/**
    teedoc light theme css
    @author neucrack
    @copyright (c) neucrack CZD666666@gmail.com with MIT License
    @changes 2021.1.26  add basic attrributes
 */

/* global template */
body {
    color: #606975;
    background-color: white;
    transition: 0.4s;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100vh;
    letter-spacing: 0.03em;
    font-family: "Microsoft YaHei",Helvetica,"Meiryo UI","Malgun Gothic","Segoe UI","Trebuchet MS",Monaco,monospace,Tahoma,STXihei,"华文细黑",STHeiti,"Helvetica Neue","Droid Sans","wenquanyi micro hei",FreeSans,Arimo,Arial,SimSun,"宋体",Heiti,"黑体",sans-serif;
}
a {
    color: #606975;
    text-decoration: none;
}
a:visited {
    color: #606975;
}
a:hover {
    background-color: #d8d8d8;
    border-radius: 5px;
    transition: 0.4s;
}
h1 {
    text-align: center;
    font-size: 2.2em;
}
h2 {
    font-size: 2em;
}
h3 {
    font-size: 1.5em;
}
h4 {
    font-size: 1.17em;
}
h5 {
    font-size: 1em;
}
h6 {
    font-size: 0.83em;
}

p {
    /* text-align: justify; */
    line-height: 2em;
}
blockquote {
    border-left: 4px solid #4caf7d;
    margin: 0 0 1em 2px;
    padding: 1px;
    padding-left: 1em;
    background-color: #f1f1f1;
    border-radius: 0 5px 5px 0;
    transition: 0.4s;
}
blockquote.spoiler {
    border-left: 5px solid #FF9800;
    background-color: #ffd65b;
}
*::-webkit-scrollbar {
    width : 0.8rem;
    height: 0.8rem;
    min-width: 0.8rem;
    min-height: 0.6rem;
}
#sidebar ul::-webkit-scrollbar {
    width : 0.45rem;
    height: 0.8rem;
    min-width: 0.45rem;
    min-height: 0.6rem;
}
*::-webkit-scrollbar-thumb {
    border-radius   : 0.6rem;
    background-color: #b8b8b8;
}
*::-webkit-scrollbar-track {
    background   : #ededed;
    border-radius: 10px;
}
sup a {
    font-size: 1.1em;
    background-color: #f1f1f1;
    padding: 4px;
    border-left: 1px solid #4caf7d;
    border-right: 1px solid #4caf7d;
}
dl > dt {
    font-weight: bold;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
    display: block;
    width: 100%;
    overflow: auto;
    word-break: keep-all;
    border-color: transparent;
}
tr {
    background-color: #f1f1f1;
    border-top: 1px solid #ccc;
}
td, th {
    padding: 6px 13px;
    transition: 0.4s;
}
th {
    font-weight: 700;
    color: white;
    filter: brightness(110%);
    border: 2px solid #4caf7d;
    background-color: #4caf7d;
}
td {
    background-color: #fbfbfb;
    border: 2px solid #f1f1f1;
}
code {
    background-color: #f1f1f1;
    border-radius: 0.2em;
    transition: 0.4s;
    font-family: Menlo, Consolas, "DejaVu Sans Mono", Bitstream Vera Sans Mono, Courier New, monospace, Monaco, 'Andale Mono', 'Ubuntu Mono', "Microsoft YaHei";
    font-size: 85%;
    padding: 0.2em 0.4em;
    color: #4caf7d;
}
pre[class*="language-"].line-numbers > code {
    background: none;
    padding: 0;
}
.btn,
#page_content .btn,
#content_body .btn {
    color: white;
    border-radius: 5px;
    transition: 0.2s;
    padding: 1em;
    cursor: pointer;
    transition: 0.2s;
    background: #4caf7d;
}
.btn:hover,
#page_content .btn:hover,
#content_body .btn:hover {
    background: #4caf7d;
    box-shadow: 1px 1px 5px 0px green;
}
.btn:visited,
#page_content .btn:visited,
#content_body .btn:visited {
    color: white;
}

/* wrapper */
.type_doc #wrapper {
    margin-top: 1.5em;
}
#wrapper {
    display: flex;
    flex-grow: 1;
}
#page_wrapper {
    display: flex;
    flex-grow: 1;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
}

/* page */
#page_content {
    width: 100%;
    flex-grow: 1;
    display: flex;
    flex-direction: row;
}
#page_content > div {
    flex-grow: 1;
    align-self: center;
}
#page_content a {
    color: #c33a3a;
}

/* navbar */
#navbar {
    display: flex;
    justify-content: start;
    z-index: 100;
}
#navbar * {
    display: flex;
    align-items: center;
}
#navbar_menu_btn {
    display: none;
}
#navbar #navbar_items {
    display: flex;
    flex-grow: 1;
    justify-content: space-between;
    padding-right: 1em;
    word-break: keep-all;
}
#navbar h2 {
    color: #4caf7d;
}
#navbar a{
    margin: 5px;
    padding: 10px 15px;
    cursor: pointer;
}
#navbar a.site_title{
    padding: 0;
}
#navbar a.site_title:hover{
    background-color: transparent;
}
#navbar .site_logo {
    max-height: 60px;
}
#navbar ul {
    list-style: none;
    padding-inline-start: 10px;
}
#navbar .sub_items {
    position: relative;
    display: block;
}
#navbar .sub_items > a {
    margin: 5px;
    padding: 10px 15px;
}
#navbar .sub_items > a:hover + ul {
    visibility: visible;
}
#navbar .sub_items ul {
    display: block;
    position: absolute;
    left: 0;
    box-shadow: 0 0 9px 0px #dadada;
    border-radius: 5px;
    padding: 0;
    width: max-content;
    min-width: 100%;
    background-color: white;
    visibility: hidden;
    margin-top: -5px;
    z-index: 101;
}
#navbar .sub_items ul:hover {
    visibility: visible;
}
#navbar .sub_items ul li {
    display: block;
}


/* sidebar */
#sidebar_wrapper {
    width: 300px;
}
/* sidebar splitter */
.gutter_icon {
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAeCAYAAADkftS9AAAAIklEQVQoU2M4c+bMfxAGAgYYmwGrIIiDjrELjpo5aiZeMwF+yNnOs5KSvgAAAABJRU5ErkJggg==);
    width: 3px;
    height: 2em;
    background-repeat: no-repeat;
    position: fixed;
    top: 50%;
}
.gutter {
    background-color: #eee;
    background-repeat: no-repeat;
    background-position: 50%;
    transition: 0.2s;
    border-radius: 5px;
    display: block;
}

.gutter.gutter-horizontal {
    /* background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAeCAYAAADkftS9AAAAIklEQVQoU2M4c+bMfxAGAgYYmwGrIIiDjrELjpo5aiZeMwF+yNnOs5KSvgAAAABJRU5ErkJggg=='); */
    cursor: col-resize;
}

#sidebar {
    /* width: 300px;
    min-width: 200px;
    position: sticky;
    top: 0;
    overflow-x: hidden; */
    /* min-width: 200px; */
    /* position: sticky; */
    /* top: 0; */
    /* overflow-x: hidden; */
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    padding-top: var(--ifm-navbar-height);
    /* width: var(--doc-sidebar-width); */
    transition: opacity 50ms;
    padding-top: 0;
    z-index: 1;
}
#sidebar ul {
    padding-inline-start: 20px;
    display: none;
}
#sidebar > ul {
    padding-inline-start: 0;
    padding: .5rem;
    display: block;
    padding-bottom: 3em;
    margin: 0;
    overflow-y: auto;
    overflow-x: hidden;
}
#sidebar ul .show{
    /* display: block; */ /* js instead, just reserve this item*/
}
#sidebar ul .active_parent {
    display: block;
}
#sidebar ul .active_parent > ul{
    display: block;
}
#sidebar ul.collapsed, #sidebar ul .active_parent > ul.collapsed{
    /* display: none; */  /* js instead, just reserve this item*/
}
#sidebar ul .active_parent > a{
    background-color: #f1f1f1;
    border-radius: 5px;
    transition: 0.4s;
}
#sidebar li {
    list-style: none;
    margin: 2px 0;
    position: relative;
}
#sidebar li > a {
    display: flex;
    justify-content: space-between;
    padding: 0;
    font-size: 0.9em;
}
#sidebar a:hover {
    cursor: pointer;
}
#sidebar .active > a, #navbar .active > a, #navbar .active_parent > a{
    background-color: #f1f1f1;
    border-radius: 5px;
    color: #4caf7d;
    transition: 0.4s;
}
#navbar .sub_items .active > a {
    transition: 0s;
}
#sidebar .active > a {
    transition: 0.4s;
}
#sidebar li > a > .label {
    padding: 10px;
    display: inline-block;
    white-space: nowrap;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}

#sidebar li > a:hover,
#sidebar li.active_parent > a:hover,
#navbar li > a:hover,
#navbar .sub_items > a:hover{
    background-color: #d8d8d8;
    border-radius: 5px;
    transition: 0.4s;
}
#sidebar .sub_indicator {
    transition: transform 0.4s linear;
    background: url("/static/image/theme_default/indicator.svg");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    align-self: center;
    height: 1.25rem;
    width: 1.25rem;
    -ms-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
    transition: 0.2s;
}

#sidebar .sub_indicator:hover,
#sidebar li.no_link > a:hover > .sub_indicator,
#sidebar li.no_link > a.sub_indicator:hover,
#sidebar li.no_link > a.sub_indicator{
    height: 1.6em;
    width: 1.6em;
}
#sidebar .sub_indicator_collapsed {
    -ms-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
}
#sidebar li.sidebar_category {
    font-size: 0.9em;
    color: #9e9e9e;
    margin: 1em 0 0.1em 0;
}
#sidebar .tip {
    position: fixed;
    color: white;
    left: 300px;
    top: 18%;
    box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.19);
    border-radius: 0.2em;
    padding: 1em;
    display: flex;
    flex-direction: column;
    width: max-content;
    transition: 0.4s;
    visibility: hidden;
    opacity: 0;
    background: #4caf7d;
}
#sidebar li > a:hover+.tip, #sidebar .tip:hover {
    visibility: visible;
    opacity: 1;
}
.blog_info > span {
    margin: 0.4em;
}
.blog_tags {
    text-align: center;
    margin-top: 1em;
}
.blog_tags > span {
    border-radius: 0.2em;
    padding: 0.2em;
    margin: 0.4em;
    filter: brightness(120%);
    border: 1px solid #4caf7d;
}
#blog_list > ul {
    padding-left: 0;
}
#blog_list > ul > li {
    list-style: none;
    box-shadow: 0px 0px 7px #00000033;
    margin: 2em 1em;
    padding: 2em;
    border-radius: 0.4em;
}
#blog_list > ul > li a, #blog_list > ul > li a:visited {
    padding: 0;
    color: #4caf7d;
}
html[lang^=zh] #article_content #blog_list h2:before {
    content: "";
}
#blog_list .blog_tags {
    text-align: left;
}
#blog_list .blog_info {
    color: #ababab;
}
#blog_list .blog_brief {
    color: #828282;
}
.blog_cover {
    text-align: center;
    margin-top: 1em;
}
.blog_cover > img {
    width: 100%;
}
#menu_wrapper {
    width: 2%;
}
#menu {
    background: url("/static/image/theme_default/menu.svg");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 5px;
    min-height: 2rem;
    min-width: 2rem;
    transition: 0.2s;
    cursor: pointer;
    position: sticky;
    top: 1em;
    z-index: 99;
    margin-left: 0.2em;
}

/* article */
#article {
    display: flex;
    width: 98%;
    margin: auto;
    justify-content: space-evenly;
}
#toc_wrapper {
    width: 25%;
}
#article #toc {
    background-color: white;
    position: sticky;
    transition: 0.4s;
    top: 15%;
    max-height: calc(100vh - 15vh);
    overflow-y: auto;
}
#article #toc a{
    padding: 0.2em 0.0em;
    display: block;
    font-size: 0.9em;
}
#article #toc ul, #article #toc ol {
    list-style: none;
    padding-left: 1.5em;
}
#article #toc > div > ul, #article #toc > div > ol {
    padding-left: 1em;
}

/* add numbers for toc */
#toc {counter-reset: toc_l1;}
#toc #toc_content {counter-reset: toc_l2;}
#toc a.node-name--H1 {
    counter-reset: toc_l2;
}
#toc a.node-name--H2 {
    counter-reset: toc_l3;
}
#toc a.node-name--H1:before {
    counter-increment: toc_l1;
}
#toc a.node-name--H2:before {
    counter-increment: toc_l2;
    content: counter(toc_l2, decimal) ".\00a0";
}
html[lang^=zh] #toc a.node-name--H2:before {
    counter-increment: toc_l2;
    content: counter(toc_l2, simp-chinese-informal) "、";
}
#toc a.node-name--H3:before {
    counter-increment: toc_l3;
    content: counter(toc_l2, decimal) "." counter(toc_l3, decimal) ".\00a0";
}
.heading_no_counter #toc a.node-name--H2:before {
	content: "";
}
.heading_no_counter #toc a.node-name--H3:before {
	content: "";
}
html[lang^=zh].heading_no_counter #toc a.node-name--H2:before {
    content: "";
}
/* add numbers for titles toc*/


/* article content */
#content_wrapper {
    flex-grow: 1;
    justify-content: space-between;
    flex-direction: column;
    display: flex;
    width: 65%;
}
#content_body {
    max-width: 50em;
    width: 90%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    line-height: 2em;
    margin: auto;
}
#content_body h1 {
    line-height: initial;
}
#content_body a, #content_body a:visited {
    color: #c33a3a;
    padding: 0.2em;
}
#content_body a:hover {
    background-color: #fde1e1;
    padding: 0.2em;
    border-radius: 0.2em;
}
#content_body img {
    max-width: 100%;
    object-fit: contain;
    cursor: zoom-in;
}

/* add numbers for titles */
#article_content {
    /* counter-reset: h2section h3section h4section; */
    min-height: 50vh;
    word-break: break-word;
}
#article_content h1 {
    /* counter-reset: h2section h3section h4section; */
    line-height: 1.3em;
}
#article_content h2 {
    /* counter-reset: h3section h4section; */
    line-height: 1.3em;
}
/* #article_content h3 {
    counter-reset: h4section;
}
#article_content h2:before
{
	counter-increment: h2section;
	content: counter(h2section, upper-roman) "、";
}
#article_content h3:before 
{
	counter-increment: h3section;
	content: counter(h2section, decimal) "." counter(h3section, decimal) "、";
}
#article_content h4:before 
{
	counter-increment: h4section;
	content: counter(h2section, decimal) "." counter(h3section, decimal) "." counter(h4section, decimal) "、";
}
html[lang^=zh] #article_content h2:before {
    content: counter(h2section, simp-chinese-informal) "、";
}
html[lang^=zh] #article_content h3:before {
	content: counter(h2section, decimal) "." counter(h3section, decimal) "、";
}
html[lang^=zh] #article_content h4:before {
    content: counter(h2section, decimal) "." counter(h3section, decimal) "." counter(h4section, decimal) "、";
}
.heading_no_counter #article_content h2:before {
    content: "";
}
.heading_no_counter #article_content h3:before {
	content: "";
}
.heading_no_counter #article_content h4:before {
    content: "";
}
html[lang^=zh].heading_no_counter #article_content h2:before {
    content: "";
}
html[lang^=zh].heading_no_counter #article_content h3:before {
	content: "";
}
html[lang^=zh].heading_no_counter #article_content h4:before {
    content: "";
} */
/* add numbers for titles end*/

#article_head {
    margin-bottom: 2em;
}
#article_tags ul {
    list-style: none;
    display: flex;
    align-items: baseline;
    justify-content: flex-end;
    padding: 0
}
#article_tags ul li{
    margin: 5px;
    padding: 8px;
    border-radius: 5px;
    color: #ffffffcc;
    font-size: 0.9em;
    background-color: #4caf7d;
}
#article_info {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
#article_info > div {
    align-self: center;
    display: flex;
    flex-direction: row;
    align-items: center;
}
#article_info > div > div {
    margin: 2px;
}
#article_info #print_page {
    height: 1em;
    width: 1em;
    cursor: pointer;
    background-repeat: no-repeat;
    background-size: contain;
    background-image: url("/static/image/theme_default/print.svg");
}
#article_info>div>span {
    padding: 0.2em;
    color: #4caf7d;
}
#source_link {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
}

/* cover prism.css */

:not(pre) > code[class*="language-"], pre[class*="language-"] {
    background: #2d2d2d;
    border-radius: 5px;
}
div.code-toolbar > .toolbar a, div.code-toolbar > .toolbar button, div.code-toolbar > .toolbar span {
    color: #fff;
    font-size: .8em;
    padding: 1em;
    background: #f5f2f0;
    background: rgba(224, 224, 224, 0.2);
    box-shadow: 0 2px 0 0 rgba(0,0,0,0.2);
    border-radius: .5em;
    cursor: pointer;
}
div.code-toolbar > .toolbar a:hover, div.code-toolbar > .toolbar a:focus, div.code-toolbar > .toolbar button:hover, div.code-toolbar > .toolbar button:focus, div.code-toolbar > .toolbar span:hover, div.code-toolbar > .toolbar span:focus {
    color: #a9ffe0;
    text-decoration: none;
}

/* back to top button */
/* #to_top_wrapper {
} */
#to_top {
    background: url("/static/image/theme_default/to-top.svg");
    background-size: 2em;
    background-repeat: no-repeat;
    background-position: center;
    align-self: flex-end;
    position: sticky;
    bottom: 6em;
    right: 3em;
    margin: 1em;
    height: 3rem;
    width: 3rem;
    cursor: pointer;
    transition: 0.4s;
    z-index: 97;
    border-radius: 100%;
    padding: 2px;
    background-color: #f1f1f1;
    box-shadow: 8px 8px 20px rgba(0,0,0,0.13);
}
#to_top:hover {
    background-size: 2.5em;
    box-shadow: 8px 8px 20px rgba(0,0,0,0.24);
}
#to_top:active {
    box-shadow: 0px 0px 20px rgba(0,0,0,0.05);
}


/* footer article */
#previous_next {
    min-height: 3em;
    margin-top: 2em;
    display: flex;
    border-top: 1px solid #f1f1f1;
    padding: 1em;
    transition: 0.4s;
    display: flex;
    justify-content: space-between;
}
#previous_next > div {
    margin: 1em;
}
#previous_next a{
    padding: 1em;
    border-radius: 5px;
    display: flex;
    align-items: center;
    background-color: #f1f1f1;
    justify-content: flex-start;
}
#previous_next a:hover {
    background-color: #dedede;
}
#previous_next #previous a > .label{
    flex-grow: 1;
    text-align: center;
    padding-right: 2.5em;
}
#previous_next #previous a > .icon{
    transition: transform 0.4s linear;
    background: url("/static/image/theme_default/to-top.svg");
    background-size: 2em;
    background-repeat: no-repeat;
    background-position: center;
    min-height: 2.5rem;
    min-width: 2.5rem;
    -ms-transform: rotate(-90deg);
    -moz-transform: rotate(-90deg);
    -webkit-transform: rotate(-90deg);
    transform: rotate(-90deg);
    padding-right: 2em;
    padding: 0;
}
#previous_next #next a {
    justify-content: flex-end;
}
#previous_next #next a > .label{
    flex-grow: 1;
    text-align: center;
    padding-left: 2.5em;
}
#previous_next #next a > .icon{
    transition: transform 0.4s linear;
    background: url("/static/image/theme_default/to-top.svg");
    background-size: 2em;
    background-repeat: no-repeat;
    background-position: center;
    min-height: 2.5rem;
    min-width: 2.5rem;
    -ms-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    padding-left: 2em;
    padding: 0;
}
.footnotes {
    margin-top: 5em;
}
#doc_footer {
    min-height: 2em;
    display: flex;
    background-color: #2d2d2d;
    border-top: 1px solid #2d2d2d;
    padding: 1em;
    transition: 0.4s;
}
#page_footer {
    min-height: 2em;
    /* margin-top: 5em; */
    display: flex;
    padding: 1em;
    transition: 0.4s;
    background-color: #292929;
}
#footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    line-height: 1em;
}
#footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
#footer a, #footer a:visited{
    color: #848fa0;
    display: flex;
    padding: 0.2em;
    font-size: 0.9em;
}
#footer a:hover {
    background-color: #e6e6e6;
    border-radius: 0.1em;
    padding: 0.2em;
}
#footer_top {
    width: 100%;
}
#footer_top > ul {
    display: flex;
    justify-content: space-around;
    flex-direction: row;
}
#footer_top > ul > li > a {
    color: #cecece;
    font-weight: 700;
    margin: 1em 0 0.5em 0;
}
#footer_top > ul > li > a:hover {
    background-color: transparent;
}
#footer_bottom {
    margin-top: 2em;
}
#footer_bottom a {
    justify-content: center;
}

/* TOC */
.anchor {
    opacity: 0;
    transition: 0.4s;
}
h2:hover > .anchor, h3:hover > .anchor, h4:hover > .anchor, h5:hover > .anchor {
    opacity: 1;
}
.anchor:hover {
    opacity: 1;
}
.anchor-link {
    display: none;
}
#toc_content>.toc-list {
	overflow: hidden;
	position: relative
}

#toc_content>.toc-list li {
	list-style: none
}

.toc-list {
	margin: 0;
	padding-left: 10px
}
#toc_content > .toc-list > .toc-list-item {
    border-left: 2px solid #f1f1f1;
}

a.toc-link {
	color: currentColor;
	height: 100%
}

.is-collapsible {
	/* max-height: 1000px; */
	overflow: hidden;
	transition: all 300ms ease-in-out
}

.is-collapsed {
	max-height: 0
}

.is-position-fixed {
	position: fixed !important;
	top: 0
}

.is-active-link {
	font-weight: 700
}

.toc-link::before {
	content: ' ';
	display: inline-block;
	height: inherit;
	left: 0;
	margin-top: -1px;
    padding-left: 6px;
    margin-left: -2px;
}

.is-active-link::before {
	border-left: 2px solid #4caf7d;
}

/* class template */
.md_page #page_content > div {
    width: 90%;
    max-width: 50em;
    margin: auto;
    line-height: 2em;
}

/* jupyter notebook parser */
.jp-InputArea {
    display: flex;
    flex-direction: row;
}
.jp-InputPrompt {
    word-break: keep-all;
    margin-right: 0.2em;
    font-size: 0.8em;
}
.jp-CodeMirrorEditor {
    flex-grow: 1;
    overflow: auto;
}
.jp-OutputArea-child {
    display: flex;
    flex-direction: row;
}
.jp-OutputPrompt {
    word-break: keep-all;
    margin-right: 0.2em;
    font-size: 0.8em;
    min-width: 2.7em;
}
.jp-OutputArea-output {
    flex-grow: 1;
    overflow: auto;
    background: #2d2d2d;
}

/* google translate */
#navbar #google_translate_element {
    padding: 0;
}
#navbar #google_translate_element .goog-te-gadget-simple {
    border-radius: 5px;
    transition: 0.4s;
}
#navbar #google_translate_element .goog-te-gadget-simple .goog-te-menu-value {
    transition: 0.4s;
}

/* tabset */
.tabset {
    display: flex;
    flex-direction: column;
    align-items: normal;
    border: 0.2em solid #ebedf0;
    border-radius: 0.5em;
    margin: 0.5em 0;
}
.tabset-title {
    font-size: medium;
    font-weight: 500;
    padding: 0.5em 1em;
}
.tabset-content {
    display: flex;
    flex-direction: column;
    align-items: normal;
}
.tabset-tab {
    display: flex;
    flex-direction: row;
    padding: 0 1em;
}
.tabset-tab-label {
    cursor: pointer;
    font-size: large;
    font-weight: 700;
    padding: 0.5em 1em;
    border-top-left-radius: 0.2em;
    border-top-right-radius: 0.2em;
}
.tabset-tab-label:hover {
    background-color: #0000000d;
}
.tabset-tab-active {
    background-color: #0000000d;
    border-bottom: 0.2em solid #4caf7d;
    color: #4caf7d;
}
.tabset-text-container {
    padding: 1em;
    background-color: #0000000d;
}
.tabset-text-container > div {
    display: none;
}
.tabset-text-container > div.tabset-text-active {
    display: block;
}

/* details */
details {
    display: flex;
    flex-direction: column;
    align-items: normal;
    border: 0.2em solid #ebedf0;
    border-radius: 0.5em;
    margin: 0.5em 0;
    transition: 0.4s;
}
details > summary {
    font-size: medium;
    font-weight: 500;
    padding: 0.5em 1em;
    cursor: pointer;
}
details > summary {
    list-style-type:none;
    position: relative;
    padding-left: 2em;
}
details > summary:before {
    display:inline-block;
    content: url("/static/image/theme_default/array.svg");
    transform:rotate(90deg);
    transition: 0.4s;
    left: 0.5em;
    position: absolute;
    top: 0.45rem;
}
details[open] > summary:before {
    transform:rotate(180deg);
    top: 0.35rem;
}
details[open] summary ~ * {
    animation: sweep .4s ease-in-out;
  }
@keyframes sweep {
0%    {opacity: 0; margin-left: -10px}
100%  {opacity: 1; margin-left: 0px}
}
details > .details-content, details > div {
    padding: 1em;
    background-color: #0000000d;
}

#update_history {
    overflow-x: auto;
}
#update_history details > div {
    padding: 0;
}
#update_history details {
    width: fit-content;
}

/* mobile phone */
@media screen and (max-width: 900px) {
    #navbar {
        display: block;
        border-bottom: 1px solid #f1f1f1;
        z-index: 89;
    }
    #navbar * {
        display: block;
    }
    #navbar a.site_title {
        display: flex;
    }
    #navbar_menu {
        display: flex;
        justify-content: space-between;
    }
    #navbar ul {
        padding-left: 0;
    }
    #navbar_menu_btn {
        background: url("/static/image/theme_default/menu.svg");
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
        border-radius: 5px;
        cursor: pointer;
        width: 1em;
        height: 1em;
        display: block;
    }
    #navbar #navbar_items {
        display: none;
        padding-right: 0;
    }
    #navbar .sub_items ul {
        left: 0;
        right: auto;
    }
    #sidebar_wrapper {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        background-color: white;
        box-shadow: 0 0 20px 0px #bbbbbb;
        width: 100%;
        z-index: 98;
        display: none;
    }
    #sidebar {
        position: relative;
        width: 100%;
    }
    .gutter {
        display: none;
    }
    #sidebar > ul {
        padding-top: 4em;
    }
    #menu_wrapper {
        z-index: 99;
    }
    #menu_wrapper.m_menu_fixed {
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 4em;
        background-color: rgb(255, 255, 255, 0.9);
        box-shadow: 0px 1px 10px 0px rgb(0, 0, 0, 0.06);
    }
    #menu_wrapper.m_menu_fixed > #menu {
        position: fixed;
        left: 0.2em;
        top: 1em;
    }
    #menu.close {
        background: url("/static/image/theme_default/back.svg");
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
        border-radius: 5px;
        min-height: 2em;
        min-width: 2em;
    }
    #content_body {
        width: 90%;
    }  
    #toc_wrapper {
        display: none;
        position: fixed;
        width: 100vh;
        height: 100vh;
        top: 0;
        left: 0;
        background-color: rgb(0, 0, 0, 0.5);
        z-index: 999;
        transition: 0.4s;
    }
    #toc_wrapper.show {
        display: block;
    }
    #article #toc{
        position: fixed;
        top: 4em;
        right: 0;
        z-index: 200;
        width: 90%;
        padding: 1em 0 1em 0;
        border-radius: 0.3em 0 0 0.3em;
    }
    #previous_next {
        flex-direction: column;
    }

    .m_hide {
        display: none;
    }
    #footer_top > ul {
        flex-direction: column;
    }
    .md_page #page_content > div {
        margin: 1.5em;
    }
    #article_tools {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        position: -webkit-sticky;
        position: sticky;
        top: 1em;
        z-index: 97;
    }
    #toc_btn {
        background: url("/static/image/theme_default/anchor.svg");
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
        border-radius: 5px;
        min-height: 2em;
        min-width: 2em;
        -ms-transform: rotate(12deg);
        -moz-transform: rotate(12deg);
        -webkit-transform: rotate(12deg);
        transform: rotate(12deg);
    }
}


/* special */

#themes{
    padding: 2px 5px;
    cursor: pointer;
}
#navbar .light, #navbar .dark:hover {
    background: url("/static/image/theme_default/light_mode.svg");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    min-height: 1rem;
    min-width: 1rem;
}
#navbar .dark, #navbar .light:hover {
    background: url("/static/image/theme_default/dark_mode.svg");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    min-height: 1rem;
    min-width: 1rem;
}


@media print {
    code[class*="language-"], pre[class*="language-"] {
        white-space: pre-wrap;
    }
    pre[class*="language-"].line-numbers {
        border: 1px solid #2d2d2d;
    }
    #navbar,
    #sidebar_wrapper, .gutter, #menu_wrapper,
    #toc, #to_top, #doc_footer,
    #previous_next,
    #source_link, #print_page,
    #comments-container {
        display: none;
    }
    #article {
        width: 100%;
    }
    #content_body {
        max-width: 100%;
        width: 100%;
    }
    /* .line-numbers-rows {
        display: none;
    } */
    .gutter {
        display: none;
    }
}