update：优化节奏训练文案

src/pages/training/components/ShootProgress.vue

@@ -223,7 +223,7 @@ const rhythmTitle = computed(() => {
   if (!validRhythmHitReq.value) {
     return `在最后的${validRhythmShootTime.value}秒内射箭`;
   }
-  return `在最后的${validRhythmShootTime.value}秒并命中${validRhythmHitReq.value}环内`;
+  return `在最后的${validRhythmShootTime.value}秒射箭并命中${validRhythmHitReq.value}环内`;
 });
 
 const displayName = computed(() => {

src/pages/training/practise-one.vue

@@ -494,21 +494,17 @@ const trainingCopy = computed(() => {
 
   if (trainingType.value === "rhythm") {
     const totalArrows = getPositiveInteger(rhythmTargetArrows.value) || total.value;
-    // 总箭数与达标箭数分别展示，合格进度优先使用服务端快照。
+    // 节奏训练进度由总箭数减剩余箭数计算，qualifiedArrows 仅用于稳定训练。
     const targetArrows =
       getPositiveInteger(practiceInfo.value.targetArrows) ||
       getPositiveInteger(trainingParams.value.totalReq) || totalArrows;
-    const arrowsLeft = Math.min(
+    const completedArrows = Math.min(
       totalArrows,
       Math.max(
         0,
-        getPracticeNumber(practiceInfo.value.arrowsLeft, totalArrows)
+        totalArrows - getPracticeNumber(practiceInfo.value.arrowsLeft, totalArrows)
       )
     );
-    const completedArrows = Math.max(
-      0,
-      getPracticeNumber(practiceInfo.value.qualifiedArrows, totalArrows - arrowsLeft)
-    );
     const hitReq = rhythmHitReq.value;
 
     return {
@@ -735,6 +731,24 @@ const syncPracticeInfo = (message = {}) => {
     return result;
   }, {});
 
+  const isRhythmSnapshot =
+    messageTrainingType === "rhythm" &&
+    (message.type === undefined ||
+      [
+        MESSAGETYPESV2.BattleStart,
+        MESSAGETYPESV2.ShootResult,
+        MESSAGETYPESV2.BattleEnd,
+      ].includes(message.type));
+
+  if (isRhythmSnapshot) {
+    // 完整快照中 proto3 会省略 0；最后一箭及重连时不能保留旧剩余数。
+    for (const field of ["arrowsLeft", "qualifiedArrows"]) {
+      if (!Object.prototype.hasOwnProperty.call(nextInfo, field)) {
+        nextInfo[field] = 0;
+      }
+    }
+  }
+
   const isStabilityEnergySnapshot =
     messageTrainingType === "stability" &&
     (Object.prototype.hasOwnProperty.call(message, "currentEnergy") ||