xh_web/js/about.js

 $(".main-timeline .timeline").click(function () {
       var TAG = $(this).siblings().length;
       if (TAG >= 1) {
         var index = $(this).index()
         $(this).addClass('fd-active-line').siblings().removeClass('fd-active-line')
         $(this).parent().parent().siblings('.event_list').children().eq(index).show().siblings().hide()
       }
     })
     var swiper = new Swiper('.swiper-container', {
       slidesPerView: 4,
       direction: 'vertical',
       navigation: {
         nextEl: '.swiper-button-next',
         prevEl: '.swiper-button-prev',
       },
       on: {
         resize: function () {
           swiper.changeDirection(getDirection());
         }
       }
     });