.head .logo{float: left;display: block;line-height: 100px;position: absolute; top: 0; left: 56px; height: 100px;transition: all 500ms ease;-webkit-transition:all 500ms ease;font-size: 0;}
	.head .logo img{display: inline-block;vertical-align: middle;height:50px}
	.head .logo .img2{opacity: 0;visibility: hidden;z-index: 1;position: absolute;top: 44%;left: 0;transform: translateY(-50%);-webkit-transform:translateY(-50%);}
	.head .logo .img1{z-index: 1;} 
	
	
	.head.active{/* background: #fff;transition: all 500ms ease;-webkit-transition:all 500ms ease;box-shadow: 0 0 20px rgba(0,0,0,0.1); */}
.head.active .logo{height: 86px;line-height: 86px;}
	.head.active .logo .img2{opacity: 1;visibility: visible;}
	.head.active .logo .img1{opacity: 0;visibility:hidden;}
	.head.active .nav li a.v1{color: #4b4c4e;line-height: 100px;}
	.head.active .search_box{margin-top: 26px;}
	.head.active .search_box .search{background-image: url(../image/search_ico2.png);}
	.head.active .language_box{margin-top: 22px;}
	.head.active .language_box .lanage{display: block;}
	.head.active .ope_link a,
	.head.active .lang_txt a{
	    color: #666;
	}
	.head.active .ope_link,
	.head.active .lang_txt{margin-top: 22px;}
	
	@media screen and (max-width:1660px){ .head .logo {line-height: 100px;
	    position: absolute;
	    top: 0;
	    left: 56px;
	    height: 63px;
	} }
	
	@media screen and (max-width:768px){
		 
		.head .logo .img2 {
		    opacity: 1;
		    visibility: visible;
		    z-index: 1;
		    position: absolute;
		    top: 44%;
		    left: 0;
		    transform: translateY(-50%);
		    -webkit-transform: translateY(-50%);
		}
		.head .logo .img1 {
		   display: none;
		}
	.mheight {
	    height: 70px;
	    line-height: 70px;
	   /* background-color: rgba(0,0,0,0.4); */
	}
	
	
	.head .logo {
	    float: left;
	    display: block;
	    line-height: 74px;
	    position: absolute;
	    top: 0;
	    left: 5px;
	    height: 74px;
	    transition: all 500ms ease;
	    -webkit-transition: all 500ms ease;
	    font-size: 0;
	}
	.head.active .logo {
	    height: 74px;
	    line-height: 74px;
	}
	
	}