.img-fill{width:100%;display:block}
.banner{margin-top:5.3rem}
.item_box{display:flex;flex-wrap:wrap}
.content {
    width: 40%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding:0 10rem;
    background:#ffffff
}
.content_txt{position:relative}
.title {
    font-family: 'SourceHanSerifCN-Heavy';
    font-size: 4rem;
}
.icon_eng {
    position: absolute;
    top: 50%;
    left: 20%;
    width: 115%;
}
.norm_desc{font-size:1.5rem}
.line {
    width: 5rem;
    height: 3px;
    background: #6e8d4a;
    margin: 4rem 0 1.5rem;
}
.desc{font-size:1rem}
.picture{width:60%}
.footer{margin-top:0}
@media screen and (max-width:700px) {
    body{background:#f3f3f3}
    .wrap{padding:10rem 8% 0;}
    .item_box:nth-child(odd){flex-direction:column-reverse}
    .item_box>div{width:100%}
    .content {
        padding: 3rem;
        margin-bottom: 5rem;
    }
}