@charset "UTF-8";
/*!
 * The styles for Jekyll theme Chirpy
 *
 * Chirpy v5.6.1 (https://github.com/cotes2020/jekyll-theme-chirpy)
 * © 2019 Cotes Chung
 * MIT Licensed
 */
/*
 * The syntax light mode typography colors
 */
/* light-scheme */
/*
 * The main dark mode styles
 */
/* dark-scheme */
/*
* Mainly scss modules, only imported to `assets/css/main.scss`
*/
/* ---------- scss placeholder --------- */
#search-results a, h5, h4, h3, h2, h1 {
  color: var(--heading-color);
  font-weight: 400;
  font-family: Lato, "Microsoft Yahei", sans-serif;
}

#core-wrapper h5, #core-wrapper h4, #core-wrapper h3, #core-wrapper h2 {
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
}
#core-wrapper h5:focus, #core-wrapper h4:focus, #core-wrapper h3:focus, #core-wrapper h2:focus {
  outline: none; /* avoid outline in Safari */
}

h5 .anchor, h4 .anchor, h3 .anchor, h2 .anchor {
  font-size: 80%;
}
@media (hover: hover) {
  h5 .anchor, h4 .anchor, h3 .anchor, h2 .anchor {
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.25s ease-in, visibility 0s ease-in 0.25s;
  }
  h5:hover .anchor, h4:hover .anchor, h3:hover .anchor, h2:hover .anchor {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.25s ease-in, visibility 0s ease-in 0s;
  }
}

.post-tag:hover, .tag:hover {
  background: var(--tag-hover);
  transition: background 0.35s ease-in-out;
}

.table-wrapper > table tbody tr td, .table-wrapper > table thead th {
  padding: 0.4rem 1rem;
  font-size: 95%;
  white-space: nowrap;
}

#page-category a:hover,
#page-tag a:hover, .post-tail-wrapper .license-wrapper > a:hover, #search-results a:hover, #topbar #breadcrumb a:hover, .post-content a:not(.img-link):hover, .post-meta a:not([class]):hover, #access-lastmod a:hover, footer a:hover {
  color: #d2603a !important;
  border-bottom: 1px solid #d2603a;
  text-decoration: none;
}

#search-results a, #search-hints .post-tag, a {
  color: var(--link-color);
}

.post-tail-wrapper .post-meta a:not(:hover), .post-content a:not(.img-link) {
  border-bottom: 1px solid var(--link-underline-color);
}

#sidebar .sidebar-bottom .mode-toggle > i, #sidebar .sidebar-bottom a, #sidebar .nav-item:not(.active) > a, #sidebar .site-title a {
  transition: color 0.35s ease-in-out;
}

#sidebar .sidebar-bottom .icon-border, .post-content a.popup, i.far, i.fas, .code-header {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

#page-category ul > li > a,
#page-tag ul > li > a, #core-wrapper .categories a:not(:hover),
#core-wrapper #tags a:not(:hover),
#core-wrapper #archives a:not(:hover), #search-results a, #access-lastmod a {
  border-bottom: none;
}

.post-tail-wrapper .share-wrapper .share-icons > i, #search-cancel, .code-header button {
  cursor: pointer;
}

#related-posts em, #post-list .post-preview .post-meta em, .post-meta em {
  font-style: normal;
}

.preview-img img, .preview-img, .embed-video, blockquote[class^=prompt-], .code-header button, .highlight, .highlighter-rouge {
  border-radius: 6px;
}

.post-content a.popup + em, img[data-src] + em {
  display: block;
  text-align: center;
  font-style: normal;
  font-size: 80%;
  padding: 0;
  color: #6d6c6c;
}

#sidebar .sidebar-bottom .mode-toggle, #sidebar a {
  color: rgba(117, 117, 117, 0.9);
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

#related-posts .card .card-body, #related-posts .card h4 {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ---------- scss mixin --------- */
/*
 * The SCSS variables
 */
/* sidebar */
/* the basic width */
/* screen width: >= 850px, <= 1199px (iPad landscape) */
/* screen width: >= 1650px */
/* tabs of sidebar */
/* backward compatible (version <= 4.0.2) */
/* the cursor width of the selected tab */
/* other framework sizes */
/* screen width: <= 576px */
/* syntax highlight */
/*
  Appending custom SCSS variables will override the default ones in `_sass/addon/variables.scsss`
*/
/*
* The syntax highlight.
*/
/*
 * The syntax light mode code snippet colors.
 */
/* light-syntax */
/*
 * The syntax dark mode styles.
 */
@media (prefers-color-scheme: light) {
  html:not([data-mode]), html[data-mode=light] {
    /*! Color themes for Google Code Prettify | MIT License | github.com/jmblog/color-themes-for-google-code-prettify */
    /* Specify class=linenums on a pre to get line numbering */
    /* --- custom light colors --- */
    --highlight-bg-color: #f7f7f7;
    --highlighter-rouge-color: #BF2D44;
    --highlight-lineno-color: #c2c6cc;
    --inline-code-bg: #f3f3f3;
    --code-header-text-color: #a3a3b1;
    --code-header-muted-color: #ebebeb;
    --code-header-icon-color: #d1d1d1;
    --clipboard-checked-color: #43c743;
  }
  html:not([data-mode]) .prettyprint, html[data-mode=light] .prettyprint {
    background: #F7F7F7;
    font-family: Menlo, "Bitstream Vera Sans Mono", "DejaVu Sans Mono", Monaco, Consolas, monospace;
    border: 0 !important;
  }
  html:not([data-mode]) .pln, html[data-mode=light] .pln {
    color: #4d4d4c;
  }
  html:not([data-mode]) ol.linenums, html[data-mode=light] ol.linenums {
    margin-top: 0;
    margin-bottom: 0;
    color: #8e908c;
  }
  html:not([data-mode]) li.L0,
  html:not([data-mode]) li.L1,
  html:not([data-mode]) li.L2,
  html:not([data-mode]) li.L3,
  html:not([data-mode]) li.L4,
  html:not([data-mode]) li.L5,
  html:not([data-mode]) li.L6,
  html:not([data-mode]) li.L7,
  html:not([data-mode]) li.L8,
  html:not([data-mode]) li.L9, html[data-mode=light] li.L0,
  html[data-mode=light] li.L1,
  html[data-mode=light] li.L2,
  html[data-mode=light] li.L3,
  html[data-mode=light] li.L4,
  html[data-mode=light] li.L5,
  html[data-mode=light] li.L6,
  html[data-mode=light] li.L7,
  html[data-mode=light] li.L8,
  html[data-mode=light] li.L9 {
    padding-left: 1em;
    background-color: #F7F7F7;
    list-style-type: decimal;
  }
}
@media screen and (prefers-color-scheme: light) {
  html:not([data-mode]), html[data-mode=light] {
    /* string content */
    /* keyword */
    /* comment */
    /* type name */
    /* literal value */
    /* punctuation */
    /* lisp open bracket */
    /* lisp close bracket */
    /* markup tag name */
    /* markup attribute name */
    /* markup attribute value */
    /* declaration */
    /* variable name */
    /* function name */
  }
  html:not([data-mode]) .str, html[data-mode=light] .str {
    color: #d01040;
  }
  html:not([data-mode]) .kwd, html[data-mode=light] .kwd {
    color: #000000;
    font-weight: bold;
  }
  html:not([data-mode]) .com, html[data-mode=light] .com {
    color: #8e908c;
  }
  html:not([data-mode]) .typ, html[data-mode=light] .typ {
    color: #4271ae;
  }
  html:not([data-mode]) .lit, html[data-mode=light] .lit {
    color: #009999;
  }
  html:not([data-mode]) .pun, html[data-mode=light] .pun {
    color: #4d4d4c;
  }
  html:not([data-mode]) .opn, html[data-mode=light] .opn {
    color: #4d4d4c;
    font-weight: bold;
  }
  html:not([data-mode]) .clo, html[data-mode=light] .clo {
    color: #4d4d4c;
    font-weight: bold;
  }
  html:not([data-mode]) .tag, html[data-mode=light] .tag {
    color: #c82829;
  }
  html:not([data-mode]) .atn, html[data-mode=light] .atn {
    color: #008080;
  }
  html:not([data-mode]) .atv, html[data-mode=light] .atv {
    color: #3e999f;
  }
  html:not([data-mode]) .dec, html[data-mode=light] .dec {
    color: #000000;
    font-weight: bold;
  }
  html:not([data-mode]) .var, html[data-mode=light] .var {
    color: #008080;
  }
  html:not([data-mode]) .fun, html[data-mode=light] .fun {
    color: #990000;
    font-weight: bold;
  }
}
@media (prefers-color-scheme: light) {
  html:not([data-mode]) [class^=prompt-], html[data-mode=light] [class^=prompt-] {
    --inline-code-bg: #fbfafa;
    --highlighter-rouge-color: rgb(82, 82, 82);
  }
  html[data-mode=dark] {
    --highlight-bg-color: #252525;
    --highlighter-rouge-color: #de6b18;
    --highlight-lineno-color: #6c6c6d;
    --inline-code-bg: #272822;
    --code-header-text-color: #6a6a6a;
    --code-header-muted-color: rgb(60, 60, 60);
    --code-header-icon-color: rgb(86, 86, 86);
    --clipboard-checked-color: #2bcc2b;
    --filepath-text-color: #bdbdbd;
    /* override Bootstrap */
    /* syntax highlight colors from https://raw.githubusercontent.com/jwarby/pygments-css/master/monokai.css */
    /*! Color themes for Google Code Prettify | MIT License | github.com/jmblog/color-themes-for-google-code-prettify */
    /* Specify class=linenums on a pre to get line numbering */
  }
  html[data-mode=dark] pre {
    color: #bfbfbf;
  }
  html[data-mode=dark] .highlight .gp {
    color: #818c96;
  }
  html[data-mode=dark] .prettyprint {
    background: #252525;
    font-family: Menlo, "Bitstream Vera Sans Mono", "DejaVu Sans Mono", Monaco, Consolas, monospace;
    border: 0 !important;
  }
  html[data-mode=dark] .pln {
    color: #e6e9ed;
  }
  html[data-mode=dark] ol.linenums {
    margin-top: 0;
    margin-bottom: 0;
    color: #656d78;
  }
  html[data-mode=dark] li.L0,
  html[data-mode=dark] li.L1,
  html[data-mode=dark] li.L2,
  html[data-mode=dark] li.L3,
  html[data-mode=dark] li.L4,
  html[data-mode=dark] li.L5,
  html[data-mode=dark] li.L6,
  html[data-mode=dark] li.L7,
  html[data-mode=dark] li.L8,
  html[data-mode=dark] li.L9 {
    background-color: #252525;
    list-style-type: decimal;
  }
}
@media screen and (prefers-color-scheme: light) {
  html[data-mode=dark] {
    /* string content */
    /* keyword */
    /* comment */
    /* type name */
    /* literal value */
    /* punctuation */
    /* lisp open bracket */
    /* lisp close bracket */
    /* markup tag name */
    /* markup attribute name */
    /* markup attribute value */
    /* declaration */
    /* variable name */
    /* function name */
  }
  html[data-mode=dark] .str {
    color: #ffce54;
  }
  html[data-mode=dark] .kwd {
    color: #4fc1e9;
    font-weight: bold;
  }
  html[data-mode=dark] .com {
    color: #656d78;
  }
  html[data-mode=dark] .typ {
    color: #4fc1e9;
    font-weight: bold;
  }
  html[data-mode=dark] .lit {
    color: #ac92ec;
  }
  html[data-mode=dark] .pun {
    color: #e6e9ed;
  }
  html[data-mode=dark] .opn {
    color: #e6e9ed;
    font-weight: bold;
  }
  html[data-mode=dark] .clo {
    color: #e6e9ed;
    font-weight: bold;
  }
  html[data-mode=dark] .tag {
    color: #ed5565;
  }
  html[data-mode=dark] .atn {
    color: #a0d468;
  }
  html[data-mode=dark] .atv {
    color: #ffce54;
  }
  html[data-mode=dark] .dec {
    color: #ac92ec;
  }
  html[data-mode=dark] .var {
    color: #e6e9ed;
  }
  html[data-mode=dark] .fun {
    color: #e6e9ed;
  }
}
@media (prefers-color-scheme: dark) {
  html:not([data-mode]), html[data-mode=dark] {
    --highlight-bg-color: #252525;
    --highlighter-rouge-color: #de6b18;
    --highlight-lineno-color: #6c6c6d;
    --inline-code-bg: #272822;
    --code-header-text-color: #6a6a6a;
    --code-header-muted-color: rgb(60, 60, 60);
    --code-header-icon-color: rgb(86, 86, 86);
    --clipboard-checked-color: #2bcc2b;
    --filepath-text-color: #bdbdbd;
    /* override Bootstrap */
    /* syntax highlight colors from https://raw.githubusercontent.com/jwarby/pygments-css/master/monokai.css */
    /*! Color themes for Google Code Prettify | MIT License | github.com/jmblog/color-themes-for-google-code-prettify */
    /* Specify class=linenums on a pre to get line numbering */
  }
  html:not([data-mode]) pre, html[data-mode=dark] pre {
    color: #bfbfbf;
  }
  html:not([data-mode]) .highlight .gp, html[data-mode=dark] .highlight .gp {
    color: #818c96;
  }
  html:not([data-mode]) .prettyprint, html[data-mode=dark] .prettyprint {
    background: #252525;
    font-family: Menlo, "Bitstream Vera Sans Mono", "DejaVu Sans Mono", Monaco, Consolas, monospace;
    border: 0 !important;
  }
  html:not([data-mode]) .pln, html[data-mode=dark] .pln {
    color: #e6e9ed;
  }
  html:not([data-mode]) ol.linenums, html[data-mode=dark] ol.linenums {
    margin-top: 0;
    margin-bottom: 0;
    color: #656d78;
  }
  html:not([data-mode]) li.L0,
  html:not([data-mode]) li.L1,
  html:not([data-mode]) li.L2,
  html:not([data-mode]) li.L3,
  html:not([data-mode]) li.L4,
  html:not([data-mode]) li.L5,
  html:not([data-mode]) li.L6,
  html:not([data-mode]) li.L7,
  html:not([data-mode]) li.L8,
  html:not([data-mode]) li.L9, html[data-mode=dark] li.L0,
  html[data-mode=dark] li.L1,
  html[data-mode=dark] li.L2,
  html[data-mode=dark] li.L3,
  html[data-mode=dark] li.L4,
  html[data-mode=dark] li.L5,
  html[data-mode=dark] li.L6,
  html[data-mode=dark] li.L7,
  html[data-mode=dark] li.L8,
  html[data-mode=dark] li.L9 {
    background-color: #252525;
    list-style-type: decimal;
  }
}
@media screen and (prefers-color-scheme: dark) {
  html:not([data-mode]), html[data-mode=dark] {
    /* string content */
    /* keyword */
    /* comment */
    /* type name */
    /* literal value */
    /* punctuation */
    /* lisp open bracket */
    /* lisp close bracket */
    /* markup tag name */
    /* markup attribute name */
    /* markup attribute value */
    /* declaration */
    /* variable name */
    /* function name */
  }
  html:not([data-mode]) .str, html[data-mode=dark] .str {
    color: #ffce54;
  }
  html:not([data-mode]) .kwd, html[data-mode=dark] .kwd {
    color: #4fc1e9;
    font-weight: bold;
  }
  html:not([data-mode]) .com, html[data-mode=dark] .com {
    color: #656d78;
  }
  html:not([data-mode]) .typ, html[data-mode=dark] .typ {
    color: #4fc1e9;
    font-weight: bold;
  }
  html:not([data-mode]) .lit, html[data-mode=dark] .lit {
    color: #ac92ec;
  }
  html:not([data-mode]) .pun, html[data-mode=dark] .pun {
    color: #e6e9ed;
  }
  html:not([data-mode]) .opn, html[data-mode=dark] .opn {
    color: #e6e9ed;
    font-weight: bold;
  }
  html:not([data-mode]) .clo, html[data-mode=dark] .clo {
    color: #e6e9ed;
    font-weight: bold;
  }
  html:not([data-mode]) .tag, html[data-mode=dark] .tag {
    color: #ed5565;
  }
  html:not([data-mode]) .atn, html[data-mode=dark] .atn {
    color: #a0d468;
  }
  html:not([data-mode]) .atv, html[data-mode=dark] .atv {
    color: #ffce54;
  }
  html:not([data-mode]) .dec, html[data-mode=dark] .dec {
    color: #ac92ec;
  }
  html:not([data-mode]) .var, html[data-mode=dark] .var {
    color: #e6e9ed;
  }
  html:not([data-mode]) .fun, html[data-mode=dark] .fun {
    color: #e6e9ed;
  }
}
@media (prefers-color-scheme: dark) {
  html[data-mode=light] {
    /*! Color themes for Google Code Prettify | MIT License | github.com/jmblog/color-themes-for-google-code-prettify */
    /* Specify class=linenums on a pre to get line numbering */
    /* --- custom light colors --- */
    --highlight-bg-color: #f7f7f7;
    --highlighter-rouge-color: #BF2D44;
    --highlight-lineno-color: #c2c6cc;
    --inline-code-bg: #f3f3f3;
    --code-header-text-color: #a3a3b1;
    --code-header-muted-color: #ebebeb;
    --code-header-icon-color: #d1d1d1;
    --clipboard-checked-color: #43c743;
  }
  html[data-mode=light] .prettyprint {
    background: #F7F7F7;
    font-family: Menlo, "Bitstream Vera Sans Mono", "DejaVu Sans Mono", Monaco, Consolas, monospace;
    border: 0 !important;
  }
  html[data-mode=light] .pln {
    color: #4d4d4c;
  }
  html[data-mode=light] ol.linenums {
    margin-top: 0;
    margin-bottom: 0;
    color: #8e908c;
  }
  html[data-mode=light] li.L0,
  html[data-mode=light] li.L1,
  html[data-mode=light] li.L2,
  html[data-mode=light] li.L3,
  html[data-mode=light] li.L4,
  html[data-mode=light] li.L5,
  html[data-mode=light] li.L6,
  html[data-mode=light] li.L7,
  html[data-mode=light] li.L8,
  html[data-mode=light] li.L9 {
    padding-left: 1em;
    background-color: #F7F7F7;
    list-style-type: decimal;
  }
}
@media screen and (prefers-color-scheme: dark) {
  html[data-mode=light] {
    /* string content */
    /* keyword */
    /* comment */
    /* type name */
    /* literal value */
    /* punctuation */
    /* lisp open bracket */
    /* lisp close bracket */
    /* markup tag name */
    /* markup attribute name */
    /* markup attribute value */
    /* declaration */
    /* variable name */
    /* function name */
  }
  html[data-mode=light] .str {
    color: #d01040;
  }
  html[data-mode=light] .kwd {
    color: #000000;
    font-weight: bold;
  }
  html[data-mode=light] .com {
    color: #8e908c;
  }
  html[data-mode=light] .typ {
    color: #4271ae;
  }
  html[data-mode=light] .lit {
    color: #009999;
  }
  html[data-mode=light] .pun {
    color: #4d4d4c;
  }
  html[data-mode=light] .opn {
    color: #4d4d4c;
    font-weight: bold;
  }
  html[data-mode=light] .clo {
    color: #4d4d4c;
    font-weight: bold;
  }
  html[data-mode=light] .tag {
    color: #c82829;
  }
  html[data-mode=light] .atn {
    color: #008080;
  }
  html[data-mode=light] .atv {
    color: #3e999f;
  }
  html[data-mode=light] .dec {
    color: #000000;
    font-weight: bold;
  }
  html[data-mode=light] .var {
    color: #008080;
  }
  html[data-mode=light] .fun {
    color: #990000;
    font-weight: bold;
  }
}
@media (prefers-color-scheme: dark) {
  html[data-mode=light] [class^=prompt-] {
    --inline-code-bg: #fbfafa;
    --highlighter-rouge-color: rgb(82, 82, 82);
  }
}

/* -- code snippets -- */
figure.highlight, .highlight, .highlighter-rouge {
  background: var(--highlight-bg-color);
}

td.rouge-code {
  padding-left: 0.25rem;
  padding-right: 1.5rem;
}

.highlighter-rouge {
  color: var(--highlighter-rouge-color);
  margin-top: 0.5rem;
  margin-bottom: 1.2em; /* Override BS Inline-code style */
}

.highlight {
  overflow: auto;
  padding-top: 0.5rem;
  padding-bottom: 1rem;
}
.highlight pre {
  margin-bottom: 0;
  font-size: 0.85rem;
  line-height: 1.4rem;
  word-wrap: normal; /* Fixed Safari overflow-x */
}
.highlight table td pre {
  overflow: visible; /* Fixed iOS safari overflow-x */
  word-break: normal; /* Fixed iOS safari linenos code break */
}
.highlight .lineno {
  padding-right: 0.5rem;
  min-width: 2.2rem;
  text-align: right;
  color: var(--highlight-lineno-color);
  -webkit-user-select: none;
  -moz-user-select: none;
  -o-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* .highlight */
code {
  -webkit-hyphens: none;
  -ms-hyphens: none;
  hyphens: none;
}
code.highlighter-rouge {
  font-size: 0.85rem;
  padding: 3px 5px;
  word-break: break-word;
  border-radius: 4px;
  background-color: var(--inline-code-bg);
}
code.filepath {
  background-color: inherit;
  color: var(--filepath-text-color);
  font-weight: 600;
  padding: 0;
}
a > code.highlighter-rouge {
  padding-bottom: 0; /* show link's underlinke */
  color: inherit;
}
a:hover > code.highlighter-rouge {
  border-bottom: none;
}
blockquote code {
  color: inherit;
}
.highlight > code {
  color: transparent;
}

td.rouge-code {
  /*
    Prevent some browser extends from
    changing the URL string of code block.
  */
}
td.rouge-code a {
  color: inherit !important;
  border-bottom: none !important;
  pointer-events: none;
}

/* Hide line numbers for default, console, and terminal code snippets */
div[class^=highlighter-rouge] pre.lineno, div.nolineno pre.lineno, div.language-plaintext.highlighter-rouge pre.lineno, div.language-console.highlighter-rouge pre.lineno, div.language-terminal.highlighter-rouge pre.lineno {
  display: none;
}
div[class^=highlighter-rouge] td.rouge-code, div.nolineno td.rouge-code, div.language-plaintext.highlighter-rouge td.rouge-code, div.language-console.highlighter-rouge td.rouge-code, div.language-terminal.highlighter-rouge td.rouge-code {
  padding-left: 1.5rem;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 2.25rem;
  /* the label block */
  /* clipboard */
}
.code-header::before {
  content: "";
  display: inline-block;
  margin-left: 1rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background-color: var(--code-header-muted-color);
  box-shadow: 1.25rem 0 0 var(--code-header-muted-color), 2.5rem 0 0 var(--code-header-muted-color);
}
.code-header span {
  /* label icon */
  /* label text */
}
.code-header span i {
  font-size: 1rem;
  margin-right: 0.4rem;
  color: var(--code-header-icon-color);
}
.code-header span i.small {
  font-size: 70%;
}
[file] .code-header span > i {
  position: relative;
  top: 1px; /* center the file icon */
}

.code-header span::after {
  content: attr(data-label-text);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--code-header-text-color);
}
.code-header button {
  border: 1px solid transparent;
  height: 2.25rem;
  width: 2.25rem;
  padding: 0;
  background-color: inherit;
}
.code-header button i {
  color: var(--code-header-icon-color);
}
.code-header button[timeout]:hover {
  border-color: var(--clipboard-checked-color);
}
.code-header button[timeout] i {
  color: var(--clipboard-checked-color);
}
.code-header button:focus {
  outline: none;
}
.code-header button:not([timeout]):hover {
  background-color: rgba(128, 128, 128, 0.37);
}
.code-header button:not([timeout]):hover i {
  color: white;
}

@media all and (max-width: 576px) {
  .post-content > div[class^=language-] {
    margin-left: -1.25rem;
    margin-right: -1.25rem;
    border-radius: 0;
  }
  .post-content > div[class^=language-] .highlight {
    padding-left: 0.25rem;
  }
  .post-content > div[class^=language-] .code-header {
    border-radius: 0;
    padding-left: 0.4rem;
    padding-right: 0.5rem;
  }
}
/*
  The common styles
*/
html {
  font-size: 16px;
}
@media (prefers-color-scheme: light) {
  html:not([data-mode]), html[data-mode=light] {
    /* Framework color */
    --main-bg: white;
    --mask-bg: #c1c3c5;
    --main-border-color: #f3f3f3;
    /* Common color */
    --text-color: #34343c;
    --text-muted-color: #8e8e8e;
    --heading-color: black;
    --blockquote-border-color: #eeeeee;
    --blockquote-text-color: #9a9a9a;
    --link-color: #0153ab;
    --link-underline-color: #dee2e6;
    --button-bg: #ffffff;
    --btn-border-color: #e9ecef;
    --btn-backtotop-color: #686868;
    --btn-backtotop-border-color: #f1f1f1;
    --btn-box-shadow: #eaeaea;
    --checkbox-color: #c5c5c5;
    --checkbox-checked-color: #07a8f7;
    --img-bg: radial-gradient(
      circle,
      rgb(255, 255, 255) 0%,
      rgb(239, 239, 239) 100%
    );
    --shimmer-bg: linear-gradient(
      90deg,
      rgba(250, 250, 250, 0) 0%,
      rgba(232, 230, 230, 1) 50%,
      rgba(250, 250, 250, 0) 100%
    );
    /* Sidebar */
    --sidebar-bg: #f6f8fa;
    --sidebar-muted-color: #a2a19f;
    --sidebar-active-color: #424242;
    --nav-cursor-color: #0153ab;
    --sidebar-btn-bg: white;
    /* Topbar */
    --topbar-text-color: rgb(78, 78, 78);
    --topbar-wrapper-bg: white;
    --search-wrapper-bg: rgb(245, 245, 245, 0.5);
    --search-wrapper-border-color: rgb(245, 245, 245);
    --search-wrapper-border-color: rgb(240, 240, 240);
    --search-tag-bg: #f8f9fa;
    --search-icon-color: #c2c6cc;
    --input-focus-border-color: var(--btn-border-color);
    /* Home page */
    --post-list-text-color: dimgray;
    --btn-patinator-text-color: #555555;
    --btn-paginator-hover-color: var(--sidebar-bg);
    --btn-paginator-border-color: var(--sidebar-bg);
    --btn-text-color: #676666;
    --pin-bg: #f5f5f5;
    --pin-color: #999fa4;
    /* Posts */
    --toc-highlight: #563d7c;
    --btn-share-hover-color: var(--link-color);
    --card-hovor-bg: #eeeeee;
    --card-border-color: #ececec;
    --card-box-shadow: rgba(234, 234, 234, 0.76);
    --label-color: #616161;
    --relate-post-date: rgba(30, 55, 70, 0.4);
    --footnote-target-bg: lightcyan;
    --tag-bg: rgba(0, 0, 0, 0.075);
    --tag-border: #dee2e6;
    --tag-shadow: var(--btn-border-color);
    --tag-hover: rgb(222, 226, 230);
    --tb-odd-bg: #fbfcfd;
    --tb-border-color: #eaeaea;
    --dash-color: silver;
    --kbd-wrap-color: #bdbdbd;
    --kbd-text-color: var(--text-color);
    --kbd-bg-color: white;
    --prompt-text-color: rgb(46, 46, 46, 0.77);
    --prompt-tip-bg: rgb(123, 247, 144, 0.2);
    --prompt-tip-icon-color: #03b303;
    --prompt-info-bg: #e1f5fe;
    --prompt-info-icon-color: #0070cb;
    --prompt-warning-bg: rgb(255, 243, 205);
    --prompt-warning-icon-color: #ef9c03;
    --prompt-danger-bg: rgb(248, 215, 218, 0.56);
    --prompt-danger-icon-color: #df3c30;
    /* Categories */
    --categories-border: rgba(0, 0, 0, 0.125);
    --categories-hover-bg: var(--btn-border-color);
    --categories-icon-hover-color: darkslategray;
    /* Archive */
    --timeline-color: rgba(0, 0, 0, 0.075);
    --timeline-node-bg: #c2c6cc;
    --timeline-year-dot-color: #ffffff;
  }
  html:not([data-mode]) [class^=prompt-], html[data-mode=light] [class^=prompt-] {
    --link-underline-color: rgb(219, 216, 216);
  }
  html:not([data-mode]) .dark, html[data-mode=light] .dark {
    display: none;
  }
  html[data-mode=dark] {
    /* Framework color */
    --main-bg: rgb(27, 27, 30);
    --mask-bg: rgb(68, 69, 70);
    --main-border-color: rgb(44, 45, 45);
    /* Common color */
    --text-color: rgb(175, 176, 177);
    --text-muted-color: rgb(107, 116, 124);
    --heading-color: #cccccc;
    --blockquote-border-color: rgb(66, 66, 66);
    --blockquote-text-color: rgb(117, 117, 117);
    --link-color: rgb(138, 180, 248);
    --link-underline-color: rgb(82, 108, 150);
    --button-bg: rgb(39, 40, 43);
    --btn-border-color: rgb(63, 65, 68);
    --btn-backtotop-color: var(--text-color);
    --btn-backtotop-border-color: var(--btn-border-color);
    --btn-box-shadow: var(--main-bg);
    --card-header-bg: rgb(51, 50, 50);
    --label-color: rgb(108, 117, 125);
    --checkbox-color: rgb(118, 120, 121);
    --checkbox-checked-color: var(--link-color);
    --img-bg: radial-gradient(circle, rgb(22, 22, 24) 0%, rgb(32, 32, 32) 100%);
    --shimmer-bg: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(58, 55, 55, 0.4) 50%,
      rgba(255, 255, 255, 0) 100%
    );
    /* Sidebar */
    --sidebar-bg: radial-gradient(circle, #242424 0%, #1d1f27 100%);
    --sidebar-muted-color: #6d6c6b;
    --sidebar-active-color: rgb(255, 255, 255, 0.8);
    --nav-cursor-color: rgb(183, 182, 182);
    --sidebar-btn-bg: rgb(117, 116, 116, 0.2);
    /* Topbar */
    --topbar-text-color: var(--text-color);
    --topbar-wrapper-bg: rgb(39, 40, 43);
    --search-wrapper-bg: rgb(34, 34, 39);
    --search-wrapper-border-color: rgb(34, 34, 39);
    --search-icon-color: rgb(100, 102, 105);
    --input-focus-border-color: rgb(112, 114, 115);
    /* Home page */
    --post-list-text-color: rgb(175, 176, 177);
    --btn-patinator-text-color: var(--text-color);
    --btn-paginator-hover-color: rgb(64, 65, 66);
    --btn-paginator-border-color: var(--btn-border-color);
    --btn-text-color: var(--text-color);
    --pin-bg: rgb(34, 35, 37);
    --pin-color: inherit;
    /* Posts */
    --toc-highlight: rgb(116, 178, 243);
    --tag-bg: rgb(41, 40, 40);
    --tag-hover: rgb(43, 56, 62);
    --tb-odd-bg: rgba(42, 47, 53, 0.52); /* odd rows of the posts' table */
    --tb-even-bg: rgb(31, 31, 34); /* even rows of the posts' table */
    --tb-border-color: var(--tb-odd-bg);
    --footnote-target-bg: rgb(63, 81, 181);
    --btn-share-color: #6c757d;
    --btn-share-hover-color: #bfc1ca;
    --relate-post-date: var(--text-muted-color);
    --card-bg: #212121;
    --card-hovor-bg: #3a3a3a;
    --card-border-color: rgb(53, 53, 60);
    --card-box-shadow:#2a2c2d;
    --kbd-wrap-color: #6a6a6a;
    --kbd-text-color: #d3d3d3;
    --kbd-bg-color: #242424;
    --prompt-text-color: rgb(216, 212, 212, 0.75);
    --prompt-tip-bg: rgba(77, 187, 95, 0.2);
    --prompt-tip-icon-color: rgb(5, 223, 5, 0.68);
    --prompt-info-bg: rgb(7, 59, 104, 0.8);
    --prompt-info-icon-color: #0075d1;
    --prompt-warning-bg: rgb(90, 69, 3, 0.95);
    --prompt-warning-icon-color: rgb(255, 165, 0, 0.8);
    --prompt-danger-bg: rgb(86, 28, 8, 0.8);
    --prompt-danger-icon-color: #cd0202;
    /* tags */
    --tag-border: rgb(59, 79, 88);
    --tag-shadow: rgb(32, 33, 33);
    --search-tag-bg: var(--tag-bg);
    --dash-color: rgb(63, 65, 68);
    /* categories */
    --categories-border: rgb(64, 66, 69);
    --categories-hover-bg: rgb(73, 75, 76);
    --categories-icon-hover-color: white;
    /* archives */
    --timeline-node-bg: rgb(150, 152, 156);
    --timeline-color: rgb(63, 65, 68);
    --timeline-year-dot-color: var(--timeline-color);
    /* categories */
    color-scheme: dark;
    /* stylelint-disable-next-line selector-id-pattern */
  }
  html[data-mode=dark] .post img[data-src].lazyloaded {
    -webkit-filter: brightness(95%);
    filter: brightness(95%);
  }
  html[data-mode=dark] .light {
    display: none;
  }
  html[data-mode=dark] hr {
    border-color: var(--main-border-color);
  }
  html[data-mode=dark] .categories.card,
  html[data-mode=dark] .list-group-item {
    background-color: var(--card-bg);
  }
  html[data-mode=dark] .categories .card-header {
    background-color: var(--card-header-bg);
  }
  html[data-mode=dark] .categories .list-group-item {
    border-left: none;
    border-right: none;
    padding-left: 2rem;
    border-color: var(--categories-border);
  }
  html[data-mode=dark] .categories .list-group-item:last-child {
    border-bottom-color: var(--card-bg);
  }
  html[data-mode=dark] #archives li:nth-child(odd) {
    background-image: linear-gradient(to left, rgb(26, 26, 30), rgb(39, 39, 45), rgb(39, 39, 45), rgb(39, 39, 45), rgb(26, 26, 30));
  }
  html[data-mode=dark] #disqus_thread {
    color-scheme: none;
  }
}
@media (prefers-color-scheme: dark) {
  html:not([data-mode]), html[data-mode=dark] {
    /* Framework color */
    --main-bg: rgb(27, 27, 30);
    --mask-bg: rgb(68, 69, 70);
    --main-border-color: rgb(44, 45, 45);
    /* Common color */
    --text-color: rgb(175, 176, 177);
    --text-muted-color: rgb(107, 116, 124);
    --heading-color: #cccccc;
    --blockquote-border-color: rgb(66, 66, 66);
    --blockquote-text-color: rgb(117, 117, 117);
    --link-color: rgb(138, 180, 248);
    --link-underline-color: rgb(82, 108, 150);
    --button-bg: rgb(39, 40, 43);
    --btn-border-color: rgb(63, 65, 68);
    --btn-backtotop-color: var(--text-color);
    --btn-backtotop-border-color: var(--btn-border-color);
    --btn-box-shadow: var(--main-bg);
    --card-header-bg: rgb(51, 50, 50);
    --label-color: rgb(108, 117, 125);
    --checkbox-color: rgb(118, 120, 121);
    --checkbox-checked-color: var(--link-color);
    --img-bg: radial-gradient(circle, rgb(22, 22, 24) 0%, rgb(32, 32, 32) 100%);
    --shimmer-bg: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(58, 55, 55, 0.4) 50%,
      rgba(255, 255, 255, 0) 100%
    );
    /* Sidebar */
    --sidebar-bg: radial-gradient(circle, #242424 0%, #1d1f27 100%);
    --sidebar-muted-color: #6d6c6b;
    --sidebar-active-color: rgb(255, 255, 255, 0.8);
    --nav-cursor-color: rgb(183, 182, 182);
    --sidebar-btn-bg: rgb(117, 116, 116, 0.2);
    /* Topbar */
    --topbar-text-color: var(--text-color);
    --topbar-wrapper-bg: rgb(39, 40, 43);
    --search-wrapper-bg: rgb(34, 34, 39);
    --search-wrapper-border-color: rgb(34, 34, 39);
    --search-icon-color: rgb(100, 102, 105);
    --input-focus-border-color: rgb(112, 114, 115);
    /* Home page */
    --post-list-text-color: rgb(175, 176, 177);
    --btn-patinator-text-color: var(--text-color);
    --btn-paginator-hover-color: rgb(64, 65, 66);
    --btn-paginator-border-color: var(--btn-border-color);
    --btn-text-color: var(--text-color);
    --pin-bg: rgb(34, 35, 37);
    --pin-color: inherit;
    /* Posts */
    --toc-highlight: rgb(116, 178, 243);
    --tag-bg: rgb(41, 40, 40);
    --tag-hover: rgb(43, 56, 62);
    --tb-odd-bg: rgba(42, 47, 53, 0.52); /* odd rows of the posts' table */
    --tb-even-bg: rgb(31, 31, 34); /* even rows of the posts' table */
    --tb-border-color: var(--tb-odd-bg);
    --footnote-target-bg: rgb(63, 81, 181);
    --btn-share-color: #6c757d;
    --btn-share-hover-color: #bfc1ca;
    --relate-post-date: var(--text-muted-color);
    --card-bg: #212121;
    --card-hovor-bg: #3a3a3a;
    --card-border-color: rgb(53, 53, 60);
    --card-box-shadow:#2a2c2d;
    --kbd-wrap-color: #6a6a6a;
    --kbd-text-color: #d3d3d3;
    --kbd-bg-color: #242424;
    --prompt-text-color: rgb(216, 212, 212, 0.75);
    --prompt-tip-bg: rgba(77, 187, 95, 0.2);
    --prompt-tip-icon-color: rgb(5, 223, 5, 0.68);
    --prompt-info-bg: rgb(7, 59, 104, 0.8);
    --prompt-info-icon-color: #0075d1;
    --prompt-warning-bg: rgb(90, 69, 3, 0.95);
    --prompt-warning-icon-color: rgb(255, 165, 0, 0.8);
    --prompt-danger-bg: rgb(86, 28, 8, 0.8);
    --prompt-danger-icon-color: #cd0202;
    /* tags */
    --tag-border: rgb(59, 79, 88);
    --tag-shadow: rgb(32, 33, 33);
    --search-tag-bg: var(--tag-bg);
    --dash-color: rgb(63, 65, 68);
    /* categories */
    --categories-border: rgb(64, 66, 69);
    --categories-hover-bg: rgb(73, 75, 76);
    --categories-icon-hover-color: white;
    /* archives */
    --timeline-node-bg: rgb(150, 152, 156);
    --timeline-color: rgb(63, 65, 68);
    --timeline-year-dot-color: var(--timeline-color);
    /* categories */
    color-scheme: dark;
    /* stylelint-disable-next-line selector-id-pattern */
  }
  html:not([data-mode]) .post img[data-src].lazyloaded, html[data-mode=dark] .post img[data-src].lazyloaded {
    -webkit-filter: brightness(95%);
    filter: brightness(95%);
  }
  html:not([data-mode]) .light, html[data-mode=dark] .light {
    display: none;
  }
  html:not([data-mode]) hr, html[data-mode=dark] hr {
    border-color: var(--main-border-color);
  }
  html:not([data-mode]) .categories.card,
  html:not([data-mode]) .list-group-item, html[data-mode=dark] .categories.card,
  html[data-mode=dark] .list-group-item {
    background-color: var(--card-bg);
  }
  html:not([data-mode]) .categories .card-header, html[data-mode=dark] .categories .card-header {
    background-color: var(--card-header-bg);
  }
  html:not([data-mode]) .categories .list-group-item, html[data-mode=dark] .categories .list-group-item {
    border-left: none;
    border-right: none;
    padding-left: 2rem;
    border-color: var(--categories-border);
  }
  html:not([data-mode]) .categories .list-group-item:last-child, html[data-mode=dark] .categories .list-group-item:last-child {
    border-bottom-color: var(--card-bg);
  }
  html:not([data-mode]) #archives li:nth-child(odd), html[data-mode=dark] #archives li:nth-child(odd) {
    background-image: linear-gradient(to left, rgb(26, 26, 30), rgb(39, 39, 45), rgb(39, 39, 45), rgb(39, 39, 45), rgb(26, 26, 30));
  }
  html:not([data-mode]) #disqus_thread, html[data-mode=dark] #disqus_thread {
    color-scheme: none;
  }
  html[data-mode=light] {
    /* Framework color */
    --main-bg: white;
    --mask-bg: #c1c3c5;
    --main-border-color: #f3f3f3;
    /* Common color */
    --text-color: #34343c;
    --text-muted-color: #8e8e8e;
    --heading-color: black;
    --blockquote-border-color: #eeeeee;
    --blockquote-text-color: #9a9a9a;
    --link-color: #0153ab;
    --link-underline-color: #dee2e6;
    --button-bg: #ffffff;
    --btn-border-color: #e9ecef;
    --btn-backtotop-color: #686868;
    --btn-backtotop-border-color: #f1f1f1;
    --btn-box-shadow: #eaeaea;
    --checkbox-color: #c5c5c5;
    --checkbox-checked-color: #07a8f7;
    --img-bg: radial-gradient(
      circle,
      rgb(255, 255, 255) 0%,
      rgb(239, 239, 239) 100%
    );
    --shimmer-bg: linear-gradient(
      90deg,
      rgba(250, 250, 250, 0) 0%,
      rgba(232, 230, 230, 1) 50%,
      rgba(250, 250, 250, 0) 100%
    );
    /* Sidebar */
    --sidebar-bg: #f6f8fa;
    --sidebar-muted-color: #a2a19f;
    --sidebar-active-color: #424242;
    --nav-cursor-color: #0153ab;
    --sidebar-btn-bg: white;
    /* Topbar */
    --topbar-text-color: rgb(78, 78, 78);
    --topbar-wrapper-bg: white;
    --search-wrapper-bg: rgb(245, 245, 245, 0.5);
    --search-wrapper-border-color: rgb(245, 245, 245);
    --search-wrapper-border-color: rgb(240, 240, 240);
    --search-tag-bg: #f8f9fa;
    --search-icon-color: #c2c6cc;
    --input-focus-border-color: var(--btn-border-color);
    /* Home page */
    --post-list-text-color: dimgray;
    --btn-patinator-text-color: #555555;
    --btn-paginator-hover-color: var(--sidebar-bg);
    --btn-paginator-border-color: var(--sidebar-bg);
    --btn-text-color: #676666;
    --pin-bg: #f5f5f5;
    --pin-color: #999fa4;
    /* Posts */
    --toc-highlight: #563d7c;
    --btn-share-hover-color: var(--link-color);
    --card-hovor-bg: #eeeeee;
    --card-border-color: #ececec;
    --card-box-shadow: rgba(234, 234, 234, 0.76);
    --label-color: #616161;
    --relate-post-date: rgba(30, 55, 70, 0.4);
    --footnote-target-bg: lightcyan;
    --tag-bg: rgba(0, 0, 0, 0.075);
    --tag-border: #dee2e6;
    --tag-shadow: var(--btn-border-color);
    --tag-hover: rgb(222, 226, 230);
    --tb-odd-bg: #fbfcfd;
    --tb-border-color: #eaeaea;
    --dash-color: silver;
    --kbd-wrap-color: #bdbdbd;
    --kbd-text-color: var(--text-color);
    --kbd-bg-color: white;
    --prompt-text-color: rgb(46, 46, 46, 0.77);
    --prompt-tip-bg: rgb(123, 247, 144, 0.2);
    --prompt-tip-icon-color: #03b303;
    --prompt-info-bg: #e1f5fe;
    --prompt-info-icon-color: #0070cb;
    --prompt-warning-bg: rgb(255, 243, 205);
    --prompt-warning-icon-color: #ef9c03;
    --prompt-danger-bg: rgb(248, 215, 218, 0.56);
    --prompt-danger-icon-color: #df3c30;
    /* Categories */
    --categories-border: rgba(0, 0, 0, 0.125);
    --categories-hover-bg: var(--btn-border-color);
    --categories-icon-hover-color: darkslategray;
    /* Archive */
    --timeline-color: rgba(0, 0, 0, 0.075);
    --timeline-node-bg: #c2c6cc;
    --timeline-year-dot-color: #ffffff;
  }
  html[data-mode=light] [class^=prompt-] {
    --link-underline-color: rgb(219, 216, 216);
  }
  html[data-mode=light] .dark {
    display: none;
  }
}

body {
  background: var(--main-bg);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  color: var(--text-color);
  -webkit-font-smoothing: antialiased;
  font-family: "Source Sans Pro", "Microsoft Yahei", sans-serif;
  line-height: 1.75;
}

/* --- Typography --- */
h1 {
  font-size: 1.9rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.2rem;
}

h4 {
  font-size: 1.15rem;
}

h5 {
  font-size: 1.1rem;
}

img {
  max-width: 100%;
  height: auto;
}
img[data-src].lazyloaded {
  -webkit-animation: fade-in 0.4s ease-in;
  animation: fade-in 0.4s ease-in;
}
img[data-src][data-lqip=true].lazyload, img[data-src][data-lqip=true].lazyloading {
  -webkit-filter: blur(20px);
  filter: blur(20px);
}
img[data-src]:not([data-lqip=true]).lazyload, img[data-src]:not([data-lqip=true]).lazyloading {
  background: var(--img-bg);
}
img[data-src].shadow {
  -webkit-filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.08));
  filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.08));
  box-shadow: none !important; /* cover the Bootstrap 4.6.1 styles */
}
@-webkit-keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

blockquote {
  border-left: 5px solid var(--blockquote-border-color);
  padding-left: 1rem;
  color: var(--blockquote-text-color);
}
blockquote[class^=prompt-] {
  border-left: 0;
  position: relative;
  padding: 1rem 1rem 1rem 3rem;
  color: var(--prompt-text-color);
}
blockquote[class^=prompt-]::before {
  text-align: center;
  width: 3rem;
  position: absolute;
  left: 0.25rem;
  margin-top: 0.4rem;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
}
blockquote[class^=prompt-] > p:last-child {
  margin-bottom: 0;
}
blockquote.prompt-tip {
  background-color: var(--prompt-tip-bg);
}
blockquote.prompt-tip::before {
  content: "\f0eb";
  color: var(--prompt-tip-icon-color);
  font: var(--fa-font-regular);
}
blockquote.prompt-info {
  background-color: var(--prompt-info-bg);
}
blockquote.prompt-info::before {
  content: "\f06a";
  color: var(--prompt-info-icon-color);
  font: var(--fa-font-solid);
}
blockquote.prompt-warning {
  background-color: var(--prompt-warning-bg);
}
blockquote.prompt-warning::before {
  content: "\f06a";
  color: var(--prompt-warning-icon-color);
  font: var(--fa-font-solid);
}
blockquote.prompt-danger {
  background-color: var(--prompt-danger-bg);
}
blockquote.prompt-danger::before {
  content: "\f071";
  color: var(--prompt-danger-icon-color);
  font: var(--fa-font-solid);
}

kbd {
  font-family: inherit;
  display: inline-block;
  vertical-align: middle;
  line-height: 1.3rem;
  min-width: 1.75rem;
  text-align: center;
  margin: 0 0.3rem;
  padding-top: 0.1rem;
  color: var(--kbd-text-color);
  background-color: var(--kbd-bg-color);
  border-radius: 0.25rem;
  border: solid 1px var(--kbd-wrap-color);
  box-shadow: inset 0 -2px 0 var(--kbd-wrap-color);
}

footer {
  font-size: 0.8rem;
  background-color: var(--main-bg);
}
footer div.d-flex {
  height: 5rem;
  line-height: 1.2rem;
  padding-bottom: 1rem;
  border-top: 1px solid var(--main-border-color);
}
footer div.d-flex > div {
  width: 350px;
}
footer a:link {
  text-decoration: none;
}
footer a:hover {
  text-decoration: none;
}
footer .footer-right {
  text-align: right;
}

/* fontawesome icons */
/* --- Panels --- */
.access {
  top: 2rem;
  transition: top 0.2s ease-in-out;
  margin-top: 3rem;
  margin-bottom: 4rem;
}
.access:only-child {
  position: -webkit-sticky;
  position: sticky;
}
.access > div {
  padding-left: 1rem;
  border-left: 1px solid var(--main-border-color);
}
.access > div:not(:last-child) {
  margin-bottom: 4rem;
}
.access .post-content {
  font-size: 0.9rem;
}

#panel-wrapper {
  /* the headings */
}
#panel-wrapper .panel-heading {
  color: var(--label-color);
  font-size: inherit;
  font-weight: 600;
}
#panel-wrapper .post-tag {
  display: inline-block;
  line-height: 1rem;
  font-size: 0.85rem;
  background: none;
  border: 1px solid var(--btn-border-color);
  border-radius: 0.8rem;
  padding: 0.3rem 0.5rem;
  margin: 0 0.35rem 0.5rem 0;
}
#panel-wrapper .post-tag:hover {
  background-color: #007bff;
  border-color: #007bff;
  color: #ffffff;
  transition: none;
}
[data-topbar-visible=true] #panel-wrapper > div {
  top: 6rem;
}

#access-lastmod li {
  height: 1.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  list-style: none;
}
#access-lastmod a {
  color: inherit;
}
.footnotes > ol {
  padding-left: 2rem;
  margin-top: 0.5rem;
}
.footnotes > ol > li {
  /* [scroll-focus] added by `smooth-scroll.js` */
}
.footnotes > ol > li:not(:last-child) {
  margin-bottom: 0.3rem;
}
.footnotes > ol > li > p {
  margin-left: 0.25em;
  margin-top: 0;
  margin-bottom: 0;
}
.footnotes > ol > li:target:not([scroll-focus]), .footnotes > ol > li[scroll-focus=true] > p {
  background-color: var(--footnote-target-bg);
  width: -moz-fit-content;
  width: -webkit-fit-content;
  width: fit-content;
  transition: background-color 1.5s ease-in-out;
}

.footnote {
  /* [scroll-focus] added by `smooth-scroll.js` */
}
a.footnote {
  margin-left: 1px;
  margin-right: 1px;
  padding-left: 2px;
  padding-right: 2px;
  border-bottom-style: none !important;
  transition: background-color 1.5s ease-in-out;
}

sup:target:not([scroll-focus]),
sup[scroll-focus=true] > a.footnote {
  background-color: var(--footnote-target-bg);
}

a.reversefootnote {
  font-size: 0.6rem;
  line-height: 1;
  position: relative;
  bottom: 0.25em;
  margin-left: 0.25em;
  border-bottom-style: none !important;
}

/* --- Begin of Markdown table style --- */
/* it will be created by Liquid */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: 1.5rem;
  /* table */
}
.table-wrapper > table {
  min-width: 100%;
  overflow-x: auto;
  border-spacing: 0;
  /* tbody */
}
.table-wrapper > table thead {
  border-bottom: solid 2px rgba(210, 215, 217, 0.75);
}
.table-wrapper > table tbody tr {
  border-bottom: 1px solid var(--tb-border-color);
}
.table-wrapper > table tbody tr:nth-child(2n) {
  background-color: var(--tb-even-bg);
}
.table-wrapper > table tbody tr:nth-child(2n+1) {
  background-color: var(--tb-odd-bg);
}
/* --- post --- */
.post h1 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}
.post p > img[data-src]:not(.normal):not(.left):not(.right),
.post p > a.popup:not(.normal):not(.left):not(.right) {
  position: relative;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
}

.pageviews .fa-spinner {
  font-size: 80%;
}

.post-meta {
  font-size: 0.85rem;
  word-spacing: 1px;
}
.post-content {
  font-size: 1.08rem;
  margin-top: 2rem;
  overflow-wrap: break-word;
  /* ul */
}
.post-content a.popup {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  cursor: zoom-in;
}
.post-content ol:not([class]), .post-content ol.task-list,
.post-content ul:not([class]),
.post-content ul.task-list {
  -webkit-padding-start: 1.75rem;
  padding-inline-start: 1.75rem;
}
.post-content ol:not([class]) li, .post-content ol.task-list li,
.post-content ul:not([class]) li,
.post-content ul.task-list li {
  margin: 0.25rem 0;
  padding-left: 0.25rem;
}
.post-content ol:not([class]) ol,
.post-content ol:not([class]) ul, .post-content ol.task-list ol,
.post-content ol.task-list ul,
.post-content ul:not([class]) ol,
.post-content ul:not([class]) ul,
.post-content ul.task-list ol,
.post-content ul.task-list ul {
  -webkit-padding-start: 1.25rem;
  padding-inline-start: 1.25rem;
  margin: 0.5rem 0;
}
.post-content ul.task-list {
  -webkit-padding-start: 1.25rem;
  padding-inline-start: 1.25rem;
}
.post-content ul.task-list li {
  list-style-type: none;
  padding-left: 0;
  /* checkbox icon */
}
.post-content ul.task-list li > i {
  width: 2rem;
  margin-left: -1.25rem;
  color: var(--checkbox-color);
}
.post-content ul.task-list li > i.checked {
  color: var(--checkbox-checked-color);
}
.post-content ul.task-list li ul {
  -webkit-padding-start: 1.75rem;
  padding-inline-start: 1.75rem;
}
.post-content ul.task-list input[type=checkbox] {
  margin: 0 0.5rem 0.2rem -1.3rem;
  vertical-align: middle;
}
.post-content dl > dd {
  margin-left: 1rem;
}

/* .post-content */
.post-tag {
  display: inline-block;
  min-width: 2rem;
  text-align: center;
  background: var(--tag-bg);
  border-radius: 0.3rem;
  padding: 0 0.4rem;
  color: inherit;
  line-height: 1.3rem;
}
.post-tag:not(:last-child) {
  margin-right: 0.2rem;
}
.post-tag:hover {
  border-bottom: none;
  text-decoration: none;
  color: #d2603a;
}

.rounded-10 {
  border-radius: 10px !important;
}

.img-link {
  color: transparent;
  display: inline-flex;
  overflow: hidden;
}

.shimmer {
  overflow: hidden;
  position: relative;
  background: var(--img-bg);
}
.shimmer::before {
  content: "";
  position: absolute;
  background: var(--shimmer-bg);
  height: 100%;
  width: 100%;
  -webkit-animation: shimmer 1s infinite;
  animation: shimmer 1s infinite;
}
@-webkit-keyframes shimmer {
  0% {
    -webkit-transform: translateX(-100%);
    transform: translateX(-100%);
  }
  100% {
    -webkit-transform: translateX(100%);
    transform: translateX(100%);
  }
}
@keyframes shimmer {
  0% {
    -webkit-transform: translateX(-100%);
    transform: translateX(-100%);
  }
  100% {
    -webkit-transform: translateX(100%);
    transform: translateX(100%);
  }
}

.embed-video {
  width: 100%;
  height: 100%;
  margin-bottom: 1rem;
}
.embed-video.youtube {
  aspect-ratio: 16/9;
}
.embed-video.twitch {
  aspect-ratio: 310/189;
}

/* --- buttons --- */
.btn-lang {
  border: 1px solid !important;
  padding: 1px 3px;
  border-radius: 3px;
  color: var(--link-color);
}
.btn-lang:focus {
  box-shadow: none;
}

/* --- Effects classes --- */
.loaded {
  display: block !important;
}
.d-flex.loaded {
  display: flex !important;
}

.unloaded {
  display: none !important;
}

.visible {
  visibility: visible !important;
}

.hidden {
  visibility: hidden !important;
}

.flex-grow-1 {
  flex-grow: 1 !important;
}

.btn-box-shadow {
  box-shadow: 0 0 8px 0 var(--btn-box-shadow) !important;
}

.no-text-decoration {
  text-decoration: none;
}

/* Overrided BS4 Tooltip */
.tooltip-inner {
  font-size: 0.7rem;
  max-width: 220px;
  text-align: left;
}

.disabled {
  color: rgb(206, 196, 196);
  pointer-events: auto;
  cursor: not-allowed;
}

.hide-border-bottom {
  border-bottom: none !important;
}

.input-focus {
  box-shadow: none;
  border-color: var(--input-focus-border-color) !important;
  background: center !important;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.left {
  float: left;
  margin: 0.75rem 1rem 1rem 0 !important;
}

.right {
  float: right;
  margin: 0.75rem 0 1rem 1rem !important;
}

/* --- Overriding --- */
/* magnific-popup */
figure .mfp-title {
  text-align: center;
  padding-right: 0;
  margin-top: 0.5rem;
}

/* mermaid */
.mermaid {
  text-align: center;
}

/* MathJax */
mjx-container {
  overflow-y: hidden;
  min-width: auto !important;
}

/* --- sidebar layout --- */
#sidebar {
  padding-left: 0;
  padding-right: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  overflow-y: auto;
  width: 260px;
  z-index: 99;
  background: var(--sidebar-bg);
  /* Hide scrollbar for Chrome, Safari and Opera */
  /* Hide scrollbar for IE, Edge and Firefox */
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
  /* #avatar */
  /* ul */
  /* .sidebar-bottom */
}
#sidebar::-webkit-scrollbar {
  display: none;
}
#sidebar a:hover {
  text-decoration: none;
  color: var(--sidebar-active-color) !important;
}
#sidebar #avatar > a {
  display: block;
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  border: 2px solid rgba(222, 222, 222, 0.7);
  overflow: hidden;
  -webkit-transform: translateZ(0);
  transform: translateZ(0); /* fixed the zoom in Safari */
  transition: border-color 0.35s ease-in-out;
}
#sidebar #avatar > a:hover {
  border-color: white;
}
#sidebar #avatar img {
  width: 100%;
  height: 100%;
  transition: -webkit-transform 0.5s;
  transition: transform 0.5s;
  transition: transform 0.5s, -webkit-transform 0.5s;
}
#sidebar #avatar img:hover {
  -webkit-transform: scale(1.2);
  transform: scale(1.2);
}
#sidebar .site-title {
  margin-top: 0.55rem;
}
#sidebar .site-title a {
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0.5px;
  color: rgba(134, 133, 133, 0.99);
}
#sidebar .site-subtitle {
  font-size: 95%;
  color: var(--sidebar-muted-color);
  line-height: 1.25rem;
  word-spacing: 1px;
  margin: 0.2rem 1.5rem 0.5rem 1.5rem;
  min-height: 3rem; /* avoid vertical shifting in multi-line words */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
#sidebar .nav-link {
  border-radius: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 1px;
  display: table-cell;
  vertical-align: middle;
}
#sidebar .nav-link span::before {
  content: "";
  padding-left: 0.8rem;
}
#sidebar .nav-item {
  text-align: center;
  display: table;
  height: 3rem;
}
#sidebar .nav-item.active .nav-link {
  color: var(--sidebar-active-color);
}
#sidebar ul {
  height: 15rem;
  margin-bottom: 2rem;
  padding-left: 0;
  /* li */
  /* @for */
}
#sidebar ul li {
  width: 100%;
}
#sidebar ul li:last-child {
  /* the cursor */
}
#sidebar ul li:last-child a {
  position: relative;
  left: 1px;
  width: 100%;
}
#sidebar ul li:last-child::after {
  display: table;
  visibility: hidden;
  content: "";
  position: relative;
  right: 1px;
  width: 2px;
  height: 1.6rem;
  border-radius: 1px;
  background-color: var(--nav-cursor-color);
  pointer-events: none;
}
#sidebar ul > li.active:nth-child(1) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(1):hover ~ li:last-child::after {
  top: -11.3rem;
  visibility: visible;
}
#sidebar ul > li.active:nth-child(2) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(2):hover ~ li:last-child::after {
  top: -8.3rem;
  visibility: visible;
}
#sidebar ul > li.active:nth-child(3) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(3):hover ~ li:last-child::after {
  top: -5.3rem;
  visibility: visible;
}
#sidebar ul > li.active:nth-child(4) ~ li:last-child::after,
#sidebar ul > li.nav-item:nth-child(4):hover ~ li:last-child::after {
  top: -2.3rem;
  visibility: visible;
}
#sidebar ul > li.active:nth-child(5):last-child::after,
#sidebar ul > li.nav-item:nth-child(5):last-child:hover::after {
  top: 0.7rem;
  visibility: visible;
}
#sidebar .sidebar-bottom {
  margin-bottom: 2.1rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
#sidebar .sidebar-bottom .mode-toggle, #sidebar .sidebar-bottom a {
  width: 2.4rem;
  text-align: center;
}
#sidebar .sidebar-bottom i {
  font-size: 1.2rem;
  line-height: 1.75rem;
}
#sidebar .sidebar-bottom .mode-toggle {
  padding: 0;
  border: 0;
  margin-bottom: 1px;
  background-color: transparent;
}
#sidebar .sidebar-bottom .mode-toggle:hover > i {
  color: var(--sidebar-active-color);
}
#sidebar .sidebar-bottom .icon-border {
  background-color: var(--sidebar-muted-color);
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
}

/* #sidebar */
@media (hover: hover) {
  #sidebar ul > li:last-child::after {
    transition: top 0.5s ease;
  }
}
.profile-wrapper {
  margin-top: 2rem;
  width: 100%;
}

#search-result-wrapper {
  display: none;
  height: 100%;
  width: 100%;
  overflow: auto;
}
#search-result-wrapper .post-content {
  margin-top: 2rem;
}

/* --- top-bar --- */
#topbar-wrapper {
  height: 3rem;
  position: fixed;
  top: 0;
  left: 260px; /* same as sidebar width */
  right: 0;
  transition: top 0.2s ease-in-out;
  z-index: 50;
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  background-color: var(--topbar-wrapper-bg);
}
[data-topbar-visible=false] #topbar-wrapper {
  top: -3rem; /* same as topbar height. */
}

#topbar {
  /* icons */
}
#topbar i {
  color: #999999;
}
#topbar #breadcrumb {
  font-size: 1rem;
  color: gray;
  padding-left: 0.5rem;
}
#topbar #breadcrumb span:not(:last-child)::after {
  content: "›";
  padding: 0 0.3rem;
}

/* #topbar */
#sidebar-trigger,
#search-trigger {
  display: none;
}

#search-wrapper {
  display: flex;
  width: 100%;
  border-radius: 1rem;
  border: 1px solid var(--search-wrapper-border-color);
  background: var(--search-wrapper-bg);
  padding: 0 0.5rem;
}
#search-wrapper i {
  z-index: 2;
  font-size: 0.9rem;
  color: var(--search-icon-color);
}

/* 'Cancel' link */
#search-cancel {
  color: var(--link-color);
  margin-left: 1rem;
  display: none;
}

#search-input-top {
  background: center;
  border: 0;
  border-radius: 0;
  padding: 0.18rem 0.3rem;
  color: var(--text-color);
  height: auto;
}
#search-input-top:focus {
  box-shadow: none;
  background: center;
}
#search-input-top:focus.form-control::-moz-placeholder {
  opacity: 0.6;
}
#search-input-top:focus.form-control::-webkit-input-placeholder {
  opacity: 0.6;
}
#search-input-top:focus.form-control:-ms-input-placeholder {
  opacity: 0.6;
}
#search-input-top:focus.form-control::-ms-input-placeholder {
  opacity: 0.6;
}
#search-input-top:focus.form-control::placeholder {
  opacity: 0.6;
}

#search-hints {
  padding: 0 1rem;
}
#search-hints h4 {
  margin-bottom: 1.5rem;
}
#search-hints .post-tag {
  display: inline-block;
  line-height: 1rem;
  font-size: 1rem;
  background: var(--search-tag-bg);
  border: none;
  padding: 0.5rem;
  margin: 0 1.25rem 1rem 0;
}
#search-hints .post-tag::before {
  content: "#";
  color: var(--text-muted-color);
  padding-right: 0.2rem;
}

#search-results {
  padding-bottom: 3rem;
}
#search-results a {
  font-size: 1.4rem;
  line-height: 2.5rem;
}
#search-results > div {
  width: 100%;
  /* icons */
}
#search-results > div:not(:last-child) {
  margin-bottom: 1rem;
}
#search-results > div i {
  color: #818182;
  margin-right: 0.15rem;
  font-size: 80%;
}
#search-results > div > p {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* #search-results */
#topbar-title {
  display: none;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: sans-serif;
  color: var(--topbar-text-color);
  text-align: center;
  width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: keep-all;
  white-space: nowrap;
}

.row:only-child > #core-wrapper {
  padding-bottom: 3rem;
}

#mask {
  display: none;
  position: fixed;
  inset: 0 0 0 0;
  height: 100%;
  width: 100%;
  z-index: 1;
}
[sidebar-display] #mask {
  display: block !important;
}

/* --- main wrapper --- */
#main-wrapper {
  background-color: var(--main-bg);
  position: relative;
  min-height: calc(100vh - 5rem);
  padding-left: 0;
  padding-right: 0;
}

#core-wrapper,
#panel-wrapper {
  margin-top: 3rem; /* same as the height of topbar */
}

#topbar-wrapper.row,
#main > .row,
#search-result-wrapper > .row {
  margin-left: 0;
  margin-right: 0;
}

/* --- button back-to-top --- */
#back-to-top {
  display: none;
  z-index: 1;
  cursor: pointer;
  position: fixed;
  background: var(--button-bg);
  color: var(--btn-backtotop-color);
  padding: 0;
  width: 2.7em;
  height: 2.7em;
  border-radius: 50%;
  border: 1px solid var(--btn-backtotop-border-color);
  transition: -webkit-transform 0.2s ease-out;
  transition: transform 0.2s ease-out;
  transition: transform 0.2s ease-out, -webkit-transform 0.2s ease-out;
  -webkit-transition: transform 0.2s ease-out;
}
#back-to-top i {
  line-height: 2.7em;
  position: relative;
  bottom: 2px;
}

#back-to-top:hover {
  transform: translate3d(0, -5px, 0);
  -webkit-transform: translate3d(0, -5px, 0);
}

@-webkit-keyframes popup {
  from {
    opacity: 0;
    bottom: 0;
  }
}
@keyframes popup {
  from {
    opacity: 0;
    bottom: 0;
  }
}
#notification .toast-header {
  background: none;
  border-bottom: none;
  color: inherit;
}
#notification .toast-body {
  font-family: Lato, sans-serif;
  line-height: 1.25rem;
}
#notification .toast-body button {
  font-size: 90%;
  min-width: 4rem;
}
#notification.toast {
  display: none;
}
#notification.toast.show {
  display: block;
  min-width: 20rem;
  border-radius: 0.5rem;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.5);
  color: rgba(27, 27, 30, 0.7294117647);
  position: fixed;
  left: 50%;
  bottom: 20%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  -webkit-animation: popup 0.8s;
  animation: popup 0.8s;
}

/*
  Responsive Design:

 {sidebar, content, panel} >= 1120px screen width
 {sidebar, content} >= 850px screen width
 {content} <= 849px screen width

*/
@media all and (max-width: 576px) {
  footer {
    height: 6rem;
  }
  footer div.d-flex {
    padding: 1.5rem 0;
    line-height: 1.65;
    flex-wrap: wrap;
    justify-content: space-around !important;
  }
  footer .footer-left,
  footer .footer-right {
    text-align: center;
  }
  #main-wrapper {
    min-height: calc(100vh - 6rem);
  }
  #core-wrapper {
    min-height: calc(
      100vh - 3rem - 6rem
    ) !important;
  }
  #core-wrapper h1 {
    margin-top: 2.2rem;
    font-size: 1.75rem;
  }
  #core-wrapper .post-content > blockquote[class^=prompt-] {
    margin-left: -1.25rem;
    margin-right: -1.25rem;
    border-radius: 0;
    max-width: none;
  }
  #avatar > a {
    width: 5rem;
    height: 5rem;
  }
  .site-subtitle {
    margin-left: 1.8rem;
    margin-right: 1.8rem;
  }
}
@media all and (max-width: 768px) {
  #main, #topbar {
    max-width: 100%;
  }
  #main {
    padding-left: 0;
    padding-right: 0;
  }
}
/* hide sidebar and panel */
@media all and (max-width: 849px) {
  html,
  body {
    overflow-x: hidden;
  }
  footer {
    transition: transform 0.4s ease;
  }
  [sidebar-display] #sidebar {
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
  [sidebar-display] #topbar-wrapper,
  [sidebar-display] #main-wrapper,
  [sidebar-display] footer {
    -webkit-transform: translateX(260px);
    transform: translateX(260px);
  }
  #sidebar {
    transition: transform 0.4s ease;
    transform: translateX(-260px); /* hide */
    -webkit-transform: translateX(-260px);
  }
  #sidebar .cursor {
    transition: none;
  }
  #main-wrapper {
    transition: transform 0.4s ease;
    padding-top: 3rem;
  }
  #topbar,
  #main,
  footer > .container {
    max-width: 100%;
  }
  #search-result-wrapper {
    width: 100%;
  }
  #breadcrumb,
  #search-wrapper {
    display: none;
  }
  #topbar-wrapper {
    transition: transform 0.4s ease, top 0.2s ease;
    left: 0;
  }
  #core-wrapper,
  #panel-wrapper {
    margin-top: 0;
  }
  #topbar-title,
  #sidebar-trigger,
  #search-trigger {
    display: block;
  }
  #search-result-wrapper .post-content {
    letter-spacing: 0;
  }
  #tags {
    justify-content: center !important;
  }
  /* disable by zhaoyou
  h1.dynamic-title {
    display: none;

    ~ .post-content {
      margin-top: 3rem;
    }
  }
  */
} /* max-width: 849px */
@media all and (max-width: 849px) and (orientation: portrait) {
  [data-topbar-visible=false] #topbar-wrapper {
    top: 0;
  }
}
/* Phone & Pad */
@media all and (min-width: 577px) and (max-width: 1199px) {
  footer .d-flex > div {
    width: 312px;
  }
}
/* Sidebar is visible */
@media all and (min-width: 850px) {
  /* Solved jumping scrollbar */
  html {
    overflow-y: scroll;
  }
  #main-wrapper,
  footer {
    margin-left: 260px;
  }
  .profile-wrapper {
    margin-top: 3rem;
  }
  #search-hints {
    display: none;
  }
  #search-wrapper {
    max-width: 210px;
  }
  #search-result-wrapper {
    margin-top: 3rem;
    max-width: 1250px;
  }
  div.post-content .table-wrapper > table {
    min-width: 70%;
  }
  /* button 'back-to-Top' position */
  #back-to-top {
    bottom: 5.5rem;
    right: 5%;
  }
  #topbar-title {
    text-align: left;
  }
}
/* Pad horizontal */
@media all and (min-width: 992px) and (max-width: 1199px) {
  #main .col-lg-11 {
    flex: 0 0 96%;
    max-width: 96%;
  }
}
/* Compact icons in sidebar & panel hidden */
@media all and (min-width: 850px) and (max-width: 1199px) {
  #sidebar {
    width: 210px;
  }
  #sidebar .site-subtitle {
    margin-left: 1rem;
    margin-right: 1rem;
  }
  #sidebar .sidebar-bottom a,
  #sidebar .sidebar-bottom span {
    width: 2rem;
  }
  #sidebar .sidebar-bottom .icon-border {
    left: -3px;
  }
  #topbar-wrapper {
    left: 210px;
  }
  #search-results > div {
    max-width: 700px;
  }
  .site-title {
    font-size: 1.3rem;
    margin-left: 0 !important;
  }
  .site-subtitle {
    margin-left: 1rem;
    margin-right: 1rem;
    font-size: 90%;
  }
  #main-wrapper,
  footer {
    margin-left: 210px;
  }
  #breadcrumb {
    width: 65%;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: keep-all;
    white-space: nowrap;
  }
}
/* panel hidden */
@media all and (max-width: 1199px) {
  #panel-wrapper {
    display: none;
  }
  #main > div.row {
    justify-content: center !important;
  }
}
/* --- desktop mode, both sidebar and panel are visible --- */
@media all and (min-width: 1200px) {
  #back-to-top {
    bottom: 6.5rem;
  }
  #search-wrapper {
    margin-right: 4rem;
  }
  #search-input-top {
    transition: all 0.3s ease-in-out;
  }
  #search-results > div {
    width: 46%;
  }
  #search-results > div:nth-child(odd) {
    margin-right: 1.5rem;
  }
  #search-results > div:nth-child(even) {
    margin-left: 1.5rem;
  }
  #search-results > div:last-child:nth-child(odd) {
    position: relative;
    right: 24.3%;
  }
  .post-content {
    font-size: 1.03rem;
  }
  footer div.d-felx {
    width: 85%;
  }
}
@media all and (min-width: 1400px) {
  #back-to-top {
    right: calc((100vw - 260px - 1140px) / 2 + 3rem);
  }
}
@media all and (min-width: 1650px) {
  #main-wrapper,
  footer {
    margin-left: 350px;
  }
  #topbar-wrapper {
    left: 350px;
  }
  #search-wrapper {
    margin-right: calc(
      1250px * 0.25 - 210px
    );
  }
  #topbar,
  #main,
  footer > .container {
    max-width: 1250px;
  }
  #core-wrapper,
  #tail-wrapper {
    padding-right: 4.5rem !important;
  }
  #back-to-top {
    right: calc((100vw - 350px - 1250px) / 2 + 2rem);
  }
  #sidebar {
    width: 350px;
    /* .profile-wrapper (min-width: 1650px) */
    /* .sidebar-bottom */
  }
  #sidebar .profile-wrapper {
    margin-top: 4rem;
    margin-bottom: 1rem;
  }
  #sidebar .profile-wrapper.text-center {
    text-align: left !important;
  }
  #sidebar .profile-wrapper .site-subtitle, #sidebar .profile-wrapper .site-title, #sidebar .profile-wrapper #avatar {
    margin-left: 4.5rem;
  }
  #sidebar .profile-wrapper #avatar > a {
    width: 6.2rem;
    height: 6.2rem;
  }
  #sidebar .profile-wrapper #avatar > a.mx-auto {
    margin-left: 0 !important;
  }
  #sidebar .profile-wrapper .site-title {
    margin-top: 0.4rem;
  }
  #sidebar .profile-wrapper .site-title a {
    font-size: 1.7rem;
    letter-spacing: 1px;
  }
  #sidebar .profile-wrapper .site-subtitle {
    word-spacing: 0;
    margin-top: 0;
  }
  #sidebar ul {
    padding-left: 2.5rem;
  }
  #sidebar ul > li:last-child > a {
    position: static;
  }
  #sidebar ul .nav-item {
    text-align: left;
  }
  #sidebar ul .nav-item .nav-link > span {
    letter-spacing: 2px;
  }
  #sidebar ul .nav-item .nav-link > i.unloaded {
    display: inline-block !important;
  }
  #sidebar .sidebar-bottom {
    padding-left: 3.5rem;
    width: 100%;
  }
  #sidebar .sidebar-bottom.justify-content-center {
    justify-content: flex-start !important;
  }
  #sidebar .sidebar-bottom > span,
  #sidebar .sidebar-bottom > button.mode-toggle,
  #sidebar .sidebar-bottom > a {
    margin-left: 0.15rem;
    margin-right: 0.15rem;
    height: 2rem;
    margin-bottom: 0.5rem; /* wrap line */
  }
  #sidebar .sidebar-bottom i {
    background-color: var(--sidebar-btn-bg);
    font-size: 1rem;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    position: relative;
  }
  #sidebar .sidebar-bottom i::before {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
  }
  #sidebar .sidebar-bottom .icon-border {
    top: 0.9rem;
  }
  /* #sidebar */
} /* min-width: 1650px */
/*
  Style for Homepage
*/
.pagination {
  color: var(--btn-patinator-text-color);
  font-family: Lato, sans-serif;
  /* .page-item */
}
.pagination a:hover {
  text-decoration: none;
}
.pagination .page-item .page-link {
  color: inherit;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  display: -webkit-box;
  -webkit-box-pack: center;
  -webkit-box-align: center;
  border-radius: 50%;
  border: 1px solid var(--btn-paginator-border-color);
  background-color: var(--button-bg);
}
.pagination .page-item .page-link:hover {
  background-color: var(--btn-paginator-hover-color);
}
.pagination .page-item.active .page-link {
  background-color: var(--btn-paginator-hover-color);
  color: var(--btn-text-color);
}
.pagination .page-item.disabled {
  cursor: not-allowed;
}
.pagination .page-item.disabled .page-link {
  color: rgba(108, 117, 125, 0.57);
  border-color: var(--btn-paginator-border-color);
  background-color: var(--button-bg);
}
.pagination .page-item:first-child .page-link, .pagination .page-item:last-child .page-link {
  border-radius: 50%;
}

/* .pagination */
#post-list {
  margin-top: 1.75rem;
  padding-right: 0.5rem;
  /* .post-preview */
}
#post-list a:hover {
  text-decoration: none;
}
#post-list .card-body .card-title {
  font-size: 1.25rem;
}
#post-list .post-preview {
  padding: 0.25rem;
  border-radius: 0.75rem;
  border: 1px solid var(--card-border-color);
  background: var(--card-bg);
}
#post-list .post-preview:hover {
  background: var(--card-hovor-bg);
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}
#post-list .post-preview:not(:last-child) {
  margin-bottom: 1.75rem;
}
#post-list .post-preview h1 {
  font-size: 1.4rem;
  margin: 0;
}
#post-list .post-preview .post-meta i {
  font-size: 0.73rem;
}
#post-list .post-preview .post-meta i:not(:first-child) {
  margin-left: 1.2rem;
}
#post-list .post-preview .post-meta .pin i {
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  padding-left: 3px;
  color: var(--pin-color);
}
#post-list .post-preview .post-meta .pin span {
  display: none;
}
#post-list .post-preview .post-content {
  margin-top: 0.6rem;
  margin-bottom: 0.6rem;
  color: var(--post-list-text-color);
}
#post-list .post-preview .post-content > p {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* #post-list */
@media (hover: hover) {
  .post-preview {
    transition: all 0.35s ease-in-out;
  }
}
/* Hide SideBar and TOC */
@media all and (max-width: 830px) {
  .post-preview {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }
  .pagination {
    justify-content: space-evenly;
  }
  .pagination .page-item:not(:first-child):not(:last-child) {
    display: none;
  }
}
/* Sidebar is visible */
@media all and (min-width: 831px) {
  #post-list {
    margin-top: 3rem;
  }
  #post-list .post-preview {
    padding: 0.5rem;
  }
  #post-list .post-preview .post-meta .pin {
    background: var(--pin-bg);
    border-radius: 5px;
    line-height: 1.4rem;
    height: 1.3rem;
    margin-top: 3px;
    padding-left: 1px;
    padding-right: 6px;
  }
  #post-list .post-preview .post-meta .pin > span {
    display: inline;
  }
  .pagination {
    font-size: 0.85rem;
  }
  .pagination .page-item:not(:last-child) {
    margin-right: 0.7rem;
  }
  .pagination .page-item .page-link {
    width: 2rem;
    height: 2rem;
  }
  .pagination .page-index {
    display: none;
  }
  /* .pagination */
}
/* Panel hidden */
@media all and (max-width: 1200px) {
  #post-list {
    padding-right: 0;
  }
}
/*
  Post-specific style
*/
#related-posts .card h4, h1 + .post-meta em a, h1 + .post-meta em, footer a {
  color: var(--text-color);
}

.preview-img:not(.no-bg) img.lazyloaded {
  background: var(--img-bg);
}
.preview-img img {
  aspect-ratio: 40/21;
  -o-object-fit: cover;
  object-fit: cover;
}

h1 + .post-meta span + span::before {
  content: "•";
  padding-left: 0.25rem;
  padding-right: 0.25rem;
}
.post-tail-wrapper {
  margin-top: 6rem;
  border-bottom: 1px double var(--main-border-color);
  font-size: 0.85rem;
  /* .license-wrapper */
  /* .share-wrapper */
}
.post-tail-wrapper .post-tail-bottom a {
  color: inherit;
}
.post-tail-wrapper .license-wrapper {
  line-height: 1.2rem;
}
.post-tail-wrapper .license-wrapper > a {
  color: var(--text-color);
}
.post-tail-wrapper .license-wrapper span:last-child {
  font-size: 0.85rem;
}
.post-tail-wrapper .share-wrapper {
  vertical-align: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  /* .share-icons */
}
.post-tail-wrapper .share-wrapper .share-icons {
  font-size: 1.2rem;
}
.post-tail-wrapper .share-wrapper .share-icons > i {
  position: relative;
  bottom: 1px;
}
.post-tail-wrapper .share-wrapper .share-icons a:not(:last-child) {
  margin-right: 0.25rem;
}
.post-tail-wrapper .share-wrapper .share-icons a:hover {
  text-decoration: none;
}
.post-tail-wrapper .share-wrapper .share-icons .fab.fa-twitter {
  color: var(--btn-share-color, rgb(29, 161, 242));
}
.post-tail-wrapper .share-wrapper .share-icons .fab.fa-facebook-square {
  color: var(--btn-share-color, rgb(66, 95, 156));
}
.post-tail-wrapper .share-wrapper .share-icons .fab.fa-telegram {
  color: var(--btn-share-color, rgb(39, 159, 217));
}
.post-tail-wrapper .share-wrapper .share-icons .fab.fa-linkedin {
  color: var(--btn-share-color, rgb(0, 119, 181));
}
.post-tail-wrapper .share-wrapper .share-icons .fab.fa-weibo {
  color: var(--btn-share-color, rgb(229, 20, 43));
}
.post-tail-wrapper .share-wrapper .fas.fa-link {
  color: var(--btn-share-color, rgb(171, 171, 171));
}

.post-tags {
  line-height: 2rem;
}

.post-navigation {
  padding-top: 3rem;
  padding-bottom: 4rem;
}
.post-navigation .btn {
  width: 50%;
  position: relative;
  border-color: var(--btn-border-color);
  color: var(--link-color);
}
.post-navigation .btn:hover {
  background: #2a408e;
  color: #ffffff;
  border-color: #2a408e;
}
.post-navigation .btn.disabled {
  width: 50%;
  position: relative;
  border-color: var(--btn-border-color);
  pointer-events: auto;
  cursor: not-allowed;
  background: none;
  color: gray;
}
.post-navigation .btn.disabled:hover {
  border-color: none;
}
.post-navigation .btn.btn-outline-primary.disabled:focus {
  box-shadow: none;
}
.post-navigation .btn::before {
  color: var(--text-muted-color);
  font-size: 0.65rem;
  text-transform: uppercase;
  content: attr(prompt);
}
.post-navigation .btn:first-child {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  left: 0.5px;
}
.post-navigation .btn:last-child {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  right: 0.5px;
}
.post-navigation p {
  font-size: 1.1rem;
  line-height: 1.5rem;
  margin-top: 0.3rem;
  white-space: normal;
}

/* .post-navigation */
@-webkit-keyframes fade-up {
  from {
    opacity: 0;
    position: relative;
    top: 2rem;
  }
  to {
    opacity: 1;
    position: relative;
    top: 0;
  }
}
@keyframes fade-up {
  from {
    opacity: 0;
    position: relative;
    top: 2rem;
  }
  to {
    opacity: 1;
    position: relative;
    top: 0;
  }
}
#toc-wrapper {
  border-left: 1px solid rgba(158, 158, 158, 0.17);
  position: -webkit-sticky;
  position: sticky;
  top: 4rem;
  transition: top 0.2s ease-in-out;
  -webkit-animation: fade-up 0.8s;
  animation: fade-up 0.8s;
}
#toc-wrapper ul {
  list-style: none;
  font-size: 0.85rem;
  line-height: 1.25;
  padding-left: 0;
  /* Overwrite TOC plugin style */
}
#toc-wrapper ul li:not(:last-child) {
  margin: 0.4rem 0;
}
#toc-wrapper ul li a {
  padding: 0.2rem 0 0.2rem 1.25rem;
}
#toc-wrapper ul .toc-link {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#toc-wrapper ul .toc-link:hover {
  color: var(--toc-highlight);
  text-decoration: none;
}
#toc-wrapper ul .toc-link::before {
  display: none;
}
#toc-wrapper ul .is-active-link {
  color: var(--toc-highlight) !important;
  font-weight: 600;
}
#toc-wrapper ul .is-active-link::before {
  display: inline-block;
  width: 1px;
  left: -1px;
  height: 1.25rem;
  background-color: var(--toc-highlight) !important;
}
#toc-wrapper ul ul a {
  padding-left: 2rem;
}

/* --- Related Posts --- */
#related-posts > h3 {
  color: var(--label-color);
  font-size: 1.1rem;
  font-weight: 600;
}
#related-posts em {
  color: var(--relate-post-date);
}
#related-posts p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
#related-posts a:hover {
  text-decoration: none;
}
#related-posts .card {
  border-color: var(--card-border-color);
  background-color: var(--card-bg);
  box-shadow: 0 0 5px 0 var(--card-box-shadow);
  transition: all 0.3s ease-in-out;
  border-radius: 8px;
}
#related-posts .card:hover {
  background-color: var(--card-box-shadow);
}
#related-posts .card .card-body {
  min-height: 8rem;
  padding: 1rem;
}

#tail-wrapper {
  min-height: 2rem;
  /* stylelint-disable-next-line selector-id-pattern */
}
#tail-wrapper > div:last-of-type {
  margin-bottom: 2rem;
}
#tail-wrapper #disqus_thread {
  min-height: 8.5rem;
}

.post-tail-wrapper .share-wrapper .share-icons > i:hover, .post-tail-wrapper .share-wrapper .share-icons a:hover > i {
  color: var(--btn-share-hover-color) !important;
}

.share-label {
  color: inherit;
  font-size: inherit;
  font-weight: 400;
}
.share-label::after {
  content: ":";
}

@media all and (max-width: 576px) {
  .preview-img[data-src] {
    margin-top: 2.2rem;
  }
  .post-tail-bottom {
    flex-wrap: wrap-reverse !important;
  }
  .post-tail-bottom > div:first-child {
    width: 100%;
    margin-top: 1rem;
  }
}
@media all and (max-width: 768px) {
  .post-content > p > img {
    max-width: calc(100% + 1rem);
  }
}
/* Hide SideBar and TOC */
@media all and (max-width: 849px) {
  .post-navigation {
    padding-left: 0;
    padding-right: 0;
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }
  .preview-img[data-src] {
    max-width: 100vw;
    border-radius: 0;
  }
}
/*
  Styles for Tab Tags
*/
.tag {
  border-radius: 0.7em;
  padding: 6px 8px 7px;
  margin-right: 0.8rem;
  line-height: 3rem;
  letter-spacing: 0;
  border: 1px solid var(--tag-border) !important;
  box-shadow: 0 0 3px 0 var(--tag-shadow);
}
.tag span {
  margin-left: 0.6em;
  font-size: 0.7em;
  font-family: Oswald, sans-serif;
}

/*
  Style for Archives
*/
#archives {
  letter-spacing: 0.03rem;
  /* #archives ul */
}
#archives ul li::before, #archives .year:first-child::before, #archives .year::before {
  content: "";
  width: 1px;
  position: relative;
  float: left;
  background-color: var(--timeline-color);
}
#archives .year {
  height: 3.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  position: relative;
  left: -15px;
  margin-left: -1px;
}
#archives .year::before {
  height: 75px;
  left: 22px;
  bottom: 16px;
}
#archives .year:first-child::before {
  height: 24px;
  top: 34px;
}
#archives .title-month {
  white-space: nowrap;
  display: inline-block;
  position: relative;
  right: 0.5rem;
  left: -16px;
  font-size: 80%;
  font-weight: 600;
  width: 2.5rem;
  text-align: center;
  border-radius: 2px;
  background-color: var(--timeline-color);
}
#archives ul li {
  font-size: 1.1rem;
  line-height: 3rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#archives ul li:nth-child(odd) {
  background-color: var(--main-bg, #ffffff);
  background-image: linear-gradient(to left, #ffffff, #fbfbfb, #fbfbfb, #fbfbfb, #ffffff);
}
#archives ul li::before {
  top: 0;
  left: 6px;
  height: 3.1rem;
}
#archives ul:last-child li:last-child::before {
  height: 1.5rem;
}
#archives .date {
  white-space: nowrap;
  display: inline-block;
  position: relative;
  right: 0.5rem;
  left: 50px;
  font-weight: 600;
}
#archives .date.month {
  width: 1.35rem;
  text-align: center;
}
#archives .date.day {
  font-size: 85%;
  font-family: Lato, sans-serif;
}
#archives a {
  /* post title in Archvies */
  margin-left: 2.5rem;
  position: relative;
  top: 0.1rem;
  left: 30px;
}
#archives a:hover {
  border-bottom: none;
}
#archives a::before {
  /* the dot before post title */
  content: "";
  display: inline-block;
  position: relative;
  width: 5px;
  height: 1px;
  float: left;
  top: 1.35rem;
  left: 12px;
  background-color: var(--timeline-node-bg);
  box-shadow: 0 0 3px 0 #c2c6cc;
  z-index: 1;
}

/* #archives */
@media all and (max-width: 576px) {
  #archives {
    margin-top: -1rem;
  }
  #archives ul {
    letter-spacing: 0;
  }
}
/*
  Style for Tab Categories
*/
.categories i {
  color: gray;
}

.categories {
  margin-bottom: 2rem;
}
.categories .card-header {
  padding-right: 12px;
}
.categories i {
  font-size: 86%; /* fontawesome icons */
}
.categories .list-group-item {
  border-left: none;
  border-right: none;
  padding-left: 2rem;
}
.categories .list-group-item:first-child {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

/* .categories */
.category-trigger {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  text-align: center;
  color: #6c757d !important;
}
.category-trigger i {
  position: relative;
  height: 0.7rem;
  width: 1rem;
  transition: -webkit-transform 300ms ease;
  transition: transform 300ms ease;
  transition: transform 300ms ease, -webkit-transform 300ms ease;
}
.category-trigger:hover i {
  color: var(--categories-icon-hover-color);
}

/* only works on desktop */
@media (hover: hover) {
  .category-trigger:hover {
    background-color: var(--categories-hover-bg);
  }
}
.rotate {
  -webkit-transform: rotate(-90deg);
  transform: rotate(-90deg);
}

/*
  Style for page Category and Tag
*/
.dash {
  margin: 0 0.5rem 0.6rem 0.5rem;
  border-bottom: 2px dotted var(--dash-color);
}

#page-category ul > li,
#page-tag ul > li {
  line-height: 1.5rem;
  padding: 0.6rem 0;
  /* dot */
  /* post's title */
  /* post's date */
}
#page-category ul > li::before,
#page-tag ul > li::before {
  background: #999999;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  display: block;
  content: "";
  position: relative;
  top: 0.6rem;
  margin-right: 0.5rem;
}
#page-category ul > li > a,
#page-tag ul > li > a {
  font-size: 1.1rem;
}
#page-category ul > li > span:last-child,
#page-tag ul > li > span:last-child {
  white-space: nowrap;
}

/* tag icon */
#page-tag h1 > i {
  font-size: 1.2rem;
}

#page-category h1 > i {
  font-size: 1.25rem;
}

#page-category a:hover,
#page-tag a:hover,
#access-lastmod a:hover {
  margin-bottom: -1px; /* Avoid jumping */
}

@media all and (max-width: 576px) {
  #page-category ul > li::before,
  #page-tag ul > li::before {
    margin: 0 0.5rem;
  }
  #page-category ul > li > a,
  #page-tag ul > li > a {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}
/********* 代码高亮 begin ********/
/* append your custom style below */
.highlight .lineno {
  color: #999999;
}

.code-header {
  /* the label block */
}
.code-header::before {
  background-color: #ED6C5F;
  box-shadow: 1.25rem 0 0 #F4BF4F, 2.5rem 0 0 #62C655;
}
.code-header span {
  /* label icon */
  /* label text */
}
.code-header span i {
  color: #999999;
}
.code-header span::after {
  color: #999999;
}
.code-header button i {
  color: #999999;
}

/********* 代码高亮 end ********/
/********* 缩略图 begin *******/
.card-thumb-small {
  border-radius: 6px;
  margin-right: 20px;
  height: 120px;
  display: block;
  object-fit: cover;
  float: left;
}

.card-thumb-medium {
  width: 100%;
  margin-bottom: 15px;
  border-radius: 6px;
  max-height: 125px;
  display: block;
  object-fit: cover;
  float: left;
}

.card-thumb-large {
  width: 100%;
  margin-bottom: 15px;
  border-radius: 6px;
  max-height: 300px;
  display: block;
  object-fit: cover;
  float: left;
}

/* Hide SideBar and TOC */
@media all and (max-width: 830px) {
  .card-thumb-small {
    width: 100%;
    margin-bottom: 15px;
  }
}
/* Sidebar is visible */
@media all and (min-width: 831px) {
  .card-thumb-small {
    width: 26%;
  }
}
/******** 缩略图 end ********/
h1.dynamic-title {
  text-align: center;
}

.page_not_found {
  margin-top: 80px;
  text-align: center;
}

.search-highlight {
  font-weight: bold;
  background-color: #F4BF4F;
}

.btn-outline-primary {
  border-radius: 8px;
}
.btn-outline-primary:not(.disabled):hover {
  border-color: #007bff !important;
  background-color: #007bff;
}

iframe {
  display: block;
  border: none;
  height: 60vh; /*设置高度百分比,一直调到只有一个滚动调为止*/
  width: 100%;
}

/*# sourceMappingURL=style.css.map */