a,body,html,header,footer,div,img,ul,li,h1,h2,span,i {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
	list-style: none;
}

* {
	-webkit-tap-highlight-color: rgba(0,0,0,0);
	-webkit-tap-highlight-color: transparent;
 /* For some Androids */;
}

*, :after, :before {
	box-sizing: border-box;
}

a {
	text-decoration: none;
	color: inherit;
	-webkit-touch-callout: none;
	-webkit-user-select: none;
	-webkit-tap-highlight-color: transparent;
	outline: none;
	transition: color .1s ease;
}

img[src=''], img:not([src]) {
	opacity: 0;
}

html {
	overflow-x: hidden;
	font-size: 62.5%;
}

html,body {
	position: relative;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
	font-family: -apple-system, 'Helvetica Neue', sans-serif;
	font-size: 1.5rem;
	background-color: #fff;
	color: #333;
}

header {
	width: 100%;
	height: auto;
	padding: 5rem 2rem 2rem;
}

.header {
	max-width: 750px;
	width: 100%;
	height: auto;
	margin: 0 auto;
	text-align: center;
}

.header img {
	width: 12rem;
	height: 12rem;
	border-radius: 30%;
	overflow: hidden;
	margin: 0 auto;
}

.header h2 {
	font-size: 2rem;
	font-weight: bold;
	color: #000;
	line-height: 2;
	margin-bottom: 0px;
}

.header h3 {
	margin-top: 0px;
	font-size: 1.5rem;
	font-weight: bold;
	color: #000;
	line-height: 2;
	margin-bottom: 1rem;
}

.header-btn {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
}

.header-btn li {
	width: 50%;
	margin-bottom: 2rem;
}

.header-btn li.down {
	margin-bottom: 5rem;
}

.header-btn li.down a {
	border-radius: 1rem 1rem 0 0;
}

.header-btn li.down a span {
	display: block;
	position: absolute;
	right: 0;
	bottom: -3rem;
	font-size: 1.4rem;
	color: #ff9966;
	width: 100%;
	height: 3rem;
	line-height: 3rem;
	padding: 0 1rem;
	background-color: #eee;
	border-radius: 0 0 1rem 1rem;
}

.header-btn li.down img {
	height: 2rem;
	width: auto;
	margin: 0;
	margin-right: 10px;
}

.header-btn li.down a > div{
	display: flex;
	height: 50px;
	justify-content: center;
	align-items: center;
}

.header-btn li:first-child a {
	background: linear-gradient(to left, #ff9966, #ff5e62);
}

.header-btn li:nth-child(2) a {
	background: linear-gradient(to left, #ff512f, #f09819);
}

.header-btn li:nth-child(3) a {
	background: linear-gradient(to left, #11998e, #38ef7d);
}

.header-btn li:nth-child(4) a {
	background: linear-gradient(to left, #8e2de2, #4a00e0);
}

.header-btn li a {
	display: block;
	width: calc(100% - 1rem);
	min-width: 15rem;
	max-width: 25rem;
	height: 5rem;
	margin: 0 auto;
	border-radius: 1rem;
	font-size: 1.8rem;
	color: #fff;
	line-height: 5rem;
	background: #ff9966;
	position: relative;
}

.header-btn li i {
	font-size: 2rem;
	color: #fff;
	margin-right: 1rem;
}

main {
	max-width: 750px;
	width: 100%;
	margin: 0 auto;
	padding: 1rem 2rem 2rem;
}

.content-tips {
	width: 100%;
}

.content-tips img {
	width: 100%;
	height: auto;
}