@charset "utf-8";
/*
 * Solo - A small and beautiful blogging system written in Java.
 * Copyright (c) 2010-present, b3log.org
 *
 * Solo is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *         http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
/*
 * skin finding style
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</a>
 * @author <a href="http://88250.b3log.org">Liang Ding</a>
 * @version 2.5.0.1, Feb 9, 2020
 */
/*
 * Solo - A small and beautiful blogging system written in Java.
 * Copyright (c) 2010-present, b3log.org
 *
 * Solo is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *         http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
/**
 * toc
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</ta>
 * @version 0.1.0.0, Mar 20, 2019
 */
.article__toc {
  overflow: auto;
}
.article__toc::-webkit-scrollbar {
  display: none;
}
.article__toc li {
  list-style-type: none;
}
.article__toc li a {
  padding-left: 10px;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article__toc li a:hover {
  text-decoration: none;
}
.article__toc li.toc__h3 a {
  padding-left: 20px;
}
.article__toc li.toc__h4 a {
  padding-left: 30px;
}
.article__toc li.toc__h5 a {
  padding-left: 40px;
}
.article__toc li.toc__h6 a {
  padding-left: 50px;
}
/*
 * Solo - A small and beautiful blogging system written in Java.
 * Copyright (c) 2010-present, b3log.org
 *
 * Solo is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *         http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
/**
 * uesr site
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</ta>
 * @version 0.1.0.0, Mar 20, 2019
 */
.user__site:hover {
  text-decoration: none;
}
.vditor {
  --border-color: #d1d5da;
  --second-color: rgba(88, 96, 105, 0.36);
  --panel-background-color: #fff;
  --panel-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  --toolbar-background-color: #f6f8fa;
  --toolbar-icon-color: #586069;
  --toolbar-icon-hover-color: #4285f4;
  --toolbar-height: 35px;
  --toolbar-divider-margin-top: 8px;
  --textarea-background-color: #fafbfc;
  --textarea-text-color: #24292e;
  --resize-icon-color: var(--toolbar-icon-color);
  --resize-background-color: var(--toolbar-background-color);
  --resize-hover-icon-color: var(--panel-background-color);
  --resize-hover-background-color: var(--toolbar-icon-hover-color);
  --count-background-color: rgba(27, 31, 35, 0.05);
  --heading-border-color: #eaecef;
  --blockquote-color: #6a737d;
  --ir-heading-color: #660e7a;
  --ir-title-color: #808080;
  --ir-bi-color: #0033b3;
  --ir-link-color: #008000;
  --ir-bracket-color: #0000ff;
  --ir-paren-color: #008000;
}
.vditor--dark {
  --border-color: #141414;
  --second-color: rgba(185, 185, 185, 0.36);
  --panel-background-color: #24292e;
  --panel-shadow: 0 1px 2px rgba(255, 255, 255, 0.2);
  --toolbar-background-color: #1d2125;
  --toolbar-icon-color: #b9b9b9;
  --toolbar-icon-hover-color: #fff;
  --textarea-background-color: #2f363d;
  --textarea-text-color: #d1d5da;
  --resize-icon-color: var(--border-color);
  --resize-background-color: var(--second-color);
  --resize-hover-icon-color: var(--toolbar-icon-hover-color);
  --resize-hover-background-color: rgba(185, 185, 185, 0.86);
  --count-background-color: rgba(66, 133, 244, 0.36);
  --heading-border-color: var(--textarea-text-color);
  --blockquote-color: var(--toolbar-icon-color);
  --ir-heading-color: #9876aa;
  --ir-title-color: #808080;
  --ir-bi-color: #cc7832;
  --ir-link-color: #ffc66d;
  --ir-bracket-color: #287bde;
  --ir-paren-color: #6a8759;
}
/**
 * tool tip.
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</a>
 * @version 0.1.0.0, Jan 25, 2019
 */
@-webkit-keyframes tooltip-appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes tooltip-appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.vditor-tooltipped {
  position: relative;
  cursor: pointer;
}
.vditor-tooltipped::after {
  position: absolute;
  z-index: 1000000;
  display: none;
  padding: 5px 8px;
  font-size: 11px;
  font-weight: normal;
  -webkit-font-smoothing: subpixel-antialiased;
  color: #fff;
  text-align: center;
  text-decoration: none;
  text-shadow: none;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: break-word;
  white-space: pre;
  pointer-events: none;
  content: attr(aria-label);
  background: #3b3e43;
  border-radius: 3px;
  line-height: 16px;
  opacity: 0;
}
.vditor-tooltipped::before {
  position: absolute;
  z-index: 1000001;
  display: none;
  width: 0;
  height: 0;
  color: #3b3e43;
  pointer-events: none;
  content: "";
  border: 5px solid transparent;
  opacity: 0;
}
.vditor-tooltipped--hover::before,
.vditor-tooltipped--hover::after,
.vditor-tooltipped:hover::before,
.vditor-tooltipped:hover::after,
.vditor-tooltipped:active::before,
.vditor-tooltipped:active::after,
.vditor-tooltipped:focus::before,
.vditor-tooltipped:focus::after {
  display: inline-block;
  text-decoration: none;
  -webkit-animation-name: tooltip-appear;
          animation-name: tooltip-appear;
  -webkit-animation-duration: 0.15s;
          animation-duration: 0.15s;
  -webkit-animation-fill-mode: forwards;
          animation-fill-mode: forwards;
  -webkit-animation-timing-function: ease-in;
          animation-timing-function: ease-in;
}
.vditor-tooltipped__s::after,
.vditor-tooltipped__se::after,
.vditor-tooltipped__sw::after {
  top: 100%;
  right: 50%;
  margin-top: 5px;
}
.vditor-tooltipped__s::before,
.vditor-tooltipped__se::before,
.vditor-tooltipped__sw::before {
  top: auto;
  right: 50%;
  bottom: -5px;
  margin-right: -5px;
  border-bottom-color: #3b3e43;
}
.vditor-tooltipped__se::after {
  right: auto;
  left: 50%;
  margin-left: -15px;
}
.vditor-tooltipped__sw::after {
  margin-right: -15px;
}
.vditor-tooltipped__n::after,
.vditor-tooltipped__ne::after,
.vditor-tooltipped__nw::after {
  right: 50%;
  bottom: 100%;
  margin-bottom: 5px;
}
.vditor-tooltipped__n::before,
.vditor-tooltipped__ne::before,
.vditor-tooltipped__nw::before {
  top: -5px;
  right: 50%;
  bottom: auto;
  margin-right: -5px;
  border-top-color: #3b3e43;
}
.vditor-tooltipped__ne::after {
  right: auto;
  left: 50%;
  margin-left: -15px;
}
.vditor-tooltipped__nw::after {
  margin-right: -15px;
}
.vditor-tooltipped__s::after,
.vditor-tooltipped__n::after {
  transform: translateX(50%);
}
.vditor-tooltipped__w::after {
  right: 100%;
  bottom: 50%;
  margin-right: 5px;
  transform: translateY(50%);
}
.vditor-tooltipped__w::before {
  top: 50%;
  bottom: 50%;
  left: -5px;
  margin-top: -5px;
  border-left-color: #3b3e43;
}
.vditor-tooltipped__e::after {
  bottom: 50%;
  left: 100%;
  margin-left: 5px;
  transform: translateY(50%);
}
.vditor-tooltipped__e::before {
  top: 50%;
  right: -5px;
  bottom: 50%;
  margin-top: -5px;
  border-right-color: #3b3e43;
}
@media screen and (max-width: 520px) {
  .vditor-tooltipped:before,
  .vditor-tooltipped:after {
    content: none;
  }
}
/**
 * panel.
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</a>
 * @version 1.0.0.0, Jan 22, 2020
 */
@-webkit-keyframes scale-in {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes scale-in {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
.vditor-panel {
  background-color: var(--panel-background-color);
  position: absolute;
  box-shadow: var(--panel-shadow);
  border-radius: 3px;
  padding: 5px;
  z-index: 3;
  font-size: 14px;
  display: none;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  max-width: 320px;
  min-width: 80px;
  -webkit-animation-duration: 0.15s;
          animation-duration: 0.15s;
  -webkit-animation-name: scale-in;
          animation-name: scale-in;
  -webkit-animation-timing-function: cubic-bezier(0.2, 0, 0.13, 1.5);
          animation-timing-function: cubic-bezier(0.2, 0, 0.13, 1.5);
  color: var(--toolbar-icon-color);
}
.vditor-panel--none {
  padding: 0;
  -webkit-animation: none;
          animation: none;
  min-width: auto;
  max-width: none;
  white-space: nowrap;
  opacity: 0.86;
}
.vditor-panel--arrow:before {
  position: absolute;
  width: 0;
  height: 0;
  pointer-events: none;
  content: " ";
  border: 7px solid transparent;
  top: -14px;
  left: 5px;
  border-bottom-color: var(--panel-background-color);
}
.vditor-panel--left {
  right: 0;
}
.vditor-panel--left.vditor-panel--arrow:before {
  right: 5px;
  left: auto;
}
.vditor-input {
  border: 0;
  padding: 3px 5px;
  background-color: var(--panel-background-color);
  font-size: 12px;
  color: var(--textarea-text-color);
}
.vditor-input:focus {
  background-color: var(--toolbar-background-color);
  outline: none;
}
.vditor-icon {
  color: var(--toolbar-icon-color);
  cursor: pointer;
  float: left;
  padding: 4px 5px;
  height: 21px;
  width: 23px;
  background-color: transparent;
  border: 0;
  box-sizing: border-box;
}
.vditor-icon:hover,
.vditor-icon--current {
  color: var(--toolbar-icon-hover-color);
  background-color: transparent;
}
.vditor-icon:focus {
  outline: none;
}
.vditor-icon svg {
  height: 13px !important;
  width: 13px !important;
  float: left;
  fill: currentColor;
  pointer-events: none;
}
.vditor-toolbar {
  background-color: var(--toolbar-background-color);
  border-bottom: 1px solid var(--border-color);
  padding: 0 5px;
  line-height: 1;
}
.vditor-toolbar--pin {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1;
}
.vditor-toolbar--hide {
  transition: all 0.15s ease-in-out;
  height: 5px;
  overflow: hidden;
}
.vditor-toolbar--hide:hover {
  background-color: var(--toolbar-background-color);
  height: auto;
  overflow: visible;
}
.vditor-toolbar__item {
  float: left;
  position: relative;
}
.vditor-toolbar__item .vditor-tooltipped {
  color: var(--toolbar-icon-color);
  border: 0;
  padding: 10px 5px;
  background-color: transparent;
  height: var(--toolbar-height);
  width: 25px;
  box-sizing: border-box;
  font-size: 0;
}
.vditor-toolbar__item .vditor-tooltipped:focus {
  outline: none;
}
.vditor-toolbar__item .vditor-tooltipped:focus {
  cursor: pointer;
  color: var(--toolbar-icon-hover-color);
}
.vditor-toolbar__item svg {
  fill: currentColor;
  display: inline-block;
  stroke-width: 0;
  stroke: currentColor;
  width: 15px;
  height: 15px;
}
.vditor-toolbar__item input {
  position: absolute;
  width: 25px;
  height: var(--toolbar-height);
  top: 0;
  left: 0;
  cursor: pointer;
  opacity: 0.001;
  overflow: hidden;
}
.vditor-toolbar__divider {
  float: left;
  height: calc(var(--toolbar-height) - (var(--toolbar-divider-margin-top) * 2));
  border-left: 1px solid var(--second-color);
  margin: var(--toolbar-divider-margin-top) 8px;
}
.vditor-toolbar__br {
  width: 100%;
  padding: 0 !important;
  height: 0 !important;
}
.vditor-menu--current {
  color: var(--toolbar-icon-hover-color) !important;
}
.vditor-menu--disabled {
  color: var(--second-color) !important;
  cursor: not-allowed !important;
}
.vditor-emojis {
  display: inline-block;
  overflow: auto;
}
.vditor-emojis::-webkit-scrollbar {
  display: none;
}
.vditor-emojis__tip {
  flex: 1;
  min-width: 1px;
  width: 200px;
  margin-right: 10px;
  color: var(--toolbar-icon-color);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.vditor-emojis__tail {
  margin-top: 5px;
  font-size: 12px;
  color: var(--toolbar-icon-color);
  display: flex;
}
.vditor-emojis__tail a {
  text-decoration: none;
  color: var(--toolbar-icon-color);
}
.vditor-emojis__tail a:hover {
  color: var(--toolbar-icon-hover-color);
}
.vditor-emojis button {
  cursor: pointer;
  border-radius: 3px;
  float: left;
  height: 30px;
  width: 30px;
  text-align: center;
  line-height: 26px;
  padding: 3px;
  box-sizing: border-box;
  font-size: 16px;
  transition: all 0.15s ease-in-out;
  border: 0;
  margin: 0;
  background-color: transparent;
  overflow: hidden;
}
.vditor-emojis button:focus {
  outline: none;
}
.vditor-emojis button:hover .vditor-emojis__icon {
  display: inline-block;
  transform: scale(1.2);
}
.vditor-emojis img {
  height: 20px;
  width: 20px;
  float: left;
  margin: 3px 0 0 3px;
}
@media screen and (max-width: 520px) {
  .vditor-toolbar__item {
    padding: 0 12px;
  }
  .vditor-panel--left.vditor-panel--arrow:before {
    right: 17px;
  }
}
@media (hover: hover) and (pointer: fine) {
  .vditor-toolbar__item .vditor-tooltipped:hover {
    color: var(--toolbar-icon-hover-color);
  }
}
@-webkit-keyframes slideInDown {
  from {
    transform: translate3d(0, -100%, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}
@keyframes slideInDown {
  from {
    transform: translate3d(0, -100%, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}
.vditor {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  box-sizing: border-box;
  font-family: "Helvetica Neue", "Luxi Sans", "DejaVu Sans", "Hiragino Sans GB", "Microsoft Yahei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
}
.vditor .vditor-copy {
  z-index: auto;
}
.vditor--fullscreen {
  position: fixed;
  top: 0;
  width: 100% !important;
  left: 0;
  height: 100vh !important;
  z-index: 90;
  border-radius: 0;
}
.vditor-content {
  display: flex;
  min-height: 60px;
  flex: 1;
  min-width: 1px;
  position: relative;
}
.vditor-preview {
  flex: 1;
  min-width: 1px;
  overflow: auto;
  margin-left: -1px;
  border-left: 1px solid var(--border-color);
  box-sizing: border-box;
  border-radius: 0 0 3px 0;
  background-color: var(--textarea-background-color);
}
.vditor-preview::-webkit-scrollbar {
  display: none;
}
.vditor-preview__action {
  text-align: center;
  padding: 10px;
  background-color: var(--toolbar-background-color);
}
.vditor-preview__action button {
  background-color: var(--toolbar-background-color);
  color: var(--toolbar-icon-color);
  line-height: 20px;
  border: 0;
  margin: 0 10px;
  cursor: pointer;
  padding: 0 7px;
  font-size: 12px;
}
.vditor-preview__action button.vditor-preview__action--current,
.vditor-preview__action button:hover {
  color: var(--toolbar-icon-hover-color);
  background-color: var(--toolbar-background-color);
}
.vditor-preview__action button:focus {
  outline: none;
}
.vditor-preview__action button svg {
  fill: currentColor;
  height: 15px;
  width: 15px;
  vertical-align: middle;
}
.vditor-preview > .vditor-reset {
  padding: 10px;
  margin: 0 auto;
}
.vditor-preview img:not(.emoji) {
  cursor: pointer;
}
.vditor-devtools {
  display: none;
  background-color: var(--textarea-background-color);
  overflow: auto;
  flex: 1;
  min-width: 1px;
  box-shadow: inset 1px 0 var(--border-color);
  box-sizing: border-box;
  border-radius: 0 0 3px 0;
  padding: 10px;
}
.vditor-counter {
  padding: 3px;
  color: var(--toolbar-icon-color);
  background-color: var(--count-background-color);
  border-radius: 3px;
  font-size: 12px;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  float: right;
  margin: 8px 3px 0 0;
}
.vditor-counter--error {
  color: #d23f31;
  background-color: rgba(210, 63, 49, 0.1);
}
.vditor-resize {
  padding: 3px 0;
  cursor: row-resize;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  position: absolute;
  width: 100%;
}
.vditor-resize--top {
  top: -3px;
}
.vditor-resize--bottom {
  bottom: -3px;
}
.vditor-resize > div {
  height: 3px;
  background-color: var(--resize-background-color);
  transition: all 0.15s ease-in-out;
}
.vditor-resize:hover > div,
.vditor-resize--selected > div {
  background-color: var(--resize-hover-background-color);
}
.vditor-resize:hover svg,
.vditor-resize--selected svg {
  color: var(--resize-hover-icon-color);
}
.vditor-resize svg {
  fill: currentColor;
  stroke-width: 0;
  stroke: currentColor;
  width: 13px;
  height: 3px;
  display: block;
  margin: 0 auto;
  color: var(--resize-icon-color);
}
.vditor-upload {
  position: absolute;
  height: 3px;
  left: 0;
  top: -2px;
  transition: all 0.15s ease-in-out;
  background-color: #4285f4;
}
.vditor-tip {
  position: absolute;
  font-size: 12px;
  top: 10px;
  -webkit-animation-duration: 0.15s;
          animation-duration: 0.15s;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  left: 50%;
  z-index: 5;
}
.vditor-tip--show {
  display: block;
  -webkit-animation-name: slideInDown;
          animation-name: slideInDown;
}
.vditor-tip__content {
  text-align: left;
  display: inline-block;
  line-height: 16px;
  padding: 3px 10px;
  border-radius: 3px;
  background: var(--toolbar-background-color);
  position: relative;
  margin-left: -50%;
  color: var(--toolbar-icon-color);
  max-width: 100%;
  box-shadow: var(--panel-shadow);
}
.vditor-tip__content ul {
  margin: 2px 0;
  padding: 0 0 0 18px;
}
.vditor-tip__content a {
  color: #4285f4;
}
.vditor-tip__close {
  position: absolute;
  color: var(--toolbar-icon-color);
  top: -7px;
  right: -15px;
  font-weight: bold;
  cursor: pointer;
}
.vditor-tip__close:hover {
  color: var(--toolbar-icon-hover-color);
}
.vditor-img {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 3;
}
.vditor-img__bar {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--toolbar-background-color);
  text-align: center;
  height: 36px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}
.vditor-img__btn {
  display: flex;
  align-items: center;
  cursor: pointer;
  margin-left: 24px;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  color: var(--toolbar-icon-color);
}
.vditor-img__btn:hover {
  color: var(--toolbar-icon-hover-color);
}
.vditor-img__btn svg {
  height: 14px;
  width: 14px;
  margin-right: 8px;
  fill: currentColor;
}
.vditor-img__img {
  flex: 1;
  background-color: var(--textarea-background-color);
  overflow: auto;
  cursor: zoom-out;
}
.vditor-img__img img {
  max-width: none;
}
.vditor-hint {
  background-color: var(--panel-background-color);
  position: absolute;
  box-shadow: var(--panel-shadow);
  border-radius: 3px;
  padding: 5px 0;
  z-index: 4;
  line-height: 20px;
  list-style: none;
  font-size: 12px;
  margin: 0;
  max-width: 250px;
  min-width: 80px;
  display: none;
}
.vditor-hint .vditor-hint {
  margin-top: -31px;
  left: 100%;
  right: auto;
}
.vditor-hint .vditor-hint.vditor-panel--left {
  right: 100%;
  left: auto;
}
.vditor-hint button {
  color: var(--toolbar-icon-color);
  display: block;
  padding: 3px 10px;
  border: 0;
  border-radius: 0;
  line-height: 20px;
  width: 100%;
  box-sizing: border-box;
  text-align: left;
  margin: 0;
  background-color: transparent;
  cursor: pointer;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.vditor-hint button:focus {
  outline: none;
}
.vditor-hint--current,
.vditor-hint button:not(.vditor-menu--disabled):hover {
  background-color: var(--toolbar-background-color) !important;
  color: var(--toolbar-icon-hover-color) !important;
}
.vditor-hint__emoji {
  font-size: 16px;
  float: left;
  margin-right: 3px;
}
.vditor-hint img {
  height: 20px;
  width: 20px;
  float: left;
  margin-right: 3px;
}
.vditor-reset {
  color: #24292e;
  font-variant-ligatures: no-common-ligatures;
  font-family: "Helvetica Neue", "Luxi Sans", "DejaVu Sans", "Hiragino Sans GB", "Microsoft Yahei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  word-wrap: break-word;
  overflow: auto;
  line-height: 1.5;
  font-size: 16px;
  word-break: break-word;
}
.vditor-reset--anchor {
  padding-left: 20px;
}
.vditor-reset--error {
  color: #d23f31;
  font-size: 12px;
  display: block;
  line-height: 16px;
}
.vditor-reset ul ul ul {
  list-style-type: square;
}
.vditor-reset ul ul {
  list-style-type: circle;
}
.vditor-reset ul {
  list-style-type: disc;
}
.vditor-reset ul,
.vditor-reset ol {
  padding-left: 2em;
  margin-top: 0;
  margin-bottom: 16px;
}
.vditor-reset li + li {
  margin-top: 0.25em;
}
.vditor-reset audio {
  max-width: 100%;
}
.vditor-reset audio:focus {
  outline: none;
}
.vditor-reset video {
  max-height: 90vh;
  max-width: 100%;
}
.vditor-reset img {
  max-width: 100%;
}
.vditor-reset img.emoji {
  cursor: auto;
  max-width: 20px;
  vertical-align: sub;
}
.vditor-reset h1,
.vditor-reset h2,
.vditor-reset h3,
.vditor-reset h4,
.vditor-reset h5,
.vditor-reset h6 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
  line-height: 1.25;
}
.vditor-reset h1:hover .vditor-anchor svg,
.vditor-reset h2:hover .vditor-anchor svg,
.vditor-reset h3:hover .vditor-anchor svg,
.vditor-reset h4:hover .vditor-anchor svg,
.vditor-reset h5:hover .vditor-anchor svg,
.vditor-reset h6:hover .vditor-anchor svg {
  visibility: visible;
}
.vditor-reset h1 {
  font-size: 1.75em;
}
.vditor-reset h2 {
  font-size: 1.55em;
}
.vditor-reset h3 {
  font-size: 1.38em;
}
.vditor-reset h4 {
  font-size: 1.25em;
}
.vditor-reset h5 {
  font-size: 1.13em;
}
.vditor-reset h6 {
  font-size: 1em;
}
.vditor-reset hr {
  height: 2px;
  padding: 0;
  margin: 24px 0;
  background-color: #eaecef;
  border: 0;
}
.vditor-reset p {
  margin-top: 0;
  margin-bottom: 16px;
}
.vditor-reset blockquote {
  padding: 0 1em;
  color: #6a737d;
  border-left: 0.25em solid #eaecef;
  margin: 0 0 16px 0;
}
.vditor-reset blockquote > :first-child {
  margin-top: 0;
}
.vditor-reset blockquote > :last-child {
  margin-bottom: 0;
}
.vditor-reset ins > iframe {
  border: 0;
}
.vditor-reset iframe {
  border: 1px solid #d1d5da;
  max-width: 100%;
  box-sizing: border-box;
}
.vditor-reset iframe.iframe__video {
  min-width: 80%;
  min-height: 36vh;
}
.vditor-reset table {
  border-collapse: collapse;
  empty-cells: show;
  margin-bottom: 16px;
  overflow: auto;
  border-spacing: 0;
  display: block;
  word-break: keep-all;
  width: 100%;
}
.vditor-reset table tr {
  background-color: #fafbfc;
  border-top: 1px solid #c6cbd1;
}
.vditor-reset table td,
.vditor-reset table th {
  padding: 6px 13px;
  border: 1px solid #dfe2e5;
  word-break: normal;
  white-space: nowrap;
}
.vditor-reset table td:first-child::after,
.vditor-reset table th:first-child::after {
  content: "";
  display: inline-block;
  vertical-align: top;
  min-height: 24px;
}
.vditor-reset table th {
  font-weight: 600;
}
.vditor-reset table tbody tr:nth-child(2n) {
  background-color: #fff;
}
.vditor-reset code:not(.hljs):not(.highlight-chroma) {
  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  border-radius: 3px;
  font-family: mononoki, Consolas, "Liberation Mono", Menlo, Courier, monospace, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  word-break: break-word;
  background-size: 20px 20px;
  white-space: pre-wrap;
}
.vditor-reset pre {
  margin: 1em 0;
}
.vditor-reset pre > code {
  margin: 0;
  font-size: 85%;
  padding: 0.5em;
  border-radius: 5px;
  display: block;
  overflow: auto;
  white-space: pre;
  font-family: mononoki, Consolas, "Liberation Mono", Menlo, Courier, monospace, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  background-size: 20px 20px;
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADwAAAA8AgMAAABHkjHhAAAACVBMVEWAgIBaWlo+Pj7rTFvWAAAAA3RSTlMHCAw+VhR4AAAA+klEQVQoz4WSMW7EQAhFPxKWNh2FCx+HkaZI6RRb5DYbyVfIJXLKDCFoMbaTKSw/8ZnPAPjaH2xgZcUNUDADD7D9LtDBCLZ45fbkvo/30K8yeI64pPwl6znd/3n/Oe93P3ho9qeh72btTFzqkz0rsJle8Zr81OLEwZ1dv/713uWqvu2pl+k0fy7MWtj9r/tN5q/02z89qa/L4Dc2LvM93kezPfXlME/O86EbY/V9GB9ePX8G1/6W+/9h1dq/HGfTfzT3j/xNo7522Bfnqe5jO/fvhVthlfk434v3iO9zG/UOphyPeinPl1J8Gtaa7xPTa/Dk+RIs4deMvwGvcGsmsCvJ0AAAAABJRU5ErkJggg==);
  word-break: initial;
  word-wrap: normal;
}
.vditor-reset pre:hover div.vditor-copy {
  display: block;
}
.vditor-reset .language-math,
.vditor-reset .language-echarts,
.vditor-reset .language-mindmap,
.vditor-reset .language-plantuml,
.vditor-reset .language-mermaid,
.vditor-reset .language-abc,
.vditor-reset .language-flowchart,
.vditor-reset .language-graphviz {
  margin-bottom: 16px;
}
.vditor-reset .language-math mjx-container:focus {
  outline: none;
  cursor: context-menu;
}
.vditor-reset .language-echarts,
.vditor-reset .language-mindmap {
  overflow: hidden;
  height: 420px;
}
.vditor-reset .language-mermaid,
.vditor-reset .language-flowchart,
.vditor-reset .language-graphviz {
  text-align: center;
}
.vditor-reset .language-graphviz parsererror {
  overflow: auto;
}
.vditor-reset kbd {
  display: inline-block;
  padding: 3px 5px;
  font: 11px Consolas, "Liberation Mono", Menlo, Courier, monospace;
  line-height: 10px;
  color: #24292e;
  vertical-align: middle;
  background-color: #fafbfc;
  border: solid 1px #d1d5da;
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 #d1d5da;
}
.vditor-reset summary {
  cursor: pointer;
}
.vditor-reset summary:focus {
  outline: none;
}
.vditor-reset svg {
  height: auto;
  width: auto;
  stroke-width: initial;
}
.vditor-reset p:last-child,
.vditor-reset blockquote:last-child,
.vditor-reset pre:last-child,
.vditor-reset ul:last-child,
.vditor-reset ol:last-child,
.vditor-reset hr:last-child {
  margin-bottom: 0;
}
.vditor-comment {
  border-bottom: 2px solid #f8e6ab;
}
.vditor-comment--focus,
.vditor-comment--hover {
  background-color: #faf1d1;
  border-bottom: 2px solid #ffc60a;
}
.vditor-comment--focus .vditor-comment,
.vditor-comment--hover .vditor-comment {
  border-bottom: 2px solid #ffc60a;
}
.vditor-task {
  list-style: none !important;
  word-break: break-all;
}
.vditor-task input {
  margin: 0 0.2em 0.25em -1.6em;
  font-size: 12px;
  vertical-align: middle;
}
.vditor-copy {
  position: relative;
  display: none;
  z-index: 1;
}
.vditor-copy textarea {
  position: absolute;
  left: -100000px;
  height: 10px;
}
.vditor-copy span {
  cursor: pointer;
  position: absolute;
  right: 15px;
  top: 0.5em;
}
.vditor-copy svg {
  color: #586069;
  height: 14px;
  width: 14px !important;
  display: block;
  fill: currentColor;
}
.vditor-linenumber {
  padding-left: 4em !important;
  position: relative;
}
.vditor-linenumber__rows {
  position: absolute;
  pointer-events: none;
  top: 0.5em;
  left: 0;
  width: 3em;
  /* works for line-numbers below 1000 lines */
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  counter-reset: linenumber;
}
.vditor-linenumber__rows > span {
  pointer-events: none;
  display: block;
}
.vditor-linenumber__rows > span::before {
  counter-increment: linenumber;
  content: counter(linenumber);
  color: rgba(158, 150, 150, 0.38);
  display: block;
  padding-right: 1em;
  text-align: right;
}
.vditor-speech {
  position: absolute;
  display: none;
  background-color: #f6f8fa;
  border: 1px solid #d1d5da;
  border-radius: 3px;
  padding: 3px;
  cursor: pointer;
  color: #586069;
}
.vditor-speech:hover,
.vditor-speech--current {
  color: #4285f4;
}
.vditor-speech svg {
  height: 14px;
  width: 14px;
  fill: currentColor;
  display: block;
  stroke-width: 0;
  stroke: currentColor;
}
.vditor-anchor {
  margin-left: 5px;
}
.vditor-anchor--left {
  float: left;
  padding-right: 4px;
  margin-left: -20px;
}
.vditor-anchor svg {
  visibility: hidden;
}
.vditor-anchor:hover svg {
  visibility: visible;
}
.vditor-anchor:focus {
  outline: none;
}
.vditor-linkcard {
  margin: 31px auto 16px;
  transition: all 0.15s ease-in-out;
  cursor: pointer;
  max-width: 768px;
  padding: 0 10px;
}
.vditor-linkcard a {
  border-radius: 3px;
  background-color: #f6f8fa;
  overflow: hidden;
  max-height: 250px;
  display: flex;
  text-decoration: none;
  flex-wrap: wrap-reverse;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
.vditor-linkcard a:hover {
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.13), 0 3px 6px rgba(0, 0, 0, 0.26);
  text-decoration: none;
}
.vditor-linkcard a:visited .vditor-linkcard__abstract {
  color: rgba(88, 96, 105, 0.36);
}
.vditor-linkcard__info {
  padding: 10px;
  min-width: 200px;
  box-sizing: border-box;
  flex: 1;
}
.vditor-linkcard__title {
  font-size: 14px;
  font-weight: 400;
  color: #24292e;
  display: flex;
  align-items: center;
}
.vditor-linkcard__title img {
  cursor: pointer;
  height: 20px;
  width: 20px;
  border-radius: 3px;
  flex-shrink: 0;
  margin-right: 5px;
}
.vditor-linkcard__abstract {
  word-wrap: break-word;
  word-break: break-all;
  -webkit-line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  display: -webkit-box;
  font-size: 13px;
  color: #586069;
  margin: 5px 0;
}
.vditor-linkcard__site {
  font-size: 12px;
  color: #4285f4;
}
.vditor-linkcard__image {
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  max-width: 250px;
  min-width: 126px;
  cursor: pointer;
  background-color: rgba(88, 96, 105, 0.36);
}
.vditor-footnotes__goto-ref {
  text-decoration: none;
}
.vditor-toc {
  margin-bottom: 16px;
  -webkit-user-select: text;
     -moz-user-select: text;
      -ms-user-select: text;
          user-select: text;
  color: #4285f4;
}
.vditor-toc .vditor-outline__action {
  display: none;
}
.vditor-toc ul {
  list-style: none !important;
  padding-left: 1em;
}
.vditor-toc > ul {
  padding-left: 0;
}
.vditor-toc span {
  cursor: pointer;
}
.vditor-toc li > span > svg {
  width: 0;
  height: 0;
}
.vditor-outline {
  width: 250px;
  border-right: 1px solid var(--border-color);
  background-color: var(--panel-background-color);
  display: none;
  overflow: auto;
}
.vditor-outline--right {
  border-right: 0;
  border-left: 1px solid var(--border-color);
}
.vditor-outline::-webkit-scrollbar {
  display: none;
}
.vditor-outline ul {
  list-style: none !important;
  padding-left: 1em;
  margin: 0;
}
.vditor-outline__content > ul {
  padding-left: 0;
}
.vditor-outline li > span {
  display: flex;
  align-items: center;
  padding: 5px 10px;
  cursor: pointer;
  color: var(--textarea-text-color);
}
.vditor-outline li > span > svg {
  height: 10px;
  width: 10px;
}
.vditor-outline li > span:hover {
  color: var(--toolbar-icon-hover-color);
}
.vditor-outline li > span > span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.vditor-outline__title {
  border-bottom: 1px dashed var(--border-color);
  padding: 5px 10px;
  color: var(--toolbar-icon-color);
  font-size: 12px;
}
.vditor-outline__action {
  transition: all 0.15s ease-in-out;
  fill: currentColor;
  margin-right: 5px;
  flex-shrink: 0;
}
.vditor-outline__action--close {
  transform: rotate(-90deg);
}
.vditor-wysiwyg {
  box-sizing: border-box;
  flex: 1;
  position: relative;
  width: 100%;
  min-width: 1px;
}
.vditor-wysiwyg pre.vditor-reset {
  background-color: var(--panel-background-color);
  margin: 0;
  white-space: pre-wrap;
  height: 100%;
  box-sizing: border-box;
}
.vditor-wysiwyg pre.vditor-reset[contenteditable="false"] {
  opacity: 0.3;
  cursor: not-allowed;
}
.vditor-wysiwyg pre.vditor-reset:empty::before {
  content: attr(placeholder);
  color: var(--second-color);
}
.vditor-wysiwyg pre.vditor-reset:focus {
  outline: none;
  background-color: var(--textarea-background-color);
}
.vditor-wysiwyg pre.vditor-reset:after {
  content: "";
  height: var(--editor-bottom);
  display: block;
}
.vditor-wysiwyg blockquote:empty::before,
.vditor-wysiwyg pre > code:empty::before,
.vditor-wysiwyg p:empty::before,
.vditor-wysiwyg h1:empty::after,
.vditor-wysiwyg h2:empty::after,
.vditor-wysiwyg h3:empty::after,
.vditor-wysiwyg h4:empty::after,
.vditor-wysiwyg h5:empty::after,
.vditor-wysiwyg h6:empty::after {
  content: ' ';
}
.vditor-wysiwyg code[data-marker="`"] {
  padding-left: 0 !important;
  padding-right: 0 !important;
}
.vditor-wysiwyg__block pre:first-child {
  margin-bottom: -1em;
}
.vditor-wysiwyg__block pre:first-child code {
  color: var(--textarea-text-color);
  height: auto;
  text-align: left;
}
.vditor-wysiwyg__block pre:last-child {
  margin-bottom: 1em;
}
.vditor-wysiwyg__preview {
  cursor: pointer;
  white-space: initial;
  min-height: 27px;
}
.vditor-wysiwyg > .vditor-reset > h1:before,
.vditor-wysiwyg > .vditor-reset > h2:before,
.vditor-wysiwyg > .vditor-reset > h3:before,
.vditor-wysiwyg > .vditor-reset > h4:before,
.vditor-wysiwyg > .vditor-reset > h5:before,
.vditor-wysiwyg > .vditor-reset > h6:before,
.vditor-wysiwyg div.vditor-wysiwyg__block:before,
.vditor-wysiwyg div[data-type="link-ref-defs-block"]:before,
.vditor-wysiwyg div[data-type="footnotes-block"]:before,
.vditor-wysiwyg .vditor-toc:before {
  float: left;
  padding-right: 4px;
  margin-left: -29px;
  content: 'H1';
  font-size: 0.85rem;
  font-weight: normal;
  color: var(--second-color);
}
.vditor-wysiwyg > .vditor-reset > h2:before {
  content: 'H2';
}
.vditor-wysiwyg > .vditor-reset > h3:before {
  content: 'H3';
}
.vditor-wysiwyg > .vditor-reset > h4:before {
  content: 'H4';
}
.vditor-wysiwyg > .vditor-reset > h5:before {
  content: 'H5';
}
.vditor-wysiwyg > .vditor-reset > h6:before {
  content: 'H6';
}
.vditor-wysiwyg div[data-type="link-ref-defs-block"]:before {
  content: '"A"';
}
.vditor-wysiwyg div[data-type="footnotes-block"]:before {
  content: '^F';
}
.vditor-wysiwyg div.vditor-wysiwyg__block:before {
  content: "</>";
}
.vditor-wysiwyg div.vditor-wysiwyg__block[data-type="yaml-front-matter"]:before {
  content: "F";
}
.vditor-wysiwyg div.vditor-wysiwyg__block[data-type="math-block"]:before {
  content: "$$";
}
.vditor-wysiwyg .vditor-toc:before {
  content: "ToC";
}
.vditor-wysiwyg hr {
  display: inline-block;
  margin: 12px 0;
  width: 100%;
}
.vditor-wysiwyg details {
  white-space: initial;
}
.vditor-wysiwyg a {
  cursor: pointer;
}
.vditor-wysiwyg span[data-type="backslash"] > span {
  display: none;
  color: var(--second-color);
}
.vditor-wysiwyg span[data-type="link-ref"],
.vditor-wysiwyg sup[data-type="footnotes-ref"] {
  color: #4285f4;
}
.vditor-wysiwyg span[data-type="toc-h"] {
  color: #4285f4;
  text-decoration: underline;
}
.vditor-wysiwyg div[data-type="footnotes-block"] {
  border-top: 2px solid var(--heading-border-color);
  padding-top: 24px;
  margin-top: 24px;
}
.vditor-wysiwyg div[data-type="link-ref-defs-block"] {
  color: var(--blockquote-color);
}
@media screen and (max-width: 520px) {
  .vditor-wysiwyg h1:before,
  .vditor-wysiwyg h2:before,
  .vditor-wysiwyg h3:before,
  .vditor-wysiwyg h4:before,
  .vditor-wysiwyg h5:before,
  .vditor-wysiwyg h6:before,
  .vditor-wysiwyg div.vditor-wysiwyg__block:before,
  .vditor-wysiwyg div[data-type="link-ref-defs-block"]:before,
  .vditor-wysiwyg div[data-type="footnotes-block"]:before,
  .vditor-wysiwyg .vditor-toc:before {
    content: none;
  }
}
.vditor-ir {
  box-sizing: border-box;
  flex: 1;
  min-width: 1px;
  position: relative;
  width: 100%;
}
.vditor-ir__node[data-type="code-block"]:before,
.vditor-ir__node[data-type="code-block"]:after,
.vditor-ir__node[data-type="yaml-front-matter"]:before,
.vditor-ir__node[data-type="yaml-front-matter"]:after,
.vditor-ir__node[data-type="math-block"]:before,
.vditor-ir__node[data-type="math-block"]:after {
  content: ' ';
  color: var(--second-color);
}
.vditor-ir__node:not(.vditor-ir__node--expand) .vditor-ir__marker {
  padding: 0 !important;
}
.vditor-ir__node:not(.vditor-ir__node--expand)[data-type="a"] {
  cursor: pointer;
}
.vditor-ir__node[data-type="link-ref"],
.vditor-ir__node[data-type="footnotes-ref"] {
  color: #4285f4;
}
.vditor-ir__node[data-type="html-block"] {
  margin-bottom: 1em;
}
.vditor-ir__node .vditor-ir__marker {
  width: 0;
  overflow: hidden;
  display: inline-block;
  height: 0;
  transition: all 0.15s ease-in-out;
}
.vditor-ir__node--hidden .vditor-ir__marker {
  visibility: hidden;
}
.vditor-ir__node--expand .vditor-ir__marker {
  color: var(--second-color);
  display: inline;
  height: auto;
  width: auto;
}
.vditor-ir__node--expand .vditor-ir__marker--hide {
  display: none;
}
.vditor-ir__node--expand .vditor-ir__marker--heading {
  color: var(--ir-heading-color);
}
.vditor-ir__node--expand .vditor-ir__marker--bi {
  color: var(--ir-bi-color);
}
.vditor-ir__node--expand .vditor-ir__marker--link {
  color: var(--ir-link-color);
}
.vditor-ir__node--expand .vditor-ir__marker--title {
  color: var(--ir-title-color);
}
.vditor-ir__node--expand .vditor-ir__marker--bracket {
  color: var(--ir-bracket-color);
  text-decoration: underline;
}
.vditor-ir__node--expand .vditor-ir__marker--paren {
  color: var(--ir-paren-color);
}
.vditor-ir__node--expand .vditor-ir__marker--info {
  color: var(--ir-heading-color);
}
.vditor-ir__node--expand .vditor-ir__marker--pre code {
  color: var(--textarea-text-color);
  height: auto;
  text-align: left;
}
.vditor-ir__node--expand[data-type="code-block"]:before,
.vditor-ir__node--expand[data-type="code-block"]:after {
  content: '```';
}
.vditor-ir__node--expand[data-type="yaml-front-matter"]:before,
.vditor-ir__node--expand[data-type="yaml-front-matter"]:after {
  content: '---';
}
.vditor-ir__node--expand[data-type="math-block"]:before,
.vditor-ir__node--expand[data-type="math-block"]:after {
  content: '$$';
}
.vditor-ir__node span[data-type="code-block-open-marker"],
.vditor-ir__node span[data-type="code-block-close-marker"],
.vditor-ir__node span[data-type="yaml-front-matter-open-marker"],
.vditor-ir__node span[data-type="yaml-front-matter-close-marker"],
.vditor-ir__node span[data-type="math-block-open-marker"],
.vditor-ir__node span[data-type="math-block-close-marker"] {
  display: none;
}
.vditor-ir__preview {
  cursor: pointer;
  white-space: initial;
  min-height: 27px;
}
.vditor-ir__link {
  color: var(--ir-bracket-color);
  text-decoration: underline;
}
.vditor-ir pre.vditor-reset {
  background-color: var(--panel-background-color);
  margin: 0;
  white-space: pre-wrap;
  height: 100%;
  box-sizing: border-box;
}
.vditor-ir pre.vditor-reset[contenteditable="false"] {
  opacity: 0.3;
  cursor: not-allowed;
}
.vditor-ir pre.vditor-reset:empty::before {
  content: attr(placeholder);
  color: var(--second-color);
}
.vditor-ir pre.vditor-reset:focus {
  outline: none;
  background-color: var(--textarea-background-color);
}
.vditor-ir pre.vditor-reset:after {
  content: "";
  height: var(--editor-bottom);
  display: block;
}
.vditor-ir pre.vditor-reset pre {
  margin: 0;
}
.vditor-ir hr {
  display: inline-block;
  margin: 12px 0;
  width: 100%;
}
.vditor-ir blockquote:empty::before,
.vditor-ir pre > code:empty::before,
.vditor-ir p:empty::before,
.vditor-ir h1:empty::after,
.vditor-ir h2:empty::after,
.vditor-ir h3:empty::after,
.vditor-ir h4:empty::after,
.vditor-ir h5:empty::after,
.vditor-ir h6:empty::after {
  content: ' ';
}
.vditor-ir .vditor-reset > h1:before,
.vditor-ir .vditor-reset > h2:before,
.vditor-ir .vditor-reset > h3:before,
.vditor-ir .vditor-reset > h4:before,
.vditor-ir .vditor-reset > h5:before,
.vditor-ir .vditor-reset > h6:before,
.vditor-ir div[data-type="link-ref-defs-block"]:before,
.vditor-ir div[data-type="footnotes-block"]:before,
.vditor-ir .vditor-toc:before {
  float: left;
  padding-right: 4px;
  margin-left: -29px;
  content: 'H1';
  font-size: 0.85rem;
  font-weight: normal;
  color: var(--second-color);
}
.vditor-ir .vditor-reset > h2:before {
  content: 'H2';
}
.vditor-ir .vditor-reset > h3:before {
  content: 'H3';
}
.vditor-ir .vditor-reset > h4:before {
  content: 'H4';
}
.vditor-ir .vditor-reset > h5:before {
  content: 'H5';
}
.vditor-ir .vditor-reset > h6:before {
  content: 'H6';
}
.vditor-ir div[data-type="link-ref-defs-block"] {
  color: var(--blockquote-color);
}
.vditor-ir div[data-type="link-ref-defs-block"]:before {
  content: '"A"';
}
.vditor-ir div[data-type="footnotes-block"] {
  border-top: 2px solid var(--heading-border-color);
  padding-top: 24px;
  margin-top: 24px;
}
.vditor-ir div[data-type="footnotes-block"]:before {
  content: '^F';
}
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > ul,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > ol,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > p,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > blockquote,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > pre,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > table,
.vditor-ir div[data-type="footnotes-block"] > div[data-type="footnotes-def"] > hr {
  margin-left: 8px;
}
.vditor-ir .vditor-toc:before {
  content: "ToC";
}
.vditor-ir .vditor-toc span[data-type="toc-h"] {
  color: #4285f4;
  text-decoration: underline;
}
@media screen and (max-width: 520px) {
  .vditor-ir h1:before,
  .vditor-ir h2:before,
  .vditor-ir h3:before,
  .vditor-ir h4:before,
  .vditor-ir h5:before,
  .vditor-ir h6:before,
  .vditor-ir div[data-type="link-ref-defs-block"]:before,
  .vditor-ir div[data-type="footnotes-block"]:before,
  .vditor-ir .vditor-toc:before {
    content: none;
  }
}
.vditor-sv {
  font-family: "Helvetica Neue", "Luxi Sans", "DejaVu Sans", "Hiragino Sans GB", "Microsoft Yahei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", "Android Emoji", "EmojiSymbols";
  margin: 0 1px 0 0;
  overflow: auto;
  width: 100%;
  flex: 1;
  min-width: 1px;
  border: 0;
  resize: none;
  padding: 10px 9px 10px 10px;
  box-sizing: border-box;
  background-color: var(--panel-background-color);
  outline: 0 none;
  font-size: 16px;
  line-height: 22px;
  color: var(--textarea-text-color);
  border-radius: 0 0 3px 3px;
  font-variant-ligatures: no-common-ligatures;
  white-space: pre-wrap;
  word-break: break-word;
  word-wrap: break-word;
}
.vditor-sv[contenteditable="false"] {
  opacity: 0.3;
  cursor: not-allowed;
}
.vditor-sv:empty::before {
  content: attr(placeholder);
  color: var(--second-color);
}
.vditor-sv:focus {
  background-color: var(--textarea-background-color);
}
.vditor-sv:after {
  content: "";
  height: var(--editor-bottom);
  display: block;
}
.vditor-sv span[data-type="newline"] + span[data-type="text"]:empty {
  display: inherit;
}
.vditor-sv .sup {
  vertical-align: super;
  font-size: smaller;
}
.vditor-sv .strong {
  font-weight: bold;
}
.vditor-sv .em {
  font-style: italic;
}
.vditor-sv .s {
  text-decoration: line-through;
}
.vditor-sv .mark:not(.vditor-sv__marker) {
  background-color: yellow;
  color: black;
}
.vditor-sv .h1 {
  font-size: 1.75em;
  line-height: 44px;
}
.vditor-sv .h2 {
  font-size: 1.55em;
  line-height: 38px;
}
.vditor-sv .h3 {
  font-size: 1.38em;
  line-height: 27px;
}
.vditor-sv .h4 {
  font-size: 1.25em;
  line-height: 25px;
}
.vditor-sv .h5 {
  font-size: 1.13em;
}
.vditor-sv .h6 {
  font-size: 1em;
}
.vditor-sv__marker {
  color: var(--second-color);
}
.vditor-sv__marker--heading {
  color: var(--ir-heading-color);
}
.vditor-sv__marker--bi {
  color: var(--ir-bi-color);
}
.vditor-sv__marker--link {
  color: var(--ir-link-color);
}
.vditor-sv__marker--title {
  color: var(--ir-title-color);
}
.vditor-sv__marker--bracket {
  color: var(--ir-bracket-color);
}
.vditor-sv__marker--paren {
  color: var(--ir-paren-color);
}
.vditor-sv__marker--info {
  color: var(--ir-heading-color);
}
.vditor-sv__marker--strong {
  font-weight: bold;
}
.user__site {
  float: left;
  margin-left: 10px;
}
.user__site svg {
  height: 20px;
  width: 20px;
  fill: currentColor;
}
/* start reset */
html {
  height: 100%;
  max-height: 100%;
  font-size: 62.5%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
body {
  height: 100%;
  max-height: 100%;
  font-family: "Merriweather", "Microsoft Yahei", 'Helvetica';
  letter-spacing: 0.01rem;
  font-size: 1.8rem;
  line-height: 1.75em;
  color: #3A4145;
  -webkit-font-feature-settings: 'kern' 1;
  -moz-font-feature-settings: 'kern' 1;
  -o-font-feature-settings: 'kern' 1;
  text-rendering: geometricPrecision;
  margin: 0;
}
::-moz-selection {
  background: #D6EDFF;
}
::selection {
  background: #D6EDFF;
}
a {
  color: #4A4A4A;
  transition: color 0.3s ease;
}
a:hover {
  color: #111;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  -webkit-font-feature-settings: 'dlig' 1, 'liga' 1, 'lnum' 1, 'kern' 1;
  -moz-font-feature-settings: 'dlig' 1, 'liga' 1, 'lnum' 1, 'kern' 1;
  -o-font-feature-settings: 'dlig' 1, 'liga' 1, 'lnum' 1, 'kern' 1;
  color: #2E2E2E;
  line-height: 1.15em;
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  text-rendering: geometricPrecision;
}
h1 {
  font-size: 5rem;
}
h2 {
  font-size: 3.6rem;
}
h3 {
  font-size: 3rem;
}
h4 {
  font-size: 2.5rem;
}
h5 {
  font-size: 2rem;
}
h6 {
  font-size: 2rem;
}
img {
  max-width: 100%;
  height: auto;
}
p,
ul,
ol,
dl {
  -webkit-font-feature-settings: 'liga' 1, 'onum' 1, 'kern' 1;
  -moz-font-feature-settings: 'liga' 1, 'onum' 1, 'kern' 1;
  -o-font-feature-settings: 'liga' 1, 'onum' 1, 'kern' 1;
  margin: 0 0 1.75em 0;
  text-rendering: geometricPrecision;
}
ol,
ul {
  padding-left: 3rem;
}
ol ol,
ul ul,
ul ol,
ol ul {
  padding-left: 2em;
  margin-bottom: 0;
}
dl dt {
  float: left;
  width: 180px;
  overflow: hidden;
  clear: left;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
  margin-bottom: 1em;
}
dl dd {
  margin-left: 200px;
  margin-bottom: 1em;
}
li li {
  margin: 0;
}
hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: #EFEFEF 1px solid;
  margin: 3.2em 0;
  padding: 0;
}
blockquote {
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 1.75em 0 1.75em 0;
  padding: 0 0 0 1.75em;
  border-left: #4A4A4A 0.4em solid;
}
blockquote p {
  margin: 0.8em 0;
  font-style: italic;
}
blockquote small {
  display: inline-block;
  margin: 0.8em 0 0.8em 1.5em;
  font-size: 0.9em;
  color: #CCC;
}
blockquote small:before {
  content: "\2014 \00A0";
}
blockquote cite {
  font-weight: 700;
}
blockquote cite a {
  font-weight: normal;
}
mark {
  background-color: #fdffb6;
}
code,
tt {
  padding: 1px 3px;
  font-family: Inconsolata, monospace, "Microsoft Yahei", 'Helvetica';
  font-size: 0.85em;
  white-space: pre-wrap;
  border: #E3EDF3 1px solid;
  background: #F7FAFB;
  border-radius: 2px;
}
pre code,
pre tt {
  font-size: inherit;
  white-space: pre-wrap;
  background: transparent;
  border: none;
  padding: 0;
}
/* end reset */
/* start function */
.fn-clear:before,
.fn-clear:after {
  display: table;
  content: "";
}
.fn-clear:after {
  clear: both;
}
.fn-left {
  float: left;
}
.fn-right {
  float: right;
}
.fn-none {
  display: none;
}
.fn-vertical {
  display: table-cell;
  vertical-align: middle;
}
.fn-wrap {
  width: 80%;
  max-width: 768px;
  margin: 0 auto;
}
@-webkit-keyframes fade-in-down {
  0% {
    opacity: 0;
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}
@keyframes fade-in-down {
  0% {
    opacity: 0;
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}
@-webkit-keyframes bounce {
  0%,
  10%,
  25%,
  40%,
  50% {
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  30% {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
  }
}
@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  60% {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
  }
}
@-webkit-keyframes upbounce {
  0%,
  10%,
  25%,
  40%,
  50% {
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  30% {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
  }
}
@keyframes upbounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
  }
  60% {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
  }
}
/* end function */
/* start common */
@font-face {
  font-family: 'icomoon';
  src: url('fonts/icomoon.eot?hvf32e');
  src: url('fonts/icomoon.eot?hvf32e#iefix') format('embedded-opentype'), url('fonts/icomoon.ttf?hvf32e') format('truetype'), url('fonts/icomoon.woff?hvf32e') format('woff'), url('fonts/icomoon.svg?hvf32e#icomoon') format('svg');
  font-weight: normal;
  font-style: normal;
}
[class^="icon-"],
[class*=" icon-"] {
  /* use !important to prevent issues with browser extensions that change fonts */
  font-size: 2rem;
  font-family: 'icomoon' !important;
  speak: none;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  /* Better Font Rendering =========== */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.icon-register:before {
  content: "\e600";
}
.icon-logout:before {
  content: "\e601";
}
.icon-setting:before {
  content: "\e602";
}
.icon-gotop:before {
  content: "\e60a";
}
.icon-twitter:before {
  content: "\e60b";
}
.icon-login:before {
  content: "\e611";
}
.icon-arrow-left:before {
  content: "\f605";
}
.icon-menu:before {
  line-height: 38px;
  content: "\f609";
  font-size: 20px;
}
.icon-wechat:before {
  content: "\e903";
}
.icon-sitemap:before {
  content: "\e900";
}
.icon-list:before {
  content: "\e901";
}
.avatar {
  border-radius: 100%;
  float: left;
  height: 24px;
  margin-right: 9px;
  width: 24px;
}
.avatar-warp {
  width: 10%;
  padding-right: 10px;
  box-sizing: border-box;
}
.avatar-48 {
  box-shadow: 0 0 2px #ddd;
  height: auto;
  width: 48px;
  margin-right: 10px;
  border-radius: 24px;
}
.form {
  width: 100%;
  margin-top: 50px;
}
.form input,
.form textarea,
.form button {
  border: 1px solid #CCCCCC;
  background-color: #FAFAFA;
  border-radius: 3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075) inset;
  padding: 7px 8px;
  width: 100%;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  font-family: "Microsoft Yahei", 'Helvetica';
  outline: none;
}
.form button {
  width: auto;
  vertical-align: bottom;
}
.form input:focus,
.form textarea:focus {
  background-color: #FFF;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075) inset, 0 0 5px rgba(81, 167, 232, 0.5);
  border: 1px solid #51A7E8;
}
.error-msg {
  font-size: 1.5rem;
  color: #9EABB3;
}
.cmtFromSym {
  font-size: 1rem;
  color: #9EABB3;
}
/* end common */
/* start framework */
.main-header {
  position: relative;
  display: table;
  width: 100%;
  height: 100vh;
  margin-bottom: 5rem;
  text-align: center;
  background: #222 no-repeat center center;
  background-size: cover;
  overflow: hidden;
  background-image: url('../images/header-bg.jpg');
  min-height: 50vh;
}
.site-wrapper {
  position: relative;
  z-index: 10;
  min-height: 100%;
  background: #fff;
  -webkit-transition: -webkit-transform 0.5s ease;
  transition: transform 0.5s ease;
}
.nav-opened .site-wrapper {
  overflow-x: hidden;
  margin-right: 240px;
  transition: margin 0.3s ease;
}
/* end framework */
/* start header */
.page-title a {
  -webkit-animation: fade-in-down 0.6s;
  animation: fade-in-down 0.6s;
  -webkit-animation-delay: 0.2s;
  animation-delay: 0.2s;
  margin: 10px 0 10px 0;
  font-size: 5rem;
  letter-spacing: -1px;
  font-weight: 700;
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  color: #fff;
  text-shadow: 0px 0px 3px rgba(0, 0, 0, 0.9);
  text-decoration: none;
}
.page-description,
.page-description a {
  -webkit-animation: fade-in-down 0.9s;
  animation: fade-in-down 0.9s;
  -webkit-animation-delay: 0.1s;
  animation-delay: 0.1s;
  margin: 0;
  font-size: 2rem;
  line-height: 1.5em;
  font-weight: 400;
  letter-spacing: 0.01rem;
  color: rgba(255, 255, 255, 0.8);
}
.scroll-down {
  display: block;
  position: absolute;
  z-index: 100;
  bottom: 45px;
  left: 50%;
  margin-left: -16px;
  width: 34px;
  height: 34px;
  font-size: 34px;
  text-align: center;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  -webkit-animation: bounce 4s 2s infinite;
  animation: bounce 4s 2s infinite;
}
.scroll-down:hover {
  color: #fff;
  -webkit-animation: none;
  animation: none;
}
.menu-button {
  position: fixed;
  box-sizing: border-box;
  display: inline-block;
  float: right;
  height: 38px;
  padding: 0 15px;
  opacity: 1;
  font-size: 12px;
  text-transform: uppercase;
  line-height: 46px;
  border-radius: 3px;
  transition: all 0.5s ease;
  right: 20px;
  top: 40px;
  text-decoration: none;
  font-family: 'Open Sans', "Microsoft Yahei", 'Helvetica';
  z-index: 30;
  overflow: hidden;
  background-color: #111;
  border: 1px solid #111;
  color: #fff;
  cursor: pointer;
}
.menu-button:hover {
  background: #fff;
}
.menu-button:focus {
  outline: 0;
}
.nav-closed .menu-button:hover {
  color: #222;
}
.nav-opened .menu-button {
  padding: 0 12px;
  background: #111;
  border-color: #111;
  color: #fff;
  -webkit-transform: translate3D(50px, 0, 0);
  -ms-transform: translate3D(50px, 0, 0);
  transform: translate3D(50px, 0, 0);
  transition: all 0.3s ease;
  right: 287px;
  z-index: 10;
  width: 46px;
  border-radius: 3px 0 0 3px;
}
.menu-button .word {
  float: right;
  margin: -4px 0 0 10px;
}
.nav {
  position: fixed;
  display: flex;
  flex-direction: column;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  width: 220px;
  padding: 10px 10px 0 10px;
  opacity: 0;
  background: #111;
  margin-bottom: 0;
  text-align: left;
  overflow-y: auto;
  color: #FFF;
  -webkit-transition: -webkit-transform 0.5s ease, opacity 0.3s ease 0.7s;
  transition: transform 0.5s ease, opacity 0.3s ease 0.7s;
  overflow-x: hidden;
}
.nav::-webkit-scrollbar {
  display: none;
}
.nav ul {
  flex: 1;
  margin: 0;
  padding: 0px 0 5%;
  list-style: none;
  counter-reset: item;
}
.nav li {
  height: 30px;
  line-height: 1.4rem;
}
.nav li:before {
  display: block;
  float: right;
  padding-right: 4%;
  padding-left: 5px;
  text-align: right;
  font-size: 1.2rem;
  vertical-align: bottom;
  color: #B8B8B8;
  content: counter(item, lower-roman);
  counter-increment: item;
  line-height: 2.5rem;
}
.nav a {
  color: #989898;
  text-decoration: none;
  line-height: 1.4;
  font-size: 1.4rem;
}
.nav a:hover,
.nav a.current {
  color: #FFF;
}
.nav li a {
  display: flex;
  padding: 0.6rem 4%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.nav li a:after {
  display: inline-block;
  content: " .......................................................";
  color: rgba(255, 255, 255, 0.2);
  margin-left: 5px;
}
.nav .count {
  font-size: 1rem;
  word-wrap: normal;
  word-break: break-all;
  white-space: nowrap;
}
.nav .page-icon {
  float: left;
  height: 14px;
  width: 14px;
  margin: 3px 4px 0 0;
}
body.nav-closed .nav {
  transform: translate3D(240px, 0, 0);
}
body.nav-opened .nav {
  opacity: 1;
  -webkit-transition: -webkit-transform 0.3s ease, opacity 0s ease 0s;
  transition: transform 0.3s ease, opacity 0s ease 0s;
  -webkit-transform: translate3D(0, 0, 0);
  -ms-transform: translate3D(0, 0, 0);
  transform: translate3D(0, 0, 0);
}
/* end header */
/* start article */
article.post {
  position: relative;
  margin: 4rem auto;
  padding-bottom: 4rem;
  border-bottom: #EBF2F6 1px solid;
  word-wrap: break-word;
  width: 80%;
}
.post-content--article {
  padding-bottom: 10px;
}
.post-content--article::-webkit-scrollbar {
  display: none;
}
article.post:after {
  display: block;
  content: "";
  width: 7px;
  height: 7px;
  border: #E7EEF2 1px solid;
  position: absolute;
  bottom: -5px;
  left: 50%;
  margin-left: -5px;
  background: #FFF;
  border-radius: 100%;
  box-shadow: #FFF 0 0 0 5px;
}
.post-title a {
  text-decoration: none;
}
.post-tip {
  display: inline-block;
  text-transform: uppercase;
  font-size: 1.3rem;
  white-space: nowrap;
  color: #9EABB3;
  cursor: text;
}
.post-tip:hover {
  color: #9EABB3;
}
.post-tip:visited {
  color: #fff;
}
.post-excerpt p {
  margin: 0;
  font-size: 0.9em;
  line-height: 1.7em;
}
.post-meta {
  color: #9eabb3;
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  font-size: 1.5rem;
  line-height: 2.2rem;
  margin: 1.75rem 0 0 0;
}
.post-meta a {
  color: #9EABB3;
  text-decoration: none;
}
.post-meta a:hover {
  text-decoration: underline;
}
.post-meta time {
  border-left: 1px solid #d5dbde;
  display: inline-block;
  font-size: 1.3rem;
  margin-left: 8px;
  padding-left: 12px;
  text-transform: uppercase;
  white-space: nowrap;
}
.post-author {
  box-sizing: border-box;
  display: block;
  position: absolute;
  bottom: -57px;
  left: 50%;
  margin-left: -40px;
  width: 80px;
  height: 80px;
  border-radius: 100%;
  overflow: hidden;
  padding: 6px;
  background: #fff;
  z-index: 2;
  box-shadow: #E7EEF2 0 0 0 1px;
}
.post-author a {
  background-size: cover;
  background-position: center center;
  width: 68px;
  height: 68px;
  display: block;
  border-radius: 35px;
}
.icon-google:before {
  content: "\e603";
}
.icon-gotop:before {
  content: "\E60A";
  font-weight: bold;
}
.icon-gotop {
  cursor: pointer;
  position: fixed;
  bottom: 30px;
  right: 30px;
  -webkit-animation: upbounce 4s 2s infinite;
  animation: upbounce 4s 2s infinite;
  text-decoration: none;
  z-index: 12;
}
.icon-gotop:hover {
  color: #B8B8B8;
  -webkit-animation: none;
  animation: none;
}
.pagination {
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  font-size: 1.3rem;
  color: #9eabb3;
  text-align: center;
}
.pagination a {
  color: #9EABB3;
  transition: all 0.2s ease;
  padding: 0 15px;
  border: #bfc8cd 1px solid;
  text-decoration: none;
  display: inline-block;
  border-radius: 4px;
}
.pagination a:hover {
  border-color: #98a0a4;
  color: #889093;
}
ul.comments {
  padding: 0;
  list-style: none;
  margin-top: 100px;
  position: relative;
}
.comments li {
  padding: 10px;
  white-space: normal;
  word-wrap: break-word;
  position: relative;
  border-bottom: #EBF2F6 1px solid;
}
.comments li:hover {
  background-color: #F7F7F7;
}
.comments li img {
  vertical-align: sub;
}
.comments .comment-content {
  margin: 8px 0 0;
}
.comments li.comment-body-ref {
  position: absolute;
  z-index: 10;
  background-color: #EBF2F6;
  border: #d5dbde 1px solid;
  width: 86%;
  left: 69px;
}
.comments .post-meta {
  margin-top: 0;
}
#captcha,
#captchaReply {
  height: 27px;
  display: inline-block;
  vertical-align: inherit;
}
.read-next {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: stretch;
  -webkit-align-items: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
  margin-top: 10rem;
}
.read-next-story {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -webkit-flex-grow: 1;
  -ms-flex-positive: 1;
  flex-grow: 1;
  min-width: 50%;
  text-decoration: none;
  position: relative;
  text-align: center;
  color: #fff;
  background: #222 no-repeat center center;
  background-size: cover;
  overflow: hidden;
}
.read-next-story a {
  color: #BBB;
}
.read-next-story a:hover {
  color: #FFF;
}
.read-next-story:hover:before {
  background: rgba(0, 0, 0, 0.8);
  transition: all 0.2s ease;
}
.read-next-story:hover .post:before {
  color: #222;
  background: #fff;
  transition: all 0.2s ease;
}
.read-next-story:before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: all 0.5s ease;
}
.read-next-story .post {
  padding-top: 6rem;
  padding-bottom: 6rem;
  width: 80%;
  position: relative;
  margin: 0 auto;
}
.read-next-story .post:before {
  content: "Read This Next";
  padding: 4px 10px 5px;
  text-transform: uppercase;
  font-size: 1.1rem;
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 4px;
  transition: all 0.5s ease;
}
.read-next-story.prev .post:before {
  content: "Read This Before";
}
.read-next-story h2 {
  margin-top: 1rem;
  color: #fff;
}
.read-next-story p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}
.read-next + .site-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0;
}
.article__share {
  margin-top: 10px;
  display: inline-block;
  position: relative;
  float: right;
}
.article__share .item {
  cursor: pointer;
  display: inline-block;
  float: left;
  text-align: center;
  padding: 5px;
  box-sizing: border-box;
  color: #fdc200;
  transition: all 0.3s ease;
  opacity: 0.86;
}
.article__share .item svg {
  fill: currentColor;
  height: 16px;
  width: 16px;
  float: left;
}
.article__share .item[data-type="wechat"] {
  color: #3caf36;
}
.article__share .item[data-type="twitter"] {
  color: #18a3fa;
}
.article__share .item[data-type="weibo"] {
  color: #f93;
}
.article__share .item:hover {
  transform: rotate(360deg);
  color: #9EABB3;
}
.article__share .item__qr {
  position: absolute;
  top: 30px;
  left: 33px;
  height: 99px;
  width: 99px;
}
/* end article */
/* start tags */
#tags {
  padding: 0;
}
#tags li {
  list-style: none;
  float: left;
}
#tags li a {
  border: 1px solid #4A4A4A;
  display: inline-block;
  padding: 10px;
  margin: 1rem;
  border-radius: 5px;
  text-decoration: none;
}
#tags li a:hover {
  border: 1px solid #FFF;
  color: #FFF;
  background-color: #4A4A4A;
}
/* end tags */
/* start footer */
.site-footer {
  position: relative;
  margin: 8rem 0 0 0;
  padding: 1rem 15px;
  font-family: "Open Sans", "Microsoft Yahei", 'Helvetica';
  font-size: 1rem;
  line-height: 1.75em;
  color: #BBC7CC;
}
.site-footer a {
  color: #BBC7CC;
  font-weight: bold;
  text-decoration: none;
}
.site-footer a:hover {
  text-decoration: underline;
}
/* end footer */
@media only screen and (max-width: 900px) {
  blockquote {
    margin-left: 0;
  }
  .main-header {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    height: auto;
    min-height: 240px;
    height: 60vh;
    padding: 15% 0;
  }
  .scroll-down {
    display: none;
  }
  .page-title,
  .page-title a {
    font-size: 4rem;
    letter-spacing: -1px;
  }
  .page-description,
  .page-description a {
    font-size: 1.8rem;
    line-height: 1.5em;
  }
  .post {
    font-size: 0.95em;
  }
  hr {
    margin: 2.4em 0;
  }
  ol,
  ul {
    padding-left: 2em;
  }
  h1 {
    font-size: 4.5rem;
  }
  h2 {
    font-size: 3.6rem;
  }
  h3 {
    font-size: 3.1rem;
  }
  h4 {
    font-size: 2.5rem;
  }
  h5 {
    font-size: 2.2rem;
  }
  h6 {
    font-size: 1.8rem;
  }
  .read-next {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    margin-top: 4rem;
  }
}
@media only screen and (max-width: 500px) {
  .main-header {
    margin-bottom: 15px;
    height: 40vh;
  }
  .pagination {
    width: auto;
    margin: 2rem auto;
  }
  .post {
    width: auto;
    margin-top: 2rem;
    margin-bottom: 2rem;
    margin-left: 16px;
    margin-right: 16px;
    padding-bottom: 2rem;
    line-height: 1.65em;
  }
  hr {
    margin: 1.75em 0;
  }
  p,
  ul,
  ol,
  dl {
    font-size: 0.95em;
    margin: 0 0 2.5rem 0;
  }
  .page-title,
  .page-title a {
    font-size: 3rem;
  }
  .post-excerpt p {
    font-size: 0.85em;
  }
  .page-description,
  .page-description a {
    font-size: 1.6rem;
  }
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin: 0 0 0.3em 0;
  }
  h1 {
    font-size: 2.8rem;
    letter-spacing: -1px;
  }
  h2 {
    font-size: 2.4rem;
    letter-spacing: 0;
  }
  h3 {
    font-size: 2.1rem;
  }
  h4 {
    font-size: 1.9rem;
  }
  h5 {
    font-size: 1.8rem;
  }
  h6 {
    font-size: 1.8rem;
  }
  .post-content img {
    padding: 0;
    width: calc(100% + 32px);
    /* expand with to image + margins */
    min-width: 0;
    max-width: 112%;
    /* fallback when calc doesn't work */
  }
  .post-meta {
    font-size: 1.3rem;
    margin-top: 1rem;
  }
  .site-footer {
    margin-top: 3rem;
  }
  .read-next {
    margin-top: 2rem;
    margin-bottom: -37px;
  }
  .read-next .post {
    width: 100%;
  }
  .menu-button {
    border: 0;
    top: 0;
    right: 0;
  }
  .nav-opened .site-wrapper {
    margin-right: 0;
  }
  .nav {
    z-index: 11;
  }
  .nav-closed .menu-button:hover {
    color: #FFF;
    background-color: transparent;
  }
  .post-author {
    width: 40px;
    height: 40px;
    bottom: -37px;
    padding: 3px;
    margin-left: -20px;
  }
  .post-author a {
    width: 34px;
    height: 34px;
    display: block;
    border-radius: 17px;
  }
  .nav .count {
    line-height: 1.5rem;
  }
  #tags li a {
    padding: 0 5px;
  }
}