.bannder {
  height: 560px;
  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%);
}
.two-box {
  height: 274px;
  max-width: 100%;
  min-width: 1200px;
}
.two-box .wrap .top {
  margin-top: 75px;
}
.three-box {
  height: 700px;
  background: #F8FAFC;
  max-width: 100%;
  min-width: 1200px;
}
.three-box .top {
  margin-top: 75px;
}
.three-box .content {
  position: relative;
  margin: 0 auto;
}
.three-box .content .img {
  width: 600px;
  height: 363px;
  position: relative;
  margin: 85px auto;
}
.three-box .content .img {
  width: 600px;
  height: 363px;
  position: relative;
  margin: 85px auto;
}
.three-box .content .tip-box {
  width: 291px;
}
.three-box .content .tip-box .title-wrap {
  display: flex;
  height: 44px;
  justify-content: flex-start;
  align-items: center;
  font-size: 22px;
  font-weight: 700;
  color: #097BFF;
  line-height: 22px;
}
.three-box .content .tip-box .text-wrap {
  margin-top: 16px;
  font-size: 16px;
  color: #333333;
  line-height: 24px;
}
.three-box .content .left-top {
  position: absolute;
  top: -78px;
  left: 0;
  /* left: calc((100% - 600px) / 2 - 291px); */
}
.three-box .content .left-bottom {
  position: absolute;
  top: 212px;
  /* left: calc((100% - 600px) / 2 - 291px); */
  left: 0;
}
.three-box .content .right-top {
  position: absolute;
  top: -78px;
  /* left: calc((100% + 600px) / 2); */
  right: 0;
}
.three-box .content .right-bottom {
  position: absolute;
  top: 212px;
  right: 0;
}
.four-box {
  height: 2019px;
  background: #fff;
  max-width: 100%;
  min-width: 1200px;
}
.four-box .top {
  margin-top: 75px;
}
.four-box .title-box {
  height: 88px;
}
.four-box .title-box .text-group{
  margin-left: 6px;
}
.four-box .title-icon {
  width: 36px;
  height: 22px;
  margin-top: 52px;
}
.four-box .title-bg {
  width: 78px;
  height: 88px;
}
.four-box .title-text {
  color: rgba(17, 17, 17, 1);
  font-size: 26px;
  font-weight: 700;
  line-height: 28px;
  margin: 46px 0 0 -77px;
}
.four-box .line {
  background-color: rgba(220, 220, 220, 1);
  width: 100%;
  height: 1px;
  margin-top: 16px;
}
.four-box .tip-box {
  height: 28px;
  margin-top: 31px;
}
.four-box .tip-box .col-line {
  background-color: rgba(9, 123, 255, 1);
  width: 4px;
  height: 24px;
  margin-top: 2px;
}
.four-box .tip-box .title {
  margin-left: 10px;
  color: rgba(9, 123, 255, 1);
  font-size: 20px;
  font-weight: 700;
  line-height: 28px;
}
.four-box .desc-text {
  font-size: 15px;
  font-weight: 400;
  color: #333333;
  line-height: 28px;
}
.four-box .margin-top {
  margin-top: 62px;
}
.four-box .first-section {
  width: 1200px;
  height: 421px;
  margin-top: 60px;
}
.four-box .text-box {
  width: 551px;
}
.four-box .first-img {
  width: 550px;
  height: 420px;
}
.four-box .second-section {
  width: 1200px;
  height: 836px;
  margin-top: 60px;
}
.four-box .second-img {
  width: 550px;
  height: 830px;
}
.four-box .third-section {
  width: 1200px;
  height: 345px;
  margin-top: 60px;
}
.four-box .third-img {
  width: 550px;
  height: 340px;
}
.five-box {
  height: 565px;
  background: #F8FAFC;
  max-width: 100%;
  min-width: 1200px;
}
.five-box .top {
  margin-top: 75px;
}
.five-box .content {
  margin-top: 60px;
  width: 1200px;
  height: 313px;
}

.center {
  text-align: center;
}
.center .title {
  font-size: 32px;
  color: #111;
  font-family: Microsoft YaHei;
  font-weight: 700;
}
.center .title-fa {
  font-family: Microsoft YaHei;
  font-size: 40px;
  color: #FFFFFF;
  font-weight: 400;
}
.center .title-ele {
  color: #B7D5FD;
  font-size: 24px;
  font-weight: bold;
}
.center .desc {
  margin-top: 27px;
  color: #666;
  font-size: 16px;
  line-height: 28px;
}
.center .op {
  opacity: 0.5;
}
.wrap {
  width: 1200px;
  margin: 0 auto;
  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;
}
.flex-start {
  display: flex;
  justify-content: flex-start;
}