body {
    margin: 0;
    padding: 0;
}

#app {
    width: 100%;
    /*background: rgba(242, 242, 242, 1);*/
    color: #333;
}

*, ::after, ::before {
    box-sizing: initial;
}

.top {
    height: 82px;
    z-index: 1000;
}

/*文字过长，不换行，超出部分显示省略号*/
.moreLength {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/*上部*/
.course_top {
    width: 100%;
    height: 75px;
    background: #FFF;
}

/*logo*/
.course_logo {
    width: 1200px;
    margin: 0 auto;
    display: flex;
}

.course_logo .course_logo_img {
    margin-right: 50px;
    position: relative;
}

.course_logo .course_logo_img img:nth-child(1) {
    position: absolute;
    top: 26px;
    left: 0;
}

.course_logo .course_logo_img img:nth-child(2) {
    position: absolute;
    top: 23px;
    left: 3px;
}

.course_logo .course_logo_img img:nth-child(3) {
    position: absolute;
    top: 26px;
    left: 30px;
}

.course_logo .course_logo_tit {
    font-size: 28px;
    line-height: 75px;
}

/*banner*/
.course_ban, .course_ban img {
    width: 100%;
    height: 250px;
}

/*查询部分*/
.prod_search {
    display: flex;
    position: relative;
}

.prod_search .el-input {
    width: 740px;
    display: inline-block;
    border: 1px solid #D80C18;
    border-radius: 4px;
}
.prod_search .el-input__inner {
    background-color: rgba(255, 255, 255);
    border: none;
    height: 42px;
}
.prod_search .el-input__inner::placeholder {
    color:  #000;
}
.prod_search .search_btn {
    background-color: transparent;
    color: #D80C18;
    font-size: 18px;
    margin-left: 30px;
    height: 42px;
    position: absolute;
    right: 0;
    border: none;
}

.search_btn:focus, .search_btn:hover {
    border: none;
    color: #D80C18;
    background-color: rgba(255, 255, 255, 0.3);
}

.search_btn i {
    font-weight: bold;
}

/*内容部分*/
.course_detail {
    width: 100%;
    padding-bottom: 50px;
}

/*查询筛选按钮*/
.search_filter {
    width: 1313px;
    margin-top: 38px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.8);
}

.search_filter .search_condition_row {
    width: 100%;
    height: 29px;
    margin-bottom: 40px;
    overflow: hidden;
    position: relative;
}
.search_condition_row:nth-child(1){
    margin-top: 26px;
}

.search_filter .search_condition_row .condition_button {
    background-color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
    /*font-family: 'Arial Negreta', 'Arial Normal', 'Arial', sans-serif;*/
    margin: 0 48px 20px 0;
    width: 89px;
    height: 29px;
    line-height: 29px;
    border: none;
    text-align: center;
    cursor: pointer;
    padding: 0;
    float: left;
}

.search_filter .search_condition_row .condition_button:hover {
    color: #fff;
    background-color: #D80C18;
}

.search_filter .search_condition_row .condition_button.vui_button_active, .search_filter .search_condition_row .condition_button:focus {
    color: #fff;
    background-color: #D80C18;
}

.search_filter .search_condition_row .condition_button.button_tit {
    font-size: 16px;
    font-weight: bold;
    color: #7F7F7F !important;
    background: none;
    cursor: auto;
    width: 80px;
}

/*更多*/
.search_filter ul li.limore {
    background-color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
    font-size: 18px;
    color: #C60916;
    text-align: center;
    position: absolute;
    cursor: pointer;
}

.search_filter ul li.limore::before {
    font-size: 22px;
}

/*更多筛选*/
.search_filter .moreFilter {
    position: absolute;
    top: 10px;
    right: 0;
}

/*视频列表*/
.course_video {
    width: 1480px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
}

.course_video .video_item {
    width: 309px;
    height: 339px;
    color: #000;
    font-size: 16px;
    /*font-family: 'Arial Negreta', 'Arial Normal', 'Arial', sans-serif;*/
    box-shadow: 0px 0px 6px 0px rgb(49 78 134 / 20%);
    /*padding: 15px;*/
    margin: 15px 30px;
    /*float: left;*/
    /*position: relative;*/
    cursor: pointer;
}

.course_video .video_item:hover {
    box-shadow: 0 15px 35px 0 rgb(49 78 134 / 20%);
}

.course_video .video_item a {
    text-decoration: none;
}

/*.course_video .video_item:nth-child(5n) {*/
/*    margin-right: 0;*/
/*}*/

.course_video .video_item .item_img {
    /*margin-bottom: 5px;*/
}

.course_video .video_item img {
    width: 309px;
    height: 176px;
}

.course_video .video_item .item_t {
    padding: 20px 15px;
}

.course_video .video_item .item_tit {
    font-size: 16px;
    color: #000;
    font-weight: bold;
}

.course_video .video_item .item_time {
    font-size: 16px;
    color: #555555;
    /*margin-top: 5px;*/
}

.course_video .video_item .item_time span {
    margin: 15px 15px 0 0;
    display: inline-flex;
    align-items: center;
}

.course_video .video_item .item_time span:before {
    font-size: 20px;
}

.course_video .video_item .item_time span:nth-child(2) {
    width: 80px;
}

.course_video .video_item .item_tit:hover, .course_video .video_item .item_time span:hover {
    color: #D80C18
}

.course_video .video_item .item_time span img {
    width: 32px;
    height: 32px;
    margin-right: 5px;
}


/*查询*/
.chaxun {
    width: 100%;
    /* height: 418px; */
    background: linear-gradient(rgb(255 255 255 / 25%), rgb(255 255 255 / 25%)), url(../../../img/classicCase/banner3.png) no-repeat;
    background-size: 100%;
    /* opacity: 0.75; */
    margin-bottom: 35px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    /* bottom: -1px; */
    /* top: 59px; */
    padding-top: 100px;
}

/*推荐*/
.course_video .video_item .tuijian {
    position: absolute;
    top: 0;
    left: 0;
}

.course_video .video_item .tuijian img {
    width: 70px;
    height: 70px;
}


/*分页*/
.paginDiv {
    width: 1480px;
    margin: 0px auto 40px;
}

.el-pagination {
    margin-top: 30px;
    text-align: right;
}

.el-pagination.is-background .el-pager li:not(.disabled).active {
    background-color: transparent;
    color: #D80C18;
    border: none;
}

.el-pagination.is-background .el-pager li {
    background: #FFFFFF;
    border-radius: 0px 0px 0px 0px;
    opacity: 1;
    border: 1px solid #DCDCDC;
}

.el-pagination.is-background .btn-prev,
.el-pagination.is-background .btn-next {
    background-color: transparent;
    border: 1px solid #DCDCDC;
}