html {
    font-size: 28px;
}
@media screen and (max-width: 960px) {
    html {
        font-size: 18px;
    }
}

body {
    margin: 0;
    padding: 0;
    background: #E8EAF2;
    color: #333;
    font-family: sans-serif;
    line-height: 1.5;
    text-align: justify;
}

* {
    box-sizing: border-box;
}

.top {
    background: #6679B4;
    padding: 20px;
    color: #fff;
}

.top a {
    color: #fff !important;
    text-decoration: none !important;
    font-weight: bold;
}
@media screen and (max-width: 480px) {
    .top p {
        display: none;
    }
}

.top .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.top h1 {
    display: block;
    font-size: 1px;
    color: rgba(255,255,255,0);
    height: 3rem;
    width: calc(3rem * 1135 / 266);
    background: center / contain no-repeat url(./images/logo.png);
}

.top p {
    margin: 0;
}

article {
    padding: 2rem 3rem;
}

footer {
    padding: 0 3rem 5rem;
}

@media screen and (max-width: 800px) {
    article {
        padding: 2rem 20px;
    }

    footer {
        padding: 0 20px 5rem;
    }
}

section, footer p {
    max-width: 960px;
    margin: 0 auto;
}

a {
    color: #6679B4;
    text-decoration: none;
}

.footer p {
    text-indent: -0.5em;
}

.notification h2 {
    border-bottom: 1px #6679B4 solid;
    color: #6679B4;
    text-align: center;
    margin: 0 0 1em 0;
    padding-bottom: 0.1em;
    font-size: 2rem;
    font-weight: bold;
}

.banner {
    position: relative;
    width: 100%;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    background-image: url(./images/banner-7.png), url(./images/banner-1.png), url(./images/banner-2.png), url(./images/banner-3.png), url(./images/banner-4.png), url(./images/banner-5.png), url(./images/banner-6.png);
    animation: banner_anime 40s ease;
    animation-fill-mode: forwards;
    animation-delay: 2s;
    animation-iteration-count: infinite;
    font-size: 1px;
    color: rgba(255,255,255,0);
}
.banner::before {
    content: "";
    display: inline-block;
    padding-top: calc(321 / 636 * 100%);
}

@keyframes banner_anime {
    12% {
        background-image: url(./images/banner-1.png);
    }
    20% {
        background-image: url(./images/banner-1.png);
    }
    24% {
        background-image: url(./images/banner-2.png);
    }
    32% {
        background-image: url(./images/banner-2.png);
    }
    36% {
        background-image: url(./images/banner-3.png);
    }
    44% {
        background-image: url(./images/banner-3.png);
    }
    48% {
        background-image: url(./images/banner-4.png);
    }
    56% {
        background-image: url(./images/banner-4.png);
    }
    60% {
        background-image: url(./images/banner-5.png);
    }
    68% {
        background-image: url(./images/banner-5.png);
    }
    72% {
        background-image: url(./images/banner-6.png);
    }
    80% {
        background-image: url(./images/banner-6.png);
    }
    84% {
        background-image: url(./images/banner-7.png);
    }
    100% {
        background-image: url(./images/banner-7.png);
    }
}