diff --git a/src/components/agent/AgentAssistantEntry.vue b/src/components/agent/AgentAssistantEntry.vue
index 9d0a2114..8a1b76b7 100644
--- a/src/components/agent/AgentAssistantEntry.vue
+++ b/src/components/agent/AgentAssistantEntry.vue
@@ -11,6 +11,7 @@ import { useI18n } from 'vue-i18n'
 import AgentPetStage from './pet/AgentPetStage.vue'
 import type { AgentPetActionName, AgentPetIntent } from './pet/types'
 import { useAgentPetMachine } from './pet/useAgentPetMachine'
+import { AGENT_ASSISTANT_LAYER_Z_INDEX } from '@/constants/agentAssistant'
 
 interface AgentAssistantEntryBubble {
   id: string
@@ -163,6 +164,7 @@ const fabPositionStyle = computed(() => {
     ...fabPointerStyle.value,
     '--agent-assistant-fab-x': `${position.x}px`,
     '--agent-assistant-fab-y': `${position.y}px`,
+    zIndex: AGENT_ASSISTANT_LAYER_Z_INDEX.entry,
   }
 })
 const fabBubblePlacement = ref<FabBubblePlacement>('top')
@@ -1570,9 +1572,6 @@ defineExpose({
 .agent-assistant-fab {
   position: fixed;
 
-  /* 保持机器人和提示气泡高于 Vuetify 弹窗（2400）及全局 Toast（2500）。 */
-  z-index: 2600;
-
   --agent-assistant-robot-outline: color-mix(in srgb, rgb(var(--v-theme-primary)) 72%, #090510 28%);
   --agent-assistant-robot-outline-soft: color-mix(in srgb, rgb(var(--v-theme-primary)) 84%, #090510 16%);
   --agent-assistant-robot-shell-start: color-mix(in srgb, rgb(var(--v-theme-primary)) 38%, white 62%);
diff --git a/src/components/agent/AgentAssistantPanel.vue b/src/components/agent/AgentAssistantPanel.vue
index b78daae8..2644776d 100644
--- a/src/components/agent/AgentAssistantPanel.vue
+++ b/src/components/agent/AgentAssistantPanel.vue
@@ -5,6 +5,7 @@ import { useDisplay } from 'vuetify'
 import { useI18n } from 'vue-i18n'
 import { useAuthStore, useUserStore } from '@/stores'
 import { getCurrentLocale } from '@/plugins/i18n'
+import { AGENT_ASSISTANT_LAYER_Z_INDEX } from '@/constants/agentAssistant'
 
 type AgentMessageRole = 'user' | 'assistant'
 type AgentMessageStatus = 'idle' | 'streaming' | 'done' | 'error'
@@ -296,6 +297,7 @@ const isOpen = computed({
 })
 const drawerStyle = computed(() => ({
   '--agent-assistant-panel-width': drawerWidth.value,
+  zIndex: AGENT_ASSISTANT_LAYER_Z_INDEX.panel,
 }))
 
 // 创建前端展示用的临时 ID。
@@ -2130,11 +2132,11 @@ onScopeDispose(() => {
           <VMenu
             v-model="historyMenuOpen"
             :close-on-content-click="false"
-            content-class="agent-assistant-history-overlay"
             location="bottom end"
             offset="8"
             max-width="360"
-            :z-index="2603"
+            :style="{ zIndex: AGENT_ASSISTANT_LAYER_Z_INDEX.overlay }"
+            :z-index="AGENT_ASSISTANT_LAYER_Z_INDEX.overlay"
           >
             <template #activator="{ props }">
               <IconBtn v-bind="props" :title="t('agentAssistant.history')" :aria-label="t('agentAssistant.history')">
@@ -2488,21 +2490,12 @@ onScopeDispose(() => {
   </aside>
 </template>
 
-<style lang="scss">
-.agent-assistant-history-overlay {
-  z-index: 2603 !important;
-}
-</style>
-
 <style lang="scss" scoped>
 /* stylelint-disable selector-pseudo-class-no-unknown */
 /* stylelint-disable no-descending-specificity */
 
 .agent-assistant-panel {
   position: fixed;
-
-  /* Agent 会话层保持高于入口（2600）和业务弹窗，同时低于自身弹出菜单。 */
-  z-index: 2601;
   overflow: hidden;
   background: rgb(var(--v-theme-surface));
 
diff --git a/src/components/agent/AgentAssistantWidget.vue b/src/components/agent/AgentAssistantWidget.vue
index ad70032c..88dd9b6c 100644
--- a/src/components/agent/AgentAssistantWidget.vue
+++ b/src/components/agent/AgentAssistantWidget.vue
@@ -2,6 +2,7 @@
 import AgentAssistantEntry from './AgentAssistantEntry.vue'
 import AgentAssistantPanel from './AgentAssistantPanel.vue'
 import { useAppActivityLifecycle } from '@/composables/useAppActivityLifecycle'
+import { useTheme } from 'vuetify'
 
 type AgentAssistantEntryRef = InstanceType<typeof AgentAssistantEntry>
 
@@ -9,6 +10,7 @@ const panelOpen = ref(false)
 const thinking = ref(false)
 const entryRef = ref<AgentAssistantEntryRef | null>(null)
 const { allowsDecorativeMotion } = useAppActivityLifecycle()
+const { themeClasses } = useTheme()
 
 // 打开 Agent 面板并清空入口预览气泡。
 function openPanel() {
@@ -25,17 +27,22 @@ function handleAssistantPreview(value: string) {
 </script>
 
 <template>
-  <AgentAssistantEntry
-    ref="entryRef"
-    :active="!panelOpen"
-    :motion-active="allowsDecorativeMotion"
-    :thinking="thinking"
-    @open="openPanel"
-  />
-  <AgentAssistantPanel
-    v-model="panelOpen"
-    :motion-active="allowsDecorativeMotion"
-    @assistant-preview="handleAssistantPreview"
-    @thinking-change="thinking = $event"
-  />
+  <!-- 脱离 .v-application 的层叠上下文，确保弹窗打开时入口、消息气泡和面板仍在最上层。 -->
+  <Teleport to="body">
+    <div class="agent-assistant-layer" :class="themeClasses">
+      <AgentAssistantEntry
+        ref="entryRef"
+        :active="!panelOpen"
+        :motion-active="allowsDecorativeMotion"
+        :thinking="thinking"
+        @open="openPanel"
+      />
+      <AgentAssistantPanel
+        v-model="panelOpen"
+        :motion-active="allowsDecorativeMotion"
+        @assistant-preview="handleAssistantPreview"
+        @thinking-change="thinking = $event"
+      />
+    </div>
+  </Teleport>
 </template>
diff --git a/src/components/agent/__tests__/AgentAssistantWidget.spec.ts b/src/components/agent/__tests__/AgentAssistantWidget.spec.ts
new file mode 100644
index 00000000..18cfe8fa
--- /dev/null
+++ b/src/components/agent/__tests__/AgentAssistantWidget.spec.ts
@@ -0,0 +1,53 @@
+import { mount } from '@vue/test-utils'
+import { ref } from 'vue'
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import AgentAssistantWidget from '@/components/agent/AgentAssistantWidget.vue'
+import { AGENT_ASSISTANT_LAYER_Z_INDEX } from '@/constants/agentAssistant'
+
+vi.mock('vuetify', () => ({
+  useTheme: () => ({ themeClasses: ref('v-theme--test') }),
+}))
+
+vi.mock('@/composables/useAppActivityLifecycle', () => ({
+  useAppActivityLifecycle: () => ({ allowsDecorativeMotion: ref(true) }),
+}))
+
+describe('AgentAssistantWidget layering', () => {
+  afterEach(() => {
+    document.body
+      .querySelectorAll('.agent-assistant-layer, .agent-assistant-test-host')
+      .forEach(element => element.remove())
+  })
+
+  it('teleports the assistant outside the application stacking context while preserving the active theme', () => {
+    const host = document.createElement('div')
+    host.className = 'agent-assistant-test-host v-application'
+    document.body.append(host)
+
+    const wrapper = mount(AgentAssistantWidget, {
+      attachTo: host,
+      global: {
+        stubs: {
+          AgentAssistantEntry: { template: '<div data-agent-assistant-entry />' },
+          AgentAssistantPanel: { template: '<div data-agent-assistant-panel />' },
+        },
+      },
+    })
+
+    const layer = document.body.querySelector(':scope > .agent-assistant-layer')
+
+    expect(layer).not.toBeNull()
+    expect(host.contains(layer)).toBe(false)
+    expect(layer).toHaveClass('v-theme--test')
+    expect(layer?.querySelector('[data-agent-assistant-entry]')).not.toBeNull()
+    expect(layer?.querySelector('[data-agent-assistant-panel]')).not.toBeNull()
+
+    wrapper.unmount()
+  })
+
+  it('reserves the highest CSS stacking levels in assistant display order', () => {
+    expect(AGENT_ASSISTANT_LAYER_Z_INDEX.entry).toBe(2_147_483_645)
+    expect(AGENT_ASSISTANT_LAYER_Z_INDEX.panel).toBe(2_147_483_646)
+    expect(AGENT_ASSISTANT_LAYER_Z_INDEX.overlay).toBe(2_147_483_647)
+  })
+})
diff --git a/src/components/dialog/PluginMarketSettingDialog.vue b/src/components/dialog/PluginMarketSettingDialog.vue
index 9568237d..b0524597 100644
--- a/src/components/dialog/PluginMarketSettingDialog.vue
+++ b/src/components/dialog/PluginMarketSettingDialog.vue
@@ -24,7 +24,7 @@ const repoText = ref('')
 const newRepoUrl = ref('')
 const editingIndex = ref<number | null>(null)
 const editingUrl = ref('')
-const syncingWiki = ref(false)
+const syncingSources = ref(false)
 
 const emit = defineEmits(['save', 'close'])
 
@@ -139,10 +139,10 @@ async function saveHandle() {
   }
 }
 
-/** 从 Wiki 同步公开插件仓库清单并写入配置。 */
-async function syncWikiRepos() {
+/** 同步公开插件源清单并写入配置。 */
+async function syncPluginSources() {
   try {
-    syncingWiki.value = true
+    syncingSources.value = true
     const result: { [key: string]: any } = await api.post('system/setting/PLUGIN_MARKET/sync-wiki', {})
 
     if (result.success) {
@@ -164,7 +164,7 @@ async function syncWikiRepos() {
     console.log(error)
     $toast.error(t('dialog.pluginMarketSetting.syncFailed', { message: error instanceof Error ? error.message : '' }))
   } finally {
-    syncingWiki.value = false
+    syncingSources.value = false
   }
 }
 
@@ -483,11 +483,11 @@ onMounted(() => {
           color="success"
           variant="tonal"
           prepend-icon="mdi-cloud-sync-outline"
-          :loading="syncingWiki"
-          :disabled="syncingWiki"
-          @click="syncWikiRepos"
+          :loading="syncingSources"
+          :disabled="syncingSources"
+          @click="syncPluginSources"
         >
-          {{ t('dialog.pluginMarketSetting.syncWiki') }}
+          {{ t('dialog.pluginMarketSetting.syncSources') }}
         </VBtn>
         <VSpacer />
         <VBtn
@@ -506,6 +506,8 @@ onMounted(() => {
 </template>
 
 <style scoped lang="scss">
+/* stylelint-disable selector-pseudo-class-no-unknown */
+
 .plugin-market-dialog-card {
   display: flex;
   flex-direction: column;
@@ -570,9 +572,12 @@ onMounted(() => {
 .plugin-market-mode-switch {
   display: inline-flex;
   padding: 0.125rem;
-  border: 1px solid rgba(var(--v-theme-on-surface), 0.08);
-  border-radius: 0.375rem;
-  background: rgba(var(--v-theme-surface), 0.72);
+  border: var(--app-grouped-list-border);
+  border-radius: var(--app-control-radius);
+  -webkit-backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  background: var(--app-grouped-list-background);
+  box-shadow: var(--app-surface-shadow);
   gap: 0.125rem;
 }
 
@@ -582,7 +587,7 @@ onMounted(() => {
   justify-content: center;
   padding: 0;
   border: 0;
-  border-radius: 0.375rem;
+  border-radius: var(--app-control-radius);
   background: transparent;
   block-size: 2.25rem;
   color: rgba(var(--v-theme-on-surface), 0.68);
@@ -594,7 +599,7 @@ onMounted(() => {
     color 0.16s ease;
 
   &:hover {
-    background: rgba(var(--v-theme-primary), 0.07);
+    background: var(--app-grouped-list-hover-background);
     color: rgb(var(--v-theme-on-surface));
   }
 
@@ -604,7 +609,7 @@ onMounted(() => {
   }
 
   &.is-active {
-    background: rgba(var(--v-theme-primary), 0.12);
+    background: var(--app-grouped-list-active-background);
     color: rgb(var(--v-theme-primary));
   }
 }
@@ -624,13 +629,23 @@ onMounted(() => {
 
 .plugin-market-list-wrap {
   flex: 1;
-  background: rgba(var(--v-theme-surface), 0.72);
+  border: var(--app-grouped-list-border);
+  border-radius: var(--app-grouped-list-radius);
+  -webkit-backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  background: var(--app-grouped-list-background);
+  box-shadow: var(--app-surface-shadow);
   min-block-size: 0;
   overflow-y: auto;
 }
 
 .plugin-market-repo-list {
-  background: transparent;
+  border: 0;
+  border-radius: inherit !important;
+  -webkit-backdrop-filter: none !important;
+  backdrop-filter: none !important;
+  background: transparent !important;
+  box-shadow: none !important;
 }
 
 .plugin-market-repo-item {
@@ -681,7 +696,12 @@ onMounted(() => {
   display: flex;
   overflow: hidden;
   flex: 1;
-  background: rgba(var(--v-theme-surface), 0.72);
+  border: var(--app-grouped-list-border);
+  border-radius: var(--app-grouped-list-radius);
+  -webkit-backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  backdrop-filter: var(--app-grouped-list-backdrop-filter);
+  background: var(--app-grouped-list-background);
+  box-shadow: var(--app-surface-shadow);
   min-block-size: 0;
   transition:
     border-color 0.2s ease,
diff --git a/src/components/dialog/__tests__/PluginMarketSettingDialog.spec.ts b/src/components/dialog/__tests__/PluginMarketSettingDialog.spec.ts
new file mode 100644
index 00000000..e4ec48c9
--- /dev/null
+++ b/src/components/dialog/__tests__/PluginMarketSettingDialog.spec.ts
@@ -0,0 +1,38 @@
+import { readFileSync } from 'node:fs'
+import { cwd } from 'node:process'
+import { resolve } from 'node:path'
+import { describe, expect, it } from 'vitest'
+
+const dialogSource = readFileSync(resolve(cwd(), 'src/components/dialog/PluginMarketSettingDialog.vue'), 'utf8')
+
+function getStyleRule(selector: string) {
+  const ruleStart = dialogSource.indexOf(`${selector} {`)
+  const ruleEnd = dialogSource.indexOf('\n}', ruleStart)
+
+  expect(ruleStart).toBeGreaterThanOrEqual(0)
+  expect(ruleEnd).toBeGreaterThan(ruleStart)
+
+  return dialogSource.slice(ruleStart, ruleEnd)
+}
+
+describe('PluginMarketSettingDialog theme surfaces', () => {
+  it('uses shared theme tokens for the view switch and editor containers', () => {
+    const modeSwitchRule = getStyleRule('.plugin-market-mode-switch')
+    const listWrapRule = getStyleRule('.plugin-market-list-wrap')
+    const textareaRule = getStyleRule('.plugin-market-textarea-field')
+
+    expect(modeSwitchRule).toContain('border: var(--app-grouped-list-border)')
+    expect(modeSwitchRule).toContain('backdrop-filter: var(--app-grouped-list-backdrop-filter)')
+    expect(modeSwitchRule).toContain('background: var(--app-grouped-list-background)')
+    expect(dialogSource).toContain('background: var(--app-grouped-list-hover-background)')
+    expect(dialogSource).toContain('background: var(--app-grouped-list-active-background)')
+    expect(listWrapRule).toContain('border-radius: var(--app-grouped-list-radius)')
+    expect(listWrapRule).toContain('background: var(--app-grouped-list-background)')
+    expect(textareaRule).toContain('background: var(--app-grouped-list-background)')
+  })
+
+  it('uses plugin-source wording instead of exposing the Wiki implementation detail', () => {
+    expect(dialogSource).toContain("t('dialog.pluginMarketSetting.syncSources')")
+    expect(dialogSource).not.toContain("t('dialog.pluginMarketSetting.syncWiki')")
+  })
+})
diff --git a/src/constants/agentAssistant.ts b/src/constants/agentAssistant.ts
new file mode 100644
index 00000000..87f2b30a
--- /dev/null
+++ b/src/constants/agentAssistant.ts
@@ -0,0 +1,8 @@
+// Agent 助手需要覆盖应用内所有普通浮层，因此从 CSS 32 位层级上限向下预留内部顺序。
+const MAX_CSS_Z_INDEX = 2_147_483_647
+
+export const AGENT_ASSISTANT_LAYER_Z_INDEX = {
+  entry: MAX_CSS_Z_INDEX - 2,
+  panel: MAX_CSS_Z_INDEX - 1,
+  overlay: MAX_CSS_Z_INDEX,
+} as const
diff --git a/src/layouts/default/components/Footer.vue b/src/layouts/default/components/Footer.vue
index d2d3cfd6..b3a55511 100644
--- a/src/layouts/default/components/Footer.vue
+++ b/src/layouts/default/components/Footer.vue
@@ -4,7 +4,12 @@ import { useDisplay } from 'vuetify'
 import { NavMenu } from '@/@layouts/types'
 import { useI18n } from 'vue-i18n'
 import { useUserStore } from '@/stores'
-import { buildUserPermissionContext, filterItemsByPermission, filterMenusByPermission, hasItemPermission } from '@/utils/permission'
+import {
+  buildUserPermissionContext,
+  filterItemsByPermission,
+  filterMenusByPermission,
+  hasItemPermission,
+} from '@/utils/permission'
 import { useLaunchLoading } from '@/composables/useLaunchLoading'
 import { usePWA } from '@/composables/usePWA'
 import type { DynamicButtonMenuItem } from '@/composables/useDynamicButton'
@@ -327,8 +332,7 @@ function handleDynamicMenuItemClick(item: DynamicButtonMenuItem) {
   pointer-events: none;
 }
 
-// 底部导航挂载在 body 上，而主题定制器与 Agent 面板受 .v-application 的层叠上下文限制，
-// 无法仅靠 z-index 压过它。移动端两者都是全屏面板，打开时直接隐藏底部导航。
+// 移动端两个设置面板都是全屏展示，打开时隐藏底部导航，避免不可见控件继续参与焦点和合成。
 html[data-theme-customizer-open='true'],
 html[data-agent-assistant-open='true'] {
   .footer-nav-container {
diff --git a/src/locales/en-US.ts b/src/locales/en-US.ts
index 33f1c5f5..8fd12ce2 100644
--- a/src/locales/en-US.ts
+++ b/src/locales/en-US.ts
@@ -3061,9 +3061,9 @@ export default {
       invalidText: 'There are {count} invalid URLs in the text. Fix them before saving.',
       invalidTextIgnored: '{count} invalid URLs ignored',
       duplicateTextIgnored: 'Duplicate URLs will be removed automatically when saving.',
-      syncWiki: 'Sync Wiki',
-      syncSuccess: 'Plugin repositories synced from Wiki. {added} added, {total} total.',
-      syncFailed: 'Failed to sync Wiki: {message}!',
+      syncSources: 'Sync Plugin Sources',
+      syncSuccess: 'Plugin sources synced. {added} added, {total} total.',
+      syncFailed: 'Failed to sync plugin sources: {message}!',
       close: 'Close',
       save: 'Save',
       saveSuccess: 'Plugin repository saved successfully',
diff --git a/src/locales/zh-CN.ts b/src/locales/zh-CN.ts
index 09f34aca..5406bc0a 100644
--- a/src/locales/zh-CN.ts
+++ b/src/locales/zh-CN.ts
@@ -3006,9 +3006,9 @@ export default {
       invalidText: '文本中有 {count} 个无效地址，请修正后保存。',
       invalidTextIgnored: '已忽略 {count} 个无效地址',
       duplicateTextIgnored: '重复地址会在保存时自动去重。',
-      syncWiki: '同步 Wiki',
-      syncSuccess: '已从 Wiki 同步插件仓库，新增 {added} 个，共 {total} 个',
-      syncFailed: '同步 Wiki 失败：{message}！',
+      syncSources: '同步插件源',
+      syncSuccess: '已同步插件源，新增 {added} 个，共 {total} 个',
+      syncFailed: '同步插件源失败：{message}！',
       close: '关闭',
       save: '保存',
       saveSuccess: '插件仓库保存成功',
diff --git a/src/locales/zh-TW.ts b/src/locales/zh-TW.ts
index bdf81fbd..7a5261c5 100644
--- a/src/locales/zh-TW.ts
+++ b/src/locales/zh-TW.ts
@@ -3005,9 +3005,9 @@ export default {
       invalidText: '文字中有 {count} 個無效地址，請修正後儲存。',
       invalidTextIgnored: '已忽略 {count} 個無效地址',
       duplicateTextIgnored: '重複地址會在儲存時自動去重。',
-      syncWiki: '同步 Wiki',
-      syncSuccess: '已從 Wiki 同步插件倉庫，新增 {added} 個，共 {total} 個',
-      syncFailed: '同步 Wiki 失敗：{message}！',
+      syncSources: '同步插件源',
+      syncSuccess: '已同步插件源，新增 {added} 個，共 {total} 個',
+      syncFailed: '同步插件源失敗：{message}！',
       close: '關閉',
       save: '儲存',
       saveSuccess: '插件倉庫儲存成功',
diff --git a/src/styles/__tests__/glassOverlayMaterial.spec.ts b/src/styles/__tests__/glassOverlayMaterial.spec.ts
index 21f8f84a..2f7faa20 100644
--- a/src/styles/__tests__/glassOverlayMaterial.spec.ts
+++ b/src/styles/__tests__/glassOverlayMaterial.spec.ts
@@ -139,6 +139,23 @@ describe('glass overlay material styles', () => {
     )
   })
 
+  it('reuses the popup menu material for compact FAB buttons', () => {
+    const styles = readFileSync(resolve(cwd(), 'src/styles/themes/glass.scss'), 'utf8')
+    const ruleStart = styles.indexOf('.compact-fab .v-btn {')
+    const ruleEnd = styles.indexOf('\n  }', ruleStart)
+    const rule = styles.slice(ruleStart, ruleEnd)
+
+    expect(ruleStart).toBeGreaterThanOrEqual(0)
+    expect(rule).toContain('border: 1px solid var(--glass-border-raised) !important')
+    expect(rule).toContain('backdrop-filter: var(--glass-overlay-backdrop-filter) !important')
+    expect(rule).toContain('background-color: var(--glass-overlay-surface) !important')
+    expect(rule).toContain('background-image: var(--glass-sheen) !important')
+    expect(rule).toContain('box-shadow: var(--glass-shadow-raised) !important')
+    expect(styles).toMatch(
+      /\.compact-fab \.v-btn:hover\s*\{\s*background-color:\s*var\(--glass-overlay-surface\)\s*!important;/,
+    )
+  })
+
   it('uses the shared hover-card contract instead of a Dashboard-specific shadow rule', () => {
     const styles = readFileSync(resolve(cwd(), 'src/styles/themes/glass.scss'), 'utf8')
 
diff --git a/src/styles/themes/glass.scss b/src/styles/themes/glass.scss
index 2f56baa2..b862d0ea 100644
--- a/src/styles/themes/glass.scss
+++ b/src/styles/themes/glass.scss
@@ -603,7 +603,6 @@ html[data-theme='glass'] {
   }
 
   .nav-button,
-  .compact-fab .v-btn,
   .global-action-buttons .v-btn {
     border: 1px solid var(--glass-border) !important;
     -webkit-backdrop-filter: var(--glass-raised-backdrop-filter);
@@ -613,6 +612,16 @@ html[data-theme='glass'] {
     box-shadow: var(--glass-control-shadow) !important;
   }
 
+  // 聚合 FAB 与弹出菜单使用同一磨砂材质，展开后保持稳定底色和背景采样。
+  .compact-fab .v-btn {
+    border: 1px solid var(--glass-border-raised) !important;
+    -webkit-backdrop-filter: var(--glass-overlay-backdrop-filter) !important;
+    backdrop-filter: var(--glass-overlay-backdrop-filter) !important;
+    background-color: var(--glass-overlay-surface) !important;
+    background-image: var(--glass-sheen) !important;
+    box-shadow: var(--glass-shadow-raised) !important;
+  }
+
   .v-overlay__scrim {
     -webkit-backdrop-filter: none;
     backdrop-filter: none;
@@ -1320,6 +1329,11 @@ html[data-theme='glass'] {
       background-color: rgba(var(--v-theme-error), 42%) !important;
     }
 
+    // FAB 悬浮时保持弹出菜单材质，仅通过描边和阴影反馈交互，避免背景进一步透明。
+    .compact-fab .v-btn:hover {
+      background-color: var(--glass-overlay-surface) !important;
+    }
+
     .v-card--link:hover {
       border-color: var(--glass-border-hover) !important;
       box-shadow: var(--glass-shadow-hover) !important;