diff --git a/src/assets/douyin/mengqu.png b/src/assets/douyin/mengqu.png
new file mode 100644
index 0000000..1aa9286
Binary files /dev/null and b/src/assets/douyin/mengqu.png differ
diff --git a/src/config/douyin.ts b/src/config/douyin.ts
index 291b913..4cf0af8 100644
--- a/src/config/douyin.ts
+++ b/src/config/douyin.ts
@@ -1,5 +1,4 @@
-import logo1 from '@/assets/douyin/logo_1.png'
-import logo2 from '@/assets/douyin/logo_2.png'
+import mengqu from '@/assets/douyin/mengqu.png'
 import zuozi from '@/assets/douyin/zuozi.png'
 
 export const douyinConfig = {
@@ -11,14 +10,14 @@ export const douyinConfig = {
     success: '/douyin/success',
   },
 
-  brandName: '速哇定制',
+  brandName: '萌趣小宝.ai定制',
   primaryColor: '#5fbf45',
   background: '#ffffff',
 
   images: {
-    logo: logo2,
+    logo: mengqu,
     /** 点云 Logo 段原图 */
-    logoCloud: logo1,
+    logoCloud: mengqu,
     effectRef: zuozi,
   },
 
diff --git a/src/router/index.ts b/src/router/index.ts
index 98d44a1..0d759bc 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -10,8 +10,22 @@ import * as douyinRouter from './douyin'
 import cartoon from '@/views/cartoon/index.vue'
 import {useStore} from '@/stores'
 import { config } from '@/config/config'
+import { douyinConfig } from '@/config/douyin'
 import { localStorage } from '@/utils/local-storage'
 
+const DEFAULT_FAVICON = '/douyin-logo.png'
+
+function setFavicon(href: string) {
+  let link = document.querySelector<HTMLLinkElement>('link[rel="icon"]')
+  if (!link) {
+    link = document.createElement('link')
+    link.rel = 'icon'
+    document.head.appendChild(link)
+  }
+  link.type = 'image/png'
+  link.href = href
+}
+
 NProgress.configure({ showSpinner: true, parent: '#app' })
 
 // 定义路由，每个路由都需要映射到一个组件
@@ -74,9 +88,12 @@ router.beforeEach((_to, _from, next) => {
   const pageTitle = (_to.meta.title as string) || '相册'
   const titleText = pageTitle.$t || pageTitle
   const brandText = config.brand?.$t || config.brand || ''
-  // 暂时去掉「葡哇立体肖像」前缀，仅保留页面标题（如「抖音定制」）
-  window.document.title =
-    config.showBrandInTitle && brandText ? `${brandText} - ${titleText}` : String(titleText)
+  const isDouyin = _to.meta.channel === 'douyin' || _to.path.includes('douyin')
+  // 暂时去掉「葡哇立体肖像」前缀；抖音页使用「萌趣小宝.ai定制」
+  window.document.title = isDouyin
+    ? `${douyinConfig.brandName} - ${titleText}`
+    : (config.showBrandInTitle && brandText ? `${brandText} - ${titleText}` : String(titleText))
+  setFavicon(isDouyin ? douyinConfig.images.logo : DEFAULT_FAVICON)
   NProgress.start() // start progress bar
   const needGuard = _to.meta.needGuard
   if (needGuard) {
diff --git a/src/views/douyin/components/PointCloudWait.vue b/src/views/douyin/components/PointCloudWait.vue
index 5bc7038..a96fbd7 100644
--- a/src/views/douyin/components/PointCloudWait.vue
+++ b/src/views/douyin/components/PointCloudWait.vue
@@ -28,7 +28,7 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import { douyinConfig } from '@/config/douyin'
-import logo2 from '@/assets/douyin/logo_2.png'
+import logo from '@/assets/douyin/mengqu.png'
 
 const props = defineProps<{
   phase: string
@@ -43,11 +43,11 @@ const copy = computed(() => {
 })
 
 const displayUrl = computed(() => {
-  if (props.phase === 'LOGO') return logo2
+  if (props.phase === 'LOGO') return logo
   if (props.phase === 'RESULT_REVEAL' || props.phase === 'DONE') {
-    return props.resultUrl || props.sourceUrl || logo2
+    return props.resultUrl || props.sourceUrl || logo
   }
-  return props.sourceUrl || logo2
+  return props.sourceUrl || logo
 })
 
 const imgClass = computed(() => {
diff --git a/src/views/douyin/components/image-point-cloud/constants.js b/src/views/douyin/components/image-point-cloud/constants.js
index 8475425..9744f65 100644
--- a/src/views/douyin/components/image-point-cloud/constants.js
+++ b/src/views/douyin/components/image-point-cloud/constants.js
@@ -1,5 +1,5 @@
 /** Image point cloud — shared constants */
-import logo1 from '@/assets/douyin/logo_1.png'
+import logo1 from '@/assets/douyin/mengqu.png'
 
 const PHASE = {
   INIT: 'INIT',
diff --git a/src/views/douyin/index.vue b/src/views/douyin/index.vue
index 844402d..8945474 100644
--- a/src/views/douyin/index.vue
+++ b/src/views/douyin/index.vue
@@ -234,7 +234,8 @@ onMounted(() => {
   align-items: center;
   gap: 8px;
   padding-left: 4px;
-  max-width: 160px;
+  max-width: 100%;
+  min-width: 0;
 }
 
 .brand-logo {