@media screen and (min-width: 1024px) {
  .body-all-box {
    width: 1200px;
    margin: 0 auto;
  }
  .banner-img {
    width: 100%;
    height: 200px;
    background-image: url(../img/about-us-img1.jpg);
    background-position: center center;
    min-width: 1200px;
    margin-bottom: 60px;
  }
  .class-nav {
    width: 880px;
    margin: 0 auto;
    height: 60px;
    margin-bottom: 75px;
  }
  .class-nav a {
    display: block;
    width: 20%;
    float: left;
    font-size: 14px;
    height: 60px;
    background-color: #333;
    color: #C8A05A;
    line-height: 60px;
    text-align: center;
  }
  .class-nav a.act {
    background-color: #C8A05A;
    color: #fff;
  }
  .body-tit {
    width: 880px;
    margin: 0 auto;
    margin-bottom: 50px;
    font-size: 32px;
    color: #000;
    text-align: center;
    line-height: 90px;
    line-height: 88px;
    font-family: MingLiU;
    border-top: 1px solid #333;
    border-bottom: 1px solid #333;
  }
  .body-detail {
    width: 880px;
    margin: 0 auto;
  }
  .body-detail .detail {
    width: 33.333%;
    float: left;
    height: 200px;
    background-color: #ebe3d8;
    border: 1px solid #fff;
  }
  .body-detail .detail h1 {
    font-size: 20px;
    color: #333;
    text-align: center;
    line-height: 80px;
  }
  .body-detail .detail p {
    font-size: 14px;
    color: #666;
    text-align: center;
    line-height: 24px;
  }
  .body-detail .detail:nth-child(2) {
    width: 33.333%;
    float: left;
    height: 200px;
    background-color: #c8a05a;
    border: 1px solid #fff;
    position: relative;
    padding-top: 55px;
  }
  .body-detail .detail:nth-child(2) .img1 {
    position: absolute;
    top: 50px;
    left: 24px;
  }
  .body-detail .detail:nth-child(2) .img2 {
    position: absolute;
    top: 50px;
    right: 24px;
  }
  .body-detail .detail:nth-child(2) h1 {
    font-size: 28px;
    color: #fff;
    text-align: center;
    line-height: 40px;
  }
  .body-detail .detail:nth-child(2) p {
    font-size: 20px;
    color: #fff;
    text-align: center;
    line-height: 30px;
  }
  .img-footer {
    margin: 0 auto;
    width: 880px;
    margin-top: 50px;
    margin-bottom: 100px;
  }
}
@media screen and (max-width: 1023px) {
  .body-all-box {
    width: 95%;
    margin: 0 auto;
  }
  .banner-img {
    width: 100%;
    height: 2rem;
    background-image: url(../img/about-us-img1.jpg);
    background-size: auto 100%;
    background-position: center center;
    margin-bottom: .5rem;
  }
  .class-nav {
    width: 100%;
    margin: 0 auto;
    height: .8rem;
    margin-bottom: .5rem;
  }
  .class-nav a {
    display: block;
    width: 20%;
    float: left;
    font-size: .24rem;
    height: .8rem;
    background-color: #333;
    color: #C8A05A;
    line-height: .8rem;
    text-align: center;
  }
  .class-nav a.act {
    background-color: #C8A05A;
    color: #fff;
  }
  .body-tit {
    margin: 0 auto;
    margin-bottom: .5rem;
    font-size: .4rem;
    color: #000;
    text-align: center;
    line-height: 1rem;
    font-family: MingLiU;
    border-top: 1px solid #333;
    border-bottom: 1px solid #333;
  }
  .body-img {
    margin: 0 auto;
    width: 100%;
    margin-bottom: .4rem;
  }
  .body-word p {
    font-size: .24rem;
    color: #333;
    line-height: .55rem;
    margin-bottom: .3rem;
  }
  .body-detail {
    margin: 0 auto;
  }
  .body-detail .detail {
    width: 50%;
    float: left;
    height: 4rem;
    background-color: #ebe3d8;
    border: 1px solid #fff;
  }
  .body-detail .detail h1 {
    font-size: .3rem;
    color: #333;
    text-align: center;
    line-height: .8rem;
  }
  .body-detail .detail p {
    font-size: .24rem;
    color: #666;
    text-align: center;
    line-height: .55rem;
  }
  .body-detail .detail:nth-child(1) {
    width: 50%;
    float: left;
    height: 4rem;
    background-color: #c8a05a;
    border: 1px solid #fff;
    position: relative;
    padding-top: .3rem;
  }
  .body-detail .detail:nth-child(1) .img1 {
    position: absolute;
    top: .4rem;
    left: .2rem;
    height: 2rem;
    width: .3rem;
  }
  .body-detail .detail:nth-child(1) .img2 {
    position: absolute;
    top: .4rem;
    right: .2rem;
    height: 2rem;
    width: .3rem;
  }
  .body-detail .detail:nth-child(1) h1 {
    font-size: .3rem;
    color: #fff;
    text-align: center;
  }
  .body-detail .detail:nth-child(1) p {
    font-size: .24rem;
    color: #fff;
    text-align: center;
    padding: 0 .3rem;
  }
  .body-detail .detail:nth-child(2) {
    width: 50%;
    float: left;
    height: 4rem;
    background-color: #c8a05a;
    border: 1px solid #fff;
    position: relative;
    padding-top: .3rem;
  }
  .body-detail .detail:nth-child(2) .img1 {
    position: absolute;
    top: .4rem;
    left: .2rem;
    height: 2rem;
    width: .3rem;
  }
  .body-detail .detail:nth-child(2) .img2 {
    position: absolute;
    top: .4rem;
    right: .2rem;
    height: 2rem;
    width: .3rem;
  }
  .body-detail .detail:nth-child(2) h1 {
    font-size: .3rem;
    color: #fff;
    text-align: center;
  }
  .body-detail .detail:nth-child(2) p {
    font-size: .24rem;
    color: #fff;
    text-align: center;
    padding: 0 .3rem;
  }
  .img-footer {
    margin: 0 auto;
    width: 95%;
    margin-top: .5rem;
    margin-bottom: .5rem;
  }
}