.solution-dropdown .solution-cases-lists a:nth-child(4) .solution-cases-list {
  background-color: #f4f9ff;
}
.solution-dropdown .solution-cases-lists a:nth-child(4) .solution-cases-list div:nth-child(2) p:nth-child(1) {
  color: #2e7aff;
}
.smart-park {
  background-color: #f4f9ff;
  padding: 80px 0px;
  text-align: center;
}
.smart-park .smart-park-context {
  font-weight: 400;
  font-size: 16px;
  color: #30374a;
  line-height: 32px;
  text-align: left;
  text-indent: 2em;
  margin: 60px 0px 73px 0px;
}
.smart-park .building-safety-passage {
  position: relative;
  z-index: 0;
  width: 1128px;
  height: 475px;
  padding: 30px 38px;
  background-image: url(../images/solution/smart-park-solution-bg.png);
  background-position: center;
  background-size: center;
  background-repeat: no-repeat;
}
.smart-park .building-safety-passage .digital-office {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 9;
  margin-left: -99px;
  margin-top: -99px;
  width: 198px;
  height: 198px;
  background: linear-gradient(180deg, #165bfe 0%, #5ea8fd 100%);
  box-shadow: 0px 20px 20px 1px rgba(46, 122, 255, 0.3);
  border-radius: 50%;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.smart-park .building-safety-passage .digital-office div:nth-child(2) {
  font-weight: bold;
  font-size: 30px;
  color: #ffffff;
  line-height: 42px;
  margin-top: -21px;
}
.smart-park .building-safety-passage .attract-investment {
  flex-wrap: wrap;
  column-gap: 442px;
  row-gap: 32px;
  align-items: flex-start;
}
.smart-park .building-safety-passage .attract-investment li {
  width: 341px;
  height: 95px;
  display: flex;
  justify-content: space-between;
  text-align: left;
}
.smart-park .building-safety-passage .attract-investment li .building-left p {
  font-weight: 400;
  font-size: 18px;
  color: #30374a;
  line-height: 25px;
}
.smart-park .building-safety-passage .attract-investment li .building-left div {
  font-weight: 400;
  font-size: 14px;
  color: #a7abb4;
  margin-top: 10px;
  line-height: 20px;
  letter-spacing: 0.7px;
}
.smart-park .building-safety-passage .attract-investment li:nth-child(2n + 1) .building-left p {
  text-align: right;
}
.precision-control {
  padding: 82px 0px 110px 0px;
}
.precision-control .data-exchange {
  margin-top: 76px;
  justify-content: space-between;
}
.precision-control .data-exchange li {
  width: 245px;
  height: 200px;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0px 0px 6px 1px rgba(46, 122, 255, 0.16);
  border-radius: 10px 10px 10px 10px;
  transition: all 0.4s ease;
}
.precision-control .data-exchange li div:nth-child(2) {
  font-weight: bold;
  font-size: 20px;
  color: #30374a;
  line-height: 28px;
  margin: 16px 0px 20px 0px;
  transition: all 0.4s ease;
}
.precision-control .data-exchange li div:nth-child(3) {
  font-weight: 400;
  font-size: 14px;
  color: #30374a;
  line-height: 20px;
  text-align: left;
}
.precision-control .data-exchange li:hover {
  margin-top: -20px;
  background: linear-gradient(180deg, #e9f3ff 0%, #ffffff 100%);
}
.precision-control .data-exchange li:hover div:nth-child(2) {
  color: #2e7aff;
}
.six-major-system {
  padding: 80px 0px;
  background-color: #f4f9ff;
}
.six-major-system .security-system1 {
  margin-top: 80px;
  justify-content: space-between;
  align-items: center;
}
.six-major-system .security-system1 li {
  width: 200px;
  height: 240px;
}
.six-major-system .security-system1 li:nth-child(2n) {
  display: flex;
  justify-content: center;
  align-items: center;
}
.six-major-system .security-system1 li:nth-child(2n + 1) {
  background-color: #ffffff;
  border-radius: 0px 0px 10px 10px;
  text-align: center;
}
.six-major-system .security-system1 li:nth-child(2n + 1) div:nth-child(1) {
  width: 200px;
  height: 8px;
  background: linear-gradient(268deg, #165bfe 0%, #5ea8fd 100%);
}
.six-major-system .security-system1 li:nth-child(2n + 1) div:nth-child(2) {
  margin-top: 12px;
}
.six-major-system .security-system1 li:nth-child(2n + 1) div:nth-child(3) {
  font-weight: bold;
  font-size: 18px;
  color: #2e7aff;
  line-height: 25px;
  margin: 16px 0px 20px 0px;
}
.six-major-system .security-system1 li:nth-child(2n + 1) div:nth-child(4) {
  width: 160px;
  margin: 0 20px;
  font-weight: 400;
  font-size: 14px;
  color: #a7abb4;
  line-height: 20px;
  letter-spacing: 1.5px;
  text-align: left;
}
.six-major-system .circle-line {
  margin: 16px 0px;
  justify-content: space-between;
  align-items: center;
}
.six-major-system .circle-line li:nth-child(2n) {
  width: 10px;
  height: 10px;
  background-color: #2e7aff;
  border-radius: 50%;
}
.six-major-system .circle-line li:nth-child(2n + 1) {
  width: 180px;
  height: 0px;
  border: 2px solid #2e7aff;
}
.six-major-system .circle-line li:first-child,
.six-major-system .circle-line li:last-child {
  width: 90px;
  height: 0px;
  border: 2px solid #2e7aff;
}
.six-major-system .security-system2 {
  justify-content: space-between;
  align-items: center;
}
.six-major-system .security-system2 li {
  width: 200px;
  height: 240px;
  position: relative;
}
.six-major-system .security-system2 li:nth-child(2n + 1) {
  display: flex;
  justify-content: center;
  align-items: center;
}
.six-major-system .security-system2 li:nth-child(2n) {
  background-color: #ffffff;
  border-radius: 10px 10px 0px 0px;
  text-align: center;
}
.six-major-system .security-system2 li:nth-child(2n) div:nth-child(1) {
  margin-top: 12px;
}
.six-major-system .security-system2 li:nth-child(2n) div:nth-child(2) {
  font-weight: bold;
  font-size: 18px;
  color: #2e7aff;
  line-height: 25px;
  margin: 16px 0px 20px 0px;
}
.six-major-system .security-system2 li:nth-child(2n) div:nth-child(3) {
  width: 160px;
  margin: 0 20px;
  font-weight: 400;
  font-size: 14px;
  color: #a7abb4;
  line-height: 23px;
  letter-spacing: 1px;
  text-align: left;
}
.six-major-system .security-system2 li:nth-child(2n) div:nth-child(4) {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200px;
  height: 8px;
  background: linear-gradient(268deg, #165bfe 0%, #5ea8fd 100%);
}