function scrolltotop(scrollduration) {
  var scrollheight = window.scrolly,
    scrollstep = math.pi / (scrollduration / 15),
    cosparameter = scrollheight / 2;

  var scrollcount = 0,
    scrollmargin;

  requestanimationframe(step);

  function step() {
    settimeout(function () {
      if (window.scrolly != 0) {
        scrollcount = scrollcount + 1;
        scrollmargin =
          cosparameter - cosparameter * math.cos(scrollcount * scrollstep);
        window.scrollto(0, scrollheight - scrollmargin);
        requestanimationframe(step);
      }
    }, 15);
  }
}

var swiper = new swiper("#swipercontainer", {
  loop: true,
  speed: 1000,
  watchslidesprogress: true,
  autoplay: {
    disableoninteraction: false,
    delay: 5000,
  },
  pagination: {
      el: ".swiper-pagination",
      clickable: true,
  },
  onslidechangestart: function () {
    console.log("轮播图切换了");
    // 在这里执行您想要的操作
  },
});

var noticeswiper = new swiper("#swiper-notice", {
 
    speed: 1000,
    slidesperview: 1,
    spacebetween: 10,
    autoplay: {
        disableoninteraction: false,
        delay: 1000,
    },
    breakpoints: {
        1280: {  //当屏幕宽度大于等于1280
          slidesperview: 3,
          spacebetween: 10
       }
    }
});
var swipernews = new swiper("#swiper-news", {
  loop: true,
    speed: 1000,
    effect: 'fade',
  watchslidesprogress: true,
  autoplay: {
    disableoninteraction: false,
    delay: 5000,
  },
  pagination: {
   clickable:true,
   el: ".swiper-pagination",
     
  },
  onslidechangestart: function () {
    console.log("轮播图切换了");
    // 在这里执行您想要的操作
  },
});

window.addeventlistener('resize', function () {

   settimeout(function () {
     
       swipernews.update();
   
  }, 300); // 延迟时间可根据实际情况调整
});
var swiperset = new swiper("#swiper-set", {
  loop: true,
  speed: 1000,
  watchslidesprogress: true,
  autoplay: {
    disableoninteraction: false,
    delay: 5000,
  },
  pagination: {
    el: ".swiper-pagination",
  },
  onslidechangestart: function () {
    console.log("轮播图切换了");
    // 在这里执行您想要的操作
  },
});
var swiperparty = new swiper("#swiper-party", {
  loop: true,
  speed: 1000,
  watchslidesprogress: true,
  autoplay: {
    disableoninteraction: false,
    delay: 5000,
  },
  pagination: {
    el: ".swiper-pagination",
  },
  onslidechangestart: function () {
    console.log("轮播图切换了");
    // 在这里执行您想要的操作
  },
});
var f4myswiper = new swiper("#f4myswiper", {
  slidesperview: 1,
  spacebetween: 10,
  pagination: {
    el: ".f4swiper-pagination",
    clickable: true,
  },
  navigation: {
    nextel: ".f4swiper-button-next",
    prevel: ".f4swiper-button-prev",
  },
  breakpoints: {
    "@0.00": {
      slidesperview: 1,
      spacebetween: 10,
    },
    "@0.75": {
      slidesperview: 2,
      spacebetween: 20,
    },
    "@1.00": {
      slidesperview: 3,
      spacebetween: 40,
    },
    "@1.50": {
      slidesperview: 6,
      spacebetween: 22,
    },
  },
});

var swiper2 = new swiper("#swiper-business", {
  loop: true,
  speed: 1000,
  watchslidesprogress: true,
  autoplay: {
    disableoninteraction: false,
    delay: 5000,
  },
  onslidechangestart: function () {
    console.log("轮播图切换了");
    // 在这里执行您想要的操作
  },
});
swiper.on("slidechange", () => {
  console.log("轮播图切换了", swiper.activeindex);
  $(".swiper-slide .en-title").hide();
  $(".swiper-slide .ch-title").hide();

  settimeout(() => {
    $(".swiper-slide .en-title").show();
    $(".swiper-slide .ch-title").show();
    // $('.swiper-slide .swiper-slide-active').addclass('init-img')
    $(".swiper-slide .en-title").addclass(
      "animate__animated  animate__slideinleft"
    );
    $(".swiper-slide .ch-title").addclass(
      "animate__animated  animate__slideinright"
    );
  }, 1000);
  settimeout(() => {
    $(".swiper-slide .en-title").removeclass(
      "animate__animated  animate__slideinleft"
    );
    $(".swiper-slide .ch-title").removeclass(
      "animate__animated  animate__slideinright"
    );
  }, 2000);
  settimeout(() => {
    // $(".swiper-slide img").removeclass('init-img')
  }, 4999);
});
$(".keshi-item").click(function () {
  // 移除其他keshi-item的active类
  $(".keshi-item").not($(this)).removeclass("active");
  // 给当前keshi-item添加active类
  $(this).addclass("active");
});