diff --git a/web/admin/src/router/index.ts b/web/admin/src/router/index.ts
index 771cb2d..2af1bfa 100644
--- a/web/admin/src/router/index.ts
+++ b/web/admin/src/router/index.ts
@@ -3,6 +3,7 @@ import type { RouteRecordRaw } from 'vue-router'
 import adminRoutes from './admin'
 import { useAuthStore } from '@/stores/auth'
 import { shouldRefresh, getRefreshToken } from '@/utils/request'
+import { useSiteName } from '@/composables/useSiteName'
 import axios from 'axios'
 
 const routes: RouteRecordRaw[] = [
@@ -42,12 +43,16 @@ async function checkSetupStatus(): Promise<boolean> {
   return systemInitialized === true
 }
 
+const { siteName, fetchSiteName } = useSiteName()
+
 router.beforeEach(async (to) => {
   const authStore = useAuthStore()
   authStore.loadFromStorage()
 
   if (to.meta.title) {
-    document.title = `${to.meta.title as string} — Team-API`
+    fetchSiteName()
+    const name = siteName.value || 'Team-API'
+    document.title = `${to.meta.title as string} — ${name}`
   }
 
   if (to.name === 'AdminSetup') {
diff --git a/web/admin/src/views/AdminLayout.vue b/web/admin/src/views/AdminLayout.vue
index aab0cb1..d2bdf66 100644
--- a/web/admin/src/views/AdminLayout.vue
+++ b/web/admin/src/views/AdminLayout.vue
@@ -6,6 +6,7 @@ import axios from 'axios'
 import { marked } from 'marked'
 import request from '@/utils/request'
 import { useWatermark } from '@/composables/useWatermark'
+import { useSiteName } from '@/composables/useSiteName'
 import {
   IconDashboard,
   IconUserGroup,
@@ -37,6 +38,7 @@ import { useAuthStore } from '@/stores/auth'
 const router = useRouter()
 const route = useRoute()
 const authStore = useAuthStore()
+const { siteName } = useSiteName()
 
 const collapsed = ref(false)
 const mobileMenuOpen = ref(false)
@@ -445,10 +447,10 @@ onUnmounted(() => {
     <!-- Desktop Sidebar -->
     <div class="admin-sidebar" :class="{ 'admin-sidebar--collapsed': collapsed }">
       <div class="admin-sidebar__logo" @click="openUpdateModal" style="cursor: pointer;">
-        <div class="admin-sidebar__logo-icon">T</div>
+        <img src="/favicon.png" alt="Logo" class="admin-sidebar__logo-icon" />
         <Transition name="fade">
           <span v-if="!collapsed" class="admin-sidebar__logo-text">
-            Team-API
+            {{ siteName || 'Team-API' }}
             <span class="admin-sidebar__version">
               {{ appVersion === 'dev' ? 'dev' : 'v' + appVersion }}
               <span v-if="hasUpdate" class="admin-sidebar__update-dot" title="有新版本可用"></span>
@@ -526,8 +528,8 @@ onUnmounted(() => {
       <Transition name="slide">
         <div v-if="mobileMenuOpen" class="admin-sidebar admin-sidebar--mobile">
           <div class="admin-sidebar__logo">
-            <div class="admin-sidebar__logo-icon">T</div>
-            <span class="admin-sidebar__logo-text">Team-API</span>
+            <img src="/favicon.png" alt="Logo" class="admin-sidebar__logo-icon" />
+            <span class="admin-sidebar__logo-text">{{ siteName || 'Team-API' }}</span>
           </div>
           <div class="admin-sidebar__menu">
             <div v-for="group in menuGroups" :key="group.key">
@@ -775,17 +777,10 @@ onUnmounted(() => {
 
 .admin-sidebar__logo-icon {
   flex-shrink: 0;
-  display: flex;
-  align-items: center;
-  justify-content: center;
   width: 32px;
   height: 32px;
-  background: var(--ta-primary-gradient);
   border-radius: 8px;
-  color: #fff;
-  font-size: 16px;
-  font-weight: 700;
-  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.4);
+  object-fit: contain;
 }
 
 .admin-sidebar__logo-text {
diff --git a/web/admin/src/views/LoginPage.vue b/web/admin/src/views/LoginPage.vue
index bf426c7..ec4e8d5 100644
--- a/web/admin/src/views/LoginPage.vue
+++ b/web/admin/src/views/LoginPage.vue
@@ -7,12 +7,14 @@ import { useAuthStore } from '@/stores/auth'
 import { extractApiError } from '@/utils/request'
 import request from '@/utils/request'
 import SlideCaptcha from '@/components/SlideCaptcha.vue'
+import { useSiteName } from '@/composables/useSiteName'
 
 const router = useRouter()
 const route = useRoute()
 const authStore = useAuthStore()
 const formRef = ref<FormInstance | null>(null)
 const loading = ref(false)
+const { siteName } = useSiteName()
 
 const form = reactive({
   username: '',
@@ -94,8 +96,8 @@ async function handle2FAVerify() {
       <div class="login-orb login-orb--3" />
 
       <div class="login-brand__content">
-        <img src="/favicon.png" alt="Team-API" class="login-brand__logo" />
-        <h1 class="login-brand__title">Team-API</h1>
+        <img src="/favicon.png" :alt="siteName" class="login-brand__logo" />
+        <h1 class="login-brand__title">{{ siteName }}</h1>
         <p class="login-brand__desc">多租户 大模型 API 网关管理平台</p>
 
         <div class="login-brand__features">
@@ -132,8 +134,8 @@ async function handle2FAVerify() {
     <div class="login-form-wrapper">
       <!-- Mobile Brand (hidden on desktop) -->
       <div class="login-mobile-brand">
-        <img src="/favicon.png" alt="Team-API" class="login-brand__logo" />
-        <span class="login-mobile-brand__name">Team-API</span>
+        <img src="/favicon.png" :alt="siteName" class="login-brand__logo" />
+        <span class="login-mobile-brand__name">{{ siteName }}</span>
       </div>
 
       <div class="login-form glass animate-slideUp">
diff --git a/web/admin/src/views/system/settings/GeneralTab.vue b/web/admin/src/views/system/settings/GeneralTab.vue
index 1955d14..7823a12 100644
--- a/web/admin/src/views/system/settings/GeneralTab.vue
+++ b/web/admin/src/views/system/settings/GeneralTab.vue
@@ -12,7 +12,7 @@ const values = useFormValues()
 				<AFormItem label="站点名称">
 					<AInput v-model="values['site_name']" placeholder="Team-API" />
 				</AFormItem>
-				<AFormItem label="站点描述">
+				<AFormItem label="站点描述" class="field-full">
 					<AInput v-model="values['site_description']" placeholder="简短描述平台用途" />
 				</AFormItem>
 				<AFormItem label="租户控制台地址" help="用于生成邀请链接等，如 https://console.example.com" class="field-full">
diff --git a/web/tenant/src/components/layout/AuthLayout.vue b/web/tenant/src/components/layout/AuthLayout.vue
index 7c42111..50ba12e 100644
--- a/web/tenant/src/components/layout/AuthLayout.vue
+++ b/web/tenant/src/components/layout/AuthLayout.vue
@@ -29,10 +29,10 @@
 			<!-- Logo/Brand -->
 			<div class="mb-8 text-center">
 				<div class="flex items-center gap-3 justify-center">
-					<img src="/favicon.png" alt="Team-API" class="h-10 w-10 rounded-lg object-contain" />
-					<h1 class="text-gradient text-2xl font-bold leading-tight">Team API</h1>
+					<img src="/favicon.png" :alt="siteName" class="h-10 w-10 rounded-lg object-contain" />
+					<h1 class="text-gradient text-2xl font-bold leading-tight">{{ siteName }}</h1>
 				</div>
-				<p class="mt-3 text-sm text-gray-500">开源自托管的多租户 大模型 API 网关平台</p>
+				<p class="mt-3 text-sm text-gray-500">{{ publicSettings.site_description || '开源自托管的多租户 大模型 API 网关平台' }}</p>
 			</div>
 
 			<!-- Card Container -->
@@ -59,7 +59,10 @@ import { ref, onMounted, onBeforeUnmount } from 'vue'
 import Icon from '../common/Icon.vue'
 import AnnouncementBanner from '../common/AnnouncementBanner.vue'
 import request from '@/utils/request'
+import { usePublicSettings } from '@/composables/usePublicSettings'
 
+const { settings: publicSettings } = usePublicSettings()
+const siteName = publicSettings.value.site_name || 'Team-API'
 const announcements = ref<any[]>([])
 let timer: ReturnType<typeof setInterval> | null = null
 
diff --git a/web/tenant/src/composables/useSeo.ts b/web/tenant/src/composables/useSeo.ts
index ca514d8..9e19b1e 100644
--- a/web/tenant/src/composables/useSeo.ts
+++ b/web/tenant/src/composables/useSeo.ts
@@ -3,13 +3,14 @@ import { useSeoMeta, useHead } from '@unhead/vue'
 interface SeoOptions {
 	title: string
 	description: string
+	siteName?: string
 	keywords?: string
 	canonicalUrl?: string
 	ogImage?: string
 	ogType?: 'website' | 'article' | 'profile' | 'book'
 }
 
-const SITE_NAME = 'Team-API'
+const DEFAULT_SITE_NAME = 'Team-API'
 const DEFAULT_OG_IMAGE = '/og-image.png'
 
 /**
@@ -20,6 +21,7 @@ export function useSeo(options: SeoOptions) {
 	const {
 		title,
 		description,
+		siteName = DEFAULT_SITE_NAME,
 		keywords,
 		canonicalUrl,
 		ogImage = DEFAULT_OG_IMAGE,
@@ -33,7 +35,7 @@ export function useSeo(options: SeoOptions) {
 		ogDescription: description,
 		keywords,
 		ogType,
-		ogSiteName: SITE_NAME,
+		ogSiteName: siteName,
 		ogLocale: 'zh_CN',
 		ogImage,
 		twitterCard: 'summary_large_image',
diff --git a/web/tenant/src/router/index.ts b/web/tenant/src/router/index.ts
index cb639ad..63974be 100644
--- a/web/tenant/src/router/index.ts
+++ b/web/tenant/src/router/index.ts
@@ -3,6 +3,7 @@ import type { RouteRecordRaw } from 'vue-router'
 import tenantRoutes from './tenant'
 import { useTenantAuthStore } from '@/stores/tenant-auth'
 import { shouldRefresh, getRefreshToken } from '@/utils/request'
+import { usePublicSettings } from '@/composables/usePublicSettings'
 
 const routes: RouteRecordRaw[] = [
 	{
@@ -33,7 +34,9 @@ router.beforeEach((to) => {
 	tenantAuthStore.loadFromStorage()
 
 	if (to.meta.title) {
-		document.title = to.name === 'TenantHome' ? to.meta.title : `${to.meta.title} — Team-API`
+		const { settings: publicSettings } = usePublicSettings()
+		const siteName = publicSettings.value.site_name || 'Team-API'
+		document.title = to.name === 'TenantHome' ? `${siteName} — 企业级多租户大模型 API 网关平台 | 开源自托管` : `${to.meta.title} — ${siteName}`
 	}
 
 	// Auth pages — always allow
diff --git a/web/tenant/src/views/Layout.vue b/web/tenant/src/views/Layout.vue
index 5e93f6a..70a0b01 100644
--- a/web/tenant/src/views/Layout.vue
+++ b/web/tenant/src/views/Layout.vue
@@ -177,6 +177,9 @@ onMounted(async () => {
 	}
 
 	await fetchPublicSettings()
+	if (publicSettings.site_name && route.meta.title) {
+		document.title = `${pageTitle.value} — ${publicSettings.site_name}`
+	}
 	if (publicSettings.demo_mode) {
 		demoMessage.value = publicSettings.demo_message || '演示环境，数据不可修改'
 		mountWatermark(document.body)
diff --git a/web/tenant/src/views/auth/RegisterPage.vue b/web/tenant/src/views/auth/RegisterPage.vue
index 7c44ab4..7422a2c 100644
--- a/web/tenant/src/views/auth/RegisterPage.vue
+++ b/web/tenant/src/views/auth/RegisterPage.vue
@@ -5,7 +5,7 @@ import { useTenantAuthStore } from '@/stores/tenant-auth'
 import { usePublicSettings } from '@/composables/usePublicSettings'
 import AuthLayout from '@/components/layout/AuthLayout.vue'
 import SlideCaptcha from '@/components/common/SlideCaptcha.vue'
-import Turnstile from '@/components/common/Turnstile.vue
+import Turnstile from '@/components/common/Turnstile.vue'
 import Icon from '@/components/common/Icon.vue'
 import request from '@/utils/request'
 import { extractApiError } from '@/utils/request'
diff --git a/web/tenant/src/views/landing/LandingPage.vue b/web/tenant/src/views/landing/LandingPage.vue
index 88fe174..3fb67e5 100644
--- a/web/tenant/src/views/landing/LandingPage.vue
+++ b/web/tenant/src/views/landing/LandingPage.vue
@@ -5,8 +5,8 @@
 			<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
 				<div class="flex items-center justify-between h-16">
 					<div class="flex items-center gap-2.5">
-						<img src="/favicon.png" alt="Team-API" class="h-8 w-8 rounded-lg" />
-						<span class="text-lg font-bold tracking-tight" :class="isScrolled ? 'text-gray-900' : 'text-white'">Team-API</span>
+						<img src="/favicon.png" :alt="siteName" class="h-8 w-8 rounded-lg" />
+						<span class="text-lg font-bold tracking-tight" :class="isScrolled ? 'text-gray-900' : 'text-white'">{{ siteName }}</span>
 					</div>
 					<div class="flex items-center gap-2">
 						<a href="https://github.com/qianfree/team-api" target="_blank" rel="noopener noreferrer"
@@ -240,7 +240,7 @@
 			<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
 				<div class="flex flex-col sm:flex-row items-center justify-between gap-4">
 					<div class="flex items-center gap-2">
-						<img src="/favicon.png" alt="Team-API" class="h-5 w-5 rounded" />
+						<img src="/favicon.png" :alt="siteName" class="h-5 w-5 rounded" />
 						<span class="text-xs text-gray-600">&copy; 2026 qianfree. Released under AGPL-3.0.</span>
 					</div>
 					<a href="https://github.com/qianfree/team-api" target="_blank" rel="noopener noreferrer"
@@ -257,6 +257,10 @@
 import { ref, onMounted, onUnmounted } from 'vue'
 import { useSeo } from '@/composables/useSeo'
 import { useHead } from '@unhead/vue'
+import { usePublicSettings } from '@/composables/usePublicSettings'
+
+const { settings: publicSettings } = usePublicSettings()
+const siteName = publicSettings.value.site_name || 'Team-API'
 
 // Nav scroll state
 const isScrolled = ref(false)
@@ -275,8 +279,9 @@ const activeScenario = ref(0)
 
 // SEO
 useSeo({
-	title: 'Team-API — 一个 API 接入所有大模型 | 企业级多租户 AI 网关',
-	description: 'Team-API 是开源自托管的企业级多租户大模型 API 网关平台。聚合 OpenAI、Claude、Gemini、DeepSeek 等 40+ 供应商，内置计费引擎、团队管理、用量审计与智能渠道调度。完全兼容 OpenAI SDK，只需修改 base_url 即可接入。',
+	title: `${siteName} — 一个 API 接入所有大模型 | 企业级多租户 AI 网关`,
+	description: publicSettings.value.site_description || `${siteName} 是开源自托管的企业级多租户大模型 API 网关平台。聚合 OpenAI、Claude、Gemini、DeepSeek 等 40+ 供应商，内置计费引擎、团队管理、用量审计与智能渠道调度。完全兼容 OpenAI SDK，只需修改 base_url 即可接入。`,
+	siteName,
 	keywords: 'Team-API, 大模型网关, API Gateway, 多租户, OpenAI, Claude, Gemini, DeepSeek, 阿里云百炼, 百度文心, 腾讯混元, 智谱AI, AI代理, LLM Gateway, 开源, 自托管, 计费引擎, 团队管理, API管理, SSE流式, 渠道调度',
 	canonicalUrl: 'https://team-api.net/',
 })
@@ -288,8 +293,8 @@ useHead({
 			innerHTML: JSON.stringify({
 				'@context': 'https://schema.org',
 				'@type': 'SoftwareApplication',
-				name: 'Team-API',
-				description: '企业级多租户大模型 API 网关平台，聚合 40+ 大模型供应商，内置计费引擎、团队管理、用量审计与渠道调度。',
+				name: siteName,
+				description: publicSettings.value.site_description || '企业级多租户大模型 API 网关平台，聚合 40+ 大模型供应商，内置计费引擎、团队管理、用量审计与渠道调度。',
 				url: 'https://github.com/qianfree/team-api',
 				applicationCategory: 'DeveloperApplication',
 				operatingSystem: 'Linux, macOS, Windows',
@@ -311,7 +316,7 @@ useHead({
 			innerHTML: JSON.stringify({
 				'@context': 'https://schema.org',
 				'@type': 'Organization',
-				name: 'Team-API',
+				name: siteName,
 				url: 'https://github.com/qianfree/team-api',
 				logo: 'https://team-api.net/favicon.png',
 				sameAs: ['https://github.com/qianfree/team-api'],
@@ -322,9 +327,9 @@ useHead({
 			innerHTML: JSON.stringify({
 				'@context': 'https://schema.org',
 				'@type': 'WebSite',
-				name: 'Team-API',
+				name: siteName,
 				url: 'https://team-api.net/',
-				description: '企业级多租户大模型 API 网关平台',
+				description: publicSettings.value.site_description || '企业级多租户大模型 API 网关平台',
 				potentialAction: {
 					'@type': 'SearchAction',
 					target: 'https://github.com/qianfree/team-api/search?q={search_term_string}',