.nav {
    position: relative;
    width: 100%;
    height: 84px;
    z-index: 999;
    
}

.nav_bg {
    position: relative;
    width: 100%;
    height: 84px;
    z-index: 999;
    background: #111111;
}

.nav ul {
    width: 100%;
    box-sizing: border-box;
    padding: 0px 20px;
    min-width: 980px;
    margin: 0px auto;
}

.nav li {
    display: block;
    float: left;
    height: 100%;
    line-height: 84px;
    font-size: 14px;
    color: #ffffff;
    text-align: center;
}

.nav li a {
    display: inline-block;
    padding: 0px 20px;
    color: #ffffff;
}

.nav li a.logo {
    padding: 0px;
}

.nav img {
    margin-top: 22px;
    height: 40px;
    margin-right: 50px;
}

.nav li a:hover,
.nav li.nav_hover a {
    color: #cfa972;
}

.tel_nav_btn,
.tel_nav {
    display: none;
}

.bigtitle {
    text-align: center;
    padding: 50px 0px 0px 0px;
}

.bigtitle h2 {
    padding: 0px 0px 12px 0px;
    margin: 0px;
    font-size: 28px;
    font-weight: 400;
}

.bigtitle h3 {
    padding: 0px 0px 12px 0px;
    margin: 0px;
    font-size: 20px;
    font-weight: 400;
    display: inline-block;
    border-bottom: 2px solid #cfa972;
}

.bigtitle span {
    font-size: 14px;
    color: #333333;
    font-weight: 300;
    width: 490px;
    text-align: center;
    display: inline-block;
}

.bigtitle span strong {
    font-size: 14px;
    color: #cfa972;
    display: block;
}

.bigtitle a {
    display: inline-block;
    border: 1px #cfa972 solid;
    padding: 8px 26px;
    border-radius: 4px;
    margin: 0px 4px;
}

.bigtitle a.hover {
    background: #cfa972;
    color: #fff;
}

.nav div span {
    display: inline-block;
    height: 70px;
    line-height: 70px;
}

.nav div span a {
    display: inline-block;
    height: 70px;
    line-height: 70px;
    text-align: center;
    padding: 0px 15px;
    overflow: hidden;
    color: #ffffff;
}

.nav .nav_lv_2 {
    position: fixed;
    width: 100%;
    top: 70px;
    text-align: center;
    z-index: 4;
    background: #111111;
    display: none;
}

.nav .nav_lv_2 ul {
    text-align: center;
    width: 980px;
    margin: 0px auto;
    border: none;
}

.nav .nav_lv_2 a {
    color: #fff;
    padding: 0px 16px;
    margin: 0px 0px;
    display: inline-block;
}

.nav .right_nav_max {
    background: url(../image/nav_bg.png) right center no-repeat;
    padding-right: 18px;
}

.nav .right_nav_max div a {
    color: #ffffff;
}

.nav .right_nav_max div a:hover {
    color: #cfa972;
}

.nav li.nav_hover div a {
    color: #ffffff;
}

.nav li.nav_hover div a:hover {
    color: #cfa972;
}

.nav .right_nav {
    float: right;
}

.nav .right_nav a {
    font-size: 12px;
    border: 1px solid #ffffff;
    line-height: 30px;
    text-align: center;
    padding: 0px 10px;
    border-radius: 3px;
}

.nav .right_nav a:hover {
    font-size: 12px;
    border: 1px solid #cfa972;
    line-height: 30px;
    text-align: center;
    padding: 0px 10px;
    border-radius: 3px;
}

.nav .right_nav2 {
    float: right;
}

.nav .right_nav2 a {
    font-size: 12px;
    line-height: 30px;
    text-align: center;
    padding: 0px 10px;
    border-radius: 3px;
}

.nav .no_bo a {
    border: none;
}

.nav .no_bo a:hover {
    border: none;
}

@media screen and (max-width: 720px) {
    .nav {
        position: fixed;
        top: 0px;
        width: 100%;
        height: 48px;
        z-index: 999;
        border-bottom: #ccc 1px solid;
    }
    .nav ul {
        width: 100%;
        box-sizing: border-box;
        padding: 0px;
        margin: 0px auto;
    }
    .nav .show_pc {
        display: none;
    }
    .nav .show_tel {
        display: block;
    }
    .nav li {
        display: none;
        line-height: 1;
    }
    .nav .left_nav {
        display: inline-block;
    }
    .nav .left_nav img {
        height: 28px;
        margin-top: 10px;
        margin-left: 10px;
    }
    .tel_nav_btn {
        position: absolute;
        top: 10px;
        right: 10px;
        display: block;
    }
    .tel_nav_btn img {
        width: 28px;
        height: 28px;
        margin: 0px;
        padding: 0px;
    }
    .tel_nav {
        position: fixed;
        display: none;
        top: 49px;
        width: 100%;
        height: 100%;
        background: #111111;
        z-index: 9999999999;
        color: #fff;
    }

    .tel_nav ul {
        padding:0 10px 0 20px;
    }
    .tel_nav .menuTitle{
        padding-right: 10px;
    }
    .tel_nav li {
        box-sizing: border-box;
        width: 100%;
        
    }
    .tel_nav li ul a{
        display: block;
        width: 100%;
        color: #a3a3a3;
    }
    .tel_nav a {
        color: #fff;
    }

    .tel_nav h3 {
        margin:18px 0 0 0;
        font-size: 18px;
        font-weight: normal;
    }

    .tel_nav i {
        float: right;
        display: block;
        transition: all .5s;
    }

    .tel_nav i.active {
        transform: rotate(-180deg);
        -ms-transform: rotate(-180deg);
        
        -moz-transform: rotate(-180deg);
        
        -webkit-transform: rotate(-180deg);
        
        -o-transform: rotate(-180deg);
        
    }
    .nav_lv_3{
        display: none;
    }
    .nav_lv_3 li{
        margin-top: 16px;
    }
    .nav_lv_3 li a{
        font-size: 16px;
    }
    .bigtitle {
        text-align: center;
        padding: 40px 0px 0px 0px;
    }
    .bigtitle h2 {
        padding: 0px 0px 12px 0px;
        margin: 0px;
        font-size: 24px;
        font-weight: 400;
    }
    .bigtitle h3 {
        padding: 0px 0px 12px 0px;
        margin: 0px;
        font-size: 20px;
        font-weight: 400;
        display: inline-block;
        border-bottom: 2px solid #cfa972;
    }
    .bigtitle span {
        font-size: 14px;
        color: #333333;
        font-weight: 300;
        padding: 0px 20px;
        display: inline-block;
        width: auto;
    }
    .bigtitle .pc_span_show {
        display: none;
    }
    .bigtitle span strong {
        font-size: 14px;
        color: #cfa972;
        display: block;
    }
    .bigtitle a {
        display: inline-block;
        border: 1px #cfa972 solid;
        padding: 8px 16px;
        border-radius: 4px;
        margin: 0px 4px;
    }
    .bigtitle a.hover {
        background: #cfa972;
        color: #fff;
    }
    .nav_lv {
        display: none;
    }
}