.sys-course-wrapper {
  background-color: #f2f4f8;
}

.sys-course-bg {
  height: 384px;
  background-image: url("https://qishan-lwj.oss-cn-hangzhou.aliyuncs.com/img/syscourse-bg.jpg");
  /* background-size: cover; */
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sys-course-bg h4 {
  font-size: 36px;
}

.sys-course-bg p {
  font-size: 16px;
  color: #909399;
  margin-top: 26px;
}

.course-classify-wrapper {
  background-color: #fff;
  padding: 15px 0;
}

.course-classify-list {
  display: flex;
  /* align-items: center; */
}

.course-classify-list b {
  line-height: 24px;
  color: #313d54;
  font-weight: 600;
  font-size: 16px;
}

.course-classify-list span {
  flex: 1;
  margin-left: 10px;
}

.course-classify-list a {
  line-height: 24px;
  padding: 4px 12px;
  text-align: center;
  font-size: 16px;
}

.course-classify-list .active {
  background-color: #409eff;
  color: #fff;
  border-radius: 5px;
}

.course-list {
  display: flex;
  flex-wrap: wrap;
}

.course-list .study-course-item {
  box-sizing: border-box;
  margin-right: 10px;
  margin-bottom: 15px;
  flex: 0 0 24%;
  background-color: #fff;
  border-radius: 10px;
  text-align: center;
  padding: 10px;
  cursor: pointer;
}

.course-list .study-course-item:nth-child(4n) {
  margin-right: 0;
}

.course-list img {
  display: inline-block;
  width: 100%;
  border-radius: 10px;
}

.course-list .course-name,
.course-list .sub-title {
  text-align: left;
}

.course-list .course-name {
  font-size: 16px;
  color: #000;
  margin-top: 20px;
  min-height: 40px;
  width:240px;
}

.course-list .sub-title {
  font-size: 14px;
  color: #909399;
  border-bottom: 1px solid #F2F6FC;
  width: 272px;
  /* line-height: 40px; */
}

.sys-course-wrapper .bg-01{
  background-color: #fff;
  height: 591px;
  text-align: center;
}

.sys-course-wrapper .bg-02 {
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  height: 310px;
  background-image: url("https://qishan-lwj.oss-cn-hangzhou.aliyuncs.com/img/ai-qtzy.png");
}