diff --git a/.gitignore b/.gitignore
index 399e24b2..91cf9856 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,4 @@ temp*build*/
 /.codex-temp
 /target/
 /logs
+.worktrees/
diff --git a/src/components/rpg-entry/RpgEntryHomeView.recharge.test.tsx b/src/components/rpg-entry/RpgEntryHomeView.recharge.test.tsx
index 9dd27453..18484be1 100644
--- a/src/components/rpg-entry/RpgEntryHomeView.recharge.test.tsx
+++ b/src/components/rpg-entry/RpgEntryHomeView.recharge.test.tsx
@@ -692,6 +692,7 @@ afterEach(() => {
     configurable: true,
     value: undefined,
   });
+  window.history.replaceState(null, '', '/');
 });
 
 test('opens wallet ledger modal from narrative coin card', async () => {
@@ -859,6 +860,37 @@ test('profile redeem invite shortcut hides after redeemed or one day old', async
   ).toBeNull();
 });
 
+
+test('invite query opens login modal for logged out users', async () => {
+  const openLoginModal = vi.fn();
+  window.history.replaceState(null, '', '/?inviteCode=spring-2026');
+
+  renderLoggedOutHomeView(openLoginModal);
+
+  await waitFor(() => {
+    expect(openLoginModal).toHaveBeenCalledTimes(1);
+  });
+});
+
+test('invite query opens redeem modal directly for logged in users', async () => {
+  window.history.replaceState(null, '', '/?inviteCode=spring-2026');
+
+  renderProfileView();
+
+  const input = await screen.findByLabelText('邀请码');
+  expect((input as HTMLInputElement).value).toBe('SPRING2026');
+});
+
+test('profile redeem invite modal reads query invite code after login', async () => {
+  window.history.replaceState(null, '', '/?inviteCode=spring-2026');
+
+  renderProfileView();
+
+  const input = await screen.findByLabelText('邀请码');
+
+  expect((input as HTMLInputElement).value).toBe('SPRING2026');
+});
+
 test('profile redeem invite modal submits code and hides shortcut after success', async () => {
   const user = userEvent.setup();
   const onRechargeSuccess = vi.fn();
diff --git a/src/components/rpg-entry/RpgEntryHomeView.tsx b/src/components/rpg-entry/RpgEntryHomeView.tsx
index f8de96a6..dedfad73 100644
--- a/src/components/rpg-entry/RpgEntryHomeView.tsx
+++ b/src/components/rpg-entry/RpgEntryHomeView.tsx
@@ -62,10 +62,10 @@ import {
 } from '../../services/authService';
 import { copyTextToClipboard } from '../../services/clipboard';
 import {
+  claimRpgProfileTaskReward,
   getRpgProfileReferralInviteCenter,
   getRpgProfileTasks,
   getRpgProfileWalletLedger,
-  claimRpgProfileTaskReward,
   redeemRpgProfileReferralInviteCode,
   redeemRpgProfileRewardCode,
 } from '../../services/rpg-entry/rpgProfileClient';
@@ -158,6 +158,8 @@ const AVATAR_OUTPUT_SIZE = 256;
 const AVATAR_ALLOWED_TYPES = new Set(['image/jpeg', 'image/png', 'image/webp']);
 const PLATFORM_WORK_COVER_CAROUSEL_INTERVAL_MS = 4200;
 const PROFILE_INVITE_REDEEM_ENTRY_VISIBLE_MS = 24 * 60 * 60 * 1000;
+const PROFILE_INVITE_QUERY_KEYS = ['inviteCode', 'invite_code'] as const;
+
 type ProfilePopupPanel = 'invite' | 'redeem' | 'community';
 type MobileHomeChannel = 'recommend' | 'today' | 'category';
 type PlatformRankingTab = 'hot' | 'remix' | 'new' | 'like';
@@ -1514,6 +1516,24 @@ function isWithinProfileInviteRedeemWindow(
   return Date.now() - createdTime <= PROFILE_INVITE_REDEEM_ENTRY_VISIBLE_MS;
 }
 
+function normalizeProfileInviteQueryCode(value: string | null | undefined) {
+  return (value ?? '')
+    .trim()
+    .replace(/[^0-9a-z]/giu, '')
+    .toUpperCase();
+}
+
+function readProfileInviteCodeFromLocationSearch(search: string) {
+  const params = new URLSearchParams(search);
+  for (const key of PROFILE_INVITE_QUERY_KEYS) {
+    const inviteCode = normalizeProfileInviteQueryCode(params.get(key));
+    if (inviteCode) {
+      return inviteCode;
+    }
+  }
+  return '';
+}
+
 function formatPlayedWorkType(value: string | null | undefined) {
   const normalizedValue = (value ?? '').toLowerCase();
   if (normalizedValue === 'puzzle') {
@@ -2695,7 +2715,17 @@ export function RpgEntryHomeView({
   const [isLoadingReferral, setIsLoadingReferral] = useState(false);
   const [isReferralCenterInitialized, setIsReferralCenterInitialized] =
     useState(false);
-  const [referralRedeemCode, setReferralRedeemCode] = useState('');
+  const pendingProfileInviteCode = useMemo(
+    () =>
+      typeof window === 'undefined'
+        ? ''
+        : readProfileInviteCodeFromLocationSearch(window.location.search),
+    [],
+  );
+  const autoOpenedInviteQueryRef = useRef(false);
+  const [referralRedeemCode, setReferralRedeemCode] = useState(
+    pendingProfileInviteCode,
+  );
   const [isSubmittingReferralRedeem, setIsSubmittingReferralRedeem] =
     useState(false);
   const [referralError, setReferralError] = useState<string | null>(null);
@@ -2936,6 +2966,23 @@ export function RpgEntryHomeView({
     }
     authUi?.openLoginModal();
   };
+
+  useEffect(() => {
+    if (!pendingProfileInviteCode || autoOpenedInviteQueryRef.current) {
+      return;
+    }
+
+    autoOpenedInviteQueryRef.current = true;
+    if (!authUi?.user) {
+      authUi?.openLoginModal();
+      return;
+    }
+
+    setReferralRedeemCode(pendingProfileInviteCode);
+    setReferralError(null);
+    setReferralSuccess(null);
+    setProfilePopupPanel('redeem');
+  }, [authUi, pendingProfileInviteCode]);
   const scheduleProfileCopyStateReset = () => {
     if (profileCopyResetTimerRef.current !== null) {
       window.clearTimeout(profileCopyResetTimerRef.current);
@@ -3173,7 +3220,7 @@ export function RpgEntryHomeView({
     setReferralError(null);
     setReferralSuccess(null);
     if (panel === 'redeem') {
-      setReferralRedeemCode('');
+      setReferralRedeemCode(pendingProfileInviteCode);
     }
     if (panel === 'community') {
       return;