*{
        margin: 0px; padding: 0px;
    }
    /*最外层div*/
    #nav{
        width: 950px;
        height: 100px;
        background-color:white;
        margin: 0 auto;
		float:right;
    }
    
    #nav ul{
        list-style: none;
		padding-top:2em;
    }
 
    #nav a{
        padding: 0 30px;
        text-decoration: none;
    }
    
    #nav ul li{
        float: left;
        position: relative; 
    }
    #nav ul li ul{
        display: none;
        position: absolute;
    }
    
    #nav ul li:hover ul 
    {
        display: block;
    }
    
    #nav ul li ul li {
       float: none;/* 调整二级菜单怎么显示 ， none竖着显示*/
	   background:white;
	   width:22em;
	   padding:1em 0 1em 0;
	   z-index:3;
    }
   
    #nav ul li ul li a{
        background-color: white;
        
    }
     #nav ul li ul li a:hover{
        background-color: white;
		color:black;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:1.5em;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:1.2em;color:#000000;font-weight:normal;
	}
	#logoimag{
		float:left;
	}
	#logoimag img{
		padding-top:5px;
		padding-left:120px;
		width:80px;
		height:auto;		
	}
	#logotext{
		padding-top:25px;
		padding-left:5px;
		float:left;
	}
	#logotext span{
		font-size:2em;
		font-weight:bold;
		color:#30b4da;	
	}
	#language{
		width:100%;float:right;margin-right:2em;text-align:right;
	}
	
	/**bannercss**/
	.berd{
		width: 100%;
		height: auto;
		float: left;
		margin-bottom:-1%;
	}
	.berd img{
		width: 100%;
	}

	
@media screen and (max-width:1380px){
	#nav{
        width: 750px;
        height: 100px;
        background-color:white;
        margin: 0 auto;
		float:right;
    }
	 #nav a{
        padding: 0 25px;
        text-decoration: none;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:1.1em;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:0.8em;color:#000000;font-weight:normal;
	}
}
@media screen and (max-width:1090px){
	#nav{
        width: 650px;
        height: 80px;
        background-color:white;
        margin: 0 auto;
		float:right;
	}
	#nav ul {float:left;}
	#nav a{
        padding: 0 20px;
        text-decoration: none;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:1em;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:0.6em;color:#000000;font-weight:normal;
	}
	#logoimag{
		float:left;
	}
	#logoimag img{
		padding-top:13px;
		padding-left:120px;
		width:50px;
		height:auto;		
	}
	#logotext{
		padding-top:25px;
		padding-left:5px;
		float:left;
	}
	#logotext span{
		font-size:1.3em;
		font-weight:bold;
		color:#30b4da;
	}
}
@media only screen and (max-width:950px){
	#nav{
        width: 450px;
        height: 80px;
        background-color:white;
        margin: 0 auto;
		float:right;
	}
	#nav ul {float:left;}   
	#nav a{
        padding: 0 15px;
        text-decoration: none;
    }	
    #nav ul li ul li {
       float: none;/* 调整二级菜单怎么显示 ， none竖着显示*/
	   background:white;
	   width:15em;
	   padding:1em 0 1em 0;
	   z-index:3;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:12px;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:10px;color:#000000;font-weight:normal;
	}
	#logoimag{
		float:left;
	}
	#logoimag img{
		padding-top:18px;
		padding-left:120px;
		width:40px;
		height:auto;		
	}
	#logotext{
		padding-top:30px;
		padding-left:5px;
		float:left;
	}
	#logotext span{
		font-size:1em;
		font-weight:bold;
		color:#30b4da;
	}
}
@media only screen and (max-width:700px){
	#nav{
        width: 350px;
        height: 70px;
        background-color:white;
        margin: 0 auto;
		float:right;
	}
	#nav ul {float:left;}   
	#nav a{
        padding: 0 10px;
        text-decoration: none;
    }	
    #nav ul li ul li {
       float: none;/* 调整二级菜单怎么显示 ， none竖着显示*/
	   background:white;
	   width:15em;
	   padding:1em 0 1em 0;
	   z-index:3;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:10px;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:8px;color:#000000;font-weight:normal;
	}
	#logoimag{
		float:left;
}
#logoimag img{
		padding-top:18px;
		padding-left:50px;
		width:40px;
		height:auto;		
	}
	#logotext{
		padding-top:30px;
		padding-left:5px;
		float:left;
	}
	#logotext span{
		font-size:1em;
		font-weight:bold;
		color:#30b4da;
	}
}

@media only screen and (max-width:540px){
	 #nav{
        width:360px;
        height: 70px;
        background-color:white;
        margin: 0 auto;
		float:right;
    }
    
    #nav ul{
        list-style: none;
		padding-top:2em;
    }
 
    #nav a{
        padding: 0 7px;
        text-decoration: none;
    }
    
    #nav ul li{
        float: left;
        position: relative; 
    }
    #nav ul li ul{
        display: none;
        position: absolute;
    }
    
    #nav ul li:hover ul 
    {
        display: block;
    }
    
    #nav ul li ul li {
       float: none;/* 调整二级菜单怎么显示 ， none竖着显示*/
	   background:white;
	   width:22em;
	   padding:1em 0 1em 0;
	   z-index:3;
    }
   
    #nav ul li ul li a{
        background-color: white;
        
    }
     #nav ul li ul li a:hover{
        background-color: white;
		color:black;
    }
	#nav ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:0.5em;color:#000000;font-weight:bold;
	}
	#nav ul li ul li a{
		font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu;font-size:0.5em;color:#000000;font-weight:normal;
	}
	#logoimag{
		float:left;
	}
	#logoimag img{
		padding-top:25px;
		padding-left:10px;
		width:30px;
		height:auto;		
	}
	#logotext{
		padding-top:25px;
		padding-left:5px;
		float:left;
	}
	#logotext span{
		font-size:0;
		font-weight:bold;
		color:#30b4da;	
	}
}