.introduce,
.join {
  text-align: center;

}

.banner {
  margin-top: 70px;
}

.introduce {
  margin-top: 183px;
  color: #656b6f;
}

.join {
  margin-top: 88px;
}

h1 {
  font-size: 26px;
  display: block;

  font-weight: 700;
  letter-spacing: 1px;

}

.introduce span,
.join span {
  font-size: 18px;
  display: block;
}

.introduce .line,
.join .line {
  width: 48px;
  height: 1px;
  border: 1px solid #dcbd9a;
  margin: 14px auto;
}

.introduce p,
.join p {
  width: 1200px;
  margin: 30px auto 184px;
  font-size: 14px;
  letter-spacing: 1px;
}

.adv {
  display: flex;
}

.adv img {
  width: 50%;
}

.adv .info {
  width: 50%;
  padding-left: 70px;
  padding-top: 96px;
}

.adv .info p {
  font-size: 14px;
  letter-spacing: 4px;
  width: 530px;
}

.kehu h1 {
  width: 100%;
  text-align: center;
}

.kehu {
  height: 600px;
  background-color: #f8F8F8;
  padding-top: 127px;
}

.kehu img {
  width: 241px;
  height: 82px;
  margin-top: 65px;
}

.kehu .info {
  width: 1200px;
  margin: 0 auto;
}

.kehu .info .item {
  margin-top: 80px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}



@media (max-width: 768px) {
  h1 {
    font-size: 18px;
  }

  .introduce span,
  .join span {
    font-size: 14px;
  }


  .banner {
    margin-top: 50px;
  }

  .introduce {
    margin-top: 80px;
  }

  .introduce p,
  .join p {

    font-size: 12px;
    letter-spacing: 1px;
    width: 90%
  }

  .introduce p {
    margin-top: 15px;
    margin-bottom: 92px;
  }

  .adv img {
    height: 300px;
  }

  .adv .info {
    padding-left: 28px;
    padding-top: 30px;
  }

  .adv .info p {
    font-size: 12px;
    letter-spacing: 2px;
    width: 100%;
  }

  .kehu {
    height: 550px;
    padding-top: 60px;
  }

  .kehu .info {
    width: 90%;
  }

  .kehu img {
    width: 160px;
    margin-top: 20px;
  }

  .kehu .info .item {
    margin-top: 30px;
  }

  .join {
    margin-top: 30px;
  }

  .join p {
    margin-bottom: 60px;
  }


}