diff --git a/module_gjc/src/main/java/com/lukouguoji/gjc/dialog/GjcInspectionRejectDialogModel.kt b/module_gjc/src/main/java/com/lukouguoji/gjc/dialog/GjcInspectionRejectDialogModel.kt
new file mode 100644
index 0000000..7ce587d
--- /dev/null
+++ b/module_gjc/src/main/java/com/lukouguoji/gjc/dialog/GjcInspectionRejectDialogModel.kt
@@ -0,0 +1,40 @@
+package com.lukouguoji.gjc.dialog
+
+import android.content.Context
+import androidx.lifecycle.MutableLiveData
+import com.lukouguoji.gjc.R
+import com.lukouguoji.gjc.databinding.DialogGjcInspectionRejectBinding
+import com.lukouguoji.module_base.base.BaseDialogModel
+import com.lukouguoji.module_base.ktx.verifyNullOrEmpty
+
+/**
+ * 国际出港收运检查 - 退回原因对话框
+ */
+class GjcInspectionRejectDialogModel(
+    private val callback: (String) -> Unit  // 回调传递退回原因
+) : BaseDialogModel<DialogGjcInspectionRejectBinding>(DIALOG_TYPE_CENTER) {
+
+    // 退回原因
+    val rejectReason = MutableLiveData("")
+
+    override fun layoutId(): Int {
+        return R.layout.dialog_gjc_inspection_reject
+    }
+
+    override fun onDialogCreated(context: Context) {
+        binding.model = this
+    }
+
+    /**
+     * 保存按钮点击
+     */
+    fun onConfirmClick() {
+        // 验证退回原因
+        if (rejectReason.value.verifyNullOrEmpty("请输入退回原因")) {
+            return
+        }
+
+        dismiss()
+        callback(rejectReason.value!!)
+    }
+}
diff --git a/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcInspectionViewModel.kt b/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcInspectionViewModel.kt
index 209427a..8727a34 100644
--- a/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcInspectionViewModel.kt
+++ b/module_gjc/src/main/java/com/lukouguoji/gjc/viewModel/GjcInspectionViewModel.kt
@@ -5,6 +5,7 @@ import android.content.Intent
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
 import com.lukouguoji.gjc.R
+import com.lukouguoji.gjc.dialog.GjcInspectionRejectDialogModel
 import com.lukouguoji.gjc.holder.GjcInspectionViewHolder
 import com.lukouguoji.module_base.base.BasePageViewModel
 import com.lukouguoji.module_base.bean.GjcInspectionBean
@@ -157,7 +158,7 @@ class GjcInspectionViewModel : BasePageViewModel() {
             return
         }
         getTopActivity().showConfirmDialog("确定要通过选中的 ${filter.size} 条数据吗？") {
-            performAudit(filter, true, "通过")
+            performAudit(filter, true, "通过", "")
         }
     }
 
@@ -167,13 +168,25 @@ class GjcInspectionViewModel : BasePageViewModel() {
     fun auditRejectClick() {
         val list = pageModel.rv!!.commonAdapter()!!.items as List<GjcInspectionBean>
         val filter = list.filter { it.checked.get() }
+
+        // 验证是否选择了数据
         if (filter.isEmpty()) {
             showToast("请选择数据")
             return
         }
-        getTopActivity().showConfirmDialog("确定要退回选中的 ${filter.size} 条数据吗？") {
-            performAudit(filter, false, "退回")
+
+        // 验证只能选择一个单据
+        if (filter.size > 1) {
+            showToast("退回时只能选择一个单据")
+            return
         }
+
+        // 弹出退回原因对话框
+        val dialog = GjcInspectionRejectDialogModel { reason ->
+            // 用户填写完退回原因后，执行退回操作
+            performAudit(filter, false, "退回", reason)
+        }
+        dialog.show()
     }
 
     /**
@@ -181,8 +194,9 @@ class GjcInspectionViewModel : BasePageViewModel() {
      * @param items 选中的数据列表
      * @param isPass true:通过, false:退回
      * @param action 操作名称（用于提示）
+     * @param reason 退回原因（仅退回时使用）
      */
-    private fun performAudit(items: List<GjcInspectionBean>, isPass: Boolean, action: String) {
+    private fun performAudit(items: List<GjcInspectionBean>, isPass: Boolean, action: String, reason: String) {
         // 构建请求参数：数组对象，包含 maWbId、wbNo、prefix、no、reviewStatus（必传）
         // 使用数据自身的 reviewStatus 值
         val requestData = items.map {
@@ -200,8 +214,7 @@ class GjcInspectionViewModel : BasePageViewModel() {
             if (isPass) {
                 NetApply.api.passGjcInspection(requestData)
             } else {
-                // TODO: impl reason dialog
-                NetApply.api.backGjcInspection("test reason", requestData)
+                NetApply.api.backGjcInspection(reason, requestData)
             }
         }) {
             onSuccess = {
diff --git a/module_gjc/src/main/res/layout/activity_int_exp_assemble_start.xml b/module_gjc/src/main/res/layout/activity_int_exp_assemble_start.xml
index 342eacd..a49e7ba 100644
--- a/module_gjc/src/main/res/layout/activity_int_exp_assemble_start.xml
+++ b/module_gjc/src/main/res/layout/activity_int_exp_assemble_start.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
 
     <data>
 
@@ -212,7 +213,8 @@
                         android:id="@+id/rv_waybill_list"
                         android:layout_width="match_parent"
                         android:layout_height="0dp"
-                        android:layout_weight="1" />
+                        android:layout_weight="1"
+                        tools:listitem="@layout/item_assemble_waybill"/>
                 </LinearLayout>
 
                 <!-- ULD信息卡片 -->
diff --git a/module_gjc/src/main/res/layout/dialog_gjc_inspection_reject.xml b/module_gjc/src/main/res/layout/dialog_gjc_inspection_reject.xml
new file mode 100644
index 0000000..77dfb78
--- /dev/null
+++ b/module_gjc/src/main/res/layout/dialog_gjc_inspection_reject.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <data>
+        <import type="com.lukouguoji.module_base.ui.weight.data.layout.DataLayoutType"/>
+
+        <variable
+            name="model"
+            type="com.lukouguoji.gjc.dialog.GjcInspectionRejectDialogModel" />
+
+    </data>
+
+    <LinearLayout
+        android:layout_width="600dp"
+        android:layout_height="wrap_content"
+        android:background="@drawable/bg_dialog_f2_radius_10"
+        android:gravity="center_horizontal"
+        android:orientation="vertical">
+
+        <!-- 标题栏 -->
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:background="@drawable/bg_primary_radius_top_10"
+            android:gravity="center"
+            android:text="是否确认退回？"
+            android:textColor="@color/white"
+            android:textSize="18sp"
+            android:textStyle="bold" />
+
+        <!-- 表单内容 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="30dp"
+            android:layout_marginTop="30dp"
+            android:orientation="vertical">
+
+            <!-- 退回原因（多行输入） -->
+            <com.lukouguoji.module_base.ui.weight.data.layout.PadDataLayoutNew
+                enable="@{true}"
+                inputHeight="@{120}"
+                title='@{"原因"}'
+                titleLength="@{5}"
+                hint='@{"请输入退回原因"}'
+                type="@{DataLayoutType.INPUT}"
+                value='@={model.rejectReason}'
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" />
+
+        </LinearLayout>
+
+        <!-- 底部按钮 -->
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="40dp"
+            android:layout_marginBottom="20dp">
+
+            <TextView
+                style="@style/tv_bottom_btn"
+                android:onClick="@{()->model.dismiss()}"
+                android:text="取消" />
+
+            <TextView
+                style="@style/tv_bottom_btn"
+                android:onClick="@{()->model.onConfirmClick()}"
+                android:text="保存" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+</layout>
diff --git a/module_gjc/src/main/res/layout/item_assemble_waybill.xml b/module_gjc/src/main/res/layout/item_assemble_waybill.xml
index 7f10d58..cbfdb96 100644
--- a/module_gjc/src/main/res/layout/item_assemble_waybill.xml
+++ b/module_gjc/src/main/res/layout/item_assemble_waybill.xml
@@ -21,7 +21,7 @@
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingHorizontal="8dp"
-        android:paddingVertical="12dp">
+        android:paddingVertical="4dp">
 
         <!-- 序号 -->
         <TextView