.top1{
    height: 100%;
    background-color: #154768;
    position: relative;
}
.top1 .swiper-container{
    height: 100%;
}
.top1 .swiper-slide{
    height: 100%;
    position: relative;
}
.top1 .swiper-slide>video{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    object-fit: cover;
    z-index: -1;
}
.top1 .swiper-slide>div{
    position: absolute;
    /* z-index: 1; */
    /*top: 4.8rem;
    */top: 50%;
    left: 1.6rem;
    z-index: 10;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
    opacity: 0;
    transform: translateY(50%);
    -webkit-transform: translateY(50%);
    -moz-transform: translateY(50%);
    -ms-transform: translateY(50%);
    -o-transform: translateY(50%);
}
.top1 .swiper-slide-active>div{
    transition-delay: .8s;
    opacity: 1;
    transform: translateY(0);
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
}
.top1 .swiper-slide>div>h3{
    font-size: .5rem;
    color: #fff;
    font-weight: 400;
}
.top1 .swiper-slide>div>p{
    margin-top: .45rem;
    font-size: .24rem;
    color: #fff;
}
.top1 .swiper-slide>div>i{
    height: .8rem;
    width: 2px;
    display: block;
    background-color: #fff;
    margin: .2rem 0;
    opacity: 0;
}

.swiper-pagination-bullet::after{
    opacity: 0;
    transition: .8s;
    -webkit-transition: .8s;
    -moz-transition: .8s;
    -ms-transition: .8s;
    -o-transition: .8s;
    width: 240%;
    height: 240%;
    top: -75%;
    left: -75%;
    border: 1px solid #fff;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
}
/* .swiper-pagination-bullet::before{
    width: 120%;
    height: 100%;
    z-index: 5;
    top: -70%;
    left: -70%;
    background-color: deepskyblue;
} */
.swiper-pagination-bullet-active::after{
    opacity: 1;
}
.swiper-pagination-bullet-active {
    background: #fff;
}
.swiper-pagination-bullet {
    position: relative;
    width: .16rem;
    height: .16rem;
    margin-left: .78rem;
    background: #fff;
    opacity: 1;
}
.swiper-pagination{
    bottom: 1.31rem;
    right: 1.75rem;
}
.top2{
    padding: 1rem 1.6rem .8rem 1.6rem;
    background-image: url(../img/top2_bg.png);
}

.top2>div{
    width: 45%;
}
.top2>div>b{
    margin-top: .8rem;
    font-size: .24rem;
    line-height: 2;
    margin-bottom: .45rem;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
    cursor: pointer;
    font-weight: bold;
}
.top2>div>b:hover{
    color: #7CA8E6;
}
.top2>div>p{
    font-size: 14px;
    margin-bottom: 1.3rem;
    line-height: 2;
}
.top2>div>a{

}
.top2>ul{
    width: 45%;
}
.top2>ul>li{
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: .4rem;
}
.top2>ul>li:last-child{
    margin-bottom: 0;
}
.top2>ul>li>span{
    width: 45%;
    overflow: hidden;
}

.top2>ul>li>span>img{
    opacity: 0;
    transition: .8s;
    -webkit-transition: .8s;
    -moz-transition: .8s;
    -ms-transition: .8s;
    -o-transition: .8s;
}
.top2>ul>li:hover>span>img{
    transform: scale(1.2);
    -webkit-transform: scale(1.2);
    -moz-transform: scale(1.2);
    -ms-transform: scale(1.2);
    -o-transform: scale(1.2);
}
.top2>ul>li>div{
    width: 55%;
    padding: .4rem;
    background-color: #fff;
}
.top2>ul>li>div>i{
    font-size: 16px;
    color: #999999;
    display: block;
}
.top2>ul>li>div>b{
    font-size: .2rem;
    line-height: 1.5;
    margin: .4rem 0 .25rem 0;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
}
.top2>ul>li>div>a{
    transition: .5s;
    font-size: 16px;
    color: #999999;
    text-align: right;
}
.top2>ul>li:hover>div>b{
    color: #7CA8E6;
}
.top2>ul>li:hover>div>a{
    transform: translateX(.2rem);
    -webkit-transform: translateX(.2rem);
    -moz-transform: translateX(.2rem);
    -ms-transform: translateX(.2rem);
    -o-transform: translateX(.2rem);
}
.top3{
    padding: 1.4rem 1.6rem 1rem 1.6rem;
}
.top3>ul{
    margin-top: .6rem;
    margin-bottom: 1.05rem;
    width: 100%;
    box-shadow: 0px 7px 22px 2px rgba(0, 0, 0, 0.06);
}
.top3>ul>li{
    width: 25%;
    padding: .45rem 0 .4rem 0;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
    position: relative;
    cursor: pointer;
}
.top3>ul>li>span{
    width: auto;
    margin: 0 auto;
    margin-bottom: .25rem;
    position: relative;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
    width: .41rem;
}
.top3>ul>li::after{
    height: .4rem;
    width: 1px;
    background-color: #999;
    opacity: 0.4;
    right: 0;
    top: 40%;
}
.top3>ul>li:last-child::after{
    display: none;
}
.top3>ul>li>span>img{
    opacity: 1;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
}
.top3>ul>li>span>img:last-child{
    position: absolute;
    top: 0%;
    left: 0%;
    opacity: 0;
}
.top3>ul>li>p{
    font-size: .2rem;
    text-align: center;
    transition: .5s;
    -webkit-transition: .5s;
    -moz-transition: .5s;
    -ms-transition: .5s;
    -o-transition: .5s;
}
.top3>ul>li.on{
    background-color: #7CA8E6;
}
.top3>ul>li.on>span>img{
    opacity: 0;
}
.top3>ul>li.on>span>img:last-child{
    opacity: 1;
}
.top3>ul>li.on>p{
    color: #fff;
}
.top3>div{
    position: relative;
    width: 100%;
}
.top3>div>div{
    position: absolute;
    top: 0;
    opacity: 0;
    transition: .5s;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.top3>div>div>span{
    width: 50%;
}
.top3>div>div>div{
    width: 50%;
    padding: .4rem 1.2rem 0 1.2rem;
}
.top3>div>div>div>h3{
    font-size: .28rem;
    font-weight: normal;
    border-left: 4px solid #7CA8E6;
    padding-left: .2rem;
}
.top3>div>div>div>h3>b{
    font-size: 16px;
    color: #999999;
    text-transform: uppercase;
    margin-top: .2rem;
}
.top3>div>div>div>p{
/*    font-size: 16px;
    line-height: 2;*/
    margin-bottom: .7rem;
    margin-top: .5rem;
    font-size: 16px;
    display: -webkit-box;

    -webkit-box-orient: vertical;

    -webkit-line-clamp: 10;

    overflow: hidden;
}
.top3>div>div>div>p>span{
    line-height:revert;
    line-height:unset;
}
    
.top3>div>div>div>a{

}
.top3>div>div.on{
    position: relative;
    z-index: 10;
    opacity: 1;
}
@media screen and (max-width:1440px){
    .top2>ul>li>div>b,
    .top3>ul>li>p{
        font-size: 16px;
    }
    .top2>div {
        width: 46%;
    }
}
@media screen and (max-width:1280px){
    .top3>div>div>div {
        width: 50%;
        padding: .4rem 1rem 0 1rem;
    }
    .top2>ul {
        width: 50%;
    }
    .top2>div {
        width: 45%;
    }
    .top3>div>div>div>p {
        line-height: 1.5;
    }
}
@media screen and (max-width:1024px){
    .top2>div>b,
    .top1 .swiper-slide>div>p {
        font-size: 16px;
    }
    .top3>div>div>div>h3,
    .top3>div>div>div>h3>b {
        font-size: 20px;
    }
    .top1{
        height: 50%;
    }
    .top3>ul>li>span{
        width: 50px;
    }
    .top3>ul>li {
        padding: .4rem;
    }
    .top3>div>div>span,
    .top3>div>div>div{
        width: 100%;
    }
    .top3>div>div>div>h3>b{
        display: none;
    }
}
@media screen and (max-width:768px){
    .top3>ul>li>span{
        width: 35px;
    }
    .top3>ul>li{
        padding: .4rem;
    }
    .top3>div>div>div>h3>b{
        display: none;
    }
    .top3>div>div>div,
    .top3>div>div>span {
        width: 100%;
    }
    /* .top3>div>div>div>p>span{
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    } */
}
@media screen and (max-width:540px){
    .top1 {
        height: 50%;
    }
    .top3>div>div>div>h3>b{
        display: none;
    }
    .swiper-pagination-bullet {
        width: 10px;
        height: 10px;
        margin-left: 30px;
    }
    .top1 .swiper-slide>div>h3 {
        font-size: 20px;
    }
    .top2>div,
    .top3>div>div>span,
    .top3>div>div>div,
    .top2>ul {
        width: 100%;
    }
    .top2>div>p ,
    .top3>div>div>div>p{
        line-height: 1.5;
    }
    
    .top2>div>b {
        margin-top: .45rem;
        line-height: 1.5;
    }
    
    .top2>ul {
        margin-top: 1.5rem;
    }
    .top1 .swiper-slide>div>i {
        height: 1.5rem;
        margin: .5rem 0;
    }
    .top1 .swiper-slide>div {
        top: 40%;
    }
    .top3>ul>li {
        width: 50%;
    }
    .top3>ul>li>span{
        width: 30px;
    }
    .top3>div>div>div {
        padding: 1rem 0;
    }
    .top2{
        padding-top: 1.6rem;
        padding-bottom: 1.6rem;
    }
    .top3>ul,
    .top2>div>b {
        margin-top: 1.6rem;
    }
}