feat: ui update

miniprogram/pages/mall/mall.ts

@@ -3,6 +3,7 @@ import { QuotaItem, UserInfo, GoodsItem, QuotaFlowItem, PagedResult, VirtualPayR
 import { QUOTA_NAMES, GoodsType, GOODS_TYPE_NAMES } from '../../utils/config'
 import { fenToYuan, formatDate, formatDateTime } from '../../utils/format'
 import { normalizePaged } from '../../utils/paged'
+import { navScroll } from '../../utils/nav'
 import { logger } from '../../utils/logger'
 
 // 日志模块名
@@ -55,8 +56,13 @@ Page({
     orderGoods: null as GoodsItem | null,
     submitting: false, // 下单防连点：连点「立即支付」会重复创建虚拟支付订单
     loading: true,
+    // 滚动收缩：由 utils/nav.ts 的共享 handler 驱动
+    navScrolled: false,
   },
 
+  // scroll-view 滚动 → 导航收缩为玻璃小标题
+  onNavScroll: navScroll,
+
   onLoad(query: Record<string, string>) {
     logger.debug(LOG, 'onLoad, query=', JSON.stringify(query))
     if (query.tab === 'flow') this.setData({ view: 'flow' })