/* 关于我们 */

/* 改变一些插件默认的css */
.nav-tabs>li.active>a, .nav-tabs>li.active>a:focus, .nav-tabs>li.active>a:hover{
    border: 0;
    background-color: transparent;
    border-radius: 0;
}

section .about_us_c-up{
    background: url("../images/about_us_1.jpg") center no-repeat;
    background-size: cover;
    width: 100%;
    height: 400px;
    /*margin-top: 90px;*/
}

/* 屏幕小于425用小图 */
@media screen and (max-width: 425px){
    section .about_us_c-up{
        background: url("../images/au-t.jpg") center center no-repeat;
        background-size: cover;
        height: 200px;
        width: 100%;
    }
}

.main-c .main-c-1 .change_c{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    background-color: #f5f7f7;
}

.main-c .main-c-1 .container{
    padding-bottom: 100px;
}

.main-c .main-c-1 .change_c li{
    padding:  15px 50px;
}


.main-c .main-c-1 .change_c li a{
    color: #333333;
    font-size: 18px;
}

.main-c .main-c-1 .change_c li a:hover{
    background-color: transparent;
    border: 0;
    color: #3399ff;
}

.main-c .main-c-1 .change_c li.active{
    padding: 15px 45px;
    background-color: #fff;
    border-bottom: 2px solid #3399ff;

}

.main-c .main-c-1 .change_c li a.active{
    color: #3399ff;
}

#company_info .info_1 .info_head,
#company_info .info_2 .info_head
{
    text-align: center;
    color: #333333;
    font-size: 20px;
    line-height: 110px;
    font-weight: bold;
}

#company_info .info_1 .info_body,
#company_info .info_2 .info_body
{
    font-size: 14px;
    color: #4d4d4d;
}

#company_info .info_1 .info_body span{
    line-height: 30px;
}

#company_info .info_3{
    padding-top: 100px;
}