diff --git a/client/lib/l10n/app_text.dart b/client/lib/l10n/app_text.dart
index 6546d00..0b7599c 100644
--- a/client/lib/l10n/app_text.dart
+++ b/client/lib/l10n/app_text.dart
@@ -587,4 +587,29 @@ abstract class AppText {
   String get orderRefresh;
   String get orderRebuy;
   String get payMethodNezha;       // 请复制内容后在支付宝内打开 / Copy and open in Alipay
+  String get orderStatusExpired;     // 已过期 / Expired
+
+  // ── 邀请好友(Spec ②占位) ──
+  String get inviteEntry;          // 邀请好友得会员 / Invite friends, earn membership
+  String get inviteEntrySub;       // 好友注册 · 双方都得会员天数 / Friend signs up · both earn days
+  String get inviteTitle;          // 邀请好友 / Invite friends
+  String get inviteCodeLabel;      // 邀请码 / Invite code
+  String get inviteLinkLabel;      // 邀请链接 / Invite link
+  String get inviteCopyCode;       // 复制邀请码 / Copy code
+  String get inviteCopyLink;       // 复制链接 / Copy link
+  String get inviteRewardsTitle;   // 奖励规则 / Rewards
+  String get inviteRewardRegister; // 好友注册 · 双方各得 3 天 / Sign up · +3 days each
+  String get inviteRewardFirstBuy; // 好友首购 · 双方各得 15 天 / First purchase · +15 days each
+  String get inviteRewardJoinTg;   // 加入 TG 频道 · 得 3 天 / Join TG · +3 days
+  String get inviteProgressTitle;  // 我的奖励 / My rewards
+  // ── 通知(Spec ③占位) ──
+  String get notifTitle;           // 通知 / Notifications
+  String get notifEmpty;           // 暂无通知 / No notifications
+  String get notifTypeNews;        // 新闻 / News
+  String get notifTypeFeature;     // 功能 / Feature
+  String get notifTypeImportant;   // 重要 / Important
+  // ── 设置分组 ──
+  String get settingsGroupConn;      // 连接 / Connection
+  String get settingsGroupAppearance;// 外观 / Appearance
+  String get settingsGroupAbout;     // 关于 / About
 }
diff --git a/client/lib/l10n/strings_en.dart b/client/lib/l10n/strings_en.dart
index 4ab49ed..3dbbf8e 100644
--- a/client/lib/l10n/strings_en.dart
+++ b/client/lib/l10n/strings_en.dart
@@ -469,4 +469,48 @@ class StringsEn extends AppText {
   String get orderRebuy => 'Buy again';
   @override
   String get payMethodNezha => 'Nazhapay';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => 'Invite friends, earn membership';
+  @override
+  String get inviteEntrySub => 'Friend signs up · both earn days';
+  @override
+  String get inviteTitle => 'Invite friends';
+  @override
+  String get inviteCodeLabel => 'Invite code';
+  @override
+  String get inviteLinkLabel => 'Invite link';
+  @override
+  String get inviteCopyCode => 'Copy code';
+  @override
+  String get inviteCopyLink => 'Copy link';
+  @override
+  String get inviteRewardsTitle => 'Rewards';
+  @override
+  String get inviteRewardRegister => 'Sign up · +3 days each';
+  @override
+  String get inviteRewardFirstBuy => 'First purchase · +15 days each';
+  @override
+  String get inviteRewardJoinTg => 'Join TG · +3 days';
+  @override
+  String get inviteProgressTitle => 'My rewards';
+  @override
+  String get notifTitle => 'Notifications';
+  @override
+  String get notifEmpty => 'No notifications';
+  @override
+  String get notifTypeNews => 'News';
+  @override
+  String get notifTypeFeature => 'Feature';
+  @override
+  String get notifTypeImportant => 'Important';
+  @override
+  String get settingsGroupConn => 'Connection';
+  @override
+  String get settingsGroupAppearance => 'Appearance';
+  @override
+  String get settingsGroupAbout => 'About';
+  @override
+  String get orderStatusExpired => 'Expired';
 }
diff --git a/client/lib/l10n/strings_es.dart b/client/lib/l10n/strings_es.dart
index 251add4..95050ea 100644
--- a/client/lib/l10n/strings_es.dart
+++ b/client/lib/l10n/strings_es.dart
@@ -470,4 +470,48 @@ class StringsEs extends AppText {
   String get orderRebuy => 'Comprar de nuevo';
   @override
   String get payMethodNezha => 'Nazhapay';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => 'Invita a amigos y gana membresía';
+  @override
+  String get inviteEntrySub => 'El amigo se registra · ambos ganan días';
+  @override
+  String get inviteTitle => 'Invitar amigos';
+  @override
+  String get inviteCodeLabel => 'Código de invitación';
+  @override
+  String get inviteLinkLabel => 'Enlace de invitación';
+  @override
+  String get inviteCopyCode => 'Copiar código';
+  @override
+  String get inviteCopyLink => 'Copiar enlace';
+  @override
+  String get inviteRewardsTitle => 'Reglas de recompensas';
+  @override
+  String get inviteRewardRegister => 'Registro de amigo · +3 días cada uno';
+  @override
+  String get inviteRewardFirstBuy => 'Primera compra del amigo · +15 días cada uno';
+  @override
+  String get inviteRewardJoinTg => 'Unirse al canal de TG · +3 días';
+  @override
+  String get inviteProgressTitle => 'Mis recompensas';
+  @override
+  String get notifTitle => 'Notificaciones';
+  @override
+  String get notifEmpty => 'Aún no hay notificaciones';
+  @override
+  String get notifTypeNews => 'Noticias';
+  @override
+  String get notifTypeFeature => 'Función';
+  @override
+  String get notifTypeImportant => 'Importante';
+  @override
+  String get settingsGroupConn => 'Conexión';
+  @override
+  String get settingsGroupAppearance => 'Apariencia';
+  @override
+  String get settingsGroupAbout => 'Acerca de';
+  @override
+  String get orderStatusExpired => 'Caducado';
 }
diff --git a/client/lib/l10n/strings_ja.dart b/client/lib/l10n/strings_ja.dart
index 17b7bad..6bde2d9 100644
--- a/client/lib/l10n/strings_ja.dart
+++ b/client/lib/l10n/strings_ja.dart
@@ -470,4 +470,48 @@ class StringsJa extends AppText {
   String get orderRebuy => '再購入';
   @override
   String get payMethodNezha => 'Nazhapay';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => '友達を招待してメンバーシップを獲得';
+  @override
+  String get inviteEntrySub => '友達が登録 · 双方に会員日数を付与';
+  @override
+  String get inviteTitle => '友達を招待';
+  @override
+  String get inviteCodeLabel => '招待コード';
+  @override
+  String get inviteLinkLabel => '招待リンク';
+  @override
+  String get inviteCopyCode => 'コードをコピー';
+  @override
+  String get inviteCopyLink => 'リンクをコピー';
+  @override
+  String get inviteRewardsTitle => '特典ルール';
+  @override
+  String get inviteRewardRegister => '友達が登録 · 双方に3日間付与';
+  @override
+  String get inviteRewardFirstBuy => '友達が初回購入 · 双方に15日間付与';
+  @override
+  String get inviteRewardJoinTg => 'TGチャンネルに参加 · 3日間付与';
+  @override
+  String get inviteProgressTitle => '獲得した特典';
+  @override
+  String get notifTitle => '通知';
+  @override
+  String get notifEmpty => '通知はありません';
+  @override
+  String get notifTypeNews => 'ニュース';
+  @override
+  String get notifTypeFeature => '新機能';
+  @override
+  String get notifTypeImportant => '重要';
+  @override
+  String get settingsGroupConn => '接続';
+  @override
+  String get settingsGroupAppearance => '外観';
+  @override
+  String get settingsGroupAbout => 'このアプリについて';
+  @override
+  String get orderStatusExpired => '期限切れ';
 }
diff --git a/client/lib/l10n/strings_ko.dart b/client/lib/l10n/strings_ko.dart
index 910a112..f02e44c 100644
--- a/client/lib/l10n/strings_ko.dart
+++ b/client/lib/l10n/strings_ko.dart
@@ -470,4 +470,48 @@ class StringsKo extends AppText {
   String get orderRebuy => '다시 구매';
   @override
   String get payMethodNezha => 'Nazhapay';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => '친구 초대하고 멤버십 받기';
+  @override
+  String get inviteEntrySub => '친구가 가입하면 · 양쪽 모두 회원 일수 획득';
+  @override
+  String get inviteTitle => '친구 초대';
+  @override
+  String get inviteCodeLabel => '초대 코드';
+  @override
+  String get inviteLinkLabel => '초대 링크';
+  @override
+  String get inviteCopyCode => '코드 복사';
+  @override
+  String get inviteCopyLink => '링크 복사';
+  @override
+  String get inviteRewardsTitle => '보상 규칙';
+  @override
+  String get inviteRewardRegister => '친구 가입 · 양쪽 각 3일 지급';
+  @override
+  String get inviteRewardFirstBuy => '친구 첫 구매 · 양쪽 각 15일 지급';
+  @override
+  String get inviteRewardJoinTg => 'TG 채널 가입 · 3일 지급';
+  @override
+  String get inviteProgressTitle => '내 보상';
+  @override
+  String get notifTitle => '알림';
+  @override
+  String get notifEmpty => '알림이 없습니다';
+  @override
+  String get notifTypeNews => '소식';
+  @override
+  String get notifTypeFeature => '기능';
+  @override
+  String get notifTypeImportant => '중요';
+  @override
+  String get settingsGroupConn => '연결';
+  @override
+  String get settingsGroupAppearance => '화면';
+  @override
+  String get settingsGroupAbout => '정보';
+  @override
+  String get orderStatusExpired => '만료됨';
 }
diff --git a/client/lib/l10n/strings_ru.dart b/client/lib/l10n/strings_ru.dart
index ba6bab0..4e254c8 100644
--- a/client/lib/l10n/strings_ru.dart
+++ b/client/lib/l10n/strings_ru.dart
@@ -470,4 +470,48 @@ class StringsRu extends AppText {
   String get orderRebuy => 'Купить снова';
   @override
   String get payMethodNezha => 'Nazhapay';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => 'Приглашайте друзей и получайте членство';
+  @override
+  String get inviteEntrySub => 'Друг регистрируется · оба получают дни подписки';
+  @override
+  String get inviteTitle => 'Пригласить друзей';
+  @override
+  String get inviteCodeLabel => 'Код приглашения';
+  @override
+  String get inviteLinkLabel => 'Ссылка приглашения';
+  @override
+  String get inviteCopyCode => 'Скопировать код';
+  @override
+  String get inviteCopyLink => 'Скопировать ссылку';
+  @override
+  String get inviteRewardsTitle => 'Правила наград';
+  @override
+  String get inviteRewardRegister => 'Регистрация друга · +3 дня каждому';
+  @override
+  String get inviteRewardFirstBuy => 'Первая покупка друга · +15 дней каждому';
+  @override
+  String get inviteRewardJoinTg => 'Вступление в TG-канал · +3 дня';
+  @override
+  String get inviteProgressTitle => 'Мои награды';
+  @override
+  String get notifTitle => 'Уведомления';
+  @override
+  String get notifEmpty => 'Пока нет уведомлений';
+  @override
+  String get notifTypeNews => 'Новости';
+  @override
+  String get notifTypeFeature => 'Функции';
+  @override
+  String get notifTypeImportant => 'Важное';
+  @override
+  String get settingsGroupConn => 'Подключение';
+  @override
+  String get settingsGroupAppearance => 'Внешний вид';
+  @override
+  String get settingsGroupAbout => 'О приложении';
+  @override
+  String get orderStatusExpired => 'Истёк';
 }
diff --git a/client/lib/l10n/strings_zh.dart b/client/lib/l10n/strings_zh.dart
index 11f8ee7..c05af4c 100644
--- a/client/lib/l10n/strings_zh.dart
+++ b/client/lib/l10n/strings_zh.dart
@@ -463,4 +463,48 @@ class StringsZh extends AppText {
   String get orderRebuy => '重新购买';
   @override
   String get payMethodNezha => '哪吒支付';
+
+  // ── 邀请 / 通知 / 设置分组 / 订单过期(Spec ②③占位) ──
+  @override
+  String get inviteEntry => '邀请好友得会员';
+  @override
+  String get inviteEntrySub => '好友注册 · 双方都得会员天数';
+  @override
+  String get inviteTitle => '邀请好友';
+  @override
+  String get inviteCodeLabel => '邀请码';
+  @override
+  String get inviteLinkLabel => '邀请链接';
+  @override
+  String get inviteCopyCode => '复制邀请码';
+  @override
+  String get inviteCopyLink => '复制链接';
+  @override
+  String get inviteRewardsTitle => '奖励规则';
+  @override
+  String get inviteRewardRegister => '好友注册 · 双方各得 3 天';
+  @override
+  String get inviteRewardFirstBuy => '好友首购 · 双方各得 15 天';
+  @override
+  String get inviteRewardJoinTg => '加入 TG 频道 · 得 3 天';
+  @override
+  String get inviteProgressTitle => '我的奖励';
+  @override
+  String get notifTitle => '通知';
+  @override
+  String get notifEmpty => '暂无通知';
+  @override
+  String get notifTypeNews => '新闻';
+  @override
+  String get notifTypeFeature => '功能';
+  @override
+  String get notifTypeImportant => '重要';
+  @override
+  String get settingsGroupConn => '连接';
+  @override
+  String get settingsGroupAppearance => '外观';
+  @override
+  String get settingsGroupAbout => '关于';
+  @override
+  String get orderStatusExpired => '已过期';
 }