.index_banner_box {
    position: relative
}

@keyframes move {
    0% {
        bottom: 5%
    }

    50% {
        bottom: 6%
    }

    100% {
        bottom: 5%
    }
}

.index_banner_box .mouse {
    cursor: pointer;
    width: 2.19rem;
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%);
    animation: move 1s infinite ease-out;
    z-index: 3
}

.index_banner_box img {
    height: 100%;
    object-fit: cover
}

.index_banner_box video {
    height: 100%;
    object-fit: cover
}

.index_banner_box .text_box {
    position: absolute;
    left: 24%;
    top: 30%;
    z-index: 3;
    line-height: 4.5rem;
    transform: translateX(-50%);
    color: #fff;
    font-size: 3rem
}

.index_banner_box .text_box .en_text {
    font-size: 1.6rem;
}

.index_banner_box .text_box a {
    width: 12rem;
    height: 3rem;
    margin-top: 2.5rem;
    line-height: 3rem;
    border: 1px solid #fff;
    font-size: 1rem;
    color: #fff;
}

.main .title {
    font-size: 2.75rem;
    text-align: center;
    font-weight: bold;
    margin-top: 5.19rem;
    margin-bottom: 1.25rem
}

.main .sub_title {
    font-size: 1.25rem;
    color: #666666;
    text-align: center;
    margin-bottom: 3.13rem
}

.main .service_box {
    width: 100%;
    height: 52rem;
    flex-wrap: wrap
}

.main .service_box .service_item {
    width: 100%;
    height: 22.75rem;
    background-color: #f2f2f2;
    margin-bottom: 0
}

.main .service_box .service_item .info {
    flex: 1.5;
    margin: 3.13rem
}

.main .service_box .service_item .info .title {
    font-size: 2.25rem;
    text-align: left;
    font-weight: bold;
    color: #222222;
    position: relative;
}

.main .service_box .service_item .info .title .line {
    width: 3rem;
    height: 2px;
    position: absolute;
    left: 0;
    bottom: -1rem;
    background-color: #02457a;
}

.main .service_box .service_item .info .dec {
    font-size: .88rem;
    color: #bbbbbb;
    margin: 2.5rem 0
}

.main .service_box .service_item .info .btn {
    width: 9.63rem;
    height: 2.75rem;
    font-size: .88rem;
    color: #fff;
    background-color: #02457a;
    border-radius: 3.13rem
}

.main .service_box .service_item .info .btn span {
    flex: .7;
    text-align: center
}

.main .service_box .service_item .info .btn img {
    width: 1.25rem;
    justify-self: flex-end
}

.main .service_box .service_item .pic_box {
    margin: 3.13rem;
    flex: .9
}

.main .service_box .service_item .pic_box img {
    height: 100%;
    object-fit: contain
}

.main .service_box .service_item .btn {
    position: relative;
    overflow: hidden
}

.main .service_box .service_item .btn span {
    position: relative;
    z-index: 3
}

.main .service_box .service_item .btn img {
    position: relative;
    z-index: 3
}

.main .service_box .service_item .btn::after {
    content: "";
    display: block;
    background-color: #0b70b6;
    width: 0%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transition: all .3s
}

.main .service_box .service_item .btn:hover::after {
    width: 100%
}

.main .service_box .service_item_left {
    width: 49%;
    height: 100%
}

.main .service_box .service_item_left .service_item:nth-last-child(1) {
    height: 27.44rem
}

.main .service_box .service_item_right {
    width: 49%;
    height: 100%
}

.main .service_box .service_item_right .service_item:nth-child(1) {
    height: 27.44rem
}

.about {
    width: 100%;
    height: 42.5rem;
    margin: 5.19rem 0;
    background-image: url(../images/about_bg.jpg);
    background-size: contain;
    background-repeat: no-repeat;
    background-position-x: right;
    background-position-y: top;
    background-color: #f2f2f2;
    overflow: hidden
}

.about .about_content {
    width: 87.5rem;
    height: 32.25rem;
    position: relative
}

.about .about_content .add_icon {
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    bottom: -30rem;
    left: -2rem;
    transform: translateY(-50%);
    z-index: 2;
    transition: all 1s ease-out
}

.about .about_content .about_left {
    width: 43.63rem;
    height: 100%;
    border-radius: 0 3.13rem 0 0;
    overflow: hidden;
    margin-right: 3.38rem
}

.about .about_content .about_right {
    flex: 1;
    height: 100%;
    text-align: left
}

.about .about_content .about_right .title {
    font-size: 2.88rem;
    font-weight: bold;
    color: #333333;
    margin-bottom: 2.38rem;
    margin-top: 3.75rem
}

.about .about_content .about_right .sub_title {
    font-size: 1.63rem;
    color: #333333;
    margin-bottom: 3.75rem
}

.about .about_content .about_right .dec {
    font-size: 1.06rem;
    color: #666666;
    margin-bottom: 4.06rem;
    line-height: 2.38rem
}

.about .about_content .about_right .btn {
    width: 11.25rem;
    height: 3.13rem;
    background-color: #02457a;
    color: #fff;
    font-size: .88rem
}

.about .about_content .about_right .btn img {
    width: 3.13rem
}

.about .about_content .about_right .btn {
    position: relative;
    overflow: hidden
}

.about .about_content .about_right .btn span {
    position: relative;
    z-index: 3
}

.about .about_content .about_right .btn img {
    position: relative;
    z-index: 3
}

.about .about_content .about_right .btn::after {
    content: "";
    display: block;
    background-color: #0b70b6;
    width: 0%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transition: all .3s
}

.about .about_content .about_right .btn:hover::after {
    width: 100%
}

.app .title {
    text-align: center;
    font-size: 2.75rem;
    font-weight: bold;
    color: #333333;
    margin-bottom: 3.13rem
}

.app .app_nav {
    width: 71.19rem;
    height: 3.44rem;
    margin: 0 auto;
    margin-bottom: 3.44rem
}

.app .app_nav .nav_item {
    padding: 1.25rem 2.5rem;
    font-size: 1.06rem;
    background-color: #f2f2f2;
    margin-right: .63rem;
    color: #333333;
    transition: all .2s;
    cursor: pointer;
}

.app .app_nav .nav_item:hover {
    background-color: #02457a;
    color: #fff
}

.app .app_nav .active_nav {
    background-color: #02457a;
    color: #fff
}

.app .about_swiper {
    width: 87.5rem;
    height: 20rem;
    margin: 0 auto;
    position: relative
}

.app .about_swiper .arrow_item {
    width: 2.5rem;
    height: 4.75rem;
    position: absolute;
    top: 45%;
    transform: translateY(-50%);
    z-index: 2;
    cursor: pointer;
    background-color: #02457a;
    transition: all .2s
}

.app .about_swiper .arrow_left {
    left: -5rem;
    background-image: url(../images/arrow-left.png);
    background-size: 11px;
    background-repeat: no-repeat;
    background-position: center
}

.app .about_swiper .arrow_right {
    right: -5rem;
    background-image: url(../images/arrow-right.png);
    background-size: 11px;
    background-repeat: no-repeat;
    background-position: center
}

.app .about_swiper .slide_box {
    width: 100%;
    height: 100%
}

.app .about_swiper .slide_box .title {
    font-size: 1.13rem;
    color: #333333;
    margin-top: 1.56rem;
    font-weight: normal
}

.app .about_swiper .slide_box .pic {
    width: 100%;
    height: 20rem
}

.app .about_swiper .slide_box:hover .title {
    color: #02457a
}

.new {
    width: 100%;
    height: 45.5rem;
    background-color: #f8f8f8;
    padding-top: 4.81rem;
    margin: 6.25rem 0;
    margin-bottom: 0
}

.new .title {
    font-size: 2.75rem;
    text-align: center;
    font-weight: bold;
    margin-bottom: 1.25rem
}

.new .sub_title {
    color: #666666;
    font-size: 1.25rem;
    margin-bottom: 3.13rem;
    text-align: center
}

.new .new_swiper_box {
    padding: 0 1.88rem;
    height: 26.5rem
}

.new .new_swiper_box .swiper-slide {
    position: relative
}

.new .new_swiper_box .pic_box {
    width: 100%;
    height: 19.13rem
}

.new .new_swiper_box .info_box {
    width: 25.25rem;
    height: 17rem;
    background-color: #fff;
    position: absolute;
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    transition: all .1s
}

.new .new_swiper_box .info_box .info_title {
    font-size: 1.25rem;
    padding: 0 1.88rem;
    color: #333333;
    text-align: left;
    margin-top: 2.5rem;
    margin-bottom: 1.56rem
}

.new .new_swiper_box .info_box .info_dec {
    color: #666666;
    padding: 0 1.88rem;
    font-size: 1rem;
    line-height: 1.63rem;
    text-align: left;
    overflow: hidden;

    text-overflow: ellipsis;

    display: -webkit-box;

    -webkit-box-orient: vertical;

    -webkit-line-clamp: 3;
    height: 5rem
}

.new .new_swiper_box .info_box .info_time {
    padding: 0 1.88rem;
    font-size: 1rem;
    color: #999999;
    margin-bottom: 2.5rem
}

.new .new_swiper_box .info_box .info_time .icon {
    width: 1.88rem;
    height: 1.88rem;
    flex-shrink: 0;
    background-color: #cccccc
}

.new .new_swiper_box .info_box .info_time .icon img {
    width: .63rem
}

.new .new_swiper_box .swiper-slide:hover .info_box {
    box-shadow: 0 .5rem .56rem rgba(0, 0, 0, 0.25)
}

.new .new_swiper_box .swiper-slide:hover .info_title {
    transition: all .2s;
    color: #02457a
}

.new .new_swiper_box .swiper-slide:hover .icon {
    transition: all .2s;
    background-color: #02457a
}

.btn_group {
    width: 100%;
    height: 8.75rem
}

.btn_group .group_text {
    font-size: 1.25rem;
    color: #333333
}

.btn_group .btn_wrapper {
    height: 100%;
    margin-left: 9.38rem
}

.btn_group .btn_wrapper .btn_item {
    width: 12rem;
    height: 3.88rem;
    border: 1px solid #02457a;
    margin: 0 1.25rem;
    color: #02457a
}

.btn_group .btn_wrapper .btn_item .icon {
    width: 1.75rem;
    height: 1.38rem;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    margin-right: .94rem
}

.btn_group .btn_wrapper .btn_item:hover {
    color: #fff;
    background-color: #02457a
}

.btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
    background-image: url(../images/icon8.png)
}

.btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
    background-image: url(../images/icon10.png)
}

.btn_group .btn_wrapper .active_btn {
    background-color: #02457a;
    color: #fff
}

.btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
    background-image: url(../images/icon11.png)
}

.btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
    background-image: url(../images/icon9.png)
}

.index_banner_box .swiper-button-prev {
    left: 0;
    background-image: url(../images/arrow-left.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    height: 3rem;
}

.index_banner_box .swiper-button-next {
    right: 0;
    background-image: url(../images/arrow-right.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    height: 3rem;
}

@media screen and (max-width:992px) {
    .index_banner_box .mouse {
        display: none
    }

    .main .service_box .service_item .info .title .line {
        display: none;
    }

    .index_banner_box .text_box {
        font-size: .32rem;
        left: 30%;
        width: auto;
        line-height: normal;
    }

    .index_banner_box .text_box a {
        width: 3rem;
        height: .7rem;
        margin-top: .5rem;
        line-height: .7rem;
        border: 1px solid #fff;
        font-size: .28rem;
        color: #fff;
    }

    .index_banner_box .text_box .en_text {
        font-size: .2rem;
    }

    .main .title {
        font-size: .4rem;
        margin-top: .6rem;
        margin-bottom: .6rem
    }

    .main .sub_title {
        font-size: .28rem;
        margin: 0 .25rem;
        color: #666666;
        text-align: center;
        margin-bottom: .4rem
    }

    .main .service_box {
        height: auto
    }

    .main .service_box .service_item {
        flex-direction: column-reverse;
        height: auto;
        background-color: #f2f2f2;
        margin-bottom: .3rem;
        padding-bottom: .3rem
    }

    .main .service_box .service_item .info {
        flex: .1;
        margin: 0
    }

    .main .service_box .service_item .info .title {
        font-size: .36rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .28rem;
        max-width: 4rem;
        color: #bbbbbb;
        margin: .4rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 2.63rem;
        height: .75rem;
        font-size: .28rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: .3rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: .4rem;
        flex: .2
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 100%;
        height: 100%;
        margin: 0 .25rem
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: auto
    }

    .main .service_box .service_item_right {
        width: 100%;
        height: 100%;
        margin: 0 .25rem
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: auto
    }

    .about {
        width: 100%;
        height: auto;
        margin: .6rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 100%;
        height: auto;
        flex-direction: column-reverse
    }

    .about .about_content .add_icon {
        display: none
    }

    .about .about_content .about_left {
        width: 100%;
        height: auto;
        border-radius: 0;
        overflow: hidden;
        margin-right: 0;
        margin-top: .3rem
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: center;
        margin-bottom: .4rem
    }

    .about .about_content .about_right .title {
        font-size: .4rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: .6rem;
        margin-top: .6rem
    }

    .about .about_content .about_right .sub_title {
        font-size: .28rem;
        color: #333333;
        margin-bottom: .6rem
    }

    .about .about_content .about_right .dec {
        font-size: .28rem;
        color: #666666;
        padding: 0 .25rem;
        margin-bottom: .4rem;
        line-height: .56rem
    }

    .about .about_content .about_right .btn {
        width: 2.5rem;
        height: .7rem;
        justify-content: space-around;
        margin-left: .25rem;
        font-size: .28rem
    }

    .about .about_content .about_right .btn img {
        width: .5rem
    }

    .app .title {
        text-align: center;
        font-size: .4rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: .6rem
    }

    .app .app_nav {
        width: 100%;
        height: 1rem;
        margin: 0 auto;
        margin-bottom: 1rem;
        flex-wrap: wrap
    }

    .app .app_nav .nav_item {
        width: 2rem;
        margin-bottom: .1rem;
        padding: .14rem .16rem;
        font-size: .28rem;
        background-color: #f2f2f2;
        margin-right: .1rem;
        flex-shrink: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:nth-child(1) {
        margin-left: .1rem
    }

    .app .app_nav .nav_item:nth-child(4n) {
        margin-left: .1rem
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 100%;
        height: 5rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: .35rem;
        height: .7rem;
        top: 40%
    }

    .app .about_swiper .arrow_left {
        left: 0rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: 0rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: .28rem;
        color: #333333;
        margin-top: .3rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 80%
    }

    .app .about_swiper .slide_box .pic img {
        height: 100%;
        object-fit: cover
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: auto;
        background-color: #f8f8f8;
        padding-top: .6rem;
        margin: .6rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: .4rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: .4rem
    }

    .new .sub_title {
        color: #666666;
        font-size: .28rem;
        margin: 0 .25rem;
        margin-bottom: .4rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 0;
        height: 7rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 5rem
    }

    .new .new_swiper_box .info_box {
        width: 90%;
        height: 4rem;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: .36rem;
        padding: 0 .3rem;
        margin-top: .2rem;
        margin-bottom: .2rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 .3rem;
        font-size: .28rem;
        line-height: .56rem;
        text-align: left;
        height: 1.8rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 .3rem;
        font-size: 12px;
        color: #999999;
        margin-bottom: .2rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: .4rem;
        height: .4rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .2rem
    }

    .btn_group {
        width: 100%;
        height: auto;
        flex-direction: column;
        margin-top: .4rem;
        margin-bottom: 1rem
    }

    .btn_group .group_text {
        font-size: .28rem;
        margin-bottom: .4rem
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 0;
        margin-bottom: .4rem
    }

    .btn_group .btn_wrapper .btn_item {
        width: 3rem;
        height: .8rem;
        border: 1px solid #02457a;
        margin: 0 .3rem;
        font-size: .28rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: .4rem;
        height: .4rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .2rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1024px) {
    .index_banner_box {
        position: relative
    }

    .main .service_box .service_item .info .title .line {
        display: block;
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        max-width: auto;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1100px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1280px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1366px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1440px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1680px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}

@media screen and (min-width:1920px) {
    .index_banner_box {
        position: relative
    }

    @keyframes move {
        0% {
            bottom: 5%
        }

        50% {
            bottom: 6%
        }

        100% {
            bottom: 5%
        }
    }

    .index_banner_box .mouse {
        display: block
    }

    .index_banner_box .text_box {
        font-size: 3rem
    }

    .index_banner_box .text_box .en_text {
        font-size: 1.6rem;
    }

    .main .title {
        font-size: 2.75rem;
        margin-top: 5.19rem;
        margin-bottom: 1.25rem
    }

    .main .sub_title {
        font-size: 1.25rem;
        margin: 0 0;
        color: #666666;
        text-align: center;
        margin-bottom: 3.13rem
    }

    .main .service_box {
        height: 52rem
    }

    .main .service_box .service_item {
        width: 100%;
        height: 22.75rem;
        background-color: #f2f2f2;
        margin-bottom: 0;
        padding-bottom: 0;
        flex-direction: row
    }

    .main .service_box .service_item .info {
        flex: 1.5;
        margin: 3.13rem
    }

    .main .service_box .service_item .info .title {
        font-size: 2.25rem;
        text-align: left;
        font-weight: bold;
        color: #222222
    }

    .main .service_box .service_item .info .dec {
        font-size: .88rem;
        color: #bbbbbb;
        margin: 2.5rem 0
    }

    .main .service_box .service_item .info .btn {
        width: 9.63rem;
        height: 2.75rem;
        font-size: .88rem;
        color: #fff;
        background-color: #02457a;
        border-radius: 3.13rem
    }

    .main .service_box .service_item .info .btn span {
        flex: .7;
        text-align: center
    }

    .main .service_box .service_item .info .btn img {
        width: 1.25rem;
        justify-self: flex-end
    }

    .main .service_box .service_item .pic_box {
        margin: 3.13rem;
        flex: .9
    }

    .main .service_box .service_item .pic_box img {
        height: 100%;
        object-fit: contain
    }

    .main .service_box .service_item .btn {
        position: relative;
        overflow: hidden
    }

    .main .service_box .service_item .btn span {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn img {
        position: relative;
        z-index: 3
    }

    .main .service_box .service_item .btn::after {
        content: "";
        display: block;
        background-color: #0b70b6;
        width: 0%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        transition: all .3s
    }

    .main .service_box .service_item .btn:hover::after {
        width: 100%
    }

    .main .service_box .service_item_left {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_left .service_item:nth-last-child(1) {
        height: 27.44rem
    }

    .main .service_box .service_item_right {
        width: 49%;
        height: 100%;
        margin: 0 0
    }

    .main .service_box .service_item_right .service_item:nth-child(1) {
        height: 27.44rem
    }

    .about {
        width: 100%;
        height: 42.5rem;
        margin: 5.19rem 0;
        background-image: url(../images/about_bg.jpg);
        background-size: contain;
        background-repeat: no-repeat;
        background-position-x: right;
        background-position-y: top;
        background-color: #f2f2f2;
        overflow: hidden
    }

    .about .about_content {
        width: 87.5rem;
        height: 32.25rem;
        flex-direction: row
    }

    .about .about_content .add_icon {
        display: block
    }

    .about .about_content .about_left {
        width: 43.63rem;
        height: 100%;
        border-radius: 0 3.13rem 0 0;
        overflow: hidden;
        margin-right: 3.38rem;
        margin-top: 0
    }

    .about .about_content .about_right {
        flex: 1;
        height: 100%;
        text-align: left
    }

    .about .about_content .about_right .title {
        font-size: 2.88rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 2.38rem;
        margin-top: 3.75rem
    }

    .about .about_content .about_right .sub_title {
        font-size: 1.63rem;
        color: #333333;
        margin-bottom: 3.75rem
    }

    .about .about_content .about_right .dec {
        font-size: 1.06rem;
        color: #666666;
        padding: 0;
        margin-bottom: 4.06rem;
        line-height: 2.38rem
    }

    .about .about_content .about_right .btn {
        width: 11.25rem;
        height: 3.13rem;
        margin-left: 0;
        justify-content: center;
        font-size: .88rem
    }

    .about .about_content .about_right .btn img {
        width: 3.13rem
    }

    .app .title {
        text-align: center;
        font-size: 2.75rem;
        font-weight: bold;
        color: #333333;
        margin-bottom: 3.13rem
    }

    .app .app_nav {
        width: 71.19rem;
        height: 3.44rem;
        margin: 0 auto;
        margin-bottom: 3.44rem;
        overflow: hidden
    }

    .app .app_nav .nav_item {
        width: auto;
        padding: 1.25rem 2.5rem;
        font-size: 1.06rem;
        background-color: #f2f2f2;
        margin-right: .63rem;
        margin-bottom: 0;
        color: #333333;
        transition: all .2s
    }

    .app .app_nav .nav_item:hover {
        background-color: #02457a;
        color: #fff
    }

    .app .app_nav .active_nav {
        background-color: #02457a;
        color: #fff
    }

    .app .about_swiper {
        width: 87.5rem;
        height: 20rem;
        margin: 0 auto;
        position: relative
    }

    .app .about_swiper .arrow_item {
        width: 2.5rem;
        height: 4.75rem;
        top: 45%
    }

    .app .about_swiper .arrow_left {
        left: -5rem;
        background-image: url(../images/arrow-left.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .arrow_right {
        right: -5rem;
        background-image: url(../images/arrow-right.png);
        background-size: 11px;
        background-repeat: no-repeat;
        background-position: center
    }

    .app .about_swiper .slide_box {
        width: 100%;
        height: 100%
    }

    .app .about_swiper .slide_box .title {
        font-size: 1.13rem;
        color: #333333;
        margin-top: 1.56rem;
        font-weight: normal
    }

    .app .about_swiper .slide_box .pic {
        width: 100%;
        height: 20rem
    }

    .app .about_swiper .slide_box .pic img {
        height: auto
    }

    .app .about_swiper .slide_box:hover .title {
        color: #02457a
    }

    .new {
        width: 100%;
        height: 45.5rem;
        background-color: #f8f8f8;
        padding-top: 4.81rem;
        margin: 6.25rem 0;
        margin-bottom: 0
    }

    .new .title {
        font-size: 2.75rem;
        text-align: center;
        font-weight: bold;
        margin-bottom: 1.25rem
    }

    .new .sub_title {
        font-size: #666666;
        font-size: 1.25rem;
        margin: 0 0;
        margin-bottom: 3.13rem;
        text-align: center
    }

    .new .new_swiper_box {
        padding: 0 1.88rem;
        height: 33.5rem
    }

    .new .new_swiper_box .swiper-slide {
        position: relative
    }

    .new .new_swiper_box .pic_box {
        width: 100%;
        height: 19.13rem
    }

    .new .new_swiper_box .info_box {
        width: 100%;
        background-color: #fff;
        position: absolute;
        left: 50%;
        bottom: 1rem;
        transform: translateX(-50%);
        transition: all .1s
    }

    .new .new_swiper_box .info_box .info_title {
        font-size: 1.25rem;
        padding: 0 1.88rem;
        margin-top: 2.5rem;
        margin-bottom: 1.56rem
    }

    .new .new_swiper_box .info_box .info_dec {
        padding: 0 1.88rem;
        font-size: 1rem;
        line-height: 1.63rem;
        height: 5rem
    }

    .new .new_swiper_box .info_box .info_time {
        padding: 0 1.88rem;
        font-size: 1rem;
        color: #999999;
        margin-bottom: 2.5rem
    }

    .new .new_swiper_box .info_box .info_time .icon {
        width: 1.88rem;
        height: 1.88rem;
        flex-shrink: 0;

    }

    .new .new_swiper_box .info_box .info_time .icon img {
        width: .63rem
    }

    .btn_group {
        width: 100%;
        height: 8.75rem;
        flex-direction: row;
        margin-top: 0;
        margin-bottom: 0
    }

    .btn_group .group_text {
        font-size: 1.25rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper {
        height: 100%;
        margin-left: 9.38rem;
        margin-bottom: 0
    }

    .btn_group .btn_wrapper .btn_item {
        width: 12rem;
        height: 3.88rem;
        border: 1px solid #02457a;
        margin: 0 1.25rem;
        font-size: 1rem;
        color: #02457a
    }

    .btn_group .btn_wrapper .btn_item .icon {
        width: 1.75rem;
        height: 1.38rem;
        background-position: center;
        background-repeat: no-repeat;
        background-size: contain;
        margin-right: .94rem
    }

    .btn_group .btn_wrapper .btn_item:hover {
        color: #fff;
        background-color: #02457a
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1):hover .icon {
        background-image: url(../images/icon8.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2):hover .icon {
        background-image: url(../images/icon10.png)
    }

    .btn_group .btn_wrapper .active_btn {
        background-color: #02457a;
        color: #fff
    }

    .btn_group .btn_wrapper .btn_item:nth-child(1) .icon {
        background-image: url(../images/icon11.png)
    }

    .btn_group .btn_wrapper .btn_item:nth-child(2) .icon {
        background-image: url(../images/icon9.png)
    }
}