.top_box{width: 1600px;margin-left: auto;margin-right: auto}.foot_box{width: 1000px;position: relative;margin: 0 auto}.top .nav ul>li>a,.topc .nav ul>li>a{width: 80px;display: block;font-size: 17px}.top .lang,.topc .langc{padding-left: 20px}.top .lang a,.topc .langc a{line-height: 25px}.top .nav ol,.topc .nav ol{top: 90px}@media all and (max-width: 1800px){.top_box{width: 1400px}.top .nav ul>li,.topc .nav ul>li{margin-left: 0}.top .nav ul>li>a,.topc .nav ul>li>a{width: 90px}}@media all and (max-width: 1600px){.top_box{width: 1200px}}@media all and (max-width: 1400px){.top_box{width: auto;padding: 0 15px}.top .nav ul>li>a,.topc .nav ul>li>a{width: 80px}.top .lang,.topc .langc{padding-left: 15px;margin-right: -15px}.top .lang a,.topc .langc a{line-height: 30px}}