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

.section-1 {
  padding: 100px 0;
}

.section-1 .nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 9px;
  border-bottom: 2px solid rgba(225, 225, 225, 0.4);
}

.section-1 .nav .breadcrumb {
  font-size: 16px;
}

.section-1 .nav .nav_log {
  font-size: 20px;
}

.section-1 .nav .color {
  color: #ff3333;
}

.section-1 .introduce {
  text-align: center;
}

.section-1 .introduce .title {
  font-size: 34px;
  color: #333333;
  margin-top: 80px;
  margin-bottom: 60px;
}

.section-1 .introduce .content {
  font-size: 18px;
  color: #666;
}

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

.section-2 .advantage {
  text-align: center;
}

.section-2 .advantage .title {
  font-size: 34px;
  color: #333333;
  margin-bottom: 60px;
}

.section-2 .advantage .content .item {
  display: flex;
  align-items: center;
  background-color: #ffffff;
  padding: 43px 38px;
  height: 103px;
}

.section-2 .advantage .content .item .left {
  margin-right: 40px;
}

.section-2 .advantage .content .item .left img {
  width: 64px;
  height: 64px;
}

.section-2 .advantage .content .item .right {
  text-align: left;
}

.section-2 .advantage .content .item .right span {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  font-size: 24px;
  color: #333;
}

.section-2 .advantage .content .item .right p {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-size: 14px;
  line-height: 22px;
  margin-top: 35px;
  color: #666;
}

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

.section-3 .title span {
  font-size: 34px;
  color: #333333;
}

.section-3 .title p {
  font-size: 18px;
  color: #666666;
  margin-top: 24px;
}

.section-3 .content {
  margin-top: 59px;
}

.section-3 .content .item {
  box-shadow: 0px 0px 9px 0px rgba(7, 1, 2, 0.14);
}

.section-3 .content .item img {
  width: 100%;
  height: 236px;
}

.section-3 .content .item .info {
  text-align: left;
  padding: 20px 30px;
  height: 138px;
}

.section-3 .content .item .info span {
  font-size: 24px;
  color: #333;
}

.section-3 .content .item .info p {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  font-size: 14px;
  color: #666;
  line-height: 24px;
  margin-top: 18px;
}

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

.section-4 .title span {
  font-size: 34px;
  color: #333333;
}

.section-4 .title p {
  font-size: 18px;
  color: #666666;
  margin-top: 24px;
}

.section-4 .content {
  margin-top: 59px;
}

.section-4 .content .item {
  display: block;
  height: 308px;
}

.section-4 .content .item .bg {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.section-4 .content .item .bg span {
  font-size: 18px;
  color: #ffffff;
}

.section-4 .content .item .bg i {
  display: block;
  width: 16px;
  height: 3px;
  background-color: #ff3333;
  margin: 7px auto 10px auto;
}

.section-4 .content .item .bg p {
  font-size: 14px;
  color: #ffffff;
  line-height: 22px;
  padding: 0 15px;
}

@media screen and (max-width: 768px) {
  .section-1 .nav .breadcrumb {
    font-size: 12px;
  }
  .section-1 .nav .nav_log {
    font-size: 16px;
  }
}