.header {
  background: #fff;
  line-height: 90px;
  height: 90px;
}
.logo {
  background: url(../img/head/logo.png) no-repeat;
  width: 149px;
  height: 40px;
  margin-top: 23px;
  margin-right: 20px;
  float: left;
}
.logs {
  background: url("http://ksmooc-10053130.cos.myqcloud.com/h5/logos.png") no-repeat;
  width: 40px;
  height: 40px;
  margin-top: 23px;
  margin-left: 20px;
  margin-right: 10px;
  float: left;
}
.list {
  float: left;
}
.list li {
  float: left;
}
.list li a {
  color: #494949;
  font-size: 18px;
  height: 90px;
  line-height: 90px;
  padding: 0 20px;
  text-align: center;
  display: inline-block;
  transition: background-color 0.3s;
}
.list li a:hover {
  color: #fff;
  background: #2a9da0;
}
.list li .active {
  color: #2eafb3;
}
.list li .active a {
  color: #2eafb3;
}
.mr50 {
  margin-left: 50px;
}
.right_logo {
  float: right;
  height: 90px;
  line-height: 90px;
  position: relative;
}
.right_logo i {
  cursor: pointer;
}
.right_logo .ico_look,
.right_logo .ico_notifi,
.right_logo .ico_appdown,
.right_logo .ico_look,
.right_logo .ico_searchBtn {
  background: url("../img/head/ico-search.png") no-repeat;
  display: inline-block;
  vertical-align: middle;
}
.right_logo .ico_look {
  width: 21px;
  height: 21px;
}
.right_logo .ico_appdown {
  width: 16px;
  height: 21px;
  background-position: -21px 0;
  *margin-top: 37px;
}
.right_logo .ico_notifi {
  width: 16px;
  height: 21px;
  background-position: -42px 0;
  *zoom: 1;
  *display: inline;
  *margin-top: 38px;
}
.list_login {
  float: right;
  position: absolute;
  top: 0;
  right: 0;
  z-index: 9999;
  width: 200px;
}
.list_login li {
  float: left;
  width: 60px;
  text-align: center;
  position: relative;
}
.list_login li a {
  display: block;
  *display: table-cell;
}
.list_login li .nav_register,
.list_login li .nav_login {
  font-size: 16px;
}
.list_login li .nav_login:hover {
  background: #2a9da0;
  color: #fff;
}
.search_btn {
  position: absolute;
  right: 198px;
}
.search-input {
  float: right;
  position: relative;
  height: 38px;
  line-height: 38px;
  width: 150px;
  margin: 10px 0;
  padding-right: 30px;
  border-bottom: 1px solid #000;
  border: none;
  outline: none;
  padding-left: 100px;
  border-radius: 20px;
  zoom: 1;
  transition: width 0.3s;
  background: #f6f6f6;
}
.search_area {
  float: left;
  position: relative;
  left: -173px;
  top: 17px;
}
.f23 {
  font-size: 23px !important;
}
.kecheng {
  position: absolute;
  top: -15px;
  left: 28px;
  z-index: 9;
  color: #7c7b7b;
  cursor: pointer;
}
.sea {
  color: #70c6c9;
}
.kecheng_li {
  position: absolute;
  top: 40px;
  left: 5px;
  z-index: 9999;
  background: #f6f6f6;
  width: 100px;
  text-align: center;
  height: 92px;
  border-radius: 10px;
  cursor: pointer;
  display: none;
}
.kecheng_li .kecheng_lis {
  margin-top: -22px;
  display: inline-block;
}
.kecheng_li a {
  margin: 0;
  padding: 0;
  height: 25px;
  display: block;
  color: #7c7b7b;
}
.notices_on {
  width: 6px;
  height: 6px;
  background: #c81015;
  border-radius: 5px;
  display: inline-block;
  *display: inline;
  position: absolute;
  top: 34px;
  *zoom: 1;
}
.notice-number {
  position: absolute;
  top: -7px;
  color: #fff;
  z-index: 1;
  right: 11px;
  text-align: center;
  width: 13px;
}
.notices_on {
  width: 18px;
  height: 18px;
  top: 30px;
  right: 9px;
  border-radius: 50%;
}
.g-user-card {
  position: absolute;
  right: -36px;
  top: 88%;
  width: 293px;
  border-top: 1px solid #cdcccc;
  border-left: 1px solid #cdcccc;
  border-right: 1px solid #cdcccc;
  padding-top: 10px;
  visibility: hidden;
  z-index: 1000;
}
.g-user-card .card-top {
  background: #fff;
  height: 34px;
  border-bottom: 1px solid #ccc;
}
.g-user-card .card-top li {
  height: 30px;
  line-height: 24px;
  width: 97px;
  cursor: pointer;
  position: relative;
}
.g-user-card .card-top li .notice-number {
  position: absolute;
  top: -7px;
  color: #fff;
  z-index: 1;
  right: 14px;
}
.g-user-card .card-top li .notices_on {
  width: 18px;
  height: 18px;
  top: 30px;
  right: 9px;
  border-radius: 50%;
}
.g-user-card .card-top .selected {
  color: #2eafb3;
  border-bottom: 2px solid #2eafb3;
  padding-bottom: 2px;
  position: relative;
  padding: 0 15px 12px 15px;
  font-size: 13px;
}
.g-user-card .card-top .selected::before {
  content: '';
  position: absolute;
  top: 25px;
  left: 41%;
  border-bottom: 6px solid #2eafb3;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
}
.g-user-card .divfs {
  background: #fff;
  text-align: left;
  line-height: 19px;
  position: relative;
  border-bottom: 1px solid #ccc;
}
.g-user-card .divfs a {
  display: inline;
}
.g-user-card .divfs .rb p,
.g-user-card .divfs .ri p {
  padding: 4px 16px;
}
.g-user-card .divfs .rb .gray,
.g-user-card .divfs .ri .gray {
  color: #aaaaaa;
}
.g-user-card .divfs .rb .no,
.g-user-card .divfs .ri .no {
  text-align: center;
  color: #aaa;
  min-height: 90px;
}
.g-user-card .divfs .ri {
  padding: 5px 10px 35px 10px;
  min-height: 98px;
}
.g-user-card .divfs .rb {
  margin-top: 20px;
  overflow: hidden;
  position: absolute;
  right: 0;
  bottom: 0;
}
.g-user-card .divfs .normal {
  color: #2a9da0;
}
.g-user-card .card-arr {
  position: absolute;
  top: -11px;
  right: 74px;
}
.g-user-card .card-arr:before {
  content: '';
  position: absolute;
  top: 1px;
  left: 0;
  border-bottom: 10px solid #cdcccc;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
}
.g-user-card .card-arr:after {
  content: '';
  position: absolute;
  left: 2px;
  top: 3px;
  border-bottom: 8px solid #fff;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
}
.user-card-box:hover .g-user-card {
  visibility: visible;
}
@media screen and (min-width: 1366px) {
  .search-input {
    width: 250px;
  }
}
.per-user .per-show {
  display: none;
  position: absolute;
  right: -36px;
  top: 88%;
  width: 146px;
  height: 257px;
  border: 1px solid #cdcccc;
  padding-top: 10px;
  z-index: 1000;
  background: #fff;
}
.per-user .per-show::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 74px;
  border-bottom: 10px solid #cdcccc;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
}
.per-user .per-show::after {
  content: '';
  position: absolute;
  left: 76px;
  top: -8px;
  border-bottom: 8px solid #fff;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
}
.per-user .per-show dl {
  padding: 0;
  margin: 0;
  font-size: 16px;
  padding: 0 4px;
}
.per-user .per-show dl .per-top {
  border-top: 1px solid #cdcccc;
}
.per-user .per-show dl .per-13 {
  font-size: 13px;
}
.per-user .per-show dl .per-13 a {
  color: #807f86;
}
.per-user .per-show dl dt,
.per-user .per-show dl dd {
  margin: 0;
  padding: 0;
  text-align: left;
  padding-bottom: 5px;
}
.per-user .per-show dl dt:hover,
.per-user .per-show dl dd:hover {
  background: #f6f6f6;
}
.per-user .per-show dl dt a:hover {
  color: #2eafb3;
}
.per-user .per-show dl a {
  display: block;
  line-height: 31px;
  height: 30px;
  margin-left: 14px;
}
.per-code {
  position: relative;
  margin-left: 20px;
}
.per-code:hover .per-code-so {
  display: block;
}
.per-code-so {
  position: absolute;
  border: 1px solid #cdcccc;
  width: 147px;
  height: 160px;
  background: #fff;
  top: 79px;
  z-index: 9;
  left: -54px;
  display: none;
}
.per-code-so::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 74px;
  border-bottom: 10px solid #cdcccc;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
}
.per-code-so::after {
  content: '';
  position: absolute;
  left: 76px;
  top: -8px;
  border-bottom: 8px solid #fff;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
}
.per-code-so .qr_code {
  margin-top: 13px;
  width: 135px;
  height: 135px;
  margin-left: 5px;
}
.label-a,
.label-b,
.label-c,
.label-d,
.label-e,
.label-f {
  width: 55px;
  display: inline-block;
  text-align: right;
}
.label-a {
  color: #ff8787 !important;
  font-size: 13px !important;
}
.label-b {
  color: #afc659 !important;
  font-size: 13px !important;
}
.label-c {
  color: #fb9c6c !important;
  font-size: 13px !important;
}
.label-d {
  color: #6ccbd6 !important;
  font-size: 13px !important;
}
.label-e {
  color: #977ce4 !important;
  font-size: 13px !important;
}
.label-f {
  color: #6e97e0 !important;
  font-size: 13px !important;
}
.hei {
  color: #000 !important;
}
.carouselWrap {
  width: 100%;
  height: 350px;
  position: relative;
  overflow: hidden;
}
@media screen and (min-width: 1280px) and (max-width: 1560px) {
  /*当屏幕尺寸小于600px时，应用下面的CSS样式*/
  .carouselWrap {
    width: 100%;
    height: 247px;
    position: relative;
    overflow: hidden;
  }
}
@media screen and (min-width: 800px) and (max-width: 1280px) {
  /*当屏幕尺寸小于600px时，应用下面的CSS样式*/
  .carouselWrap {
    width: 100%;
    height: 215px;
    position: relative;
    overflow: hidden;
  }
}
.carouselPrev,
.carouselNext {
  display: none;
  position: absolute;
  z-index: 2;
  top: 50%;
  margin-top: -50px;
  color: #fff;
  font-size: 80px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.35s ease-in-out;
}
.carouselPrev {
  left: 0;
  padding-right: 5px;
}
.carouselNext {
  right: 0;
  padding-left: 5px;
}
.carouselPrev:hover,
.carouselNext:hover {
  background: #ccc;
  background: rgba(204, 204, 204, 0.4);
}
.carouselContent li {
  position: absolute;
  left: 0;
  top: 0;
  text-align: center;
}
.carouselContent li img {
  width: 100%;
  height: auto;
}
.carouselList {
  position: absolute;
  bottom: 10px;
  text-align: center;
  width: 100%;
}
.carouselList span {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #d7d7d7;
  margin-right: 5px;
  cursor: pointer;
}
.carouselList .checked {
  background: #2f9c9c;
}
.footer {
  height: 95px;
  border-top: 1px solid #d2d2d2;
}
.footer .friends {
  height: 106px;
  line-height: 106px;
  margin: 0 auto;
}
.copyright {
  background: #eee;
  text-align: center;
  overflow: hidden;
  width: 100%;
}
.about {
  overflow: hidden;
  line-height: 60px;
  padding: 0 300px;
}
.about li {
  float: left;
  width: 150px;
}
.right-fixed {
  position: fixed;
  right: 4%;
  top: 69%;
  display: none;
}
.right-fixed li {
  width: 50px;
  height: 50px;
  background: #2a9da0;
  margin-bottom: 10px;
  border-radius: 5px;
  text-align: center;
}
.right-fixed li i {
  color: #fff;
  padding-top: 6px;
  font-size: 24px;
  display: block;
  position: relative;
}
.right-fixed li .collects:hover::after {
  content: "返回顶部";
  display: block;
  border-radius: 5px;
  background: #2a9da0;
  position: absolute;
  top: 0;
  font-size: 14px;
  height: 42px;
  cursor: pointer;
  width: 40px;
  padding: 4px 5px;
}
.rl-modal {
  background: #fff;
  z-index: 100000;
  width: 440px;
  padding-bottom: 30px;
  left: 50%;
  top: 50%;
  display: none;
  margin: 0 auto;
  margin-top: 180px;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.25);
  transition: all 0.2s;
  -webkit-transition: all 0.2s;
  -moz-transition: all 0.2s;
  -o-transition: all 0.2s;
}
.rl-modal .login_s {
  padding: 32px 65px 10px 65px;
}
.rl-modal #loading {
  position: relative;
}
.rl-modal .as {
  color: #2a9da0;
}
.rl-modal .login_head {
  font-size: 20px;
  width: 100%;
  height: 40px;
  line-height: 40px;
  margin-bottom: 15px;
}
.rl-modal .login_head em {
  display: inline-block;
  float: left;
}
.rl-modal .login_head span {
  font-size: 14px;
  display: inline-block;
  float: right;
  vertical-align: bottom;
}
.rl-modal .login_mas {
  position: relative;
  margin-bottom: 22px;
}
.rl-modal .login_mas .login_input {
  border: 1px solid #ccc;
  width: 259px;
  height: 36px;
  padding-left: 10px;
  outline: none;
  margin-left: 38px;
  font-size: 16px;
}
.rl-modal .login_mas .sai {
  position: absolute;
  top: 0;
  border: 1px solid #ccc;
  height: 38px;
}
.rl-modal .login_psf {
  line-height: 1em;
  margin-bottom: 20px;
}
.rl-modal .auto-cbx {
  margin-right: 10px;
  vertical-align: -2px;
}
.rl-modal .login_btn {
  background: #2a9da0;
  width: 310px;
  height: 40px;
  line-height: 40px;
  color: #fff;
  text-align: center;
  border: none;
  font-size: 18px;
}
.rl-modal .fsfa {
  margin-top: 10px;
  display: inline-block;
}
.icon-login {
  background: url("../img/login/login.gif") no-repeat;
  width: 38px;
  height: 38px;
  display: inline-block;
}
.icon-password {
  background: url("../img/login/password.png") no-repeat;
  width: 38px;
  height: 38px;
  display: inline-block;
}
.modal-backdrop {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1040;
  background-color: #000;
  display: none;
}
.modal-backdrop,
.modal-backdrop.fade.in {
  opacity: 0.75;
  filter: alpha(opacity=75);
}
.l {
  float: left;
}
.r {
  float: right;
}
.user_rigs {
  position: absolute;
  top: 40px;
  color: #f01400;
  display: none;
  margin-top: 7px;
}
.ipt-verify {
  margin-right: 10px;
  width: 120px;
  height: 36px;
  line-height: 36px;
  padding-left: 9px;
  background-image: none;
  display: inline-block;
  outline: none;
  border: 1px solid #ccc;
}
.ipt-verify:focus {
  border: 1px solid #ddd;
}
.verify-img {
  width: 70px;
  height: 40px;
  vertical-align: top;
}
.verify-img-wrap {
  height: 40px;
  width: 70px;
}
.js-verify-refresh {
  color: #b1b0b0;
  vertical-align: bottom;
}
@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
  .rl-modal .login_mas .login_input {
    border: 1px solid #ccc;
    width: 259px;
    height: 30px;
    padding-left: 10px;
    outline: none;
    margin-left: 38px;
    font-size: 16px;
  }
}
body {
  font-family: "PingFang SC", "Helvetica Neue", "Hiragino Sans GB", "Segoe UI", "Microsoft YaHei", "微软雅黑", sans-serif;
}
.container {
  margin: 0 auto;
  width: 1200px;
  width: 1350px\9;
  clear: both;
}
.index_img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
}
.wrapper_s4 {
  margin: 0 auto;
  width: 1200px;
  width: 1350px\9;
  margin-top: 44px;
  height: 350px;
}
.wrapper_s4 li {
  float: left;
  display: inline-block;
  margin-right: 52px;
  box-shadow: 2px 2px 28px 1px rgba(0, 0, 0, 0.2);
}
.wrapper_s4 li:last-child {
  margin-right: 0;
}
.video_wrap {
  overflow: hidden;
  height: 400px;
}
.video_t {
  float: left;
  display: inline-block;
  position: relative;
  top: 87px;
  width: 600px;
  left: 88px;
}
.video_res {
  float: left;
  display: inline-block;
  position: relative;
}
.video_res .light {
  position: absolute;
  top: 161px;
  z-index: 99;
  left: -70px;
}
.video_res .light_star {
  position: absolute;
  top: 10px;
}
.bg6,
.bg2,
.bg4 {
  background: #f6f9fb;
  overflow: hidden;
}
.book_control2 {
  margin-left: 50px;
}
.small_study2,
.small_study {
  color: #2a9da0;
  font-size: 24px;
  margin-top: 40px;
  position: relative;
  top: 9px;
  overflow: hidden;
}
.small_study2 span,
.small_study span {
  font-size: 13px;
  color: #aaacae;
}
.small_study2 {
  top: 40px;
}
.row {
  margin: 0 -40px;
}
.intelliGence {
  overflow: hidden;
}
.intelliGence li {
  width: 238px;
  height: 210px;
  border: 1px solid #cec6c9;
  float: left;
  margin: 40px 79px 40px 0;
}
.intelliGence li:last-child {
  margin-right: 0;
}
.intelliGence .intell_img {
  width: 238px;
  height: 139px;
  position: relative;
  overflow: hidden;
}
.intelliGence .intell_img img {
  width: 100%;
  height: 100%;
}
.intelliGence .intell_title {
  height: 36px;
  line-height: 36px;
  padding: 0 8px;
  font-size: 14px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.intelliGence .intell_state {
  line-height: 30px;
  padding: 0 8px;
}
.intelliGence .intell_state span {
  width: 70px;
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.intelliGence .intell_state span i {
  font-size: 12px;
  color: #b2b2b2;
}
.ico-note,
.ico-zan,
.ico-chat,
.ico-star,
.ico-state {
  background: url(../img/state_01.png) no-repeat;
  display: inline-block;
  margin: 0 5px;
}
.ico-note {
  width: 9px;
  height: 11px;
  background-position: 0 -14px;
}
.ico-star {
  width: 8px;
  height: 11px;
}
.ico-chat {
  width: 11px;
  height: 11px;
  background-position: -16px 0;
}
.ico-zan {
  width: 11px;
  height: 11px;
  background-position: -35px 0;
}
.alongBook {
  border: 1px solid #2a9da0;
  font-size: 14px;
  width: 108px;
  height: 34px;
  line-height: 34px;
  border-radius: 15px;
  text-align: center;
  color: #2a9da0;
  display: inline-block;
}
.alongBook:hover {
  background: #2a9da0;
  color: #fff;
}
.alongBook2 {
  color: #2a9da0;
  border: 1px solid #2a9da0;
  font-size: 14px;
  width: 131px;
  height: 35px;
  line-height: 34px;
  border-radius: 15px;
  text-align: center;
  display: inline-block;
}
.alongBook2:hover {
  background: #2a9da0;
  color: #fff;
}
.imoon_book2,
.imoon_book {
  height: 40px;
  width: 1200px;
  text-align: center;
}
.imoon_book2 {
  height: 100px;
}
.an_area {
  position: relative;
  left: 40px;
}
.parent_box {
  overflow: hidden;
  margin-top: 25px;
}
.parent_box .parent_top {
  width: 171px;
  height: 199px;
  border: 1px solid #e7e7e7;
  margin: 40px;
  float: left;
  display: inline-block;
  position: relative;
  background: #fff;
}
.parent_bg {
  height: 71px;
  background: url(../img/bg1_03.png) no-repeat;
  width: 171px;
}
.No1 {
  height: 0;
  width: 0;
  border: 34px solid #e5c3b2;
  border-color: #e5c3b2 transparent transparent #e5c3b2;
  display: inline-block;
  position: relative;
}
.No1 .parent_num {
  color: #fff;
  position: absolute;
  top: -29px;
  left: -28px;
}
.Nored {
  border-color: #ed3a3a transparent transparent #ed3a3a;
}
.Nocheng {
  border-color: #f98050 transparent transparent #f98050;
}
.Noblue {
  border-color: #85d0dd transparent transparent #85d0dd;
}
.parent_img {
  width: 77px;
  height: 77px;
  border: 5px solid #fff;
  border-radius: 50%;
  position: absolute;
  top: 30px;
  left: 40px;
  overflow: hidden;
}
.parent_img img {
  width: 100%;
  height: 100%;
}
.parent_name {
  position: relative;
  top: 48px;
  left: 50px;
  height: 21px;
  text-align: center;
  width: 76px;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.parent_intergal {
  position: relative;
  top: 50px;
  width: 100px;
  text-align: center;
  left: 33px;
  color: #aaacae;
}
.parent_speak {
  position: relative;
  top: 50px;
  text-align: center;
  width: 100%;
  margin: 0 5px;
  padding: 0 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-sizing: border-box;
}
.img {
  width: 100%;
}
.startBtn {
  background: #2a9da0;
  font-size: 36px;
  width: 335px;
  height: 90px;
  line-height: 90px;
  border-radius: 50px;
  text-align: center;
  color: #fff;
  display: inline-block;
}
.bg5 {
  overflow: hidden;
}
.center {
  text-align: center;
}
.bg6 {
  height: 350px;
  text-align: center;
  line-height: 350px;
}
.ico_f5 {
  background: url(../img/f5_06.png) no-repeat;
  width: 10px;
  height: 12px;
  display: inline-block;
  margin: 0 5px;
}
.ico_money {
  background: url(../img/money.png) no-repeat;
  width: 11px;
  height: 13px;
  display: inline-block;
  margin: 0 5px;
}
.an_panel {
  position: relative;
  top: 122px;
}
.an_bg4 {
  position: relative;
  top: -91px;
}
.bg3 {
  height: 498px;
  overflow: hidden;
}
.target {
  display: inline-block;
  margin-right: 10px;
}
.normal {
  color: #2a9da0 !important;
}
.right-fixed {
  position: fixed;
  right: 4%;
  top: 69%;
  display: none;
}
.right-fixed li {
  width: 50px;
  height: 50px;
  background: #2a9da0;
  margin-bottom: 10px;
  border-radius: 5px;
  text-align: center;
}
.right-fixed li i {
  color: #fff;
  padding-top: 6px;
  font-size: 24px;
  display: block;
  position: relative;
}
.right-fixed li .collects:hover::after {
  content: "返回顶部";
  display: block;
  border-radius: 5px;
  background: #2a9da0;
  position: absolute;
  top: 0;
  font-size: 14px;
  height: 42px;
  cursor: pointer;
  width: 40px;
  padding: 4px 5px;
}