@font-face { 
 font-family: '汉仪长艺体简','仿宋','Candara'; 
 src:
        url('../fonts/Candara.ttf') format('ttf'), 
        url('../fonts/simfang.ttf') format('ttf'), 
        url('../fonts/汉仪长艺体简.ttf') format('ttf'); 
}  
.about_us {
	background: #f1f1f1;
	padding-bottom: 3rem;
}
/*标题*/
.about_us_title {
	padding-top: 2.4rem;
}
.about_us_title1 {
	font-family: '仿宋';
	text-align: center;
	font-size: 2.4rem;
	color: #333;
	font-weight: bold;
}
.about_us_title2 {
	font-family: '汉仪长艺体简';
	font-size: 2.6rem;
	text-align: center;
	color: #333;
	font-weight: bold;
	margin-bottom: 1.9rem;
	text-transform: uppercase;
}
.about_us_title3,.about_us_title4,.system_introduction_title3,.system_introduction_title4 {
	font-size: 0.7rem;
	color: #666;
	line-height: 1.25rem;
	text-align: center;
	padding: 0 6%;
}
.about_us_title4,.system_introduction_title4 {
	font-family: 'Candara';
	margin-top: 10px;
}

@media (max-width: 520px) {
	.about_us_title1 {
		font-size: 2rem;
	}
	.about_us_title2 {
		font-size: 1.5rem;
	}

}
.about_us_cons {
	margin-top: 3rem;
}
.about_us_consImg img {
	width: 100%;
	margin-bottom: 1rem;
}
.about_us_consTxt p {
	color: #666;
	font-size: 0.7rem;
	text-indent: 2em;
	line-height: 1.25rem;
}
@media (max-width: 768px) {
	.about_us_title3 {
		display: none;
	}
	.about_us_cons {
		margin-top: 1.5rem;
	}
}