diff --git a/addons/shopro/library/ccblife/CcbPaymentService.php b/addons/shopro/library/ccblife/CcbPaymentService.php
index da23cad..2a73d53 100644
--- a/addons/shopro/library/ccblife/CcbPaymentService.php
+++ b/addons/shopro/library/ccblife/CcbPaymentService.php
@@ -194,13 +194,14 @@ class CcbPaymentService
                 $macParams['MINPOINTLIMIT'] = $this->config['min_point_limit'];
             }
 
-            // 特殊字段（中石化专用，第33-34位）
-            if (!empty($this->config['identity_code'])) {
-                $macParams['IDENTITYCODE'] = $this->config['identity_code'];
-            }
-            if (!empty($this->config['notify_url'])) {
-                $macParams['NOTIFY_URL'] = $this->config['notify_url'];
-            }
+            // ⚠️ 特殊字段（仅中石化服务方使用，其他服务方禁止添加，否则MAC验证失败）
+            // Java代码中这两个字段已被注释，说明不参与正常流程的MAC签名
+            // if (!empty($this->config['identity_code'])) {
+            //     $macParams['IDENTITYCODE'] = $this->config['identity_code'];
+            // }
+            // if (!empty($this->config['notify_url'])) {
+            //     $macParams['NOTIFY_URL'] = $this->config['notify_url'];
+            // }
 
             // 数字人民币商户类型（第35-38位）
             if (!empty($this->config['dcep_mct_type'])) {
@@ -336,8 +337,8 @@ class CcbPaymentService
                 'status' => true,
                 'message' => '支付串生成成功',
                 'data' => [
-//                    'payment_string' => $finalPaymentString,
-                    'payment_string' => 'MERCHANTID=105003953998037&POSID=068295530&BRANCHID=340650000&ORDERID=PAY20251027163247893442&USER_ORDERID=202504324734011387001000&PAYMENT=2999.00&CURCODE=01&TXCODE=520100&REMARK1=&REMARK2=YS44000009001853&TYPE=1&GATEWAY=0&CLIENTIP=&REGINFO=&PROINFO=Apple%u0020Watch%u0020Series%u00207%u0020%u667A%u80FD%u624B%u8868GPS%u6B3E41%u0020%u6BEB%u7C73%u661F%u5149%u8272%u94DD%u91D1%u5C5E%u8868%u58F3%u661F%u5149%u8272%u8FD0%u52A8%u578B%u8868%u5E26&REFERER=&THIRDAPPINFO=comccbpay1234567890cloudmerchant&TIMEOUT=20251027172350&PLATFORMPUB=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC6yZj5rUHz+plEbTMSxF6iRy5XTd82LpKGkcRtJcNiHXAvOh/QvW6xc+GJSfvfM9pnRCyWkFrvFViOGnLUrjyoB0wa/TEqWootEEKXSDacFyQ/QIJSK0+zMYTC2Md6gGA4YylJQuYZ1lWDoOLBt9pP93Qnm0R2PEQ5a11HxwdvlQIDAQAB',
+                    'payment_string' => $finalPaymentString,
+//                    'payment_string' => 'MERCHANTID=105003953998037&POSID=068295530&BRANCHID=340650000&ORDERID=PAY20251027163247893442&USER_ORDERID=202504324734011387001000&PAYMENT=2999.00&CURCODE=01&TXCODE=520100&REMARK1=&REMARK2=YS44000009001853&TYPE=1&GATEWAY=0&CLIENTIP=&REGINFO=&PROINFO=Apple%u0020Watch%u0020Series%u00207%u0020%u667A%u80FD%u624B%u8868GPS%u6B3E41%u0020%u6BEB%u7C73%u661F%u5149%u8272%u94DD%u91D1%u5C5E%u8868%u58F3%u661F%u5149%u8272%u8FD0%u52A8%u578B%u8868%u5E26&REFERER=&THIRDAPPINFO=comccbpay1234567890cloudmerchant&TIMEOUT=20251027172350&PLATFORMPUB=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC6yZj5rUHz+plEbTMSxF6iRy5XTd82LpKGkcRtJcNiHXAvOh/QvW6xc+GJSfvfM9pnRCyWkFrvFViOGnLUrjyoB0wa/TEqWootEEKXSDacFyQ/QIJSK0+zMYTC2Md6gGA4YylJQuYZ1lWDoOLBt9pP93Qnm0R2PEQ5a11HxwdvlQIDAQAB',
                     'mac' => $mac,
                     'order_sn' => $order['order_sn'],
                     'pay_flow_id' => $payFlowId,