@media all and (orientation: landscape) {
    div.landport {
        /* 横向き専用の追加装飾 */
    }

    html,
    body {
        margin: 0;
        padding: 0;
        height: 100%;
    }

    body {
        background-image: url(img/BG1.jpg);
        background-position: center center;
        background-repeat: no-repeat;
        background-attachment: fixed;
        background-size: cover;
        background-color: beige;
        margin: 0;
        font-size: 14px;
    }

    header {
        background: rgba(115, 190, 150, 1.0);
        height: 80px;
    }

    main {
        margin: 0 auto;
        padding-top: 0px;
        height: 94vh;
    }

    footer {
        width: 100%;
        position: fixed;
        bottom: 0;
        height: 110px;
        background: rgba(115, 190, 150, 1.0);
        color: #fff;
        font-size: 11px;
        font-weight: 500;
        text-align: center;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        grid-template-rows: repeat(1, 1fr);
        grid-column-gap: 5px;
        grid-row-gap: 0px;
        max-width: 900px;
        height: 100%;
        margin: 0 auto;
    }

    .main-contents {
        width: 100%;
        text-align: center;
    }

    .main-contents-grid {
        display: grid;
        grid-template-columns: repeat(10, 1fr);
        grid-template-rows: repeat(1, 1fr);
        grid-column-gap: 5px;
        grid-row-gap: 0px;
        max-width: 1000px;
        height: 100%;
        margin: 0 auto;
        padding: 10px;
    }

    .left-side {
        grid-column: 1 / 7;
        grid-row: 1 / 2;
    }

    .left-side-grid {
        display: grid;
        grid-template-columns: repeat(8, 1fr);
        grid-template-rows: repeat(4, 1fr);
        grid-column-gap: 5px;
        grid-row-gap: 5px;
        max-width: 1000px;
        margin: 0 auto;
    }

    .right-side {
        grid-column: 7 / 11;
        grid-row: 1 / 2;
    }

    .right-side-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        grid-template-rows: repeat(4, 1fr);
        grid-column-gap: 5px;
        grid-row-gap: 5px;
        margin: 0 auto;
    }

    .title {
        grid-column: 1 / 9;
        grid-row: 1 / 4;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .comment {
        grid-column: 3 / 9;
        grid-row: 4 / 5;
        font-size: 18px;
        line-height: 30px;
        font-weight: 600;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: left;

    }

    .facebook {
        grid-column: 1 / 6;
        grid-row: 1 / 4;
        margin: 10px auto;
        border: 2px solid #ccc;
    }

    .menu-01 {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-02 {
        grid-column: 2;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-03 {
        grid-column: 3;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-04 {
        grid-column: 4;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-05 {
        grid-column: 5;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-06 {
        grid-column: 6;
        grid-row: 1;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .btn-circle-border-double {
        display: inline-block;
        text-decoration: none;
        color: #fff;
        width: 80px;
        height: 80px;
        line-height: 80px;

        border-radius: 50%;
        border: double 4px #fff;
        text-align: center;
        overflow: hidden;
        transition: .6s;
    }

    .btn-circle-border-double:hover {
        -webkit-transform: rotateY(360deg);
        transform: rotateY(360deg);
    }

    .fade-2 {
        border-width: 0 0 1px;
        border-image: linear-gradient(90deg,
                hsla(0, 0%, 100%, 0),
                hsla(0, 0%, 100%, 0.5) 50%,
                hsla(0, 0%, 100%, 0) 100%) 0 0 100%;
        border-style: solid;
    }