body {
  background: #f9f9f9;
}
.crumbs {
  margin-top: 30px;
  font-size: 12px;
  color: #999;
}
.crumbs a {
  color: #999;
}
.crumbs a:hover {
  color: #00a8d4;
}
.main-body {
  margin-bottom: 100px;
}
.main-body .crumbs {
  background-color: transparent;
}
.banner {
  border: 1px #e3e3e3 solid;
  border-radius: 2px;
  margin-top: 20px;
  padding: 20px 30px 40px 20px;
  display: flex;
  color: #999999;
  background-color: white;
}
.banner .banner-l {
  flex: 1;
}
.banner .banner-l .l-head {
  display: flex;
}
.banner .banner-l .l-head div:nth-child(1) {
  width: 70px;
  height: 70px;
  margin-right: 12px;
}
.banner .banner-l .l-head .head-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.banner .banner-l .l-head .head-text p:nth-child(1) {
  font-size: 20px;
  font-weight: bold;
  color: #000;
  margin-bottom: 4px;
}
.banner .banner-l .l-head .head-text p:nth-child(2) {
  font-size: 14px;
}
.banner .banner-l .l-m {
  margin-top: 30px;
  display: flex;
}
.banner .banner-l .l-m .m-item {
  flex: 1;
  color: #666;
}
.banner .banner-l .l-m .m-item p:nth-child(1) {
  margin-bottom: 12px;
}
.banner .banner-l .l-b {
  margin-top: 40px;
}
.banner .banner-l .l-b .btn-item {
  font-size: 18px;
  height: 45px;
  width: 152px;
  border-width: 2px;
  margin-right: 18px;
  margin-top: 10px;
}
.banner .banner-l .l-b .btn-item i {
  font-size: 20px;
  margin-right: 12px;
}
.banner .banner-r {
  width: 285px;
  padding-top: 40px;
}
.banner .banner-r img {
  height: 160px;
}
.banner .banner-r p {
  text-align: center;
  font-size: 12px;
  margin-top: 10px;
}
.middle-box {
  zoom: 1;
}
.middle-box:after {
  clear: both;
  content: "\20";
  display: block;
  height: 0;
  line-height: 0;
  overflow: hidden;
}
.middle-box .content-l {
  width: calc(100% - 360px);
  float: left;
}
.middle-box .content-l > div {
  border: 1px solid #e8e8e8;
  border-radius: 2px;
}
.middle-box .content-r {
  float: left;
  margin-left: 20px;
  width: 340px;
}
.middle-box > div > div {
  margin-top: 20px;
}
.course-l {
  flex: 1;
  padding: 25px 20px;
  background-color: white;
}
.course-l .course-l-head {
  font-size: 12px;
  color: #999;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #eee;
  padding-bottom: 12px;
}
.course-l .course-l-head span {
  font-size: 18px;
  font-weight: bold;
  color: #000;
  margin-right: 12px;
}
.course-l .course-list {
  height: 290px;
  overflow: hidden;
  padding: 20px;
  padding-bottom: 0;
  transition: 0.5s;
  margin-top: 10px;
}
.course-l .course-list-item {
  float: left;
  height: 95px;
  width: calc((100% - 122px) / 7);
  box-shadow: -1px 1px 5px 1.5px rgba(0, 168, 212, 0.15);
  margin-right: 20px;
  margin-bottom: 20px;
  text-align: center;
  font-size: 11px;
  color: #666;
}
.course-l .course-list-item img {
  height: 40px;
  width: 40px;
  margin-top: 15px;
  margin-bottom: 10px;
}
.course-l .course-list-item:nth-child(7n) {
  margin-right: 0;
}
.course-l .course-more {
  margin-top: 23px;
}
.course-r {
  width: 340px;
  height: 448px;
}
.course-r img {
  border-radius: 2px;
  width: auto;
}
.details-l {
  flex: 1;
  height: auto;
  padding: 25px 20px;
  background-color: white;
}
.details-l .details-l-head {
  font-size: 12px;
  color: #999;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #eee;
  padding-bottom: 12px;
}
.details-l .details-l-head span {
  font-size: 18px;
  font-weight: bold;
  color: #000;
  margin-right: 12px;
}
.details-l .details-hint {
  padding: 20px 0;
  margin: 0 15px;
  color: #666;
  font-size: 12px;
}
.details-l .details-hint .hint-tit {
  margin-bottom: 20px;
  font-size: 16px;
  color: #000;
}
.details-l .hint-list li {
  display: flex;
  margin: 5px 0;
  align-items: center;
}
.details-l .hint-list span {
  display: block;
  width: 20px;
  height: 18px;
  line-height: 20px;
  text-align: center;
  background-color: #6ad8f5;
  color: white;
  margin-right: 12px;
  border-radius: 8px 0px 8px 0px;
}
.details-l .details-content {
  padding: 0 15px;
  /*overflow: hidden;
  height: 582px;*/
  transition: 0.5s;
}
.details-l .details-content img {
  max-width: 80% !important;
}
.details-l .details-more {
  margin-top: 100px;
}
.content-tit {
  font-size: 18px;
  font-weight: bold;
  color: #000;
  border-bottom: 1px solid #e8e8e8;
  padding-bottom: 12px;
  padding-top: 5px;
}
.details-r {
  width: 340px;
}
.details-r > div {
  border: 1px solid #e8e8e8;
  padding: 20px;
  border-radius: 2px;
  background-color: white;
}
.details-r .qun-list {
  padding-top: 20px;
}
.details-r .qun-list .qun-btn {
  width: calc(50% - 13px);
  height: 47px;
  margin-bottom: 20px;
}
.details-r .qun-list .qun-btn:nth-child(2n-1) {
  margin-right: 20px;
}
.details-r .qun-list .qun-btn i {
  font-size: 20px;
}
.details-r .qun-list .qun-btn span {
  display: inline-block;
  width: 90px;
  color: #00a8d4;
}
.details-r .link-down {
  margin-top: 20px;
}
.details-r .down-list {
  padding-top: 20px;
}
.details-r .list-item {
  height: 80px;
  display: flex;
  align-items: center;
  cursor: pointer;
  margin-top: 30px;
}
.details-r .list-item .item-l {
  height: 80px;
  width: 80px;
  box-shadow: -1px 1px 5px 1.5px rgba(0, 168, 212, 0.15);
  margin-right: 20px;
}
.details-r .list-item .item-r {
  height: 100%;
  flex: 1;
}
.details-r .list-item .item-r a {
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  height: 100%;
}
.details-r .list-item .item-r p:nth-child(1) {
  font-size: 15px;
}
.details-r .list-item .item-r .file-siez {
  margin-right: 30px;
}
.down-link {
  padding: 20px 20px;
  background-color: white;
}
.down-link .down-item {
  margin-bottom: 10px;
}
.down-link .down-item .down-item-tit {
  padding: 20px 0;
  color: #505050;
}
.down-link .down-item .btn-warp .btn-item {
  width: 240px;
  height: 60px;
  font-size: 20px;
  margin-right: 20px;
  border-width: 2px;
}
.skill-share {
  background-color: #fff;
  margin-top: 20px;
  padding: 20px 20px;
}
.skill-share .content-tit {
  display: flex;
  justify-content: space-between;
}
.skill-share .content-tit span:nth-child(2) a {
  color: #aaa;
  font-size: 12px;
  font-weight: normal;
}
.skill-share .content-list {
  margin-top: 20px;
  display: flex;
}
.skill-share .content-list .img-warp {
  width: 116px;
  height: 65px;
  margin-right: 20px;
}
.skill-share .content-list .img-warp img {
  width: 100%;
  height: 100%;
}
.skill-share .content-list .desc-warp {
  width: calc(100% - 136px);
  color: #8f8f8f;
  font-size: 12px;
}
.skill-share .content-list .desc-warp .list-title {
  font-size: 16px;
  font-weight: bold;
  color: #000;
}
.skill-share .content-list .desc-warp p {
  margin-bottom: 6px;
}
.skill-share .content-list .desc-warp .list-info span {
  margin-right: 18px;
}
.more-box {
  display: flex;
  justify-content: center;
}
.more-box .more-btn {
  color: #00a8d4;
  background-color: #eeeeee;
  font-size: 12px;
  height: 35px;
  width: 120px;
}
.more-box .more-btn i {
  margin-left: 12px;
  font-size: 12px;
  transition: 0.5s;
}
.more-box .more-btn .dao {
  transform: rotate(180deg);
}
.link-course {
  padding: 20px;
  background-color: white;
}
.link-course .content-tit {
  justify-content: space-between;
  display: flex;
}
.link-course .new-course {
  font-size: 16px;
  color: #999;
  cursor: pointer;
  font-weight: normal;
}
.link-course .course-list {
  margin-top: 20px;
  padding-top: 5px;
}
.link-course .course-list .list-item {
  float: left;
  width: calc((100% - 42px) / 3);
  margin-right: 20px;
  box-shadow: 0px 2px 10px 2px rgba(0, 0, 0, 0.05);
  border-radius: 5px;
  overflow: hidden;
}
.link-course .course-list .list-item:last-child {
  margin-right: 0;
}
.link-course .course-list .list-item p {
  text-align: center;
  padding: 20px 5px;
}
.link-course .course-list .list-item .item-img-warp {
  height: 148px;
  width: 100%;
}
.pwd-btn {
  position: relative;
}
.pwd-btn .cdb-pwd,
.pwd-btn .cdb-pwd2 {
  display: none;
  position: absolute;
  text-align: left;
  left: -20px;
  top: 60px;
  background-color: #f2f2f2;
  box-shadow: 0 4px 8px rgba(204, 204, 204, 0.2);
  border-radius: 8px;
  padding: 15px 15px 10px 15px;
  z-index: 99;
  width: 410px;
  user-select: text;
}
.pwd-btn .cdb-pwd p,
.pwd-btn .cdb-pwd2 p {
  margin: 10px 0;
}
.recommend-box {
  margin-top: 50px;
}
.recommend-box a {
  display: block;
  float: left;
  width: calc((100% - 56px) / 4);
  height: 140px;
  margin-right: 18px;
  margin-top: 20px;
}
.recommend-box a:nth-child(4n) {
  margin-right: 0;
}
.test {
  width: 100px;
}