body {
  margin: 0 auto;
  padding: 0;
}

.left {
  float: left;
}

.right {
  float: right;
}

.row {
  width: 1200px;
  margin: 0 auto;
}

.banner {
  width: 100%;
  background: url(../img/banner.png) no-repeat center;
  height: 600px;
  background-size: cover;
}

.banner img {
  width: 100%;
}

.nav {
  height: 84px;
  background: rgba(0, 0, 0, 0.33);
  padding-top: 20px;
}

.imgs {
  width: 63px;
  height: 63px;
}

.imgs img {
  width: 100%;
}

.text {
  font-size: 20px;
  font-family: PingFang-SC-Medium;
  font-weight: bold;
  color: rgba(249, 249, 249, 1);
}

.fenge {
  width: 580px;
  margin: 0 auto;
  height: 10px;
  text-align: center;
  margin-top: 54px;
  margin-bottom: 54px;
}

.jz {
  width: 100px;
}

.han {
  width: 100%;
  height: 232px;
  background: rgba(255, 255, 255, 1);
}

.swiper {
  width: 1200px;
  margin: 0 auto;
}

.list {
  width: 220px;
  height: 253px;
  background: rgba(255, 255, 255, 1);
  box-shadow: 8px 9px 38px 0px rgba(230, 230, 230, 1);
  border-radius: 30px;
}

.sent {
  padding-top: 30px;
  background: #f4f4f4;
  height: 450px;
}

.list img {
  display: block;
  margin: 0 auto;
  padding-top: 30px;
  width: 121px;
  height: 121px;
  border-radius: 45%;
}

.list {
  text-align: center;
  display: block;
  margin: 0 auto;
}

.name {
  font-size: 20px;
  font-family: PingFang-SC-Bold;
  font-weight: bold;
  color: rgba(75, 75, 75, 1);
  padding: 10px 0;
}

.namedesc {
  font-size: 16px;
  font-family: PingFang-SC-Medium;
  font-weight: 500;
  color: rgba(158, 158, 158, 1);
}

.mo {
  width: 1300px;
  margin: 0 auto;
}

.center {
  width: 1300px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.teach {
  width: 1200px;
  margin: 0 auto;
  height: 520px;
}

.li {
  float: left;
  margin: 10px;
  position: relative;
}

.flist {
  padding-top: 40px;
}

.footer {
  width: 100%;
  height: 251px;
  background: rgba(28, 28, 28, 1);
  font-size: 20px;
  font-family: PingFang-SC-Medium;
  font-weight: 500;
  color: rgba(128, 128, 128, 1);
}

.ol {
  padding-bottom: 30px;
}

.pa {
  margin-left: 90px;
  padding-top: 25px;
}

.rows {
  width: 1100px;
  margin: 0 auto;
}

.pd img {
  display: block;
  margin-bottom: 20px;
}

.pd {
  margin-left: 50px;
  text-align: center;
}

.prev {
  cursor: pointer;
}

.next {
  cursor: pointer;
}

.shio {
  position: absolute;
  width: 100%;
  height: 32px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
  bottom: 0;
  font-size: 15px;
  font-family: PingFang-SC-Medium;
  font-weight: 500;
  color: rgba(255, 255, 255, 1);
  line-height: 32px;
  text-align: center;
}