.sec-cont {
  width: 1200px;
  margin: 0 auto;
}

.bg {
  width: 100%;
  height: 400px;
  overflow: hidden;
  background-image: url('../images/join-bg.jpg');
  background-size: cover;
  background-position: center;
}

.aim{
  width: 100%;
  height: 588px;
  overflow: hidden;
  background-image: url('../images/join-bg1.jpg');
  background-size: cover;
  background-position: center;
}
.aim .sec-cont {
  width: 1080px;
  height: 588px;
  margin: 0 auto;
  overflow: hidden;
}

.aim .title {
  height: 54px;
  font-weight: 400;
  font-size: 30px;
  color: #162F3E;
  line-height: 54px;
  text-align: center;
  margin: 64px 0 23px;
}

.aim .sequence {
  height: 30px;
  font-weight: 400;
  font-size: 16px;
  color: #3D3D3D;
  line-height: 32px;
  margin-bottom: 11px;
}

.aim .aim-txt {
  text-indent: 2em;
  height: 76px;
  font-weight: 400;
  font-size: 16px;
  color: #3D3D3D;
  line-height: 32px;
  margin-bottom: 15px;
}

.apply {
  width: 100%;
  height: 617px;
  overflow: hidden;
  background-image: url('../images/join-bg2.jpg');
  background-size: cover;
  background-position: center;
}

.apply .apply-title {
  height: 54px;
  font-weight: 400;
  font-size: 30px;
  color: #162F3E;
  line-height: 54px;
  text-align: center;
  margin: 92px 0 73px;
}

.apply .apply-img {
  margin: 0 auto;
  width: 546px;
  height: 278px;
}

.apply .apply-img img {
  width: 100%;
  height: 100%;
}