.nav {
    height: 75px;
    background: url(../images/liuqu-top/t-r-b.png) repeat-x;
    padding-top: 5px;
    position: relative;
    width: 100%;
    max-width: 1920px;
    z-index: 10;
    margin: 0 auto;
}

.nav .t-logo {
    display: block;
    margin: 0 0 0 28px;
    width: 740px;
    height: 70px;
    float: left;
    background: url(../images/liuqu-top/t-logo.gif) no-repeat;
}

.r-nav-c {
    width: 654px;
    height: 37px;
    float: right;
    background: url(../images/liuqu-top/t-nav-c.png) no-repeat;
    margin-right: 28px;
    position: relative;
    margin-top: 15px;
}

.r-nav-c .al {
    width: 116px;
    height: 68px;
    float: left;
    margin-left: 12px;
    position: relative;
}

.r-nav-c a {
    width: 116px;
    height: 37px;
    display: block;
    background: url(../images/liuqu-top/t-nav.png) no-repeat;
}

.r-nav-c a.a1 {
    background-position: -12px 0px;
    font-size: 16px;
    color: #242424
}

.r-nav-c a.a2 {
    background-position: -140px 0px;
}

.r-nav-c a.a3 {
    background-position: -268px 0px;
}

.r-nav-c a.a4 {
    background-position: -396px 0px;
}

.r-nav-c a.a5 {
    background-position: -524px 0px;
}

.r-nav-c a.a1:hover,.r-nav-c a.a1.on {
    background-position: -12px -37px;
}

.r-nav-c a.a2:hover,.r-nav-c a.a2.on {
    background-position: -140px -37px;
}

.r-nav-c a.a3:hover,.r-nav-c a.a3.on {
    background-position: -268px -37px;
}

.r-nav-c a.a4:hover,.r-nav-c a.a4.on {
    background-position: -396px -37px;
}

.r-nav-c a.a5:hover,.r-nav-c a.a5.on {
    background-position: -524px -37px;
}

.r-nav-c .al .aui {
    display: none;
    width: 128px;
    position: absolute;
    left: -3px;
    top: 67px;
    z-index: 10
}

.r-nav-c .al .aui .b {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    opacity: 0.9;
    filter: alpha(opacity=90);
}

.r-nav-c .al ul {
    position: relative;
    padding: 10px 0;
}

.r-nav-c .al ul li {
    height: 32px;
}

.r-nav-c .al ul li a {
    color: #404040;
    width: 110px;
    height: 32px;
    display: block;
    margin: 0 auto;
    text-align: center;
    line-height: 32px;
    background-image: none;
    border-radius: 5px;
}

.r-nav-c .al ul li a:hover {
    background-color: #7cae95;
    color: #fff;
}