diff --git a/assets/translations/en-US.json b/assets/translations/en-US.json
index c4757c3..d47cbab 100644
--- a/assets/translations/en-US.json
+++ b/assets/translations/en-US.json
@@ -241,6 +241,8 @@
   "settingsMisc": "Misc",
   "settingsMiscAbout": "About",
   "settingsMiscAboutDescription": "View the version information of Solian.",
+  "settingsAccountLanguage": "Account Language",
+  "settingsAccountLanguageDescription": "Set the language for email, notification, and other account-related content.",
   "sensitiveContent": "Sensitive Content",
   "sensitiveContentCollapsed": "Sensitive content has been collapsed.",
   "sensitiveContentDescription": "This content has been marked as sensitive, and may not be suitable for all viewers.",
@@ -606,5 +608,6 @@
     "one": "{} Source Point",
     "other": "{} Source Points"
   },
-  "aiThinkingProcess": "AI Thinking Process"
+  "aiThinkingProcess": "AI Thinking Process",
+  "accountSettingsApplied": "Account settings have been applied."
 }
diff --git a/assets/translations/zh-CN.json b/assets/translations/zh-CN.json
index f7f5340..e07913b 100644
--- a/assets/translations/zh-CN.json
+++ b/assets/translations/zh-CN.json
@@ -239,6 +239,8 @@
   "settingsMisc": "杂项",
   "settingsMiscAbout": "关于",
   "settingsMiscAboutDescription": "查看 Solian 的版本信息。",
+  "settingsAccountLanguage": "帐号偏好语言",
+  "settingsAccountLanguageDescription": "设置邮件、通知和其他帐号相关内容的语言。",
   "sensitiveContent": "敏感内容",
   "sensitiveContentCollapsed": "敏感内容已折叠。",
   "sensitiveContentDescription": "此内容已被标记，可能不适合所有人查看。",
@@ -604,5 +606,6 @@
     "one": "{} 源点",
     "other": "{} 源点"
   },
-  "aiThinkingProcess": "AI 思考过程"
+  "aiThinkingProcess": "AI 思考过程",
+  "accountSettingsApplied": "帐号设置已应用。"
 }
diff --git a/assets/translations/zh-HK.json b/assets/translations/zh-HK.json
index fec4541..35d4b2b 100644
--- a/assets/translations/zh-HK.json
+++ b/assets/translations/zh-HK.json
@@ -239,6 +239,8 @@
   "settingsMisc": "雜項",
   "settingsMiscAbout": "關於",
   "settingsMiscAboutDescription": "查看 Solian 的版本信息。",
+  "settingsAccountLanguage": "帳號偏好語言",
+  "settingsAccountLanguageDescription": "設置郵件、通知和其他帳號相關內容的語言。",
   "sensitiveContent": "敏感內容",
   "sensitiveContentCollapsed": "敏感內容已摺疊。",
   "sensitiveContentDescription": "此內容已被標記，可能不適合所有人查看。",
@@ -604,5 +606,6 @@
     "one": "{} 源點",
     "other": "{} 源點"
   },
-  "aiThinkingProcess": "AI 思考過程"
+  "aiThinkingProcess": "AI 思考過程",
+  "accountSettingsApplied": "帳號設置已應用。"
 }
diff --git a/assets/translations/zh-TW.json b/assets/translations/zh-TW.json
index 6a09248..e19a0e6 100644
--- a/assets/translations/zh-TW.json
+++ b/assets/translations/zh-TW.json
@@ -239,6 +239,8 @@
   "settingsMisc": "雜項",
   "settingsMiscAbout": "關於",
   "settingsMiscAboutDescription": "查看 Solian 的版本信息。",
+  "settingsAccountLanguage": "帳號偏好語言",
+  "settingsAccountLanguageDescription": "設置郵件、通知和其他帳號相關內容的語言。",
   "sensitiveContent": "敏感內容",
   "sensitiveContentCollapsed": "敏感內容已摺疊。",
   "sensitiveContentDescription": "此內容已被標記，可能不適合所有人查看。",
@@ -604,5 +606,6 @@
     "one": "{} 源點",
     "other": "{} 源點"
   },
-  "aiThinkingProcess": "AI 思考過程"
+  "aiThinkingProcess": "AI 思考過程",
+  "accountSettingsApplied": "帳號設置已應用。"
 }
diff --git a/lib/providers/userinfo.dart b/lib/providers/userinfo.dart
index 03ae8b5..081bed0 100644
--- a/lib/providers/userinfo.dart
+++ b/lib/providers/userinfo.dart
@@ -53,4 +53,11 @@ class UserProvider extends ChangeNotifier {
     user = null;
     notifyListeners();
   }
+
+  void setLanguage(String? value) {
+    if (value == null) return;
+    if (user == null) return;
+    user = user!.copyWith(language: value);
+    notifyListeners();
+  }
 }
diff --git a/lib/screens/account/account_settings.dart b/lib/screens/account/account_settings.dart
index fb9e680..4c6fee4 100644
--- a/lib/screens/account/account_settings.dart
+++ b/lib/screens/account/account_settings.dart
@@ -1,17 +1,41 @@
+import 'package:collection/collection.dart';
+import 'package:dropdown_button2/dropdown_button2.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import 'package:provider/provider.dart';
+import 'package:styled_widget/styled_widget.dart';
 import 'package:surface/providers/sn_network.dart';
+import 'package:surface/providers/userinfo.dart';
 import 'package:surface/widgets/dialog.dart';
 import 'package:surface/widgets/navigation/app_scaffold.dart';
+import 'package:intl/locale.dart';
 
 class AccountSettingsScreen extends StatelessWidget {
   const AccountSettingsScreen({super.key});
 
+  Future<void> _setAccountLanguage(BuildContext context, Locale? value) async {
+    if (value == null) return;
+    try {
+      final sn = context.read<SnNetworkProvider>();
+      final ua = context.read<UserProvider>();
+      await sn.client.put('/cgi/id/users/me/language', data: {
+        'language': value.toString(),
+      });
+      if (!context.mounted) return;
+      context.showSnackbar('accountSettingsApplied'.tr());
+      await ua.refreshUser();
+    } catch (err) {
+      if (!context.mounted) return;
+      context.showErrorDialog(err);
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
+    final ua = context.watch<UserProvider>();
+
     return AppScaffold(
       appBar: AppBar(
         leading: PageBackButton(),
@@ -21,6 +45,42 @@ class AccountSettingsScreen extends StatelessWidget {
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
+            ListTile(
+              title: Text('settingsAccountLanguage').tr(),
+              subtitle: Text('settingsAccountLanguageDescription').tr(),
+              contentPadding: const EdgeInsets.only(left: 24, right: 17),
+              leading: const Icon(Symbols.translate),
+              trailing: DropdownButtonHideUnderline(
+                child: DropdownButton2<Locale?>(
+                  isExpanded: true,
+                  items: [
+                    ...EasyLocalization.of(context)!.supportedLocales.mapIndexed((idx, ele) {
+                      return DropdownMenuItem<Locale?>(
+                        value: Locale.parse(ele.toString()),
+                        child: Text('${ele.languageCode}-${ele.countryCode}').fontSize(14),
+                      );
+                    }),
+                  ],
+                  value: ua.user?.language != null ? Locale.parse(ua.user!.language) : Locale.parse('en-US'),
+                  onChanged: (Locale? value) {
+                    if (value == null) return;
+                    _setAccountLanguage(context, value);
+                    ua.setLanguage(value.toString());
+                  },
+                  buttonStyleData: const ButtonStyleData(
+                    padding: EdgeInsets.symmetric(
+                      horizontal: 16,
+                      vertical: 5,
+                    ),
+                    height: 40,
+                    width: 160,
+                  ),
+                  menuItemStyleData: const MenuItemStyleData(
+                    height: 40,
+                  ),
+                ),
+              ),
+            ),
             ListTile(
               title: Text('accountProfileEdit').tr(),
               subtitle: Text('accountProfileEditSubtitle').tr(),
diff --git a/lib/screens/auth/register.dart b/lib/screens/auth/register.dart
index bd33053..15fe156 100644
--- a/lib/screens/auth/register.dart
+++ b/lib/screens/auth/register.dart
@@ -44,6 +44,7 @@ class _RegisterScreenState extends State<RegisterScreen> {
         'nick': nickname,
         'email': email,
         'password': password,
+        'language': EasyLocalization.of(context)!.currentLocale.toString(),
       });
 
       if (!context.mounted) return;
diff --git a/lib/types/account.dart b/lib/types/account.dart
index b6c52bf..9995a03 100644
--- a/lib/types/account.dart
+++ b/lib/types/account.dart
@@ -21,6 +21,7 @@ class SnAccount with _$SnAccount {
     required String name,
     required String nick,
     required Map<String, dynamic> permNodes,
+    required String language,
     required SnAccountProfile? profile,
     @Default([]) List<SnAccountBadge> badges,
     required DateTime? suspendedAt,
diff --git a/lib/types/account.freezed.dart b/lib/types/account.freezed.dart
index e4de56a..3b29f73 100644
--- a/lib/types/account.freezed.dart
+++ b/lib/types/account.freezed.dart
@@ -33,6 +33,7 @@ mixin _$SnAccount {
   String get name => throw _privateConstructorUsedError;
   String get nick => throw _privateConstructorUsedError;
   Map<String, dynamic> get permNodes => throw _privateConstructorUsedError;
+  String get language => throw _privateConstructorUsedError;
   SnAccountProfile? get profile => throw _privateConstructorUsedError;
   List<SnAccountBadge> get badges => throw _privateConstructorUsedError;
   DateTime? get suspendedAt => throw _privateConstructorUsedError;
@@ -69,6 +70,7 @@ abstract class $SnAccountCopyWith<$Res> {
       String name,
       String nick,
       Map<String, dynamic> permNodes,
+      String language,
       SnAccountProfile? profile,
       List<SnAccountBadge> badges,
       DateTime? suspendedAt,
@@ -107,6 +109,7 @@ class _$SnAccountCopyWithImpl<$Res, $Val extends SnAccount>
     Object? name = null,
     Object? nick = null,
     Object? permNodes = null,
+    Object? language = null,
     Object? profile = freezed,
     Object? badges = null,
     Object? suspendedAt = freezed,
@@ -164,6 +167,10 @@ class _$SnAccountCopyWithImpl<$Res, $Val extends SnAccount>
           ? _value.permNodes
           : permNodes // ignore: cast_nullable_to_non_nullable
               as Map<String, dynamic>,
+      language: null == language
+          ? _value.language
+          : language // ignore: cast_nullable_to_non_nullable
+              as String,
       profile: freezed == profile
           ? _value.profile
           : profile // ignore: cast_nullable_to_non_nullable
@@ -231,6 +238,7 @@ abstract class _$$SnAccountImplCopyWith<$Res>
       String name,
       String nick,
       Map<String, dynamic> permNodes,
+      String language,
       SnAccountProfile? profile,
       List<SnAccountBadge> badges,
       DateTime? suspendedAt,
@@ -268,6 +276,7 @@ class __$$SnAccountImplCopyWithImpl<$Res>
     Object? name = null,
     Object? nick = null,
     Object? permNodes = null,
+    Object? language = null,
     Object? profile = freezed,
     Object? badges = null,
     Object? suspendedAt = freezed,
@@ -325,6 +334,10 @@ class __$$SnAccountImplCopyWithImpl<$Res>
           ? _value._permNodes
           : permNodes // ignore: cast_nullable_to_non_nullable
               as Map<String, dynamic>,
+      language: null == language
+          ? _value.language
+          : language // ignore: cast_nullable_to_non_nullable
+              as String,
       profile: freezed == profile
           ? _value.profile
           : profile // ignore: cast_nullable_to_non_nullable
@@ -373,6 +386,7 @@ class _$SnAccountImpl extends _SnAccount {
       required this.name,
       required this.nick,
       required final Map<String, dynamic> permNodes,
+      required this.language,
       required this.profile,
       final List<SnAccountBadge> badges = const [],
       required this.suspendedAt,
@@ -429,6 +443,8 @@ class _$SnAccountImpl extends _SnAccount {
     return EqualUnmodifiableMapView(_permNodes);
   }
 
+  @override
+  final String language;
   @override
   final SnAccountProfile? profile;
   final List<SnAccountBadge> _badges;
@@ -453,7 +469,7 @@ class _$SnAccountImpl extends _SnAccount {
 
   @override
   String toString() {
-    return 'SnAccount(id: $id, createdAt: $createdAt, updatedAt: $updatedAt, deletedAt: $deletedAt, confirmedAt: $confirmedAt, contacts: $contacts, avatar: $avatar, banner: $banner, description: $description, name: $name, nick: $nick, permNodes: $permNodes, profile: $profile, badges: $badges, suspendedAt: $suspendedAt, affiliatedId: $affiliatedId, affiliatedTo: $affiliatedTo, automatedBy: $automatedBy, automatedId: $automatedId)';
+    return 'SnAccount(id: $id, createdAt: $createdAt, updatedAt: $updatedAt, deletedAt: $deletedAt, confirmedAt: $confirmedAt, contacts: $contacts, avatar: $avatar, banner: $banner, description: $description, name: $name, nick: $nick, permNodes: $permNodes, language: $language, profile: $profile, badges: $badges, suspendedAt: $suspendedAt, affiliatedId: $affiliatedId, affiliatedTo: $affiliatedTo, automatedBy: $automatedBy, automatedId: $automatedId)';
   }
 
   @override
@@ -479,6 +495,8 @@ class _$SnAccountImpl extends _SnAccount {
             (identical(other.nick, nick) || other.nick == nick) &&
             const DeepCollectionEquality()
                 .equals(other._permNodes, _permNodes) &&
+            (identical(other.language, language) ||
+                other.language == language) &&
             (identical(other.profile, profile) || other.profile == profile) &&
             const DeepCollectionEquality().equals(other._badges, _badges) &&
             (identical(other.suspendedAt, suspendedAt) ||
@@ -509,6 +527,7 @@ class _$SnAccountImpl extends _SnAccount {
         name,
         nick,
         const DeepCollectionEquality().hash(_permNodes),
+        language,
         profile,
         const DeepCollectionEquality().hash(_badges),
         suspendedAt,
@@ -548,6 +567,7 @@ abstract class _SnAccount extends SnAccount {
       required final String name,
       required final String nick,
       required final Map<String, dynamic> permNodes,
+      required final String language,
       required final SnAccountProfile? profile,
       final List<SnAccountBadge> badges,
       required final DateTime? suspendedAt,
@@ -586,6 +606,8 @@ abstract class _SnAccount extends SnAccount {
   @override
   Map<String, dynamic> get permNodes;
   @override
+  String get language;
+  @override
   SnAccountProfile? get profile;
   @override
   List<SnAccountBadge> get badges;
diff --git a/lib/types/account.g.dart b/lib/types/account.g.dart
index 87ea7fb..def3adb 100644
--- a/lib/types/account.g.dart
+++ b/lib/types/account.g.dart
@@ -26,6 +26,7 @@ _$SnAccountImpl _$$SnAccountImplFromJson(Map<String, dynamic> json) =>
       name: json['name'] as String,
       nick: json['nick'] as String,
       permNodes: json['perm_nodes'] as Map<String, dynamic>,
+      language: json['language'] as String,
       profile: json['profile'] == null
           ? null
           : SnAccountProfile.fromJson(json['profile'] as Map<String, dynamic>),
@@ -56,6 +57,7 @@ Map<String, dynamic> _$$SnAccountImplToJson(_$SnAccountImpl instance) =>
       'name': instance.name,
       'nick': instance.nick,
       'perm_nodes': instance.permNodes,
+      'language': instance.language,
       'profile': instance.profile?.toJson(),
       'badges': instance.badges.map((e) => e.toJson()).toList(),
       'suspended_at': instance.suspendedAt?.toIso8601String(),
diff --git a/lib/widgets/attachment/attachment_zoom.dart b/lib/widgets/attachment/attachment_zoom.dart
index 35397e7..8be522d 100644
--- a/lib/widgets/attachment/attachment_zoom.dart
+++ b/lib/widgets/attachment/attachment_zoom.dart
@@ -152,6 +152,7 @@ class _AttachmentZoomViewState extends State<AttachmentZoomView> {
       child: GestureDetector(
         behavior: HitTestBehavior.translucent,
         child: Scaffold(
+          backgroundColor: Colors.transparent,
           body: Stack(
             children: [
               Builder(builder: (context) {