.container {
  width: 100%;
  background-color: #eff2f9;
}

.banner {
  width: 1200px;
  height: 368px;
  margin: auto;
  background-image: url('../images/ykt-banner.png');
}

.top-title {
  width: 1200px;
  margin: auto;
  color: #999;
  font-size: 14px;
  margin-top: 20px;
}

.top-title a {
  color: #333;
  text-decoration: none;
}

.top {
  width: 1200px;
  margin: auto;
  margin-top: 20px;
  border-radius: 5px;
  background-color: #fff;
}

form label {
  cursor: pointer;
}

form input {
  display: none;
}

.menu-t ul {
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: space-between;
  background-color: #f5f7fa;
}

.menu-t ul li {
  width: 400px;
  list-style: none;
  padding: 20px;
  color: #333;
  font-size: 16px;
  font-weight: bold;
  text-align: center;
}

.active {
  background-color: #fff;
  color: #027fff !important;
}

.menu-d {
  position: relative;
  padding:20px 20px 30px;
}

.menu-d .jt-s {
  position: absolute;
  top: 50px;
  right: 40px;
}

.menu-d .jt-x {
  position: absolute;
  top: 180px;
  right: 40px;
}

.grand {
  display: flex;
  margin-top: 15px;
}

.grand-1 {
  width: 50px;
  float: left;
  margin: 0 15px 0 30px;
  font-size: 14px;
  font-weight: bold;
  color: #999;
  line-height: 32px;
}

.grand-2 {
  width: 1000px;
  line-height: 150%;
}

.grand-2 ul {
  padding: 0;
  margin: 0;
}

.grand-2 ul li {
  list-style: none;
  float: left;
  white-space: nowrap;
  margin: 0px 10px 0 0px;
  padding: 4px 15px;
  font-size: 14px;
  font-weight: bold;
  color: #333;
}

.choose {
  color: #027fff !important;
  background-color: rgb(2, 127, 255, 0.1);
  border-radius: 16px;
}

.mp4 {
  width: 1200px;
  height: 100%;
  margin: auto;
  margin-top: 20px;
  border-radius: 5px;
  background-color: #fff;
}

.mp4-t {
  display: flex;
  justify-content: space-between;
  padding: 5px 25px 0 25px;
}

.mp4-t h3 {
  font-size: 18px;
  font-weight: bold;
  color: #333;
}

.mp4-t p {
  padding: 10px;
  font-size: 14px;
  color: #687682;
}

.mp4-t p span {
  margin-left: 28px;
  cursor: pointer;
}

.activation {
  color: #027fff;
}

.mp4-d {
  overflow: hidden;
}

.course-list {
  float: left;
  list-style: none;
  width: 268px;
  height: 285px;
  margin-left: 25px;
  margin-bottom: 30px;
  border-radius: 8px;
  box-shadow: 6px 6px 15px 0px #eff2f9;
  background-color: #fafbfd;
  text-decoration: none;
}

.course-list:hover {
  box-shadow: 6px 6px 15px 0px rgba(0, 128, 255, 0.184);
}

.course-list img {
  width: 268px;
  height: 153px;
  border-radius: 8px 8px 0 0;
}

.course-list .mp4-cont p {
  width: 250px;
  margin: 6px 0 0 0;
  padding: 0 10px;
}

.course-list .cls-name {
  min-height: 48px;
  font-size: 16px;
  font-weight: bold;
  line-height: 150%;
  color: #333;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.course-list .gra-name {
  min-height: 26px;
  font-size: 12px;
  color: #667280;
}

.course-list .gra-name span {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid #eaecee;
  background-color: #edeff2;
  font-size: 12px;
}

.course-list .nums {
  min-height: 16px;
  margin-top: 10px !important;
  font-size: 12px;
  color: #9e9e9e;
}

.culm-null {
  width: 100%;
  text-align: center;
}

.culm-null img {
  width: 280px;
}

.culm-null p {
  color: #89939f;
  font-size: 16px;
}

.pagination {
  width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-around;
  background-color: #fff;
}

.legal a {
  height: 245px;
}

.legal a .cls-name {
  /* line-height: 100%; */
  /* min-height: auto; */
}