.sec1 {
    padding: 185px 0 130px;
}

.sec1 .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sec1 .wrap .l {
    width: 685px;
}

.sec1 .wrap .l .title {
    margin: 0 0 45px;
}

.sec1 .wrap .l .title h1 {
    font-weight: bold;
    font-size: 36px;
    color: #F44D00;
}

.sec1 .wrap .l .title h2 {
    font-weight: 500;
    font-size: 36px;
    color: #111111;
}

.sec1 .wrap .l .text {
    font-weight: 400;
    font-size: 16px;
    color: #444444;
    line-height: 32px;
}

.sec1 .wrap .l .text span {
    font-weight: bold;
}

.sec1 .wrap .img {
    transition: 3s;
    clip-path: polygon(50% 50%, 50% 50%, 50% 50%, 50% 50%);
}

.sec1 .wrap .img.aos-animate {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
}

.sec2 {
    position: relative;
    padding: 192px 0 284px;
    width: 100vw;
    overflow: hidden;
}

.sec2 .bg {
    width: 100%;
    position: absolute;
    width: 100%;
    height: 100%;
    max-width: unset;
    max-height: unset;
    z-index: -1;
    top: 0;
}

.sec2 .swiper_box {
    position: relative;
}

.sec2 .swiper_box .sec2_swiper1 {
    width: 800px;
}

.sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide {
    position: relative;
}

.sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide p {
    font-weight: 500;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 36px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -30%);
    width: 100%;
    opacity: 0;
}

.sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide .year {
    font-weight: bold;
    font-size: 150px;
    color: #010101;
    line-height: 1;
    text-align: center;
    opacity: 0;
}

.sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide.swiper-slide-active p {
    opacity: 1;
    transform: translate(-50%, -50%);
    transition: 0.6s;
}

.sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide.swiper-slide-active .year {
    opacity: 0.05;
    transition: 0.6s;
}

.sec2 .swiper_box .btns {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 1400px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.sec2 .swiper_box .btns .iconfont {
    font-size: 36px;
    color: #FFFFFF;
    opacity: 0.5;
    cursor: pointer;
    pointer-events: auto;
    transition: 0.6s;
}

.sec2 .swiper_box .btns .iconfont:nth-child(1) {
    transform: rotateY(180deg);
}

.sec2 .swiper_box .btns .iconfont:hover {
    opacity: 1;
}

.sec2 .line {
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    margin: 105px 0 70px;
    position: relative;
    width: 100vw;
    transition: 0.6s;
}

.sec2 .line .line_img {
    display: flex;
    width: max-content;
    position: relative;
    transition: 1s;
}

.sec2 .line .line_img img {
    display: block;
    height: 10px;
}

.sec2 .line .line_img img:not(:nth-child(1)) {
    transform: translateX(-2px);
}

.sec2 .line .line_center {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 20px;
}

.sec2 .line .line_center .l {
    width: 2px;
    height: 20px;
    background: #FFFFFF;
    transform: scaleY(0);
    transform-origin: bottom;
}

.sec2 .line .line_center.on .l {
    transform: scaleY(1);
    transition: 0.4s;
}

.sec2 .line .line_center.on:after {
    transform: translate(-50%, -100%);
    opacity: 1;
    transition: 0.4s;
}

.sec2 .line .line_center.on:before {
    transform: translate(-50%, 100%);
    opacity: 1;
    transition: 0.4s;
}

.sec2 .line .line_center:after {
    content: "";
    width: 10px;
    height: 9px;
    background: #F44D00;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translate(-50%, -140%);
    opacity: 0;
}

.sec2 .line .line_center:before {
    content: "";
    width: 10px;
    height: 9px;
    background: #F44D00;
    clip-path: polygon(50% 0, 100% 100%, 0% 100%);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translate(-50%, 140%);
    opacity: 0;
}

.sec2 .sec2_swiper2 {
    width: 640px;
    height: 34px;
}

.sec2 .sec2_swiper2 .swiper-wrapper {
    align-items: center;
}

.sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide {
    font-weight: 500;
    font-size: 18px;
    line-height: 34px;
    color: #FFFFFF;
    transition: 0.6s;
}

.sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide.swiper-slide-active {
    font-size: 24px;
    color: #F44D00;
}

.sec3 {
    background: #F5F5F5;
    padding: 106px 0 216px;
}

.sec3 .wrap {
    width: 1740px;
}

.sec3 .wrap .title {
    width: 1400px;
    margin: 0 auto 135px;
    display: flex;
    justify-content: space-between;
}

.sec3 .wrap .title .l h1 {
    font-weight: 400;
    font-size: 36px;
    color: #111111;
}

.sec3 .wrap .title .l h2 {
    font-weight: bold;
    font-size: 36px;
    color: #F44D00;
}

.sec3 .wrap .title .r {
    display: flex;
}

.sec3 .wrap .title .r .sq {
    width: 15px;
    height: 15px;
    margin-right: 18px;
    position: relative;
}

.sec3 .wrap .title .r .sq:after {
    content: "";
    width: 10px;
    height: 10px;
    background: #F44D00;
    opacity: 0.33;
    position: absolute;
    left: 10px;
    top: 10px;
}

.sec3 .wrap .title .r .sq:before {
    content: "";
    width: 15px;
    height: 15px;
    background: #F44D00;
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
}

.sec3 .wrap .title .r p {
    font-weight: 500;
    font-size: 20px;
    color: #F44D00;
    line-height: 1;
}

.sec3 .wrap .swiper_box {
    position: relative;
}

.sec3 .wrap .swiper_box .bg {
    width: 100vw;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 60px;
}

.sec3 .wrap .swiper_box .bg img {
    display: block;
    width: 100%;
    max-width: unset;
}

.sec3 .wrap .swiper_box .swiper .swiper-wrapper {
    align-items: center;
    transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
}

.sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img {
    height: 360px;
    margin: 0 0 100px;
  display: flex;
  align-items: center;
}

.sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide p {
    font-weight: 500;
    font-size: 20px;
    color: #111111;
    text-align: center;
    opacity: 0;
    transition: 0.6s;
}

.sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide.swiper-slide-active p {
    opacity: 1;
}

.sec3 .wrap .swiper_box .btns {
    width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.sec3 .wrap .swiper_box .btns .iconfont {
    font-size: 36px;
    color: #111111;
    opacity: 0.3;
    cursor: pointer;
    pointer-events: auto;
    transition: 0.6s;
}

.sec3 .wrap .swiper_box .btns .iconfont:nth-child(1) {
    transform: rotateY(180deg);
}

.sec3 .wrap .swiper_box .btns .iconfont:hover {
    opacity: 1;
}

.sec4 {
    width: 100vw;
    overflow: hidden;
    background: #F5F5F5;
    padding: 100px 0 225px;
    position: relative;
}

.sec4 .box {
    width: calc((100vw - 1400px) / 2 + 960px);
    height: 640px;
    background: #FFFFFF;
    position: absolute;
    top: 0;
    left: 0;
}

.sec4 .wrap {
    display: flex;
    align-items: center;
    width: fit-content;
    margin: 0 0 0 calc((100vw - 1400px) / 2);
}

.sec4 .wrap .l {
    width: 400px;
    margin: 0 100px 0 0;
    position: relative;
    z-index: 10;
}

.sec4 .wrap .l .title h1 {
    font-weight: bold;
    font-size: 36px;
    color: #111111;
    line-height: 1;
    margin-bottom: 30px;
}

.sec4 .wrap .l .title .pick {
    font-weight: 400;
    font-size: 16px;
    color: #444444;
    line-height: 32px;
    height: 96px;
    margin: 0 0 106px;
}

.sec4 .wrap .l .swiper-pagination {
    position: unset;
    text-align: left;
}

.sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: #CCCCCC;
    border-radius: 50%;
    opacity: 1;
    position: relative;
    margin: 0 20px 0 0;
    transition: 0.6s;
}

.sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:after {
    content: "";
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid #F44D00;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: 0.6s;
}

.sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:hover, .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active {
    background: #F44D00;
}

.sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:hover:after, .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active:after {
    opacity: 1;
}

.sec4 .wrap .r .swiper {
    width: 1420px;
}

.sec4 .wrap .r .swiper .swiper-wrapper {
    transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
}

.sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide .img {
    margin: 0 0 20px;
}

.sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide p {
    font-weight: 400;
    font-size: 18px;
    color: #111111;
    text-align: center;
}

@media screen and (max-width: 1920px) {
    .sec1 {
        padding: 9.6354166667vw 0 6.7708333333vw;
    }

    .sec1 .wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .sec1 .wrap .l {
        width: 35.6770833333vw;
    }

    .sec1 .wrap .l .title {
        margin: 0 0 2.34375vw;
    }

    .sec1 .wrap .l .title h1 {
        font-weight: bold;
        font-size: 1.875vw;
        color: #F44D00;
    }

    .sec1 .wrap .l .title h2 {
        font-weight: 500;
        font-size: 1.875vw;
        color: #111111;
    }

    .sec1 .wrap .l .text {
        font-weight: 400;
        font-size: 0.8333333333vw;
        color: #444444;
        line-height: 1.6666666667vw;
    }

    .sec1 .wrap .l .text span {
        font-weight: bold;
    }

    .sec1 .wrap .img {
        transition: 3s;
        clip-path: polygon(50% 50%, 50% 50%, 50% 50%, 50% 50%);
    }

    .sec1 .wrap .img.aos-animate {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
    }

    .sec2 {
        position: relative;
        padding: 10vw 0 14.7916666667vw;
        width: 100vw;
        overflow: hidden;
    }

    .sec2 .bg {
        width: 100%;
        position: absolute;
        width: 100%;
        height: 100%;
        max-width: unset;
        max-height: unset;
        z-index: -1;
        top: 0;
    }

    .sec2 .swiper_box {
        position: relative;
    }

    .sec2 .swiper_box .sec2_swiper1 {
        width: 41.6666666667vw;
    }

    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide {
        position: relative;
    }

    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide p {
        font-weight: 500;
        font-size: 1.25vw;
        color: #FFFFFF;
        line-height: 1.875vw;
        text-align: center;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -30%);
        width: 100%;
        opacity: 0;
    }

    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide .year {
        font-weight: bold;
        font-size: 7.8125vw;
        color: #010101;
        line-height: 1;
        text-align: center;
        opacity: 0;
    }

    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide.swiper-slide-active p {
        opacity: 1;
        transform: translate(-50%, -50%);
        transition: 0.6s;
    }

    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide.swiper-slide-active .year {
        opacity: 0.05;
        transition: 0.6s;
    }

    .sec2 .swiper_box .btns {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 72.9166666667vw;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        pointer-events: none;
    }

    .sec2 .swiper_box .btns .iconfont {
        font-size: 1.875vw;
        color: #FFFFFF;
        opacity: 0.5;
        cursor: pointer;
        pointer-events: auto;
        transition: 0.6s;
    }

    .sec2 .swiper_box .btns .iconfont:nth-child(1) {
        transform: rotateY(180deg);
    }

    .sec2 .swiper_box .btns .iconfont:hover {
        opacity: 1;
    }

    .sec2 .line {
        border-bottom: 0.0520833333vw solid rgba(255, 255, 255, 0.5);
        margin: 5.46875vw 0 3.6458333333vw;
        position: relative;
        width: 100vw;
        transition: 0.6s;
    }

    .sec2 .line .line_img {
        display: flex;
        width: max-content;
        position: relative;
        transition: 1s;
    }

    .sec2 .line .line_img img {
        display: block;
        /* height: 0.5208333333vw; */
    }

    .sec2 .line .line_img img:not(:nth-child(1)) {
        transform: translateX(-0.1041666667vw);
    }

    .sec2 .line .line_center {
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        /* height: 1.0416666667vw; */
    }

    /* .sec2 .line .line_center .l {
        width: 0.1041666667vw;
        height: 1.0416666667vw;
        background: #FFFFFF;
        transform: scaleY(0);
        transform-origin: bottom;
    } */

    .sec2 .line .line_center.on .l {
        transform: scaleY(1);
        transition: 0.4s;
    }

    .sec2 .line .line_center.on:after {
        transform: translate(-50%, -100%);
        opacity: 1;
        transition: 0.4s;
    }

    .sec2 .line .line_center.on:before {
        transform: translate(-50%, 100%);
        opacity: 1;
        transition: 0.4s;
    }

    /* .sec2 .line .line_center:after {
        content: "";
        width: 0.5208333333vw;
        height: 0.46875vw;
        background: #F44D00;
        clip-path: polygon(0 0, 100% 0, 50% 100%);
        position: absolute;
        top: -0.7291666667vw;
        left: 50%;
        transform: translate(-50%, -140%);
        opacity: 0;
    }

    .sec2 .line .line_center:before {
        content: "";
        width: 0.5208333333vw;
        height: 0.46875vw;
        background: #F44D00;
        clip-path: polygon(50% 0, 100% 100%, 0% 100%);
        position: absolute;
        bottom: -1.0416666667vw;
        left: 50%;
        transform: translate(-50%, 140%);
        opacity: 0;
    } */

    .sec2 .sec2_swiper2 {
        width: 33.3333333333vw;
        height: 1.7708333333vw;
    }

    .sec2 .sec2_swiper2 .swiper-wrapper {
        align-items: center;
    }

    .sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide {
        font-weight: 500;
        font-size: 0.9375vw;
        line-height: 1.7708333333vw;
        color: #FFFFFF;
        transition: 0.6s;
    }

    .sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide.swiper-slide-active {
        font-size: 1.25vw;
        color: #F44D00;
    }

    .sec3 {
        background: #F5F5F5;
        padding: 5.5208333333vw 0 11.25vw;
    }

    .sec3 .wrap {
        width: 90.625vw;
    }

    .sec3 .wrap .title {
        width: 72.9166666667vw;
        margin: 0 auto 7.03125vw;
        display: flex;
        justify-content: space-between;
    }

    .sec3 .wrap .title .l h1 {
        font-weight: 400;
        font-size: 1.875vw;
        color: #111111;
    }

    .sec3 .wrap .title .l h2 {
        font-weight: bold;
        font-size: 1.875vw;
        color: #F44D00;
    }

    .sec3 .wrap .title .r {
        display: flex;
    }

    .sec3 .wrap .title .r .sq {
        width: 0.78125vw;
        height: 0.78125vw;
        margin-right: 0.9375vw;
        position: relative;
    }

    .sec3 .wrap .title .r .sq:after {
        content: "";
        width: 0.5208333333vw;
        height: 0.5208333333vw;
        background: #F44D00;
        opacity: 0.33;
        position: absolute;
        left: 0.5208333333vw;
        top: 0.5208333333vw;
    }

    .sec3 .wrap .title .r .sq:before {
        content: "";
        width: 0.78125vw;
        height: 0.78125vw;
        background: #F44D00;
        position: absolute;
        z-index: 2;
        top: 0;
        left: 0;
    }

    .sec3 .wrap .title .r p {
        font-weight: 500;
        font-size: 1.0416666667vw;
        color: #F44D00;
        line-height: 1;
    }

    .sec3 .wrap .swiper_box {
        position: relative;
    }

    .sec3 .wrap .swiper_box .bg {
        width: 100vw;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 3.125vw;
    }

    .sec3 .wrap .swiper_box .bg img {
        display: block;
        width: 100%;
        max-width: unset;
    }

    .sec3 .wrap .swiper_box .swiper .swiper-wrapper {
        align-items: center;
        transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
    }

    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img {
        height: 18.75vw;
        margin: 0 0 5.2083333333vw;
    }

    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide p {
        font-weight: 500;
        font-size: 1.0416666667vw;
        color: #111111;
        text-align: center;
        opacity: 0;
        transition: 0.6s;
    }

    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide.swiper-slide-active p {
        opacity: 1;
    }

    .sec3 .wrap .swiper_box .btns {
        width: 72.9166666667vw;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        z-index: 3;
    }

    .sec3 .wrap .swiper_box .btns .iconfont {
        font-size: 1.875vw;
        color: #111111;
        opacity: 0.3;
        cursor: pointer;
        pointer-events: auto;
        transition: 0.6s;
    }

    .sec3 .wrap .swiper_box .btns .iconfont:nth-child(1) {
        transform: rotateY(180deg);
    }

    .sec3 .wrap .swiper_box .btns .iconfont:hover {
        opacity: 1;
    }

    .sec4 {
        width: 100vw;
        overflow: hidden;
        background: #F5F5F5;
        padding: 5.2083333333vw 0 11.71875vw;
        position: relative;
    }

    .sec4 .box {
        width: calc((100vw - 72.916666666666666666666vw) / 2 + 50vw);
        height: 33.3333333333vw;
        background: #FFFFFF;
        position: absolute;
        top: 0;
        left: 0;
    }

    .sec4 .wrap {
        display: flex;
        align-items: center;
        width: fit-content;
        margin: 0 0 0 calc((100vw - 72.916666666666666666666vw) / 2);
    }

    .sec4 .wrap .l {
        width: 20.8333333333vw;
        margin: 0 5.2083333333vw 0 0;
        position: relative;
        z-index: 10;
    }

    .sec4 .wrap .l .title h1 {
        font-weight: bold;
        font-size: 1.875vw;
        color: #111111;
        line-height: 1;
        margin-bottom: 1.5625vw;
    }

    .sec4 .wrap .l .title .pick {
        font-weight: 400;
        font-size: 0.8333333333vw;
        color: #444444;
        line-height: 1.6666666667vw;
        height: 5vw;
        margin: 0 0 5.5208333333vw;
    }

    .sec4 .wrap .l .swiper-pagination {
        position: unset;
        text-align: left;
    }

    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet {
        width: 0.5208333333vw;
        height: 0.5208333333vw;
        background: #CCCCCC;
        border-radius: 50%;
        opacity: 1;
        position: relative;
        margin: 0 1.0416666667vw 0 0;
        transition: 0.6s;
    }

    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:after {
        content: "";
        width: 1.0416666667vw;
        height: 1.0416666667vw;
        border-radius: 50%;
        border: 0.0520833333vw solid #F44D00;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: 0.6s;
    }

    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:hover, .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active {
        background: #F44D00;
    }

    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:hover:after, .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active:after {
        opacity: 1;
    }

    .sec4 .wrap .r .swiper {
        width: 73.9583333333vw;
    }

    .sec4 .wrap .r .swiper .swiper-wrapper {
        transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
    }

    .sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide .img {
        margin: 0 0 1.0416666667vw;
    }

    .sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide p {
        font-weight: 400;
        font-size: 0.9375vw;
        color: #111111;
        text-align: center;
    }

    .sec1 .wrap .img{
        width: 31.25vw;
    }
}
@media screen and (max-width: 1024px) {
    .sec1 .wrap{
        width: 90%;
        flex-direction: column;
    }
    .sec1 .wrap .l .title h2,
    .sec1 .wrap .l .title h1{
        font-size: 28px;
    }
    .sec1 .wrap .l .text{
        font-size: 14px;
        line-height: 2;
    }
    .sec1{
        padding: 120px 0 60px;
    }
    .sec1 .wrap .l{
        width: 100%;
    }
    .sec1 .wrap .l .title {
        margin-bottom: 20px;
    }
    .sec1 .wrap .img{
        width: 100%;
        margin-top: 20px;
        clip-path:none
    }
    .sec1 .wrap .img img{
        width: 100%;
    }
    .sec2 .swiper_box .sec2_swiper1{
        width: 100%;
    }
    .sec2 .swiper_box .btns{
        width: 80px;
        position: static;
        transform: none;
        margin: 0 auto;
    }
    .sec2 .swiper_box .btns .iconfont{
        font-size: 24px;
    }
    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide p{
        font-size: 20px;
        line-height: 2;
    }
    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide .year{
        font-size: 100px;
    }
    .sec2 .sec2_swiper2{
        width: 70%;
    }
    .sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide{
        font-size: 16px;
        text-align: center;
    }
    .sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide.swiper-slide-active{
        font-size: 20px;
    }
    .sec2 .sec2_swiper2{
        height: 30px;
    }
    .sec2 .sec2_swiper2 .swiper-wrapper .swiper-slide{
        line-height: 30px;
    }
    .sec2 .line{
        border-bottom-width: 1px;
        margin: 80px 0 40px;
    }
    .sec2 .swiper_box{
        width: 90%;
        margin: 0 auto;
    }
    .sec2 .line .line_center::before,
    .sec2 .line .line_center:after {
        width: 8px;
        height: 8px;
    }
    .sec2 .line .line_center:after {
        top: -10px;
    }
    .sec2 .line .line_center:before{
        bottom: -14px;
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img {
        height: auto;
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img img{
        width: 100%;
    }
    .sec3 .wrap .swiper_box .btns{
        font-size: 14px;
        width: 80px;
        position: static;
        transform: none;
        margin-top: 30px;
    }
    .sec3 .wrap .swiper_box .btns .iconfont{
        font-size: 20px;
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img {
        margin-bottom: 50px;
    }
    .sec3{
        padding: 60px 0;
    }
    .sec3 .wrap .swiper_box .bg{
        bottom:calc(120px - 3vw);
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide p{
        font-size: 14px;
    }
    .sec2{
        padding: 60px 0;
    }
    .sec3 .wrap .title{
        width: 100%;
        margin-bottom: 40px;
    }
    .sec3 .wrap .title .l h2,
    .sec3 .wrap .title .l h1{
        font-size: 28px;
    }
    .sec3 .wrap .title .r p{
        font-size: 16px;
    }
    .sec3 .wrap .title .r .sq{
        width: 16px;
        height: 16px;
        margin-right: 10px;
    }
    .sec3 .wrap .title .r .sq:before{
        width: 12px;
        height: 12px;
    }
    .sec3 .wrap .title .r .sq:after{
        width: 6px;
        height: 6px;
    }
    .sec3 .wrap .title .r{
        align-self: center;
    }
    .sec3 .wrap .title .r .sq:after{
        left: auto;
        top: auto;
        bottom: 0;
        right: 0;
    }
    .sec4 .box{
        display: none;
    }
    .sec4{
        padding: 60px 0;
    }
    .sec4 .wrap{
        margin-left: 5vw;
        flex-direction: column;
    }
    .sec4 .wrap .l{
        width: 100%;
        margin-bottom: 30px;
        margin-right: 0;
    }
    .sec4 .wrap .l .title h1{
        font-size: 24px;
        margin-bottom: 20px;
    }
    .sec4 .wrap .l .title .pick{
        font-size: 14px;
        line-height: 2;
        margin-bottom: 20px;
    }
    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet{
        width: 8px;
        height: 8px;
        margin-right: 10px;
    }
    .sec4 .wrap .l .swiper-pagination .swiper-pagination-bullet:after{
        width: 14px;
        height: 14px;
        border-width: 1px;
    }
    .sec4 .wrap .r{
        width: 90vw;
    }
    .sec4 .wrap .r .swiper{
        width: 100%;
    }
    .sec4 .wrap .l .title .pick{
        height: auto;
    }
    .sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide p{
        font-size: 14px;
    }
    .sec4 .wrap .r .swiper .swiper-wrapper .swiper-slide .img{
        margin-bottom: 20px;
    }
}
@media screen and (max-width: 767px) {
    .sec1 .wrap .l .title h2, .sec1 .wrap .l .title h1{
        font-size: 24px;
    }
    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide p{
        font-size: 16px;
    }
    .sec1 {
        padding: 110px 0 50px;
    }
    .sec2,
    .sec3 {
        padding:50px 0;
    }
    .sec3 .wrap .swiper_box .bg {
        bottom: calc(110px - 2vw);
    }
    .sec3 .wrap .title .l h2, .sec3 .wrap .title .l h1{
        font-size: 24px;
    }
    .sec3 .wrap .title{
        flex-direction: column-reverse;
    }
    .sec3 .wrap .title .r {
        align-self: start;
        margin-bottom: 20px;
    }
    .sec3 .wrap .swiper_box .bg img{
        height: 40px;
    }
    .sec4 {
        padding: 50px 0;
    }
}
@media screen and (max-width: 540px) {
    .sec2 .swiper_box .sec2_swiper1 .swiper-wrapper .swiper-slide .year {
        font-size: 80px;
    }
    .sec2 .sec2_swiper2{
        width: 90%;
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide .img {
        margin-bottom: 30px;
    }
    .sec3 .wrap .swiper_box .bg {
        bottom: calc(100px - 5vw);
    }
    .sec3 .wrap .swiper_box .swiper .swiper-wrapper .swiper-slide p{
        opacity: 1;
    }

}
/*# sourceMappingURL=about.css.map */