$(function () {
     $('.float font').click(function () {
         $(this).parent().stop().slideup()
     })
    var myswiper = new swiper('.banner .swiper-container', {
        pagination: '.banner .swiper-pagination',
        autoplay: 3000,
        speed: 1500,
        loop: true,
        prevbutton: '.banner .swiper-button-prev',
        nextbutton: '.banner .swiper-button-next',
        effect: 'fade',
        fade: {
            crossfade: false,
        }
    })
    var new_left = new swiper('.new_left .swiper-container', {
        autoplay: 3000,
        speed: 1500,
        loop: true,
        prevbutton: '.new_left .swiper-button-prev',
        nextbutton: '.new_left .swiper-button-next',
        effect: 'fade',
        fade: {
            crossfade: true,
        }
    })

    function scrollfn(length) {
        if (scri == length.length) {
            return false;
        }
        var boxpos = $(length[scri]).offset().top;
        var winpos = $(window).scrolltop() + scrheight - 250;
        if (boxpos < winpos) {
            $(length[scri]).addclass('active');
            scri++;
            if (scri < length.length) {
                scrollfn(length);
            } else {
                return false;
            }
        } else {
            return false;
        }
    }
    var scrheight = window.screen.availheight;
    var scrollarrty = ['.index_new', '.index_about', '.index_ywly'];
    var scri = 0;
    if ($('.index_new').length > 0) {
        $(window).scroll(function () {
            scrollfn(scrollarrty);
        })
        scrollfn(scrollarrty);
    }
    $('.btn').click(function () {
        $(this).toggleclass('ac')
    })
   
})