.list {
    overflow: hidden;
    width: 1300px;
    margin: 0 auto;
}

.list_nav {
    width: 300px;
    padding: 20px;
    float: left;
}

.list_nav .column_title {
    display: none;
}

.column_title_pc {
    line-height: 50px;
    background-color: #092e94;
    font-size: 20px;
    color: #FFFFFF;
    text-align: center;
}

.sub_columns {
    border: 1px solid #092e94;
    font-size: 18px;
    padding-top: 20px;
    padding-right: 40px;
    padding-bottom: 20px;
    padding-left: 40px;
}

.sub_columns li {
    list-style-type: none;
    text-align: center;
    padding: 8px 0px;
}

.sub_columns a {
    display: block;
    border: 1px solid #092e94;
    text-decoration: none;
    line-height: 36px;
    color: #092e94;

}

.sub_columns a:hover {
    color: #FFFFFF;
    background-color: #092e94;
}

.sub_columns a.active {
    color: #FFFFFF;
    background-color: #092e94;
}

.column_content {
    width: 1000px;
    padding: 20px;
    padding-top: 0px;
}

.column_title {
    width: 100%;
    overflow: hidden;
    margin-top: 20px;
    padding-left: 10px;
    border-bottom: 1px solid #eee;
}

.column_title {
    margin-top: 25px;
    padding-bottom: 12px;
}

.column_title>img {
    width: 40px;
    float: left;
}

.column_title p {
    margin-top: 4px;
}

.column_title>div {
    float: left;
    height: 45px;
}

.column_title>div {
    font-size: 18px;
    margin-left: 8px;
}


.column_content {
    padding-bottom: 24px;
    float: right;
}

.column_content ul {
    padding: 20px 25px;
    padding-bottom: 0px;
}

.column_content ul li:before {
    content: "";
    width: 4px;
    height: 4px;
    vertical-align: middle;
    display: inline-block;
    background-color: #666;
    position: relative;
    top: -6px;
    left: -10px;
}

.column_content ul li {
    height: 26px;
    list-style: none;
}

.column_content ul li a {
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    display: inline-block;
    color: #666;
    width: 65%;
    font-size: 14px;
    line-height: 26px;
}

.column_content ul li::after {
    width: 5px;
    height: 5px;
    background-color: #333;
}

.column_content ul li span {
    float: right;
    color: #999999;
    width: 30%;
    min-width: 70px;
    display: inline-block;
    text-align: right;
    line-height: 26px;
    font-size: 14px;
}

.pageswitch {
    margin: 0 auto;
    text-align: center;
    margin-top: 20px;
}

.pageswitch a {
    margin-right: 10px;

    color: #333;
}

@media screen and (max-width:600px) {
    .list_nav {
        width: 100vw;

    }

    .list {
        width: 100vw;
        min-width: 0px;
        display: flex;
        flex-direction: column;
    }

    .list_nav .column_title {
        display: flex;
        padding-bottom: 0px;
    }

    .column_title_pc {
        display: none;
    }

    .sub_columns {
        margin: 10px;
        padding: 10px;
        border: none;
        border-top: 1px solid #666;
        width: 95%;
        margin-bottom: 0px;
        padding-bottom: 0px;
    }

    .sub_columns a {
        border: none;
        line-height: 28px;
    }

    .sub_columns ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }

    .sub_columns ul li {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        align-items: center;
        height: 28px;
        width: 30%;
        font-size: 14px;
        border: 1px solid #00336c;
    }

    .column_content {
        width: 100vw;
    }

    .column_content>.column_title {
        display: none;
    }

    .column_title {
        border: none;
    }
}

.article {
    padding: 20px;
    width: 1300px;
    margin: 0 auto;
}

.title {
    font-size: 20px;
    line-height: 35px;
    padding-bottom: 10px;
    text-align: center;
    border-bottom-width: 1px;
    border-bottom-style: dashed;
    border-bottom-color: #787878;
    font-weight: bold;
}

.info {
    font-size: 14px;
    line-height: 26px;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
    color: #888888;
}

.content {
    padding: 15px;
    line-height: 24px;
    text-indent: 2em;
}

.attachments>p {
    font-size: 18px;
    line-height: 36px;
}

.attachments div {
    line-height: 24px;
    padding-left: 12px;
}

@media screen and (max-width: 600px) {
    .article {
        width: 100vw;
    }
}

.courses {
    background-color: #eee;
    padding-top: 24px;
}

.courses_center {
    width: 1300px;
    margin: 0px auto;
    overflow: hidden;
    padding: 24px;
    padding-top: 0px;
    background-color: #eee;
}



.course_types>div {
    padding: 8px 24px;
    font-size: 18px;
    overflow: hidden;
    border-bottom: 1px solid #ccc;
    padding-bottom: 0px;
}

.course_types>div>p {
    float: left;
    line-height: 36px;
    color: #999;
}

.course_types>div>div {
    float: left;
    padding-left: 36px;
}

.course_types>div>div a {
    margin-left: 24px;
}

.course_types>div>div a {
    display: inline-block;
    cursor: pointer;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    height: 36px;
    line-height: 36px;
    font-size: 18px;
    padding: 0 20px;
    text-align: center;
    color: #333;
    border-radius: 18px;
    margin: 0 12px 8px 0;
}

.course_types>div>div a:hover {
    text-decoration: none;
    color: #092e94;
}

.course_types>div>div a.chosed {
    background-color: #37a0e5;
    color: #fff;
}

.course_types>div>form {
    height: 36px;
    display: block;
    margin-bottom: 8px;
    margin-top: 8px;
}

.course_types>div>form input[type="text"] {
    border: 1px solid #1a48c9;
    outline: none;
    font-size: 18px;
    height: 36px;
    line-height: 36px;
    padding: 0px 12px;
    border-radius: 18px;
    float: left;
}

.course_types>div>form button {
    height: 36px;
    width: 54px;
    border-radius: 18px;
    border: none;
    outline: none;
    background-color: #37a0e5;
    position: relative;
    right: 36px;
    background-image: url(../images/search_btn.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: 40% 60%;
    cursor: pointer;
}

@media screen and (max-width: 600px) {
    .courses {
        width: 100vw;
        padding-top: 0px
    }

    .courses_center {
        width: 100vw;
        padding: 4vw;

    }

    .course_types>div {
        padding: 1vw 2vw;
        font-size: 18px;
        overflow: hidden;
    }

    .course_types>div>p {
        float: left;
        line-height: 36px;
        margin-bottom: 6px;
    }

    .course_types>div>div {
        float: left;
        width: 100%;
    }

    .course_types>div>div a {
        margin-left: 24px;
    }

    .course_types>div>div a {
        display: inline-block;
        cursor: pointer;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        height: 32px;
        line-height: 32px;
        font-size: 16px;
        padding: 0 20px;
        text-align: center;
        color: #666666;
        border-radius: 16px;
        margin: 0 6px 7px 0;
    }

    .course_types>div>div a:hover {
        text-decoration: none;
        color: #092e94;
    }

    .course_types>div>div a.chosed {
        background-color: #37a0e5;
        color: #fff;
    }

    .course_types>div>form {
        height: 36px;
        display: flex;
        justify-content: center;
        position: relative;
    }

    .course_types>div>form input[type="text"] {
        border: 1px solid #1a48c9;
        outline: none;
        font-size: 16px;
        height: 32px;
        line-height: 32px;
        padding: 0px 12px;
        border-radius: 16px;
        float: left;
        width: 100%;
    }

    .course_types>div>form button {
        height: 32px;
        width: 48px;
        border-radius: 16px;
        border: none;
        outline: none;
        background-color: #37a0e5;
        background-image: url(../images/search_btn.png);
        background-position: center center;
        background-repeat: no-repeat;
        background-size: 40% 60%;
        cursor: pointer;
        position: absolute;
        right: 0px;
    }

}

.course_images_show,
.course_show {
    overflow: hidden;
    padding-top: 20px;
}

.course_images_show>div,
.course_show>div {
    float: left;
    cursor: pointer;
    float: left;

    margin: 0 20px 20px 0;
    border-radius: 4px;
    overflow: hidden;
    background-color: #fff;
}

.course_show>div {
    width: 230px;

    padding-bottom: 6px;
}

.course_show>div img {
    width: 230px;
    height: 130px;
}

.course_images_show>div {
    margin: 0 32px 20px 0;
}

.course_images_show>div a {
    width: 280px;
    height: 210px;
    display: block;
}

.course_images_show>div img {
    width: 300px;
    height: 225px
}

.course_show>div>a:hover {
    text-decoration: none;
}

.course_show>div:hover,
.course_images_show>div:hover {
    -webkit-box-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.12);
    box-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.12);
}

.course_show>div>a>p {
    padding: 0 12px;
}

.course_title {
    max-height: 36px;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    font-weight: bold;
    font-family: PingFangSC-Medium, PingFangSC;
    line-height: 18px;
    overflow: hidden;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-top: 6px;
}

.course_author_name {
    height: 14px;
    line-height: 14px;
    font-size: 14px;
    margin-top: 6px;
    color: #666;
    overflow: hidden;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course_author_intro {
    width: 100%;
    height: 51px;
    max-height: 51px;
    line-height: 17px;
    margin: 8px 0 0 0;
    font-size: 14px;
    color: #999;
    overflow: hidden;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.course_info {
    font-size: 14px;
    overflow: hidden;
    color: #999;
}

.course_info span {
    float: right;
}

.course_info span:first-child {
    float: left;
}

@media screen and (max-width: 600px) {

    .course_show,
    .course_images_show {
        padding-top: 0px;
    }

    .course_images_show>div,
    .course_show>div {
        margin: 0px;
        width: 45vw;
        margin-top: 12px;
    }

    .course_show>div img {
        width: 45vw;
        height: 25.43vw;
    }

    .course_images_show>div img,
    .course_images_show>div a {
        width: 45vw;
        height: 30.375vw;
    }

    .course_show,
    .course_images_show {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;

    }

    .course_info {
        font-size: 10px;
        overflow: hidden;
        color: #999;
    }

}

.yxpy {
    width: 1300px;
    margin: 0px auto;
    padding-top: 8px;
}

.yxpy ul {
    padding-top: 12px;
}

.yxpy ul li {
    list-style: none;
    margin-bottom: 35px;
    overflow: hidden;
}

.yxpy_img {
    float: left;
}

.yxpy_right {
    margin-left: 266px;
}

.yxpy_img img {
    width: 240px;
    height: 150px;
}

.yxpy_title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.yxpy_title a {
    font-size: 20px;
    color: #333;
    font-weight: bold;
}

.yxpy_info {
    margin: 20px 0px;
}

.yxpy_info span {
    display: inline-block;
    padding-left: 25px;
    margin-right: 38px;
    background: url(../images/icon-date.png) left center no-repeat;
}

.yxpy_info span.look {
    background: url(../images/icon-look.png) left center no-repeat;
}

.yxpy_intro {


    color: #6b6b6b;
    line-height: 25px;
    height: 50px;
    overflow: hidden;

}

@media screen and (max-width: 600px) {
    .yxpy {
        width: 100vw;
        padding: 4vw;
    }
    .yxpy ul li{
        margin-bottom: 20px;
    }
    .yxpy_right{
        margin-left: 130px;
    }
    .yxpy_title a{
        font-size: 16px;
    }
    .yxpy_info{
        margin: 10px 0px 0px 0px;
    }
    .yxpy_info span {
        margin-right: 12px;
    }
    .yxpy_img img {
        width: 120px;
        height: 75px;
    }
    .yxpy_intro{
        height: 25px;
    }
}



.courses_unit_white{
    background-color: #fff;
}
.courses_unit_show{
    overflow: hidden;
    padding-top: 24px;
}
.swiper-container-courses{
    overflow: hidden;
}
.courses_unit{
    float: left;
    width: 260px;
}
.courses_line{
    float: right;
    width: 992px;
    overflow: hidden;
}
.courses_unit_list{
    padding-left: 19px;
}
.courses_unit_list li{
    overflow: hidden;
    padding: 16px;
    border-bottom: 1px dashed #cacaca;
}
.unit_course_left{
    float: left;
    width: 230px;
    height: 130px;
}
.unit_course_left img{
    width: 230px;
    height: 130px;
}
.unit_course_right{
    margin-left: 260px;
}
.unit_switch_box{
    width: 260px;
    border: 2px solid #dbf2ff;
    border-radius: 20px;
    padding: 15px 0;
    background: #f1faff;
}
.unit_switch_box span{
    display: block;
    width: 267px;
    height: 82px;
    line-height: 26px;
    font-size: 18px;
    font-family: "微软雅黑";
    margin-top: 12px;
}
.unit_switch_box span:hover,.unit_switch_box span.swiper-active-switch{
    background-image: url(../images/jiexue.jpg);
    background-repeat: no-repeat;

}
.unit_switch_box span:hover div,.unit_switch_box span.swiper-active-switch div{
    color: #fff;
}
.unit_switch_box span div{
    color: #a2a2a2;
    width: 255px;
    display: block;
    height: 100%;
    text-align: center;
    padding-right: 7px;
    padding-top: 12px;
    margin-right: 8px;
    border-bottom: 1px dashed #cacaca;
    cursor: pointer;
}
.unit_switch_box span:last-child div{
    border-bottom: none;
}
.unit_switch_box span div:hover{
    text-decoration: none;
}
.unit_name{
    font-size: 14px;
}

@media  screen and (max-width: 600px){
    .courses_unit_show{
        padding-top: 8px;
    }
    .courses_unit{
        width: 100%;
    }
    .courses_line{
        width: 100%;
    }
    .courses_unit_list{
        width:100%;
        padding: 0px;
    }
    .courses_unit_list li{
        display: flex;
        align-items: center;
        margin: 0px;
        padding: 2vw 0px;
        width: 100%;
        justify-content: space-between;
    }  
    .unit_course_left{
        float: none;
        width: auto;
        height: auto;
    }
    .unit_course_left img{
        width: 40vw;
        height: 22.6vw;
    }
    .unit_course_right{
        margin: 0px;
        width: 46vw;
        display: flex;
        flex-direction: column;
    }
    .courses_unit_list p.course_author_intro{
        text-overflow: ellipsis;
        overflow: hidden;
        line-height: 17px;
        height: 17px;
        margin-bottom: 6px;
    }
    .unit_switch_box{
        display: flex;
        justify-content: space-between;
        background-color: #fff;
        border-radius: 0px;
        border: none;
        width: 100%;
        padding: 5px 0px;
    }
    .unit_switch_box span{
        width: 27vw;
        height: auto;
        border: 1px solid #4b8abd;

    }
    .unit_switch_box span div{
        border:none;
        width: 100%;
        height: 100%;
        margin: 0px;
        padding:2vw;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .unit_switch_box span.swiper-active-switch{
        background-image: none;
        color: #fff;
        background-color: #4b8abd;
    }
}