refactor(Dashboard): 使用更简洁的Taro.getWindowInfo替换getSystemInfo

简化滚动触发逻辑，直接获取窗口高度信息，移除不必要的回调嵌套

 <!--
  * @Date: 2025-08-27 17:43:45
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-10-25 20:05:09
+ * @LastEditTime: 2025-10-26 20:16:05
  * @FilePath: /lls_program/src/pages/Dashboard/index.vue
  * @Description: 首页
 -->
@@ -657,21 +657,14 @@ const handlePageScroll = (scrollTop) => {
         if (rect) {
           // console.log('RankingCard 位置信息:', rect)
           // 获取系统信息
-          Taro.getSystemInfo({
-            success: (res) => {
-              const windowHeight = res.windowHeight
+          const { windowHeight } = Taro.getWindowInfo();
           // 当组件顶部进入视窗下方80%位置时触发
-              const triggerPoint = windowHeight * 0.8
-
-              // console.log('窗口高度:', windowHeight, '触发点:', triggerPoint, 'rect.top:', rect.top)
-
+          const triggerPoint = windowHeight * 0.8;
           if (rect.top <= triggerPoint && rect.bottom >= 0) {
             // console.log('触发数字滚动动画!')
             // 触发数字滚动动画
             triggerNumberRoll()
           }
-            }
-          })
         } else {
           console.log('未找到 RankingCard 容器元素')
         }