@media (max-width:280px) {
    /* body */
    body{
        margin: 0;
        padding: 0;
        overflow-x: hidden;
        max-width: 100%;
    }

    /* ヘッダー */
    header{
        position: fixed;
        top: 0;
        z-index: 999;
        width: 100%;
        height: 34px;
        background-color: white;
        box-shadow: 0 0 8px gray;
    }
    #Genie_header{
        display: flex;
        justify-content: space-between;
    }
    #Genie_header h1{
        margin: 8% 0 2% 20%;
        font-family: serif;
        font-size: 18px;
    }
    /* ハンバーガーメニュー */
    .hamburger{
        width: 16px;
        height: 10px;
        position: relative;
        margin: 0 0 0 auto;
        top: 12px;
        right: 4%;
    }
    .hamburger span{
        margin: 0;
        position: absolute;
        width: 100%;
        height: 1px;
        background-color: black;
        border-radius: 15px;
    }
    .hamburger span:first-of-type{
        top: 0;
    }
    .hamburger span:nth-of-type(2){
        top: 50%;
    }
    .hamburger span:last-of-type{
        top: 100%;
    }
    /* /ここまでハンバーガーメニュー */
    #header_list{
        display: block;
        position: fixed;
        top: 34px;
        width: 100%;
        height: 160px;
        left: 0;
        text-align: center;
        background-color: #1a1a1a;
        padding: 0;
        margin: 0;
        transform: translateX(100%);
        transition: .5s;
        list-style: none;
    }
    #header_list a{
        font-size: 10px;
        font-family: serif;
        color: #ccc;
        line-height: 400%;
        padding: 0;
        text-decoration: none;
    }
    #header_list a:hover{
        text-decoration: underline;
        color: white;
    }
    .hamburger.active span:first-of-type{
        top:50%;
        transform: rotate(405deg);
        transition: .5s;
    }
    .hamburger.active span:nth-of-type(2){
        opacity: 0;
    }
    .hamburger.active span:last-of-type{
        top:50%;
        transform: rotate(-405deg);
        transition: .5s;
    }
    #header_list.active{
        transform: translateX(0);
        transition: .5s;
    }

    /* PrivacyPolicy. */
    .maine{
        padding: 40px 16px;
    }
    .privacy_top h1{
        color: #54595f;
        font-size: 20px;
        font-family: sans-serif;
    }
    .privacy_top p{
        color: rgb(45, 45, 45);
        font-size: 12px;
        line-height: 24px;
        padding-bottom: 9%;
        font-family: sans-serif;
        margin: 0 1%;
    }
    .privacy_article h2{
        color: rgb(45, 45, 45);
        font-size: 16px;
        font-family: sans-serif;
        border-left: 7px solid #b5b5b5;
        border-right: 1px solid #b5b5b5;
        border-top: 1px solid #b5b5b5;
        border-bottom: 1px solid #b5b5b5;
        padding: 8px 14px;
    }
    .privacy_article p{
        color: rgb(45, 45, 45);
        font-size: 12px;
        line-height: 24px;
        padding-bottom: 6%;
        font-family: sans-serif;
        margin: 0 1%;
    }
    .privacy_article_last p{
        color: rgb(45, 45, 45);
        font-size: 12px;
        font-family: sans-serif;
        display: flex;
        justify-content: end;
        margin-right: 1%;
    }


    /* フッター */
    footer{
        background-color: #1a1a1a;
        display: flex;
        flex-flow: column;
        justify-content: center;
        align-items: center;
        margin-bottom: 0;
    }
    .footer_item{
        display: flex;
        justify-content: space-between;
        padding-top: 6%;
        padding-bottom: 4%;
        width: 100%;
    }
    .footer_item01 a,
    .footer_item02 a{
        display: flex;
        color: #ccc;
        font-family: serif;
        font-size: 8px;
        text-decoration: none;
    }
    .footer_item01{
        margin-left: 12%;
    }
    .footer_item02{
        margin-right: 12%;
    }
    .footer_item03{
        display: flex;
        margin-bottom: 2%;
    }
    .footer_item a{
        text-decoration: none;
        padding-bottom: 6%;
    }
    .footer_item a:hover{
        text-decoration: underline;
        color: white;
    }
    footer h4{
        color: #ccc;
        font-family: serif;
        font-size: 8px;
        transform: scale(0.8);
        transform-origin: center;
    }
}