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

.header.header_on {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.top_link {
    height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 60px;
    width: 100%;
    position: fixed;
    top: 100px;
    z-index: 999;
}

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

.top_link .l .iconfont {
    font-size: 12px;
    color: #FFFFFF;
    margin: 0 6px;
    transition: 0.6s;
}

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

.top_link.on .l .iconfont, .top_link.on .l a, .top_link.on .r a {
    color: #1A1A1A;
}

.top_link .l a.iconfont {
    font-size: 16px;
}
.zi {
    position: fixed;
    z-index: 8;
    left: 5vw;
    bottom: 7vw;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
}
.jie {
    position: fixed;
    z-index: 8;
    left: 5vw;
    bottom: 5vw;
    font-weight: 400;
    font-size: 16px;
    color: #111111;
}
.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.on .l a:hover {
    color: #2461AD !important;
}

.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;
}

.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.on .r a:hover {
    color: #2461AD !important;
}

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

.section1 {
    overflow: unset;
}

.section1 .wrap .after {
    height: 100vh;
    background: linear-gradient(150deg, #0B59CD, #00387D);
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 10;
}

.section1 .wrap .after .cir {
    width: 662px;
    height: 662px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-direction: column;
}

.section1 .wrap .after .cir .bg {
    position: absolute;
}

.section1 .wrap .after .cir .bg img {
    animation: 30s width infinite linear;
}

.section1 .wrap .after .cir .logo {
    width: 196px;
    margin-bottom: 40px;
}

.section1 .wrap .after .cir .text {
    text-align: center;
}

.section1 .wrap .after .cir .text p {
    line-height: 36px;
    color: #fff;
    font-size: 24px;
}

.section1 .wrap .after .cir .mouse {
    width: 23px;
    height: 35px;
    border-radius: 20px;
    position: absolute;
    border: 1px solid #275EA7;
    bottom: 46px;
    animation: 2s mouse infinite linear;
}

.section1 .wrap .after .cir .mouse::after {
    width: 3px;
    height: 8px;
    background-color: #fff;
    content: "";
    position: absolute;
    left: 50%;
    border: 3px;
    top: 8px;
    transform: translateX(-50%);
}

.section1 .wrap .front {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.section1 .wrap .front .year {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    position: absolute;
    z-index: -1;
}

.section1 .wrap .front .year .num {
    height: 196px;
    overflow: hidden;
}

.section1 .wrap .front .year .num .list {
    font-size: 140px;
}

.section1 .wrap .front .year .num .list .item {
    font-weight: 700;
    line-height: 1.4;
    transition: all 0.6s;
    color: #1745A1;
}

.section1 .wrap .front .year.ash .num .list .item {
    color: #FAFAFA;
}

.section1 .wrap .front .year:after,
.section1 .wrap .front .year:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 50px;
    left: 0;
    z-index: 2;
}

.section1 .wrap .front .year::before {
    top: -1px;
    background: -webkit-gradient(linear, left top, left bottom, color-stop(30%, #fff), to(hsla(0, 0%, 100%, 0)));
    background: linear-gradient(180deg, #fff 30%, hsla(0, 0%, 100%, 0));
}

.section1 .wrap .front .year::after {
    bottom: -1px;
    background: -webkit-gradient(linear, left bottom, left top, from(#fff), to(hsla(0, 0%, 100%, 0)));
    background: linear-gradient(0deg, #fff 0, hsla(0, 0%, 100%, 0));
}

.section1 .wrap .front .scroll {
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.section1 .wrap .front .scroll .main {
    height: 100%;
    width: 100vw;
    transform: translateX(100%);
}

.section1 .wrap .front .scroll .main .list {
    height: 100%;
    display: flex;
    width: max-content;
    padding: 0 calc(50vw - 700px);
}

.section1 .wrap .front .scroll .main .list .item {
    display: flex;
    align-items: center;
    padding-left: 80px;
    position: relative;
}

.section1 .wrap .front .scroll .main .list .item:not(:last-child) {
    padding-right: 200px;
}

.section1 .wrap .front .scroll .main .list .item:not(:last-child)::after {
    position: absolute;
    right: 0;
    width: 1px;
    height: 230px;
    content: "";
    background-color: #EFEFEF;
}

.section1 .wrap .front .scroll .main .list .item .left {
    width: 622px;
    margin-right: 140px;
}

.section1 .wrap .front .scroll .main .list .item .left .y {
    margin-bottom: 40px;
}

.section1 .wrap .front .scroll .main .list .item .left .y h4 {
    color: #2461AD;
    font-size: 80px;
}

.section1 .wrap .front .scroll .main .list .item .left .content h5 {
    color: #1a1a1a;
    font-size: 20px;
    margin-bottom: 30px;
}

.section1 .wrap .front .scroll .main .list .item .left .content p {
    color: #333;
    font-size: 18px;
    line-height: 38px;
}

.section1 .wrap .front .scroll .main .list .item .right {
    height: 540px;
    align-items: center;
    display: flex;
    gap: 27px;
}

.section1 .wrap .front .scroll .main .list .item .right .img {
    border-radius: 10px;
    overflow: hidden;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(1) .right .img:nth-child(1) {
    margin-top: 70px;
    width: 914px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(1) .right .img:nth-child(2) {
    margin-top: -20px;
    width: 522px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(2) .right .img:nth-child(1) {
    margin-top: 50px;
    width: 636px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(3) .right .img:nth-child(1) {
    margin-top: 225px;
    width: 581px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(3) .right .img:nth-child(2) {
    margin-top: -150px;
    margin-left: -120px;
    width: 607px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(4) .right .img:nth-child(1) {
    margin-top: 20px;
    width: 715px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(5) .right .img:nth-child(1) {
    margin-top: -80px;
    width: 631px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(6) .right .img:nth-child(1) {
    margin-top: 170px;
    width: 557px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(7) .right {
    gap: 80px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(7) .right .img:nth-child(1) {
    margin-top: -30px;
    width: 621px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(7) .right .img:nth-child(2) {
    margin-top: 200px;
    width: 363px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(8) .right .img:nth-child(1) {
    margin-top: 200px;
    width: 580px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(9) .right .img:nth-child(1) {
    margin-top: 80px;
    width: 416px;
}

.section1 .wrap .front .scroll .main .list .item:nth-child(10) .right .img:nth-child(1) {
    margin-top: 110px;
    width: 956px;
}

.section1 .wrap .front .scroll .progress {
    position: absolute;
    height: 20px;
    display: flex;
    bottom: 0;
    width: 100vw;
    padding: 0 5vw;
}

.section1 .wrap .front .scroll .progress .item {
    flex: 1;
    height: 100%;
    position: relative;
    cursor: pointer;
}

.section1 .wrap .front .scroll .progress .item:hover .text {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.section1 .wrap .front .scroll .progress .item.on .text {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.section1 .wrap .front .scroll .progress .item .text {
    position: absolute;
    bottom: 40px;
    width: 90%;
    left: 50%;
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
    transition: all 0.6s;
    text-align: center;
}

.section1 .wrap .front .scroll .progress .item .text h4 {
    font-size: 20px;
    color: #0B59CD;
}

.section1 .wrap .front .scroll .progress .item .text p {
    font-size: 12px;
    white-space: nowrap;
}
html[lang='en'] .section1 .wrap .front .scroll .progress .item .text p {
    white-space: unset;
    width: 140px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}
.section1 .wrap .front .scroll .progress .item::after {
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    background-color: #2461AD;
    height: 100%;
    position: absolute;
    content: "";
}

.section1 .wrap .front .scroll .progress .line {
    width: 0;
    height: 8px;
    background-color: #00387D;
    position: absolute;
    left: 0;
    bottom: 0;
    transform-origin: left;
}

@keyframes width {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes mouse {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
    100% {
        transform: translateY(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.iconfont {
        font-size: 0.8333333333vw;
    }

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

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

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

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

    .section1 .wrap .after .cir {
        width: 34.4791666667vw;
        height: 34.4791666667vw;
    }

    .section1 .wrap .after .cir .logo {
        width: 10.2083333333vw;
        margin-bottom: 2.0833333333vw;
    }

    .section1 .wrap .after .cir .text p {
        line-height: 1.875vw;
        font-size: 1.25vw;
    }

    .section1 .wrap .after .cir .mouse {
        width: 1.1979166667vw;
        height: 1.8229166667vw;
        border-radius: 1.0416666667vw;
        bottom: 2.3958333333vw;
    }

    .section1 .wrap .after .cir .mouse::after {
        width: 0.15625vw;
        height: 0.4166666667vw;
        border: 0.15625vw;
        top: 0.4166666667vw;
    }

    .section1 .wrap .front .year .num {
        height: 10.2083333333vw;
    }

    .section1 .wrap .front .year .num .list {
        font-size: 7.2916666667vw;
    }

    .section1 .wrap .front .year::after, .section1 .wrap .front .year::before {
        height: 2.6041666667vw;
    }

    .section1 .wrap .front .scroll .main .list {
        padding: 0px calc(-36.4583333333vw + 50vw);
    }

    .section1 .wrap .front .scroll .main .list .item {
        padding-left: 4.1666666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:not(:last-child) {
        padding-right: 10.4166666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:not(:last-child)::after {
        height: 11.9791666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item .left {
        width: 32.3958333333vw;
        margin-right: 7.2916666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item .left .y {
        margin-bottom: 2.0833333333vw;
    }

    .section1 .wrap .front .scroll .main .list .item .left .y h4 {
        font-size: 4.1666666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item .left .content h5 {
        font-size: 1.0416666667vw;
        margin-bottom: 1.5625vw;
    }

    .section1 .wrap .front .scroll .main .list .item .left .content p {
        font-size: 0.9375vw;
        line-height: 1.9791666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item .right {
        height: 28.125vw;
        gap: 1.40625vw;
    }

    .section1 .wrap .front .scroll .main .list .item .right .img {
        border-radius: 0.5208333333vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(1) .right .img:nth-child(1) {
        margin-top: 3.6458333333vw;
        width: 47.6041666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(1) .right .img:nth-child(2) {
        margin-top: -1.0416666667vw;
        width: 27.1875vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(2) .right .img:nth-child(1) {
        margin-top: 2.6041666667vw;
        width: 33.125vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(3) .right .img:nth-child(1) {
        margin-top: 11.71875vw;
        width: 30.2604166667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(3) .right .img:nth-child(2) {
        margin-top: -7.8125vw;
        margin-left: -6.25vw;
        width: 31.6145833333vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(4) .right .img:nth-child(1) {
        margin-top: 1.0416666667vw;
        width: 37.2395833333vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(5) .right .img:nth-child(1) {
        margin-top: -4.1666666667vw;
        width: 32.8645833333vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(6) .right .img:nth-child(1) {
        margin-top: 8.8541666667vw;
        width: 29.0104166667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(7) .right {
        gap: 4.1666666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(7) .right .img:nth-child(1) {
        margin-top: -1.5625vw;
        width: 32.34375vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(7) .right .img:nth-child(2) {
        margin-top: 10.4166666667vw;
        width: 18.90625vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(8) .right .img:nth-child(1) {
        margin-top: 10.4166666667vw;
        width: 30.2083333333vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(9) .right .img:nth-child(1) {
        margin-top: 4.1666666667vw;
        width: 21.6666666667vw;
    }

    .section1 .wrap .front .scroll .main .list .item:nth-child(10) .right .img:nth-child(1) {
        margin-top: 5.7291666667vw;
        width: 49.7916666667vw;
    }

    .section1 .wrap .front .scroll .progress {
        height: 1.0416666667vw;
    }

    .section1 .wrap .front .scroll .progress .item .text {
        bottom: 2.0833333333vw;
        transform: translateX(-50%) translateY(1.0416666667vw);
    }

    .section1 .wrap .front .scroll .progress .item .text h4 {
        font-size: 1.0416666667vw;
    }

    .section1 .wrap .front .scroll .progress .item .text p {
        font-size: 0.625vw;
    }
    html[lang='en'] .section1 .wrap .front .scroll .progress .item .text p {
        width: 7.2916666666vw;
    }
    .section1 .wrap .front .scroll .progress .line {
        height: 0.4166666667vw;
    }
    .zi {
        font-size: 0.833333vw;
    }
    .jie {
        font-size: 0.833333vw;
    }
}
@media screen and (max-width: 768px) {
    .zi {
        position: unset;
        margin: 0 5vw 30px;
        font-size: 15px;
    }
    .jie {
        display: none;
    }
    .top_link {
        display: none;
    }
    .section1 .wrap .after {
        display: none;
    }
    .section1 .wrap .front {
        width: unset;
        height: unset;
    }
    .section1 .wrap .front .scroll {
        height: unset;
        position: unset;
    }
    .section1 .wrap .front .year {
        display: none;
    }
    .section1 .wrap .front .scroll .progress {
        display: none;
    }
    .section1 .wrap .front .scroll .main {
        transform: unset;
        width: 90vw;
        margin: 0 auto;
        height: unset;
        padding: 100px 0 60px;
    }
    .section1 .wrap .front .scroll .main .list {
        padding: 0;
        display: block;
        border-left: 1px solid #cccccc;
        width: 100%;
    }
    .section1 .wrap .front .scroll .main .list .item {
        margin-bottom: 40px;
    }
    .section1 .wrap .front .scroll .main .list .item .left {
        width: 100%;
        margin: 0 0 20px;
    }
    .section1 .wrap .front .scroll .main .list .item .left .y {
        margin-bottom: 15px;
    }
    .section1 .wrap .front .scroll .main .list .item .left .y h4 {
        font-size: 30px;
    }
    .section1 .wrap .front .scroll .main .list .item .left .content h5 {
        font-size: 18px;
        margin-bottom: 10px;
    }
    .section1 .wrap .front .scroll .main .list .item .left .content p {
        font-size: 15px;
        line-height: 1.8;
    }
    .section1 .wrap .front .scroll .main .list .item {
        padding: 0 0 0 30px !important;
        display: block;
    }
    .section1 .wrap .front .scroll .main .list .item:not(:last-child)::after {
        display: none;
    }
    .section1 .wrap .front .scroll .main .list .item .right {
        height: unset;
        gap: 18px;
    }
    .section1 .wrap .front .scroll .main .list .item .right .img {
        border-radius: 4px;
        margin: 0 !important;
    }
    .section1 .wrap .front .scroll .main .list .item .left .y {
        position: relative;
    }
    .section1 .wrap .front .scroll .main .list .item .left .y:after {
        content: "";
        position: absolute;
        left: -34px;
        top: 50%;
        transform: translateY(-50%);
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #2461AD;
    }
}