diff --git a/track-uniapp/src/pages/scan/components/TreeCanvas.vue b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
index c48dd3c..bd0df8e 100644
--- a/track-uniapp/src/pages/scan/components/TreeCanvas.vue
+++ b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
@@ -17,9 +17,6 @@
           :style="{ width: canvasWidth + 'px', height: canvasHeight + 'px' }"
         >
           <view class="canvas-inner">
-            <!-- 连线层 -->
-            <view v-for="line in treeLines" :key="line.key" class="canvas-line" :style="lineStyle(line)"></view>
-
             <!-- 节点卡片层 -->
             <view v-for="node in treeNodes" :key="node.id"
               class="canvas-node" :class="statusColor(node.status)"
@@ -62,7 +59,6 @@ export default {
 
       const CARD_W = 320, CARD_H = 460, GAP_X = 80, GAP_Y = 120;
       const nodes = [];
-      nodes._lines = [];
 
       // 按行组织：每行是一个 { y, tasks: [...] }
       const rows = [];
@@ -80,18 +76,6 @@ export default {
           const node = { ...t, x, y: 0, _rowIdx: rowIdx, _xEnd: x + CARD_W };
           row.tasks.push(node);
           nodes.push(node);
-
-          // 连线到父节点
-          if (t.parent_task_id) {
-            const parent = nodes.find(n => n.id === t.parent_task_id);
-            if (parent) {
-              nodes._lines.push({
-                key: parent.id + '-' + t.id,
-                x1: parent.x + CARD_W / 2, y1: parent.y + CARD_H,
-                x2: node.x + CARD_W / 2, y2: node.y,
-              });
-            }
-          }
         });
 
         // 递归子任务
@@ -122,7 +106,6 @@ export default {
       if (this.product) walk(this.product.task_tree);
       return map;
     },
-    treeLines() { return this.treeNodes._lines || []; },
     canvasWidth() { if (!this.treeNodes.length) return 400; return Math.max(800, Math.max(...this.treeNodes.map(n => n.x)) + 300); },
     canvasHeight() { if (!this.treeNodes.length) return 400; return Math.max(800, Math.max(...this.treeNodes.map(n => n.y)) + 300); }
   },
diff --git a/track-uniapp/src/pages/scan/components/WorkspaceArea.vue b/track-uniapp/src/pages/scan/components/WorkspaceArea.vue
index 57c7c28..0da5ce1 100644
--- a/track-uniapp/src/pages/scan/components/WorkspaceArea.vue
+++ b/track-uniapp/src/pages/scan/components/WorkspaceArea.vue
@@ -130,17 +130,20 @@ export default {
     lockedTask() { return this.focusTasks.find(t => t.id === this.lockedTaskId) || null; },
     branchLabelsMap() {
       const map = {};
-      const walk = (tasks, prefix, idx) => {
+      if (!this.product || !this.product.task_tree) return map;
+      const traverse = (tasks, prefix) => {
         if (!tasks) return;
         tasks.forEach((t, i) => {
-          const label = prefix === '' ? '主分支' : `${prefix}${i + 1}`;
-          map[t.id] = label;
-          if (t.child_tasks && t.child_tasks.length) {
-            walk(t.child_tasks, prefix === '' ? '' : `${label}.`, i);
+          if (prefix === '') {
+            map[t.id] = '主分支';
+          } else {
+            map[t.id] = `分支 ${prefix}${i + 1}`;
           }
+          const nextPrefix = prefix === '' ? `${i + 1}.` : `${prefix}${i + 1}.`;
+          traverse(t.child_tasks, nextPrefix);
         });
       };
-      if (this.product) walk(this.product.task_tree, '', 0);
+      traverse(this.product.task_tree, '');
       return map;
     },
   },