html,
body {
    position: relative;
    height: 100%;
}

.header {
    width: 100%;
    height: 170px;
    box-sizing: border-box;
    height: 90px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    padding: 0 80px;
    background: linear-gradient(180deg, rgba(0,0,0,.7),rgba(0,0,0,.0));
}

.header .other {
    display: none
}

.header .logo {
    margin-top: 33px;
    float: left;
}

.header .logo a {
    display: block;
}

.header .logo .img-box {
    display: inline-block;
    vertical-align: middle;
    position: relative;
}

.header .logo img {
    display: block;
    
    transition: all .3s ease;
}

.header .logo img.hide {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
}

.other {
    text-align: right;
    font-size: 14px;
    color: #fff;
    height: 50px;
    line-height: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

.other a {
    color: #fff;
    display: inline-block;
}

.other a.search {
    background: url("../image/icon-2.png") left center no-repeat;
    padding-left: 25px;
    cursor: pointer;
}

.other a.lang {
    background: url("../image/lang1.png") left center no-repeat;
    padding-left: 25px;
    cursor: pointer;
}

.nav {
    float: right;
    margin-top: 49px;
    width: calc(100% - 380px);
    text-align: right;
}

.nav>li {
    display: inline-block;
    padding-left: 50px;
    position: relative;
    cursor: pointer;
}

.nav>li.lang {
    display: inline-block;
    color: #fff;
}

.nav>li.lang a.search {
    background: url("../image/icon-2.png") left center no-repeat;
    padding-left: 25px;
    cursor: pointer;
    
}

.nav>li.lang a.lang {
    background: url("../image/lang1.png") left center no-repeat;
    padding-left: 25px;
    cursor: pointer;
}

.nav>li>a {
    font-size: 16px;
    color: #FFFFFF;
}

.nav>li .second-nav {
    display: none;
}




.fixed-search .bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 6;
    opacity: 0;
    visibility: hidden;
}

.fixed-search form {
    position: fixed;
    left: 1vw;
    right: 1vw;
    background: #fff;
    z-index: 7;
    padding: 0 70px;
    opacity: 0;
    top: 180px;
    visibility: hidden;
}

.fixed-search form input {
    display: block;
    width: 100%;
    height: 70px;
    padding: 0 10px;
    font-size: 14px;
    color: #333;
}

.fixed-search form button {
    position: absolute;
    left: 0;
    top: 0;
    width: 70px;
    height: 70px;
    background-position: center;
    background-repeat: no-repeat;
    background-image: url("../image/icon-1.svg");
    background-size: auto 20px;
    cursor: pointer;
    background-color: transparent;
}

.fixed-search form .close {
    position: absolute;
    width: 70px;
    height: 70px;
    right: 0;
    top: 0;
    background-position: center;
    background-repeat: no-repeat;
    cursor: pointer;
}

.fixed-search form .close svg {
    width: 16px;
    height: 16px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin: -8px 0 0 -8px;
}

.fixed-search.active .bg,
.fixed-search.active form {
    opacity: 1;
    visibility: visible;
}

.swiper-container {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: -webkit-box;
    display: -ms-fslexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
}

#swiper-container2 .swiper-slide {
    font-size: 18px;
    height: auto;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    display: block;
    
    
    color: #fff;
}

.swiper-container3 {
    position: relative;
}

.swiper-container3 .next {
    position: absolute;
    width: 19px;
    height: 35px;
    background: white;
    bottom: 108px;
    left: 80px;
    z-index: 100;
}

.ydbanner {
    display: none;
}

.swiper-container3 .prev {
    position: absolute;
    width: 19px;
    height: 35px;
    background: white;
    bottom: 108px;
    left: 248px;
    z-index: 100;
}

.header_box {
    width: 100%;
    height: 100%;
    position: relative;
    text-align: center;
}

.header_box .title {
    position: absolute;
    line-height: 70px;
    font-size: 50px;
    text-align: left;
    width: 850px;
    height: 260px;
    top: 50%;
    margin-top: -130px;
    left: 80px;
    z-index: 22;
}

.header_box .title a {
    color: #FFFFFF;
    display: block;
}

.header_box .learnmore {
    position: relative;
    top: 60px;
    width: 176px;
    height: 56px;
    border: 2px solid #FFD302;
    line-height: 56px;
    font-size: 20px;
    color: #FFD302;
    text-align: center;
}

.header_box img {
    width: 100%;
    height: 100%;
    min-width: 1920px;
    z-index: 1;
    display: inline-block;
}

.swiper_two .center {
    background: white;
}

.swiper_two .center-wrapper {
    
    
    padding-bottom: 30px;
    
    
}

.swiper_two .center-wrapper .news {
    padding-top: 110px;
    padding: 0px 4.4vw 0 4.4vw;
}

.swiper_two .center-wrapper .news .news_titile {
    text-align: center;
    position: relative;
}

.swiper_two .center-wrapper .news .news_titile>a {
    font-size: 36px;
    color: #00457D;
    font-weight: bold;
}

.swiper_two .center-wrapper .news .news_titile::after {
    content: '';
    display: block;
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: #00457D;
}

.swiper_two .center-wrapper .news .news_top {
    margin-top: 77px;
    margin-bottom: 40px;
    display: flex;
    justify-content: space-between;
}

.swiper_two .center-wrapper .news .news_top li {
    width: 28.8vw;
}

.swiper_two .center-wrapper .news .news_top li:last-child {
    margin-right: 0;
}

.swiper_two .center-wrapper .news .news_top li a {
    display: block;
}

.swiper_two .center-wrapper .news .news_top li a .img {
    overflow: hidden;
}

.swiper_two .center-wrapper .news .news_top li a .img img {
    width: 100%;
    height: 324px;
    cursor: pointer;
    transition: all 0.6s;
}

.swiper_two .center-wrapper .news .news_top li a .img img:hover {
    transform: scale(1.1);
}

.swiper_two .center-wrapper .news .news_top li a .text {
    height: 200px;
    background: #F6F7F8;
    padding: 32px 30px 0;
}

.swiper_two .center-wrapper .news .news_top li a .text .time {
    font-size: 18px;
    color: #333333;
    opacity: .8;
    display: block;
    text-align: left;
}

.swiper_two .center-wrapper .news .news_top li a .text .title {
    margin-top: 20px;
    font-size: 22px;
    color: #333333;
    letter-spacing: 0;
    text-align: left;
    line-height: 36px;
}

.swiper_two .center-wrapper .news .news_end {
    display: flex;
    
    margin-bottom: 96px;
}

.swiper_two .center-wrapper .news .news_end li {
    width: 28.8vw;
    height: 120px;
    overflow: hidden;
}

.swiper_two .center-wrapper .news .news_end li a {
    display: block;
}

.swiper_two .center-wrapper .news .news_end li a img {
    width: 205px;
    height: 120px;
    float: left;
    cursor: pointer;
    transition: all 0.6s;
}

.swiper_two .center-wrapper .news .news_end li a img:hover {
    transform: scale(1.1);
}

.swiper_two .center-wrapper .news .news_end li a .time {
    display: none;
}

.swiper_two .center-wrapper .news .news_end li a .text {
    font-size: 20px;
    color: #333333;
    line-height: 30px;
    margin-left: 220px;
    margin-bottom: 96.3px;
    text-align: left;
}




.swiper_two .center-wrapper .products {
    padding-top: 90px;
    background: #F7F8F9;
}

.swiper_two .center-wrapper .products .products_titile {
    letter-spacing: 0;
    text-align: center;
    position: relative;
    padding: 0 4.4vw;
}

.swiper_two .center-wrapper .products .products_titile>a {
    font-size: 36px;
    color: #00457D;
    font-weight: bold;
}

.swiper_two .center-wrapper .products .products_titile::after {
    content: '';
    display: block;
    position: absolute;
    top: 66px;
    left: 50%;
    width: 100px;
    height: 3px;
    background: #00457D;
    
    transform: translateX(-50%);
}

.swiper_two .center-wrapper .products .productlist {
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    padding: 0 4.4vw;
}

.swiper_two .center-wrapper .products .productlist>li {
    width: 100%;
    height: 539.7px;
    margin-bottom: 70.3px;
    display: flex;
    justify-content: space-between;
    text-align: left;
}

.swiper_two .center-wrapper .products .productlist>li:nth-child(even) {
    flex-direction: row-reverse;
}

.swiper_two .center-wrapper .products .productlist li .productlist_img {
    width: 45.8vw;
    height: 539.7px;
    overflow: hidden;
}

.swiper_two .center-wrapper .products .productlist li .productlist_img img {
    width: 100%;
    height: 100%;
    cursor: pointer;
    transition: all 0.6s;
    
}

.swiper_two .center-wrapper .products .productlist li .productlist_img img:hover {
    transform: scale(1.1);
}

.swiper_two .center-wrapper .products .productlist>li .text {
    width: 45.8vw;
    box-sizing: border-box;
    display: inline;
    padding-left: 2.6vw;
}

.swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text {
    margin-left: 0;
    padding-right: 2.6vw;
    padding-left: 0;
}

.swiper_two .center-wrapper .products .productlist li .text .title {
    height: 45px;
    line-height: 45px;
    font-size: 26px;
    color: #00457D;
    text-align: left;
    margin-top: 15px;
    position: relative;
    
    font-weight: bolder;
}

.swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text .title {
    float: right;
}

.swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text .content {
    margin-top: 100px;
}

.swiper_two .center-wrapper .products .productlist li:nth-child(even) .text .title::after {
    content: '';
    display: block;
    position: absolute;
    width: 80px;
    height: 2px;
    background-color: #00457D;
    top: 65px;
    right: 0px
}

.swiper_two .center-wrapper .products .productlist li:nth-child(odd) .text .title::after {
    content: '';
    display: block;
    position: absolute;
    width: 80px;
    height: 2px;
    background-color: #00457D;
    top: 65px;
    left: 0px;
}

.swiper_two .center-wrapper .products .productlist li .text .content {
    margin-top: 42px;
    font-size: 18px;
    color: #333333;
    letter-spacing: 0;
    text-align: justify;
    line-height: 30px;
    margin-bottom: 30px;
}

.swiper_two .center-wrapper .products .productlist li .text ul {}

.swiper_two .center-wrapper .products .productlist li .text ul li {
    height: 28px;
    line-height: 28px;
    margin-bottom: 20px;
    padding-left: 15px;
    background-image: url(../image/libj.png);
    background-repeat: no-repeat;
    background-position: left center;
    
    
    
}

.swiper_two .center-wrapper .products .productlist li .text ul li a {
    
    font-size: 20px;
    color: #333333;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    display: block;
}

.learnmore {
    margin-top: 49px;
    width: 140px;
    height: 50px;
    line-height: 50px;
    background: rgba(0, 90, 164, 0.00);

    text-align: center;
}

.learnmore a {
    font-size: 18px;
    color: #00457D;
    display: block;
    border: 2px solid #00457D;
}

.learnmore a:hover {
    color: white;
    background: #00457D;
    transition: all .5s ease 0s;
    boborder:none;
}

.swiper_two .center-wrapper .products .productlist li:last-child {
    margin-bottom: 96px;
}

.swiper_two .center-wrapper .services {
    padding: 0px 4.4vw 52px 4.4vw;
    height: 760px;
    box-sizing: border-box;
    background: url(../image/syservices.png) #F7F8F9 right center no-repeat;
}

.swiper_two .center-wrapper .services .content .news_titile {
    letter-spacing: 0;
    text-align: center;
    position: relative;
}

.swiper_two .center-wrapper .services .content .news_titile a {
    font-size: 36px;
    color: #00457D;
    font-weight: bold;
}

.swiper_two .center-wrapper .services .content .news_titile::after {
    content: '';
    display: block;
    position: absolute;
    bottom: -24px;
    left: 50%;
    margin-left: -3.4vw;
    width: 6.8vw;
    height: 3px;
    background: #00457D;
}

.swiper_two .center-wrapper .services .list {
    margin-top: 74px;
    border: 1px solid #999999;
    width: 100%;
    height: 430px;
    display: flex;
    justify-content: space-between;
}

.swiper_two .center-wrapper .services .list dl {
    border-right: 1px solid #999;
    text-align: left;
    flex: 1;
}

.swiper_two .center-wrapper .services .list dt {
    font-size: 24px;
    color: #FFFFFF;
    line-height: 34px;
    background: #004581;
    padding: 40px 24px;
    min-height: 68px;
}

.swiper_two .center-wrapper .services .list dd {
    margin-top: 20px;
    font-size: 20px;
    color: #333333;
    padding-left: 49px;
    padding-right: 25px;
    background-image: url(../image/service24.png);
    background-repeat: no-repeat;
    background-position: 24px 4px;
    text-align: justify;
    overflow: hidden;
    max-height: 224px;
    overflow: hidden;
}

.swiper_two .cases {
    padding-top: 30px;
    padding-bottom: 30px;
    
    background-image: url(../image/redjb.png);
    background-repeat: no-repeat;
    background-position: right bottom;
    position: relative;
}

.swiper_two .cases::before {
    content: '';
    display: block;
    width: 20.5vw;
    height: 515px;
    position: absolute;
    left: 0;
    top: 0;
    background-image: url(../image/bluejb.png);
    background-repeat: no-repeat;
    background-position: left top;
    pointer-events: none;
}

.swiper_two .cases .content {
    width: 95.8vw;
    
    margin-left: 4.2vw;
}

.swiper_two .cases .content .news_titile {
    letter-spacing: 0;
    text-align: center;
    position: relative;
}

.swiper_two .cases .content .news_titile>a {
    font-size: 36px;
    color: #00457D;
    font-weight: bold;
}

.swiper_two .cases .content .news_titile::after {
    content: '';
    display: block;
    position: absolute;
    bottom: -24px;
    left: 50%;
    margin-left: -3.4vw;
    width: 6.8vw;
    height: 2px;
    background: #00457D;
}

.swiper_two .cases .content .list {
    margin-top: 84px;
    display: flex;
    flex-direction: column;
}

.swiper_two .cases .content .list li {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.swiper_two .cases .content .list li .left {
    width: 37.5vw;
    height: 422px;
}

.swiper_two .cases .content .list li .left .title {
    margin-top: 60px;
    margin-bottom: 20px;
}

.swiper_two .cases .content .list li .left .title a {
    display: block;
    height: 45px;
    line-height: 45px;
    font-size: 32px;
    color: #333333;
    text-align: left;
    font-weight: bold;
}

.swiper_two .cases .content .list li .left .jianjie {
    margin-bottom: 38px;
}

.swiper_two .cases .content .list li .left .jianjie a {
    display: block;
    font-size: 18px;
    color: #333333;
    line-height: 32px;
    text-align: left;
}

.swiper_two .cases .content .list li .right {
    width: 55vw;
    height: 422px;
    overflow: hidden;
}

.swiper_two .cases .content .list li .right a img {
    cursor: pointer;
    transition: all 0.6s;
}

.swiper_two .cases .content .list li .right a img:hover {
    transform: scale(1.1);
}

.swiper_two .footer {
    display: flex;
    flex-direction: column;
    padding-top: 72px;
    background: #00457D;
}

.swiper_two .footer .footer_top {
    display: flex;
    justify-content: space-between;
    width: 91.8vw;
    margin: 0 auto;
    padding-bottom: 28px;
    
}

.swiper_two .footer .footer_top .footer_top_left {
    width: 31.8vw;
    text-align: left;
}

.swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo .yd {
    display: none;
}

.swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo .pc {
    display: block;
}




.swiper_two .footer .footer_top .footer_top_left .number {
    padding-left: 22px;
    margin-top: 44px;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 24px;
    margin-bottom: 18px;
    background-image: url(../image/telephone.png);
    background-repeat: no-repeat;
    background-position: left center;
}

.swiper_two .footer .footer_top .footer_top_left .position {
    padding-left: 22px;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 30px;
}

.swiper_two .footer .footer_top .footer_top_left .p1 {
    background-image: url(../image/position.png);
    background-repeat: no-repeat;
    background-position: left center;
}

.swiper_two .footer .footer_top .footer_top_right ul {
    display: flex;
    justify-content: space-between;
    text-align: left;
}

.swiper_two .footer .footer_top .footer_top_right ul>li {
    margin-right: 2.1vw;
}

.swiper_two .footer .footer_top .footer_top_right ul>li:last-child {
    margin-right: 0px;
}

.swiper_two .footer .footer_top .footer_top_right ul li dt a {
    font-size: 16px;
    color: #FFFFFF;
    margin-bottom: 11px;
}

.swiper_two .footer .footer_top .footer_top_right ul li dd a {
    font-size: 14px;
    color: #FFFFFF;
    line-height: 36px;
    opacity: .7;
}




.swiper_two .footer .footer_bottom {
    width: 91.8vw;
    margin: 0 auto;
    border-top: 1px solid #fff;
    
    padding: 35px 0;
    text-align: center;
}

.swiper_two .footer .footer_bottom p {
    font-size: 14px;
    color: #C7CAD3;
    letter-spacing: 0;
    text-align: center;
    line-height: 28px;
}

.down {
    background: #fff;
    height: 80px;
    box-shadow: 0 5px 16px 0 rgb(0 0 0 / 6%);
    animation: myfirst .5s;
}

@keyframes myfirst {
    from {
        height: 100px;
    }
    to {
        height: 80px;
    }
}

.down .nav {
    margin-top: 0px;
    line-height: 80px;
}

.down .nav>li>a {
    color: black;
}

.down .nav>li.lang {
    color: black;
}

.down .logo img.hide {
    opacity: 1;
    height: 55px;
}

.down .logo {
    line-height: 80px;
    margin-top: 0px;
}

.down .nav>li.lang a.search {
    background: url(../image/sysearch.png) left center no-repeat;
}

.down .nav>li.lang a.lang {
    background: url(../image/sydq.png) left center no-repeat;
}




@media screen and (max-width: 1200px) {
    :root {
        --swiper-navigation-size: 20px !important;
    }
    .header .other {
        display: none;
    }
    .header .nav li:hover a.single {
        color: #0068B7;
    }
    .header .nav li.active a.single:after {
        transform: scaleX(1);
    }
    .nav-cont,
    .top,
    .main,
    .container {
        width: 100%;
    }
    .top,
    .container {
        padding: 0 15px;
    }
    .header {
        height: 60px;
        background-size: cover;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
    }
    .hover-bg {
        background: none;
    }
    .header {
        height: 60px;
        background-color: #fff;
        box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
        z-index: 1112;
    }
    .header .logo {
        left: 5vw;
        margin-top: -16px;
        position: absolute;
        top: 50%;
    }
    .header .logo img {
        height: 35px;
    }
    .header .logo img.show {
        opacity: 0;
    }
    .header .logo img.hide {
        opacity: 1;
    }
    .header .other {
        display: none;
    }
    .header .nav {
        position: fixed;
        top: 60px;
        left: 100%;
        width: 100%;
        height: 100%;
        background: #F5F6F7;
        padding: 65px 15px 0;
        text-align: left;
        z-index: 3;
        -webkit-transition: left 0.3s linear;
        -moz-transition: left 0.3s linear;
        -ms-transition: left 0.3s linear;
        transition: left 0.3s linear;
        overflow-y: scroll;
        margin-top: 0;
        box-sizing: border-box;
    }
    .header .nav>li {
        display: block;
        margin: 0;
        padding: 15px 0;
        width: 100%;
        border-bottom: 1px solid #D8D8D8;
        background-size: 3%;
    }
    .header .nav>li.submenu {
        background: url("../image/jia.png") right 20px no-repeat;
        background-size: 3%;
    }
    .header .nav>li.submenu.open {
        background: url("../image/jian.png") right 20px no-repeat;
        background-size: 3%;
    }
    .header .nav>li a.single,
    .header .nav>li.lang a {
        display: inline-block;
        vertical-align: top;
        line-height: normal;
        color: #333;
        padding: 0;
        font-size: 14px;
    }
    .header .nav>li.submenu.open>a {
        color: #0068B7;
    }
    .header .nav li a.single {
        color: #000;
    }
    .header .nav li a.single:after {
        display: none;
    }
    .nav>li ul li {
        margin: 0;
        background: none;
        box-shadow: none;
        padding: 0 15px;
    }
    .nav>li .second-nav {
        
        position: static;
        padding: 25px 0 0;
    }
    .nav>li .second-nav a {
        font-size: 13px;
        display: block;
        border-bottom: 1px solid #D8D8D8;
        width: 100%;
        padding-bottom: 15px;
        margin: 16px 0 0;
        color: #333;
    }
    .nav>li .second-nav a:last-child {
        border: 0;
    }
    .nav>li .second-nav a:first-of-type {
        margin-top: 0;
    }
    .nav>li .second-nav a:last-child {
        border: 0;
        padding-bottom: 0;
    }
    .nav>li.lang {
        display: block;
    }
    .header .nav li.lang a {
        color: #555555;
        background: url("../image/langhover.png") left center no-repeat;
        padding-left: 25px;
        height: 18px;
    }
    .header .nav li.lang a:before {
        background-image: url("404.png");
    }
    .header .nav.active {
        left: 0;
    }
    .headeropen {
        background: #fff;
    }
    .header.headeropen .logo img.show {
        opacity: 0;
    }
    .header.headeropen .logo img.hide {
        opacity: 1;
    }
    .header .search {
        width: 60px;
        height: 60px;
        background-color: #0068B7;
        display: none;
    }
    .fixed-search form {
        position: absolute;
        visibility: visible;
        margin: 0;
        opacity: 0;
        left: 100%;
        border: 1px solid #D8D8D8;
        border-radius: 4px;
        z-index: 11111;
        background: #F5F6F7;
        padding: 0;
        top: 75px;
        -webkit-transition: left 0.3s linear;
        -moz-transition: left 0.3s linear;
        -ms-transition: left 0.3s linear;
        transition: left 0.3s linear;
    }
    .fixed-search form input {
        height: 35px;
        background: none;
    }
    .fixed-search form .close {
        display: none;
    }
    .fixed-search form button {
        right: 0;
        left: auto;
        height: 35px;
        background: url("../image/wapsearch.png") center center no-repeat;
        background-size: 25%;
        height: 35px;
        top: 0px;
    }
    .header.headeropen .fixed-search form {
        opacity: 1;
        left: 15px;
        right: 15px;
    }
    .mNavBtn {
        display: block;
        width: 24px;
        height: 16px;
        right: 15px;
        top: 22px;
        position: fixed;
        cursor: pointer;
        z-index: 4;
    }
    .mNavBtn.active {
        right: 20px;
    }
    .mNavBtn.active .line2 {
        display: none;
    }
    .mNavBtn.active .line1 {
        -webkit-transform: rotate(45deg);
        -moz-transform: rotate(45deg);
        -ms-transform: rotate(45deg);
        transform: rotate(45deg);
        top: 7px;
        background: #333;
    }
    .mNavBtn.active .line3 {
        -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
        transform: rotate(-45deg);
        bottom: 7px;
        background: #333;
    }
    .mNavBtn span {
        position: absolute;
        left: 0;
        width: 24px;
        height: 2px;
        background: #fff;
        -webkit-transition: all 0.3s ease;
        -moz-transition: all 0.3s ease;
        -ms-transition: all 0.3s ease;
        transition: all 0.3s ease;
    }
    .mNavBtn span.line1 {
        top: 0;
        background: black;
    }
    .mNavBtn span.line2 {
        top: 7px;
        background: black;
    }
    .mNavBtn span.line3 {
        bottom: 0;
        background: black;
    }
    .mNavBtn.active span {
        background: #0068B7;
    }
    #swiper-container2 .swiper-slide_four {
        height: 100%;
    }
    #swiper-container2 .swiper-slide_four .header_box .title {
        top: 333.5px;
        left: 15px;
        width: 345px;
        height: 54px;
        line-height: 27px;
        font-size: 20px;
        margin-top: 0px;
        z-index: 2;
    }
    #swiper-container2 .swiper-slide_four .header_box .learnmore {
        position: absolute;
        width: 80px;
        height: 28px;
        line-height: 28px;
        font-size: 12px;
        left: 0px;
        bottom: 40px;
        top: 79px;
        border: 1px solid #FFD302;
        display: block;
    }
    #swiper-container2 .swiper-slide_four .swiper-button-next {
        left: 338px;
        bottom: 40px;
        width: 15px !important;
        height: 29px !important;
        background-image: url(../image/nextyd.png);
        background-size: 80%;
    }
    #swiper-container2 .swiper-slide_four .swiper-button-prev {
        left: 270.5px;
        bottom: 40px;
        width: 15px !important;
        height: 29px !important;
        background-image: url(../image/prevyd.png);
        background-size: 80%;
    }
    #swiper-container2 .swiper-slide_four .swiper-pagination {
        width: 37px;
        height: 17.5px;
        left: 293.5px;
        bottom: 46px;
        line-height: 17.5px;
    }
    #swiper-container2 .swiper-slide_four .swiper-pagination-current {
        width: 18.5px;
        height: 15.5px;
        color: #FFD302;
        font-size: 15px;
    }
    #swiper-container2 .swiper-slide_four .swiper-pagination-total {
        font-size: 12px;
    }
    .swiper_two .center {
        
        
    }
    #swiper-container2 .swiper-slide {
        
        margin: 0 auto;
    }
    #swiper-container2 .swiper-slide video {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
    }
    .swiper-slide_one {
        display: none;
    }
    .swiper-wrapper .swiper_two .ydbanner {
        display: block;
        width: 100%;
        height: 480px;
        overflow: hidden;
        position: relative;
    }
    .swiper_two .center-wrapper {
        width: 100%;
        padding-bottom: 0px;
    }
    .swiper_two .center-wrapper .news {
        padding-top: 25px;
    }
    .swiper_two .center-wrapper .news .news_titile::after {
        
        height: 2px;
        font-weight: bold;
        width: 60px;
        top: 40px;
    }
    .swiper_two .center-wrapper .news .news_top {
        flex-direction: column;
    }
    .swiper_two .center-wrapper .news .news_top li {
        width: 100%;
    }
    .swiper_two .center-wrapper .news .news_top {
        margin-top: 40px;
        margin-bottom: 0px;
    }
    .swiper_two .center-wrapper .news .news_titile {
        font-size: 18px;
        font-weight: bold;
    }
    .swiper_two .center-wrapper .news .news_titile>a {
        font-size: 18px;
    }
    .swiper_two .center-wrapper .news .news_top li {
        margin-bottom: 20px;
    }
    .swiper_two .center-wrapper .news .news_top li a .img {
        overflow: hidden;
    }
    .swiper_two .center-wrapper .news .news_top li a .img img {
        height: auto;
        cursor: pointer;
        transition: all 0.6s;
    }
    .swiper_two .center-wrapper .news .news_top li a .img img:hover {
        transform: scale(1.1);
    }
    .swiper_two .center-wrapper .news .news_top li a .text {
        height: auto;
        padding: 15px;
    }
    .swiper_two .center-wrapper .news .news_top li a .text .time {
        font-size: 14px;
    }
    .swiper_two .center-wrapper .news .news_top li a .text .title {
        font-size: 15px;
        margin-top: 10px;
        line-height: 20px;
    }
    .swiper_two .center-wrapper .news .news_end {
        flex-direction: column;
        margin-bottom: 0px;
    }
    .swiper_two .center-wrapper .news .news_end li {
        width: auto;
        height: auto;
    }
    .swiper_two .center-wrapper .products {
        padding-top: 25px;
        background: #fff;
    }
    .swiper_two .center-wrapper .products .products_titile {
        font-size: 18px;
        font-weight: bold;
    }
    .swiper_two .center-wrapper .products .products_titile>a {
        font-size: 18px;
    }
    .swiper_two .center-wrapper .products .products_titile::after {
        content: '';
        display: block;
        position: absolute;
        top: 40px;
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
        height: 2px;
        background: #00457D;
    }
    .swiper_two .center-wrapper .products .productlist {
        margin-top: 40px;
    }
    .swiper_two .center-wrapper .products .productlist>li {
        flex-direction: column;
        width: auto;
        height: auto;
    }
    .swiper_two .center-wrapper .news .news_end li {
        background-color: #F6F7F8;
        margin-bottom: 20px;
    }
    .swiper_two .center-wrapper .news .news_end li:last-child {
        margin-bottom: 0px;
    }
    .swiper_two .center-wrapper .news .news_end li a {
        
    }
    .swiper_two .center-wrapper .news .news_end li a img {
        width: 170px;
        height: 95px;
        cursor: pointer;
        transition: all 0.6s;
    }
    .swiper_two .center-wrapper .news .news_end li a img:hover {
        transform: scale(1.1);
    }
    .swiper_two .center-wrapper .news .news_end li a .time {
        display: block;
        font-size: 14px;
        color: #333333;
        text-align: left;
        margin-left: 180px;
        padding-top: 10px;
        margin-bottom: 5px;
        opacity: .8;
    }
    .swiper_two .center-wrapper .news .news_end li a .text {
        font-size: 14px;
        margin-left: 180px;
        margin-bottom: 0px;
        line-height: 18px;
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        line-clamp: 3;
        -webkit-box-orient: vertical;
        padding-top: 15px;
        line-height: 22px;
    }
    .swiper_two .center-wrapper .products .productlist>li {
        margin-bottom: 25px;
    }
    .swiper_two .center-wrapper .products .productlist li:last-child {
        margin-bottom: 25px;
    }
    .swiper_two .center-wrapper .products .productlist li .productlist_img {
        width: auto;
        height: auto;
    }
    .swiper_two .center-wrapper .products .productlist>li .text {
        width: auto;
    }
    .swiper_two .center-wrapper .products .productlist>li:nth-child(even) {
        flex-direction: column;
    }
    .swiper_two .center-wrapper .products .productlist li .text .content {
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        font-size: 13px;
        margin-top: 7.5px;
        margin-bottom: 7.5px;
        line-height: 18px;
    }
    .swiper_two .center-wrapper .products .productlist li .text .title {
        height: 20px;
        line-height: 20px;
        font-size: 15px;
        color: #00457D;
        text-align: left;
        margin-top: 15px;
        color: black;
    }
    .swiper_two .center-wrapper .products .productlist li:nth-child(odd) .text .title::after {
        content: none;
    }
    .swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text .title {
        float: left;
    }
    .swiper_two .center-wrapper .products .productlist li:nth-child(even) .text .title::after {
        content: none;
    }
    .swiper_two .center-wrapper .products .productlist li .text ul li {
        margin-bottom: 10px;
        height: 15px;
        line-height: 15px;
        
        background-position: 0px 6px;
        text-align: justify;
        background-size: 6px;
    }
    .swiper_two .center-wrapper .products .productlist li .text ul li a {
        font-size: 13px;
        color: #00457D;
    }
    .learnmore {
        width: 80px;
        height: 28px;
        
        margin-top: 15px;
        box-sizing: border-box;
    }
    .learnmore a {
        font-size: 12px;
        display: block;
        height: 28px;
        line-height: 24px;
        width: 80px;
        border: 1px solid #00457D;
        box-sizing: border-box;
    }
    .swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text .title {
        float: none;
        color: black;
    }
    .swiper_two .center-wrapper .products .productlist>li:nth-child(even) .text .content {
        margin-top: 7.5px;
        margin-bottom: 7.5px;
    }
    .swiper_two .center-wrapper .services {
        height: auto;
        padding: 30px 15px 0px 15px;
        background: none;
    }
    .swiper_two .center-wrapper .services .content .news_titile a {
        font-size: 18px;
        font-weight: bold;
    }
    .swiper_two .center-wrapper .services .content .news_titile::after {
        width: 60px;
        height: 2px;
        margin-left: -30px;
        top: 40px;
    }
    .swiper_two .center-wrapper .services .list {
        flex-direction: column;
        background: none;
        height: auto;
        margin-top: 40px;
    }
    .swiper_two .center-wrapper .services .list dt {
        font-size: 15px;
        line-height: 17px;
        padding: 20px 12px;
    }
    .swiper_two .center-wrapper .services .list dl {
        margin-bottom: 20px;
        border-right: none;
    }
    .swiper_two .center-wrapper .services .list dd {
        margin-top: 10px;
        font-size: 13px;
        color: #333333;
        padding-left: 25px;
        padding-right: 12.5px;
        background-image: url(../image/service24.png);
        background-repeat: no-repeat;
        background-position: 12px 3px;
        text-align: justify;
        background-size: 6px;
    }
    .swiper_two .cases {
        padding-top: 35px;
        padding-bottom: 30px;
        background-image: none;
        padding-left: 15px;
        padding-right: 15px;
    }
    .swiper_two .cases .content {
        margin-left: 0px;
        width: auto;
    }
    .swiper_two .cases .content .list li {
        flex-direction: column-reverse;
        margin-bottom: 20px;
    }
    .swiper_two .cases .content .news_titile {
        font-size: 18px;
        height: 21px;
        line-height: 21px;
        font-weight: bold;
    }
    .swiper_two .cases .content .news_titile>a {
        font-size: 18px;
    }
    .swiper_two .cases::before {
        left: 0px;
        top: 25px;
        
        
        
        
        width: 150px;
        height: 200px;
        opacity: .6;
    }
    .swiper_two .cases .content .news_titile::after {
        width: 60px;
        top: 40px;
        margin-left: -30px;
    }
    .swiper_two .cases .content .list {
        margin-top: 50px;
    }
    .swiper_two .cases .content .list li .left {
        width: auto;
        height: auto;
    }
    .swiper_two .cases .content .list li .right {
        width: auto;
        height: auto;
    }
    .swiper_two .cases .content .list li .left .title {
        margin: 12px 0 7.5px 0;
    }
    .swiper_two .cases .content .list li .left .title a {
        font-size: 15px;
        font-weight: bold;
        height: 18px;
        line-height: 18px;
    }
    .swiper_two .cases .content .list li .left .jianjie {
        margin-bottom: 15px;
    }
    .swiper_two .cases .content .list li .left .jianjie a {
        opacity: 0.8;
        font-family: HelveticaNeue;
        font-size: 12px;
        color: #555555;
        line-height: 18px;
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .swiper_two .cases .content .list li .right a img {
        width: 100%;
    }
    .swiper_two .footer {
        padding-top: 0px;
        background-color: white;
    }
    .swiper_two .footer p {
        color: black;
    }
    .swiper_two .footer .footer_top {
        width: 100%;
        background-image: none;
        padding-bottom: 10px;
        padding: 15px 15px 0 15px;
        box-sizing: border-box;
        opacity: .8;
        background: #F0F1F3;
    }
    .swiper_two .footer .footer_top .footer_top_left p {
        color: black;
    }
    .swiper_two .footer .footer_top .footer_top_left {
        width: 100%;
    }
    .swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo {
        display: block;
        padding-bottom: 15px;
        border-bottom: 1px solid #D8D8D8;
    }
    .swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo .yd {
        display: block;
        width: 80%;
    }
    .swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo .pc {
        display: none;
    }
    .swiper_two .footer .footer_top .footer_top_left .footer_top_left_logo img {
        width: 100%;
    }
    .swiper_two .footer .footer_top .footer_top_left .number {
        margin-top: 12px;
        height: 15px;
        line-height: 15px;
        font-size: 12px;
        margin-bottom: 10px;
        color: black;
        background-image: url(../image/ydtelephone.png);
    }
    .swiper_two .footer .footer_top .footer_top_left .position {
        font-size: 11px;
        line-height: 12px;
        margin-bottom: 10px;
        color: black;
    }
    .swiper_two .footer .footer_top .footer_top_left .p1 {
        background-image: url(../image/ydposition.png);
        background-repeat: no-repeat;
        
    }
    .swiper_two .footer .footer_top .footer_top_right {
        display: none;
    }
    .swiper_two .footer .footer_bottom {
        width: 100%;
        border: 0px;
        background: #2D3854;
        padding: 15px 15px 15px 15px;
        box-sizing: border-box;
    }
    .swiper_two .footer .footer_bottom p {
        text-align: left;
        font-size: 11px;
        line-height: 16px;
        margin-bottom: 8px;
    }
}

@media screen and (min-width:1200px) and (max-width:1800px) {
    
    .nav{
        display: flex;
        justify-content: flex-end;
    }
    .nav>li{
        padding-left: 26px;
    }
    .nav>li>a{
        font-size: 10px;
        display: inline-block;
        height: 26px;
        line-height: 26px;
    }
}