@media (max-width: 640px){
    footer#footer-main{
        padding:80px 0 240px;
        background: repeat-x left -800px bottom 50px url(../../images/footer_wave_blue.svg), repeat-x left -568px bottom 30px url(../../images/footer_wave_white.svg) #397BDF;
    }
    
    footer#footer-main a#logo-f{
        width:120px;
    }
    
    footer#footer-main p.txt-top{
        display: none;
    }
    
    footer#footer-main ul.nav-f{
        margin-top:40px;
        grid-template-columns: 1fr;
        gap: 30px;
    }

    footer#footer-main div div.upper {
        display: block;
    }

    footer#footer-main div div.upper div.logo-area {
        margin: 0 auto;
    }

    footer#footer-main div div.upper nav ul.nav-f {
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    footer#footer-main div div.upper nav ul.nav-f li {
        text-align: center;
    }

    footer#footer-main div.contact{
        margin-top:30px;
        flex-direction: column;
        text-align: center;
        padding:30px 20px;
    }

    footer#footer-main div.contact p.contact_txt-time{
        font-size:0.875rem;
        margin-bottom:10px;
    }


    footer#footer-main div.copyright{
        margin-top: 40px;
        flex-direction: column;
        font-size: 0.75rem;
        text-align: center;
    }

    footer#footer-main div.copyright ul{
        flex-direction: column;
        align-items: center;
        gap:8px;
        margin-bottom:40px;
    }

    footer#footer-main div.copyright ul li:not(:last-child)::after{
        height:16px;
    }

    footer#footer-main div p.copy {
        font-size: 1.375rem;
        font-weight: bold;
        white-space: nowrap;
        position: absolute;
        right: -2px;
        bottom: -2px;
    }
}