.header {
    border-bottom: 1px solid rgba(220, 220, 220, 0.1);
}

.top_link {
    height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 60px;
    width: 100%;
    position: absolute;
    top: 100px;
}

.top_link .l {
    display: flex;
    align-items: center;
}

.top_link .l .iconfont {
    font-size: 12px;
    color: #FFFFFF;
    margin: 0 6px;
}

.top_link .l a {
    display: block;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    transition: 0.6s;
    position: relative;
}

.top_link .l a:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 1px;
    background: #FFFFFF;
    transform: scaleX(0);
    transition: 0.6s;
}

.top_link .l a:hover:after {
    transform: scaleX(1);
}

.top_link .r a:after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 1px;
    background: #FFFFFF;
    transform: scaleX(0);
    transition: 0.6s;
}

.top_link .r a:hover:after {
    transform: scaleX(1);
}

.top_link .l a.iconfont {
    font-size: 16px;
}

.top_link .r {
    display: flex;
    align-items: center;
    gap: 0 60px;
}

.top_link .r a {
    display: block;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    transition: 0.6s;
    position: relative;
}


.section1 {
    width: 100%;
    height: auto;
    position: relative;
    overflow: unset;
}

.section1 .img {
    width: 100%;
    height: auto;
    overflow: hidden;
}

.section1 .img img {
    width: 100%;
}

.section1 .box {
    position: absolute;
    top: 0;
    width: 700px;
    height: calc(100% - 200px);
    right: calc(50vw - 700px);
}

.section1 .box .content {
    position: sticky;
    top: 305px;
}

.section1 .box .content .title {
    margin-bottom: 50px;
}

.section1 .box .content .title .en {
    color: #fff;
    font-size: 72px;
    opacity: 0.1;
    font-weight: 200;
    margin-bottom: 20px;
}

.section1 .box .content .title .cn {
    color: #fff;
    font-size: 32px;
}

.section1 .box .content .text {
    color: #fff;
    font-size: 18px;
    line-height: 2;
    margin-bottom: 70px;
}

.section1 .box .content .text span {
    font-weight: 700;
}

.section1 .box .content .bottom {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #fff;
    border-radius: 50%;
    transform: rotate(90deg);
    animation: 2s mouse infinite linear;
    cursor: pointer;
    transition: 0.6s;
}

.section1 .box .content .bottom:hover {
    background: #FFFFFF;
}

.section1 .box .content .bottom span {
    color: #fff;
    display: block;
    transition: 0.6s;
}

.section1 .box .content .bottom:hover span {
    color: #2660AC;
}

.section2 .wrap {
    width: 1400px;
    margin: 0 auto;
    padding-top: 100px;
    padding-bottom: 200px;
    display: flex;
}

.section2 .wrap .left {
    width: 700px;
}

.section2 .wrap .left .title {
    margin-bottom: 50px;
}

.section2 .wrap .left .title h3 {
    font-size: 42px;
}

.section2 .wrap .left .title h3 span {
    font-weight: 400;
}

.section2 .wrap .left .text p {
    font-size: 16px;
    line-height: 36px;
    color: #1A1A1A;
}

.section2 .wrap .left .text p:not(:last-child) {
    margin-bottom: 40px;
}

.section2 .wrap .right {
    margin-left: 150px;
    display: flex;
    flex: 1;
    justify-content: space-between;
    grid-gap: 66px 0;
    padding-top: 50px;
    flex-wrap: wrap;
}

.section2 .wrap .right .item {
    width: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section2 .wrap .right .item .icon {
    width: 90px;
    height: 90px;
    margin-bottom: 14px;
}

.section2 .wrap .right .item .key {
    border-top: 1px solid #EEEEEE;
    padding-top: 18px;
    width: 100%;
    color: #666666;
    text-align: center;
    margin-bottom: 20px;
}

.section2 .wrap .right .item .value {
    color: #2660AC;
    font-size: 50px;
}

.section2 .wrap .right .item .value .num {
    font-weight: 200;
    text-align: center;
}

.section2 .wrap .right .item .value .num::after {
    content: attr(data-text);
    color: #666;
    font-weight: 400;
    font-size: 16px;
}

.section3 .wrap {
    height: 100vh;
    position: relative;
}

.section3 .wrap::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 452px;
    bottom: 0;
    z-index: 2;
    display: block;
    background: linear-gradient(0deg, #000000, rgba(0, 0, 0, 0));
    opacity: 0.7;
}

.section3 .wrap .swiper {
    width: 100%;
    height: 100%;
}

.section3 .wrap .swiper .swiper-slide-active .box .content,
.section3 .wrap .swiper .swiper-slide-active .box .title {
    opacity: 1;
    transform: translateY(0);
}

.section3 .wrap .swiper .swiper-slide-active .box .content {
    transition-delay: 0.3s;
}

.section3 .wrap .swiper .swiper-slide-active .bg img {
    transform: scale(1);
}

.section3 .wrap .swiper .bg {
    width: 100%;
    height: 100%;
    position: absolute;
}

.section3 .wrap .swiper .bg img {
    width: 100%;
    height: 100%;
    transform: scale(1.1);
    transition: cubic-bezier(0.77, 0, 0.175, 1) transform 2s;
}

.section3 .wrap .swiper .box {
    position: absolute;
    top: 150px;
    width: 1400px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.section3 .wrap .swiper .box .title {
    margin-bottom: 160px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s;
}

.section3 .wrap .swiper .box .title h3 {
    color: #fff;
    font-size: 42px;
}

.section3 .wrap .swiper .box .content {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s;
}

.section3 .wrap .swiper .box .content .value {
    min-width: 274px;
}

.section3 .wrap .swiper .box .content .value .num {
    font-size: 64px;
    font-weight: 700;
    color: #fff;
}

.section3 .wrap .swiper .box .content .value .num::after {
    content: attr(data-text);
    font-size: 18px;
    margin-left: 10px;
}

.section3 .wrap .swiper .box .content .line {
    width: 1px;
    height: 60px;
    background-color: #fff;
    margin: 0 80px;
}

.section3 .wrap .swiper .box .content .text {
    width: 270px;
    color: #fff;
    font-size: 18px;
    line-height: 2;
}

.section3 .wrap .page {
    position: absolute;
    bottom: 60px;
    z-index: 3;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.section3 .wrap .page .list {
    width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 90px;
    justify-content: center;
}

.section3 .wrap .page .list .item {
    padding-top: 20px;
    color: #FFFFFF;
    opacity: 0.5;
    transition: all 0.6s;
    position: relative;
    cursor: pointer;
}

.section3 .wrap .page .list .item::after {
    content: "";
    display: block;
    top: -1px;
    height: 1px;
    width: 100%;
    transform: scaleX(0);
    background-color: rgba(255, 255, 255, 0.78);
    position: absolute;
    transition: all 0.6s;
}

.section3 .wrap .page .list .item:hover,
.section3 .wrap .page .list .item.active {
    opacity: 0.78;
}

.section3 .wrap .page .list .item:hover::after,
.section3 .wrap .page .list .item.active::after {
    transform: scaleX(1);
}

@keyframes mouse {
    0% {
        transform: rotate(90deg) translateX(-50%) translateX(-5px);
    }
    50% {
        transform: rotate(90deg) translateX(-50%) translateX(5px);
    }
    100% {
        transform: rotate(90deg) translateX(-50%) translateX(-5px);
    }
}

.section4 {
    background: #F7F7F7;
    padding: 80px 0 124px;
}

.section4 .wrap {
    width: 1400px;
    margin: 0 auto;
}

.section4 .wrap .title {
    font-weight: bold;
    font-size: 42px;
    color: #1A1A1A;
    margin-bottom: 52px;
}

.section4 .wrap .sec4_swiper {
    width: 1920px;
}

.section4 .wrap .sec4_swiper .swiper-slide {
    width: 360px;
    height: auto;
    background: #FFFFFF;
    border-radius: 8px;
    padding: 15px 15px 30px;
}

.section4 .wrap .sec4_swiper .swiper-slide .img {
    width: 100%;
    height: 413px;
    background: #F7F7F7;
    border-radius: 8px;
    padding: 17px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section4 .wrap .sec4_swiper .swiper-slide p {
    padding: 0 7px;
    font-weight: 400;
    font-size: 16px;
    color: #1A1A1A;
    line-height: 28px;
    margin: 25px 0 0;
}

@media screen and (max-width: 1919px) {
    .top_link {
        height: 3.4375vw;
        padding: 0px 3.125vw;
        top: 5.2083333333vw;
    }

    .top_link .l .iconfont {
        font-size: 0.625vw;
        margin: 0px 0.3125vw;
    }

    .top_link .l a {
        font-size: 0.8333333333vw;
    }

    .top_link .l a::after {
        bottom: -0.2083333333vw;
    }

    .top_link .r a::after {
        bottom: -0.2083333333vw;
    }

    .top_link .l a.iconfont {
        font-size: 0.8333333333vw;
    }

    .top_link .r {
        gap: 0px 3.125vw;
    }

    .top_link .r a {
        font-size: 0.8333333333vw;
    }

    .section1 .box {
        width: 36.4583333333vw;
        height: calc(100% - 10.4166666667vw);
        right: calc(-36.4583333333vw + 50vw);
    }

    .section1 .box .content {
        top: 15.8854166667vw;
    }

    .section1 .box .content .title {
        margin-bottom: 2.6041666667vw;
    }

    .section1 .box .content .title .en {
        font-size: 3.75vw;
        margin-bottom: 1.0416666667vw;
    }

    .section1 .box .content .title .cn {
        font-size: 1.6666666667vw;
    }

    .section1 .box .content .text {
        font-size: 0.9375vw;
        margin-bottom: 3.6458333333vw;
    }

    .section1 .box .content .bottom {
        width: 2.6041666667vw;
        height: 2.6041666667vw;
    }

    .section2 .wrap {
        width: 72.9166666667vw;
        padding-top: 5.2083333333vw;
        padding-bottom: 10.4166666667vw;
    }

    .section2 .wrap .left {
        width: 36.4583333333vw;
    }

    .section2 .wrap .left .title {
        margin-bottom: 2.6041666667vw;
    }

    .section2 .wrap .left .title h3 {
        font-size: 2.1875vw;
    }

    .section2 .wrap .left .text p {
        font-size: 0.8333333333vw;
        line-height: 1.875vw;
    }

    .section2 .wrap .left .text p:not(:last-child) {
        margin-bottom: 2.0833333333vw;
    }

    .section2 .wrap .right {
        margin-left: 7.8125vw;
        gap: 3.4375vw 0px;
        padding-top: 2.6041666667vw;
    }

    .section2 .wrap .right .item {
        width: 10.4166666667vw;
    }

    .section2 .wrap .right .item .icon {
        width: 4.6875vw;
        height: 4.6875vw;
        margin-bottom: 0.7291666667vw;
    }

    .section2 .wrap .right .item .key {
        padding-top: 0.9375vw;
        margin-bottom: 1.0416666667vw;
    }

    .section2 .wrap .right .item .value {
        font-size: 2.6041666667vw;
    }

    .section2 .wrap .right .item .value .num::after {
        font-size: 0.8333333333vw;
    }

    .section3 .wrap::after {
        height: 23.5416666667vw;
    }

    .section3 .wrap .swiper .box {
        top: 7.8125vw;
        width: 72.9166666667vw;
    }

    .section3 .wrap .swiper .box .title {
        margin-bottom: 8.3333333333vw;
        transform: translateY(1.0416666667vw);
    }

    .section3 .wrap .swiper .box .title h3 {
        font-size: 2.1875vw;
    }

    .section3 .wrap .swiper .box .content {
        transform: translateY(1.0416666667vw);
    }

    .section3 .wrap .swiper .box .content .value {
        min-width: 14.2708333333vw;
    }

    .section3 .wrap .swiper .box .content .value .num {
        font-size: 3.3333333333vw;
    }

    .section3 .wrap .swiper .box .content .value .num::after {
        font-size: 0.9375vw;
        margin-left: 0.5208333333vw;
    }

    .section3 .wrap .swiper .box .content .line {
        height: 3.125vw;
        margin: 0px 4.1666666667vw;
    }

    .section3 .wrap .swiper .box .content .text {
        width: 14.0625vw;
        font-size: 0.9375vw;
    }

    .section3 .wrap .page {
        bottom: 3.125vw;
    }

    .section3 .wrap .page .list {
        width: 72.9166666667vw;
        gap: 4.6875vw;
    }

    .section3 .wrap .page .list .item {
        padding-top: 1.0416666667vw;
    }

    .section4 {
        padding: 4.1666666667vw 0px 6.4583333333vw;
    }

    .section4 .wrap {
        width: 72.9166666667vw;
    }

    .section4 .wrap .title {
        font-size: 2.1875vw;
        margin-bottom: 2.7083333333vw;
    }

    .section4 .wrap .sec4_swiper {
        width: 100vw;
    }

    .section4 .wrap .sec4_swiper .swiper-slide {
        width: 18.75vw;
        border-radius: 0.4166666667vw;
        padding: 0.78125vw 0.78125vw 1.5625vw;
    }

    .section4 .wrap .sec4_swiper .swiper-slide .img {
        height: 21.5104166667vw;
        border-radius: 0.4166666667vw;
        padding: 0.8854166667vw 1.5625vw;
    }

    .section4 .wrap .sec4_swiper .swiper-slide p {
        padding: 0px 0.3645833333vw;
        font-size: 0.8333333333vw;
        line-height: 1.4583333333vw;
        margin: 1.3020833333vw 0px 0px;
    }

    .section3 .wrap .page .list .item p,.section1 .box .content .bottom span {
        font-size: 0.8333333vw;
    }
}
@media screen and (max-width: 768px) {
    .section1 .box {
        width: 90%;
        left: 5vw;
    }
    .section2 .wrap {
        width: 90vw;
        display: block;
        padding: 50px 0;
    }
    .section2 .wrap .left {
        width: 100%;
    }
    .section2 .wrap .left .title h3 {
        font-size: 22px;
    }
    .section2 .wrap .left .title {
        margin-bottom: 20px;
    }
    .section2 .wrap .left .text p:not(:last-child) {
        margin-bottom: 15px;
    }
    .section2 .wrap .left .text p {
        font-size: 15px;
        line-height: 2;
    }
    .section2 .wrap .right {
        margin: 30px 0 0;
        padding: 0;
        flex-wrap: wrap;
    }
    .section2 .wrap .right .item {
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        border-bottom: 1px solid #cccccc;
        padding: 0 0 15px;
        margin-bottom: 20px;
    }
    .section2 .wrap .right .item .key {
        padding: 0;
        border: none;
        font-size: 18px;
        text-align: right;
    }
    .section2 .wrap .right .item .value .num::after {
        font-size: 14px;
    }
    .section2 .wrap .right .item .value .num {
        text-align: right;
    }
    .section2 .wrap .right .item .value {
        font-size: 30px;
    }
    .section2 .wrap .right .item .icon {
        width: 50px;
        height: 50px;
    }
    .section1 .box .content {
        position: unset;
    }
    .section1 {
        height: 100vh;
    }
    .section1 .img {
        height: 100%;
    }
    .section1 .img img {
        height: 100%;
    }
    .top_link {
        display: none;
    }
    .section1 .box {
        top: 110px;
        height: unset;
    }
    .section1 .box .content .title .en {
        font-size: 28px;
    }
    .section1 .box .content .title .cn {
        font-size: 24px;
    }
    .section1 .box .content .title {
        margin-bottom: 20px;
    }
    .section1 .box .content .text {
        font-size: 15px;
        line-height: 2;
        margin-bottom: 30px;
    }
    .section1 .box .content .bottom {
        width: 30px;
        height: 30px;
    }
    .section1 .box .content .bottom span {
        font-size: 12px;
    }
    .section4 {
        padding: 50px 0;
    }
    .section4 .wrap {
        width: 90%;
    }
    .section4 .wrap .title {
        font-size: 22px;
        margin-bottom: 30px;
    }
    .section4 .wrap .sec4_swiper .swiper-slide {
        border-radius: 6px;
        padding: 15px;
        height: fit-content;
    }
    .section4 .wrap .sec4_swiper .swiper-slide .img {
        height: 60vw;
        border-radius: 4px;
        padding: 20px 0;
    }
    .section4 .wrap .sec4_swiper .swiper-slide p {
        font-size: 15px;
        line-height: 1.6;
        margin: 15px 0 0;
        padding: 0 0 10px;
    }
    .section3 .wrap {
        height: unset;
    }
    .section3 .wrap .swiper .bg {
        position: unset;
    }
    .section3 .wrap .swiper .box .title h3 {
        font-size: 18px;
    }
    .section3 .wrap .page .list .item p, .section1 .box .content .bottom span {
        display: none;
    }
    .section3 .wrap .page .list .item::after {
        display: none;
    }
    .section3 .wrap .page {
        border: unset;
        bottom: 15px;
    }
    .section3 .wrap .page .list {
        gap: 10px;
    }
    .section3 .wrap .page .list .item {
        padding: 0;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #FFFFFF;
        opacity: 0.3;
    }
    .section3 .wrap .page .list .item.active {
        opacity: 1;
    }
    .section1 .box .content .bottom span {
        display: block !important;
    }
    .section4 {
        overflow: hidden;
    }
    .section1 .img img {
        filter: brightness(0.8);
    }
}