html,
body {
    margin: 0;
    padding: 0;
    background: #070707;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: top;
}

a {
    display: block;
    width: 90%;
    height: 50px;
    line-height: 50px;
    margin: 30px auto 10px;
    background-color: #004fff;
    color: #fff;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: 600;
}

a:hover {
    background-color: #008bff;

}

.backdetail {
    background-color: #000;
    margin-bottom: 60px;
}

.backdetail:hover {
    background-color: #111;

}

main {
    margin: 0 auto;
    max-width: 640px;
    width: 100%;
}

.link {
    margin: 10px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.link a {
    display: block;
    width: 48%;
    text-align: center;
    text-decoration: none;
    height: 44px;
    line-height: 44px;
    /* border: 1px solid #202f41; */
    color: #0070ff;
    margin-bottom: 10px;
    border-radius: 4px;
    background-color: #081521;
    color: #abafbf;
    font-weight: 400;
}

.link a:hover {
    background-color: #182633;
}

.link a.booklive {
    width: 90%;
    background-color: #ff5a00;
    color: #fff;
    border: 1px solid #ff5a00;
    height: 52px;
    line-height: 50px;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 0px;
}

.link a.booklive span {
    color: #ffff00;
}

.link a.booklive:hover {
    background-color: #ff8100;
}

.link a.preread {
    width: 100%;
    background-color: #005cff;
    color: #fff;
    border: 1px solid #125179;
    height: 52px;
    line-height: 50px;
    font-size: 18px;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    padding: 0 16px;
}

.link a.preread span {
    color: #ffff00;
    font-weight: 700;
}

.link a.preread:hover {
    background-color: #0088ff;
}

.tate {
    margin: 48px 0;
    text-align: center;
}

.tate h3 {
    color: #fff;
}

.tate .link {
    width: 90%;
    margin: 0px auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.tate .link a {
    display: block;
    width: 48%;
    text-align: center;
    text-decoration: none;
    height: 44px;
    line-height: 44px;
    /* border: 1px solid #202f41; */
    color: #0070ff;
    margin-bottom: 10px;
    border-radius: 4px;
    background-color: #081521;
    color: #fff;
    font-weight: 400;
    margin: 0px auto 10px;
    font-size: 15px;
}

.tate .link a:hover {
    background-color: #182633;
}