diff --git a/src/components/HeaderProgress.vue b/src/components/HeaderProgress.vue
index bad1920..887afc9 100644
--- a/src/components/HeaderProgress.vue
+++ b/src/components/HeaderProgress.vue
@@ -52,7 +52,8 @@ async function onReceiveMessage(message) {
   const { type, mode, current, shootData } = message;
   if (type === MESSAGETYPESV2.BattleStart) {
     melee.value = Boolean(mode > 3);
-    totalShot.value = mode === 1 ? 3 : 2;
+    // 优先使用后端返回的 shootNumber，降级则根据 mode 推算
+    totalShot.value = message.shootNumber ?? (mode === 1 ? 3 : 2);
     currentRoundEnded.value = true;
     audioManager.play("比赛开始");
   } else if (type === MESSAGETYPESV2.BattleEnd) {
diff --git a/src/pages/team-battle.vue b/src/pages/team-battle.vue
index 3f5e7ea..6c3a3ff 100644
--- a/src/pages/team-battle.vue
+++ b/src/pages/team-battle.vue
@@ -42,6 +42,8 @@ const matchStatus = ref(undefined);
 const updateRemainSecond = ref(0);
 /** 对战来源类型（1=好友约战，2=匹配对战），用于结算页分流 */
 const battleWay = ref(0);
+/** 上一次处理的 ToSomeoneShoot 关键字段，用于去重过滤重复消息 */
+const lastToSomeoneShootKey = ref("");
 
 const recoverData = (battleInfo, {force = false, arrowOnly = false} = {}) => {
   try {
@@ -183,6 +185,11 @@ async function onReceiveMessage(msg) {
   if (msg.type === MESSAGETYPESV2.BattleStart) {
     start.value = true;
   } else if (msg.type === MESSAGETYPESV2.ToSomeoneShoot) {
+    // 去重防护：如果 playerId + round 与上一次处理完全相同，则忽略重复推送的消息
+    // （防止 onBeforeUnmount 未及时 off 和页面重创建导致同一事件被处理多次）
+    const key = `${msg?.current?.playerId}-${msg?.current?.round}`;
+    if (key === lastToSomeoneShootKey.value) return;
+    lastToSomeoneShootKey.value = key;
     recoverData(msg);
   } else if (msg.type === MESSAGETYPESV2.ShootResult) {
     uni.$emit("update-remain", {stop: true})
@@ -228,6 +235,8 @@ onBeforeUnmount(() => {
   uni.setKeepScreenOn({
     keepScreenOn: false,
   });
+  // 注销所有第三方事件盓听，防止页面重创建时监听叠加导致消息重复处理
+  uni.$off("socket-inbox", onReceiveMessage);
   uni.$off("audioEnded", onAudioEnded);
   audioManager.stopAll();
 });
@@ -242,6 +251,10 @@ onShow(async () => {
         url: `/pages/friend-battle-result?battleId=${result.matchId}`,
       });
     } else {
+      // shootNumber 来自后端，恢复状态时同步 totalShot，防止 BattleStart 不重新推送导致显示错误
+      if (result.shootNumber) {
+        uni.$emit("update-shot", { currentShot: 0, totalShot: result.shootNumber });
+      }
       recoverData(result, {force: true});
     }
   }