.hot-box {
  overflow: hidden;
  margin-bottom: 60px;
}
.hot-box .hot-swiper {
  border-radius: 10px;
}
.hot-box .hot-swiper .swiper-slide .swiper-a {
  display: block;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}
.hot-box .hot-swiper .swiper-slide .swiper-a::after {
  display: block;
  content: "";
  padding-top: 37.5%;
}

.teacher-dl dd {
  margin-bottom: 30px;
}
.teacher-dl dd .list-a {
  padding: 15px;
  overflow: hidden;
  border-radius: 10px;
  position: relative;
  background: #fff url(../images/teacher-bg.png) no-repeat right bottom;
  background-size: auto;
}
.teacher-dl dd .list-a .img-box {
  width: 200px;
  border: 5px solid #eaeefa;
  border-radius: 10px;
  margin-right: 20px;
}
.teacher-dl dd .list-a .img-box::after {
  padding-top: 142.5%;
}
.teacher-dl dd .list-a .cont .sub-name {
  font-size: 16px;
  color: #555555;
  position: relative;
  padding: 20px 0px;
  margin-bottom: 20px;
}
.teacher-dl dd .list-a .cont .sub-name::after {
  display: block;
  content: "";
  width: 30px;
  height: 2px;
  background: #297d79;
  position: absolute;
  left: 0px;
  bottom: 0px;
}
.teacher-dl dd .list-a::after, .teacher-dl dd .list-a::before {
  display: block;
  content: "";
  height: 5px;
  position: absolute;
  left: 50%;
  bottom: 0px;
  transform: translateX(-50%);
}
.teacher-dl dd .list-a::after {
  background: rgb(41, 125, 121);
  width: 0px;
  z-index: 2;
  transition: all 0.4s ease-out;
}
.teacher-dl dd .list-a::before {
  background: rgba(41, 125, 121, 0.2);
  width: 100%;
  z-index: 1;
}
.teacher-dl dd .list-a:hover::after {
  width: 100%;
}

@media screen and (max-width: 768px) {
  .hot-box {
    margin-bottom: 30px;
  }
  .teacher-dl dd .list-a .img-box {
    width: 150px;
  }
  .teacher-dl dd .list-a .cont .sub-name {
    padding: 10px 0px;
    margin-bottom: 15px;
  }
  .teacher-dl dd .list-a .cont .text {
    font-size: 14px;
  }
}