diff --git a/frontend/src/views/components/ConfigSettings/ConfigSettings.css b/frontend/src/views/components/ConfigSettings/ConfigSettings.css
index 1de0dba..42b4cba 100644
--- a/frontend/src/views/components/ConfigSettings/ConfigSettings.css
+++ b/frontend/src/views/components/ConfigSettings/ConfigSettings.css
@@ -100,43 +100,11 @@
 }
 .config-workspace {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 176px;
+  grid-template-columns: minmax(0, 1fr) 152px;
   grid-template-areas: "main submenu";
   align-items: start;
   gap: 20px;
 }
-.config-submenu {
-  grid-area: submenu;
-  position: sticky;
-  top: 0;
-  display: grid;
-  gap: 6px;
-  align-self: start;
-  padding: 8px;
-  border: 1px solid var(--pm-border-color);
-  border-radius: var(--pm-radius-lg);
-  background: var(--pm-bg-secondary);
-}
-.config-submenu-item {
-  width: 100%;
-  padding: 12px 14px;
-  color: var(--pm-text-secondary);
-  text-align: left;
-  font: inherit;
-  border: 0;
-  border-radius: var(--pm-radius-sm);
-  background: transparent;
-  cursor: pointer;
-  transition: color .2s ease, background-color .2s ease;
-}
-.config-submenu-item:hover,
-.config-submenu-item.active {
-  color: var(--pm-primary-color);
-  background: var(--el-color-primary-light-9);
-}
-.config-submenu-item.active {
-  font-weight: 600;
-}
 .config-main {
   grid-area: main;
   display: grid;
@@ -293,7 +261,7 @@
 .audit-item time {
   flex: none;
 }
-@media (max-width: 640px) {
+@container settings-content (max-width: 560px) {
   .status-panel,
   .editor-panel,
   .rollback-panel,
@@ -320,18 +288,6 @@
       "main";
     gap: 16px;
   }
-  .config-submenu {
-    position: static;
-    display: flex;
-    gap: 6px;
-    overflow-x: auto;
-    padding: 6px;
-  }
-  .config-submenu-item {
-    flex: 0 0 auto;
-    width: auto;
-    white-space: nowrap;
-  }
   .selected-section-label {
     white-space: normal;
   }
diff --git a/frontend/src/views/components/ConfigSettings/ConfigSettings.vue b/frontend/src/views/components/ConfigSettings/ConfigSettings.vue
index 3c531b3..c0abf37 100644
--- a/frontend/src/views/components/ConfigSettings/ConfigSettings.vue
+++ b/frontend/src/views/components/ConfigSettings/ConfigSettings.vue
@@ -20,19 +20,13 @@
     </div>
 
     <div v-else-if="!loading" class="config-workspace">
-      <nav class="config-submenu" aria-label="配置分区">
-        <button
-          v-for="item in sectionOptions"
-          :key="item.value"
-          type="button"
-          class="config-submenu-item"
-          :class="{ active: selectedSection === item.value }"
-          :aria-current="selectedSection === item.value ? 'page' : undefined"
-          @click="selectSection(item.value)"
-        >
-          {{ item.label }}
-        </button>
-      </nav>
+      <SettingsSubmenu
+        title="配置管理"
+        caption="配置分区"
+        :items="sectionOptions"
+        :model-value="selectedSection"
+        @select="selectSection"
+      />
 
       <div class="config-main">
         <section class="status-panel">
@@ -285,6 +279,7 @@
 <script setup>
 import { computed } from 'vue'
 import { usePage } from './ConfigSettings.js'
+import SettingsSubmenu from '../SettingsSubmenu/SettingsSubmenu.vue'
 
 const {
   availabilityError,
diff --git a/frontend/src/views/components/HomeHeader/HomeHeader.css b/frontend/src/views/components/HomeHeader/HomeHeader.css
index 2379c78..7f294fa 100644
--- a/frontend/src/views/components/HomeHeader/HomeHeader.css
+++ b/frontend/src/views/components/HomeHeader/HomeHeader.css
@@ -66,25 +66,148 @@
 }
 
 .settings-tabs {
+  width: 100%;
   height: 100%;
+  min-height: 0;
+  --settings-accent: var(--pm-primary-color);
 }
 
-.settings-drawer :deep(.el-drawer__body) {
+/* 抽屉由 Teleport 挂载，使用专属类限定，不能依赖祖先的作用域属性。 */
+:global(.settings-drawer > .el-drawer__header) {
+  margin-bottom: 0;
+  padding: 24px;
+  border-bottom: 1px solid var(--pm-border-color);
+}
+
+.settings-drawer-heading {
+  display: flex;
+  align-items: center;
+  gap: 18px;
+  min-width: 0;
+}
+
+.settings-drawer-heading h2 {
+  margin: 0;
+  color: var(--pm-text-primary);
+  font-size: 22px;
+  font-weight: 700;
+}
+
+.settings-location {
+  display: inline-flex;
+  align-items: center;
+  gap: 18px;
+  color: var(--pm-text-secondary);
+  font-size: 14px;
+}
+
+.settings-location > span {
+  color: var(--pm-text-muted);
+}
+
+:global(.settings-drawer > .el-drawer__body) {
   display: flex;
   min-height: 0;
-  padding: 0 20px 20px;
+  padding: 24px;
   overflow: hidden;
 }
 
-.settings-tabs :deep(.el-tabs__header) {
-  flex: 0 0 176px;
-  margin: 0 0 0 20px;
+.settings-tabs > :deep(.el-tabs__header) {
+  flex: 0 0 184px;
+  margin: 0 0 0 20px !important;
+  padding: 12px 8px;
+  border: 1px solid var(--pm-border-color);
+  border-radius: var(--pm-radius-lg);
+  background: var(--pm-bg-primary);
 }
 
-.settings-tabs :deep(.el-tabs__content) {
+.settings-tabs > :deep(.el-tabs__header .el-tabs__nav-wrap::after),
+.settings-tabs > :deep(.el-tabs__header .el-tabs__active-bar) {
+  display: none;
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__nav-wrap) {
+  margin: 0;
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__nav) {
+  border: 0;
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__item) {
+  height: auto;
+  min-height: 64px;
+  justify-content: flex-start;
+  margin: 3px 0;
+  padding: 12px !important;
+  border: 1px solid transparent;
+  border-radius: 12px;
+  color: var(--pm-text-secondary);
+  text-align: left;
+  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__item:hover:not(.is-active)) {
+  color: var(--pm-text-primary);
+  background: var(--pm-bg-hover);
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__item.is-active) {
+  color: #fff;
+  background: var(--pm-primary-color);
+  border-color: var(--pm-primary-color);
+  box-shadow: var(--pm-shadow-sm);
+}
+
+.settings-tabs > :deep(.el-tabs__header .el-tabs__item:focus-visible) {
+  outline: 2px solid var(--settings-accent);
+  outline-offset: -3px;
+  box-shadow: inset 0 0 0 4px var(--pm-surface-solid);
+}
+
+.settings-category {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-width: 0;
+}
+
+.settings-category-icon {
+  flex: none;
+  font-size: 20px;
+}
+
+.settings-category-copy {
+  display: grid;
+  gap: 4px;
+}
+
+.settings-category-label {
+  font-size: 14px;
+  font-weight: 650;
+  line-height: 1.4;
+}
+
+.settings-category-hint {
+  font-size: 11px;
+  font-weight: 400;
+  line-height: 1.4;
+  opacity: .85;
+}
+
+.settings-tabs > :deep(.el-tabs__content) {
   flex: 1;
   min-width: 0;
+  padding-right: 4px;
   overflow: auto;
+  scrollbar-gutter: stable;
+  container: settings-content / inline-size;
+}
+
+@media (prefers-color-scheme: dark) {
+  .settings-tabs {
+    --settings-accent: var(--pm-primary-light-3);
+  }
 }
 
 @media (max-width: 768px) {
@@ -106,17 +229,34 @@
     display: block;
   }
 
-  .settings-drawer :deep(.el-drawer__body) {
+  :global(.settings-drawer > .el-drawer__body) {
     padding: 0 10px 10px;
     overflow: auto;
   }
 
-  .settings-tabs :deep(.el-tabs__header) {
-    flex: none;
-    margin: 0;
+  :global(.settings-drawer > .el-drawer__header) {
+    padding: 18px 14px;
   }
 
-  .settings-tabs :deep(.el-tabs__content) {
+  .settings-tabs > :deep(.el-tabs__header) {
+    flex: none;
+    margin: 12px 0 16px !important;
+    padding: 4px;
+    border-radius: 14px;
+  }
+
+  .settings-tabs > :deep(.el-tabs__header .el-tabs__item) {
+    min-height: 44px;
+    margin: 0 2px;
+    padding: 8px 12px !important;
+  }
+
+  .settings-category-hint {
+    display: none;
+  }
+
+  .settings-tabs > :deep(.el-tabs__content) {
+    padding-right: 0;
     overflow: visible;
   }
 }
diff --git a/frontend/src/views/components/HomeHeader/HomeHeader.js b/frontend/src/views/components/HomeHeader/HomeHeader.js
index c22ff3a..70ea06b 100644
--- a/frontend/src/views/components/HomeHeader/HomeHeader.js
+++ b/frontend/src/views/components/HomeHeader/HomeHeader.js
@@ -1,4 +1,5 @@
 import {EpMenu} from "vue-icons-plus/ep";
+import { Lock, Connection, Setting, FolderOpened, Filter, User, Grid } from '@element-plus/icons-vue';
 
 import {computed, ref, onMounted, onUnmounted} from 'vue'
 
@@ -42,15 +43,17 @@ export function usePage() {
   });
 
   const settingsMenu = computed(() => [
-    { key: 'security', label: lang.security, component: SecuritySettings, capability: 'password.change_own' },
-    { key: 'third-party', label: '第三方授权', component: ThirdPartyAuthorization, capability: 'plugin.write_own' },
-    { key: 'config', label: '配置管理', component: ConfigSettings, capability: 'config.read' },
-    { key: 'group', label: lang.group_settings, component: GroupSettings, capability: 'user.read' },
-    { key: 'rule', label: lang.rule_setting, component: RuleSettings, capability: 'user.read' },
-    { key: 'users', label: lang.user_management, component: UserManagement, capability: 'user.manage' },
-    { key: 'plugins', label: lang.plugin_settings, component: PluginSettings, capability: 'plugin.read' },
+    { key: 'security', label: lang.security, hint: '账号与登录保护', icon: Lock, component: SecuritySettings, capability: 'password.change_own' },
+    { key: 'third-party', label: '第三方授权', hint: '邮件客户端接入', icon: Connection, component: ThirdPartyAuthorization, capability: 'plugin.write_own' },
+    { key: 'config', label: '配置管理', hint: '服务与运行配置', icon: Setting, component: ConfigSettings, capability: 'config.read' },
+    { key: 'group', label: lang.group_settings, hint: '邮箱分组管理', icon: FolderOpened, component: GroupSettings, capability: 'user.read' },
+    { key: 'rule', label: lang.rule_setting, hint: '邮件处理规则', icon: Filter, component: RuleSettings, capability: 'user.read' },
+    { key: 'users', label: lang.user_management, hint: '账号与权限管理', icon: User, component: UserManagement, capability: 'user.manage' },
+    { key: 'plugins', label: lang.plugin_settings, hint: '扩展功能管理', icon: Grid, component: PluginSettings, capability: 'plugin.read' },
   ].filter(item => globalStatus.hasCapability(item.capability)))
 
+  const activeSettings = computed(() => settingsMenu.value.find(item => item.key === globalStatus.settingsActiveTab))
+
   return {
     EpMenu,
     ref,
@@ -70,7 +73,8 @@ export function usePage() {
     userInfos,
     isMobile,
     handleResize,
-    settingsMenu
+    settingsMenu,
+    activeSettings
   }
 }
 
diff --git a/frontend/src/views/components/HomeHeader/HomeHeader.vue b/frontend/src/views/components/HomeHeader/HomeHeader.vue
index a3a618b..7610e82 100644
--- a/frontend/src/views/components/HomeHeader/HomeHeader.vue
+++ b/frontend/src/views/components/HomeHeader/HomeHeader.vue
@@ -17,11 +17,51 @@
 
   </div>
 
-  <!-- Settings Drawer -->
-  <el-drawer v-model="globalStatus.settingsDrawerVisible" :size="isMobile ? '100%' : '50vw'" :title="lang.settings" class="settings-drawer" :with-header="true" direction="rtl">
-    <el-tabs v-model="globalStatus.settingsActiveTab" :tab-position="isMobile ? 'top' : 'right'" class="settings-tabs">
-      <el-tab-pane v-for="item in settingsMenu" :key="item.key" :name="item.key" :label="item.label" lazy>
-        <component v-if="globalStatus.settingsDrawerVisible && globalStatus.settingsActiveTab === item.key" :is="item.component" />
+  <!-- 设置抽屉保留右侧导航，一级分类不影响内部标签页。 -->
+  <el-drawer
+    v-model="globalStatus.settingsDrawerVisible"
+    :size="isMobile ? '100%' : 'min(1120px, calc(100vw - 32px))'"
+    :title="lang.settings"
+    class="settings-drawer"
+    :with-header="true"
+    direction="rtl"
+  >
+    <template #header="{ titleId }">
+      <div class="settings-drawer-heading">
+        <h2 :id="titleId">{{ lang.settings }}</h2>
+        <span class="settings-location" aria-live="polite">
+          <span aria-hidden="true">/</span>
+          {{ activeSettings?.label }}
+        </span>
+      </div>
+    </template>
+    <el-tabs
+      v-model="globalStatus.settingsActiveTab"
+      :tab-position="isMobile ? 'top' : 'right'"
+      class="settings-tabs"
+    >
+      <el-tab-pane
+        v-for="item in settingsMenu"
+        :key="item.key"
+        :name="item.key"
+        :label="item.label"
+        lazy
+      >
+        <template #label>
+          <span class="settings-category">
+            <el-icon class="settings-category-icon" aria-hidden="true">
+              <component :is="item.icon" />
+            </el-icon>
+            <span class="settings-category-copy">
+              <span class="settings-category-label">{{ item.label }}</span>
+              <span class="settings-category-hint" aria-hidden="true">{{ item.hint }}</span>
+            </span>
+          </span>
+        </template>
+        <component
+          v-if="globalStatus.settingsDrawerVisible && globalStatus.settingsActiveTab === item.key"
+          :is="item.component"
+        />
       </el-tab-pane>
     </el-tabs>
   </el-drawer>
@@ -38,7 +78,8 @@ const {
   globalStatus,
   isMobile,
   lang,
-  settingsMenu
+  settingsMenu,
+  activeSettings
 } = usePage()
 </script>
 
diff --git a/frontend/src/views/components/PluginSettings/PluginSettings.css b/frontend/src/views/components/PluginSettings/PluginSettings.css
index e040aca..5b5a068 100644
--- a/frontend/src/views/components/PluginSettings/PluginSettings.css
+++ b/frontend/src/views/components/PluginSettings/PluginSettings.css
@@ -29,14 +29,45 @@
   overflow: hidden;
 }
 
-.custom-tabs :deep(.el-tabs__header) {
+.custom-tabs > :deep(.el-tabs__header) {
   margin-bottom: 0;
   background: var(--pm-bg-primary);
-  padding: 0 16px;
+  padding: 8px 12px;
   border-bottom: 1px solid var(--pm-border-color);
 }
 
-.custom-tabs :deep(.el-tabs__content) {
+.custom-tabs > :deep(.el-tabs__header .el-tabs__nav-wrap::after),
+.custom-tabs > :deep(.el-tabs__header .el-tabs__active-bar) {
+  display: none;
+}
+
+.custom-tabs > :deep(.el-tabs__header .el-tabs__item) {
+  height: 38px;
+  margin-right: 6px;
+  padding: 0 14px !important;
+  border-radius: 8px;
+  color: var(--pm-text-secondary);
+  font-size: 13px;
+}
+
+.custom-tabs > :deep(.el-tabs__header .el-tabs__item:hover:not(.is-active)) {
+  color: var(--pm-text-primary);
+  background: var(--pm-bg-hover);
+}
+
+.custom-tabs > :deep(.el-tabs__header .el-tabs__item.is-active) {
+  color: var(--settings-accent, var(--pm-primary-color));
+  background: color-mix(in srgb, var(--pm-primary-color) 10%, var(--pm-bg-secondary));
+  font-weight: 600;
+  box-shadow: inset 0 -2px var(--settings-accent, var(--pm-primary-color));
+}
+
+.custom-tabs > :deep(.el-tabs__header .el-tabs__item:focus-visible) {
+  outline: 2px solid var(--settings-accent, var(--pm-primary-color));
+  outline-offset: -2px;
+}
+
+.custom-tabs > :deep(.el-tabs__content) {
   height: 100%;
 }
 
diff --git a/frontend/src/views/components/SecuritySettings/SecuritySettings.css b/frontend/src/views/components/SecuritySettings/SecuritySettings.css
index af573c7..0b7d13a 100644
--- a/frontend/src/views/components/SecuritySettings/SecuritySettings.css
+++ b/frontend/src/views/components/SecuritySettings/SecuritySettings.css
@@ -1,44 +1,18 @@
 .settings-card { padding: 0; }
 .security-workspace {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 176px;
+  grid-template-columns: minmax(0, 1fr) 152px;
   grid-template-areas: "main submenu";
   align-items: start;
   gap: 20px;
 }
-.security-submenu {
-  grid-area: submenu;
-  position: sticky;
-  top: 0;
-  display: grid;
-  gap: 6px;
-  padding: 8px;
-  border: 1px solid var(--pm-border-color);
-  border-radius: var(--pm-radius-lg);
-  background: var(--pm-bg-secondary);
-}
-.security-submenu-item {
-  width: 100%;
-  padding: 12px 14px;
-  color: var(--pm-text-secondary);
-  text-align: left;
-  font: inherit;
-  border: 0;
-  border-radius: var(--pm-radius-sm);
-  background: transparent;
-  cursor: pointer;
-  transition: color .2s ease, background-color .2s ease;
-}
-.security-submenu-item:hover,
-.security-submenu-item.active {
-  color: var(--pm-primary-color);
-  background: var(--el-color-primary-light-9);
-}
-.security-submenu-item.active { font-weight: 600; }
 .security-main {
   grid-area: main;
   min-width: 0;
 }
+.security-main > .settings-divider:first-child {
+  display: none;
+}
 .settings-header { margin-bottom: 24px; }
 .settings-header h3 { font-size: 18px; font-weight: 600; color: var(--pm-text-primary); margin: 0 0 8px; }
 .settings-desc { font-size: 14px; color: var(--pm-text-secondary); margin: 0; }
@@ -59,7 +33,7 @@
 .credential-info span { color: var(--pm-text-secondary); font-size: 13px; }
 .credential-warning { width: 100%; color: #b45309 !important; font-size: 13px; }
 .credential-actions { display: flex; flex: none; gap: 8px; }
-@media (max-width: 640px) {
+@container settings-content (max-width: 560px) {
   .security-workspace {
     grid-template-columns: minmax(0, 1fr);
     grid-template-areas:
@@ -67,18 +41,6 @@
       "main";
     gap: 16px;
   }
-  .security-submenu {
-    position: static;
-    display: flex;
-    gap: 6px;
-    overflow-x: auto;
-    padding: 6px;
-  }
-  .security-submenu-item {
-    flex: 0 0 auto;
-    width: auto;
-    white-space: nowrap;
-  }
   .security-key-header, .credential-item { flex-direction: column; align-items: stretch; }
   .credential-actions { width: 100%; }
   .credential-actions .el-button { flex: 1; }
diff --git a/frontend/src/views/components/SecuritySettings/SecuritySettings.vue b/frontend/src/views/components/SecuritySettings/SecuritySettings.vue
index 4e7cff2..4f5029d 100644
--- a/frontend/src/views/components/SecuritySettings/SecuritySettings.vue
+++ b/frontend/src/views/components/SecuritySettings/SecuritySettings.vue
@@ -1,19 +1,12 @@
 <template>
   <div class="settings-card security-settings-card" v-loading="securityLoading">
     <div class="security-workspace">
-      <nav class="security-submenu" aria-label="安全设置">
-        <button
-          v-for="item in sectionOptions"
-          :key="item.value"
-          type="button"
-          class="security-submenu-item"
-          :class="{ active: selectedSection === item.value }"
-          :aria-current="selectedSection === item.value ? 'page' : undefined"
-          @click="selectSection(item.value)"
-        >
-          {{ item.label }}
-        </button>
-      </nav>
+      <SettingsSubmenu
+        title="安全设置"
+        :items="sectionOptions"
+        :model-value="selectedSection"
+        @select="selectSection"
+      />
 
       <div class="security-main">
     <section v-if="selectedSection === 'password' && !isSuperAdmin" class="security-section">
@@ -101,6 +94,7 @@
 
 <script setup>
 import { usePage } from './SecuritySettings.js'
+import SettingsSubmenu from '../SettingsSubmenu/SettingsSubmenu.vue'
 
 const {
   lang, isSuperAdmin, supported, webAuthnEnabled, sectionOptions, selectedSection, selectSection,
diff --git a/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.css b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.css
new file mode 100644
index 0000000..63870e6
--- /dev/null
+++ b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.css
@@ -0,0 +1,120 @@
+.settings-submenu {
+  grid-area: submenu;
+  position: sticky;
+  top: 0;
+  min-width: 0;
+  padding: 4px 0 4px 14px;
+  border-left: 1px solid var(--pm-border-color);
+  --submenu-accent: var(--pm-primary-color);
+}
+
+.settings-submenu-heading {
+  display: grid;
+  gap: 5px;
+  padding: 4px 10px 16px;
+}
+
+.settings-submenu-caption {
+  color: var(--pm-text-muted);
+  font-size: 11px;
+  line-height: 1.5;
+}
+
+.settings-submenu-heading strong {
+  color: var(--pm-text-secondary);
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.settings-submenu-list {
+  display: grid;
+  gap: 4px;
+}
+
+.settings-submenu-item {
+  position: relative;
+  width: 100%;
+  min-height: 40px;
+  padding: 10px 12px;
+  border: 0;
+  border-radius: 8px;
+  background: transparent;
+  color: var(--pm-text-secondary);
+  font: inherit;
+  font-size: 13px;
+  line-height: 1.5;
+  text-align: left;
+  cursor: pointer;
+  transition: color .18s ease, background-color .18s ease;
+}
+
+.settings-submenu-item:hover:not(.active) {
+  color: var(--pm-text-primary);
+  background: var(--pm-bg-hover);
+}
+
+.settings-submenu-item.active {
+  color: var(--submenu-accent);
+  font-weight: 600;
+  background: color-mix(in srgb, var(--submenu-accent) 10%, var(--pm-bg-secondary));
+}
+
+.settings-submenu-item.active::before {
+  content: '';
+  position: absolute;
+  top: 12px;
+  bottom: 12px;
+  left: -15px;
+  width: 3px;
+  border-radius: 3px;
+  background: var(--submenu-accent);
+}
+
+.settings-submenu-item:focus-visible {
+  outline: 2px solid var(--submenu-accent);
+  outline-offset: -2px;
+}
+
+@media (prefers-color-scheme: dark) {
+  .settings-submenu {
+    --submenu-accent: var(--pm-primary-light-3);
+  }
+}
+
+@container settings-content (max-width: 560px) {
+  .settings-submenu {
+    position: static;
+    padding: 12px;
+    border: 1px solid var(--pm-border-color);
+    border-radius: 12px;
+    background: var(--pm-bg-primary);
+  }
+
+  .settings-submenu-heading {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    padding: 0 4px 8px;
+  }
+
+  .settings-submenu-list {
+    display: flex;
+    overflow-x: auto;
+    padding: 2px;
+  }
+
+  .settings-submenu-item {
+    flex: 0 0 auto;
+    width: auto;
+    white-space: nowrap;
+  }
+
+  .settings-submenu-item.active::before {
+    top: auto;
+    bottom: 2px;
+    left: 12px;
+    right: 12px;
+    width: auto;
+    height: 2px;
+  }
+}
diff --git a/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.js b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.js
new file mode 100644
index 0000000..730f1ee
--- /dev/null
+++ b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.js
@@ -0,0 +1,16 @@
+export const submenuProps = {
+  title: { type: String, required: true },
+  caption: { type: String, default: '设置选项' },
+  items: { type: Array, required: true },
+  modelValue: { type: String, required: true }
+}
+
+export function useSubmenu(props, emit) {
+  function select(value) {
+    if (value !== props.modelValue && props.items.some(item => item.value === value)) {
+      emit('select', value)
+    }
+  }
+
+  return { select }
+}
diff --git a/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.vue b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.vue
new file mode 100644
index 0000000..0476d20
--- /dev/null
+++ b/frontend/src/views/components/SettingsSubmenu/SettingsSubmenu.vue
@@ -0,0 +1,31 @@
+<template>
+  <nav class="settings-submenu" :aria-label="title">
+    <div class="settings-submenu-heading">
+      <span class="settings-submenu-caption">{{ caption }}</span>
+      <strong>{{ title }}</strong>
+    </div>
+    <div class="settings-submenu-list">
+      <button
+        v-for="item in items"
+        :key="item.value"
+        type="button"
+        class="settings-submenu-item"
+        :class="{ active: modelValue === item.value }"
+        :aria-current="modelValue === item.value ? 'page' : undefined"
+        @click="select(item.value)"
+      >
+        <span>{{ item.label }}</span>
+      </button>
+    </div>
+  </nav>
+</template>
+
+<script setup>
+import { submenuProps, useSubmenu } from './SettingsSubmenu.js'
+
+const props = defineProps(submenuProps)
+const emit = defineEmits(['select'])
+const { select } = useSubmenu(props, emit)
+</script>
+
+<style scoped src="./SettingsSubmenu.css"></style>
diff --git a/test/frontend/settings-menu.test.mjs b/test/frontend/settings-menu.test.mjs
new file mode 100644
index 0000000..0b22c02
--- /dev/null
+++ b/test/frontend/settings-menu.test.mjs
@@ -0,0 +1,106 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import { readFileSync } from 'node:fs'
+import { createRequire } from 'node:module'
+import { compileFunction } from 'node:vm'
+import { computed, reactive, ref } from './vue.mjs'
+
+const require = createRequire(new URL('../../frontend/package.json', import.meta.url))
+const { parse, compileScript, compileStyle } = require('@vue/compiler-sfc')
+const root = new URL('../../frontend/src/views/components/', import.meta.url)
+const read = path => readFileSync(new URL(path, root), 'utf8')
+const useSubmenu = compileFunction(
+  read('SettingsSubmenu/SettingsSubmenu.js').replaceAll('export ', '') + '\nreturn useSubmenu'
+)()
+
+test('二级菜单只发送可见且尚未选中的选项，不提前修改父组件状态', () => {
+  const props = reactive({
+    modelValue: 'question',
+    items: [{ value: 'question' }, { value: 'external-email' }]
+  })
+  const events = []
+  const { select } = useSubmenu(props, (...event) => events.push(event))
+  select('password')
+  select('question')
+  select('external-email')
+  assert.deepEqual(events, [['select', 'external-email']])
+  assert.equal(props.modelValue, 'question')
+  props.modelValue = 'external-email'
+  select('external-email')
+  props.items = [{ value: 'external-email' }]
+  select('question')
+  assert.equal(events.length, 1)
+})
+
+test('一级菜单保留能力过滤和当前分类标题联动', () => {
+  const source = read('HomeHeader/HomeHeader.js')
+  const names = [
+    'EpMenu', 'Lock', 'Connection', 'Setting', 'FolderOpened', 'Filter', 'User', 'Grid',
+    'SecuritySettings', 'ThirdPartyAuthorization', 'ConfigSettings', 'GroupSettings',
+    'RuleSettings', 'UserManagement', 'PluginSettings', 'BrandLogo'
+  ]
+  const createPage = compileFunction(
+    source.replace(/^import .*$/gm, '').replace('export function usePage', 'function usePage')
+      .replace(/export \{[\s\S]*?\}\s*$/, '') + '\nreturn usePage()',
+    ['computed', 'ref', 'onMounted', 'onUnmounted', 'window', 'useGlobalStatusStore', 'lang', ...names]
+  )
+  const capabilities = reactive(new Set(['password.change_own', 'plugin.write_own']))
+  const store = reactive({
+    settingsActiveTab: 'security',
+    hasCapability: value => capabilities.has(value)
+  })
+  const page = createPage(computed, ref, () => {}, () => {}, { innerWidth: 1440 }, () => store,
+    { security: '安全' }, ...names.map(name => ({ name })))
+  assert.deepEqual(page.settingsMenu.value.map(item => item.key), ['security', 'third-party'])
+  assert.equal(page.activeSettings.value.label, '安全')
+  capabilities.add('config.read')
+  store.settingsActiveTab = 'config'
+  assert.equal(page.activeSettings.value.label, '配置管理')
+  assert.equal(page.settingsMenu.value.length, 3)
+  assert.ok(page.settingsMenu.value.every(item => item.icon && item.hint))
+  capabilities.delete('config.read')
+  assert.equal(page.activeSettings.value, undefined)
+})
+
+test('菜单模板可编译并保留按钮、当前项语义及原有选区处理器', () => {
+  for (const name of ['HomeHeader', 'SettingsSubmenu', 'SecuritySettings', 'ConfigSettings']) {
+    const source = read(`${name}/${name}.vue`)
+    const { descriptor, errors } = parse(source)
+    assert.deepEqual(errors, [])
+    assert.doesNotThrow(() => compileScript(descriptor, { id: 'settings-test', inlineTemplate: true }))
+  }
+  const submenu = read('SettingsSubmenu/SettingsSubmenu.vue')
+  assert.match(submenu, /<button[\s\S]*type="button"/)
+  assert.match(submenu, /:aria-current="modelValue === item.value \? 'page' : undefined"/)
+  for (const name of ['SecuritySettings', 'ConfigSettings']) {
+    assert.match(read(`${name}/${name}.vue`), /<SettingsSubmenu[\s\S]*@select="selectSection"/)
+  }
+  assert.match(read('HomeHeader/HomeHeader.vue'), /globalStatus.settingsDrawerVisible && globalStatus.settingsActiveTab === item.key/)
+})
+
+test('一级标签样式不会穿透到插件内部，抽屉样式可命中传送后的节点', () => {
+  const { code, errors } = compileStyle({
+    source: read('HomeHeader/HomeHeader.css'), id: 'data-v-settings-test', scoped: true
+  })
+  assert.deepEqual(errors, [])
+  assert.match(code, /\.settings-tabs\[data-v-settings-test\]\s*>\s*\.el-tabs__header/)
+  assert.doesNotMatch(code, /\.settings-tabs\[data-v-settings-test\]\s+\.el-tabs__header/)
+  assert.match(code, /\.settings-drawer > \.el-drawer__body\s*\{/)
+  assert.match(code, /container: settings-content \/ inline-size/)
+})
+
+test('两级菜单分别提供选中、非选中悬停和键盘焦点样式', () => {
+  for (const path of [
+    'HomeHeader/HomeHeader.css',
+    'SettingsSubmenu/SettingsSubmenu.css',
+    'PluginSettings/PluginSettings.css'
+  ]) {
+    const source = read(path)
+    assert.match(source, /:hover:not\(/)
+    assert.match(source, /:focus-visible/)
+    assert.match(source, /(?:\.is-active|\.active)/)
+  }
+  for (const name of ['SecuritySettings', 'ConfigSettings', 'SettingsSubmenu']) {
+    assert.match(read(`${name}/${name}.css`), /@container settings-content \(max-width: 560px\)/)
+  }
+})