.banner {
  height: 280px;
  background-image: url('../images/ke/banner.png');
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
body {
  overflow-x: hidden;
}
.banner .desc {
  width: 279px;
  height: 46px;
  line-height: 46px;
  border-radius: 130px;
  margin-top: 17px;
  font-size: 16px;
  text-align: center;
  background: linear-gradient(90deg, rgba(244, 244, 244, 0.3) 0%, rgba(14, 112, 255, 0.3) 100%);
}
.banner h3 {
  font-weight: 500;
  font-size: 48px;
  margin-left: -21px;
}
.banner .title {
  display: flex;
  align-items: center;
}
.bottom-bg {
  margin-top: 20px;
  margin-bottom: 20px;
}
.four-application {
  height: 822px;
  background-color: #fff;
}
.four-application .title {
  font-size: 28px;
  padding-top: 84px;
  padding-bottom: 62px;
  font-weight: 400;
  text-align: center;
}
.application-list {
  display: flex;
}
.application-list .item-application {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.application-list .item-application:hover img {
  transform: scale(1.1);
}
.application-list .item-application img {
  width: 100%;
}
.application-list .item-application + .item-application {
  margin-left: 20px;
}
.application-list .item-application .desc-warp {
  width: 280px;
  height: 205px;
  background-image: url('../images/screen/app-bg.png');
  margin-top: -91px;
  padding-top: 47px;
  text-align: center;
  z-index: 999;
  position: relative;
}
.desc-warp p {
  font-size: 18px;
}
.desc-warp span {
  color: #5D6B80;
  font-size: 14px;
}
.desktop-desc {
  text-align: center;
  padding-top: 119px;
}
.desktop-desc h3 {
  font-size: 28px;
  font-weight: 400;
}
.desktop-desc .desc-text {
  margin-top: 17px;
  color: #5D6B80;
  font-size: 16px;
}
.scenarios {
  height: 768px;
  background-color: #F5F7FA;
}
.scenarios .header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 60px;
}
.scenarios .header h3 {
  font-size: 28px;
  font-weight: 400;
}
.scenarios .header .tab-list {
  display: flex;
}
.scenarios .header .tab-list .item-tab {
  width: 153px;
  height: 60px;
  background-color: #fff;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.scenarios .header .tab-list .item-tab.active {
  border: 1px solid #2870EE;
  color: #2870EE;
}
.scenarios .header .tab-list .item-tab + .item-tab {
  margin-left: 31px;
}
.scenarios .scenarios-warp {
  width: 1005;
  height: 438px;
  background-image: url('../images/screen/scenarios-bg.png');
  margin-top: 77px;
  display: flex;
  align-items: center;
}
.scenarios .scenarios-warp .left-img {
  padding-left: 18px;
  overflow: hidden;
}
.scenarios .scenarios-warp .right-text {
  padding-left: 60px;
  padding-right: 40px;
  flex: 1;
}
.scenarios .scenarios-warp .right-text p {
  font-size: 14px;
}
.scenarios .scenarios-warp .right-text .text {
  margin-top: 21px;
  line-height: 22px;
  color: #73757D;
}
.scenarios .scenarios-warp .right-text h3 {
  padding-top: 69px;
  font-size: 30px;
  font-weight: 400;
  color: #2870EE;
}
.scenarios .btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 131px;
}
.scenarios .btn button {
  width: 140px;
  height: 50px;
  border: 1px solid #2870EE;
  color: #2870EE;
  font-size: 16px;
  background-color: transparent;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.scenarios .btn button img {
  margin-left: 10px;
}
.screen-production {
  height: 638px;
  display: flex;
  align-items: center;
}
.screen-production .basic-width {
  display: flex;
}
.screen-production .right-text {
  padding-left: 48px;
}
.screen-production .right-text h3 {
  font-size: 28px;
  font-weight: 400;
}
.screen-production .right-text .text-desc {
  margin-top: 17px;
  line-height: 27px;
  color: #5D6B80;
}
.production .basic-width {
  display: flex;
}
.production {
  height: 547px;
  background-color: #F5F7FA;
  display: flex;
  align-items: center;
}
.production .left-production-text h3 {
  font-size: 28px;
  font-weight: 400;
}
.production .left-production-text {
  padding-right: 68px;
}
.production .left-production-text .desc {
  margin-top: 17px;
  color: #5D6B80;
  line-height: 27px;
}