body {
        height: auto;
        width: 100%;
        min-width: 1200px;
        /* background-color: #f5f7fa; */
        background-color: #fff;
    }
    .gray-background{
        padding: 25px 0px 15px;
        background-color: #f1f0ee;
    }
    .banner {
        position: relative;
        margin-top: 61px;
    }

    .banner-box img {
        width: 100%;
        height: 100%;
    }

    .w1200 {
        width: 1200px;
        margin: 0px auto;
    }

    .w975 {
        width: 975px;
        margin: 0px auto;
    }

    .w600 {
        width: 600px;
        margin: 0px auto;
    }

    /* banner样式 start */
    .layui-carousel[lay-arrow=always] .layui-carousel-arrow {
        left: 300px;
    }

    .layui-carousel[lay-arrow=always] .layui-carousel-arrow[lay-type=add] {
        right: 300px;
    }

    /* banner样式 end */

    /* 公共课程样式 start */
    .public {
        /* background-color: #f6f6f6; */
        padding: 30px 0px;
    }

    .publicTitle {
        height: 110px;
        /* background-color: aquamarine; */
        position: relative;
    }



    .course-name {
        font-size: 25px;
        padding: 35px 50px 40px 50px;
        font-weight: 700;
        float: left;
        font-size: 20px;

    }

    .course-name-label {
        font-size: 12px;
        padding: 43px 10px 40px 10px;
        float: left;
    }

    /* banner悬浮搜索 start */
    .screen {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 280px;
        /* height: 506px; */
        height: 430px;
        /* background-color: #fff; */
        background-color: rgba(28, 31, 33, 0.5);
        /* 白色，透明度50% */
        padding: 10px 0px 15px 0px;
        box-sizing: border-box;
    }

    .screen .screen-box {

        /* line-height: 50px; */
        cursor: pointer;
        position: relative;
        color: #fff;
        padding: 15px 14px;
        /* border-top-left-radius: 4px; */
        /* border-bottom-left-radius: 4px; */
        /* height: 82px; */
        height: 75px;
        transition: all .1s;
        font-size: 14px;
        padding: 8px 20px 0px 20px;
        font-weight: 700;
    }

    .screen .screen-title {
        font-size: 18px;
        padding-bottom: 15px;
    }

    .screen .screen-box:hover {
        background-color: rgba(255, 255, 255, 0.5);

    }

    /* &:hover .screenConter {
        display: block;
    } */

    .screen .screen-box:hover .screenConter {
        display: block;
    }


    .screen-name {
        /* float: left; */
        font-size: 14px;
        display: inline-block;
        margin-left: 10px;
        font-weight: 100;
        margin-bottom: 13px;
    }

    .screen-ico {
        position: absolute;
        top: 14px;
        right: 15px;
        display: inline-block;
        width: 10px;
        height: 10px;
    }

    .screen-ico img {
        width: 100%;
    }

    /* banner悬浮搜索 end */

    /* banner悬浮右侧内容 start */
    .screenConter {
        /* position: absolute; */
        position: fixed;
        top: 86px;
        /* left: 280px; */
        left: 440px;
        width: 810px;
        /* height: 506px; */
        height: 430px;
        background: #fff;
        box-shadow: 0 4px 8px 0 rgba(7, 17, 27, .1);
        border-radius: 0 12px 12px 0;
        z-index: 2;
        box-sizing: border-box;
        display: none;
        /* display: block; */
    }


    .screen-conterOn {
        /* height: 190px; */
        /* height: 240px; */
        height: 170px;
        /* padding: 28px 36px 0; */
        padding: 10px 36px 0;
        box-sizing: border-box;
    }

    .screen-conterOn .type {
        margin-bottom: 10px;
        font-size: 18px;
        color: #1c1f21;
        line-height: 22px;
        font-weight: 700;
    }

    .title {
        /* height: 20px; */
        margin-bottom: 15px;
    }

    .screen-conterOn .orientation {
        line-height: 14px;
        padding: 4px;
        border-radius: 6px;
        margin: 0 8px 8px 0;
        font-size: 15px;
        font-weight: 200;
        cursor: pointer;
        display: inline-block;
        color: #191818;
    }

    .screen-conterDwon {
        padding: 25px 36px;
        /* height: 316px; */
        height: 240px;
        background-color: #f3f5f6;
        box-sizing: border-box;
        overflow: hidden;
        border-radius: 0px 0px 10px 0px;
    }

    /* banner悬浮右侧内容 end */

    /* 资讯更多 */
    .questionsMore {
        position: absolute;
        left: 580px;
        top: 45px;
        cursor: pointer;
        color: #191818;
    }

    /* 公共更多 */
    .publicMore {
        position: absolute;
        right: 60px;
        top: 45px;
        cursor: pointer;
        color: #191818;
    }



    /* 公共课程 start */
    .publicCourses {
        position: relative;
    }

    .courseModule {
        width: 216px;
        height: 190px;
        /* background-color: #ff5722; */
        border-radius: 12px;
        margin: 0px 26px 24px 0px;
        display: inline-block;
        border: 1px solid #ddd;
        border-radius: 12px;
    }

    .courseModule:nth-child(5n+5) {
        margin-right: 0px;
    }

    .courseImages .mask {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 216px;
        height: 125px;
        background: rgba(0, 0, 0, .3);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        display: none;
    }

    .courseImages .mask img {
        border-radius: var(--td-radius-default) var(--td-radius-default) 0 0;
        display: flow-root;
        max-height: 100%;
        width: 100%;
        position: absolute;
        left: 42%;
        top: 35%;
    }

    .courseModule:hover .courseImages .mask {
        display: block;
    }

    .courseModule:hover .notification {
        /* display: block; */
    }

    .courseTitle {
        padding: 6px 4px 6px;
        color: #191818;
    }

    .courseTitle .course-title {
        height: 24px;
        line-height: 24px;
        font-size: 14px;
        font-weight: 500;
        word-break: break-all;
        margin-top: 0px;
        text-overflow: -o-ellipsis-lastline;
        /* 溢出内容隐藏 */
        overflow: hidden;
        /* 文本溢出部分用省略号表示	*/
        text-overflow: ellipsis;
        /* 特别显示模式	*/
        display: -webkit-box;
        /* 行数	=*/
        -webkit-line-clamp: 1;

        /* 盒子中内容竖直排列 */
        -webkit-box-orient: vertical;


    }

    .courseTitle .schoolBegins {
        padding: 8px 12px 16px;
        color: #191818;
    }

    .courseImages {
        width: 216px;
        height: 125px;
        overflow: hidden;
        position: relative;
        border-radius: 12px 12px 0px 0px;
    }

    .courseImages .free {
        position: absolute;
        top: 10px;
        width: 40px;
        height: 20px;
        background-color: #ff5722;
        color: #fff;
        z-index: 1;
        border-radius: 0px 10px 10px 0px;
        padding-left: 10px;

    }


    .courseImages img {
        width: 216px;
        height: 125px;
        text-align: center;
        /* width: 100%; */
    }

    .coursePrice .schoolBegins {
        display: inline-block;
        width: 120px;
        padding: 5px;
        color: #191818;
        font-size: 12px;
    }

    .coursePrice .price {
        padding-left: 15px;
        color: rgb(255, 87, 34);
    }

    .coursePrice .free {
        color: #191818;
        padding-left: 43px;
    }

    /* 公共课程样式 end */
    /* 付费推荐1课程样式 start */
    .poneModule {
        width: 580px;
        height: 370px;
        /* background-color: #ff5722; */
        border-radius: 12px;
        margin: 0px 30px 25px 0px;
        display: inline-block;
        border: 1px solid #ddd;
        border-radius: 12px;
    }

    .poneModule:nth-child(2n+2) {
        margin-right: 0px;
    }

    .poneImages .mask {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 580px;
        height: 300px;
        background: rgba(0, 0, 0, .3);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        display: none;
    }

    .poneImages .mask img {
        border-radius: var(--td-radius-default) var(--td-radius-default) 0 0;
        display: flow-root;
        max-height: 100%;
        width: 100%;
        position: absolute;
        left: 42%;
        top: 35%;
    }

    .poneModule:hover .poneImages .mask {
        display: block;
    }

    .poneModule:hover .notification {
        /* display: block; */
    }

    .poneTitle {
        padding: 6px 4px 6px;
        color: #191818;
    }

    .poneTitle .course-title {
        height: 20px;
        line-height: 20px;
        font-size: 20px;
        font-weight: 500;
        word-break: break-all;
        margin-top: 0px;
        text-overflow: -o-ellipsis-lastline;
        /* 溢出内容隐藏 */
        overflow: hidden;
        /* 文本溢出部分用省略号表示	*/
        text-overflow: ellipsis;
        /* 特别显示模式	*/
        display: -webkit-box;
        /* 行数	=*/
        -webkit-line-clamp: 1;

        /* 盒子中内容竖直排列 */
        -webkit-box-orient: vertical;


    }

    .poneTitle .schoolBegins {
        padding: 8px 12px 16px;
        color: #191818;
    }

    .poneImages {
        width: 580px;
        height: 300px;
        overflow: hidden;
        position: relative;
        border-radius: 12px 12px 0px 0px;
    }

    .poneImages .free {
        position: absolute;
        top: 10px;
        width: 40px;
        height: 20px;
        background-color: #ff5722;
        color: #fff;
        z-index: 1;
        border-radius: 0px 10px 10px 0px;
        padding-left: 10px;

    }


    .poneImages img {
        width: 580px;
        height: 300px;
        text-align: center;
        /* width: 100%; */
    }

    .ponePrice .schoolBegins {
        display: inline-block;
        width: 120px;
        padding: 5px;
        color: #191818;
        font-size: 16px;
    }

    .ponePrice .price {
        float: right;
        padding-top: 10px;
        padding-right: 5px;
        color: rgb(255, 87, 34);
        font-size: 18px;
    }

    .ponePrice .free {
        color: #191818;
        padding-left: 43px;
    }

    /* 付费推荐1课程样式 end */
    /* 付费推荐2课程样式 start */
    .ptwoModule {
        width: 380px;
        height: 265px;
        /* background-color: #ff5722; */
        border-radius: 12px;
        margin: 0px 15px 25px 0px;
        display: inline-block;
        border: 1px solid #ddd;
        border-radius: 12px;
    }

    .ptwoModule:last-child {
        margin-right: 0px;
    }

    .ptwoImages .mask {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 380px;
        height: 270px;
        background: rgba(0, 0, 0, .3);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        display: none;
    }

    .ptwoImages .mask img {
        border-radius: var(--td-radius-default) var(--td-radius-default) 0 0;
        display: flow-root;
        max-height: 100%;
        width: 100%;
        position: absolute;
        left: 42%;
        top: 35%;
    }

    .ptwoModule:hover .ptwoImages .mask {
        display: block;
    }

    .ptwoModule:hover .notification {
        /* display: block; */
    }

    .ptwoTitle {
        padding: 6px 4px 6px;
        color: #191818;
    }

    .ptwoTitle .course-title {
        height: 18px;
        line-height: 18px;
        font-size: 18px;
        font-weight: 500;
        word-break: break-all;
        margin-top: 0px;
        text-overflow: -o-ellipsis-lastline;
        /* 溢出内容隐藏 */
        overflow: hidden;
        /* 文本溢出部分用省略号表示	*/
        text-overflow: ellipsis;
        /* 特别显示模式	*/
        display: -webkit-box;
        /* 行数	=*/
        -webkit-line-clamp: 1;

        /* 盒子中内容竖直排列 */
        -webkit-box-orient: vertical;


    }

    .ptwoTitle .schoolBegins {
        padding: 8px 12px 16px;
        color: #191818;
    }

    .ptwoImages {
        width: 380px;
        height: 200px;
        overflow: hidden;
        position: relative;
        border-radius: 12px 12px 0px 0px;
    }

    .ptwoImages .free {
        position: absolute;
        top: 10px;
        width: 40px;
        height: 20px;
        background-color: #ff5722;
        color: #fff;
        z-index: 1;
        border-radius: 0px 10px 10px 0px;
        padding-left: 10px;

    }


    .ptwoImages img {
        width: 380px;
        height: 200px;
        text-align: center;
        /* width: 100%; */
    }

    .ptwoPrice .schoolBegins {
        display: inline-block;
        width: 120px;
        padding: 5px;
        color: #191818;
        font-size: 18px;
    }

    .ptwoPrice .price {
        float: right;
        padding-top: 10px;
        padding-right: 5px;
        color: rgb(255, 87, 34);
        font-size: 16px;
    }

    .ptwoPrice .free {
        color: #191818;
        padding-left: 43px;
    }

    /* 付费推荐2课程样式 end */
    /* 付费推荐3课程样式 start */
    .pthreeModule {
        width: 270px;
        height: 215px;
        /* background-color: #ff5722; */
        border-radius: 12px;
        margin: 0px 35px 25px 0px;
        display: inline-block;
        border: 1px solid #ddd;
        border-radius: 12px;
    }

    .pthreeModule:last-child {
        margin-right: 0px;
    }

    .pthreeImages .mask {
        position: absolute;
        left: 0px;
        top: 0px;
        width: 270px;
        height: 245px;
        background: rgba(0, 0, 0, .3);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        display: none;
    }

    .pthreeImages .mask img {
        border-radius: var(--td-radius-default) var(--td-radius-default) 0 0;
        display: flow-root;
        max-height: 100%;
        width: 100%;
        position: absolute;
        left: 42%;
        top: 35%;
    }

    .pthreeModule:hover .ptwoImages .mask {
        display: block;
    }

    .pthreeModule:hover .notification {
        /* display: block; */
    }

    .pthreeTitle {
        padding: 6px 4px 6px;
        color: #191818;
    }

    .pthreeTitle .course-title {
        height: 18px;
        line-height: 18px;
        font-size: 16px;
        font-weight: 500;
        word-break: break-all;
        margin-top: 0px;
        text-overflow: -o-ellipsis-lastline;
        /* 溢出内容隐藏 */
        overflow: hidden;
        /* 文本溢出部分用省略号表示	*/
        text-overflow: ellipsis;
        /* 特别显示模式	*/
        display: -webkit-box;
        /* 行数	=*/
        -webkit-line-clamp: 1;

        /* 盒子中内容竖直排列 */
        -webkit-box-orient: vertical;


    }

    .pthreeTitle .schoolBegins {
        padding: 8px 12px 16px;
        color: #191818;
    }

    .pthreeImages {
        width: 270px;
        height: 150px;
        overflow: hidden;
        position: relative;
        border-radius: 12px 12px 0px 0px;
    }

    .pthreeImages .free {
        position: absolute;
        top: 10px;
        width: 40px;
        height: 20px;
        background-color: #ff5722;
        color: #fff;
        z-index: 1;
        border-radius: 0px 10px 10px 0px;
        padding-left: 10px;

    }


    .pthreeImages img {
        width: 270px;
        height: 150px;
        text-align: center;
        /* width: 100%; */
    }

    .pthreePrice .schoolBegins {
        display: inline-block;
        width: 120px;
        padding: 5px;
        color: #191818;
        font-size: 14px;
    }

    .pthreePrice .price {
        float: right;
        padding-top: 10px;
        padding-right: 5px;
        color: rgb(255, 87, 34);
        font-size: 12px;
    }

    .pthreePrice .free {
        color: #191818;
        padding-left: 43px;
    }

    /* 付费推荐3课程样式 end */
    /* 免费推荐1课程样式 start*/
    /* 免费推荐1课程样式  end*/
    /* 免费推荐2课程样式 start*/
    /* 免费推荐2课程样式  end*/

    /* 公共弹窗样式 start */
    /* .notification {
        padding: 10px;
      
        position: relative;
        top: -277px;
        left: 300px;
        width: 200px;
        height: 270px;
        background-color: #fff;
        
        z-index: 9;
        border-radius: 5px;
       
    } */

    /* .notification-title {
        font-size: 18px;
    } */

    /* .notification-typeTitle {
        display: inline-block;
        padding: 5px 5px;
        background-color: #edeff2;
        color: #667280;
        margin: 0px 15px 8px 0px;
        font-size: 10px;
        border-radius: 4px;
    } */

    .obtain {
        font-size: 15px;
    }

    .triangle {
        position: relative;
        top: -525px;
        left: 293px;
        width: 0;
        height: 0;
        border-right: 8px solid #fff;
        border-top: 8px solid transparent;
        border-bottom: 8px solid transparent;
        z-index: 99;

    }


    /* 公共弹窗样式 end */


    /* 公共课程 end */


    /* 公共课程样式  end*/

    /* 学院课样式 start */
    .course {
        padding: 60px 0px 120px 0px;
        /* background-color: #f6f6f6; */
        background-position: initial;
        background-size: cover;
        background-repeat: no-repeat;
        background-image: url(../picture/collegebackground.jpg);
    }



    .collegeModule {
        width: 184px;
        height: 145px;
        overflow: hidden;
        display: inline-block;
        margin: 0px 20px 16px 0px;
        position: relative;
        border-radius: 5px;
        opacity: 0.7;
        border: 1px solid #ddd;
        cursor: pointer;
    }

    .collegeModule:nth-child(3n+3) {
        margin-right: 0px;
    }

    .collegeModule img {
        height: 100%;
        position: relative;
    }

    .collegeModule-under {
        position: absolute;
        bottom: 0px;
        left: 0px;
        width: 155px;
        height: 15px;
        /* background-color: rgba(0, 0, 0, 0.6); */
        padding: 15px;
        text-align: center;
    }

    .collegeModule-undername {
        color: #000;
        font-size: 16px;
    }

    .screen-scourse {
        width: 329px;
        float: left;
        display: flex;
        margin-bottom: 25px;
    }

    .screen-scourse-img {
        width: 80px;
        height: 50px;
        margin-right: 11px;
        border-radius: 4px;
        background-position: center;
        image-rendering: -webkit-optimize-contrast;
        -ms-interpolation-mode: nearest-neighbor;
        box-shadow: 0 6px 10px 0 rgba(95, 101, 105, .1);
        overflow: hidden;
        line-height: 50px;
        /* display: table; */
        float: left;
    }

    .screen-scourse-img img {
        width: 100%;
        vertical-align: middle;
        display: inline-block;
    }

    .screen-scourse-right {
        width: 228px;
        height: 50px;
        float: right;
    }

    .screen-scourse-title {
        display: block;
        width: 210px;
        overflow: hidden;
        text-overflow: -o-ellipsis-lastline;
        /* 溢出内容隐藏 */
        overflow: hidden;
        /* 文本溢出部分用省略号表示	*/
        text-overflow: ellipsis;
        /* 特别显示模式	*/
        display: -webkit-box;
        /* 行数	=*/
        -webkit-line-clamp: 1;
        /* 盒子中内容竖直排列 */
        -webkit-box-orient: vertical;
        font-size: 12px;
        margin-bottom: 10px;
        /* display: flex; */
        align-items: center;
        /* height: 20px; */
        color: #191818;
    }

    .screen-scourse-price {
        font-weight: 700;
        color: #f01414;
    }

    .screen-scourse-free {
        color: #9199a1;
        line-height: 18px;
        font-weight: 200;
        font-size: 12px;
    }

    /* 公共课程 start */





    .xinli {
        width: 184px;
        height: 145px;
        padding-top: 25px;
        background-color: #fff;
    }


    .collegeModule-picture {
        width: 60px;
        height: 60px;
        margin: 0px 62px;
    }

    .collegeModule-picture img {
        width: 100%;

    }

    .collegeModule-name {
        font-size: 30px;
        color: #fff;
        font-weight: 800;
        text-align: center;
        padding-top: 120px;
    }


    /* 学院课样式 end */

    /* 认证模块 start */
    .authentication {

        /* background-color: #f6f6f6; */
        padding: 40px 0px 40px 0px;
        background-position: initial;
        background-size: cover;
        background-repeat: no-repeat;
        background-image: url(../picture/certificationbackground.jpg);
        height: 100%;
    }

    .authentication-model {
        width: 300px;
        height: 255px;
        /* background-color: aliceblue; */
        margin-right: 20px;
        margin-bottom: 30px;
        display: inline-block;
        cursor: pointer;
        margin-left: 10px;
        overflow: hidden;
        border-radius: 12px;
    }



    .authentication-model:nth-child(3n+3) {
        margin-right: 0px;
    }

    .authentication-model img {
        width: 300px;
        height: 255px;
    }

    .authentication-model img {
        cursor: pointer;
        transition: all 0.5s;
        /* 所有的属性变化在0.5s的时间段内完成 */
    }

    .authentication-model img:hover {
        transform: scale(1.3);
        /* 鼠标放到图片上的时候图片按比例放大1.5倍   */
    }

    .collegeModule-name {
        font-size: 30px;
        color: #fff;
        font-weight: 800;
        text-align: center;
        padding-top: 120px;
    }

    /* 认证模块 end */
    /* 新认证模块课程 start */
    .major{
        padding: 40px 0px 40px 0px;
        background-position: initial;
        background-size: cover;
        background-repeat: no-repeat;
        /* background-image: url(../picture/certificationbackground.jpg); */
        height: 100%;
    }
    /* 认证模块左侧 start*/
    .major-content-left {
        width: 980px;
        display: inline-block;
        height: 100%;
    }

    .major-content-left .authentication-model {
        width: 215px;
        height: 165px;
        /* background-color: aliceblue; */
        margin-right: 20px;
        margin-bottom: 30px;
        display: inline-block;
        cursor: pointer;
        margin-left: 10px;
        overflow: hidden;
        border-radius: 12px;
    }
    .major-content-left .authentication-model:nth-child(4n+4){
        margin-right: 0px;
    }
    .major-content-left .authentication-model img{
        width: 215px;
        height: 165px;
    }
    /* 认证模块左侧 end*/
    /* 认证模块右侧 start*/
    .major-content-right {
        display: inline-block;
        width: 200px;
        height: 100%;
        float: right;
        padding: 40px 0px;
        font-size: 11px;
    }
    .major-content-right-title{
        padding: 8px 0px;
    }
    /* 认证模块右侧 end*/
  /* 新认证模块课程 end */
    /* 文章资讯模块 start */
    .obtainingArticles {
        height: 350px;
    }

    .obtainingArticles-one {
        width: 283px;
        /* height: 355px; */
        border: 1px solid #ddd;
        display: inline-block;
        float: left;
        margin-right: 30px;
    }

    .obtainingArticles-one-img {
        width: 283px;
        height: 156px;
    }

    .obtainingArticles-one-img img {
        width: 100%;
    }

    .obtainingArticles-oneunder {
        padding: 15px 20px;
        background: #205aa8;
    }

    .obtainingArticles-one-left {
        width: 55px;
        height: 70px;
        /* background-color: #f6ae40; */
        display: inline-block;
    }

    .obtainingArticles-one-left-day {
        height: 40px;
        font-size: 30px;
        font-weight: 700;
        text-align: center;
        color: #fff;
    }

    .obtainingArticles-one-left-time {
        font-size: 13px;
        text-align: center;
        color: #fff;
    }

    .obtainingArticles-one-right {
        width: 188px;
        height: 70px;
        /* background-color: #ff5722; */
        float: right;
    }

    .obtainingArticles-one-right-title {
        width: 185px;
        height: 16px;
        font-size: 10px;
        padding: 10px 0px;
        overflow: hidden;
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        border-bottom: 1px solid #ddd;
        white-space: nowrap;
        color: #fff;
    }

    .obtainingArticles-one-right-conter {
        width: 185px;
        height: 16px;
        font-size: 10px;
        padding: 10px 0px;
        overflow: hidden;
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        white-space: nowrap;
        color: #fff;
    }

    .ellipsis {
        /* overflow: hidden; */
        white-space: nowrap;
        display: block;
    }

    .obtainingArticles-two {
        width: 325px;
        height: 255px;
        display: inline-block;
        /* border: 1px solid #ddd; */
        float: left;
        margin-right: 37px;
    }

    .obtainingArticles-two-title {
        width: 315px;
        padding: 11px 5px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: inline-block;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        white-space: nowrap;
        border-bottom: 1px solid #ddd;

    }

    .obtainingArticles-three {
        width: 150px;
        height: 255px;
        display: inline-block;
        /* border: 1px solid #ddd; */
        float: left;
        margin-right: 30px;
    }

    .obtainingArticles-three-img {
        width: 150px;
    }

    .obtainingArticles-three-img img {
        width: 100%;
    }

    .obtainingArticles-four {
        width: 325px;
        height: 255px;
        display: inline-block;
        /* border: 1px solid #ddd; */
        float: left;
        /* margin-right: 25px; */

    }

    /* 导航吸顶样式 */
    .sticky-element {
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 100;
        /* display: none; */
        /* 初始隐藏 */
    }

    .sticky-element.active {
        display: block;
        /* 滚动到阈值时显示 */
    }