleSidebarPane('left', pane)"
+            :class="{ active: activeLeftSidebarPane === pane }"
+            :title="paneLabels[pane] || pane"
         >
-          <!-- 递归调用自身来渲染子节点，并转发所有必要的事件 -->
-          <LayoutRenderer
-            :layout-node="childNode"
-            :active-session-id="activeSessionId"
-            :editor-tabs="editorTabs"
-            :active-editor-tab-id="activeEditorTabId"
-            @send-command="emit('sendCommand', $event)"
-            @terminal-input="emit('terminalInput', $event)"
-            @terminal-resize="emit('terminalResize', $event)"
-            @terminal-ready="emit('terminal-ready', $event)"
-            @close-editor-tab="emit('closeEditorTab', $event)"
-            @activate-editor-tab="emit('activateEditorTab', $event)"
-            @update-editor-content="emit('updateEditorContent', $event)"
-            @save-editor-tab="emit('saveEditorTab', $event)"
-            @connect-request="emit('connect-request', $event)"
-            @open-new-session="emit('open-new-session', $event)"
-            @request-add-connection="() => { // 添加日志
-                console.log(`[LayoutRenderer ${props.layoutNode.id}] Received recursive 'request-add-connection', emitting upwards.`);
-                emit('request-add-connection');
-            }"
-            @request-edit-connection="emit('request-edit-connection', $event)"
-            @search="emit('search', $event)"
-            @find-next="emit('find-next')"
-            @find-previous="emit('find-previous')"
-            @close-search="emit('close-search')"
-          />
-        </pane>
-      </splitpanes>
-    </template>
+            <!-- Use helper function for icons -->
+            <i :class="getIconClasses(pane)"></i>
+        </button>
+    </div>
 
-    <!-- 如果是面板节点 -->
-    <template v-else-if="layoutNode.type === 'pane'">
-        <!-- Terminal 需要 keep-alive 处理 -->
-        <template v-if="layoutNode.component === 'terminal'">
-            <keep-alive>
-                <component
-                  v-if="activeSession"
-                  :is="currentComponent"
-                  :key="activeSessionId"
-                  v-bind="componentProps"
+    <!-- Main Layout Area -->
+    <div class="main-layout-area">
+        <div class="layout-renderer" :data-node-id="layoutNode.id">
+            <!-- 如果是容器节点 -->
+            <template v-if="layoutNode.type === 'container' && layoutNode.children && layoutNode.children.length > 0">
+            <splitpanes
+                :horizontal="layoutNode.direction === 'vertical'"
+                class="default-theme"
+                style="height: 100%; width: 100%;"
+                @resized="handlePaneResize"
+            >
+                <pane
+                v-for="childNode in layoutNode.children"
+                :key="childNode.id"
+                :size="childNode.size ?? (100 / layoutNode.children.length)"
+                :min-size="5"
+                class="layout-pane-wrapper"
+                >
+                <!-- 递归调用自身来渲染子节点，并转发所有必要的事件 -->
+                <LayoutRenderer
+                    :layout-node="childNode"
+                    :is-root-renderer="false"
+                    :active-session-id="activeSessionId"
+                    :editor-tabs="editorTabs"
+                    :active-editor-tab-id="activeEditorTabId"
+                    @send-command="emit('sendCommand', $event)"
+                    @terminal-input="emit('terminalInput', $event)"
+                    @terminal-resize="emit('terminalResize', $event)"
+                    @terminal-ready="emit('terminal-ready', $event)"
+                    @close-editor-tab="emit('closeEditorTab', $event)"
+                    @activate-editor-tab="emit('activateEditorTab', $event)"
+                    @update-editor-content="emit('updateEditorContent', $event)"
+                    @save-editor-tab="emit('saveEditorTab', $event)"
+                    @connect-request="emit('connect-request', $event)"
+                    @open-new-session="emit('open-new-session', $event)"
+                    @request-add-connection="() => { // 添加日志
+                        console.log(`[LayoutRenderer ${props.layoutNode.id}] Received recursive 'request-add-connection', emitting upwards.`);
+                        emit('request-add-connection');
+                    }"
+                    @request-edit-connection="emit('request-edit-connection', $event)"
+                    @search="emit('search', $event)"
+                    @find-next="emit('find-next')"
+                    @find-previous="emit('find-previous')"
+                    @close-search="emit('close-search')"
                 />
-            </keep-alive>
-            <div v-if="!activeSession" class="pane-placeholder empty-session">
-              <div class="empty-session-content">
-                <i class="fas fa-terminal-slash"></i>
-                <i class="fas fa-plug"></i>
-                <span>无活动会话</span>
-                <div class="empty-session-tip">请先连接一个会话</div>
-              </div>
-            </div>
-        </template>
-        <!-- FileManager 需要 keep-alive 处理 -->
-        <template v-else-if="layoutNode.component === 'fileManager'">
-            <keep-alive>
-                <component
-                  v-if="activeSession"
-                  :is="currentComponent"
-                  :key="activeSessionId"
-                  v-bind="componentProps"
-                />
-            </keep-alive>
-            <div v-if="!activeSession" class="pane-placeholder empty-session">
-              <div class="empty-session-content">
-                <i class="fas fa-plug"></i>
-                <span>无活动会话</span>
-                <div class="empty-session-tip">请先连接一个会话</div>
-              </div>
-            </div>
-        </template>
-        <!-- StatusMonitor 仅在有活动会话时渲染，并添加 key (无 keep-alive) -->
-        <template v-else-if="layoutNode.component === 'statusMonitor'">
-             <component
-               v-if="activeSession"
-               :is="currentComponent"
-               :key="activeSessionId"
-               v-bind="componentProps"
-             />
-             <div v-else class="pane-placeholder empty-session">
-              <div class="empty-session-content">
-                <i class="fas fa-plug"></i>
-                <span>无活动会话</span>
-                <div class="empty-session-tip">请先连接一个会话</div>
-              </div>
-            </div>
-        </template>
-        <!-- 其他面板正常渲染 (不依赖 activeSession 的) -->
-        <template v-else-if="currentComponent">
-            <!-- 特别处理 connections 组件以添加事件监听器 -->
-            <component
-              v-if="layoutNode.component === 'connections'"
-              :is="currentComponent"
-              v-bind="componentProps"
-              @request-add-connection="() => {
-                  console.log(`[LayoutRenderer ${props.layoutNode.id}] Template received 'request-add-connection', emitting upwards.`);
-                  emit('request-add-connection');
-              }"
-            />
-            <!-- 渲染 CommandInputBar -->
-            <component
-              v-else-if="layoutNode.component === 'commandBar'"
-              :is="currentComponent"
-              v-bind="componentProps"
-            />
-            <!-- 渲染其他组件 -->
-            <component
-              v-else
-              :is="currentComponent"
-              v-bind="componentProps"
-            />
-        </template>
-        <!-- 如果找不到组件 -->
-        <div v-else class="pane-placeholder error">
-            无效面板组件: {{ layoutNode.component || '未指定' }} (ID: {{ layoutNode.id }})
+                </pane>
+            </splitpanes>
+            </template>
+
+            <!-- 如果是面板节点 -->
+            <template v-else-if="layoutNode.type === 'pane'">
+                <!-- Terminal 需要 keep-alive 处理 -->
+                <template v-if="layoutNode.component === 'terminal'">
+                    <keep-alive>
+                        <component
+                          v-if="activeSession"
+                          :is="currentMainComponent"
+                          :key="activeSessionId"
+                          v-bind="componentProps"
+                        />
+                    </keep-alive>
+                    <div v-if="!activeSession" class="pane-placeholder empty-session">
+                      <div class="empty-session-content">
+                        <i class="fas fa-plug"></i>
+                        <span>无活动会话</span>
+                        <div class="empty-session-tip">请先连接一个会话</div>
+                      </div>
+                    </div>
+                </template>
+                <!-- FileManager 需要 keep-alive 处理 -->
+                <template v-else-if="layoutNode.component === 'fileManager'">
+                    <keep-alive>
+                        <component
+                          v-if="activeSession"
+                          :is="currentMainComponent"
+                          :key="activeSessionId"
+                          v-bind="componentProps"
+                        />
+                    </keep-alive>
+                    <div v-if="!activeSession" class="pane-placeholder empty-session">
+                      <div class="empty-session-content">
+                        <i class="fas fa-plug"></i>
+                        <span>无活动会话</span>
+                        <div class="empty-session-tip">请先连接一个会话</div>
+                      </div>
+                    </div>
+                </template>
+                <!-- StatusMonitor 仅在有活动会话时渲染，并添加 key (无 keep-alive) -->
+                <template v-else-if="layoutNode.component === 'statusMonitor'">
+                     <component
+                       v-if="activeSession"
+                       :is="currentMainComponent"
+                       :key="activeSessionId"
+                       v-bind="componentProps"
+                     />
+                     <div v-else class="pane-placeholder empty-session">
+                      <div class="empty-session-content">
+                        <i class="fas fa-plug"></i>
+                        <span>无活动会话</span>
+                        <div class="empty-session-tip">请先连接一个会话</div>
+                      </div>
+                    </div>
+                </template>
+                <!-- 其他面板正常渲染 (不依赖 activeSession 的) -->
+                <template v-else-if="currentMainComponent">
+                    <!-- 特别处理 connections 组件以添加事件监听器 -->
+                    <component
+                      v-if="layoutNode.component === 'connections'"
+                      :is="currentMainComponent"
+                      v-bind="componentProps"
+                      @request-add-connection="() => {
+                          console.log(`[LayoutRenderer ${props.layoutNode.id}] Template received 'request-add-connection', emitting upwards.`);
+                          emit('request-add-connection');
+                      }"
+                    />
+                    <!-- 渲染 CommandInputBar -->
+                    <component
+                      v-else-if="layoutNode.component === 'commandBar'"
+                      :is="currentMainComponent"
+                      v-bind="componentProps"
+                    />
+                    <!-- 渲染其他组件 -->
+                    <component
+                      v-else
+                      :is="currentMainComponent"
+                      v-bind="componentProps"
+                    />
+                </template>
+                <!-- 如果找不到主布局组件 -->
+                <div v-else class="pane-placeholder error">
+                    无效面板组件: {{ layoutNode.component || '未指定' }} (ID: {{ layoutNode.id }})
+                </div>
+            </template>
+
+             <!-- 如果节点类型未知或无效 -->
+             <template v-else>
+               <div class="pane-placeholder error">
+                 无效布局节点 (ID: {{ layoutNode.id }})
+               </div>
+             </template>
         </div>
-    </template>
+    </div>
+
+    <!-- Sidebar Panels Overlay -->
+    <div
+        v-if="activeLeftSidebarPane || activeRightSidebarPane"
+        class="sidebar-overlay"
+        @click="closeSidebars"
+    ></div>
+
+    <!-- Left Sidebar Panel -->
+    <div :class="['sidebar-panel', 'left-sidebar-panel', { active: !!activeLeftSidebarPane }]">
+        <button class="close-sidebar-btn" @click="closeSidebars" title="Close Sidebar">&times;</button>
+        <component
+            v-if="currentLeftSidebarComponent"
+            :is="currentLeftSidebarComponent"
+            :key="`left-panel-${activeLeftSidebarPane}`"
+            v-bind="sidebarComponentProps(activeLeftSidebarPane)"
+        />
+    </div>
+
+    <!-- Right Sidebar Panel -->
+     <div :class="['sidebar-panel', 'right-sidebar-panel', { active: !!activeRightSidebarPane }]">
+        <button class="close-sidebar-btn" @click="closeSidebars" title="Close Sidebar">&times;</button>
+        <component
+            v-if="currentRightSidebarComponent"
+            :is="currentRightSidebarComponent"
+            :key="`right-panel-${activeRightSidebarPane}`"
+            v-bind="sidebarComponentProps(activeRightSidebarPane)"
+        />
+    </div>
+
+     <!-- Right Sidebar Buttons (Only render if root) -->
+    <div class="sidebar-buttons right-sidebar-buttons" v-if="isRootRenderer && sidebarPanes.right.length > 0">
+         <button
+             v-for="pane in sidebarPanes.right"
+            :key="`right-${pane}`"
+            @click="toggleSidebarPane('right', pane)"
+            :class="{ active: activeRightSidebarPane === pane }"
+            :title="paneLabels[pane] || pane"
+        >
+             <!-- Use helper function for icons -->
+             <i :class="getIconClasses(pane)"></i>
+        </button>
+    </div>
 
-     <!-- 如果节点类型未知或无效 -->
-     <template v-else>
-       <div class="pane-placeholder error">
-         无效布局节点 (ID: {{ layoutNode.id }})
-       </div>
-     </template>
   </div>
 </template>
 
 <style scoped>
+.layout-renderer-wrapper {
+  position: relative; /* Needed for absolute positioning of sidebars */
+  display: flex;
+  height: 100%;
+  width: 100%;
+  overflow: hidden;
+}
+
+.sidebar-buttons {
+  display: flex;
+  flex-direction: column;
+  background-color: var(--sidebar-bg-color, #f8f9fa); /* Use theme variable or default */
+  padding: 5px 0;
+  z-index: 10; /* Above main layout but below panels */
+  flex-shrink: 0; /* Prevent buttons from shrinking */
+}
+
+.left-sidebar-buttons {
+  border-right: 1px solid var(--border-color, #dee2e6);
+}
+
+.right-sidebar-buttons {
+  border-left: 1px solid var(--border-color, #dee2e6);
+}
+
+.sidebar-buttons button {
+  background: none;
+  border: none;
+  color: var(--text-color-secondary, #6c757d);
+  padding: 10px 8px;
+  cursor: pointer;
+  font-size: 1.1rem; /* Slightly smaller icons */
+  line-height: 1;
+  transition: background-color 0.2s, color 0.2s;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  width: 40px; /* Fixed width for buttons */
+  height: 40px; /* Fixed height for buttons */
+  margin-bottom: 4px; /* Space between buttons */
+}
+
+.sidebar-buttons button:hover {
+  background-color: var(--hover-bg-color, #e9ecef);
+  color: var(--text-color-primary, #343a40);
+}
+
+.sidebar-buttons button.active {
+  background-color: var(--primary-color, #007bff);
+  color: white;
+}
+.sidebar-buttons button.active:hover {
+   background-color: var(--primary-color-dark, #0056b3); /* Darker primary on hover when active */
+}
+
+
+.main-layout-area {
+  flex-grow: 1;
+  height: 100%;
+  overflow: hidden; /* Prevent main layout from overflowing */
+  position: relative; /* Needed for potential internal absolute elements */
+}
+
 .layout-renderer {
   height: 100%;
   width: 100%;
@@ -447,14 +672,114 @@ const handlePaneResize = (eventData: { panes: Array<{ size: number; [key: string
 }
 
 
-/* Splitpanes 默认主题样式调整 (如果需要覆盖全局样式) */
-/* :deep(.splitpanes.default-theme .splitpanes__splitter) { */
-  /* background-color: #ccc; */
-/* } */
-/* :deep(.splitpanes--vertical > .splitpanes__splitter) { */
-  /* width: 7px; */
-/* } */
-/* :deep(.splitpanes--horizontal > .splitpanes__splitter) { */
-  /* height: 7px; */
-/* } */
+/* Sidebar Panel Styles */
+.sidebar-overlay {
+  position: fixed; /* Use fixed to cover the whole viewport */
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(0, 0, 0, 0.4);
+  z-index: 100; /* Below panel, above main content */
+  opacity: 0;
+  visibility: hidden;
+  transition: opacity 0.3s ease, visibility 0s linear 0.3s;
+}
+/* Show overlay when either panel is active */
+.layout-renderer-wrapper:has(.sidebar-panel.active) .sidebar-overlay {
+  opacity: 1;
+  visibility: visible;
+  transition: opacity 0.3s ease, visibility 0s linear 0s;
+}
+
+
+.sidebar-panel {
+  position: fixed; /* Use fixed for viewport positioning */
+  top: 0; /* Adjust if you have a fixed header */
+  bottom: 0; /* Adjust if you have a fixed footer */
+  width: 350px; /* Adjust width as needed */
+  max-width: 80vw;
+  background-color: var(--app-bg-color, white);
+  /* box-shadow: 0 0 15px rgba(0, 0, 0, 0.2); */ /* <-- 移除阴影以隐藏边缘 */
+  z-index: 110; /* Above overlay */
+  transform: translateX(-100%); /* Start hidden */
+  transition: transform 0.3s ease-in-out;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden; /* Prevent content overflow */
+}
+
+.left-sidebar-panel {
+  left: 0;
+  transform: translateX(-100%);
+  border-right: 1px solid var(--border-color, #dee2e6);
+}
+.left-sidebar-panel.active {
+  transform: translateX(0);
+}
+
+.right-sidebar-panel {
+  right: 0;
+  transform: translateX(100%);
+   border-left: 1px solid var(--border-color, #dee2e6);
+}
+.right-sidebar-panel.active {
+  transform: translateX(0);
+}
+
+.close-sidebar-btn {
+  position: absolute;
+  top: 5px;
+  right: 10px;
+  background: none;
+  border: none;
+  font-size: 1.8rem;
+  color: var(--text-color-secondary, #aaa);
+  cursor: pointer;
+  padding: 0;
+  line-height: 1;
+  z-index: 1; /* Above panel content */
+}
+.close-sidebar-btn:hover {
+  color: var(--text-color-primary, #333);
+}
+
+/* Style for the content inside the sidebar panel */
+:deep(.sidebar-pane-content) {
+  flex-grow: 1;
+  overflow-y: auto; /* Allow scrolling within the panel */
+  padding: 1rem; /* Add some padding */
+  padding-top: 2.5rem; /* Add padding to avoid close button overlap */
+}
+
+</style>
+
+<style> /* Global styles for splitpanes if needed, or scoped with :deep() */
+.splitpanes.default-theme .splitpanes__pane {
+  background-color: var(--app-bg-color); /* Ensure panes match app background */
+}
+.splitpanes.default-theme .splitpanes__splitter {
+  background-color: var(--border-color, #dee2e6);
+  border-left: 1px solid var(--border-color-lighter, #f1f3f5); /* Example lighter border */
+  border-right: 1px solid var(--border-color-darker, #ced4da); /* Example darker border */
+  box-sizing: border-box;
+  transition: background-color 0.2s ease-out;
+}
+.splitpanes.default-theme .splitpanes__splitter:hover {
+  background-color: var(--primary-color-light, #a0cfff); /* Lighter primary on hover */
+}
+.splitpanes.default-theme .splitpanes__splitter::before,
+.splitpanes.default-theme .splitpanes__splitter::after {
+    background-color: var(--text-color-secondary, #6c757d); /* Adjust handle color */
+}
+.splitpanes--vertical > .splitpanes__splitter {
+  width: 6px; /* Adjust width */
+  border-left: 1px solid var(--border-color-darker, #ced4da);
+  border-right: 1px solid var(--border-color-lighter, #f1f3f5);
+}
+.splitpanes--horizontal > .splitpanes__splitter {
+  height: 6px; /* Adjust height */
+   border-top: 1px solid var(--border-color-darker, #ced4da);
+   border-bottom: 1px solid var(--border-color-lighter, #f1f3f5);
+}
 </style>
diff --git a/packages/frontend/src/locales/zh.json b/packages/frontend/src/locales/zh.json
index 1d106f6..f15465d 100644
--- a/packages/frontend/src/locales/zh.json
+++ b/packages/frontend/src/locales/zh.json
@@ -675,12 +675,17 @@
     "remove": "移除"
   },
   "layoutConfigurator": {
-    "title": "布局配置器",
+    "title": "配置工作区布局",
     "availablePanes": "可用面板",
-    "layoutPreview": "布局预览",
-    "resetDefault": "重置为默认布局",
+    "layoutPreview": "主布局预览（拖拽到此处）",
+    "resetDefault": "恢复默认",
     "noAvailablePanes": "所有面板都已在布局中",
-    "emptyLayout": "布局为空，请从左侧拖拽面板或添加容器。"
+    "emptyLayout": "布局为空，请从左侧拖拽面板或添加容器。",
+    "leftSidebar": "左侧栏面板",
+    "rightSidebar": "右侧栏面板",
+    "dropHere": "从可用面板拖拽到此处",
+    "confirmClose": "有未保存的更改，确定要关闭吗？",
+    "confirmReset": "确定要恢复默认布局和侧栏配置吗？当前更改将丢失。"
   },
   "auditLog": {
     "title": "审计日志",
diff --git a/packages/frontend/src/stores/layout.store.ts b/packages/frontend/src/stores/layout.store.ts
index 1140f1c..dc21740 100644
--- a/packages/frontend/src/stores/layout.store.ts
+++ b/packages/frontend/src/stores/layout.store.ts
@@ -18,6 +18,7 @@ export interface LayoutNode {
 
 // 本地存储的 Key
 const LAYOUT_STORAGE_KEY = 'nexus_terminal_layout_config';
+const SIDEBAR_STORAGE_KEY = 'nexus_terminal_sidebar_config'; // 新增侧栏配置 Key
 
 // 生成唯一 ID 的辅助函数
 function generateId(): string {
@@ -67,8 +68,14 @@ const getDefaultLayout = (): LayoutNode => ({
   ],
 });
 
-// 递归查找布局树中所有使用的面板组件名称
-function getUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
+// 定义默认侧栏配置
+const getDefaultSidebarPanes = (): { left: PaneName[], right: PaneName[] } => ({
+  left: [],
+  right: [],
+});
+
+// 递归查找主布局树中使用的面板
+function getMainLayoutUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
   const usedNames = new Set<PaneName>();
   if (!node) return usedNames;
 
@@ -84,12 +91,43 @@ function getUsedPaneNames(node: LayoutNode | null): Set<PaneName> {
   return usedNames;
 }
 
+// 获取所有使用的面板（主布局 + 侧栏）
+function getAllUsedPaneNames(mainNode: LayoutNode | null, sidebars: { left: PaneName[], right: PaneName[] }): Set<PaneName> {
+  const usedNames = getMainLayoutUsedPaneNames(mainNode);
+  sidebars.left.forEach(pane => usedNames.add(pane));
+  sidebars.right.forEach(pane => usedNames.add(pane));
+  return usedNames;
+}
+
+
+// --- Validation Helper ---
+// Checks if a value is a valid PaneName
+function isValidPaneName(value: any, allPanes: PaneName[]): value is PaneName {
+    return typeof value === 'string' && allPanes.includes(value as PaneName);
+}
+
+// Checks if an array contains only unique, valid PaneName strings
+function isValidPaneNameArray(arr: any, allPanes: PaneName[]): arr is PaneName[] {
+    if (!Array.isArray(arr)) return false;
+    const seen = new Set<PaneName>();
+    for (const item of arr) {
+        if (!isValidPaneName(item, allPanes) || seen.has(item)) {
+            return false; // Not a valid PaneName or duplicate found
+        }
+        seen.add(item);
+    }
+    return true; // All items are unique and valid PaneNames
+}
+
+
 // 定义 Store
 export const useLayoutStore = defineStore('layout', () => {
   // --- 状态 ---
-  // 核心状态：存储当前布局树结构
+  // 主布局树结构
   const layoutTree: Ref<LayoutNode | null> = ref(null);
-  // 存储所有理论上可用的面板名称
+  // 侧栏面板配置
+  const sidebarPanes: Ref<{ left: PaneName[], right: PaneName[] }> = ref(getDefaultSidebarPanes());
+  // 所有理论上可用的面板名称
   const allPossiblePanes: Ref<PaneName[]> = ref([
     'connections', 'terminal', 'commandBar', 'fileManager',
     'editor', 'statusMonitor', 'commandHistory', 'quickCommands',
@@ -101,73 +139,154 @@ export const useLayoutStore = defineStore('layout', () => {
   const isHeaderVisible: Ref<boolean> = ref(true); // 默认可见
 
   // --- 计算属性 ---
-  // 计算当前布局中正在使用的面板
-  const usedPanes: ComputedRef<Set<PaneName>> = computed(() => getUsedPaneNames(layoutTree.value));
+  // 计算当前布局和侧栏中正在使用的所有面板
+  const usedPanes: ComputedRef<Set<PaneName>> = computed(() => getAllUsedPaneNames(layoutTree.value, sidebarPanes.value));
 
-  // 计算当前未在布局中使用的面板（可用于配置器中添加）
+  // 计算当前未在布局或侧栏中使用的面板（可用于配置器中添加）
   const availablePanes: ComputedRef<PaneName[]> = computed(() => {
     const used = usedPanes.value;
     return allPossiblePanes.value.filter(pane => !used.has(pane));
   });
 
   // --- Actions ---
-  // 初始化布局：优先尝试从后端加载，然后 localStorage，最后默认布局
+  // 初始化布局和侧栏配置
   async function initializeLayout() {
-    let loadedFromBackend = false;
-    // 1. 尝试从后端加载
+    let layoutLoadedFromBackend = false;
+    let sidebarLoadedFromBackend = false;
+
+    // 1. 尝试从后端加载主布局
     try {
       console.log('[Layout Store] Attempting to load layout from backend...');
       const response = await apiClient.get<LayoutNode | null>('/settings/layout'); // 使用 apiClient
       if (response.data) {
         // TODO: 在这里添加对 response.data 的结构验证，确保它符合 LayoutNode 接口
         layoutTree.value = response.data;
-        loadedFromBackend = true;
-        console.log('[Layout Store] 从后端加载布局成功。');
-        // 可选：如果后端加载成功，可以更新 localStorage
+        layoutLoadedFromBackend = true;
+        console.log('[Layout Store] 主布局从后端加载成功。');
+        // 更新 localStorage
         try {
           localStorage.setItem(LAYOUT_STORAGE_KEY, JSON.stringify(response.data));
         } catch (lsError) {
-          console.error('[Layout Store] 保存后端布局到 localStorage 失败:', lsError);
+          console.error('[Layout Store] 保存后端主布局到 localStorage 失败:', lsError);
         }
       } else {
-        console.log('[Layout Store] 后端未返回布局数据。');
+        console.log('[Layout Store] 后端未返回主布局数据。');
       }
     } catch (error) {
-      console.error('[Layout Store] 从后端加载布局失败:', error);
-      // 加载失败，继续尝试 localStorage
+      console.error('[Layout Store] 从后端加载主布局失败:', error);
     }
 
-    // 2. 如果后端未加载成功，尝试从 localStorage 加载
-    if (!loadedFromBackend) {
-      console.log('[Layout Store] Attempting to load layout from localStorage...');
+    // 2. 尝试从后端加载侧栏配置 (假设 API 端点为 /settings/sidebar)
+    try {
+        console.log('[Layout Store] Attempting to load sidebar config from backend...');
+        const response = await apiClient.get<{ left: any[], right: any[] } | null>('/settings/sidebar'); // Load as any[] first
+        // --- Add Validation ---
+        if (response.data &&
+            isValidPaneNameArray(response.data.left, allPossiblePanes.value) &&
+            isValidPaneNameArray(response.data.right, allPossiblePanes.value))
+        {
+            sidebarPanes.value = response.data as { left: PaneName[], right: PaneName[] }; // Cast after validation
+            sidebarLoadedFromBackend = true;
+            console.log('[Layout Store] 侧栏配置从后端加载成功并通过验证。');
+            // 更新 localStorage
+            try {
+                localStorage.setItem(SIDEBAR_STORAGE_KEY, JSON.stringify(response.data));
+            } catch (lsError) {
+                console.error('[Layout Store] 保存后端侧栏配置到 localStorage 失败:', lsError);
+            }
+        } else { // Handles the case where the 'if' at line 184 failed
+            if (response.data) { // Check if data existed but failed validation
+                 console.log('[Layout Store] 后端返回的侧栏配置数据格式无效或包含无效/重复面板名称。');
+            } else { // No data was returned from the backend
+                 console.log('[Layout Store] 后端未返回侧栏配置数据。');
+            }
+        }
+    } catch (error) {
+        console.error('[Layout Store] 从后端加载侧栏配置失败:', error);
+    }
+
+
+    // 3. 如果主布局后端未加载成功，尝试从 localStorage 加载
+    if (!layoutLoadedFromBackend) {
+      console.log('[Layout Store] Attempting to load main layout from localStorage...');
       try {
         const savedLayout = localStorage.getItem(LAYOUT_STORAGE_KEY);
         if (savedLayout) {
           const parsedLayout = JSON.parse(savedLayout) as LayoutNode;
-          // TODO: 添加验证逻辑确保加载的布局结构有效
+          // TODO: 添加验证逻辑
           layoutTree.value = parsedLayout;
-          console.log('[Layout Store] 从 localStorage 加载布局成功。');
+          console.log('[Layout Store] 主布局从 localStorage 加载成功。');
         } else {
-          // 3. 如果 localStorage 也没有，使用默认布局
+          // 4. 如果 localStorage 也没有，使用默认主布局
           layoutTree.value = getDefaultLayout();
-          console.log('[Layout Store] 未找到保存的布局，使用默认布局。');
+          console.log('[Layout Store] 未找到保存的主布局，使用默认布局。');
         }
       } catch (error) {
-        console.error('[Layout Store] 从 localStorage 加载或解析布局失败:', error);
-        layoutTree.value = getDefaultLayout(); // 出错时回退到默认布局
+        console.error('[Layout Store] 从 localStorage 加载或解析主布局失败:', error);
+        layoutTree.value = getDefaultLayout();
       }
     }
+
+    // 5. 如果侧栏配置后端未加载成功，尝试从 localStorage 加载
+    if (!sidebarLoadedFromBackend) {
+        console.log('[Layout Store] Attempting to load sidebar config from localStorage...');
+        try {
+            const savedSidebars = localStorage.getItem(SIDEBAR_STORAGE_KEY);
+            if (savedSidebars) {
+                const parsedSidebars = JSON.parse(savedSidebars) as { left: any[], right: any[] }; // Parse as any[] first
+                // --- Add Validation ---
+                if (parsedSidebars &&
+                    isValidPaneNameArray(parsedSidebars.left, allPossiblePanes.value) &&
+                    isValidPaneNameArray(parsedSidebars.right, allPossiblePanes.value))
+                {
+                    sidebarPanes.value = parsedSidebars as { left: PaneName[], right: PaneName[] }; // Cast after validation
+                    console.log('[Layout Store] 侧栏配置从 localStorage 加载成功并通过验证。');
+                } else {
+                     console.warn('[Layout Store] localStorage 中的侧栏配置格式无效或包含无效/重复面板名称，使用默认值。');
+                     sidebarPanes.value = getDefaultSidebarPanes();
+                }
+            } else {
+                // 6. 如果 localStorage 也没有，使用默认侧栏配置
+                sidebarPanes.value = getDefaultSidebarPanes();
+                console.log('[Layout Store] 未找到保存的侧栏配置，使用默认配置。');
+            }
+        } catch (error) {
+            console.error('[Layout Store] 从 localStorage 加载或解析侧栏配置失败:', error);
+            sidebarPanes.value = getDefaultSidebarPanes();
+        }
+    }
   }
 
   // 更新整个布局树（通常由配置器保存时调用）
-  function updateLayoutTree(newTree: LayoutNode) {
-    // 可选：添加验证逻辑
-    layoutTree.value = newTree;
-    console.log('[Layout Store] 布局树已更新。');
+  function updateLayoutTree(newTree: LayoutNode | null) { // <-- Allow null
+    // 可选：添加验证逻辑 (如果 newTree 不是 null)
+    if (newTree) {
+        // TODO: Add validation for LayoutNode structure if needed
+    }
+    layoutTree.value = newTree; // Assign null or the new tree
+    console.log('[Layout Store] 布局树已更新。 New tree:', newTree);
     // 保存将在 watch 中自动触发
   }
 
-  // 新增：递归查找并更新节点大小
+  // 新增：更新侧栏配置
+  function updateSidebarPanes(newPanes: { left: PaneName[], right: PaneName[] }) {
+    // --- Add Validation ---
+    if (newPanes &&
+        isValidPaneNameArray(newPanes.left, allPossiblePanes.value) &&
+        isValidPaneNameArray(newPanes.right, allPossiblePanes.value))
+    {
+        sidebarPanes.value = newPanes as { left: PaneName[], right: PaneName[] }; // Assign validated data
+        // Log the value immediately after update
+        console.log('[Layout Store] 侧栏配置已通过验证并更新。 New sidebarPanes value:', JSON.parse(JSON.stringify(sidebarPanes.value)));
+        // 保存将在 watch 中自动触发
+    } else {
+        console.error('[Layout Store] updateSidebarPanes 接收到无效的侧栏配置数据，未更新状态:', newPanes);
+        // 可选：抛出错误或通知用户
+    }
+  }
+
+
+  // 递归查找并更新节点大小
   function findAndUpdateNodeSize(node: LayoutNode | null, nodeId: string, childrenSizes: { index: number; size: number }[]): LayoutNode | null {
     if (!node) return null;
     if (node.id === nodeId && node.type === 'container' && node.children) {
@@ -257,84 +376,129 @@ export const useLayoutStore = defineStore('layout', () => {
    return getDefaultLayout(); // 直接调用内部函数
  }
 
- // 新增 Action: 将当前布局树持久化到后端和 localStorage
+ // 新增 Action: 获取系统内置的默认侧栏配置
+ function getSystemDefaultSidebarPanes(): { left: PaneName[], right: PaneName[] } {
+     console.log('[Layout Store] Getting system default sidebar panes.');
+     return getDefaultSidebarPanes();
+ }
+
+ // 新增 Action: 将当前主布局树持久化到后端和 localStorage
  async function persistLayoutTree() {
    if (!layoutTree.value) {
      console.warn('[Layout Store] persistLayoutTree: layoutTree is null, cannot persist.');
-     // 可选：如果布局为空，是否也通知后端？或者删除后端的设置？
-     // await axios.delete('/api/v1/settings/layout'); // 示例：删除后端设置
-     localStorage.removeItem(LAYOUT_STORAGE_KEY); // 保持移除本地存储
+     // TODO: 考虑是否需要删除后端设置或发送空布局
+     // await apiClient.put('/settings/layout', null); // 发送 null 或空对象
+     localStorage.removeItem(LAYOUT_STORAGE_KEY);
      return;
    }
-
    const layoutToSave = JSON.stringify(layoutTree.value);
-
    // 1. 保存到后端
    try {
-     console.log('[Layout Store] Attempting to save layout to backend...');
-     await apiClient.put('/settings/layout', layoutTree.value); // 使用 apiClient
-     console.log('[Layout Store] 布局已成功保存到后端。');
+     console.log('[Layout Store] Attempting to save main layout to backend...');
+     // Send the layoutTree value directly (which can be null)
+     await apiClient.put('/settings/layout', layoutTree.value);
+     console.log('[Layout Store] 主布局已成功保存到后端 (sent value):', layoutTree.value);
    } catch (error) {
-     console.error('[Layout Store] 保存布局到后端失败:', error);
-     // 可以考虑添加用户提示
+     console.error('[Layout Store] 保存主布局到后端失败:', error);
    }
-
-   // 2. 保存到 localStorage (作为备份或离线支持)
+   // 2. 保存到 localStorage
    try {
+     // If layoutTree.value is null, layoutToSave will be 'null'
      localStorage.setItem(LAYOUT_STORAGE_KEY, layoutToSave);
-     console.log('[Layout Store] 布局已自动保存到 localStorage。');
+     console.log('[Layout Store] 主布局已自动保存到 localStorage (saved value):', layoutToSave);
    } catch (error) {
-     console.error('[Layout Store] 保存布局到 localStorage 失败:', error);
+     console.error('[Layout Store] 保存主布局到 localStorage 失败:', error);
    }
  }
 
-  // --- 持久化 ---
-  // 监听 layoutTree 的变化，并调用持久化方法
-  // 添加防抖以避免过于频繁的 API 调用
-  let debounceTimer: ReturnType<typeof setTimeout> | null = null;
-  watch(
-    layoutTree,
-    (newTree, oldTree) => {
-      // 避免初始化时触发 (虽然 initializeLayout 已经是 async，但以防万一)
-      if (oldTree === undefined) return;
-      // 只有在实际发生变化时才触发持久化
-      if (JSON.stringify(newTree) !== JSON.stringify(oldTree)) {
-        console.log('[Layout Store] Layout tree changed, scheduling persistence...');
-        if (debounceTimer) {
-          clearTimeout(debounceTimer);
-        }
-        debounceTimer = setTimeout(() => {
-          persistLayoutTree();
-        }, 1000); // 1秒防抖
-      }
-    },
-    { deep: true }
-  );
+ // 新增 Action: 将当前侧栏配置持久化到后端和 localStorage
+ async function persistSidebarPanes() {
+     const sidebarsToSave = JSON.stringify(sidebarPanes.value);
+     // 1. 保存到后端 (假设 API 端点为 /settings/sidebar)
+     try {
+         console.log('[Layout Store] Attempting to save sidebar config to backend...');
+         await apiClient.put('/settings/sidebar', sidebarPanes.value); // 新 API 端点
+         console.log('[Layout Store] 侧栏配置已成功保存到后端。');
+     } catch (error) {
+         console.error('[Layout Store] 保存侧栏配置到后端失败:', error);
+     }
+     // 2. 保存到 localStorage
+     try {
+         localStorage.setItem(SIDEBAR_STORAGE_KEY, sidebarsToSave);
+         console.log('[Layout Store] 侧栏配置已自动保存到 localStorage。');
+     } catch (error) {
+         console.error('[Layout Store] 保存侧栏配置到 localStorage 失败:', error);
+     }
+ }
 
-  // --- 初始化 ---
-  // Store 创建时自动初始化布局
-  initializeLayout();
 
-  // --- 返回 ---
-  return {
-    layoutTree,
-    availablePanes, // 供配置器使用
-    usedPanes,      // 可用于调试或内部逻辑
-    updateLayoutTree,
-    initializeLayout, // 允许外部重置或重新加载
-    updateNodeSizes, // *** 新增：暴露更新大小的 action ***
-    // 暴露 generateId 供配置器使用（如果需要）
-    generateId,
-    // 暴露 allPossiblePanes 供配置器显示所有选项
-    allPossiblePanes,
-    // 新增：暴露布局可见性状态和切换方法
-    isLayoutVisible,
-    toggleLayoutVisibility,
-    // 新增：暴露主导航栏可见性状态和操作
-    isHeaderVisible,
-    loadHeaderVisibility,
-    toggleHeaderVisibility,
-    // 新增：暴露获取默认布局的方法
-    getSystemDefaultLayout,
-  };
+ // --- 持久化 Watchers ---
+ let layoutDebounceTimer: ReturnType<typeof setTimeout> | null = null;
+ let sidebarDebounceTimer: ReturnType<typeof setTimeout> | null = null;
+
+ // 监听主布局树变化
+ watch(
+   layoutTree,
+   (newTree, oldTree) => {
+     if (oldTree === undefined) return; // 避免初始化触发
+     if (JSON.stringify(newTree) !== JSON.stringify(oldTree)) {
+       console.log('[Layout Store] Main layout tree changed, scheduling persistence...');
+       if (layoutDebounceTimer) clearTimeout(layoutDebounceTimer);
+       layoutDebounceTimer = setTimeout(() => {
+         persistLayoutTree();
+       }, 1000); // 1秒防抖
+     }
+   },
+   { deep: true }
+ );
+
+ // 监听侧栏配置变化
+ watch(
+     sidebarPanes,
+     (newPanes, oldPanes) => {
+         if (oldPanes === undefined) return; // 避免初始化触发
+         if (JSON.stringify(newPanes) !== JSON.stringify(oldPanes)) {
+             console.log('[Layout Store] Sidebar panes changed, scheduling persistence...');
+             if (sidebarDebounceTimer) clearTimeout(sidebarDebounceTimer);
+             sidebarDebounceTimer = setTimeout(() => {
+                 persistSidebarPanes();
+             }, 1000); // 1秒防抖
+         }
+     },
+     { deep: true }
+ );
+
+ // --- 初始化 ---
+ // Store 创建时自动初始化布局和侧栏
+ initializeLayout();
+ // 单独加载 Header 可见性（如果需要与布局初始化分开）
+ loadHeaderVisibility();
+
+
+ // --- 返回 ---
+ return {
+   // State
+   layoutTree,
+   sidebarPanes, // <--- 暴露侧栏状态
+   allPossiblePanes,
+   isLayoutVisible,
+   isHeaderVisible,
+   // Computed
+   availablePanes,
+   usedPanes,
+   // Actions
+   updateLayoutTree,
+   updateSidebarPanes, // <--- 暴露侧栏更新 action
+   initializeLayout,
+   updateNodeSizes,
+   generateId,
+   toggleLayoutVisibility,
+   loadHeaderVisibility,
+   toggleHeaderVisibility,
+   getSystemDefaultLayout,
+   getSystemDefaultSidebarPanes, // <--- 暴露获取默认侧栏配置的方法
+   // Persist actions (可选暴露，如果需要手动触发)
+   // persistLayoutTree,
+   // persistSidebarPanes,
+ };
 });
diff --git a/packages/frontend/src/views/WorkspaceView.vue b/packages/frontend/src/views/WorkspaceView.vue
index 0c9177b..c2b94c3 100644
--- a/packages/frontend/src/views/WorkspaceView.vue
+++ b/packages/frontend/src/views/WorkspaceView.vue
@@ -328,6 +328,7 @@ const handleCloseEditorTab = (tabId: string) => {
     <div class="main-content-area">
       <LayoutRenderer
         v-if="layoutTree"
+        :is-root-renderer="true"
         :layout-node="layoutTree"
         :active-session-id="activeSessionId"
         class="layout-renderer-wrapper"