diff --git a/track-uniapp/src/pages/scan/detail.vue b/track-uniapp/src/pages/scan/detail.vue
index 4640b66..c7087f9 100644
--- a/track-uniapp/src/pages/scan/detail.vue
+++ b/track-uniapp/src/pages/scan/detail.vue
@@ -103,6 +103,10 @@
           @tap="handleTaskAction({ task: activeTask, type: 'receive' })">
           ✅ 接收任务
         </button>
+        <button v-if="activeTask.status === 'PENDING'" class="footer-btn footer-reject"
+          @tap="handleTaskAction({ task: activeTask, type: 'reject' })">
+          ❌ 驳回任务
+        </button>
       </view>
     </template>
 
@@ -235,50 +239,69 @@
             <button class="btn-danger" :disabled="actionLoading || !rejectReason.trim()" @tap="doReject">确认驳回</button>
           </view>
         </template>
-        <!-- 转交 -->
+        <!-- 转交（支持多分支裂变） -->
         <template v-if="actionPopup.type === 'transfer'">
-          <text class="popup-title">完工转交</text>
+          <text class="popup-title">完工转交 · 裂变派发</text>
 
-          <!-- 工序选择 (Picker) -->
-          <view class="form-item">
-            <text class="form-label">下一道工序 <text class="required">*</text></text>
-            <picker mode="selector" :range="processOptions" @change="onProcessChange">
-              <view class="picker-value">
-                <text :class="transferForm.next_task_name ? '' : 'picker-placeholder'">
-                  {{ transferForm.next_task_name || '请选择下一道工序' }}
-                </text>
-                <text class="picker-arrow">▾</text>
-              </view>
-            </picker>
+          <!-- 分支列表 -->
+          <view v-for="(branch, idx) in transferForm.branches" :key="idx" class="branch-item">
+            <view class="branch-header">
+              <text class="branch-label">分支 {{ idx + 1 }}</text>
+              <text v-if="transferForm.branches.length > 1" class="branch-del"
+                @tap="removeBranch(idx)">🗑️ 删除</text>
+            </view>
+
+            <!-- 工序选择 -->
+            <view class="form-item">
+              <text class="form-label">工序 <text class="required">*</text></text>
+              <picker mode="selector" :range="processOptions" @change="(e) => onBranchProcessChange(idx, e)">
+                <view class="picker-value">
+                  <text :class="branch.task_name ? '' : 'picker-placeholder'">
+                    {{ branch.task_name || '请选择工序' }}
+                  </text>
+                  <text class="picker-arrow">▾</text>
+                </view>
+              </picker>
+            </view>
+
+            <!-- 接收人（入库分支不需要） -->
+            <view v-if="!isBranchWarehouse(idx)" class="form-item">
+              <text class="form-label">接收人 <text class="required">*</text></text>
+              <picker mode="selector" :range="userOptions" range-key="name" @change="(e) => onBranchUserChange(idx, e)">
+                <view class="picker-value">
+                  <text :class="branchUserName(idx) ? '' : 'picker-placeholder'">
+                    {{ branchUserName(idx) || '请选择接收人' }}
+                  </text>
+                  <text class="picker-arrow">▾</text>
+                </view>
+              </picker>
+            </view>
+
+            <view v-if="isBranchWarehouse(idx)" class="warehouse-hint">
+              📦 入库分支 — 直接归档，无需指定接收人
+            </view>
           </view>
 
-          <!-- 接收人选择（仅非入库时显示） -->
-          <view v-if="!isWarehouse" class="form-item">
-            <text class="form-label">接收人 <text class="required">*</text></text>
-            <picker mode="selector" :range="userOptions" range-key="name" @change="onUserChange">
-              <view class="picker-value">
-                <text :class="selectedUserName ? '' : 'picker-placeholder'">
-                  {{ selectedUserName || '请选择接收人' }}
-                </text>
-                <text class="picker-arrow">▾</text>
-              </view>
-            </picker>
+          <!-- ➕ 添加分支 -->
+          <button class="btn-add-branch" @tap="addBranch">➕ 添加并行分支</button>
+
+          <!-- 备注 -->
+          <input v-model="transferForm.note" class="popup-input" placeholder="交接备注（选填）" style="margin-top:12px;" />
+
+          <!-- 预览 -->
+          <view v-if="transferForm.branches.some(b => b.task_name)" class="preview-hint">
+            将创建 {{ transferForm.branches.length }} 个并行任务：
+            <text v-for="(b, i) in transferForm.branches" :key="i" style="display:block;margin-top:2px;">
+              {{ i + 1 }}. {{ b.task_name || '—' }} → {{ branchUserName(i) || (isBranchWarehouse(i) ? '仓库' : '未选') }}
+            </text>
           </view>
 
-          <!-- 入库提示 -->
-          <view v-if="isWarehouse" class="warehouse-hint">
-            📦 该任务将直接入库，任务状态变为「已入库」
-          </view>
-
-          <input v-model="transferForm.note" class="popup-input" placeholder="交接备注（选填）" />
-
-          <view v-if="transferForm.next_task_name" class="preview-hint">
-            {{ isWarehouse ? '产品将入库并从个人待办中移除' : '将创建 1 个「' + transferForm.next_task_name + '」任务指派给 ' + (selectedUserName || '—') }}
-          </view>
           <view class="popup-btns">
             <button class="btn-cancel" @tap="closeActionPopup">取消</button>
-            <button class="btn-primary" :disabled="actionLoading || !transferForm.next_task_name || (!isWarehouse && !transferForm.assignees.length)" @tap="doTransfer">
-              {{ isWarehouse ? '📦 确认入库' : '确认转交' }}
+            <button class="btn-primary"
+              :disabled="actionLoading || !transferForm.branches.some(b => b.task_name) || !canSubmitTransfer"
+              @tap="doTransfer">
+              {{ actionLoading ? '提交中...' : '确认转交 (' + transferForm.branches.length + '分支)' }}
             </button>
           </view>
         </template>
@@ -334,7 +357,7 @@ export default {
       actionPopup: { visible: false, type: "", task: null },
       actionLoading: false,
       rejectReason: "",
-      transferForm: { next_task_name: "", assignees: [], selectedUserId: "", warehouse: false, note: "" },
+      transferForm: { branches: [{ task_name: "", assignee_id: "" }], note: "" },
     };
   },
   computed: {
@@ -346,12 +369,12 @@ export default {
       if (!this.currentUser) return true;
       return this.currentUser.username === this.recordPopup.task.assignee_id;
     },
-    selectedUserName() {
-      const u = this.userOptions.find(u => u.id === this.transferForm.selectedUserId);
-      return u ? u.name : "";
-    },
-    isWarehouse() {
-      return this.transferForm.next_task_name === "🏭 入库 (virtual_warehouse)";
+    canSubmitTransfer() {
+      return this.transferForm.branches.every(b => {
+        if (!b.task_name) return false;
+        if (b.task_name === "🏭 入库 (virtual_warehouse)") return true;
+        return !!b.assignee_id;
+      });
     },
     activeTask() {
       // 查找树中第一个 WIP 或 PENDING 任务作为底部 Footer 的操作目标
@@ -658,7 +681,7 @@ export default {
 
       this.actionPopup = { visible: true, type, task };
       this.rejectReason = "";
-      this.transferForm = { next_task_name: "", assignees: [], selectedUserId: "", warehouse: false, note: "" };
+      this.transferForm = { branches: [{ task_name: "", assignee_id: "" }], note: "" };
     },
     handleViewRecords(task) {
       uni.navigateTo({ url: `/pages/scan/records?taskId=${task.id}` });
@@ -683,28 +706,46 @@ export default {
         this.doQuery(this.product.serial_number);
       } catch {} finally { this.actionLoading = false; }
     },
-    onProcessChange(e) {
-      this.transferForm.next_task_name = this.processOptions[e.detail.value];
-    },
-    onUserChange(e) {
-      const user = this.userOptions[e.detail.value];
-      if (user) {
-        this.transferForm.selectedUserId = user.id;
-        this.transferForm.assignees = [user.id];
+    // ---- 多分支操作 ----
+    addBranch() {
+      if (this.transferForm.branches.length >= 5) {
+        uni.showToast({ title: "最多 5 个并行分支", icon: "none" }); return;
       }
+      this.transferForm.branches.push({ task_name: "", assignee_id: "" });
+    },
+    removeBranch(idx) {
+      if (this.transferForm.branches.length <= 1) return;
+      this.transferForm.branches.splice(idx, 1);
+    },
+    onBranchProcessChange(idx, e) {
+      this.transferForm.branches[idx].task_name = this.processOptions[e.detail.value];
+      // 切换工序时清空接收人
+      this.transferForm.branches[idx].assignee_id = "";
+    },
+    onBranchUserChange(idx, e) {
+      const user = this.userOptions[e.detail.value];
+      if (user) this.transferForm.branches[idx].assignee_id = user.id;
+    },
+    isBranchWarehouse(idx) {
+      return this.transferForm.branches[idx].task_name === "🏭 入库 (virtual_warehouse)";
+    },
+    branchUserName(idx) {
+      const u = this.userOptions.find(u => u.id === this.transferForm.branches[idx].assignee_id);
+      return u ? u.name : "";
     },
     async doTransfer() {
       this.actionLoading = true;
-      const finalAssignees = this.isWarehouse
-        ? ["virtual_warehouse"]
-        : [...this.transferForm.assignees];
+      const branches = this.transferForm.branches.filter(b => b.task_name);
       try {
         await post(`/tasks/${this.actionPopup.task.id}/transfer`, {
-          next_assignees: finalAssignees,
-          next_task_name: this.transferForm.next_task_name.trim(),
+          next_tasks: branches.map(b => ({
+            task_name: b.task_name,
+            assignees: b.task_name === "🏭 入库 (virtual_warehouse)"
+              ? ["virtual_warehouse"] : [b.assignee_id],
+          })),
           note: this.transferForm.note.trim() || undefined,
         });
-        uni.showToast({ title: this.isWarehouse ? "已入库" : "转交成功", icon: "success" });
+        uni.showToast({ title: `已派发 ${branches.length} 个分支`, icon: "success" });
         this.closeActionPopup();
         this.doQuery(this.product.serial_number);
       } catch {} finally { this.actionLoading = false; }
@@ -793,6 +834,14 @@ export default {
 .warehouse-hint { font-size: 13px; background: #ede9fe; color: #7c3aed; padding: 10px 14px; border-radius: 10px; margin: 8px 0; text-align: center; }
 .preview-hint { font-size: 12px; background: #f0fdf4; color: #16a34a; padding: 8px 10px; border-radius: 8px; margin: 6px 0; }
 
+/* 多分支裂变 */
+.branch-item { background: #f9fafb; border: 1px solid #e5e7eb; border-radius: 10px; padding: 12px; margin-bottom: 10px; }
+.branch-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
+.branch-label { font-size: 13px; font-weight: 700; color: #374151; }
+.branch-del { font-size: 12px; color: #ef4444; font-weight: 600; padding: 2px 8px; }
+.btn-add-branch { width: 100%; height: 40px; border: 2px dashed #93c5fd; border-radius: 10px; background: #eff6ff; color: #2563eb; font-size: 14px; font-weight: 700; line-height: 40px; margin: 4px 0; }
+.btn-add-branch::after { border: none; }
+
 /* Picker & 表单 */
 .field-label { font-size: 14px; font-weight: 600; color: #374151; margin-top: 10px; margin-bottom: 4px; }
 .required { color: #ef4444; }
@@ -826,6 +875,7 @@ export default {
 .footer-transfer { background: #dcfce7; color: #16a34a; }
 .footer-record { background: #eff6ff; color: #2563eb; }
 .footer-receive { background: #dbeafe; color: #1d4ed8; }
+.footer-reject { background: #fce4ec; color: #dc2626; }
 
 /* Picker 选择器 */
 .form-item { margin: 10px 0; }