header {
    position: relative;
    background-color: #173751;
}
.sub-menu {
    height: 4em;
    background-color: #eee;
}
.sub-menu a {
    height: 100%;
    line-height: 4em;
    color: #555 !important;
}
.sub-menu .active {
    font-weight: 500;
    color: #173751 !important;
}
.title-img-wrap {
    width: 100%;
    height: 10em;
}
.title-img-inner {
    width: 100%;
    height: 100%;
}
.exam2-title-img-wrap {
    background: url(../img/sub_banner_02.jpg) no-repeat center;
    background-size: cover;
}
.exam3-title-img-wrap {
    background: url(../img/sub_banner_03.jpg) no-repeat 50% 80%;
    background-size: cover;
}
.title-img-wrap h3 {
    width: 100%;
    text-align: center;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}
.detail-wrap {
    max-width: 1200px;
    font-size: 0.95em;
}
.detail-wrap h4 {
    font-size: 1.8em;
    font-weight: 400;
}
.detail-wrap > div:first-child {
    border-top: 1px solid #ddd;
}
.main-swiper > div > div {
    width: 100%;
    height: 18em;
}
.main-swiper > div > div img {
    object-fit: cover;
}
.detail-wrap button {
    border: 1px solid #173751;
    color: #173751;
}
.detail-wrap ul li {
    list-style: none;
}
.detail-wrap .swiper-button-next,
.detail-wrap .swiper-button-prev {
    width: 12px;
    height: 12px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
}
.detail-wrap .swiper-button-next {
    transform: rotate(45deg);
}
.detail-wrap .swiper-button-prev {
    transform: rotate(-135deg);
}
.detail-wrap .swiper-button-next::after,
.detail-wrap .swiper-button-prev::after {
    display: none;
}
/*************** 태블릿 ***************/
@media (min-width:768px) {
    .title-img-wrap {
        height: 15em;
    }
    .main-swiper > div > div {
        height: 22em;
    }
}
/*************** 데스크탑 ***************/
@media (min-width:992px) {
    .detail-wrap > div:first-child {
        border-top: none
    }
    .main-swiper > div > div {
        height: 40em;
    }
}