.banner {
    background: url(../images/aboutUs.png) no-repeat;
    background-size: 100% 100%;
}

.banner .sec {
    padding-top: 1.63rem;
}

.banner .title {
    font-size: 24px;
}
.banner .title1{
    text-shadow: 5px 5px 5px rgba(220, 224, 255, .44);
}
.banner .title--en{
    font-size: 12px;
    padding: .1rem;
    width: 5.71rem;
    border-bottom: 1px solid #fff;
    text-align: left;
    margin: .1rem auto .2rem;
    text-align-last: justify;
    letter-spacing: .03rem;
}
.banner .title3 {
    font-size: 12px;
}
.menu{
    background-color: rgba(28, 35, 39, .6);
    height: .6rem;
    margin-top: -.6rem;
}
.menu-item{
    width: 25%;
    float: left;
    text-align: center;
    line-height: .6rem;
    color: #fff;
    display: block;
    height: .61rem;
}
.menu-item.active{
    background-color: #4fc1f1;
}