.public-banner {
  background-image: url("https://img.zengzhangjia.com/pc/banner_saas.jpg");
}
.menu {
  display: flex;
  margin-top: 71px;
}
.menu li {
  width: 173px;
  height: 279px;
  background-image: linear-gradient(180deg, #f1f7ff 0%, #ddecff 100%);
  border-radius: 8px;
  margin-right: 14px;
  position: relative;
  overflow: hidden;
  z-index: 5;
  cursor: pointer;
  transition: 0.3s;
}
.menu li:last-child {
  margin-right: 0;
}
.menu li.active {
  width: 352px;
}
.menu li.active img {
  left: 66px;
  bottom: 29px;
}
.menu li.active > .title {
  display: none;
}
.menu li.active .popup {
  opacity: 1;
  transition: 0.3s;
  background-color: rgba(8, 128, 255, 0.79);
}
.menu li img {
  width: 221px;
  height: 221px;
  position: absolute;
  bottom: -25px;
  left: -17px;
  z-index: -5;
  transition: 0.2s;
}
.menu li > .title {
  font-weight: 500;
  font-size: 18px;
  color: #333333;
  line-height: 25px;
  padding-top: 26px;
  text-align: center;
}
.menu li .popup {
  display: flex;
  padding: 24px 38px 22px 35px;
  color: #fff;
  flex-direction: column;
  height: 100%;
  opacity: 0;
}
.menu li .popup .title {
  font-size: 18px;
  color: #f7f7f9;
  line-height: 21px;
}
.menu li .popup .subtitle {
  font-size: 14px;
  color: #f7f7f9;
  line-height: 17px;
  margin-top: 10px;
}
.menu li .popup .content {
  font-size: 14px;
  color: #f7f7f9;
  line-height: 17px;
  margin-top: 12px;
}
.menu li .popup .bottom {
  margin-top: auto;
  display: flex;
}
.menu li .popup .bottom a {
  height: 47px;
  line-height: 47px;
  background-color: #ffffff;
  border-radius: 8px;
  font-size: 20px;
  color: #0880ff;
  padding: 0 20px;
}
.fangan {
  height: 696px;
  background-image: url("https://img.zengzhangjia.com/pc/fangan-bg.jpg");
  background-size: cover;
  margin-top: 110px;
  padding-top: 52px;
}
.fangan .main {
  padding-top: 42px;
  display: flex;
}
.fangan .main .nav li {
  width: 173px;
  height: 57px;
  line-height: 57px;
  border-radius: 8px;
  font-size: 23px;
  color: #333333;
  cursor: pointer;
  text-align: center;
  margin-top: 4px;
  transition: 0.3s;
}
.fangan .main .nav li:first-child {
  margin-top: 0;
}
.fangan .main .nav li.active {
  background-color: #ffffff;
  color: #0680ff;
}
.fangan .main .nav li:hover {
  background-color: #ffffff;
  color: #0680ff;
}
.fangan .main .detail {
  flex: 1;
  margin-left: 32px;
  padding-top: 10px;
}
.fangan .main .detail .title {
  font-size: 32px;
  color: #333333;
  line-height: 38px;
}
.fangan .main .detail .intro {
  padding-top: 20px;
}
.fangan .main .detail .intro li {
  font-size: 20px;
  color: #333333;
  line-height: 23px;
  margin-top: 17px;
  display: flex;
  align-items: center;
}
.fangan .main .detail .intro li::before {
  content: "";
  width: 8px;
  height: 8px;
  background-color: #d8d8d8;
  border-radius: 50%;
  display: block;
  margin-right: 8px;
}
.fangan .main .detail .imgs {
  display: flex;
  margin-top: 42px;
}
.fangan .main .detail .imgs li {
  width: 164px;
  height: 83px;
  background-color: #ffffff;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 18px;
  overflow: hidden;
}
.fangan .main .detail .imgs li:last-child {
  margin-right: 0;
}
.fangan .main .detail .imgs li img {
  width: 100%;
}
.fangan .main .detail a {
  width: 236px;
  height: 57px;
  line-height: 55px;
  text-align: center;
  background-color: #0680ff;
  border-radius: 8px;
  display: block;
  font-size: 23px;
  color: #ffffff;
  margin-top: 50px;
  transition: 0.3s;
  border: 1px solid transparent;
}
.fangan .main .detail a:hover {
  background-color: transparent;
  color: #0680ff;
  border-color: #0680ff;
}
.zengzhangjia {
  position: relative;
  z-index: 5;
  height: 276px;
  background-image: linear-gradient(315deg, #4da4ff 0%, #aaa3ff 100%);
}
.zengzhangjia::before {
  content: "";
  position: absolute;
  right: 67px;
  top: 0;
  width: 701px;
  height: 276px;
  background-image: url("../img/crm/zengzhangjia-bg.png");
  background-repeat: no-repeat;
  background-size: cover;
  z-index: -5;
}
.zengzhangjia .main .head {
  font-weight: 500;
  font-size: 32px;
  color: #ffffff;
  line-height: 45px;
  padding-top: 67px;
}
.zengzhangjia .main a {
  width: 236px;
  height: 57px;
  line-height: 57px;
  text-align: center;
  background-color: #f7f7f9;
  border-radius: 8px;
  font-weight: 500;
  font-size: 23px;
  color: #0880ff;
  display: block;
  margin-top: 41px;
  transition: 0.2s;
}
.zengzhangjia .main a:hover {
  background-color: #0880ff;
  color: #fff;
}
footer {
  margin-top: 28px;
}