.top_div_banner{
    width: 100%;
    /*height: 80px;*/
    background: #fff;
}
.nav_text {
    display: inline-block;
    padding: 0 10px;
    line-height: 80px;
     color: #000;
    font-size: 16px;
}
.about_nav{
    height:unset;
}
.headerbox {
    background: transparent;

    background:rgba(255,255,255,1);
    box-shadow:0px 2px 10px 0px rgba(167,168,171,0.06);
}
.about_navigation {
    width: 100%;
    margin: 0 auto;
    text-align: center;
    font-size: 16px;
    display:flex;
    padding:20px 0;
    max-width:1200px;
}
.case .about_navigation ul li{
    padding:0;
}
.pull-right{
    margin-left: auto;

}
.news_detail_box{
    width: 1200px;
    height: auto;
    margin:0 auto;
    border:0px solid;
    padding-bottom: 1rem;
    overflow: hidden;
    margin-bottom: 1rem;
}
.news_detail_left_title{
    font-size:24px;
    font-family:Microsoft YaHei;
    font-weight:bold;
    color:rgba(51,51,51,1);
    margin-top: 15px;
    text-align: center;
}
.news_detail_left_introduction{
    font-size:12px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(153,153,153,1);
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}
.span_left{
    margin-left: 30px;
}
.news_detail_left_content{
    width:843px;
    height:auto;
    border-radius:4px;
    font-size:16px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(85,85,85,1);
    line-height:35px;
    padding-right: 10px;
    margin-bottom: 30px;
}
.news_detail_left_content img{
    max-width: 100%;
}

.news_detail_left_content_prev{
    font-size:12px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(138,138,138,1);
}
.news_detail_left_content_next{
    font-size:14px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(138,138,138,1);
    margin-top:15px;
    margin-bottom: 25px;
}
.news_detail_left_content_line{
    width:849px;
    height:1px;
    border-bottom:1px solid rgba(234,234,234,1);
    margin-bottom: 30px;
}
.related_articles_box{
    width:849px;
    height:auto;
    border:0px solid rgba(234,234,234,1);
    margin-top: 25px;
    overflow: hidden;

}
.dot{
    width:5px;
    height:5px;
    background:rgba(158,170,198,1);
    border-radius:50%;
    display: inline-block;
    position: relative;
    top:-2px;
    margin-right: 5px;
}
.related_articles_list{
    font-size:14px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(85,85,85,1);
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
    margin-bottom: 18px;
}
.news_detail_left_related_articles{
    font-size:18px;
    font-family:Microsoft YaHei;
    font-weight:bold;
    color:rgba(51,51,51,1);
}
.right-item .item-list.new-item li:first-child {
    margin-top: 15px;
}

.right-item .item-list.new-item li {
    border-bottom: none;
    background: #f8f9fd;
    cursor: pointer;
    margin-bottom: 10px;
}
.right-item .item-list.new-item li .media-aside {
    padding: 10px;
}
.right-item .item-list li a {
    color: #757a71;
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.right-item {
    width: 285px;
    background: #fff;
    margin-bottom: 20px;
    padding: 15px 22px;
    border: 1px solid #ddd;
    margin-top: 7rem;
}
.right-item .item-list li a {
    color: #757a71;
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.right-item .item-list.new-item li .media-aside {
    padding: 10px;
}
.right-item .item-list li img {
    margin: 10px 0;
}
.new-item .media-body .red-font {
    color: red;
}
.new-item .media-body .item-title {
    margin-top: 10px;
    color: #999;
}

/************/
.right-item .item-list li {
    border-bottom: 1px solid #eee;
}
.right-item .item-list li .item-title a {
    width: auto;
}
.right-item .item-list li .font-light {
    margin: 12px 0;
    padding: 2px 0;
}
.right-item .item-list li a {
    color: #757a71;
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.right-item .item-list li .item-title a {
    width: auto;
}
.right-item .item-list li .font-light {
    margin: 12px 0;
    padding: 2px 0;
}
.right-item .item-list li a {
    color: #757a71;
    display: inline-block;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.href-btn {
    color: #757a71;
    padding: 2px 15px !important;
    border: 1px solid rgba(153, 153, 153, 0.99);
    border-radius: 13px;
    margin-right: 10px !important;
}
.right-item .item-list .item-detail {
    padding-bottom: 10px;
    color: #999;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.font-gray {
    color: #9b9ea0;
    font-size: 12px;
}
.nav-tabs>li.active>a, .nav-tabs>li.active>a:focus, .nav-tabs>li.active>a:hover {
    color: #555;
    cursor: default;
    background-color: #fff;
    border: 0px solid #ddd;
    border-bottom: 1px solid rgba(36,104,242,1);
}
/************/
.popular_recommendation{
    width:285px;
    background:rgba(255,255,255,1);
    border:1px solid rgba(234,234,234,1);
}
.recommendation_title{
    width: 100%;
    height: 50px;
    line-height: 50px;
    font-size:16px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(51,51,51,1);
    border-bottom:1px solid #ddd;
    padding-left: 20px;
    margin-bottom: 15px;
}
.recommendation_list{
    font-size:14px;
    font-family:Microsoft YaHei;
    font-weight:400;
    color:rgba(85,85,85,1);
    padding-left: 20px;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
    width: 94%;
    margin-bottom: 15px;
}
.recommendation_num1{
    width:14px;
    height:14px;
    background:rgba(255,0,0,1);
    border-radius:2px;
    text-align: center;
    line-height: 14px;
    display: inline-block;
    color:#fff;
    margin-right: 5px;
}
.recommendation_num2{
    width:14px;
    height:14px;
    background:rgba(255,133,71,1);
    border-radius:2px;
    text-align: center;
    line-height: 14px;
    display: inline-block;
    color:#fff;
    margin-right: 5px;
}
.recommendation_num3{
    width:14px;
    height:14px;
    background:rgba(255,172,56,1);
    border-radius:2px;
    text-align: center;
    line-height: 14px;
    display: inline-block;
    color:#fff;
    margin-right: 5px;
}
.recommendation_num4{
    width:14px;
    height:14px;
    background:rgba(229,229,229,1);
    border-radius:2px;
    text-align: center;
    line-height: 14px;
    display: inline-block;
    color:#fff;
    margin-right: 5px;
}
.user_login_li,.user_login_li a{
    color:#333;
}

.nav-tabs>li.active>a, .nav-tabs>li.active>a:focus, .nav-tabs>li.active>a:hover {
    color: #555;
    cursor: default;
    background-color: #fff;
    border: 0px solid #ddd;
    border-bottom: 1px solid rgba(36,104,242,1);
}
.about_navigation ul li.active>a{
    color: #555555;
}
/* 手机端 */
@media screen and (max-width: 768px) {
    .news_detail_box {
        width: 100%;
        height: auto;
        margin: 0 auto;
        border: 0px solid;
        padding-bottom: 1rem;
        overflow: hidden;
        margin-bottom: 1rem;
    }

    .news_detail_left_title {
        font-size: 24px;
        font-family: Microsoft YaHei;
        font-weight: bold;
        color: rgba(51,51,51,1);
        margin-top: 2rem;
    }
    .news_detail_left_content {
        width: 100%;
        height: auto;
        border-radius: 4px;
        font-size: 14px;
        font-family: Microsoft YaHei;
        font-weight: 400;
        color: rgba(85,85,85,1);
        line-height: 24px;
        padding-right: 10px;
        padding-left: 10px;
        margin-bottom: 30px;
    }
    .related_articles_box {
        width: 100%;
        height: auto;
        border: 0px solid rgba(234,234,234,1);
        margin-top: 25px;
        overflow: hidden;
    }
    .related_articles_list {
        font-size: 12px;
        font-family: Microsoft YaHei;
        font-weight: 400;
        color: rgba(85,85,85,1);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        margin-bottom: 18px;
        padding-left: 0;
    }
    .top_div_banner{
        width: 100%;
        /*height: 60px;*/
        background: #fff;
    }

}

@media screen and (max-width: 375px) {

}

@media screen and (max-width: 320px) {

}