* {
  margin: 0;
  padding: 0;
}

body {
  min-width: 1200px;
}

a {
  text-decoration: none;
}

#main * {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -o-box-sizing: border-box;
  -ms-box-sizing: border-box;
  box-sizing: border-box;
}

#main {
  font-size: 16px;
  font-family: "AlibabaPuHuiTiRegular";
  position: relative;
  width: 100%;
  background: #ffffff url(../img/banner.jpg) no-repeat;
  background-position: top center;
  padding-top: 635px;
}

#main input,
#main select,
#main textarea {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  outline: none;
}

#main i,
#main em {
  font-style: normal;
}

input:-webkit-autofill {
  -webkit-box-shadow: 0 0 0px 1000px #f1f1f1 inset !important;
}

input:-webkit-autofill {
  -webkit-box-shadow: 0 0 0px 1000px #ffffff inset !important;
}

table {
  width: 100%;
  text-align: center;
  border-collapse: collapse;
  border-spacing: 0;
}

table td {
  word-break: break-all;
  word-wrap: break-word;
}

/* ::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.06);
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.08);
}

::-webkit-scrollbar-thumb {
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.12);
  -webkit-box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.2);
} */

.dis-f {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.dis-b {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dis-c {
  display: flex;
  align-items: center;
  justify-content: center;
}

.dis-e {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.btn {
  cursor: pointer;
  text-align: center;
}
.tc {
  text-align: center;
}
.pr {
  position: relative;
}
.po {
  position: absolute;
}
.po_center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
}
#main .content {
  width: 1200px;
  margin: 0 auto;
}
#main .offerbox {
  margin-bottom: 80px;
}
#main .offerbox .content {
  position: relative;
  padding-bottom: 80px;
}

#main .stitle {
  font-family: "AlibabaPuHuiTiHeavy";
  font-size: 55px;
  color: #5c1d78;
  line-height: 55px;
  margin-bottom: 45px;
}

#main .offerbox ul {
  flex-wrap: wrap;
  height: 500px;
  overflow: hidden;
}
#main .offerbox ul.active {
  height: auto;
}
#main .offerbox li {
  width: 225px;
  height: 180px;
  background: url(../img/offer_bg.png) no-repeat;
  background-size: 100%;
  padding: 20px;
  margin-right: 18px;
  margin-top: 18px;
}
#main .offerbox li:nth-child(5n) {
  margin-right: 0;
}
#main .offerbox li:nth-child(1),
#main .offerbox li:nth-child(2),
#main .offerbox li:nth-child(3),
#main .offerbox li:nth-child(4),
#main .offerbox li:nth-child(5) {
  margin-top: 0;
}
#main .offerbox li .logo {
  width: 60px;
  height: 60px;
  background: #ffffff;
  border-radius: 60px;
  overflow: hidden;
}
#main .offerbox li .logo img {
  width: 100%;
}
#main .offerbox li .otop {
  height: 60px;
  font-size: 24px;
  color: #5c1d78;
  margin-bottom: 15px;
}

#main .offerbox li .otop .offerNum {
  align-items: flex-end;
  line-height: 24px;
}
#main .offerbox li .otop em {
  font-family: "AvantiBold";
  font-size: 50px;
  line-height: 35px;
}
#main .offerbox li .cname {
  font-family: "AlibabaPuHuiTiMedium";
  font-size: 20px;
  color: #000000;
  line-height: 25px;
  height: 50px;
}
#main .offerbox li .ranking {
  width:100%;
  font-size: 14px;
  color: #333333;
}
#main .offerbox li .ranking span {
  font-family: "AlibabaPuHuiTiMedium";
  font-size: 18px;
  color: #000000;
}
#main .offerbox p {
  color: #999999;
  font-size: 12px;
  line-height: 17px;
  position: absolute;
  bottom: 15px;
  right: 0;
}
#main .offerbox .getmore {
  width: 100px;
  flex-direction: column;
  color: #969696;
  cursor: pointer;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}
#main .offerbox .getmore img {
  margin-top: 5px;
}
#main .btnbox {
  margin-top: 30px;
}
#main .samebtn {
  width: 310px;
  text-align: center;
  font-size: 24px;
  line-height: 60px;
  background: #f4bf61;
  font-family: "AlibabaPuHuiTiMedium";
  color: #333333;
  cursor: pointer;
  border-radius: 4px;
}
#main .samebtn:hover {
  background: #f6aa27;
}

#main .sameNav {
  width: 100%;
  height: 80px;
  background: #5c1d78;
}
#main .sameNav.fixed {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
}
#main .sameNav .content {
  height: 100%;
}
#main .sameNav .nav {
  font-family: "AlibabaPuHuiTiMedium";
  height: 60px;
  flex-grow: 1;
  margin-right: 20px;
  font-size: 20px;
  color: #ffffff;
  border-radius: 6px;
  cursor: pointer;
}
#main .sameNav .nav.active {
  background: #f4bf61;
  color: #333333;
}
#main .tabcontent > div {
  margin-bottom: 80px;
}
#main .tabcontent .samebtn {
  width: 230px;
}
#main .tabcontent .samebtn:nth-child(2) {
  margin-left: 60px;
}
#main .tabcontent .btnbox {
  margin-top: 50px;
}
#main .alevelInfo{
  padding-top: 80px;
}
#main .alevelInfo .content1 {
  width: 1200px;
  height: 250px;
  border: 1px solid #5c1d78;
  margin: 0 auto 0;
  padding: 0 28px;
}
#main .alevelInfo .content1 .info {
  width: 766px;
}
#main .alevelInfo .content1 .title {
  font-size: 24px;
  line-height: 62px;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelInfo .content1 .text {
  font-size: 14px;
  line-height: 24px;
}
#main .alevelInfo .content1 span {
  color: #dd0e0e;
  cursor: pointer;
}
#main .alevelInfo .content1 span:hover {
  text-decoration: underline;
}
#main .alevelInfo .content1 .pic-box {
  width: 354px;
  height: auto;
  background: #f3e9f7;
  text-align: center;
  padding: 10px 0;
}
#main .alevelInfo .content2 {
  width: 1200px;
  height: 259px;
  margin: 46px auto 0;
  position: relative;
  text-align: center;
}
#main .alevelInfo .content2 .title {
  font-size: 46px;
  line-height: 54px;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelInfo .content2 .item {
  font-size: 26px;
  line-height: 36px;
  position: absolute;
  border: solid 1px #5c1d78;
  padding-top: 20px;
}
#main .alevelInfo .content2 .item::after {
  content: "";
  border: 9px solid #5c1d78;
  position: absolute;
  z-index: 1;
}
#main .alevelInfo .content2 .item1::after {
  border-top-color: transparent;
  border-right-color: transparent;
  top: -1px;
  right: -19px;
}
#main .alevelInfo .content2 .item2::after {
  border-top-color: transparent;
  border-left-color: transparent;
  top: -1px;
  left: -19px;
}
#main .alevelInfo .content2 .item3::after {
  border-top-color: transparent;
  border-left-color: transparent;
  top: -19px;
  right: -1px;
}
#main .alevelInfo .content2 .item5::after {
  border-top-color: transparent;
  border-right-color: transparent;
  top: -19px;
  left: -1px;
}
#main .alevelInfo .content2 .item1,
#main .alevelInfo .content2 .item2 {
  width: 324px;
  top: 0px;
  height: 123px;
}
#main .alevelInfo .content2 .item3,
#main .alevelInfo .content2 .item4,
#main .alevelInfo .content2 .item5 {
  width: 388px;
  height: 123px;
  bottom: 0px;
  /* border: solid 1px #5c1d78; */
}
#main .alevelInfo .content2 .item1,
#main .alevelInfo .content2 .item3 {
  left: 0;
}
#main .alevelInfo .content2 .item4 {
  left: 406px;
}
#main .alevelInfo .content2 .item4::after {
  border: 23px solid #5c1d78;
  top: -46px;
  left: 50%;
  transform: translateX(-50%);
  border-top-color: transparent;
  border-left-color: transparent;
  border-right-color: transparent;
}
#main .alevelInfo .content2 .item2,
#main .alevelInfo .content2 .item5 {
  right: 0;
}
#main .alevelInfo .content2 span {
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelExam {
  padding-top: 80px;
  height: 1420px;
  background: #5c1d78 url(../img/section2_bg.png) no-repeat center bottom;
  margin-bottom: 0 !important;
}
#main .alevelExam .stitle {
  color: #ffffff;
}
#main .alevelExam .content1 {
  width: 1200px;
  height: 502px;
  margin: 56px auto 0;
  position: relative;
  color: #ffffff;
}
#main .alevelExam .content1 .title {
  font-size: 34px;
  line-height: 128px;
  font-family: "AlibabaPuHuiTiMedium";

  padding-top: 14px;
  position: absolute;
  top: -56px;
}
#main .alevelExam .content1 .text {
  width: 536px;
  font-size: 14px;
  line-height: 24px;
}
#main .alevelExam .content1 .ask {
  font-size: 16px;
  line-height: 40px;
  font-family: "AlibabaPuHuiTiMedium";
  text-align: right;
  margin-top: 12px;
  text-decoration: underline;
  cursor: pointer;
}
#main .alevelExam .content1 .ask:hover {
  color: #ff7575;
}
#main .alevelExam .content1 ul {
  overflow: hidden;
  text-align: center;
  margin-top: 44px;
}
#main .alevelExam .content1 .bottom {
  width: 536px;
  margin-top: 35px;
}
#main .alevelExam .content1 .tip {
  font-size: 16px;
  line-height: 42px;
  font-family: "AlibabaPuHuiTiMedium";

  float: left;
}
#main .alevelExam .content1 .samebtn {
  width: 154px;
  font-size: 20px;
  line-height: 42px;
  float: right;
}
#main .alevelExam .content1 .left,
#main .alevelExam .content1 .right {
  float: left;
  width: 600px;
  padding-top: 110px;
}
#main .alevelExam .content1 .left {
  border-right: 1px dashed #999ee2;
}
#main .alevelExam .content1 .left .title {
  padding-left: 42px;
  background: url(../img/section2_icon1.png) no-repeat;
  left: -42px;
}
#main .alevelExam .content1 .left .ask {
  margin-right: 63px;
}
#main .alevelExam .content1 .left ul {
  font-size: 16px;
  line-height: 34px;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelExam .content1 .left li {
  width: 174px;
  background: #995db3;
  float: left;
  margin: 0 7px 7px 0;
}
#main .alevelExam .content1 .right .title {
  padding-right: 42px;
  background: url(../img/section2_icon2.png) no-repeat right center;
  right: -42px;
}
#main .alevelExam .content1 .right .text {
  margin-left: 64px;
}
#main .alevelExam .content1 .right ul {
  font-size: 16px;
  line-height: 20px;
}
#main .alevelExam .content1 .right ul div {
  width: 100%;
  height: 58px;
  display: table;
}
#main .alevelExam .content1 .right ul p {
  display: table-cell;
  vertical-align: middle;
}
#main .alevelExam .content1 .right li {
  width: 73px;
  float: right;
  margin-left: 4px;
}
#main .alevelExam .content1 .right .first {
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelExam .content1 .right .text-box1 {
  background: #480067;
}
#main .alevelExam .content1 .right .text-box2 {
  background: #995db3;
}
#main .alevelExam .content1 .right .bottom {
  margin-left: 64px;
}
#main .alevelExam .content2 {
  width: 1200px;
  overflow: hidden;
  margin: 38px auto 0;
}
#main .alevelExam .content2 .left {
  width: 770px;
  height: 632px;
  background: #ffffff;
  float: left;
  padding-top: 40px;
}
#main .alevelExam .content2 .left .title {
  font-size: 34px;
  line-height: 34px;
  color: #010101;
  font-family: "AlibabaPuHuiTiMedium";
  border-left: 7px solid #5c1d78;
  padding-left: 24px;
}
#main .alevelExam .content2 .left .tip {
  font-size: 12px;
  line-height: 34px;
  color: #979797;
  margin-left: 30px;
}
#main .alevelExam .content2 .left .samebtn {
  width: 346px;
  margin: 0 auto;
}
#main .alevelExam .content2 .right {
  float: right;
  width: 412px;
  height: 632px;
  background: #ffffff url(../img/section2_form_bg.png) no-repeat;
  padding-top: 28px;
}
#main .alevelExam .content2 .right .head {
  text-align: center;
}
#main .alevelExam .content2 .right .title1 {
  display: inline-block;
  font-size: 34px;
  line-height: 46px;
  font-family: "AlibabaPuHuiTiMedium";

  position: relative;
}
#main .alevelExam .content2 .right .title1:before,
#main .alevelExam .content2 .right .title1:after {
  content: "";
  position: absolute;
  width: 36px;
  height: 4px;
  background: #000;
  top: 21px;
}
#main .alevelExam .content2 .right .title1:before {
  left: -50px;
}
#main .alevelExam .content2 .right .title1:after {
  right: -50px;
}
#main .alevelExam .content2 .right .title2 {
  font-size: 34px;
  line-height: 48px;
  color: #dd0e0e;
  font-family: "AlibabaPuHuiTiMedium";

  text-align: center;
}
#main .alevelExam table {
  width: 670px;
  background: #fff;
  text-align: center;
}
#main .alevelExam .table1 {
  margin: 44px 0 0 30px;
}
#main .alevelExam th,
#main .alevelExam td {
  font-size: 14px;
  line-height: 28px;
  border: 1px solid #5c1d78;
}
#main .alevelExam th {
  color: #ffffff;
  font-family: "AlibabaPuHuiTiMedium";
  background: #5c1d78;
  border-bottom: none;
}
#main .alevelExam .td1 {
  width: 82px;
}
#main .alevelExam .td2 {
  width: 114px;
}
#main .alevelExam .td3 {
  width: 172px;
}
#main .alevelExam .td4 {
  width: 210px;
}
#main .alevelExam .td4,
#main .alevelExam .td5 {
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelExam .td5 {
  color: #dd0e0e;
  text-decoration: underline;
  cursor: pointer;
}

#main .alevelExam .tbody {
  width: 710px;
  height: 360px;
  overflow: auto;
  margin: 0 auto;
}
#main .alevelExam form {
  width: 340px;
  margin: 20px auto 0;
}
#main .alevelExam form .item {
  background: #fff;
  border: 1px solid #4d4d4d;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}
#main .alevelExam form .icon-box {
  width: 44px;
  float: left;
  text-align: center;
  margin-top: 11px;
}
#main .alevelExam input,
#main .alevelExam select {
  font-size: 14px;
  line-height: 50px;
  color: #999;
  width: 292px;
  height: 50px;
  background: transparent;
  float: left;
  padding-right: 10px;
  padding-left: 10px;
}
#main .alevelExam select {
  background: transparent url(../img/form_select_bg1.png) no-repeat 262px center;
}
#main .alevelExam .submit {
  margin: 30px auto 0;
}
#main .alevelLesson {
  padding-top: 80px;
}
#main .alevelLesson .head {
  overflow: hidden;
}
#main .alevelLesson .head img {
  float: left;
  margin: 8px 28px 0 0;
}
#main .alevelLesson .head .info {
  float: left;
}
#main .alevelLesson .head .text-bg {
  font-size: 88px;
  line-height: 88px;
  color: #f3e9f7;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelLesson .head .title {
  font-size: 34px;
  line-height: 50px;
  color: #010101;
  font-family: "AlibabaPuHuiTiMedium";

  margin-top: -35px;
}
#main .alevelLesson .head .tip {
  font-size: 24px;
  line-height: 42px;
}
#main .alevelLesson table {
  width: 100%;
  margin-top: 30px;
  background: #fff;
  text-align: center;
}
#main .alevelLesson th,
#main .alevelLesson td {
  font-size: 16px;
}
#main .alevelLesson th {
  color: #fff;
  font-family: "AlibabaPuHuiTiMedium";
  border: 1px solid #5c1d78;
  background: #5c1d78;
}
#main .alevelLesson td {
  border: 1px solid #5c1d78;
}
#main .alevelLesson .content1 td:last-child {
  cursor: pointer;
  color: #dd0e0e;
  text-decoration: underline;
}
#main .alevelLesson form {
  width: 1142px;
  margin: 0 auto;
}
#main .alevelLesson form .item {
  width: 290px;
  background: #fff;
  border: 1px solid #4d4d4d;
  border-radius: 4px;
  overflow: hidden;
  float: left;
  margin-right: 10px;
}
#main .alevelLesson form .icon-box {
  width: 44px;
  text-align: center;
  float: left;
  margin-top: 11px;
}
#main .alevelLesson form input,
#main .alevelLesson form select {
  font-size: 14px;
  line-height: 50px;
  color: #999;
  width: 242px;
  height: 50px;
  float: left;
  background: transparent;
}
#main .alevelLesson form select {
  background: transparent url(../img/form_select_bg1.png) no-repeat 212px center;
}
#main .alevelLesson form .submit {
  width: 206px;
  font-size: 28px;
  line-height: 52px;
  float: right;
}
#main .alevelLesson .content1,
#main .alevelLesson .content2,
#main .alevelLesson .content3 {
  width: 1200px;
  margin: 62px auto 0;
}
#main .alevelLesson .content1 th {
  line-height: 50px;
}
#main .alevelLesson .content1 td {
  line-height: 44px;
}
#main .alevelLesson .content1 .form-box {
  height: 170px;
  background: url(../img/section3_form1_bg.png) no-repeat;
  margin-top: 40px;
}
#main .alevelLesson .content1 .tit {
  font-size: 40px;
  line-height: 98px;
  font-family: "AlibabaPuHuiTiMedium";

  font-style: oblique;
  margin-left: 28px;
}
#main .alevelLesson .content2 .head a {
  font-size: 26px;
  line-height: 42px;
  color: #5c1d78;
  font-family: "AlibabaPuHuiTiMedium";

  float: left;
  margin-top: 103px;
}
#main .alevelLesson .content2 .head img {
  float: right;
  margin-left: 28px;
}
#main .alevelLesson .content2 .head .text-bg,
#main .alevelLesson .content2 .head .title {
  text-align: right;
}
#main .alevelLesson .content2 .head .info {
  float: right;
}
#main .alevelLesson .content2 th {
  line-height: 20px;
  height: 51px;
}
#main .alevelLesson .content2 td {
  padding: 10px 0;
}
#main .alevelLesson .content2 td:first-child {
  padding: 10px 16px;
}
#main .alevelLesson .content2 .span {
  text-align: left;
  padding-left: 14px;
}
#main .alevelLesson .content2 .samebtn-box {
  margin-top: 50px;
}
#main .alevelLesson .content3 .info-box {
  width: 968px;
  height: 492px;
  border: 1px solid #5c1d78;
  position: relative;
  margin: 30px 0 0 232px;
  padding-top: 28px;
}
#main .alevelLesson .content3 ul {
  text-align: center;
  overflow: hidden;
  margin-left: 145px;
}
#main .alevelLesson .content3 li {
  width: 150px;
  height: 134px;
  background: #dadcf9;
  float: left;
  margin: 0 10px 10px 0;
  padding-top: 7px;
}
#main .alevelLesson .content3 .empty {
  background: transparent;
}
#main .alevelLesson .content3 .hot {
  position: absolute;
  top: 320px;
  left: 56px;
}
#main .alevelLesson .content3 .hot .tit {
  font-size: 18px;
  line-height: 40px;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelLesson .content3 .hot .text {
  font-size: 16px;
  line-height: 24px;
  position: relative;
  padding-left: 16px;
}
#main .alevelLesson .content3 .hot .text:before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid #5c1d78;
  position: absolute;
  top: 8px;
  left: 0;
}
#main .alevelLesson .content3 .other {
  width: 350px;
  height: 278px;
  background: #5c1d78;
  padding: 14px 0 0 14px;
  position: absolute;
  top: 12px;
  left: -232px;
}
#main .alevelLesson .content3 .other:after {
  content: "";
  border: 8px solid transparent;
  border-top-color: #5c1d78;
  border-right-color: #5c1d78;
  position: absolute;
  bottom: -16px;
  right: 0;
}
#main .alevelLesson .content3 .other .item {
  overflow: hidden;
}
#main .alevelLesson .content3 .other .icon-box {
  width: 32px;
  text-align: center;
  float: left;
  margin-top: 6px;
}
#main .alevelLesson .content3 .other .tit {
  font-size: 16px;
  line-height: 30px;
  color: #fff;
  font-family: "AlibabaPuHuiTiMedium";

  float: left;
}
#main .alevelLesson .content3 .other .tit span {
  font-weight: normal;
}
#main .alevelLesson .content3 .other .text {
  font-size: 16px;
  line-height: 30px;
  color: #fff;
  margin-left: 32px;
}
#main .alevelLesson .content3 .samebtn {
  width: 210px;
  font-size: 28px;
  line-height: 52px;
  margin: 14px 0 0 106px;
}
#main .alevelLesson .bottom {
  margin: 40px auto 0;
  width: 1200px;
  height: 250px;
  background: url(../img/section3_form2_bg.png) no-repeat;
  padding-top: 24px;
}
#main .alevelLesson .bottom .bottom-head {
  overflow: hidden;
  margin-left: 30px;
}
#main .alevelLesson .bottom .title-box {
  float: left;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .alevelLesson .bottom .title1 {
  font-size: 68px;
  line-height: 74px;
  color: #ffc600;
}
#main .alevelLesson .bottom .title2 {
  font-size: 32px;
  line-height: 38px;
  color: #fff;
}
#main .alevelLesson .bottom ul {
  overflow: hidden;
  float: left;
  margin: 8px 0 0 22px;
  text-align: center;
  font-size: 14px;
  line-height: 20px;
  color: #fff;
}
#main .alevelLesson .bottom ul p {
  margin-top: 14px;
}
#main .alevelLesson .bottom li {
  width: 170px;
  float: left;
}
#main .alevelLesson .bottom form {
  margin-top: 36px;
}
#main .alevelLesson .bottom select {
  background-image: url(../img/form_select_bg2.png);
}
#main .IGCSEIntr .content {
  width: 1200px;
  margin: 0 auto;
  padding-top: 111px;
}
#main .IGCSEIntr .c-title {
  text-align: center;
  margin-bottom: 64px;
}
#main .IGCSEIntr .c-title > p {
  font-size: 40px;
  line-height: 40px;
  color: #000000;
  margin-bottom: 24px;
}
#main .IGCSEIntr .c-title > h4 {
  font-size: 50px;
  line-height: 50px;
  color: #000000;
}
#main .IGCSEIntr ul {
  position: relative;
  padding: 0 139px;
  margin-bottom: 70px;
}
#main .IGCSEIntr li {
  width: 281px;
  height: 115px;
  background-color: #ffffff;
  border: solid 1px #5c1d78;
  font-size: 20px;
  font-family: "AlibabaPuHuiTiMedium";
  color: #000000;
  flex-shrink: 0;
  position: relative;
}
#main .IGCSEIntr li:first-child,
#main .IGCSEIntr li:last-child {
  position: absolute;
  top: -179px;
}
#main .IGCSEIntr li:first-child {
  left: 0;
}
#main .IGCSEIntr li:last-child {
  right: 0;
}
#main .IGCSEIntr li::after {
  content: "";
  border: 23px solid #5c1d78;
  position: absolute;
  z-index: 1;
}
#main .IGCSEIntr li:first-child::after {
  top: 50%;
  transform: translateY(-50%);
  right: -46px;
  border-top-color: transparent;
  border-right-color: transparent;
  border-bottom-color: transparent;
}
#main .IGCSEIntr li:last-child::after {
  top: 50%;
  transform: translateY(-50%);
  left: -46px;
  border-top-color: transparent;
  border-left-color: transparent;
  border-bottom-color: transparent;
}

#main .IGCSEIntr li:nth-child(2)::after {
  top: -46px;
  right: -23px;
  border-top-color: transparent;
  border-left-color: transparent;
  border-right-color: transparent;
}
#main .IGCSEIntr li:nth-child(3)::after {
  top: -46px;
  left: 50%;
  transform: translateX(-50%);
  border-top-color: transparent;
  border-left-color: transparent;
  border-right-color: transparent;
}
#main .IGCSEIntr li:nth-child(4)::after {
  top: -46px;
  left: -23px;
  border-top-color: transparent;
  border-left-color: transparent;
  border-right-color: transparent;
}
#main .IGCSEIntr li:nth-child(2):before,
#main .IGCSEIntr li:nth-child(4):before {
  content: "";
  width: 23px;
  height: 46px;
  position: absolute;
  top: -46px;
  right: -24px;
  background: #ffffff;
  z-index: 2;
}
#main .IGCSEIntr li:nth-child(4):before {
  right: auto;
  left: -24px;
}
#main .IGCSEIntr .intr .left {
  width: 828px;
  height: 250px;
  background-color: #ffffff;
  border: solid 1px #5c1d78;
  padding: 23px 46px 0 23px;
}
#main .IGCSEIntr .intr .left h3 {
  font-size: 24px;
  line-height: 24px;
  color: #000000;
  margin-bottom: 25px;
}
#main .IGCSEIntr .intr .left p {
  font-size: 16px;
  line-height: 30px;
  color: #666666;
}
#main .IGCSEIntr .intr .left span {
  font-size: 16px;
  color: #ff0000;
  cursor: pointer;
}
#main .IGCSEIntr .intr .right > div {
  width: 350px;
  height: 120px;
  background-color: #5c1d78;
  border: solid 1px #5c1d78;
  padding-left: 17px;
}
#main .IGCSEIntr .intr .right > div:nth-child(1) {
  margin-bottom: 10px;
}
#main .IGCSEIntr .intr .right > div > div {
  width: 81px;
  height: 81px;
  background-color: #ffffff;
  font-size: 20px;
  font-family: "AlibabaPuHuiTiMedium";
  line-height: 26px;
  color: #5c1d78;
  border-radius: 81px;
  margin-right: 18px;
}
#main .IGCSEIntr .intr .right > div p {
  font-size: 16px;
  font-family: "AlibabaPuHuiTiMedium";
  line-height: 30px;
  color: #ffffff;
}
#main .IGCSELesson {
  background: #5c1d78;
  padding-bottom: 80px;
  padding-top: 80px;
  margin-bottom: 0 !important;
}
#main .IGCSELesson .stitle {
  color: #ffffff;
}
#main .IGCSELesson .content {
  width: 1200px;
  margin: 0 auto;
}
#main .IGCSELesson .top {
  margin-top: 75px;
  margin-bottom: 80px;
}
#main .IGCSELesson .top .tab-box {
  height: 60px;
}
#main .IGCSELesson .top .tab {
  width: 165px;
  height: 60px;
  background-color: #e9b9ff80;
  margin-right: 25px;
  font-size: 24px;
  font-family: "AlibabaPuHuiTiMedium";
  color: #333333;
  cursor: pointer;
}
#main .IGCSELesson .top .tab.active {
  background-color: #8435a7;
  color: #ffffff;
}
#main .IGCSELesson .top .detail {
  height: 220px;
  background-color: #ffffff;
  border: solid 1px #5c1d78;
  padding-left: 35px;
  padding-right: 35px;
  padding-top: 37px;
  margin-bottom: 30px;
}
#main .IGCSELesson .top .detail > div {
  display: none;
}
#main .IGCSELesson .top .detail > .active {
  display: block;
}
#main .IGCSELesson .top .detail .dis-f {
  margin-bottom: 20px;
  align-items: flex-start;
}
#main .IGCSELesson .top .detail .left {
  width: 118px;
  height: 40px;
  background-color: #edeeff;
  border-radius: 20px;
  font-size: 16px;
  font-family: "AlibabaPuHuiTiMedium";

  color: #5c1d78;
  flex-shrink: 0;
  margin-right: 12px;
}
#main .IGCSELesson .top .detail p {
  font-size: 16px;
  line-height: 30px;
  color: #666666;
}

#main .IGCSELesson .btm > div {
  width: 390px;
  height: 306px;
  background-color: #ffffff;
  border: solid 1px #5c1d78;
  border-right-width: 10px;
  padding: 27px 25px;
}
#main .IGCSELesson .btm h4 {
  font-size: 24px;
  line-height: 24px;
  color: #050505;
  text-align: center;
  margin-bottom: 30px;
}
#main .IGCSELesson .btm .spans {
  flex-wrap: wrap;
  margin-bottom: 23px;
}
#main .IGCSELesson .btm .spans span {
  width: 100px;
  height: 55px;
  background-color: #ffffff;
  border: solid 1px #5c1d78;
  font-size: 18px;
  font-family: "AlibabaPuHuiTiMedium";

  color: #5c1d78;
}
#main .IGCSELesson .btm .spans span.mar {
  margin-top: 15px;
}
#main .IGCSELesson .btm .samebtn {
  width: 240px;
  height: 50px;
  margin: 0 auto;
  cursor: pointer;
}

#main .IGCSELesson .btm > div:nth-child(2) .spans span {
  width: 160px;
}
#main .IGCSELesson .btm .other .txt {
  margin-bottom: 12px;
}
#main .IGCSELesson .btm .other .txt > div {
  margin-bottom: 5px;
}
#main .IGCSELesson .btm .other .txt > div:last-child {
  margin-bottom: 0;
}
#main .IGCSELesson .btm .other em {
  width: 30px;
  height: 30px;
  border-radius: 15px;
  border: solid 1px #5c1d78;
  font-size: 20px;
  font-family: "AlibabaPuHuiTiMedium";

  color: #5c1d78;
  flex-shrink: 0;
  font-style: normal;
  margin-right: 5px;
  box-sizing: border-box;
}
#main .IGCSELesson .btm .other .txt > div > div {
  width: 298px;
  height: 30px;
  background-color: #ffffff;
  border-radius: 15px;
  border: solid 1px #5c1d78;
}
#main .IGCSELesson .btm .other .tag {
  width: 61px;
  height: 30px;
  background-color: #5c1d78;
  border-radius: 15px;
  font-size: 18px;
  font-family: "AlibabaPuHuiTiMedium";

  color: #ffffff;
  flex-shrink: 0;
}
#main .IGCSELesson .btm .other p {
  width: 100%;
  font-size: 16px;
  line-height: 22px;
  letter-spacing: 0px;
  color: #5c1d78;
  text-align: center;
}
#main .teacherbox {
  background: url(../img/section4_bg.png) no-repeat center bottom;
  padding-bottom: 70px;
  margin-bottom: 0 !important;
  padding-top: 80px;
}

#main .teacherbox .more {
  width: 1200px;
  margin: 26px auto 0;
  text-align: right;
}
#main .teacherbox .more a {
  font-size: 18px;
  line-height: 48px;
  color: #000;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .teacherbox .more a:hover {
  text-decoration: underline;
}
#main .teacherbox .wrap1 {
  text-align: center;
}
#main .teacherbox .wrap1 li {
  display: inline-block;
  width: 232px;
  height: 182px;
  background: #e9e9e9;
  margin: 0 5px;
  overflow: hidden;
  position: relative;
  padding-top: 10px;
  cursor: pointer;
}
#main .teacherbox .wrap1 li:after {
  content: "";
  border: 13px solid transparent;
  border-right-color: #fff;
  border-bottom-color: #fff;
  position: absolute;
  bottom: 0;
  right: 0;
}
#main .teacherbox .wrap1 li:hover .bg {
  top: 0;
}
#main .teacherbox .wrap1 .bg {
  transition: all 0.3s;
  display: table;
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  left: 0;
  top: 182px;
}
#main .teacherbox .wrap1 p {
  font-size: 14px;
  line-height: 20px;
  color: #fff;
  display: table-cell;
  vertical-align: middle;
}
#main .teacherbox .wrap2 {
  width: 1020px;
  height: 300px;
  border: 1px solid #5c1d78;
  margin: 50px auto 0;
}
#main .teacherbox .wrap2 li {
  height: 100%;
  position: relative;
  display: none;
  padding-top: 18px;
}
#main .teacherbox .wrap2 .first {
  display: block;
}
#main .teacherbox .wrap2 .pic-box {
  width: 354px;
  text-align: center;
  position: absolute;
  bottom: 0;
  left: 0;
}
#main .teacherbox .wrap2 .info {
  margin-left: 354px;
}
#main .teacherbox .wrap2 .head {
  overflow: hidden;
  width: 620px;
  border-bottom: 3px solid #5c1d78;
  line-height: 60px;
  margin-bottom: 10px;
}
#main .teacherbox .wrap2 .name {
  font-size: 28px;
  color: #5c1d78;
  font-family: "AlibabaPuHuiTiMedium";

  margin-right: 20px;
  float: left;
}
#main .teacherbox .wrap2 .flag {
  font-size: 20px;
  float: left;
}
#main .teacherbox .wrap2 .text {
  font-size: 16px;
  line-height: 30px;
}
#main .teacherbox .wrap2 span {
  font-family: "AlibabaPuHuiTiMedium";
}
#main .teacherbox .wrap2 .bottom {
  margin-top: 20px;
}
#main .teacherbox .wrap2 .samebtn {
  width: 190px;
  font-size: 20px;
  line-height: 38px;
  float: left;
}
#main .teacherbox .wrap2 a {
  font-size: 20px;
  line-height: 38px;
  color: #5c1d78;
  font-family: "AlibabaPuHuiTiMedium";

  float: right;
  margin-right: 24px;
}
#main .teacherbox .wrap2 a:hover {
  text-decoration: underline;
}
#main .teacherbox .content {
  width: 1070px;
  height: 558px;
  margin: 44px auto 0;
  background: url(../img/section4_content_bg.png) no-repeat center top;
  padding-top: 156px;
  position: relative;
}
#main .teacherbox .content .num {
  font-size: 90px;
  line-height: 90px;
  color: #5c1d78;
  font-family: "AlibabaPuHuiTiMedium";

  text-align: center;
}
#main .teacherbox .content .text1 {
  font-size: 50px;
  line-height: 72px;
  font-family: "AlibabaPuHuiTiMedium";

  text-align: center;
}
#main .teacherbox .content .text2 {
  font-size: 28px;
  line-height: 42px;
  text-align: center;
}
#main .teacherbox .wrap3 {
  width: 456px;
  height: 468px;
  position: absolute;
  top: 28px;
  left: 307px;
  font-size: 48px;
  line-height: 106px;
  color: #fff;
  font-family: "AlibabaPuHuiTiMedium";

  text-align: center;
}
#main .teacherbox .wrap3 li {
  width: 106px;
  border-radius: 50%;
  background: #5c1d78;
  position: absolute;
}
#main .teacherbox .wrap3 .item1,
#main .teacherbox .wrap3 .item2 {
  top: 0;
}
#main .teacherbox .wrap3 .item1,
#main .teacherbox .wrap3 .item3 {
  left: 0;
}
#main .teacherbox .wrap3 .item2,
#main .teacherbox .wrap3 .item4 {
  right: 0;
}
#main .teacherbox .wrap3 .item3,
#main .teacherbox .wrap3 .item4 {
  bottom: 0;
}
#main .teacherbox .wrap4 {
  width: 100%;
  height: 506px;
  position: absolute;
  top: 52px;
  left: 0;
}
#main .teacherbox .wrap4 li {
  width: 254px;
  position: absolute;
}
#main .teacherbox .wrap4 .tit {
  font-size: 28px;
  line-height: 60px;
  color: #5c1d78;
  font-family: "AlibabaPuHuiTiMedium";
}
#main .teacherbox .wrap4 .text {
  font-size: 14px;
  line-height: 20px;
}
#main .teacherbox .wrap4 .item1,
#main .teacherbox .wrap4 .item2 {
  top: 0;
}
#main .teacherbox .wrap4 .item1,
#main .teacherbox .wrap4 .item3 {
  left: 0;
}
#main .teacherbox .wrap4 .item1 .tit,
#main .teacherbox .wrap4 .item3 .tit {
  text-align: right;
}
#main .teacherbox .wrap4 .item2,
#main .teacherbox .wrap4 .item4 {
  right: 0;
}
#main .teacherbox .wrap4 .item3,
#main .teacherbox .wrap4 .item4 {
  bottom: 0;
}
#main .teacherbox .samebtn-box {
  margin-top: 64px;
}
#main .pop {
  display: none;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
}
#main .pop .content {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 2px solid #b3b3b3;
  padding-top: 30px;
  background-color: #fff;
  background-repeat: no-repeat;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.74);
}
#main .pop .close {
  width: 44px;
  height: 44px;
  position: absolute;
  top: 8px;
  right: 8px;
  cursor: pointer;
}
#main .pop .title {
  font-size: 46px;
  line-height: 80px;
  font-weight: 700;
  text-align: center;
}
#main .pop .title span {
  color: #dd0e0e;
}
#main .pop ul {
  overflow: hidden;
  font-size: 22px;
  line-height: 46px;
  font-weight: 700;
}
#main .pop ul img {
  float: left;
  margin: 8px 6px 0 0;
}
#main .pop ul p {
  float: left;
}
#main .pop li {
  overflow: hidden;
  float: left;
}
#main .pop form {
  margin: 0 auto;
}
#main .pop .item {
  overflow: hidden;
  background: #fff;
  border: 1px solid #4d4d4d;
  border-radius: 4px;
}
#main .pop .icon-box {
  width: 42px;
  float: left;
  text-align: center;
  margin-top: 11px;
}
#main .pop input,
#main .pop select {
  font-size: 14px;
  line-height: 50px;
  color: #999;
  height: 50px;
  background: transparent;
  float: left;
  padding-right: 30px;
}
#main .pop select {
  background: transparent url(../img/form_select_bg1.png) no-repeat;
}
#main .pop .submit {
  margin: 0 auto;
}
#main .pop1 .content {
  width: 688px;
  height: 530px;
  margin: -265px 0 0 -344px;
  background-image: url(../img/pop1_bg.png);
}
#main .pop1 ul {
  margin-left: 96px;
}
#main .pop1 li {
  width: 280px;
}
#main .pop1 form {
  width: 580px;
  margin-top: 12px;
  flex-wrap: wrap;
}
#main .pop1 .item {
  width: 280px;
  display: inline-block;
  margin: 5px;
}
#main .pop1 input,
#main .pop1 select {
  width: 234px;
  padding-left: 10px;
}
#main .pop1 select {
  background-position: 208px center;
}
#main .pop1 .submit {
  margin-top: 26px;
}
#main .pop2 .content {
  width: 604px;
  height: 516px;
  margin: -258px 0 0 -302px;
  background-image: url(../img/pop2_bg.png);
}
#main .pop2 ul {
  margin-left: 72px;
}
#main .pop2 li {
  width: 260px;
}
#main .pop2 form {
  width: 484px;
  margin-top: 14px;
}
#main .pop2 .item {
  margin-bottom: 10px;
}
#main .pop2 input,
#main .pop2 select {
  width: 438px;
}
#main .pop2 select {
  background-position: 412px center;
}
#main .pop2 .submit {
  margin-top: 30px;
}
@font-face {
  font-family: "AlibabaPuHuiTiRegular";
  src: url(https://www.igo.cn/font/Alibaba-PuHuiTi/AlibabaPuHuiTiRegular.ttf);
}
@font-face {
  font-family: "AlibabaPuHuiTiBold";
  src: url(https://www.igo.cn/font/Alibaba-PuHuiTi/Alibaba-PuHuiTi-Bold_0.ttf);
}
@font-face {
  font-family: "AlibabaPuHuiTiMedium";
  src: url(https://www.igo.cn/font/Alibaba-PuHuiTi/Alibaba-PuHuiTi-Medium.ttf);
}
@font-face {
  font-family: "AlibabaPuHuiTiHeavy";
  src: url(https://www.igo.cn/font/Alibaba-PuHuiTi/AlibabaPuHuiTi-Heavy.ttf);
}
@font-face {
  font-family: "AvantiBold";
  src: url(https://www.igo.cn/font/AvantiBold.ttf);
}