diff --git a/web/src/App.vue b/web/src/App.vue
index c150d922..7604f8c8 100644
--- a/web/src/App.vue
+++ b/web/src/App.vue
@@ -1,11 +1,24 @@
 <script setup lang="ts">
 import 'vue-sonner/style.css'
-import { KeepAlive, onMounted, watch } from 'vue'
+import '@/sonner-overrides.css'
+import { computed, KeepAlive, onMounted, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
 import { RouterView, useRouter } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
 import { useSystemStore } from '@/stores/system'
 import { Toaster } from '@/components/ui/sonner'
 
+const { t } = useI18n()
+
+/** Defaults merged into every toast; duration also set on `<Toaster>` for clarity */
+const toasterToastOptions = computed(() => ({
+  closeButtonAriaLabel: t('toast.closeNotification'),
+  classes: {
+    title: 'text-sm font-semibold leading-snug tracking-tight text-popover-foreground',
+    description: 'text-sm leading-relaxed text-muted-foreground',
+  },
+}))
+
 const router = useRouter()
 const authStore = useAuthStore()
 const systemStore = useSystemStore()
@@ -56,5 +69,18 @@ watch(
     </KeepAlive>
     <component :is="Component" v-if="route.name !== 'Console' || !authStore.isAuthenticated" />
   </RouterView>
-  <Toaster rich-colors close-button position="top-center" />
+  <Toaster
+    rich-colors
+    close-button
+    position="top-center"
+    close-button-position="top-right"
+    theme="system"
+    :duration="4000"
+    :gap="14"
+    :visible-toasts="3"
+    :offset="{ top: '1rem', right: '1rem', left: '1rem', bottom: '1rem' }"
+    :mobile-offset="{ top: 'max(1rem, env(safe-area-inset-top))', bottom: 'max(1rem, env(safe-area-inset-bottom))', left: '1rem', right: '1rem' }"
+    :toast-options="toasterToastOptions"
+    :container-aria-label="t('toast.notificationsRegion')"
+  />
 </template>
diff --git a/web/src/components/AudioConfigPopover.vue b/web/src/components/AudioConfigPopover.vue
index 76fd7a0d..f2ce1b6b 100644
--- a/web/src/components/AudioConfigPopover.vue
+++ b/web/src/components/AudioConfigPopover.vue
@@ -1,7 +1,6 @@
 <script setup lang="ts">
 import { ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
-import { toast } from 'vue-sonner'
 import { Button } from '@/components/ui/button'
 import { Label } from '@/components/ui/label'
 import { Separator } from '@/components/ui/separator'
@@ -122,8 +121,6 @@ async function applyConfig() {
       }
       unifiedAudio.disconnect()
     }
-
-    toast.success(t('config.applied'))
   } catch (e) {
     console.info('[AudioConfig] Failed to apply config:', e)
   } finally {
diff --git a/web/src/components/HidConfigPopover.vue b/web/src/components/HidConfigPopover.vue
index 2c3ad866..a075e66b 100644
--- a/web/src/components/HidConfigPopover.vue
+++ b/web/src/components/HidConfigPopover.vue
@@ -202,8 +202,6 @@ async function applyHidConfig() {
 
     await configStore.updateHid(config)
 
-    toast.success(t('config.applied'))
-
     // HID state will be updated via WebSocket device_info event
   } catch (e) {
     console.info('[HidConfig] Failed to apply config:', e)
diff --git a/web/src/components/MsdDialog.vue b/web/src/components/MsdDialog.vue
index 10bc1eb4..78a8ac2d 100644
--- a/web/src/components/MsdDialog.vue
+++ b/web/src/components/MsdDialog.vue
@@ -207,7 +207,6 @@ async function connectImage(image: MsdImage) {
   try {
     await msdApi.connect('image', image.id, cdromMode.value, readOnly.value)
     await systemStore.fetchMsdState()
-    toast.success(t('msd.imageMounted', { name: image.name }))
   } catch (e) {
     console.error('Failed to connect image:', e)
   } finally {
@@ -225,7 +224,6 @@ async function connectDrive() {
   try {
     await msdApi.connect('drive')
     await systemStore.fetchMsdState()
-    toast.success(t('common.connected'))
   } catch (e) {
     console.error('Failed to connect drive:', e)
   } finally {
@@ -242,7 +240,6 @@ async function disconnect() {
   try {
     await msdApi.disconnect()
     await systemStore.fetchMsdState()
-    toast.success(t('msd.disconnected'))
   } catch (e) {
     console.error('Failed to disconnect:', e)
   } finally {
@@ -263,11 +260,9 @@ async function executeDelete() {
     if (deleteTarget.value.type === 'image') {
       await msdApi.deleteImage(deleteTarget.value.id)
       images.value = images.value.filter(i => i.id !== deleteTarget.value!.id)
-      toast.success(t('common.success'))
     } else {
       await msdApi.deleteDriveFile(deleteTarget.value.id)
       await loadDriveFiles()
-      toast.success(t('common.success'))
     }
   } catch (e) {
     console.error('Failed to delete:', e)
@@ -313,7 +308,6 @@ async function createDrive() {
     await loadDriveInfo()
     await loadDriveFiles()
     showDriveInitDialog.value = false
-    toast.success(t('common.success'))
   } catch (e) {
     console.error('Failed to initialize drive:', e)
   } finally {
@@ -330,7 +324,6 @@ async function deleteDrive() {
     driveFiles.value = []
     currentPath.value = '/'
     showDeleteDriveDialog.value = false
-    toast.success(t('msd.driveDeleted'))
   } catch (e) {
     console.error('Failed to delete drive:', e)
   } finally {
diff --git a/web/src/components/VideoConfigPopover.vue b/web/src/components/VideoConfigPopover.vue
index 831edf06..4197d554 100644
--- a/web/src/components/VideoConfigPopover.vue
+++ b/web/src/components/VideoConfigPopover.vue
@@ -525,7 +525,6 @@ async function applyVideoConfig() {
       fps: toConfigFps(selectedFps.value),
     })
 
-    toast.success(t('config.applied'))
     isDirty.value = false
     // Stream state will be updated via WebSocket system.device_info event
   } catch (e) {
diff --git a/web/src/components/ui/sonner/Sonner.vue b/web/src/components/ui/sonner/Sonner.vue
index 6830896b..f6e856a8 100644
--- a/web/src/components/ui/sonner/Sonner.vue
+++ b/web/src/components/ui/sonner/Sonner.vue
@@ -14,7 +14,7 @@ const props = defineProps<ToasterProps>()
       '--normal-bg': 'var(--popover)',
       '--normal-text': 'var(--popover-foreground)',
       '--normal-border': 'var(--border)',
-      '--border-radius': 'var(--radius)',
+      '--border-radius': 'calc(var(--radius) + 0.1875rem)',
     }"
     v-bind="props"
   >
@@ -36,7 +36,7 @@ const props = defineProps<ToasterProps>()
       </div>
     </template>
     <template #close-icon>
-      <XIcon class="size-4" />
+      <XIcon class="size-3 shrink-0" />
     </template>
   </Sonner>
 </template>
diff --git a/web/src/composables/useConfigPopover.ts b/web/src/composables/useConfigPopover.ts
index 4ef50945..bbfc3c0a 100644
--- a/web/src/composables/useConfigPopover.ts
+++ b/web/src/composables/useConfigPopover.ts
@@ -1,7 +1,5 @@
 
 import { ref, watch, type Ref } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { toast } from 'vue-sonner'
 
 export interface UseConfigPopoverOptions {
   /** Reactive open state from props */
@@ -13,8 +11,6 @@ export interface UseConfigPopoverOptions {
 }
 
 export function useConfigPopover(options: UseConfigPopoverOptions) {
-  const { t } = useI18n()
-
   const applying = ref(false)
   const loadingDevices = ref(false)
 
@@ -36,7 +32,6 @@ export function useConfigPopover(options: UseConfigPopoverOptions) {
     applying.value = true
     try {
       await applyFn()
-      toast.success(t('config.applied'))
     } catch (e) {
       console.info('[ConfigPopover] Apply failed:', e)
     } finally {
diff --git a/web/src/composables/useConsoleEvents.ts b/web/src/composables/useConsoleEvents.ts
index 8045aaac..3c770111 100644
--- a/web/src/composables/useConsoleEvents.ts
+++ b/web/src/composables/useConsoleEvents.ts
@@ -43,12 +43,6 @@ export function useConsoleEvents(handlers: ConsoleEventHandlers) {
   }
 
   function handleStreamReconnecting(data: { device: string; attempt: number }) {
-    if (data.attempt === 1 || data.attempt % 5 === 0) {
-      toast.info(t('console.deviceRecovering'), {
-        description: t('console.deviceRecoveringDesc', { attempt: data.attempt }),
-        duration: 3000,
-      })
-    }
     handlers.onStreamReconnecting?.(data)
   }
 
@@ -56,10 +50,6 @@ export function useConsoleEvents(handlers: ConsoleEventHandlers) {
     if (systemStore.stream) {
       systemStore.stream.online = true
     }
-    toast.success(t('console.deviceRecovered'), {
-      description: t('console.deviceRecoveredDesc'),
-      duration: 3000,
-    })
     handlers.onStreamRecovered?.(_data)
   }
 
diff --git a/web/src/i18n/en-US.ts b/web/src/i18n/en-US.ts
index 150670d6..ae15e774 100644
--- a/web/src/i18n/en-US.ts
+++ b/web/src/i18n/en-US.ts
@@ -43,6 +43,10 @@ export default {
     toggleLanguage: 'Toggle language',
     retry: 'Retry',
   },
+  toast: {
+    closeNotification: 'Dismiss notification',
+    notificationsRegion: 'Notifications',
+  },
   api: {
     operationFailed: 'Operation Failed',
     operationFailedDesc: 'Operation failed',
diff --git a/web/src/i18n/zh-CN.ts b/web/src/i18n/zh-CN.ts
index 89c11640..7ce246e2 100644
--- a/web/src/i18n/zh-CN.ts
+++ b/web/src/i18n/zh-CN.ts
@@ -43,6 +43,10 @@ export default {
     toggleLanguage: '切换语言',
     retry: '重试',
   },
+  toast: {
+    closeNotification: '关闭通知',
+    notificationsRegion: '通知',
+  },
   api: {
     operationFailed: '操作失败',
     operationFailedDesc: '操作失败',
diff --git a/web/src/sonner-overrides.css b/web/src/sonner-overrides.css
new file mode 100644
index 00000000..ca93f8af
--- /dev/null
+++ b/web/src/sonner-overrides.css
@@ -0,0 +1,205 @@
+/* Must load after vue-sonner/style.css — overrides Sonner defaults to match shadcn-style tokens */
+
+[data-sonner-toaster] {
+  font-family: inherit;
+  /* Inline default is 356px — flatten bar reads better a bit wider */
+  --width: min(30rem, calc(100vw - 2rem)) !important;
+}
+
+/* Top-right preset: tuck close control inside (+ vertically center) instead of protruding outside */
+[data-sonner-toaster] [data-close-button-position='top-right'] {
+  --toast-close-button-right: 0.5rem;
+  --toast-close-button-left: unset;
+  --toast-close-button-top: 50%;
+  --toast-close-button-bottom: unset;
+  --toast-close-button-transform: translateY(-50%);
+}
+
+[data-sonner-toast][data-styled='true'] {
+  font-size: 0.875rem;
+  line-height: 1.35;
+  gap: 0.5rem;
+  box-shadow:
+    0 1px 3px rgb(0 0 0 / 0.06),
+    0 1px 2px rgb(0 0 0 / 0.04);
+  padding: 0.5625rem 2.125rem 0.5625rem 0.75rem;
+  align-items: center;
+}
+
+[data-sonner-toast][data-styled='true'] [data-content] {
+  gap: 0.0625rem;
+}
+
+:is(.dark *) [data-sonner-toast][data-styled='true'] {
+  box-shadow:
+    0 1px 3px rgb(0 0 0 / 0.28),
+    0 1px 2px rgb(0 0 0 / 0.2);
+}
+
+[data-sonner-toast]:focus-visible {
+  outline: none;
+  box-shadow:
+    0 1px 3px rgb(0 0 0 / 0.06),
+    0 1px 2px rgb(0 0 0 / 0.04),
+    0 0 0 2px var(--background),
+    0 0 0 4px color-mix(in oklch, var(--ring) 55%, transparent);
+}
+
+:is(.dark *) [data-sonner-toast]:focus-visible {
+  box-shadow:
+    0 1px 3px rgb(0 0 0 / 0.28),
+    0 1px 2px rgb(0 0 0 / 0.2),
+    0 0 0 2px var(--background),
+    0 0 0 4px color-mix(in oklch, var(--ring) 55%, transparent);
+}
+
+html body [data-sonner-toast][data-styled='true'] [data-title] {
+  font-weight: 600;
+}
+
+html body [data-sonner-toast][data-styled='true'] [data-description] {
+  color: var(--muted-foreground);
+}
+
+/* Only semantic variants keep description tied to tinted foreground */
+html body [data-rich-colors='true'][data-sonner-toast][data-type='error'][data-styled='true'] [data-description],
+html body [data-rich-colors='true'][data-sonner-toast][data-type='warning'][data-styled='true'] [data-description],
+html body [data-rich-colors='true'][data-sonner-toast][data-type='success'][data-styled='true'] [data-description],
+html body [data-rich-colors='true'][data-sonner-toast][data-type='info'][data-styled='true'] [data-description] {
+  color: inherit;
+  opacity: 0.92;
+}
+
+/* Compact ghost close (inside strip, smaller hit target) */
+[data-sonner-toast][data-styled='true'] [data-close-button] {
+  height: 1.5rem;
+  width: 1.5rem;
+  min-height: 1.5rem;
+  min-width: 1.5rem;
+  border-radius: calc(var(--radius) - 4px);
+  border: none;
+  background: transparent;
+  color: var(--muted-foreground);
+}
+
+[data-sonner-toast][data-styled='true'] [data-close-button]:hover {
+  background: color-mix(in oklch, var(--muted) 65%, transparent);
+  color: var(--foreground);
+}
+
+[data-sonner-toast][data-styled='true']:hover [data-close-button]:hover {
+  background: color-mix(in oklch, var(--muted) 65%, transparent);
+}
+
+[data-sonner-toast][data-styled='true'] [data-close-button]:focus-visible {
+  box-shadow:
+    0 0 0 2px var(--background),
+    0 0 0 4px color-mix(in oklch, var(--ring) 50%, transparent);
+}
+
+/* Semantic: soft tinted surface + theme tokens */
+[data-rich-colors='true'][data-sonner-toast][data-type='error'][data-styled='true'] {
+  background: color-mix(in oklch, var(--destructive) 14%, var(--popover));
+  border-color: color-mix(in oklch, var(--destructive) 38%, var(--border));
+  color: var(--destructive);
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='error'][data-styled='true'] [data-close-button] {
+  background: transparent;
+  border: none;
+  color: inherit;
+  opacity: 0.88;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='error'][data-styled='true'] [data-close-button]:hover {
+  background: color-mix(in oklch, var(--destructive) 16%, transparent);
+  opacity: 1;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='warning'][data-styled='true'] {
+  background: color-mix(in oklch, var(--chart-4) 16%, var(--popover));
+  border-color: color-mix(in oklch, var(--chart-4) 36%, var(--border));
+  color: color-mix(in oklch, var(--chart-4) 48%, var(--foreground));
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='warning'][data-styled='true'] [data-close-button] {
+  background: transparent;
+  border: none;
+  color: inherit;
+  opacity: 0.88;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='warning'][data-styled='true'] [data-close-button]:hover {
+  background: color-mix(in oklch, var(--chart-4) 18%, transparent);
+  opacity: 1;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='success'][data-styled='true'] {
+  background: color-mix(in oklch, var(--chart-2) 14%, var(--popover));
+  border-color: color-mix(in oklch, var(--chart-2) 34%, var(--border));
+  color: color-mix(in oklch, var(--chart-2) 42%, var(--foreground));
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='success'][data-styled='true'] [data-close-button] {
+  background: transparent;
+  border: none;
+  color: inherit;
+  opacity: 0.88;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='success'][data-styled='true'] [data-close-button]:hover {
+  background: color-mix(in oklch, var(--chart-2) 16%, transparent);
+  opacity: 1;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='info'][data-styled='true'] {
+  background: color-mix(in oklch, var(--chart-1) 14%, var(--popover));
+  border-color: color-mix(in oklch, var(--chart-1) 34%, var(--border));
+  color: color-mix(in oklch, var(--chart-1) 42%, var(--foreground));
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='info'][data-styled='true'] [data-close-button] {
+  background: transparent;
+  border: none;
+  color: inherit;
+  opacity: 0.88;
+}
+
+[data-rich-colors='true'][data-sonner-toast][data-type='info'][data-styled='true'] [data-close-button]:hover {
+  background: color-mix(in oklch, var(--chart-1) 16%, transparent);
+  opacity: 1;
+}
+
+[data-sonner-toast][data-styled='true'] [data-button]:not([data-cancel]) {
+  border-radius: calc(var(--radius) - 2px);
+  height: 2rem;
+  padding-inline: 0.75rem;
+  font-size: 0.75rem;
+  font-weight: 500;
+  background: var(--primary);
+  color: var(--primary-foreground);
+}
+
+[data-sonner-toast][data-styled='true'] [data-button]:not([data-cancel]):focus-visible {
+  outline: none;
+  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--ring);
+}
+
+[data-sonner-toast][data-styled='true'] [data-cancel] {
+  border-radius: calc(var(--radius) - 2px);
+  height: 2rem;
+  padding-inline: 0.75rem;
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--foreground);
+  background: color-mix(in oklch, var(--muted) 88%, transparent);
+  border: 1px solid var(--border);
+}
+
+[data-sonner-toast][data-styled='true'] [data-cancel]:hover {
+  background: var(--muted);
+}
+
+.sonner-loading-bar {
+  background: var(--muted-foreground);
+}
diff --git a/web/src/views/ConsoleView.vue b/web/src/views/ConsoleView.vue
index 372abd79..cecf8714 100644
--- a/web/src/views/ConsoleView.vue
+++ b/web/src/views/ConsoleView.vue
@@ -835,7 +835,7 @@ async function handleAudioStateChanged(data: { streaming: boolean; device: strin
   await unifiedAudio.connect()
 }
 
-function handleStreamConfigChanging(data: any) {
+function handleStreamConfigChanging(_data: any) {
   if (retryTimeoutId !== null) {
     clearTimeout(retryTimeoutId)
     retryTimeoutId = null
@@ -853,14 +853,9 @@ function handleStreamConfigChanging(data: any) {
   consecutiveErrors = 0
 
   backendFps.value = 0
-
-  toast.info(t('console.videoRestarting'), {
-    description: data.reason === 'device_switch' ? t('console.deviceSwitching') : t('console.configChanging'),
-    duration: 5000,
-  })
 }
 
-async function handleStreamConfigApplied(data: any) {
+async function handleStreamConfigApplied(_data: any) {
   consecutiveErrors = 0
 
   gracePeriodTimeoutId = window.setTimeout(() => {
@@ -882,11 +877,6 @@ async function handleStreamConfigApplied(data: any) {
   }
 
   videoRestarting.value = false
-
-  toast.success(t('console.videoRestarted'), {
-    description: `${data.device} - ${data.resolution[0]}x${data.resolution[1]} @ ${formatFpsValue(data.fps)}fps`,
-    duration: 3000,
-  })
 }
 
 function handleWebRTCReady(data: { codec: string; hardware: boolean; transition_id?: string }) {
@@ -1158,11 +1148,6 @@ function handleStreamModeChanged(data: { mode: string; previous_mode: string })
     return
   }
 
-  toast.info(t('console.streamModeChanged'), {
-    description: t('console.streamModeChangedDesc', { mode: data.mode.toUpperCase() }),
-    duration: 5000,
-  })
-
   if (newMode !== videoMode.value) {
     syncToServerMode(newMode)
   }
@@ -1238,11 +1223,6 @@ async function connectWebRTCOnly(codec: VideoMode = 'h264') {
   try {
     const success = await connectWebRTCSerial('connectWebRTCOnly')
     if (success) {
-      toast.success(t('console.webrtcConnected'), {
-        description: t('console.webrtcConnectedDesc'),
-        duration: 3000,
-      })
-
       // Force video rebind even when the track already exists
       // This fixes missing video after returning to the page
       await rebindWebRTCVideo()
@@ -1338,11 +1318,6 @@ async function switchToWebRTC(codec: VideoMode = 'h264') {
       success = await connectWebRTCSerial('switchToWebRTC')
     }
     if (success) {
-      toast.success(t('console.webrtcConnected'), {
-        description: t('console.webrtcConnectedDesc'),
-        duration: 3000,
-      })
-
       await rebindWebRTCVideo()
 
       videoLoading.value = false
@@ -1570,7 +1545,6 @@ async function handleChangePassword() {
   changingPassword.value = true
   try {
     await authApi.changePassword(currentPassword.value, newPassword.value)
-    toast.success(t('auth.passwordChanged'))
 
     currentPassword.value = ''
     newPassword.value = ''
@@ -1619,7 +1593,6 @@ async function handleReset() {
 async function handleWol(mac: string) {
   try {
     await atxConfigApi.sendWol(mac)
-    toast.success(t('atx.wolSent'))
   } catch (e) {
     toast.error(t('atx.wolFailed'))
   }
@@ -1684,10 +1657,6 @@ function handleKeyDown(e: KeyboardEvent) {
   }
 
   if (!isFullscreen.value && (e.metaKey || e.key === 'Meta')) {
-    toast.info(t('console.metaKeyHint'), {
-      description: t('console.metaKeyHintDesc'),
-      duration: 3000,
-    })
   }
 
   const canonicalKey = keyboardEventToCanonicalKey(e.code, e.key)
@@ -2039,10 +2008,6 @@ function handlePointerLockChange() {
         localCrosshairPos.value = { x: r.width / 2, y: r.height / 2 }
       }
     }
-    toast.info(t('console.pointerLocked'), {
-      description: t('console.pointerLockedDesc'),
-      duration: 3000,
-    })
   }
 }
 
@@ -2207,10 +2172,6 @@ function handleToggleMouseMode() {
   mousePosition.value = { x: 0, y: 0 }
 
   if (mouseMode.value === 'relative') {
-    toast.info(t('console.relativeModeHint'), {
-      description: t('console.relativeModeHintDesc'),
-      duration: 5000,
-    })
   }
 }