refactor(排行榜): 优化步数格式化逻辑并添加刷新功能

重构步数格式化函数，使用toLocaleString方法替代原有逻辑
在RankingCard组件中添加refreshData方法并暴露给父组件
移除crown样式中不必要的margin-bottom属性

 <!--
  * @Date: 2025-01-09 00:00:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-09 15:26:25
+ * @LastEditTime: 2025-09-09 15:54:03
  * @FilePath: /lls_program/src/components/RankingCard.vue
  * @Description: 排行榜卡片组件
 -->
@@ -307,12 +307,24 @@ const myRank = computed(() => {
 })
 
 /**
+ * 刷新排行榜数据
+ */
+const refreshData = async () => {
+  await loadLeaderboardData(true)
+}
+
+/**
  * 页面初始化
  */
 onMounted(async () => {
   // 直接加载排行榜数据，使用current_county参数获取当前家庭所在区县信息
   await loadLeaderboardData(true)
 })
+
+// 暴露刷新方法给父组件
+defineExpose({
+  refreshData
+})
 </script>
 
 <style lang="less">
@@ -441,7 +453,7 @@ onMounted(async () => {
 
       .crown {
         font-size: 30rpx;
-        margin-bottom: 8rpx;
+        // margin-bottom: 8rpx;
 
         &.crown-gold {
           filter: grayscale(0.3) brightness(1.1);

@@ -133,7 +133,7 @@
     </WeRunAuth>
 
     <!-- 排行榜卡片 -->
-    <RankingCard :onViewMore="openFamilyRank" />
+    <RankingCard ref="rankingCardRef" :onViewMore="openFamilyRank" />
 
     <!-- Family album -->
     <view class="p-5 mt-4 mb-6 bg-white rounded-xl shadow-md mx-4">
@@ -248,6 +248,7 @@ const todaySteps = ref(0);
 const isWeRunAuthorized = ref(false);
 const pointsCollectorRef = ref(null)
 const weRunAuthRef = ref(null)
+const rankingCardRef = ref(null)
 const showTotalPointsOnly = ref(false)
 const finalTotalPoints = ref(0)
 const pendingPoints = ref([]) // 待收集的积分数据
@@ -436,6 +437,11 @@ useDidShow(async () => {
     if (weRunAuthRef.value) {
       weRunAuthRef.value.checkAuthStatus(true);
     }
+
+    // 刷新排行榜数据
+    if (rankingCardRef.value) {
+      rankingCardRef.value.refreshData();
+    }
   } else {
     // 如果没有加入家庭（code为0），跳转到欢迎页面
     Taro.redirectTo({ url: '/pages/Welcome/index' });

 <!--
  * @Date: 2025-09-01 13:07:52
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-09 14:16:08
+ * @LastEditTime: 2025-09-09 15:56:24
  * @FilePath: /lls_program/src/pages/FamilyRank/index.vue
  * @Description: 文件描述
 -->
@@ -203,10 +203,7 @@ const switchTab = async (tab) => {
  * @returns {string} 格式化后的步数
  */
 const formatSteps = (steps) => {
-  if (steps >= 10000) {
-    return (steps / 10000).toFixed(1) + '万'
-  }
-  return steps?.toString()
+  return steps ? steps.toLocaleString() : '0'
 }
 
 /**
@@ -450,7 +447,7 @@ onMounted(async () => {
 
       .crown {
         font-size: 40rpx;
-        margin-bottom: 10rpx;
+        // margin-bottom: 10rpx;
 
         &.crown-gold {
           filter: grayscale(0.3) brightness(1.1);