.main-fixed-header {
  position: fixed;
  z-index: 100;
  background: #fff;
  box-shadow: 0 0 12px #d8d8d8;
  width: 100%;
  top: -300px;
  transition: 0.4s;
  padding: 30px 40px;
}
.main-fixed-header.on {
  top: 0;
}
.main-fixed-header .img-box img {
  max-width: 160px;
  max-height: 50px;
}
.main-fixed-header .title {
  margin-left: 40px;
  font-weight: bold;
  font-size: 18px;
}
.main-fixed-header .title ul li {
  display: inline-block;
  margin-left: 40px;
  cursor: pointer;
}
.main-fixed-header .title ul li:hover {
  opacity: 0.8;
}
.main-fixed-header .title ul li.active {
  color: #47b749;
}
.main-box .nav-box .img-box img {
  max-width: 180px;
  max-height: 90px;
}
.main-box .nav-box .title {
  margin-left: 40px;
  font-weight: bold;
  font-size: 18px;
}
.main-box .nav-box .title ul li {
  display: inline-block;
  margin-left: 40px;
  cursor: pointer;
}
.main-box .nav-box .title ul li:hover {
  opacity: 0.8;
}
.main-box .nav-box .title ul li.active {
  color: #47b749;
}
.main-box .cover {
  margin: 0 auto;
  margin-top: 20px;
  width: 100%;
  text-align: center;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}
.main-box .cover img {
  width: 100%;
  height: auto;
}
.main-box .title1 {
  font-size: 18px;
  font-weight: bold;
  margin-top: 20px;
  margin-bottom: 10px;
}
.main-box .content p {
  font-size: 16px;
  margin-bottom: 20px;
  line-height: 35px;
}
.main-box .banners .carousel-control.left {
  left: -20px;
}
.main-box .banners .carousel-control.right {
  right: -20px;
}
.main-box .banners .carousel-inner {
  width: calc(100% - 150px);
  margin: auto;
}
.main-box .banners .img-box ._item {
  width: calc(100%/4 - 15px);
  margin-right: 20px;
  margin-top: 20px;
  height: 183px;
}
.main-box .banners .img-box ._item:nth-child(4n) {
  margin-right: 0;
}
.main-box .banners .img-box ._item img {
  width: 100%;
  height: 100%;
}
.main-box .course-box {
  padding: 40px 0;
  padding-bottom: 100px;
}
.main-box .course-box .sec-title {
  font-weight: bold;
  font-size: 20px;
}
.main-box .course-box .cate-box {
  margin-top: 20px;
}
.main-box .course-box .cate-box ul li {
  display: inline-block;
  margin-right: 20px;
}
.main-box .course-box .cate-box ul li a {
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
  color: #999;
}
.main-box .course-box .cate-box ul li.active a {
  color: #47b749;
}
.main-box .course-box .cate-box ul li:hover {
  opacity: 0.8;
}
.main-box .course-box .tab-content .tag-box ul li {
  cursor: pointer;
  color: #777;
  display: inline-block;
  margin-right: 15px;
  padding: 4px 20px;
  border-radius: 25px;
  background: #f0f0f0;
  font-size: 13px;
  font-weight: bold;
  margin-top: 10px;
}
.main-box .course-box .tab-content .tag-box ul li:hover {
  opacity: 0.8;
}
.main-box .course-box .tab-content .tag-box ul li.active {
  background: #47b749;
  color: #fff;
}
.main-box .course-box .tab-content .main-box {
  flex-wrap: wrap;
}
.main-box .course-box .tab-content .main-box .item {
  margin-bottom: 20px;
  margin-top: 10px;
  width: calc(100%/4 - 15px);
  height: 312px;
  box-shadow: 0 0 12px #d8d8d8;
  border-radius: 9px;
  overflow: hidden;
  margin-right: 20px;
}
.main-box .course-box .tab-content .main-box .item:nth-child(4n) {
  margin-right: 0;
}
.main-box .course-box .tab-content .main-box .item .img-box {
  background-repeat: no-repeat;
  background-position: 50%;
  background-size: cover;
  width: 100%;
  height: 160px;
}
.main-box .course-box .tab-content .main-box .item .item-main {
  padding: 10px;
}
.main-box .course-box .tab-content .main-box .item .item-main .item-title {
  font-size: 16px;
  font-weight: bold;
  height: 54px;
  overflow: hidden;
}
.main-box .course-box .tab-content .main-box .item .item-main .item-com {
  margin: 5px 0;
  color: #999;
  height: 46px;
}
.main-box .course-box .tab-content .main-box .item .item-main .item-more {
  font-weight: bold;
}
.main-box .course-box .tab-content .main-box .item .item-main .item-more .item-time {
  opacity: 0.9;
  color: #777;
}
.main-box .course-box .tab-content .main-box .item .item-main .item-more .item-money {
  margin-left: 10px;
  text-align: right;
  color: #47b749;
}
.main-box .course-box .tab-content .main-box .sec-more {
  width: 100%;
  margin-top: 60px;
  text-align: center;
}
.main-box .course-box .tab-content .main-box .sec-more button {
  background: #47b749;
  width: 180px;
  height: 50px;
  color: #fff;
  font-size: 18px;
}
.main-box .course-box .tab-content .main-box .sec-more button:hover {
  opacity: 0.8;
}
.content {
  word-break: break-all;
  white-space: pre-wrap;
}