.nav-category {
    margin-top: 0px;
    overflow: hidden;
}

.nav-category ul {
    width: 1215px;
    padding: 0px;
    margin: 0px auto;
}

.nav-category li {
    float: left;
    width: 150px;
    margin-right: 14px;
    height: 150px;
    background: #ccc;
    overflow: hidden;
    margin: 26px;
}

.nav-category a {
    width: 150px;
    height: 150px;
    display: block;
    position: relative;
}

.nav-category a img {
    width: 150px;
    height: 150px;
    transition: all .4s;
    -webkit-transition: all .4s;
}

.nav-category a:hover img {
    transform: scale(1.2);
    -webkit-transform: scale(1.2);
    -moz-transform: scale(1.2);
    -ms-transform: scale(1.2);
}

.nav-category a span {
    position: absolute;
    left: 0;
    bottom: 0px;
    width: 100%;
    height: 30px;
    font-size: 13px;
    font-family: "微软雅黑";
    line-height: 30px;
    text-align: center;
    background: #00599d;
    background: rgba(0, 85, 157, 0.8);
    color: #fff;
}