.corebanner{
    position: relative;
}

.corebanner img {
    display: block;
    width: 100%;
}
.corebanner h3{
    font-size:58px;
    text-align: center;
    top: 37%;
    text-transform: uppercase;
    position: absolute;
    width: 100%;
    color: #ffffff;
}
.corebanner h2 {
    font-family: "HYQiHei1";
    font-size:58px;
    text-align: center;
    top: 47%;
    text-transform: uppercase;
    position: absolute;
    width: 100%;
    color: #ffffff;
}

.core2{
    padding-top: 50px;
}
.core2 .menu-tab {
    width: 1150px;
    margin: 0 auto;
}
.core2 .menu-tab li {
    float: left;
    margin: 0 230px;
    cursor: pointer;
    line-height: 50px;
    border-bottom: 3px solid #fff;
    font-size: 16px;
    color: #373737;
}
.core2 .menu-tab li.active {
    border-bottom: 3px solid #45A0D9;
    color: #45A0D9;
}
.core2 .techBox {
    border-top: 1px solid #ccc;
    padding-top: 80px;
}
.core2 .techBox .item{
    height: 445px;
    position: relative;
    margin-bottom: 140px;
}
.core2 .techBox .item .itleft{
    width:716px;
    height:445px;
    position: absolute;
    top:0;
    left:0
}
.core2 .techBox .item .itright{
    width:495px;
    height:265px;
   position: absolute;
    right: 0;
    top:55px;
    background-color:#ffffff;
    box-shadow:12px 21px 46px 0px rgba(11,3,6,0.07);
    border-radius:5px;
    padding:45px 40px 30px
}
.core2 .techBox .item .itright .p1{
    font-size:30px;
    font-weight:bold;
    color:#2D2D2D;
    line-height:24px;
    text-align: center;
}
.core2 .techBox .item .itright .p2{
    font-size:14px;
    font-weight:400;
    color:rgba(45,45,45,1);
    line-height:24px;
    margin-top: 30px;
}
.core2 .techBox .item .itright .p3{
    text-align: right;
    position: absolute;
    right: 40px;
    bottom: 30px;
}
.core2 .techBox .item .itright .p3 a{
   display: inline-block;
    width:120px;
    height:40px;
    line-height: 40px;
    background:rgba(69,160,217,1);
    border-radius:5px;
    font-size:14px;
    color:#ffffff;
    text-align: center;
}