body{
	margin: 0px;
	padding: 0px;
}
h1,h3{
	padding: 0px;
	margin: 0px;
}
.development{
	width: 100%;
	/* height: 100%; */
	background-image: url(../img/dev.png);
	background-size: 100% 100%;
	background-repeat: no-repeat;
}
.development_content{
	display: flex;
	flex-direction: column;
	align-items: center;
}
.dev_title{
	width: 14.44em;
	margin-bottom: 0.2em;
	margin-top: 0.8em;
}
.dev_title h1{
	font-size: 0.64em;
	font-family: Microsoft YaHei;
	font-weight: 400;
	color: #21497E;
}
.dev_title h3{
	font-size: 0.4em;
	font-family: Microsoft YaHei;
	font-weight: 300;
	color: #A8C7E1;
}
.dev_center_box{
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}
.dev_center{
	width: 14.44em;
}
.dev_bottom{
	width: 100%;
	height: 100%;
	margin: auto;
}
.dev_title_done{
	display: none;
}
.dev_phone{
	display: none;
}
@media screen and (max-width: 950px){
	.dev_title{
		width: 90%;
		border-bottom: 1px solid #A8C7E1;
		display: flex;
		flex-direction: column;
		align-items: center;
		position: relative;
		padding-bottom: 0.27em;
	}
	.dev_title_done{
		display: block;
		width: 0.22em;
		height: 0.22em;
		background: #21497E;
		border-radius: 50%;
		position: absolute;
		bottom: -0.11em;
	}
	.dev_computer{
		display: none;
	}
	.dev_phone{
		display: block;
	}
}