.content {
  width: 100%;
  margin-top: 30px;
}

.content .content-l {
  width: 66%;
}

.content .content-l .table {
  width: 100%;
  background: url(../../images/kaoyan/lesson-item-line.png) no-repeat left top;
  margin-top: 15px;
  padding-top: 28px;
}

.content .content-l .table table {
  width: 100%;
  border-radius: 9px 9px 0 0;
  overflow: hidden;
}

.content .content-l .table table thead {
  background-color: #fff5f5;
  border: solid 1px #fff5f5;
}

.content .content-l .table table thead tr {
  width: 100%;
  line-height: 64px;
  height: 64px;
}

.content .content-l .table table thead tr td {
  text-align: center;
  font-size: 18px;
  white-space: nowrap;
  word-break: keep-all;
}

.content .content-l .table table thead tr td span {
  display: inline-block;
  color: #e02727;
  padding-left: 30px;
  position: relative;
}

.content .content-l .table table thead tr td span img {
  position: absolute;
  left: 0;
  top: 50%;
  -ms-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -o-transform: translateY(-50%);
  transform: translateY(-50%);
}

.content .content-l .table table tbody {
  border: solid 1px #e5e5e5;
}

.content .content-l .table table tbody tr {
  width: 100%;
}

.content .content-l .table table tbody tr td {
  text-align: center;
  padding: 30px;
  border: dashed 1px #e5e5e5;
}

.content .content-l .table table tbody tr td a,
.content .content-l .table table tbody tr td span {
  font-size: 16px;
  line-height: 30px;
}

.content .content-l .table table tbody tr td a.clicked {
  display: none;
}

.content .content-l .table table tbody tr td a.a-clicked {
  display: block;
}

.content .content-l .table table tbody tr td:last-child {
  text-align: left;
  position: relative;
}

.content .content-l .table table tbody tr td:last-child .sel-toggle {
  position: absolute;
  left: 30px;
  bottom: 7px;
  width: 24px;
  height: 16px;
  background: rgba(224, 39, 39, 0.1);
  cursor: pointer;
}

.content .content-l .table table tbody tr td:last-child .sel-toggle img {
  width: 12px;
  height: 7px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -3.5px;
  margin-left: -6px;
  -ms-transition: all 0.2s;
  -moz-transition: all 0.2s;
  -webkit-transition: all 0.2s;
  -o-transition: all 0.2s;
  transition: all 0.2s;
}

.content .content-l .table table tbody tr td:last-child .sel-toggle.clicked img {
  -ms-transform: rotate(180deg);
  -moz-transform: rotate(180deg);
  -webkit-transform: rotate(180deg);
  -o-transform: rotate(180deg);
  transform: rotate(180deg);
}

@media screen and (max-width: 1440px) {
  .content .content-l .table {
    margin-top: 12px;
    padding-top: 25px;
  }
  .content .content-l .table table thead tr {
    line-height: 56px;
    height: 56px;
  }
  .content .content-l .table table thead tr td {
    font-size: 16px;
  }
  .content .content-l .table table thead tr td img {
    width: 20px;
  }
  .content .content-l .table table tbody tr td {
    padding: 20px;
  }
  .content .content-l .table table tbody tr td a,
  .content .content-l .table table tbody tr td span {
    font-size: 14px;
    line-height: 24px;
  }
  .content .content-l .table table tbody tr td:last-child .sel-toggle {
    left: 20px;
    bottom: 3px;
  }
}

@media screen and (max-width: 1366px) {
  .content .content-l .table table thead tr {
    line-height: 48px;
    height: 48px;
  }
}