.CtxtMenu_InfoClose {
  top: 0.2em;
  right: 0.2em;
}
.CtxtMenu_InfoContent {
  overflow: auto;
  text-align: left;
  font-size: 80%;
  padding: 0.4em 0.6em;
  border: 1px inset;
  margin: 1em 0px;
  max-height: 20em;
  max-width: 30em;
  background-color: #eeeeee;
  white-space: normal;
}
.CtxtMenu_Info.CtxtMenu_MousePost {
  outline: none;
}
.CtxtMenu_Info {
  position: fixed;
  left: 50%;
  width: auto;
  text-align: center;
  border: 3px outset;
  padding: 1em 2em;
  background-color: #dddddd;
  color: black;
  cursor: default;
  font-family: message-box;
  font-size: 120%;
  font-style: normal;
  text-indent: 0;
  text-transform: none;
  line-height: normal;
  letter-spacing: normal;
  word-spacing: normal;
  word-wrap: normal;
  white-space: nowrap;
  float: none;
  z-index: 201;
  border-radius: 15px; /* Opera 10.5 and IE9 */
  -webkit-border-radius: 15px; /* Safari and Chrome */
  -moz-border-radius: 15px; /* Firefox */
  -khtml-border-radius: 15px; /* Konqueror */
  box-shadow: 0px 10px 20px #808080; /* Opera 10.5 and IE9 */
  -webkit-box-shadow: 0px 10px 20px #808080; /* Safari 3 & Chrome */
  -moz-box-shadow: 0px 10px 20px #808080; /* Forefox 3.5 */
  -khtml-box-shadow: 0px 10px 20px #808080; /* Konqueror */
  filter: progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color="gray", Positive="true"); /* IE */
}

.CtxtMenu_MenuClose {
  position: absolute;
  cursor: pointer;
  display: inline-block;
  border: 2px solid #aaa;
  border-radius: 18px;
  -webkit-border-radius: 18px; /* Safari and Chrome */
  -moz-border-radius: 18px; /* Firefox */
  -khtml-border-radius: 18px; /* Konqueror */
  font-family: 'Courier New', Courier;
  font-size: 24px;
  color: #f0f0f0;
}
.CtxtMenu_MenuClose span {
  display: block;
  background-color: #aaa;
  border: 1.5px solid;
  border-radius: 18px;
  -webkit-border-radius: 18px; /* Safari and Chrome */
  -moz-border-radius: 18px; /* Firefox */
  -khtml-border-radius: 18px; /* Konqueror */
  line-height: 0;
  padding: 8px 0 6px; /* may need to be browser-specific */
}
.CtxtMenu_MenuClose:hover {
  color: white !important;
  border: 2px solid #ccc !important;
}
.CtxtMenu_MenuClose:hover span {
  background-color: #ccc !important;
}
.CtxtMenu_MenuClose:hover:focus {
  outline: none;
}
.CtxtMenu_Menu {
  position: absolute;
  background-color: white;
  color: black;
  width: auto;
  padding: 5px 0px;
  border: 1px solid #cccccc;
  margin: 0;
  cursor: default;
  font: menu;
  text-align: left;
  text-indent: 0;
  text-transform: none;
  line-height: normal;
  letter-spacing: normal;
  word-spacing: normal;
  word-wrap: normal;
  white-space: nowrap;
  float: none;
  z-index: 201;
  border-radius: 5px; /* Opera 10.5 and IE9 */
  -webkit-border-radius: 5px; /* Safari and Chrome */
  -moz-border-radius: 5px; /* Firefox */
  -khtml-border-radius: 5px; /* Konqueror */
  box-shadow: 0px 10px 20px #808080; /* Opera 10.5 and IE9 */
  -webkit-box-shadow: 0px 10px 20px #808080; /* Safari 3 & Chrome */
  -moz-box-shadow: 0px 10px 20px #808080; /* Forefox 3.5 */
  -khtml-box-shadow: 0px 10px 20px #808080; /* Konqueror */
}
.CtxtMenu_MenuItem {
  padding: 1px 2em;
  background: transparent;
}
.CtxtMenu_MenuArrow {
  position: absolute;
  right: 0.5em;
  padding-top: 0.25em;
  color: #666666;
  font-family: null;
  font-size: 0.75em;
}
.CtxtMenu_MenuActive .CtxtMenu_MenuArrow {
  color: white;
}
.CtxtMenu_MenuArrow.CtxtMenu_RTL {
  left: 0.5em;
  right: auto;
}
.CtxtMenu_MenuCheck {
  position: absolute;
  left: 0.7em;
  font-family: null;
}
.CtxtMenu_MenuCheck.CtxtMenu_RTL {
  right: 0.7em;
  left: auto;
}
.CtxtMenu_MenuRadioCheck {
  position: absolute;
  left: 0.7em;
}
.CtxtMenu_MenuRadioCheck.CtxtMenu_RTL {
  right: 0.7em;
  left: auto;
}
.CtxtMenu_MenuInputBox {
  padding-left: 1em;
  right: 0.5em;
  color: #666666;
  font-family: null;
}
.CtxtMenu_MenuInputBox.CtxtMenu_RTL {
  left: 0.1em;
}
.CtxtMenu_MenuComboBox {
  left: 0.1em;
  padding-bottom: 0.5em;
}
.CtxtMenu_MenuSlider {
  left: 0.1em;
}
.CtxtMenu_SliderValue {
  position: absolute;
  right: 0.1em;
  padding-top: 0.25em;
  color: #333333;
  font-size: 0.75em;
}
.CtxtMenu_SliderBar {
  outline: none;
  background: #d3d3d3;
}
.CtxtMenu_MenuLabel {
  padding: 1px 2em 3px 1.33em;
  font-style: italic;
}
.CtxtMenu_MenuRule {
  border-top: 1px solid #dddddd;
  margin: 4px 3px;
}
.CtxtMenu_MenuDisabled {
  color: GrayText;
}
.CtxtMenu_MenuActive {
  background-color: #606872;
  color: white;
}
.CtxtMenu_MenuDisabled:focus {
  background-color: #e8e8e8;
}
.CtxtMenu_MenuLabel:focus {
  background-color: #e8e8e8;
}
.CtxtMenu_ContextMenu:focus {
  outline: none;
}
.CtxtMenu_ContextMenu .CtxtMenu_MenuItem:focus {
  outline: none;
}
.CtxtMenu_SelectionMenu {
  position: relative;
  float: left;
  border-bottom: none;
  -webkit-box-shadow: none;
  -webkit-border-radius: 0px;
}
.CtxtMenu_SelectionItem {
  padding-right: 1em;
}
.CtxtMenu_Selection {
  right: 40%;
  width: 50%;
}
.CtxtMenu_SelectionBox {
  padding: 0em;
  max-height: 20em;
  max-width: none;
  background-color: #ffffff;
}
.CtxtMenu_SelectionDivider {
  clear: both;
  border-top: 2px solid #000000;
}
.CtxtMenu_Menu .CtxtMenu_MenuClose {
  top: -10px;
  left: -10px;
}

mjx-container[jax='CHTML'] {
  line-height: 0;
}

mjx-container [space='1'] {
  margin-left: 0.111em;
}

mjx-container [space='2'] {
  margin-left: 0.167em;
}

mjx-container [space='3'] {
  margin-left: 0.222em;
}

mjx-container [space='4'] {
  margin-left: 0.278em;
}

mjx-container [space='5'] {
  margin-left: 0.333em;
}

mjx-container [rspace='1'] {
  margin-right: 0.111em;
}

mjx-container [rspace='2'] {
  margin-right: 0.167em;
}

mjx-container [rspace='3'] {
  margin-right: 0.222em;
}

mjx-container [rspace='4'] {
  margin-right: 0.278em;
}

mjx-container [rspace='5'] {
  margin-right: 0.333em;
}

mjx-container [size='s'] {
  font-size: 70.7%;
}

mjx-container [size='ss'] {
  font-size: 50%;
}

mjx-container [size='Tn'] {
  font-size: 60%;
}

mjx-container [size='sm'] {
  font-size: 85%;
}

mjx-container [size='lg'] {
  font-size: 120%;
}

mjx-container [size='Lg'] {
  font-size: 144%;
}

mjx-container [size='LG'] {
  font-size: 173%;
}

mjx-container [size='hg'] {
  font-size: 207%;
}

mjx-container [size='HG'] {
  font-size: 249%;
}

mjx-container [width='full'] {
  width: 100%;
}

mjx-box {
  display: inline-block;
}

mjx-block {
  display: block;
}

mjx-itable {
  display: inline-table;
}

mjx-row {
  display: table-row;
}

mjx-row > * {
  display: table-cell;
}

mjx-mtext {
  display: inline-block;
  text-align: left;
}

mjx-mstyle {
  display: inline-block;
}

mjx-merror {
  display: inline-block;
  color: red;
  background-color: yellow;
}

mjx-mphantom {
  visibility: hidden;
}

_::-webkit-full-page-media,
_:future,
:root mjx-container {
  will-change: opacity;
}

mjx-assistive-mml {
  position: absolute !important;
  top: 0px;
  left: 0px;
  clip: rect(1px, 1px, 1px, 1px);
  padding: 1px 0px 0px 0px !important;
  border: 0px !important;
  display: block !important;
  width: auto !important;
  overflow: hidden !important;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

mjx-assistive-mml[display='block'] {
  width: 100% !important;
}

mjx-math {
  display: inline-block;
  text-align: left;
  line-height: 0;
  text-indent: 0;
  font-style: normal;
  font-weight: normal;
  font-size: 100%;
  font-size-adjust: none;
  letter-spacing: normal;
  border-collapse: collapse;
  word-wrap: normal;
  word-spacing: normal;
  white-space: nowrap;
  direction: ltr;
  padding: 1px 0;
}

mjx-container[jax='CHTML'][display='true'] {
  display: block;
  text-align: center;
  margin: 1em 0;
}

mjx-container[jax='CHTML'][display='true'][width='full'] {
  display: flex;
}

mjx-container[jax='CHTML'][display='true'] mjx-math {
  padding: 0;
}

mjx-container[jax='CHTML'][justify='left'] {
  text-align: left;
}

mjx-container[jax='CHTML'][justify='right'] {
  text-align: right;
}

mjx-mfrac {
  display: inline-block;
  text-align: left;
}

mjx-frac {
  display: inline-block;
  vertical-align: 0.17em;
  padding: 0 0.22em;
}

mjx-frac[type='d'] {
  vertical-align: 0.04em;
}

mjx-frac[delims] {
  padding: 0 0.1em;
}

mjx-frac[atop] {
  padding: 0 0.12em;
}

mjx-frac[atop][delims] {
  padding: 0;
}

mjx-dtable {
  display: inline-table;
  width: 100%;
}

mjx-dtable > * {
  font-size: 2000%;
}

mjx-dbox {
  display: block;
  font-size: 5%;
}

mjx-num {
  display: block;
  text-align: center;
}

mjx-den {
  display: block;
  text-align: center;
}

mjx-mfrac[bevelled] > mjx-num {
  display: inline-block;
}

mjx-mfrac[bevelled] > mjx-den {
  display: inline-block;
}

mjx-den[align='right'],
mjx-num[align='right'] {
  text-align: right;
}

mjx-den[align='left'],
mjx-num[align='left'] {
  text-align: left;
}

mjx-nstrut {
  display: inline-block;
  height: 0.054em;
  width: 0;
  vertical-align: -0.054em;
}

mjx-nstrut[type='d'] {
  height: 0.217em;
  vertical-align: -0.217em;
}

mjx-dstrut {
  display: inline-block;
  height: 0.505em;
  width: 0;
}

mjx-dstrut[type='d'] {
  height: 0.726em;
}

mjx-line {
  display: block;
  box-sizing: border-box;
  min-height: 1px;
  height: 0.06em;
  border-top: 0.06em solid;
  margin: 0.06em -0.1em;
  overflow: hidden;
}

mjx-line[type='d'] {
  margin: 0.18em -0.1em;
}

mjx-mi {
  display: inline-block;
  text-align: left;
}

mjx-c {
  display: inline-block;
}

mjx-utext {
  display: inline-block;
  padding: 0.75em 0 0.2em 0;
}

mjx-mo {
  display: inline-block;
  text-align: left;
}

mjx-stretchy-h {
  display: inline-table;
  width: 100%;
}

mjx-stretchy-h > * {
  display: table-cell;
  width: 0;
}

mjx-stretchy-h > * > mjx-c {
  display: inline-block;
  transform: scalex(1.0000001);
}

mjx-stretchy-h > * > mjx-c::before {
  display: inline-block;
  width: initial;
}

mjx-stretchy-h > mjx-ext {
  /* IE */
  overflow: hidden;
  /* others */
  overflow: clip visible;
  width: 100%;
}

mjx-stretchy-h > mjx-ext > mjx-c::before {
  transform: scalex(500);
}

mjx-stretchy-h > mjx-ext > mjx-c {
  width: 0;
}

mjx-stretchy-h > mjx-beg > mjx-c {
  margin-right: -0.1em;
}

mjx-stretchy-h > mjx-end > mjx-c {
  margin-left: -0.1em;
}

mjx-stretchy-v {
  display: inline-block;
}

mjx-stretchy-v > * {
  display: block;
}

mjx-stretchy-v > mjx-beg {
  height: 0;
}

mjx-stretchy-v > mjx-end > mjx-c {
  display: block;
}

mjx-stretchy-v > * > mjx-c {
  transform: scaley(1.0000001);
  transform-origin: left center;
  overflow: hidden;
}

mjx-stretchy-v > mjx-ext {
  display: block;
  height: 100%;
  box-sizing: border-box;
  border: 0px solid transparent;
  /* IE */
  overflow: hidden;
  /* others */
  overflow: visible clip;
}

mjx-stretchy-v > mjx-ext > mjx-c::before {
  width: initial;
  box-sizing: border-box;
}

mjx-stretchy-v > mjx-ext > mjx-c {
  transform: scaleY(500) translateY(0.075em);
  overflow: visible;
}

mjx-mark {
  display: inline-block;
  height: 0px;
}

mjx-mrow {
  display: inline-block;
  text-align: left;
}

mjx-msup {
  display: inline-block;
  text-align: left;
}

mjx-TeXAtom {
  display: inline-block;
  text-align: left;
}

mjx-mn {
  display: inline-block;
  text-align: left;
}

mjx-msqrt {
  display: inline-block;
  text-align: left;
}

mjx-root {
  display: inline-block;
  white-space: nowrap;
}

mjx-surd {
  display: inline-block;
  vertical-align: top;
}

mjx-sqrt {
  display: inline-block;
  padding-top: 0.07em;
}

mjx-sqrt > mjx-box {
  border-top: 0.07em solid;
}

mjx-sqrt.mjx-tall > mjx-box {
  padding-left: 0.3em;
  margin-left: -0.3em;
}

mjx-mroot {
  display: inline-block;
  text-align: left;
}

mjx-mtable {
  display: inline-block;
  text-align: center;
  vertical-align: 0.25em;
  position: relative;
  box-sizing: border-box;
  border-spacing: 0;
  border-collapse: collapse;
}

mjx-mstyle[size='s'] mjx-mtable {
  vertical-align: 0.354em;
}

mjx-labels {
  position: absolute;
  left: 0;
  top: 0;
}

mjx-table {
  display: inline-block;
  vertical-align: -0.5ex;
  box-sizing: border-box;
}

mjx-table > mjx-itable {
  vertical-align: middle;
  text-align: left;
  box-sizing: border-box;
}

mjx-labels > mjx-itable {
  position: absolute;
  top: 0;
}

mjx-mtable[justify='left'] {
  text-align: left;
}

mjx-mtable[justify='right'] {
  text-align: right;
}

mjx-mtable[justify='left'][side='left'] {
  padding-right: 0 !important;
}

mjx-mtable[justify='left'][side='right'] {
  padding-left: 0 !important;
}

mjx-mtable[justify='right'][side='left'] {
  padding-right: 0 !important;
}

mjx-mtable[justify='right'][side='right'] {
  padding-left: 0 !important;
}

mjx-mtable[align] {
  vertical-align: baseline;
}

mjx-mtable[align='top'] > mjx-table {
  vertical-align: top;
}

mjx-mtable[align='bottom'] > mjx-table {
  vertical-align: bottom;
}

mjx-mtable[side='right'] mjx-labels {
  min-width: 100%;
}

mjx-mtr {
  display: table-row;
  text-align: left;
}

mjx-mtr[rowalign='top'] > mjx-mtd {
  vertical-align: top;
}

mjx-mtr[rowalign='center'] > mjx-mtd {
  vertical-align: middle;
}

mjx-mtr[rowalign='bottom'] > mjx-mtd {
  vertical-align: bottom;
}

mjx-mtr[rowalign='baseline'] > mjx-mtd {
  vertical-align: baseline;
}

mjx-mtr[rowalign='axis'] > mjx-mtd {
  vertical-align: 0.25em;
}

mjx-mtd {
  display: table-cell;
  text-align: center;
  padding: 0.215em 0.4em;
}

mjx-mtd:first-child {
  padding-left: 0;
}

mjx-mtd:last-child {
  padding-right: 0;
}

mjx-mtable > * > mjx-itable > *:first-child > mjx-mtd {
  padding-top: 0;
}

mjx-mtable > * > mjx-itable > *:last-child > mjx-mtd {
  padding-bottom: 0;
}

mjx-tstrut {
  display: inline-block;
  height: 1em;
  vertical-align: -0.25em;
}

mjx-labels[align='left'] > mjx-mtr > mjx-mtd {
  text-align: left;
}

mjx-labels[align='right'] > mjx-mtr > mjx-mtd {
  text-align: right;
}

mjx-mtd[extra] {
  padding: 0;
}

mjx-mtd[rowalign='top'] {
  vertical-align: top;
}

mjx-mtd[rowalign='center'] {
  vertical-align: middle;
}

mjx-mtd[rowalign='bottom'] {
  vertical-align: bottom;
}

mjx-mtd[rowalign='baseline'] {
  vertical-align: baseline;
}

mjx-mtd[rowalign='axis'] {
  vertical-align: 0.25em;
}

mjx-msub {
  display: inline-block;
  text-align: left;
}

mjx-mover {
  display: inline-block;
  text-align: left;
}

mjx-mover:not([limits='false']) {
  padding-top: 0.1em;
}

mjx-mover:not([limits='false']) > * {
  display: block;
  text-align: left;
}

mjx-munderover {
  display: inline-block;
  text-align: left;
}

mjx-munderover:not([limits='false']) {
  padding-top: 0.1em;
}

mjx-munderover:not([limits='false']) > * {
  display: block;
}

mjx-msubsup {
  display: inline-block;
  text-align: left;
}

mjx-script {
  display: inline-block;
  padding-right: 0.05em;
  padding-left: 0.033em;
}

mjx-script > mjx-spacer {
  display: block;
}

mjx-munder {
  display: inline-block;
  text-align: left;
}

mjx-over {
  text-align: left;
}

mjx-munder:not([limits='false']) {
  display: inline-table;
}

mjx-munder > mjx-row {
  text-align: left;
}

mjx-under {
  padding-bottom: 0.1em;
}

mjx-mpadded {
  display: inline-block;
  text-align: left;
}

mjx-rbox {
  display: inline-block;
  position: relative;
}

mjx-mspace {
  display: inline-block;
  text-align: left;
}

mjx-c::before {
  display: block;
  width: 0;
}

.MJX-TEX {
  font-family: MJXZERO, MJXTEX;
}

.TEX-B {
  font-family: MJXZERO, MJXTEX-B;
}

.TEX-I {
  font-family: MJXZERO, MJXTEX-I;
}

.TEX-MI {
  font-family: MJXZERO, MJXTEX-MI;
}

.TEX-BI {
  font-family: MJXZERO, MJXTEX-BI;
}

.TEX-S1 {
  font-family: MJXZERO, MJXTEX-S1;
}

.TEX-S2 {
  font-family: MJXZERO, MJXTEX-S2;
}

.TEX-S3 {
  font-family: MJXZERO, MJXTEX-S3;
}

.TEX-S4 {
  font-family: MJXZERO, MJXTEX-S4;
}

.TEX-A {
  font-family: MJXZERO, MJXTEX-A;
}

.TEX-C {
  font-family: MJXZERO, MJXTEX-C;
}

.TEX-CB {
  font-family: MJXZERO, MJXTEX-CB;
}

.TEX-FR {
  font-family: MJXZERO, MJXTEX-FR;
}

.TEX-FRB {
  font-family: MJXZERO, MJXTEX-FRB;
}

.TEX-SS {
  font-family: MJXZERO, MJXTEX-SS;
}

.TEX-SSB {
  font-family: MJXZERO, MJXTEX-SSB;
}

.TEX-SSI {
  font-family: MJXZERO, MJXTEX-SSI;
}

.TEX-SC {
  font-family: MJXZERO, MJXTEX-SC;
}

.TEX-T {
  font-family: MJXZERO, MJXTEX-T;
}

.TEX-V {
  font-family: MJXZERO, MJXTEX-V;
}

.TEX-VB {
  font-family: MJXZERO, MJXTEX-VB;
}

mjx-stretchy-v mjx-c,
mjx-stretchy-h mjx-c {
  font-family: MJXZERO, MJXTEX-S1, MJXTEX-S4, MJXTEX, MJXTEX-A !important;
}

@font-face /* 0 */ {
  font-family: MJXZERO;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Zero.woff')
    format('woff');
}

@font-face /* 1 */ {
  font-family: MJXTEX;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Main-Regular.woff')
    format('woff');
}

@font-face /* 2 */ {
  font-family: MJXTEX-B;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Main-Bold.woff')
    format('woff');
}

@font-face /* 3 */ {
  font-family: MJXTEX-I;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Math-Italic.woff')
    format('woff');
}

@font-face /* 4 */ {
  font-family: MJXTEX-MI;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Main-Italic.woff')
    format('woff');
}

@font-face /* 5 */ {
  font-family: MJXTEX-BI;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Math-BoldItalic.woff')
    format('woff');
}

@font-face /* 6 */ {
  font-family: MJXTEX-S1;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Size1-Regular.woff')
    format('woff');
}

@font-face /* 7 */ {
  font-family: MJXTEX-S2;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Size2-Regular.woff')
    format('woff');
}

@font-face /* 8 */ {
  font-family: MJXTEX-S3;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Size3-Regular.woff')
    format('woff');
}

@font-face /* 9 */ {
  font-family: MJXTEX-S4;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Size4-Regular.woff')
    format('woff');
}

@font-face /* 10 */ {
  font-family: MJXTEX-A;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_AMS-Regular.woff')
    format('woff');
}

@font-face /* 11 */ {
  font-family: MJXTEX-C;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Calligraphic-Regular.woff')
    format('woff');
}

@font-face /* 12 */ {
  font-family: MJXTEX-CB;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Calligraphic-Bold.woff')
    format('woff');
}

@font-face /* 13 */ {
  font-family: MJXTEX-FR;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Fraktur-Regular.woff')
    format('woff');
}

@font-face /* 14 */ {
  font-family: MJXTEX-FRB;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Fraktur-Bold.woff')
    format('woff');
}

@font-face /* 15 */ {
  font-family: MJXTEX-SS;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_SansSerif-Regular.woff')
    format('woff');
}

@font-face /* 16 */ {
  font-family: MJXTEX-SSB;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_SansSerif-Bold.woff')
    format('woff');
}

@font-face /* 17 */ {
  font-family: MJXTEX-SSI;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_SansSerif-Italic.woff')
    format('woff');
}

@font-face /* 18 */ {
  font-family: MJXTEX-SC;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Script-Regular.woff')
    format('woff');
}

@font-face /* 19 */ {
  font-family: MJXTEX-T;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Typewriter-Regular.woff')
    format('woff');
}

@font-face /* 20 */ {
  font-family: MJXTEX-V;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Vector-Regular.woff')
    format('woff');
}

@font-face /* 21 */ {
  font-family: MJXTEX-VB;
  src: url('https://cdn-cnc.17zuoye.cn/s17/lib/MathJax/3.2.2/output/chtml/fonts/woff-v2/MathJax_Vector-Bold.woff')
    format('woff');
}

mjx-stretchy-v.mjx-c7B mjx-beg mjx-c::before {
  content: '\23A7';
  padding: 0.899em 0.889em 0.01em 0;
}

mjx-stretchy-v.mjx-c7B mjx-ext mjx-c::before {
  content: '\23AA';
  width: 0.889em;
}

mjx-stretchy-v.mjx-c7B mjx-end mjx-c::before {
  content: '\23A9';
  padding: 0.01em 0.889em 0.899em 0;
}

mjx-stretchy-v.mjx-c7B mjx-mid mjx-c::before {
  content: '\23A8';
  padding: 1.16em 0.889em 0.66em 0;
}

mjx-stretchy-v.mjx-c7B > mjx-mid {
  margin-top: -0.91em;
  margin-bottom: -0.91em;
}

mjx-stretchy-v.mjx-c7B > mjx-end {
  margin-top: -0.909em;
}

mjx-stretchy-v.mjx-c7B > mjx-ext {
  height: 50%;
  border-top-width: 0.879em;
  border-bottom-width: 0.879em;
}

mjx-stretchy-v.mjx-c7C mjx-ext mjx-c::before {
  content: '\2223';
  width: 0.333em;
}

.mjx-stretched mjx-c.mjx-c2013::before {
  content: '\2013';
}

mjx-stretchy-h.mjx-c2013 mjx-ext mjx-c::before {
  content: '\2013';
  padding: 0.285em 0 0 0;
}

mjx-stretchy-v.mjx-c28 mjx-beg mjx-c::before {
  content: '\239B';
  padding: 1.154em 0.875em 0.655em 0;
}

mjx-stretchy-v.mjx-c28 mjx-ext mjx-c::before {
  content: '\239C';
  width: 0.875em;
}

mjx-stretchy-v.mjx-c28 mjx-end mjx-c::before {
  content: '\239D';
  padding: 1.165em 0.875em 0.644em 0;
}

mjx-stretchy-v.mjx-c28 > mjx-end {
  margin-top: -1.809em;
}

mjx-stretchy-v.mjx-c28 > mjx-ext {
  border-top-width: 1.779em;
  border-bottom-width: 1.779em;
}

mjx-stretchy-v.mjx-c29 mjx-beg mjx-c::before {
  content: '\239E';
  padding: 1.154em 0.875em 0.655em 0;
}

mjx-stretchy-v.mjx-c29 mjx-ext mjx-c::before {
  content: '\239F';
  width: 0.875em;
}

mjx-stretchy-v.mjx-c29 mjx-end mjx-c::before {
  content: '\23A0';
  padding: 1.165em 0.875em 0.644em 0;
}

mjx-stretchy-v.mjx-c29 > mjx-end {
  margin-top: -1.809em;
}

mjx-stretchy-v.mjx-c29 > mjx-ext {
  border-top-width: 1.779em;
  border-bottom-width: 1.779em;
}

mjx-stretchy-v.mjx-c5B mjx-beg mjx-c::before {
  content: '\23A1';
  padding: 1.154em 0.667em 0.645em 0;
}

mjx-stretchy-v.mjx-c5B mjx-ext mjx-c::before {
  content: '\23A2';
  width: 0.667em;
}

mjx-stretchy-v.mjx-c5B mjx-end mjx-c::before {
  content: '\23A3';
  padding: 1.155em 0.667em 0.644em 0;
}

mjx-stretchy-v.mjx-c5B > mjx-end {
  margin-top: -1.799em;
}

mjx-stretchy-v.mjx-c5B > mjx-ext {
  border-top-width: 1.769em;
  border-bottom-width: 1.769em;
}

mjx-stretchy-v.mjx-c5D mjx-beg mjx-c::before {
  content: '\23A4';
  padding: 1.154em 0.667em 0.645em 0;
}

mjx-stretchy-v.mjx-c5D mjx-ext mjx-c::before {
  content: '\23A5';
  width: 0.667em;
}

mjx-stretchy-v.mjx-c5D mjx-end mjx-c::before {
  content: '\23A6';
  padding: 1.155em 0.667em 0.644em 0;
}

mjx-stretchy-v.mjx-c5D > mjx-end {
  margin-top: -1.799em;
}

mjx-stretchy-v.mjx-c5D > mjx-ext {
  border-top-width: 1.769em;
  border-bottom-width: 1.769em;
}

mjx-stretchy-h.mjx-c2192 mjx-ext mjx-c::before {
  content: '\2212';
  padding: 0.583em 0 0.082em 0;
}

mjx-stretchy-h.mjx-c2192 mjx-end mjx-c::before {
  content: '\2192';
  padding: 0.583em 0 0.082em 0;
}

mjx-c.mjx-c1D44E.TEX-I::before {
  padding: 0.441em 0.529em 0.01em 0;
  content: 'a';
}

mjx-c.mjx-c1D44F.TEX-I::before {
  padding: 0.694em 0.429em 0.011em 0;
  content: 'b';
}

mjx-c.mjx-cB1::before {
  padding: 0.666em 0.778em 0 0;
  content: '\B1';
}

mjx-c.mjx-c1D450.TEX-I::before {
  padding: 0.442em 0.433em 0.011em 0;
  content: 'c';
}

mjx-c.mjx-c1D451.TEX-I::before {
  padding: 0.694em 0.52em 0.01em 0;
  content: 'd';
}

mjx-c.mjx-c3D::before {
  padding: 0.583em 0.778em 0.082em 0;
  content: '=';
}

mjx-c.mjx-c28.TEX-S3::before {
  padding: 1.45em 0.736em 0.949em 0;
  content: '(';
}

mjx-c.mjx-c29.TEX-S3::before {
  padding: 1.45em 0.736em 0.949em 0;
  content: ')';
}

mjx-c.mjx-c32::before {
  padding: 0.666em 0.5em 0 0;
  content: '2';
}

mjx-c.mjx-c31::before {
  padding: 0.666em 0.5em 0 0;
  content: '1';
}

mjx-c.mjx-c221A::before {
  padding: 0.8em 0.853em 0.2em 0;
  content: '\221A';
}

mjx-c.mjx-c1D45B.TEX-I::before {
  padding: 0.442em 0.6em 0.011em 0;
  content: 'n';
}

mjx-c.mjx-c28.TEX-S1::before {
  padding: 0.85em 0.458em 0.349em 0;
  content: '(';
}

mjx-c.mjx-c29.TEX-S1::before {
  padding: 0.85em 0.458em 0.349em 0;
  content: ')';
}

mjx-c.mjx-c7C::before {
  padding: 0.75em 0.278em 0.249em 0;
  content: '|';
}

mjx-c.mjx-c7B.TEX-S3::before {
  padding: 1.45em 0.75em 0.949em 0;
  content: '{';
}

mjx-c.mjx-c28::before {
  padding: 0.75em 0.389em 0.25em 0;
  content: '(';
}

mjx-c.mjx-c2A7E.TEX-A::before {
  padding: 0.636em 0.778em 0.138em 0;
  content: '\2A7E';
}

mjx-c.mjx-c30::before {
  padding: 0.666em 0.5em 0.022em 0;
  content: '0';
}

mjx-c.mjx-c29::before {
  padding: 0.75em 0.389em 0.25em 0;
  content: ')';
}

mjx-c.mjx-c2212::before {
  padding: 0.583em 0.778em 0.082em 0;
  content: '\2212';
}

mjx-c.mjx-c3C::before {
  padding: 0.54em 0.778em 0.04em 0;
  content: '<';
}

mjx-c.mjx-c1D466.TEX-I::before {
  padding: 0.442em 0.49em 0.205em 0;
  content: 'y';
}

mjx-c.mjx-c1D458.TEX-I::before {
  padding: 0.694em 0.521em 0.011em 0;
  content: 'k';
}

mjx-c.mjx-c1D465.TEX-I::before {
  padding: 0.442em 0.572em 0.011em 0;
  content: 'x';
}

mjx-c.mjx-c2B::before {
  padding: 0.583em 0.778em 0.082em 0;
  content: '+';
}

mjx-c.mjx-c394::before {
  padding: 0.716em 0.833em 0 0;
  content: '\394';
}

mjx-c.mjx-c34::before {
  padding: 0.677em 0.5em 0 0;
  content: '4';
}

mjx-c.mjx-c2C::before {
  padding: 0.121em 0.278em 0.194em 0;
  content: ',';
}

mjx-c.mjx-c2A7D.TEX-A::before {
  padding: 0.636em 0.778em 0.138em 0;
  content: '\2A7D';
}

mjx-c.mjx-c33::before {
  padding: 0.665em 0.5em 0.022em 0;
  content: '3';
}

mjx-c.mjx-c2E::before {
  padding: 0.12em 0.278em 0 0;
  content: '.';
}

mjx-c.mjx-c25B3::before {
  padding: 0.716em 0.889em 0 0;
  content: '\25B3';
}

mjx-c.mjx-c1D434.TEX-I::before {
  padding: 0.716em 0.75em 0 0;
  content: 'A';
}

mjx-c.mjx-c1D435.TEX-I::before {
  padding: 0.683em 0.759em 0 0;
  content: 'B';
}

mjx-c.mjx-c1D436.TEX-I::before {
  padding: 0.705em 0.76em 0.022em 0;
  content: 'C';
}

mjx-c.mjx-c1D437.TEX-I::before {
  padding: 0.683em 0.828em 0 0;
  content: 'D';
}

mjx-c.mjx-c223D.TEX-A::before {
  padding: 0.367em 0.778em 0 0;
  content: '\223D';
}

mjx-c.mjx-c1D438.TEX-I::before {
  padding: 0.68em 0.764em 0 0;
  content: 'E';
}

mjx-c.mjx-c2220::before {
  padding: 0.694em 0.722em 0 0;
  content: '\2220';
}

mjx-c.mjx-c35::before {
  padding: 0.666em 0.5em 0.022em 0;
  content: '5';
}

mjx-c.mjx-c2218::before {
  padding: 0.444em 0.5em 0 0;
  content: '\2218';
}

mjx-c.mjx-c1D439.TEX-I::before {
  padding: 0.68em 0.749em 0 0;
  content: 'F';
}

mjx-c.mjx-c2225::before {
  padding: 0.75em 0.5em 0.25em 0;
  content: '\2225';
}

mjx-c.mjx-c21D2::before {
  padding: 0.525em 1em 0.024em 0;
  content: '\21D2';
}

mjx-c.mjx-c1D459.TEX-I::before {
  padding: 0.694em 0.298em 0.011em 0;
  content: 'l';
}

mjx-c.mjx-c22A5::before {
  padding: 0.668em 0.778em 0 0;
  content: '\22A5';
}

mjx-c.mjx-c1D6FD.TEX-I::before {
  padding: 0.705em 0.566em 0.194em 0;
  content: '\3B2';
}

mjx-c.mjx-c2282::before {
  padding: 0.54em 0.778em 0.04em 0;
  content: '\2282';
}

mjx-c.mjx-c1D6FC.TEX-I::before {
  padding: 0.442em 0.64em 0.011em 0;
  content: '\3B1';
}

mjx-c.mjx-c7D.TEX-S3::before {
  padding: 1.45em 0.75em 0.949em 0;
  content: '}';
}

mjx-c.mjx-c1D443.TEX-I::before {
  padding: 0.683em 0.751em 0 0;
  content: 'P';
}

mjx-c.mjx-c2208::before {
  padding: 0.54em 0.667em 0.04em 0;
  content: '\2208';
}

mjx-c.mjx-c2229::before {
  padding: 0.598em 0.667em 0.022em 0;
  content: '\2229';
}

mjx-c.mjx-c3E::before {
  padding: 0.54em 0.778em 0.04em 0;
  content: '>';
}

mjx-c.mjx-c1D411.TEX-B::before {
  padding: 0.686em 0.862em 0.011em 0;
  content: 'R';
}

mjx-c.mjx-c1D467.TEX-I::before {
  padding: 0.442em 0.465em 0.011em 0;
  content: 'z';
}

mjx-c.mjx-c37::before {
  padding: 0.676em 0.5em 0.022em 0;
  content: '7';
}

mjx-c.mjx-c36::before {
  padding: 0.666em 0.5em 0.022em 0;
  content: '6';
}

mjx-c.mjx-cAC::before {
  padding: 0.356em 0.667em 0 0;
  content: '\AC';
}

mjx-c.mjx-c1D45D.TEX-I::before {
  padding: 0.442em 0.503em 0.194em 0;
  content: 'p';
}

mjx-c.mjx-c3A::before {
  padding: 0.43em 0.278em 0 0;
  content: ':';
}

mjx-c.mjx-c2200::before {
  padding: 0.694em 0.556em 0.022em 0;
  content: '\2200';
}

mjx-c.mjx-c2203::before {
  padding: 0.694em 0.556em 0 0;
  content: '\2203';
}

mjx-c.mjx-c1D40D.TEX-B::before {
  padding: 0.686em 0.9em 0 0;
  content: 'N';
}

mjx-c.mjx-c2228::before {
  padding: 0.598em 0.667em 0.022em 0;
  content: '\2228';
}

mjx-c.mjx-c1D45E.TEX-I::before {
  padding: 0.442em 0.46em 0.194em 0;
  content: 'q';
}

mjx-c.mjx-c2227::before {
  padding: 0.598em 0.667em 0.022em 0;
  content: '\2227';
}

mjx-c.mjx-c2192::before {
  padding: 0.511em 1em 0.011em 0;
  content: '\2192';
}

mjx-c.mjx-c2190::before {
  padding: 0.511em 1em 0.011em 0;
  content: '\2190';
}

mjx-c.mjx-c2209::before {
  padding: 0.716em 0.667em 0.215em 0;
  content: '\2209';
}

mjx-c.mjx-c2201.TEX-A::before {
  padding: 0.846em 0.5em 0.021em 0;
  content: '\2201';
}

mjx-c.mjx-c1D448.TEX-I::before {
  padding: 0.683em 0.767em 0.022em 0;
  content: 'U';
}

mjx-c.mjx-c2205.TEX-A::before {
  padding: 0.587em 0.778em 0 0;
  content: '\2205';
}

mjx-c.mjx-c222A::before {
  padding: 0.598em 0.667em 0.022em 0;
  content: '\222A';
}

mjx-c.mjx-c5B::before {
  padding: 0.75em 0.278em 0.25em 0;
  content: '[';
}

mjx-c.mjx-c221E::before {
  padding: 0.442em 1em 0.011em 0;
  content: '\221E';
}

mjx-c.mjx-c6C::before {
  padding: 0.694em 0.278em 0 0;
  content: 'l';
}

mjx-c.mjx-c6F::before {
  padding: 0.448em 0.5em 0.01em 0;
  content: 'o';
}

mjx-c.mjx-c67::before {
  padding: 0.453em 0.5em 0.206em 0;
  content: 'g';
}

mjx-c.mjx-c2061::before {
  padding: 0 0 0 0;
  content: '';
}

mjx-c.mjx-c1D45A.TEX-I::before {
  padding: 0.442em 0.878em 0.011em 0;
  content: 'm';
}

mjx-c.mjx-c22C5::before {
  padding: 0.31em 0.278em 0 0;
  content: '\22C5';
}

mjx-c.mjx-c1D440.TEX-I::before {
  padding: 0.683em 1.051em 0 0;
  content: 'M';
}

mjx-c.mjx-c1D441.TEX-I::before {
  padding: 0.683em 0.888em 0 0;
  content: 'N';
}

mjx-c.mjx-c73::before {
  padding: 0.448em 0.394em 0.011em 0;
  content: 's';
}

mjx-c.mjx-c69::before {
  padding: 0.669em 0.278em 0 0;
  content: 'i';
}

mjx-c.mjx-c6E::before {
  padding: 0.442em 0.556em 0 0;
  content: 'n';
}

mjx-c.mjx-c63::before {
  padding: 0.448em 0.444em 0.011em 0;
  content: 'c';
}

mjx-c.mjx-c1D461.TEX-I::before {
  padding: 0.626em 0.361em 0.011em 0;
  content: 't';
}

mjx-c.mjx-c74::before {
  padding: 0.615em 0.389em 0.01em 0;
  content: 't';
}

mjx-c.mjx-c61::before {
  padding: 0.448em 0.5em 0.011em 0;
  content: 'a';
}

mjx-c.mjx-c1D711.TEX-I::before {
  padding: 0.442em 0.654em 0.218em 0;
  content: '\3C6';
}

mjx-c.mjx-c27E8::before {
  padding: 0.75em 0.389em 0.25em 0;
  content: '\27E8';
}

mjx-c.mjx-c27E9::before {
  padding: 0.75em 0.389em 0.25em 0;
  content: '\27E9';
}

mjx-c.mjx-c1D446.TEX-I::before {
  padding: 0.705em 0.645em 0.022em 0;
  content: 'S';
}

mjx-c.mjx-c1D44B.TEX-I::before {
  padding: 0.683em 0.852em 0 0;
  content: 'X';
}

mjx-c.mjx-c223C::before {
  padding: 0.367em 0.778em 0 0;
  content: '\223C';
}

mjx-c.mjx-c1D707.TEX-I::before {
  padding: 0.442em 0.603em 0.216em 0;
  content: '\3BC';
}

mjx-c.mjx-c1D70E.TEX-I::before {
  padding: 0.431em 0.571em 0.011em 0;
  content: '\3C3';
}

mjx-c.mjx-c5E::before {
  padding: 0.694em 0.5em 0 0;
  content: '^';
}

mjx-c.mjx-c2211.TEX-S1::before {
  padding: 0.75em 1.056em 0.25em 0;
  content: '\2211';
}

mjx-c.mjx-c1D456.TEX-I::before {
  padding: 0.661em 0.345em 0.011em 0;
  content: 'i';
}

mjx-c.mjx-c41::before {
  padding: 0.716em 0.75em 0 0;
  content: 'A';
}

mjx-c.mjx-c43::before {
  padding: 0.705em 0.722em 0.021em 0;
  content: 'C';
}

mjx-c.mjx-c21::before {
  padding: 0.716em 0.278em 0 0;
  content: '!';
}

mjx-c.mjx-c1D45F.TEX-I::before {
  padding: 0.442em 0.451em 0.011em 0;
  content: 'r';
}

mjx-c.mjx-c6D::before {
  padding: 0.442em 0.833em 0 0;
  content: 'm';
}

mjx-c.mjx-c1D453.TEX-I::before {
  padding: 0.705em 0.55em 0.205em 0;
  content: 'f';
}

mjx-c.mjx-c2032::before {
  padding: 0.56em 0.275em 0 0;
  content: '\2032';
}

mjx-c.mjx-c64::before {
  padding: 0.694em 0.556em 0.011em 0;
  content: 'd';
}

mjx-c.mjx-c222B.TEX-S1::before {
  padding: 0.805em 0.61em 0.306em 0;
  content: '\222B';
}

mjx-c.mjx-c2260::before {
  padding: 0.716em 0.778em 0.215em 0;
  content: '\2260';
}

mjx-c.mjx-c1D442.TEX-I::before {
  padding: 0.704em 0.763em 0.022em 0;
  content: 'O';
}

mjx-c.mjx-c22EF::before {
  padding: 0.31em 1.172em 0 0;
  content: '\22EF';
}

mjx-c.mjx-c22EE::before {
  padding: 1.3em 0.278em 0.03em 0;
  content: '\22EE';
}

mjx-c.mjx-c22F1::before {
  padding: 1.52em 1.282em 0 0;
  content: '\22F1';
}

mjx-c.mjx-c1D415.TEX-B::before {
  padding: 0.686em 0.869em 0.007em 0;
  content: 'V';
}

mjx-c.mjx-c1D452.TEX-I::before {
  padding: 0.442em 0.466em 0.011em 0;
  content: 'e';
}

mjx-c.mjx-c1D460.TEX-I::before {
  padding: 0.442em 0.469em 0.01em 0;
  content: 's';
}

mjx-c.mjx-c1D422.TEX-B::before {
  padding: 0.695em 0.319em 0 0;
  content: 'i';
}

mjx-c.mjx-c1D423.TEX-B::before {
  padding: 0.695em 0.351em 0.2em 0;
  content: 'j';
}

mjx-c.mjx-c1D424.TEX-B::before {
  padding: 0.694em 0.607em 0 0;
  content: 'k';
}

mjx-c.mjx-c1D715::before {
  padding: 0.715em 0.566em 0.022em 0;
  content: '\2202';
}

mjx-c.mjx-c1D462.TEX-I::before {
  padding: 0.442em 0.572em 0.011em 0;
  content: 'u';
}

mjx-c.mjx-c1D44C.TEX-I::before {
  padding: 0.683em 0.763em 0 0;
  content: 'Y';
}

mjx-c.mjx-c1D463.TEX-I::before {
  padding: 0.443em 0.485em 0.011em 0;
  content: 'v';
}

mjx-c.mjx-c1D43E.TEX-I::before {
  padding: 0.683em 0.889em 0 0;
  content: 'K';
}

mjx-c.mjx-c1D444.TEX-I::before {
  padding: 0.704em 0.791em 0.194em 0;
  content: 'Q';
}

mjx-c.mjx-c1D44A.TEX-I::before {
  padding: 0.683em 1.048em 0.022em 0;
  content: 'W';
}

mjx-c.mjx-c1D703.TEX-I::before {
  padding: 0.705em 0.469em 0.01em 0;
  content: '\3B8';
}

mjx-c.mjx-c1D70C.TEX-I::before {
  padding: 0.442em 0.517em 0.216em 0;
  content: '\3C1';
}

mjx-c.mjx-c1D449.TEX-I::before {
  padding: 0.683em 0.769em 0.022em 0;
  content: 'V';
}

mjx-c.mjx-c1D454.TEX-I::before {
  padding: 0.442em 0.477em 0.205em 0;
  content: 'g';
}

mjx-c.mjx-c4E::before {
  padding: 0.683em 0.75em 0 0;
  content: 'N';
}

mjx-c.mjx-c48::before {
  padding: 0.683em 0.75em 0 0;
  content: 'H';
}

mjx-c.mjx-c53::before {
  padding: 0.705em 0.556em 0.022em 0;
  content: 'S';
}

mjx-c.mjx-c4F::before {
  padding: 0.705em 0.778em 0.022em 0;
  content: 'O';
}

mjx-c.mjx-c27F6::before {
  padding: 0.511em 1.638em 0.011em 0;
  content: '\27F6';
}

mjx-c.mjx-c42::before {
  padding: 0.683em 0.708em 0 0;
  content: 'B';
}

mjx-c.mjx-c2193::before {
  padding: 0.694em 0.5em 0.194em 0;
  content: '\2193';
}

mjx-c.mjx-cA0::before {
  padding: 0 0.25em 0 0;
  content: '\A0';
}

mjx-c.mjx-c2191::before {
  padding: 0.694em 0.5em 0.193em 0;
  content: '\2191';
}