diff --git a/modules/EcommerceFinance/Repositories/AfterSalesCostRowRepository.php b/modules/EcommerceFinance/Repositories/AfterSalesCostRowRepository.php
index 57fa7358..2a28da84 100644
--- a/modules/EcommerceFinance/Repositories/AfterSalesCostRowRepository.php
+++ b/modules/EcommerceFinance/Repositories/AfterSalesCostRowRepository.php
@@ -43,7 +43,30 @@ class AfterSalesCostRowRepository
             return false;
         }
 
-        return $this->filtered($filters)->limit(1)->exists();
+        // 指定单号时，导入表里命中该单就完整（同单的所有明细行都在导入数据里）。
+        if (trim((string) ($filters['order_no'] ?? '')) !== '') {
+            return $this->filtered($filters)->limit(1)->exists();
+        }
+
+        $from = trim((string) ($filters['from'] ?? ''));
+        $to = trim((string) ($filters['to'] ?? ''));
+
+        // 不限日期时无法保证覆盖范围，回退镜像，避免把导入数据当成全量。
+        if ($from === '' || $to === '') {
+            return false;
+        }
+
+        $range = $this->filtered(['shop_names' => $filters['shop_names'] ?? []])
+            ->selectRaw('MIN(order_time) as min_time, MAX(order_time) as max_time')
+            ->first();
+
+        if (! $range || $range->min_time === null) {
+            return false;
+        }
+
+        // 只有导入范围完整覆盖所选日期时才使用导入数据，避免跨月时数据不全。
+        return substr((string) $range->min_time, 0, 10) <= $from
+            && substr((string) $range->max_time, 0, 10) >= $to;
     }
 
     /**
diff --git a/tests/Feature/Business/AfterSalesCostImportTest.php b/tests/Feature/Business/AfterSalesCostImportTest.php
index 6378ad3c..97a26d58 100644
--- a/tests/Feature/Business/AfterSalesCostImportTest.php
+++ b/tests/Feature/Business/AfterSalesCostImportTest.php
@@ -27,6 +27,26 @@ class AfterSalesCostImportTest extends FeatureTestCase
             'combine_type' => '组合单品',
         ]));
 
+        DB::table('ops_after_sales_cost_rows')->insert(AfterSalesCostRowRepository::toRecord([
+            'shop_name' => '天猫-亿家达旗舰店',
+            'online_order_no' => '5120748758529014000',
+            'product_code' => 'SJ038999N1410V01',
+            'order_time' => '2026-06-01 00:00:00',
+            'product_quantity' => 1,
+            'product_amount' => 10,
+            'product_cost' => 5,
+        ]));
+
+        DB::table('ops_after_sales_cost_rows')->insert(AfterSalesCostRowRepository::toRecord([
+            'shop_name' => '天猫-亿家达旗舰店',
+            'online_order_no' => '5120748758529014001',
+            'product_code' => 'SJ038998N1410V01',
+            'order_time' => '2026-06-30 23:00:00',
+            'product_quantity' => 1,
+            'product_amount' => 10,
+            'product_cost' => 5,
+        ]));
+
         $result = app(OrderDataPageData::class)->afterSalesRows([
             'from' => '2026-06-01',
             'to' => '2026-06-30',
@@ -36,9 +56,11 @@ class AfterSalesCostImportTest extends FeatureTestCase
         ], 1, 20);
 
         $this->assertSame('imported', $result['status']['X-Caiwu-Data-Status']);
-        $this->assertCount(1, $result['rows']);
-        $this->assertSame('SJ038020N1410V02', $result['rows'][0]['product_code']);
-        $this->assertEquals(110.53, $result['rows'][0]['product_cost']);
+        $this->assertCount(3, $result['rows']);
+
+        $target = collect($result['rows'])->firstWhere('product_code', 'SJ038020N1410V02');
+        $this->assertNotNull($target);
+        $this->assertEquals(110.53, $target['product_cost']);
     }
 
     public function test_import_command_reads_the_jst_export_file(): void