.clearfix:after {content: "."; display: block; height:0; clear:both; visibility: hidden;}
.clearfix { *zoom:1; }
.fl{float: left;}
.fr{float: right;}
html{ overflow-x:hidden;width: 100%;}
.clear{
  clear: both;
}
a:hover{
  text-decoration: none;
}
.clear{
  clear: both;
}

.fl{
  float: left;
}
.right .fr{
  float: right;
}
.box{
  width: 1245px;
  margin:0 auto;
}
.banner{
  width: 1920px;
  height: 640px;
  position: relative;
  left: 50%;
  margin-left: -960px;
}
.banner img{
  display: block;
  width: 100%;
}
.banner1{
  width: 100%;
  position: relative;
}
/*img {*/
/*  width: 100%;*/
/*}*/
@media screen and (max-width: 1600px){
  .ab1 .ab1_main .text {
    padding: 50px 160px 0 144px!important;
  }
}
@media screen and (max-width: 1024px){
  .banner1 {
    height: auto;
    width: 100%;
    left: 0;
    margin-left: 0;
  }
  .box {
    width: 100%;
  }
}
.banner1 {
  position: relative;
}
.banner1 img{
  display: block;
  width: 100%;
}
.banner1 div {
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translateX(-50%);
  width: 1245px;
  text-align: left;
}
.banner1 div p {
  font-size: 30px;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 14px;
}
.banner1 div span {
  display: inline-block;
  margin-top: 25px;
  font-size: 16px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 12px;
  opacity: 0.6;
}
a:hover {
  text-decoration: none!important;
}