/* 单独处理头部样式 */
.main .header-box {
  background: transparent;
  transition: background-color 0.8s;
  -ms-transition: background-color 0.8s; /* IE 9 */
  -moz-transition: background-color 0.8s; /* Firefox */
  -webkit-transition: background-color 0.8s; /* Safari 和 Chrome */
  -o-transition: background-color 0.8s; /* Opera */
}
.banner {
  height: 520px;
  background: url('../../images/operation/banner-bg-1.png') no-repeat center / cover;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 210px;
}
.banner .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 48px;
  color: #FFFFFF;
  line-height: 67px;
  margin-bottom: 60px;
  letter-spacing: 3px;
}
.banner .btn {
  width: 160px;
  height: 48px;
  background: #3377FF;
  box-shadow: 0 10px 20px 0 #3377ff33;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  letter-spacing: 1px;
}
/* 挑战 */
.challenge {
  background: #E4EEFF;
}
.challenge .container {
  width: 1200px;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 80px 0;
}
.challenge .container > .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 36px;
  color: #17294D;
  letter-spacing: 1px;
  text-align: center;
  margin-bottom: 60px;
}
.challenge .container .list {
  width: 100%;
  height: 356px;
  display: flex;
  justify-content: space-between;
}
.challenge .container .list .item {
  width: 380px;
  height: 356px;
  background: #FFFFFF;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
  padding-top: 60px;
}
.challenge .container .list .item .icon {
  width: 88px;
  height: 88px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  margin-bottom: 32px;
}
.challenge .container .list .item:nth-child(1) .icon {
  background-image: url('../../images/operation/challenge-ic-1.png');
}
.challenge .container .list .item:nth-child(2) .icon {
  background-image: url('../../images/operation/challenge-ic-2.png');
}
.challenge .container .list .item:nth-child(3) .icon {
  background-image: url('../../images/operation/challenge-ic-3.png');
}
.challenge .container .list .item .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 24px;
  color: #17294D;
  letter-spacing: 0;
  line-height: 33px;
  margin-bottom: 16px;
}
.challenge .container .list .item .desc {
  font-family: PingFangSC-Regular;
  font-weight: 400;
  font-size: 16px;
  color: #5A5C5F;
  letter-spacing: 0;
  line-height: 22px;
  text-align: center;
}
/* 深度范围 */
.range {
  background: #F3F7FF;
}
.range .container {
  width: 1200px;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 80px 0;
}
.range .container > .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 36px;
  color: #17294D;
  letter-spacing: 1px;
  text-align: center;
  line-height: 50px;
  margin-bottom: 60px;
}
.range .container .list .item {
  position: relative;
  margin-bottom: 9px;
}
.range .container .list .item .chart {
  position: relative;
  z-index: 1;
  width: 573px;
  display: flex;
  justify-content: center;
}
.range .container .list .item .chart .text {
  background-repeat: no-repeat ;
  background-position: 0 0 ;
  background-size: 100% 100% ;
  color: #fff;
  text-align: center;
  font-size: 18px;
  box-sizing: border-box;
  transition: all ease 0.3s;
}
.range .container .list .item .chart .text.active {
  transform: scale(1.1);
}
.range .container .list .item:nth-child(1) .chart .text {
  width: 118px;
  height: 129px;
  background-image: url('../../images/operation/range-bg-1.png');
  padding-top: 70px;
  line-height: 24px;
}
.range .container .list .item:nth-child(2) .chart .text {
  width: 256px;
  height: 130px;
  background-image: url('../../images/operation/range-bg-2.png');
  padding-top: 60px;
  line-height: 24px;
}
.range .container .list .item:nth-child(3) .chart .text {
  width: 394px;
  height: 130px;
  background-image: url('../../images/operation/range-bg-3.png');
  padding-top: 77px;
}
.range .container .list .item:nth-child(4) .chart .text {
  width: 573px;
  height: 171px;
  background-image: url('../../images/operation/range-bg-4.png');
  padding-top: 118px;
}
.range .container .list .item .desc {
  position: absolute;
  right: 0;
  bottom: 10px;
  display: flex;
  align-items: center;
}
.range .container .list .item .desc .circle {
  width: 9px;
  height: 9px;
  background: #B3CCFF;
  border-radius: 50%;
  margin: 0 8px;
}
.range .container .list .item .desc .line {
  height: 0px;
  border: 1px dashed #B6CEFF;
  width: 400px;
}
.range .container .list .item .desc .box {
  width: 516px;
  padding: 7px 12px;
  background: #E0EBFF;
  font-size: 16px;
  color: #919399;
  line-height: 30px;
  cursor: pointer;
}
.range .container .list .item:nth-child(1) .desc {
  bottom: 0px;
}
.range .container .list .item:nth-child(2) .desc {
  bottom: 5px;
}
.range .container .list .item:nth-child(3) .desc {
  bottom: 0px;
}
.range .container .list .item:nth-child(4) .desc {
  bottom: 25px;
}
.range .container .list .item .desc.active .circle{
  background: #3377FE;
}
.range .container .list .item .desc.active .box{
  background: #3377FE;
  color: #fff;
}
/* 流程 */
.flow {
  background: #E4EEFF;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 0 56px;
}
.flow > .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 36px;
  color: #17294D;
  letter-spacing: 1px;
  text-align: center;
  line-height: 50px;
  margin-bottom: 24px;
}
.flow > .desc {
  font-family: PingFangSC-Regular;
  font-weight: 400;
  font-size: 20px;
  color: #535E75;
  letter-spacing: 0;
  text-align: center;
  margin-bottom: 64px;
  line-height: 28px;
}
.flow .list .item {
  width: 900px;
  background-image: linear-gradient(270deg, #62AFFF 0%, #3377FE 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  margin-bottom: 24px;
  padding: 4px 0;
}
.flow .list .item .left {
  flex: none;
  width: 156px;
  text-align: center;
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 24px;
  color: #FFFFFF;
  letter-spacing: 1px;
}
.flow .list .item .right {
  width: 740px;
  background: rgba(255,255,255,0.95);
  border-radius: 8px;
  box-sizing: border-box;
  padding: 22px 0 16px 32px;
}
.flow .list .item .right .header {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 18px;
  color: #17294D;
  line-height: 25px;
  margin-bottom: 6px;
}
.flow .list .item .right .body {
  font-family: PingFangSC-Regular;
  font-weight: 400;
  font-size: 16px;
  color: #616266;
  line-height: 34px;
}
.flow .list .item .right .body .text {
  margin: 0 24px 12px 0;
}
/* 评测 */
.survey {
  height: 411px;
  padding-top: 93px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: url('../../images/operation/survey-bg-1.png') no-repeat center / 100% 411px;
}
.survey > .title {
  font-family: PingFangSC-Medium;
  font-weight: 700;
  font-size: 36px;
  color: #17294D;
  letter-spacing: 0;
  text-align: center;
  line-height: 50px;
  margin-bottom: 24px;
}
.survey > .desc {
  font-family: PingFangSC-Regular;
  font-weight: 400;
  font-size: 20px;
  color: #535E75;
  letter-spacing: 0;
  text-align: center;
  line-height: 28px;
  margin-bottom: 75px;
}
.survey .btn-wrapper {
  display: flex;
  justify-content: center;
}
.survey .btn-wrapper .btn {
  width: 136px;
  height: 48px;
  border: 1px solid #3377FF;
  border-radius: 4px;
  cursor: pointer;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3377FF;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
}
.survey .btn-wrapper .btn.active {
  background: #3377FF;
  color: #fff;
  margin-right: 24px;
  box-shadow: 0 10px 20px 0 #3377ff33;
}