.page {
  position: relative;
  background-color: #f7f7f7;
  padding-top: 15px;
}

.page .container {
  background-color: #fff;
  padding-bottom: 30px;
}

.page .breadcrumb {
  margin-bottom: 0;
}

.course-info-hd {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  padding: 20px 0;
}

.course-info-hd .course-image {
  width: 120px;
  margin-right: 20px;
  padding-top: 10px;
}

.course-info-hd .course-name {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 10px;
}

.course-info-hd .produce a {
  color: #0027ff;
}

.course-info-hd .course-desc {
  margin-bottom: 5px;
}

.course-info-hd .star .fa {
  color: orange;
}

.course-context {
  background-color: #f7f7f7;
  padding: 15px;
  border-radius: 10px;
  line-height: 25px;
}

.hio {
  border: 1px solid #eeeeee;
}

.hio-title {
  padding: 10px 0;
  text-align: center;
  font-size: 14px;
  letter-spacing: 1px;
  font-weight: bold;
}

.hio .table {
  margin-bottom: 0;
}

.hio .table thead {
  background-color: #f7f7f7;
}

.hio .table th {
  font-size: 14px;
  text-align: center;
  border: none;
}

.hio .table td {
  font-size: 14px;
  text-align: center;
  border-top: 1px solid #eeeeee;
  vertical-align: middle;
}

.course-album {
  border: 1px solid #eeeeee;
  padding: 15px;
}

.course-tips .hole-info {
  padding-bottom: 15px;
}

.course-tips .hole-info .list-group-item {
  padding-top: 5px;
  padding-bottom: 5px;
}

@media (max-width: 1000px) {
  .course-tips .hole-info .list-group-item {
    width: 49%;
    margin-bottom: 5px;
  }
  .course-tips .nav-item {
    flex: 0 0 calc(20% - 10px);
    text-align: center;
  }
}

.course-tips .tab-content {
  border: 1px solid #cccccc;
  border-radius: 5px;
  padding: 15px 10px;
}

.course-tips .table {
  border: 1px solid #eeeeee;
}

.course-tips .bg-purple {
  background-color: purple;
}

.course-tips .bg-pink {
  background-color: pink;
}

.course-tips .tips-content {
  border: 1px solid #ccc;
}

.course-tips .tips-content-title {
  background-color: #4c4c4c;
  color: #fff;
  font-size: 14px;
  text-align: center;
  line-height: 30px;
}

.course-tips .tips-text {
  padding: 10px;
  color: #333;
  font-size: 14px;
}

.left {
  width: 200px;
  overflow: hidden;
  position: fixed;
  top: 100px;
  left: 20px;
  z-index: 300;
}

.scroll-links {
  margin-bottom: 30px;
}

.scroll-links .list-group-item {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}

.right {
  width: 270px;
  overflow: hidden;
  position: absolute;
  top: 30px;
  right: 20px;
  z-index: 300;
}

.popularity-course {
  margin-bottom: 30px;
}

.popularity-course .list-group-item {
  padding: 7px 10px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
}

.popularity-course .seq {
  width: 10%;
  font-size: 14px;
  font-style: italic;
}

.popularity-course .course-name {
  width: 68%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  color: #333;
}

.popularity-course .num {
  width: 22%;
}

.popularity-course .list-group-title {
  font-size: 14px;
  background-color: #333;
  color: #fff;
}

.play-btn {
  font-size: 20px;
}