diff --git a/src/App.vue b/src/App.vue
index a065ad8..a555b94 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -378,7 +378,7 @@ const isTagSelectOpen = ref(false);
 
     <div v-else class="flex flex-1 overflow-hidden">
       <div class="w-80 bg-[#F8FAFD] border-r border-[#E5E5E7] flex flex-col select-none relative">
-        <div class="p-6 bg-[#F8FAFD]/80 backdrop-blur-md sticky top-0 z-20 border-b border-[#E5E5E7]/50">
+        <div class="p-6 bg-[#F8FAFD]/80 backdrop-blur-md sticky top-0 z-50 border-b border-[#E5E5E7]/50">
           <div class="flex items-center justify-between mb-4"><h2 class="text-lg font-bold">历史活动</h2><button @click="loadTimeline(true); loadEvents()" class="p-2 hover:bg-white rounded-xl text-[#86868B]"><RefreshCw :size="18" /></button></div>
           <div ref="calendarRef" class="relative group">
              <button @click="isCalendarOpen = !isCalendarOpen" class="w-full bg-white border border-[#E5E5E7] rounded-xl pl-11 pr-4 py-2.5 text-sm font-bold text-left flex items-center hover:bg-[#F2F2F7] transition-all">