.d-flex {
    display: flex;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.d-flex > *:nth-child(2) {
    margin-left: 40px;
}

section {
    margin: 90px auto 30px;
}

h2 {
    color: #0d427c;
    font-size: 30px;
    letter-spacing: 4px;
    font-family: "Times New Roman", "YuMincho", "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
}

p.description {
    line-height: 260%;
    margin-top: 40px;
    margin-bottom: 40px;
}

nav {
    position: fixed;
    z-index: 5;
    width: 100%;
}

header {
    position: relative;
}

img.logo {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 1;
}

.top-slider, .slick-list, .slick-track {
    /*height: 812px;*/
}

.slick-track img {
    /*object-fit: cover;*/
    object-fit: contain;
    object-position: top center;
}

.sns-box {
    position: absolute;
    top: 30px;
    right: 10px;
}

.sns-box i {
    font-size: 25px;
    color: #0d427c;
    margin-right: 20px;
}

.desc-container {
    max-width: 1000px;
    margin: 30px auto 30px;
    display: flex;
}

.desc-container > *:nth-child(2) {
    margin-left: 40px;
}

.desc-container img {
    object-fit: contain;
}

.guide-button {
    border: 1px solid #707070;
    border-radius: 10px;
    padding: 10px 30px;
    font-size: 14px;
    text-decoration: none;
    color: #707070;
    transition: 0.2s;
}

.guide-button:hover {
    opacity: 0.7;
}

footer .copyright {
    line-height: 45px;
    font-size: 12px;
    color: white;
    text-align: center;
    margin-bottom: 0;
}

footer {
    background-color: #0d427c;
}

.news-container {
    background: #f9f8f6;
    padding: 30px 0;
    margin-top: 10px;
}

.news-box {
    padding: 10px;
    max-width: 1000px;
    background: #fff;
    margin:  30px auto;
}

.news-box li {
    padding: 5px;
}

li .news-date {
    font-weight: 700;
    color: #09427c;
    line-height: 1.8;
}

iframe {
    max-width: 1000px;
    margin: 10px auto;
}

@media (max-width: 768px) {
    .top-slider, .slick-list, .slick-track {
        /*height: 312px;*/
        /*height: 248px;*/
        height: auto;
    }

    img.logo {
        width: 95px;
    }

    .sns-box {
        top: 14px;
        right: 0;
    }

    section {
        margin-top: 20px;
    }

    .desc-container {
        flex-direction: column;
        padding: 0 15px 15px;
        /*margin-top: -35px;*/

    }

    main section:nth-of-type(2) .desc-container {
        margin-top: 50px;
    }

    .desc-container img {
        width: 100%;
        margin: 20px auto;
    }

    .desc-container > *:nth-child(2) {
        margin-left: 0;
    }

    p.description {
        margin-bottom: 10px;
    }

    iframe {
        padding: 15px;
        box-sizing: border-box;
    }
}