@media (max-width: 750px) {

    /* Carousel base class */
    .carousel-indicators {
        bottom: 0px;
    }

    .carousel-caption {
        position: absolute;
        top: 0;
        left: 2rem;
        text-align: left;
        padding-top: 0px;
        z-index: 10; /* S.serviceability .itemince positioning the image, we need to help out the caption */
    }

    /* Declare heights because of positioning of img element */
    .carousel .item {
        height: 230px;
        background-color: #ffffff;
    }

    .carousel > .carousel-inner > .item > img {
        position: absolute;
        top: 0;
        left: 0;
        min-width: 100%;
        height: 230px;
        object-fit: fill;
        overflow-x: hidden;
    }

    .carousel .carousel-indicators li {
        background-color: rgba(0, 0, 0, 0.5);
    }

    .carousel .carousel-indicators .active {
        background-color: rgba(135, 206, 235, 1);
    }

    .carousel-control {
        background: none !important;
    }

    .carousel-caption h1 {
        font-size: 16px;
        font-weight: bold;
        color: #333333;
        line-height: 16px;
    }

    .carousel-caption ul {
        padding-left: 20px;
    }

    .carousel-caption ul li {
        font-size: 12px;
        color: #333333;
        line-height: 20px;
    }

    .carousel-caption a:focus {
        outline: none;
    }

    .carousel-caption .btn {
        margin-left: 15px;
        padding: 0px;
        width: 70px;
        height: 20px;
        line-height: 20px;
        background: #3f78fb;
        border-radius: 15px;
        font-size: 12px;
        color: #fafafa;

    }

    .carousel-control.left,
    .carousel-control.right {
        background: rgba(248, 248, 248, 0);
    }

    .marketing {
        margin-top: 25px;
        width: 100%;
    }

    .marketing .header {
        text-align: center;
    }

    .marketing .header .title {
        height: 20px;
        line-height: 20px;
        font-size: 20px;
        font-weight: 500;
        color: #333333;
    }

    .marketing .header .sub_title {
        margin-top: 5px;
        height: 12px;
        font-size: 12px;
        font-family: Arial;
        color: #666666;;
    }

    .marketing .list {
        width: 100%;
        padding-top: 20px;
        padding-bottom: 20px;
        margin: 0px;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
    }

    .marketing .list .item {

        text-align: center;
        transition: all 0.3s linear;
    }


    .marketing .list .item a:hover {
        text-decoration: none;
    }


    .marketing .list .item .image img {

        text-align: center;
        vertical-align: middle;
    }

    .marketing .list .item .title {
        text-align: center;
        margin-top: 10px;
        height: 28px;
        font-size: 16px;
        color: #333333;
        line-height: 28px;
    }

    .marketing .list .item .desc {
        text-align: center;
        margin-top: 15px;
        font-size: 12px;
        font-weight: 400;
        color: #333333;
        line-height: 16px;
    }

    .serviceability {
        width: 100%;
        background: #3f78fb;
        padding-top: 30px;
        padding-bottom: 30px;
    }

    .serviceability .header {
        text-align: center;
    }

    .serviceability .header .title {
        height: 20px;
        font-size: 20px;
        font-weight: 500;
        color: #ffffff;
        line-height: 20px;
    }

    .serviceability .header .sub_title {
        margin-top: 5px;
        height: 12px;
        font-size: 12px;
        color: #ffffff;
        line-height: 12px;
    }

    .serviceability .list {
        display: flex;
        flex-wrap: wrap;
        padding-top: 6px;
    }

    .serviceability .item {
        margin-top: 25px;
        width: 49.5%;
        padding: 0 8px !important;
        display: flex;
        flex-direction: row;
    }

    .serviceability .item:nth-child(2n) {
        clear: both;
    }

    .serviceability .list .item .icon {
        width: 54px;
        height: 54px;
        float: left;
    }

    .serviceability .list .item .desc {
        margin-left: 7px;
        width: calc(100% - 54px);
        height: 50px;
    }

    .serviceability .list .item .desc .title {
        height: 15px;
        line-height: 15px;
        font-size: 12px;
        color: #ffffff;
    }

    .serviceability .list .item .desc .sub_title {
        margin-top: 8px;
        height: 27px;
        line-height: 27px;
        font-size: 20px;
        font-weight: bold;
        color: #fecb00;
    }

    .advantage {
        width: 100%;
        padding-top: 25px;
        background: url("../image/advantage-bg.png") no-repeat;
        background-position: left bottom;
    }

    .advantage .header {
        text-align: center;
    }

    .advantage .header .title {
        height: 20px;
        line-height: 20px;
        font-size: 20px;
        font-weight: 500;
        color: #333333;
    }

    .advantage .header .sub_title {
        margin-top: 5px;
        height: 12px;
        font-size: 12px;
        line-height: 12px;
        color: #999999;
    }

    .advantage .list {
        padding-left: 5px;
        padding-right: 5px;
        margin-top: 20px;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .advantage .list .item {
        text-align: center;
        margin-bottom:10px;
        width: 25%;
        transition: all 0.3s linear;
    }

    .advantage .list .item:hover {
        transform: translateY(-5px);
        transition: all 0.3s linear;
    }

    .advantage .list .item .image img {
        width:40px;
        height:40px!important;
        transition: all 0.6s;
        -moz-transition: width 0.6s; /* Firefox 4 */
        -webkit-transition: width 0.6s; /* Safari 和 Chrome */
        -o-transition: width 0.6s; /* Opera */
    }


    .advantage .list .item .title {
        margin-top: 10px;
        height:20px;
        line-height:20px;
        font-size:15px;
        color: #333333;
    }

    .reason {
        width: 100%;
        height: auto;
        padding:30PX 0;
        background: #f8fbfb;
    }

    .reason .bg {
        width: 100%;
        margin: 0 auto;
        text-align: center;
    }

    .reason .bg .header {
        padding: 0;
    }

    .reason .bg .header .title {
        height: 20px;
        font-size: 20px;
        font-weight: 500;
        color: #333333;
        line-height: 20px;
    }

    .reason .bg .header .sub_title {
        margin-top: 5px;
        height: 12px;
        font-size: 12px;
        color: #999999;
        line-height: 12px;
    }

    .reason .marquee {
        height: 408px;
        margin: 0 auto;
        padding: 0 10px;
        overflow: hidden;
        background-color: #f8fbfb;
            width: 375px;
    margin-left: -5px;
    }

    .reason .marquee .box {
        position: relative;
        width: 1110px;
        height: 100%;
        margin-left: 0px;
        margin-right: 0px;
        overflow: hidden;
    }
.scroll_horizontal .next{right:2px;}
.scroll_horizontal .prev{left:10px;}
    .reason .marquee .item-wrap {
        float: left;
       width: 375px;
        height:368px;
        margin:15px 0;
        position:relative;
        transition: all 0.3s linear;
    }
.reason .marquee .item-wrap:before{
    content:"";
    width:100%;
    height:55%;
    position:absolute;
    left:0;
    bottom:0;
    z-index:11;
}
    .reason .marquee .item-wrap .item {
        position: relative;
        display: block;
        width: 375px;
        height: 100%;
        background: #ffffff;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .item .image {
        width: 100%;
        height:295px;
        transition: all 0.3s linear;
    }
   .reason .marquee .item-wrap .item .title{
       margin-top:25px;
   }
    .reason .marquee .item-wrap .item .image img {
        width: 86%;
        transition: all 0.3s linear;
    }




    .reason .marquee .item-wrap .itemDesc {
      position:absolute;
      left:0;
      top:0;
      display:none;
      flex-direction:column;
      width:375px;height:100%;
      align-items:center;
      justify-content: flex-end;
      padding-bottom:25px;
        box-shadow: none;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover {
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .item {
        display: none;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .itemDesc {
        display: none;
        box-shadow: none;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .itemDesc {
        display: block;
        z-index: 100;
        background: #ECF1F1;
        width: 370px;
        height:368px;
        padding-top: 81px;
        opacity: 0.89;
        border-radius: 4px;
        text-align: center;
        transition: all 0.3s linear;
    }


    .reason .marquee .item-wrap:hover .itemDesc .title {
        line-height: 27px;
        font-size: 22px;
        color: #3F78FB;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .itemDesc .line {
        margin-top: 16px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .txt {
        margin-top: 35px;
        font-size: 16px;
        color: #666666;
        line-height: 26px;
        transition: all 0.3s linear;
    }
.reason .marquee .item-wrap .itemDesc .txt{
    font-size:14px;
    color:#999;
}

    .statistics {
        width: 100%;
        padding-top: 104px;
        padding-bottom: 88px;
    }

    .statistics img {
        display: block;
        margin: 0 auto;
        width: 1422px;
        height: 320px;
    }
}

@media (min-width: 768px) {

    /* Carousel base class */
    .carousel {
        /*height: 808px;*/
        height: calc(100vh - 80px);
        margin-bottom: 60px;
    }

    .carousel-caption {
        position: absolute;
        top: 20%;
        left: 15%;
        text-align: left;
        z-index: 10; /* Since positioning the image, we need to help out the caption */
    }

    /* Declare heights because of positioning of img element */
    .carousel .item {
        height: calc(100vh - 80px);
        background-color: #ffffff;
    }

    .carousel > .carousel-inner > .item > img {
        position: absolute;
        top: 0;
        left: 0;
        min-width: 100%;
        height: 100%;
        object-fit: fill;
        overflow-x: hidden;
    }

    .carousel .carousel-indicators li {
        background-color: rgba(0, 0, 0, 0.5);
    }

    .carousel .carousel-indicators .active {
        background-color: rgba(135, 206, 235, 1);
    }

    .marketing .container, .serviceability .container, .youshi1 .container {
        padding-left: 6% !important;
        padding-right: 6% !important
    }

    .carousel-control {
        /* height: 808px; */
    }

    .carousel > .carousel-inner > .item {
        background-repeat: no-repeat;
        background-position: center center;
        background-size: cover;
        cursor: pointer;
    }

    .carousel > .carousel-inner > .item > img {
        opacity: 0;
        z-index: -1
    }

    .carousel-caption h1 {
        font-size: 52px;
        font-weight: bold;
        color: #333333;
        line-height: 50px;
    }

    .carousel-caption ul {
        margin-top: 82px;
        padding-left: 20px;
    }

    .carousel-caption ul li {
        font-size: 20px;
        font-weight: 400;
        color: #333333;
        line-height: 40px;
    }

    .carousel-caption a:focus {
        outline: none;
    }

    .carousel-caption .btn {
        margin-top: 52px;
        margin-left: 12px;
        padding: 0px;
        width: 132px;
        height: 60px;
        line-height: 60px;
        background: #3f78fb;
        border-radius: 30px;
        font-size: 20px;
        color: #fafafa;

    }

    .carousel-control.left,
    .carousel-control.right {
        background: rgba(248, 248, 248, 0);
    }

    .marketing .container {
        margin-top: 65px;


    }

    .marketing .header {
        text-align: center;
    }

    .marketing .header .title {
        height: 44px;
        line-height: 44px;
        font-size: 46px;
        font-weight: 500;
        color: #333333;
    }

    .marketing .header .sub_title {
        margin-top: 23px;
        height: 17px;
        font-size: 18px;
        font-family: Arial;
        font-weight: 400;
        color: #666666;
    }

    .marketing .list {
        width: 100%;
        padding-top: 37px;
        padding-bottom: 78px;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
    }

    .marketing .list .item {
        width: 33%;
        text-align: center;
        transition: all 0.3s linear;
    }

    .marketing .list .item:hover {
        transform: translateY(-5px);
        transition: all 0.3s linear;
    }

    .marketing .list .item a:hover {
        text-decoration: none;
    }

    .marketing .list .item:hover .title {
        color: #6C4486;
    }

    .marketing .list .item:hover .desc {
        color: #6C4486;
    }

    .marketing .list .item .image img {
        /*width: 334px;*/
        /*height: 284px;*/
        text-align: center;
        vertical-align: middle;
    }

    .marketing .list .item .title {
        text-align: center;
        margin-top: 68px;
        height: 28px;
        font-size: 38px;
        color: #333333;
        line-height: 28px;
    }

    .marketing .list .item .desc {
        text-align: center;
        margin-top: 29px;
        height: 16px;
        font-size: 16px;
        font-weight: 400;
        color: #333333;
        line-height: 16px;
    }

    .serviceability {
        width: 100%;
        background: #3f78fb;
        padding-top: 63px;
        padding-bottom: 78px;
    }

    .serviceability .header {
        text-align: center;
    }

    .serviceability .header .title {
        height: 43px;
        font-size: 46px;
        font-weight: 500;
        color: #ffffff;
        line-height: 46px;
    }

    .serviceability .header .sub_title {
        margin-top: 24px;
        height: 17px;
        font-size: 18px;
        color: #ffffff;
        line-height: 17px;
    }

    .serviceability .list {
        display: flex;
        flex-wrap: wrap;
        padding-top: 6px;
        padding-left: 5%;
        padding-right: 5%;
    }

    .serviceability .item {
        margin-top: 66px;
        width: 25%;
        display: flex;
        flex-direction: row;
    }

    .serviceability .list .item .icon {
        width: 54px;
        height: 54px;
        float: left;
    }

    .serviceability .list .item .desc {
        margin-left: 7px;
        width: calc(100% - 54px);
        height: 54px;
    }

    .serviceability .list .item .desc .title {
        height: 15px;
        line-height: 15px;
        font-size: 14px;
        color: #ffffff;
    }

    .serviceability .list .item .desc .sub_title {
        margin-top: 13px;
        height: 27px;
        line-height: 27px;
        font-size: 36px;
        font-weight: bold;
        color: #fecb00;
    }

    .advantage {
        width: 100%;
        margin-top: 81px;
        background: url("../image/advantage-bg.png") no-repeat;
        background-position: left bottom;
    }

    .advantage .header {
        text-align: center;
    }

    .advantage .header .title {
        height: 44px;
        line-height: 44px;
        font-size: 46px;
        font-weight: 500;
        color: #333333;
    }

    .advantage .header .sub_title {
        margin-top: 24px;
        height: 17px;
        font-size: 18px;
        line-height: 17px;
        color: #999999;
    }

    .advantage .list {
        /*padding-left: 8%;*/
        /*padding-right:8%;*/
        margin-top: 123px;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .advantage .list .item {
        text-align: center;
        margin-bottom: 100px;
        width: 25%;
        transition: all 0.3s linear;
    }

    .advantage .list .item:hover {
        transform: translateY(-5px);
        transition: all 0.3s linear;
    }

    .advantage .list .item .image img {
        width: 60px;
        height: 60px;
        transition: all 0.6s;
        -moz-transition: width 0.6s; /* Firefox 4 */
        -webkit-transition: width 0.6s; /* Safari 和 Chrome */
        -o-transition: width 0.6s; /* Opera */
    }

    .advantage .list .item:hover .image img {
        transform: scale(1.1);
        -ms-transform: scale(1.1); /* IE 9 */
        -moz-transform: scale(1.1); /* Firefox */
        -webkit-transform: scale(1.1); /* Safari 和 Chrome */
        -o-transform: scale(1.1); /* Opera */
    }

    .advantage .list .item .title {
        margin-top: 55px;
        height: 23px;
        line-height: 23px;
        font-size: 24px;
        color: #333333;
    }

    .reason {
        width: 100%;
        height: 731px;
        position: relative;
    }

    .reason .bg {
        width: 105%;
        height: 100%;
        background: #f8fbfb;
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        z-index: 60;
    }

    .reason .bg .header {
        position: absolute;
        top: 120px;
        left: 361px;
        padding: 0;
    }

    .reason .bg .header .title {
        width: 190px;
        height: 103px;
        font-size: 46px;
        font-weight: 500;
        color: #333333;
        line-height: 60px;
    }

    .reason .bg .header .sub_title {
        margin-top: 39px;
        width: 187px;
        font-size: 18px;
        font-weight: 400;
        color: #999999;
        line-height: 30px;
    }

    .reason .marquee {
        position: absolute;
        top: 231px;
        left: 632px;
        z-index: 70;
        width: 1176px;
        height: 408px;
        margin: 0 auto;
        padding: 0 10px;
        overflow: hidden;
        background-color: #f8fbfb;
    }

    .reason .marquee .box {
        position: relative;
        width: 1110px;
        height: 408px;
        margin-left: 0px;
        margin-right: 0px;
        overflow: hidden;
    }

    .reason .marquee .item-wrap {
        float: left;
        width: 370px;
        height: 408px;
        padding-top: 20px;
        padding-bottom: 40px;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .item {
        position: relative;
        margin-top: 20px;
        display: block;
        width: 350px;
        height: 328px;
        background: #ffffff;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .item .image {
        width: 100%;
        height: 285px;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .item .image img {
        width: 100%;
        height: 285px;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .item .title {
        position: absolute;
        bottom: 25px;
        width: 100%;
        text-align: center;
        font-size: 24px;
        color: #333333;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover {
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .item {
        display: none;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap .itemDesc {
        display: none;
        box-shadow: none;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .itemDesc {
        display: block;
        z-index: 100;
        background: #ECF1F1;
        width: 350px;
        height: 408px;
        padding-top: 81px;
        box-shadow: 10px 8px 14px 0px rgba(212, 218, 218, 0.64);
        opacity: 0.89;
        border-radius: 4px;
        text-align: center;
        transition: all 0.3s linear;
    }


    .reason .marquee .item-wrap:hover .itemDesc .title {
        line-height: 27px;
        font-size: 28px;
        color: #3F78FB;
        transition: all 0.3s linear;
    }

    .reason .marquee .item-wrap:hover .itemDesc .line {
        margin-top: 22px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .txt {
        margin-top: 56px;
        font-size: 16px;
        color: #666666;
        line-height: 26px;
        transition: all 0.3s linear;
    }

    .statistics {
        width: 100%;
        padding-top: 104px;
        padding-bottom: 88px;
    }

    .statistics img {
        display: block;
        margin: 0 auto;
        width: 1422px;
        height: 320px;
    }

    .bottom_carousel img {
        width: 100%
    }
}

@media (min-width: 768px) and (max-width: 1800px) {
    .reason .container {
        position: relative;
    }

    .reason .bg .header {
        left: 60px
    }

    .reason .marquee {
        right: 0;
        left: initial
    }
}

@media (min-width: 1200px) {
    .carousel-caption {
        left: 14%;
    }

    .carousel-caption ul li {
        font-size: 14px;
    }

    .marketing .header .title, .serviceability .header .title, .advantage .header .title, .reason .bg .header .title {
        font-size: 31px
    }

    .marketing .list .item .title {
        font-size: 25px
    }

    .marketing .list .item .desc {
        font-size: 12px
    }

    .serviceability .list .item .desc .sub_title {
        font-size: 24px
    }

    .advantage .list .item .title, .reason .marquee .item-wrap .item .title {
        font-size: 16px
    }

    .reason {
        height: 650px;
    }

    .reason .bg .header .sub_title {
        font-size: 18px
    }

    .reason .bg .header .title {
        width: 130px;
    }

    .reason .marquee {
        width: 850px;
        height: 320px;
    }

    .reason .marquee .next{
        right: 0px;
    }

    .reason .marquee .prev{
        left: 0px;
    }

    .reason .marquee .box {
        width: 750px;
        margin-left: 45px;
    }

    .reason .marquee .item-wrap {
        width: 253px;
        height: 380px;
    }

    .reason .marquee .item-wrap:hover .itemDesc {
        width: 233px;
        height: 280px;
        padding-top: 40px;
    }

    .reason .marquee .item-wrap .item {
        width: 233px;
        height: 230px;
    }

    .reason .marquee .item-wrap .item .image img {
        height: 190px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .title {
        font-size: 19px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .txt {
        font-size: 12px;
        line-height: 20px;
        margin-top: 37px;
    }
}

@media (min-width: 1600px) {
    .carousel-caption ul li {
        font-size: 17px;
    }

    .marketing .header .title, .serviceability .header .title, .advantage .header .title, .reason .bg .header .title {
        font-size: 38px
    }

    .marketing .list .item .title {
        font-size: 32px
    }

    .marketing .list .item .desc {
        font-size: 13px
    }

    .serviceability .list .item .desc .sub_title {
        font-size: 30px
    }

    .advantage .list .item .title, .reason .marquee .item-wrap .item .title {
        font-size: 20px
    }

    .reason {
        height: 710px;
    }

    .reason .container{
        width: 1480px;
    }

    .reason .bg .header .sub_title {
        font-size: 18px
    }

    .reason .bg .header .title {
        width: 160px;
    }

    .reason .marquee {
        width: 1050px;
        height: 350px;
    }

    .reason .marquee .next{
        right: 0px;
    }

    .reason .marquee .prev{
        left: 0px;
    }

    .reason .marquee .box {
        width: 936px;
        margin-left: 57px;
    }

    .reason .marquee .item-wrap {
        width: 312px;
        height: 380px;
    }

    .reason .marquee .item-wrap .item {
        width: 292px;
        height: 270px;
    }

    .reason .marquee .item-wrap:hover .itemDesc {
        width: 292px;
        height: 310px;
        padding-top: 40px;
    }

    .reason .marquee .item-wrap .item .image img {
        height: 238px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .title {
        font-size: 22px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .txt {
        font-size: 14px;
        line-height: 22px;
        margin-top: 40px;
    }

}

@media (min-width: 1900px) {
    .carousel-caption ul li {
        font-size: 20px;
    }

    .marketing .header .title, .serviceability .header .title, .advantage .header .title, .reason .bg .header .title {
        font-size: 46px
    }

    .marketing .list .item .title {
        font-size: 38px
    }

    .marketing .list .item .desc {
        font-size: 16px
    }

    .serviceability .list .item .desc .sub_title {
        font-size: 36px
    }

    .advantage .list .item .title, .reason .marquee .item-wrap .item .title {
        font-size: 24px
    }

    .reason {
        height: 731px;
    }

    .reason .container{
        width: 1561px;
    }

    .reason .bg .header .sub_title {
        font-size: 18px
    }

    .reason .bg .header .title {
        width: 190px;
    }

    .reason .marquee {
        width: 1220px;
        height: 450px;
    }

    .reason .marquee .next{
        right: 0px;
    }

    .reason .marquee .prev{
        left: 0px;
    }

    .reason .marquee .box {
        width: 1110px;
        height: 450px;
        margin-left: 45px;
    }

    .reason .marquee .item-wrap {
        width: 370px;
        height: 450px;
    }


    .reason .marquee .item-wrap .item {
        width: 350px;
        height: 328px;
    }

    .reason .marquee .item-wrap .item .image {
        width: 100%;
        height: 285px;
    }

    .reason .marquee .item-wrap .item .image img {
        height: 285px;
    }

    .reason .marquee .item-wrap:hover .itemDesc {
        width: 350px;
        height: 408px;
        padding-top: 81px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .title {
        font-size: 28px;
    }

    .reason .marquee .item-wrap:hover .itemDesc .txt {
        font-size: 16px;
        line-height: 26px;
        margin-top: 56px;
    }
}