diff --git a/includes/blocks/class-yoone-blocks-moneris.php b/includes/blocks/class-yoone-blocks-moneris.php
index 0c0bd18..66c0c9b 100644
--- a/includes/blocks/class-yoone-blocks-moneris.php
+++ b/includes/blocks/class-yoone-blocks-moneris.php
@@ -42,7 +42,10 @@ function yoone_moneris_store_payment_data($order, $result, $request) {
 
 // Only declare the Blocks payment method class when the Blocks base type exists to prevent type resolution issues.
 if (class_exists('Automattic\WooCommerce\Blocks\Payments\PaymentMethodType') && ! class_exists('Yoone_Moneris_Blocks_Payment_Method')) {
-    class Yoone_Moneris_Blocks_Payment_Method extends Automattic\WooCommerce\Blocks\Payments\PaymentMethodType {
+    /**
+     * 使用 use 导入基类，避免 IDE 报 Undefined type
+     */
+class Yoone_Moneris_Blocks_Payment_Method extends Automattic\WooCommerce\Blocks\Payments\PaymentMethodType {
         /**
          * Unique name of the payment method in Blocks.
          * This MUST match the gateway id used by WooCommerce (yoone_moneris).
diff --git a/includes/blocks/ide-stub-wc-blocks.php b/includes/blocks/ide-stub-wc-blocks.php
new file mode 100644
index 0000000..6dcd559
--- /dev/null
+++ b/includes/blocks/ide-stub-wc-blocks.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * IDE/Linter stub for WooCommerce Blocks classes.
+ *
+ * 重要说明：此文件仅用于静态分析（IDE/代码检查）以消除“Undefined type”告警，
+ * 不会也不应该在 WordPress 运行时被 include/require。
+ * 请勿在任何运行时路径中加载此文件。
+ */
+
+namespace Automattic\WooCommerce\Blocks\Payments;
+
+// 如果真实类不存在，则为 IDE 提供一个最小的占位定义，避免类型未定义告警。
+if (! class_exists(\Automattic\WooCommerce\Blocks\Payments\PaymentMethodType::class)) {
+    /**
+     * 最小占位基类：仅用于 IDE 类型解析。
+     * 注意：方法签名仅为常见实现提供参考，并不代表真实 Woo Blocks 行为。
+     */
+    abstract class PaymentMethodType {
+        /** @return string */
+        abstract public function get_name();
+
+        /** @return bool */
+        public function is_active() { return true; }
+
+        /** @return array */
+        abstract public function get_payment_method_script_handles();
+
+        /** @return array */
+        public function get_payment_method_data() { return []; }
+
+        /** @return array */
+        public function get_supported_features() { return []; }
+    }
+}
\ No newline at end of file