/* common */
#c4_wrap .c_inner {width: 100%; max-width: 1400px; padding: 0 50px; margin: 0 auto; }
#c4_wrap .c_tit h3 {font-size: 24px; font-weight: 600; color:#00a0ce; margin-bottom: 5px;}

/* font size */
#c4_wrap .fs_72 {font-size: 72px; font-weight :700; line-height: 1.2; color:#000; font-family: 'Play', sans-serif; text-transform: uppercase; }
#c4_wrap .fs_28 {font-size: 28px; font-weight :600; line-height: 1.4; color:#000; }
#c4_wrap .fs_24 {font-size: 24px; font-weight :600; line-height: 1.2; color:#000;}
#c4_wrap .fs_20 {font-size: 20px; font-weight :300; line-height: 1.9; color:#000;}
#c4_wrap .fs_18 {font-size: 18px; font-weight :300; line-height: 1.72; color:#333;}

/*Content CSS*/
#c4_wrap {padding: 130px 0 140px; position: relative; z-index: 1; overflow: hidden;  overflow: hidden; background:url("../img/c4_bg.jpg") 50%/cover no-repeat;}
#c4_wrap .c_tit h2 {color:#fff;}

#c4_wrap .box_wrap {display: flex; flex-wrap: wrap;  justify-content: space-between; position: relative; z-index: 1; text-align: center; margin-top:70px; }
#c4_wrap .box_wrap .box {width: calc(25% - 15px); }

#c4_wrap .box {display: block; position: relative; overflow: hidden; }
#c4_wrap .box::before {content: ''; display: block; width: 100%; height: 100%; position: absolute; left: 0; top:0;  transition: opacity .3s;
opacity: 0; border: 4px solid #00a0ce; z-index: 2;}
#c4_wrap .box > img {transition: transform .3s; }
#c4_wrap .box:hover::before {opacity: 1; }
#c4_wrap .box:hover > img {transform: scale(1.05);}




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

    /*Content CSS*/


}

@media screen and (max-width: 1024px) {
    /* common */
    #c4_wrap .c_inner {padding: 0 30px;}
    #c4_wrap .c_tit h3 {font-size: 20px;  }
    /* font size */
    #c4_wrap .fs_72 {font-size:40px; }
    #c4_wrap .fs_28 {font-size: 20px; }
    #c4_wrap .fs_24 {font-size: 19px; }
    #c4_wrap .fs_20 {font-size: 17px; }
    #c4_wrap .fs_18 {font-size: 16px; }


    /*Content CSS*/
    #c4_wrap {padding: 70px 0; text-align: center; }
    #c4_wrap .box_wrap {max-width: 650px; margin-left: auto; margin-right: auto; }
    #c4_wrap .box_wrap .box {width: calc(50% - 15px); }
    #c4_wrap .box_wrap .box:nth-child(n+3) {margin-top:30px;}
    /* #c4_wrap .box_wrap .box > img {max-height: 250px;} */


}

@media screen and (max-width: 768px) {
    #c4_wrap .box_wrap .box {width: calc(50% - 10px); }
    #c4_wrap .box_wrap .box:nth-child(n+3) {margin-top:20px;}
    #c4_wrap .box .txt {padding: 0 25px 25px;}
}

@media screen and (max-width: 640px) {
    /* common */
    #c4_wrap .c_inner {padding: 0 20px;}
    #c4_wrap .c_tit h3 {margin-bottom: 10px; font-size: 16px;}
    /* font size */
    #c4_wrap .fs_72 {font-size:30px; }
    #c4_wrap .fs_28 {font-size:18px; }
    #c4_wrap .fs_24 {font-size:17px; }
    #c4_wrap .fs_20 {font-size: 14px; }
    #c4_wrap .fs_18 {font-size: 13px; }


    /*Content CSS*/
    #c4_wrap {padding:50px 0; }
    #c4_wrap .box_wrap {margin-top: 30px; }
    #c4_wrap .box_wrap .box {width: calc(50% - 7.5px); }
    #c4_wrap .box_wrap .box:nth-child(n+3) {margin-top:15px;}


}
@media screen and (max-width: 480px) {
    #c4_wrap .box_wrap .box {width: calc(50% - 5px); }
    #c4_wrap .box_wrap .box:nth-child(n+3) {margin-top:10px;}


}