.course {
  height: 380px;
  padding-top: 34px;
  margin-bottom: 30px;
}
.c-img {
  width: 500px;
  height: 280px;
  left: 358px;
}
.c-right {
  overflow: hidden;
  width: 520px;
  margin-left: 28px;
}
.c-h5 {
  font-size: 18px;
  font-weight: 500;
  color: #000;
  margin-bottom: 18px;
}
.c-text {
  font-size: 14px;
  line-height: 2;
}
.c-tool .com-tag {
  margin: 0 12px;
  height: 34px;
}
.price {
  font-size: 20px;
  font-weight: 500;
  color: #ff5733;
}

.c-cates {
  width: 860px;
  min-height: 532px;
  overflow: hidden;
}
.c-tab {
  cursor: pointer;
  text-align: center;
  height: 60px;
  line-height: 60px;
  font-size: 15px;
  color: #fff;
  background-color: var(--primary);
}
.c-tab.active {
  background-color: #fff;
}
.c-con {
  padding: 30px;
}
.c-con i {
  font-size: 18px;
}
.c2-item {
  position: relative;
  padding: 0 10px 27px;
  margin-bottom: 24px;
}
.c2-item::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%) scaleY(0.5);
  bottom: 0;
  width: 762px;
  height: 1px;
  background-color: #a6a6a624;
}
.c2-h5 {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 14px;
}
.c2-h5 i {
  margin-right: 6px;
  color: var(--primary);
}
.c2-icon {
  width: 30px;
  height: 30px;
}
.c2-title {
  font-size: 16px;
  margin-left: 10px;
}
.c2-row {
  cursor: pointer;
}
.c2-row i {
  margin-right: 20px;
  transition: all 0.3s;
}
.c3-list {
  overflow: hidden;
  height: 0;
  transition: height 0.3s;
}
.c3-item {
  padding-left: 40px;
  margin: 18px 0 9px;
}
.c3-name i {
  font-size: 17px;
  margin-right: 8px;
}
.c-tip {
  text-align: center;
  font-size: 15px;
}
.c-form .layui-input-block {
  margin: 9px 44px 36px;
}
.c-form .layui-textarea {
  background-color: rgba(204, 204, 204, 0.1);
  min-height: 130px;
  padding: 24px;
  font-size: 15px;
}
.c-btn {
  cursor: pointer;
  display: block;
  padding: 0;
  border-radius: 0;
  width: 80px;
  margin-left: auto;
  margin-right: 44px;
}

/* 课程推荐 */
.c-re {
  overflow: hidden;
  width: 321px;
  padding: 11px 22px;
}