* {
    padding: 0;
    margin: 0;
}

body,
html {
    width: 100%;
    height: auto;
    min-height: 100vh;
    font-size: 16px;
    background: #fff;
}

.head {
    width: 100%;
    height: auto;
    overflow: hidden;
    text-align: center;
}

.ban {
    display: block;
    height: auto;
    max-width: 100%;
    max-height: 50vh;
    margin: 0 auto;
}

.head span {
    display: inline-block;
    margin: 0 auto;
    padding: 0 30px;
    border: 1px solid #b2c5e6;
    color: #405783;
    border-radius: 25px;
    font-size: 1rem;
    line-height: 50px;
}

.linkbox {
    width: 100%;
    height: auto;
    padding-bottom: 20px;
    overflow: hidden;
    text-align: center;
}

.links {
    display: inline-block;
    margin: 30px;
    overflow: hidden;
    vertical-align: top;
}

.links a {
    display: block;
    line-height: 30px;
    font-size: 0.875em;
    text-decoration: none;
    color: #333;
}

.links a:hover {
    text-decoration: underline;
}

.links a:nth-child(1) {
    font-size: 1rem;
    line-height: 50px;
    font-weight: bold;
}
@media screen and (max-width: 800px) {
    .head span {
        padding: 0 20px;
        border-radius: 20px;
        font-size: 0.875rem;
        line-height: 40px;
    }
    .links {
        display: block;
        margin: 10px 0 0 0;
        overflow: hidden;
        border-bottom: 1px solid #e5e5e5;
    }
    .links a:nth-child(1) {
        line-height: 30px;
    }
}