/* header */
@media only screen and (min-device-width:1200px) {
    .homeHeader {
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        z-index: 99;
    }

    .homeHeader ._logo {
        display: block;
        height: 46px;
    }

    .homeHeader ._logo img {
        height: 100%;
    }

    .homeHeader ._item {
        padding: 0 2em;
    }

    .homeHeader ._item a {
        font-size: 16px;
        position: relative;
        display: block;
        color: rgba(255, 255, 255, 0.7);
        height: 60px;
        padding: 0 0.5em;
        line-height: 60px;
    }

    .homeHeader ._item a::before {
        content: "";
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 2px;
        background: #fff;
    }

    .homeHeader ._cur a,
    .homeHeader ._item:hover a {
        color: #fff;
    }

    .homeHeader ._cur a::before {
        display: block;
    }

    /* banner */
    .banner {
        position: relative;
        height: 700px;
        overflow: hidden;
    }

    .banner ul,
    .banner ._item {
        height: 100%;
    }

    .banner ._item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    /* serveLinks */
    .serveLinks {
        position: relative;
        z-index: 2;
        margin-top: -60px;
        margin-bottom: 60px;
        overflow: visible;
    }

    .serveLinks ._item {
        position: relative;
        top: 0;
        transition: all ease 0.3s;
        height: 120px;
        background: #fff;
        box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.18);
        border-radius: 4px;
        font-size: 12px;
        color: #646877;
        text-transform: uppercase;
        margin: 0 20px;
        cursor: pointer;
    }

    .serveLinks ._item:first-child {
        margin-left: 0;
    }

    .serveLinks ._item:last-child {
        margin-right: 0;
    }

    .serveLinks ._item ._ico {
        width: 56px;
        height: 56px;
        object-fit: cover;
        margin-left: 20px;
        margin-right: 10px;
    }

    .serveLinks ._item ._t {
        color: #4a4a4a;
        font-size: 20px;
    }

    .serveLinks ._item:hover {
        top: -8px;
        box-shadow: 0px 2px 16px 0px rgba(0, 0, 0, 0.3);
    }

    .serveLinks ._item:hover ._t {
        color: #406bd4;
    }

    /* s1 */
    .s1 {
        position: relative;
        margin-bottom: 60px;
    }

    .s1 ._layer {
        overflow: hidden;
    }

    .s1 ._t {
        position: absolute;
        left: 50%;
        margin-left: -650px;
        width: 910px;
        height: 177px;
        background: url(../img/index/s1-t.png) 0 0 no-repeat;
        background-size: 100% auto;
        font-size: 0;
    }

    .s1 ._c {
        margin-top: 150px;
        float: left;
        width: 500px;
    }

    .s1 ._pic {
        float: right;
        margin-top: 20px;
        width: 634px;
    }

    /* s2 */
    .s2 {
        position: relative;
        height: 700px;
        background: url(../img/index/s2-b.png) center no-repeat;
        background-size: 100% auto;
    }

    .s2 ._t {
        position: relative;
        font-size: 0;
        height: 177px;
        background: url(../img/index/s2-t.png) no-repeat;
        background-size: auto 100%;
        margin-left: -50px;
    }

    /* solutionBanner */
    .solutionBanner {
        position: relative;
        height: 420px;
        overflow: hidden;
    }

    .solutionBanner ul li a {
        display: block;
        height: 100%;
    }

    .solutionBanner ul li img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .solutionBannerSlideNav {
        position: absolute;
        right: 60px;
        left: auto;
        top: 0;
        bottom: 0;
        margin: -60px 0;
        width: 220px;
        overflow: visible;
    }

    .solutionBannerSlideNav a {
        position: relative;
        display: block;
        text-transform: uppercase;
        color: #646877;
        font-size: 12px;
        width: auto;
        height: auto;
        box-shadow: 0px 2px 7px 0px rgba(0, 0, 0, 0.31);
        border-radius: 4px;
        margin: 6px 0;
        text-align: left;
        text-indent: 0;
        box-sizing: border-box;
        padding-left: 50px;
        flex: 1;
        background: #fff;
        cursor: pointer;
        transition: none;
        line-height: 1.7;
    }

    .solutionBannerSlideNav a::before {
        content: "";
        width: 10px;
        height: 10px;
        border: 4px solid #406bd4;
        border-radius: 50%;
        position: absolute;
        left: 20px;
        top: 20px;
    }

    .solutionBannerSlideNav ._title {
        display: block;
        color: #4a4a4a;
        font-size: 18px;
        margin-top: 8px;
    }

    .solutionBannerSlideNav .on,
    .solutionBannerSlideNav a:hover {
        background: #406bd4;
        color: #fff;
    }

    .solutionBannerSlideNav .on::before,
    .solutionBannerSlideNav a:hover::before {
        border-color: #fff;
    }

    .solutionBannerSlideNav .on ._title,
    .solutionBannerSlideNav a:hover ._title {
        color: #fff;
    }

    /* s3 */
    .s3 {
        padding: 60px 0;
        background: #f0f2f5;
    }

    .homeTitle {
        color: #4a4a4a;
        font-size: 18px;
        text-transform: uppercase;
        margin-bottom: 20px;
        line-height: 1.2;
    }

    .homeTitle h2 {
        font-size: 26px;
        font-weight: 700;
    }

    .homeTitle ._en {
        vertical-align: text-bottom;
    }

    .homeTitle ._en::before {
        content: "";
        width: 10px;
        height: 10px;
        border: 4px solid #406bd4;
        border-radius: 50%;
        display: inline-block;
        margin-right: 5px;
    }

    .s3_cont {
        overflow: hidden;
    }

    .s3_cont .l_pic {
        float: left;
        margin-right: 50px;
        width: 580px;
    }

    .s3_cont .r_cont {
        margin-top: 80px;
        color: #646877;
    }

    .s3_cont .l_cont {
        color: #646877;
        margin-top: 80px;
    }

    .s3_cont .r_pic {
        float: right;
        width: 500px;
        margin-left: 50px;
    }

    /* s4 */
    .s4 {
        background: url(../img/index/s4-b.png) center no-repeat #e5ebf6;
        background-size: auto 100%;
        padding: 60px 0;
    }

    .s4_title {
        color: #406bd4;
        font-size: 28px;
        font-weight: 700;
        text-align: center;
    }

    .ask_btn {
        display: block;
        width: 190px;
        height: 40px;
        line-height: 40px;
        text-align: center;
        background: #406bd4;
        color: #fff;
        margin: auto;
        border-radius: 20px;
        margin-top: 40px;
    }

    .ask_btn:hover {
        opacity: 0.8;
        color: #fff;
    }

    /* s5 */
    .s5 {
        position: relative;
        background: url(../img/index/s2-b.png) center no-repeat;
        background-size: 100% auto;
        padding-bottom: 60px;
    }

    .s5 ._t {
        position: relative;
        font-size: 0;
        height: 177px;
        background: url(../img/index/s5-t.png) no-repeat;
        background-size: auto 100%;
        margin-left: -50px;
    }
}

@media only screen and (max-device-width:1199px) {







    .serve-box {
        padding: 0 0.1rem 0.4rem;
        margin-top: -0.7rem;
        flex-wrap: wrap;
    }

    .serve {
        width: calc(50% - 0.2rem);
        height: 1.4rem;
        background: #ffffff;
        box-shadow: 0px 2px 4px 0px rgba(0, 0, 0, 0.18);
        border-radius: 2px;
        margin: 0 0.1rem 0.2rem;
        padding-left: 0.2rem;
        box-sizing: border-box;
        flex-shrink: 0;
    }

    .serve img {
        width: 0.68rem;
        margin-right: 4px;
        object-fit: cover;
    }

    .serve h3 {
        font-size: 0.28rem;
        color: #4a4a4a;
        margin-bottom: 4px;
    }

    .serve p {
        font-size: 0.16rem;
        color: #646877;
    }

    .position {
        font-size: 0.24rem;
        font-weight: 400;
        color: #646877;
        line-height: 0.4rem;
        letter-spacing: 1px;
        margin-bottom: 0.6rem;
    }

    .solution {
        padding: 0.3rem 0 0.6rem;
        background: #f7fafd;
    }

    .development {
        padding: 0.8rem 0.1rem 0.5rem;
        font-size: 0.24rem;
        color: #646877;
        line-height: 0.4rem;
        letter-spacing: 1px;
    }

    .number {
        font-size: 0.24rem;
        color: #646877;
        line-height: 0.4rem;
        letter-spacing: 1px;
    }

    .btn {
        width: 2.1rem;
        height: 0.6rem;
        background: #406bd4;
        border-radius: 40px;
        margin: 0.5rem auto 0;
        color: #fff;
        font-size: 0.24rem;
    }

    .partner {
        padding: 0.2rem 0 0.4rem;
        background: #f7fafd;
    }

    .swiper {
        padding: 0 0.15rem;
    }

    ._item {
        width: 4.57rem;
        height: 6.4rem;
        margin: 0 0.15rem 8px;
        box-shadow: 0px 0 8px 0px rgba(0, 0, 0, 0.1);
        border-radius: 0px 0px 8px 8px;
        flex-shrink: 0;
    }

    ._ion {
        display: inline-block;
        width: 0.24rem;
        height: 0.24rem;
        border: 1px solid #406bd4;
        border-radius: 50%;
        margin-right: 5px;
        position: relative;
    }

    ._ion::after {
        content: "";
        display: inline-block;
        width: 0.2rem;
        height: 0.2rem;
        border-radius: 50%;
        background: #406bd4;
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        top: 0;
        margin: auto;
    }

    ._title {
        font-size: 0.28rem;
        color: #4a4a4a;
        padding: 0.3rem 0.3rem 0.2rem;
    }

    ._info {
        font-size: 0.24rem;
        color: #646877;
        line-height: 0.4rem;
        margin-bottom: 0.2rem;
        padding: 0 0.3rem;
    }

    ._sbtn {
        width: 2.1rem;
        height: 0.6rem;
        border-radius: 0.4rem;
        border: 1px solid #406bd4;
        font-size: 0.24rem;
        color: #406bd4;
        margin-left: .3rem;
    }
}