body{
    zoom:1;
  }
  .inner{
    width: 1130px;
  }
  .logo{
    height: 51px;
    padding:8px 0;
    display: inline-block;
  }
  .logo img{ 
    height: 100%;
  }

  .banner{
    height: 485px;
    background: url(../images/library/banner.jpg) top center no-repeat;
  }

  .banner h1{ 
    font-size:54px;
    letter-spacing: 10px;
    color: #fff;
    text-align: center;
    padding-top: 67px;
    font-weight: 800;

  }
  .banner .inner{ 
    display: flex;
    justify-content: space-between;
    position: relative;    
    margin-top: 44px;
  }
  .banner .inner .text{
    width:calc(860px - 50px);
    height: 200px;
    border:1px solid #fff;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.7);
    padding: 27px 25px;
    line-height: 2.1;
    font-size: 16px;
  }
  .banner .inner .text p{ 
    text-indent: 2em;
    margin-bottom: 20px;
  }
  .banner .inner .btns{
    width: 248px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .banner .inner .btns a{
    width: 100%;
  }

  .layer1{
    width:calc(861px - 60px);
    height: 175px;
    position:absolute;
    left:0;
    top:0;
    background:#fff;
    z-index:999999;
    border:0px solid #dcdcdc;
    display: none;
    /* 做个阴影效果 */
    /* -webkit-box-shadow: 0 0 10px #00279c;
    -moz-box-shadow: 0 0 10px #00279c;
    box-shadow: 0 0 10px #00279c; */
    border-radius: 10px;
    padding:40px 30px;
  }
  .layer1 p{
    text-indent: 2em;
    line-height: 2.1;
    margin-bottom:10px;
  }

  
  .content{
    display: flex;
    flex-wrap: wrap;
    padding:30px 0;
    position: relative;
  }
  .content li{
    width: 210px;
    height:122px;
    float: left;
    margin:0px 20px 20px 0px;
  }
  .content li:nth-child(5n){ 
    margin-right:0;
  }
  .content li a{
    display: block;
    width: 100%;
    height: 100%;
  }
  .content li img{
    width: 205px;
    height: 118px;
    border:2px #fff solid;
  }
  .content li img:hover{
    border:2px #00279c solid;
  }


  .layer{
    width:1124px;
    min-height:100px;
    position:fixed;
    left:auto;
    background:#fff;
    z-index:999999;
    border:0px solid #dcdcdc;
    display: none;
    /* 做个阴影效果 */
    -webkit-box-shadow: 0 0 10px #00279c;
    -moz-box-shadow: 0 0 10px #00279c;
    box-shadow: 0 0 10px #00279c;
    border-radius: 10px;
  }
  .layer h2{
    font-size:22px;
    color:#333;
    font-weight: 600;
    padding:20px 0;
    text-align:center;
  }
  .layer .main{
    width:calc(100% - 60px);
    height:100%;
    font-size: 15px;
    line-height: 2.1;
    overflow:auto;
    padding:0px 30px 40px;
  }
  .layer .main p{
    text-indent: 2em;
  }