.nav_first {
    height: 36px;
    line-height: 36px;
    width: 1000px;
    z-index: 999;
}

    .nav_first a {
        font-size: 20px;
        color: #fff;
        text-align: center;
        display: block;
        width: 109px;
        margin-left: 8px;
        margin-right: 8px;
    }

    .nav_first li {
        background-color: #cb9b68;
    }

    .nav_first li {
        position: relative;
        display: inline-block;
    }

        .nav_first li:hover {
            background-color: #fff0e1;
        }

            .nav_first li:hover a {
                color: #cb9b68;
            }

        .nav_first li .nav_second {
            position: absolute;
            display: none;
        }

            .nav_first li .nav_second li {
                display: block;
                background-color: #fff0e1;
            }

                .nav_first li .nav_second li a {
                    color: #cb9b68;
                    font-size: 14px;
                }

                .nav_first li .nav_second li.fly {
                    background-image: url(/all/images/tb.gif);
                    background-repeat: no-repeat;
                    background-position: 110px center;
                }

        .nav_first li:hover .nav_second {
            display: block;
        }

    .nav_first .nav_second .nav_third {
        position: absolute;
        display: none;
        left: 126px;
        top: 1px;
    }

        .nav_first .nav_second .nav_third li {
            background-color: #fff9f3;
        }

            .nav_first .nav_second .nav_third li a {
                color: #cb9b68;
                width: 128px;
            }

    .nav_first li:hover .nav_second li:hover .nav_third {
        display: block;
    }

        .nav_first li:hover .nav_second li:hover .nav_third li {
            display: block;
        }