修改

client/src/views/Analytics/Work/index.vue

@@ -729,6 +729,13 @@ function formatDurationSeconds(secLike: any): string {
   return `${s}秒`;
 }
 
+/** 平均观看时长：保留 2 位小数，不取整 */
+function formatAvgWatchDurationSeconds(secLike: any): string {
+  const s = Math.max(0, parseFloat(String(secLike ?? '0')) || 0);
+  if (s >= 60) return `${Math.floor(s / 60)}分${(s % 60).toFixed(2)}秒`;
+  return `${s.toFixed(2)}秒`;
+}
+
 function formatRate(rateLike: any): string {
   const raw = String(rateLike ?? '0').trim();
   if (!raw) return '0%';
@@ -764,7 +771,7 @@ const xhsMetricCards = computed<MetricCardConfig[]>(() => {
     { key: 'collectCount' as const, label: '收藏量', value: formatNumber(d.collectCount || selectedWork.value?.collectsCount || 0) },
     { key: 'shareCount' as const, label: '分享量', value: formatNumber(d.shareCount || selectedWork.value?.sharesCount || 0) },
     { key: 'coverClickRate' as const, label: '封面点击率', value: formatRate(d.coverClickRate) },
-    { key: 'avgWatchDuration' as const, label: '平均观看时长', value: formatDurationSeconds(d.avgWatchDuration) },
+    { key: 'avgWatchDuration' as const, label: '平均观看时长', value: formatAvgWatchDurationSeconds(d.avgWatchDuration) },
     { key: 'completionRate' as const, label: '完播率', value: formatRate(d.completionRate) },
     { key: 'twoSecondExitRate' as const, label: '2s退出率', value: formatRate(d.twoSecondExitRate) },
     { key: 'fansIncrease' as const, label: '涨粉量', value: formatNumber(d.fansIncrease || 0) },
@@ -782,7 +789,7 @@ const douyinMetricCards = computed<MetricCardConfig[]>(() => {
     { key: 'collectCount', label: '收藏量', value: formatNumber(d.collectCount || base?.collectsCount || 0) },
     { key: 'shareCount', label: '分享量', value: formatNumber(d.shareCount || base?.sharesCount || 0) },
     { key: 'fansIncrease', label: '涨粉量', value: formatNumber(d.fansIncrease || 0) },
-    { key: 'avgWatchDuration', label: '平均观看时长', value: formatDurationSeconds(d.avgWatchDuration) },
+    { label: '平均观看时长', value: formatAvgWatchDurationSeconds(d.avgWatchDuration) },
     { key: 'completionRate', label: '完播率', value: formatRate(d.completionRate) },
     { key: 'twoSecondExitRate', label: '2s退出率', value: formatRate(d.twoSecondExitRate) },
     // 5s 完播率仅为昨日快照，不参与趋势联动