.mooc .bk {
  z-index: -1;
  height: 180px;
  opacity: 0.3;
  -webkit-filter: blur(100px);
          filter: blur(100px);
  width: 100%;
  position: absolute;
  top: 0;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.mooc .wrap {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  margin-top: 32px;
  margin-bottom: 30px;
}
.mooc .wrap .banner {
  background-color: #fff;
  -webkit-box-shadow: 0 12px 24px 0 rgba(7, 17, 27, 0.2);
          box-shadow: 0 12px 24px 0 rgba(7, 17, 27, 0.2);
  height: 444px;
  overflow: hidden;
  position: relative;
  width: 1152px;
  border-radius: 8px;
}
.mooc .wrap .banner .menu-content {
  position: relative;
  float: left;
  width: 216px;
  height: 444px;
  z-index: 20;
  padding-top: 12px;
  background: #2b333b;
  border-bottom-left-radius: 4px;
  font-weight: 400;
}
.mooc .wrap .banner .menu-content .item {
  height: 60px;
  font-size: 14px;
  cursor: pointer;
  margin-left: 12px;
  padding: 0 16px 0 16px;
  color: rgba(255, 255, 255, 0.6);
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}
.mooc .wrap .banner .menu-content .item i {
  font-size: 14px;
}
.mooc .wrap .banner .menu-content .item:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.3);
}
.mooc .wrap .banner .submenu {
  background: #fff;
  left: 216px;
  top: 0px;
  width: 768px;
  height: 444px;
  z-index: 100;
  -webkit-box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.1);
          box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.1);
  position: absolute;
}
.mooc .wrap .banner .submenu .sub-wrap {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.mooc .wrap .banner .submenu .sub-wrap .innerBox {
  background-color: #fff;
  padding: 12px 48px 32px;
  position: relative;
  min-height: 150px;
}
.mooc .wrap .banner .submenu .sub-wrap .innerBox .banner-line {
  position: relative;
  height: 1px;
  margin: 35px 0 23px;
  background-color: rgba(77, 85, 93, 0.08);
}
.mooc .wrap .banner .submenu .sub-wrap .innerBox .banner-line span {
  position: absolute;
  top: -12px;
  left: 0;
  padding-right: 12px;
  font-size: 14px;
  font-weight: 700;
  color: #F20D0D;
  line-height: 24px;
  background-color: #fff;
}
.mooc .wrap .banner .submenu .sub-wrap .innerBox .tag-box a {
  margin-bottom: 16px;
  font-size: 14px;
  color: #4D555D;
  line-height: 22px;
  margin-right: 24px;
  display: inline-block;
}
.mooc .wrap .banner .submenu .sub-wrap .innerBox .tag-box a:hover {
  color: #f01414;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box {
  position: absolute;
  bottom: 0;
  background: #F8FAFC;
  padding: 36px 0 0 48px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card {
  width: 312px;
  height: 60px;
  margin-right: 48px;
  margin-bottom: 36px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card img {
  width: 64px;
  height: 42px;
  border-radius: 4px;
  background-color: #ccc;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card .card {
  margin-left: 16px;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card .card .name {
  width: 232px;
  font-size: 12px;
  color: #07111B;
  line-height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 400;
}
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card .card .price,
.mooc .wrap .banner .submenu .sub-wrap .recomment-box .banner-card .card .sales {
  font-size: 12px;
  color: #4D555D;
  line-height: 20px;
  display: inline-block;
  margin-right: 10px;
}
.mooc .wrap .banner .carousel {
  width: 937px;
  margin-left: 215px;
}
.mooc .wrap .banner .hot-banner {
  height: 128px;
  overflow: hidden;
  -webkit-box-shadow: 0 4px 8px 0 rgba(7, 17, 27, 0.1);
          box-shadow: 0 4px 8px 0 rgba(7, 17, 27, 0.1);
  background-color: #fff;
  text-align: center;
  padding: 0 18px;
}
.mooc .wrap .banner .hot-banner a {
  float: left;
  font-size: 0;
  width: 180px;
  height: 128px;
  overflow: hidden;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.mooc .wrap .banner .hot-banner a:hover {
  margin-top: -4px;
}
.mooc .wrap .banner .hot-banner img {
  display: inline-block;
  width: 36px;
  height: 36px;
  background-size: 100%;
  margin-top: 22px;
}
.mooc .wrap .banner .hot-banner .tit {
  font-size: 14px;
  color: #07111B;
  letter-spacing: 1px;
  margin-top: 4px;
}
.mooc .wrap .banner .hot-banner .desc {
  font-size: 12px;
  color: #93999F;
  line-height: 16px;
  margin-top: 2px;
  font-weight: 400;
}