#nav
{
    padding: 0;
    margin: 0 auto;
    list-style: none;
    height: 54px;
    width: 1002px;
    position: relative;
    z-index: 500;
    font-family: 微软雅黑;
    font-size: 14px;
}

    #nav li.top
    {
        display: block;
        float: left;
        width:111px;
        height: 54px;
    }

    #nav li a.top_link
    {
        display: block;
        float: left;  
        width:111px;
        height: 51px;
        line-height: 51px;
        color: #fff;
        text-decoration: none;
        font-size: 16px;
        font-weight: bold;
        cursor: pointer;
        margin-top:1px;
    }

        #nav li a.top_link span
        {
            float: left;
            display: block;    
            width:111px;
            height: 51px;
            font-family: 微软雅黑;
            font-size: 16px;
            text-align:center;
        }  

            #nav li a.top_link span.down
            {                 
            float: left;
            display: block;    
            width:111px;
            height: 51px;
            font-family: 微软雅黑;
            font-size: 16px;
            text-align:center;
            }

    #nav li:hover a.top_link
    {                 
            float: left;
            display: block;    
            width:111px;
            height: 51px;
            font-family: 微软雅黑;
            font-size: 16px;
            text-align:center;
            background:url(../images/navi1.jpg) repeat-y center top;
    }

        #nav li:hover a.top_link span
        {                        
            float: left;
            display: block;    
            width:111px;
            height: 51px;
            font-family: 微软雅黑;
            font-size: 16px;
            text-align:center;
            background:url(../images/navi1.jpg) repeat-y center top;
        }

            #nav li:hover a.top_link span.down
            {    
            float: left;
            display: block;    
            width:111px;
            height: 51px;
            font-family: 微软雅黑;
            font-size: 16px;
            text-align:center;
            }

    /* Default list styling */

    #nav li:hover
    {
        position: relative;
        z-index: 200;
    }

        #nav li:hover ul.sub
        {
            left: -6px;
            top: 54px;              
            background:url(../images/navi1.jpg) repeat-y center top;
            padding: 0;
            white-space: nowrap;
            width: 123px;
            height: auto;
            position: absolute;
            z-index: 3000;
            font-family: 微软雅黑;
            font-size: 14px;
            text-align:center;
            padding-bottom:10px;
        }

            #nav li:hover ul.sub li
            {
                float:left;
                display: block;
                height: 33px;
                position: relative;
                float: left;
                width: 123px;
                font-weight: normal;  
            font-family: 微软雅黑;
            font-size: 14px;
            text-align:center;
            padding-top:2px;
            }  
            #nav li:hover ul.sub li  a
            {
                float:left;
                display: block;
                height: 33px;
                position: relative;
                float: left;
                width: 123px;
                font-weight: normal;  
            font-family: 微软雅黑;
            font-size: 14px;
            color:#fff;
            text-align:center;
            }       
            #nav li:hover ul.sub li  a:hover
            {
                float:left;
                display: block;
                height: 33px;
                position: relative;
                float: left;
                width: 123px;
                font-weight: normal;  
            font-family: 微软雅黑;
            font-size: 14px;
            color:#fff;
            text-align:center;
            background:url(../images/hov_bg.png) no-repeat left top;
            }



    #nav li ul.sub li a.fly
    {
        float: left;
        padding-left: 10px;
        background: url(../images/bg1.jpg) no-repeat left top;
    }

    #nav li:hover ul.sub li a.fly:hover
    {
        float: left;
        background: url(../images/bg2.jpg) no-repeat left top;
    }


    #nav li:hover li:hover ul,
    #nav li:hover li:hover li:hover ul,
    #nav li:hover li:hover li:hover li:hover ul,
    #nav li:hover li:hover li:hover li:hover li:hover ul
    {
        left: 123px;
        top: 0px;
        background: #e6ca8a;
        padding: 0;
        white-space: nowrap;
        width: 123px;
        z-index: 400;
        height: auto;
    }


        #nav ul,
        #nav li:hover ul ul,
        #nav li:hover li:hover ul ul,
        #nav li:hover li:hover li:hover ul ul,
        #nav li:hover li:hover li:hover li:hover ul ul
        {
            position: absolute;
            left: -9999px;
            top: -9999px;
            width: 0;
            height: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }



    #nav li:hover li:hover a.fly,
    #nav li:hover li:hover li:hover a.fly,
    #nav li:hover li:hover li:hover li:hover a.fly,
    #nav li:hover li:hover li:hover li:hover li:hover a.fly
    {
        color: #000;
    }

    #nav li:hover li:hover li a:hover,
    #nav li:hover li:hover li:hover li a:hover,
    #nav li:hover li:hover li:hover li:hover li a:hover
    {
        color: #000;
    }