/* 手机版*/

body {
  position: relative;
  overflow-x: hidden;
  background: #333;
}

.m-top {
  position: absolute;
  z-index: 99;
  left: 0;
  top: 0;
  width: 100%;
  height: 60px;
  background: #fff;
}

.m-logo {
  display: block;
  position: absolute;
  left: 10px;
  top: 15px;
}

.m-logo img {
  height: 30px;
}

.m-top .btn {
  position: absolute;
  z-index: 100;
  top: 0;
  right: 0;
  height: 60px;
  padding: 22px 52px 0 10px;
  text-align: center;
}
.m-top .btn::before {
  content: "导航";
  position: absolute;
  right: 10px;
  top: 20px;
  font-size: 18px;
  line-height: 20px;
  color: #000;
}

.m-top .btn span {
  display: block;
  width: 20px;
  height: 3px;
  background: #000;
  transition: 0.3s;
}

.m-top .btn span:nth-child(2) {
  margin: 4px 0;
}

.cross span:nth-of-type(1) {
  transform: translateY(7px) rotate(-45deg);
}

.cross span:nth-of-type(2) {
  opacity: 0;
}

.cross span:nth-of-type(3) {
  transform: translateY(-7px) rotate(45deg);
}

header {
  position: absolute;
  z-index: 99;
  right: -150px;
  top: 0;
  width: 0;
  height: 100%;
  overflow: hidden;
  padding-top: 86px;
  background: #333;
}
.logo {
  display: none;
}
header li a {
  display: block;
  font: 400 16px/36px "微软雅黑";
  color: #fff;
  text-align: center;
}
header li .t {
  display: none;
}

.wrapper {
  position: relative;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  background: #fff;
}

@media (min-width: 1200px) {
  header {
    display: block;
    position: absolute;
    right: 0;
    width: 100%;
    height: auto;
    padding: 0;
    overflow: visible;
    background: none;
  }
  .head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: absolute;
    left: 3vw;
    top: 1.5vw;
    width: 94vw;
    padding-left: 5vw;
    background: rgba(255, 255, 255, 0.8);
  }
  .logo {
    display: block;
  }

  .logo img {
    width: 12vw;
  }

  .nav ul {
    display: flex;
  }
  .nav ul li {
    padding: 1vw;
  }
  .nav ul a {
    display: block;
    position: relative;
    height: 1.6vw;
    overflow: hidden;
    font-size: 0.9vw;
    line-height: 1.6vw;
    color: #333;
  }
  .nav ul a .t {
    display: block;
    transition: 0.3s;
  }
  .nav ul a .b {
    display: block;
    position: absolute;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    opacity: 0;
    transform: translate3d(0, -100%, 0);
    transition: 0.3s;
  }
  .nav ul a:hover .t {
    opacity: 0;
    transform: translate3d(0, 100%, 0);
  }
  .nav ul a:hover .b {
    color: #012b7c;
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }

  .head-tel {
    padding: 0.8vw 1vw 0.8vw 4vw;
    background: #012b7c url(../images/tel.png) no-repeat 0.6vw center/2.8vw;
  }
  .tel-font {
    font-size: 1.5vw;
    line-height: 1.5vw;
    color: #fff;
  }
  .tel-font span {
    font-size: 1vw;
  }
}