diff --git a/src/App.vue b/src/App.vue
index 87f94f9a..8c71ffa1 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -68,9 +68,7 @@ const activeImageIndex = ref(0)
 const previousImageIndex = ref<number | null>(null)
 const isTransparentTheme = computed(() => globalTheme.name.value === 'transparent')
 const isLoginWallpaperRoute = computed(() => !isLogin.value && route.path === LOGIN_WALLPAPER_ROUTE)
-const shouldUseTransparentBackgroundTreatment = computed(
-  () => (Boolean(isLogin.value) && isTransparentTheme.value) || isLoginWallpaperRoute.value,
-)
+const shouldUseTransparentBackgroundTreatment = computed(() => Boolean(isLogin.value) && isTransparentTheme.value)
 const shouldLoadBackgroundImages = computed(
   () => isLoginWallpaperRoute.value || (Boolean(isLogin.value) && isTransparentTheme.value),
 )
@@ -89,6 +87,7 @@ let backgroundRequestController: AbortController | null = null
 let backgroundCrossfadeTimer: number | null = null
 let authenticatedStateTimer: number | null = null
 
+// 读取并同步透明主题背景设置到根组件响应式状态。
 function applyTransparentBackgroundSettings() {
   const settings = applyStoredTransparencySettings()
 
@@ -96,6 +95,7 @@ function applyTransparentBackgroundSettings() {
   transparencyGlassQuality.value = settings.glassQuality
 }
 
+// 响应透明主题设置变更事件，刷新背景模糊和玻璃质量。
 function handleTransparencySettingsChanged(event: Event) {
   const { backgroundBlur, glassQuality } = (event as CustomEvent<TransparencySettings>).detail
 
@@ -143,6 +143,7 @@ function updateHtmlThemeAttribute(themeName: string) {
   syncRootLaunchPalette()
 }
 
+// 从本地存储重新同步主题偏好、DOM 主题属性和相关外观配置。
 function syncThemePreferenceFromStorage() {
   themeValue = localStorage.getItem('theme') || 'auto'
 
@@ -166,22 +167,26 @@ function syncThemePreferenceFromStorage() {
     })
 }
 
+// 系统配色变化时，在自动主题模式下刷新当前实际主题。
 function handleSystemThemeChange() {
   if ((localStorage.getItem('theme') || 'auto') === 'auto') {
     syncThemePreferenceFromStorage()
   }
 }
 
+// 页面重新可见时同步主题，修复后台期间设置被外部修改后的外观漂移。
 function handleVisibilityThemeSync() {
   if (document.visibilityState === 'visible') {
     syncThemePreferenceFromStorage()
   }
 }
 
+// 页面从缓存或重新聚焦恢复时刷新主题偏好。
 function handlePageShowThemeSync() {
   syncThemePreferenceFromStorage()
 }
 
+// 清理背景图交叉淡入淡出定时器。
 function clearBackgroundCrossfadeTimer() {
   if (backgroundCrossfadeTimer) {
     window.clearTimeout(backgroundCrossfadeTimer)
@@ -189,6 +194,7 @@ function clearBackgroundCrossfadeTimer() {
   }
 }
 
+// 重置背景图交叉淡入淡出状态。
 function resetBackgroundCrossfade() {
   clearBackgroundCrossfadeTimer()
   previousImageIndex.value = null
@@ -256,6 +262,7 @@ function startBackgroundRotation() {
   }
 }
 
+// 停止登录页或透明主题背景图加载、重试和轮播。
 function stopBackgroundLoading() {
   backgroundRequestController?.abort()
   backgroundRequestController = null
@@ -269,6 +276,7 @@ function stopBackgroundLoading() {
   removeBackgroundTimer('background-rotation')
 }
 
+// 初始化登录后的全局设置和用户设置状态。
 async function initializeAuthenticatedState() {
   if (!isLogin.value) return
 
@@ -281,6 +289,7 @@ async function initializeAuthenticatedState() {
   }
 }
 
+// 延迟初始化登录态数据，避开登录成功后的即时路由跳转窗口。
 function scheduleAuthenticatedStateInitialization() {
   if (authenticatedStateTimer) {
     window.clearTimeout(authenticatedStateTimer)
diff --git a/src/pages/login.vue b/src/pages/login.vue
index e660abaf..c85f02da 100644
--- a/src/pages/login.vue
+++ b/src/pages/login.vue
@@ -8,7 +8,6 @@ import logo from '@images/logo.png'
 import { bufferToBase64Url, base64UrlToUint8Array, urlBase64ToUint8Array } from '@/@core/utils/navigator'
 import { SUPPORTED_LOCALES, SupportedLocale } from '@/types/i18n'
 import { getCurrentLocale, setI18nLanguage } from '@/plugins/i18n'
-import { useTheme } from 'vuetify'
 import { getNavMenus } from '@/router/i18n-menu'
 import { buildUserPermissionContext, filterMenusByPermission } from '@/utils/permission'
 import type { ApiResponse } from '@/api/types'
@@ -65,14 +64,6 @@ const langMenu = ref(false)
 // 当前语言
 const currentLocale = ref(getCurrentLocale())
 
-// 当前主题
-const vuetifyTheme = useTheme()
-
-// 判断是否为透明主题
-const isTransparentTheme = computed(() => {
-  return vuetifyTheme.name.value === 'transparent'
-})
-
 // 可用的语言列表
 const locales = Object.values(SUPPORTED_LOCALES)
 
@@ -279,6 +270,7 @@ interface PassKeyFinishResponse {
   wizard: boolean
 }
 
+// 执行 PassKey WebAuthn 认证并返回登录完成信息。
 async function authenticateWithPassKey(options: PassKeyAuthOptions = {}): Promise<PassKeyFinishResponse> {
   const { username, isConditional = false, signal } = options
 
@@ -734,8 +726,7 @@ onUnmounted(() => {
     <!-- 登录表单 -->
     <div v-if="!mfaDialog" class="auth-wrapper d-flex align-center justify-center">
       <VCard
-        class="auth-card login-card pa-7 pa-sm-9 w-full h-full login-card--enter"
-        :class="{ 'glass-effect': !isTransparentTheme }"
+        class="auth-card login-card glass-effect pa-7 pa-sm-9 w-full h-full login-card--enter"
         max-width="24rem"
         flat
       >
@@ -997,7 +988,6 @@ onUnmounted(() => {
   z-index: 3;
   border: 1px solid rgba(var(--v-border-color), calc(var(--v-border-opacity) * 0.6));
   border-radius: 999px;
-  backdrop-filter: blur(12px) saturate(140%);
   background: rgba(var(--v-theme-surface), 0.6);
   inset-block-start: calc(env(safe-area-inset-top, 0px) + 16px);
   inset-inline-end: calc(env(safe-area-inset-right, 0px) + 16px);
@@ -1047,7 +1037,7 @@ onUnmounted(() => {
   }
 }
 
-/* 非透明主题：磨砂玻璃卡片 */
+/* 登录卡片自身承载固定磨砂效果，避免跟随透明主题设置变化。 */
 .glass-effect {
   backdrop-filter: blur(28px) saturate(170%) !important;
   background: rgba(var(--v-theme-surface), 0.75) !important;
diff --git a/src/router/i18n-menu.ts b/src/router/i18n-menu.ts
index 8fb1e8f7..92454ef6 100644
--- a/src/router/i18n-menu.ts
+++ b/src/router/i18n-menu.ts
@@ -115,7 +115,7 @@ export function getNavMenus(t: Composer['t']): NavMenu[] {
     },
     {
       title: t('navItems.pluginManager'),
-      icon: 'mdi-apps',
+      icon: 'mdi-puzzle-outline',
       to: '/plugins',
       header: t('menu.system'),
       admin: true,