*[lang="en"] {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}

*[lang="zh-Hans"] {
    font-family:
        "PingFang SC",
        -apple-system,
        BlinkMacSystemFont,
        sans-serif;
}

body {
    font-size: 13px;
}

h2 {
    border-bottom: 1px solid #575186;
    font-size: 1.8rem;
    margin: 0.2em 0 0.8em 0;
}

h4 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.75rem 0;
}

h5 {
    font-size: 1rem;
    margin: 0;
}

img {
    max-width: 100%;
}

code {
    background: rgba(0, 0, 0, 0.05);
}

pre {
    padding: 10px;
    background: rgba(0, 0, 0, 0.05);
    color: #222;
    overflow-x: auto;
}

.img-c {
    display: block;
    margin: 0 auto;
}

.img-c + .img-c {
    margin-top: 0.5em;
}

.alert {
    border-radius: 4px;
    background: #ddd;
    margin: 1em 0;
    padding: 1em;
}

.alert.alert-important {
    font-weight: bold;
    background: #c44;
    color: #fff;
}

.alert.alert-important a {
    color: #fff;
}

ul.fl {
    padding: 0;
    list-style: none;
}

.fl > li:not(:first-child) {
    margin-top: 0.5em;
}

.fl > li:before {
    display: inline-block;
    text-align: center;
    color: #fff;
    margin-right: 0.75em;
    padding: 0.1em 0;
    font-size: 0.8em;
    font-weight: bold;
    border-radius: 3px;
}

.fl > li.n:before {
    content: "NEW";
    background: green;
    width: 3.5em;
}

.fl > li.f:before {
    content: "FIX";
    background: orange;
    width: 3em;
}

.fl > li.e:before {
    content: "IMPROVE";
    background: blueviolet;
    width: 6em;
}

.fl > li.u:before {
    content: "UPDATE";
    background: gray;
    width: 5.5em;
}

.fl p {
    margin: 0.5em 0;
    font-size: 12px;
    color: #777;
}

.fl p a {
    color: #666;
}

.fold-label {
    cursor: pointer;
    color: #777;
}

.fold-label:before {
    content: "▶︎ ";
}

.fold-box {
    display: none;
}

.fold-box + .fold {
    display: none;
}

.fold-box:checked + .fold {
    display: block;
}