.big_api_wrapper {
	position: relative;
	width: 100%;
	height: 700px;
	background: url("https://cos-lensung-1256579377.cos.ap-nanjing.myqcloud.com/cos/fe/express360/banner2.png")
		no-repeat center;
}

.our_merit_wrapper {
	background: #fff;
}

.after_sale_wrapper .title h2 {
	color: #fff;
	text-align: center;
	border-bottom: 8px solid rgba(255, 255, 255, 0.2);
	margin: 0;
}