.banner { width: 100%;	height: 120px;	background: url(../images/banner_case.png) no-repeat center; background-size: cover;}
.banner_1 {	width: 1000px;	margin: 0 auto;}
.banner_1 img {	margin-top: 100px;	margin-left: 128px;}
.position_zu { width: 1000px; margin: 0 auto;}
.position_zu p { color: #999; margin-top: 15px;	font-size: 14px;}
.position_zu a { color: #999; font-size: 14px;}
.position_zu a:hover{color:#666;}
.case {	width: 100%;}
.box {	width: 1000px;	margin: 0 auto;}
.number {	margin-top: 90px;	margin-left: 95px;	z-index: 1;}
.number h1 {	font-size: 72px;}
.number p {	font-size: 16px;	color: #666;}
.number a {	color: #666;}
.number a:hover {	color: #aace36;}
.number_1 {	text-align: center;	position: relative;	top: -140px;	z-index: -1;}
.num{    width: 873px;
    height: 699px;
    margin: 0 auto;	background: url(../images/number_1.png) no-repeat center;}
    
.num img{    display: block;
    width: 656px;
    height: 409px;
    position: absolute;
    top: 204px;
    left: 172px;}
.number_2 {	position: relative;	z-index: -2;	background: url(../images/number_2.png) no-repeat ;    margin-bottom: 60px;}
.number_3 {    
    text-align: center;
    padding-top: 400px;	z-index: 1;}
.number_3 img{width: 900px;}