html {
    font-family: sans-serif;
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    height: 100%;
}

body {
    margin: 0;
    background-image: linear-gradient(#d4d4d4 1px, transparent 0),
    linear-gradient(90deg, #d4d4d4 1px, transparent 0);
    background-size: 32px 32px;
    background-color: #fffcf8;

    border: 0;
    font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC,
    Microsoft YaHei, Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Micro Hei,
    sans-serif;
    font-size: small;
    line-height: 1.5em;
    height: 100%;
}

a {
    text-decoration: none;
    color: #555;
}

a:hover {
    color: #333;
}

.header {
    background-color: #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    transition: background-color 0.5s;
}

.navbar {
    padding: 0;
    display: flex;
    width: 1080px;
    margin: auto;
    height: 40px;
}

.navbar .brand {
    display: flex;
    align-items: center;
    color: #555;
}

.brand .logo {
    max-width: 36px;
}

.brand .title {
    margin-left: 5px;
    font-family: helvetica neue, helvetica, arial, sans-serif;
    font-size: 24px;
    font-weight: 700;
}

.beta {
    color: #ccc;
    font-size: 11px;
    font-weight: 400;
    position: relative;
    top: -12px;
}


.copyright {
    text-align: center;
    color: #999;
    padding: 5px 0;
}
