diff --git a/app/[locale]/join/page.tsx b/app/[locale]/join/page.tsx
index 5373586..7c4534d 100644
--- a/app/[locale]/join/page.tsx
+++ b/app/[locale]/join/page.tsx
@@ -84,12 +84,13 @@ export default function JoinPage() {
     checkExisting();
   }, []);
 
-  // 轮询到支付成功时跳转到 /join/paid，避免在 /join 重复显示成功页
-  usePayStatusPoll(() => {
+  // 轮询到支付成功时跳转到 /join/paid，携带 order_id 供 complete-order 使用
+  usePayStatusPoll((orderId) => {
     if (typeof window === "undefined") return;
     const path = window.location.pathname;
     const paidPath = path.replace(/\/join\/?$/, "") + "/join/paid";
-    window.location.replace(paidPath);
+    const url = orderId ? `${paidPath}?order_id=${encodeURIComponent(orderId)}` : paidPath;
+    window.location.replace(url);
   });
 
   useEffect(() => {
diff --git a/app/[locale]/join/paid/page.tsx b/app/[locale]/join/paid/page.tsx
index adefe37..acca7ad 100644
--- a/app/[locale]/join/paid/page.tsx
+++ b/app/[locale]/join/paid/page.tsx
@@ -53,18 +53,32 @@ export default function JoinPaidPage() {
         pbSaveAuth(d.token, d.record);
       }
       window.dispatchEvent(new CustomEvent("auth:updated"));
-      setTimeout(() => window.dispatchEvent(new CustomEvent("auth:updated")), 500);
+      window.dispatchEvent(new CustomEvent("vip:updated"));
+      setTimeout(() => {
+        window.dispatchEvent(new CustomEvent("auth:updated"));
+        window.dispatchEvent(new CustomEvent("vip:updated"));
+      }, 400);
       if (d.is_new) {
         await fetch("/api/meetup/set-needs-password-change", { method: "POST", credentials: "include" });
         if (!cancelled) {
           setNeedPasswordChange(true);
           setShowPasswordModal(true);
         }
+      } else {
+        const needRes = await fetch("/api/meetup/need-password-change", { credentials: "include" });
+        const needData = await needRes.json().catch(() => ({}));
+        if (!cancelled && needData?.need === true) {
+          setNeedPasswordChange(true);
+          setShowPasswordModal(true);
+        }
       }
       return { ok: true };
     };
 
     const run = async () => {
+      const urlOrderId = typeof window !== "undefined"
+        ? new URLSearchParams(window.location.search).get("order_id") || ""
+        : "";
       const cookie = document.cookie.split(";").find((c) => c.trim().startsWith("join_pay_order="));
       const rawValue = cookie?.split("=")[1]?.trim();
       const storageValue = (() => {
@@ -75,7 +89,7 @@ export default function JoinPaidPage() {
         }
       })();
       const decoded = rawValue ? decodeURIComponent(rawValue) : storageValue;
-      const orderId = decoded.split("|")[0]?.trim() || "";
+      const orderId = urlOrderId || decoded.split("|")[0]?.trim() || "";
       if (!orderId) {
         clearPendingOrder();
         window.location.replace(`/${window.location.pathname.split("/")[1] || "zh"}/join`);
diff --git a/app/components/HeroSection.tsx b/app/components/HeroSection.tsx
index edb1675..7f7cca4 100644
--- a/app/components/HeroSection.tsx
+++ b/app/components/HeroSection.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useCallback, useEffect } from "react";
+import { useState, useCallback, useEffect, useRef } from "react";
 import { Link, useLocale } from "@/i18n/navigation";
 import { useTranslation } from "@/i18n/navigation";
 import JoinModal from "./JoinModal";
@@ -85,6 +85,9 @@ export default function HeroSection() {
     return () => window.removeEventListener("auth:updated", onAuth);
   }, []);
 
+  const checkUserCacheRef = useRef<{ email: string; data: { exists: boolean; vip: boolean }; ts: number } | null>(null);
+  const CACHE_TTL_MS = 60_000;
+
   const handleCheckAndProceed = useCallback(
     async (em: string) => {
       if (checking) return;
@@ -96,6 +99,15 @@ export default function HeroSection() {
       setError(null);
       setChecking(true);
       try {
+        const cached = checkUserCacheRef.current;
+        if (cached && cached.email === trimmed && Date.now() - cached.ts < CACHE_TTL_MS) {
+          const { exists, vip } = cached.data;
+          if (exists) {
+            setJoinModalVipOnly(!!vip);
+            setJoinModalOpen(true);
+            return;
+          }
+        }
         const checkRes = await fetch("/api/meetup/check-user", {
           method: "POST",
           headers: { "Content-Type": "application/json" },
@@ -107,6 +119,7 @@ export default function HeroSection() {
           throw new Error(checkData?.error || checkData?.detail || (locale === "zh" ? "操作失败" : "Operation failed"));
         }
         if (checkData.exists) {
+          checkUserCacheRef.current = { email: trimmed, data: { exists: true, vip: !!checkData.vip }, ts: Date.now() };
           if (checkData.vip) {
             setJoinModalOpen(true);
             setJoinModalVipOnly(true);
@@ -136,6 +149,9 @@ export default function HeroSection() {
                 (locale === "zh" ? "创建用户失败" : "Failed to create user")
             );
           }
+          if (ensureData.is_new) {
+            await fetch("/api/meetup/set-needs-password-change", { method: "POST", credentials: "include" });
+          }
           user_id = String(ensureData.user_id).trim();
           if (ensureData?.token && ensureData?.record) {
             await fetch("/api/auth/sync-session", {
diff --git a/app/components/JoinModal.tsx b/app/components/JoinModal.tsx
index 1520a38..1f495dd 100644
--- a/app/components/JoinModal.tsx
+++ b/app/components/JoinModal.tsx
@@ -54,6 +54,9 @@ export default function JoinModal({ isOpen, onClose, initialEmail = "", vipOnly
       if (!res.ok || !data?.ok) {
         throw new Error(data?.error || (locale === "zh" ? "操作失败" : "Operation failed"));
       }
+      if (data.is_new) {
+        await fetch("/api/meetup/set-needs-password-change", { method: "POST", credentials: "include" });
+      }
       const { pbSaveAuth } = await import("@/app/lib/pocketbase");
       pbSaveAuth(data.token, data.record);
       await fetch("/api/auth/sync-session", {
diff --git a/app/components/Navbar.tsx b/app/components/Navbar.tsx
index cdd6c8f..bbf28af 100644
--- a/app/components/Navbar.tsx
+++ b/app/components/Navbar.tsx
@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useCallback } from "react";
 import { Link, useLocale, usePathname, useRouter, useTranslation } from "@/i18n/navigation";
-import { getStoredUserEmail, pbLogout } from "@/app/lib/pocketbase";
+import { getStoredUserEmail, getStoredUser, getStoredToken, pbLogout } from "@/app/lib/pocketbase";
 import { getNavLinks } from "@/config";
 import AuthModal from "./AuthModal";
 import ThemeToggle from "./ThemeToggle";
@@ -25,8 +25,8 @@ export default function NavbarComponent() {
 
   const fetchAuth = useCallback(async () => {
     try {
-      const res = await fetch("/api/auth/me", { credentials: "include", cache: "no-store" });
-      const data = await res.json();
+      let res = await fetch("/api/auth/me", { credentials: "include", cache: "no-store" });
+      let data = await res.json();
       if (data?.user && data?.token) {
         const { pbSaveAuth } = await import("@/app/lib/pocketbase");
         pbSaveAuth(data.token, { id: data.user.id, email: data.user.email });
@@ -34,6 +34,25 @@ export default function NavbarComponent() {
         setUserVip(!!data.user.vip);
         return;
       }
+      const token = getStoredToken();
+      const record = getStoredUser();
+      if (token && record?.id && record?.email) {
+        const syncRes = await fetch("/api/auth/sync-session", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ token, record }),
+          credentials: "include",
+        });
+        if (syncRes.ok) {
+          res = await fetch("/api/auth/me", { credentials: "include", cache: "no-store" });
+          data = await res.json();
+          if (data?.user && data?.token) {
+            setUserEmail(data.user.email);
+            setUserVip(!!data.user.vip);
+            return;
+          }
+        }
+      }
     } catch {
       /* ignore */
     }
@@ -47,15 +66,21 @@ export default function NavbarComponent() {
 
   useEffect(() => {
     const onAuthUpdated = () => fetchAuth();
+    const onVipUpdated = () => fetchAuth();
     window.addEventListener("auth:updated", onAuthUpdated);
-    return () => window.removeEventListener("auth:updated", onAuthUpdated);
+    window.addEventListener("vip:updated", onVipUpdated);
+    return () => {
+      window.removeEventListener("auth:updated", onAuthUpdated);
+      window.removeEventListener("vip:updated", onVipUpdated);
+    };
   }, [fetchAuth]);
 
   const handleLogout = useCallback(async () => {
     await pbLogout();
     setUserEmail(null);
     setUserVip(false);
-  }, []);
+    router.replace("/");
+  }, [router]);
 
   const isActive = useCallback((href: string) => {
     if (href.startsWith("/#")) return false;
@@ -124,7 +149,7 @@ export default function NavbarComponent() {
               <span className="hidden sm:block max-w-[120px] truncate text-sm text-gray-600 dark:text-gray-400">
                 {userEmail}
               </span>
-              <UserAvatar email={userEmail} isVip={userVip} onLogout={() => { setUserEmail(null); setUserVip(false); }} />
+              <UserAvatar email={userEmail} isVip={userVip} onLogout={handleLogout} />
             </div>
           ) : null}
           <button
diff --git a/app/lib/payment/usePayStatusPoll.ts b/app/lib/payment/usePayStatusPoll.ts
index c0c3f63..f5625ec 100644
--- a/app/lib/payment/usePayStatusPoll.ts
+++ b/app/lib/payment/usePayStatusPoll.ts
@@ -54,18 +54,27 @@ function parsePendingOrder(raw: string | null): [string | null, boolean] {
   return [orderId, true];
 }
 
-export function usePayStatusPoll(onPaid: () => void): boolean {
+export function usePayStatusPoll(onPaid: (orderId: string) => void): boolean {
   const [polling, setPolling] = useState(false);
   const onPaidRef = useRef(onPaid);
   onPaidRef.current = onPaid;
 
   useEffect(() => {
+    const urlOrderId =
+      typeof window !== "undefined"
+        ? new URLSearchParams(window.location.search).get("order_id") || ""
+        : "";
     const cookieRaw = getCookie(COOKIE_NAME);
     const [cookieOrderId, cookieValid] = parsePendingOrder(cookieRaw);
     const storageRaw = getStorage(STORAGE_NAME);
     const [storageOrderId, storageValid] = parsePendingOrder(storageRaw);
-    const orderId = cookieValid ? cookieOrderId : storageValid ? storageOrderId : null;
-    const activeRaw = cookieValid ? cookieRaw : storageValid ? storageRaw : null;
+    let orderId = cookieValid ? cookieOrderId : storageValid ? storageOrderId : null;
+    let activeRaw = cookieValid ? cookieRaw : storageValid ? storageRaw : null;
+    if (!orderId && urlOrderId.trim()) {
+      orderId = urlOrderId.trim();
+      activeRaw = `${orderId}|${Date.now()}`;
+      persistPendingOrder(activeRaw);
+    }
 
     if (!orderId) {
       if (cookieRaw || storageRaw) {
@@ -120,7 +129,7 @@ export function usePayStatusPoll(onPaid: () => void): boolean {
           stop();
           clearPendingOrder();
           setPolling(false);
-          onPaidRef.current();
+          onPaidRef.current(orderId);
           return;
         }
       } catch {
diff --git a/app/lib/pocketbase/auth.ts b/app/lib/pocketbase/auth.ts
index ffd1de2..f1bb0f7 100644
--- a/app/lib/pocketbase/auth.ts
+++ b/app/lib/pocketbase/auth.ts
@@ -67,11 +67,17 @@ export function pbSaveAuth(token: string, record: AuthUser): void {
   localStorage.setItem(PB_STORAGE_KEYS.user, JSON.stringify(record));
 }
 
-/** 登出 - 清除本地存储和根域 Cookie */
+/** 登出 - 清除本地存储、支付订单、根域 Cookie */
 export async function pbLogout(): Promise<void> {
   if (typeof window === "undefined") return;
   localStorage.removeItem(PB_STORAGE_KEYS.token);
   localStorage.removeItem(PB_STORAGE_KEYS.user);
+  localStorage.removeItem("join_pay_order");
+  try {
+    document.cookie = "join_pay_order=; path=/; max-age=0";
+  } catch {
+    /* ignore */
+  }
   try {
     await fetch("/api/auth/logout", { method: "POST", credentials: "include" });
   } catch {
@@ -80,18 +86,24 @@ export async function pbLogout(): Promise<void> {
   window.dispatchEvent(new CustomEvent("auth:updated"));
 }
 
-export function getStoredUserEmail(): string | null {
+export function getStoredUser(): AuthUser | null {
   if (typeof window === "undefined") return null;
   try {
     const raw = localStorage.getItem(PB_STORAGE_KEYS.user);
     if (!raw) return null;
     const user = JSON.parse(raw);
-    return user?.email ?? null;
+    if (!user?.id || !user?.email) return null;
+    return user;
   } catch {
     return null;
   }
 }
 
+export function getStoredUserEmail(): string | null {
+  const user = getStoredUser();
+  return user?.email ?? null;
+}
+
 export function getStoredToken(): string | null {
   if (typeof window === "undefined") return null;
   return localStorage.getItem(PB_STORAGE_KEYS.token);
diff --git a/app/lib/pocketbase/index.ts b/app/lib/pocketbase/index.ts
index 48fd101..aea22de 100644
--- a/app/lib/pocketbase/index.ts
+++ b/app/lib/pocketbase/index.ts
@@ -3,6 +3,7 @@ export {
   pbRegister,
   pbSaveAuth,
   pbLogout,
+  getStoredUser,
   getStoredUserEmail,
   getStoredToken,
 } from "./auth";
diff --git a/config/services.config.ts b/config/services.config.ts
index 50edadf..2cb3d1d 100644
--- a/config/services.config.ts
+++ b/config/services.config.ts
@@ -44,8 +44,8 @@ const PAYJSAPI_PORT = process.env.PAYJSAPI_PORT || "8007";
 /** 站点标识，用于 VIP 按站点隔离 */
 export const SITE_ID = process.env.NEXT_PUBLIC_SITE_ID || "meetup";
 
-/** meetup 加入游牧中国 价格（分），测试用1元 */
-export const MEETUP_JOIN_AMOUNT = 100;
+/** meetup 加入游牧中国 价格（分），88元=8800 */
+export const MEETUP_JOIN_AMOUNT = 8800;
 
 export function getApiUrlFromRequest(hostHeader: string | null): string | null {
   if (!hostHeader) return null;
@@ -71,7 +71,7 @@ export function getPaymentConfig(): PaymentConfig {
     enabled: true,
     apiUrl: process.env.PAYMENT_API_URL || DEFAULT_PAYMENT_API_URL,
     provider: (process.env.PAYMENT_PROVIDER as "zpay" | "xorpay") || "zpay",
-    defaultAmount: Number(process.env.PAYMENT_DEFAULT_AMOUNT) || 100,
+    defaultAmount: Number(process.env.PAYMENT_DEFAULT_AMOUNT) || 8800,
     defaultType: process.env.PAYMENT_DEFAULT_TYPE || "meetup",
     zpaySubmitUrl: process.env.ZPAY_SUBMIT_URL || "https://zpayz.cn/submit.php",
   };