.quality .banner {
    background: url(/assets/img/zhiliang.jpg) no-repeat center;
    height: 320px;
    text-align: center;
}

.quality .banner h1 {
    line-height: 320px;
    font-size: 60px;
    letter-spacing: 2px;
    color: #ffffff;
    text-shadow: rgba(0, 0, 0, 0.66) 0px 3px 11px;
}

.quality .img-box {
    box-shadow: 0px 0px 10px #666;
    border-radius: 11px;
    min-height: 458px;
}

.quality .des {
    padding: 8px;
    font-size: 14px;
    color: #666;
}

.quality h2 {
    text-align: center;
    color: #666666;
    font-size: 18px;
}

@media (max-width:576px) {
    .quality .banner h1 {
        font-size: 45px;
    }
}