.page-id-314 .c-page-header {
    display: none;
}

.course-box-hover {
    position: relative;
    background-image: linear-gradient(to top, #ddd 0%, #ddd 100%);
    background-size: 100% 0%;
    background-position: bottom left;
    background-repeat: no-repeat;
    transition: background-size .3s ease, box-shadow .3s ease;
}

.course-box-hover:hover {
    background-size: 100% 100%;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.1);
}

/* 共通スタイル */
.corner-brackets-gray {
    position: relative;
    height: 100%;
}

.corner-brackets-gray::before,
.corner-brackets-gray::after,
.corner-brackets-gray .smb-box__background::before,
.corner-brackets-gray .smb-box__background::after {
    content: "";
    position: absolute;
    width: 25px;
    /* コーナー線の長さ */
    height: 25px;
    border: 1px solid var(--s-color-2fbe8c62);
}

/* 左上 */
.corner-brackets-gray::before {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

/* 右上 */
.corner-brackets-gray::after {
    top: 0;
    right: 0;
    border-left: none;
    border-bottom: none;
}

/* 左下 */
.corner-brackets-gray .smb-box__background::before {
    bottom: 0;
    left: 0;
    border-right: none;
    border-top: none;
}

/* 右下 */
.corner-brackets-gray .smb-box__background::after {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}