.w1400 {
  width: 1400px;
  margin: 0 auto;
}

.banner {
  animation: banner 3s ease;
  margin: 0 auto;
}

.padd-box {
  padding: 95px 0;
}

.header .header-box .nav-item:nth-child(6) {
  background-color: #1472D6;
}

.header .header-box .nav-item:nth-child(6) a {
  color: #ffffff;
}

.introduce {
  padding: 120px 0;
}

.introduce .introduce-title-name {
  color: #1472D6;
  font-size: 42px;
  font-weight: bold;
  text-align: center;
}

.introduce .introduce-text-box {
  margin-top: 72px;
}

.introduce .introduce-text-box .text {
  color: #3D3D3D;
  font-size: 18px;
  letter-spacing: 0.1em;
  text-align: justify;
  line-height: 48px;
  text-indent: 2em;
}

.course {
  padding: 80px 0;
  background: #EEF6FF;
}

.course .hy-item .title {
  display: flex;
  justify-content: space-between;
}

.course .hy-item .title .img {
  width: 278px;
}

.course .hy-item .title .warn {
  font-size: 24px;
  color: #1472D6;
}

.course .hy-item .hy-item-line {
  display: flex;
  margin-top: 70px;
}

.course .hy-item .hy-item-line .hy-item-line-img {
  flex: 1;
}

.course .hy-item .hy-item-line .hy-item-line-img img {
  height: 100%;
}

.course .hy-item .hy-item-line .hy-item-line-introduce {
  flex: 1.5;
  padding: 20px;
  background-color: #ffffff;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap .line-introduce-item {
  padding: 10px 20px;
  font-size: 24px;
  width: 48%;
  position: relative;
  cursor: pointer;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap .line-introduce-item .name {
  padding: 10px 20px;
  font-weight: 400;
  border-bottom: 3px solid #ffffff;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap .line-introduce-item .name:hover {
  color: #1472D6;
  border-bottom: 3px solid #1472D6;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap .line-introduce-item .name:hover + .line-introduce-item-popup {
  display: block;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap .line-introduce-item .line-introduce-item-popup {
  display: none;
  position: absolute;
  top: 100%;
  width: 100%;
  left: 0;
  font-size: 15px;
  background-color: #ffffff;
  z-index: 999;
  padding: 10px 20px;
  box-shadow: 0px 0px 20px 0px rgba(20, 114, 214, 0.1);
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap-noflex {
  display: block;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .introduce-wrap-noflex .line-introduce-item {
  width: 100%;
  margin-bottom: 50px;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .more-btn-right {
  width: 204px;
  background-color: #1472D6;
  float: right;
  text-align: center;
  padding: 12px 0;
  font-size: 24px;
  color: #ffffff;
  border-radius: 32px;
  margin-top: 50px;
  cursor: pointer;
}

.course .hy-item .hy-item-line .hy-item-line-introduce .more-btn-left {
  width: 204px;
  background-color: #1472D6;
  float: left;
  text-align: center;
  padding: 12px 0;
  font-size: 24px;
  color: #ffffff;
  border-radius: 32px;
  margin-top: 50px;
  cursor: pointer;
}

.educational-base {
  padding: 80px 0;
}

.educational-base .title {
  width: 602px;
  margin-bottom: 72px;
}

.educational-base .base-tab {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.educational-base .base-tab .base-tab-item {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 15%;
  height: 64px;
  font-size: 24px;
  border: 2px solid #1472D6;
  border-radius: 16px;
  margin-bottom: 20px;
  cursor: pointer;
}

.educational-base .base-tab .base-tab-item .icon {
  width: 22.4px;
  margin-right: 10px;
}

.educational-base .base-tab .active {
  background-color: #1472D6;
  color: #ffffff;
}

.educational-base .base-main {
  margin-top: 50px;
}