/* MCI Common Style */
@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@500;600;700&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-size: 12pt;
    font-family: "Inter", "IBM Plex Sans JP", sans-serif;
    color: #222222;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
video.bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: -1;
}
#top {
    display: block;
    transition: opacity 0.6s ease;
    position: fixed;
    width: 100vh;
    height: 100vh;
    overflow: hidden;
}
#about {
    posistion: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    backgrount: #FFFFFF;
    text-align: center;
    overflow-y: auto;
}
.hidden {
    opacity: 0;
    pointer-events: none;
}
.visible {
    opacity: 1;
    pointer-events: auto;
}
.overlay {
    position: fixed;
    top: 0; left: 0;
    width: 600px;
    height: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}
.overlay img {
    max-width: 160px;
    height: auto;
}
.centerColumnTitle {
    display: block;
    min-width: 280px;
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
    border-style: solid;
    border-color: #FFFFF;
    border-width: 0 20px;
    background: #222222;
    color: #FFFFFF;
}
.centerColumn {
    display: block;
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
    text-align: left;
}
 #top .copyright {
    position: fixed;
    bottom: 10px;
    width: 100%;
    text-align: center;
    color: #CCCCCC;
    font-weight: bold;
    font-size: 0.7em;
    z-index: 3;
}
.copyright {
    margin: 40px auto;
    text-align: center;
    color: #CCCCCC;
    font-weight: bold;
    font-size: 0.7em;
}
@media (max-width: 800px) {
    @keyframes sway {
        0%   { object-position: 80% center; }
        50%  { object-position: 200% center; }
        100% { object-position: 80% center; }
    }
    video.bg-video {
        width: 100vh;
        height: 70%;
        animation: sway 36s infinite ease-in-out;
    }
    .overlay {
        width: 100%;
        height: 30%;
        top: auto;
        bottom: 0;
        justify-content: center;
    }
}