@media (min-width: 501px){
    .pcdn {
        display: none;
    }
}

@media screen and (max-width: 500px){
    img {
        width: 100%;
        height: auto;
    }
    #Wrapper {
        width: 100%;
        padding-right: 15px;
        padding-left: 15px;
        box-sizing: border-box;
    }

    #rdc h1 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    #rdc h2 {
        font-size: 18px;
    }
    .spdn {
        display: none;
    }
    .breadcrumbs {
        width: 100%;
        padding-right: 15px;
        padding-left: 15px;
        box-sizing: border-box;
    }
    .breadcrumbs ul li .spdn {
        display: none;
    }
    div.header {
        padding: 20px;
        padding-right: 0;
        padding-left: 0;
    }
    .item-title {
        font-size: 14px;
    }
    .section {
        padding-right: 0;
        padding-left: 0;
    }
    #CareerBox {
        float: none;
        width: 100%;
    }
    .col-left {
        float: none;
        width: 100%;
        margin-right: 0;
    }
    .item-rdc .item-date {
        font-size: 11px;
    }
    dl.kengaku dt {
        display: block;
        vertical-align: top;
    }
    dl.kengaku dd {
        display: block;
        vertical-align: top;
        text-align: left;
        width: 100%;
    }
    dl.kengaku dd figure {
        width: 80%;
        margin-top: 25px;
    }
    .kengaku_content {
        margin: 20px 0px;
    }
    #rdc_foot_nav2 dd ul li {
        display: block;
    }
    #rdc_foot_nav2 dd ul li+li {
        margin-top: 10px;
    }
}