body {
    margin: 0 0;
}

.nav {
    width: 750px;
    margin: 0 auto;
    height: 72px;
}

.line {
    width: 24px;
    height: 3px;
    background: #F23939;
    margin: 0 auto;
    margin-top: -11px;
}

.nav img {
    width: 45px;
    height: 45px;
    float: left;
}

.nav ul {
    margin-left: 50px;
}

.nav ul li {
    width: 90px;
    float: left;
    text-align: center;
    list-style: none;
    font-size: 14px;
    color: #282828;
    line-height: 50px;
    cursor: pointer;
}

span {
    line-height: 50px;
}

.indexMain img {
    width: 100%;
}

.bottom {
    /* width: 100%; */
    padding: 20px 0;
    /* height: 62px; */
    /* line-height: 62px; */
    background: #222222;
    text-align: center;
    color: #999999;
}