.block .flex-box,
.container-nav {
	max-width: 1250px;
	overflow: hidden;
}
.banner-big {
	background: linear-gradient(to right, #f9fbff, #e3ebff);
	max-height: 780px;
	overflow: hidden;
	position: relative;
}
.banner-big .banner-op {
	position: absolute;
	width: 100%;
	height: 100%;
}
.banner-big a {
	position: absolute;
	left: 19%;
	top: 60%;
	display: inline-block;
	background: #f75128;
	border-radius: 4px;
	line-height: 44px;
	width: 124px;
	color: #fff;
	font-size: 18px;
	text-align: center;
	cursor: pointer;
}
.container-nav {
	width: 100%;
	margin: -40px auto 0;
	padding: 0 10px;
}
.container-nav .container-nav-item {
	float: left;
	background: #fff;
	box-shadow: 0 2px 12px rgba(91, 158, 241, 0.2);
	border-radius: 8px;
	height: 90px;
	margin-right: 10px;
	position: relative;
	overflow: hidden;
	width: 238px;
	margin-bottom: 24px;
}
.container-nav .container-nav-item:last-of-type {
	margin-right: 0;
}
.container-nav .container-nav-item .icon {
	position: absolute;
	bottom: 0;
	right: 0;
}
.container-nav .container-nav-item p {
	font-weight: 700;
	font-size: 28px;
	line-height: 90px;
	letter-spacing: 0.02em;
	color: #3a91ff;
	text-align: center;
}
.block.grey {
	background: #f6f9fe;
}
.block .title {
	font-weight: 700;
	font-size: 30px;
	line-height: 80px;
	text-align: center;
	color: #323233;
}
.mt30 {
	margin-top: 30px !important;
}
.pt30 {
	padding-top: 30px !important;
}
.pt20 {
	padding-top: 20px !important;
}
.pb30 {
	padding-bottom: 30px !important;
}
.pb50 {
	padding-bottom: 50px !important;
}
.mt20 {
	margin-top: 20px !important;
}
.mt12 {
	margin-top: 12px !important;
}
.block .flex-box {
	width: 100%;
	margin: 0 auto;
	padding: 10px;
}
.block .flex-box .item {
	float: left;
	margin-right: 10px;
	margin-bottom: 10px;
	background: #fff;
	box-shadow: 0 2px 16px rgba(91, 158, 241, 0.2);
	border-radius: 8px;
	min-height: 160px;
	display: flex;
	align-items: center;
	flex-direction: column;
	padding: 20px 20px 0;
}
.fluid,
.footer .copyright,
.footer .top {
	margin: 0 auto;
	overflow: hidden;
}
.block .flex-box .item .icon,
.fluid .text-list .item .label,
.node-nav li,
.node-nav ul {
	display: inline-block;
}
.w293 {
	width: 293px;
}
.h264 {
	height: 264px;
}
.h270 {
	height: 270px;
}
.block .flex-box .item .name {
	font-weight: 600;
	font-size: 16px;
	text-align: center;
	color: #2c2c2c;
}
.block .flex-box .item .desc {
	font-weight: 400;
	font-size: 14px;
	color: #788297;
	line-height: 1.5;
	padding: 10px;
}
.block .flex-box .h203 .desc {
	text-align: center;
	padding: 10px 60px;
}
.fluid {
	width: 100%;
	max-width: 1222px;
}
.fluid .text-list {
	width: 100%;
	max-width: 650px;
	margin-left: 50px;
}
.fluid .text-list .item {
	margin-bottom: 30px;
	color: #788297;
	position: relative;
	padding-left: 100px;
	line-height: 1.5;
}
.fluid .text-list .item .label {
	font-size: 16px;
	color: #2c2c2c;
	font-weight: 700;
	position: absolute;
	left: 0;
}
.fluid .image {
	width: 100%;
	max-width: 500px;
}
.fluid .big-image {
	width: 100%;
	max-width: 580px;
}
.fluid .desc {
	font-size: 14px;
	line-height: 22px;
	color: #788297;
	margin-top: 10px;
	padding-left: 10px;
}
.node-nav {
	text-align: center;
}
.node-nav li {
	width: 200px;
	font-size: 26px;
	color: #788297;
	height: 80px;
	line-height: 80px;
	text-align: center;
	position: relative;
	cursor: pointer;
}
.node-nav li.active {
	color: #323233;
}
.node-nav li.active::after {
	content: '';
	position: absolute;
	bottom: 10px;
	left: calc(50% - 50px);
	width: 100px;
	height: 4px;
	background: #3a91ff;
}
.nav-ctx {
	display: none;
}
.nav-ctx ul {
	float: left;
	width: 250px;
}
.nav-ctx ul li {
	font-size: 16px;
	height: 50px;
	line-height: 50px;
	color: #2c2c2c;
	cursor: pointer;
}
.nav-ctx ul li i {
	display: inline-block;
	width: 25px;
	height: 3px;
	background: #e5e5e5;
	margin-right: 10px;
	margin-bottom: 5px;
}
.nav-ctx ul li.active {
	font-size: 20px;
	color: #3a91ff;
}
.nav-ctx ul li.active i {
	width: 50px;
	background: #3a91ff;
}
.loop {
	float: left;
	width: calc(100% - 250px);
}
.loop .image {
	max-width: 100%;
}
.fl {
	float: left;
}
.fr {
	float: right;
}
.text-center {
	text-align: center;
}
.footer {
	padding: 70px 10px 60px;
	background: #202d42;
}
.footer .top {
	width: 100%;
	max-width: 1250px;
}
.footer-l {
	width: 100%;
	max-width: 640px;
	display: flex;
	justify-content: space-between;
}

.footer-r {
	width: 100%;
	max-width: 460px;
	display: flex;
	justify-content: space-between;
}
.footer h4 {
	padding-bottom: 10px;
	font-size: 14px;
	color: #fff;
	font-weight: 600;
}
.list-unstyled {
	padding-left: 0;
	list-style: none;
	padding-right: 20px;
}
.img-fluid {
	max-width: 100%;
	height: auto;
}
.footer a,
.footer li {
	color: #f4f4f4;
	font-size: 14px;
	line-height: 36px;
	word-break: break-all;
}
.qr-code {
	flex: 1;
}

.address {
	flex: 1;
	flex-basis: 60px;
}
.footer .copyright {
	/* padding-left: 15px; */
	color: #f4f4f4;
	font-size: 14px;
	width: 100%;
	max-width: 1250px;
}
.footer .copyright a {
	color: #007bff;
	text-decoration: none;
	background-color: transparent;
	-webkit-text-decoration-skip: objects;
}
a.scroll-top {
	width: 42px;
	height: 42px;
	line-height: 38px;
	font-size: 24px;
	color: #fff;
	border-radius: 50%;
	text-align: center;
	position: fixed;
	display: none;
	right: 20px;
	bottom: 20px;
	background: #4b88fb;
	z-index: 999;
}
a.scroll-top:hover {
	background: #f29a32;
}
.fa-scroll {
	display: block;
	width: 12px;
	height: 12px;
	transform: rotate(-45deg);
	border-top: 2px solid #fff;
	border-right: 2px solid #fff;
	margin: 17px auto;
}
@media (max-width: 1600px) {
	.block .sys-box-3 {
		max-width: 1222px;
	}
	.sys-box-3 .item:nth-child(4n) {
		margin-right: 0;
	}
}
@media (max-width: 767px) {
	.block .pc-flex-box .item:nth-child(even),
	.container-nav .container-nav-item:nth-child(even) {
		margin-right: 0;
	}
	.container-nav {
		margin-top: -30px;
	}
	.container-nav .container-nav-item {
		margin-bottom: 20px;
		width: calc(50% - 5px);
		height: 50px;
	}
	.container-nav .container-nav-item p {
		line-height: 50px;
		font-size: 20px;
		margin-left: 0;
		text-align: center;
	}
	.container-nav .container-nav-item .icon {
		transform: scale(0.5);
		bottom: -24px;
		right: -24px;
	}
	.block .pc-flex-box .item {
		width: calc(50% - 6px);
	}
	.block .pc-flex-box .h264 {
		height: 350px;
	}
	.banner-big img {
		width: 200%;
		margin-left: -50%;
	}
	.fluid .text-list {
		margin-left: 0;
		padding: 10px;
	}
	.block .flex-box .h203 .desc {
		padding: 10px;
	}
}
@media (max-width: 575px) {
	.block .title {
		font-size: 22px;
		line-height: 50px;
	}
	.block .flex-box .item {
		padding: 30px 0 0;
		min-height: 130px;
		margin-right: 10px;
		margin-bottom: 10px;
	}
	.block .flex-box .item .name {
		font-size: 12px;
	}
	.block .pc-flex-box .item .name {
		font-size: 18px;
	}
	.mt30 {
		margin-top: 15px !important;
	}
	.fluid .image {
		width: 80%;
		margin: 0 auto;
		float: none;
	}
}