body,
  div,
  image,
  ul,
  li,
  a {
      margin: 0;
      padding: 0;
  }
  
  a {
      text-decoration: none;
      background-color: transparent;
  }
  
  a:link {
      text-decoration: none;
      background-color: transparent;
  }
  
  ul,
  li {
      list-style: none;
  }
  
  .clearfix:before,
  .clearfix:after {
      content: "";
      display: table;
      line-height: 0;
      visibility: hidden;
  }
  
  .clearfix:after {
      clear: both;
  }
  
  .clearfix {
      *zoom: 1;
  }
  
  html,
  body {
      width: 100%;
      height: 100%;
  }
  
  html {
      overflow: hidden;
  }
  
  body {
      width: 100%;
      font-family: 'Microsoft YaHei';
      background-color: #fff;
      *overflow-x: hidden !important;
      overflow-y: auto;
  }
  
  .nav-wrap {
      min-width: 1250px;
      width: 100%;
      height: 80px;
      background: #fe7129;
  }
  
  .nav-wrap img {
      width: 120px;
      margin-left: 20%;
      margin-top: 15px;
  }
  
  .nav-wrap .nav {
      float: right;
      margin-right: 20%;
      width: 450px;
      height: 40px;
      margin-top: 36px;
      *margin-top: -26px!important;
      /*ie7*/
  }
  
  .nav-wrap .nav li {
      float: left;
      margin-left: 30px;
  }
  
  .nav-wrap .nav li a {
      font-size: 16px;
      color: #fff;
  }
  
  .nav-wrap .nav li .active {
      text-decoration: underline;
  }
  
  .nav-wrap .nav li a:hover {
      text-decoration: underline;
  }
  
  .nav-sec {
      width: 100%;
      min-width: 1250px;
      height: 70px;
  }
  
  .nav-sec ul {
      float: right;
      margin-right: 40px;
      /* width: 666px; */
      height: 70px;
  }
  
  .nav-sec ul li {
      float: left;
      /* width: 74px; */
      text-align: center;
      height: 70px;
  }
  
  .nav-sec ul li a {
      box-sizing: border-box;
      display: inline-block;
      font-size: 16px;
      /* width: 74px; */
      height: 70px;
      line-height: 70px;
      color: #333333;
      padding: 0 15px;
  }
  
  .nav-sec ul li a span {
      color: #fe7129;
      display: none;
      font-size: 40px;
      margin-top: -50px;
  }
  
  .nav-sec ul li a:hover span {
      display: block;
  }
  
  .nav-sec ul li .active span {
      display: block;
  }
  
  .foot {
      box-sizing: border-box;
      padding: 35px 0 10px;
      width: 100%;
      height: 120px;
      background: #f0f0f0;
      text-align: center;
      font-size: 14px;
      color: #a1a09c;
      line-height: 2.4em;
  }
  
  .foot a {
      font-size: 14px;
      color: #a1a09c
  }
  
  .foot i {
      display: inline-block;
      vertical-align: middle;
      width: 20px;
      height: 20px;
  }

 .foot a{
    margin:0 1em;
    white-space: nowrap;
 }
 .foot a img{
    height:1em;
    vertical-align: middle;
 }
  
  .gs {
      background: url('../images/gs.png') no-repeat;
  }
  
  .ba {
      background: url('../images/ba.png') no-repeat;
  }
  /* 主标题 */
  
  .title {
      font-size: 42px;
      margin: 30px auto;
      color: #333;
  }
  
  .intro {
      font-size: 18px;
      line-height: 30px;
      color: #333;
  }
  
  .backtop {
      display: none;
      position: fixed;
      cursor: pointer;
      top: 750px;
      right: 100px;
      width: 50px;
      height: 50px;
  }