.public-banner {
  background-image: url("https://img.zengzhangjia.com/pc/banner_erp.jpg");
}
.menu {
  padding-top: 70px;
}
.menu ul,
.menu ol {
  display: flex;
  justify-content: space-between;
}
.menu ul li,
.menu ol li {
  background-image: linear-gradient(180deg, rgba(211, 224, 255, 0.13) 0%, #f1f1f1 100%);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
}
.menu ul li:hover .popup,
.menu ol li:hover .popup {
  opacity: 1;
}
.menu ul li img,
.menu ol li img {
  width: 64px;
  height: 64px;
}
.menu ul li .label,
.menu ol li .label {
  font-size: 21px;
  color: #333333;
  line-height: 24px;
  margin-top: 6px;
}
.menu ul li .popup,
.menu ol li .popup {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 5;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.44);
  border-radius: 10px;
  backdrop-filter: blur(4px);
  font-size: 16px;
  color: #ffffff;
  line-height: 24px;
  padding: 20px 29px;
  transition: 0.3s;
  opacity: 0;
}
.menu ul li {
  width: 351px;
  height: 146px;
}
.menu ol {
  margin-top: 20px;
}
.menu ol li {
  width: 260px;
  height: 202px;
}
.hangye {
  margin-top: 110px;
}
.hangye ul {
  display: flex;
  flex-wrap: wrap;
  padding-top: 13px;
}
.hangye ul li {
  width: 254px;
  height: 102px;
  line-height: 102px;
  text-align: center;
  position: relative;
  z-index: 5;
  margin-right: 28px;
  margin-top: 28px;
}
.hangye ul li:nth-child(4n) {
  margin-right: 0;
}
.hangye ul li img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -5;
}
.hangye ul li .label {
  font-size: 26px;
  color: #666666;
}
.doing {
  margin-top: 110px;
}
.doing .main {
  margin-top: 50px;
  display: flex;
}
.doing .main img {
  width: 378px;
  height: 378px;
  margin: 0 54px;
}
.doing .main ul {
  flex: 1;
}
.doing .main ul li {
  margin-top: 40px;
}
.doing .main ul li:first-child {
  margin-top: 13px;
}
.doing .main ul li .title {
  font-size: 24px;
  color: #0680ff;
  line-height: 28px;
}
.doing .main ul li .content {
  font-size: 16px;
  color: #333333;
  line-height: 18px;
  margin-top: 10px;
}