.index-headbg {
  position: relative;
  width: 100%;
  height: 400px;
  background: url(../img/顶部.png);
  background-size: 100% 100%;
}
.index-head {
  position: absolute;
  right: 60px;
  top: 21px;
}
.index-head-item:nth-child(1) {
  margin-right: 58px;
}
.index-head-item {
  float: left;
}
.index-head-item .head-icon {
  width: 22px;
  height: 22px;
  background: url('../img/联系icon.png') no-repeat;
  background-size: 100% 100%;
  float: left;
}
.index-head-item .head-icon1 {
  width: 22px;
  height: 22px;
  background: url('../img/邮箱_看图王.png') no-repeat;
  background-size: 100% 100%;
  float: left;
}
.index-head-item-size {
  margin-left: 9px;
  float: left;
  line-height: 22px;
  font-size: 12px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-theme {
  padding-top: 80px;
  text-align: center;
}
.index-theme-name {
  font-size: 36px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}
.index-theme-txt {
  padding-top: 19px;
  font-size: 22px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-form {
  margin: auto;
  width: 98%;
  position: relative;
  top: -150px;
  height: 420px;
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 0 10px 0px rgba(0, 0, 0, 0.1);
}
.index-form-img {
  padding-left: 10%;
  float: left;
  width: 50%;
  height: 420px;
  position: relative;
}
.index-form-img img {
  position: absolute;
  top: 50%;
  left: 30%;
  transform: translateY(-50%);
  display: block;
  width: 70%;
  height: 70%;
}
.index-form-box {
  float: left;
  width: 50%;
  padding-top: 100px;
}
.index-form-box-img {
  display: none;
}
.index-form-box input {
  display: block;
  margin: auto;
  width: 70%;
  height: 45px;
  background: #FFFFFF;
  border: 1px solid #BABABA;
  padding-left: 20px;
  margin-bottom: 20px;
  border-radius: 5px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #343434;
}
.index-form-box input::-webkit-input-placeholder {
  color: #9A9A9A;
}
.index-form-box input::-moz-placeholder {
  /* Mozilla Firefox 19+ */
  color: #9A9A9A;
}
.index-form-box input:-moz-placeholder {
  /* Mozilla Firefox 4 to 18 */
  color: #9A9A9A;
}
.index-form-box input:-ms-input-placeholder {
  /* Internet Explorer 10-11 */
  color: #9A9A9A;
}
.index-form-box .signUp {
  margin: auto;
  width: 70%;
  height: 45px;
  background: linear-gradient(0deg, #DB2014 0%, #FF473B 100%);
  border-radius: 45px;
  text-align: center;
  line-height: 40px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-introduction {
  position: relative;
  top: -40px;
}
.index-introduction-list {
  float: left;
  width: 100%;
}
.index-introduction-list-item {
  position: relative;
  float: left;
  margin: 0 1%;
  width: 94%;
  height: 240px;
  text-align: center;
}
.index-introduction-list-item img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 20px;
}
.index-introduction-list-item:last-child {
  margin-right: 0;
}
.index-introduction-list .index-introduction-zindex {
  width: 90%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.index-introduction-list .index-introduction-zindex-icon {
  width: 40px;
  height: 50px;
  margin: auto;
  background: url(../img/学生icon.png);
  background-size: 100% 100%;
}
.index-introduction-list .index-introduction-zindex-icon1 {
  width: 40px;
  height: 50px;
  margin: auto;
  background: url(../img/在线教育icon.png);
  background-size: 100% 100%;
}
.index-introduction-list .index-introduction-zindex-icon2 {
  width: 40px;
  height: 50px;
  margin: auto;
  background: url(../img/专业师资icon.png);
  background-size: 100% 100%;
}
.index-introduction-list .index-introduction-zindex-size {
  margin-top: 18px;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}
.index-advantage {
  margin-top: 70px;
}
.index-advantage-name {
  text-align: center;
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #333333;
}
.index-advantage-list {
  margin-top: 20px;
}
.index-advantage-list-item:nth-child(3n) {
  margin-right: 0;
}
.index-advantage-list-item:nth-child(n - 3) {
  margin-top: 0.4rem;
}
.index-advantage-list-box {
  width: 90%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.index-advantage-list-box-icon {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/czlx.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-icon1 {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/timeicon.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-icon2 {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/zdicon.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-icon3 {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/fxicon.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-icon4 {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/zyicon.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-icon5 {
  margin: auto;
  width: 44px;
  height: 44px;
  background: url(../img/xxicon.png);
  background-size: 100% 100%;
}
.index-advantage-list-box-name {
  text-align: center;
  margin-top: 14px;
  margin-bottom: 9px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #333333;
}
.index-advantage-list-box-txt {
  text-align: center;
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
}
.index-advantage-list-item {
  position: relative;
  margin-right: 4%;
  width: 88%;
  height: 240px;
  background: #FFFFFF;
  box-shadow: 0 0 6px 0 rgba(0, 0, 0, 0.1);
  float: left;
  border-radius: 20px;
}
.index-advantage-list-item1:nth-child(3n) {
  margin-right: 0;
}
.index-advantage-list-item1 {
  position: relative;
  margin-right: 4%;
  width: 88%;
  height: 350px;
  background: #FFFFFF;
  box-shadow: 0 0 6px 0 rgba(0, 0, 0, 0.1);
  float: left;
}
.index-advantage-list-item1-box {
  width: 90%;
  position: absolute;
  left: 50%;
  top: 10%;
  transform: translateX(-50%);
}
.index-advantage-list-item1-box-img {
  margin: auto;
  width: 100px;
  height: 100px;
}
.index-advantage-list-item1-box-img img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
}
.index-advantage-list-item1-box-text {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
}
.index-advantage-list-item1-box-name {
  text-align: center;
  margin-top: 14px;
  margin-bottom: 9px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #333333;
}
.index-impression {
  margin-top: 70px;
}
.index-impression-name {
  text-align: center;
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #343434;
}
.index-impression-c {
  margin-top: 20px;
}
.index-impression-c .wrap {
  width: 100%;
  height: 800px;
}
.index-impression-c .slide {
  width: 80%;
  height: 800px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.index-impression-c .slide li {
  position: absolute;
}
.index-impression-c .slide li img {
  /*以后每一个li标签，都和父元素的大小是一样的*/
  width: 100%;
}
.index-impression-c .one {
  position: absolute;
}
.index-impression-c .two {
  position: absolute;
}
.index-impression-c .three {
  position: absolute;
}
.index-impression-c .arrow {
  position: relative;
  width: 100%;
  height: 100%;
  opacity: 0;
}
.index-impression-c .prev {
  width: 50px;
  height: 50px;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99;
}
.index-impression-c .next {
  width: 50px;
  height: 50px;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99;
}
.index-impression-c .right {
  width: 32%;
  height: 3.64583333rem;
  background: #939;
  position: absolute;
  top: 18px;
  right: 0;
  z-index: -120;
}
.index-impression-c img {
  width: 100%;
  height: 100%;
  border-radius: 20px;
}
.index-advertising {
  position: relative;
  width: 100%;
  height: 221px;
  background: url(../img/zbbaneer.png);
  background-size: 100% 100%;
  text-align: center;
}
.index-advertising-box {
  width: 80%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.index-advertising-name {
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}
.index-advertising-txt {
  margin-top: 19px;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-app {
  margin-top: 90px;
}
.index-app-name {
  text-align: center;
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #343434;
}
.index-app-box {
  width: 80%;
  margin: auto;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.index-app-c {
  width: 100%;
  margin-top: 40px;
  position: relative;
}
.index-app-c-box:last-child {
  margin-right: 0;
}
.index-app-c-box {
  float: left;
  width: 40%;
  height: 120px;
  margin-right: 20%;
  background: linear-gradient(0deg, #2496FF 0%, #68B7FF 100%);
  border-radius: 20px;
}
.index-app-c-box img {
  width: 100%;
  height: 100%;
  border-radius: 20px;
}
.index-footer {
  overflow: hidden;
  margin-top: 200px;
  position: relative;
  width: 100%;
  height: 294px;
  background: url('../img/footer.png');
  background-size: 100% 100%;
}
.index-footer-l {
  width: 50%;
  margin-top: 105px;
}
.index-footer-l .index-footer-l-r-name {
  font-size: 12px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}
.index-footer-l .index-footer-l-r-txt {
  font-size: 9px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-footer-l-t-icon {
  float: left;
  margin-right: 9px;
  width: 25px;
  height: 25px;
  background: url(../img/联系icon.png);
  background-size: 100% 100%;
}
.index-footer-l-b {
  margin-top: 44px;
}
.index-footer-l-b-icon {
  float: left;
  margin-right: 9px;
  width: 25px;
  height: 25px;
  background: url(../img/邮箱icon.png);
  background-size: 100% 100%;
}
.index-footer-r {
  width: 50%;
  position: absolute;
  top: 126px;
  right: 0;
}
.index-footer-r-txt {
  font-size: 12px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}
.index-footer-r-list {
  margin-top: 19px;
}
.index-footer-r-list img {
  margin-right: 10px;
  float: left;
  display: block;
  width: 41px;
  height: 41px;
}
.index-footer-txt {
  margin-top: 50px;
  text-align: center;
  font-size: 9px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}
.index-filex {
  position: fixed;
  top: 60%;
  right: 5px;
  width: 80px;
  height: 80px;
}
.index-filex img {
  width: 100%;
  height: 100%;
}
.tc {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 40px;
  padding: 0 20px;
  background: #000000;
  color: white;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
  border-radius: 10px;
}
@media (min-width: 1200px) and (max-width: 1500px) {
  .index-impression {
    margin-top: 70px;
  }
  .index-impression-name {
    font-size: 28px;
  }
  .index-impression-c {
    margin-top: 20px;
  }
  .index-impression-c .wrap {
    width: 100%;
    height: 740px;
  }
  .index-impression-c .slide {
    width: 98%;
    height: 740px;
  }
}
@media (min-width: 992px) and (max-width: 1200px) {
  .index-headbg {
    height: 350px;
  }
  .index-theme {
    padding-top: 70px;
  }
  .index-theme-name {
    font-size: 34px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-theme-txt {
    padding-top: 19px;
    font-size: 20px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
  }
  .index-form {
    margin: auto;
    width: 98%;
    position: relative;
    top: -110px;
    height: 360px;
  }
  .index-form-img {
    height: 340px;
  }
  .index-form-box {
    padding-top: 60px;
  }
  .index-form-box-img {
    display: none;
  }
  .index-form-box input {
    font-size: 14px;
    height: 40px;
  }
  .index-form-box .signUp {
    height: 40px;
    font-size: 14px;
  }
  .index-introduction-list-item {
    height: 175px;
  }
  .index-introduction-list .index-introduction-zindex-icon {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-icon1 {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-icon2 {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-size {
    margin-top: 8px;
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-advantage {
    margin-top: 60px;
  }
  .index-advantage-name {
    font-size: 28px;
  }
  .index-advantage-list-item:nth-child(n - 3) {
    margin-top: 0.2rem;
  }
  .index-advantage-list-box-icon {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon1 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon2 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon3 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon4 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon5 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-name {
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 14px;
  }
  .index-advantage-list-box-txt {
    text-align: center;
    font-size: 12px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
  }
  .index-advantage-list-item {
    width: 88%;
    height: 200px;
  }
  .index-advantage-list-item1:nth-child(3n) {
    margin-right: 0;
  }
  .index-advantage-list-item1 {
    width: 88%;
    height: 330px;
  }
  .index-advantage-list-item1-box-img {
    margin: auto;
    width: 80px;
    height: 80px;
  }
  .index-advantage-list-item1-box-text {
    font-size: 12px;
  }
  .index-advantage-list-item1-box-name {
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 14px;
  }
  .index-impression {
    margin-top: 70px;
  }
  .index-impression-name {
    font-size: 28px;
  }
  .index-impression-c {
    margin-top: 20px;
  }
  .index-impression-c .wrap {
    width: 100%;
    height: 600px;
  }
  .index-impression-c .slide {
    width: 98%;
    height: 600px;
  }
  .index-advertising {
    height: 200px;
  }
  .index-advertising-name {
    font-size: 28px;
  }
  .index-advertising-txt {
    margin-top: 19px;
  }
  .index-app {
    margin-top: 70px;
  }
  .index-app-name {
    font-size: 28px;
  }
  .index-app-c {
    margin-top: 25px;
  }
  .index-app-c-box {
    height: 90px;
  }
  .index-footer {
    margin-top: 150px;
    height: 294px;
  }
  .index-footer-l .index-footer-l-r-name {
    font-size: 10px;
  }
  .index-footer-l .index-footer-l-r-txt {
    font-size: 7px;
  }
  .index-footer-l-t-icon {
    margin-right: 9px;
    width: 25px;
    height: 25px;
  }
  .index-footer-l-b {
    margin-top: 44px;
  }
  .index-footer-l-b-icon {
    margin-right: 9px;
    width: 25px;
    height: 25px;
  }
  .index-footer-r {
    width: 50%;
    position: absolute;
    top: 126px;
    right: 0;
  }
  .index-footer-r-txt {
    font-size: 10px;
  }
  .index-footer-r-list {
    margin-top: 19px;
  }
  .index-footer-r-list img {
    margin-right: 10px;
    float: left;
    display: block;
    width: 41px;
    height: 41px;
  }
  .index-footer-txt {
    margin-top: 50px;
    font-size: 7px;
  }
  .index-filex {
    position: fixed;
    top: 60%;
    right: 5px;
    width: 50px;
    height: 50px;
  }
  .index-filex img {
    width: 100%;
    height: 100%;
  }
}
@media (min-width: 769px) and (max-width: 992px) {
  .index-headbg {
    height: 350px;
  }
  .index-theme {
    padding-top: 70px;
  }
  .index-theme-name {
    font-size: 32px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-theme-txt {
    padding-top: 19px;
    font-size: 18px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
  }
  .index-form {
    margin: auto;
    width: 98%;
    position: relative;
    top: -110px;
    height: 360px;
  }
  .index-form-img {
    height: 340px;
  }
  .index-form-box {
    padding-top: 60px;
  }
  .index-form-box-img {
    display: none;
  }
  .index-form-box input {
    font-size: 12px;
    height: 40px;
  }
  .index-form-box .signUp {
    height: 40px;
    font-size: 12px;
  }
  .index-introduction-list-item {
    height: 175px;
  }
  .index-introduction-list .index-introduction-zindex-icon {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-icon1 {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-icon2 {
    width: 30px;
    height: 40px;
  }
  .index-introduction-list .index-introduction-zindex-size {
    margin-top: 8px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-advantage {
    margin-top: 60px;
  }
  .index-advantage-name {
    font-size: 26px;
  }
  .index-advantage-list-item:nth-child(n - 3) {
    margin-top: 0.2rem;
  }
  .index-advantage-list-box-icon {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon1 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon2 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon3 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon4 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-icon5 {
    width: 38.5px;
    height: 38.5px;
  }
  .index-advantage-list-box-name {
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 12px;
  }
  .index-advantage-list-box-txt {
    text-align: center;
    font-size: 10px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
  }
  .index-advantage-list-item {
    width: 88%;
    height: 200px;
  }
  .index-advantage-list-item1 {
    margin: 0 1%;
    width: 96%;
    height: 330px;
  }
  .index-advantage-list-item1-box-img {
    margin: auto;
    width: 80px;
    height: 80px;
  }
  .index-advantage-list-item1-box-text {
    font-size: 10px;
  }
  .index-advantage-list-item1-box-name {
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 12px;
  }
  .index-impression {
    margin-top: 70px;
  }
  .index-impression-name {
    font-size: 26px;
  }
  .index-impression-c {
    margin-top: 20px;
  }
  .index-impression-c .wrap {
    width: 100%;
    height: 500px;
  }
  .index-impression-c .slide {
    width: 98%;
    height: 500px;
  }
  .index-advertising {
    height: 200px;
  }
  .index-advertising-name {
    font-size: 26px;
  }
  .index-advertising-txt {
    margin-top: 19px;
  }
  .index-app {
    margin-top: 70px;
  }
  .index-app-name {
    font-size: 26px;
  }
  .index-app-c {
    margin-top: 25px;
  }
  .index-app-c-box {
    height: 90px;
  }
  .index-footer {
    margin-top: 150px;
    height: 294px;
  }
  .index-footer-l .index-footer-l-r-name {
    font-size: 8px;
  }
  .index-footer-l .index-footer-l-r-txt {
    font-size: 5px;
  }
  .index-footer-l-t-icon {
    margin-right: 9px;
    width: 25px;
    height: 25px;
  }
  .index-footer-l-b {
    margin-top: 44px;
  }
  .index-footer-l-b-icon {
    margin-right: 9px;
    width: 25px;
    height: 25px;
  }
  .index-footer-r {
    width: 50%;
    position: absolute;
    top: 126px;
    right: 0;
  }
  .index-footer-r-txt {
    font-size: 8px;
  }
  .index-footer-r-list {
    margin-top: 19px;
  }
  .index-footer-r-list img {
    margin-right: 10px;
    float: left;
    display: block;
    width: 41px;
    height: 41px;
  }
  .index-footer-txt {
    margin-top: 50px;
    font-size: 5px;
  }
  .index-filex {
    position: fixed;
    top: 60%;
    right: 5px;
    width: 50px;
    height: 50px;
  }
  .index-filex img {
    width: 100%;
    height: 100%;
  }
}
@media screen and (max-width: 768px) {
  .index-head {
    width: 56%;
    height: 0.45333333rem;
    position: absolute;
    left: 50%;
    top: 0.8rem;
    transform: translateX(-50%);
  }
  .index-head-item:nth-child(1) {
    position: absolute;
    left: 0;
  }
  .index-head-item:nth-child(2) {
    position: absolute;
    right: 0;
  }
  .index-head-item .head-icon {
    width: 0.45333333rem;
    height: 0.45333333rem;
  }
  .index-head-item .head-icon1 {
    width: 0.45333333rem;
    height: 0.45333333rem;
  }
  .index-head-item-size {
    margin-left: 0.24rem;
    line-height: 0.45333333rem;
    font-size: 0.26666667rem;
  }
  .index-headbg {
    width: 100%;
    height: 8rem;
    background: url(../img/bjj.jpg) no-repeat;
    background-size: 100% 100%;
  }
  .index-theme {
    padding-top: 2.13333333rem;
  }
  .index-theme-name {
    font-size: 0.50666667rem;
    padding: 0 1.06666667rem;
  }
  .index-theme-txt {
    padding: 0 0.8rem;
    padding-top: 0.45333333rem;
    font-size: 0.34666667rem;
  }
  .index-form {
    width: 100%;
    position: relative;
    top: -1.33333333rem;
    height: 5.33333333rem;
  }
  .index-form-img {
    display: none;
  }
  .index-form-box {
    width: 80%;
    padding-top: 0;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .index-form-box input {
    width: 100%;
    height: 0.8rem;
    padding-left: 0.53333333rem;
    margin-bottom: 0.26666667rem;
    border-radius: 5px;
    font-size: 0.34666667rem;
  }
  .index-form-box .signUp {
    width: 100%;
    height: 0.8rem;
    line-height: 0.8rem;
    font-size: 0.34666667rem;
  }
  .index-filex {
    width: 1.33333333rem;
    height: 1.33333333rem;
  }
  .index-introduction {
    position: relative;
    top: -0.53333333rem;
  }
  .index-introduction-list-item {
    position: relative;
    float: left;
    margin-right: 2%;
    margin-top: 0.26666667rem;
    width: 100%;
    height: 4rem;
    text-align: center;
  }
  .index-introduction-list-item img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 20px;
  }
  .index-introduction-list-item:last-child {
    margin-right: 0;
  }
  .index-introduction-list .index-introduction-zindex {
    width: 90%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .index-introduction-list .index-introduction-zindex-icon {
    width: 0.8rem;
    height: 0.93333333rem;
    margin: auto;
    background: url(../img/学生icon.png);
    background-size: 100% 100%;
  }
  .index-introduction-list .index-introduction-zindex-icon1 {
    width: 0.8rem;
    height: 0.93333333rem;
    margin: auto;
    background: url(../img/在线教育icon.png);
    background-size: 100% 100%;
  }
  .index-introduction-list .index-introduction-zindex-icon2 {
    width: 0.8rem;
    height: 0.93333333rem;
    margin: auto;
    background: url(../img/专业师资icon.png);
    background-size: 100% 100%;
  }
  .index-introduction-list .index-introduction-zindex-size {
    margin-top: 0.24rem;
    font-size: 0.32rem;
  }
  .index-advantage {
    margin-top: 1.33333333rem;
  }
  .index-advantage-name {
    text-align: center;
    font-size: 0.50666667rem;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #333333;
  }
  .index-advantage-list {
    margin-top: 0.53333333rem;
  }
  .index-advantage-list-item:nth-child(3n) {
    margin-right: 0;
  }
  .index-advantage-list-item:nth-child(n - 3) {
    margin-top: 0.4rem;
  }
  .index-advantage-list-box {
    width: 90%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .index-advantage-list-box-icon {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-icon1 {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-icon2 {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-icon3 {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-icon4 {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-icon5 {
    width: 0.88rem;
    height: 0.88rem;
  }
  .index-advantage-list-box-name {
    text-align: center;
    margin-top: 0.24rem;
    margin-bottom: 0.12rem;
    font-size: 0.4rem;
  }
  .index-advantage-list-box-txt {
    text-align: center;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #333333;
  }
  .index-advantage-list-item {
    position: relative;
    margin-right: 2%;
    width: 100%;
    height: 4rem;
    background: #FFFFFF;
    box-shadow: 0 0 6px 0 rgba(0, 0, 0, 0.1);
    float: left;
    border-radius: 20px;
  }
  .index-advantage-list-item1 {
    position: relative;
    margin-top: 0.24rem;
    width: 100%;
    height: 7.2rem;
    border-radius: 20px;
  }
  .index-advantage-list-item1-box-name {
    text-align: center;
    margin-top: 0.24rem;
    margin-bottom: 0.12rem;
    font-size: 0.4rem;
  }
  .index-advantage-list-item1-box-img {
    margin: auto;
    width: 100px;
    height: 100px;
  }
  .index-advantage-list-item1-box-img img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
  }
  .index-advantage-list-item1-box-text {
    font-size: 0.32rem;
  }
  .index-impression {
    margin-top: 70px;
  }
  .index-impression-name {
    font-size: 0.50666667rem;
  }
  .index-impression-c {
    margin-top: 20px;
  }
  .index-impression-c .wrap {
    width: 100%;
    height: 380px;
  }
  .index-impression-c .slide {
    width: 98%;
    height: 380px;
  }
  .index-impression-c .prev {
    width: 30px;
    height: 30px;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 99;
  }
  .index-impression-c .next {
    width: 30px;
    height: 30px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 99;
  }
  .index-advertising {
    margin-top: 0.53333333rem;
    position: relative;
    width: 100%;
    height: 4.53333333rem;
    background: url(../img/zbbaneer.png);
    background-size: 100% 100%;
    text-align: center;
  }
  .index-advertising-box {
    width: 90%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
  .index-advertising-name {
    font-size: 0.53333333rem;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-advertising-txt {
    margin-top: 0.26666667rem;
    font-size: 0.34666667rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
  }
  .index-app {
    margin-top: 1.33333333rem;
  }
  .index-app-name {
    font-size: 0.50666667rem;
  }
  .index-app-box {
    width: 90%;
    margin: auto;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .index-app-c {
    width: 100%;
    margin-top: 40px;
    position: relative;
  }
  .index-app-c-box:last-child {
    margin-right: 0;
  }
  .index-app-c-box {
    float: left;
    width: 46%;
    height: 1.33333333rem;
    margin-right: 8%;
    background: linear-gradient(0deg, #2496FF 0%, #68B7FF 100%);
    border-radius: 10px;
  }
  .index-app-c-box img {
    width: 100%;
    height: 100%;
    border-radius: 10px;
  }
  .index-footer {
    margin-top: 2.4rem;
    position: relative;
    width: 100%;
    height: 6.4rem;
    background: url('../img/footer.png');
    background-size: 100% 100%;
  }
  .index-footer-l {
    width: 60%;
    margin-top: 2.4rem;
  }
  .index-footer-l .index-footer-l-r-name {
    font-size: 0.24rem;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #FFFFFF;
  }
  .index-footer-l .index-footer-l-r-txt {
    font-size: 0.21333333rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
  }
  .index-footer-l-t {
    height: 0.66666667rem;
  }
  .index-footer-l-t-icon {
    float: left;
    margin-right: 0.12rem;
    width: 0.66666667rem;
    height: 0.66666667rem;
    background: url(../img/联系icon.png);
    background-size: 100% 100%;
  }
  .index-footer-l-b {
    margin-top: 0.58666667rem;
    height: 0.66666667rem;
  }
  .index-footer-l-b-icon {
    float: left;
    margin-right: 0.12rem;
    width: 0.66666667rem;
    height: 0.66666667rem;
    background: url(../img/邮箱icon.png);
    background-size: 100% 100%;
  }
  .index-footer-r {
    width: 40%;
    top: 2.66666667rem;
    line-height: 0.66666667rem;
  }
  .index-footer-r-txt {
    font-size: 0.24rem;
  }
  .index-footer-r-list {
    margin-top: 0.21333333rem;
  }
  .index-footer-r-list img {
    margin-right: 0.13333333rem;
    float: left;
    display: block;
    width: 0.93333333rem;
    height: 0.93333333rem;
  }
  .index-footer-txt {
    margin-top: 1.33333333rem;
    text-align: center;
    font-size: 0.21333333rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
  }
  .index-filex {
    position: fixed;
    top: 60%;
    right: 5px;
    width: 40px;
    height: 40px;
  }
  .index-filex img {
    width: 100%;
    height: 100%;
  }
}