.container .top-banner {
  background: url("../../images/course2/1.jpg") no-repeat center;
  height: 700px;
  color: #fff;
  padding: 1px;
}
.container .top-banner h2 {
  font-size: 57px;
  font-weight: bold;
  margin-top: 250px;
  margin-left: 80px;
}
.container .top-banner h3 {
  margin-top: 20px;
  font-size: 57px;
  margin-left: 80px;
}
.container .course2 .c2-block1 .block1-item {
  display: flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  justify-content: center;
  height: 570px;
}
.container .course2 .c2-block1 .block1-item .item {
  width: 297px;
  border: 1px solid #f0f0f0;
  padding: 50px 37px;
  box-sizing: border-box;
  margin: 0 33px;
  text-align: center;
  box-shadow: 0 0 21px 1px #eee;
}
.container .course2 .c2-block1 .block1-item .item .iconfont {
  display: block;
  height: 45px;
  font-size: 55px;
  text-align: center;
  margin-bottom: 50px;
  color: #4286f3;
}
.container .course2 .c2-block1 .block1-item .item h2 {
  width: 175px;
  margin: 0 auto;
  font-size: 24px;
  color: #3b3b3b;
  line-height: 25px;
}
.container .course2 .c2-block1 .block1-item .item p {
  color: #57565d;
  margin-top: 35px;
  text-align: left;
  line-height: 30px;
  font-size: 15px;
}
.container .course2 .c2-block1 .block1-item .item:hover {
  transform: scale(1.02);
  border-top: 5px solid #4286f3;
}
.container .course2 .c2-block2 .block2-item {
  display: flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  justify-content: center;
}
.container .course2 .c2-block2 .block2-item img {
  margin-right: 110px;
  width: 483px;
  height: 359px;
}
.container .course2 .c2-block2 .block2-item ul {
  margin-right: 95px;
  margin-left: 140px;
}
.container .course2 .c2-block2 .block2-item ul li {
  margin-bottom: 106px;
  position: relative;
  padding: 1px;
}
.container .course2 .c2-block2 .block2-item ul li .iconfont {
  display: block;
  width: 80px;
  height: 80px;
  line-height: 80px;
  border-radius: 50%;
  background: #4286f3;
  color: #fff;
  float: left;
  font-size: 55px;
  text-align: center;
}
.container .course2 .c2-block2 .block2-item ul li h2 {
  font-size: 24px;
  color: #000;
  margin-top: 5px;
  margin-left: 104px;
}
.container .course2 .c2-block2 .block2-item ul li p {
  margin-top: 18px;
  margin-left: 104px;
  line-height: 25px;
}
.container .course2 .c2-block2 .block2-item ul li:before {
  content: "";
  display: inline-block;
  height: 106px;
  border-right: 2px dashed #e8e8e8;
  position: absolute;
  top: 81px;
  left: 38px;
}
.container .course2 .c2-block2 .block2-item ul li:last-child:before {
  content: "";
  height: 0;
}
.container .course2 .c2-block3 {
  position: relative;
}
.container .course2 .c2-block3 img {
  width: 100%;
  height: 359px;
}
.container .course2 .c2-block3 p {
  text-align: center;
  color: #fff;
  margin-top: 88px;
  margin-bottom: 28px;
}
.container .course2 .c2-block3 .line {
  width: 877px;
  height: 12px;
  margin: 0 auto;
  display: block;
}
.container .course2 .c2-block3 ul {
  position: absolute;
  left: 50%;
  margin-left: -453px;
}
.container .course2 .c2-block3 ul li {
  float: left;
  margin-right: 61px;
  margin-top: 9px;
}
.container .course2 .c2-block3 ul li span {
  display: block;
  font-size: 14px;
  width: 60px;
}
.container .course2 .c2-block3 ul li span:nth-of-type(1) {
  width: 33px;
  height: 33px;
  background: #fff;
  border-radius: 50%;
  display: inline-block;
}
.container .course2 .c2-block3 ul li span:nth-of-type(1):hover {
  width: 19px;
  height: 19px;
  background: #4286f3;
  border: 7px solid #d8e633;
}
.container .course2 .c2-block3 ul li span:nth-of-type(2) {
  color: #fff;
  margin-top: 15px;
  line-height: 25px;
  transform: translateX(-26%);
  width: 85px;
  text-align: center;
}
.container .course2 .c2-block4 ul {
  width: 1155px;
  height: 217px;
  margin: 0 auto 187px;
  background-color: #f0f0f0;
}
.container .course2 .c2-block4 ul li {
  position: relative;
  float: left;
  width: 288px;
  height: 108px;
  margin-right: 1px;
  margin-bottom: 1px;
  box-sizing: border-box;
}
.container .course2 .c2-block4 ul li:nth-of-type(4n + 4) {
  margin-right: 0;
}
.container .course2 .c2-block4 ul li:hover {
  transform: scale(1.02, 1.01);
  border-top: 4px solid #4286f3;
  box-shadow: 0 11px 35px 0 rgba(0, 0, 0, 0.08);
  z-index: 1;
}
.container .course2 .c1-block4 {
  margin-bottom: 60px;
}
.container .course2 .c1-block4 .block4-item {
  display: flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  justify-content: center;
}
.container .course2 .c1-block4 .block4-item img:nth-of-type(1) {
  margin-right: 65px;
}