diff --git a/webapp/src/components/AppAuthenticatedShell.tsx b/webapp/src/components/AppAuthenticatedShell.tsx
index b7b9613..220bcf2 100644
--- a/webapp/src/components/AppAuthenticatedShell.tsx
+++ b/webapp/src/components/AppAuthenticatedShell.tsx
@@ -1,6 +1,6 @@
-import { ArrowUpDown, Check, ChevronDown, Clock3, Cloud, FileClock, Folder as FolderIcon, KeyRound, Lock, LogOut, MonitorSmartphone, Send as SendIcon, Settings as SettingsIcon, ShieldCheck, ShieldUser, SlidersHorizontal, Sparkles, Users } from 'lucide-preact';
+import { ArrowUpDown, ChevronDown, Clock3, Cloud, FileClock, Folder as FolderIcon, KeyRound, Lock, LogOut, MonitorSmartphone, Send as SendIcon, Settings as SettingsIcon, ShieldCheck, ShieldUser, Sparkles, Users } from 'lucide-preact';
 import type { ComponentChildren } from 'preact';
-import { useEffect, useRef, useState } from 'preact/hooks';
+import { useState } from 'preact/hooks';
 import { Link } from 'wouter';
 import AppMainRoutes from '@/components/AppMainRoutes';
 import NetworkStatusBadge from '@/components/NetworkStatusBadge';
@@ -28,19 +28,32 @@ interface AppAuthenticatedShellProps {
   mainRoutesProps: AppMainRoutesProps;
 }
 
-type NavLayoutMode = 'flat' | 'grouped-expanded' | 'grouped-smart';
+const NAV_GROUPS_STORAGE_KEY = 'nodewarden.navGroups';
 
-const NAV_LAYOUT_STORAGE_KEY = 'nodewarden.navLayoutMode';
+const DEFAULT_EXPANDED_GROUPS = {
+  tools: true,
+  settings: true,
+  management: true,
+};
 
-function readNavLayoutMode(): NavLayoutMode {
-  if (typeof window === 'undefined') return 'flat';
+type NavGroup = keyof typeof DEFAULT_EXPANDED_GROUPS;
+type ExpandedGroups = Record<NavGroup, boolean>;
+
+function readExpandedGroups(): ExpandedGroups {
+  if (typeof window === 'undefined') return DEFAULT_EXPANDED_GROUPS;
   try {
-    const saved = window.localStorage.getItem(NAV_LAYOUT_STORAGE_KEY);
-    if (saved === 'flat' || saved === 'grouped-expanded' || saved === 'grouped-smart') return saved;
+    const saved = window.localStorage.getItem(NAV_GROUPS_STORAGE_KEY);
+    if (!saved) return DEFAULT_EXPANDED_GROUPS;
+    const parsed = JSON.parse(saved) as Partial<ExpandedGroups>;
+    return {
+      tools: typeof parsed.tools === 'boolean' ? parsed.tools : DEFAULT_EXPANDED_GROUPS.tools,
+      settings: typeof parsed.settings === 'boolean' ? parsed.settings : DEFAULT_EXPANDED_GROUPS.settings,
+      management: typeof parsed.management === 'boolean' ? parsed.management : DEFAULT_EXPANDED_GROUPS.management,
+    };
   } catch {
     // Ignore local preference read failures.
   }
-  return 'flat';
+  return DEFAULT_EXPANDED_GROUPS;
 }
 
 function isAdminProfile(profile: Profile | null): boolean {
@@ -55,58 +68,19 @@ export default function AppAuthenticatedShell(props: AppAuthenticatedShellProps)
   const isDomainRulesRoute = props.location === '/settings/domain-rules';
   const isLogRoute = props.location === '/logs';
   const isAdmin = isAdminProfile(props.profile);
-  const vaultActive = props.location === '/vault' || props.location === '/vault/totp' || props.location === '/security/password-health';
   const deviceManagementActive = props.location === DEVICE_MANAGEMENT_ROUTE || props.location === LEGACY_DEVICE_MANAGEMENT_ROUTE;
-  const settingsActive = props.location === '/settings' || props.location === props.settingsAccountRoute || props.location === '/settings/domain-rules' || deviceManagementActive;
-  const flatSettingsActive = settingsActive && !deviceManagementActive;
-  const dataActive = props.location === '/backup' || props.isImportRoute;
-  const managementActive = props.location === '/admin' || props.location === '/logs';
-  const [navLayoutMode, setNavLayoutMode] = useState<NavLayoutMode>(readNavLayoutMode);
-  const [navLayoutPickerOpen, setNavLayoutPickerOpen] = useState(false);
-  const navLayoutPickerRef = useRef<HTMLDivElement | null>(null);
-  const [expandedGroups, setExpandedGroups] = useState({
-    vault: true,
-    settings: false,
-    data: false,
-    management: false,
-  });
+  const [expandedGroups, setExpandedGroups] = useState<ExpandedGroups>(readExpandedGroups);
 
-  useEffect(() => {
-    const onPointerDown = (event: Event) => {
-      if (!navLayoutPickerOpen) return;
-      const target = event.target as Node | null;
-      if (navLayoutPickerRef.current && target && !navLayoutPickerRef.current.contains(target)) {
-        setNavLayoutPickerOpen(false);
+  function toggleGroup(group: NavGroup): void {
+    setExpandedGroups((current) => {
+      const next = { ...current, [group]: !current[group] };
+      try {
+        window.localStorage.setItem(NAV_GROUPS_STORAGE_KEY, JSON.stringify(next));
+      } catch {
+        // Ignore local preference write failures.
       }
-    };
-    const onKeyDown = (event: KeyboardEvent) => {
-      if (event.key === 'Escape') setNavLayoutPickerOpen(false);
-    };
-    document.addEventListener('pointerdown', onPointerDown);
-    document.addEventListener('keydown', onKeyDown);
-    return () => {
-      document.removeEventListener('pointerdown', onPointerDown);
-      document.removeEventListener('keydown', onKeyDown);
-    };
-  }, [navLayoutPickerOpen]);
-
-  function setNavMode(mode: NavLayoutMode): void {
-    setNavLayoutMode(mode);
-    setNavLayoutPickerOpen(false);
-    try {
-      window.localStorage.setItem(NAV_LAYOUT_STORAGE_KEY, mode);
-    } catch {
-      // Ignore local preference write failures.
-    }
-  }
-
-  function toggleGroup(group: keyof typeof expandedGroups): void {
-    setExpandedGroups((current) => ({ ...current, [group]: !current[group] }));
-  }
-
-  function groupOpen(group: keyof typeof expandedGroups, active: boolean): boolean {
-    if (navLayoutMode === 'grouped-expanded') return true;
-    return expandedGroups[group] || active;
+      return next;
+    });
   }
 
   function renderSideLink(href: string, active: boolean, icon: ComponentChildren, label: string) {
@@ -127,18 +101,17 @@ export default function AppAuthenticatedShell(props: AppAuthenticatedShellProps)
   }
 
   function renderNavGroup(
-    group: keyof typeof expandedGroups,
+    group: NavGroup,
     title: string,
     icon: ComponentChildren,
-    active: boolean,
     children: ComponentChildren
   ) {
-    const open = groupOpen(group, active);
+    const open = expandedGroups[group];
     return (
       <div className={`side-nav-group ${open ? 'open' : ''}`}>
         <button
           type="button"
-          className={`side-group-trigger ${active ? 'active' : ''}`}
+          className="side-group-trigger"
           aria-expanded={open}
           onClick={() => toggleGroup(group)}
         >
@@ -155,84 +128,42 @@ export default function AppAuthenticatedShell(props: AppAuthenticatedShellProps)
     );
   }
 
-  const navLayoutOptions: Array<{ mode: NavLayoutMode; label: string }> = [
-    {
-      mode: 'flat',
-      label: t('txt_nav_layout_flat'),
-    },
-    {
-      mode: 'grouped-expanded',
-      label: t('txt_nav_layout_grouped_expanded'),
-    },
-    {
-      mode: 'grouped-smart',
-      label: t('txt_nav_layout_grouped_smart'),
-    },
-  ];
-
-  const navLayoutLabel = navLayoutOptions.find((option) => option.mode === navLayoutMode)?.label || t('txt_nav_layout_flat');
-  const flatNav = (
-    <>
-      {renderSideLink('/vault', props.location === '/vault', <KeyRound size={16} />, t('nav_vault_items'))}
-      {renderSideLink('/vault/totp', props.location === '/vault/totp', <Clock3 size={16} />, t('txt_verification_code'))}
-      {renderSideLink('/security/password-health', props.location === '/security/password-health', <ShieldCheck size={16} />, t('nav_password_security'))}
-      {renderSideLink('/generator', props.location === '/generator', <Sparkles size={16} />, t('nav_generator'))}
-      {renderSideLink('/sends', props.location === '/sends', <SendIcon size={16} />, t('nav_sends'))}
-      {renderSideLink('/settings', flatSettingsActive, <SettingsIcon size={16} />, t('txt_settings'))}
-      {renderSideLink(DEVICE_MANAGEMENT_ROUTE, deviceManagementActive, <MonitorSmartphone size={16} />, t('nav_device_management'))}
-      {isAdmin && renderSideLink('/backup', props.location === '/backup', <Cloud size={16} />, t('nav_backup_strategy'))}
-      {renderSideLink(props.importRoute, props.isImportRoute, <ArrowUpDown size={16} />, t('nav_import_export'))}
-      {isAdmin && renderSideLink('/admin', props.location === '/admin', <Users size={16} />, t('nav_admin_panel'))}
-      {isAdmin && renderSideLink('/logs', props.location === '/logs', <FileClock size={16} />, t('nav_log_center'))}
-    </>
-  );
-
   const groupedNav = (
     <>
-      {renderNavGroup(
-        'vault',
-        t('nav_my_vault'),
-        <KeyRound size={16} />,
-        vaultActive,
-        <>
-          {renderSubLink('/vault', props.location === '/vault', t('nav_vault_items'))}
-          {renderSubLink('/vault/totp', props.location === '/vault/totp', t('txt_verification_code'))}
-          {renderSubLink('/security/password-health', props.location === '/security/password-health', t('nav_password_security'))}
-        </>
-      )}
-      {renderSideLink('/generator', props.location === '/generator', <Sparkles size={16} />, t('nav_generator'))}
+      {renderSideLink('/vault', props.location === '/vault', <KeyRound size={16} />, t('nav_vault_items'))}
       {renderSideLink('/sends', props.location === '/sends', <SendIcon size={16} />, t('nav_sends'))}
       {renderNavGroup(
-        'settings',
-        t('txt_settings'),
-        <SettingsIcon size={16} />,
-        settingsActive,
+        'tools',
+        t('nav_group_tools'),
+        <Sparkles size={16} />,
         <>
-          {renderSubLink(props.settingsAccountRoute, props.location === props.settingsAccountRoute, t('nav_account_settings'))}
-          {renderSubLink('/settings/domain-rules', props.location === '/settings/domain-rules', t('nav_domain_rules'))}
-          {renderSubLink(DEVICE_MANAGEMENT_ROUTE, deviceManagementActive, t('nav_device_management'))}
-        </>
-      )}
-      {renderNavGroup(
-        'data',
-        t('nav_group_data_backup'),
-        <Cloud size={16} />,
-        dataActive,
-        <>
-          {isAdmin && renderSubLink('/backup', props.location === '/backup', t('nav_backup_strategy'))}
+          {renderSubLink('/vault/totp', props.location === '/vault/totp', t('txt_verification_code'))}
+          {renderSubLink('/generator', props.location === '/generator', t('nav_generator'))}
+          {renderSubLink('/security/password-health', props.location === '/security/password-health', t('nav_password_security'))}
           {renderSubLink(props.importRoute, props.isImportRoute, t('nav_import_export'))}
         </>
       )}
       {renderNavGroup(
-        'management',
-        t('nav_group_management'),
-        <ShieldUser size={16} />,
-        managementActive,
+        'settings',
+        t('txt_settings'),
+        <SettingsIcon size={16} />,
         <>
-          {isAdmin && renderSubLink('/admin', props.location === '/admin', t('nav_admin_panel'))}
-          {isAdmin && renderSubLink('/logs', props.location === '/logs', t('nav_log_center'))}
+          {renderSubLink(props.settingsAccountRoute, props.location === props.settingsAccountRoute, t('nav_account_settings'))}
+          {renderSubLink(DEVICE_MANAGEMENT_ROUTE, deviceManagementActive, t('nav_device_management'))}
+          {renderSubLink('/settings/domain-rules', props.location === '/settings/domain-rules', t('nav_domain_rules'))}
         </>
       )}
+      {isAdmin &&
+        renderNavGroup(
+          'management',
+          t('nav_group_system_management'),
+          <ShieldUser size={16} />,
+          <>
+            {renderSubLink('/backup', props.location === '/backup', t('nav_backup_strategy'))}
+            {renderSubLink('/admin', props.location === '/admin', t('nav_admin_panel'))}
+            {renderSubLink('/logs', props.location === '/logs', t('nav_log_center'))}
+          </>
+        )}
     </>
   );
 
@@ -281,38 +212,7 @@ export default function AppAuthenticatedShell(props: AppAuthenticatedShellProps)
         <div className="app-main">
           <aside className="app-side">
             <div className="side-nav-main">
-              {navLayoutMode === 'flat' ? flatNav : groupedNav}
-            </div>
-            <div className="nav-layout-control" ref={navLayoutPickerRef}>
-              {navLayoutPickerOpen && (
-                <div className="nav-layout-menu" role="menu">
-                  {navLayoutOptions.map((option) => (
-                    <button
-                      key={option.mode}
-                      type="button"
-                      className={`nav-layout-option ${navLayoutMode === option.mode ? 'active' : ''}`}
-                      onClick={() => setNavMode(option.mode)}
-                      role="menuitemradio"
-                      aria-checked={navLayoutMode === option.mode}
-                    >
-                      <span className="nav-layout-option-text">
-                        <strong>{option.label}</strong>
-                      </span>
-                      {navLayoutMode === option.mode && <Check size={15} className="nav-layout-check" />}
-                    </button>
-                  ))}
-                </div>
-              )}
-              <button
-                type="button"
-                className={`nav-layout-trigger ${navLayoutPickerOpen ? 'active' : ''}`}
-                aria-haspopup="menu"
-                aria-expanded={navLayoutPickerOpen}
-                onClick={() => setNavLayoutPickerOpen((open) => !open)}
-                title={t('txt_nav_layout')}
-              >
-                <SlidersHorizontal size={15} />
-              </button>
+              {groupedNav}
             </div>
           </aside>
           <main className="content">
diff --git a/webapp/src/components/AppMainRoutes.tsx b/webapp/src/components/AppMainRoutes.tsx
index bb2ff1e..d8702b0 100644
--- a/webapp/src/components/AppMainRoutes.tsx
+++ b/webapp/src/components/AppMainRoutes.tsx
@@ -210,9 +210,19 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
   return (
     <Switch>
       <Route path="/security/password-health">
-        <Suspense fallback={<RouteContentFallback />}>
-          <PasswordSecurityPage ciphers={props.decryptedCiphers} loading={props.ciphersLoading} />
-        </Suspense>
+        <div className="stack">
+          {props.mobileLayout && (
+            <div className="mobile-settings-subhead">
+              <button type="button" className="btn btn-secondary small mobile-settings-back" onClick={() => props.onNavigate(props.settingsHomeRoute)}>
+                <span className="btn-icon" aria-hidden="true">{"<"}</span>
+                {t('txt_back')}
+              </button>
+            </div>
+          )}
+          <Suspense fallback={<RouteContentFallback />}>
+            <PasswordSecurityPage ciphers={props.decryptedCiphers} loading={props.ciphersLoading} />
+          </Suspense>
+        </div>
       </Route>
       <Route path="/generator">
         <Suspense fallback={<RouteContentFallback />}>
@@ -333,6 +343,19 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
       <Route path="/settings">
         {props.profile ? (
           <section className="card mobile-settings-card settings-home-card">
+            <div className="settings-home-section">
+              <h3>{t('nav_group_tools')}</h3>
+              <div className="mobile-settings-links">
+                <Link href="/security/password-health" className="mobile-settings-link">
+                  <ShieldCheck size={18} />
+                  <span>{t('nav_password_security')}</span>
+                </Link>
+                <Link href={props.importRoute} className="mobile-settings-link">
+                  <ArrowUpDown size={18} />
+                  <span>{t('nav_import_export')}</span>
+                </Link>
+              </div>
+            </div>
             <div className="settings-home-section">
               <h3>{t('txt_settings')}</h3>
               <div className="mobile-settings-links">
@@ -340,10 +363,6 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
                   <SettingsIcon size={18} />
                   <span>{t('nav_account_settings')}</span>
                 </Link>
-                <Link href="/security/password-health" className="mobile-settings-link">
-                  <ShieldCheck size={18} />
-                  <span>{t('nav_password_security')}</span>
-                </Link>
                 <Link href="/settings/security/device-management" className="mobile-settings-link">
                   <Shield size={18} />
                   <span>{t('nav_device_management')}</span>
@@ -354,25 +373,14 @@ export default function AppMainRoutes(props: AppMainRoutesProps) {
                 </Link>
               </div>
             </div>
-            <div className="settings-home-section">
-              <h3>{t('nav_group_data_backup')}</h3>
-              <div className="mobile-settings-links">
-                <Link href={props.importRoute} className="mobile-settings-link">
-                  <ArrowUpDown size={18} />
-                  <span>{t('nav_import_export')}</span>
-                </Link>
-                {isAdmin && (
+            {isAdmin && (
+              <div className="settings-home-section">
+                <h3>{t('nav_group_system_management')}</h3>
+                <div className="mobile-settings-links">
                   <Link href="/backup" className="mobile-settings-link">
                     <Cloud size={18} />
                     <span>{t('nav_backup_strategy')}</span>
                   </Link>
-                )}
-              </div>
-            </div>
-            {isAdmin && (
-              <div className="settings-home-section">
-                <h3>{t('nav_group_management')}</h3>
-                <div className="mobile-settings-links">
                   <Link href="/admin" className="mobile-settings-link">
                     <ShieldUser size={18} />
                     <span>{t('nav_admin_panel')}</span>
diff --git a/webapp/src/lib/i18n/locales/de.ts b/webapp/src/lib/i18n/locales/de.ts
index 99fbcec..cdd2df3 100644
--- a/webapp/src/lib/i18n/locales/de.ts
+++ b/webapp/src/lib/i18n/locales/de.ts
@@ -12,6 +12,8 @@ const de: Record<string, string> = {
   "nav_import_export": "Import und Export",
   "nav_group_data_backup": "Daten & Backup",
   "nav_group_management": "Verwaltung",
+  "nav_group_tools": "Werkzeuge",
+  "nav_group_system_management": "Systemverwaltung",
   "txt_settings_appearance": "Erscheinungsbild",
   "txt_theme": "Design",
   "txt_use_system_theme": "Systemdesign verwenden",
diff --git a/webapp/src/lib/i18n/locales/en.ts b/webapp/src/lib/i18n/locales/en.ts
index 8a927c6..ff58dce 100644
--- a/webapp/src/lib/i18n/locales/en.ts
+++ b/webapp/src/lib/i18n/locales/en.ts
@@ -35,6 +35,8 @@ const en: Record<string, string> = {
   "nav_import_export": "Import & Export",
   "nav_group_data_backup": "Data & Backup",
   "nav_group_management": "Management",
+  "nav_group_tools": "Tools",
+  "nav_group_system_management": "System Management",
   "txt_settings_appearance": "Appearance",
   "txt_theme": "Theme",
   "txt_use_system_theme": "Use system theme",
diff --git a/webapp/src/lib/i18n/locales/es.ts b/webapp/src/lib/i18n/locales/es.ts
index fa8f122..1e31887 100644
--- a/webapp/src/lib/i18n/locales/es.ts
+++ b/webapp/src/lib/i18n/locales/es.ts
@@ -12,6 +12,8 @@ const es: Record<string, string> = {
   "nav_import_export": "Importar y exportar",
   "nav_group_data_backup": "Datos y copias",
   "nav_group_management": "Gestión",
+  "nav_group_tools": "Herramientas",
+  "nav_group_system_management": "Administración del sistema",
   "txt_settings_appearance": "Apariencia",
   "txt_theme": "Tema",
   "txt_use_system_theme": "Usar tema del sistema",
diff --git a/webapp/src/lib/i18n/locales/fi.ts b/webapp/src/lib/i18n/locales/fi.ts
index f561ed2..e96cdb2 100644
--- a/webapp/src/lib/i18n/locales/fi.ts
+++ b/webapp/src/lib/i18n/locales/fi.ts
@@ -12,6 +12,8 @@ const fi: Record<string, string> = {
   "nav_import_export": "Tuonti ja Vienti",
   "nav_group_data_backup": "Data & Varmuuskopiointi",
   "nav_group_management": "Hallinta",
+  "nav_group_tools": "Työkalut",
+  "nav_group_system_management": "Järjestelmän hallinta",
   "txt_settings_appearance": "Ulkoasu",
   "txt_theme": "Teema",
   "txt_use_system_theme": "Käytä järjestelmän teemaa",
diff --git a/webapp/src/lib/i18n/locales/fr.ts b/webapp/src/lib/i18n/locales/fr.ts
index 0ced531..eaf6214 100644
--- a/webapp/src/lib/i18n/locales/fr.ts
+++ b/webapp/src/lib/i18n/locales/fr.ts
@@ -12,6 +12,8 @@ const fr: Record<string, string> = {
   "nav_import_export": "Importer & Exporter",
   "nav_group_data_backup": "Données & Sauvegarde",
   "nav_group_management": "Gestion",
+  "nav_group_tools": "Outils",
+  "nav_group_system_management": "Administration système",
   "txt_settings_appearance": "Apparence",
   "txt_theme": "Thème",
   "txt_use_system_theme": "Utiliser le thème du système",
diff --git a/webapp/src/lib/i18n/locales/it.ts b/webapp/src/lib/i18n/locales/it.ts
index 1f882c1..eab8758 100644
--- a/webapp/src/lib/i18n/locales/it.ts
+++ b/webapp/src/lib/i18n/locales/it.ts
@@ -12,6 +12,8 @@ const it: Record<string, string> = {
   "nav_import_export": "Importa ed Esporta",
   "nav_group_data_backup": "Dati e Backup",
   "nav_group_management": "Gestione",
+  "nav_group_tools": "Strumenti",
+  "nav_group_system_management": "Gestione del sistema",
   "txt_settings_appearance": "Aspetto",
   "txt_theme": "Tema",
   "txt_use_system_theme": "Usa il tema del sistema",
diff --git a/webapp/src/lib/i18n/locales/ru.ts b/webapp/src/lib/i18n/locales/ru.ts
index 8a97d4b..33ff27b 100644
--- a/webapp/src/lib/i18n/locales/ru.ts
+++ b/webapp/src/lib/i18n/locales/ru.ts
@@ -13,6 +13,8 @@ const ru: Record<string, string> = {
   "nav_import_export": "Импорт и экспорт",
   "nav_group_data_backup": "Данные и резервные копии",
   "nav_group_management": "Управление",
+  "nav_group_tools": "Инструменты",
+  "nav_group_system_management": "Управление системой",
   "txt_settings_appearance": "Внешний вид",
   "txt_theme": "Тема",
   "txt_use_system_theme": "Использовать системную тему",
diff --git a/webapp/src/lib/i18n/locales/sv.ts b/webapp/src/lib/i18n/locales/sv.ts
index 9baf63d..94d9aa2 100644
--- a/webapp/src/lib/i18n/locales/sv.ts
+++ b/webapp/src/lib/i18n/locales/sv.ts
@@ -12,6 +12,8 @@ const sv: Record<string, string> = {
   "nav_import_export": "Importera och Exportera",
   "nav_group_data_backup": "Data och Säkerhetskopiering",
   "nav_group_management": "Hantering",
+  "nav_group_tools": "Verktyg",
+  "nav_group_system_management": "Systemadministration",
   "txt_settings_appearance": "Utseende",
   "txt_theme": "Tema",
   "txt_use_system_theme": "Använd systemtema",
diff --git a/webapp/src/lib/i18n/locales/zh-CN.ts b/webapp/src/lib/i18n/locales/zh-CN.ts
index 90ed5ed..fa4bf22 100644
--- a/webapp/src/lib/i18n/locales/zh-CN.ts
+++ b/webapp/src/lib/i18n/locales/zh-CN.ts
@@ -15,6 +15,8 @@ const zhCN: Record<string, string> = {
   "nav_import_export": "导入导出",
   "nav_group_data_backup": "数据与备份",
   "nav_group_management": "管理",
+  "nav_group_tools": "工具",
+  "nav_group_system_management": "系统管理",
   "txt_settings_appearance": "外观",
   "txt_theme": "主题",
   "txt_use_system_theme": "使用系统主题",
diff --git a/webapp/src/lib/i18n/locales/zh-TW.ts b/webapp/src/lib/i18n/locales/zh-TW.ts
index 7a689fc..8d190c2 100644
--- a/webapp/src/lib/i18n/locales/zh-TW.ts
+++ b/webapp/src/lib/i18n/locales/zh-TW.ts
@@ -15,6 +15,8 @@ const zhTW: Record<string, string> = {
   "nav_import_export": "導入導出",
   "nav_group_data_backup": "資料與備份",
   "nav_group_management": "管理",
+  "nav_group_tools": "工具",
+  "nav_group_system_management": "系統管理",
   "txt_settings_appearance": "外觀",
   "txt_theme": "主題",
   "txt_use_system_theme": "使用系統主題",
diff --git a/webapp/src/styles.css b/webapp/src/styles.css
index b7cdcfb..ab38e59 100644
--- a/webapp/src/styles.css
+++ b/webapp/src/styles.css
@@ -677,7 +677,7 @@ h4 {
 }
 
 .card {
-  margin-bottom: 0px;
+  margin-bottom: 10;
   padding: 14px;
 }