.banner {
    position: relative;
}

.banner .banner-swiper-pagination.swiper-pagination-bullets {
    position: absolute;
    bottom: 50px;
    width: 1720px;
    left: 100px;
    z-index: 9;
}


.banner .banner-swiper-pagination .swiper-pagination-bullet {
    width: 79px;
    height: 3px;
    border-radius: 0;
}

.banner .banner_content{
    position: relative;
}
.banner .banner_po {
    position: absolute;
    left: 5%;
    bottom: 80px;
    display: flex;
    flex-direction: row;
    align-items: center;
    cursor: pointer;
}

.banner .banner_po h2 {
    font-size: 22px;
    color: #ead818;
    margin-right: 20px;
    z-index: 99;
    text-shadow: 0 0 10px #000;
    font-weight: bold;
}

.banner .banner_po .po_video {
    width: 45px;
    height: 45px;
    text-align: center;
    background-color: #0079C2;
    border-radius: 50%;
    z-index: 2;
    position: relative;
    cursor: pointer;
}

.banner .banner_po .po_video img {
    width: 45px;
}

.banner .banner_po .po_video::before,
.banner .banner_po .po_video::after {
    position: absolute;
    content: "";
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    border-radius: 50%;
    background-color: #0079C2;
    opacity: .15;
    z-index: -10
}

.banner .banner_po .po_video::before {
    z-index: -10;
    -webkit-animation: inner-ripple 2000ms linear infinite;
    -moz-animation: inner-ripple 2000ms linear infinite;
    animation: inner-ripple 2000ms linear infinite
}

.banner .banner_po .po_video::after {
    z-index: -10;
    -webkit-animation: outer-ripple 2000ms linear infinite;
    -moz-animation: outer-ripple 2000ms linear infinite;
    animation: outer-ripple 2000ms linear infinite
}

@keyframes outer-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1);
        -webkit-filter: alpha(opacity=50)
    }

    80% {
        transform: scale(1.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(1.5);
        -moz-transform: scale(1.5);
        -ms-transform: scale(1.5);
        -o-transform: scale(1.5)
    }

    100% {
        transform: scale(2.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(2.5);
        -moz-transform: scale(2.5);
        -ms-transform: scale(2.5);
        -o-transform: scale(2.5)
    }
}

@-webkit-keyframes outer-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    80% {
        transform: scale(2.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(2.5);
        -moz-transform: scale(2.5);
        -ms-transform: scale(2.5);
        -o-transform: scale(2.5)
    }

    100% {
        transform: scale(3.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(3.5);
        -moz-transform: scale(3.5);
        -ms-transform: scale(3.5);
        -o-transform: scale(3.5)
    }
}

@-moz-keyframes outer-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    80% {
        transform: scale(2.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(2.5);
        -moz-transform: scale(2.5);
        -ms-transform: scale(2.5);
        -o-transform: scale(2.5)
    }

    100% {
        transform: scale(3.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(3.5);
        -moz-transform: scale(3.5);
        -ms-transform: scale(3.5);
        -o-transform: scale(3.5)
    }
}

@keyframes inner-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    30% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    100% {
        transform: scale(1.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(1.5);
        -moz-transform: scale(1.5);
        -ms-transform: scale(1.5);
        -o-transform: scale(1.5)
    }
}

@-webkit-keyframes inner-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    30% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    100% {
        transform: scale(1.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(1.5);
        -moz-transform: scale(1.5);
        -ms-transform: scale(1.5);
        -o-transform: scale(1.5)
    }
}

@-moz-keyframes inner-ripple {
    0% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    30% {
        transform: scale(1);
        filter: alpha(opacity=50);
        opacity: .5;
        -webkit-transform: scale(1);
        -moz-transform: scale(1);
        -ms-transform: scale(1);
        -o-transform: scale(1)
    }

    100% {
        transform: scale(1.5);
        filter: alpha(opacity=0);
        opacity: 0;
        -webkit-transform: scale(1.5);
        -moz-transform: scale(1.5);
        -ms-transform: scale(1.5);
        -o-transform: scale(1.5)
    }
}



.welcome_row {
    padding: 15px;
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.welcome_row .row_min {
    width: calc((100% - 60px) / 4);
    margin-right: 20px;
    position: relative;
    overflow: hidden;
}

.welcome_row .row_min:nth-of-type(4n) {
    margin-right: 0;
}

.welcome_row .row_min .pic {
    overflow: hidden;
}

.welcome_row .row_min .pic img {
    transition: .5s;
    width: 100%;
}

.welcome_row .row_min:hover .pic img {
    transform: scale(1.05);
    -moz-transform: scale(1.05);
    -webkit-transform: scale(1.05);
}

.welcome_row .row_min .min1 {
    position: absolute;
    width: 87px;
    height: 87px;
    background: #0079C2;
    left: 0;
    bottom: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: .5s;
}

.welcome_row .row_min .min1 img {
    width: 13px;
    height: 21px;
}

.welcome_row .row_min:hover .min1 {
    background: #E6212A;
}


.welcome_row .row_min .swiper-container {
    height: 100%;
}

.welcome_row .row_min .pic1 {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    background: #cad8e8;
}

.welcome_row .row_min .min-swiper-pagination {
    text-align: center;
}

.welcome_row .row_min .min-swiper-pagination .swiper-pagination-bullet {
    width: 13px;
    height: 13px;
    margin: 0 7px;
    background: #ACC7DC;
    opacity: 1;
}

.welcome_row .row_min .min-swiper-pagination .swiper-pagination-bullet-active {
    background: #0079C2;
}


.welcome_row .row_min .min_name {
    position: absolute;
    bottom: 70px;
    left: 25px;
}

.welcome_row .row_min .min_name h2 {
    font-size: 30px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #ffffff;
    position: relative;
    line-height: 1;
    transition: .5s;
    text-shadow: 0 0 10px #0079C2;
}

.welcome_row .row_min .min_name h2::after {
    position: absolute;
    content: '';
    left: 0;
    bottom: -25px;
    width: 30px;
    height: 3px;
    background: #ffffff;
    transition: .5s;
}

/* .welcome_row .row_min:hover .min_name h2 {
    color: #0079C2;
}

.welcome_row .row_min:hover .min_name h2::after {
    background: #E6212A;
} */

@media (max-width: 1720px) {
    .banner .banner-swiper-pagination.swiper-pagination-bullets {
        left: 5%;
        width: 90%;
    }
}



@media (max-width: 1601px) {
    .banner .banner-swiper-pagination .swiper-pagination-bullet {
        width: 70px;
    }

    .welcome_row .row_min .min1 {
        position: absolute;
        width: 75px;
        height: 75px;
    }

    .welcome_row .row_min .min-swiper-pagination .swiper-pagination-bullet {
        width: 11px;
        height: 11px;
        margin: 0 6px;
    }

    .welcome_row .row_min .min_name {
        bottom: 65px;
    }

    .welcome_row .row_min .min_name h2 {
        font-size: 25px;
    }

    .welcome_row .row_min .min_name h2::after {
        bottom: -25px;
    }
}


@media (max-width: 1440px) {
    .banner .banner-swiper-pagination.swiper-pagination-bullets {
        bottom: 35px;
    }

    .welcome_row .row_min .min_name {
        bottom: 55px;
    }

    .welcome_row .row_min .min_name h2 {
        font-size: 20px;
    }

    .welcome_row .row_min .min_name h2::after {
        bottom: -22px;
        width: 25px;
        height: 2px;
    }
    .banner .banner_po{
        bottom: 60px;
    }
    .banner .banner_po h2{
        font-size: 18px;
    }
    .banner .banner_po .po_video{
        width: 52px;
        height: 52px;
    }
    .banner .banner_po .po_video img{
        width: 52px;
    }
}


@media (max-width: 992px) {
    .welcome_row .row_min {
        width: calc((100% - 20px) / 2);
        margin-right: 20px;
        position: relative;
        overflow: hidden;
        margin-bottom: 20px;
    }

    .welcome_row .row_min:nth-of-type(2n) {
        margin-right: 0;
    }

    .welcome_row .row_min:nth-child(3) {
        margin-bottom: 0;
    }

    .welcome_row .row_min:nth-child(4) {
        margin-bottom: 0;
    }

    .banner {
        padding-top: 70px;
    }

    .banner .banner-swiper-pagination.swiper-pagination-bullets {
        bottom: 25px;
    }

    .banner .banner-swiper-pagination .swiper-pagination-bullet {
        width: 45px;
        height: 2px;
    }
    .banner .banner_po{
        bottom: 50px;
    }
    .banner .banner_po h2{
        font-size: 18px;
    }
    .banner .banner_po .po_video{
        width: 52px;
        height: 52px;
    }
    .banner .banner_po .po_video img{
        width: 52px;
    }
}


@media (max-width: 600px) {
    .banner {
        padding-top: 64px;
    }

    .banner .banner-swiper-pagination.swiper-pagination-bullets {
        bottom: 12px;
    }

    .banner .banner-swiper-pagination .swiper-pagination-bullet {
        width: 25px;
    }

    .welcome_row .row_min {
        width: calc((100% - 10px) / 2);
        margin-right: 10px;
        margin-bottom: 10px;
    }

    .welcome_row .row_min .min1 {
        width: 45px;
        height: 45px;
    }

    .welcome_row .row_min .min1 img {
        width: 8px;
        height: 13px;
    }

    .welcome_row .row_min .min-swiper-pagination .swiper-pagination-bullet {
        width: 8px;
        height: 8px;
        margin: 0 4px;
    }

    .welcome_row .row_min .min-swiper-pagination {
        bottom: 0;
    }

    .welcome_row .row_min .min_name {
        left: 15px;
        bottom: 35px;
    }

    .welcome_row .row_min .min_name h2 {
        font-size: 16px;
    }

    .welcome_row .row_min .min_name h2::after {
        bottom: -15px;
    }
    .banner .banner_po{
        bottom: 30px;
    }
    .banner .banner_po h2{
        font-size: 14px;
        margin-right: 10px;
    }
    .banner .banner_po .po_video{
        width: 25px;
        height: 25px;
    }
    .banner .banner_po .po_video img{
        width: 25px;
    }
}