支持在线时间跨天并优化发布与筛选体验

允许在线时段 end 早于 start 表示跨天，统一展示「次日」文案；修复移动端价格区间清空后被 sessionStorage 回写；优化 PC/移动端在线时间控件密度与通栏展示。

frontend/src/features/listings/views/MobileHomeView.vue

@@ -382,13 +382,19 @@ onBeforeUnmount(() => {
 watch(
   () => filterQuerySignature(),
   () => {
-    syncMobileHomeQuery()
-    // 筛选变化时清空旧列表缓存，避免返回时命中过期数据
-    homeCache.clearList()
-    loadListings(true)
+    // 筛选弹层打开时只改本地 state，避免每个按键写 URL/storage 后被旧缓存回写
+    if (filterOpen.value) return
+    applyFilterStateAndReload()
   }
 )
 
+watch(filterOpen, (open, wasOpen) => {
+  // 关闭弹层时再统一同步 URL 并刷新列表
+  if (wasOpen && !open) {
+    applyFilterStateAndReload()
+  }
+})
+
 watch(
   () => route.query,
   () => {
@@ -623,10 +629,20 @@ function applyRouteQueryToMobileState() {
   rangeFilters.value = nextRanges
 }
 
+function applyFilterStateAndReload() {
+  syncMobileHomeQuery()
+  // 筛选变化时清空旧列表缓存，避免返回时命中过期数据
+  homeCache.clearList()
+  loadListings(true)
+}
+
 function syncMobileHomeQuery() {
   const query = mergeHomeQuery(route.query, mobileHomeFilterQueryKeys, buildMobileHomeQueryValues())
   if (hasHomeQueryValues(query, mobileHomeFilterQueryKeys)) {
     storeHomeQuery(mobileHomeFilterStorageKey, query)
+  } else {
+    // 筛选被清空时必须清掉 storage，否则 URL 变空会回退读出旧区间（最后一位删不掉）
+    clearStoredHomeQuery(mobileHomeFilterStorageKey)
   }
   if (isSameQuery(route.query, query)) return
   router.replace({ path: route.path, query })