html{
    background: #f7f6f5;
}
.go-back{
    position: absolute;
    top:50%;
    left: 2.6667vw;
    width: 6vw;
    height: 6vw;
    background: url(../images/back.png) no-repeat;
    background-size:100% 100%; 
    transform: translateY(-50%);
}
.header{
    position: relative;
    width: 100%;
    height: 12vw;
    
}
.go-title{
    font-size: 4.8vw;
    color: #292828;
    margin-left: 8.2667vw;
    line-height: 12vw;
}
.banner img{
    width: 100%;
}
.banner{
    position: relative;
}

.title-wrap{
    position: absolute;
    left: 0;
    bottom: 0;
    width: 66.9333vw;
    height: 10vw;
    background: url(../images/arrow-title.png) no-repeat;
    background-size:100% 100%; 
}
.title-wrap p{
    color: #ffffff;
}
.single{
    width: 98%;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap
}

.row{
    width: 88%;
     margin: 0 auto;
    display: flex;
    justify-content: space-between;
    margin-bottom: 4.2667vw;
}
.file-item{
    border-radius: 1.3333vw;
}
.file-item img{
    width: 41.4667vw;
    height: 28.1333vw;
    background: red;
    /* border:1px solid red; */
    border-radius: 1.3333vw;

   
}
.file-wrap-title{
    width: 100%;
   height: 16.5333vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

   
}
.file-wrap-title h1{
    font-size: 4.5333vw;
    font-weight: 400;
    color: #262626;
  
}
.file-wrap-title img{
    width: 26.9333vw;
    height: 3.4667vw;
   
}