.head {
  background-color: #fff;
}
.banner {
  width: 100%;
  min-width: 1200px;
  height: 457px;
  margin-bottom: 66px;
}
.banner img {
  width: 100%;
  height: 457px;
}
.main {
  width: 1200px;
  min-width: 1200px;
  margin: 0 auto;
}
.main .active {
  display: block !important;
}
.main .title {
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 32px;
  color: #262626;
  margin-bottom: 32px;
}
.main .title .left,
.main .title .right {
  width: 49px;
  height: 42px;
}
.main .title span {
  margin: 0 20px;
}
.main .tabs {
  width: 100%;
  height: 60px;
  font-size: 20px;
  color: #5A5A5A;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.main .tabs .left {
  display: flex;
  height: 60px;
  line-height: 60px;
}
.main .tabs .left li {
  margin-right: 46px;
  cursor: pointer;
}
.main .tabs .left .line {
  color: #01997A;
  border-bottom: 3px solid #01997A;
}
.main .tabs .right {
  color: #01997A;
  cursor: pointer;
}
.main .personBox {
  display: none;
  position: relative;
  padding-bottom: 30px;
}
.main .personBox .expand-btn {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 20px;
  color: #01997A;
  cursor: pointer;
}
.main .personBox .expand-btn > span {
  margin-right: 4px;
}
.main .personBox .collapse-btn {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 20px;
  color: #01997A;
  cursor: pointer;
}
.main .personBox .collapse-btn > span {
  margin-right: 4px;
}
.main .personBox .collapse-btn > img {
  transform: rotateX(180deg);
}
.main .personList {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  margin-top: 48px;
  max-height: 968px;
  overflow: hidden;
}
.main .personList.expand {
  max-height: fit-content;
}
.main .personList li {
  width: 280px;
  height: 444px;
  background: #FFFFFF;
  border-radius: 14px;
  border: 1px solid #C3C3C3;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 24px;
  margin-bottom: 41px;
  cursor: pointer;
  overflow: hidden;
}
.main .personList li:nth-child(4n+4) {
  margin-right: 0;
}
.main .personList li img {
  width: 254px;
  height: 287px;
  margin: 15px 0;
  border-radius: 14px;
}
.main .personList li .teacher {
  font-weight: bold;
  font-size: 18px;
  color: #4C5370;
}
.main .personList li .center {
  color: #8C8C8C;
  margin-top: 10px;
  padding: 0 10px;
  display: block;
  width: 100%;
  box-sizing: border-box;
  font-size: 17px;
  line-height: 28px;
  height: 90px;
  overflow: hidden;
  text-align: center;
}
@keyframes identifier {
  100% {
    transform: scale(1);
    text-shadow: 0 10px 10px #8C8C8C;
  }
}
.study {
  background: #FBFCFF;
  padding-bottom: 75px;
  padding-top: 56px;
  box-sizing: border-box;
}
.study .title {
  width: 1200px;
  min-width: 1200px;
  margin: 0 auto;
  margin-bottom: 56px;
  height: 60px;
  font-weight: bold;
  font-size: 32px;
  color: #262626;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.study .title .right {
  width: 147px;
  height: 42px;
  line-height: 42px;
  text-align: center;
  font-weight: bold;
  font-size: 18px;
  color: #FFFFFF;
  background: #01997A;
  border-radius: 12px;
  cursor: pointer;
}
.study .title .center {
  margin: 0 auto;
  margin-left: 50%;
  transform: translateX(-50%);
}
.study .title .center .img1,
.study .title .center .img2 {
  width: 49px;
  height: 42px;
}
.study .content {
  width: 1200px;
  background: #FFFFFF;
  margin: 0 auto;
  padding: 20px 50px 10px;
  box-sizing: border-box;
  border-radius: 30px;
}
.study .content .second .el-menu--horizontal.el-menu,
.study .content .third .el-menu--horizontal.el-menu {
  border-bottom: none;
}
.study .content .second .el-menu--horizontal > .el-menu-item.is-active,
.study .content .third .el-menu--horizontal > .el-menu-item.is-active {
  font-weight: bold;
  color: #5A5A5A !important;
  background-color: transparent;
  border-bottom: 2px solid #01997A !important;
}
.study .content .second .el-menu--horizontal > .el-menu-item,
.study .content .third .el-menu--horizontal > .el-menu-item {
  height: 42px;
  padding: 0;
  line-height: 1;
  font-weight: bold;
  font-size: 18px;
  color: #5A5A5A;
  margin-right: 33px;
}
.study .content .second .el-menu--horizontal > .el-menu-item:hover,
.study .content .third .el-menu--horizontal > .el-menu-item:hover {
  background-color: transparent;
}
.study .content .third {
  height: 42px;
  margin-top: 10px;
  border-bottom: 1px solid #E5E5E5;
}
.study .content .third .el-menu {
  height: 42px;
}
.study .content .third .el-menu--horizontal > .el-menu-item {
  font-weight: 400;
  font-size: 16px;
  color: #5A5A5A;
  margin-right: 44px;
}
.study .content .third .el-menu--horizontal > .el-menu-item.is-active {
  font-weight: 400;
  color: #01997A !important;
  background-color: transparent;
  border-bottom: 2px solid #01997A !important;
}
.study .box {
  width: 100%;
  padding-bottom: 50px;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
}
.study .box li {
  width: 242px;
  height: 241px;
  margin-right: 42px;
  margin-top: 54px;
  border-radius: 10px;
  box-shadow: 0 1px 2px 1px rgba(0, 0, 0, 0.16);
}
.study .box li:hover {
  transform: scale(1);
  box-shadow: 0 0 5px 5px rgba(0, 0, 0, 0.16);
}
.study .box li:nth-child(4n+4) {
  margin-right: 0;
}
.study .box li .bg {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 242px;
  height: 82px;
  font-weight: bold;
  font-size: 24px;
  color: #1B506B;
  padding: 0 17px;
  box-sizing: border-box;
  background: url(../images/tbg1.png) no-repeat 100%;
}
.study .box li .bg2 {
  color: #1E5A4E;
  background: url(../images/tbg2.png) no-repeat 100%;
}
.study .box li .bg3 {
  color: #8B5142;
  background: url(../images/tbg3.png) no-repeat 100%;
}
.study .box li .bg4 {
  color: #855F14;
  background: url(../images/tbg4.png) no-repeat 100%;
}
.study .box li .bg5 {
  color: #5F5A8E;
  background: url(../images/tbg5.png) no-repeat 100%;
}
.study .box li .bottom-box {
  margin-left: 10px;
  margin-right: 24px;
}
.study .box li .bottom-box .des {
  font-weight: bold;
  font-size: 16px;
  color: #5A5A5A;
  margin-top: 9px;
  margin-bottom: 18px;
}
.study .box li .bottom-box .num {
  font-weight: 400;
  font-size: 14px;
  color: #989898;
}
.study .box li .bottom-box .teacher {
  font-weight: 400;
  font-size: 12px;
  color: #8C8C8C;
  display: flex;
  align-items: center;
  margin-top: 8px;
}
.study .box li .bottom-box .teacher img {
  width: 42px;
  height: 42px;
  margin-right: 8px;
  border-radius: 50%;
}
.foot {
  margin-top: 0;
}
.el-dialog .dialog-footer .el-button {
  width: 119px;
  height: 42px;
  font-size: 20px;
  color: #5A5A5A;
  border: none;
  border-radius: 363px 363px 363px 363px;
}
.el-dialog .dialog-footer .el-button:first-child {
  background: #F6F7FB;
  margin-right: 47px;
  --el-button-hover-text-color: #5A5A5A;
}
.el-dialog .dialog-footer .el-button:last-child {
  background: #01997A;
  color: #fff;
}
.slide-up {
  animation: slide-up 0.5s cubic-bezier(0.4, 1.02, 0.41, 1.36) both;
}
@keyframes slide-up {
  0% {
    transform: translateY(100px);
  }
  100% {
    transform: translateY(0);
  }
}