diff --git a/src/App.vue b/src/App.vue
index 608b1ec..1b364ec 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -21,7 +21,9 @@
 	import audioManager from "./audioManager";
 	const store = useStore();
 	const {
-		user
+		user,
+		device,
+		online
 	} = storeToRefs(store);
 	const {
 		updateUser,
@@ -68,7 +70,11 @@
 
 	async function emitUpdateOnline() {
 		const data = await getDeviceBatteryAPI();
-		updateOnline(data.online);
+		const wasOnline = Boolean(online.value);
+		const nextOnline = Boolean(data.online);
+		updateOnline(nextOnline);
+		if (!device.value.deviceId || wasOnline === nextOnline) return;
+		audioManager.play(nextOnline ? "设备已连接" : "设备连接已断开");
 	}
 
 	function onDeviceBindInvalid() {
diff --git a/src/audioManager.js b/src/audioManager.js
index 81cc841..1bf8f31 100644
--- a/src/audioManager.js
+++ b/src/audioManager.js
@@ -4,6 +4,10 @@ export const AUDIO_INTERRUPTION_END_EVENT = "audio-interruption-end";
 export const audioFils = {
   tententen: "https://static.shelingxingqiu.com/shootmini/static/audio/tententen.mp3",
   点击按钮: "https://static.shelingxingqiu.com/shootmini/static/audio/%E7%82%B9%E5%87%BB%E6%8C%89%E9%92%AE.mp3",
+  设备连接已断开:
+    "https://static.shelingxingqiu.com/shootmini/static/audio/%E8%AE%BE%E5%A4%87%E8%BF%9E%E6%8E%A5%E5%B7%B2%E6%96%AD%E5%BC%80.MP3",
+  设备已连接:
+    "https://static.shelingxingqiu.com/shootmini/static/audio/%E8%AE%BE%E5%A4%87%E5%B7%B2%E8%BF%9E%E6%8E%A5.MP3",
   "20CM全环靶": "https://static.shelingxingqiu.com/shootmini/static/audio/20CM%E5%85%A8%E7%8E%AF%E9%9D%B6-%E6%97%A0%E6%95%88.mp3",
   "40CM全环靶": "https://static.shelingxingqiu.com/shootmini/static/audio/40CM%E5%85%A8%E7%8E%AF%E9%9D%B6-%E6%97%A0%E6%95%88.mp3",
   // 激光已校准:
@@ -16,6 +20,8 @@ export const audioFils = {
     "https://static.shelingxingqiu.com/attachment/2025-09-17/dcutwrda0amn5kqr4j.mp3",
   距离不足:
     "https://static.shelingxingqiu.com/attachment/2025-11-12/de6hr2faw28t0ianh0.mp3",
+  "未发现靶纸，请瞄准靶纸射箭":
+    "https://static.shelingxingqiu.com/shootmini/static/audio/%E6%9C%AA%E5%8F%91%E7%8E%B0%E9%9D%B6%E7%BA%B8%EF%BC%8C%E8%AF%B7%E7%9E%84%E5%87%86%E9%9D%B6%E7%BA%B8%E5%B0%84%E7%AE%AD.MP3",
   轮到你了:
     "https://static.shelingxingqiu.com/attachment/2025-09-17/dcutzdrn4lxcpv8aqr.mp3",
   第一轮:
@@ -102,6 +108,8 @@ const AUDIO_WARM_CONCURRENCY = 3;
 const AUDIO_WARM_RETRIES = 1;
 const AUDIO_WARM_PRIORITY_KEYS = [
   "点击按钮",
+  "设备连接已断开",
+  "设备已连接",
   "比赛开始",
   "练习开始",
   "练习结束",
@@ -116,6 +124,7 @@ const AUDIO_WARM_PRIORITY_KEYS = [
   "请红方射箭",
   "距离合格",
   "距离不足",
+  "未发现靶纸，请瞄准靶纸射箭",
   "未上靶",
   "X环",
 ];
diff --git a/src/components/ScorePanel2.vue b/src/components/ScorePanel2.vue
index bdd6c04..c12addd 100644
--- a/src/components/ScorePanel2.vue
+++ b/src/components/ScorePanel2.vue
@@ -5,13 +5,19 @@ const props = defineProps({
     default: () => [],
   },
 });
-const getSum = (a, b, c) => {
-  const sum = (Number(a) || 0) + (Number(b) || 0) + (Number(c) || 0);
-  return sum > 0 ? sum + "环" : "-";
+const getSum = (...arrows) => {
+  const recordedArrows = arrows.filter(Boolean);
+  if (!recordedArrows.length) return "-";
+  const sum = recordedArrows.reduce(
+    (total, arrow) => total + (Number(arrow.ring) || 0),
+    0
+  );
+  return `${sum}环`;
 };
 const roundsName = ["第一轮", "第二轮", "第三轮", "第四轮"];
-const getShowText = (arrow = {}) => {
-  return arrow.ring ? (arrow.ringX ? "X" : arrow.ring + "环") : "-";
+const getShowText = (arrow) => {
+  if (!arrow) return "-";
+  return arrow.ringX ? "X" : `${Number(arrow.ring) || 0}环`;
 };
 </script>
 <template>
diff --git a/src/components/ScoreResult.vue b/src/components/ScoreResult.vue
index e0eec08..1198663 100644
--- a/src/components/ScoreResult.vue
+++ b/src/components/ScoreResult.vue
@@ -57,19 +57,22 @@ onMounted(() => {
 });
 
 const getRing = (arrow) => {
+  if (!arrow) return "-";
   if (arrow.ringX) return "X";
-  return arrow.ring ? arrow.ring : "-";
+  return Number(arrow.ring) || 0;
 };
 
 const arrows = computed(() => {
-  const data = new Array(props.total).fill({ ring: 0 });
+  const data = new Array(props.total).fill(null);
   (props.result.details || []).forEach((arrow, index) => {
     data[index] = arrow;
   });
   return data;
 });
 
-const validArrows = computed(() => arrows.value.filter((a) => !!a.ring).length);
+const validArrows = computed(
+  () => arrows.value.filter((a) => Number(a?.ring) > 0).length
+);
 const isMember = computed(() => user.value.vip === true || user.value.sVip === true);
 const openCoachComment = () => {
   if (!isMember.value) return;
diff --git a/src/components/TestDistance.vue b/src/components/TestDistance.vue
index f75de58..385ee5e 100644
--- a/src/components/TestDistance.vue
+++ b/src/components/TestDistance.vue
@@ -51,8 +51,13 @@ onBeforeUnmount(() => {
 async function onReceiveMessage(msg) {
   if (Array.isArray(msg)) return;
   if (msg.type === MESSAGETYPESV2.TestDistance) {
-    distance.value = Number((msg.shootData.distance / 100).toFixed(2));
-    if (distance.value >= 5) audioManager.play("距离合格");
+    const rawDistance = Number(msg.shootData?.distance);
+    distance.value = Number.isFinite(rawDistance)
+      ? Number((rawDistance / 100).toFixed(2))
+      : 0;
+    if (rawDistance === 0) {
+      audioManager.play("未发现靶纸，请瞄准靶纸射箭");
+    } else if (distance.value >= 5) audioManager.play("距离合格");
     else audioManager.play("距离不足");
   }
 }
diff --git a/src/matchWebsocket.js b/src/matchWebsocket.js
index e78f688..dd86531 100644
--- a/src/matchWebsocket.js
+++ b/src/matchWebsocket.js
@@ -349,6 +349,7 @@ function getShootResultAudioKeys(shootData) {
 function getTestDistanceAudioKeys(shootData) {
   const distance = Number(shootData?.distance ?? shootData?.dst);
   if (Number.isNaN(distance)) return [];
+  if (distance === 0) return ["未发现靶纸，请瞄准靶纸射箭"];
   return [distance / 100 >= 5 ? "\u8ddd\u79bb\u5408\u683c" : "\u8ddd\u79bb\u4e0d\u8db3"];
 }
 
diff --git a/src/pages/first-try.vue b/src/pages/first-try.vue
index eef6bb7..4cbb378 100644
--- a/src/pages/first-try.vue
+++ b/src/pages/first-try.vue
@@ -154,7 +154,10 @@ async function onReceiveMessage(msg) {
   } else if (msg.type === MESSAGETYPESV2.BattleEnd) {
     setTimeout(() => onOver(msg), 1500);
   } else if (msg.type === MESSAGETYPESV2.TestDistance && step.value === 3) {
-    if (msg.shootData.distance / 100 >= 5) {
+    const rawDistance = Number(msg.shootData?.distance);
+    if (rawDistance === 0) {
+      audioManager.play("未发现靶纸，请瞄准靶纸射箭");
+    } else if (rawDistance / 100 >= 5) {
       audioManager.play("距离合格");
       btnDisabled.value = false;
       showGuide.value = true;
diff --git a/src/pages/team-battle/components/TestDistance.vue b/src/pages/team-battle/components/TestDistance.vue
index c2b4b4c..4ff422b 100644
--- a/src/pages/team-battle/components/TestDistance.vue
+++ b/src/pages/team-battle/components/TestDistance.vue
@@ -51,8 +51,13 @@ onBeforeUnmount(() => {
 async function onReceiveMessage(msg) {
   if (Array.isArray(msg)) return;
   if (msg.type === MESSAGETYPESV2.TestDistance) {
-    distance.value = Number((msg.shootData.distance / 100).toFixed(2));
-    if (distance.value >= 5) audioManager.play("距离合格");
+    const rawDistance = Number(msg.shootData?.distance);
+    distance.value = Number.isFinite(rawDistance)
+      ? Number((rawDistance / 100).toFixed(2))
+      : 0;
+    if (rawDistance === 0) {
+      audioManager.play("未发现靶纸，请瞄准靶纸射箭");
+    } else if (distance.value >= 5) audioManager.play("距离合格");
     else audioManager.play("距离不足");
   }
 }