feat: UI redesign with uv-ui color system and landscape imagery

- Replace all colors with uv-ui design tokens (primary #3c9cff, warning #f9ae3d, etc.)
- Hero section: Wugong Mountain landscape photo with dark overlay
- Super Player card: photo background, large typography, warning-color price/CTA, value comparison (¥198 vs ¥3800+)
- Spots section: landscape thumbnails instead of CSS gradients, warning-color prices
- Profile page: landscape hero header, CSS menu icons, floating card layout
- Card list page: landscape hero header, filter pills, empty state design
- TabBar: rename '入园码' to '旅游卡', Lucide-style PNG icons (home/card/profile)
- Typography: corrected font weights (semibold for prices, medium for labels)
- Remove broken font-loader (lxgw-wen-kai CDN 404)
- Skip wx.getPrivacySetting in devtools to avoid framework timeout
- Replace all inline SVG with CSS-only icons for mini-program compatibility
- Add design system files (styles/, components/, animations)

Co-Authored-By: Claude <noreply@anthropic.com>

src/App.vue

@@ -4,15 +4,20 @@ import { useUserStore } from './store/user'
 
 onLaunch(() => {
   // #ifdef MP-WEIXIN
-  wx.getPrivacySetting({
-    success: (res: any) => {
-      if (res.needAuthorization) {
-        uni.setStorageSync('needPrivacy', true)
-      } else {
-        uni.removeStorageSync('needPrivacy')
-      }
-    }
-  })
+  // 仅真机检查隐私协议，模拟器中跳过（getPrivacySetting 在模拟器会触发框架级 timeout）
+  const sysInfo = uni.getSystemInfoSync()
+  if (sysInfo.platform !== 'devtools' && wx.getPrivacySetting) {
+    wx.getPrivacySetting({
+      success: (res: any) => {
+        if (res.needAuthorization) {
+          uni.setStorageSync('needPrivacy', true)
+        } else {
+          uni.removeStorageSync('needPrivacy')
+        }
+      },
+      fail: () => {},
+    })
+  }
   // #endif
 
   const userStore = useUserStore()
@@ -25,9 +30,10 @@ onLaunch(() => {
 })
 </script>
 
-<style>
+<style lang="scss">
+@import './styles/main.scss';
+
 page {
   min-height: 100vh;
-  background-color: #f5f5f5;
 }
 </style>