*{
  margin:0;
  padding: 0;
}
body{
  background-color: rgb(247,247,247);
}
a{
  text-decoration: none;
}
li{
  list-style: none;
}
.index_banner{
  position: relative;
  width: 100%;
  min-height: 100%;
}
.index_banner_center{
    width: 100%;
    min-width: 100%;
    height: 100%;
    margin:0 auto;
}
.nav_index {
    width: 100%;
    position: absolute;
    top: 0px;
    z-index: 999;
}
.nav_index .nav_center{
  max-width: 1700px;
    height: 100px;
    margin: 0 auto;
}
.nav_index .nav_center .logo{
  padding-right: 0px;
}
.nav_center ul li a{
  color: #fff!important;
}
.nav_center .lianxi span{
  color: #fff;
}
.index_text{
  width: 100%;
  position: absolute;
  top: 40%;
  z-index: 999;
}
.index_text_center{
  max-width: 1700px;
  margin:0 auto;
}
.index_footer{
  width: 100%;
  height: 220px;
  position: absolute;
  bottom: 0;
  z-index: 999;
}
.index_footer .footer_left{
  width: 100%;
}
.index_footer  .footer_left ul{
  width: 230px;
  margin:0 auto;
}
.index_footer  .footer_left ul li{
  margin-left: 0px;
}
.index_footer  .footer_left ul span{
  width: 80px;
  display: inline-block;
  height: 100%;
  text-align: center;
  float: left;
}
.index_footer  .footer_left ul li a{
  color: #fff;
}
.index_footer .footer_left .version{
  text-align: center;
  color: #fff;
}
.index_footer .footer_left .record{
  text-align: center;
}
.index_text_img{
  width: 55%;
  max-height: 169px;
}
.footer_left ul span:last-of-type{
  display: none;
}