.xitong1 {
  width: 100%;
  background: #F1F8FB;
  text-align: center;
  padding-top: 5rem;
  box-sizing: border-box;
}

.xitong1 h2 {
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
}

.xitong1 p {
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #323333;
  line-height: 1rem;
  margin-top: 2rem;
}

.xitong1 span {
  display: block;
  width: 100px;
  height: 4px;
  margin: auto;
  margin-top: 2rem;
  background: linear-gradient(90deg, #00A4F6, #00F3F6);
}

.xitong1 img {
  width: 30%;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.xitong2 {
  width: 100%;
  background: #FFFFFF;
  text-align: center;
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.xitong2 h2 {
  height: 31px;
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
}

.xitong2>div {
  display: flex;
  justify-content: center;
}

.xitong2>div>div {
  width: 35%;
}

.xitong2 p {
  height: 17px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #323333;
  line-height: 33px;
  margin-top: 44px;
}

.xitong2 span {
  display: block;
  width: 100px;
  height: 4px;
  margin: auto;
  margin-top: 35px;
  background: linear-gradient(90deg, #00A4F6, #00F3F6);
}

.xitong2 img {
  width: 80%;
  margin-top: 63px;
}

/* 软件系统介绍 */
.xitong3 {
  width: 100%;
  background: #F9F9F9;
  text-align: center;
  padding-top: 2rem;
  box-sizing: border-box;
}

.xitong3 h2 {
  height: 31px;
  font-size: 30px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  margin-bottom: 5rem;
}

.xitong3 h3 {
  font-size: 26px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #333333;
}

.xitong3>div:nth-child(2) {
  display: flex;
  justify-content: left;
  align-items: center;
}

.xitong3>div:nth-child(2)>div:nth-child(1) {
  width: 45%;
  text-align: left;
}

.xitong3>div:nth-child(2)>div:nth-child(1) img {
  width: 100%;
}

.xitong3>div:nth-child(2)>div:nth-child(2) {
  width: 55%;
  text-align: left;
  padding-left: 56px;
}

.xitong3 span {
  display: block;
  width: 100px;
  height: 4px;
  margin-bottom: 30px;
  background: linear-gradient(90deg, #00A4F6, #00F3F6);
}

.xitong3>div:nth-child(3) {
  display: flex;
  justify-content: right;
  align-items: center;
}

.xitong3>div:nth-child(3)>div:nth-child(1) {
  width: 55%;
  text-align: right;
  padding-right: 56px;
}

.xitong3>div:nth-child(3)>div:nth-child(2) {
  width: 45%;
}

.xitong3>div:nth-child(3)>div:nth-child(2) img {
  width: 100%;
}

.xitong3 div:nth-child(3)>div span {
  margin-left: calc(100% - 100px);
}

.xitong3 p {
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  line-height: 1.5rem;
}

.xitong3 img {
  width: 837px;
}

.xitong3 .bottom-bigimg {
  padding: 8rem 10rem;
  margin: auto;
}

.xitong3 .bottom-bigimg img {
  width: 100%;
}