diff --git a/src/app/chat/components/pwa-install-overlay.tsx b/src/app/chat/components/pwa-install-overlay.tsx
index 477a7a0d..337ca233 100644
--- a/src/app/chat/components/pwa-install-overlay.tsx
+++ b/src/app/chat/components/pwa-install-overlay.tsx
@@ -26,26 +26,13 @@ export function PwaInstallOverlay() {
     let mounted = true;
 
     const init = async () => {
-      // 0) PWA 支持 / 安装 双重门禁（两种环境都检查）：
-      //    isSupported() 检查 serviceWorker + window（SSR 安全）
-      //    isInstalled() 检查 standalone display-mode（避免给已安装用户再弹）
-      if (!pwaUtil.isSupported()) return;
-      if (pwaUtil.isInstalled()) return;
-      if (BrowserDetector.isInAppBrowser()) return;
+      const isDev = AppEnvUtil.isDevelopment();
+      const shouldShowDialog = await shouldShowPwaInstallDialog(isDev);
+      if (!shouldShowDialog) return;
+
       // 提前挂 beforeinstallprompt 监听，避免用户点 OK 时事件已在更早时机丢失。
       pwaUtil.prepareInstallPrompt();
 
-      const isDev = AppEnvUtil.isDevelopment();
-
-      if (!isDev) {
-        // 生产环境：每日只弹一次（防骚扰）
-        const lastResult = await SpAsyncUtil.getString(PWA_DIALOG_KEY);
-        if (!lastResult.success) return;
-        const today = new Date().toISOString().slice(0, 10);
-        if (lastResult.data === today) return; // 今天已显示过
-      }
-      // 开发环境：跳过"每日一次"门禁，每次进入都弹，方便 UI 测试
-
       // 开发环境 1s 后弹（快）；生产环境 3.5s 后弹（让用户先看到聊天内容）
       const delay = isDev ? 1000 : 3500;
       setTimeout(() => {
@@ -63,6 +50,23 @@ export function PwaInstallOverlay() {
   return <div className={styles.hidden} aria-hidden="true" />;
 }
 
+async function shouldShowPwaInstallDialog(isDevelopment: boolean) {
+  // PWA 支持 / 安装 双重门禁（两种环境都检查）。
+  if (!pwaUtil.isSupported()) return false;
+  if (pwaUtil.isInstalled()) return false;
+  if (BrowserDetector.isInAppBrowser()) return false;
+
+  // 开发环境：跳过"每日一次"门禁，每次进入都弹，方便 UI 测试。
+  if (isDevelopment) return true;
+
+  // 生产环境：每日只弹一次（防骚扰）。
+  const lastResult = await SpAsyncUtil.getString(PWA_DIALOG_KEY);
+  if (!lastResult.success) return false;
+
+  const today = new Date().toISOString().slice(0, 10);
+  return lastResult.data !== today;
+}
+
 function showPwaDialog() {
   if (typeof document === "undefined") return;
   // 记录显示时间
diff --git a/src/app/subscription/components/subscription-checkout-button.tsx b/src/app/subscription/components/subscription-checkout-button.tsx
index a4ed49ce..fa50aca9 100644
--- a/src/app/subscription/components/subscription-checkout-button.tsx
+++ b/src/app/subscription/components/subscription-checkout-button.tsx
@@ -63,10 +63,12 @@ export function SubscriptionCheckoutButton({
       }
 
       if (isEzpay) {
-        void redirectToEzpay({
+        void launchEzpayRedirect({
           orderId: payment.currentOrderId,
           paymentUrl,
           subscriptionType,
+          onFailed: (errorMessage) =>
+            paymentDispatch({ type: "PaymentLaunchFailed", errorMessage }),
         });
         return;
       }
@@ -144,10 +146,14 @@ export function SubscriptionCheckoutButton({
   const handleEzpayConfirm = () => {
     if (!payment.currentOrderId || !ezpayPaymentUrl) return;
     setIsConfirmingEzpay(true);
-    void redirectToEzpay({
+    void launchEzpayRedirect({
       orderId: payment.currentOrderId,
       paymentUrl: ezpayPaymentUrl,
       subscriptionType,
+      onFailed: (errorMessage) => {
+        setIsConfirmingEzpay(false);
+        paymentDispatch({ type: "PaymentLaunchFailed", errorMessage });
+      },
     });
   };
 
@@ -235,47 +241,57 @@ interface RedirectToEzpayInput {
   orderId: string | null;
   paymentUrl: string;
   subscriptionType: "vip" | "voice";
+  onFailed: (errorMessage: string) => void;
 }
 
-async function redirectToEzpay({
+async function launchEzpayRedirect({
   orderId,
   paymentUrl,
   subscriptionType,
+  onFailed,
 }: RedirectToEzpayInput): Promise<void> {
-  log.debug("[subscription-checkout] redirectToEzpay START", {
+  log.debug("[subscription-checkout] launchEzpayRedirect START", {
     hasOrderId: Boolean(orderId),
     orderId,
     subscriptionType,
     paymentUrl,
   });
 
-  if (orderId) {
-    const saveResult = await PendingPaymentOrderStorage.setPendingOrder({
-      orderId,
-      payChannel: "ezpay",
-      subscriptionType,
-      createdAt: Date.now(),
-    });
-    if (Result.isOk(saveResult)) {
-      log.debug("[subscription-checkout] pending ezpay order saved", {
-        orderId,
-        subscriptionType,
-      });
-    } else {
-      log.error("[subscription-checkout] pending ezpay order save failed", {
-        orderId,
-        subscriptionType,
-        error: saveResult.error,
-      });
-    }
-  } else {
-    log.warn("[subscription-checkout] skip pending ezpay order save: missing orderId", {
+  if (!orderId) {
+    const errorMessage = "Missing order id before opening Ezpay.";
+    log.error("[subscription-checkout] pending ezpay order save skipped", {
       subscriptionType,
       paymentUrl,
+      errorMessage,
     });
+    onFailed(errorMessage);
+    return;
   }
 
-  log.debug("[subscription-checkout] redirectToEzpay NOW", {
+  const saveResult = await PendingPaymentOrderStorage.setPendingOrder({
+    orderId,
+    payChannel: "ezpay",
+    subscriptionType,
+    createdAt: Date.now(),
+  });
+  if (Result.isErr(saveResult)) {
+    const errorMessage =
+      "Could not save payment order before opening Ezpay. Please try again.";
+    log.error("[subscription-checkout] pending ezpay order save failed", {
+      orderId,
+      subscriptionType,
+      error: saveResult.error,
+    });
+    onFailed(errorMessage);
+    return;
+  }
+
+  log.debug("[subscription-checkout] pending ezpay order saved", {
+    orderId,
+    subscriptionType,
+  });
+
+  log.debug("[subscription-checkout] launchEzpayRedirect NOW", {
     orderId,
     subscriptionType,
     paymentUrl,