body {
	max-width: 640px;
	min-width: 320px;
	background: #FFFFFF;
	margin: 0 auto;
	overflow-x: hidden;
	width: 100%;
	font-family: "Microsoft YaHei", 'Source Han Sans', 'Hiragino Sans GB', STXihei, SimSun, Heiti, sans-serif;
}
img {
	width: 100%;
}
li {
	list-style: none;
}
ul {
	margin: 0;
	padding: 0;
}
a {
	text-decoration: none;

}
@media only screen and (max-width:640px),
only screen and (max-device-width:640px) {

	body,
	html {
		font-size: 20px
	}
}

@media only screen and (max-width:600px),
only screen and (max-device-width:600px) {

	body,
	html {
		font-size: 18.75px
	}
}

@media only screen and (max-width:540px),
only screen and (max-device-width:540px) {

	body,
	html {
		font-size: 16.88px
	}
}

@media only screen and (max-width:480px),
only screen and (max-device-width:480px) {

	body,
	html {
		font-size: 15px
	}

}

@media only screen and (max-width:414px),
only screen and (max-device-width:414px) {

	body,
	html {
		font-size: 12.94px
	}

}

@media only screen and (max-width:400px),
only screen and (max-device-width:400px) {

	body,
	html {
		font-size: 12.5px
	}

}

@media only screen and (max-width:375px),
only screen and (max-device-width:375px) {

	body,
	html {
		font-size: 11.72px
	}

}

@media only screen and (max-width:360px),
only screen and (max-device-width:360px) {

	body,
	html {
		font-size: 11.25px
	}


}

@media only screen and (max-width:320px),
only screen and (max-device-width:320px) {

	body,
	html {
		font-size: 10px
	}
}