diff --git a/app/common/service/ApprovalRecordsService.php b/app/common/service/ApprovalRecordsService.php
index f0e33b1..6af6a56 100644
--- a/app/common/service/ApprovalRecordsService.php
+++ b/app/common/service/ApprovalRecordsService.php
@@ -4,6 +4,7 @@ namespace app\common\service;
 
 use app\common\model\User;
 use app\common\model\UserGroupMembers;
+use support\Db;
 use app\common\validate\ApprovalRecordsValidate;
 use app\common\traits\crud\CrudServiceTrait;
 use app\common\model\ApprovalRecords;
@@ -118,6 +119,31 @@ class ApprovalRecordsService
                     $config['where']['status'] = ['!=', 'pending'];
                 }
 
+                // 业务筛选：pi_no 精确到PI号；keyword 匹配 单号/PI号（历史页原有搜索框此前后端未实现）
+                // 两个条件同时传时取交集
+                $bizIdFilter = null;
+                if (!empty($p['pi_no'])) {
+                    $ids = Db::table('stock_orders')
+                        ->where('pi_no', 'like', '%' . trim((string)$p['pi_no']) . '%')
+                        ->pluck('id')->toArray();
+                    $bizIdFilter = $ids ?: [0];
+                }
+                if (!empty($p['keyword'])) {
+                    $kw = '%' . trim((string)$p['keyword']) . '%';
+                    $ids = Db::table('stock_orders')
+                        ->where(function ($q) use ($kw) {
+                            $q->where('order_no', 'like', $kw)
+                                ->orWhere('pi_no', 'like', $kw)
+                                ->orWhere('customer_snapshot', 'like', $kw);
+                        })
+                        ->pluck('id')->toArray();
+                    $ids = $ids ?: [0];
+                    $bizIdFilter = $bizIdFilter === null ? $ids : array_values(array_intersect($bizIdFilter, $ids));
+                }
+                if ($bizIdFilter !== null) {
+                    $config['where']['instance.biz_id'] = ['in', $bizIdFilter];
+                }
+
                 $config['order']['id'] = 'desc';
 
                 $config['with'] = [