/** BootStrap 样式扩展 */
/* Bootstrap 图标库 实现文本对齐 */
.bi{
  position: relative;
  vertical-align: baseline;
  bottom: -0.125rem;
}

.text-indent {
  text-indent:2rem
}
.text-small {  
  font-size: .8rem;
}
.font-normal,
.font-normal em {
  font-style: normal;
}
.rounded-pill-changeable {
  border-radius: 50rem;
}
.square:after {
  content: '';
  margin-top: 100%;
  display: block;
}
.hero{
  background: url("https://bootstrapmade.com/demo/themes/BizLand/assets/img/hero-bg.jpg") top left;
  background-size: cover;
}
.hero:before {
  content: "";
  background: rgba(255, 255, 255, 0.6);
  position: absolute;
  bottom: 0;
  top: 0;
  left: 0;
  right: 0;
}
.jumbotron em{
  color:var(--danger);
  font-style: normal;
}
.jumbotron .jumbotron-title > span {
  display: block!important;
}
@media (min-width: 576px)
{
  .jumbotron .jumbotron-title span {
    display: inline!important;
}
}


@media (min-width: var(--breakpoint-lg)){
  .hero {
    background-attachment: fixed;
}
}


.card-list > li:before {
  font-family: "Font Awesome 5 Free";
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  line-height: 1;
  font-weight: 900;
  margin-left: -1.5rem;
  margin-right: .5rem;
  content: "\f00c";
  float: left;
  color: var(--danger);
  padding-top: .25rem;
}

#research-dynamics a[aria-expanded="true"] {
    color: var(--danger)!important;
}
#research-dynamics a[aria-expanded="true"] .bi {
    transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
}