@media screen and (max-width: 767px) {
    .pc {
        display: none !important;
    }

    .mb {
        display: inline !important;
    }

    html, body {
        font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    }

    /* ボディー
---------------------------------------------------------*/
    body {
        max-width: 100%;
        margin: 0px;
    }

    /* 　メインコンテンツ
------------------------------------------------------------*/
    .main {
        width: 95%;
        margin: 0 auto;
    }

    .update {
        color: gray;
        position: relative;
        text-align: right;
        margin-bottom: 20px;
    }

    .fas {
        padding-left: 5px;
        padding-right: 3px;
    }

    .display-none {
        display: none;
    }

    /* 　足跡
------------------------------------------------------------*/
    .footprints {
        width: 100%;
        color: gray;
        padding-top: 4px;
        padding-bottom: 2px;
        font-size: 0.8em;
    }

    .footprints ol {
        list-style: none;
        padding: 0px 0px 0px 5px;
    }

    .footprints li {
        float: left;
        padding-right: 5px;
    }

    .footprints a {
        color: gray;
        text-decoration: none;
    }

    .footprints a:hover {
        color: rgb(160, 160, 160);
    }

    /* 　メインコンテンツ
------------------------------------------------------------*/
    .top-menu-table {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        margin-bottom: 20px;
    }

    .menu-item {
        width: 120px;
        padding: 10px;
        border-radius: 10px;
        font-weight: bold;
        cursor: pointer;
        text-align: center;
        margin: 20px 5px 0 5px;
    }

    .item3 {
        background-color: orange;
        color: white;
    }

    .item2, .item1, .item4 {
        background-color: #f0f0f0;
        color: black;
    }

    .top-menu-table a {
        text-decoration: none;
    }

    /* ラッパー
---------------------------------------------------------*/
    .wrapper {
        width: 100%;
        margin: 0 auto;
        background-color: #f9f8f2;
        padding-bottom: 10px;
    }

    .eye-catch {
        display: block;
        margin-right: auto;
        margin-left: auto;
        width: 100%;
        height: auto;
    }


    /* 　section
------------------------------------------------------------*/
    .top-h1 {
        margin: 0 auto;
    }

    .sec-h1 {
        margin: 30px auto 10px;
        padding: 0 25px 20px 20px;
        display: inline-block;
        border-bottom: 1px solid gray;
        text-align: left;
        font-size: 18px;
    }

    /**img**/

    .banner {
        width: 50%;
        height: auto;
        margin: 0 auto 20px auto;
        display: block;
    }

    /**img**/

    .h1-p-table {
        margin: 30px auto;
        text-align: left;
    }

    h2 {
        text-align: left;
        margin: 70px auto 30px auto;
        display: block;
        border-bottom: 1px solid gray;
        width: 95%;
        font-size: 1.2em;
        padding-bottom: 5px;
    }

    h2::before {
        content: "";
        border-radius: 50%;
        border: 12px solid #696363;
        display: inline-block;
        vertical-align: middle;
        margin-right: 5px;
    }

    .contents-img {
        width: 90%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    h3 {
        text-align: left;
        display: inline-block;
        margin: 50px auto 0 auto;
        padding: 5px;
    }

    h3+div {
        margin: 10px auto;
        text-align: left;
    }

    /**表（table）**/
    table {
        margin: 0 auto 10px auto;
        background-color: white;
        width: 90%;
        border-collapse: collapse;
    }

    table tr:nth-child(2), tr:nth-child(4), tr:nth-child(6), tr:nth-child(8), tr:nth-child(10), tr:nth-child(12) {
        background-color: #efefef;
    }

    .tr-top th {
        text-align: center;
        font-weight: bold;
        font-size: 0.8em;
        padding: 10px;
    }

    .tr-child {
        padding: 10px;
        height: 30px;
    }

    .tr-child th {
        font-size: 0.75em;
    }

    tr {
        text-align: center;
    }

    td {
        font-size: 0.7em;
    }

    /**表（table）**/

    .rice {
        margin: 0 auto;
        width: 90%;
        font-size: 0.7em;
        color: #676767;
    }

    /* ふわふわ動くアニメーション
------------------------------------------------------------*/
    #fuwa {
        animation: 2s ease-in-out infinite cloud;
    }

    @keyframes cloud {
        0% {
            transform: translateY(-5%);
        }

        50% {
            transform: translateY(5%);
        }

        100% {
            transform: translateY(-5%);
        }
    }

    /* marker
------------------------------------------------------------*/
    .marker-pink {
        display: inline;
        position: relative;
        background-position: bottom left;
        background-image: linear-gradient(90deg, pink, pink);
        background-repeat: no-repeat;
        background-size: 0% 100%;
    }

    .marker-pink.markJs {
        animation: 1s marker ease-in-out forwards;
    }

    @keyframes marker {
        from {
            background-size: 0%;
        }

        to {
            background-size: 100%;
        }
    }

    .marker-blue {
        display: inline;
        position: relative;
        background-position: bottom left;
        background-image: linear-gradient(90deg, #b1dfe9, #b1dfe9);
        background-repeat: no-repeat;
        background-size: 0% 100%;
    }

    .marker-blue.markJs {
        animation: 1s marker ease-in-out forwards;
    }

    /* link
------------------------------------------------------------*/
    .link-table p>a {
        color: black;
    }

    .link-btn {
        display: block;
        text-align: center;
        text-decoration: none;
        width: 80%;
        margin: 30px auto 40px auto;
        padding: 1rem;
        font-weight: bold;
        color: white;
        transition: 0.5s;
        border-radius: 10px;
        font-size: 1em;
        background: #27acd9;
    }

    /* details＆summaryタグ
------------------------------------------------------------*/
    summary:hover {
        opacity: 0.5;
        cursor: pointer;
    }

    details[open] p {
        background: #ebebeb;
        padding: 10px;
        animation-duration: 0.5s;
        animation-name: anm1;
    }

    @keyframes anm1 {
        0% {
            opacity: 0;
        }

        100% {
            opacity: 1.0;
        }
    }
}