diff --git a/apps/admin-web/src/assets/big-screen/celebrate-t1.mp3 b/apps/admin-web/src/assets/big-screen/celebrate-t1.mp3
new file mode 100644
index 0000000..8c7ef92
Binary files /dev/null and b/apps/admin-web/src/assets/big-screen/celebrate-t1.mp3 differ
diff --git a/apps/admin-web/src/assets/big-screen/celebrate-t2.mp3 b/apps/admin-web/src/assets/big-screen/celebrate-t2.mp3
new file mode 100644
index 0000000..d38a9f7
Binary files /dev/null and b/apps/admin-web/src/assets/big-screen/celebrate-t2.mp3 differ
diff --git a/apps/admin-web/src/assets/big-screen/celebrate-t3.mp3 b/apps/admin-web/src/assets/big-screen/celebrate-t3.mp3
new file mode 100644
index 0000000..6fdf981
Binary files /dev/null and b/apps/admin-web/src/assets/big-screen/celebrate-t3.mp3 differ
diff --git a/apps/admin-web/src/pages/BigScreenPage.tsx b/apps/admin-web/src/pages/BigScreenPage.tsx
index d85e78f..bb4214c 100644
--- a/apps/admin-web/src/pages/BigScreenPage.tsx
+++ b/apps/admin-web/src/pages/BigScreenPage.tsx
@@ -1,5 +1,8 @@
 import { useCallback, useEffect, useMemo, useRef, useState, type CSSProperties } from 'react';
 import { request } from '../lib/api';
+import sfxTier1 from '../assets/big-screen/celebrate-t1.mp3';
+import sfxTier2 from '../assets/big-screen/celebrate-t2.mp3';
+import sfxTier3 from '../assets/big-screen/celebrate-t3.mp3';
 
 export type BigScreenOrder = {
   id: string;
@@ -21,6 +24,57 @@ const MIN_SCROLL_ROWS = 10;
 const FX_DURATION_MS = 10_000;
 const WEEKDAYS = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六'];
 
+const CELEBRATE_SFX: Record<AmountTier, string> = {
+  1: sfxTier1,
+  2: sfxTier2,
+  3: sfxTier3,
+};
+
+/** 浏览器自动播放策略：需用户手势后才能出声 */
+let audioUnlocked = false;
+const sharedAudio = typeof Audio !== 'undefined' ? new Audio() : null;
+
+function unlockCelebrateAudio() {
+  if (audioUnlocked || !sharedAudio) return;
+  sharedAudio.muted = true;
+  sharedAudio.src = CELEBRATE_SFX[1];
+  void sharedAudio
+    .play()
+    .then(() => {
+      sharedAudio.pause();
+      sharedAudio.currentTime = 0;
+      sharedAudio.muted = false;
+      audioUnlocked = true;
+    })
+    .catch(() => {
+      /* 等待下次手势 */
+    });
+}
+
+function playCelebrateSfx(tier: AmountTier): () => void {
+  if (!sharedAudio) return () => undefined;
+  try {
+    sharedAudio.pause();
+    sharedAudio.currentTime = 0;
+    sharedAudio.src = CELEBRATE_SFX[tier];
+    sharedAudio.volume = tier === 3 ? 0.85 : tier === 2 ? 0.75 : 0.65;
+    sharedAudio.muted = false;
+    void sharedAudio.play().catch(() => {
+      /* 未解锁时静默失败 */
+    });
+  } catch {
+    /* ignore */
+  }
+  return () => {
+    try {
+      sharedAudio.pause();
+      sharedAudio.currentTime = 0;
+    } catch {
+      /* ignore */
+    }
+  };
+}
+
 function pad(n: number) {
   return String(n).padStart(2, '0');
 }
@@ -184,6 +238,11 @@ function CelebrateFx({ order, onDone }: { order: BigScreenOrder; onDone: () => v
     return () => window.clearTimeout(timer);
   }, [order.id]);
 
+  useEffect(() => {
+    const stop = playCelebrateSfx(tier);
+    return stop;
+  }, [order.id, tier]);
+
   useEffect(() => {
     if (tier !== 3) return;
     const start = performance.now();
@@ -357,6 +416,17 @@ export default function BigScreenPage() {
     return () => clearInterval(id);
   }, [fetchData]);
 
+  useEffect(() => {
+    unlockCelebrateAudio();
+    const unlock = () => unlockCelebrateAudio();
+    window.addEventListener('pointerdown', unlock, { once: true });
+    window.addEventListener('keydown', unlock, { once: true });
+    return () => {
+      window.removeEventListener('pointerdown', unlock);
+      window.removeEventListener('keydown', unlock);
+    };
+  }, []);
+
   useEffect(() => {
     const html = document.documentElement;
     const prevHtml = html.style.overflow;
diff --git a/apps/admin-web/src/vite-env.d.ts b/apps/admin-web/src/vite-env.d.ts
new file mode 100644
index 0000000..5ec1c50
--- /dev/null
+++ b/apps/admin-web/src/vite-env.d.ts
@@ -0,0 +1,6 @@
+/// <reference types="vite/client" />
+
+declare module '*.mp3' {
+  const src: string;
+  export default src;
+}