.wrap {
    width: 100%;
    background: linear-gradient(#70B387, white);
  }
  header {
    height: 120px;
    color: white;
    width: 1300px;
    margin: 0 auto;
    line-height: 150px;
    padding-left: 50px;
  }
  header h1 {
    text-shadow: 2px 3px 1px #363434;
    letter-spacing: 10px;
    font-size: 40px;
  }
  .nav {
    width: 1300px;
    display: flex;
    justify-content: right;
    height: 30px;
    color: #70B387;
    margin: 0 auto;
    margin-top: -30px;
  }
  .nav li {
    width: 100px;
    height: 30px;
    background-color: aliceblue;
    border-radius: 5px;
    line-height: 30px;
    text-align: center;
    margin-left: 20px;
  }
  .banner {
    width: 1300px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
  }
  .banner ul {
    width: 100%;
    list-style: none;
    display: flex;
    position: relative;
    top: 0;
    left: 0;
    transition: all 0.7s;
  }
  .banner ul li {
    width: 100%;
    flex-shrink: 0;
  }
  .banner ul li img {
    vertical-align: bottom;
    width: 1300px;
    height: 600px;
  }
  .banner .instructions {
    width: 100%;
    height: 40px;
    background-color: rgba(253, 253, 252, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    bottom: 0px;
  }
  .banner .instructions span {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background-color: rgba(213, 221, 218, 0.5);
    margin: 0 7px;
  }
  .banner .active {
    background-color: #abe4d1 !important;
  }
  .banner .banner-nav {
    width: 100%;
    position: absolute;
    top: 230px;
    left: 0;
    display: flex;
    justify-content: space-between;
    display: none;
    transition: all 0.3s;
  }
  .banner :hover .banner-nav {
    display: flex;
  }
  .banner :hover .banner-nav a {
    width: 50px;
    height: 50px;
    font-size: 23px;
    text-align: center;
    background-color: #70B387;
    text-decoration: none;
    line-height: 50px;
    color: white;
    font-weight: bold;
    border-radius: 10px;
  }
  nav {
    width: 1300px;
    margin: 0 auto;
    height: 40px;
    background-color: #70B387;
    display: flex;
    align-items: center;
    justify-content: space-around;
  }
  nav a {
    color: white;
    font-size: 20px;
  }
  main {
    width: 1300px;
    margin: 0 auto;
    margin-top: 50px;
    justify-content: space-between;
    display: flex;
  }
  main .section1 {
    width: 31%;
    border-right: 1px solid #999;
    padding-right: 40px;
  }
  main .section1 > p {
    text-indent: 2rem;
    color: #777;
  }
  main .section1 .title {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #70B387;
    padding-bottom: 5px;
  }
  main .section1 .title h2 {
    color: #70B387;
    font-size: 20px;
  }
  main .section1 .title h2 i {
    color: #999;
    font-size: 14px;
  }
  main .section1 .title span {
    background-color: #70B387;
    color: white;
    border-radius: 5px;
    text-align: center;
    padding: 2px 5px;
  }
  main .section1 p {
    margin-top: 20px;
    line-height: 26px;
    letter-spacing: 2px;
  }
  main .section2 {
    width: 31%;
    border-right: 1px solid #999;
    padding-right: 40px;
  }
  main .section2 .title {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #70B387;
    padding-bottom: 5px;
  }
  main .section2 .title h2 {
    color: #70B387;
    font-size: 20px;
  }
  main .section2 .title h2 i {
    color: #999;
    font-size: 14px;
  }
  main .section2 .title span {
    background-color: #70B387;
    color: white;
    border-radius: 5px;
    text-align: center;
    padding: 2px 5px;
  }
  main .section2 ul li {
    display: flex;
    justify-content: space-between;
    height: 40px;
    align-items: center;
    border-bottom: 1px dashed #999;
    font-size: #777;
  }
  main .section2 ul li span {
    font-size: 14px;
    color: #999;
  }
  main .section3 {
    width: 31%;
  }
  main .section3 .title {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #70B387;
    padding-bottom: 5px;
  }
  main .section3 .title h2 {
    color: #70B387;
    font-size: 20px;
  }
  main .section3 .title h2 i {
    color: #999;
    font-size: 14px;
  }
  main .section3 .title span {
    background-color: #70B387;
    color: white;
    border-radius: 5px;
    text-align: center;
    padding: 2px 5px;
  }
  main .section3 ul li {
    display: flex;
    justify-content: space-between;
    height: 50px;
    align-items: center;
  }
  .imgList {
    width: 1300px;
    margin: 20px auto;
  }

  .imgList img:hover {
    transform: scale(1.1);
    transition:transform 0.3s ;
  }
  .imgList .title {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #70B387;
    padding-bottom: 5px;
  }
  .imgList .title h2 {
    color: #70B387;
    font-size: 20px;
  }
  .imgList .title h2 i {
    color: #999;
    font-size: 14px;
  }
  .imgList .title span {
    background-color: #3b3d3d;
    color: white;
    border-radius: 5px;
    text-align: center;
    padding: 2px 5px;
  }
  .imgList ul {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
  }
  .imgList ul li {
    width: 24%;
    height: 200px;
    text-align: center;
    color: #70B387;
    font-size: 20px;
  }
  .imgList ul li img {
    width: 100%;
    height: 100%;
    border: 1px solid #999;
    border-radius: 10px;
  }
  .to-top {
    width: 60px;
    height: 60px;
    color: #242da8;
    background: #e4e2e2;
    position: fixed;
    right: 0;
    bottom: 20px;
    border-radius: 5px;
    text-align: center;
    font-size: 20px;
    line-height: 60px;
    display: none;
  }
  footer{
    width: 1300px;
    margin: 0px auto;
    background-color: #363434;
    color: #fff;
    text-align: center;
    height: 40px;
    line-height: 40px;
  }