* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
}

body {
    background: #ffffff;
    overflow-x: hidden;
}

.about-page {
    width: 100%;
    display: flex;
    justify-content: center;
}

.exam-page {
    position: relative;
    width: 100%;
    max-width: 760px;
}

.exam-page-image {
    width: 100%;
    height: auto;
    display: block;
}

.social-link {
    position: absolute;
    display: block;
    cursor: pointer;
    height: 35px;
    z-index: 10;
    transition: transform 0.18s ease;
}

.youtube-link {
    left: 10%;
    top: 12%;
    width: 10%;
}

.instagram-link {
    left: 10%;
    top: 43%;
    width: 10%;
}

.social-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 1px;
    width: 0;
    height: 1.5px;
    background: #222;
    transform: translateX(-50%);
    transition: width 0.18s ease;
}

.youtube-link:hover::after {
    width: 56%;
}

.instagram-link:hover::after {
    width: 62%;
}

.social-link:hover {
    transform: translateY(-1px);
}

/* 밑줄 위치 미세 조정 */
.instagram-link::after {
    left: 60%;
}

.youtube-link::after {
    left: 53%;
}