feat(account): IA 重排+邀请入口+删偏好卡+设置/联系 formFactor 门控

账户页重排为:账户信息 → 购买套餐/我的订单/兑换码(三行合一) → 邀请好友(新增,
gift 图标+t.inviteEntry/inviteEntrySub,接 NavView.invite) → 设备(常显)/
设置/联系(仅 mobile,桌面侧栏已有同入口,formFactor 门控避免重复) → 退出。
删语言/主题/协议卡及仅供其用的 _LangSwitch/_PangolinSwitch(l10n getter 保留,
Settings 页仍用)。_NavRow 加可选 subtitle 用于邀请卡副标题。

新增 InviteScreen(client/lib/screens/invite_page.dart)占位屏:邀请码/链接卡
(可复制,值写死 PANGOLIN-DEMO)+ 奖励规则三条 + 我的奖励占位卡,顶部
TODO(spec-2) 标注接口点(邀请码/链接由后端签发,奖励进度来自 /v1/invite)。

顺带修复 desktop_shell.dart 非穷尽 switch 编译错误(NavView 加 invite 后未接线,
整个 client 目前无法编译);notifications 分支占位回落账户页,留给 Task 6 接线。

test/widget/account_ia_test.dart 新增桌面态 IA 结构断言(邀请入口存在/语言不在/
兑换在);account_desktop_nav_test.dart 同步去掉桌面态设置/联系两个失效断言
(改走桌面侧栏,非账户卡),加邀请入口断言。desktop/tablet 账户页 golden 重录。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

client/lib/screens/account_page.dart

@@ -1,4 +1,4 @@
-// account_page.dart — 账户页(套餐横幅 + 账户信息 + 设备/兑换/联系 + 语言/主题)
+// account_page.dart — 账户页(套餐横幅 + 账户信息 + 购买/订单/兑换 + 邀请 + 设备/设置/联系)
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
@@ -12,6 +12,7 @@ import '../state/navigation_provider.dart';
 import '../widgets/account_screens.dart';
 import '../widgets/app_top_bar.dart';
 import '../widgets/pangolin_icons.dart';
+import 'invite_page.dart';
 import 'orders_page.dart';
 import 'payment_page.dart';
 import 'purchase_page.dart';
@@ -35,8 +36,6 @@ class AccountPage extends ConsumerWidget {
     final me = ref.watch(meProvider).valueOrNull;
     final email = (me?.email.isNotEmpty ?? false) ? me!.email : '—';
     final expiresLabel = me?.expiresAt != null ? _fmtDate(me!.expiresAt!) : '';
-    final lang = ref.watch(localeProvider);
-    final isDark = Theme.of(context).brightness == Brightness.dark;
     final pad = isWide ? 28.0 : 20.0;
 
     // desktop 在内容区下钻（切 navView）；mobile/tablet 全屏 push。
@@ -57,21 +56,13 @@ class AccountPage extends ConsumerWidget {
           isFree: isFree,
           email: email,
           expiresLabel: expiresLabel,
-          // mobile/tablet 全屏 push(desktop 走 open() 的 navView 分支,mobilePage 参数被忽略,
-          // 由 desktop_shell 自己那份 PlansScreen(onChoose: ...) 接线,见 desktop_shell.dart)。
+          // Renew/Upgrade 直达购买页(套餐 + 渠道 switch),不再经 PlansScreen。
           onUpgrade: () => open(
-            NavView.plans,
-            PlansScreen(
+            NavView.purchase,
+            PurchaseScreen(
               t: t,
-              onChoose: (code) => code == 'pro'
-                  ? Navigator.of(context).push(MaterialPageRoute(
-                      builder: (_) => PurchaseScreen(
-                        t: t,
-                        onOrderCreated: () => Navigator.of(context)
-                            .push(MaterialPageRoute(builder: (_) => PaymentScreen(t: t))),
-                      ),
-                    ))
-                  : Navigator.of(context).push(MaterialPageRoute(builder: (_) => RedeemScreen(t: t))),
+              onOrderCreated: () => Navigator.of(context)
+                  .push(MaterialPageRoute(builder: (_) => PaymentScreen(t: t))),
             ),
           ),
         ),
@@ -84,44 +75,46 @@ class AccountPage extends ConsumerWidget {
           _InfoRow(icon: PangolinIcons.lock, title: t.accPassword, value: '••••••••••', trailing: _changeHint(c, t)),
         ]),
         const SizedBox(height: 16),
-        // 设备 / 兑换 / 联系
+        // 购买套餐 / 我的订单 / 兑换码（独立一块，紧跟账户信息）
         _Card(children: [
-          _NavRow(icon: PangolinIcons.monitorSmartphone, title: t.myDevices, onTap: () => open(NavView.devices, DevicesScreen(t: t))),
+          _NavRow(
+              icon: PangolinIcons.crown,
+              title: t.purchaseTitle,
+              onTap: () => open(
+                    NavView.purchase,
+                    PurchaseScreen(
+                      t: t,
+                      onOrderCreated: () => Navigator.of(context)
+                          .push(MaterialPageRoute(builder: (_) => PaymentScreen(t: t))),
+                    ),
+                  )),
           Divider(height: 1, color: c.border),
           _NavRow(icon: PangolinIcons.ticket, title: t.ordersTitle, onTap: () => open(NavView.orders, OrdersScreen(t: t))),
           Divider(height: 1, color: c.border),
-          _NavRow(icon: PangolinIcons.settings, title: t.settingsTitle, onTap: () => open(NavView.settings, SettingsScreen(t: t))),
-          Divider(height: 1, color: c.border),
           _NavRow(icon: PangolinIcons.shoppingBag, title: t.redeemEntry, onTap: () => open(NavView.redeem, RedeemScreen(t: t))),
-          Divider(height: 1, color: c.border),
-          _NavRow(icon: PangolinIcons.messageCircle, title: t.contactEntry, onTap: () => open(NavView.contact, ContactScreen(t: t))),
         ]),
         const SizedBox(height: 16),
-        // 语言 / 主题 / 协议
+        // 邀请好友
         _Card(children: [
-          _CustomRow(
-            icon: PangolinIcons.globe,
-            title: t.language,
-            trailing: _LangSwitch(lang: lang, onChange: (l) => ref.read(localeProvider.notifier).set(l)),
-          ),
-          Divider(height: 1, color: c.border),
-          _CustomRow(
-            icon: isDark ? PangolinIcons.moon : PangolinIcons.sun,
-            title: t.darkAppearance,
-            subtitle: isDark ? t.stateOn : t.followLight,
-            trailing: _PangolinSwitch(
-              value: isDark,
-              onChanged: (v) => ref.read(themeModeProvider.notifier).state = v ? ThemeMode.dark : ThemeMode.light,
-            ),
-          ),
-          Divider(height: 1, color: c.border),
-          _CustomRow(
-            icon: PangolinIcons.shield,
-            title: t.protocol,
-            trailing: Text('REALITY / Hysteria2', style: PangolinText.mono.copyWith(color: c.fg3, fontSize: 13)),
+          _NavRow(
+            icon: PangolinIcons.gift,
+            title: t.inviteEntry,
+            subtitle: t.inviteEntrySub,
+            onTap: () => open(NavView.invite, InviteScreen(t: t)),
           ),
         ]),
         const SizedBox(height: 16),
+        // 设备 / 设置 / 联系（设置/联系桌面侧栏已有,仅 mobile/tablet 在此下钻）
+        _Card(children: [
+          _NavRow(icon: PangolinIcons.monitorSmartphone, title: t.myDevices, onTap: () => open(NavView.devices, DevicesScreen(t: t))),
+          if (context.formFactor == FormFactor.mobile) ...[
+            Divider(height: 1, color: c.border),
+            _NavRow(icon: PangolinIcons.settings, title: t.settingsTitle, onTap: () => open(NavView.settings, SettingsScreen(t: t))),
+            Divider(height: 1, color: c.border),
+            _NavRow(icon: PangolinIcons.messageCircle, title: t.contactEntry, onTap: () => open(NavView.contact, ContactScreen(t: t))),
+          ],
+        ]),
+        const SizedBox(height: 16),
         _Card(children: [
           _NavRow(
             icon: PangolinIcons.logOut,
@@ -309,9 +302,10 @@ class _InfoRow extends StatelessWidget {
 }
 
 class _NavRow extends StatelessWidget {
-  const _NavRow({required this.icon, required this.title, required this.onTap, this.danger = false});
+  const _NavRow({required this.icon, required this.title, required this.onTap, this.subtitle, this.danger = false});
   final IconData icon;
   final String title;
+  final String? subtitle;
   final VoidCallback onTap;
   final bool danger;
   @override
@@ -324,7 +318,17 @@ class _NavRow extends StatelessWidget {
         child: Row(children: [
           Icon(icon, size: 20, color: danger ? c.danger : c.accent),
           const SizedBox(width: 13),
-          Expanded(child: Text(title, style: PangolinText.body.copyWith(color: danger ? c.danger : c.fg1, fontWeight: FontWeight.w500))),
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Text(title, style: PangolinText.body.copyWith(color: danger ? c.danger : c.fg1, fontWeight: FontWeight.w500)),
+                if (subtitle != null)
+                  Text(subtitle!, style: PangolinText.caption.copyWith(color: c.fg3)),
+              ],
+            ),
+          ),
           if (!danger) Icon(PangolinIcons.chevronRight, size: 18, color: c.fg3),
         ]),
       ),
@@ -332,30 +336,6 @@ class _NavRow extends StatelessWidget {
   }
 }
 
-class _CustomRow extends StatelessWidget {
-  const _CustomRow({required this.icon, required this.title, this.subtitle, required this.trailing});
-  final IconData icon;
-  final String title;
-  final String? subtitle;
-  final Widget trailing;
-  @override
-  Widget build(BuildContext context) {
-    final c = context.pangolin;
-    return Padding(
-      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 13),
-      child: Row(children: [
-        _IconBox(icon: icon),
-        const SizedBox(width: 13),
-        Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
-          Text(title, style: PangolinText.sm.copyWith(color: c.fg1, fontWeight: FontWeight.w500, fontSize: 15)),
-          if (subtitle != null) Text(subtitle!, style: PangolinText.caption.copyWith(color: c.fg3)),
-        ])),
-        trailing,
-      ]),
-    );
-  }
-}
-
 class _IconBox extends StatelessWidget {
   const _IconBox({required this.icon});
   final IconData icon;
@@ -369,74 +349,3 @@ class _IconBox extends StatelessWidget {
     );
   }
 }
-
-/// 段控:中文 / EN(单显切换)。
-class _LangSwitch extends StatelessWidget {
-  const _LangSwitch({required this.lang, required this.onChange});
-  final AppLang lang;
-  final ValueChanged<AppLang> onChange;
-  @override
-  Widget build(BuildContext context) {
-    final c = context.pangolin;
-    // 6 种语言用下拉(段控横排会挤)。
-    return PopupMenuButton<AppLang>(
-      initialValue: lang,
-      onSelected: onChange,
-      color: c.surface,
-      elevation: 8,
-      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(PangolinRadius.md)),
-      itemBuilder: (_) => [
-        for (final l in AppLang.values)
-          PopupMenuItem<AppLang>(
-            value: l,
-            height: 42,
-            child: Text(l.nativeLabel,
-                style: PangolinText.caption.copyWith(
-                    color: l == lang ? c.accent : c.fg1,
-                    fontWeight: l == lang ? FontWeight.w700 : FontWeight.w500,
-                    fontSize: 13)),
-          ),
-      ],
-      child: Container(
-        padding: const EdgeInsets.symmetric(horizontal: 13, vertical: 6),
-        decoration:
-            BoxDecoration(color: c.bgSubtle, borderRadius: BorderRadius.circular(PangolinRadius.full)),
-        child: Row(mainAxisSize: MainAxisSize.min, children: [
-          Text(lang.nativeLabel,
-              style: PangolinText.caption
-                  .copyWith(color: c.fg2, fontWeight: FontWeight.w700, fontSize: 12.5)),
-          const SizedBox(width: 4),
-          Icon(PangolinIcons.chevronDown, size: 14, color: c.fg3),
-        ]),
-      ),
-    );
-  }
-}
-
-class _PangolinSwitch extends StatelessWidget {
-  const _PangolinSwitch({required this.value, required this.onChanged});
-  final bool value;
-  final ValueChanged<bool> onChanged;
-  @override
-  Widget build(BuildContext context) {
-    final c = context.pangolin;
-    return GestureDetector(
-      onTap: () => onChanged(!value),
-      child: AnimatedContainer(
-        duration: PangolinMotion.base,
-        curve: PangolinMotion.easeOut,
-        width: 46, height: 28,
-        decoration: BoxDecoration(color: value ? c.accent : c.borderStrong, borderRadius: BorderRadius.circular(PangolinRadius.full)),
-        child: AnimatedAlign(
-          duration: PangolinMotion.base,
-          curve: PangolinMotion.easeOut,
-          alignment: value ? Alignment.centerRight : Alignment.centerLeft,
-          child: Padding(
-            padding: const EdgeInsets.all(3),
-            child: Container(width: 22, height: 22, decoration: const BoxDecoration(color: PangolinColors.white, shape: BoxShape.circle)),
-          ),
-        ),
-      ),
-    );
-  }
-}

client/lib/screens/invite_page.dart

@@ -0,0 +1,207 @@
+// invite_page.dart — 邀请好友(占位屏)
+//
+// TODO(spec-2): 邀请码/链接由后端签发,奖励进度来自 /v1/invite。当前码/链接/奖励进度
+// 均为静态占位,仅供 IA 走查——接后端前不接任何真实业务逻辑。
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../l10n/app_text.dart';
+import '../pangolin_theme.dart';
+import '../widgets/pangolin_icons.dart';
+
+const String _kDemoInviteCode = 'PANGOLIN-DEMO';
+const String _kDemoInviteLink = 'https://pangolin.app/i/PANGOLIN-DEMO';
+
+class InviteScreen extends ConsumerWidget {
+  const InviteScreen({super.key, required this.t, this.onBack, this.embedded = false});
+  final AppText t;
+  final VoidCallback? onBack;
+  final bool embedded;
+
+  Future<void> _copy(BuildContext context, String text, String toastLabel) async {
+    await Clipboard.setData(ClipboardData(text: text));
+    if (context.mounted) {
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+        content: Text(toastLabel),
+        behavior: SnackBarBehavior.floating,
+        duration: const Duration(milliseconds: 1400),
+      ));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final c = context.pangolin;
+
+    Widget body = ListView(
+      padding: const EdgeInsets.fromLTRB(20, 4, 20, 24),
+      children: [
+        _CopyCard(
+          icon: PangolinIcons.gift,
+          label: t.inviteCodeLabel,
+          value: _kDemoInviteCode,
+          mono: true,
+          copyLabel: t.inviteCopyCode,
+          onCopy: () => _copy(context, _kDemoInviteCode, t.copied),
+        ),
+        const SizedBox(height: 14),
+        _CopyCard(
+          icon: PangolinIcons.link,
+          label: t.inviteLinkLabel,
+          value: _kDemoInviteLink,
+          mono: false,
+          copyLabel: t.inviteCopyLink,
+          onCopy: () => _copy(context, _kDemoInviteLink, t.copied),
+        ),
+        const SizedBox(height: 20),
+        Padding(
+          padding: const EdgeInsets.fromLTRB(2, 0, 2, 10),
+          child: Text(t.inviteRewardsTitle, style: PangolinText.sm.copyWith(color: c.fg2, fontWeight: FontWeight.w700, fontSize: 13)),
+        ),
+        Container(
+          decoration: BoxDecoration(
+            color: c.surface,
+            borderRadius: BorderRadius.circular(PangolinRadius.lg),
+            border: Border.all(color: c.border),
+            boxShadow: PangolinShadow.sm,
+          ),
+          clipBehavior: Clip.antiAlias,
+          child: Column(children: [
+            _RewardRow(icon: PangolinIcons.users, text: t.inviteRewardRegister),
+            Divider(height: 1, color: c.border),
+            _RewardRow(icon: PangolinIcons.crown, text: t.inviteRewardFirstBuy),
+            Divider(height: 1, color: c.border),
+            _RewardRow(icon: PangolinIcons.messageCircle, text: t.inviteRewardJoinTg),
+          ]),
+        ),
+        const SizedBox(height: 20),
+        Padding(
+          padding: const EdgeInsets.fromLTRB(2, 0, 2, 10),
+          child: Text(t.inviteProgressTitle, style: PangolinText.sm.copyWith(color: c.fg2, fontWeight: FontWeight.w700, fontSize: 13)),
+        ),
+        Container(
+          width: double.infinity,
+          padding: const EdgeInsets.all(24),
+          decoration: BoxDecoration(
+            color: c.surface,
+            borderRadius: BorderRadius.circular(PangolinRadius.lg),
+            border: Border.all(color: c.border),
+            boxShadow: PangolinShadow.sm,
+          ),
+          child: Column(children: [
+            Icon(PangolinIcons.gift, size: 26, color: c.fg3),
+            const SizedBox(height: 10),
+            Text('—', style: PangolinText.body.copyWith(color: c.fg3)),
+          ]),
+        ),
+      ],
+    );
+
+    if (embedded) return body;
+    return Scaffold(
+      backgroundColor: c.bg,
+      body: SafeArea(
+        child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+          Padding(
+            padding: const EdgeInsets.fromLTRB(8, 6, 16, 10),
+            child: Row(children: [
+              IconButton(
+                onPressed: onBack ?? () => Navigator.of(context).maybePop(),
+                icon: Icon(PangolinIcons.arrowLeft, size: 22, color: c.fg1),
+              ),
+              Text(t.inviteTitle, style: PangolinText.h3.copyWith(color: c.fg1, fontWeight: FontWeight.w700)),
+            ]),
+          ),
+          Expanded(child: body),
+        ]),
+      ),
+    );
+  }
+}
+
+class _CopyCard extends StatelessWidget {
+  const _CopyCard({
+    required this.icon,
+    required this.label,
+    required this.value,
+    required this.mono,
+    required this.copyLabel,
+    required this.onCopy,
+  });
+  final IconData icon;
+  final String label;
+  final String value;
+  final bool mono;
+  final String copyLabel;
+  final VoidCallback onCopy;
+
+  @override
+  Widget build(BuildContext context) {
+    final c = context.pangolin;
+    return Container(
+      padding: const EdgeInsets.all(18),
+      decoration: BoxDecoration(
+        color: c.surface,
+        borderRadius: BorderRadius.circular(PangolinRadius.xl),
+        border: Border.all(color: c.border),
+        boxShadow: PangolinShadow.sm,
+      ),
+      child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+        Row(children: [
+          Container(
+            width: 32, height: 32,
+            decoration: BoxDecoration(color: c.accentSubtle, borderRadius: BorderRadius.circular(PangolinRadius.sm)),
+            child: Icon(icon, size: 17, color: c.accent),
+          ),
+          const SizedBox(width: 10),
+          Text(label, style: PangolinText.sm.copyWith(color: c.fg2, fontWeight: FontWeight.w700, fontSize: 13.5)),
+        ]),
+        const SizedBox(height: 12),
+        Row(children: [
+          Expanded(
+            child: Text(value,
+                overflow: TextOverflow.ellipsis,
+                style: mono
+                    ? PangolinText.mono.copyWith(color: c.fg1, fontWeight: FontWeight.w700, letterSpacing: 1.2, fontSize: 15)
+                    : PangolinText.sm.copyWith(color: c.fg1, fontWeight: FontWeight.w600)),
+          ),
+          const SizedBox(width: 10),
+          OutlinedButton.icon(
+            onPressed: onCopy,
+            style: OutlinedButton.styleFrom(
+              foregroundColor: c.accent,
+              side: BorderSide(color: c.accentBorder),
+              shape: const StadiumBorder(),
+              padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
+            ),
+            icon: Icon(PangolinIcons.copy, size: 15),
+            label: Text(copyLabel, style: PangolinText.caption.copyWith(fontWeight: FontWeight.w700, fontSize: 12.5)),
+          ),
+        ]),
+      ]),
+    );
+  }
+}
+
+class _RewardRow extends StatelessWidget {
+  const _RewardRow({required this.icon, required this.text});
+  final IconData icon;
+  final String text;
+  @override
+  Widget build(BuildContext context) {
+    final c = context.pangolin;
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 13),
+      child: Row(children: [
+        Container(
+          width: 32, height: 32,
+          decoration: BoxDecoration(color: c.accentSubtle, borderRadius: BorderRadius.circular(PangolinRadius.sm)),
+          child: Icon(icon, size: 17, color: c.accent),
+        ),
+        const SizedBox(width: 13),
+        Expanded(child: Text(text, style: PangolinText.sm.copyWith(color: c.fg1, fontWeight: FontWeight.w500, fontSize: 14.5))),
+      ]),
+    );
+  }
+}

client/lib/shell/desktop_shell.dart

@@ -8,6 +8,7 @@ import '../pangolin_theme.dart';
 import '../screens/account_page.dart';
 import '../screens/connect_page.dart';
 import '../screens/contact_page.dart';
+import '../screens/invite_page.dart';
 import '../screens/nodes_page.dart';
 import '../screens/orders_page.dart';
 import '../screens/payment_page.dart';
@@ -52,6 +53,7 @@ class DesktopShell extends ConsumerWidget {
       NavView.purchase: t.purchaseTitle,
       NavView.payment: t.paymentTitle,
       NavView.orders: t.ordersTitle,
+      NavView.invite: t.inviteTitle,
     };
 
     void go(NavView v) => ref.read(navViewProvider.notifier).state = v;
@@ -84,6 +86,11 @@ class DesktopShell extends ConsumerWidget {
           return PaymentScreen(t: t, embedded: true, onDone: () => go(NavView.account));
         case NavView.orders:
           return OrdersScreen(t: t, embedded: true);
+        case NavView.invite:
+          return InviteScreen(t: t, embedded: true);
+        case NavView.notifications:
+          // TODO(task-6): 通知屏尚未接线,占位回落账户页,避免非穷尽 switch 编译失败。
+          return const AccountPage(isWide: true);
       }
     }
 

client/test/widget/account_desktop_nav_test.dart

@@ -88,19 +88,18 @@ Future<NavView> _tapRow(WidgetTester tester, String label) async {
 void main() {
   setUpAll(disableGoogleFontsFetching);
 
-  testWidgets('desktop account -> settings', (tester) async {
-    expect(await _tapRow(tester, t.settingsTitle), NavView.settings);
-  });
+  // 注:设置/联系已从桌面态账户卡移除(IA 重构后仅 mobile/tablet 在账户页下钻,
+  // 桌面走侧栏 NavSidebar 的 t.settingsTitle/t.contactTitle 入口,非本文件覆盖范围)。
   testWidgets('desktop account -> redeem', (tester) async {
     expect(await _tapRow(tester, t.redeemEntry), NavView.redeem);
   });
-  testWidgets('desktop account -> contact', (tester) async {
-    expect(await _tapRow(tester, t.contactEntry), NavView.contact);
-  });
   testWidgets('desktop account -> orders', (tester) async {
     expect(await _tapRow(tester, t.ordersTitle), NavView.orders);
   });
   testWidgets('desktop account -> devices', (tester) async {
     expect(await _tapRow(tester, t.myDevices), NavView.devices);
   });
+  testWidgets('desktop account -> invite', (tester) async {
+    expect(await _tapRow(tester, t.inviteEntry), NavView.invite);
+  });
 }

client/test/widget/account_ia_test.dart

@@ -0,0 +1,84 @@
+// account_ia_test.dart — 账户页 IA 结构断言:邀请入口在/语言不在/兑换在。
+//
+// 桌面态(windows 平台 + 宽 surface),经 HomeShell 渲染真实 DesktopShell → AccountPage,
+// 与 account_desktop_nav_test.dart 同一套 harness。
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pangolin_vpn/bridge/vpn_bridge_mock.dart';
+import 'package:pangolin_vpn/bridge/vpn_bridge_provider.dart';
+import 'package:pangolin_vpn/l10n/app_text.dart';
+import 'package:pangolin_vpn/l10n/strings_zh.dart';
+import 'package:pangolin_vpn/pangolin_theme.dart';
+import 'package:pangolin_vpn/screens/account_page.dart';
+import 'package:pangolin_vpn/services/token_store.dart';
+import 'package:pangolin_vpn/shell/desktop_shell.dart';
+import 'package:pangolin_vpn/shell/home_shell.dart';
+import 'package:pangolin_vpn/state/app_providers.dart';
+import 'package:pangolin_vpn/state/auth_provider.dart';
+import 'package:pangolin_vpn/state/navigation_provider.dart';
+
+import '../helpers/harness.dart';
+
+final AppText t = StringsZh();
+
+class _NullTokenStore implements TokenStore {
+  const _NullTokenStore();
+  @override
+  Future<void> saveTokens({required String access, required String refresh}) async {}
+  @override
+  Future<String?> loadAccessToken() async => null;
+  @override
+  Future<String?> loadRefreshToken() async => null;
+  @override
+  Future<void> clear() async {}
+  @override
+  Future<void> markOnboarded() async {}
+  @override
+  Future<bool> isOnboarded() async => true;
+  @override
+  Future<void> saveLastEmail(String email) async {}
+  @override
+  Future<String?> loadLastEmail() async => null;
+}
+
+void main() {
+  setUpAll(disableGoogleFontsFetching);
+
+  testWidgets('account page IA: invite entry present / language moved out / redeem present', (tester) async {
+    debugDefaultTargetPlatformOverride = TargetPlatform.windows;
+    tester.view.physicalSize = const Size(920, 1400);
+    tester.view.devicePixelRatio = 1.0;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+    try {
+      await tester.pumpWidget(ProviderScope(
+        overrides: [
+          tokenStoreProvider.overrideWithValue(const _NullTokenStore()),
+          vpnBridgeProvider.overrideWithValue(VpnBridgeMock()),
+          appTextProvider.overrideWithValue(t),
+          navViewProvider.overrideWith((ref) => NavView.account),
+        ],
+        child: MaterialApp(
+          debugShowCheckedModeBanner: false,
+          theme: PangolinTheme.light,
+          home: const HomeShell(),
+        ),
+      ));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(DesktopShell), findsOneWidget);
+      expect(find.byType(AccountPage), findsOneWidget);
+
+      // 邀请入口存在(账户页内)。
+      expect(find.descendant(of: find.byType(AccountPage), matching: find.text(t.inviteEntry)), findsOneWidget);
+      // 语言/主题不在账户页(移到 Settings)。
+      expect(find.descendant(of: find.byType(AccountPage), matching: find.text(t.language)), findsNothing);
+      // 兑换在账户页(购买&订单&兑换块)。
+      expect(find.descendant(of: find.byType(AccountPage), matching: find.text(t.redeemEntry)), findsOneWidget);
+    } finally {
+      debugDefaultTargetPlatformOverride = null;
+    }
+  });
+}