$(function() {
    function setRem() {
        var deviceWidth = document.documentElement.clientWidth;
        document.documentElement.style.fontSize = deviceWidth / 7.5 + 'px';
    }

    setRem()

    window.onresize = function() {
        setRem()
    }

    var swiper = new Swiper('.swiper-container', {
        spaceBetween: 30,
        slidesPerGroup: 1,
        loop: true,
        loopFillGroupWithBlank: false,
        pagination: {
          el: '.swiper-pagination',
          clickable: true,
        },
        autoplay: {
            delay: 4000,
            stopOnLastSlide: false,
            disableOnInteraction: true,
        },
    });

    const url = [
        './img/student.png',
        './img/agency.png',
        './img/teacher.png',
    ]

    $('.js-btn').on('click', function() {
        var index = $(this).index()
        $('#pingtai_cover').attr('src', url[index])
        $(this).addClass('active-btn').siblings().removeClass('active-btn');
    })

    $('.contactUs').on('click', function () {
        _53App.talk('icon','&zdkf_type=1&kf=&kflist=off');
    })
})