.banner {
  height: 680px;
  background: url('../img/about/1.png') no-repeat center center;
}
.content {
  padding-bottom: 50px;
}
.content .tab {
  border-bottom: 3px solid #EAEAEA;
  height: 70px;
}
.content .tab span {
  display: inline-block;
  padding: 0 20px;
  font-size: 16px;
  color: #333;
  position: relative;
  line-height: 70px;
  font-weight: bold;
}
.content .tab span.on {
  color: #007EFF;
}
.content .tab span.on i {
  background: #007EFF;
}
.content .tab span i {
  left: 0;
  bottom: -2px;
  width: 100%;
  position: absolute;
  height: 3px;
  background: #EAEAEA;
}
.content .info {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 37px;
}
.content .info .info_left {
  width: 665px;
  height: 514px;
  background: url('../img/about/2.png') no-repeat center center;
}
.content .info .info_right {
  width: 540px;
  padding-top: 24px;
}
.content .info .info_right h2 {
  font-size: 32px;
  color: #333;
  margin-bottom: 10px;
}
.content .info .info_right p {
  font-size: 20px;
  color: #333;
}
.content .culture {
  margin-top: 100px;
}
.content .culture h2 {
  font-size: 32px;
  color: #333;
  margin-bottom: 40px;
}
.content .culture ul {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.content .culture ul li {
  width: 386px;
  height: 518px;
  padding-top: 80px;
  padding-left: 38px;
  box-sizing: border-box;
}
.content .culture ul li:nth-child(1) {
  background: url('../img/about/3.png') no-repeat center center;
}
.content .culture ul li:nth-child(2) {
  background: url('../img/about/4.png') no-repeat center center;
}
.content .culture ul li:nth-child(3) {
  background: url('../img/about/5.png') no-repeat center center;
}
.content .culture ul li h3 {
  font-size: 36px;
  color: #333;
}
.content .culture ul li .en_txt {
  font-size: 24px;
  color: #C5D0E5;
}
.content .culture ul li .line {
  width: 48px;
  height: 5px;
  background: #007EFF;
  margin-top: 10px;
  margin-bottom: 20px;
}
.content .culture ul li .txt {
  font-size: 20px;
  color: #333;
}
.content .culture .concept {
  width: 1200px;
  height: 440px;
  background: url('../img/about/6.png') no-repeat center center;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.content .culture .concept .concept_left {
  padding-top: 100px;
  padding-left: 40px;
}
.content .culture .concept .concept_left h3 {
  font-size: 36px;
  color: #333;
}
.content .culture .concept .concept_left .en_txt {
  font-size: 24px;
  color: #C5D0E5;
}
.content .culture .concept .concept_left .line {
  width: 48px;
  height: 5px;
  background: #007EFF;
  margin-top: 10px;
  margin-bottom: 20px;
}
.content .culture .concept .concept_left .txt {
  font-size: 20px;
  color: #333;
}
.content .culture .concept .concept_right {
  width: 600px;
  height: 260px;
  background: rgba(255, 255, 255, 0.8);
  margin-right: 75px;
  margin-top: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.content .culture .concept .concept_right .txt p {
  color: #333;
  font-size: 20px;
  line-height: 2.5em;
}
.content .culture .concept .concept_right .txt p span {
  color: #007EFF;
}