diff --git a/frontend/index.html b/frontend/index.html
index 63e4d33..c28cfb9 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -69,7 +69,7 @@
                             <legend data-i18n="form.legend_basic">基础配置</legend>
                             <div class="form-group">
                                 <label for="domain" data-i18n="form.domain_label">主域名 (将用作文件名)</label>
-                                <input type="text" id="domain" name="domain" required>
+                                <input type="text" id="domain" name="domain">
                             </div>
                         </fieldset>
 
diff --git a/frontend/init.html b/frontend/init.html
index 1b8bf78..3e094a6 100644
--- a/frontend/init.html
+++ b/frontend/init.html
@@ -40,7 +40,7 @@
     </div>
     
     <div class="language-switcher-corner">
-        <button id="lang-switcher-btn" class="btn-icon" data-i18n-title="common.switch_language" title="切换语言">
+        <button id="lang-switcher-btn" class="btn-icon" data-i18n-title="common.switch_language">
             <i class="fa-solid fa-language"></i>
         </button>
         <ul id="lang-options-list" class="hidden"></ul>
diff --git a/frontend/locales/en.json b/frontend/locales/en.json
index b73980b..a081905 100644
--- a/frontend/locales/en.json
+++ b/frontend/locales/en.json
@@ -51,7 +51,8 @@
             "new_password_label": "New Password (min. 8 characters)",
             "confirm_new_password_label": "Confirm New Password",
             "reset_password_btn": "Reset Password",
-            "resetting_password_btn": "Resetting..."
+            "resetting_password_btn": "Resetting...",
+            "interface_settings_title": "Interface Settings"
         },
         "login": {
             "page_title": "Login - CaddyDash",
@@ -98,7 +99,31 @@
         "legend_features": "Additional Features",
         "feature_log": "Enable Logging",
         "feature_error_page": "Enable Custom Error Pages",
-        "feature_encode": "Enable Compression"
+        "feature_encode": "Enable Compression",
+        "legend_general_options": "General Options",
+        "admin_api_port_label": "Admin API Port (Read-only)",
+        "http_port_label": "HTTP Port",
+        "https_port_label": "HTTPS Port",
+        "enable_debug_mode": "Enable Debug Mode",
+        "enable_prometheus_metrics": "Enable Prometheus Metrics",
+        "legend_main_log_config": "Main Log Configuration",
+        "log_level_label": "Log Level",
+        "log_rotate_size_label": "Rotate Size",
+        "log_rotate_size_placeholder": "e.g., 10MB",
+        "log_rotate_keep_label": "Retain Files",
+        "log_rotate_keep_placeholder": "e.g., 10",
+        "log_rotate_keep_for_time_label": "Retain Time",
+        "log_rotate_keep_for_time_placeholder": "e.g., 24h",
+        "legend_global_tls_config": "Global TLS Configuration (ACME)",
+        "enable_global_dns_challenge": "Enable Global DNS Challenge",
+        "dns_provider_label": "DNS Provider",
+        "acme_email_label": "ACME Email",
+        "acme_email_placeholder": "For certificate application and renewal notifications",
+        "api_token_label": "API Token (or equivalent credentials)",
+        "legend_ech_config": "Encrypted Client Hello (ECH)",
+        "enable_ech_experimental": "Enable ECH (Experimental)",
+        "ech_outer_sni_label": "ECH Outer SNI",
+        "ech_outer_sni_placeholder": "e.g., ech.example.com"
     },
     "dialogs": {
         "unsaved_changes_title": "Unsaved Changes",
@@ -135,6 +160,8 @@
         "init_error_mismatch": "Passwords do not match.",
         "init_error_short": "Password must be at least {minLength} characters long.",
         "init_success": "Setup complete! Redirecting to login...",
-        "init_error_generic": "Initialization failed. Please try again."
+        "init_error_generic": "Initialization failed. Please try again.",
+        "error_all_fields_required": "All fields are required.",
+        "pwd_reset_success": "Password reset successfully. Please log in with your new password."
     }
 }
\ No newline at end of file
diff --git a/frontend/locales/zh-CN.json b/frontend/locales/zh-CN.json
index b4929fe..8ab7ede 100644
--- a/frontend/locales/zh-CN.json
+++ b/frontend/locales/zh-CN.json
@@ -51,7 +51,8 @@
             "new_password_label": "新密码 (至少8位)",
             "confirm_new_password_label": "确认新密码",
             "reset_password_btn": "重置密码",
-            "resetting_password_btn": "重置中..."
+            "resetting_password_btn": "重置中...",
+            "interface_settings_title": "界面设置"
         },
         "login": {
             "page_title": "登录 - CaddyDash",
@@ -98,7 +99,31 @@
         "legend_features": "附加功能",
         "feature_log": "启用日志",
         "feature_error_page": "启用错误页",
-        "feature_encode": "启用压缩"
+        "feature_encode": "启用压缩",
+        "legend_general_options": "通用选项",
+        "admin_api_port_label": "管理API端口 (只读)",
+        "http_port_label": "HTTP 端口",
+        "https_port_label": "HTTPS 端口",
+        "enable_debug_mode": "启用Debug模式",
+        "enable_prometheus_metrics": "启用Prometheus指标",
+        "legend_main_log_config": "主日志配置",
+        "log_level_label": "日志级别",
+        "log_rotate_size_label": "滚动大小",
+        "log_rotate_size_placeholder": "例如: 10MB",
+        "log_rotate_keep_label": "保留文件数",
+        "log_rotate_keep_placeholder": "例如: 10",
+        "log_rotate_keep_for_time_label": "保留时间",
+        "log_rotate_keep_for_time_placeholder": "例如: 24h",
+        "legend_global_tls_config": "全局TLS配置 (ACME)",
+        "enable_global_dns_challenge": "启用全局 DNS Challenge",
+        "dns_provider_label": "DNS 提供商",
+        "acme_email_label": "ACME 邮箱",
+        "acme_email_placeholder": "用于证书申请和续订通知",
+        "api_token_label": "API Token (或等效凭证)",
+        "legend_ech_config": "加密客户端问候 (ECH)",
+        "enable_ech_experimental": "启用 ECH (实验性功能)",
+        "ech_outer_sni_label": "ECH Outer SNI",
+        "ech_outer_sni_placeholder": "例如: ech.example.com"
     },
     "dialogs": {
         "unsaved_changes_title": "未保存的更改",
diff --git a/frontend/settings.html b/frontend/settings.html
index 34e5fc4..e569576 100644
--- a/frontend/settings.html
+++ b/frontend/settings.html
@@ -4,7 +4,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>面板设置 - CaddyDash</title>
+    <title data-i18n="pages.settings.page_title">面板设置 - CaddyDash</title>
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
@@ -21,11 +21,12 @@
             </header>
             <nav class="sidebar-nav">
                 <ul>
-                    <li><a href="/" data-nav-id="configs"><i class="fa-solid fa-sitemap"></i> <span>配置管理</span></a></li>
+                    <li><a href="/" data-nav-id="configs"><i class="fa-solid fa-sitemap"></i> <span
+                                data-i18n="nav.configs">配置管理</span></a></li>
                     <li><a href="/global.html" data-nav-id="global"><i class="fa-solid fa-globe"></i>
-                            <span>全局配置</span></a></li>
+                            <span data-i18n="nav.global">全局配置</span></a></li>
                     <li><a href="/settings.html" data-nav-id="settings"><i class="fa-solid fa-gears"></i>
-                            <span>面板设置</span></a></li>
+                            <span data-i18n="nav.settings">面板设置</span></a></li>
                 </ul>
             </nav>
             <div class="sidebar-bottom">
@@ -34,52 +35,52 @@
                 </div>
                 <div class="caddy-control-panel">
                     <div id="caddy-status-indicator" class="caddy-status"><span class="status-dot checking"></span><span
-                            class="status-text">检查中...</span></div>
+                            class="status-text" data-i18n="status.checking">检查中...</span></div>
                     <div id="caddy-action-button-container"></div>
                 </div>
                 <div class="logout-section"><button id="logout-btn" class="btn btn-secondary"><i
-                            class="fa-solid fa-right-from-bracket"></i><span>退出登录</span></button></div>
+                            class="fa-solid fa-right-from-bracket"></i><span data-i18n="nav.logout">退出登录</span></button></div>
             </div>
         </aside>
 
         <main class="main-content">
             <header class="main-header">
                 <button class="btn-icon" id="menu-toggle-btn"><i class="fa-solid fa-bars"></i></button>
-                <h2>面板设置</h2>
+                <h2 data-i18n="pages.settings.title">面板设置</h2>
             </header>
 
             <div id="view-container">
                 <section class="card-panel">
-                    <h3 data-i18n="settings_language_title">界面设置</h3>
+                    <h3 data-i18n="pages.settings.interface_settings_title">界面设置</h3>
                     <div class="form-group" style="margin-top: 16px;">
                         <label for="select-language" data-i18n="pages.settings.language_label">语言</label>
                         <div id="select-language" class="custom-select"></div>
                     </div>
                 </section>
                 <section class="card-panel">
-                    <h3>账户安全</h3>
+                    <h3 data-i18n="pages.settings.account_security_title">账户安全</h3>
                     <form id="reset-password-form" style="margin-top: 24px;">
                         <div class="form-group">
-                            <label for="username">用户名</label>
+                            <label for="username" data-i18n="pages.login.username_label">用户名</label>
                             <input type="text" id="username" name="username" autocomplete="username">
                         </div>
                         <div class="form-group">
-                            <label for="old_password">当前密码</label>
+                            <label for="old_password" data-i18n="pages.settings.current_password_label">当前密码</label>
                             <input type="password" id="old_password" name="old_password"
                                 autocomplete="current-password">
                         </div>
                         <div class="form-group">
-                            <label for="new_password">新密码 (至少8位)</label>
+                            <label for="new_password" data-i18n="pages.settings.new_password_label">新密码 (至少8位)</label>
                             <input type="password" id="new_password" name="new_password" autocomplete="new-password">
                         </div>
                         <div class="form-group">
-                            <label for="confirm_new_password">确认新密码</label>
+                            <label for="confirm_new_password" data-i18n="pages.settings.confirm_new_password_label">确认新密码</label>
                             <input type="password" id="confirm_new_password" name="confirm_new_password"
                                 autocomplete="new-password">
                         </div>
                         <div class="form-actions">
                             <button type="submit" class="btn btn-primary"><i class="fa-solid fa-key"></i>
-                                <span>重置密码</span></button>
+                                <span data-i18n="pages.settings.reset_password_btn">重置密码</span></button>
                         </div>
                     </form>
                 </section>
@@ -89,6 +90,7 @@
 
     <div id="toast-container" class="toast-container"></div>
     <div id="dialog-container"></div>
+    <div id="modal-container"></div> <!-- 模态框容器也应在此页面存在，因为notifications.js会用到 -->
 
     <script type="module" src="js/common.js"></script>
     <script type="module" src="js/settings.js"></script>