.bannder {
  height: 594px;
  position: relative;
  min-width: 1200px;
  margin: 0 auto;
  max-width: 1920px;
}
.bannder .bannder-img {
  width: auto;
  height: 100%;
  /* margin: 0 auto; */
  display: block;
  position: absolute;
  top: 0;
  left: 50%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
}
.section-1 {
  height: 685px;
  max-width: 100%;
  min-width: 1200px;
  background: #fff;
  position: relative;
}
.section-1 .group {
  margin-top: 60px;
  height: 450px;
}
.section-1 .group .item {
  width: 278px;
  height: 431px;
  box-shadow: 0 4px 12px 0 rgba(0,0,0,0.1);
  text-align: center;
}
.section-1 .group .item .img-bg {
  width: 278px;
  height: 203px;
  background: linear-gradient(180deg, #E3F2FF 0%, #BBDDFF 100%);
}
.section-1 .group .item .img {
  width: 168px;
  height: 168px;
  margin-top: 18px;
}
.section-1 .group .item .title {
  margin-top: 24px;
  font-size: 20px;
  color: #111;
  line-height: 26px;
}
.section-1 .group .item .line {
  margin-top: 22px;
  width: 22px;
  height: 4px;
  background: #4092FF;
  border-radius: 4px 4px 4px 4px;
}
.section-1 .group .item .desc {
  margin: 15px 12px 0;
  font-size: 13px;
  color: #666;
  line-height: 28px;
}
.section-2 {
  height: 805px;
  max-width: 100%;
  min-width: 1200px;
  background: url(/static/index/img/monitor/section-2-bg.png) no-repeat;
  background-size: 100% 100%;
  position: relative;
}
.section-2 .img {
  width: 1200px;
  height: 553px;
  margin-top: 60px;
}
.section-3 {
  height: 2028px;
  max-width: 100%;
  min-width: 1200px;
  background: #fff;
  position: relative;
}
.section-3 .group {
  position: relative;
  margin: 0 auto;
}
.section-3 .group .item {
  margin-top: 64px;
}
.section-3 .group .item .text-box {
  margin-top: 36px;
  margin-left: 25px;
  width: 500px;
}
.section-3 .group .item .text-box .title {
  font-size: 28px;
  font-weight: 700;
  color: #111111;
  line-height: 28px;
  margin-bottom: 25px;
}
.section-3 .group .item .text-box .text-item {
  margin-top: 23px;
}
.section-3 .group .item .text-box .text-item .select {
  width: 22px;
  height: 22px;
}
.section-3 .group .item .text-box .text-item .text {
  margin-left: 11px;
  font-size: 16px;
  font-weight: 400;
  color: #333333;
  line-height: 28px;
}

.center {
  text-align: center;
}
.wrap .bg-text {
  position: absolute;
  width: 400px;
  height: 36px;
  left: calc((100% - 400px) / 2);
  top: 64px;
  font-size: 26px;
  font-weight: 700;
  color: rgba(179,189,214,0.3);
  line-height: 34px;
}

.center .title {
  margin-top: 15px;
  font-size: 32px;
  color: #111;
  font-family: Microsoft YaHei;
  font-weight: 700;
}
.center .desc {
  margin-top: 27px;
  color: #666;
  font-size: 16px;
  line-height: 28px;
}
.wrap {
  width: 1200px;
  margin: 0 auto; 
  padding-top: 64px;
  overflow: hidden;
}
.wrap-no-hidden {
  width: 1200px;
  margin: 0 auto;
}
.flex-col {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-direction: column;
}
.flex-row {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-direction: row;
}
.justify-between {
  display: flex;
  justify-content: space-between;
}
.justify-around {
  display: flex;
  justify-content: space-around;
}
.flex-start {
  display: flex;
  justify-content: flex-start;
}
.align-center {
  display: flex;
  align-items: center;
}