diff --git a/src/components/ThemeCustomizer.vue b/src/components/ThemeCustomizer.vue
index 7339fa3d..43f625bb 100644
--- a/src/components/ThemeCustomizer.vue
+++ b/src/components/ThemeCustomizer.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import {
   themeCustomizerPrimaryColors,
+  themeCustomizerShadowLevels,
   useThemeCustomizer,
   type ThemeCustomizerLayout,
   type ThemeCustomizerRadius,
@@ -86,62 +87,35 @@ const skinOptions = computed<Array<{ title: string; value: ThemeCustomizerSkin }
   { title: t('theme.customizer.skinBordered'), value: 'bordered' },
 ])
 
-const shadowOptions = computed<
-  Array<{
-    title: string
-    value: ThemeCustomizerShadow
-  }>
->(() => [
-  {
-    title: t('theme.customizer.shadowNone'),
-    value: 'none',
-  },
-  {
-    title: t('theme.customizer.shadowLow'),
-    value: 'low',
-  },
-  {
-    title: t('theme.customizer.shadowMedium'),
-    value: 'medium',
-  },
-  {
-    title: t('theme.customizer.shadowHigh'),
-    value: 'high',
-  },
-])
+// 当前阴影滑杆数值，界面使用 number，主题设置继续存储 Vuetify elevation 字符串档位。
+const shadowSliderValue = computed(() => Number(settings.value.shadow))
 
 const radiusOptions = computed<
   Array<{
-    previewRadius: string
     title: string
     value: ThemeCustomizerRadius
   }>
 >(() => [
   {
-    previewRadius: '4px',
+    title: t('theme.customizer.radiusNone'),
+    value: 'none',
+  },
+  {
     title: t('theme.customizer.radiusSmall'),
     value: 'small',
   },
   {
-    previewRadius: '8px',
     title: t('theme.customizer.radiusDefault'),
     value: 'default',
   },
   {
-    previewRadius: '12px',
     title: t('theme.customizer.radiusLarge'),
     value: 'large',
   },
   {
-    previewRadius: '16px',
     title: t('theme.customizer.radiusExtra'),
     value: 'extra',
   },
-  {
-    previewRadius: '24px',
-    title: t('theme.customizer.radiusHuge'),
-    value: 'huge',
-  },
 ])
 
 const layoutOptions = computed<Array<{ icon: string; title: string; value: ThemeCustomizerLayout }>>(() => [
@@ -156,7 +130,7 @@ const hasAppModeCustomization = computed(() => {
   return (
     settings.value.primaryColor !== defaultPrimaryColor ||
     settings.value.radius !== 'default' ||
-    settings.value.shadow !== 'none' ||
+    settings.value.shadow !== '0' ||
     settings.value.skin !== 'default' ||
     settings.value.theme !== 'auto'
   )
@@ -189,6 +163,19 @@ function handleLayoutChange(layout: ThemeCustomizerLayout) {
   setLayout(layout)
 }
 
+// 将 Vuetify 滑杆的数字步进写回字符串型 elevation 档位。
+function handleShadowSliderChange(value: unknown) {
+  const rawValue = Array.isArray(value) ? value[0] : value
+  const numericValue = Number(rawValue)
+
+  if (!Number.isFinite(numericValue)) return
+
+  const clampedValue = Math.min(24, Math.max(0, Math.round(numericValue)))
+  const shadow = String(clampedValue) as ThemeCustomizerShadow
+
+  if (themeCustomizerShadowLevels.includes(shadow)) setShadow(shadow)
+}
+
 async function handleResetSettings() {
   if (!appMode.value) {
     await resetSettings()
@@ -199,7 +186,7 @@ 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 setRadius('default')
-  await setShadow('none')
+  await setShadow('0')
   await setSkin('default')
   await setTheme('auto')
 }
@@ -320,7 +307,7 @@ async function handleResetSettings() {
             >
               <span
                 class="theme-customizer-radius-scene"
-                :style="{ '--theme-customizer-radius-preview': radius.previewRadius }"
+                :class="`theme-customizer-radius-scene--${radius.value}`"
               >
                 <span class="theme-customizer-radius-scene__card">
                   <span class="theme-customizer-radius-scene__badge" />
@@ -335,29 +322,41 @@ async function handleResetSettings() {
           <VDivider class="mt-7" />
 
           <h3 class="theme-customizer-section-title">{{ t('theme.customizer.shadow') }}</h3>
-          <div class="theme-customizer-preview-grid theme-customizer-preview-grid--shadow">
-            <div
-              v-for="shadow in shadowOptions"
-              :key="shadow.value"
-              class="theme-customizer-preview-option"
-              :class="{ 'is-active': settings.shadow === shadow.value }"
-              @click="setShadow(shadow.value)"
-            >
-              <span class="theme-customizer-shadow-scene" :class="`theme-customizer-shadow-scene--${shadow.value}`">
-                <span class="theme-customizer-shadow-scene__panel">
-                  <span class="theme-customizer-shadow-scene__panel-line" />
-                  <span
-                    class="theme-customizer-shadow-scene__panel-line theme-customizer-shadow-scene__panel-line--short"
-                  />
-                </span>
-
-                <span class="theme-customizer-shadow-scene__card">
-                  <span class="theme-customizer-shadow-scene__badge" />
-                  <span class="theme-customizer-shadow-scene__line theme-customizer-shadow-scene__line--short" />
-                  <span class="theme-customizer-shadow-scene__line" />
-                </span>
+          <div class="theme-customizer-shadow-slider">
+            <div class="theme-customizer-shadow-slider__header">
+              <span>{{ t('theme.customizer.shadowLevel', { level: settings.shadow }) }}</span>
+              <span>0 - 24</span>
+            </div>
+            <div class="theme-customizer-shadow-slider__control">
+              <span
+                class="theme-customizer-shadow-slider__sample"
+                :style="{ boxShadow: `var(--app-elevation-${settings.shadow})` }"
+              >
+                <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>
-              <span>{{ shadow.title }}</span>
+              <VSlider
+                :model-value="shadowSliderValue"
+                :aria-label="t('theme.customizer.shadow')"
+                :max="24"
+                :min="0"
+                :step="1"
+                color="primary"
+                density="comfortable"
+                hide-details
+                show-ticks="always"
+                thumb-label
+                tick-size="2"
+                @update:model-value="handleShadowSliderChange"
+              />
+            </div>
+            <div
+              class="theme-customizer-shadow-slider__scale"
+              aria-hidden="true"
+            >
+              <span>0</span>
+              <span>24</span>
             </div>
           </div>
 
@@ -626,10 +625,6 @@ async function handleResetSettings() {
   grid-template-columns: repeat(2, minmax(0, 1fr));
 }
 
-.theme-customizer-preview-grid--shadow {
-  grid-template-columns: repeat(2, minmax(0, 1fr));
-}
-
 .theme-customizer-preview-grid--radius {
   grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
 }
@@ -646,8 +641,7 @@ async function handleResetSettings() {
     box-shadow: none !important;
 
     .theme-customizer-mini-layout,
-    .theme-customizer-radius-scene,
-    .theme-customizer-shadow-scene {
+    .theme-customizer-radius-scene {
       border-width: 2px;
       border-color: rgb(var(--v-theme-primary));
       background: rgba(var(--v-theme-primary), 0.04);
@@ -747,6 +741,24 @@ async function handleResetSettings() {
   block-size: 90px;
   inline-size: 100%;
   min-inline-size: 0;
+
+  --theme-customizer-preview-radius: var(--app-vuetify-rounded);
+}
+
+.theme-customizer-radius-scene--none {
+  --theme-customizer-preview-radius: var(--app-vuetify-rounded-0);
+}
+
+.theme-customizer-radius-scene--small {
+  --theme-customizer-preview-radius: var(--app-vuetify-rounded-sm);
+}
+
+.theme-customizer-radius-scene--large {
+  --theme-customizer-preview-radius: var(--app-vuetify-rounded-lg);
+}
+
+.theme-customizer-radius-scene--extra {
+  --theme-customizer-preview-radius: var(--app-vuetify-rounded-xl);
 }
 
 .theme-customizer-radius-scene__card {
@@ -754,7 +766,7 @@ async function handleResetSettings() {
   display: flex;
   flex-direction: column;
   border: 1px solid rgba(var(--v-theme-on-surface), 0.08);
-  border-radius: var(--theme-customizer-radius-preview);
+  border-radius: var(--theme-customizer-preview-radius);
   background: rgb(var(--v-theme-surface));
   gap: 8px;
   inset: 16px;
@@ -765,17 +777,18 @@ async function handleResetSettings() {
 .theme-customizer-radius-scene__badge,
 .theme-customizer-radius-scene__line {
   display: block;
-  border-radius: 999px;
   background: rgba(var(--v-theme-on-surface), 0.1);
 }
 
 .theme-customizer-radius-scene__badge {
+  border-radius: var(--theme-customizer-preview-radius);
   block-size: 8px;
   inline-size: 42%;
   min-inline-size: 28px;
 }
 
 .theme-customizer-radius-scene__line {
+  border-radius: var(--theme-customizer-preview-radius);
   block-size: 7px;
 }
 
@@ -783,112 +796,89 @@ async function handleResetSettings() {
   inline-size: 66%;
 }
 
-.theme-customizer-shadow-scene {
-  position: relative;
-  display: block;
-  overflow: hidden;
+.theme-customizer-shadow-slider {
+  padding: 16px 18px 12px;
   border: 1px solid rgba(var(--v-theme-on-surface), 0.12);
-  border-radius: 10px;
-  background:
-    linear-gradient(180deg, rgba(var(--v-theme-on-surface), 0.02), rgba(var(--v-theme-on-surface), 0.06)),
-    rgb(var(--v-theme-surface));
-  block-size: 110px;
-  inline-size: 100%;
-  min-inline-size: 0;
+  border-radius: var(--app-vuetify-rounded-lg);
+  background: rgba(var(--v-theme-surface), 0.72);
 }
 
-.theme-customizer-shadow-scene__panel,
-.theme-customizer-shadow-scene__card {
-  position: absolute;
+.theme-customizer-shadow-slider__header,
+.theme-customizer-shadow-slider__scale {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.theme-customizer-shadow-slider__header {
+  color: rgba(var(--v-theme-on-surface), var(--v-medium-emphasis-opacity));
+  font-size: 0.875rem;
+  line-height: 1.3;
+  margin-block-end: 14px;
+
+  > span:first-child {
+    color: rgba(var(--v-theme-on-surface), var(--v-high-emphasis-opacity));
+    font-weight: 600;
+  }
+}
+
+.theme-customizer-shadow-slider__control {
+  display: grid;
+  align-items: center;
+  gap: 16px;
+  grid-template-columns: 56px minmax(0, 1fr);
+}
+
+.theme-customizer-shadow-slider__sample {
   display: flex;
   flex-direction: column;
+  justify-content: center;
+  border-radius: var(--app-vuetify-rounded);
   border: 1px solid rgba(var(--v-theme-on-surface), 0.08);
   background: rgb(var(--v-theme-surface));
-  box-shadow: none;
-  transition: box-shadow 0.18s ease;
+  block-size: 42px;
+  gap: 5px;
+  inline-size: 42px;
+  padding-block: 8px;
+  padding-inline: 9px;
 }
 
-.theme-customizer-shadow-scene__panel {
-  padding: 12px;
-  gap: 8px;
-  inset-block-start: 16px;
-  inset-inline: 14px;
-  min-block-size: 54px;
-}
-
-.theme-customizer-shadow-scene__card {
-  gap: 8px;
-  inset-block-end: 12px;
-  inset-inline: 20px 16px;
-  min-block-size: 46px;
-  padding-block: 10px;
-  padding-inline: 12px;
-}
-
-.theme-customizer-shadow-scene__panel-line,
-.theme-customizer-shadow-scene__line,
-.theme-customizer-shadow-scene__badge {
+.theme-customizer-shadow-slider__sample-accent,
+.theme-customizer-shadow-slider__sample-line {
   display: block;
   border-radius: 999px;
-  background: rgba(var(--v-theme-on-surface), 0.1);
 }
 
-.theme-customizer-shadow-scene__badge {
-  block-size: 6px;
-  inline-size: 34%;
-  min-inline-size: 28px;
+.theme-customizer-shadow-slider__sample-accent {
+  background: rgba(var(--v-theme-primary), 0.48);
+  block-size: 5px;
+  inline-size: 44%;
 }
 
-.theme-customizer-shadow-scene__panel-line,
-.theme-customizer-shadow-scene__line {
-  block-size: 7px;
+.theme-customizer-shadow-slider__sample-line {
+  background: rgba(var(--v-theme-on-surface), 0.12);
+  block-size: 4px;
+  inline-size: 100%;
 }
 
-.theme-customizer-shadow-scene__panel-line--short,
-.theme-customizer-shadow-scene__line--short {
-  inline-size: 62%;
+.theme-customizer-shadow-slider__sample-line--short {
+  inline-size: 68%;
 }
 
-.theme-customizer-shadow-scene--low {
-  .theme-customizer-shadow-scene__panel {
-    box-shadow:
-      0 8px 18px rgba(var(--v-theme-on-surface), 0.08),
-      0 2px 6px rgba(var(--v-theme-on-surface), 0.05);
-  }
-
-  .theme-customizer-shadow-scene__card {
-    box-shadow:
-      0 10px 22px rgba(var(--v-theme-on-surface), 0.1),
-      0 4px 10px rgba(var(--v-theme-on-surface), 0.06);
-  }
+.theme-customizer-shadow-slider__scale {
+  color: rgba(var(--v-theme-on-surface), var(--v-medium-emphasis-opacity));
+  font-size: 0.75rem;
+  line-height: 1;
+  margin-block-start: 2px;
+  margin-inline-start: 72px;
 }
 
-.theme-customizer-shadow-scene--medium {
-  .theme-customizer-shadow-scene__panel {
-    box-shadow:
-      0 12px 28px rgba(var(--v-theme-on-surface), 0.12),
-      0 4px 12px rgba(var(--v-theme-on-surface), 0.08);
-  }
-
-  .theme-customizer-shadow-scene__card {
-    box-shadow:
-      0 16px 34px rgba(var(--v-theme-on-surface), 0.14),
-      0 6px 16px rgba(var(--v-theme-on-surface), 0.09);
-  }
+.theme-customizer-shadow-slider :deep(.v-slider.v-input) {
+  margin: 0;
 }
 
-.theme-customizer-shadow-scene--high {
-  .theme-customizer-shadow-scene__panel {
-    box-shadow:
-      0 16px 38px rgba(var(--v-theme-on-surface), 0.16),
-      0 6px 18px rgba(var(--v-theme-on-surface), 0.1);
-  }
-
-  .theme-customizer-shadow-scene__card {
-    box-shadow:
-      0 22px 48px rgba(var(--v-theme-on-surface), 0.18),
-      0 8px 22px rgba(var(--v-theme-on-surface), 0.12);
-  }
+.theme-customizer-shadow-slider :deep(.v-slider-track__tick) {
+  opacity: 0.5;
 }
 
 @media (width <= 600px) {
diff --git a/src/composables/useThemeCustomizer.ts b/src/composables/useThemeCustomizer.ts
index 44d6d6bc..7d33689a 100644
--- a/src/composables/useThemeCustomizer.ts
+++ b/src/composables/useThemeCustomizer.ts
@@ -24,9 +24,37 @@ export const themeCustomizerPrimaryColors = [
   { name: 'Slate', value: '#607D8B' },
 ] as const
 
+export const themeCustomizerShadowLevels = [
+  '0',
+  '1',
+  '2',
+  '3',
+  '4',
+  '5',
+  '6',
+  '7',
+  '8',
+  '9',
+  '10',
+  '11',
+  '12',
+  '13',
+  '14',
+  '15',
+  '16',
+  '17',
+  '18',
+  '19',
+  '20',
+  '21',
+  '22',
+  '23',
+  '24',
+] as const
+
 export type ThemeCustomizerLayout = 'collapsed' | 'horizontal' | 'vertical'
-export type ThemeCustomizerRadius = 'default' | 'extra' | 'huge' | 'large' | 'small'
-export type ThemeCustomizerShadow = 'none' | 'low' | 'medium' | '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' | 'light' | 'purple' | 'transparent'
 
@@ -44,10 +72,16 @@ type VuetifyThemeApi = ReturnType<typeof useTheme>
 
 const defaultPrimaryColor = themeCustomizerPrimaryColors[0].value
 const validLayouts: ThemeCustomizerLayout[] = ['vertical', 'collapsed', 'horizontal']
-const validRadii: ThemeCustomizerRadius[] = ['small', 'default', 'large', 'extra', 'huge']
-const validShadows: ThemeCustomizerShadow[] = ['none', 'low', 'medium', 'high']
+const validRadii: ThemeCustomizerRadius[] = ['none', 'small', 'default', 'large', 'extra']
+const validShadows: readonly ThemeCustomizerShadow[] = themeCustomizerShadowLevels
 const validSkins: ThemeCustomizerSkin[] = ['default', 'bordered']
 const validThemes: ThemeCustomizerTheme[] = ['auto', 'light', 'dark', 'purple', 'transparent']
+const legacyShadowMap: Record<string, ThemeCustomizerShadow> = {
+  high: '24',
+  low: '6',
+  medium: '12',
+  none: '0',
+}
 
 let themeApplyVersion = 0
 
@@ -73,27 +107,35 @@ function getDefaultThemeCustomizerSettings(): ThemeCustomizerSettings {
     primaryColor: defaultPrimaryColor,
     radius: 'default',
     semiDarkMenu: false,
-    shadow: 'none',
+    shadow: '0',
     skin: 'default',
     theme: readStoredThemePreference(),
   }
 }
 
+/** 将旧版语义阴影档位迁移到 Vuetify elevation 数值档位。 */
+function normalizeThemeCustomizerShadow(shadow: unknown): ThemeCustomizerShadow {
+  if (validShadows.includes(shadow as ThemeCustomizerShadow)) return shadow as ThemeCustomizerShadow
+  if (typeof shadow === 'string' && legacyShadowMap[shadow]) return legacyShadowMap[shadow]
+
+  return getDefaultThemeCustomizerSettings().shadow
+}
+
 function normalizeThemeCustomizerSettings(settings: Partial<ThemeCustomizerSettings>): ThemeCustomizerSettings {
   const fallback = getDefaultThemeCustomizerSettings()
+  const storedRadius = settings.radius as string | undefined
+  const radius = storedRadius === 'huge' ? 'extra' : storedRadius
 
   return {
     layout: validLayouts.includes(settings.layout as ThemeCustomizerLayout)
       ? (settings.layout as ThemeCustomizerLayout)
       : fallback.layout,
     primaryColor: isHexColor(settings.primaryColor) ? settings.primaryColor.toUpperCase() : fallback.primaryColor,
-    radius: validRadii.includes(settings.radius as ThemeCustomizerRadius)
-      ? (settings.radius as ThemeCustomizerRadius)
+    radius: validRadii.includes(radius as ThemeCustomizerRadius)
+      ? (radius as ThemeCustomizerRadius)
       : fallback.radius,
     semiDarkMenu: typeof settings.semiDarkMenu === 'boolean' ? settings.semiDarkMenu : fallback.semiDarkMenu,
-    shadow: validShadows.includes(settings.shadow as ThemeCustomizerShadow)
-      ? (settings.shadow as ThemeCustomizerShadow)
-      : fallback.shadow,
+    shadow: normalizeThemeCustomizerShadow(settings.shadow),
     skin: validSkins.includes(settings.skin as ThemeCustomizerSkin)
       ? (settings.skin as ThemeCustomizerSkin)
       : fallback.skin,
@@ -247,7 +289,7 @@ export function isDefaultThemeCustomizerSettings(settings: ThemeCustomizerSettin
     primaryColor: defaultPrimaryColor,
     radius: 'default',
     semiDarkMenu: false,
-    shadow: 'none',
+    shadow: '0',
     skin: 'default',
     theme: 'auto',
   })
@@ -324,7 +366,7 @@ export function useThemeCustomizer() {
       primaryColor: defaultPrimaryColor,
       radius: 'default',
       semiDarkMenu: false,
-      shadow: 'none',
+      shadow: '0',
       skin: 'default',
       theme: 'auto',
     })
diff --git a/src/layouts/components/Footer.vue b/src/layouts/components/Footer.vue
index 9a364cef..54d0cfd9 100644
--- a/src/layouts/components/Footer.vue
+++ b/src/layouts/components/Footer.vue
@@ -223,7 +223,7 @@ function handleDynamicMenuItemClick(item: DynamicButtonMenuItem) {
           <VCardText class="footer-card-content">
             <!-- 添加指示器 -->
             <div ref="indicator" class="nav-indicator"></div>
-            <VBtnToggle class="footer-btn-group" :mandatory="true" v-model="currentMenu">
+            <VBtnToggle class="footer-btn-group" :mandatory="true" variant="plain" v-model="currentMenu">
               <!-- 遍历底部菜单项 -->
               <VBtn
                 v-for="menu in footerMenus"
@@ -343,6 +343,9 @@ function handleDynamicMenuItemClick(item: DynamicButtonMenuItem) {
   transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
   will-change: transform, max-inline-size, opacity;
 
+  --app-control-radius: var(--app-vuetify-rounded-pill);
+  --app-surface-radius: var(--app-vuetify-rounded-pill);
+
   // 透明主题下的特殊样式
   .v-theme--transparent & {
     backdrop-filter: blur(var(--transparent-blur-heavy, 16px));
@@ -361,13 +364,19 @@ function handleDynamicMenuItemClick(item: DynamicButtonMenuItem) {
   padding-inline: 6px;
 }
 
-.footer-btn-group {
+.footer-nav-card .footer-btn-group.v-btn-group {
   position: relative;
   display: flex;
   justify-content: space-around;
   border: none;
+  border-radius: 9999px !important;
   background-color: transparent;
+  box-shadow: none !important;
   inline-size: 100%;
+
+  &:hover {
+    box-shadow: none !important;
+  }
 }
 
 .footer-nav-btn {
@@ -377,12 +386,15 @@ function handleDynamicMenuItemClick(item: DynamicButtonMenuItem) {
   flex-grow: 1;
   align-items: center;
   justify-content: center;
+  border-radius: 9999px !important;
   background-color: transparent;
   block-size: 48px;
+  box-shadow: none !important;
 
+  &:hover,
   &.v-btn--active {
     background-color: transparent;
-    box-shadow: none;
+    box-shadow: none !important;
   }
 
   .btn-content {
diff --git a/src/locales/en-US.ts b/src/locales/en-US.ts
index 1b586e65..9a7b6ab5 100644
--- a/src/locales/en-US.ts
+++ b/src/locales/en-US.ts
@@ -170,16 +170,13 @@ export default {
       skinDefault: 'Default',
       skinBordered: 'Bordered',
       radius: 'Corners',
+      radiusNone: 'Square',
       radiusSmall: 'Small',
       radiusDefault: 'Default',
       radiusLarge: 'Large',
       radiusExtra: 'Larger',
-      radiusHuge: 'Extra Large',
       shadow: 'Shadows',
-      shadowNone: 'Flat',
-      shadowLow: 'Soft',
-      shadowMedium: 'Balanced',
-      shadowHigh: 'Bold',
+      shadowLevel: 'Level {level}',
       semiDarkMenu: 'Semi Dark Menu',
       layout: 'Layout',
       layoutVertical: 'Vertical',
diff --git a/src/locales/zh-CN.ts b/src/locales/zh-CN.ts
index 80efd176..d130712f 100644
--- a/src/locales/zh-CN.ts
+++ b/src/locales/zh-CN.ts
@@ -170,16 +170,13 @@ export default {
       skinDefault: '默认',
       skinBordered: '边框',
       radius: '圆角',
+      radiusNone: '无圆角',
       radiusSmall: '小圆角',
       radiusDefault: '默认',
       radiusLarge: '大圆角',
       radiusExtra: '更大圆角',
-      radiusHuge: '超大圆角',
       shadow: '阴影',
-      shadowNone: '无阴影',
-      shadowLow: '柔和',
-      shadowMedium: '标准',
-      shadowHigh: '强烈',
+      shadowLevel: '层级 {level}',
       semiDarkMenu: '半暗菜单',
       layout: '布局',
       layoutVertical: '垂直',
diff --git a/src/locales/zh-TW.ts b/src/locales/zh-TW.ts
index f1339ddf..475ad80f 100644
--- a/src/locales/zh-TW.ts
+++ b/src/locales/zh-TW.ts
@@ -170,16 +170,13 @@ export default {
       skinDefault: '默認',
       skinBordered: '邊框',
       radius: '圓角',
+      radiusNone: '無圓角',
       radiusSmall: '小圓角',
       radiusDefault: '默認',
       radiusLarge: '大圓角',
       radiusExtra: '更大圓角',
-      radiusHuge: '超大圓角',
       shadow: '陰影',
-      shadowNone: '無陰影',
-      shadowLow: '柔和',
-      shadowMedium: '標準',
-      shadowHigh: '強烈',
+      shadowLevel: '層級 {level}',
       semiDarkMenu: '半暗菜單',
       layout: '佈局',
       layoutVertical: '垂直',
diff --git a/src/styles/common.scss b/src/styles/common.scss
index f1070196..cd528d7b 100644
--- a/src/styles/common.scss
+++ b/src/styles/common.scss
@@ -1,6 +1,30 @@
+/* stylelint-disable custom-property-pattern */
 /* stylelint-disable no-duplicate-selectors */
 /* stylelint-disable scss/at-rule-no-unknown */
 /* stylelint-disable no-descending-specificity */
+@use 'sass:map';
+@use 'vuetify/settings' as vuetify-settings;
+
+// 返回 Vuetify 指定 elevation 的完整三层 box-shadow，供主题定制器映射全局阴影档位。
+@function app-vuetify-elevation($level) {
+  @return map.get(vuetify-settings.$shadow-key-umbra, $level),
+    map.get(vuetify-settings.$shadow-key-penumbra, $level),
+    map.get(vuetify-settings.$shadow-key-ambient, $level);
+}
+
+// 将相对阴影层级限制在 Vuetify elevation 的 0 到 24 档范围内。
+@function app-clamp-elevation($level) {
+  @if $level < 0 {
+    @return 0;
+  }
+
+  @if $level > 24 {
+    @return 24;
+  }
+
+  @return $level;
+}
+
 // 公共样式 - 所有主题都需要
 @tailwind base;
 @tailwind components;
@@ -38,24 +62,36 @@ html.quick-access-scroll-locked body {
   }
 }
 
-// 全局卡片外观 token：圆角和阴影在主题定制器中即时切换。
+// 全局外观 token：圆角和阴影复用 Vuetify 的 rounded / elevation 分级。
 html {
-  --app-theme-surface-radius: 8px;
+  --app-vuetify-rounded-0: #{map.get(vuetify-settings.$rounded, 0)};
+  --app-vuetify-rounded-sm: #{map.get(vuetify-settings.$rounded, 'sm')};
+  --app-vuetify-rounded: #{map.get(vuetify-settings.$rounded, null)};
+  --app-vuetify-rounded-lg: #{map.get(vuetify-settings.$rounded, 'lg')};
+  --app-vuetify-rounded-xl: #{map.get(vuetify-settings.$rounded, 'xl')};
+  --app-vuetify-rounded-pill: #{map.get(vuetify-settings.$rounded, 'pill')};
+
+  @for $level from 0 through 24 {
+    --app-elevation-#{$level}: #{app-vuetify-elevation($level)};
+  }
+
+  --app-theme-surface-radius: var(--app-vuetify-rounded);
   --app-surface-radius: var(--app-theme-surface-radius);
-  --app-field-radius: var(--app-theme-surface-radius);
+  --app-field-radius: var(--app-vuetify-rounded);
+  --app-control-radius: var(--app-vuetify-rounded);
+  --app-overlay-radius: var(--app-vuetify-rounded);
   --app-surface-border-opacity: 0.06;
   --app-surface-border: 1px solid rgba(var(--v-theme-on-surface), var(--app-surface-border-opacity));
-  --app-shadow-rgb: 15, 23, 42;
-  --app-card-rest-shadow: none;
-  --app-card-hover-shadow: none;
-  --app-fab-shadow: none;
-  --app-fab-shadow-strong: none;
-  --app-fab-shadow-hover: none;
-  --app-fab-shadow-strong-hover: none;
-  --app-fab-shadow-active: none;
-  --app-overlay-shadow: none;
-  --app-surface-shadow: none;
-  --app-surface-hover-shadow: none;
+  --app-card-rest-shadow: var(--app-elevation-0);
+  --app-card-hover-shadow: var(--app-elevation-0);
+  --app-fab-shadow: var(--app-elevation-0);
+  --app-fab-shadow-strong: var(--app-elevation-0);
+  --app-fab-shadow-hover: var(--app-elevation-0);
+  --app-fab-shadow-strong-hover: var(--app-elevation-0);
+  --app-fab-shadow-active: var(--app-elevation-0);
+  --app-overlay-shadow: var(--app-elevation-0);
+  --app-surface-shadow: var(--app-elevation-0);
+  --app-surface-hover-shadow: var(--app-elevation-0);
   --mp-motion-duration-page: 180ms;
   --mp-motion-duration-overlay: 160ms;
   --mp-motion-ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
@@ -66,65 +102,47 @@ html[data-theme-skin='bordered'] {
   --app-surface-border-opacity: 0.1;
 }
 
+html[data-theme-radius='none'] {
+  --app-theme-surface-radius: var(--app-vuetify-rounded-0);
+  --app-field-radius: var(--app-vuetify-rounded-0);
+  --app-control-radius: var(--app-vuetify-rounded-0);
+  --app-overlay-radius: var(--app-vuetify-rounded-0);
+}
+
 html[data-theme-radius='small'] {
-  --app-theme-surface-radius: 4px;
+  --app-theme-surface-radius: var(--app-vuetify-rounded-sm);
+  --app-field-radius: var(--app-vuetify-rounded-sm);
+  --app-control-radius: var(--app-vuetify-rounded-sm);
+  --app-overlay-radius: var(--app-vuetify-rounded-sm);
 }
 
 html[data-theme-radius='large'] {
-  --app-theme-surface-radius: 12px;
+  --app-theme-surface-radius: var(--app-vuetify-rounded-lg);
+  --app-field-radius: var(--app-vuetify-rounded-lg);
+  --app-control-radius: var(--app-vuetify-rounded-lg);
+  --app-overlay-radius: var(--app-vuetify-rounded-lg);
 }
 
 html[data-theme-radius='extra'] {
-  --app-theme-surface-radius: 16px;
+  --app-theme-surface-radius: var(--app-vuetify-rounded-xl);
+  --app-field-radius: var(--app-vuetify-rounded-xl);
+  --app-control-radius: var(--app-vuetify-rounded-xl);
+  --app-overlay-radius: var(--app-vuetify-rounded-xl);
 }
 
-html[data-theme-radius='huge'] {
-  --app-theme-surface-radius: 24px;
-}
-
-html[data-theme='dark'],
-html[data-theme='purple'],
-html[data-theme='transparent'] {
-  --app-shadow-rgb: 0, 0, 0;
-}
-
-html[data-theme-shadow='low'] {
-  --app-card-rest-shadow: 0 10px 24px rgba(var(--app-shadow-rgb), 0.06), 0 2px 8px rgba(var(--app-shadow-rgb), 0.04);
-  --app-card-hover-shadow: 0 14px 30px rgba(var(--app-shadow-rgb), 0.08), 0 4px 12px rgba(var(--app-shadow-rgb), 0.05);
-  --app-fab-shadow: 0 16px 34px rgba(var(--app-shadow-rgb), 0.16), 0 6px 16px rgba(var(--app-shadow-rgb), 0.1);
-  --app-fab-shadow-strong: 0 20px 40px rgba(var(--app-shadow-rgb), 0.2), 0 8px 18px rgba(var(--app-shadow-rgb), 0.12);
-  --app-fab-shadow-hover: 0 22px 42px rgba(var(--app-shadow-rgb), 0.22), 0 8px 18px rgba(var(--app-shadow-rgb), 0.12);
-  --app-fab-shadow-strong-hover: 0 26px 46px rgba(var(--app-shadow-rgb), 0.24), 0 10px 22px rgba(var(--app-shadow-rgb), 0.14);
-  --app-fab-shadow-active: 0 10px 22px rgba(var(--app-shadow-rgb), 0.16), 0 3px 8px rgba(var(--app-shadow-rgb), 0.1);
-  --app-overlay-shadow: 0 18px 42px rgba(var(--app-shadow-rgb), 0.14), 0 6px 18px rgba(var(--app-shadow-rgb), 0.08);
-  --app-surface-shadow: 0 10px 24px rgba(var(--app-shadow-rgb), 0.07), 0 2px 8px rgba(var(--app-shadow-rgb), 0.05);
-  --app-surface-hover-shadow: 0 14px 30px rgba(var(--app-shadow-rgb), 0.09), 0 4px 12px rgba(var(--app-shadow-rgb), 0.06);
-}
-
-html[data-theme-shadow='medium'] {
-  --app-card-rest-shadow: 0 14px 32px rgba(var(--app-shadow-rgb), 0.09), 0 4px 12px rgba(var(--app-shadow-rgb), 0.06);
-  --app-card-hover-shadow: 0 18px 40px rgba(var(--app-shadow-rgb), 0.11), 0 6px 16px rgba(var(--app-shadow-rgb), 0.07);
-  --app-fab-shadow: 0 18px 40px rgba(var(--app-shadow-rgb), 0.2), 0 7px 18px rgba(var(--app-shadow-rgb), 0.12);
-  --app-fab-shadow-strong: 0 24px 48px rgba(var(--app-shadow-rgb), 0.24), 0 10px 24px rgba(var(--app-shadow-rgb), 0.14);
-  --app-fab-shadow-hover: 0 24px 46px rgba(var(--app-shadow-rgb), 0.24), 0 10px 22px rgba(var(--app-shadow-rgb), 0.14);
-  --app-fab-shadow-strong-hover: 0 30px 54px rgba(var(--app-shadow-rgb), 0.28), 0 12px 28px rgba(var(--app-shadow-rgb), 0.16);
-  --app-fab-shadow-active: 0 12px 26px rgba(var(--app-shadow-rgb), 0.18), 0 4px 10px rgba(var(--app-shadow-rgb), 0.12);
-  --app-overlay-shadow: 0 24px 56px rgba(var(--app-shadow-rgb), 0.18), 0 10px 24px rgba(var(--app-shadow-rgb), 0.1);
-  --app-surface-shadow: 0 14px 32px rgba(var(--app-shadow-rgb), 0.1), 0 4px 12px rgba(var(--app-shadow-rgb), 0.07);
-  --app-surface-hover-shadow: 0 18px 40px rgba(var(--app-shadow-rgb), 0.12), 0 6px 16px rgba(var(--app-shadow-rgb), 0.08);
-}
-
-html[data-theme-shadow='high'] {
-  --app-card-rest-shadow: 0 18px 40px rgba(var(--app-shadow-rgb), 0.12), 0 6px 18px rgba(var(--app-shadow-rgb), 0.08);
-  --app-card-hover-shadow: 0 22px 50px rgba(var(--app-shadow-rgb), 0.15), 0 8px 22px rgba(var(--app-shadow-rgb), 0.1);
-  --app-fab-shadow: 0 22px 48px rgba(var(--app-shadow-rgb), 0.24), 0 10px 24px rgba(var(--app-shadow-rgb), 0.14);
-  --app-fab-shadow-strong: 0 28px 58px rgba(var(--app-shadow-rgb), 0.3), 0 12px 30px rgba(var(--app-shadow-rgb), 0.18);
-  --app-fab-shadow-hover: 0 28px 56px rgba(var(--app-shadow-rgb), 0.28), 0 12px 28px rgba(var(--app-shadow-rgb), 0.17);
-  --app-fab-shadow-strong-hover: 0 34px 64px rgba(var(--app-shadow-rgb), 0.34), 0 14px 32px rgba(var(--app-shadow-rgb), 0.2);
-  --app-fab-shadow-active: 0 14px 30px rgba(var(--app-shadow-rgb), 0.22), 0 5px 12px rgba(var(--app-shadow-rgb), 0.14);
-  --app-overlay-shadow: 0 30px 70px rgba(var(--app-shadow-rgb), 0.22), 0 14px 30px rgba(var(--app-shadow-rgb), 0.12);
-  --app-surface-shadow: 0 18px 40px rgba(var(--app-shadow-rgb), 0.13), 0 6px 18px rgba(var(--app-shadow-rgb), 0.09);
-  --app-surface-hover-shadow: 0 22px 50px rgba(var(--app-shadow-rgb), 0.16), 0 8px 22px rgba(var(--app-shadow-rgb), 0.11);
+@for $level from 1 through 24 {
+  html[data-theme-shadow='#{$level}'] {
+    --app-card-rest-shadow: var(--app-elevation-#{app-clamp-elevation($level - 1)});
+    --app-card-hover-shadow: var(--app-elevation-#{app-clamp-elevation($level + 1)});
+    --app-fab-shadow: var(--app-elevation-#{$level});
+    --app-fab-shadow-active: var(--app-elevation-#{app-clamp-elevation($level - 2)});
+    --app-fab-shadow-hover: var(--app-elevation-#{app-clamp-elevation($level + 3)});
+    --app-fab-shadow-strong: var(--app-elevation-#{app-clamp-elevation($level + 2)});
+    --app-fab-shadow-strong-hover: var(--app-elevation-#{app-clamp-elevation($level + 4)});
+    --app-overlay-shadow: var(--app-elevation-#{app-clamp-elevation($level + 6)});
+    --app-surface-shadow: var(--app-elevation-#{$level});
+    --app-surface-hover-shadow: var(--app-elevation-#{app-clamp-elevation($level + 2)});
+  }
 }
 
 // 进度条样式
@@ -421,12 +439,12 @@ html[data-theme-shadow='high'] {
 }
 
 .v-btn:not(.v-btn--rounded, .v-btn--flat, .v-btn--icon, [class^='rounded-'], [class*=' rounded-']) {
-  border-radius: var(--app-surface-radius);
+  border-radius: var(--app-control-radius);
   transition: border-radius 0.2s ease;
 }
 
 .v-btn-group:not(.v-btn-group--variant-plain, .v-btn-group--variant-text) {
-  border-radius: var(--app-surface-radius);
+  border-radius: var(--app-control-radius);
   box-shadow: var(--app-surface-shadow) !important;
   transition: box-shadow 0.2s ease, border-radius 0.2s ease;
 }
@@ -703,7 +721,7 @@ html[data-theme="transparent"] .app-card-colorful,
 }
 
 .Vue-Toastification__toast {
-  border-radius: var(--app-surface-radius);
+  border-radius: var(--app-overlay-radius);
   box-shadow: var(--app-overlay-shadow);
 }
 
@@ -1175,6 +1193,7 @@ html[data-theme="transparent"] .app-card-colorful,
 .v-bottom-sheet > .v-bottom-sheet__content.v-overlay__content > .v-card,
 .v-menu > .v-overlay__content > .v-card,
 .v-menu > .v-overlay__content > .v-list {
+  border-radius: var(--app-overlay-radius) !important;
   box-shadow: var(--app-overlay-shadow) !important;
 }
 
@@ -1191,8 +1210,8 @@ html[data-theme="transparent"] .app-card-colorful,
     overflow: hidden;
     border-end-end-radius: 0 !important;
     border-end-start-radius: 0 !important;
-    border-start-end-radius: var(--app-theme-surface-radius) !important;
-    border-start-start-radius: var(--app-theme-surface-radius) !important;
+    border-start-end-radius: var(--app-overlay-radius) !important;
+    border-start-start-radius: var(--app-overlay-radius) !important;
   }
 
   .v-dialog--fullscreen > .v-overlay__content > .v-card,
@@ -1201,8 +1220,8 @@ html[data-theme="transparent"] .app-card-colorful,
   .v-dialog--fullscreen > .v-overlay__content > form > .v-sheet {
     border-end-end-radius: 0 !important;
     border-end-start-radius: 0 !important;
-    border-start-end-radius: var(--app-theme-surface-radius) !important;
-    border-start-start-radius: var(--app-theme-surface-radius) !important;
+    border-start-end-radius: var(--app-overlay-radius) !important;
+    border-start-start-radius: var(--app-overlay-radius) !important;
   }
 }