* {
	margin: 0px;
	padding: 0px;
}
body {
	font-family: Microsoft YaHei;
}
ul li, ol li {
	list-style: none;
}
img, input {
	border: none;
}
img {
	border: 0;
	max-width: 100%;
	width: auto;
	height: auto;
	-ms-interpolation-mode: bicubic;
}
.main {
	width: 100%;
	max-width: 640px;
	min-width: 320px;
	margin: 0px auto;
	position: relative;
	overflow: hidden;
	height: auto;
 
}
.logo {
	text-align: center;
	padding: 1rem 0rem;
}
a {
	color: #000000;
	text-decoration: none;
	cursor: pointer;
	font-family: Microsoft YaHei;
}
/*导航*/
nav {
	background: #00809d;
	height: auto;
	overflow: hidden;
}
nav ul li {
	float: left;
	padding: 1rem 0px;
	text-align: center;
	display: inline;
	width: 25%;
	border-right: 1px solid #fff;
	border-bottom: 1px solid #fff;
	box-sizing: border-box
}
nav ul li a {
	color: white;
	font-size: 1.5rem;
}
/*数据研究*/
.data{ padding-top: 1.5rem;}
.data p { width: 90%; margin: 0px auto;
	font-size: 1.8rem;
	text-indent: 2em; color: #333333;
}
.data p span {
	color: #f17458;
}
.data img{ text-align: center; display: block; margin: 0px auto; padding-top: 2rem;}

/*预兆*/
.yz{ background: #e5f2f5; overflow: hidden;  height: auto; padding-bottom: 4rem;}
.tit{ text-align: center; padding: 4rem 0px;}
.listPic{ text-align: center;}
.listPic img{ padding-bottom: 1rem;}
.zxBtn{ width: 60%; margin: 0px auto;   }
.zxBtn a{text-align: center; color: #ff9600; font-size: 1.5rem; display: block; padding: 1rem;  }
/*活动详情*/
.hdxq{ overflow: hidden; height: auto; background: white;}
.hdtab{ text-align: center; width: 95%; margin: 0px auto;}
.warning{text-align: center; padding: 1rem 0px;}
.hdxq .zxBtn{ padding: 2rem 0px;}
/*大肠癌注意*/
.dcazy{ background: #e5f2f5;}
.dcaTab{ text-align: center;}
.dcazy  .zxBtn{padding: 2rem 0px;}
.zxBtn img{ width:
100%;}

/*footer*/
footer{ text-align: center; background: #fff; padding: 2rem 0px;}
footer p{ color: #00809d; font-size: 1.4rem; text-align:center; padding-top: 2rem;}


/*meida screen*/

@media screen and (min-width:320px) {
	nav ul li  a{ font-size: 16px;}
	.data p{     font-size: 1.6rem;
    line-height: 2rem;}
	.data{ padding-top: 1.5rem;}
	.tit{padding: 2rem 0px;}
	.zxBtn a{     font-size: 1.2rem;
    width: 100%;
    margin: 0px auto; padding: 0.2rem;}
	
 
	 
	
	
	 
	.hdxq .zxBtn {
    padding: 1rem 0px;}
	footer p {
    color: #00809d;
    font-size: 1.6rem;
    text-align: center;
    padding-top: 2rem;
}
		

}

/*屏幕宽度大于400*/
@media screen and (min-width:400px) {
	
	 
	
}

/*屏幕宽度大于500*/
@media screen and (min-width:500px) {
	nav ul li  a{ font-size: 2.5rem;}
	.data p{ font-size: 2.5rem; line-height: 3rem;}
	
	.zxBtn a { font-size: 1.5rem; padding:0.5rem;}
	footer p{ font-size: 2.5rem;}
	.hdxq .zxBtn {
    padding: 2rem 0px;}
	
	
	 

.tit {
    text-align: center;
    padding: 4rem 0px;
}
	
	
	.yz ul li {
    background: #dcdcdc;
    height: 200px;
    width: 37%;
    float: left;
}
	
	
}