.about1 {
    padding: 90px 0;
}

.about1 .wp {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-flex-direction: row-reverse;
    flex-direction: row-reverse;
}

.about1 .pic {
    width: 40%;
    display: block;
    overflow: hidden;
}

.about1 .pic img {
    display: block;
    width: 100%;
    transition: all 0.3s ease 0s;
    -webkit-transition: all 0.3s ease 0s;
}

.about1 .txt {
    -webkit-flex: 1;
    flex: 1;
    margin: 0 0 0 75px;
    overflow: hidden;
}

.about1 .txt h1 {
    font-size: 34px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
}

.about1 .txt .t {
    margin-top: 50px;
    font-size: 18px;
    color: #666;
    line-height: 2.22;
}

.about1 .txt .t p ~ p {
    margin-top: 40px;
}

.about1 .txt .t strong {
    color: #333;
}

@keyframes scale2 {
    from {
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    50% {
        -webkit-transform: scale(1.4);
        transform: scale(1.4);
    }

    to {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

.about2 {
    padding: 25px 0;
}

.about2 .box {
    display: -webkit-flex;
    display: flex;
}

.about2 .pic {
    width: 58%;
    display: block;
    overflow: hidden;
}

.about2 .v {
    width: 100%;
    position: relative;
    display: block;
}

.about2 .v > img {
    display: block;
    width: 100%;
    transition: all 0.3s ease 0s;
    -webkit-transition: all 0.3s ease 0s;
}

.about2 .v:hover > img {
    transform: scale(1.01);
    -webkit-transform: scale(1.01);
}

.about2 .v .play {
    position: absolute;
    z-index: 10;
    left: calc(50% - 44px);
    top: calc(50% - 44px);
    width: 88px;
    height: 88px;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-align-items: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
}

.about2 .v .play::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    animation: scale2 2s linear infinite;
}

.about2 .v:hover::after {
    opacity: 1;
}

.about2 .pic p {
    font-size: 24px;
    color: #333;
    margin: 90px 0 0;
    text-align: center;
    font-weight: bold;
}

.about2 .pic p a {
    text-decoration: underline;
}

.about2 .txt {
    -webkit-flex: 1;
    flex: 1;
    padding: 60px 80px 0;
    text-align: center;
    overflow: hidden;
    box-sizing: border-box;
}

.about2 .txt h3 {
    font-size: 34px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
}

.about2 .txt p {
    margin-top: 20px;
    font-size: 20px;
    color: #666;
    line-height: 40px;
}

.about2 .txt .more {
    margin: 50px auto 0;
    color: #fff;
    font-size: 15px;
    width: 184px;
    height: 45px;
    line-height: 45px;
    border-radius: 25px;
    background: var(--btn-bg);
    display: inline-block;
    text-align: center;
}

.about2 .txt .more:hover {
    background: var(--btn-bg-hover);
}

.about2 .list {
    margin-top: -200px;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    -webkit-align-items: flex-end;
    align-items: flex-end;
}

.about2 .list .view {
    width: 460px;
    position: relative;
}

.about2 .list .view .arrow-left,
.about2 .list .view .arrow-right {
    background: rgba(0, 0, 0, 0.3);
    position: absolute;
    top: 50%;
    margin-top: -25px;
    width: 28px;
    height: 50px;
    z-index: 10;
    text-align: center;
}

.about2 .list .view .arrow-left {
    left: 0;
}

.about2 .list .view .arrow-right {
    right: 0;
}

.about2 .list .view .arrow-left i,
.about2 .list .view .arrow-right i {
    color: #fff;
    font-size: 15px;
    line-height: 50px;
}

.about2 .list .preview {
    width: 58%;
    overflow: hidden;
}

.about2 .list .preview .swiper-slide {
    cursor: pointer;
    display: inline-block;
    box-sizing: border-box;
    position: relative;
    margin-right: 24px;
}

.about2 .list .preview .swiper-slide::after {
    display: none;
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.about2 .list .preview .swiper-slide .pic {
    position: relative;
}

.about2 .list .preview .swiper-slide img {
    width: 100%;
}

.about2 .list .preview .swiper-slide.active-nav::after {
    display: block;
}

.about3 {
    padding: 70px 0 0;
    position: relative;
}

.about3::after {
    content: "";
    background: #F8F8F8;
    height: 195px;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.about3 .tit {
    text-align: center;
    position: relative;
    z-index: 10;
}

.about3 .tit h3 {
    font-size: 34px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
}

.about3 .tit p {
    font-size: 18px;
    color: #666;
    line-height: 2;
    max-width: 850px;
    margin: 30px auto 0;
}

.about3 .list {
    margin: 70px 0 0;
    box-shadow: 0 0 29px rgba(14, 4, 9, 0.09);
    padding: 70px;
    background: #fff;
    position: relative;
    z-index: 10;
}

.about3 ul {
    margin: 0 -35px;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
}

.about3 ul li {
    width: 33.33333333%;
    padding: 0 35px;
    text-align: center;
    position: relative;
}

.about3 ul li:not(:nth-child(3n+1))::after {
    content: "";
    width: 1px;
    height: 100%;
    background: #ddd;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
}

.about3 ul li:nth-child(-n+3) .box {
    padding-bottom: 30px;
}

.about3 ul li:nth-child(n+4) .box {
    border-top: 1px solid #ddd;
    padding-top: 30px;
}

.about3 ul li h6 {
    font-size: 56px;
    color: #212121;
    line-height: 1;
    font-weight: 700;
}

.about3 ul li h6 em {
    font-weight: 700;
}

.about3 ul li p {
    font-size: 18px;
    color: #666;
    margin-top: 15px;
}

.certlist {
    padding: 70px 0;
}

.certlist .list {
    margin: 60px 0 0;
    text-align: center;
    position: relative;
}

.certlist .swiper-box {
    overflow: hidden;
}

.certlist .swiper-slide {
    width: 300px;
    margin: 20px 0;
    background: #fff;
}

.certlist .swiper-slide a {
    width: 100%;
    display: block;
    box-shadow: rgba(0, 0, 0, 0.4) 0px 4px 10px 0px;
    padding: 10px 10px 0;
    background: #0cc5f1;
}

.certlist .swiper-slide img {
    width: 100%;
    display: block;
}

.certlist .swiper-slide a span {
    display: inline-block;
    padding: 5px 0;
    color: #fff;
    font-size: 16px;
}

.certlist .swiper-slide p {
    display: none;
    margin: 20px 0 0;
    color: #212121;
    font-size: 20px;
    text-transform: uppercase;
}

.certlist .swiper-slide.swiper-slide-active p {
    display: block;
}

.certlist .list .swiper-button-prev, .certlist .list .swiper-button-next {
    width: 49px;
    height: 67px;
    border-radius: 0;
    margin-top: -33px;
    text-align: center;
    background: #000;
}

.certlist .list .swiper-button-prev, .certlist .list .swiper-container-rtl .swiper-button-next {
    left: -70px;
    right: auto;
}

.certlist .list .swiper-button-next, .certlist .list .swiper-container-rtl .swiper-button-prev {
    right: -70px;
    left: auto;
}

.certlist .list .swiper-button-prev i, .certlist .list .swiper-button-next i {
    color: #fff;
    font-size: 23px;
    line-height: 49px;
}

.certlist .list .swiper-button-prev:hover, .certlist .list .swiper-button-next:hover {
    opacity: 0.6;
}

.certlist .list .swiper-button-prev::after, .certlist .list .swiper-button-next::after {
    content: none;
}

.certlist .swiper-pagination {
    display: none;
    position: static;
    width: 100%;
    margin-top: 20px;
}

.certlist .swiper-pagination-bullet {
    height: 10px;
    width: 10px;
    margin: 0 3px;
    background: none;
    border: 1px solid #336D4A;
    border-radius: 50%;
    opacity: 1;
    box-sizing: border-box;
}

.certlist .swiper-pagination-bullet-active {
    background: #336D4A;
}

.about_customize {
    margin: 50px 0;
}

.about_customize h3 {
    font-size: 34px;
    color: var(--tit-color);
    line-height: 1;
    font-weight: 700;
    text-align: center;
    text-transform: capitalize;
    margin-bottom: 30px;
}

.about_customize p {
    font-size: 18px;
    color: #666;
    line-height: 2;
    text-align: center;
    /*margin: 30px auto 0;*/
}

.about_customize ul {
    display: flex;
    flex-wrap: wrap;
}

.about_customize ul li {
    width: 33%;
    padding: 0 20px;
    margin: 10px 0;
}

.about_customize .text_list li {
    width: 33%;
    font-size: 17px;
}

.about_customize .text_list li:last-child {
    width: 100%;
}

.about_customize ul li .box {
    box-shadow: 1px 1px 5px #bbb;
    height: 100%;
}

.about_customize ul li .box .pic {

}

.about_customize ul li .box .pic img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.about_customize ul li .box .text {
    padding: 5px;
}

.about_customize ul li .box .text p {
    font-size: 18px;
}


.about4 {
    padding: 120px 0;
    background: #F8F8F8;
}

.about4 ul li {
    display: -webkit-flex;
    display: flex;
}

.about4 ul li + li {
    margin-top: 70px;
}

.about4 ul li .pic {
    width: 41%;
    overflow: hidden;
    display: flex;
    align-items: end;
}

.about4 ul li .pic img {
    display: block;
    width: 100%;
    transition: all 0.3s ease 0s;
    -webkit-transition: all 0.3s ease 0s;
}

.about4 ul li .txt {
    padding: 20px 0;
    -webkit-flex: 1;
    flex: 1;
    margin: 0 0 0 66px;
    overflow: hidden;
    box-sizing: border-box;
    border-bottom: 1px solid #D6D6D6;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-flex-direction: column;
    flex-direction: column;
}

.about4 ul li .txt h5 {
    font-size: 26px;
    color: #333;
    font-weight: bold;
}

.about4 ul li .txt p {
    font-size: 18px;
    color: #666;
    line-height: 2;
    margin: 25px 0 0;
    font-weight: bold;
}

.about4 ul li:nth-child(2n+1) {
    -webkit-flex-direction: row-reverse;
    flex-direction: row-reverse;
}

.about4 ul li:nth-child(2n+1) .txt {
    margin: 0 66px 0 0;
}

.about4 ul li .pic:hover img {
    transform: scale(1.05);
    -webkit-transform: scale(1.05);
}

@media screen and (max-width: 1440px) {

    .about_customize h3 {
        font-size: 32px;
    }

    .about1 .txt h1,
    .about2 .txt h3,
    .about3 .tit h3 {
        font-size: 32px;
    }

    .about1 .txt .t {
        margin-top: 40px;
        font-size: 17px;
        line-height: 1.8;
        overflow-y: auto;
        height: 200px;
    }

    .about1 {
        padding: 70px 0;
    }

    .about2 {
        padding: 0;
    }

    .about3 ul li h6 {
        font-size: 50px;
    }

    .about3 ul li p {
        font-size: 17px;
    }

    .about4 {
        padding: 90px 0;
    }

    .about4 ul li .pic img {
        max-width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .about4 ul li .txt p {
        font-size: 17px;
        line-height: 1.6;
        margin: 20px 0 0;
    }
}

@media screen and (max-width: 1280px) {
    .about2 .pic {
        width: 50%;
    }

    .about2 .pic p {
        margin: 130px 0 0;
    }

    .about2 .txt {
        padding: 60px 70px 0;
    }

    .about2 .txt .more {
        margin: 30px auto 0;
    }

    .about2 .list {
        margin-top: -180px;
    }

    .about2 .list .preview .swiper-slide {
        margin-left: 20px;
        margin-right: 0;
    }
}

@media screen and (max-width: 992px) {
    .about_customize ul li {
        width: 50%;
    }

    .about2 .txt {
        padding: 0 20px 0;
    }

    .about2 .txt .more {
        margin: 20px auto 0;
    }

    .about2 .list .view {
        width: 50%;
    }

    .about_customize .text_list li {
        width: 50%;
        font-size: 17px;
    }
}

@media screen and (max-width: 768px) {

    .certlist {
        padding: 30px 0;
    }

    .certlist .list {
        margin: 30px 0 0;
    }

    .certlist .swiper-slide {
        width: 200px;
        margin: 15px 0;
    }

    .certlist .list .swiper-button-prev, .certlist .list .swiper-button-next {
        display: none;
    }

    .certlist .swiper-pagination {
        display: block;
    }

    .about_customize h3 {
        font-size: 28px;
        text-transform: capitalize;
        margin-bottom: 15px;
    }

    .about_customize p {
        font-size: 16px;
        line-height: 1.4;
        /*margin: 20px auto 0;*/
    }

    .about_customize ul li,
    .about_customize .text_list li {
        width: 100%;
    }

    .about1 .txt h1,
    .about2 .txt h3,
    .about3 .tit h3 {
        font-size: 28px;
    }

    .about1 {
        padding: 30px 0;
    }

    .about1 .wp {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .about1 .pic {
        width: 100%;
    }

    .about1 .txt {
        margin: 0 0 20px;
    }

    .about1 .txt h1 {
        text-align: center;
    }

    .about1 .txt .t {
        margin-top: 20px;
        font-size: 16px;
        line-height: 1.4;
        height: auto;
    }

    .about1 .txt .t p ~ p {
        margin-top: 10px;
    }


    .about2 {
        padding: 0;
    }

    .about2 .box {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .about2 .pic {
        width: 100%;
        display: block;
        overflow: hidden;
    }

    .about2 .pic p {
        margin: 30px 0 0;
    }

    .about2 .txt {
        padding: 0 10px 20px;
    }

    .about2 .txt p {
        margin-top: 15px;
        font-size: 16px;
        line-height: 24px;
    }


    .about2 .txt .more {
        margin: 20px auto 0;
        font-size: 15px;
        width: 140px;
        height: 36px;
        line-height: 36px;
    }

    .about2 .list {
        width: 460px;
        margin: 20px auto 0;
        display: block;
    }

    .about2 .list .view {
        width: 100%;
        margin: 0 auto;
    }

    .about2 .list .preview {
        width: 100%;
        margin: 20px 0 0;
    }

    .about2 .list .preview .swiper-slide {
        margin-left: 0;
        margin-right: 24px;
    }

    .about2 .v .play {
        left: calc(50% - 30px);
        top: calc(50% - 30px);
        width: 60px;
        height: 60px;
    }

    .about3 {
        padding: 30px 0 0;
    }

    .about3::after {
        display: none;
    }

    .about3 .tit p {
        font-size: 16px;
        line-height: 1.4;
        margin: 20px auto 0;
    }

    .about3 .list {
        margin: 30px 0 0;
        box-shadow: 0 0 10px rgba(14, 4, 9, 0.09);
        padding: 20px;
        background: #fff;
        position: relative;
        z-index: 10;
    }

    .about3 ul {
        margin: 0 -10px;
        display: -webkit-flex;
        display: flex;
        -webkit-flex-wrap: wrap;
        flex-wrap: wrap;
    }

    .about3 ul li {
        width: 50%;
        padding: 10px 10px;
        text-align: center;
        position: relative;
    }

    .about3 ul li:not(:nth-child(3n+1))::after {
        display: none;
    }

    .about3 ul li:nth-child(-n+3) .box {
        padding-bottom: 10px;
    }

    .about3 ul li:nth-child(n+4) .box {
        border-top: none;
        padding-top: 10px;
    }

    .about3 ul li h6 {
        font-size: 30px;
    }

    .about3 ul li p {
        font-size: 16px;
        margin-top: 10px;
    }

    .about4 {
        padding: 30px 0;
    }

    .about4 ul li {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .about4 ul li + li {
        margin-top: 20px;
    }

    .about4 ul li .pic {
        width: 100%;
        text-align: center;
    }

    .about4 ul li .txt {
        margin: 20px 0 0;
        border-bottom: none;
    }

    .about4 ul li .txt h5 {
        font-size: 22px;
        text-align: center;
    }

    .about4 ul li .txt p {
        font-size: 16px;
        line-height: 1.4;
        margin: 15px 0 0;
    }

    .about4 ul li:nth-child(2n+1) {
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .about4 ul li:nth-child(2n+1) .txt {
        margin: 20px 0 0;
    }
}

@media screen and (max-width: 600px) {

    .about_customize h3 {
        font-size: 25px;
    }

    .about1 .txt h1,
    .about2 .txt h3,
    .about3 .tit h3 {
        font-size: 25px;
    }

    .about2 .list {
        width: 100%;
    }
}

@media screen and (max-width: 480px) {

    .about_customize h3 {
        font-size: 24px;
    }

    .about1 .txt h1,
    .about2 .txt h3,
    .about3 .tit h3 {
        font-size: 24px;
    }

    .about3 ul li {
        width: 50%;
    }
}