diff --git a/src/@core/scss/libs/perfect-scrollbar.scss b/src/@core/scss/libs/perfect-scrollbar.scss
index 27e0f25b..38110726 100644
--- a/src/@core/scss/libs/perfect-scrollbar.scss
+++ b/src/@core/scss/libs/perfect-scrollbar.scss
@@ -34,10 +34,15 @@ $ps-track-size: 0.5rem;
   inline-size: $ps-hover-size;
 }
 
-// fix bug
-@media(hover: none) {
-  .ps > .ps__rail-x,
-  .ps > .ps__rail-y {
-    opacity: 0.6;
-  }
-} 
+// 滚动条只反馈实际滚动状态，鼠标经过容器或键盘聚焦不应让轨道常驻。
+.ps:hover > .ps__rail-x,
+.ps:hover > .ps__rail-y,
+.ps--focus > .ps__rail-x,
+.ps--focus > .ps__rail-y {
+  opacity: 0 !important;
+}
+
+.ps.ps--scrolling-x > .ps__rail-x,
+.ps.ps--scrolling-y > .ps__rail-y {
+  opacity: 0.6 !important;
+}
diff --git a/src/App.vue b/src/App.vue
index 7f3b8794..3506e848 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -11,7 +11,7 @@ import { globalLoadingStateManager } from '@/utils/loadingStateManager'
 import { addBackgroundTimer, removeBackgroundTimer } from '@/utils/backgroundManager'
 import PWAInstallPrompt from '@/components/pwa/PWAInstallPrompt.vue'
 import SharedDialogHost from '@/components/dialog/SharedDialogHost.vue'
-import { applyStoredThemeCustomizerAppearance } from '@/composables/useThemeCustomizer'
+import { applyStoredThemeCustomizerAppearance, useEffectiveGlassSettings } from '@/composables/useThemeCustomizer'
 import {
   applyStoredTransparencySettings,
   TRANSPARENCY_SETTINGS_CHANGED_EVENT,
@@ -22,15 +22,14 @@ import { completeLaunchLoading } from '@/composables/useLaunchLoading'
 import { usePWA } from '@/composables/usePWA'
 import { themeManager } from '@/utils/themeManager'
 import { applyDocumentThemeChrome, resolveThemeName } from '@/utils/themePalette'
+import { getDisplayImageUrl } from '@/utils/imageUtils'
 import { configureApexChartsTheme } from '@/utils/apexCharts'
-import {
-  useGlobalOfflineStatus,
-  type ConnectionFailureReason,
-} from '@/composables/useOfflineStatus'
+import { useGlobalOfflineStatus, type ConnectionFailureReason } from '@/composables/useOfflineStatus'
 
 const LOGIN_WALLPAPER_ROUTE = '/login'
 const BACKGROUND_CROSSFADE_DURATION_MS = 1500
 const WINDOW_BLUR_RENDER_THROTTLE_DELAY_MS = 180_000
+const MEDIA_DENSE_OPTICAL_DEFER_MS = 1_600
 
 // 生效主题
 const vuetifyTheme = useTheme()
@@ -59,6 +58,7 @@ setI18nLanguage(localeValue as SupportedLocale)
 const authStore = useAuthStore()
 const isLogin = computed(() => authStore.token)
 const route = useRoute()
+const router = useRouter()
 const { initializePWA } = usePWA()
 const offlineStatus = useGlobalOfflineStatus()
 
@@ -72,8 +72,14 @@ const loginStateKey = computed(() => (isLogin.value ? 'logged-in' : 'logged-out'
 const backgroundImages = ref<string[]>([])
 const activeImageIndex = ref(0)
 const previousImageIndex = ref<number | null>(null)
+const isBackgroundCrossfading = ref(false)
+const isRenderThrottled = ref(document.visibilityState === 'hidden')
 const isTransparentTheme = computed(() => globalTheme.name.value === 'transparent')
 const isGlassTheme = computed(() => globalTheme.name.value === 'glass')
+const effectiveGlassSettings = useEffectiveGlassSettings()
+const isInitialRouteReady = ref(false)
+const isGlassOpticalLayerDeferred = ref(true)
+let glassOpticalLayerDeferTimer: number | null = null
 const isBackdropTheme = computed(() => isTransparentTheme.value || isGlassTheme.value)
 const isLoginWallpaperRoute = computed(() => !isLogin.value && route.path === LOGIN_WALLPAPER_ROUTE)
 const shouldUseTransparentBackgroundTreatment = computed(() => Boolean(isLogin.value) && isTransparentTheme.value)
@@ -81,6 +87,23 @@ const shouldUseGlassBackgroundTreatment = computed(() => Boolean(isLogin.value)
 const shouldLoadBackgroundImages = computed(
   () => isLoginWallpaperRoute.value || (Boolean(isLogin.value) && isBackdropTheme.value),
 )
+const activeBackgroundImage = computed(() => backgroundImages.value[activeImageIndex.value] ?? '')
+// 登录页的光学层只绘制程序化焦散，不会读取该跨域壁纸；登录后才通过同源缓存采样纹理。
+const activeOpticalBackgroundImage = computed(() =>
+  getDisplayImageUrl(activeBackgroundImage.value, Boolean(isLogin.value)),
+)
+const appWrapperStyle = computed(() => ({
+  '--login-wallpaper-image': activeBackgroundImage.value ? `url("${activeBackgroundImage.value}")` : 'none',
+}))
+const shouldRenderGlassOpticalLayer = computed(
+  () =>
+    isGlassTheme.value &&
+    effectiveGlassSettings.value.glassQuality !== 'css' &&
+    !isGlassOpticalLayerDeferred.value &&
+    !isRenderThrottled.value &&
+    Boolean(activeBackgroundImage.value),
+)
+const GlassOpticalLayer = defineAsyncComponent(() => import('@/components/theme/GlassOpticalLayer.vue'))
 const transparentBackgroundBlur = ref(16)
 const transparencyGlassQuality = ref<TransparencyGlassQuality>(
   localStorage.getItem('transparency-glass-quality') === 'realtime' ? 'realtime' : 'lightweight',
@@ -91,7 +114,6 @@ const shouldRenderGlobalBlurLayer = computed(
     transparentBackgroundBlur.value > 0 &&
     transparencyGlassQuality.value === 'realtime',
 )
-const isRenderThrottled = ref(document.visibilityState === 'hidden')
 let backgroundRetryTimer: number | null = null
 let backgroundRequestController: AbortController | null = null
 let backgroundCrossfadeTimer: number | null = null
@@ -116,6 +138,39 @@ function handleTransparencySettingsChanged(event: Event) {
 
 applyTransparentBackgroundSettings()
 
+/** 推荐页高质量光学层让首屏海报优先完成解码与合成。 */
+watch(
+  () => [route.fullPath, effectiveGlassSettings.value.glassQuality, isInitialRouteReady.value] as const,
+  ([, quality, routeReady]) => {
+    if (glassOpticalLayerDeferTimer !== null) {
+      window.clearTimeout(glassOpticalLayerDeferTimer)
+      glassOpticalLayerDeferTimer = null
+    }
+
+    // 首次导航完成前 route 仍可能是重定向来源，禁止 renderer 按错误页面短暂挂载。
+    if (!routeReady) {
+      isGlassOpticalLayerDeferred.value = true
+      return
+    }
+
+    if (route.path !== '/recommend' || quality !== 'high') {
+      isGlassOpticalLayerDeferred.value = false
+      return
+    }
+
+    isGlassOpticalLayerDeferred.value = true
+    glassOpticalLayerDeferTimer = window.setTimeout(() => {
+      isGlassOpticalLayerDeferred.value = false
+      glassOpticalLayerDeferTimer = null
+    }, MEDIA_DENSE_OPTICAL_DEFER_MS)
+  },
+  { immediate: true },
+)
+
+void router.isReady().then(() => {
+  isInitialRouteReady.value = true
+})
+
 function clearWindowBlurRenderThrottleTimer() {
   if (windowBlurRenderThrottleTimer) {
     window.clearTimeout(windowBlurRenderThrottleTimer)
@@ -212,13 +267,10 @@ async function probeServerConnection(showChecking = false): Promise<boolean> {
   const successSequenceAtProbeStart = offlineStatus.serverSuccessSequence.value
   const probePromise = (async () => {
     try {
-      await api.get(
-        'system/ping',
-        {
-          skipConnectionTracking: true,
-          timeout: SERVER_PROBE_TIMEOUT_MS,
-        } as ConnectionAwareRequestConfig,
-      )
+      await api.get('system/ping', {
+        skipConnectionTracking: true,
+        timeout: SERVER_PROBE_TIMEOUT_MS,
+      } as ConnectionAwareRequestConfig)
       connectionProbeFailures = 0
       return true
     } catch (error) {
@@ -261,9 +313,12 @@ function startHeartbeat() {
 
   void probeServerConnection()
 
-  heartbeatInterval = window.setInterval(async () => {
-    if (isLogin.value) await probeServerConnection()
-  }, 5 * 60 * 1000)
+  heartbeatInterval = window.setInterval(
+    async () => {
+      if (isLogin.value) await probeServerConnection()
+    },
+    5 * 60 * 1000,
+  )
 }
 
 /** 停止心跳和等待中的自动重连任务。 */
@@ -371,6 +426,7 @@ function clearBackgroundCrossfadeTimer() {
 function resetBackgroundCrossfade() {
   clearBackgroundCrossfadeTimer()
   previousImageIndex.value = null
+  isBackgroundCrossfading.value = false
 }
 
 // 切换期保留上一张背景的渲染状态，避免图片合成层重建时露出透明底。
@@ -379,9 +435,11 @@ function activateBackgroundImage(nextIndex: number) {
 
   clearBackgroundCrossfadeTimer()
   previousImageIndex.value = activeImageIndex.value
+  isBackgroundCrossfading.value = true
   activeImageIndex.value = nextIndex
   backgroundCrossfadeTimer = window.setTimeout(() => {
     previousImageIndex.value = null
+    isBackgroundCrossfading.value = false
     backgroundCrossfadeTimer = null
   }, BACKGROUND_CROSSFADE_DURATION_MS)
 }
@@ -633,6 +691,7 @@ onMounted(async () => {
 })
 
 onUnmounted(() => {
+  if (glassOpticalLayerDeferTimer !== null) window.clearTimeout(glassOpticalLayerDeferTimer)
   // 清除背景轮换定时器
   stopBackgroundLoading()
   if (authenticatedStateTimer) {
@@ -654,7 +713,14 @@ onUnmounted(() => {
 </script>
 
 <template>
-  <div class="app-wrapper" :class="{ 'app-wrapper--render-throttled': isRenderThrottled }">
+  <div
+    class="app-wrapper"
+    :class="{
+      'app-wrapper--background-transition': isBackgroundCrossfading,
+      'app-wrapper--render-throttled': isRenderThrottled,
+    }"
+    :style="appWrapperStyle"
+  >
     <!-- 登录页、透明主题和玻璃主题共用动态壁纸场景。 -->
     <div
       v-if="backgroundImages.length > 0 && (isBackdropTheme || !isLogin)"
@@ -676,6 +742,15 @@ onUnmounted(() => {
       <!-- 全局磨砂层 -->
       <div v-if="shouldRenderGlobalBlurLayer" class="global-blur-layer"></div>
     </div>
+    <GlassOpticalLayer
+      v-if="shouldRenderGlassOpticalLayer"
+      :appearance="effectiveGlassSettings.glassAppearance"
+      :class="{ 'glass-optical-layer--background-transition': isBackgroundCrossfading }"
+      :quality="effectiveGlassSettings.glassQuality === 'high' ? 'high' : 'balanced'"
+      :route-key="route.fullPath"
+      :tint-color="globalTheme.current.value.colors.primary"
+      :wallpaper-url="activeOpticalBackgroundImage"
+    />
     <!-- 页面内容 -->
     <VApp :class="{ 'app-shell--login-wallpaper': isLoginWallpaperRoute }">
       <RouterView />
@@ -743,19 +818,48 @@ onUnmounted(() => {
 
 .background-container.is-glass-theme .background-image.active,
 .background-container.is-glass-theme .background-image.previous {
-  filter: brightness(0.82) saturate(0.9);
+  filter: brightness(0.86) saturate(0.95) contrast(1.02);
 }
 
 .background-container.is-glass-theme .background-image.active {
-  opacity: 0.92;
+  opacity: 0.94;
 }
 
-// 玻璃主题用冷色暗幕压低壁纸对比度，避免轻阴影表面与背景直接冲突。
 .background-container.is-glass-theme .background-image.active::after,
 .background-container.is-glass-theme .background-image.previous::after {
   background:
-    linear-gradient(rgba(6, 10, 19, 30%) 0%, rgba(6, 10, 19, 58%) 100%),
-    rgba(11, 19, 34, 10%);
+    radial-gradient(circle at 50% 18%, transparent 24%, rgba(6, 10, 19, 16%) 100%),
+    linear-gradient(rgba(6, 10, 19, 14%) 0%, rgba(6, 10, 19, 40%) 100%);
+}
+
+html[data-glass-appearance='tinted'] .background-container.is-glass-theme .background-image.active,
+html[data-glass-appearance='tinted'] .background-container.is-glass-theme .background-image.previous {
+  filter: brightness(0.85) saturate(0.97) contrast(1.02);
+}
+
+html[data-glass-appearance='tinted'] .background-container.is-glass-theme .background-image.active {
+  opacity: 0.93;
+}
+
+html[data-glass-appearance='tinted'] .background-container.is-glass-theme .background-image.active::after,
+html[data-glass-appearance='tinted'] .background-container.is-glass-theme .background-image.previous::after {
+  background:
+    radial-gradient(circle at 50% 18%, transparent 22%, rgba(6, 10, 19, 18%) 100%),
+    linear-gradient(rgba(6, 10, 19, 14%) 0%, rgba(6, 10, 19, 42%) 100%), rgba(var(--v-theme-primary), 3%);
+}
+
+html[data-glass-appearance='frosted'] .background-container.is-glass-theme .background-image.active,
+html[data-glass-appearance='frosted'] .background-container.is-glass-theme .background-image.previous {
+  filter: brightness(0.82) saturate(0.9);
+}
+
+html[data-glass-appearance='frosted'] .background-container.is-glass-theme .background-image.active {
+  opacity: 0.92;
+}
+
+html[data-glass-appearance='frosted'] .background-container.is-glass-theme .background-image.active::after,
+html[data-glass-appearance='frosted'] .background-container.is-glass-theme .background-image.previous::after {
+  background: linear-gradient(rgba(6, 10, 19, 30%) 0%, rgba(6, 10, 19, 58%) 100%), rgba(11, 19, 34, 10%);
 }
 
 .background-container.is-transparent-glass-lightweight .background-image.active,
@@ -766,9 +870,7 @@ onUnmounted(() => {
 
 .background-container.is-transparent-glass-lightweight .background-image.active::after,
 .background-container.is-transparent-glass-lightweight .background-image.previous::after {
-  background:
-    linear-gradient(rgba(0, 0, 0, 30%) 0%, rgba(0, 0, 0, 60%) 100%),
-    rgba(128, 128, 128, 30%);
+  background: linear-gradient(rgba(0, 0, 0, 30%) 0%, rgba(0, 0, 0, 60%) 100%), rgba(128, 128, 128, 30%);
 }
 
 /* 全局磨砂层 */
diff --git a/src/components/cards/__tests__/MediaCard.spec.ts b/src/components/cards/__tests__/MediaCard.spec.ts
index 25233cf6..8d5d38f3 100644
--- a/src/components/cards/__tests__/MediaCard.spec.ts
+++ b/src/components/cards/__tests__/MediaCard.spec.ts
@@ -548,6 +548,34 @@ describe('MediaCard', () => {
     )
   })
 
+  it('renders the AniList source badge after the poster loads', async () => {
+    const media = createMediaInfo({
+      anilist_id: 154588,
+      poster_path: '/original/anilist.jpg',
+      source: 'anilist',
+      tmdb_id: undefined,
+      type: '电视剧',
+    })
+    const VImgStub = defineComponent({
+      name: 'VImg',
+      emits: ['load'],
+      props: { src: String },
+      setup(_props, { emit, slots }) {
+        return () =>
+          h('div', [h('button', { 'aria-label': '图片加载成功', onClick: () => emit('load') }), slots.default?.()])
+      },
+    })
+    const { container } = await renderWithProviders(MediaCard, {
+      props: { media, width: '9rem' },
+      initialState: { user: { superUser: true } },
+      global: { stubs: { VImg: VImgStub } },
+    })
+
+    await fireEvent.click(container.querySelector('[aria-label="图片加载成功"]') as HTMLElement)
+
+    await waitFor(() => expect(container.querySelector('.v-avatar .iconify--mdi')).not.toBeNull())
+  })
+
   it('hides search and subscribe actions when the user lacks both permissions', async () => {
     const { container } = await renderCard(createMediaInfo({ tmdb_id: 9601 }), {
       permissions: {
diff --git a/src/components/dialog/GlassSettingsDialog.vue b/src/components/dialog/GlassSettingsDialog.vue
new file mode 100644
index 00000000..4f252f26
--- /dev/null
+++ b/src/components/dialog/GlassSettingsDialog.vue
@@ -0,0 +1,284 @@
+<script setup lang="ts">
+import {
+  cancelGlassPreview,
+  commitGlassPreview,
+  previewGlassSettings,
+  useThemeCustomizer,
+  type ThemeCustomizerGlassAppearance,
+  type ThemeCustomizerGlassQuality,
+} from '@/composables/useThemeCustomizer'
+import { useI18n } from 'vue-i18n'
+import { useDisplay } from 'vuetify'
+
+const props = withDefaults(
+  defineProps<{
+    modelValue?: boolean
+  }>(),
+  {
+    modelValue: true,
+  },
+)
+
+const emit = defineEmits<{
+  (event: 'close'): void
+  (event: 'update:modelValue', value: boolean): void
+}>()
+
+const { t } = useI18n()
+const display = useDisplay()
+const { settings } = useThemeCustomizer()
+const draftAppearance = ref<ThemeCustomizerGlassAppearance>(settings.value.glassAppearance)
+const draftQuality = ref<ThemeCustomizerGlassQuality>(settings.value.glassQuality)
+const isSaving = ref(false)
+
+const visible = computed({
+  get: () => props.modelValue,
+  set: value => {
+    if (!value) cancelGlassPreview()
+    emit('update:modelValue', value)
+    if (!value) emit('close')
+  },
+})
+
+/** 父级控制弹窗生命周期时，同步结束旧预览并重建持久化草稿。 */
+watch(
+  () => props.modelValue,
+  (value, previous) => {
+    if (value) {
+      draftAppearance.value = settings.value.glassAppearance
+      draftQuality.value = settings.value.glassQuality
+    } else if (previous) {
+      cancelGlassPreview()
+    }
+  },
+)
+
+const appearanceOptions: Array<{
+  label: string
+  value: ThemeCustomizerGlassAppearance
+}> = [
+  { label: 'theme.glassAppearanceClear', value: 'clear' },
+  { label: 'theme.glassAppearanceTinted', value: 'tinted' },
+  { label: 'theme.glassAppearanceFrosted', value: 'frosted' },
+]
+
+const qualityOptions: Array<{
+  label: string
+  value: ThemeCustomizerGlassQuality
+}> = [
+  { label: 'theme.glassQualityCss', value: 'css' },
+  { label: 'theme.glassQualityBalanced', value: 'balanced' },
+  { label: 'theme.glassQualityHigh', value: 'high' },
+]
+
+/** 仅允许已实现的材质进入待保存设置。 */
+function updateAppearance(value: unknown) {
+  if (value !== 'clear' && value !== 'tinted' && value !== 'frosted') return
+
+  draftAppearance.value = value
+  previewGlassSettings({ glassAppearance: value })
+}
+
+/** 仅允许面板声明的质量档位进入待保存设置。 */
+function updateQuality(value: unknown) {
+  const option = qualityOptions.find(item => item.value === value)
+  if (!option) return
+
+  draftQuality.value = option.value
+  previewGlassSettings({ glassQuality: option.value })
+}
+
+/** 一次提交当前预览，持久化后关闭不会发生视觉回跳。 */
+async function saveSettings() {
+  if (isSaving.value) return
+
+  isSaving.value = true
+
+  try {
+    previewGlassSettings({
+      glassAppearance: draftAppearance.value,
+      glassQuality: draftQuality.value,
+    })
+    commitGlassPreview()
+    visible.value = false
+  } finally {
+    isSaving.value = false
+  }
+}
+
+// 弹窗的任意未保存销毁路径都应恢复持久化快照。
+onScopeDispose(cancelGlassPreview)
+</script>
+
+<template>
+  <VDialog v-if="visible" v-model="visible" max-width="28rem" scrollable :fullscreen="display.xs.value">
+    <VCard class="glass-settings-dialog">
+      <VCardItem class="glass-settings-dialog__header py-3">
+        <template #prepend>
+          <VAvatar color="primary" variant="tonal" rounded size="40" class="me-2">
+            <VIcon icon="mdi-blur-radial" size="22" />
+          </VAvatar>
+        </template>
+        <VCardTitle>
+          {{ t('theme.glassSettings') }}
+        </VCardTitle>
+        <VDialogCloseBtn v-model="visible" />
+      </VCardItem>
+
+      <VCardText class="glass-settings-dialog__body">
+        <section>
+          <h3 class="glass-settings-dialog__label">{{ t('theme.glassAppearance') }}</h3>
+          <VBtnToggle
+            :model-value="draftAppearance"
+            mandatory
+            color="primary"
+            variant="text"
+            class="glass-settings-dialog__appearance"
+            @update:model-value="updateAppearance"
+          >
+            <VBtn
+              v-for="option in appearanceOptions"
+              :key="option.value"
+              :value="option.value"
+              class="glass-settings-dialog__appearance-option"
+            >
+              {{ t(option.label) }}
+            </VBtn>
+          </VBtnToggle>
+        </section>
+
+        <section>
+          <h3 class="glass-settings-dialog__label">{{ t('theme.glassQuality') }}</h3>
+          <VBtnToggle
+            :model-value="draftQuality"
+            mandatory
+            color="primary"
+            variant="text"
+            class="glass-settings-dialog__quality"
+            @update:model-value="updateQuality"
+          >
+            <VBtn
+              v-for="option in qualityOptions"
+              :key="option.value"
+              :value="option.value"
+              class="glass-settings-dialog__quality-option"
+            >
+              {{ t(option.label) }}
+            </VBtn>
+          </VBtnToggle>
+        </section>
+      </VCardText>
+
+      <VCardActions class="app-dialog-actions glass-settings-dialog__actions">
+        <VSpacer />
+        <VBtn
+          color="primary"
+          variant="flat"
+          prepend-icon="mdi-content-save"
+          class="px-5"
+          :loading="isSaving"
+          @click="saveSettings"
+        >
+          {{ t('common.save') }}
+        </VBtn>
+      </VCardActions>
+    </VCard>
+  </VDialog>
+</template>
+
+<style scoped lang="scss">
+.glass-settings-dialog {
+  overflow: hidden;
+  max-block-size: calc(100dvh - 2rem);
+}
+
+.glass-settings-dialog__header {
+  border-block-end: 1px solid rgba(var(--v-theme-on-surface), 0.08);
+}
+
+.glass-settings-dialog__body {
+  display: grid;
+  align-content: start;
+  gap: 24px;
+  grid-auto-rows: max-content;
+  padding: 20px 24px 24px;
+}
+
+.glass-settings-dialog__label {
+  margin: 0 0 10px;
+  color: rgba(var(--v-theme-on-surface), var(--v-high-emphasis-opacity));
+  font-size: 0.8125rem;
+  font-weight: 600;
+  line-height: 1.4;
+}
+
+.glass-settings-dialog__appearance,
+.glass-settings-dialog__quality {
+  display: grid;
+  overflow: hidden;
+  border: 1px solid rgba(var(--v-theme-on-surface), 0.12);
+  border-radius: 10px;
+  background: rgba(var(--v-theme-on-surface), 0.035);
+  gap: 4px;
+  inline-size: 100%;
+  padding: 4px;
+}
+
+.glass-settings-dialog__appearance {
+  block-size: 42px !important;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+}
+
+.glass-settings-dialog__quality {
+  block-size: 42px !important;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+}
+
+.glass-settings-dialog__appearance-option {
+  block-size: 32px !important;
+  inline-size: 100%;
+  letter-spacing: 0;
+}
+
+.glass-settings-dialog__appearance-option,
+.glass-settings-dialog__quality-option {
+  border: 0 !important;
+  border-radius: 7px !important;
+  box-shadow: none !important;
+  min-inline-size: 0;
+  inline-size: 100%;
+  letter-spacing: 0;
+  padding-inline: 8px;
+}
+
+.glass-settings-dialog__quality-option {
+  block-size: 32px !important;
+}
+
+.glass-settings-dialog__appearance-option:deep(.v-btn--active),
+.glass-settings-dialog__quality-option:deep(.v-btn--active) {
+  background-color: rgba(var(--v-theme-primary), 0.14) !important;
+  box-shadow: inset 0 0 0 1px rgba(var(--v-theme-primary), 0.38) !important;
+}
+
+.glass-settings-dialog__actions {
+  border-block-start: 1px solid rgba(var(--v-theme-on-surface), 0.08);
+  padding-block: 0.875rem;
+  padding-inline: 1rem;
+}
+
+@media (width <= 600px) {
+  .glass-settings-dialog {
+    block-size: 100dvh;
+    max-block-size: 100dvh;
+  }
+
+  .glass-settings-dialog__body {
+    padding-inline: 18px;
+  }
+
+  .glass-settings-dialog__actions {
+    padding-block-end: max(0.875rem, calc(env(safe-area-inset-bottom) + 0.75rem));
+  }
+}
+</style>
diff --git a/src/components/dialog/__tests__/GlassSettingsDialog.spec.ts b/src/components/dialog/__tests__/GlassSettingsDialog.spec.ts
new file mode 100644
index 00000000..3ff6c04e
--- /dev/null
+++ b/src/components/dialog/__tests__/GlassSettingsDialog.spec.ts
@@ -0,0 +1,48 @@
+import { shallowMount } from '@vue/test-utils'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import GlassSettingsDialog from '@/components/dialog/GlassSettingsDialog.vue'
+
+const mocks = vi.hoisted(() => ({
+  cancelGlassPreview: vi.fn(),
+}))
+
+vi.mock('@/composables/useThemeCustomizer', () => ({
+  cancelGlassPreview: mocks.cancelGlassPreview,
+  commitGlassPreview: vi.fn(),
+  previewGlassSettings: vi.fn(),
+  useThemeCustomizer: () => ({
+    settings: {
+      value: {
+        glassAppearance: 'clear',
+        glassQuality: 'css',
+      },
+    },
+  }),
+}))
+
+vi.mock('vue-i18n', () => ({
+  useI18n: () => ({ t: (key: string) => key }),
+}))
+
+vi.mock('vuetify', () => ({
+  useDisplay: () => ({ xs: { value: false } }),
+}))
+
+describe('GlassSettingsDialog', () => {
+  beforeEach(() => {
+    mocks.cancelGlassPreview.mockClear()
+  })
+
+  it('cancels an active preview when the parent closes the dialog', async () => {
+    const wrapper = shallowMount(GlassSettingsDialog, {
+      global: {
+        stubs: { VDialogCloseBtn: true },
+      },
+      props: { modelValue: true },
+    })
+
+    await wrapper.setProps({ modelValue: false })
+
+    expect(mocks.cancelGlassPreview).toHaveBeenCalledOnce()
+  })
+})
diff --git a/src/components/theme/GlassOpticalLayer.vue b/src/components/theme/GlassOpticalLayer.vue
new file mode 100644
index 00000000..20932cc8
--- /dev/null
+++ b/src/components/theme/GlassOpticalLayer.vue
@@ -0,0 +1,32 @@
+<script setup lang="ts">
+import type { ThemeCustomizerGlassAppearance, ThemeCustomizerGlassQuality } from '@/composables/useThemeCustomizer'
+import { useGlassOpticalRenderer } from '@/composables/useGlassOpticalRenderer'
+
+const props = defineProps<{
+  /** 当前玻璃材质，用于选择透明、色调或磨砂的光学参数。 */
+  appearance: ThemeCustomizerGlassAppearance
+  /** 当前光学质量；标准档不会挂载该组件。 */
+  quality: Exclude<ThemeCustomizerGlassQuality, 'css'>
+  /** 路由变化标识，用于在页面内容稳定后重新发现高价值表面。 */
+  routeKey: string
+  /** 当前主题主色，用于同步色调材质的光学高光。 */
+  tintColor: string
+  /** 与 CSS 背景保持一致的活动壁纸。 */
+  wallpaperUrl: string
+}>()
+
+const canvas = ref<HTMLCanvasElement | null>(null)
+const { state } = useGlassOpticalRenderer({
+  active: true,
+  appearance: () => props.appearance,
+  canvas,
+  quality: () => props.quality,
+  routeKey: () => props.routeKey,
+  tintColor: () => props.tintColor,
+  wallpaperUrl: () => props.wallpaperUrl,
+})
+</script>
+
+<template>
+  <canvas ref="canvas" class="glass-optical-layer" aria-hidden="true" :data-state="state" />
+</template>
diff --git a/src/components/theme/ThemeCustomizer.vue b/src/components/theme/ThemeCustomizer.vue
index 4367b00c..513659ea 100644
--- a/src/components/theme/ThemeCustomizer.vue
+++ b/src/components/theme/ThemeCustomizer.vue
@@ -22,6 +22,8 @@ const customColorInput = ref<HTMLInputElement | null>(null)
 const {
   isCustomized,
   resetSettings,
+  setGlassAppearance,
+  setGlassQuality,
   setLayout,
   setPrimaryColor,
   setRadius,
@@ -137,6 +139,8 @@ const showShadowSection = computed(() => globalTheme.name.value !== 'glass')
 const hasAppModeCustomization = computed(() => {
   return (
     settings.value.primaryColor !== defaultPrimaryColor ||
+    settings.value.glassAppearance !== 'clear' ||
+    settings.value.glassQuality !== 'css' ||
     settings.value.radius !== 'default' ||
     settings.value.shadow !== '0' ||
     settings.value.skin !== 'default' ||
@@ -197,6 +201,8 @@ async function handleResetSettings() {
 
   // App 模式共享定制器，但保留桌面导航相关偏好，只重置 App 侧可调整的外观设置。
   await setPrimaryColor(defaultPrimaryColor)
+  await setGlassAppearance('clear')
+  await setGlassQuality('css')
   await setRadius('default')
   await setShadow('0')
   await setSkin('default')
@@ -205,11 +211,7 @@ async function handleResetSettings() {
 </script>
 
 <template>
-  <aside
-    class="theme-customizer-panel-host"
-    role="dialog"
-    :aria-label="t('theme.customizer.title')"
-  >
+  <aside class="theme-customizer-panel-host" role="dialog" :aria-label="t('theme.customizer.title')">
     <div class="theme-customizer-panel" :class="{ 'theme-customizer-panel--dialog': appMode, 'app-surface': appMode }">
       <div class="theme-customizer-header py-5 px-4">
         <div>
@@ -320,10 +322,7 @@ async function handleResetSettings() {
               :class="{ 'is-active': settings.radius === radius.value }"
               @click="setRadius(radius.value)"
             >
-              <span
-                class="theme-customizer-radius-scene"
-                :class="`theme-customizer-radius-scene--${radius.value}`"
-              >
+              <span class="theme-customizer-radius-scene" :class="`theme-customizer-radius-scene--${radius.value}`">
                 <span class="theme-customizer-radius-scene__card">
                   <span class="theme-customizer-radius-scene__badge" />
                   <span class="theme-customizer-radius-scene__line" />
@@ -350,7 +349,9 @@ async function handleResetSettings() {
                 >
                   <span class="theme-customizer-shadow-slider__sample-accent" />
                   <span class="theme-customizer-shadow-slider__sample-line" />
-                  <span class="theme-customizer-shadow-slider__sample-line theme-customizer-shadow-slider__sample-line--short" />
+                  <span
+                    class="theme-customizer-shadow-slider__sample-line theme-customizer-shadow-slider__sample-line--short"
+                  />
                 </span>
                 <VSlider
                   :model-value="shadowSliderValue"
@@ -367,10 +368,7 @@ async function handleResetSettings() {
                   @update:model-value="handleShadowSliderChange"
                 />
               </div>
-              <div
-                class="theme-customizer-shadow-slider__scale"
-                aria-hidden="true"
-              >
+              <div class="theme-customizer-shadow-slider__scale" aria-hidden="true">
                 <span>0</span>
                 <span>24</span>
               </div>
diff --git a/src/composables/__tests__/useGlassOpticalRenderer.spec.ts b/src/composables/__tests__/useGlassOpticalRenderer.spec.ts
new file mode 100644
index 00000000..4f0b32b0
--- /dev/null
+++ b/src/composables/__tests__/useGlassOpticalRenderer.spec.ts
@@ -0,0 +1,120 @@
+import {
+  containsGlassOpticalSurface,
+  setGlassRendererState,
+  useGlassOpticalRenderer,
+  type GlassRendererState,
+} from '@/composables/useGlassOpticalRenderer'
+import { effectScope, nextTick, ref } from 'vue'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+
+vi.mock('three', async importOriginal => {
+  const actual = await importOriginal<typeof import('three')>()
+  return {
+    ...actual,
+    TextureLoader: class {
+      loadAsync() {
+        const texture = new actual.Texture()
+        texture.image = { height: 1, naturalHeight: 1, naturalWidth: 1, width: 1 }
+        return Promise.resolve(texture)
+      }
+
+      setCrossOrigin() {}
+    },
+    WebGLRenderer: class {
+      compileAsync() {
+        return Promise.resolve()
+      }
+
+      dispose() {}
+      forceContextLoss() {}
+      render() {}
+      setClearColor() {}
+      setPixelRatio() {}
+      setSize() {}
+    },
+  }
+})
+
+class ResizeObserverMock {
+  disconnect() {}
+  observe() {}
+}
+
+beforeEach(() => {
+  vi.stubGlobal('ResizeObserver', ResizeObserverMock)
+  vi.stubGlobal('WebGLRenderingContext', class {})
+  vi.spyOn(HTMLCanvasElement.prototype, 'getContext').mockReturnValue(null)
+})
+
+afterEach(() => {
+  vi.restoreAllMocks()
+  vi.unstubAllGlobals()
+  delete document.documentElement.dataset.glassRendererState
+})
+
+describe('glass optical surface discovery', () => {
+  it('detects a target surface added directly', () => {
+    const surface = document.createElement('section')
+    surface.className = 'dashboard-grid-item-content'
+
+    expect(containsGlassOpticalSurface(surface)).toBe(true)
+  })
+
+  it('detects a target surface inside an asynchronously added subtree', () => {
+    const wrapper = document.createElement('div')
+    wrapper.innerHTML = '<div><section class="dashboard-grid-item-content"></section></div>'
+
+    expect(containsGlassOpticalSurface(wrapper)).toBe(true)
+    expect(containsGlassOpticalSurface(document.createElement('div'))).toBe(false)
+  })
+
+  it('detects an optical surface when the overlay root is created lazily', () => {
+    const overlayRoot = document.createElement('div')
+    overlayRoot.className = 'v-overlay-container'
+    overlayRoot.innerHTML = `
+      <div class="v-overlay v-overlay--active">
+        <div class="v-overlay__content"><div class="v-card"></div></div>
+      </div>
+    `
+
+    expect(containsGlassOpticalSurface(overlayRoot)).toBe(true)
+  })
+
+  it('keeps the renderer state used by components and global CSS in sync', () => {
+    const state = ref<GlassRendererState>('ready')
+
+    setGlassRendererState(state, 'fallback')
+
+    expect(state.value).toBe('fallback')
+    expect(document.documentElement.dataset.glassRendererState).toBe('fallback')
+  })
+
+  it('recovers after consecutive WebGL context loss cycles', async () => {
+    const canvas = document.createElement('canvas')
+    const scope = effectScope()
+    const renderer = scope.run(() =>
+      useGlassOpticalRenderer({
+        active: ref(true),
+        appearance: ref('clear'),
+        canvas: ref(canvas),
+        quality: ref('balanced'),
+        routeKey: ref('/dashboard'),
+        tintColor: ref('#8D51F9'),
+        wallpaperUrl: ref('https://example.com/wallpaper.jpg'),
+      }),
+    )
+
+    await vi.waitFor(() => expect(renderer?.state.value).toBe('ready'))
+
+    for (let cycle = 0; cycle < 2; cycle += 1) {
+      canvas.dispatchEvent(new Event('webglcontextlost', { cancelable: true }))
+      expect(renderer?.state.value).toBe('fallback')
+
+      canvas.dispatchEvent(new Event('webglcontextrestored'))
+      await nextTick()
+      await vi.waitFor(() => expect(renderer?.state.value).toBe('ready'))
+    }
+
+    scope.stop()
+  })
+})
diff --git a/src/composables/__tests__/useThemeCustomizer.spec.ts b/src/composables/__tests__/useThemeCustomizer.spec.ts
new file mode 100644
index 00000000..e20a776a
--- /dev/null
+++ b/src/composables/__tests__/useThemeCustomizer.spec.ts
@@ -0,0 +1,107 @@
+import {
+  applyThemeCustomizerRootSettings,
+  cancelGlassPreview,
+  commitGlassPreview,
+  persistPartialThemeCustomizerSettings,
+  previewGlassSettings,
+  readThemeCustomizerSettings,
+  THEME_CUSTOMIZER_STORAGE_KEY,
+} from '@/composables/useThemeCustomizer'
+import { beforeEach, describe, expect, it } from 'vitest'
+
+describe('useThemeCustomizer glass settings', () => {
+  beforeEach(() => {
+    cancelGlassPreview()
+    localStorage.clear()
+    persistPartialThemeCustomizerSettings({ glassAppearance: 'clear', glassQuality: 'css' })
+    localStorage.clear()
+  })
+
+  it('uses clear appearance and CSS quality by default', () => {
+    const settings = readThemeCustomizerSettings()
+
+    expect(settings.glassAppearance).toBe('clear')
+    expect(settings.glassQuality).toBe('css')
+  })
+
+  it.each(['balanced', 'high'] as const)('preserves the %s quality contract', quality => {
+    localStorage.setItem(THEME_CUSTOMIZER_STORAGE_KEY, JSON.stringify({ glassQuality: quality }))
+
+    expect(readThemeCustomizerSettings().glassQuality).toBe(quality)
+  })
+
+  it.each(['clear', 'tinted', 'frosted'] as const)('preserves the %s material contract', glassAppearance => {
+    localStorage.setItem(THEME_CUSTOMIZER_STORAGE_KEY, JSON.stringify({ glassAppearance }))
+
+    expect(readThemeCustomizerSettings().glassAppearance).toBe(glassAppearance)
+  })
+
+  it('falls back when stored glass settings are invalid', () => {
+    localStorage.setItem(
+      THEME_CUSTOMIZER_STORAGE_KEY,
+      JSON.stringify({ glassAppearance: 'opaque', glassQuality: 'ultra' }),
+    )
+
+    const settings = readThemeCustomizerSettings()
+
+    expect(settings.glassAppearance).toBe('clear')
+    expect(settings.glassQuality).toBe('css')
+  })
+
+  it('syncs glass settings to the document roots', () => {
+    const settings = readThemeCustomizerSettings()
+
+    applyThemeCustomizerRootSettings({
+      ...settings,
+      glassAppearance: 'tinted',
+      glassQuality: 'high',
+    })
+
+    expect(document.documentElement.dataset.glassAppearance).toBe('tinted')
+    expect(document.documentElement.dataset.glassQuality).toBe('high')
+    expect(document.body.dataset.glassAppearance).toBe('tinted')
+    expect(document.body.dataset.glassQuality).toBe('high')
+  })
+
+  it('previews glass settings without persisting them', () => {
+    const storedBeforePreview = localStorage.getItem(THEME_CUSTOMIZER_STORAGE_KEY)
+
+    previewGlassSettings({ glassAppearance: 'tinted' })
+
+    expect(document.documentElement.dataset.glassAppearance).toBe('tinted')
+    expect(readThemeCustomizerSettings().glassAppearance).toBe('clear')
+    expect(localStorage.getItem(THEME_CUSTOMIZER_STORAGE_KEY)).toBe(storedBeforePreview)
+  })
+
+  it('commits the latest glass preview as one persisted state', () => {
+    previewGlassSettings({ glassAppearance: 'tinted' })
+    previewGlassSettings({ glassAppearance: 'clear' })
+    previewGlassSettings({ glassAppearance: 'tinted', glassQuality: 'css' })
+
+    commitGlassPreview()
+
+    expect(readThemeCustomizerSettings()).toMatchObject({ glassAppearance: 'tinted', glassQuality: 'css' })
+    expect(document.documentElement.dataset.glassAppearance).toBe('tinted')
+  })
+
+  it('previews and commits frosted material without changing quality', () => {
+    previewGlassSettings({ glassAppearance: 'frosted' })
+
+    expect(document.documentElement.dataset.glassAppearance).toBe('frosted')
+    expect(readThemeCustomizerSettings()).toMatchObject({ glassAppearance: 'clear', glassQuality: 'css' })
+
+    commitGlassPreview()
+
+    expect(readThemeCustomizerSettings()).toMatchObject({ glassAppearance: 'frosted', glassQuality: 'css' })
+  })
+
+  it('restores persisted glass settings when a preview is cancelled', () => {
+    persistPartialThemeCustomizerSettings({ glassAppearance: 'tinted' })
+    previewGlassSettings({ glassAppearance: 'clear' })
+
+    cancelGlassPreview()
+
+    expect(document.documentElement.dataset.glassAppearance).toBe('tinted')
+    expect(readThemeCustomizerSettings().glassAppearance).toBe('tinted')
+  })
+})
diff --git a/src/composables/useGlassOpticalRenderer.ts b/src/composables/useGlassOpticalRenderer.ts
new file mode 100644
index 00000000..bc1059d1
--- /dev/null
+++ b/src/composables/useGlassOpticalRenderer.ts
@@ -0,0 +1,815 @@
+import { nextTick, onScopeDispose, ref, toValue, watch, type MaybeRefOrGetter, type Ref } from 'vue'
+import type {
+  BufferGeometry,
+  Color,
+  IUniform,
+  Mesh,
+  OrthographicCamera,
+  Scene,
+  ShaderMaterial,
+  Texture,
+  Vector2,
+  Vector4,
+  WebGLRenderer,
+} from 'three'
+import {
+  canUseGlassWallpaperTexture,
+  getGlassCoverScale,
+  getGlassOpticalBufferSize,
+  getGlassOpticalRenderProfile,
+  normalizeGlassOpticalRect,
+  selectGlassOpticalRects,
+  type GlassOpticalQuality,
+  type GlassOpticalRect,
+} from '@/utils/glassOptics'
+import type { ThemeCustomizerGlassAppearance } from '@/composables/useThemeCustomizer'
+
+type ThreeModule = typeof import('three')
+export type GlassRendererState = 'fallback' | 'loading' | 'ready'
+
+/** 同步组件状态和根节点属性，确保 CSS 回退与 renderer 生命周期一致。 */
+export function setGlassRendererState(state: Ref<GlassRendererState>, value: GlassRendererState) {
+  state.value = value
+  document.documentElement.dataset.glassRendererState = value
+}
+
+interface GlassRendererUniforms extends Record<string, IUniform> {
+  uAppearance: IUniform<number>
+  uCoverScale: IUniform<Vector2>
+  uHasWallpaperTexture: IUniform<number>
+  uPointer: IUniform<Vector2>
+  uQuality: IUniform<number>
+  uRadii: IUniform<number[]>
+  uRectCount: IUniform<number>
+  uRects: IUniform<Vector4[]>
+  uTexture: IUniform<Texture | null>
+  uTintColor: IUniform<Color>
+  uTime: IUniform<number>
+  uViewportSize: IUniform<Vector2>
+}
+
+interface GlassRendererResources {
+  camera: OrthographicCamera
+  geometry: BufferGeometry
+  material: ShaderMaterial
+  mesh: Mesh
+  renderer: WebGLRenderer
+  scene: Scene
+  uniforms: GlassRendererUniforms
+}
+
+interface UseGlassOpticalRendererOptions {
+  active: MaybeRefOrGetter<boolean>
+  appearance: MaybeRefOrGetter<ThemeCustomizerGlassAppearance>
+  canvas: Ref<HTMLCanvasElement | null>
+  quality: MaybeRefOrGetter<GlassOpticalQuality>
+  routeKey: MaybeRefOrGetter<string>
+  tintColor: MaybeRefOrGetter<string>
+  wallpaperUrl: MaybeRefOrGetter<string>
+}
+
+const SURFACE_SELECTORS = [
+  { rank: 1, selector: '.v-overlay--active .v-overlay__content > .v-card' },
+  { rank: 1, selector: '.v-overlay--active .v-overlay__content > .v-sheet' },
+  { rank: 1, selector: '.agent-assistant-panel' },
+  { rank: 1, selector: '.login-card' },
+  { rank: 2, selector: '.layout-vertical-nav' },
+  { rank: 2, selector: '.layout-navbar' },
+  { rank: 3, selector: '.dashboard-grid-item-content' },
+] as const
+const SURFACE_SELECTOR_QUERY = SURFACE_SELECTORS.map(({ selector }) => selector).join(',')
+
+/** 判断新增或移除的 DOM 子树是否会改变光学表面集合。 */
+export function containsGlassOpticalSurface(node: Node) {
+  return (
+    node instanceof Element &&
+    (node.matches(SURFACE_SELECTOR_QUERY) || Boolean(node.querySelector(SURFACE_SELECTOR_QUERY)))
+  )
+}
+
+const VERTEX_SHADER = `
+varying vec2 vUv;
+
+void main() {
+  vUv = position.xy * 0.5 + 0.5;
+  gl_Position = vec4(position.xy, 0.0, 1.0);
+}
+`
+
+const FRAGMENT_SHADER = `
+precision highp float;
+
+uniform sampler2D uTexture;
+uniform vec2 uCoverScale;
+uniform float uHasWallpaperTexture;
+uniform vec2 uPointer;
+uniform float uQuality;
+uniform vec4 uRects[8];
+uniform float uRadii[8];
+uniform int uRectCount;
+uniform float uAppearance;
+uniform vec3 uTintColor;
+uniform float uTime;
+uniform vec2 uViewportSize;
+varying vec2 vUv;
+
+float roundedRectMask(vec2 local, vec2 rectSize, float radius) {
+  float safeRadius = min(max(radius, 0.0), min(rectSize.x, rectSize.y) * 0.5);
+  vec2 centered = abs(local - 0.5) * rectSize - (rectSize * 0.5 - vec2(safeRadius));
+  float distanceToEdge = length(max(centered, 0.0)) + min(max(centered.x, centered.y), 0.0) - safeRadius;
+  return 1.0 - smoothstep(-1.0, 1.0, distanceToEdge);
+}
+
+vec2 coverUv(vec2 uv) {
+  return vec2(0.5) + (uv - vec2(0.5)) * uCoverScale;
+}
+
+void main() {
+  float mask = 0.0;
+  float edge = 0.0;
+  float caustic = 0.0;
+  vec2 refraction = vec2(0.0);
+
+  for (int i = 0; i < 8; i++) {
+    if (i >= uRectCount) break;
+
+    vec4 rect = uRects[i];
+    vec2 local = (vUv - rect.xy) / rect.zw;
+    float rectMask = roundedRectMask(local, rect.zw * uViewportSize, uRadii[i]);
+    if (rectMask <= 0.0) continue;
+
+    float edgeDistance = min(min(local.x, 1.0 - local.x), min(local.y, 1.0 - local.y));
+    float edgeResponse = 1.0 - smoothstep(0.0, 0.16, edgeDistance);
+    vec2 lens = local - vec2(0.5);
+    vec2 pointerDelta = uPointer - vUv;
+    float pointerEnergy = exp(-dot(pointerDelta, pointerDelta) * 18.0);
+    float ripple = sin((local.x + local.y) * 10.0 + uTime * 0.004) * mix(0.0008, 0.0014, uQuality);
+    vec2 pointerLocal = (uPointer - rect.xy) / rect.zw;
+    float causticDistance = length(local - pointerLocal);
+    float causticWave = 0.5 + 0.5 * cos(causticDistance * 34.0 - uTime * 0.018);
+    float localCaustic = exp(-causticDistance * 7.0) * causticWave * rectMask * uQuality;
+
+    refraction += (lens * mix(0.006 + edgeResponse * 0.012, 0.009 + edgeResponse * 0.017, uQuality) + pointerDelta * pointerEnergy * mix(0.0024, 0.0042, uQuality) + ripple) * rectMask;
+    edge = max(edge, edgeResponse * rectMask);
+    caustic = max(caustic, localCaustic);
+    mask = max(mask, rectMask);
+  }
+
+  if (mask <= 0.0) discard;
+
+  vec2 sourceUv = coverUv(vUv + refraction);
+  float separation = 0.0012 * edge;
+  vec3 refracted = vec3(
+    texture2D(uTexture, sourceUv + vec2(separation, 0.0)).r,
+    texture2D(uTexture, sourceUv).g,
+    texture2D(uTexture, sourceUv - vec2(separation, 0.0)).b
+  );
+  if (uQuality > 0.5) {
+    float detailSeparation = separation * 1.8 + 0.0007;
+    vec3 detailed = vec3(
+      texture2D(uTexture, sourceUv + vec2(detailSeparation, detailSeparation * 0.35)).r,
+      texture2D(uTexture, sourceUv).g,
+      texture2D(uTexture, sourceUv - vec2(detailSeparation, detailSeparation * 0.35)).b
+    );
+    refracted = mix(refracted, detailed, 0.42);
+  }
+  vec3 highlight = vec3(0.84, 0.92, 1.0);
+  float edgeHighlightMix = 0.12;
+  float causticHighlightMix = 0.12;
+  float materialAlpha = 0.28;
+  float proceduralEdgeAlpha = 0.14;
+  float proceduralCausticAlpha = 0.1;
+
+  if (uAppearance > 1.5) {
+    highlight = vec3(0.94, 0.97, 1.0);
+    edgeHighlightMix = 0.22;
+    causticHighlightMix = 0.1;
+    materialAlpha = 0.34;
+    proceduralEdgeAlpha = 0.18;
+    proceduralCausticAlpha = 0.08;
+  } else if (uAppearance > 0.5) {
+    highlight = mix(vec3(1.0), uTintColor, 0.72);
+    edgeHighlightMix = 0.17;
+    causticHighlightMix = 0.16;
+    materialAlpha = 0.3;
+  }
+
+  if (uHasWallpaperTexture < 0.5) {
+    vec3 proceduralHighlight = highlight * (edge * 0.46 + caustic * 0.72);
+    float proceduralAlpha = mask * (edge * proceduralEdgeAlpha + caustic * proceduralCausticAlpha);
+    gl_FragColor = vec4(proceduralHighlight, proceduralAlpha);
+    return;
+  }
+
+  refracted = mix(refracted, highlight, edge * edgeHighlightMix);
+  refracted += highlight * caustic * causticHighlightMix;
+
+  gl_FragColor = vec4(refracted, mask * (materialAlpha + edge * 0.25 + caustic * 0.08));
+}
+`
+
+const SCROLL_SURFACE_UPDATE_INTERVAL_MS = 32
+
+/** 读取 CSS 圆角并折算为像素值。 */
+function readBorderRadius(element: HTMLElement) {
+  const value = Number.parseFloat(getComputedStyle(element).borderTopLeftRadius)
+
+  return Number.isFinite(value) ? value : 0
+}
+
+/** 判断元素是否在布局和视口中实际可见。 */
+function isVisibleSurface(element: HTMLElement, bounds: DOMRect) {
+  const style = getComputedStyle(element)
+
+  return (
+    style.display !== 'none' &&
+    style.visibility !== 'hidden' &&
+    Number.parseFloat(style.opacity || '1') > 0 &&
+    bounds.width >= 24 &&
+    bounds.height >= 24
+  )
+}
+
+/** 将活动界面中的高价值材质面集中转换为 renderer 矩形预算。 */
+export function collectGlassOpticalRects(viewportWidth: number, viewportHeight: number) {
+  const candidates: GlassOpticalRect[] = []
+  const seen = new Set<HTMLElement>()
+
+  for (const { rank, selector } of SURFACE_SELECTORS) {
+    for (const element of document.querySelectorAll<HTMLElement>(selector)) {
+      if (seen.has(element)) continue
+      seen.add(element)
+
+      const bounds = element.getBoundingClientRect()
+      if (!isVisibleSurface(element, bounds)) continue
+
+      candidates.push({
+        height: bounds.height,
+        radius: readBorderRadius(element),
+        rank: rank + candidates.length * 0.001,
+        width: bounds.width,
+        x: bounds.left,
+        y: bounds.top,
+      })
+    }
+  }
+
+  return selectGlassOpticalRects(candidates, viewportWidth, viewportHeight, viewportWidth <= 600)
+}
+
+/** 将材质语义映射为稳定 shader 协议，质量档不参与该映射。 */
+function getGlassAppearanceUniformValue(appearance: ThemeCustomizerGlassAppearance) {
+  if (appearance === 'tinted') return 1
+  if (appearance === 'frosted') return 2
+
+  return 0
+}
+
+/** 管理玻璃主题唯一 renderer、事件驱动帧调度与完整 GPU 资源释放。 */
+export function useGlassOpticalRenderer(options: UseGlassOpticalRendererOptions) {
+  const state = ref<GlassRendererState>('loading')
+  const renderedFrames = ref(0)
+  let three: ThreeModule | null = null
+  let resources: GlassRendererResources | null = null
+  let activeTexture: Texture | null = null
+  let activeTextureHeight = 1
+  let activeTextureWidth = 1
+  let loadVersion = 0
+  let animationFrame: number | null = null
+  let surfaceUpdateFrame: number | null = null
+  let pointerAnimationStartedAt = 0
+  let surfaceResizeTimer: number | null = null
+  let scrollSurfaceTimer: number | null = null
+  let lastScrollSurfaceUpdateAt = 0
+  let resizeObserver: ResizeObserver | null = null
+  let surfaceMutationObserver: MutationObserver | null = null
+  let observedSurfaces: HTMLElement[] = []
+  let currentRects: GlassOpticalRect[] = []
+  let tracksScrollingSurfaces = false
+  let contextRecoveryPending = false
+
+  function cancelScheduledFrame() {
+    if (animationFrame === null) return
+
+    cancelAnimationFrame(animationFrame)
+    animationFrame = null
+  }
+
+  function renderFrame(timestamp = performance.now()) {
+    animationFrame = null
+    if (!resources || !toValue(options.active) || document.visibilityState === 'hidden') return
+
+    resources.uniforms.uTime.value = timestamp
+    resources.renderer.render(resources.scene, resources.camera)
+    renderedFrames.value += 1
+  }
+
+  function scheduleFrame() {
+    if (animationFrame !== null || !resources) return
+
+    animationFrame = requestAnimationFrame(renderFrame)
+  }
+
+  function updateSurfaceUniforms() {
+    if (!resources || !three) return
+
+    const viewportWidth = window.innerWidth
+    const viewportHeight = window.innerHeight
+    const rects = collectGlassOpticalRects(viewportWidth, viewportHeight)
+    currentRects = rects
+    const normalized = rects.map(rect => normalizeGlassOpticalRect(rect, viewportWidth, viewportHeight))
+    const uniformRects = resources.uniforms.uRects.value
+    const uniformRadii = resources.uniforms.uRadii.value
+
+    for (let index = 0; index < 8; index += 1) {
+      const surface = normalized[index]
+      const rect = surface?.rect ?? [0, 0, 0, 0]
+      uniformRects[index].set(rect[0], rect[1], rect[2], rect[3])
+      uniformRadii[index] = surface?.radius ?? 0
+    }
+
+    resources.uniforms.uRectCount.value = normalized.length
+    const nextObservedSurfaces = Array.from(
+      new Set(
+        SURFACE_SELECTORS.flatMap(({ selector }) => Array.from(document.querySelectorAll<HTMLElement>(selector))),
+      ),
+    )
+    const observedSurfacesChanged =
+      nextObservedSurfaces.length !== observedSurfaces.length ||
+      nextObservedSurfaces.some((element, index) => element !== observedSurfaces[index])
+
+    if (observedSurfacesChanged) {
+      resizeObserver?.disconnect()
+      observedSurfaces = nextObservedSurfaces
+      for (const element of observedSurfaces) resizeObserver?.observe(element)
+    }
+    tracksScrollingSurfaces = observedSurfaces.some(element => element.matches('.dashboard-grid-item-content'))
+    scheduleFrame()
+  }
+
+  function scheduleSurfaceUpdate() {
+    if (surfaceUpdateFrame !== null || !resources) return
+
+    surfaceUpdateFrame = requestAnimationFrame(() => {
+      surfaceUpdateFrame = null
+      updateSurfaceUniforms()
+    })
+  }
+
+  function scheduleSurfaceResizeUpdate() {
+    if (surfaceResizeTimer !== null) window.clearTimeout(surfaceResizeTimer)
+
+    surfaceResizeTimer = window.setTimeout(() => {
+      surfaceResizeTimer = null
+      scheduleSurfaceUpdate()
+    }, 160)
+  }
+
+  function syncCoverScale(viewportWidth = window.innerWidth, viewportHeight = window.innerHeight) {
+    if (!resources) return
+
+    const cover = getGlassCoverScale(viewportWidth, viewportHeight, activeTextureWidth, activeTextureHeight)
+    resources.uniforms.uCoverScale.value.set(cover.x, cover.y)
+  }
+
+  function resizeRenderer() {
+    if (!resources) return
+
+    const viewportWidth = window.innerWidth
+    const viewportHeight = window.innerHeight
+    const profile = getGlassOpticalRenderProfile(toValue(options.quality), toValue(options.routeKey))
+    const buffer = getGlassOpticalBufferSize(viewportWidth, viewportHeight, viewportWidth <= 600, profile.bufferQuality)
+    resources.renderer.setSize(buffer.width, buffer.height, false)
+    resources.uniforms.uViewportSize.value.set(viewportWidth, viewportHeight)
+    syncCoverScale(viewportWidth, viewportHeight)
+    scheduleSurfaceUpdate()
+  }
+
+  function handlePointerMove(event: PointerEvent) {
+    if (!resources || matchMedia('(prefers-reduced-motion: reduce)').matches) return
+    if (
+      !currentRects.some(
+        rect =>
+          event.clientX >= rect.x &&
+          event.clientX <= rect.x + rect.width &&
+          event.clientY >= rect.y &&
+          event.clientY <= rect.y + rect.height,
+      )
+    )
+      return
+
+    resources.uniforms.uPointer.value.set(event.clientX / window.innerWidth, 1 - event.clientY / window.innerHeight)
+    pointerAnimationStartedAt = performance.now()
+
+    const animatePointer = (timestamp: number) => {
+      renderFrame(timestamp)
+      const responseDuration = toValue(options.quality) === 'high' ? 520 : 360
+      if (timestamp - pointerAnimationStartedAt < responseDuration && toValue(options.active)) {
+        animationFrame = requestAnimationFrame(animatePointer)
+      }
+    }
+
+    cancelScheduledFrame()
+    animationFrame = requestAnimationFrame(animatePointer)
+  }
+
+  function handleScroll() {
+    if (!tracksScrollingSurfaces || scrollSurfaceTimer !== null) return
+
+    const elapsed = performance.now() - lastScrollSurfaceUpdateAt
+    const delay = Math.max(0, SCROLL_SURFACE_UPDATE_INTERVAL_MS - elapsed)
+    scrollSurfaceTimer = window.setTimeout(() => {
+      scrollSurfaceTimer = null
+      lastScrollSurfaceUpdateAt = performance.now()
+      scheduleSurfaceUpdate()
+    }, delay)
+  }
+
+  function handleVisibilityChange() {
+    if (document.visibilityState === 'hidden') cancelScheduledFrame()
+    else scheduleFrame()
+  }
+
+  function handleContextLost(event: Event) {
+    event.preventDefault()
+    cancelScheduledFrame()
+    contextRecoveryPending = true
+    setGlassRendererState(state, 'fallback')
+  }
+
+  function handleContextRestored() {
+    if (!contextRecoveryPending) return
+
+    contextRecoveryPending = false
+    void initializeRenderer(false)
+  }
+
+  /** 只让会改变目标表面集合或圆角几何的 DOM 变更触发重扫。 */
+  function mutationTouchesOpticalSurface(mutations: MutationRecord[]) {
+    return mutations.some(
+      mutation =>
+        mutation.type === 'attributes' ||
+        [...mutation.addedNodes, ...mutation.removedNodes].some(containsGlassOpticalSurface),
+    )
+  }
+
+  function setupObservers() {
+    resizeObserver = new ResizeObserver(scheduleSurfaceResizeUpdate)
+    const observedMutationRoots = new Set<Node>()
+
+    function observeMutationRoot(root: Node | null, subtree: boolean) {
+      if (!root || observedMutationRoots.has(root)) return
+
+      observedMutationRoots.add(root)
+      surfaceMutationObserver?.observe(root, { childList: true, subtree })
+    }
+
+    surfaceMutationObserver = new MutationObserver(mutations => {
+      // Vuetify 可能在首个弹层打开时才创建容器，后续变更需要纳入同一个表面生命周期。
+      observeMutationRoot(document.querySelector('.v-overlay-container'), true)
+      if (mutationTouchesOpticalSurface(mutations)) scheduleSurfaceUpdate()
+    })
+    observeMutationRoot(document.querySelector('.app-wrapper'), true)
+    observeMutationRoot(document.querySelector('.v-overlay-container'), true)
+    observeMutationRoot(document.body, false)
+    surfaceMutationObserver.observe(document.documentElement, {
+      attributeFilter: ['data-theme-radius'],
+      attributes: true,
+    })
+  }
+
+  function setupEvents() {
+    window.addEventListener('pointermove', handlePointerMove, { passive: true })
+    window.addEventListener('resize', resizeRenderer, { passive: true })
+    window.addEventListener('scroll', handleScroll, { capture: true, passive: true })
+    document.addEventListener('visibilitychange', handleVisibilityChange)
+    options.canvas.value?.addEventListener('webglcontextlost', handleContextLost)
+    options.canvas.value?.addEventListener('webglcontextrestored', handleContextRestored)
+  }
+
+  function removeEvents() {
+    window.removeEventListener('pointermove', handlePointerMove)
+    window.removeEventListener('resize', resizeRenderer)
+    window.removeEventListener('scroll', handleScroll, true)
+    document.removeEventListener('visibilitychange', handleVisibilityChange)
+    options.canvas.value?.removeEventListener('webglcontextlost', handleContextLost)
+    options.canvas.value?.removeEventListener('webglcontextrestored', handleContextRestored)
+  }
+
+  function disposeRenderer(releaseContext = true) {
+    loadVersion += 1
+    contextRecoveryPending = false
+    cancelScheduledFrame()
+    if (surfaceUpdateFrame !== null) {
+      cancelAnimationFrame(surfaceUpdateFrame)
+      surfaceUpdateFrame = null
+    }
+    if (surfaceResizeTimer !== null) {
+      window.clearTimeout(surfaceResizeTimer)
+      surfaceResizeTimer = null
+    }
+    if (scrollSurfaceTimer !== null) {
+      window.clearTimeout(scrollSurfaceTimer)
+      scrollSurfaceTimer = null
+    }
+    removeEvents()
+    resizeObserver?.disconnect()
+    resizeObserver = null
+    surfaceMutationObserver?.disconnect()
+    surfaceMutationObserver = null
+    observedSurfaces = []
+    currentRects = []
+    tracksScrollingSurfaces = false
+    activeTexture?.dispose()
+    activeTexture = null
+    activeTextureHeight = 1
+    activeTextureWidth = 1
+
+    if (resources) {
+      resources.geometry.dispose()
+      resources.material.dispose()
+      resources.renderer.dispose()
+      if (releaseContext) resources.renderer.forceContextLoss()
+      resources = null
+    }
+
+    delete document.documentElement.dataset.glassRendererState
+  }
+
+  /** 只有当前加载代次可以处置共享 renderer，过期请求的失败不会覆盖新状态。 */
+  function fallbackFromCurrentLoad(version: number, message: string, error: unknown) {
+    if (version !== loadVersion) return
+
+    console.warn(message, error)
+    disposeRenderer()
+    setGlassRendererState(state, 'fallback')
+  }
+
+  async function loadWallpaper(url: string, version: number) {
+    if (!resources || !three || !url) return
+
+    const profile = getGlassOpticalRenderProfile(toValue(options.quality), toValue(options.routeKey))
+    const shouldUseProceduralTexture =
+      profile.textureSource === 'procedural' ||
+      (profile.textureSource === 'auto' && !canUseGlassWallpaperTexture(url, window.location.href))
+    if (shouldUseProceduralTexture) {
+      const textureCanvas = document.createElement('canvas')
+      textureCanvas.width = 1
+      textureCanvas.height = 1
+      const texture = new three.CanvasTexture(textureCanvas)
+      texture.colorSpace = three.SRGBColorSpace
+      texture.generateMipmaps = false
+      texture.minFilter = three.LinearFilter
+      texture.magFilter = three.LinearFilter
+      activeTexture?.dispose()
+      activeTexture = texture
+      activeTextureHeight = 1
+      activeTextureWidth = 1
+      resources.uniforms.uTexture.value = texture
+      resources.uniforms.uHasWallpaperTexture.value = 0
+      await resources.renderer.compileAsync(resources.scene, resources.camera)
+      if (version !== loadVersion || !resources) return
+
+      setGlassRendererState(state, 'ready')
+      scheduleFrame()
+      return
+    }
+
+    const loader = new three.TextureLoader()
+    loader.setCrossOrigin('anonymous')
+    const sourceTexture = await loader.loadAsync(url)
+    if (version !== loadVersion || !resources) {
+      sourceTexture.dispose()
+      return
+    }
+
+    const image = sourceTexture.image as HTMLImageElement
+    const sourceWidth = image.naturalWidth || image.width
+    const sourceHeight = image.naturalHeight || image.height
+    const { textureLimit } = profile
+    const scale = Math.min(1, textureLimit / Math.max(sourceWidth, sourceHeight))
+    const textureCanvas = document.createElement('canvas')
+    textureCanvas.width = Math.max(1, Math.round(sourceWidth * scale))
+    textureCanvas.height = Math.max(1, Math.round(sourceHeight * scale))
+    const textureContext = textureCanvas.getContext('2d')
+    let texture: Texture
+    let textureWidth = sourceWidth
+    let textureHeight = sourceHeight
+
+    if (textureContext) {
+      textureContext.drawImage(image, 0, 0, textureCanvas.width, textureCanvas.height)
+      sourceTexture.dispose()
+      texture = new three.CanvasTexture(textureCanvas)
+      textureWidth = textureCanvas.width
+      textureHeight = textureCanvas.height
+    } else {
+      texture = sourceTexture
+    }
+
+    texture.colorSpace = three.SRGBColorSpace
+    texture.generateMipmaps = false
+    texture.minFilter = three.LinearFilter
+    texture.magFilter = three.LinearFilter
+    activeTexture?.dispose()
+    activeTexture = texture
+    activeTextureHeight = textureHeight
+    activeTextureWidth = textureWidth
+    resources.uniforms.uTexture.value = texture
+    resources.uniforms.uHasWallpaperTexture.value = 1
+
+    syncCoverScale()
+    await resources.renderer.compileAsync(resources.scene, resources.camera)
+    if (version !== loadVersion || !resources) return
+
+    setGlassRendererState(state, 'ready')
+    scheduleFrame()
+  }
+
+  async function initializeRenderer(releaseContext = true) {
+    disposeRenderer(releaseContext)
+    if (!toValue(options.active) || !options.canvas.value) return
+
+    if (!window.WebGLRenderingContext || reducedTransparencyQuery.matches || !toValue(options.wallpaperUrl)) {
+      setGlassRendererState(state, 'fallback')
+      return
+    }
+
+    setGlassRendererState(state, 'loading')
+    const version = ++loadVersion
+
+    try {
+      three = await import('three')
+      if (version !== loadVersion || !options.canvas.value) return
+      const Vector4Class = three.Vector4
+
+      const renderer = new three.WebGLRenderer({
+        alpha: true,
+        antialias: false,
+        canvas: options.canvas.value,
+        powerPreference: 'low-power',
+        premultipliedAlpha: true,
+      })
+      renderer.setClearColor(0x000000, 0)
+      renderer.setPixelRatio(1)
+
+      const geometry = new three.BufferGeometry()
+      geometry.setAttribute('position', new three.Float32BufferAttribute([-1, -1, 0, 3, -1, 0, -1, 3, 0], 3))
+      const uniforms: GlassRendererUniforms = {
+        uAppearance: { value: getGlassAppearanceUniformValue(toValue(options.appearance)) },
+        uCoverScale: { value: new three.Vector2(1, 1) },
+        uHasWallpaperTexture: { value: 0 },
+        uPointer: { value: new three.Vector2(0.5, 0.5) },
+        uQuality: { value: toValue(options.quality) === 'high' ? 1 : 0 },
+        uRadii: { value: Array.from({ length: 8 }, () => 0) },
+        uRectCount: { value: 0 },
+        uRects: { value: Array.from({ length: 8 }, () => new Vector4Class()) },
+        uTexture: { value: null },
+        uTintColor: { value: new three.Color(toValue(options.tintColor)) },
+        uTime: { value: 0 },
+        uViewportSize: { value: new three.Vector2(window.innerWidth, window.innerHeight) },
+      }
+      const material = new three.ShaderMaterial({
+        depthTest: false,
+        depthWrite: false,
+        fragmentShader: FRAGMENT_SHADER,
+        transparent: true,
+        uniforms,
+        vertexShader: VERTEX_SHADER,
+      })
+      const scene = new three.Scene()
+      const camera = new three.OrthographicCamera(-1, 1, 1, -1, 0, 1)
+      const mesh = new three.Mesh(geometry, material)
+      mesh.frustumCulled = false
+      scene.add(mesh)
+      resources = { camera, geometry, material, mesh, renderer, scene, uniforms }
+
+      setupObservers()
+      setupEvents()
+      resizeRenderer()
+      await loadWallpaper(toValue(options.wallpaperUrl), version)
+    } catch (error) {
+      fallbackFromCurrentLoad(version, '玻璃光学渲染器初始化失败，已回退标准材质:', error)
+    }
+  }
+
+  /** 运行中切换减少透明度时立即释放或恢复光学资源。 */
+  function handleReducedTransparencyChange(event: MediaQueryListEvent) {
+    if (!toValue(options.active)) return
+
+    if (event.matches) {
+      disposeRenderer()
+      setGlassRendererState(state, 'fallback')
+      return
+    }
+
+    void initializeRenderer()
+  }
+
+  const reducedTransparencyQuery = matchMedia('(prefers-reduced-transparency: reduce)')
+  reducedTransparencyQuery.addEventListener('change', handleReducedTransparencyChange)
+
+  watch(
+    () => [toValue(options.active), toValue(options.wallpaperUrl)] as const,
+    async ([active, wallpaperUrl], previous) => {
+      if (!active) {
+        disposeRenderer()
+        return
+      }
+
+      await nextTick()
+      if (!resources) {
+        await initializeRenderer()
+        return
+      }
+
+      if (wallpaperUrl !== previous?.[1]) {
+        const version = ++loadVersion
+        setGlassRendererState(state, 'loading')
+
+        try {
+          await loadWallpaper(wallpaperUrl, version)
+        } catch (error) {
+          fallbackFromCurrentLoad(version, '玻璃光学壁纸纹理加载失败，已回退标准材质:', error)
+        }
+      }
+    },
+    { immediate: true },
+  )
+
+  watch(
+    () => toValue(options.appearance),
+    appearance => {
+      if (!resources) return
+
+      resources.uniforms.uAppearance.value = getGlassAppearanceUniformValue(appearance)
+      scheduleFrame()
+    },
+  )
+
+  watch(
+    () => toValue(options.quality),
+    async quality => {
+      if (!resources) return
+
+      resources.uniforms.uQuality.value = quality === 'high' ? 1 : 0
+      resizeRenderer()
+      const version = ++loadVersion
+      setGlassRendererState(state, 'loading')
+
+      try {
+        await loadWallpaper(toValue(options.wallpaperUrl), version)
+      } catch (error) {
+        fallbackFromCurrentLoad(version, '玻璃质量纹理切换失败，已回退标准材质:', error)
+      }
+    },
+  )
+
+  watch(
+    () => toValue(options.tintColor),
+    tintColor => {
+      if (!resources) return
+
+      resources.uniforms.uTintColor.value.set(tintColor)
+      scheduleFrame()
+    },
+  )
+
+  watch(
+    () => toValue(options.routeKey),
+    async (routeKey, previousRouteKey) => {
+      await nextTick()
+      if (resources) {
+        const previousProfile = getGlassOpticalRenderProfile(toValue(options.quality), previousRouteKey ?? '')
+        const nextProfile = getGlassOpticalRenderProfile(toValue(options.quality), routeKey)
+        resizeRenderer()
+
+        if (
+          previousProfile.bufferQuality !== nextProfile.bufferQuality ||
+          previousProfile.textureLimit !== nextProfile.textureLimit ||
+          previousProfile.textureSource !== nextProfile.textureSource
+        ) {
+          const version = ++loadVersion
+          setGlassRendererState(state, 'loading')
+
+          try {
+            await loadWallpaper(toValue(options.wallpaperUrl), version)
+          } catch (error) {
+            fallbackFromCurrentLoad(version, '玻璃场景纹理切换失败，已回退标准材质:', error)
+          }
+          return
+        }
+      }
+      scheduleSurfaceUpdate()
+    },
+  )
+
+  onScopeDispose(() => {
+    reducedTransparencyQuery.removeEventListener('change', handleReducedTransparencyChange)
+    disposeRenderer()
+  })
+
+  return {
+    renderedFrames,
+    state,
+  }
+}
diff --git a/src/composables/useThemeCustomizer.ts b/src/composables/useThemeCustomizer.ts
index 174d932f..859fa3a4 100644
--- a/src/composables/useThemeCustomizer.ts
+++ b/src/composables/useThemeCustomizer.ts
@@ -54,24 +54,39 @@ export const themeCustomizerShadowLevels = [
 ] as const
 
 export type ThemeCustomizerLayout = 'collapsed' | 'horizontal' | 'vertical'
+export type ThemeCustomizerGlassAppearance = 'clear' | 'frosted' | 'tinted'
+export type ThemeCustomizerGlassQuality = 'balanced' | 'css' | 'high'
 export type ThemeCustomizerRadius = 'default' | 'extra' | 'large' | 'none' | 'small'
 export type ThemeCustomizerShadow = (typeof themeCustomizerShadowLevels)[number]
 export type ThemeCustomizerSkin = 'bordered' | 'default'
 export type ThemeCustomizerTheme = 'auto' | 'dark' | 'glass' | 'light' | 'purple' | 'transparent'
 
 export interface ThemeCustomizerSettings {
+  /** 玻璃主题的材质语义，与渲染质量保持独立。 */
+  glassAppearance: ThemeCustomizerGlassAppearance
+  /** 玻璃主题的渲染质量，决定使用标准 CSS 或共享光学渲染器。 */
+  glassQuality: ThemeCustomizerGlassQuality
+  /** 桌面导航布局。 */
   layout: ThemeCustomizerLayout
+  /** 主题强调色，也是色调玻璃的颜色来源。 */
   primaryColor: string
+  /** 全局表面圆角档位。 */
   radius: ThemeCustomizerRadius
+  /** 浅色主题是否使用半深色侧栏。 */
   semiDarkMenu: boolean
+  /** 非玻璃主题的表面阴影档位。 */
   shadow: ThemeCustomizerShadow
+  /** 非玻璃主题的边框皮肤。 */
   skin: ThemeCustomizerSkin
+  /** 用户选择的主题偏好。 */
   theme: ThemeCustomizerTheme
 }
 
 type VuetifyThemeApi = ReturnType<typeof useTheme>
 
 const defaultPrimaryColor = themeCustomizerPrimaryColors[0].value
+const validGlassAppearances: ThemeCustomizerGlassAppearance[] = ['clear', 'tinted', 'frosted']
+const validGlassQualities: ThemeCustomizerGlassQuality[] = ['css', 'balanced', 'high']
 const validLayouts: ThemeCustomizerLayout[] = ['vertical', 'collapsed', 'horizontal']
 const validRadii: ThemeCustomizerRadius[] = ['none', 'small', 'default', 'large', 'extra']
 const validShadows: readonly ThemeCustomizerShadow[] = themeCustomizerShadowLevels
@@ -108,6 +123,8 @@ function readStoredThemePreference(): ThemeCustomizerTheme {
 /** 生成与当前主题偏好一致的定制器默认设置。 */
 function getDefaultThemeCustomizerSettings(): ThemeCustomizerSettings {
   return {
+    glassAppearance: 'clear',
+    glassQuality: 'css',
     layout: 'vertical',
     primaryColor: defaultPrimaryColor,
     radius: 'default',
@@ -134,13 +151,17 @@ function normalizeThemeCustomizerSettings(settings: Partial<ThemeCustomizerSetti
   const primaryColor = isHexColor(settings.primaryColor) ? settings.primaryColor.toUpperCase() : fallback.primaryColor
 
   return {
+    glassAppearance: validGlassAppearances.includes(settings.glassAppearance as ThemeCustomizerGlassAppearance)
+      ? (settings.glassAppearance as ThemeCustomizerGlassAppearance)
+      : fallback.glassAppearance,
+    glassQuality: validGlassQualities.includes(settings.glassQuality as ThemeCustomizerGlassQuality)
+      ? (settings.glassQuality as ThemeCustomizerGlassQuality)
+      : fallback.glassQuality,
     layout: validLayouts.includes(settings.layout as ThemeCustomizerLayout)
       ? (settings.layout as ThemeCustomizerLayout)
       : fallback.layout,
     primaryColor,
-    radius: validRadii.includes(radius as ThemeCustomizerRadius)
-      ? (radius as ThemeCustomizerRadius)
-      : fallback.radius,
+    radius: validRadii.includes(radius as ThemeCustomizerRadius) ? (radius as ThemeCustomizerRadius) : fallback.radius,
     semiDarkMenu: typeof settings.semiDarkMenu === 'boolean' ? settings.semiDarkMenu : fallback.semiDarkMenu,
     shadow: normalizeThemeCustomizerShadow(settings.shadow),
     skin: validSkins.includes(settings.skin as ThemeCustomizerSkin)
@@ -175,6 +196,16 @@ export function readThemeCustomizerSettings(): ThemeCustomizerSettings {
 
 // 生产构建会改写导出函数的声明形式，状态初始化必须放在读取函数定义之后，避免首屏执行时引用未完成赋值的函数。
 const settingsState = ref<ThemeCustomizerSettings>(readThemeCustomizerSettings())
+const glassPreviewState = ref<Pick<ThemeCustomizerSettings, 'glassAppearance' | 'glassQuality'> | null>(null)
+const effectiveGlassSettings = computed(() => ({
+  glassAppearance: glassPreviewState.value?.glassAppearance ?? settingsState.value.glassAppearance,
+  glassQuality: glassPreviewState.value?.glassQuality ?? settingsState.value.glassQuality,
+}))
+
+/** 提供当前实际生效的玻璃外观；临时预览优先于已持久化设置。 */
+export function useEffectiveGlassSettings() {
+  return readonly(effectiveGlassSettings)
+}
 
 /** 将完整主题定制设置写入本地存储。 */
 function persistThemeCustomizerSettings(settings: ThemeCustomizerSettings) {
@@ -223,17 +254,24 @@ export function applyPrimaryColorToVuetify(color: string, themeApi: VuetifyTheme
   syncThemeFavicon(activePrimaryColor)
 }
 
-/** 布局、圆角、阴影、皮肤和局部菜单风格只依赖根节点属性，CSS 可以在不刷新页面的情况下即时响应。 */
+/** 将外观设置同步为根节点属性，使主题 CSS 无需刷新即可响应。 */
 export function applyThemeCustomizerRootSettings(
-  settings: Pick<ThemeCustomizerSettings, 'layout' | 'radius' | 'semiDarkMenu' | 'shadow' | 'skin'>,
+  settings: Pick<
+    ThemeCustomizerSettings,
+    'glassAppearance' | 'glassQuality' | 'layout' | 'radius' | 'semiDarkMenu' | 'shadow' | 'skin'
+  >,
 ) {
   if (!isBrowser()) return
 
+  document.documentElement.setAttribute('data-glass-appearance', settings.glassAppearance)
+  document.documentElement.setAttribute('data-glass-quality', settings.glassQuality)
   document.documentElement.setAttribute('data-theme-layout', settings.layout)
   document.documentElement.setAttribute('data-theme-radius', settings.radius)
   document.documentElement.setAttribute('data-theme-semi-dark-menu', String(settings.semiDarkMenu))
   document.documentElement.setAttribute('data-theme-shadow', settings.shadow)
   document.documentElement.setAttribute('data-theme-skin', settings.skin)
+  document.body.setAttribute('data-glass-appearance', settings.glassAppearance)
+  document.body.setAttribute('data-glass-quality', settings.glassQuality)
   document.body.setAttribute('data-theme-layout', settings.layout)
   document.body.setAttribute('data-theme-radius', settings.radius)
   document.body.setAttribute('data-theme-semi-dark-menu', String(settings.semiDarkMenu))
@@ -276,6 +314,7 @@ async function applyThemePreference(themePreference: ThemeCustomizerTheme, theme
 export function applyStoredThemeCustomizerAppearance(themeApi: VuetifyThemeApi) {
   const settings = readThemeCustomizerSettings()
 
+  glassPreviewState.value = null
   settingsState.value = settings
   applyPrimaryColorToVuetify(settings.primaryColor, themeApi)
   applyThemeCustomizerRootSettings(settings)
@@ -290,6 +329,7 @@ export function persistPartialThemeCustomizerSettings(patch: Partial<ThemeCustom
     ...patch,
   })
 
+  glassPreviewState.value = null
   settingsState.value = nextSettings
   persistThemeCustomizerSettings(nextSettings)
   applyPrimaryColorToVuetify(nextSettings.primaryColor, vuetify.theme)
@@ -299,9 +339,54 @@ export function persistPartialThemeCustomizerSettings(patch: Partial<ThemeCustom
   return nextSettings
 }
 
+/** 临时应用玻璃外观，不写入存储或广播持久化变更。 */
+export function previewGlassSettings(
+  patch: Partial<Pick<ThemeCustomizerSettings, 'glassAppearance' | 'glassQuality'>>,
+) {
+  const previewSettings = normalizeThemeCustomizerSettings({
+    ...settingsState.value,
+    ...glassPreviewState.value,
+    ...patch,
+  })
+
+  glassPreviewState.value = {
+    glassAppearance: previewSettings.glassAppearance,
+    glassQuality: previewSettings.glassQuality,
+  }
+  applyThemeCustomizerRootSettings({
+    ...settingsState.value,
+    ...glassPreviewState.value,
+  })
+
+  return glassPreviewState.value
+}
+
+/** 将当前玻璃预览作为一个设置事务持久化，避免外观与质量分步提交。 */
+export function commitGlassPreview() {
+  const previewSettings = glassPreviewState.value
+
+  if (!previewSettings) return settingsState.value
+
+  glassPreviewState.value = null
+
+  return persistPartialThemeCustomizerSettings(previewSettings)
+}
+
+/** 丢弃临时玻璃预览并恢复已保存设置。 */
+export function cancelGlassPreview() {
+  if (!glassPreviewState.value) return settingsState.value
+
+  glassPreviewState.value = null
+  applyThemeCustomizerRootSettings(settingsState.value)
+
+  return settingsState.value
+}
+
 /** 判断当前主题定制设置是否仍为默认值。 */
 export function isDefaultThemeCustomizerSettings(settings: ThemeCustomizerSettings) {
   const defaults = normalizeThemeCustomizerSettings({
+    glassAppearance: 'clear',
+    glassQuality: 'css',
     layout: 'vertical',
     primaryColor: defaultPrimaryColor,
     radius: 'default',
@@ -312,6 +397,8 @@ export function isDefaultThemeCustomizerSettings(settings: ThemeCustomizerSettin
   })
 
   return (
+    settings.glassAppearance === defaults.glassAppearance &&
+    settings.glassQuality === defaults.glassQuality &&
     settings.layout === defaults.layout &&
     settings.primaryColor === defaults.primaryColor &&
     settings.radius === defaults.radius &&
@@ -335,6 +422,7 @@ export function useThemeCustomizer() {
       ...patch,
     })
 
+    glassPreviewState.value = null
     settings.value = nextSettings
     persistThemeCustomizerSettings(nextSettings)
     applyPrimaryColorToVuetify(nextSettings.primaryColor, themeApi)
@@ -355,6 +443,16 @@ export function useThemeCustomizer() {
     return updateSettings({ primaryColor: color })
   }
 
+  /** 更新玻璃主题材质，不隐式改变渲染质量。 */
+  function setGlassAppearance(glassAppearance: ThemeCustomizerGlassAppearance) {
+    return updateSettings({ glassAppearance })
+  }
+
+  /** 更新玻璃主题渲染质量档位。 */
+  function setGlassQuality(glassQuality: ThemeCustomizerGlassQuality) {
+    return updateSettings({ glassQuality })
+  }
+
   /** 更新全局圆角档位。 */
   function setRadius(radius: ThemeCustomizerRadius) {
     return updateSettings({ radius })
@@ -388,6 +486,8 @@ export function useThemeCustomizer() {
   /** 将主题定制器恢复到默认设置。 */
   async function resetSettings() {
     await updateSettings({
+      glassAppearance: 'clear',
+      glassQuality: 'css',
       layout: 'vertical',
       primaryColor: defaultPrimaryColor,
       radius: 'default',
@@ -423,6 +523,8 @@ export function useThemeCustomizer() {
   return {
     isCustomized: computed(() => !isDefaultThemeCustomizerSettings(settings.value)),
     resetSettings,
+    setGlassAppearance,
+    setGlassQuality,
     setLayout,
     setPrimaryColor,
     setRadius,
diff --git a/src/layouts/default/components/UserProfile.vue b/src/layouts/default/components/UserProfile.vue
index eb12adcd..6478dc0f 100644
--- a/src/layouts/default/components/UserProfile.vue
+++ b/src/layouts/default/components/UserProfile.vue
@@ -27,6 +27,7 @@ import { buildUserPermissionContext, hasPermission } from '@/utils/permission'
 
 const AboutDialog = defineAsyncComponent(() => import('@/components/dialog/AboutDialog.vue'))
 const CustomCssDialog = defineAsyncComponent(() => import('@/components/dialog/CustomCssDialog.vue'))
+const GlassSettingsDialog = defineAsyncComponent(() => import('@/components/dialog/GlassSettingsDialog.vue'))
 const ProgressDialog = defineAsyncComponent(() => import('@/components/dialog/ProgressDialog.vue'))
 const TransparencySettingsDialog = defineAsyncComponent(
   () => import('@/components/dialog/TransparencySettingsDialog.vue'),
@@ -63,6 +64,7 @@ const showLanguageMenu = ref(false)
 const customCSS = ref('')
 
 const isTransparentTheme = computed(() => currentThemeName.value === 'transparent')
+const isGlassTheme = computed(() => currentThemeName.value === 'glass')
 
 // 重启轮询控制标识
 const restartPollingId = ref<number | null>(null)
@@ -445,6 +447,11 @@ function showTransparencySettingsDialog() {
   openSharedDialog(TransparencySettingsDialog, {}, {}, { closeOn: ['close', 'update:modelValue'] })
 }
 
+/** 打开玻璃主题的外观与质量设置共享弹窗。 */
+function showGlassSettingsDialog() {
+  openSharedDialog(GlassSettingsDialog, {}, {}, { closeOn: ['close', 'update:modelValue'] })
+}
+
 /** 从用户菜单打开主题定制器，App 模式会在面板内部隐藏布局设置。 */
 function showThemeCustomizerDrawer() {
   showUserMenu.value = false
@@ -700,6 +707,16 @@ onUnmounted(() => {
                 </VListItem>
               </template>
 
+              <VListItem v-else-if="isGlassTheme" @click="showGlassSettingsDialog">
+                <template #prepend>
+                  <VIcon icon="mdi-blur-radial" />
+                </template>
+                <VListItemTitle>{{ t('theme.glassSettings') }}</VListItemTitle>
+                <template #append>
+                  <VIcon icon="mdi-chevron-right" size="small" />
+                </template>
+              </VListItem>
+
               <VListItem v-if="canAdmin" @click="showCustomCssDialog">
                 <template #prepend>
                   <VIcon icon="mdi-palette" />
diff --git a/src/locales/en-US.ts b/src/locales/en-US.ts
index 94258181..4a92985f 100644
--- a/src/locales/en-US.ts
+++ b/src/locales/en-US.ts
@@ -147,6 +147,15 @@ export default {
     autoUI: 'Auto',
     transparent: 'Transparent',
     glass: 'Glass',
+    glassSettings: 'Glass Settings',
+    glassAppearance: 'Material',
+    glassAppearanceClear: 'Clear',
+    glassAppearanceTinted: 'Tinted',
+    glassAppearanceFrosted: 'Frosted',
+    glassQuality: 'Quality',
+    glassQualityCss: 'Standard',
+    glassQualityBalanced: 'Balanced',
+    glassQualityHigh: 'High',
     purple: 'Purple',
     custom: 'Custom Style',
     transparency: 'Transparency',
diff --git a/src/locales/zh-CN.ts b/src/locales/zh-CN.ts
index d98f8f1d..6f17999a 100644
--- a/src/locales/zh-CN.ts
+++ b/src/locales/zh-CN.ts
@@ -145,6 +145,15 @@ export default {
     autoUI: '自动',
     transparent: '透明',
     glass: '玻璃',
+    glassSettings: '玻璃设置',
+    glassAppearance: '材质',
+    glassAppearanceClear: '透明',
+    glassAppearanceTinted: '色调',
+    glassAppearanceFrosted: '磨砂',
+    glassQuality: '质量',
+    glassQualityCss: '标准',
+    glassQualityBalanced: '均衡',
+    glassQualityHigh: '高质量',
     purple: '幻紫',
     custom: '附加样式',
     transparency: '透明度',
diff --git a/src/locales/zh-TW.ts b/src/locales/zh-TW.ts
index c549f28b..b896f39f 100644
--- a/src/locales/zh-TW.ts
+++ b/src/locales/zh-TW.ts
@@ -145,6 +145,15 @@ export default {
     autoUI: '自動',
     transparent: '透明',
     glass: '玻璃',
+    glassSettings: '玻璃設定',
+    glassAppearance: '材質',
+    glassAppearanceClear: '透明',
+    glassAppearanceTinted: '色調',
+    glassAppearanceFrosted: '磨砂',
+    glassQuality: '品質',
+    glassQualityCss: '標準',
+    glassQualityBalanced: '均衡',
+    glassQualityHigh: '高品質',
     purple: '幻紫',
     custom: '附加樣式',
     transparency: '透明度',
diff --git a/src/pages/login.vue b/src/pages/login.vue
index 9bc84c6a..49b41531 100644
--- a/src/pages/login.vue
+++ b/src/pages/login.vue
@@ -62,6 +62,8 @@ function renderCardLight() {
   root?.style.setProperty('--login-card-highlight-alpha', (0.035 + pendingCardLightEnergy * 0.08).toFixed(3))
   root?.style.setProperty('--login-card-primary-alpha', (0.018 + pendingCardLightEnergy * 0.04).toFixed(3))
   root?.style.setProperty('--login-card-top-prism-alpha', (0.2 + pendingCardLightEnergy * 0.32).toFixed(3))
+  root?.style.setProperty('--login-refraction-shift-x', `${((0.5 - pendingCardLightX) * 8).toFixed(2)}px`)
+  root?.style.setProperty('--login-refraction-shift-y', `${((0.5 - pendingCardLightY) * 6).toFixed(2)}px`)
 }
 
 /** 根据指针在登录卡片中的位置更新光照目标。 */
@@ -762,12 +764,25 @@ onUnmounted(() => {
 
 <template>
   <!-- 登录页面容器 -->
-  <div
-    ref="loginRootRef"
-    class="login-root"
-    @pointermove="handlePointerLight"
-    @pointerleave="resetPointerLight"
-  >
+  <div ref="loginRootRef" class="login-root" @pointermove="handlePointerLight" @pointerleave="resetPointerLight">
+    <!-- SVG 位移只处理卡片内重复绘制的壁纸，不读取跨域图片像素。 -->
+    <svg class="login-liquid-filter-defs" aria-hidden="true" focusable="false">
+      <defs>
+        <filter
+          id="login-liquid-refraction-clear"
+          x="-8%"
+          y="-8%"
+          width="116%"
+          height="116%"
+          color-interpolation-filters="sRGB"
+        >
+          <feTurbulence type="fractalNoise" baseFrequency="0.009 0.014" numOctaves="2" seed="7" result="noise" />
+          <feGaussianBlur in="noise" stdDeviation="1.2" result="soft-noise" />
+          <feDisplacementMap in="SourceGraphic" in2="soft-noise" scale="24" xChannelSelector="R" yChannelSelector="G" />
+        </filter>
+      </defs>
+    </svg>
+
     <!-- 装饰性背景光晕 -->
     <div class="login-bg-decor" aria-hidden="true">
       <div class="login-orb login-orb--1" />
@@ -810,16 +825,13 @@ onUnmounted(() => {
         flat
       >
         <div class="login-card__glass" aria-hidden="true">
+          <span class="login-card__wallpaper-refraction" />
           <span class="login-card__glass-caustic" />
         </div>
 
         <!-- 卡片头部：Logo + 标题 + 欢迎语 -->
         <div class="login-head">
-          <OpticalLogoLab
-            class="login-logo"
-            :locale="currentLocale"
-            @logo-click="handleLabTap('logo')"
-          >
+          <OpticalLogoLab class="login-logo" :locale="currentLocale" @logo-click="handleLabTap('logo')">
             <h1 class="login-title" @click="handleLabTap('title')">MoviePilot</h1>
             <p class="login-subtitle">{{ t('login.welcomeBack') || 'Welcome Back' }}</p>
           </OpticalLogoLab>
@@ -988,6 +1000,8 @@ onUnmounted(() => {
   --login-card-highlight-alpha: 0.035;
   --login-card-primary-alpha: 0.018;
   --login-card-top-prism-alpha: 0.2;
+  --login-refraction-shift-x: 0px;
+  --login-refraction-shift-y: 3px;
   --optical-glass-x: 50%;
   --optical-glass-y: 22%;
   --optical-glass-blur: 24px;
@@ -1018,6 +1032,13 @@ onUnmounted(() => {
   padding-block: calc(env(safe-area-inset-top, 0px) + 24px) calc(env(safe-area-inset-bottom, 0px) + 24px);
 }
 
+.login-liquid-filter-defs {
+  position: absolute;
+  block-size: 0;
+  inline-size: 0;
+  pointer-events: none;
+}
+
 /* ===================== 装饰性背景光晕 ===================== */
 .login-bg-decor {
   position: absolute;
@@ -1142,12 +1163,7 @@ onUnmounted(() => {
     z-index: 4;
     border-radius: 999px;
     background:
-      radial-gradient(
-        ellipse at center,
-        rgba(255, 255, 255, 0.92),
-        rgba(232, 219, 255, 0.48) 28%,
-        transparent 72%
-      ),
+      radial-gradient(ellipse at center, rgba(255, 255, 255, 0.92), rgba(232, 219, 255, 0.48) 28%, transparent 72%),
       linear-gradient(
         90deg,
         transparent,
@@ -1189,8 +1205,7 @@ onUnmounted(() => {
       rgba(var(--v-theme-primary), var(--login-card-primary-alpha)) 44%,
       transparent 76%
     ),
-    linear-gradient(145deg, rgba(255, 255, 255, 0.075), transparent 34%),
-    rgba(var(--v-theme-surface), 0.7);
+    linear-gradient(145deg, rgba(255, 255, 255, 0.075), transparent 34%), rgba(var(--v-theme-surface), 0.7);
   inset: 0;
   pointer-events: none;
   transform: translateZ(0);
@@ -1198,6 +1213,7 @@ onUnmounted(() => {
 
 .login-card__glass::before {
   position: absolute;
+  z-index: 2;
   border-radius: 44% 56% 61% 39% / 42% 39% 61% 58%;
   background:
     radial-gradient(circle at 36% 32%, rgba(255, 255, 255, 0.2), transparent 24%),
@@ -1208,18 +1224,27 @@ onUnmounted(() => {
       transparent 38%,
       rgba(255, 255, 255, 0.09),
       transparent 72%
-  );
+    );
   content: '';
   filter: blur(var(--optical-glass-pulse-blur));
   inset: -28%;
   opacity: var(--optical-glass-glow-opacity);
-  transform: translate(var(--optical-glass-shift-x), var(--optical-glass-shift-y))
-    rotate(var(--optical-glass-rotation)) scale(var(--optical-glass-scale));
+  transform: translate(var(--optical-glass-shift-x), var(--optical-glass-shift-y)) rotate(var(--optical-glass-rotation))
+    scale(var(--optical-glass-scale));
   transition: opacity 220ms ease;
 }
 
+.login-card__wallpaper-refraction {
+  position: absolute;
+  z-index: 0;
+  display: none;
+  inset: -2%;
+  pointer-events: none;
+}
+
 .login-card__glass-caustic {
   position: absolute;
+  z-index: 3;
   display: block;
   border-radius: 50%;
   background: radial-gradient(
@@ -1633,6 +1658,10 @@ onUnmounted(() => {
 }
 
 @media (prefers-reduced-transparency: reduce) {
+  .login-card__wallpaper-refraction {
+    display: none !important;
+  }
+
   .login-card__glass,
   .native-login-field {
     backdrop-filter: none !important;
@@ -1650,7 +1679,11 @@ onUnmounted(() => {
   }
 }
 
-@supports not ((backdrop-filter: blur(1px))) {
+@supports not (backdrop-filter: blur(1px)) {
+  .login-card__wallpaper-refraction {
+    display: none !important;
+  }
+
   .login-card__glass,
   .native-login-field {
     background: rgba(var(--v-theme-surface), 0.96) !important;
diff --git a/src/styles/themes/glass.scss b/src/styles/themes/glass.scss
index f2d0972d..3de5f795 100644
--- a/src/styles/themes/glass.scss
+++ b/src/styles/themes/glass.scss
@@ -1,35 +1,72 @@
 /* stylelint-disable no-descending-specificity */
 /* stylelint-disable scss/at-rule-no-unknown */
 
-// 玻璃主题通过 Vuetify 全局表面类统一塑造材质，业务页面无需逐个接入。
+// 材质只覆盖统一表面 token；质量档只替换光学层，不改变业务组件契约。
 html[data-theme='glass'] {
-  --glass-surface: rgba(255, 255, 255, 8%);
-  --glass-surface-soft: rgba(255, 255, 255, 5%);
-  --glass-surface-raised: rgba(255, 255, 255, 12%);
-  --glass-border: rgba(255, 255, 255, 15%);
-  --glass-border-hover: rgba(255, 255, 255, 28%);
-  --glass-highlight: rgba(255, 255, 255, 22%);
+  --glass-surface: rgba(11, 19, 34, 22%);
+  --glass-surface-soft: rgba(11, 19, 34, 28%);
+  --glass-surface-raised: rgba(11, 19, 34, 36%);
+  --glass-control: rgba(11, 19, 34, 52%);
+  --glass-control-prominent: rgba(255, 255, 255, 7%);
+  --glass-control-prominent-focus: color-mix(in srgb, rgba(255, 255, 255, 10%) 84%, rgba(var(--v-theme-primary), 24%));
+  --glass-border: rgba(255, 255, 255, 10%);
+  --glass-border-raised: rgba(255, 255, 255, 14%);
+  --glass-border-hover: rgba(255, 255, 255, 20%);
+  --glass-control-prominent-border: rgba(255, 255, 255, 14%);
+  --glass-highlight: rgba(255, 255, 255, 14%);
+  --glass-sheen: linear-gradient(
+    135deg,
+    rgba(255, 255, 255, 9%),
+    transparent 28%,
+    rgba(255, 255, 255, 3%) 72%,
+    transparent
+  );
   --glass-shadow:
-    0 6px 18px rgba(3, 7, 18, 28%), inset 0 1px 0 rgba(255, 255, 255, 18%), inset 0 -1px 0 rgba(2, 6, 16, 22%);
+    0 10px 28px rgba(3, 7, 18, 24%), inset 0 1px 0 var(--glass-highlight), inset 0 -1px 0 rgba(2, 6, 16, 14%);
   --glass-shadow-raised:
-    0 10px 28px rgba(3, 7, 18, 34%), 0 0 0 1px rgba(255, 255, 255, 4%), inset 0 1px 0 rgba(255, 255, 255, 22%),
-    inset 0 -1px 0 rgba(2, 6, 16, 26%);
+    0 16px 40px rgba(3, 7, 18, 32%), inset 0 1px 0 rgba(255, 255, 255, 24%), inset 0 -1px 0 rgba(2, 6, 16, 18%);
   --glass-shadow-hover:
-    0 12px 32px rgba(3, 7, 18, 38%), 0 0 0 1px rgba(255, 255, 255, 6%), inset 0 1px 0 rgba(255, 255, 255, 27%),
-    inset 0 -1px 0 rgba(2, 6, 16, 28%);
+    0 18px 44px rgba(3, 7, 18, 36%), inset 0 1px 0 rgba(255, 255, 255, 28%), inset 0 -1px 0 rgba(2, 6, 16, 18%);
   --glass-navbar-shadow:
     0 3px 12px rgba(3, 7, 18, 18%), inset 0 1px 0 rgba(255, 255, 255, 10%), inset 0 -1px 0 rgba(2, 6, 16, 12%);
-  --glass-blur: 24px;
+  --glass-control-shadow: inset 0 1px 0 rgba(255, 255, 255, 12%), inset 0 -1px 0 rgba(2, 6, 16, 14%);
+  --glass-control-shadow-hover: inset 0 1px 0 rgba(255, 255, 255, 18%), inset 0 -1px 0 rgba(2, 6, 16, 12%);
+  --glass-control-shadow-active: inset 0 1px 0 rgba(255, 255, 255, 7%), inset 0 -1px 0 rgba(2, 6, 16, 20%);
+  --glass-control-prominent-shadow: inset 0 1px 0 rgba(255, 255, 255, 18%), inset 0 -1px 0 rgba(2, 6, 16, 18%);
+  --glass-control-prominent-focus-shadow:
+    0 0 0 2px rgba(var(--v-theme-primary), 16%), inset 0 1px 0 rgba(255, 255, 255, 24%),
+    inset 0 -1px 0 rgba(2, 6, 16, 16%);
+  --glass-surface-backdrop-filter: none;
+  --glass-raised-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
+  --glass-control-backdrop-filter: none;
+  --glass-control-prominent-backdrop-filter: blur(20px) saturate(var(--glass-saturate));
+  --glass-control-icon-color: rgba(242, 245, 250, 70%);
+  --glass-control-placeholder-color: rgba(242, 245, 250, 54%);
+  --glass-control-shortcut-background: rgba(255, 255, 255, 8%);
+  --glass-control-shortcut-border: rgba(255, 255, 255, 12%);
+  --glass-control-shortcut-color: rgba(242, 245, 250, 68%);
+  --glass-button-surface: rgba(255, 255, 255, 8%);
+  --glass-button-surface-hover: rgba(255, 255, 255, 12%);
+  --glass-nav-active-background: linear-gradient(
+    90deg,
+    rgba(var(--v-theme-primary), 22%),
+    rgba(var(--v-theme-primary), 48%)
+  );
+  --glass-nav-active-border: 1px solid rgba(var(--v-theme-primary), 36%);
+  --glass-nav-active-shadow: inset 0 1px 0 rgba(255, 255, 255, 14%);
+  --glass-dashboard-backdrop-filter: none;
+  --glass-blur-surface: 16px;
+  --glass-blur: 22px;
   --glass-blur-raised: 32px;
-  --glass-saturate: 150%;
-  --glass-motion: 500ms cubic-bezier(0.16, 1, 0.3, 1);
+  --glass-saturate: 145%;
+  --glass-motion: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
   --app-card-rest-shadow: var(--glass-shadow);
   --app-card-hover-shadow: var(--glass-shadow-hover);
-  --app-fab-shadow: var(--glass-shadow);
-  --app-fab-shadow-strong: var(--glass-shadow-raised);
-  --app-fab-shadow-hover: var(--glass-shadow-hover);
-  --app-fab-shadow-strong-hover: var(--glass-shadow-hover);
-  --app-fab-shadow-active: 0 3px 10px rgba(3, 7, 18, 24%), inset 0 1px 0 rgba(255, 255, 255, 16%);
+  --app-fab-shadow: var(--glass-control-shadow);
+  --app-fab-shadow-strong: var(--glass-control-shadow-hover);
+  --app-fab-shadow-hover: var(--glass-control-shadow-hover);
+  --app-fab-shadow-strong-hover: var(--glass-control-shadow-hover);
+  --app-fab-shadow-active: var(--glass-control-shadow-active);
   --app-overlay-shadow: var(--glass-shadow-raised);
   --app-surface-shadow: var(--glass-shadow);
   --app-surface-hover-shadow: var(--glass-shadow-hover);
@@ -41,16 +78,16 @@ html[data-theme='glass'] {
   --app-card-light-border: 1px solid var(--glass-border);
   --app-overlay-border: 1px solid var(--glass-border);
   --app-grouped-list-background: var(--glass-surface);
-  --app-grouped-list-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+  --app-grouped-list-backdrop-filter: none;
   --app-grouped-list-border: 1px solid var(--glass-border);
   --app-grouped-list-separator-color: rgba(255, 255, 255, 10%);
   --app-grouped-list-header-color: rgba(242, 245, 250, 68%);
   --app-grouped-list-chevron-color: rgba(242, 245, 250, 56%);
   --app-grouped-list-hover-background: rgba(255, 255, 255, 8%);
   --app-grouped-list-active-background: rgba(var(--v-theme-primary), 16%);
-  --mp-motion-duration-page: 500ms;
-  --mp-motion-duration-overlay: 500ms;
-  --mp-motion-ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
+  --mp-motion-duration-page: 180ms;
+  --mp-motion-duration-overlay: 180ms;
+  --mp-motion-ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
 
   background-color: #0b1322;
   color-scheme: dark;
@@ -59,6 +96,77 @@ html[data-theme='glass'] {
     background-color: #0b1322;
   }
 
+  // 色调保持与透明材质接近的透光度，只叠加主色语义。
+  &[data-glass-appearance='tinted'] {
+    --glass-surface: color-mix(in srgb, rgba(11, 19, 34, 24%) 88%, rgba(var(--v-theme-primary), 28%));
+    --glass-surface-soft: color-mix(in srgb, rgba(11, 19, 34, 30%) 89%, rgba(var(--v-theme-primary), 26%));
+    --glass-surface-raised: color-mix(in srgb, rgba(11, 19, 34, 38%) 84%, rgba(var(--v-theme-primary), 32%));
+    --glass-control: color-mix(in srgb, rgba(11, 19, 34, 52%) 88%, rgba(var(--v-theme-primary), 28%));
+    --glass-control-prominent: color-mix(in srgb, rgba(255, 255, 255, 7%) 82%, rgba(var(--v-theme-primary), 24%));
+    --glass-control-prominent-focus: color-mix(
+      in srgb,
+      rgba(255, 255, 255, 10%) 76%,
+      rgba(var(--v-theme-primary), 32%)
+    );
+    --glass-border: color-mix(in srgb, rgba(255, 255, 255, 10%) 82%, rgba(var(--v-theme-primary), 26%));
+    --glass-border-raised: color-mix(in srgb, rgba(255, 255, 255, 14%) 80%, rgba(var(--v-theme-primary), 30%));
+    --glass-border-hover: color-mix(in srgb, rgba(255, 255, 255, 20%) 78%, rgba(var(--v-theme-primary), 36%));
+    --glass-control-prominent-border: color-mix(
+      in srgb,
+      rgba(255, 255, 255, 14%) 78%,
+      rgba(var(--v-theme-primary), 32%)
+    );
+    --glass-highlight: color-mix(in srgb, rgba(255, 255, 255, 14%) 86%, rgba(var(--v-theme-primary), 18%));
+    --glass-sheen: linear-gradient(
+      135deg,
+      rgba(255, 255, 255, 9%),
+      transparent 28%,
+      rgba(var(--v-theme-primary), 6%) 72%,
+      transparent
+    );
+  }
+
+  // 磨砂材质使用更亮的散射表面，但仍只让高价值层执行实时背景采样。
+  &[data-glass-appearance='frosted'] {
+    --glass-surface: rgba(255, 255, 255, 8%);
+    --glass-surface-soft: rgba(255, 255, 255, 7%);
+    --glass-surface-raised: rgba(255, 255, 255, 12%);
+    --glass-control: rgba(255, 255, 255, 9%);
+    --glass-control-prominent: rgba(255, 255, 255, 10%);
+    --glass-control-prominent-focus: rgba(255, 255, 255, 13%);
+    --glass-border: rgba(255, 255, 255, 15%);
+    --glass-border-raised: rgba(255, 255, 255, 18%);
+    --glass-border-hover: rgba(255, 255, 255, 28%);
+    --glass-control-prominent-border: rgba(255, 255, 255, 18%);
+    --glass-highlight: rgba(255, 255, 255, 22%);
+    --glass-sheen: linear-gradient(
+      135deg,
+      rgba(255, 255, 255, 7%),
+      transparent 24%,
+      rgba(255, 255, 255, 2%) 72%,
+      transparent
+    );
+    --glass-control-prominent-shadow: inset 0 1px 0 rgba(255, 255, 255, 28%), inset 0 -1px 0 rgba(2, 6, 16, 20%);
+    --glass-control-prominent-focus-shadow:
+      0 0 0 2px rgba(var(--v-theme-primary), 17%), inset 0 1px 0 rgba(255, 255, 255, 34%),
+      inset 0 -1px 0 rgba(2, 6, 16, 18%);
+    --glass-control-prominent-backdrop-filter: blur(24px) saturate(150%);
+    --glass-blur-surface: 28px;
+    --glass-saturate: 150%;
+    --glass-control-icon-color: rgba(242, 245, 250, 78%);
+    --glass-control-placeholder-color: rgba(242, 245, 250, 62%);
+    --glass-control-shortcut-background: rgba(255, 255, 255, 11%);
+    --glass-control-shortcut-border: rgba(255, 255, 255, 16%);
+    --glass-control-shortcut-color: rgba(242, 245, 250, 76%);
+    --glass-button-surface: rgba(255, 255, 255, 10%);
+    --glass-button-surface-hover: rgba(255, 255, 255, 14%);
+    --glass-nav-active-background: linear-gradient(270deg, rgb(var(--v-theme-primary)) 0%, rgb(255, 255, 255) 300%);
+    --glass-nav-active-border: 0 solid transparent;
+    --glass-nav-active-shadow:
+      0 4px 14px -4px rgba(3, 7, 18, 34%), 0 4px 8px -4px rgba(3, 7, 18, 24%), 0 4px 8px -4px rgba(3, 7, 18, 16%);
+    --glass-dashboard-backdrop-filter: blur(var(--glass-blur-surface)) saturate(var(--glass-saturate));
+  }
+
   &[data-theme-radius='none'] {
     --app-theme-surface-radius: 8px;
     --app-field-radius: 8px;
@@ -110,98 +218,54 @@ html[data-theme='glass'] {
   .v-layout,
   .v-main,
   .layout-wrapper,
-  .layout-page-content,
   .layout-content-wrapper,
   .page-content-container {
     background: transparent;
   }
 
+  .layout-page-content {
+    background-color: rgba(255, 255, 255, 2.5%);
+  }
+
+  &[data-glass-appearance='frosted'] .layout-page-content {
+    background-color: transparent;
+  }
+
   .v-application {
     position: relative;
     z-index: 1;
   }
 
-  // 玻璃表面依赖稳定的背景采样层；入场透明度、位移或滤镜会让浏览器在动画结束后才重建材质。
-  :where(
-    .mp-page-route--entering,
-    .mp-page-enter-active,
-    .mp-page-leave-active,
-    .fade-enter-active,
-    .fade-leave-active,
-    .fade-slide-enter-active,
-    .fade-slide-leave-active,
-    .fade-transition-enter-active,
-    .fade-transition-leave-active,
-    .module-item-enter-active
-  ) {
-    animation: none !important;
-    transition: none !important;
-    will-change: auto !important;
+  // 页面路由只使用短距离透明度与位移反馈，避免触发整页滤镜重采样。
+  .mp-page-route--entering {
+    animation: glass-page-route-enter var(--mp-motion-duration-page) var(--mp-motion-ease-standard) both;
+    will-change: opacity, transform;
   }
 
-  :where(
-    .mp-page-enter-from,
-    .mp-page-leave-to,
-    .fade-enter-from,
-    .fade-leave-to,
-    .fade-slide-enter-from,
-    .fade-slide-leave-to,
-    .fade-transition-enter-from,
-    .fade-transition-leave-to,
-    .module-item-enter-from,
-    .module-item-enter-to
-  ) {
+  @keyframes glass-page-route-enter {
+    from {
+      opacity: 0.82;
+      transform: translate3d(0, 2px, 0);
+    }
+
+    to {
+      opacity: 1;
+      transform: none;
+    }
+  }
+
+  .mp-page-enter-active,
+  .mp-page-leave-active {
     filter: none !important;
-    opacity: 1 !important;
-    transform: none !important;
+    transition:
+      opacity var(--mp-motion-duration-page) var(--mp-motion-ease-standard),
+      transform var(--mp-motion-duration-page) var(--mp-motion-ease-standard);
   }
 
-  // 异步卡片批次不再通过父层透明度或位移动画入场，避免整组玻璃表面重新合成。
-  .dashboard-grid,
-  .stream-result-item {
-    animation: none !important;
-    opacity: 1 !important;
-    transform: none !important;
-    transition: none !important;
-  }
-
-  // Overlay 的过渡类挂在玻璃表面的父层上，统一保持最终合成状态可覆盖菜单、选择器和弹窗。
-  .v-overlay__content[class*='-transition-enter-'],
-  .v-overlay__content[class*='-transition-leave-'] {
-    animation: none !important;
+  .mp-page-enter-from {
     filter: none !important;
-    opacity: 1 !important;
-    transform: none !important;
-    transition: none !important;
-    will-change: auto !important;
-  }
-
-  // 提前为实际使用背景滤镜的表面建立合成提示，减少动态插入后的首帧材质延迟。
-  :where(
-    .app-surface:not(.no-blur),
-    .v-card:not(.no-blur, .bg-primary, .bg-success, .bg-info, .bg-warning, .bg-error),
-    .v-sheet:not(.no-blur, .bg-primary, .bg-success, .bg-info, .bg-warning, .bg-error),
-    .v-list,
-    .v-toolbar,
-    .v-footer,
-    .v-expansion-panel,
-    .v-stepper,
-    .v-table,
-    .layout-vertical-nav,
-    .layout-navbar,
-    .footer-nav-card,
-    .theme-customizer-panel-host,
-    .agent-assistant-panel,
-    .v-tooltip > .v-overlay__content,
-    .v-snackbar__wrapper,
-    .transfer-history-mobile-record,
-    .mobile-calendar-filter-card,
-    .mobile-calendar-event-card,
-    .mobile-scheduler-card,
-    .logging-shell,
-    .ai-agent-settings-card
-  ) {
-    will-change: backdrop-filter;
+    opacity: 0.82;
+    transform: translate3d(0, 2px, 0);
   }
 
   :where(
@@ -213,31 +277,46 @@ html[data-theme='glass'] {
     .v-table
   ) {
     border-color: var(--glass-border) !important;
-    -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
+    -webkit-backdrop-filter: var(--glass-surface-backdrop-filter);
+    backdrop-filter: var(--glass-surface-backdrop-filter);
     background-color: var(--glass-surface) !important;
+    background-image: var(--glass-sheen) !important;
     box-shadow: var(--glass-shadow) !important;
   }
 
-  :where(.v-list, .v-toolbar, .v-footer) {
+  :where(.v-list, .v-footer) {
     border-color: var(--glass-border);
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    -webkit-backdrop-filter: var(--glass-surface-backdrop-filter);
+    backdrop-filter: var(--glass-surface-backdrop-filter);
     background-color: var(--glass-surface) !important;
   }
 
+  .v-toolbar {
+    border-color: var(--glass-border);
+    -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
+    backdrop-filter: var(--glass-raised-backdrop-filter);
+    background-color: var(--glass-surface) !important;
+  }
+
+  // Dashboard 顶层工作卡片允许一层业务布局容器，内部图表、列表与海报只使用静态光学表面。
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > .v-card,
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > :first-child > .v-card {
+    -webkit-backdrop-filter: var(--glass-dashboard-backdrop-filter);
+    backdrop-filter: var(--glass-dashboard-backdrop-filter);
+  }
+
   :where(
-    .layout-vertical-nav,
     .layout-navbar,
     .footer-nav-card,
     .theme-customizer-panel-host,
     .agent-assistant-panel,
     .Vue-Toastification__toast
   ) {
-    border-color: var(--glass-border) !important;
-    -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
+    border-color: var(--glass-border-raised) !important;
+    -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
+    backdrop-filter: var(--glass-raised-backdrop-filter);
     background-color: var(--glass-surface-raised) !important;
+    background-image: var(--glass-sheen) !important;
     box-shadow: var(--glass-shadow-raised) !important;
   }
 
@@ -247,7 +326,52 @@ html[data-theme='glass'] {
   }
 
   .layout-vertical-nav {
-    border-inline-end: 1px solid var(--glass-border);
+    isolation: isolate;
+    border-inline-end: 0;
+    -webkit-backdrop-filter: none;
+    backdrop-filter: none;
+    background: transparent !important;
+    box-shadow: none !important;
+
+    // 导航材质与可变菜单内容分层，路由激活态切换不应重栅格化整块全高背板。
+    &::before {
+      position: absolute;
+      z-index: -1;
+      border-inline-end: 1px solid var(--glass-border-raised);
+      -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
+      backdrop-filter: var(--glass-raised-backdrop-filter);
+      background-color: var(--glass-surface-raised);
+      background-image: var(--glass-sheen);
+      box-shadow: var(--glass-shadow-raised);
+      content: '';
+      inset: 0;
+      pointer-events: none;
+    }
+  }
+
+  // 滚动条与导航材质边界保持间距，避免窄轨道参与全高背板的合成。
+  .layout-vertical-nav .ps__rail-y {
+    inset-inline-end: 0.5rem !important;
+    transition: opacity 120ms linear;
+  }
+
+  .layout-vertical-nav .ps__thumb-y,
+  .layout-vertical-nav .ps__rail-y:focus > .ps__thumb-y,
+  .layout-vertical-nav .ps__rail-y:hover > .ps__thumb-y,
+  .layout-vertical-nav .ps__rail-y.ps--clicking .ps__thumb-y {
+    background-color: rgba(255, 255, 255, 28%) !important;
+    inline-size: 2px !important;
+    inset-inline-end: 0.1875rem;
+  }
+
+  .layout-vertical-nav .nav-items.ps--scrolling-y > .ps__rail-y {
+    opacity: 0.42;
+  }
+
+  .layout-vertical-nav .nav-link > .router-link-exact-active {
+    border: var(--glass-nav-active-border);
+    background: var(--glass-nav-active-background) !important;
+    box-shadow: var(--glass-nav-active-shadow) !important;
   }
 
   .layout-wrapper.window-scrolled.layout-navbar-fixed .layout-navbar,
@@ -255,7 +379,8 @@ html[data-theme='glass'] {
     border-color: var(--glass-border) !important;
     -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate)) !important;
     backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate)) !important;
-    background: var(--glass-surface-raised) !important;
+    background-color: var(--glass-surface-raised) !important;
+    background-image: var(--glass-sheen) !important;
     box-shadow: var(--glass-navbar-shadow) !important;
   }
 
@@ -269,21 +394,32 @@ html[data-theme='glass'] {
   }
 
   :where(.search-desktop-activator, .search-header) .search-input-wrapper {
-    border-color: var(--glass-border) !important;
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    background: rgba(255, 255, 255, 9%) !important;
-    box-shadow:
-      inset 0 1px 0 rgba(255, 255, 255, 22%),
-      inset 0 -1px 0 rgba(2, 6, 16, 22%);
+    border: 1px solid var(--glass-control-prominent-border) !important;
+    -webkit-backdrop-filter: var(--glass-control-prominent-backdrop-filter);
+    backdrop-filter: var(--glass-control-prominent-backdrop-filter);
+    background-color: var(--glass-control-prominent) !important;
+    background-image: var(--glass-sheen) !important;
+    box-shadow: var(--glass-control-prominent-shadow);
   }
 
   :where(.search-desktop-activator, .search-header) .search-input-wrapper:focus-within {
     border-color: rgba(var(--v-theme-primary), 70%) !important;
-    background: rgba(255, 255, 255, 12%) !important;
-    box-shadow:
-      0 0 0 3px rgba(var(--v-theme-primary), 15%),
-      inset 0 1px 0 rgba(255, 255, 255, 28%);
+    background: var(--glass-control-prominent-focus) !important;
+    box-shadow: var(--glass-control-prominent-focus-shadow);
+  }
+
+  :where(.search-desktop-activator, .search-header) .search-input-icon {
+    color: var(--glass-control-icon-color) !important;
+  }
+
+  :where(.search-desktop-activator, .search-header) .search-native-input::placeholder {
+    color: var(--glass-control-placeholder-color);
+  }
+
+  :where(.search-desktop-activator, .search-header) .search-shortcut-badge {
+    border: 1px solid var(--glass-control-shortcut-border);
+    background: var(--glass-control-shortcut-background);
+    color: var(--glass-control-shortcut-color);
   }
 
   .theme-customizer-panel,
@@ -329,16 +465,17 @@ html[data-theme='glass'] {
   .compact-fab .v-btn,
   .global-action-buttons .v-btn {
     border: 1px solid var(--glass-border) !important;
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
+    backdrop-filter: var(--glass-raised-backdrop-filter);
     background-color: var(--glass-surface-raised) !important;
-    box-shadow: var(--glass-shadow) !important;
+    background-image: var(--glass-sheen) !important;
+    box-shadow: var(--glass-control-shadow) !important;
   }
 
   .v-overlay__scrim {
     -webkit-backdrop-filter: blur(12px) saturate(120%);
     backdrop-filter: blur(12px) saturate(120%);
-    background: rgba(3, 7, 18, 62%);
+    background: rgba(3, 7, 18, 48%);
   }
 
   .v-dialog--fullscreen {
@@ -349,9 +486,10 @@ html[data-theme='glass'] {
     border-radius: var(--app-overlay-radius);
 
     > :where(.v-card, .v-sheet, .v-list) {
-      -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
-      backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
+      -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
+      backdrop-filter: var(--glass-raised-backdrop-filter);
       background-color: var(--glass-surface-raised) !important;
+      background-image: var(--glass-sheen) !important;
       box-shadow: var(--glass-shadow-raised) !important;
     }
   }
@@ -366,28 +504,27 @@ html[data-theme='glass'] {
   }
 
   .v-field {
-    --v-field-border-opacity: 0.18;
+    --v-field-border-opacity: 0.14;
     --v-field-border-width: 1px;
 
     border-radius: var(--app-field-radius);
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    background-color: var(--glass-surface-soft) !important;
-    box-shadow:
-      inset 0 1px 0 rgba(255, 255, 255, 15%),
-      inset 0 -1px 0 rgba(2, 6, 16, 30%);
+    -webkit-backdrop-filter: var(--glass-control-backdrop-filter);
+    backdrop-filter: var(--glass-control-backdrop-filter);
+    background-color: var(--glass-control) !important;
+    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 8%);
     transition:
       background-color var(--glass-motion),
       box-shadow var(--glass-motion);
   }
 
   .v-field--focused {
-    --v-field-border-opacity: 0.36;
+    --v-field-border-opacity: 0.32;
 
-    background-color: rgba(255, 255, 255, 10%) !important;
+    background-color: color-mix(in srgb, var(--glass-control) 84%, rgba(var(--v-theme-primary), 32%)) !important;
+    background-image: none !important;
     box-shadow:
-      0 0 0 3px rgba(var(--v-theme-primary), 15%),
-      inset 0 1px 0 rgba(255, 255, 255, 25%);
+      0 0 0 3px rgba(var(--v-theme-primary), 14%),
+      inset 0 1px 0 rgba(255, 255, 255, 10%);
   }
 
   // Outlined 描边自身会为浮动标签留出缺口，移除贯穿整个顶部的 field 阴影线。
@@ -421,19 +558,16 @@ html[data-theme='glass'] {
     transition:
       background-color var(--glass-motion),
       border-color var(--glass-motion),
-      box-shadow var(--glass-motion),
-      transform var(--glass-motion);
+      box-shadow var(--glass-motion);
   }
 
   .v-btn:not(.v-btn--variant-text, .v-btn--variant-plain) {
-    border: 1px solid rgba(255, 255, 255, 20%);
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    background-color: rgba(255, 255, 255, 10%) !important;
-    box-shadow:
-      0 2px 8px rgba(3, 7, 18, 24%),
-      inset 0 1px 0 rgba(255, 255, 255, 20%),
-      inset 0 -1px 0 rgba(2, 6, 16, 18%) !important;
+    border: 1px solid var(--glass-border);
+    -webkit-backdrop-filter: var(--glass-control-backdrop-filter);
+    backdrop-filter: var(--glass-control-backdrop-filter);
+    background-color: var(--glass-button-surface) !important;
+    background-image: none !important;
+    box-shadow: var(--glass-control-shadow) !important;
   }
 
   .v-btn.bg-primary {
@@ -465,7 +599,7 @@ html[data-theme='glass'] {
     outline: 0;
     box-shadow:
       0 0 0 3px rgba(var(--v-theme-primary), 18%),
-      var(--glass-shadow) !important;
+      var(--glass-control-shadow) !important;
   }
 
   .v-chip {
@@ -495,8 +629,8 @@ html[data-theme='glass'] {
     --app-card-stripe-opacity: 0.12;
     --app-card-surface-opacity: 0.08;
 
-    -webkit-backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur-raised)) saturate(var(--glass-saturate));
+    -webkit-backdrop-filter: none;
+    backdrop-filter: none;
   }
 
   // 移动端文件整理和日历使用自定义容器，需要显式接入玻璃表面材质。
@@ -504,15 +638,15 @@ html[data-theme='glass'] {
     --transfer-history-mobile-search-bg: var(--glass-surface-soft);
     --transfer-history-mobile-muted-bg: var(--glass-surface-soft);
     --transfer-history-mobile-border: var(--glass-border);
-    --transfer-history-mobile-surface-blur: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    --transfer-history-mobile-surface-blur: none;
   }
 
   .transfer-history-mobile-record,
   .mobile-calendar-filter-card,
   .mobile-calendar-event-card {
     border: 1px solid var(--glass-border);
-    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
-    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    -webkit-backdrop-filter: none;
+    backdrop-filter: none;
     background: var(--glass-surface);
   }
 
@@ -528,7 +662,7 @@ html[data-theme='glass'] {
   }
 
   .mobile-scheduler-view {
-    --mobile-scheduler-card-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    --mobile-scheduler-card-backdrop-filter: none;
     --mobile-scheduler-card-background: var(--glass-surface);
     --mobile-scheduler-card-border: 1px solid var(--glass-border);
     --mobile-scheduler-card-shadow: var(--glass-shadow);
@@ -537,7 +671,7 @@ html[data-theme='glass'] {
   .mobile-subscribe-calendar {
     --mobile-calendar-control-bg: var(--glass-surface-soft);
     --mobile-calendar-placeholder-bg: var(--glass-surface-soft);
-    --mobile-calendar-surface-blur: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    --mobile-calendar-surface-blur: none;
   }
 
   // 用户权限编辑器由普通容器构成，通过主题变量接入玻璃表面材质。
@@ -548,7 +682,7 @@ html[data-theme='glass'] {
     --permission-editor-hover-bg: rgba(255, 255, 255, 8%);
     --permission-editor-active-bg: rgba(var(--v-theme-primary), 16%);
     --permission-editor-selected-bg: rgba(var(--v-theme-primary), 12%);
-    --permission-editor-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
+    --permission-editor-backdrop-filter: none;
     --permission-editor-shadow: inset 0 1px 0 rgba(255, 255, 255, 8%);
   }
 
@@ -592,10 +726,8 @@ html[data-theme='glass'] {
   @media (hover: hover) and (pointer: fine) {
     .v-btn:not(.v-btn--variant-text, .v-btn--variant-plain):hover {
       border-color: var(--glass-border-hover);
-      background-color: rgba(255, 255, 255, 15%) !important;
-      box-shadow:
-        0 5px 16px rgba(3, 7, 18, 28%),
-        inset 0 1px 0 rgba(255, 255, 255, 26%) !important;
+      background-color: var(--glass-button-surface-hover) !important;
+      box-shadow: var(--glass-control-shadow-hover) !important;
     }
 
     .v-btn.bg-primary:hover {
@@ -629,8 +761,8 @@ html[data-theme='glass'] {
     }
   }
 
-  .v-btn:active {
-    transform: scale(0.97);
+  .v-btn:not(.v-btn--variant-text, .v-btn--variant-plain):active {
+    box-shadow: var(--glass-control-shadow-active) !important;
   }
 
   @media (width <= 960px) {
@@ -665,6 +797,23 @@ html[data-theme='glass'] {
     }
   }
 
+  @media (prefers-reduced-transparency: reduce) {
+    :where(
+      .app-surface,
+      .v-card,
+      .v-sheet,
+      .v-list,
+      .v-toolbar,
+      .layout-vertical-nav,
+      .layout-navbar,
+      .v-overlay__content
+    ) {
+      -webkit-backdrop-filter: none !important;
+      backdrop-filter: none !important;
+      background-color: rgba(11, 19, 34, 94%) !important;
+    }
+  }
+
   @media (prefers-reduced-motion: reduce) {
     .v-btn,
     .v-card,
@@ -674,3 +823,212 @@ html[data-theme='glass'] {
     }
   }
 }
+
+// 光学档位只在 renderer ready 后接管背景采样，加载与失败状态继续使用标准 CSS 材质。
+.glass-optical-layer {
+  position: fixed;
+  z-index: 0;
+  block-size: 100%;
+  inline-size: 100%;
+  inset: 0;
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 180ms ease-out;
+}
+
+// 壁纸交叉淡入期间停用折射输出，避免新纹理采样仍在混合的背景。
+.glass-optical-layer--background-transition {
+  opacity: 0 !important;
+}
+
+// 登录卡片的壁纸副本与外层背景共享切换时序，避免卡片内部提前显示下一张图片。
+html[data-theme='glass'] .app-wrapper--background-transition .login-card__wallpaper-refraction {
+  opacity: 0 !important;
+}
+
+html:is([data-glass-quality='balanced'], [data-glass-quality='high'])[data-glass-renderer-state='ready']
+  .glass-optical-layer {
+  opacity: 1;
+}
+
+html:is([data-glass-quality='balanced'], [data-glass-quality='high'])[data-glass-renderer-state='ready']
+  body[data-theme='glass'] {
+  .layout-vertical-nav::before,
+  .layout-navbar {
+    -webkit-backdrop-filter: blur(10px) saturate(140%) !important;
+    backdrop-filter: blur(10px) saturate(140%) !important;
+  }
+
+  .v-overlay__content > :where(.v-card, .v-sheet, .v-list) {
+    -webkit-backdrop-filter: blur(12px) saturate(140%) !important;
+    backdrop-filter: blur(12px) saturate(140%) !important;
+  }
+
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > .v-card,
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > :first-child > .v-card {
+    -webkit-backdrop-filter: none !important;
+    backdrop-filter: none !important;
+  }
+}
+
+// 磨砂材质的散射由 renderer 与有限的局部扩散共同构成。
+html[data-glass-appearance='frosted']:is(
+    [data-glass-quality='balanced'],
+    [data-glass-quality='high']
+  )[data-glass-renderer-state='ready']
+  body[data-theme='glass'] {
+  .layout-vertical-nav::before,
+  .layout-navbar,
+  .v-overlay__content > :where(.v-card, .v-sheet, .v-list) {
+    -webkit-backdrop-filter: blur(18px) saturate(145%) !important;
+    backdrop-filter: blur(18px) saturate(145%) !important;
+  }
+
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > .v-card,
+  .dashboard-grid-item-content > .dashboard-grid-auto-size > .dashboard-grid-content-measure > :first-child > .v-card {
+    -webkit-backdrop-filter: blur(24px) saturate(150%) !important;
+    backdrop-filter: blur(24px) saturate(150%) !important;
+  }
+}
+
+// 登录页只有一个高价值表面，三档质量共用局部实时材质，避免整屏 renderer 重复采样跨域壁纸。
+html[data-theme='glass'] body[data-theme='glass'] {
+  .login-card {
+    box-shadow:
+      inset 0 0 0 1px rgba(255, 255, 255, 0.16),
+      inset 0 1px 0 rgba(255, 255, 255, 0.2),
+      0 24px 64px rgba(1, 6, 15, 0.22) !important;
+  }
+
+  .login-card__glass {
+    -webkit-backdrop-filter: blur(14px) saturate(162%) contrast(108%) !important;
+    backdrop-filter: blur(14px) saturate(162%) contrast(108%) !important;
+    background:
+      radial-gradient(
+        220px 190px at var(--login-card-light-x) var(--login-card-light-y),
+        rgba(255, 255, 255, 0.13),
+        rgba(var(--v-theme-primary), 0.045) 42%,
+        transparent 76%
+      ),
+      linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent 36%), rgba(var(--v-theme-surface), 0.28) !important;
+  }
+
+  .login-card__wallpaper-refraction {
+    display: block;
+    background-attachment: fixed;
+    background-image: var(--login-wallpaper-image);
+    background-position: calc(50% + var(--login-refraction-shift-x)) calc(50% + var(--login-refraction-shift-y));
+    background-repeat: no-repeat;
+    background-size: cover;
+    filter: url('#login-liquid-refraction-clear') saturate(1.22) contrast(1.06) brightness(1.04);
+    opacity: 0.48;
+    transform: scale(1.025);
+    transition:
+      background-position 90ms linear,
+      opacity 180ms ease-out;
+  }
+
+  .login-card__glass-caustic {
+    inset-block-start: calc(var(--login-card-light-y) - 88px);
+    inset-inline-start: calc(var(--login-card-light-x) - 112px);
+    mix-blend-mode: screen;
+    opacity: calc(var(--optical-glass-caustic-opacity) + 0.12);
+    transform: scale(calc(var(--optical-glass-caustic-scale) + 0.08));
+    transition:
+      inset-block-start 90ms linear,
+      inset-inline-start 90ms linear,
+      opacity 160ms ease-out,
+      transform 180ms ease-out;
+  }
+
+  .native-login-field {
+    border-color: rgba(255, 255, 255, 0.15);
+    background: rgba(7, 16, 28, 0.2);
+    -webkit-backdrop-filter: blur(10px) saturate(132%);
+    backdrop-filter: blur(10px) saturate(132%);
+  }
+}
+
+html[data-theme='glass'][data-glass-appearance='tinted'] body[data-theme='glass'] {
+  .login-card__glass {
+    background:
+      radial-gradient(
+        220px 190px at var(--login-card-light-x) var(--login-card-light-y),
+        rgba(255, 255, 255, 0.13),
+        rgba(var(--v-theme-primary), 0.1) 44%,
+        transparent 76%
+      ),
+      linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent 36%),
+      linear-gradient(rgba(var(--v-theme-primary), 0.1), rgba(var(--v-theme-primary), 0.04)),
+      rgba(var(--v-theme-surface), 0.28) !important;
+  }
+
+  .login-card__wallpaper-refraction {
+    filter: url('#login-liquid-refraction-clear') saturate(1.22) contrast(1.06) brightness(1.04);
+    opacity: 0.48;
+  }
+
+  .native-login-field {
+    border-color: rgba(255, 255, 255, 0.15);
+    background:
+      linear-gradient(rgba(var(--v-theme-primary), 0.07), rgba(var(--v-theme-primary), 0.07)), rgba(7, 16, 28, 0.2);
+  }
+}
+
+html[data-theme='glass'][data-glass-appearance='frosted'] body[data-theme='glass'] {
+  .login-card {
+    box-shadow: var(--glass-shadow-raised) !important;
+  }
+
+  .login-card__glass {
+    -webkit-backdrop-filter: var(--glass-raised-backdrop-filter) !important;
+    backdrop-filter: var(--glass-raised-backdrop-filter) !important;
+    background-color: var(--glass-surface-raised) !important;
+    background-image: var(--glass-sheen) !important;
+  }
+
+  .login-card__glass::after {
+    position: absolute;
+    z-index: 1;
+    background-color: rgba(255, 255, 255, 0.08);
+    background-image: var(--glass-sheen);
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.22),
+      inset 0 -1px 0 rgba(2, 6, 16, 0.16);
+    content: '';
+    inset: 0;
+  }
+
+  // 登录页位于独立合成边界，壁纸副本用于恢复导航表面的背景采样语义。
+  .login-card__wallpaper-refraction {
+    display: block;
+    background-image: linear-gradient(rgba(6, 10, 19, 0.3), rgba(6, 10, 19, 0.58)), var(--login-wallpaper-image);
+    background-attachment: fixed, fixed;
+    background-position:
+      center,
+      calc(50% + var(--login-refraction-shift-x)) calc(50% + var(--login-refraction-shift-y));
+    background-repeat: no-repeat;
+    background-size: cover;
+    filter: blur(52px) brightness(0.76) saturate(0.72);
+    opacity: 0.94;
+    transform: scale(1.24);
+  }
+
+  .login-card__glass-caustic {
+    opacity: calc(var(--optical-glass-caustic-opacity) + 0.08);
+  }
+
+  .native-login-field {
+    border-color: var(--glass-control-prominent-border);
+    background: var(--glass-control-prominent);
+    -webkit-backdrop-filter: var(--glass-control-prominent-backdrop-filter);
+    backdrop-filter: var(--glass-control-prominent-backdrop-filter);
+    box-shadow: var(--glass-control-prominent-shadow);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .glass-optical-layer {
+    transition: none;
+  }
+}
diff --git a/src/utils/__tests__/glassOptics.spec.ts b/src/utils/__tests__/glassOptics.spec.ts
new file mode 100644
index 00000000..25e1ae55
--- /dev/null
+++ b/src/utils/__tests__/glassOptics.spec.ts
@@ -0,0 +1,107 @@
+import {
+  canUseGlassWallpaperTexture,
+  getGlassCoverScale,
+  getGlassOpticalBufferSize,
+  getGlassOpticalRenderProfile,
+  normalizeGlassOpticalRect,
+  selectGlassOpticalRects,
+  type GlassOpticalRect,
+} from '@/utils/glassOptics'
+import { describe, expect, it } from 'vitest'
+
+describe('glass optics geometry', () => {
+  it('caps the renderer buffer independently from device pixel ratio', () => {
+    expect(getGlassOpticalBufferSize(3456, 2234, false)).toEqual({ height: 621, width: 960 })
+    expect(getGlassOpticalBufferSize(390, 844, true)).toEqual({ height: 720, width: 333 })
+    expect(getGlassOpticalBufferSize(3456, 2234, false, 'high')).toEqual({ height: 931, width: 1440 })
+    expect(getGlassOpticalBufferSize(390, 844, true, 'high')).toEqual({ height: 844, width: 390 })
+  })
+
+  it('matches cover cropping on wide and tall images', () => {
+    expect(getGlassCoverScale(1600, 900, 2400, 1600)).toEqual({ x: 1, y: 0.84375 })
+    expect(getGlassCoverScale(900, 1600, 2400, 1600)).toEqual({ x: 0.375, y: 1 })
+  })
+
+  it('keeps high quality optics while reducing the media-dense recommendation budget', () => {
+    expect(getGlassOpticalRenderProfile('high', '/dashboard')).toEqual({
+      bufferQuality: 'high',
+      textureLimit: 3072,
+      textureSource: 'wallpaper',
+    })
+    expect(getGlassOpticalRenderProfile('high', '/recommend?source=tmdb')).toEqual({
+      bufferQuality: 'balanced',
+      textureLimit: 2048,
+      textureSource: 'wallpaper',
+    })
+    expect(getGlassOpticalRenderProfile('balanced', '/dashboard')).toEqual({
+      bufferQuality: 'balanced',
+      textureLimit: 2048,
+      textureSource: 'wallpaper',
+    })
+    expect(getGlassOpticalRenderProfile('high', '/login')).toEqual({
+      bufferQuality: 'high',
+      textureLimit: 3072,
+      textureSource: 'auto',
+    })
+  })
+
+  it('only uploads browser-readable login wallpapers to WebGL', () => {
+    const documentUrl = 'https://moviepilot.example/login'
+
+    expect(canUseGlassWallpaperTexture('/api/v1/login/wallpaper/0', documentUrl)).toBe(true)
+    expect(canUseGlassWallpaperTexture('https://moviepilot.example/assets/login.jpg', documentUrl)).toBe(true)
+    expect(canUseGlassWallpaperTexture('blob:https://moviepilot.example/texture', documentUrl)).toBe(true)
+    expect(canUseGlassWallpaperTexture('data:image/png;base64,AA==', documentUrl)).toBe(true)
+    expect(canUseGlassWallpaperTexture('https://image.tmdb.org/t/p/original/poster.jpg', documentUrl)).toBe(false)
+    expect(canUseGlassWallpaperTexture('', documentUrl)).toBe(false)
+  })
+
+  it('keeps high-value outer surfaces and removes nested repeats', () => {
+    const candidates: GlassOpticalRect[] = [
+      { height: 900, radius: 0, rank: 2, width: 260, x: 0, y: 0 },
+      { height: 300, radius: 16, rank: 4, width: 500, x: 300, y: 100 },
+      { height: 100, radius: 12, rank: 5, width: 200, x: 320, y: 120 },
+      { height: 120, radius: 12, rank: 1, width: 400, x: 500, y: 700 },
+    ]
+
+    const selected = selectGlassOpticalRects(candidates, 1440, 900, false)
+
+    expect(selected).toHaveLength(3)
+    expect(selected.map(rect => rect.rank)).toEqual([1, 2, 4])
+  })
+
+  it('keeps original geometry while using the viewport intersection for visibility', () => {
+    const selected = selectGlassOpticalRects(
+      [{ height: 160, radius: 20, rank: 1, width: 180, x: -30, y: -40 }],
+      320,
+      240,
+      false,
+    )
+
+    expect(selected).toEqual([{ height: 160, radius: 20, rank: 1, width: 180, x: -30, y: -40 }])
+  })
+
+  it('budgets partially visible surfaces by their visible pixels', () => {
+    const selected = selectGlassOpticalRects(
+      [
+        { height: 1000, radius: 20, rank: 1, width: 1000, x: -950, y: -900 },
+        { height: 120, radius: 16, rank: 2, width: 200, x: 80, y: 80 },
+      ],
+      320,
+      240,
+      false,
+    )
+
+    expect(selected.map(rect => rect.rank)).toEqual([1, 2])
+  })
+
+  it('converts DOM top-origin rectangles while preserving pixel radius', () => {
+    expect(
+      normalizeGlassOpticalRect({ height: 100, radius: 20, rank: 1, width: 200, x: 100, y: 50 }, 1000, 500),
+    ).toEqual({ radius: 20, rect: [0.1, 0.7, 0.2, 0.2] })
+
+    expect(
+      normalizeGlassOpticalRect({ height: 100, radius: 80, rank: 1, width: 200, x: -20, y: 50 }, 1000, 500),
+    ).toEqual({ radius: 50, rect: [-0.02, 0.7, 0.2, 0.2] })
+  })
+})
diff --git a/src/utils/glassOptics.ts b/src/utils/glassOptics.ts
new file mode 100644
index 00000000..531f00fe
--- /dev/null
+++ b/src/utils/glassOptics.ts
@@ -0,0 +1,166 @@
+export const GLASS_OPTICAL_MAX_SURFACES_DESKTOP = 8
+export const GLASS_OPTICAL_MAX_SURFACES_MOBILE = 5
+
+export type GlassOpticalQuality = 'balanced' | 'high'
+
+export interface GlassOpticalRect {
+  /** 元素的实际高度，元素可部分位于视口外。 */
+  height: number
+  /** 元素圆角的 CSS 像素值。 */
+  radius: number
+  /** 表面的场景优先级，数值越小越优先。 */
+  rank: number
+  /** 元素的实际宽度，元素可部分位于视口外。 */
+  width: number
+  /** 元素左边缘相对视口的位置。 */
+  x: number
+  /** 元素上边缘相对视口的位置。 */
+  y: number
+}
+
+export interface GlassOpticalBufferSize {
+  height: number
+  width: number
+}
+
+export interface GlassOpticalRenderProfile {
+  /** 实际内部缓冲档位；媒体密集场景可保留高质量光学但降低合成分辨率。 */
+  bufferQuality: GlassOpticalQuality
+  /** 活动壁纸进入 GPU 前的最长边限制。 */
+  textureLimit: number
+  /** 登录页优先使用可读纹理，跨域外链自动退回程序化高光。 */
+  textureSource: 'auto' | 'procedural' | 'wallpaper'
+}
+
+/** 按质量与场景分配合成预算，避免推荐页海报解码与高分辨率光学层争抢资源。 */
+export function getGlassOpticalRenderProfile(
+  quality: GlassOpticalQuality,
+  routeKey: string,
+): GlassOpticalRenderProfile {
+  const mediaDenseRoute = routeKey.startsWith('/recommend')
+
+  return {
+    bufferQuality: quality === 'high' && !mediaDenseRoute ? 'high' : 'balanced',
+    textureLimit: quality === 'high' && !mediaDenseRoute ? 3072 : 2048,
+    textureSource: routeKey.startsWith('/login') ? 'auto' : 'wallpaper',
+  }
+}
+
+/** 只将同源及本地对象交给 WebGL，避免跨域纹理失败污染登录页控制台。 */
+export function canUseGlassWallpaperTexture(url: string, documentUrl: string): boolean {
+  if (!url || !documentUrl) return false
+
+  try {
+    const source = new URL(url, documentUrl)
+    if (source.protocol === 'blob:' || source.protocol === 'data:') return true
+
+    return source.origin === new URL(documentUrl).origin
+  } catch {
+    return false
+  }
+}
+
+/** 按固定像素预算计算内部缓冲尺寸，避免高 DPI 屏幕线性放大 GPU 成本。 */
+export function getGlassOpticalBufferSize(
+  viewportWidth: number,
+  viewportHeight: number,
+  mobile: boolean,
+  quality: GlassOpticalQuality = 'balanced',
+): GlassOpticalBufferSize {
+  const safeWidth = Math.max(1, viewportWidth)
+  const safeHeight = Math.max(1, viewportHeight)
+  const highQuality = quality === 'high'
+  const maxWidth = mobile ? (highQuality ? 960 : 720) : highQuality ? 1440 : 960
+  const maxHeight = highQuality ? 960 : 720
+  const scale = Math.min(1, maxWidth / safeWidth, maxHeight / safeHeight)
+
+  return {
+    height: Math.max(1, Math.round(safeHeight * scale)),
+    width: Math.max(1, Math.round(safeWidth * scale)),
+  }
+}
+
+/** 计算与 CSS `background-size: cover` 一致的纹理缩放参数。 */
+export function getGlassCoverScale(
+  viewportWidth: number,
+  viewportHeight: number,
+  imageWidth: number,
+  imageHeight: number,
+) {
+  const viewportAspect = Math.max(1, viewportWidth) / Math.max(1, viewportHeight)
+  const imageAspect = Math.max(1, imageWidth) / Math.max(1, imageHeight)
+
+  return imageAspect > viewportAspect
+    ? { x: viewportAspect / imageAspect, y: 1 }
+    : { x: 1, y: imageAspect / viewportAspect }
+}
+
+/** 用可见交集筛选和计费，但保留原始边界给 shader，避免在视口裁剪边生成伪圆角。 */
+export function selectGlassOpticalRects(
+  candidates: GlassOpticalRect[],
+  viewportWidth: number,
+  viewportHeight: number,
+  mobile: boolean,
+): GlassOpticalRect[] {
+  const viewportArea = Math.max(1, viewportWidth * viewportHeight)
+  const maxCount = mobile ? GLASS_OPTICAL_MAX_SURFACES_MOBILE : GLASS_OPTICAL_MAX_SURFACES_DESKTOP
+  const maxArea = viewportArea * (mobile ? 0.68 : 0.82)
+  const visible = candidates
+    .map(rect => {
+      const left = Math.max(0, rect.x)
+      const top = Math.max(0, rect.y)
+      const right = Math.min(viewportWidth, rect.x + rect.width)
+      const bottom = Math.min(viewportHeight, rect.y + rect.height)
+      const visibleHeight = Math.max(0, bottom - top)
+      const visibleWidth = Math.max(0, right - left)
+
+      return {
+        rect,
+        visibleArea: visibleWidth * visibleHeight,
+        visibleHeight,
+        visibleWidth,
+      }
+    })
+    .filter(candidate => candidate.visibleWidth >= 24 && candidate.visibleHeight >= 24)
+    .sort((left, right) => left.rect.rank - right.rect.rank || left.visibleArea - right.visibleArea)
+
+  const selected: typeof visible = []
+  let selectedArea = 0
+
+  for (const candidate of visible) {
+    if (selected.length >= maxCount) break
+
+    const { rect } = candidate
+    const nested = selected.some(
+      parent =>
+        rect.x >= parent.rect.x &&
+        rect.y >= parent.rect.y &&
+        rect.x + rect.width <= parent.rect.x + parent.rect.width &&
+        rect.y + rect.height <= parent.rect.y + parent.rect.height,
+    )
+    if (nested) continue
+
+    if (selected.length > 0 && selectedArea + candidate.visibleArea > maxArea) continue
+
+    selected.push(candidate)
+    selectedArea += candidate.visibleArea
+  }
+
+  return selected.map(candidate => candidate.rect)
+}
+
+/** 将视口矩形转换为 WebGL 底部原点的归一化参数。 */
+export function normalizeGlassOpticalRect(rect: GlassOpticalRect, viewportWidth: number, viewportHeight: number) {
+  const safeWidth = Math.max(1, viewportWidth)
+  const safeHeight = Math.max(1, viewportHeight)
+
+  return {
+    radius: Math.min(Math.max(0, rect.radius), Math.max(0, Math.min(rect.width, rect.height) / 2)),
+    rect: [
+      rect.x / safeWidth,
+      1 - (rect.y + rect.height) / safeHeight,
+      rect.width / safeWidth,
+      rect.height / safeHeight,
+    ] as const,
+  }
+}