feat: tabBar 选中态图标填充高亮，半透明毛玻璃背景

src/custom-tab-bar/index.scss

@@ -4,7 +4,9 @@
   left: 0;
   right: 0;
   height: 120px;
-  background: #ffffff;
+  background: rgba(255, 255, 255, 0.75);
+  backdrop-filter: blur(20px);
+  -webkit-backdrop-filter: blur(20px);
   display: flex;
   justify-content: space-around;
   align-items: center;
@@ -16,7 +18,9 @@
 
 /* 自定义组件样式隔离：两套主题配色在组件内自包含，不依赖全局 app.wxss */
 .custom-tab-bar.theme-dark {
-  background: #191919;
+  background: rgba(25, 25, 25, 0.75);
+  backdrop-filter: blur(20px);
+  -webkit-backdrop-filter: blur(20px);
   box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.5);
 }
 

src/custom-tab-bar/index.tsx

@@ -7,11 +7,11 @@ import { applyPageBackground } from '../utils/themeBackground'
 import './index.scss'
 
 const TABS = [
-  { pagePath: '/pages/index/index', text: '首页', icon: '/icon/首页.svg' },
-  { pagePath: '/pages/shop/index', text: '商品', icon: '/icon/商品.svg' },
-  { pagePath: '/pages/designList/index', text: '设计清单', icon: '/icon/调色盘.svg' },
-  { pagePath: '/pages/orders/index', text: '订单', icon: '/icon/包裹.svg' },
-  { pagePath: '/pages/profile/index', text: '我的', icon: '/icon/个人.svg' }
+  { pagePath: '/pages/index/index', text: '首页', icon: '/icon/首页.svg', iconActive: '/icon/首页-fill.svg' },
+  { pagePath: '/pages/shop/index', text: '商品', icon: '/icon/商品.svg', iconActive: '/icon/商品-fill.svg' },
+  { pagePath: '/pages/designList/index', text: '设计清单', icon: '/icon/调色盘.svg', iconActive: '/icon/调色盘-fill.svg' },
+  { pagePath: '/pages/orders/index', text: '订单', icon: '/icon/包裹.svg', iconActive: '/icon/包裹-fill.svg' },
+  { pagePath: '/pages/profile/index', text: '我的', icon: '/icon/个人.svg', iconActive: '/icon/个人-fill.svg' }
 ]
 
 export default function CustomTabBar() {
@@ -48,7 +48,7 @@ export default function CustomTabBar() {
             className={`tab-item ${isActive ? 'active' : ''}`}
             onTap={() => switchTab(tab.pagePath)}
           >
-            <Image className={`tab-icon-img ${isActive ? 'active' : ''}`} src={tab.icon} mode='aspectFit' />
+            <Image className={`tab-icon-img ${isActive ? 'active' : ''}`} src={isActive ? tab.iconActive : tab.icon} mode='aspectFit' />
             <Text className='tab-label'>{tab.text}</Text>
           </View>
         )

src/icon/个人-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="#ff9a9e"><path d="M12 12a4 4 0 1 0 0-8 4 4 0 0 0 0 8z"/><path d="M5.5 20c.8-3 3.4-4.5 6.5-4.5s5.7 1.5 6.5 4.5"/></svg>

src/icon/包裹-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M7 3.5h10A1.5 1.5 0 0 1 18.5 5v14A1.5 1.5 0 0 1 17 20.5H7A1.5 1.5 0 0 1 5.5 19V5A1.5 1.5 0 0 1 7 3.5z" fill="#ff9a9e"/><path d="M9 8h6M9 12h6M9 16h3" stroke="#fff" stroke-width="1.6" stroke-linecap="round"/></svg>

src/icon/商品-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="#ff9a9e"><path d="M5 8h14l-1.2 12H6.2L5 8z"/><path d="M9 8V6a3 3 0 0 1 6 0v2" fill="none" stroke="#ff9a9e" stroke-width="2" stroke-linecap="round"/></svg>

src/icon/调色盘-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="#ff9a9e"><path fill-rule="evenodd" d="M12 4a8 8 0 1 1 0 16 8 8 0 0 1 0-16zm-3 6a1.4 1.4 0 1 0 0 2.8 1.4 1.4 0 0 0 0-2.8zm6 0a1.4 1.4 0 1 0 0 2.8 1.4 1.4 0 0 0 0-2.8zM12 13.6a1.4 1.4 0 1 0 0 2.8 1.4 1.4 0 0 0 0-2.8z"/></svg>

src/icon/首页-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="#ff9a9e"><path d="M4 11l8-7 8 7v8a1 1 0 0 1-1 1h-4.5v-6h-5v6H5a1 1 0 0 1-1-1z"/></svg>