style(calendar): 调整紧凑模式下日历底部内边距

 <!--
  * @Date: 2025-01-25 15:34:17
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2026-01-21 16:03:33
- * @FilePath: /mlaj/src/components/ui/CollapsibleCalendar.vue
+ * @LastEditTime: 2026-01-22 20:26:40
+ * @FilePath: /mlaj/src/components/calendar/CollapsibleCalendar.vue
  * @Description: 可折叠日历组件
 -->
 <template>
@@ -434,6 +434,8 @@ defineExpose({
 
     // 紧凑模式下的样式控制
     &.is-compact {
+        padding-bottom: 5px;
+
         .calendar-header {
             max-height: 0;
             margin-bottom: 0;