/*前缀兼容样式 start*/
/*单行省略*/
/*多行省略*/
/*背景线性渐变*/
/*opacity*/
/*gray*/
.gray {
  -webkit-filter: grayscale(100%);
  -moz-filter: grayscale(100%);
  -ms-filter: grayscale(100%);
  -o-filter: grayscale(100%);
  filter: grayscale(100%);
  filter: gray;
}
/*前缀兼容样式 end*/
/* body {
  padding-bottom: 450px !important;
} */
.back-black .footer-nav ul li a {
  box-sizing: content-box;
}
.box-1 {
  width: 100%;
  height: 570px;
  background: url("../img/skyCourse/bg_01.png") center no-repeat;
  background-size: cover;
}
.box-1 .contain {
  width: 1200px;
  padding-top: 205px;
  margin: 0 auto;
}
.box-1 .contain .title {
  font-size: 38px;
  color: #ffffff;
}
.box-1 .contain .text {
  width: 448px;
  text-align: justify;
  font-size: 14px;
  color: #ffffff;
  line-height: 1.5em;
}
.box-1 .contain .jump {
  width: 125px;
  height: 36px;
  margin-top: 40px;
  border-radius: 18px;
  border: solid 1px #ffffff;
  font-size: 13px;
  color: #ffffff;
  text-align: center;
  line-height: 36px;
}
/*面包屑*/
.box-2 .crumbs-container {
  padding: 30px 0;
  font-size: 12px;
  color: #999999;
  border-bottom: 1px solid #dcdcdc;
}
.box-2 .crumbs-container .label {
  padding-right: 5px;
}
.box-2 .crumbs-container .value .item {
  float: left;
  padding: 0 5px;
}
.box-2 .crumbs-container .value .item a {
  color: #999999;
}
.box-2 .crumbs-container .value .item.active {
  color: #333;
}
.box .box-title {
  font-size: 30px;
  color: #000000;
  text-align: center;
  font-weight: bold;
}
.box .box-text {
  font-size: 14px;
  color: #666666;
  text-align: center;
}
.box .contain {
  width: 1200px;
  margin: 0 auto;
}
.box-3 {
  padding-top: 70px;
  padding-bottom: 70px;
}
.box-3 .contain .list-3 {
  font-size: 0;
  margin: 90px -10px 0;
}
.box-3 .contain .list-3 .item {
  cursor: pointer;
  margin: 0 10px;
  display: inline-block;
  vertical-align: middle;
  width: 276px;
  height: 210px;
  background-color: #ffffff;
  border-radius: 6px;
  border: solid 1px #e5e5e5;
  position: relative;
  padding-top: 80px;
  transition: all 0.5s;
}
.box-3 .contain .list-3 .item:hover {
  transition: all 0.3s;
  box-shadow: 0px 0px 20px 0px rgba(83, 130, 255, 0.2);
  transform: scale(1.04);
}
.box-3 .contain .list-3 .item img {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
}
.box-3 .contain .list-3 .item .title,
.box-3 .contain .list-3 .item .text {
  text-align: center;
  padding: 0 25px;
}
.box-3 .contain .list-3 .item .title {
  color: #333333;
  font-size: 18px;
  font-weight: bold;
  color: #1a1a1a;
  position: relative;
  margin-bottom: 16px;
}
.box-3 .contain .list-3 .item .text {
  text-align: justify;
  font-size: 14px;
  color: #4d4d4d;
  text-align: center;
}
.box-3 .contain .list-4 {
  margin-top: 30px;
}
.box-3 .contain .list-4 .item {
  cursor: pointer;
  width: 236px;
  height: 290px;
  display: inline-block;
}
.box-3 .contain .list-4 .item:hover {
  box-shadow: 0px 0px 20px 0px rgba(56, 116, 244, 0.1);
}
.box-3 .contain .list-4 .item .icon {
  width: 84px;
  height: 84px;
  display: block;
  margin: 0 auto;
  background-color: #fff;
  background-size: cover;
  background-repeat: no-repeat;
}
.box-3 .contain .list-4 .item .title,
.box-3 .contain .list-4 .item .text {
  text-align: center;
  padding: 0 25px;
}
.box-3 .contain .list-4 .item .title {
  margin: 24px 0 26px;
  color: #333333;
  font-weight: bold;
  font-size: 26px;
  color: #1a1a1a;
  position: relative;
  margin-bottom: 46px;
}
.box-3 .contain .list-4 .item .text {
  text-align: justify;
  font-size: 14px;
  color: #4d4d4d;
  text-align: center;
}
.box-4 {
  width: 100%;
  background-color: #f1f1f1;
  padding-top: 70px;
  padding-bottom: 60px;
  text-align: center;
}
.box-4 .contain {
  width: 1200px;
  margin: 0 auto;
  margin-top: 50px;
  display: block;
}
.box-4 .contain-img {
  display: block;
  margin: 0 auto;
  margin-top: 54px;
  width: auto;
}
.box-4 .contain-img.list {
  background: url('../img/skyCourse/bg_04.png') no-repeat center / cover;
  width: 1200px;
}
.box-4 .contain-img.list .list {
  padding: 40px;
  width: 780px;
}
.box-4 .contain-img.list .list .item {
  cursor: pointer;
  float: left;
  margin-right: 30px;
  margin-bottom: 20px;
  width: 314px;
}
.box-4 .contain-img.list .list .item:hover .question {
  transition: all 0.5s;
  box-shadow: 0px 5px 30px 0px rgba(56, 116, 244, 0.2);
}
.box-4 .contain-img.list .list .item:hover .answer {
  transition: all 0.5s;
  box-shadow: 0px 5px 30px 0px rgba(56, 116, 244, 0.2);
}
.box-4 .contain-img.list .list .item .question {
  transition: all 0.5s;
  padding: 0 20px;
  width: 100%;
  height: 54px;
  font-size: 18px;
  font-weight: 500;
  line-height: 54px;
  color: #ffffff;
  background-color: #6189ea;
  box-shadow: 0px 5px 30px 0px rgba(56, 116, 244, 0.2);
}
.box-4 .contain-img.list .list .item .answer {
  transition: all 0.5s;
  position: relative;
  padding: 16px;
  margin-left: 22px;
  margin-top: 16px;
  width: 292px;
  height: 77px;
  font-size: 13px;
  font-weight: 400;
  line-height: 24px;
  letter-spacing: 0px;
  color: #4d4d4d;
  background: #fff;
}
.box-4 .contain-img.list .list .item .answer:after {
  position: absolute;
  top: 0;
  left: 20px;
  display: block;
  content: '';
  width: 16px;
  height: 16px;
  background: #fff;
  -webkit-transform: translateY(-50%) rotate(45deg);
  -moz-transform: translateY(-50%) rotate(45deg);
  -ms-transform: translateY(-50%) rotate(45deg);
  -o-transform: translateY(-50%) rotate(45deg);
  transform: translateY(-50%) rotate(45deg);
}
.box-4 .position-box {
  display: inline-block;
}
.box-4 .position-box .item {
  text-align: left;
  padding: 16px 22px 16px 70px;
  position: absolute;
  background-size: contain;
  background-position: 0 0;
  background-repeat: no-repeat;
  cursor: pointer;
  transition: all 0.5s;
  background-color: #ffffff;
  border-radius: 2px;
  border: solid 1px #cccccc;
}
.box-4 .position-box .item:hover {
  transition: all 0.5s;
  box-shadow: 0px 0px 30px 0px rgba(97, 137, 234, 0.26);
  transform: scale(1.01);
}
.box-4 .position-box .item .tag {
  position: absolute;
  top: -20px;
  left: 18px;
}
.box-4 .position-box .item .title {
  font-size: 18px;
  color: #1a1a1a;
  margin-bottom: 10px;
}
.box-4 .position-box .item .content {
  width: 278px;
  font-size: 14px;
  color: #4d4d4d;
}
.box-4 .position-box .item1 {
  right: 404px;
  top: 82px;
  height: 120px;
}
.box-4 .position-box .item2 {
  height: 120px;
  top: 104px;
  left: 450px;
}
.box-4 .position-box .item3 {
  height: 130px;
  right: 515px;
  top: 250px;
}
.box-4 .position-box .item4 {
  height: 153px;
  left: 520px;
  top: 280px;
}
.box-4 .img-wrap {
  width: 1200px;
  margin: 0 auto;
  margin-top: 50px;
  padding: 0 64px;
}
.box-4 .img-wrap img {
  width: 278px;
  margin-right: 115px;
}
.box-4 .img-wrap img:last-child {
  margin-right: 0;
}
.box-5 {
  padding-top: 60px;
  padding-bottom: 68px;
  background-color: #f1f1f1;
}
.box-5 .contain .list-5 {
  margin-top: 54px;
}
.box-5 .contain .list-5 .item {
  width: 392px;
  height: 132px;
  display: inline-block;
  cursor: pointer;
  position: relative;
  padding-left: 26px;
  padding-top: 25px;
  margin-right: 8px;
  margin-bottom: 20px;
  transition: all 0.5s;
}
.box-5 .contain .list-5 .item:nth-child(3n) {
  margin-right: 0;
}
.box-5 .contain .list-5 .item:hover {
  background-color: #fff;
  transition: all 0.5s;
  box-shadow: 0px 0px 16px 0px rgba(76, 142, 255, 0.16);
}
.box-5 .contain .list-5 .item:hover::after {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 46px;
  height: 2px;
  background-color: #4d8afe;
  transition: all 0.5s;
}
.box-5 .contain .list-5 .item .item-right {
  float: left;
}
.box-5 .contain .list-5 .item .item-left {
  float: left;
  width: 300px;
  height: 158px;
  padding-left: 16px;
}
.box-5 .contain .list-5 .item .item-left .title {
  font-size: 20px;
  color: #666666;
  font-weight: bold;
  margin-bottom: 10px;
}
.box-5 .contain .list-5 .item .item-left .content {
  font-size: 14px;
  color: #666666;
}
.box-5 .contain .list-6 {
  margin-top: 54px;
}
.box-5 .contain .list-6 .item {
  display: inline-block;
  width: 278px;
  height: 278px;
  background-color: #000000;
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  margin-bottom: 30px;
}
.box-5 .contain .list-6 .item:not(:nth-child(4n)) {
  margin-right: 25px;
}
.box-5 .contain .list-6 .item:hover .item-bg {
  transition: all 0.5s;
  width: 298px;
  height: 298px;
}
.box-5 .contain .list-6 .item .item-bg {
  z-index: 0;
  object-fit: cover;
  width: 278px;
  height: 278px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s;
}
.box-5 .contain .list-6 .item .item-title {
  position: relative;
  z-index: 1;
  margin-top: 222px;
  font-size: 24px;
  color: #ffffff;
  text-align: center;
}
.box-6 {
  width: 100%;
  background-image: url('../img/skyCourse/bg_05.png');
  position: relative;
}
.box-6 img {
  width: 100%;
}
.box-6 .btn {
  cursor: pointer;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 140px;
  width: 150px;
  height: 38px;
  border-radius: 19px;
  border: solid 1px #ffffff;
  line-height: 38px;
  font-size: 16px;
  color: #ffffff;
  text-align: center;
}
.box-7 {
  padding-top: 60px;
  padding-bottom: 80px;
}
.box-7 .list {
  margin-top: 28px;
}
.box-7 .list .item {
  position: relative;
  float: left;
  cursor: pointer;
  margin-right: 65px;
}
.box-7 .list .item:nth-child(5n) {
  margin-right: 0;
}
.box-7 .list .item img {
  position: relative;
  z-index: 2;
}
.box-7 .list .item .name {
  position: relative;
  margin-top: 10px;
  font-size: 20px;
  color: #000000;
  text-align: center;
  z-index: 2;
}
.box-7 .list .item:after {
  display: block;
  content: '';
  position: absolute;
  left: 50%;
  top: 100px;
  width: 140px;
  height: 188px;
  background-image: linear-gradient(180deg, #c3e8ff 0%, rgba(183, 191, 255, 0) 100%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  z-index: 1;
  opacity: 0;
  transition: all 0.5s;
}
.box-7 .list .item:hover:after {
  transition: all 0.5s;
  opacity: 1;
}
.box-8 {
  padding-top: 60px;
  padding-bottom: 80px;
}
.box-8 .tabs {
  margin: 0 auto;
  margin-top: 54px;
  width: 1200px;
  padding: 0 70px;
  border-bottom: 1px solid #e6e6e6;
}
.box-8 .tabs .tab {
  float: left;
  width: 126px;
  height: 50px;
  font-size: 16px;
  color: #000000;
  text-align: center;
  line-height: 50px;
  cursor: pointer;
}
.box-8 .tabs .tab:not(:last-child) {
  margin-right: 28px;
}
.box-8 .tabs .tab.active {
  border-bottom: 3px solid #4d8afe;
}
.box-8 .content-list {
  position: relative;
  width: 1200px;
  margin: 0 auto;
  height: 344px;
}
.box-8 .content-list .item {
  position: absolute;
  top: 0;
  left: 0;
  padding-top: 40px;
  padding-left: 70px;
  display: none;
}
.box-8 .content-list .item .item-left {
  float: left;
  width: 528px;
  margin-right: 176px;
}
.box-8 .content-list .item .item-left .title {
  font-size: 20px;
  color: #666666;
  margin-bottom: 28px;
}
.box-8 .content-list .item .item-left .content {
  font-size: 16px;
  height: 44px;
  color: #666666;
  margin-bottom: 30px;
}
.box-8 .content-list .item .item-left .img-wrap {
  margin-bottom: 30px;
}
.box-8 .content-list .item .item-left .btn-wrap .left {
  float: left;
  width: 162px;
  height: 40px;
  background-color: #4d8afe;
  border-radius: 4px;
  font-size: 14px;
  color: #ffffff;
  line-height: 40px;
  text-align: center;
  margin-right: 16px;
}
.box-8 .content-list .item .item-left .btn-wrap .right {
  float: left;
  width: 104px;
  height: 40px;
  border-radius: 4px;
  border: solid 1px #4d8afe;
  line-height: 38px;
  text-align: center;
  font-size: 14px;
  color: #4d8afe;
}
.box-8 .content-list .item .item-right {
  float: left;
  margin-top: 50px;
}
.box-8 .content-list .item:first-child {
  display: block;
}
/* 中文提示 */
.zh {
  margin-top: 30px;
  margin-bottom: 54px;
  font-size: 16px;
  color: #1a1a1a;
  text-align: center;
}
.grey {
  background-color: #f7f8fc !important;
}
.white {
  background-color: #fff !important;
}