/*Content CSS*/
#certification{overflow: hidden; }
section > article{padding: 85px 0 105px;}
/* section > article:nth-child(even){background-color: #f7f7f7} */
.sub_inner{width: 100%; max-width: 1400px; padding: 0 50px; margin: 0 auto;}

/* tit */
.fs_55{font-size: 55px; font-weight: 700; letter-spacing: -1.38px; line-height: 1.2;}
.bar_tit::before{content: ''; display: block; width: 45px; height: 5px; background-color: #0095db; margin: 0 0 10px;}

/* font-size */

.fs_18{font-size: 18px; font-weight: 400; line-height: 33px; letter-spacing: -.36px; color: #333; }


.cer_list{display: flex; flex-wrap: wrap; margin-top: 40px;}
.cer_list li{width: calc(25% - 15px); margin-right: 20px;}
.cer_list li:nth-child(4n){margin-right: 0;}
.cer_list li:nth-child(n+5){margin-top: 45px;}
.cer_list li span{position: relative; padding-left: 15px; margin-top: 15px; color: #333; display: block;}
.cer_list li span::before{content: ''; display: block; width: 6px; height: 6px; border-radius: 50%; background-color: #555; position: absolute; top: 13px; left: 0;}
.cer_list li a{display: block;}
.cer_list li .img{border: solid 1px #ddd; overflow: hidden; transition: .3s; position: relative;}
.cer_list li .img::before{content: ''; display: block; width: 100%; height: 100%; border: solid 2px #0095db; opacity: 0; transition: .3s; position: absolute; top: 0; left: 0;}

@media screen and (min-width:1025px){
    .cer_list li:hover .img{border-color: #0095db;}
    .cer_list li:hover .img::before{opacity: 1;}
}


@media screen and (max-width:1400px){


}
@media screen and (max-width:1280px){


}

@media screen and (max-width:1024px){
    section > article{padding: 50px 0;}
    .sub_inner{padding: 0 30px;}
    /* tit */
    .fs_55{font-size: 35px; text-align: center;}
    .bar_tit::before{width: 30px; height: 4px; margin: 0 auto 5px;}

    /* font-size */
    .fs_18{font-size: 15px; line-height: 1.7;}
    .cer_list{margin-top: 30px;}
    .cer_list li{width: calc(33.3% - 10px); margin-right: 15px;}
    .cer_list li:nth-child(4n){margin-right: 15px;}
    .cer_list li:nth-child(3n){margin-right: 0;}
    .cer_list li:nth-child(n+4){margin-top: 25px;}
    .cer_list li span{padding-left: 12px;}
    .cer_list li span::before{width: 5px; height: 5px; top: 9px}


}
@media screen and (max-width:768px){


}
@media screen and (max-width:640px){
    .sub_inner{padding: 0 20px;}

    .fs_55{font-size: 30px; text-align: center;}
    .bar_tit::before{width: 28px; height: 3px;}

    /* font-size */
    .fs_18{font-size: 14px;}
    .cer_list{margin-top: 25px;}
    .cer_list li{width: calc(50% - 5px); margin-right: 10px !important;}
    .cer_list li:nth-child(2n){margin-right: 0 !important;}
    .cer_list li:nth-child(n+3){margin-top: 20px;}
    .cer_list li span{padding-left: 10px; margin-top: 10px;}
    .cer_list li span::before{width: 4px; height: 4px;}


}
@media screen and (max-width:480px){

}