/* sub_active nth-child(5) 수정*/
/* .sub_head31 > ul > li:nth-child(3) > a::after {
    content: '';
    display: block;
    background-color: #fff;
    width: 100%;
    height: 3px;
    position: absolute;
    bottom: 0px;
    left: 0px;
} */
.sub_head31 > ul > li:nth-child(3) > a {
    color: #fff;
    font-weight: 500;
}

/* sub313_title */
.sub313_title {
    padding-top: 84px;
    text-align: center;
    padding-bottom: 58px;
}
.sub313_title > div > h3 {
    font-size: 36px;
    font-weight: 500;
    color: #03235d;
}
.sub313_title > div > img {
    margin-bottom: 25px;
}

/* sub313_intro */
.sub313_intro {
    background-image: url(../img/sub_img/sub313_bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    padding-top: 204px;
    padding-left: 281px;
    padding-bottom: 189px;
    color: #fff;
}
.sub313_intro > h3 {
    font-size: 36px;
    font-weight: 200;
    display: inline-block;
}
.sub313_intro > h3 > span {
    font-size: 48px;
    font-weight: 500;
}
.sub313_intro > span {
    font-size: 108px;
    font-weight: 500;
    color: #ffd500;
}
.sub313_intro > p {
    font-size: 20px;
    font-weight: 200;
    margin-top: 7px;
    margin-bottom: 40px;
}
.sub313_intro > p:last-child {
    color: #ffd500;
    margin-bottom: 0px;
}
.sub313_intro > div:first-of-type {
    margin-bottom: 10px;
}
.sub313_intro_box {
    border: 1px solid #ffffff;
    width: 533px;
    height: 111px;
    padding-top: 16px;
    padding-bottom: 25px;
}
.sub313_intro_box > p {
    font-size: 20px;
    font-weight: 200;
    margin-bottom: 1px;
    text-indent: 25px;
}
.sub313_intro_box > h4 {
    font-size: 28px;
    font-weight: 500;
    text-align: center;
}
.sub313_intro_box > h4 > span {
    color: #ffd500;
}
.sub313_intro_box3 {
    margin-bottom: 17px;
}
.sub313_intro_box2 {
    width: 533px;
    border: 1px solid #ffd500;
    text-align: center;
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}
.sub313_intro_box2:first-child {
    margin-bottom: 17px;
}
.sub313_intro_box2 > p {
    font-size: 20px;
    font-weight: 500;
    color: #ffd500;
    line-height: 44px;
}
.sub313_intro_box2 > span {
    font-size: 20px;
    font-weight: 500;
    line-height: 44px;
    width: 50%;
}
.sub313_intro_box2 > span:first-child {
    color: #000;
    background-color: #ffd500;
}
.sub313_intro_box2 > span:last-child {
    color: #ffd500;
}

/*tablet main*/
@media screen and (max-width: 1024px) {
    .center {
        width: 760px;
    }
    .sub313_intro {
        padding-left: 60px;
    }
}

/*mobile main*/
@media screen and (max-width: 767px) {
    .center {
        width: 380px;
    }
    .sub313_title > div > h3 {
        font-size: 26px;
    }
    .sub313_intro {
        width: 100%;
        padding-left: 15px;
        padding-top: 60px;
        padding-bottom: 60px;
    }
    .sub313_intro > h3 {
        font-size: 26px;
    }
    .sub313_intro_box2 > span {
        font-size: 15px;
    }
    .sub313_intro > p {
        font-size: 12px;
    }
    .sub313_intro > h3 > span {
        font-size: 28px;
    }
    .sub313_intro > span {
        display: block;
    }
    .sub313_intro_box > h4 {
        font-size: 20px;
    }
    .sub313_intro_box {
        width: 365px;
    }
    .sub313_intro_box > p {
        text-indent: 8px;
    }
    .sub313_intro_box2 {
        width: 360px;
    }
}