.all_wrap {
    color: #111111;
    padding-top: 120px;
    width: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    font-size: 18px;
    text-align:center;
}


    .all_wrap .font18 {
        font-size:18px;
    }
    .all_wrap .font20 {
        font-size: 20px;
    }
    .all_wrap .font24 {
        font-size: 24px;
    }
    .all_wrap .font32 {
        font-size: 32px;
    }
    .all_wrap .font40 {
        font-size: 40px;
    }
    .all_wrap .bold {
        font-weight:700;
    }
    .all_wrap .lighter {
        font-weight: 300;
    }
    .all_wrap .txt_gray {
        color: #777;
    }
    .all_wrap .math {
        font-family: math;
    }
    .all_wrap .img img {
        width:100%;
    }


    .all_wrap .sub_wrap {
        max-width: 1400px;
        width: 100%;
        display: flex;
        justify-content: center;
        flex-direction: column;
        padding: 120px 25px;
        align-items: center;
    }


.title_box {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    padding: 120px 0;
    text-align: center;
    background-color: #f7f7f7;
    width: 100%;
}

    .title_box .sub_tit {
        color: #999;
        font-weight: 300;
    }

    .title_box .main_tit {
        font-size: 80px;
        font-weight: 900;
        margin: 10px 0 20px 0;
        font-family: math;
    }


    .title_box .detail_txt {
        font-size: 22px;
        font-weight: 500;
        margin-bottom:20px;
    }

.sub_wrap .txt_list {
    display: flex;
    text-align: left;
    justify-content: space-around;
    border-bottom: 1px solid #cbcbcb;
    margin-bottom: 80px;
    padding-bottom: 80px;
    width: 100%;
}

    .sub_wrap .txt_list .tit {
        width: 35%;
    }
    .sub_wrap .txt_list .txt {
        width: 50%;
        word-break: keep-all;
    }

    .sub_wrap .txt_list .tit {
        display: flex;
        position: relative;
    }
        .sub_wrap .txt_list .tit span {
            padding-left: 80px;
        }
            .sub_wrap .txt_list .tit span.no {
                padding-left: 0;
                position: absolute;
                top: 0;
                left: 0;
                display: block;
                width: 65px;
                text-align: right;
                border-bottom: 2px solid #000;
            }



    @media (min-width: 768px) and (max-width: 1024px) {
        .all_wrap .font18 {
        font-size: 14px;
    }

    .all_wrap .font20 {
        font-size: 17px;
    }

    .all_wrap .font24 {
        font-size: 22px;
    }

    .all_wrap .font32 {
        font-size: 28px;
    }

    .all_wrap .font40 {
        font-size: 32px;
    }

    .all_wrap .font60 {
        font-size: 48px;
    }

    .all_wrap .font80 {
        font-size: 58px;
    }
        .title_box,
        .all_wrap .gray,
        .all_wrap .sub_wrap {
            padding: 100px 25px;
        }

        .sub_wrap .txt_list .tit {
            width:50%;
        }


}



@media (max-width: 767px) {

    .all_wrap {
        padding-top: 80px;
    }

    .all_wrap .font18 {
        font-size: 14px;
    }

    .all_wrap .font20 {
        font-size: 17px;
    }

    .all_wrap .font24 {
        font-size: 22px;
    }

    .all_wrap .font32 {
        font-size: 28px;
    }

    .all_wrap .font40 {
        font-size: 32px;
    }

    .all_wrap .font60 {
        font-size: 48px;
    }

    .all_wrap .font80 {
        font-size: 60px;
    }

    .title_box {
        padding: 60px 25px;
    }

    .title_box .sub_tit {
        font-size: 14px;
    }

    .title_box .main_tit {
        font-size: 40px;
    }

    .title_box .detail_txt {
        font-size: 16px;
    }
    .all_wrap .gray,
    .all_wrap .sub_wrap {
        padding: 100px 25px;
    }

    .sub_wrap .txt_list {
        flex-direction: column;
        gap: 20px;
    }

        .sub_wrap .txt_list .tit,
        .sub_wrap .txt_list .txt {
            width:100%;
        }

            .sub_wrap .txt_list .tit span.no {
                width: 45px;
            }
            .sub_wrap .txt_list .tit span {
                padding-left: 60px;
            }

}