diff --git a/banban-mini/config/index.js b/banban-mini/config/index.js
index 8df66fb..3b81445 100644
--- a/banban-mini/config/index.js
+++ b/banban-mini/config/index.js
@@ -25,8 +25,15 @@ const config = {
     options: {
     }
   },
+  fontUrlLoaderOption: {
+    // Inline the subset so WeChat DevTools does not treat the local font URL as a network request.
+    limit: 500000,
+  },
   framework: 'react',
   mini: {
+    fontUrlLoaderOption: {
+      limit: 500000,
+    },
     postcss: {
       pxtransform: {
         enable: true,
@@ -37,7 +44,7 @@ const config = {
       url: {
         enable: true,
         config: {
-          limit: 1024 // 设定转换尺寸上限
+          url: 'copy'
         }
       },
       cssModules: {
diff --git a/banban-mini/src/app.config.ts b/banban-mini/src/app.config.ts
index 31b0f38..4b2d64e 100644
--- a/banban-mini/src/app.config.ts
+++ b/banban-mini/src/app.config.ts
@@ -14,14 +14,14 @@ export default defineAppConfig({
   ],
   window: {
     backgroundTextStyle: "light",
-    navigationBarBackgroundColor: "#F5F7FA",
+    navigationBarBackgroundColor: "#FFF9EA",
     navigationBarTitleText: "伴伴",
     navigationBarTextStyle: "black",
   },
   tabBar: {
-    color: "#999999",
-    selectedColor: "#FF8C42",
-    backgroundColor: "#FFFFFF",
+    color: "#B9A17F",
+    selectedColor: "#B86E2F",
+    backgroundColor: "#FFFDF7",
     borderStyle: "white",
     list: [
       {
diff --git a/banban-mini/src/app.scss b/banban-mini/src/app.scss
index 3cb1e40..630574c 100644
--- a/banban-mini/src/app.scss
+++ b/banban-mini/src/app.scss
@@ -76,3 +76,5 @@ page {
   justify-content: space-between;
   align-items: center;
 }
+
+@import './styles/ui-theme.scss';
diff --git a/banban-mini/src/assets/fonts/Muyao-Softbrush.ttf b/banban-mini/src/assets/fonts/Muyao-Softbrush.ttf
new file mode 100644
index 0000000..4a386a1
Binary files /dev/null and b/banban-mini/src/assets/fonts/Muyao-Softbrush.ttf differ
diff --git a/banban-mini/src/assets/ui/dog-failure.png b/banban-mini/src/assets/ui/dog-failure.png
new file mode 100644
index 0000000..2b3880c
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-failure.png differ
diff --git a/banban-mini/src/assets/ui/dog-happy.png b/banban-mini/src/assets/ui/dog-happy.png
new file mode 100644
index 0000000..7916a7c
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-happy.png differ
diff --git a/banban-mini/src/assets/ui/dog-lying.png b/banban-mini/src/assets/ui/dog-lying.png
new file mode 100644
index 0000000..641a5f7
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-lying.png differ
diff --git a/banban-mini/src/assets/ui/dog-question.png b/banban-mini/src/assets/ui/dog-question.png
new file mode 100644
index 0000000..bc5b16b
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-question.png differ
diff --git a/banban-mini/src/assets/ui/dog-running.png b/banban-mini/src/assets/ui/dog-running.png
new file mode 100644
index 0000000..6dd78aa
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-running.png differ
diff --git a/banban-mini/src/assets/ui/dog-sleep.png b/banban-mini/src/assets/ui/dog-sleep.png
new file mode 100644
index 0000000..1718646
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-sleep.png differ
diff --git a/banban-mini/src/assets/ui/dog-sparkle.png b/banban-mini/src/assets/ui/dog-sparkle.png
new file mode 100644
index 0000000..a956828
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-sparkle.png differ
diff --git a/banban-mini/src/assets/ui/dog-success.png b/banban-mini/src/assets/ui/dog-success.png
new file mode 100644
index 0000000..163c116
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-success.png differ
diff --git a/banban-mini/src/assets/ui/dog-thinking.png b/banban-mini/src/assets/ui/dog-thinking.png
new file mode 100644
index 0000000..2f1ba3c
Binary files /dev/null and b/banban-mini/src/assets/ui/dog-thinking.png differ
diff --git a/banban-mini/src/assets/ui/login-hero.png b/banban-mini/src/assets/ui/login-hero.png
new file mode 100644
index 0000000..62a5102
Binary files /dev/null and b/banban-mini/src/assets/ui/login-hero.png differ
diff --git a/banban-mini/src/assets/ui/paw-dog-footer.png b/banban-mini/src/assets/ui/paw-dog-footer.png
new file mode 100644
index 0000000..0697241
Binary files /dev/null and b/banban-mini/src/assets/ui/paw-dog-footer.png differ
diff --git a/banban-mini/src/pages/bind/index.tsx b/banban-mini/src/pages/bind/index.tsx
index fface75..bd97c6b 100644
--- a/banban-mini/src/pages/bind/index.tsx
+++ b/banban-mini/src/pages/bind/index.tsx
@@ -569,6 +569,7 @@ export default function Bind() {
   if (loading) {
     return (
       <View className='bind-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='loading'>
           <Text>加载中...</Text>
         </View>
@@ -579,6 +580,7 @@ export default function Bind() {
 
   return (
     <View className='bind-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='bind-header'>
         <View className='back-btn' onClick={handleBack}>
           <Image className='back-icon' src={require('../../assets/tab-icons/arrow-left.png')} mode='aspectFit' />
@@ -587,6 +589,16 @@ export default function Bind() {
         <Text className='title'>{pageTitle}</Text>
       </View>
 
+      {bindStatus === SESSION_STATUS_PENDING && (
+        <Image className='bind-state-mascot pending' src={require('../../assets/ui/dog-running.png')} mode='aspectFit' />
+      )}
+      {bindStatus === SESSION_STATUS_COMPLETED && (
+        <Image className='bind-state-mascot success' src={require('../../assets/ui/dog-success.png')} mode='aspectFit' />
+      )}
+      {(bindStatus === SESSION_STATUS_EXPIRED || bindStatus === SESSION_STATUS_FAILED || bindStatus === SESSION_STATUS_CANCELLED) && (
+        <Image className='bind-state-mascot failure' src={require('../../assets/ui/dog-failure.png')} mode='aspectFit' />
+      )}
+
       {isAddingCard ? (
         <View className='pending-device-card'>
           <View className='icon-bg orange'>
diff --git a/banban-mini/src/pages/chat/detail/index.tsx b/banban-mini/src/pages/chat/detail/index.tsx
index 2f11672..58826de 100644
--- a/banban-mini/src/pages/chat/detail/index.tsx
+++ b/banban-mini/src/pages/chat/detail/index.tsx
@@ -748,6 +748,7 @@ export default function ChatDetail() {
 
   return (
     <View className='chat-detail-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='chat-header'>
         <View className='back-btn' onClick={handleBack}>
           <Image src={require('../../../assets/tab-icons/arrow-left.png')} className='back-arrow-img' />
diff --git a/banban-mini/src/pages/chat/index.tsx b/banban-mini/src/pages/chat/index.tsx
index 6815c24..1e79195 100644
--- a/banban-mini/src/pages/chat/index.tsx
+++ b/banban-mini/src/pages/chat/index.tsx
@@ -75,6 +75,7 @@ export default function Chat() {
 
   return (
     <View className='chat-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='page-header'>
         <Text className='page-title'>玩伴</Text>
       </View>
diff --git a/banban-mini/src/pages/device/index.scss b/banban-mini/src/pages/device/index.scss
index 6462320..246b235 100644
--- a/banban-mini/src/pages/device/index.scss
+++ b/banban-mini/src/pages/device/index.scss
@@ -6,6 +6,37 @@
   padding-bottom: calc(160px + env(safe-area-inset-bottom));
 }
 
+// Keep the artwork reference's title band in the page flow when custom
+// navigation is enabled.  The page-local rule ensures it wins over the
+// generated page stylesheet order in the mini-program runtime.
+.bb-design-nav-title {
+  position: fixed;
+  top: 88px;
+  left: 0;
+  z-index: 1000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 84px;
+  box-sizing: border-box;
+  border-bottom: 1px solid rgba(237, 237, 237, 0.95);
+  background: rgba(255, 255, 255, 0.96);
+  color: #222;
+  font-size: 26px;
+  line-height: 1;
+  text-align: center;
+  font-weight: 700;
+  pointer-events: none;
+}
+
+.bb-design-nav-title text {
+  display: block;
+  color: #222 !important;
+  font-size: 26px !important;
+  line-height: 1;
+}
+
 .page-header {
   padding: 80px 32px 24px;
 
diff --git a/banban-mini/src/pages/device/index.tsx b/banban-mini/src/pages/device/index.tsx
index aba9c7c..cf9e8a0 100644
--- a/banban-mini/src/pages/device/index.tsx
+++ b/banban-mini/src/pages/device/index.tsx
@@ -272,6 +272,7 @@ export default function Device() {
   if (isLoading) {
     return (
       <View className='device-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='loading'>
           <Text>加载中...</Text>
         </View>
@@ -283,12 +284,13 @@ export default function Device() {
   if (isGuest) {
     return (
       <View className='device-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='guest-hero'>
           <View className='guest-device-icon'>
-            <Image className='robot-img' src={require('../../assets/tab-icons/robot.png')} mode='aspectFit' />
+            <Image className='guest-mascot' src={require('../../assets/ui/dog-happy.png')} mode='aspectFit' />
           </View>
-          <Text className='guest-title'>伴伴宝贝陪伴设备</Text>
-          <Text className='guest-subtitle'>查看设备状态、定位轨迹、亲子消息和休眠管理。浏览功能后，可在需要绑定设备时登录。</Text>
+          <Text className='guest-title'>先认识一下伴伴</Text>
+          <Text className='guest-subtitle'>无需登录即可浏览主要能力，绑定设备时再完成登录。</Text>
         </View>
 
         <View className='guest-feature-grid'>
@@ -321,6 +323,11 @@ export default function Device() {
             <Text className='guest-primary-btn-text'>去登录 / 绑定设备</Text>
           </View>
         </View>
+        <Image
+          className='guest-footer-art'
+          src={require('../../assets/ui/paw-dog-footer.png')}
+          mode='aspectFit'
+        />
         {systemBanner}
       </View>
     )
@@ -330,13 +337,14 @@ export default function Device() {
     const hasPendingDevice = Boolean(pendingBinding?.device_id)
     return (
       <View className='device-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='page-header'>
           <Text className='page-title'>设备首页</Text>
         </View>
 
         <View className='empty-card'>
           <View className='empty-robot'>
-            <Image className='robot-img' src={require('../../assets/tab-icons/robot.png')} mode='aspectFit' />
+            <Image className='empty-mascot' src={require('../../assets/ui/dog-happy.png')} mode='aspectFit' />
           </View>
           <Text className='empty-title'>{hasPendingDevice ? '设备已绑定，待关联宝贝' : '先绑定一台伴伴设备'}</Text>
           <Text className='empty-subtitle'>
@@ -348,6 +356,7 @@ export default function Device() {
             <Text className='empty-btn-text'>{hasPendingDevice ? '关联宝贝' : '添加设备'}</Text>
           </View>
         </View>
+        <Image className='guest-footer-art' src={require('../../assets/ui/paw-dog-footer.png')} mode='aspectFit' />
         {systemBanner}
       </View>
     )
@@ -357,6 +366,7 @@ export default function Device() {
     const hasPendingDevice = Boolean(pendingBinding?.device_id)
     return (
       <View className='device-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='page-header'>
           <Text className='page-title'>{child.child_name} 的伴伴</Text>
         </View>
@@ -373,7 +383,7 @@ export default function Device() {
 
         <View className='empty-card'>
           <View className='empty-robot'>
-            <Image className='robot-img' src={require('../../assets/tab-icons/robot.png')} mode='aspectFit' />
+            <Image className='empty-mascot' src={require('../../assets/ui/dog-happy.png')} mode='aspectFit' />
           </View>
           <Text className='empty-title'>{hasPendingDevice ? '有设备待关联' : '给当前宝贝绑定一台设备'}</Text>
           <Text className='empty-subtitle'>
@@ -385,6 +395,7 @@ export default function Device() {
             <Text className='empty-btn-text'>{hasPendingDevice ? '关联到当前宝贝' : '去绑定设备'}</Text>
           </View>
         </View>
+        <Image className='guest-footer-art' src={require('../../assets/ui/paw-dog-footer.png')} mode='aspectFit' />
         {systemBanner}
       </View>
     )
@@ -394,6 +405,16 @@ export default function Device() {
   const pageTitle = `${childName} 的伴伴`
   const batteryValue = deviceStatus?.power ?? deviceStatus?.battery_pct ?? null
   const batteryDisplay = formatBatteryDisplay(batteryValue)
+  const statusMascotSrc =
+    batteryValue === null
+      ? require('../../assets/ui/dog-happy.png')
+      : batteryValue > 85
+        ? require('../../assets/ui/dog-happy.png')
+        : batteryValue > 60
+          ? require('../../assets/ui/dog-sparkle.png')
+          : batteryValue > 35
+            ? require('../../assets/ui/dog-lying.png')
+            : require('../../assets/ui/dog-question.png')
   const signalLabel = getSignalLabel(deviceStatus?.signal)
   const versionLabel = deviceStatus?.version || '--'
   const coordinateLabel = formatCoordinates(deviceStatus)
@@ -405,7 +426,8 @@ export default function Device() {
 
   return (
     <View className='device-page'>
-      <View className='page-header'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
+      <View className='page-header bound-device-header'>
         <Text className='page-title'>{pageTitle}</Text>
       </View>
 
@@ -433,7 +455,7 @@ export default function Device() {
         </View>
         <View className='device-avatar'>
           <View className='robot-icon'>
-            <Image className='robot-img' src={require('../../assets/tab-icons/robot.png')} mode='aspectFit' />
+            <Image className='device-mascot' src={statusMascotSrc} mode='aspectFit' />
           </View>
         </View>
       </View>
diff --git a/banban-mini/src/pages/family-invite/index.tsx b/banban-mini/src/pages/family-invite/index.tsx
index deb3eef..2111e83 100644
--- a/banban-mini/src/pages/family-invite/index.tsx
+++ b/banban-mini/src/pages/family-invite/index.tsx
@@ -1,4 +1,4 @@
-import { View, Text } from '@tarojs/components'
+import { View, Text, Image } from '@tarojs/components'
 import Taro, { useDidShow, useRouter } from '@tarojs/taro'
 import { useState } from 'react'
 
@@ -75,6 +75,8 @@ export default function FamilyInvite() {
 
   return (
     <View className='family-invite-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
+      <Image className='invite-mascot' src={require('../../assets/ui/dog-running.png')} mode='aspectFit' />
       <View className='invite-panel'>
         <Text className='invite-title'>家庭共享邀请</Text>
         {loading ? (
diff --git a/banban-mini/src/pages/location/index.tsx b/banban-mini/src/pages/location/index.tsx
index dc17b04..c1e57f2 100644
--- a/banban-mini/src/pages/location/index.tsx
+++ b/banban-mini/src/pages/location/index.tsx
@@ -377,6 +377,7 @@ export default function Location() {
 
   return (
     <View className='location-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='page-header'>
         <Text className='page-title'>设备定位</Text>
       </View>
diff --git a/banban-mini/src/pages/login/index.tsx b/banban-mini/src/pages/login/index.tsx
index 6ca37a2..8551cf8 100644
--- a/banban-mini/src/pages/login/index.tsx
+++ b/banban-mini/src/pages/login/index.tsx
@@ -1,4 +1,4 @@
-import { View, Text, Button, Checkbox, CheckboxGroup } from '@tarojs/components'
+import { View, Text, Button, Checkbox, CheckboxGroup, Image } from '@tarojs/components'
 import { useEffect, useState } from 'react'
 import Taro from '@tarojs/taro'
 import { getToken, wechatLogin } from '@/services/auth'
@@ -134,7 +134,11 @@ export default function Login() {
     <View className='login-page'>
       <View className='login-header'>
         <View className='logo'>
-          <Text className='logo-icon'>🤖</Text>
+          <Image
+            className='login-hero-art'
+            src={require('../../assets/ui/login-hero.png')}
+            mode='aspectFit'
+          />
         </View>
         <Text className='title'>伴伴</Text>
         <Text className='subtitle'>让关爱随时随地</Text>
@@ -143,15 +147,15 @@ export default function Login() {
       <View className='login-content'>
         <View className='features'>
           <View className='feature-item'>
-            <Text className='feature-icon'>💬</Text>
+            <Image className='feature-icon-image' src={require('../../assets/tab-icons/chat-icon.png')} mode='aspectFit' />
             <Text className='feature-text'>AI 智能对话</Text>
           </View>
           <View className='feature-item'>
-            <Text className='feature-icon'>📍</Text>
+            <Image className='feature-icon-image' src={require('../../assets/tab-icons/location-icon.png')} mode='aspectFit' />
             <Text className='feature-text'>实时定位追踪</Text>
           </View>
           <View className='feature-item'>
-            <Text className='feature-icon'>🔋</Text>
+            <Image className='feature-icon-image' src={require('../../assets/tab-icons/device-icon.png')} mode='aspectFit' />
             <Text className='feature-text'>设备状态监控</Text>
           </View>
         </View>
diff --git a/banban-mini/src/pages/notification/index.tsx b/banban-mini/src/pages/notification/index.tsx
index 3b0f392..e75884e 100644
--- a/banban-mini/src/pages/notification/index.tsx
+++ b/banban-mini/src/pages/notification/index.tsx
@@ -1,4 +1,4 @@
-import { View, Text } from '@tarojs/components'
+import { View, Text, Image } from '@tarojs/components'
 import { useEffect, useState } from 'react'
 import Taro, { useRouter } from '@tarojs/taro'
 import { getToken } from '@/services/auth'
@@ -50,6 +50,8 @@ export default function NotificationEntry() {
 
   return (
     <View className='notification-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
+      <Image className='notification-mascot' src={require('../../assets/ui/dog-question.png')} mode='aspectFit' />
       <View className='notification-panel'>
         <Text className='notification-title'>伴伴</Text>
         <Text className='notification-message'>{message}</Text>
diff --git a/banban-mini/src/pages/sleep-schedule/index.tsx b/banban-mini/src/pages/sleep-schedule/index.tsx
index b644599..987b8fd 100644
--- a/banban-mini/src/pages/sleep-schedule/index.tsx
+++ b/banban-mini/src/pages/sleep-schedule/index.tsx
@@ -108,6 +108,7 @@ export default function SleepSchedule() {
   if (isLoading) {
     return (
       <View className='sleep-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='loading'>
           <Text>加载中...</Text>
         </View>
@@ -119,6 +120,7 @@ export default function SleepSchedule() {
   if (!child) {
     return (
       <View className='sleep-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='page-header'>
           <Text className='page-title'>定时休眠</Text>
           <Text className='page-subtitle'>先绑定设备并选择宝贝，再为对应设备设置休眠时间</Text>
@@ -135,6 +137,7 @@ export default function SleepSchedule() {
   if (!binding) {
     return (
       <View className='sleep-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='page-header'>
           <Text className='page-title'>定时休眠</Text>
           <Text className='page-subtitle'>{child.child_name} 还没有绑定设备</Text>
@@ -157,6 +160,7 @@ export default function SleepSchedule() {
 
   return (
     <View className='sleep-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='page-header'>
         <Text className='page-title'>定时休眠</Text>
         <Text className='page-subtitle'>每天在设定时段内，设备将进入不可启动状态</Text>
@@ -169,6 +173,7 @@ export default function SleepSchedule() {
           <Text className='hero-detail'>{childName} 的当前休眠时段：{currentRange}</Text>
         </View>
         <View className='hero-icon-wrap'>
+          <Image className='sleep-hero-mascot' src={require('../../assets/ui/dog-sleep.png')} mode='aspectFit' />
           <Image className='hero-icon' src={require('../../assets/tab-icons/moon.png')} mode='aspectFit' />
         </View>
       </View>
diff --git a/banban-mini/src/pages/sleep/index.tsx b/banban-mini/src/pages/sleep/index.tsx
index 55955db..a95b627 100644
--- a/banban-mini/src/pages/sleep/index.tsx
+++ b/banban-mini/src/pages/sleep/index.tsx
@@ -962,6 +962,7 @@ export default function Sleep() {
   if (loading) {
     return (
       <View className='manage-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='loading'>
           <Text>加载中...</Text>
         </View>
@@ -973,6 +974,7 @@ export default function Sleep() {
   if (isGuest) {
     return (
       <View className='manage-page'>
+        <View className='bb-design-nav-title'><Text>微信登录</Text></View>
         <View className='page-header'>
           <Text className='page-title'>设置与管理</Text>
         </View>
@@ -1019,6 +1021,7 @@ export default function Sleep() {
             <Text className='guest-manage-btn-text'>去登录 / 绑定设备</Text>
           </View>
         </View>
+        <Image className='manage-footer-art' src={require('../../assets/ui/paw-dog-footer.png')} mode='aspectFit' />
         {systemBanner}
       </View>
     )
@@ -1158,6 +1161,7 @@ export default function Sleep() {
 
   return (
     <View className='manage-page'>
+      <View className='bb-design-nav-title'><Text>微信登录</Text></View>
       <View className='page-header'>
         <Text className='page-title'>设置与管理</Text>
       </View>
diff --git a/banban-mini/src/styles/ui-theme.scss b/banban-mini/src/styles/ui-theme.scss
new file mode 100644
index 0000000..9f384e9
--- /dev/null
+++ b/banban-mini/src/styles/ui-theme.scss
@@ -0,0 +1,789 @@
+@font-face {
+  font-family: 'MuyaoSoftbrush';
+  src: url('../assets/fonts/Muyao-Softbrush.ttf') format('truetype');
+  font-weight: 400;
+  font-style: normal;
+}
+
+/* Shared visual language from the supplied companion UI artwork. */
+page {
+  --bb-cream: #fff9ea;
+  --bb-paper: #fffdf7;
+  --bb-brown: #70451f;
+  --bb-muted: #a98258;
+  --bb-border: #edc994;
+  --bb-orange: #ffad62;
+  --bb-orange-deep: #e8873c;
+  --bb-lime: #c4e52d;
+  --bb-lime-deep: #93b516;
+  --bb-danger: #ff6d61;
+  background-color: var(--bb-cream);
+  color: var(--bb-brown);
+  font-family: 'MuyaoSoftbrush', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
+}
+
+button,
+input,
+textarea {
+  font-family: 'MuyaoSoftbrush', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
+}
+
+.login-page,
+.bind-page,
+.device-page,
+.chat-page,
+.chat-detail-page,
+.location-page,
+.manage-page,
+.sleep-page,
+.family-invite-page,
+.notification-page,
+.webview-empty {
+  background-color: var(--bb-cream) !important;
+  background-image:
+    radial-gradient(circle at 16px 18px, rgba(241, 191, 116, 0.17) 0 3px, transparent 3.5px),
+    radial-gradient(circle at 27px 13px, rgba(241, 191, 116, 0.12) 0 2px, transparent 2.5px),
+    radial-gradient(circle at 7px 13px, rgba(241, 191, 116, 0.12) 0 2px, transparent 2.5px),
+    radial-gradient(circle at 16px 5px, rgba(241, 191, 116, 0.12) 0 2px, transparent 2.5px);
+  background-size: 48px 48px;
+}
+
+.page-header,
+.bind-header,
+.login-header {
+  position: relative;
+  z-index: 1;
+}
+
+.page-header {
+  padding-top: 46px !important;
+  padding-bottom: 22px !important;
+  text-align: center;
+}
+
+.page-title,
+.bind-header .title,
+.login-header .title {
+  color: var(--bb-brown) !important;
+  font-family: 'MuyaoSoftbrush', -apple-system, BlinkMacSystemFont, 'PingFang SC', sans-serif;
+  letter-spacing: 0 !important;
+}
+
+.page-title {
+  display: inline-block !important;
+  padding: 9px 26px !important;
+  border: 2px solid var(--bb-border);
+  border-radius: 48% 52% 45% 55%;
+  background: rgba(255, 253, 247, 0.94);
+  box-shadow: 0 4px 0 rgba(237, 201, 148, 0.35);
+  font-size: 38px !important;
+}
+
+.bind-header {
+  padding-top: 46px !important;
+}
+
+.bind-header .title {
+  font-size: 38px !important;
+  padding: 10px 64px !important;
+  border: 2px solid var(--bb-border);
+  border-radius: 46% 54% 52% 48%;
+  background: rgba(255, 253, 247, 0.95);
+}
+
+.bind-header .back-btn,
+.chat-header .back-btn {
+  background: var(--bb-paper) !important;
+  border: 2px solid var(--bb-border);
+  box-shadow: none !important;
+}
+
+.back-text,
+.bind-header .back-text {
+  color: var(--bb-brown) !important;
+}
+
+.card,
+.login-info-card,
+.control-card,
+.status-card,
+.fold-card,
+.alarm-card,
+.empty-card,
+.guest-card,
+.guest-demo-card,
+.guest-guide-card,
+.location-card,
+.location-empty-card,
+.guest-location-card,
+.guest-manage-card,
+.guest-manage-list,
+.user-card,
+.summary-card,
+.settings-card,
+.tips-card,
+.hero-card,
+.invite-panel,
+.notification-panel,
+.modal-card,
+.bound-cards-card,
+.system-update-card,
+.menu-card {
+  background: rgba(255, 253, 247, 0.96) !important;
+  border: 2px solid rgba(237, 201, 148, 0.72);
+  border-radius: 18px !important;
+  box-shadow: 0 5px 0 rgba(237, 201, 148, 0.22) !important;
+}
+
+.login-info-card,
+.guest-card,
+.guest-demo-card,
+.guest-guide-card,
+.guest-manage-card {
+  border-radius: 22px !important;
+}
+
+.title,
+.subtitle,
+.login-info-title,
+.guest-card-title,
+.guest-demo-title,
+.guest-guide-title,
+.guest-manage-title,
+.empty-title,
+.empty-chat-text,
+.location-empty-title,
+.invite-title,
+.notification-title,
+.modal-title,
+.control-name,
+.section-title,
+.fold-title,
+.alarm-title,
+.system-update-title,
+.menu-name,
+.character-name {
+  color: var(--bb-brown) !important;
+}
+
+.subtitle,
+.login-info-desc,
+.guest-card-desc,
+.guest-demo-message,
+.guest-guide-desc,
+.guest-manage-desc,
+.empty-subtitle,
+.empty-desc,
+.location-empty-desc,
+.invite-desc,
+.notification-message,
+.control-detail,
+.control-link,
+.setting-hint,
+.tips-text,
+.character-desc,
+.conversation-meta,
+.conversation-time {
+  color: var(--bb-muted) !important;
+}
+
+.login-btn,
+.submit-btn,
+.guest-card-btn.secondary,
+.guest-manage-btn.secondary,
+.location-empty-action,
+.invite-action,
+.primary-btn,
+.save-btn,
+.family-primary-action,
+.system-update-action,
+.quick-sleep-btn,
+.guest-primary-btn {
+  background: var(--bb-orange) !important;
+  color: var(--bb-brown) !important;
+  border: 2px solid rgba(213, 131, 56, 0.45) !important;
+  box-shadow: 0 4px 0 rgba(213, 131, 56, 0.2);
+}
+
+.empty-btn,
+.phone-auth-btn {
+  background: #ffad62 !important;
+  color: #70451f !important;
+  border: 2px solid rgba(213, 131, 56, 0.45) !important;
+  box-shadow: 0 4px 0 rgba(213, 131, 56, 0.2);
+}
+
+.empty-btn-text,
+.phone-auth-btn {
+  color: #70451f !important;
+}
+
+.logout-btn {
+  background: #fffdf7 !important;
+  border: 2px solid rgba(237, 201, 148, 0.9) !important;
+  box-shadow: 0 4px 0 rgba(237, 201, 148, 0.24);
+}
+
+.logout-text {
+  color: #e8873c !important;
+}
+
+.login-btn .btn-text,
+.submit-btn,
+.guest-card-btn.secondary .guest-card-btn-text,
+.guest-manage-btn.secondary .guest-manage-btn-text,
+.location-empty-action-text,
+.invite-action-text,
+.primary-btn-text,
+.save-btn-text,
+.family-primary-action-text,
+.system-update-action-text,
+.quick-sleep-btn-text,
+.guest-primary-btn-text {
+  color: var(--bb-brown) !important;
+}
+
+.guest-card-btn:not(.secondary),
+.guest-manage-btn:not(.secondary),
+.guest-chat-shell .guest-card-btn,
+.composer-record,
+.mode-chip.active {
+  background: var(--bb-lime) !important;
+  border-color: rgba(112, 137, 18, 0.4) !important;
+  box-shadow: 0 4px 0 rgba(147, 181, 22, 0.22);
+}
+
+.guest-card-btn:not(.secondary) .guest-card-btn-text,
+.guest-manage-btn:not(.secondary) .guest-manage-btn-text,
+.composer-record-text,
+.mode-chip.active .mode-chip-text {
+  color: var(--bb-brown) !important;
+}
+
+.login-btn-wrapper .guest-browse-text,
+.agreement-link,
+.control-detail,
+.control-link,
+.setting-value,
+.invite-value,
+.menu-value {
+  color: var(--bb-orange-deep) !important;
+}
+
+.status-badge,
+.status-pill,
+.verified-badge,
+.conversation-tag,
+.guest-demo-tag {
+  background: #f7e5b9 !important;
+  color: var(--bb-brown) !important;
+  border: 1px solid rgba(237, 201, 148, 0.85);
+}
+
+.volume-slider .wx-slider-handle,
+.volume-slider .wx-slider-track,
+.volume-slider .wx-slider-bar {
+  background: var(--bb-orange) !important;
+}
+
+.login-header {
+  padding-top: 56px !important;
+  padding-bottom: 34px !important;
+}
+
+.login-header .logo {
+  width: 178px !important;
+  height: 178px !important;
+  border-radius: 50% !important;
+  background: #ffd26b !important;
+  border: 4px solid #eaa34f;
+  box-shadow: 0 7px 0 rgba(234, 163, 79, 0.25) !important;
+}
+
+.login-header .logo-icon {
+  font-size: 78px !important;
+}
+
+.features {
+  margin-bottom: 42px !important;
+}
+
+.feature-item .feature-icon {
+  width: 72px;
+  height: 72px;
+  border-radius: 22px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: #ffe7b5;
+  font-size: 38px !important;
+}
+
+.feature-item .feature-text {
+  color: var(--bb-brown) !important;
+}
+
+.feature-item .feature-icon-image {
+  width: 72px;
+  height: 72px;
+  padding: 16px;
+  box-sizing: border-box;
+  border-radius: 22px;
+  background: #ffe7b5;
+}
+
+.scan-frame,
+.pending-device-card,
+.form-card,
+.bind-options .option-item,
+.pending-tip {
+  background: rgba(255, 253, 247, 0.96) !important;
+  border: 2px solid rgba(237, 201, 148, 0.72);
+  box-shadow: 0 5px 0 rgba(237, 201, 148, 0.22) !important;
+}
+
+.scan-frame .scan-text,
+.pending-device-id,
+.field-label,
+.option-text,
+.pending-device-title,
+.form-title {
+  color: var(--bb-brown) !important;
+}
+
+.scan-corners .corner {
+  border-color: var(--bb-orange) !important;
+}
+
+.field-input,
+.modal-input {
+  background: #fff8e9 !important;
+  border: 2px solid rgba(237, 201, 148, 0.7) !important;
+  color: var(--bb-brown) !important;
+}
+
+.child-item {
+  background: #fff0ce !important;
+  border: 1px solid rgba(237, 201, 148, 0.76);
+}
+
+.child-item.selected {
+  background: var(--bb-lime) !important;
+  border-color: var(--bb-lime-deep) !important;
+}
+
+.child-item.selected .child-item-text {
+  color: var(--bb-brown) !important;
+}
+
+.message-bubble .user,
+.message-bubble.user,
+.user .message-bubble {
+  background: var(--bb-lime) !important;
+  color: var(--bb-brown) !important;
+}
+
+.message-bubble .peer,
+.peer .message-bubble {
+  background: var(--bb-paper) !important;
+  color: var(--bb-brown) !important;
+  border: 1px solid rgba(237, 201, 148, 0.72);
+}
+
+.chat-header {
+  background: rgba(255, 253, 247, 0.96) !important;
+  border-bottom: 2px solid rgba(237, 201, 148, 0.72) !important;
+}
+
+.composer {
+  background: rgba(255, 253, 247, 0.97) !important;
+  border-top: 2px solid rgba(237, 201, 148, 0.72) !important;
+}
+
+.hero-card {
+  background: #f7bd64 !important;
+}
+
+.status-card {
+  background: #c7e52d !important;
+  border-color: #9fba1c !important;
+}
+
+.status-card .status-title,
+.status-card .status-value,
+.status-card .status-meta,
+.status-card .battery-label,
+.status-card .battery-percent {
+  color: var(--bb-brown) !important;
+}
+
+.alarm-card,
+.alarm-history-item,
+.detail-body,
+.control-item,
+.menu-item,
+.family-member-item,
+.device-switch-item,
+.bound-card-item,
+.setting-row,
+.summary-row {
+  border-color: rgba(237, 201, 148, 0.6) !important;
+}
+
+.modal-mask {
+  background: rgba(87, 57, 28, 0.5) !important;
+}
+
+.modal-action.confirm {
+  background: var(--bb-orange) !important;
+  color: var(--bb-brown) !important;
+}
+
+.notification-panel {
+  border-radius: 22px !important;
+}
+
+.divider {
+  background: rgba(237, 201, 148, 0.6) !important;
+}
+
+@media (max-width: 360px) {
+  .page-title {
+    font-size: 34px !important;
+    padding-left: 20px !important;
+    padding-right: 20px !important;
+  }
+
+  .login-content {
+    padding-left: 28px !important;
+    padding-right: 28px !important;
+  }
+}
+
+/* Artwork placement follows the 750px reference boards while leaving all
+   existing controls in their original document flow. */
+.login-header .logo {
+  position: relative;
+  width: 600px !important;
+  height: 360px !important;
+  margin-bottom: -12px !important;
+  overflow: hidden;
+  background: transparent !important;
+  border: 0 !important;
+  border-radius: 0 !important;
+  box-shadow: none !important;
+}
+
+.login-header .logo .login-hero-art {
+  position: absolute;
+  top: -255px;
+  left: 50%;
+  width: 510px;
+  height: 675px;
+  transform: translateX(-50%);
+  pointer-events: none;
+}
+
+.login-header .logo-icon {
+  display: none;
+}
+
+.device-page,
+.bind-page,
+.chat-page,
+.chat-detail-page,
+.location-page,
+.sleep-page,
+.manage-page,
+.family-invite-page,
+.notification-page {
+  position: relative;
+}
+
+.bb-design-nav-title {
+  position: fixed;
+  top: 88px;
+  left: 0;
+  z-index: 1000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 84px;
+  box-sizing: border-box;
+  border-bottom: 1px solid rgba(237, 237, 237, 0.95);
+  background: rgba(255, 255, 255, 0.96);
+  color: #222;
+  font-size: 26px;
+  line-height: 1;
+  text-align: center;
+  font-weight: 700;
+  pointer-events: none;
+}
+
+.bb-design-nav-title text {
+  display: block;
+  color: #222 !important;
+  font-size: 26px !important;
+  line-height: 1;
+}
+
+.device-page > .bound-device-header {
+  display: none !important;
+}
+
+.guest-footer-art,
+.manage-footer-art {
+  position: fixed;
+  right: 8px;
+  bottom: 152px;
+  width: 340px;
+  height: 567px;
+  opacity: 0.98;
+  pointer-events: none;
+  z-index: 0;
+}
+
+.device-page > .guest-hero,
+.device-page > .guest-feature-grid,
+.device-page > .guest-action-card,
+.device-page > .empty-card,
+.device-page > .page-header,
+.device-page > .child-focus-card,
+.manage-page > .page-header,
+.manage-page > .guest-manage-card,
+.manage-page > .guest-manage-list {
+  position: relative;
+  z-index: 1;
+}
+
+.guest-device-icon {
+  background: transparent !important;
+  width: 460px !important;
+  height: 230px !important;
+  margin-bottom: 0 !important;
+}
+
+.guest-device-icon .guest-mascot {
+  width: 290px !important;
+  height: 210px !important;
+}
+
+.device-page > .guest-hero {
+  margin: 314px 42px 0;
+  padding: 124px 30px 118px;
+  background: rgba(255, 253, 247, 0.96) !important;
+  border: 3px solid rgba(214, 174, 125, 0.9);
+  border-radius: 42% 48% 44% 50% / 38% 40% 46% 44%;
+  box-shadow: 0 5px 0 rgba(237, 201, 148, 0.24) !important;
+}
+
+.device-page > .guest-hero .guest-device-icon {
+  display: none;
+}
+
+.device-page > .guest-hero .guest-title {
+  font-size: 38px !important;
+  line-height: 1.3;
+}
+
+.device-page > .guest-hero .guest-subtitle {
+  margin-top: 10px;
+  font-size: 24px !important;
+  line-height: 1.45;
+}
+
+.device-page > .guest-feature-grid {
+  display: none;
+}
+
+.device-page > .guest-action-card {
+  margin: 78px 48px 0;
+  padding: 0;
+  background: transparent !important;
+  border: 0;
+  box-shadow: none !important;
+  text-align: center;
+}
+
+.device-page > .guest-action-card .guest-action-title,
+.device-page > .guest-action-card .guest-action-desc {
+  display: none;
+}
+
+.device-page > .guest-action-card .guest-primary-btn {
+  margin-top: 0;
+  height: 88px;
+  border-radius: 44px !important;
+}
+
+.device-page > .page-header:not(.bound-device-header) {
+  display: none !important;
+}
+
+.device-page > .empty-card {
+  margin: 70px 48px 0;
+  padding: 38px 30px 26px;
+  background: rgba(255, 253, 247, 0.96) !important;
+  border: 3px solid rgba(214, 174, 125, 0.9);
+  border-radius: 42% 48% 44% 50% / 38% 40% 46% 44% !important;
+  box-shadow: 0 5px 0 rgba(237, 201, 148, 0.24) !important;
+}
+
+.device-page > .empty-card .empty-robot {
+  display: none;
+}
+
+.device-page > .empty-card .empty-title {
+  font-size: 38px !important;
+  line-height: 1.35;
+}
+
+.device-page > .empty-card .empty-subtitle {
+  margin-top: 8px;
+  font-size: 24px !important;
+  line-height: 1.45;
+}
+
+.device-page > .empty-card .empty-btn {
+  height: 88px;
+  margin-top: 34px;
+  border-radius: 44px !important;
+}
+
+.device-page > .child-focus-card {
+  margin-top: 52px;
+}
+
+.empty-robot {
+  background: #ffe7b5 !important;
+  border: 2px solid rgba(237, 201, 148, 0.75);
+}
+
+.empty-robot .robot-img {
+  display: none;
+}
+
+.empty-robot .empty-mascot {
+  width: 96px;
+  height: 96px;
+}
+
+.status-card {
+  min-height: 310px;
+  padding: 34px 34px 26px !important;
+  border-radius: 34px !important;
+  background: #c7e52d !important;
+}
+
+.device-avatar {
+  top: 48%;
+  right: 14px;
+  width: 250px !important;
+  height: 210px !important;
+  border: 0 !important;
+  border-radius: 0 !important;
+  background: transparent !important;
+}
+
+.device-avatar .robot-icon {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+}
+
+.device-avatar .device-mascot {
+  width: 190px;
+  height: 180px;
+}
+
+.status-meta {
+  max-width: 52%;
+}
+
+.bind-state-mascot {
+  display: block;
+  width: 180px;
+  height: 150px;
+  margin: 4px auto 8px;
+  pointer-events: none;
+}
+
+.bind-state-mascot.pending {
+  width: 210px;
+  height: 145px;
+}
+
+.bind-state-mascot.success,
+.bind-state-mascot.failure {
+  width: 190px;
+  height: 170px;
+}
+
+.invite-mascot {
+  display: block;
+  width: 245px;
+  height: 175px;
+  margin: 18px auto 4px;
+  pointer-events: none;
+}
+
+.family-invite-page {
+  padding-top: 24px !important;
+}
+
+.notification-page {
+  flex-direction: column;
+  justify-content: center;
+  gap: 4px;
+}
+
+.notification-mascot {
+  width: 190px;
+  height: 190px;
+  margin-bottom: -14px;
+  pointer-events: none;
+}
+
+.notification-panel {
+  position: relative;
+  z-index: 1;
+  background: rgba(255, 253, 247, 0.96) !important;
+}
+
+.sleep-hero-mascot {
+  width: 112px;
+  height: 104px;
+  margin-right: -44px;
+  z-index: 1;
+}
+
+.hero-icon-wrap .hero-icon {
+  position: relative;
+  z-index: 2;
+}
+
+@media (max-width: 360px) {
+  .login-header .logo {
+    width: 520px !important;
+    height: 320px !important;
+  }
+
+  .login-header .logo .login-hero-art {
+    width: 455px;
+    height: 602px;
+    top: -230px;
+  }
+
+  .device-avatar {
+    right: -2px;
+    width: 210px !important;
+  }
+
+  .device-avatar .device-mascot {
+    width: 160px;
+    height: 155px;
+  }
+}