/*
 * general
 */

:root {
  font-size: 16px;
  font-family: "FZLanTingHei", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Hiragino Kaku Gothic Pro", Meiryo, "Malgun Gothic", sans-serif;
  box-sizing: border-box;
}

body {
  font-size: 1.25rem;
}

code {
  font-size: 1.25rem;
  margin-left: 0.25rem;
  margin-right: 0.25rem;
}

.link-disabled {
  pointer-events: none;
}

.progress-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background-color: #ffdd57;
}


/*
 *  navbar
 */

.navbar {
  background-color: #3273dc;
  color: #FFF;
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 3.3125rem;
  padding-bottom: 0;
  margin-right: 0;
  margin-top: 0;
  margin-bottom:0;
}

.logo {
  margin-top: 0.3rem;
  margin-left: 1rem;
}

.logo a {
  color: #FFF;
}

.logo a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.site-title {
  text-align: center;
}


/*
 * book-toc
 */

.book-toc {
  position: fixed;
  top: 3.3125rem;
  right: 0;
  opacity: 0.9;
  transition: all 1s;
  color: rgba(0, 0, 0, 0.4);
  line-height: 2;
  height: 75vh;
  width: 20rem;
  overflow: scroll;
  z-index: 9;
}

.book-toc h3 {
  margin-bottom: 1.5rem;
}

.book-toc a {
  color: rgba(0, 0, 0, 0.7);
}

.book-toc a:hover {
  color: rgba(0, 0, 0, 0.9);
  text-decoration: underline;
}

.book-toc .chapter-item-current a {
  color: #ff3860;
  font-weight: 700;
}

.book-toc ul {
  margin-top: 0;
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.book-toc ul.chapter-area {
  counter-reset: chapter;
}

.book-toc ul.chapter-area > li {
  list-style-type: none;
}

.book-toc ul.chapter-area > li::before {
  counter-increment: chapter;
  content: counter(chapter) ". ";
}

.book-toc ul.chapter-level-1 {
  counter-reset: article;
}

.book-toc ul.chapter-level-1 > li {
  list-style-type: none;
}

.book-toc ul.chapter-level-1 > li::before {
  counter-increment: article;
  content: counter(chapter) "." counter(article) " ";
}

.book-toc .icon-expand {
  width: 18px;
  height: 18px;
  content: url(expand.svg);
}

.book-toc .icon-collapse {
  width: 18px;
  height: 18px;
  content: url(collapse.svg);
}


/*
 * content
 */

.content {
  background-color: #FFF;
  color: #333;
  margin-top: 3.3125rem;
  padding-left: 1rem;
  padding-right: 1rem;
  line-height: 1.6;
}

.breadcrumb-area {
  padding-top: 1rem;
}

h1.article-title {
  margin-bottom: 3rem;
}

.sticky {
  bottom: 0px;
  position: fixed;
  margin-left: 0;
  margin-right: 0;
  padding-left: 0;
  padding-right: 0;
  padding-bottom: 0px;
  margin-bottom: 0px;
}

.article-bar {
  margin-top: 3rem;
  padding-top: 1rem;
  margin-left: -10px;
  margin-right: -10px;
  border-top: 1px solid #bdc3c7;
  position: -webkit-sticky;
  position: sticky;
  bottom: 0;
  background: white;
}

.article-bar .icon-next {
  content: url(next.svg);
}

.article-bar .icon-previous {
  content: url(previous.svg);
}

.article-bar .icon-up {
  content: url(up.svg);
}

.article-bar .icon-size {
  content: url(size.svg);
}

.article-bar .icon-toc {
  content: url(toc.svg);
}

.article-bar .icon-previous-disabled {
  content: url(previous-disabled.svg);
}

.article-bar .icon-next-disabled {
  content: url(next-disabled.svg);
}

.article-bar .level-item .link-content {
  display: none;
}


/*
 * article
 */

.article {
  counter-reset: firstLevelTitle;
}

.article > h2::before {
  counter-increment: firstLevelTitle;
  content: counter(firstLevelTitle) '. ';
}

.article > h2:only-of-type::before {
  content: '';
}

.article > h2 {
  counter-reset: secondLevelTitle;
}

.article > h3::before {
  counter-increment: secondLevelTitle;
  content: counter(firstLevelTitle) '.' counter(secondLevelTitle) ' ';
}

.article .first-level-collapse {
  display: none;
}

/*
 * article-toc
 */

.article-toc {
  border: 1px solid #aaa;
  background-color: #f9f9f9;
  display: table;
  padding: 1rem;
}

.article-toc ul {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.article-toc > ul {
  counter-reset: articleTOCFirstLevel;
}

.article-toc > ul > li {
  list-style-type: none;
  counter-reset: articleTOCSecondLevel;
}

.article-toc > ul > li::before {
  counter-increment: articleTOCFirstLevel;
  content: counter(articleTOCFirstLevel) '. ';
}

.article-toc > ul > li > ul > li {
  list-style-type: none;
}

.article-toc > ul > li > ul > li::before {
  counter-increment: articleTOCSecondLevel;
  content: counter(articleTOCFirstLevel) '.' counter(articleTOCSecondLevel) ' ';
}


/*
 * foot
 */

.foot {
  background-color: #FFF;
  border-top: 1px solid #bdc3c7;
  color: #b86bff;
  font-size: 0.9rem;
}

.columns.foot {
  margin-bottom: 0;
}

.build-by {
  margin-left: 1rem;
}


/*
 * highlight
 */

.hljs {
  margin-bottom: 1rem;
  border-radius: 0.5rem;
  overflow: auto;
}

.hljs code {
  background: #23241f;
  color: #f8f8f2;
}

/*

Monokai Sublime style. Derived from Monokai by noformnocontent http://nn.mit-license.org/

*/

.hljs {
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  background: #23241f;
}

.hljs,
.hljs-tag,
.hljs-subst {
  color: #f8f8f2;
}

.hljs-strong,
.hljs-emphasis {
  color: #a8a8a2;
}

.hljs-bullet,
.hljs-quote,
.hljs-number,
.hljs-regexp,
.hljs-literal,
.hljs-link {
  color: #ae81ff;
}

.hljs-code,
.hljs-title,
.hljs-section,
.hljs-selector-class {
  color: #a6e22e;
}

.hljs-strong {
  font-weight: bold;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-name,
.hljs-attr {
  color: #f92672;
}

.hljs-symbol,
.hljs-attribute {
  color: #66d9ef;
}

.hljs-params,
.hljs-class .hljs-title {
  color: #f8f8f2;
}

.hljs-string,
.hljs-type,
.hljs-built_in,
.hljs-builtin-name,
.hljs-selector-id,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-addition,
.hljs-variable,
.hljs-template-variable {
  color: #e6db74;
}

.hljs-comment,
.hljs-deletion,
.hljs-meta {
  color: #75715e;
}