#loading {
  bottom: 0;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 9999;
  background-color: #f4f5f5;
  pointer-events: none;
}

.loader-inner {
  will-change: transform;
  width: 40px;
  height: 40px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -20px 0 0 -20px;
  background-color: #3742fa;
  border-radius: 50%;
  animation: scaleout 0.6s infinite ease-in-out forwards;
  text-indent: -99999px;
  z-index: 999991;
}

@keyframes scaleout {
  0% {
    transform: scale(0);
    opacity: 0;
  }

  40% {
    opacity: 1;
  }

  100% {
    transform: scale(1);
    opacity: 0;
  }
}

.profile-msg p:nth-child(3) {
  margin-top: 12px;
  font-size: 13px;
  color: #fff;
  text-shadow: 0 0 3px #151728;
}

#catalog ul li a:hover {
  background: rgba(80, 80, 80, .04);
  color: #807dd4;
}

h3.catalog-title:before {
  content: '📖';
  position: relative;
  display: block;
  right: 10px;
}

h3.catalog-title:after {
  font-weight: 900;
  transform: rotate(90deg);
  content: "\25B2";
  font-variant: normal;
  text-rendering: auto;
  display: flex;
  background: 0 0;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 15px;
  justify-content: center;
  align-items: center;
  transition: transform .2s ease, -webkit-transform .3s ease;
  font-family: iconfont !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
}

h3.catalog-title.is-active:after {
  transform: rotate(180deg);
}

/* markdown */
/* 定义列表 */
dl dt {
  font-size: 14px;
  font-weight: bold;
  font-style: italic;
}

dl dd {
  margin: 0 0 15px;
  padding: 0 15px;
}

/* 下标 */
sub {
  vertical-align: sub !important;
  font-size: smaller !important;
}

/* 上标 */
sup {
  font-size: .83em !important;
  vertical-align: super !important;
  line-height: 0 !important;
}