body {
    font-family: "-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji";
    font-size: 16px;
}

div,
table {
    margin: 0;
}

body {
    margin: 0 auto;
    max-width: 960px;
    padding: 10px;
    color: #333;
}

p {
    margin: 0.5em 0;
}

header {
    margin: 0;
    padding: 0;
    border-bottom: 1px solid #999;
    line-height: 1
}

header h1 {
    font-size: 160%;
}

header h2 {
    font-size: 120%;
}

footer {
    margin: 0;
    padding: 10px 0;
    border-top: 1px solid #999;
    line-height: 1;
    text-align: center
}

article h1 {
    line-height: 2;
    font-size: 160%
}

article h2 {
    line-height: 1.6;
    font-size: 120%
}

article h3,
article h4,
article h5,
article h6 {
    line-height: 1.2;
    font-size: 100%
}

img {
    margin: 10px auto;
    width: 90%;
    max-width: 600px;
    padding: 0 10px;
    height: auto;
    display: block
}

hr {
    border: none;
    border-top: 1px dashed #999;
    color: #fff;
    background-color: #fff;
    height: 1px
}

a {
    color: #00f;
    word-wrap: break-word
}

a:visited {
    color: #009
}

a:hover {
    color: #f80;
}

header a,
header a:visited,
footer a,
footer a:visited,
h1 a,
h1 a:visited,
h2 a,
h2 a:visited,
h3 a,
h3 a:visited,
h4 a,
h4 a:visited,
h5 a,
h5 a:visited,
h6 a,
h6 a:visited {
    text-decoration: none;
    color: #333;
}

header a:hover,
footer a:hover,
h1 a:hover,
h2 a:hover,
h3 a:hover,
h4 a:hover,
h5 a:hover,
h6 a:hover {
    text-decoration: none;
    color: #f80;
}

a.external {
    background-image: url("/images/external-link-icon.svg");
    background-position: center right;
    background-repeat: no-repeat;
    padding-right: 13px;
}

header nav {
    padding: 10px 0;
    text-align: right;
}

header nav a {
    padding-left: 15px;
}

table {
    border-collapse: collapse;
    font-size: .8em;
    margin: 10px auto
}

th,
td {
    border: 1px solid gray;
    padding: 2px 5px
}

code {
    border: 1px dotted #999;
    background-color: #f0f0f0;
    padding: 1px 2px;
    line-height: 200%;
    word-wrap: break-word
}

pre {
    border: 1px solid #999;
    background-color: #f0f0f0;
    padding: 5px;
    overflow: auto
}

pre code {
    border: 0;
    background: none;
    padding: 0;
    font-size: .8em
}

blockquote {
    margin: 0;
    padding: 0 0 0 20px;
    border-left: solid 5px #ccc;
    font-size: .8em
}

ul.pagination {
    list-style-type: none;
    text-align: center
}

li.page-item {
    display: inline;
    padding-right: 15px
}

svg.permalink {
    color: #666;
    fill: currentColor
}

svg:hover.permalink {
    color: #f00;
    fill: currentColor
}

.title {
    padding: 0;
    margin: 20px 0
}

.meta,
.content {
    padding: 0;
    margin: 10px 0
}

.tag {
    display: inline-block;
    margin-right: 10px;
}

nav#TableOfContents {
    float: right;
    width: 200px;
    overflow: auto;
    margin: 0;
    padding: 0 10px;
    vertical-align: top;
}

nav#TableOfContents:before {
    content: 'Content';
    font-weight: bold;
}

nav#TableOfContents:lang(*-Hans)::before {
    content: '目录';
    font-weight: bold;
}

nav#TableOfContents ul {
    margin: 0;
    padding-inline-start: 24px;
}

.content-with-toc {
    width: calc(100% - 220px);
    margin: 0;
}

@media (max-width:500px) {
    nav#TableOfContents {
        float: none;
        width: 100%;
    }

    .content-with-toc {
        width: 100%;
    }
}

.title h1,
.title h2 {
    padding: 0
}

.meta div {
    padding: 0
}

.content h1 {
    padding: 0;
    margin: 25px 0 0
}

.content h2 {
    padding: 0;
    margin: 20px 0 0
}

.content h3 {
    padding: 0;
    margin: 20px 0 0
}

.content h4 {
    padding: 0;
    margin: 15px 0 0
}

.content h5 {
    padding: 0;
    margin: 10px 0 0
}

.content h6 {
    padding: 0;
    margin: 10px 0 0
}

.content p {
    padding: 0;
    margin: 10px 0
}

.article-list li {
    margin-bottom: 0.5em;
}

.article-list li .article-date,
.article-list li .article-title {
    display: inline-block;
}

.article-list li .article-date:after {
    content: ' - ';
}

@media (max-width:500px) {

    .article-list li .article-date,
    .article-date li .article-title {
        display: block;
    }

    .article-list li .article-date:after {
        content: '';
    }
}