.about_banner {width: 100%;height: 430px;background: url("../../images/news_banner.jpg") center no-repeat;background-size: 1920px 430px;overflow: hidden;}
.about_banner .about_banner_dev {width: 920px;height: 200px;margin: 115px auto;box-sizing: border-box;padding: 70px 0 0 130px;
    background-size: 18.5%;}
.about_banner .about_banner_title {width: 100%;line-height: 50px;font-size: 26px;color:#fff;box-sizing: border-box;text-align: center;letter-spacing: 2px;margin-bottom: 10px;font-weight: 300;}
.about_banner .about_banner_en {width: 100%;line-height: 26px;font-size: 18px;color:#fff;box-sizing: border-box;text-align: center;letter-spacing:2px;text-transform: uppercase;    font-weight: 300;}

.news_dev {width: 1200px;margin: 50px auto 0;overflow: hidden;}
.news_dev .news_left {width: 28%;padding-right: 6%;box-sizing: border-box;height: 250px;float: left;}
.news_dev .news_right {width: 72%;float: left;overflow: hidden;}
.news_dev .news_left_title {width: 100%;height: 40px;line-height: 40px;font-size: 20px;color:#333;}
.news_dev .news_left_line {width: 45px;border-top: 3px solid #0e519d;margin-bottom: 20px;}
.news_dev .news_left_a {width: 78%;height: 50px;line-height:50px;border-bottom: 1px solid #e6e6e6;display: block;font-size: 16px;color:#333;background: url("../../images/news_gt.png") 95% center no-repeat;background-size: 8px 13px;font-weight: 400;}
.news_dev .news_left_a.cur {color:#0e519d;background: url("../../images/news_gt_cur.png") 95% center no-repeat;background-size: 8px 13px;}
.news_dev .news_li {width: 100%;overflow: hidden;padding: 45px 3.5% 40px 115px;position: relative;box-sizing: border-box;}
.news_dev .news_li:hover {background: #f6f6f6;}
.news_dev .news_li_date {width: 45px;height: 50px;position: absolute;top:45px;left: 35px;}
.news_dev .news_li_month {width: 45px;height: 25px;line-height: 25px;text-align: center;background: #0e519d;color:#fff;font-size: 14px;}
.news_dev .news_li_day {width: 45px;height: 25px;line-height: 23px;text-align: center;background: #fff;color:#0e519d;font-size: 17px;border: 1px solid #e6e6e6;box-sizing: border-box;}
.news_dev .news_li_content {width: 100%;}
.news_dev .news_li_title {width: 100%;height: 20px;line-height: 20px;font-size: 18px;color:#333;overflow: hidden;margin-bottom: 18px;font-weight: 400;}
.news_dev .news_li_text {width: 100%;line-height: 25px;color:#999;font-size: 14px;margin-bottom: 10px;}
.news_dev .news_li_a {width:auto;height: 20px;line-height: 20px;display: block;color:#0e519d;font-size: 12px;}
.news_dev .news_nav {display: none;}


@media screen and  (min-width: 1201px){

}
@media screen and  (max-width: 920px){
    .about_banner .about_banner_dev {width: 100%;background: none;padding: 70px 0 0;}
}

@media screen and  (min-width: 768px) and (max-width: 1200px){
    .news_dev {width: 98%;margin-left: 2%;}
}
@media screen and  (min-width: 640px) and (max-width: 767px){
    .about_banner .about_banner_title {font-size: 34px;}
    .news_dev {width: 100%;margin: 0;}
    .news_dev .news_left {display: none;}
    .news_dev .news_right {width: 100%;}

    .news_dev .news_nav {display: block;width: 100%;height: 60px;border-bottom: 1px solid #eee;}
    .news_dev .news_nav_a {width: 30%;margin: 10px 10%;height: 40px;line-height:38px;border: 1px solid #0e519d;border-radius: 5px;box-sizing: border-box;display: block;float: left;text-align: center;color:#0e519d;}
    .news_dev .news_nav_a.cur {background: #0e519d;color:#fff;}
}
@media  screen and (min-width: 320px) and (max-width: 639px){
    .about_banner {height: 300px;}
    .about_banner .about_banner_dev {margin: 50px auto;}
    .about_banner .about_banner_title {font-size: 18px;line-height:20px;padding: 15px 0;}
    .about_banner .about_banner_en {font-size: 14px;line-height: 20px;}

    .news_dev {width: 100%;margin: 0;}
    .news_dev .news_left {display: none;}
    .news_dev .news_right {width: 100%;}
    .news_dev .news_li {padding: 25px 3.5% 20px 75px;}
    .news_dev .news_li_date {left: 15px;top:25px;}
    .news_dev .news_nav {display: block;width: 100%;height: 60px;border-bottom: 1px solid #eee;}
    .news_dev .news_nav_a {width: 30%;margin: 10px 10%;height: 40px;line-height:38px;border: 1px solid #0e519d;border-radius: 5px;box-sizing: border-box;display: block;float: left;text-align: center;color:#0e519d;}
    .news_dev .news_nav_a.cur {background: #0e519d;color:#fff;}
}