.content-box {
  width: 100%;
  background: #f5f5f5;
}
.content {
  width: 690px;
  margin: -46px auto 0;
  border-radius: 10px 10px 0 0;
  background: #fff;
  padding: 40px 40px 210px;
  box-sizing: border-box;
  position: relative;
  z-index: 10;
}
.content .desc {
  font-size: 24px;
  font-weight: 400;
  text-align: left;
  color: #333333;
  line-height: 44px;
  margin-bottom: 30px;
}
.content .center-img {
  width: 610px;
  height: 320px;
  display: block;
  margin: 0 auto 60px;
}
.banner .banner-img {
  width: 750px;
  height: 300px;
}
.content h3 {
  font-size: 32px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #19bec4;
  margin-bottom: 30px;
}
.content h3 img {
  height: 6px;
  width: auto;
}
.content h3 .line1 {
  margin-right: 15px;
}
.content h3 .line2 {
  margin-left: 15px;
}
.content h4 {
  font-size: 28px;
  font-weight: 500;
  text-align: left;
  color: #333333;
  line-height: 1;
  margin-bottom: 20px;
  margin-top: 40px;
}
.tab-item {
  width: auto;
  display: inline-block;
  padding: 0 25px;
  box-sizing: border-box;
  height: 64px;
  opacity: 1;
  background: #f5f5f5;
  line-height: 64px;
  font-size: 24px;
  font-weight: 400;
  color: #666666;
  margin-bottom: 20px;
}
.icon-box {
  padding: 0 23px;
  box-sizing: border-box;
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.icon-box .item {
  width: 96px;
}
.icon-box .item img {
  width: 96px;
  height: 96px;
  margin-bottom: 20px;
}
.icon-box .item p {
  text-align: center;
  line-height: 1;
  font-size: 24px;
  font-weight: 400;
  text-align: center;
  color: #666666;
}