.navbar-default{height: 70px;width: 100%;position: relative;margin-bottom: 0px;}
.nav-nobg{margin-bottom: 0px;}
.bg_box{width: 100%;height: auto;box-sizing: border-box;}
.center_box{width: 1200px;height: auto;background: #FFFFFF;box-sizing:border-box;margin: 60px auto;}
.nav-nobg{background: #FFFFFF;}
.navbar-right{height: 50px;}
.navbar-default .navbar-nav>li>a{color: #222222;}

#container{margin: 170px auto;}


/***** Media queries *****/
@media (min-width: 1200px) { 
	.massage{bottom: 130px;}
	.left_menu {display: none;}
	.footer_bottom{width: 100%;}
	.bottom_box{width: 100%;margin: 0 auto;}  
} 
@media (min-width: 992px) and (max-width: 1199px){  
    /*.mobile_nav{display: none;}*/
    .form-box{margin-top: 180px;}
    .left_menu {display: none;}
    .footer_bottom {width: 900px;}  
    .contact_ways li:first-child{margin-right: 20px;}
    .contact_ways li:nth-child(2){margin-right: 20px;}
    .android{right: 30px;}
    .apple{right: 170px;}    
    .footer_box{width: 900px;}
     .bottom_box{width: 900px;margin: 0 auto;}                                                                                                                                                                                                                                                                                                          
} 
@media  (max-width: 799px){  
	/*.navbar-header{display: none;}*/
	/*.navbar-default{display: none;}*/
	.navbar{margin-bottom: 0px;}
	.nav_box{display: none;}
	.footer{display: none;}
    
    /* 尾部开始 */
    .nav_list{margin-bottom: 20px;} 
    .nav_list .footer_nav_list{text-align: center;}
    .nav_list .footer_nav_list a{margin-right: 6px;text-decoration: none;font-size: 14px;color: #909090;}
    .footer_nav_list a:first-child{display: none;}
    .bottom_text{font-size: 12px;color: #909090;padding-bottom: 20px;padding-top: 20px;}
    .bottom_box{border-top: 1px solid #DCDCDC;width: 300px;height: auto;margin: 0 auto;}
    /*  尾部结束 */
   
}