.banner{
	font-size: 0;
	position: relative;
}

.banner img{
	width: 100%;
}

.banner:after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 0;
	display: block;
	width: 100%;
	height: 30%;
	z-index: 5;
	background-image: -webkit-gradient(linear,left bottom,left top, from(#F6F6F6), to(rgba(246, 246, 246, 0)));
	background-image: linear-gradient(0deg, #F6F6F6, rgba(246, 246, 246, .8) 50%, rgba(246, 246, 246, 0));
}

.introduce{
	position: relative;
	overflow: hidden;
}

.introduce canvas{
	position: absolute;
	top: 0;
	left: 0;
	z-index: -1;
}

.introduce h1,.introduce h5, .introduce h6 {
	text-align: center;
	margin-bottom: 20px;
	font-size: 26px;
	font-weight: bold;
}

.introduce h6 {
	text-align: left;
}

.introduce p{
	margin-bottom: 20px;
	text-indent: 60px;
	font-size: 18px;
	line-height: 25px;
	color: #666;
	letter-spacing: 3px;
}

.introduce form p {
	text-indent: 0;
}

.introduce>div{
	max-width: 1180px;
	margin: 100px auto;
	text-shadow: 0 0 2px #fff;
}

.introduce a{
	color: #007AFF;
}

.introduce a:hover{
	text-decoration: underline;
}

.box {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
}

@media only screen and (max-width: 800px) {
	.introduce h1,.introduce h5, .introduce h6 {
		font-size: 18px;
		margin-bottom: 10px;
	}

	.introduce p {
		font-size: 14px;
		line-height: 25px;
		margin-bottom: 0;
		text-indent: 30px;
		letter-spacing: 2px;
	}

	.introduce>div {
		margin: 30px auto;
		padding: 0 20px;
	}
}