.nav-box {
  height: 66px;
  background: #000000;
  line-height: 66px;
  padding: 0 9%;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  div {
    margin-right: 56px;
    cursor: pointer;
  }
}
.nav-box-active {
  color: #13ACC4 !important;
}

.top-box {
  overflow: hidden;
  background: -webkit-linear-gradient(left, #6569FA , #13ACC4);
  position: relative;
}
.top-title {
  position: absolute;
  top: 70px;
  left: 4%;
  padding: 0;
  font-size: 50px;
  color: #fff;
}
.top-content {
  float: right;
  margin: 70px 0;
  margin-right: 12%;
  width: 60%;
  padding: 0;
  font-size: 16px;
  color: #fff;
  line-height: 36px;
}

.circular {
  height: 20px;
  width: 20px;
  background: #13ACC4;
  border-radius: 50%;
  top: 50%;
  margin-top: -10px;
  position: absolute;
}

.center-box {
  overflow: hidden;
  background: #fff;
  padding: 0 9%;
  position: relative;
}
.center-title {
  position: absolute;
  top: 40%;
  font-size: 30px;
  color: #000;
}
.center-content {
  float: right;
  margin: 160px 0;
  width: 79%;
  line-height: 36px;
  font-size: 16px;
}



.bottom-box {
  // height: 830px;
  overflow: hidden;
  position: relative;
  padding: 0 9%;
}
.bottom-title {
  position: absolute;
  top: 20%;
  font-size: 30px;
  color: #000;
}
.bottom-content {
  float: right;
  margin: 100px 0;
  width: 79%;
}

.partner-box {
  // height: 1060px;
  overflow: hidden;
  position: relative;
  padding: 0 9%;
  background: #fff;
}
.partner-title {
  position: absolute;
  top: 15%;
  font-size: 30px;
  color: #000;
}
.partner-content {
  float: right;
  margin: 100px 0;
  width: 79%;
}

.join-box {
  // height: 300px;
  overflow: hidden;
  position: relative;
  padding: 0 9%;
}
.join-title {
  position: absolute;
  top: 40%;
  font-size: 30px;
  color: #000;
}
.join-content {
  float: right;
  margin: 70px 0;
  font-size: 16px;
  width: 79%;
  color: rgba(0,0,0,0.65);
  line-height: 36px;
}

.content-box {
  position: relative;
  padding: 0 9%;

}
.introduce-box {
  width: 60%;
  overflow: hidden;
  position: relative;
  background: #fff;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16)
  cursor: pointer;
  padding: 30px;
}
.introduce-title {
  margin-top: 24px;
  font-size: 30px;
  color: rgba(0,0,0,0.85);
}
.introduce-content {
  font-size: 16px;
  color: rgba(0,0,0,0.65);
}