diff --git a/track-uniapp/src/pages/scan/components/FlowCard.vue b/track-uniapp/src/pages/scan/components/FlowCard.vue
index a1492cb..12f035e 100644
--- a/track-uniapp/src/pages/scan/components/FlowCard.vue
+++ b/track-uniapp/src/pages/scan/components/FlowCard.vue
@@ -12,10 +12,10 @@
       <text v-if="isWarehouseTask" class="fc-warehouse-in">📥 转入在库: {{ formatUserName(node.assignee_id) }}</text>
       <text v-else class="fc-assignee">👤 {{ formatUserName(node.assignee_id) || '未分配' }}</text>
     </view>
-    <view class="fc-bottom">
-      <text class="fc-time">⏰ {{ fmtDate(node.created_at) }}{{ node.completed_at ? '→' + fmtDate(node.completed_at) : '→至今' }}</text>
-      <text v-if="node.records && node.records.length" class="fc-records" @tap.stop="$emit('viewRecords', node)">📋{{ node.records.length }}条 ›</text>
-    </view>
+    <!-- 时间独占一行 -->
+    <text class="fc-time">⏰ {{ fmtDate(node.created_at) }}{{ node.completed_at ? '→' + fmtDate(node.completed_at) : '→至今' }}</text>
+    <!-- 操作日志：时间下方独立一行，靠右对齐 -->
+    <text v-if="node.records && node.records.length" class="fc-records" @tap.stop="$emit('viewRecords', node)">📋{{ node.records.length }}条 ›</text>
   </view>
 </template>
 
@@ -106,7 +106,8 @@ export default {
 .fc-meta { margin-top: 4px; font-size: 11px; }
 .fc-assignee { color: #4b5563; }
 .fc-warehouse-in { color: #059669; font-weight: 700; }
-.fc-bottom { display: flex; align-items: center; justify-content: space-between; gap: 4px; margin-top: 6px; }
-.fc-time { font-size: 10px; color: #9ca3af; }
-.fc-records { font-size: 10px; color: #2563eb; font-weight: 600; }
+/* 时间独占一行 */
+.fc-time { display: block; font-size: 10px; color: #9ca3af; margin-top: 6px; }
+/* 操作日志：独立一行靠右对齐 */
+.fc-records { display: block; text-align: right; margin-top: 4px; font-size: 11px; color: #2563eb; font-weight: 600; }
 </style>
diff --git a/track-uniapp/src/pages/scan/components/TreeCanvas.vue b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
index b8b56eb..a7e0244 100644
--- a/track-uniapp/src/pages/scan/components/TreeCanvas.vue
+++ b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
@@ -18,9 +18,15 @@
     <scroll-view v-else scroll-x class="tree-scroll" :style="{ height: scrollHeight + 'px' }">
       <view class="tree-canvas" :style="{ width: canvasWidth + 'px' }">
         <!-- 每条主线一个 Row：[左翼] - [中央主线卡片] - [右翼] -->
-        <view v-for="mainTask in allMains" :key="mainTask.id" class="flow-row">
-          <!-- 中央主干道垂直线（绝对定位，穿透整行） -->
-          <view class="flow-vline" />
+        <view v-for="(mainTask, idx) in allMains" :key="mainTask.id" class="flow-row">
+          <!-- 中央主干道垂直线：首行从卡片中间起、末行到卡片中间止，避免冒出/多截 -->
+          <view
+            class="flow-vline"
+            :style="{
+              top: idx === 0 ? '50%' : '0',
+              bottom: idx === allMains.length - 1 ? '50%' : '0'
+            }"
+          />
 
           <!-- 左翼：奇数分支（向下/左展开） -->
           <view class="flow-side flow-left">