.certifyWrap h2 {
  text-align: center;
  font-size: 40px;
  color: #000;
  font-weight: normal;
  margin-top: 25px;
}
.certifyWrap .desc {
  color: #333;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  width: 80%;
  margin: 0 auto;
}
.certifyNav .nav {
  margin-top: 40px;
  text-align: center;
}
.certifyNav .nav-btn {
  padding: 20px 40px;
  border-radius: 10px;
  background-color: #eee;
  color: #666;
  margin: 10px;
  cursor: pointer;
  display: inline-block;
  font-size: 20px
}
.certifyNav .nav-btn.active {
  background-color: #be2327;
  color: #fff;
  transition: all 0.3s
}
.certify {
  margin: 50px 0
}
.certifyDemo {
  margin: 40px 0
}
.certify  .swiper-slide-prev, .swiper-slide-next {
  cursor: pointer;
}
.certify .swiper-slide p {
  text-align: center;
}
.certify .swiper-button-prev, .certify .swiper-button-next {
  display: none;
}
.certify .swiper-slide img {
  cursor: pointer;
}