html,
body {
    color: #fff;
    font-weight: lighter;
    font-family: 'Microsoft YaHei Light', sans-serif;
}

#gbg {
    background-color: #00000080;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    width: 100%;
    height: max-content;
}

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

a:hover {
    color: #fff;
    text-decoration: underline;
}

.title_l {
    font-size: 3em;
    font-weight: lighter;
    text-align: center;
    color: white;
}

.content {
    font-size: 1.2em;
    line-height: 1.5em;
    margin: 0 auto;
    max-width: 800px;
    text-align: left;
    font-weight: normal;
}

p {
    text-indent: 2em;
}

p.link {
    text-indent: 0;
}

hr.ch {
    width: 80%;
    color: #fff;
}

#callsign+style+hr {
    width: 99%;
}