function getStyle(ele, attr){//获取样式
  return window.getComputedStyle ? window.getComputedStyle(ele, null)[attr] : ele.currentStyle[attr];
}

function signClassChange(){//标签类选择器变更
  let string = typeof(arguments[1]) == "undefined" ? "" : arguments[1];
  for(let i = 0; i < arguments[0].length; i++){ arguments[0][i].className = string; }
}

function leftChange(arr, num){//偏移切换
  for(let i = 0; i < arr.length; i++){
    arr[i].style.left = num + "px";
  }
}

function getActiveIndex(arr){//获取数组活动项下标
  let i = 0;
  for(i; i < arr.length; i++){
    if(arr[i].className == "active"){
      return i;
    }
  }
  return 0;
}

function getBodyWH(){//获取页面宽高
  return [
    document.body.clientWidth,
    document.body.clientHeight
  ]
}

function replaceStr(str, tge){//将字符串中所有换行符替换为tga
  return str.replace(/\n/g, tge);
}

setTimeout(function(){//内页导航选定
  let position_link = document.querySelectorAll(".position a");
  let channel_lis = document.querySelectorAll(".channel ul li");
  channel_lis.forEach(function(item, index){
    item.index = index;
    if(item.querySelector("a").innerHTML == position_link[position_link.length - 1].innerHTML){
      item.className = "active";
      return;
    }
  });
}, 300);

if($('.swiper')[0]){
  let swiper = new Swiper('.swiper', {
    spaceBetween:0,
    centeredSlides:true,
    loop:true,
    autoplay:{
      delay:5000,
      disableOnInteraction:false,
    },
    pagination:{
      el:'.swiper-pagination',
      clickable:true,
    },
  });
}

let droplist = false;
$('.header-box .menu-btn button').click(function(){
  droplist = ! droplist;
  if(droplist){
    $('.layer').css({
      'z-index':'100',
      'opacity':'1'
    });
    $('.mask').css('display','block');
  }
});
$('.layer .close-icon img').click(function(){
  droplist = false;
  $('.mask').css('display','none');
  $('.layer').css({
    'z-index':'-1',
    'opacity':'0'
  });
});
$('.mask').click(function(){
  droplist = false;
  $(this).css('display','none');
  $('.layer').css({
    'z-index':'-1',
    'opacity':'0'
  });
});