*,
*::before,
*::after {
  margin: 0;
  padding: 0;
}
body {
  background-color: #f7f7f8;
}
.text-one {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.text-two {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.new-course-box {
  margin-bottom: 30px;
  overflow: hidden;
}
.new-course {
  box-sizing: border-box;
  width: 910px;
  margin: 0 auto;
  margin-top: 20px;
  color: #333;
}
.new-course .new-course-title {
  font-size: 20px;
  font-weight: 400;
  margin-bottom: 30px;
}
.new-course .new-course-list .new-course-item {
  display: flex;
  margin-bottom: 20px;
}
.new-course .new-course-list .new-course-item:nth-child(n+4) {
  display: none;
}
.new-course .new-course-list .new-course-item .new-course-item-l {
  width: 16px;
  height: 16px;
  margin-top: 20px;
  margin-right: 50px;
  margin-left: 80px;
  position: relative;
}
.new-course .new-course-list .new-course-item .new-course-item-l .dot {
  height: 100%;
  width: 100%;
  background-color: #fff;
  border: 3px solid #009944;
  border-radius: 50%;
  box-sizing: border-box;
}
.new-course .new-course-list .new-course-item .new-course-item-l .shu {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  height: 65px;
  width: 2px;
  background-color: #e4e4e4;
}
.new-course .new-course-list .new-course-item .new-course-item-r {
  width: 770px;
  border: 1px solid #ededed;
  box-sizing: border-box;
  cursor: default;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 .grade1-l {
  display: flex;
  font-size: 16px;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 .grade1-l .grade1-time {
  width: 100px;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 .grade1-l .grade1-c {
  width: 550px;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 .grade1-r {
  transition: all 0.3s;
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade1 .active {
  transform: rotate(-180deg);
}
.new-course .new-course-list .new-course-item .new-course-item-r .grade2 {
  display: none;
  min-height: 0;
  font-size: 15px;
  padding: 18px 22px;
  padding-top: 0;
  color: #888;
  line-height: 30px;
}
.new-course .new-course-list .more {
  display: inline-block;
  margin-left: 150px;
  text-decoration: underline;
  font-size: 18px;
  color: #666;
  cursor: default;
}