.banner{
    position: relative;
}
.banner .swiper-slide .pic img {
    display: block;
    width: 100%;
    height: 100vh;
    object-fit: cover;
}

.banner .btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid #FFFFFF;
    color: #fff;
    cursor: pointer;
    transition: all 0.6s;
    z-index: 3;
}

.banner .btn:hover {
    border-color: rgba(31, 100, 176, 1);
    background: rgba(31, 100, 176, 1);
    color: #fff;
}

.banner .btn-prev {
    left: 3.12%;
}

.banner .btn-next {
    right: 3.12%;
}

.drop {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: 30px;
    z-index: 3;
    color: #fff;
    text-align: center;
    animation: dropDown 2s infinite;
    cursor: pointer;
    z-index: 99;
}
.drop.swiper-button-disabled{
    display: none;
}
.drop.active{
    color: #333;
}
.drop .iconfont {
    display: block;
    transform: scale(1.8);
}

.banner .drop .iconfont.icon-shubiao {
    font-size: 26px;
}

.banner .drop .iconfont.icon-xia {
    font-size: 12px;
}

@keyframes dropDown {

    0%,
    100% {
        transform: translateY(10px);
    }

    50% {
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .banner .drop {
        bottom: 20px;
    }
}

.main {
    background-color: RGBA(250, 250, 250, 1);
}
.main-swiper{
    height: 100vh;
    transition: transform 0.5s ease-out;
}
.main-slide{
    height: 100vh;
}
.box1 {
    position: relative;
    padding-top: 120px;
    /* padding-bottom: 300px; */
    z-index: 4;
}
.box1 .zh {
    font-weight: 300;
    color: #1F64B0;
    line-height: 1;
    text-align: center;
}

.box1 .en {
    font-family: Rany-Bold;
    color: #FAFAFA;
    line-height: 1;
    text-stroke: 1px #DDDDDD;
    -webkit-text-stroke: 1px #DDDDDD;
    text-align: center;
    margin-top: .2em;
}

.box1 .box-c {
    margin-top: 50px;
}
.main-slide3 .box1 .box-c{
    margin-top: 0 !important;
}
.box1 .box-c .item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.box1 .box-c .item2,
.box1 .box-c .item:nth-child(2n) {
    flex-direction: row-reverse;
}

.box1 .box-c .item:not(:last-child) {
    margin-bottom: 129px;
}

.box1 .box-c .item-l {
    position: relative;
    width: 60.41%;
    z-index: 2;
}

.box1 .box-c .item-l1 .text-box {
    font-family: MicrosoftYaHei;
    font-weight: 300;
    color: #222222;
    line-height: 2;
}

.box1 .box-c .item-l1 .list {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.box1 .box-c .item-l1 .list .number {
    line-height: 1;
    font-family: MicrosoftYaHei;
    font-weight: 300;
}

.box1 .box-c .item-l1 .list .number .counter {
    line-height: 1;

}

.box1 .box-c .item-l1 .list .text {
    font-weight: 400;
    font-size: 20px;
    color: #222222;
    line-height: 1.25;
    margin-top: .7em;
}

.box1 .box-c .item-r {
    position: relative;
    width: 30.28%;
    z-index: 1;
}

.box1 .box-c .item-r .bg {
    position: absolute;
    left: 0;
    top: 0;
    width: 50%;
    height: 50%;
    transform: translateX(-28.57%);
}

.box1 .box-c .item2 .item-r .bg {
    left: auto;
    top: auto;
    bottom: 0;
    right: 0;
    transform: translateX(28.57%);
}

.box1 .box-c .item-r .bg span {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(210deg, #1F64B0, #FFFFFF);
    border-radius: 50%;
}

.box1 .box-c .item-r .pic {
    position: relative;
    border-radius: 50%;
    z-index: 2;
}

.box1 .box-c .item-l2 .text-box {
    font-weight: 300;
    /* font-size: 30px; */
    color: #222222;
    line-height: 1.6;
}

.box1 .box-c .item-l2 .text-box p:not(:last-child) {
    margin-bottom: 1.33em;
}
.box1 .box-c .item-l2 .text-box p:not(:last-child){
    margin-bottom: .6em
}
.box1 .box-c .item-l2 .text-en {
    text-transform: uppercase;
    white-space: nowrap;
    font-weight: Rany-Bold;
    text-stroke: 1px #D9D9D9;
    -webkit-text-stroke: 1px #D9D9D9;
    color: rgba(34, 34, 34, 0);
    line-height: 1;
    margin-top: .4em;
}

.box1 .box-c .item-l2 .text {
    transform: translateX(0);
    /* transition: all 1s ease-out; */
}

.box2 {
    position: relative;
    padding: 0px 0 0;
    /* overflow: hidden; */
    /* background: url("../img/index-box2-bg.png");
    background-size: cover; */
    z-index: 3;
}

.box2 .bg {
    position: absolute;
    left: 0;
    top: -30%;
    width: 100%;
    height: 100%;
}

.box2 .bg img {
    display: block;
    width: 100%;
    object-fit: cover;
}

.box2 .content1400 {
    position: relative;
    z-index: 3;
}

.box2 .title {
    font-weight: bold;
    color: #1F64B0;
    line-height: 1;
    text-align: center;
}

.box2 .box-c {
    margin-top: 30px;
}

.box2 .box-c .swiper {
    overflow: visible;
    height: 260px;
}

.box2 .box-c .swiper-slide {
    position: relative;
    width: 200px;
    height: 200px;
    background: #FFFFFF;
    border-radius: 10px;
    box-shadow: 5px 9px 30px 0px rgba(217, 227, 239, 0.3);
    border-radius: 10px;
    transition: all 0.6s;
}

.box2 .box-c .swiper-slide:hover {
    width: 300px;
    height: 260px;
}

.box2 .box-c .swiper-slide a {
    display: block;
    width: 100%;
    height: 100%;
}

.box2 .box-c .swiper-slide-b,
.box2 .box-c .swiper-slide-t {
    padding: 35px;
}

.box2 .box-c .swiper-slide-b {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.box2 .box-c .swiper-slide:hover .swiper-slide-b {
    opacity: 0;
}

.box2 .box-c .swiper-slide-t {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

.box2 .box-c .swiper-slide-b-t {
    font-weight: 400;
    font-size: 24px;
    color: #222222;
    line-height: 1;

}

.box2 .box-c .swiper-slide-b .text-title {
    font-weight: 400;
    font-size: 16px;
    color: #999999;
    line-height: 1;
}

.box2 .box-c .swiper-slide-b .text-des {
    font-family: Rany-Bold;
    color: #222222;
    line-height: 1;
    margin-top: 5px;
}

.box2 .box-c .swiper-slide-t {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(31, 100, 176, 1);
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.6s;
    z-index: 3;
}

.box2 .box-c .swiper-slide:hover .swiper-slide-t {
    opacity: 1;
    pointer-events: inherit;
}

.box2 .box-c .swiper-slide-t .text-title {
    font-weight: 400;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 1;
}

.box2 .box-c .swiper-slide-t .text-des {
    font-family: Rany-Bold;
    font-size: 1;
    color: #FFFFFF;
    line-height: 1;
    margin-top: .43em;
}

.box2 .box-c .swiper-slide-t .text {
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 24px;
    margin-top: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.box2 .box-c .swiper-slide-t .more {
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 1;
    margin-top: 30px;
}

.box2 .btns {
    /* margin-top: 43px; */
    display: flex;
    position: absolute;
    right: 0;
    top: -20px;
}

.box2 .btns .btn {
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    border-radius: 50%;
    color: rgba(31, 100, 176, 1);
    cursor: pointer;
    transition: all .6s;
}

.box2 .btns .btn .iconfont {
    font-size: 18px;
    font-weight: bold;
}

.box2 .btns .btn:last-child {
    margin-left: -10px;
    background-color: rgba(31, 100, 176, 1);
    color: #fff;
}

.box2 .btns .btn:hover {
    background-color: rgba(31, 100, 176, 1);
    color: #fff;
    z-index: 3;
}

.box2 .btns .btn:hover+.btn {
    background: #fff;
    color: rgba(31, 100, 176, 1);
}

.box3 {
    position: relative;
    width: 100%;
    padding-top: 50px;
}
.main-slide4{
    display: flex;
    align-items: center;
}
.box3::before {
    position: absolute;
    content: "";
    left: 0;
    width: 100%;
    height: 50%;
    bottom: 0;
    background-color: rgba(22, 35, 59, 1);
    display: none;
}

.box3 .box-c {
    position: relative;
    padding: 201px 0 213px;
    border-radius: 20px;
    text-align: center;
    z-index: 3;
}

.box3 .box-c .pic {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 20px;
}

.box3 .box-c .pic img {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.box3 .box-c .text-title {
    position: relative;
    font-weight: bold;
    /* font-size: 48px; */
    color: #FFFFFF;
    line-height: 1.25;
    z-index: 2;
}

.box3 .box-c .playBtn {
    position: relative;
    margin: 30px auto 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 1);
    background: rgba(255, 255, 255, .7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 1);
    z-index: 4;
    cursor: pointer;
}

.box3 .box-c .playBtn .iconfont {
    font-size: 24px;
}

.box4 {
    position: relative;
    background-color: RGBA(22, 35, 59, 1);
    min-height: 100vh;
    z-index: 3;
}

.box4 .box-c {
    position: relative;
    padding: 120px 0 168px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.box4 .box-c .l {
    position: sticky;
    top: 200px;
    width: 33.42%;
    padding-top: 30px;
}

.box4 .box-c .l .icon img {
    display: block;
    width: 125px;
}

.box4 .box-c .l .text-box {
    font-weight: 300;
    /* font-size: 36px; */
    color: #FFFFFF;
    line-height: 1.2;
    margin-top: 78px;
}

.box4 .box-c .l .text-box p:not(:last-child) {
    margin-bottom: .78em;
}

.box4 .box-c .l .more {
    position: relative;
    margin-top: 168px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 400;
    font-size: 18px;
    color: #FFFFFF;
}

.box4 .box-c .l .more .moreBg {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.box4 .box-c .l .more .moreBg img {
    display: block;
    width: 100%;
    animation: spin 13s linear infinite;
}
.box4 .box-c .l .more:hover .moreBg img{
    animation-play-state: paused;
}
.box4 .box-c .l .more .iconfont {
    font-size: 20px;
    margin-top: 5px;
}
.box4 .box-c .r{
    width: 61%;
    display: flex;
    justify-content: space-between;
}
.box4 .box-c .r .item{
    width: 46%;
}
.box4 .box-c .r li:not(:last-child){
    margin-bottom: 35px;
}
.box4 .box-c .r .item .picCover{
    padding-top: 56.37%;
}
.box4 .box-c .r .item .picCover .pic{
    border-radius: 5px;
}
.box4 .box-c .r .item .labels{
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.box4 .box-c .r .item .labels .label{
    font-weight: 400;
    font-size: 14px;
    color: #16233B;
    line-height: 34px;
    padding: 0 17px;
    background: #FFFFFF;
    border-radius: 17px;
    transition: all .6s;
}
.box4 .box-c .r .item .labels .label:hover{
    background: #1F64B0;
    color: #fff;
}
.box4 .box-c .r .item .text-title{
    /* font-weight: 300; */
    font-size: 22px;
    color: #FFFFFF;
    line-height: 1.5;
    margin-top: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}
.box4 .box-c .r .item .date{
    font-family: Rany;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 1;
    margin-top: 10px;
}
.box4 .box-c .r .item:nth-child(2n){
    padding-top: 4.25%;
}
@media (max-width: 768px) {
    .banner .btn{
        width: 34px;
        height: 34px;
    }
    .banner .btn-next{
        right: 3%;
    }
    .banner .btn-prev{
        left: 3%;
    }
    .banner .drop{
        bottom: 15px;
    }
    .banner .drop .iconfont.icon-shubiao{
        margin-bottom: 0;
    }
}
@media (max-width:1440px) {
    .box2 .box-c .swiper{
        height: 220px;
    }
    .box3 .box-c{
        padding: 149px 0;
    }
    .box1 .box-c .item-l2 .text-en{
        margin-top:.2em;
    }
    .box2 .box-c .swiper-slide:hover{
        width:260px;
        height: 220px;
    }
    .box2 .box-c .swiper-slide-b, .box2 .box-c .swiper-slide-t{
        padding: 27px;
    }
    .box2 .box-c .swiper-slide-b .text-des,
    .box2 .box-c .swiper-slide-t .text-des,
    .box1 .box-c .item-l1 .text-box,
    .box1 .box-c .item-l2 .text-box{
        font-size: 24px;
    }
    .box2 .box-c .swiper-slide-t .text-title,
    .box2 .box-c .swiper-slide-b-t{
        font-size: 20px;
    }
    .box4 .box-c .r .item .labels{
        line-height: 30px;
        /* padding:0 14px; */
    }
    .box4 .box-c .r .item .labels .label{
        padding: 0 14px
    }
    .box4 .box-c .r .item .picCover{
        padding-top: 35%;
    }
    .box1 .box-c .item-r{
        width: 21%;
    }
    .box1 .box-c .item-l{
        width:70%
    }
    .box4 .box-c .l{
        top: 149px;
    }
    .box4 .box-c .l .icon img{
        width: 103px;
    }
    .box4 .box-c .l .text-box{
        margin-top: 49px;
    }
    .box4 .box-c .l .more{
        margin-top: 68px;
        width: 134px;
        height: 134px;
        font-size: 14px;
    }
    .box4 .box-c .l .more .iconfont{
        margin-top: 0;
        font-size: 16px;
    }
    .box4 .box-c .r .item .text-title{
        font-size: 20px;
    }
    .box4 .box-c .r .item{
        width: 48%;
    }
}
@media (max-width: 1199px) {
    .box2 .bg{
        margin-top: 0;
    }
    .main-swiper>.swiper-wrapper{
        display: block;
    }
    .banner .swiper-slide .pic img,
    .main-slide,
    .main-swiper{
        height: auto;
    }
    .box1{
        padding-top: 80px;
    }
    .box4 .box-c,
    .box2{
        padding: 80px 0;
    }
    .box3 .box-c{
        padding: 130px 0;
    }
    .box2 .box-c,
    .box1 .box-c{
        margin-top: 45px;
    }
    .box1 .box-c .item:not(:last-child){
        margin-bottom: 45px;
    }
    .box1 .box-c .item-l2 .text{
        transform: translateX(-20%);
    }
    .box1 .box-c .item-l2 .text-box p:not(:last-child){
        margin-bottom: .49em;
    }
    .box2 .box-c .swiper-slide-b, .box2 .box-c .swiper-slide-t{
        padding: 24px;
    }
    .box2 .box-c .swiper-slide-t .text-title,
    .box2 .box-c .swiper-slide-b-t{
        font-size: 20px;
    }
    .box2 .box-c .swiper-slide{
        width: 180px;
        height: 180px;
    }
    .box2 .box-c .swiper-slide:hover{
        width: 300px;
        height: 240px;
    }
    .box2 .box-c .swiper-slide-t .text{
        margin-top: 25px;
    }
    .box2 .box-c .swiper-slide-t .more{
        margin-top: 43px;
    }
    .box2 .box-c .swiper{
        height: 240px;
    }
    .box2 .btns .btn{
        width: 48px;
        height: 48px;
    }
    .box2 .btns .btn .iconfont{
        font-size: 16px;
    }
    .box1 .box-c .item-l1 .list .text{
        font-size: 16px;
    }
    .box4 .box-c .l .icon img{
        width: 86px;
    }
    .box3{
        padding-top: 0;
    }
    .box4{
        margin-top: 80px;
        min-height: 0;
    }
}
@media (max-width: 1024px) {
    .box2 .box-c .swiper-slide-b .text-des, .box2 .box-c .swiper-slide-t .text-des, .box1 .box-c .item-l1 .text-box, .box1 .box-c .item-l2 .text-box{
        font-size: 22px;
    }
    .box4{
        margin-top: 70px;
    }
    .box4 .box-c .r .item .text-title{
        font-size: 20px;
    }
    .box4 .box-c .r{
        width: 100%;
        margin-top: 40px;
    }
    .box4 .box-c .l .icon img{
        width: 68px;
    }
    .box4 .box-c .l .text-box{
        margin-top: 30px;
    }
    .box4 .box-c .l .text-box p:not(:last-child){
        margin-bottom: .5em;
    }
    .box4 .box-c .l{
        position: relative;
        top: 0;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 0 !important;
    }
    .box4 .box-c .l .more{
        margin-top: 0;
    }
    .box4 .box-c{
        flex-direction: column;
    }
    .box2 .btns{
        /* margin-top: 40px; */
        top: -10px;
    }
    .box1 .box-c .item-l{
        /* width: 57%; */
    }
    .box1 .box-c .item-l1 .list{
        width: 120%;
    }
    .box1 .box-c .item-l2 .text{
        transform: translateX(0%);
    }
    .box1{
        padding-top: 70px;
    }
    .box4 .box-c,
    .box2{
        padding: 70px 0;
    }
    .box3 .box-c{
        padding: 110px 0;
    }
    .box2 .box-c,
    .box1 .box-c{
        margin-top: 40px;
    }
    .box1 .box-c .item:not(:last-child){
        margin-bottom: 40px;
    }
    .box3 .box-c .playBtn{
        width: 70px;
        height: 70px;
        margin-top: 20px;
    }
}
@media (max-width: 768px) {
    .box2 .box-c .swiper-slide-b .text-des, .box2 .box-c .swiper-slide-t .text-des, .box1 .box-c .item-l1 .text-box, .box1 .box-c .item-l2 .text-box{
        font-size: 20px;
    }
    .box4{
        margin-top: 60px;
    }
    .box4 .box-c .r .item .text-title{
        -webkit-line-clamp: 1;
    }
    .box4 .box-c .r .item:nth-child(2n){
        padding-top: 10%;
    }
    .box4 .box-c .l .text-box{
        margin-top: 25px;
    }
    .box4 .box-c .r li:not(:last-child){
        /* margin-bottom: 30px; */
    }
    .box4 .box-c .r .item .labels .label{
        padding: 0 14px;
        line-height: 30px;
    }
    .box4 .box-c .l .more{
        font-size: 12px;
        width: 120px;
        height: 120px;
    }
    .box4 .box-c .r .item .text-title{
        font-size: 18px;
    }
    .box4 .box-c .r .item .date{
        margin-top: 14px;
    }
    .box4 .box-c .r .item .labels{
        margin-top: 14px;
    }
    .box3 .box-c .playBtn{
        width: 50px;
        height: 50px;
    }
    .box3 .box-c .playBtn .iconfont{
        font-size: 20px;
    }
    .box2 .btns{
        /* margin-top: 30px; */
    }
    .box1 .box-c .item-l1 .list{
        margin-top: 25px;
    }
    .box1 .box-c .item-r{
        display: none;
    }
    .box1 .box-c .item-l1 .list{
        width: 100%;
    }
    .box1 .box-c .item-l{
        width: 100%;
    }
    .box1{
        padding-top: 60px;
    }
    .main-slide3 .box1{
        padding-top: 30px;
    }
    .box4 .box-c,
    .box2{
        padding: 60px 0;
    }
    .box3 .box-c{
        padding: 100px 0;
    }
    .box2 .box-c,
    .box1 .box-c{
        margin-top: 30px;
    }
    .box1 .box-c .item:not(:last-child){
        margin-bottom: 30px;
    }
}
@media (max-width: 500px) {
    .main-slide3 .box1{
        padding-top: 20px;
    }
    .box1 .box-c .item-l1 .list{
        flex-direction: column;
        gap: 20px;
    }
    .box1 .box-c .item-l1 .list li{
        display: flex;
        flex-direction: row-reverse;
        justify-content: space-between;
        align-items: center;
    }
    .box1 .box-c .item-l1 .list .text{
        margin-top: 0;
    }
    .box4{
        margin-top: 50px;
    }
    .box4 .box-c .l .text-box .font30{
        font-size: 18px;
    }
    .box4 .box-c .l .text-box .font36{
        font-size: 20px;
    }
    .box4 .box-c .r{
        flex-wrap: wrap;
    }
    .box4 .box-c .r .item:nth-child(2n){
        padding-top: 0;
        margin-top: 35px;
    }
    .box4 .box-c .r .item{
       width: 100%;
    }
    .box2 .btns .btn{
        width: 36px;
        height: 36px;
    }
    .box2 .btns .btn:last-child{
        margin-left: -5px;
    }
    .box2 .box-c .swiper-slide-b, .box2 .box-c .swiper-slide-t{
        padding: 18px;
    }
    .box2 .box-c .swiper-slide-t .text-title, .box2 .box-c .swiper-slide-b-t{
        font-size: 16px;
    }
    .box2 .box-c .swiper-slide-b{
        opacity: 1 !important;
    }
    .box2 .box-c .swiper-slide-t{
        opacity: 0 !important;
        visibility: hidden !important;
    }
    .box2 .box-c .swiper-slide-b .text-title{
        font-size: 14px;
    }
    .box2 .box-c .swiper-slide-b .text-des{
        font-size: 18px;
    }
    .box2 .box-c .swiper-slide:hover,
    .box2 .box-c .swiper-slide{
        width: 140px;
        height: 140px;
    }
    .box2 .box-c .swiper{
        height: 140px;
    }
    .box2 .btns{
        /* margin-top: 25px; */
    }
    .box1{
        padding-top: 50px;
    }
    .box4 .box-c,
    .box2{
        padding: 50px 0;
    }
    .box3 .box-c{
        padding: 70px 0;
    }
    .box2 .box-c,
    .box1 .box-c{
        margin-top: 25px;
    }
    .box1 .box-c .item:not(:last-child){
        margin-bottom: 25px;
    }
    .box1 .box-c .item-l2 .text{
        font-size: 24px;
    }
}