/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
/* Document
   ========================================================================== */
/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */
html {
  line-height: 1.15;
  /* 1 */
  -webkit-text-size-adjust: 100%;
  /* 2 */
}

/* Sections
   ========================================================================== */
/**
 * Remove the margin in all browsers.
 */
body {
  margin: 0;
}

/**
 * Render the `main` element consistently in IE.
 */
main {
  display: block;
}

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

/* Grouping content
   ========================================================================== */
/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */
hr {
  -webkit-box-sizing: content-box;
  box-sizing: content-box;
  /* 1 */
  height: 0;
  /* 1 */
  overflow: visible;
  /* 2 */
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
pre {
  /* stylelint-disable */
  font-family: monospace, monospace;
  /* 1 */
  /* stylelint-enable */
  font-size: 1em;
  /* 2 */
}

/* Text-level semantics
   ========================================================================== */
/**
 * Remove the gray background on active links in IE 10.
 */
a {
  background-color: transparent;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */
abbr[title] {
  border-bottom: none;
  /* 1 */
  /* stylelint-disable */
  text-decoration: underline;
  /* 2 */
  -webkit-text-decoration: underline dotted;
  text-decoration: underline dotted;
  /* 2 */
  /* stylelint-enable */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */
b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
code,
kbd,
samp {
  /* stylelint-disable */
  font-family: monospace, monospace;
  /* 1 */
  /* stylelint-enable */
  font-size: 1em;
  /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */
small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content
   ========================================================================== */
/**
 * Remove the border on images inside links in IE 10.
 */
img {
  border-style: none;
}

/* Forms
   ========================================================================== */
/**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */
button,
input,
optgroup,
select,
textarea {
  font-family: inherit;
  /* 1 */
  font-size: 100%;
  /* 1 */
  line-height: 1.15;
  /* 1 */
  margin: 0;
  /* 2 */
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */
button,
input {
  /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */
button,
select {
  /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */
button,
[type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}

/**
 * Remove the inner border and padding in Firefox.
 */
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/**
 * Restore the focus styles unset by the previous rule.
 */
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Correct the padding in Firefox.
 */
fieldset {
  padding: 0.35em 0.75em 0.625em;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */
legend {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  /* 1 */
  color: inherit;
  /* 2 */
  display: table;
  /* 1 */
  max-width: 100%;
  /* 1 */
  padding: 0;
  /* 3 */
  white-space: normal;
  /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */
progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */
textarea {
  overflow: auto;
}

/**
 * 1. Add the correct box sizing in IE 10.
 * 2. Remove the padding in IE 10.
 */
[type="checkbox"],
[type="radio"] {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  /* 1 */
  padding: 0;
  /* 2 */
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */
[type="search"] {
  -webkit-appearance: textfield;
  /* 1 */
  outline-offset: -2px;
  /* 2 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */
[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */
::-webkit-file-upload-button {
  -webkit-appearance: button;
  /* 1 */
  font: inherit;
  /* 2 */
}

/* Interactive
   ========================================================================== */
/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */
details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */
summary {
  display: list-item;
}

/* Misc
   ========================================================================== */
/**
 * Add the correct display in IE 10+.
 */
template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */
[hidden] {
  display: none;
}

/*-----------------------*
		Reset
*-----------------------*/
* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
li,
figure,
figcaption,
blockquote,
dl,
dd {
  margin: 0;
}

a {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

input,
button,
textarea,
select {
  font: inherit;
}

button {
  background-color: transparent;
  color: inherit;
  border-width: 0;
  padding: 0;
  cursor: pointer;
}

input::-moz-focus-inner {
  border: 0;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

cite {
  font-style: normal;
}

fieldset {
  border-width: 0;
  margin: 0;
  padding: 0;
}

/*-----------------------*
		Element v1.0.0-custom
*-----------------------*/
* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

:root {
  font-size: 100%;
  line-height: 2;
  color: #000;
  font-family: var(--custom-font-family-base, -apple-system, BlinkMacSystemFont, Helvetica Neue, Helvetica, Arial, PingFang SC, Hiragino Sans GB, Microsoft YaHei, sans-serif);
  -webkit-font-feature-settings: 'pwid';
  font-feature-settings: 'pwid';
}

body {
  background-color: #fafafa;
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--custom-font-family-headings, -apple-system, BlinkMacSystemFont, Helvetica Neue, Helvetica, Arial, PingFang SC, Hiragino Sans GB, Microsoft YaHei, sans-serif);
  font-weight: bold;
  line-height: 2;
}

h1 > small,
h2 > small,
h3 > small,
h4 > small,
h5 > small,
h6 > small {
  font-size: 75%;
  font-weight: normal;
}

h1 {
  font-size: 240%;
  line-height: 1.41667;
}

h2 {
  font-size: 200%;
  line-height: 1.5;
}

h3 {
  font-size: 160%;
  line-height: 1.625;
}

h4 {
  font-size: 140%;
  line-height: 1.71429;
}

h5 {
  font-size: 120%;
  line-height: 1.83333;
}

h6 {
  font-size: 100%;
  line-height: 2;
}

a {
  color: var(--custom-link-text-color, #2e7eb3);
  text-decoration: none;
}

a:focus, a:active, a:hover {
  color: var(--custom-link-text-hover-color, #38a0e4);
  text-decoration: underline;
}

hr {
  background-color: #ccc;
  height: 2px;
  border: 0;
}

p {
  font-size: 100%;
}

img {
  display: inline-block;
  line-height: 0;
}

img,
video {
  height: auto;
  max-width: 100%;
}

table {
  border-collapse: collapse;
  border: 1px solid #f0f0f0;
  width: 100%;
}

th,
td {
  border-top: 1px solid #f0f0f0;
  border-right: 1px solid #f0f0f0;
  padding: .6rem;
}

tr:nth-child(even) th, tr:nth-child(even)
td {
  background: #f8f8f8;
}

th {
  background: #eee;
  font-weight: bold;
  text-align: left;
}

ul {
  list-style-type: disc;
}

ul.no-style, .ais-Pagination-list {
  list-style: none;
  padding-left: 0;
}

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

ul.inline li {
  display: inline;
  padding-right: 2rem;
}

dt {
  font-weight: bold;
}

dd {
  margin-left: 2rem;
}

blockquote {
  color: #999;
  padding: 1.28rem;
  background-color: #f4f4f4;
  border-left: 4px solid #f0f0f0;
  border-radius: .2rem;
}

code,
pre,
kbd {
  font-family: Menlo, Monaco, "Courier New", monospace;
}

code,
kbd {
  padding: .2rem;
  border-radius: .2rem;
}

code {
  background-color: #f4f4f4;
}

kbd {
  color: #fff;
  background-color: #333;
}

pre {
  background-color: #f4f4f4;
  padding: 1.28rem;
  overflow: auto;
  white-space: pre-wrap;
  border-radius: .2rem;
}

pre code {
  padding: 0;
  background-color: unset;
}

pre.wrap {
  white-space: pre;
  white-space: pre-wrap;
  word-break: break-all;
  word-wrap: break-word;
}

pre.scrollable {
  max-height: 240px;
  overflow-y: scroll;
}

figcaption {
  color: #333;
  font-size: 100%;
  line-height: 2;
}

/*-----------------------*
		stack
*-----------------------*/
.stack-first, main * {
  margin-top: 0;
  margin-bottom: 0;
}

.stack, main * + h1, main * + h2, main * + h3, main * + h4, main * + h5, main * + h6,
main * + p,
main * + hr,
main * + table,
main * + ul,
main * + ol,
main * + dl,
main * + blockquote,
main * + pre,
main * + figure, .table_of_contents,
.edit-meta,
.edit-page,
.pagination,
.highlight,
.powered,
.panel,
.button,
.gist,
.twitter-tweet, .ais-Hits-item {
  margin-top: 1.28rem;
}

.stack--by2 {
  margin-top: 2.56rem;
}

.stack--by4 {
  margin-top: 5.12rem;
}

.stack-reset, figure > figcaption, .pagination > * {
  margin-top: 0;
}

.stack-unset, main li > ul,
main li > ol, .ais-Hits-item p {
  margin-top: unset;
  margin-bottom: unset;
}

/*-----------------------*
		Structure
*-----------------------*/
html,
body {
  height: 100%;
}

.container {
  width: 100%;
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-flow: column nowrap;
  flex-flow: column nowrap;
  margin: auto;
}

.content-container {
  -webkit-box-flex: 1;
  -ms-flex: 1 0 auto;
  flex: 1 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

main {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 75%;
  flex: 0 0 75%;
  max-width: 75%;
}

.sidebar {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 25%;
  flex: 0 0 25%;
  -webkit-box-ordinal-group: 0;
  -ms-flex-order: -1;
  order: -1;
  overflow-x: hidden;
  overflow-y: scroll;
}

@media screen and (max-width: 480px) {
  .content-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-flow: column nowrap;
    flex-flow: column nowrap;
  }
  main {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    min-width: 100%;
  }
  .sidebar {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    -webkit-box-ordinal-group: 2;
    -ms-flex-order: 1;
    order: 1;
  }
}

.pagination {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: nowrap;
  flex-wrap: nowrap;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  font-weight: bold;
}

.nav-next {
  margin-left: auto;
}

@media screen and (max-width: 480px) {
  .pagination {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-flow: column nowrap;
    flex-flow: column nowrap;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  .nav-next {
    margin-left: 0;
  }
}

.panel {
  padding: 1.28rem;
}

.panel-primary {
  border: 1px solid #f0f0f0;
}

.panel-notice {
  color: #fff;
  background: #4ba0e1;
}

.panel-success {
  color: #fff;
  background: #609f43;
}

.panel-caution {
  color: #fff;
  background: #de776d;
}

.panel-warning {
  color: #fff;
  background: #e67e22;
}

.panel-danger {
  color: #fff;
  background: #ce3426;
}

.button {
  display: inline-block;
  font-size: 120%;
  padding: .8rem;
  font-weight: bold;
  text-decoration: none;
  border-radius: 12px;
  color: #fff;
  background: #4ba0e1;
}

.button:hover {
  color: #fff;
  text-decoration: none;
  background: #3b89c5;
}

.button-primary {
  border: 1px solid #f0f0f0;
}

.button-success {
  background: #369b08;
}

.button-success:hover {
  background: #256905;
}

.button-caution {
  background: #f56558;
}

.button-caution:hover {
  background: #d45145;
}

.button-warning {
  background: #f5811b;
}

.button-warning:hover {
  background: #db7012;
}

.button-danger {
  background: #ce3426;
}

.button-danger:hover {
  background: #a0281d;
}

.notification {
  padding: 0.2rem 1.28rem;
  text-align: center;
  background: #eee;
}

.backtothetop {
  display: none;
  font-size: 200%;
}

.fa-layers .fa-circle {
  color: #fff;
}

figure > figcaption h4 {
  font-size: 80%;
  font-weight: normal;
}

.table_of_contents {
  font-size: 90%;
  padding: 1.28rem;
  border: 4px solid #f0f0f0;
}

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

.table_of_contents li {
  border-top: 1px solid #f0f0f0;
}

.table_of_contents > nav > ul > li:first-child {
  border-top: unset;
}

.table_of_contents ul > li li a {
  margin-left: 2rem;
}

.table_of_contents ul ul > li li a {
  margin-left: 4rem;
}

.table_of_contents ul ul ul > li li a {
  margin-left: 6rem;
}

.table_of_contents ul ul ul ul > li li a {
  margin-left: 8rem;
}

.table_of_contents ul ul ul ul ul > li li a {
  margin-left: 10rem;
}

.ais-SearchBox .ais-SearchBox-input {
  width: 70%;
}

.ais-SearchBox button {
  margin-left: .2rem;
  padding: .4rem;
}

.ais-Stats {
  font-size: 80%;
  color: #70757a;
}

.ais-Hits-item h3 {
  font-size: 140%;
  font-weight: normal;
}

.ais-Hits-item p {
  color: #3C4043;
}

.ais-Hits-item .lastmod {
  font-size: 90%;
  color: #70757a;
}

.ais-Pagination {
  margin-top: 1em;
}

.ais-Pagination-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.ais-Pagination-item {
  padding: .6rem;
}

header {
  color: var(--custom-font-color, #fff);
  background: var(--custom-background-color, #000);
  padding: 0.5rem 1.28rem;
}

header h1 {
  font-size: 140%;
  display: inline-block;
}

header .version {
  font-size: 80%;
}

header .github {
  color: currentColor;
  margin-left: .4rem;
  font-size: 180%;
}

.global-menu {
  color: var(--custom-font-color, #fff);
  background: var(--custom-background-color, #000);
  padding: 0.2rem 1.28rem;
}

.global-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.global-menu li {
  display: inline-block;
  margin-right: 1.8rem;
  position: relative;
}

.global-menu ul.sub-menu {
  display: none;
  margin: 0;
  position: absolute;
  top: 1.8rem;
  left: 0;
  z-index: 99999;
}

.global-menu ul.sub-menu li {
  padding: 0.2rem 1.28rem;
  background: var(--custom-background-color, #000);
  width: 140px;
  font-size: 80%;
}

.global-menu ul.sub-menu li a {
  color: var(--custom-font-color, #fff);
}

.global-menu .fa-angle-right {
  margin-left: .4rem;
  font-size: 80%;
}

.global-menu li.parent:hover > ul.sub-menu {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-flow: column nowrap;
  flex-flow: column nowrap;
}

@media screen and (max-width: 480px) {
  .global-menu li {
    display: block;
    margin-right: 0;
    border-bottom: 1px solid currentColor;
  }
  .global-menu li:last-child {
    border-bottom: none;
  }
  .global-menu .fa-angle-right {
    display: none;
  }
  .global-menu ul.sub-menu {
    display: block;
    position: static;
  }
  .global-menu ul.sub-menu li {
    width: auto;
    background: transparent;
    padding: 0 .4rem;
  }
  .global-menu ul.sub-menu li + li {
    padding-top: .2rem;
  }
  .global-menu ul.sub-menu li a {
    color: currentColor;
  }
}

.global-menu a {
  display: block;
  color: currentColor;
  text-decoration: none;
}

.global-menu a:hover {
  text-decoration: underline;
}

main {
  padding: 3rem;
}

@media screen and (max-width: 480px) {
  main {
    padding: 1rem;
  }
}

.sidebar {
  font-size: 90%;
  line-height: 1.8;
  background: #f9f9f9;
  border-right: 1px solid #eee;
}

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

.sidebar a {
  position: relative;
  display: block;
  color: #404040;
  text-decoration: none;
  padding: .2rem 1rem;
  border-left: solid 4px #f9f9f9;
  border-bottom: solid 1px #eee;
}

.sidebar a:hover {
  color: #404040;
  background: #eee;
  border-left: solid 4px #ccc;
}

.sidebar nav > ul > li li a {
  padding-left: 2rem;
}

.sidebar nav > ul ul > li li a {
  padding-left: 3rem;
}

@media screen and (max-width: 480px) {
  .sidebar nav > ul > li:first-child a {
    border-top: solid 1px #eee;
  }
}

.sidebar .active > a {
  background: #eee;
  border-left: solid 4px #ccc;
}

.sidebar .slide-menu .has-sub-menu:not(.parent) ul {
  display: none;
}

.sidebar .slide-menu .has-sub-menu > a span.mark {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-block;
  height: 32px;
  width: 32px;
  line-height: 2;
  text-align: center;
  color: #979797;
  background: #f2f2f2;
  border-left: 1px solid #e7e7e7;
}

.sidebar-footer {
  padding: 1.28rem;
}

.edit-meta {
  font-size: 80%;
  text-align: right;
}

.edit-page {
  font-weight: bold;
}

.powered {
  font-size: 80%;
  text-align: right;
  color: #999;
}