.about_bg {
  background: url(../../static/img/wulian/about_banner.png) no-repeat center center;
}

.section-1 {
  padding-top: 110px;
  padding-bottom: 78px;
}

.section-1 .nav {
  width: 768px;
  margin: 0 auto;
}

.section-1 .nav ul {
  display: flex;
  justify-content: space-between;
}

.section-1 .nav ul li {
  width: 133px;
  height: 44px;
  text-align: center;
  cursor: pointer;
}

.section-1 .nav ul li a {
  width: 100%;
  height: 100%;
  line-height: 44px;
  font-size: 26px;
  color: #333;
}

.section-1 .nav ul li:hover {
  background-color: #2a58e5;
}

.section-1 .nav ul li:hover a {
  color: #fff;
}

.section-1 .nav ul .active {
  background-color: #2a58e5;
}

.section-1 .nav ul .active a {
  color: #fff;
}

.section-1 .title {
  font-size: 36px;
  color: #333;
  text-align: center;
  margin-top: 79px;
}

.section-1 .info {
  display: flex;
  margin-top: 60px;
}

.section-1 .info .left {
  width: 50%;
  font-size: 16px;
  color: #333;
  line-height: 24px;
  text-indent: 2em;
  padding-right: 10px;
  height: 431px;
  overflow: hidden;
}

.section-1 .info .right {
  width: 50%;
  padding-left: 10px;
  height: 431px;
}

.section-1 .info .right img {
  width: 100%;
  height: 100%;
}

.section-2 {
  background-color: #f2f2f2;
  padding: 100px 0;
  text-align: center;
}

.section-2 .title {
  font-size: 36px;
  color: #333;
}

.section-2 .culture {
  margin-top: 61px;
}

.section-2 .culture .item {
  background-color: #ffffff;
  padding: 0 30px;
  height: 390px;
  overflow: hidden;
  align-items: center;
}

.section-2 .culture .item img {
  width: 56px;
  height: 56px;
  margin: 0 auto;
  margin-top: 56px;
}

.section-2 .culture .item span {
  display: block;
  font-size: 26px;
  color: #333;
  margin-top: 14px;
}

.section-2 .culture .item p {
  margin-top: 41px;
  font-size: 16px;
  line-height: 24px;
  color: #999;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
}

.section-3 {
  text-align: center;
  padding: 100px 0;
}

.section-3 .title {
  font-size: 36px;
  color: #333;
}

.section-3 .info .item {
  margin-top: 55px;
}

.section-3 .info .item .item-img {
  padding: 10px;
  height: 350px;
  border: 1px solid #ddd;
  display: flex;
  align-items: center;
}

.section-3 .info .item .item-img img {
  width: 100%;
  max-height: 100%;
}

.section-3 .info .item span {
  display: block;
  font-size: 22px;
  line-height: 27px;
  color: #999;
  margin-top: 16px;
  word-break: break-all;
  white-space: normal;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.section-4 {
  text-align: center;
  padding: 100px 0;
  background-color: #f2f2f2;
}

.section-4 .title {
  font-size: 36px;
  color: #333;
}

.section-4 .info {
  margin-top: 60px;
}

.section-4 .info .item {
  padding: 50px 0;
  background-color: #fff;
  height: 44px;
}

.section-4 .info .item img {
  max-width: 144px;
  max-height: 44px;
}

.section-5 {
  padding: 100px 0;
  text-align: center;
}

.section-5 .title {
  font-size: 36px;
  color: #333333;
}

.section-5 .address {
  margin-top: 60px;
  text-align: left;
}

.section-5 .address .item span {
  display: block;
  font-size: 24px;
  margin-bottom: 24px;
}

.section-5 .address .item p {
  font-size: 18px;
  color: #666;
  line-height: 28px;
}

.section-5 .address .item img {
  width: 100%;
  margin-top: 30px;
  height: 380px;
}

@media screen and (max-width: 768px) {
  .section-1 .nav {
    display: none;
  }
  .section-1 .title {
    margin-top: 0px;
  }
  .section-1 .info {
    flex-direction: column-reverse;
  }
  .section-1 .info .left {
    width: 100%;
    padding: 0px;
  }
  .section-1 .info .right {
    width: 100%;
    padding: 0px;
    margin-bottom: 10px;
  }
}