.container{

}
.item{
    padding:0 2.6667vw;
}
.item a{
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    height: 13.3333vw;
   
    /* background: red; */
    border-bottom:1px solid #eeeeee;
    line-height: 13.3333vw;
    box-sizing: border-box;
    font-size: 3.7333vw;
    font-weight: 700;

}
.item:last-child>a{
    border-bottom:none;
}
.icon-father,.icon-children{
    display: inline-block;
    width: 5.3333vw;
    height: 5.3333vw;
    background: gray;
    margin-right: 2.6667vw;
}
.icon-father{
    background: url(../images/father.png) no-repeat;
    background-size: 100% 100%; 

}
.icon-children{
    background: url(../images/children.png) no-repeat;
    background-size: 100% 100%; 
}
.icon-arrow{
    position: absolute;
    right: 2.6667vw;
    display: flex;
    width: 4vw;
    height: 4vw;
    background: gray;
    background: url(../images/right.png) no-repeat;
    background-size: 100% 100%; 

}

/* header */
header{
    position: relative;
    display: flex;
    width: 100%;
    height: 11.2vw;
    line-height: 11.2vw;
    align-items: center;
    
}
h1{
    font-size: 4vw;
    font-weight: 700;
}
.left-arrow{
    display: inline-block;
    background: red;
    width: 6.5333vw;
    height: 6.5333vw;
    margin-left: 4.6667vw;
    margin-right: 5.8667vw;
    background: url(../images/returnIcon.png) no-repeat;
    background-size:100% 100%; 
}
.line{
    display: inline-block;
    height: 7.7333vw;
    width: 0.8vw;
    margin-right: 6.1333vw;
   
   background: url(../images/nav_bg_icon.png) no-repeat center;
   background-size :cover; 
}
header a{
    position: absolute;
    right: 4.6667vw;
   
    display: flex;
    align-items: center;
    justify-content: center;
    
   
}
.home-word{
    font-size: 4.8vw;
    color: #005fd8;
    font-weight: 700;
    margin-left: 1.3333vw;
}
.home{
    display: inline-block;
    background: url(../images/home.png) no-repeat;
    background-size:100% 100% ;
    width: 8.5333vw;
    height: 8.5333vw;
    
}
.banner{
    width: 100%;
    height: 33.6vw;
}