body {
  background-color: #f6f6f6;
}
.breadNav {
  height: 52px;
  line-height: 52px;
  color: #777777;
}
.breadNav li {
  margin-right: 10px;
}
.breadNav li:nth-child(2n) {
  line-height: 0;
  border-width: 4px;
  border-color: #777777;
  border-right-width: 0;
  border-style: dashed;
  border-left-style: solid;
  border-top-color: transparent;
  border-bottom-color: transparent;
  margin-top: 22px;
}
.playVideo {
  height: 605px;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 20px 10px -20px #4a585f;
  background-color: #fff;
}
.playVideo video {
  width: 1140px;
  height: 400px;
  border-radius: 20px;
  background-color: #434343;
}
.playVideo .questionVideo {
  border-radius: 20px;
  margin-top: 20px;
  position: relative;
}
.playVideo .questionVideo h2 {
  font-size: 20px;
  margin-bottom: 38px;
}
.playVideo .questionVideo p:nth-child(2) {
  margin-bottom: 20px;
}
.playVideo .questionVideo p span {
  margin-left: 38px;
}
.playVideo .questionVideo p:nth-child(2) span>a {
  color: #00a0e9;
}
.playVideo .questionVideo p:nth-child(2) span:nth-child(n+6)>a {
  color: #f6bf64;
}
.playVideo .questionVideo .btn {
  position: absolute;
  top: 50%;
  right: 52px;
  transform: translate(0, -50%);
}
.playVideo .questionVideo .btn a {
  display: block;
  padding: 10px;
  float: left;
  border-radius: 10px;
  color: #fff;
  background-color: #4dbd56;
}
.intro {
  height: 224px;
  border-radius: 20px;
  margin: 20px auto;
  padding: 30px;
  box-shadow: 0 20px 10px -20px #4a585f;
  background-color: #fff;
}
.intro h2 {
  font-size: 16px;
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}
.intro p {
  text-indent: 2em;
  font-size: 16px;
  color: #777777;
  line-height: 1.5;
}
.catalog {
  box-shadow: 0 20px 10px -20px #4a585f;
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 30px;
  background-color: #fff;
}
.catalog h2 {
  font-size: 16px;
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}
.catalog li {
  height: 55px;
  line-height: 55px;
}
.catalog li .left {
  position: relative;
}
.catalog li .left .round {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: block;
  background-color: #00a0e9;
  position: absolute;
  top: 19px;
  left: 4px;
}
.catalog li .left span:nth-child(1) {
  width: 20px;
  height: 20px;
  margin-top: 15px;
  margin-right: 33px;
  border: 1px solid #cecece;
  border-radius: 50%;
  background-color: #fff;
  display: block;
  cursor: pointer;
}
.catalog li .left span:nth-child(2) {
  width: 65px;
  height: 25px;
  text-align: center;
  line-height: 25px;
  margin-top: 15px;
  margin-right: 30px;
  border-radius: 6px;
  color: #fff;
  background-color: #00a0e9;
}
.catalog li .right span:nth-child(2) {
  color: #00b7ee;
  cursor: pointer;
  margin-left: 10px;
}
.fl>a.crumbs-a{
  color: #524d4d;
}