/*! 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 {
  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 {
  font-family: monospace, monospace; /* 1 */
  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 */
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * 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 {
  font-family: monospace, monospace; /* 1 */
  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 {
  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"] {
  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;
}

:root{--usable-height: 100vh;--usable-width: 100vw}.l-flex-info-row{display:flex;justify-content:space-between;align-items:center}.l-flex-info-row:not(:first-child){margin-top:.875em}.l-flex-info-row:not(:last-child){margin-bottom:.875em}.l-flex-info-row>*:first-child{flex:1 0 auto;padding-right:.5em;font-weight:bold}.l-flex-info-row>*:last-child{text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.nav-scrollbar::-webkit-scrollbar{width:8px;height:8px}.nav-scrollbar::-webkit-scrollbar-track{box-shadow:inset 0 0 6px rgba(0,0,0,.2);border-radius:8px}.nav-scrollbar::-webkit-scrollbar-thumb{border-radius:8px;background:#bbb;box-shadow:inset 0 0 6px rgba(0,0,0,.25)}.columba-content-wrap{box-sizing:border-box;width:100%;min-width:448px;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:1rem;padding-right:1rem}@media screen and (width <= 576px){.columba-content-wrap{min-width:unset !important;max-width:unset !important;padding-left:.5rem;padding-right:.5rem}}
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@font-face {
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@font-face {
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@font-face {
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@font-face {
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  font-weight: normal;
  font-style: normal;
}
.katex {
  font: normal 1.21em KaTeX_Main, Times New Roman, serif;
  line-height: 1.2;
  text-indent: 0;
  text-rendering: auto;
}
.katex * {
  -ms-high-contrast-adjust: none !important;
}
.katex * {
  border-color: currentColor;
}
.katex .katex-version::after {
  content: "0.16.21";
}
.katex .katex-mathml {
  /* Accessibility hack to only show to screen readers
   Found at: http://a11yproject.com/posts/how-to-hide-content/ */
  position: absolute;
  clip: rect(1px, 1px, 1px, 1px);
  padding: 0;
  border: 0;
  height: 1px;
  width: 1px;
  overflow: hidden;
}
.katex .katex-html {
  /* \newline is an empty block at top level, between .base elements */
}
.katex .katex-html > .newline {
  display: block;
}
.katex .base {
  position: relative;
  display: inline-block;
  white-space: nowrap;
  width: -webkit-min-content;
  width: -moz-min-content;
  width: min-content;
}
.katex .strut {
  display: inline-block;
}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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.katex .underline .underline-line,
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}
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  /* stylelint-disable-next-line */
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}
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  /* stylelint-disable-next-line */
  font-size: 2.88em;
}
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.user-nav[data-v-c20920ca]{display:flex;align-items:center}.user-nav[data-v-c20920ca]>*{margin:0 .25em;vertical-align:middle}@media screen and (width <= 576px){.user-nav[data-v-c20920ca]>*{margin:0 .125em}}.user-nav .link[data-v-c20920ca]{padding:.25em;border-radius:3px;color:inherit}.user-nav .link[data-v-c20920ca]:hover{background-color:rgba(0,0,0,.05)}.user-nav .avatar[data-v-c20920ca]{margin:0 1em}@media screen and (width <= 576px){.user-nav .avatar[data-v-c20920ca]{margin:0 .5em}}.user-nav .avatar img[data-v-c20920ca]{width:35px;height:35px;border-radius:50%;vertical-align:middle;cursor:pointer}.user-nav .text[data-v-c20920ca]{margin:0 .2em;text-decoration:none;font-size:.8em;color:inherit}.setting-dropdown[data-v-c20920ca]{background:#fff;box-shadow:0 1px 3px rgba(26,26,26,.3);padding:.6em .8em;width:max-content;font-size:.875em;border-radius:3px}.setting-dropdown li[data-v-c20920ca]{margin:.25em 0;list-style:none}.nav-search[data-v-c20920ca]{display:inline-flex;align-items:center;position:relative}.nav-search .search-wrap[data-v-c20920ca]{display:inline-block;margin-right:.4em;width:0;vertical-align:middle;overflow:hidden;opacity:0;transition:all .25s ease}@media screen and (width <= 576px){.nav-search .search-wrap[data-v-c20920ca]{position:absolute;right:100%;top:0}}.nav-search .search-wrap.show[data-v-c20920ca]{width:10em;opacity:1}
.top-bar[data-v-8348072e]{position:fixed;top:0;left:0;right:0;bottom:0;box-sizing:border-box;max-height:3.5rem;height:3.5rem;z-index:10;display:flex;flex-flow:row nowrap;align-items:center;padding:.75rem;line-height:1;color:#333;background:#fff;box-shadow:0 1px 3px rgba(26,26,26,.1)}.top-bar .left[data-v-8348072e]{display:flex;align-items:center;flex:1;gap:1em}.top-bar .header-logo[data-v-8348072e]{padding:0 .75em;height:2rem;vertical-align:middle;user-select:none}.top-bar .header-logo.mini[data-v-8348072e]{padding:0;width:calc(64px - 1.5rem)}.top-bar .side-toggle[data-v-8348072e]{cursor:pointer;padding:.5rem;border-radius:.5rem}.top-bar .side-toggle[data-v-8348072e]:hover,.top-bar .side-toggle.active[data-v-8348072e]{background-color:rgba(0,0,0,.05)}
html,body{box-sizing:border-box;width:100%}#app{box-sizing:border-box;width:100%}
.lside[data-v-f6cb5ac6]{position:fixed;top:3.5rem;left:0;bottom:0;z-index:11;box-sizing:border-box;max-width:240px;width:240px;line-height:1.2;overflow:hidden auto;transition:left .3s ease,box-shadow .5s ease}.lside.drawer.show[data-v-f6cb5ac6]{border-radius:0 .75em .75em 0;box-shadow:0 0 1px 0 rgba(0,0,0,.5) inset,2px 0 5px 2px rgba(0,0,0,.15)}.lside.drawer.hide[data-v-f6cb5ac6]{left:-240px}.lside.bar[data-v-f6cb5ac6]{width:64px;box-shadow:1px 0 3px rgba(26,26,26,.1);z-index:9;transition:all .25s ease-out}.lside.bar[data-v-f6cb5ac6]:hover{width:180px}.rside[data-v-f6cb5ac6]{position:fixed;top:3.5rem;right:0;bottom:0;box-sizing:border-box;max-width:240px;width:240px;line-height:1.2;z-index:11;overflow:hidden auto;transition:right .3s ease,box-shadow .5s ease}.rside.show[data-v-f6cb5ac6]{border-radius:.75em 0 0 .75em;box-shadow:0 0 1px 0 rgba(0,0,0,.5) inset,2px 0 5px 2px rgba(0,0,0,.15)}.rside.hide[data-v-f6cb5ac6]{right:-240px}.breadcrumb[data-v-f6cb5ac6]>*{padding:.25em;margin:0 .1em;border-radius:3px}.breadcrumb a[data-v-f6cb5ac6]:hover{background-color:rgba(0,0,0,.05)}