.main {
  width: 100%;
  background: url(../img/bg.png) no-repeat center;
}
.main .title {
  font-size: 24px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #333333;
  line-height: 50px;
  text-align: center;
  margin: 25px auto;
}
.main .content .img {
  text-align: center;
  margin-top: 35px;
  background: rgba(162, 38, 36, 0.06);
  border: 1px solid #A22624;
  border-radius: 8px;
  padding: 75px 172px 63px;
}
.main .content .img .pic3 {
  margin-top: 88px;
}
.main .content img {
  max-width: 100%;
}
.main .content .txt {
  text-indent: 2em;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #666666;
  line-height: 30px;
}
@media (max-width: 750px) {
  .main {
    background: none;
  }
  .main .title {
    font-size: 0.32rem;
    line-height: 0.5rem;
    margin: 0.3rem auto;
  }
  .main .content .img {
    margin-top: 0.5rem;
    background: rgba(162, 38, 36, 0.06);
    border: 1px solid #A22624;
    border-radius: 8px;
    padding: 0.5rem 1rem 0.6rem;
  }
  .main .content .img .pic3 {
    margin-top: 0.8rem;
  }
  .main .content .txt {
    font-size: 0.3rem;
    line-height: 0.45rem;
  }
}