diff --git a/assets/admin/src/api/modules/tools.js b/assets/admin/src/api/modules/tools.js
index b575a512..7da837bf 100644
--- a/assets/admin/src/api/modules/tools.js
+++ b/assets/admin/src/api/modules/tools.js
@@ -24,5 +24,4 @@ export const toolsApiMethods = {
   resetDomain(domain) { return this.request(`/settings/reset/${domain}`, { method: 'POST' }) },
   resetAllSettings() { return this.request('/settings/reset-all', { method: 'POST' }) },
   getHealthCheck() { return this.request('/settings/health') },
-  getMigrationStatus() { return this.request('/settings/migration-status') },
 }
diff --git a/assets/admin/src/pages/SiteSettings.vue b/assets/admin/src/pages/SiteSettings.vue
index b1c6ff96..5dc1a724 100644
--- a/assets/admin/src/pages/SiteSettings.vue
+++ b/assets/admin/src/pages/SiteSettings.vue
@@ -135,9 +135,8 @@ const message = useMessage()
 const loading = ref(true)
 const saving = ref(false)
 
-// 基础设置（aksrt_basic_settings）
-// 后端 /settings/basic 已经做了部分合并，本接口只发送基础字段；
-// auth 相关字段由 /settings/auth 独立维护，互不影响。
+// 基础设置（canonical: aksrt_settings）
+// 后端 /settings/basic 返回基础字段；auth 相关字段由 /settings/auth 独立维护。
 const basic = reactive({
   comment_enabled: true,
   comment_requires_registration: false,
diff --git a/assets/admin/src/pages/theme/ThemeInfoPage.vue b/assets/admin/src/pages/theme/ThemeInfoPage.vue
index 4438a59c..50899ed3 100644
--- a/assets/admin/src/pages/theme/ThemeInfoPage.vue
+++ b/assets/admin/src/pages/theme/ThemeInfoPage.vue
@@ -1,6 +1,6 @@
 <template>
   <div class="aksrt-page-container">
-    <PageHeader title="主题信息" desc="主题版本、运行环境、已启用模块、迁移状态和关键系统信息。" />
+    <PageHeader title="主题信息" desc="主题版本、运行环境、已启用模块和关键系统信息。" />
 
     <div v-if="loading" class="aksrt-theme-info__loading">
       <n-spin size="medium" />
@@ -24,9 +24,6 @@
           <n-descriptions-item label="数据库 Schema">
             <n-tag type="info" size="small">{{ info.dbSchemaVersion }}</n-tag>
           </n-descriptions-item>
-          <n-descriptions-item label="设置迁移版本">
-            <n-tag type="info" size="small">{{ info.settingsMigrationVersion || '未迁移' }}</n-tag>
-          </n-descriptions-item>
           <n-descriptions-item label="邮箱验证回填">
             <n-tag :type="info.emailBackfillDone ? 'success' : 'default'" size="small">
               {{ info.emailBackfillDone ? '已完成' : '未触发' }}
@@ -135,7 +132,6 @@ const info = ref({
   wpVersion: '',
   phpVersion: '',
   dbSchemaVersion: '',
-  settingsMigrationVersion: '',
   emailBackfillDone: false,
   siteUrl: '',
   apiUrl: '',
@@ -181,7 +177,6 @@ onMounted(async () => {
       wpVersion: data.wp_version || '',
       phpVersion: data.php_version || '',
       dbSchemaVersion: data.db_schema_version || '',
-      settingsMigrationVersion: data.settings_migration_version || '',
       emailBackfillDone: !!data.email_backfill_done,
       siteUrl: data.site_url || window.aksrtAdminData?.siteUrl || '',
       apiUrl: data.api_url || window.aksrtAdminData?.apiUrl || '',
diff --git a/assets/admin/src/pages/tools/ToolsMigration.vue b/assets/admin/src/pages/tools/ToolsMigration.vue
deleted file mode 100644
index f8137f8c..00000000
--- a/assets/admin/src/pages/tools/ToolsMigration.vue
+++ /dev/null
@@ -1,111 +0,0 @@
-<template>
-  <div class="aksrt-page-container">
-    <PageHeader
-      title="迁移状态"
-      desc="查看数据库 schema 版本、设置迁移版本和迁移日志，方便发布前确认历史兼容层状态。"
-    >
-      <template #actions>
-        <n-space>
-          <n-button quaternary @click="go('/tools/health')">健康检查</n-button>
-          <n-button quaternary @click="go('/tools/import-export')">导入导出</n-button>
-        </n-space>
-      </template>
-    </PageHeader>
-
-    <n-spin :show="loading" style="width: 100%; min-height: 200px;">
-      <n-card class="aksrt-section-card">
-        <div class="aksrt-section-header">
-          <h3>版本摘要</h3>
-        </div>
-        <n-space>
-          <n-tag round type="info">DB Schema：{{ status.schema_version || '0.0.0' }}</n-tag>
-          <n-tag round type="info">Settings Migration：{{ status.migration_version || '0.0.0' }}</n-tag>
-          <n-tag round :type="logItems.length ? 'success' : 'default'">迁移日志：{{ logItems.length }} 条</n-tag>
-        </n-space>
-      </n-card>
-
-      <n-card class="aksrt-section-card">
-        <n-alert type="info" :show-icon="false">
-          迁移说明文档位于 `docs/migration-map.md`。如果这里的 schema/version 与文档记录不一致，发布前应先补齐说明。
-        </n-alert>
-      </n-card>
-
-      <n-card class="aksrt-section-card">
-        <div class="aksrt-section-header">
-          <h3>迁移日志</h3>
-        </div>
-        <div v-if="logItems.length" class="aksrt-migration-log">
-          <div v-for="(item, index) in logItems" :key="index" class="aksrt-migration-log__item">
-            <pre>{{ stringifyItem(item) }}</pre>
-          </div>
-        </div>
-        <n-empty v-else description="暂无迁移日志" />
-      </n-card>
-    </n-spin>
-  </div>
-</template>
-
-<script setup>
-import { computed, onMounted, ref } from 'vue'
-import { useRouter } from 'vue-router'
-import { useMessage } from 'naive-ui'
-import api from '@/api'
-import PageHeader from '@/components/PageHeader.vue'
-
-const router = useRouter()
-const message = useMessage()
-
-const loading = ref(true)
-const status = ref({})
-
-const logItems = computed(() => {
-  return Array.isArray(status.value.migration_log) ? status.value.migration_log : []
-})
-
-function go(path) {
-  router.push(path)
-}
-
-function extractData(response) {
-  return response?.data ?? response ?? {}
-}
-
-function stringifyItem(item) {
-  if (typeof item === 'string') {
-    return item
-  }
-  return JSON.stringify(item, null, 2)
-}
-
-async function load() {
-  loading.value = true
-  try {
-    status.value = extractData(await api.getMigrationStatus())
-  } catch (error) {
-    message.error(error.message || '加载迁移状态失败')
-  } finally {
-    loading.value = false
-  }
-}
-
-onMounted(load)
-</script>
-
-<style scoped>
-.aksrt-migration-log {
-  display: grid;
-  gap: 12px;
-}
-
-.aksrt-migration-log__item pre {
-  margin: 0;
-  padding: 12px 14px;
-  border-radius: 12px;
-  background: #101828;
-  color: #d0d7e2;
-  font-size: 12px;
-  line-height: 1.7;
-  white-space: pre-wrap;
-  word-break: break-word;
-}
-</style>
diff --git a/assets/admin/src/router/component-loaders/tools.js b/assets/admin/src/router/component-loaders/tools.js
index b7d1fdbc..257fbf4d 100644
--- a/assets/admin/src/router/component-loaders/tools.js
+++ b/assets/admin/src/router/component-loaders/tools.js
@@ -1,7 +1,6 @@
 export const toolsPageLoaders = {
   ToolsImportExport: () => import('@/pages/tools/ToolsImportExport.vue'),
   ToolsHealth: () => import('@/pages/tools/ToolsHealth.vue'),
-  ToolsMigration: () => import('@/pages/tools/ToolsMigration.vue'),
   ToolsEmailRollback: () => import('@/pages/tools/ToolsEmailRollback.vue'),
   ToolsUpdate: () => import('@/pages/tools/ToolsUpdate.vue'),
 }
diff --git a/assets/admin/src/schema/sections/tools/migration.js b/assets/admin/src/schema/sections/tools/migration.js
deleted file mode 100644
index be791aba..00000000
--- a/assets/admin/src/schema/sections/tools/migration.js
+++ /dev/null
@@ -1,19 +0,0 @@
-export const migrationSchema = {
-  key: 'tools.migration',
-  title: '数据迁移',
-  icon: 'fas fa-database',
-  description: '数据库结构迁移和版本升级。',
-  defaults: {},
-  groups: [
-    {
-      key: 'status',
-      title: '迁移状态',
-      icon: 'fas fa-info-circle',
-      fields: [
-        { key: 'current_version', label: '当前版本', type: 'display' },
-        { key: 'pending_migrations', label: '待执行迁移', type: 'display' },
-        { key: 'run_migration', label: '执行迁移', type: 'button', help: '手动触发数据库迁移' },
-      ],
-    },
-  ],
-}
diff --git a/inc/classes/admin/class-aksrt-admin-import-export-controller.php b/inc/classes/admin/class-aksrt-admin-import-export-controller.php
index c8594592..24288c6f 100644
--- a/inc/classes/admin/class-aksrt-admin-import-export-controller.php
+++ b/inc/classes/admin/class-aksrt-admin-import-export-controller.php
@@ -71,13 +71,6 @@ class AKSRT_Admin_Import_Export_Controller extends AKSRT_Admin_Controller_Base {
             'permission_callback' => [$this, 'check_permission'],
         ]);
 
-        // Migration status
-        register_rest_route(self::API_NAMESPACE, '/settings/migration-status', [
-            'methods'             => 'GET',
-            'callback'            => [$this, 'rest_migration_status'],
-            'permission_callback' => [$this, 'check_permission'],
-        ]);
-
         // Schema introspection (for frontend to discover available fields)
         register_rest_route(self::API_NAMESPACE, '/settings/schema/(?P<domain>[a-z_]+)', [
             'methods'             => 'GET',
@@ -401,8 +394,4 @@ class AKSRT_Admin_Import_Export_Controller extends AKSRT_Admin_Controller_Base {
 
         return $this->success(['checks' => $checks]);
     }
-
-    /**
-     * Migration status — reports schema version and pending migrations.
-     */
 }
diff --git a/inc/classes/admin/import-export-traits/trait-aksrt-admin-import-export-controller-part-1.php b/inc/classes/admin/import-export-traits/trait-aksrt-admin-import-export-controller-part-1.php
index bc9b4a00..587cd182 100644
--- a/inc/classes/admin/import-export-traits/trait-aksrt-admin-import-export-controller-part-1.php
+++ b/inc/classes/admin/import-export-traits/trait-aksrt-admin-import-export-controller-part-1.php
@@ -3,17 +3,6 @@ defined('ABSPATH') || exit;
 
 trait AKSRT_Admin_Import_Export_Controller_Part_1 {
 
-    public function rest_migration_status(WP_REST_Request $request): WP_REST_Response {
-        // Settings migration UI/runtime has been removed. Keep the route for old SPA chunks
-        // until the next full admin rebuild, but return an empty retired payload.
-        return $this->success([
-            'schema_version' => get_option('aksrt_db_schema_version', '0.0.0'),
-            'migration_version' => 'retired',
-            'migration_log'  => [],
-            'retired' => true,
-        ]);
-    }
-
     /**
      * Get the schema definition for a domain (for frontend introspection).
      */
diff --git a/inc/classes/admin/schema/class-aksrt-admin-schema-global.php b/inc/classes/admin/schema/class-aksrt-admin-schema-global.php
index f0503de9..86083a36 100644
--- a/inc/classes/admin/schema/class-aksrt-admin-schema-global.php
+++ b/inc/classes/admin/schema/class-aksrt-admin-schema-global.php
@@ -43,7 +43,7 @@ class AKSRT_Admin_Schema_Global {
                     'key'        => 'logo',
                     'title'      => 'LOGO图像',
                     'version'    => '1.0.0',
-                    'option_key' => 'aksrt_seo_settings',
+                    'option_key' => 'aksrt_settings',
                     'groups'     => [
                         ['key' => 'logo', 'title' => 'Logo 设置', 'fields' => [
                             ['key' => 'site_logo', 'label' => '站点 Logo', 'type' => 'media', 'default' => ''],
diff --git a/inc/classes/admin/schema/class-aksrt-admin-schema-tools-migration.php b/inc/classes/admin/schema/class-aksrt-admin-schema-tools-migration.php
deleted file mode 100644
index 306c1fc3..00000000
--- a/inc/classes/admin/schema/class-aksrt-admin-schema-tools-migration.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-/**
- * AKSRT_Admin_Schema_Tools_Migration section schema.
- *
- * @package AKSRT
- */
-
-defined('ABSPATH') || exit;
-
-class AKSRT_Admin_Schema_Tools_Migration {
-
-    public static function build(): array {
-        return [
-            'key'        => 'migration',
-            'title'      => '数据迁移',
-            'version'    => '1.0.0',
-            'option_key' => 'aksrt_settings',
-            'groups'     => [
-                ['key' => 'status', 'title' => '迁移状态', 'fields' => [
-                    ['key' => 'current_version', 'label' => '当前版本', 'type' => 'display'],
-                    ['key' => 'pending_migrations', 'label' => '待执行迁移', 'type' => 'display'],
-                    ['key' => 'run_migration', 'label' => '执行迁移', 'type' => 'button', 'help' => '手动触发数据库迁移'],
-                ]],
-            ],
-        ];
-    }
-}
diff --git a/inc/classes/class-aksrt-settings-migration.php b/inc/classes/class-aksrt-settings-migration.php
deleted file mode 100644
index 64b9d23d..00000000
--- a/inc/classes/class-aksrt-settings-migration.php
+++ /dev/null
@@ -1,262 +0,0 @@
-<?php
-/**
- * AKSRT Settings Migration
- *
- * Handles AKSRT's own schema evolution.
- * This migration layer no longer backfills or mirrors deprecated option aliases.
- *
- * @package AKSRT
- */
-
-defined('ABSPATH') || exit;
-
-class AKSRT_Settings_Migration {
-
-    private static $instance = null;
-
-    /**
-     * Current migration schema version.
-     */
-    const MIGRATION_VERSION = '1.3.0';
-
-    /**
-     * Option key that stores the current migration version.
-     */
-    const VERSION_KEY = 'aksrt_settings_migration_version';
-
-    /**
-     * Option key that stores migration log entries.
-     */
-    const LOG_KEY = 'aksrt_settings_migration_log';
-
-    public static function get_instance(): self {
-        if (null === self::$instance) self::$instance = new self();
-        return self::$instance;
-    }
-
-    /**
-     * Run pending migrations.
-     * Called on theme activation and admin_init.
-     */
-    public function maybe_migrate(): void {
-        $current = get_option(self::VERSION_KEY, '0.0.0');
-
-        if (version_compare($current, self::MIGRATION_VERSION, '>=')) {
-            return; // Already up to date
-        }
-
-        $log = $this->get_log();
-        $schema_provider = AKSRT_Admin_Schema_Provider::get_instance();
-
-        // Run migrations in order
-        $this->migrate_v1_0_0($schema_provider, $log);
-        $this->migrate_v1_2_0($log);
-        $this->migrate_v1_3_0($log);
-
-        // Update version
-        update_option(self::VERSION_KEY, self::MIGRATION_VERSION);
-        $log[] = [
-            'version'   => self::MIGRATION_VERSION,
-            'timestamp' => gmdate('Y-m-d H:i:s'),
-            'action'    => 'migration_complete',
-        ];
-        update_option(self::LOG_KEY, $log);
-    }
-
-    /**
-     * Get the migration log.
-     *
-     * @return array
-     */
-    public function get_log(): array {
-        $log = get_option(self::LOG_KEY, []);
-        return is_array($log) ? $log : [];
-    }
-
-    /**
-     * Get current migration version.
-     *
-     * @return string
-     */
-    public function get_version(): string {
-        return get_option(self::VERSION_KEY, '0.0.0');
-    }
-
-    /* ------------------------------------------------------------------ */
-    /*  Migration: v1.0.0                                                  */
-    /*  Maps old option keys to new schema-managed domains.                */
-    /* ------------------------------------------------------------------ */
-
-    private function migrate_v1_0_0(AKSRT_Admin_Schema_Provider $schema_provider, array &$log): void {
-        // 1. Migrate aksrt_basic_settings fields into the new global domain
-        $this->migrate_basic_to_global($schema_provider, $log);
-
-        // 2. Migrate aksrt_seo_settings to the new seo domain (already a standalone key)
-        //    No action needed — it's already stored under aksrt_seo_settings.
-
-        // 3. Ensure all domain options exist with defaults
-        foreach ($schema_provider->get_domain_keys() as $domain) {
-            $option_key = $schema_provider->get_option_key($domain);
-            $existing = get_option($option_key);
-            if ($existing === false) {
-                $defaults = $schema_provider->get_defaults($domain);
-                if (!empty($defaults)) {
-                    add_option($option_key, $defaults);
-                    $log[] = [
-                        'version' => '1.0.0',
-                        'action'  => 'created_domain_defaults',
-                        'domain'  => $domain,
-                    ];
-                }
-            }
-        }
-    }
-
-    /**
-     * Migrate fields from aksrt_basic_settings to the new global domain.
-     *
-     * The old aksrt_basic_settings contains many fields from different domains
-     * (auth, comment, avatar, etc.). We selectively map them to the new structure
-     * without deleting the original option.
-     */
-    private function migrate_basic_to_global(AKSRT_Admin_Schema_Provider $schema_provider, array &$log): void {
-        $old = get_option('aksrt_basic_settings', []);
-        if (!is_array($old) || empty($old)) return;
-
-        // Map old keys to new global domain keys
-        $field_map = [
-            'comment_enabled'             => 'comment_enabled',
-            'comments_per_page'           => 'comments_per_page',
-            'comment_requires_registration' => 'comment_requires_registration',
-            'lazy_load'                   => 'lazy_load',
-            'avatar_source'               => 'avatar_source',
-            'icp_filing'                  => 'icp_filing',
-            'footer_text'                 => 'footer_text',
-            'copyright_year'              => 'copyright_year',
-            'registration_enabled'        => 'registration_enabled',
-            'email_verification'          => 'email_verification',
-        ];
-
-        $new_data = [];
-        foreach ($field_map as $old_key => $new_key) {
-            if (isset($old[$old_key])) {
-                $new_data[$new_key] = $old[$old_key];
-            }
-        }
-
-        if (!empty($new_data)) {
-            $existing = get_option('aksrt_basic_settings', []);
-            if (!is_array($existing)) $existing = [];
-            // Merge: new mapped values take precedence only if not already set
-            $merged = wp_parse_args($existing, $new_data);
-            update_option('aksrt_basic_settings', $merged);
-
-            $log[] = [
-                'version'  => '1.0.0',
-                'action'   => 'migrated_basic_to_global',
-                'fields'   => array_keys($new_data),
-                'migrated' => count($new_data),
-            ];
-        }
-    }
-
-    private function migrate_v1_2_0(array &$log): void {
-        $settings = get_option('aksrt_settings', []);
-        if (!is_array($settings) || empty($settings)) {
-            return;
-        }
-
-        $map = [
-            'header_slider_search' => 'header_components_search_enabled',
-            'header_slider_cards' => 'header_components_cards_enabled',
-            'header_slider_nav_color' => 'header_components_nav_color',
-            'header_slider_show' => 'header_components_show_on',
-            'header_slider_show_type' => 'header_components_device_visibility',
-            'header_slider_filter_blur' => 'header_components_filter_blur_devices',
-            'header_slider_card_show' => 'header_components_card_show_devices',
-            'header_card_shared_bg' => 'header_components_card_shared_bg',
-            'header_card_blur' => 'header_components_card_blur',
-            'header_card_icon_shape' => 'header_components_card_icon_shape',
-            'header_icon_cards' => 'header_components_icon_cards',
-            'header_slider_search_pc' => 'header_components_search_pc',
-            'header_slider_search_mobile' => 'header_components_search_mobile',
-            'header_slider_search_show_keywords' => 'header_components_search_show_keywords',
-            'header_slider_search_popular_limit' => 'header_components_search_popular_limit',
-            'header_slider_search_show_input_cat' => 'header_components_search_show_input_cat',
-            'header_slider_search_show_type' => 'header_components_search_show_type',
-        ];
-
-        $migrated = [];
-        foreach ($map as $old_key => $new_key) {
-            if (array_key_exists($old_key, $settings) && !array_key_exists($new_key, $settings)) {
-                $settings[$new_key] = $settings[$old_key];
-                $migrated[] = $old_key;
-            }
-            if (array_key_exists($old_key, $settings)) {
-                unset($settings[$old_key]);
-            }
-        }
-
-        if (!empty($migrated)) {
-            update_option('aksrt_settings', $settings);
-            $log[] = [
-                'version'  => '1.2.0',
-                'action'   => 'renamed_header_components_keys',
-                'migrated' => $migrated,
-            ];
-        }
-    }
-
-    private function migrate_v1_3_0(array &$log): void {
-        $settings = get_option('aksrt_settings', []);
-        if (!is_array($settings) || empty($settings)) {
-            return;
-        }
-
-        $map = [
-            'homepage_hero_enabled' => 'homepage_module_hero_enabled',
-            'homepage_banner_enabled' => 'homepage_module_banner_enabled',
-        ];
-
-        $migrated = [];
-        foreach ($map as $old_key => $new_key) {
-            if (array_key_exists($old_key, $settings) && !array_key_exists($new_key, $settings)) {
-                $settings[$new_key] = $settings[$old_key];
-                $migrated[] = $old_key;
-            }
-            if (array_key_exists($old_key, $settings)) {
-                unset($settings[$old_key]);
-            }
-        }
-
-        if (!empty($migrated)) {
-            update_option('aksrt_settings', $settings);
-            $log[] = [
-                'version'  => '1.3.0',
-                'action'   => 'renamed_homepage_module_toggle_keys',
-                'migrated' => $migrated,
-            ];
-        }
-    }
-
-    public function map_legacy_key(string $option_key): ?array {
-        $map = [
-            'aksrt_basic_settings'     => ['domain' => 'global', 'key' => 'aksrt_basic_settings'],
-            'aksrt_seo_settings'       => ['domain' => 'seo', 'key' => 'aksrt_seo_settings'],
-            'aksrt_mail_smtp'          => ['domain' => 'global', 'key' => 'aksrt_mail_smtp'],
-            'aksrt_oauth'              => ['domain' => 'users', 'key' => 'aksrt_oauth'],
-            'aksrt_moderation_config'  => ['domain' => 'permissions', 'key' => 'aksrt_moderation_config'],
-            'aksrt_captcha_config'     => ['domain' => 'permissions', 'key' => 'aksrt_captcha_config'],
-            'aksrt_credit_settings'    => ['domain' => 'users', 'key' => 'aksrt_credit_settings'],
-            'aksrt_notification_settings' => ['domain' => 'users', 'key' => 'aksrt_notification_settings'],
-            'aksrt_footer_settings'    => ['domain' => 'page_display', 'key' => 'aksrt_footer_settings'],
-            'aksrt_footer_tabbar'      => ['domain' => 'page_display', 'key' => 'aksrt_footer_tabbar'],
-            'aksrt_floating_buttons'   => ['domain' => 'global', 'key' => 'aksrt_floating_buttons'],
-            'aksrt_friend_links'       => ['domain' => 'page_display', 'key' => 'aksrt_friend_links'],
-            'aksrt_banners'            => ['domain' => 'page_display', 'key' => 'aksrt_banners'],
-            'aksrt_category_recommend' => ['domain' => 'page_display', 'key' => 'aksrt_category_recommend'],
-        ];
-
-        return $map[$option_key] ?? null;
-    }
-}
diff --git a/inc/classes/class-aksrt-settings.php b/inc/classes/class-aksrt-settings.php
index 35a5c730..727cee5d 100644
--- a/inc/classes/class-aksrt-settings.php
+++ b/inc/classes/class-aksrt-settings.php
@@ -66,7 +66,7 @@ class AKSRT_Settings {
      */
     public static function on_option_updated(string $option_name): void {
         $tracked = array_merge(
-            ['aksrt_settings', 'aksrt_basic_settings'],
+            ['aksrt_settings'],
             self::STANDALONE_OPTION_KEYS
         );
 
@@ -95,19 +95,14 @@ class AKSRT_Settings {
             return self::$cached_all;
         }
 
+        // Canonical theme settings live only in aksrt_settings.
+        // Operational configs (captcha/moderation/oauth/footer/etc.) stay standalone.
         $settings = get_option('aksrt_settings', []);
-        $seo      = get_option('aksrt_seo_settings', []);
-        $basic    = get_option('aksrt_basic_settings', []);
-
-        $merged = array_merge(
-            is_array($settings) ? $settings : [],
-            is_array($seo) ? $seo : [],
-            is_array($basic) ? $basic : []
-        );
-
-        if (!is_array($merged)) $merged = [];
-        self::$cached_all = $merged;
-        return $merged;
+        if (!is_array($settings)) {
+            $settings = [];
+        }
+        self::$cached_all = $settings;
+        return $settings;
     }
 
     /**
@@ -126,7 +121,6 @@ class AKSRT_Settings {
      * 用于导入导出完整性检查。
      */
     public const STANDALONE_OPTION_KEYS = [
-        'aksrt_seo_settings',
         'aksrt_mail_smtp',
         'aksrt_oauth',
         'aksrt_captcha_config',
@@ -267,7 +261,7 @@ class AKSRT_Settings {
         }
     }
 
-    /** 启动时对齐原生 site_icon，兼容历史已保存的 SEO favicon。 */
+    /** 启动时对齐原生 site_icon，同步自定义 site_favicon 到原生 site_icon。 */
     public static function maybe_sync_native_site_icon(): void {
         $custom = self::custom_favicon_url();
         if ($custom === '') {
diff --git a/inc/classes/settings/class-aksrt-settings-credits-payment-groups.php b/inc/classes/settings/class-aksrt-settings-credits-payment-groups.php
index 55e90e02..d1945df1 100644
--- a/inc/classes/settings/class-aksrt-settings-credits-payment-groups.php
+++ b/inc/classes/settings/class-aksrt-settings-credits-payment-groups.php
@@ -86,7 +86,7 @@ trait AKSRT_Settings_Credits_Payment_Groups {
     /**
      * 邀请注册功能总开关（独立于积分系统）。
      * 控制邀请链接、注册页邀请码字段、用户中心邀请卡片的显示。
-     * 存储在 aksrt_basic_settings['invite_registration_enabled']。
+     * 存储在 aksrt_settings（invit_code_s / invite_registration_enabled）。
      */
     public static function invite_registration_enabled(): bool {
         return AKSRT_Settings_Credits_Runtime::invite_registration_enabled();
diff --git a/inc/classes/settings/class-aksrt-settings-credits-runtime.php b/inc/classes/settings/class-aksrt-settings-credits-runtime.php
index 3d08d6f6..3298d657 100644
--- a/inc/classes/settings/class-aksrt-settings-credits-runtime.php
+++ b/inc/classes/settings/class-aksrt-settings-credits-runtime.php
@@ -232,7 +232,7 @@ class AKSRT_Settings_Credits_Runtime {
     /**
      * 邀请注册功能总开关（独立于积分系统）。
      * 控制邀请链接、注册页邀请码字段、用户中心邀请卡片的显示。
-     * 存储在 aksrt_basic_settings['invite_registration_enabled']。
+     * 存储在 aksrt_settings（invit_code_s / invite_registration_enabled）。
      */
     public static function invite_registration_enabled(): bool {
         return !empty(self::get_invite_registration_config()['enabled']);
diff --git a/inc/classes/settings/class-aksrt-settings-display-page-groups.php b/inc/classes/settings/class-aksrt-settings-display-page-groups.php
index 61e8dd2c..955e02a0 100644
--- a/inc/classes/settings/class-aksrt-settings-display-page-groups.php
+++ b/inc/classes/settings/class-aksrt-settings-display-page-groups.php
@@ -10,7 +10,7 @@ defined('ABSPATH') || exit;
 trait AKSRT_Settings_Display_Page_Groups {
 
     /**
-     * 获取 SEO 设置（从 aksrt_seo_settings option 读取）
+     * 获取 SEO 设置（从 aksrt_settings 读取）
      */
     public static function get_seo_settings(): array {
         $s = self::get_all();