diff --git a/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.h b/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.h
index 81dfbda..b2ddddc 100644
--- a/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.h
+++ b/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.h
@@ -20,6 +20,13 @@ FOUNDATION_EXPORT NSNotificationName const KBIAPDidCompletePurchaseNotification;
 - (void)verifyReceipt:(NSString *)receipt
            completion:(void (^)(BOOL success, NSString * _Nullable message, NSInteger statusCode))completion;
 
+/// 校验 StoreKit 2 交易的 JWS 签名串
+/// - Parameters:
+///   - payload: 交易 JWS 字符串
+///   - completion: 回调
+- (void)verifySignedPayload:(NSString *)payload
+                 completion:(void (^)(BOOL success, NSString * _Nullable message, NSInteger statusCode))completion;
+
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.m b/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.m
index 20a456e..9496869 100644
--- a/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.m
+++ b/keyBoard/Class/Pay/M/IAPVerifyTransactionObj.m
@@ -46,6 +46,29 @@ NSNotificationName const KBIAPDidCompletePurchaseNotification = @"KBIAPDidComple
     }];
 }
 
+- (void)verifySignedPayload:(NSString *)payload
+                 completion:(void (^)(BOOL success, NSString * _Nullable message, NSInteger statusCode))completion {
+    if (![payload isKindOfClass:NSString.class] || payload.length == 0) {
+        if (completion) {
+            completion(NO, KBLocalized(@"Payload missing"), KBBizCodeReceiptError);
+        }
+        return;
+    }
+    NSDictionary *params = @{ @"signedPayload": payload ?: @"" };
+    __weak typeof(self) weakSelf = self;
+    [self.payVM applePayReqWithParams:params needShow:NO completion:^(NSInteger sta, NSString * _Nullable msg) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            __strong typeof(weakSelf) self = weakSelf;
+            (void)self;
+            BOOL success = (sta == KBBizCodeSuccess);
+            NSString *tip = msg ?: (success ? KBLocalized(@"Success") : KBLocalized(@"Payment failed"));
+            if (completion) {
+                completion(success, tip, sta);
+            }
+        });
+    }];
+}
+
 #pragma mark - FGIAPVerifyTransaction
 
 - (void)pushSuccessTradeReultToServer:(NSString *)receipt
diff --git a/keyBoard/Class/Pay/StoreKit2Manager/KBStoreKitBridge.swift b/keyBoard/Class/Pay/StoreKit2Manager/KBStoreKitBridge.swift
index f4379fd..f70e24f 100644
--- a/keyBoard/Class/Pay/StoreKit2Manager/KBStoreKitBridge.swift
+++ b/keyBoard/Class/Pay/StoreKit2Manager/KBStoreKitBridge.swift
@@ -51,30 +51,12 @@ final class KBStoreKitBridge: NSObject, StoreKitDelegate {
             
             do {
                 try await self.manager.purchase(productId: productId)
-                let state = self.manager.currentState
-                switch state {
-                case .purchaseSuccess(let id) where id == productId:
-                    let receipt = try await Self.fetchReceiptData()
-                    self.verifyReceipt(receipt, completion: completion)
-                case .purchasePending(let id) where id == productId:
+                
+                if let payload = await Self.latestJWSPayload(for: productId) {
+                    self.verifySignedPayload(payload, completion: completion)
+                } else {
                     await MainActor.run {
-                        completion(false, "Purchase pending approval.")
-                    }
-                case .purchaseCancelled(let id) where id == productId:
-                    await MainActor.run {
-                        completion(false, "Purchase cancelled.")
-                    }
-                case .purchaseFailed(let id, let error) where id == productId:
-                    await MainActor.run {
-                        completion(false, error.localizedDescription)
-                    }
-                case .error(let error):
-                    await MainActor.run {
-                        completion(false, error.localizedDescription)
-                    }
-                default:
-                    await MainActor.run {
-                        completion(false, "Purchase failed.")
+                        completion(false, "Unable to obtain transaction payload.")
                     }
                 }
             } catch {
@@ -119,12 +101,12 @@ final class KBStoreKitBridge: NSObject, StoreKitDelegate {
         return true
     }
     
-    private func verifyReceipt(_ receipt: String, completion: @escaping (Bool, String?) -> Void) {
-        receiptVerifier.verifyReceipt(receipt) { success, message, _ in
+    private func verifySignedPayload(_ payload: String, completion: @escaping (Bool, String?) -> Void) {
+        receiptVerifier.verifySignedPayload(payload) { success, message, _ in
             DispatchQueue.main.async {
                 if success {
                     NotificationCenter.default.post(
-                        name: NSNotification.Name(rawValue: NSNotification.Name.KBIAPDidCompletePurchase.rawValue),
+                        name: NSNotification.Name.KBIAPDidCompletePurchase,
                         object: nil
                     )
                 }
@@ -133,22 +115,11 @@ final class KBStoreKitBridge: NSObject, StoreKitDelegate {
         }
     }
     
-    private static func fetchReceiptData() async throws -> String {
-        if let receipt = try loadReceiptFromBundle() {
-            return receipt
+    private static func latestJWSPayload(for productId: String) async -> String? {
+        guard let result = await Transaction.latest(for: productId) else { return nil }
+        if case .verified = result {
+            return result.jwsRepresentation
         }
-        try await AppStore.sync()
-        if let receipt = try loadReceiptFromBundle() {
-            return receipt
-        }
-        throw StoreKitError.verificationFailed
-    }
-    
-    private static func loadReceiptFromBundle() throws -> String? {
-        guard let url = Bundle.main.appStoreReceiptURL else { return nil }
-        guard FileManager.default.fileExists(atPath: url.path) else { return nil }
-        let data = try Data(contentsOf: url, options: .alwaysMapped)
-        guard !data.isEmpty else { return nil }
-        return data.base64EncodedString()
+        return nil
     }
 }