.banner {
    position: relative;
    margin-top: 80px;
}

.banner .banner_content {
    position: relative;
}


.banner .swiper-button-next,
.banner .swiper-button-prev {
    color: rgb(255, 255, 255, 0.3);

}

.banner .swiper-button-next:hover,
.banner .swiper-button-prev:hover {
    color: rgb(214, 25, 25, 0.3);
}

.banner .swiper-button-next::after,
.banner .swiper-button-prev::after {
    font-size: 30px;
}

.banner .swiper-button-prev {
    left: calc((100% - 1640px)/2);
}

.banner .swiper-button-next {
    right: calc((100% - 1640px)/2);
}


.banner .swiper-pagination {
    bottom: 50px !important;
}

.banner .swiper-pagination .swiper-pagination-bullet {
    width: 111px;
    height: 5px;
    background: #FFFFFF;
    opacity: 0.5;
    border-radius: 0;
}

.banner .swiper-pagination .swiper-pagination-bullet-active {
    opacity: 1;
}



.welcome_about {
    position: relative;
    width: 100%;
    padding: 100px 0 80px;
    background: #F9F9F9;
}

.welcome_about .about_row {
    display: flex;
    flex-direction: row;
    width: 100%;
    justify-content: space-between;
    align-items: flex-end;

}

.welcome_about .about_row .about_left {
    width: 50%;
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.welcome_about .about_row .about_left h2 {
    font-size: 42px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #333333;
    text-shadow: 0px 2px 34px #EAEDF2;
    padding-bottom: 20px;
    position: relative;
}

.welcome_about .about_row .about_left h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 80px;
    height: 2px;
    background: #DA2B2B;

}

.welcome_about .about_row .about_left .left_p {
    width: 100%;
    display: flex;
    flex-direction: column;
    margin-top: 50px;
}

.welcome_about .about_row .about_left .left_p p {
    font-size: 20px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #555555;
    line-height: 42px;
    margin-bottom: 40px;
    text-align: justify;
}

.welcome_about .about_row .about_left .left_p p:last-child {
    margin-bottom: 0;
}

.welcome_about .about_row .about_pic {
    width: 43%;
    border-radius: 50px 0px 0px 0px;
    overflow: hidden;
    position: relative;
    height: 100%;
}

.welcome_about .about_row .about_pic img {
    width: 100%;
}
.welcome_about .about_row .about_pic video {
    width: 100%;
}
.welcome_about .about_row .about_pic .pic_po {
    position: absolute;
    left: 60px;
    bottom: 30px;
    width: 64px;
    height: 64px;
    background: #DA2B2B;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: .5s;
}

.welcome_about .about_row .about_pic .pic_po img {
    width: 24px;
}

.welcome_about .about_row .about_pic .pic_po:hover {
    box-shadow: 3px 4px 16px 2px rgba(218, 43, 43, 0.26);
}



.welcome_name {
    font-size: 42px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #333333;
    position: relative;
    padding-bottom: 20px;
}

.welcome_name::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, 0);
    width: 50%;
    height: 2px;
    background: #DA2B2B;
}

.welcome_product {
    padding: 70px 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    align-items: center;
}

.welcome_product .product_swiper {
    margin-top: 60px;
    position: relative;
    width: 100%;
    overflow: hidden;
    padding-bottom: 60px;
}

.welcome_product .product_swiper .product_content {
    width: 100%;
    height: 300px;
    background: #fff;
    border: 1px solid #ddd;
    padding: 20px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    position: relative;
    transition: .5s;
}

.welcome_product .product_swiper .product_content:hover {
    background: #FFFFFF;
    box-shadow: 0px 2px 34px 4px #EAEDF2;
}

.welcome_product .product_swiper .product_content::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translate(-50%, 0);
    bottom: 0;
    height: 2px;
    background: #DA2B2B;
    width: 0;
    transition: .5s;
}

.welcome_product .product_swiper .product_content:hover:after {
    width: 100%;
}

.welcome_product .product_swiper .product_content .pic {
    height: 200px;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.welcome_product .product_swiper .product_content .pic img {
    transition: .5s;
}

.welcome_product .product_swiper .product_content:hover .pic img {
    transform: scale(1.05);
    -moz-transform: scale(1.05);
    -webkit-transform: scale(1.05);
}

.welcome_product .product_swiper .product_content p {
    font-size: 20px;
    font-family: Arial;
    font-weight: 400;
    color: #333333;
    width: 100%;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition: .5s;
}

.welcome_product .product_swiper .product_content:hover p {

    color: #DA2929;
}

.swiper-pagination-bullet-active {
    background: #DA2B2B !important;
}





.welcome_application {
    padding: 50px 0 90px;
    width: 100%;
    position: relative;
    background: #F9F9F9;
}

.welcome_application .application_content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.welcome_application .application_content .application_swiper {
    margin-top: 50px;
    position: relative;
    width: 100%;
    overflow: hidden;
}

.welcome_application .application_content .application_swiper .product_content {
    position: relative;
    width: 100%;
}

.welcome_application .application_content .application_swiper .product_content .pic {
    width: 100%;
}

.application_swiper .application_po {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.application_swiper .po_but {
    position: absolute;
    right: 50px;
    bottom: 50px;
    width: 54px;
    height: 54px;
    background: #FFFFFF;
    border: 1px solid #DDDDDD;
    border-radius: 50%;
    overflow: hidden;
    transition: .5s;
}

.application_swiper .po_but .po_pic img {
    width: 18px;
}

.application_swiper .po_but .po_pic {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    overflow: hidden;
}

.application_swiper .po_but .po_pic .img1 {
    position: relative;
    opacity: 1;
    transition: .5s;
}

.application_swiper .po_but .po_pic .img2 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: .5s;
}

.application_swiper .po_but:hover .po_pic .img1 {

    opacity: 0;
}

.application_swiper .po_but:hover .po_pic .img2 {
    opacity: 1;
}

.application_swiper .po_but:hover {
    background: #DA2B2B;
    border: 1px solid #DA2B2B;
    box-shadow: 3px 4px 16px 2px rgba(218, 43, 43, 0.26);
}



.application_swiper .swiper-pagination {
    bottom: 30px !important;
}

.application_swiper .application_po .application_row {
    display: flex;
    flex-direction: row;
    width: 80%;
    margin: 0 auto;
    justify-content: space-between;
    align-items: center;
}

.application_swiper .application_po .application_row .row_left {
    width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.application_swiper .application_po .application_row .row_right {
    width: 45%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
}

.application_swiper .application_po .application_row .row_right h2 {
    font-size: 36px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
    text-align: right;
}

.application_swiper .application_po .application_row .row_right h3 {
    font-size: 36px;
    font-family: Microsoft YaHei;
    font-weight: 300;
    color: #333333;
    padding-bottom: 20px;
    position: relative;
    text-align: right;
    margin-bottom: 35px;
}

.application_swiper .application_po .application_row .row_right h3::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0;
    width: 66px;
    height: 2px;
    background: #DA2B2B;
}

.application_swiper .application_po .application_row .row_right p {
    font-size: 24px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
    text-align: right;
    line-height: 45px;
}



.welcome_news {
    padding: 60px 0 90px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.welcome_news .news_content {
    margin-top: 50px;
    display: flex;
    flex-direction: row;
    width: 100%;
    justify-content: space-between;
}

.welcome_news .news_content .news_left {
    width: 39%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #FFFFFF;
    border: 1px solid #DDDDDD;
}

.welcome_news .news_content .news_left .pic {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.welcome_news .news_content .news_left .pic img {
    transition: .5s;
    width: 100%;
}

.welcome_news .news_content .news_left:hover .pic img {
    transform: scale(1.05);
    -moz-transform: scale(1.05);
    -webkit-transform: scale(1.05);
}

.welcome_news .news_content .news_left .pic .pic_po {
    position: absolute;
    top: 0;
    left: 0;
    background: #F4F4F4;
    box-shadow: 0px 2px 34px 4px #EAEDF2;
    border-radius: 0px 0px 10px 0px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
}

.welcome_news .news_content .news_left .pic .pic_po h2 {
    font-size: 36px;
    font-family: Arial;
    font-weight: bold;
    color: #999999;
    line-height: 35px;
}

.welcome_news .news_content .news_left .pic .pic_po h4 {
    font-size: 16px;
    font-family: Arial;
    font-weight: bold;
    color: #999999;
    line-height: 35px;
}

.welcome_news .news_content .news_left .left_min {
    padding: 30px;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.welcome_news .news_content .news_left .left_min h2 {
    font-size: 24px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #333333;
    line-height: 35px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    width: 100%;
}

.welcome_news .news_content .news_left .left_min p {
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 30px;
    height: 60px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    width: 100%;
    margin: 20px 0;
}

.welcome_news .news_content .news_left .left_min h5 {
    font-size: 16px;
    font-family: Arial;
    font-weight: bold;
    color: #999999;
    line-height: 24px;
}

.welcome_news .news_content .news_right {
    width: calc(61% - 45px);
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.welcome_news .news_content .news_right .right_min {
    width: calc((100% - 25px) /2);
    height: calc((100% - 25px) /2);
    margin-right: 25px;
    margin-bottom: 25px;
    position: relative;
    background: #FFFFFF;
    border: 1px solid #DDDDDD;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    transition: .5s;
}

.welcome_news .news_content .news_right .right_min:nth-of-type(2n) {
    margin-right: 0;
}

.welcome_news .news_content .news_right .right_min .min_po {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: .5s;
    opacity: 0;
    box-shadow: 0px 2px 34px 4px #EAEDF2;
}

.welcome_news .news_content .news_right .right_min:hover .min_po {
    opacity: 1;
}

.welcome_news .news_content .news_right .right_min .min_po img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.welcome_news .news_content .news_right .right_min .min_po1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    opacity: 0;
    transition: .5s;
}

.welcome_news .news_content .news_right .right_min:hover .min_po1 {
    opacity: 1;
}

.welcome_news .news_content .news_right .right_min .min_content {
    position: relative;
    z-index: 9;
    transition: .5s;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    justify-content: space-between;
}

.welcome_news .news_content .news_right .right_min:hover .min_content {
    justify-content: flex-end;
    height: auto;

}

.welcome_news .news_content .news_right .right_min h2 {
    font-size: 24px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #333333;
    line-height: 35px;
    position: relative;
    z-index: 9;
    transition: .5s;
    margin-bottom: 30px;
}

.welcome_news .news_content .news_right .right_min h5 {
    font-size: 16px;
    font-family: Arial;
    font-weight: bold;
    color: #999999;
    line-height: 24px;
    position: relative;
    z-index: 9;
    transition: .5s;
}

.welcome_news .news_content .news_right .right_min:hover h2,
.welcome_news .news_content .news_right .right_min:hover h5 {
    color: #FFFFFF;
}

@media (max-width: 1700px) {
    .banner .swiper-button-prev {
        left: 5%;
    }

    .banner .swiper-button-next {
        right: 5%;
    }

}


@media (max-width: 1600px) {

    .welcome_about .about_row .about_left h2,
    .welcome_name {
        font-size: 36px;
    }

    .welcome_about .about_row .about_left .left_p p {
        font-size: 17px;
        line-height: 38px;
        margin-bottom: 30px;
    }

    .welcome_product .product_swiper .product_content p {
        font-size: 18px;
    }

    .application_swiper .application_po .application_row .row_right h2,
    .application_swiper .application_po .application_row .row_right h3 {
        font-size: 32px;
    }

    .application_swiper .application_po .application_row .row_right p {
        font-size: 20px;
        line-height: 40px;
    }

    .welcome_news .news_content .news_left .pic .pic_po h2 {
        font-size: 32px;
        line-height: 32px;
    }

    .welcome_news .news_content .news_left .pic .pic_po h4 {
        font-size: 14px;
    }

    .welcome_news .news_content .news_left .left_min h2 {
        font-size: 20px;
    }

    .welcome_news .news_content .news_left .left_min p {
        font-size: 14px;
        margin: 15px 0;
    }

    .welcome_news .news_content .news_left .left_min h5 {
        font-size: 14px;
    }

    .welcome_news .news_content .news_right .right_min h2 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .welcome_news .news_content .news_right .right_min h5 {
        font-size: 14px;
    }
}

@media (max-width: 1279px) {
    .banner .swiper-pagination {
        bottom: 15px !important;
    }

    .banner .swiper-pagination .swiper-pagination-bullet {
        width: 50px;
        height: 4px;
    }

    .welcome_about {
        padding: 60px 0 40px;
    }

    .welcome_about .about_row {
        flex-direction: column;
    }

    .welcome_about .about_row .about_left {
        width: 100%;
        margin: 0 0 30px 0;
    }

    .welcome_about .about_row .about_pic {
        width: 100%;
    }

    .welcome_about .about_row .about_left h2,
    .welcome_name {
        font-size: 30px;
    }

    .welcome_about .about_row .about_left h2::after {
        width: 58px;
    }

    .welcome_about .about_row .about_left .left_p {
        margin-top: 30px;
    }

    .welcome_about .about_row .about_left .left_p p {
        font-size: 15px;
        line-height: 33px;
        margin-bottom: 20px;
    }

    .welcome_about .about_row .about_pic .pic_po {
        left: 40px;
        bottom: 30px;
        width: 50px;
        height: 50px;
    }

    .welcome_about .about_row .about_pic .pic_po img {
        width: 18px;
    }

    .welcome_product {
        padding: 40px 0;
    }

    .welcome_product .product_swiper .product_content p {
        font-size: 15px;
    }

    .welcome_application {
        padding: 40px 0 50px;
    }

    .application_swiper .application_po .application_row {
        width: 94%;
    }

    .application_swiper .application_po .application_row .row_left {
        width: 36%;
    }

    .application_swiper .application_po .application_row .row_right {
        width: 60%;
    }

    .application_swiper .application_po .application_row .row_right h2 {
        font-size: 20px;
    }

    .application_swiper .application_po .application_row .row_right h3 {
        margin-bottom: 15px;
        font-size: 20px;
    }

    .welcome_application .application_content .application_swiper {
        margin-top: 34px;
    }

    .application_swiper .application_po .application_row .row_right p {
        font-size: 14px;
        line-height: 26px;
    }

    .welcome_product .product_swiper {
        margin-top: 38px;
    }

    .application_swiper .po_but {
        right: 13px;
        bottom: 6px;
        width: 40px;
        height: 40px;
        background: rgb(255, 255, 255, 0);
    }

    .application_swiper .po_but .po_pic img {
        width: 14px;
    }

    .application_swiper .swiper-pagination {
        bottom: 6px !important;
    }

    .welcome_news {
        padding: 40px 0;
    }

    .welcome_news .news_content {
        margin-top: 38px;
        flex-direction: column;
    }

    .welcome_news .news_content .news_left {
        width: 100%;
        margin-bottom: 30px;
    }

    .welcome_news .news_content .news_right {
        width: 100%;
    }

    .welcome_news .news_content .news_right .right_min {
        height: 280px;
    }

    .welcome_news .news_content .news_right .right_min h2 {
        font-size: 18px;
        line-height: 30px;
        margin-bottom: 15px;
    }
}


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

    .banner .swiper-pagination {
        bottom: 5px !important;
    }

    .banner .swiper-pagination .swiper-pagination-bullet {
        width: 33px;
        height: 3px;
    }



    .welcome_about {
        padding: 40px 0;
    }

    .welcome_about .about_row .about_left h2,
    .welcome_name {
        font-size: 24px;
    }

    .welcome_about .about_row .about_pic .pic_po {
        left: 21px;
        bottom: 13px;
        width: 40px;
        height: 40px;
    }

    .welcome_application .application_content .application_swiper .product_content .pic {
        display: none;
    }

    .application_swiper .application_po {
        position: initial;
    }

    .application_swiper .application_po .application_row {
        flex-direction: column;
        width: 100%;
        justify-content: space-between;
        align-items: flex-end;
        padding-bottom: 60px;
    }

    .application_swiper .application_po .application_row .row_left,
    .application_swiper .application_po .application_row .row_right {
        width: 100%;
    }

    .application_swiper .application_po .application_row .row_left {
        margin-bottom: 30px;
    }

    .application_swiper .po_but {
        background: rgb(255, 255, 255);
        z-index: 99;
        bottom: 16px;
    }






    .welcome_news .news_content .news_right .right_min {
        width: 100%;
        margin-right: 0 !important;
    }

    .welcome_news .news_content .news_right .right_min:last-child {
        margin-bottom: 0;
    }
}