.w {
	max-width: 1600px;
	margin: 0 auto;
}

.nr {
	max-width: 1400px;
	margin: 0 auto;
}

li {
	list-style: none;
}

ul {
	padding: 0;
	margin: 0;
}

a {
	color: #333;
}

a:hover {
	text-decoration: none;
	color: #32beff;
}

a:link {
	text-decoration: none;
}

:root {
	--styleColor: #2fbcfc;
}

.msf_btn {
	background-image: linear-gradient(90deg, #31c0ff 40%, #015faf);
	color: #fff;
	font-size: 18px;
	transition: all 0.3s;
	box-sizing: border-box;
	padding: 15px 88px;
	border-radius: 10px;
	opacity: 0.8;
}

.msf_btn:hover {
	opacity: 1;
	background-image: linear-gradient(45deg, #31c0ff, #015faf);
	filter: brightness(120%);
	color: #fff;
}

.msf_title {
	position: relative;
	text-align: center;
	border-bottom: 1px solid #dcdcdc;
	max-width: 1200px;
	margin: 0 auto;
}

.msf_title h2 {
	position: relative;
	font-size: 40px;
	display: inline-block;
	background-image: linear-gradient(135deg, #31c0ff, #015faf);
	-webkit-background-clip: text;
	color: transparent;
}

.msf_title h2::before,
.msf_title h2::after {
	content: '';
	position: absolute;
	display: block;
	width: 10px;
	height: 10px;
	border-radius: 100%;
	background-color: #31c0ff;
	left: -40px;
	top: 50%;
	transform: translateY(-50%);
}

.msf_title h2::after {
	background-color: #015faf;
	left: unset;
	right: -40px;
}

.msf_title .msf_title_en {
	font-size: 24px;
	color: #d7d7d7;
}

.msf_title .msf_title_cn {
	font-size: 18px;
	margin-bottom: 33px;
}

.msf_title::before {
	content: '';
	position: absolute;
	bottom: -1px;
	left: 50%;
	transform: translateX(-50%);
	display: block;
	width: 128px;
	height: 4px;
	background-color: var(--styleColor);
}

header {
	position: relative;
}

header .header_top {
	height: 40px;
	background-color: #102440;
}

header .header_top .w {
	color: #fff;
	font-size: 16px;
	height: 100%;
}

header .header_top .w .header_top_down {
	float: right;
	line-height: 40px;
	cursor: pointer;
	top: -400px;
}

header .header_top .w .header_top_down.active .icon_down {
	transform: rotate(180deg);
}

header .header_top .w .header_top_down .icon_down {
	display: inline-block;
	width: 10px;
	height: 10px;
	background: url(../images/xia.png) no-repeat center center;
	cursor: pointer;
	transition: transform 0.3s;
}

header .header_top .w .header_top_language {
	float: right;
	display: flex;
	align-items: center;
	margin-left: 45px;
	line-height: 40px;
}

header .header_top .w .header_top_language span {
	margin: 0 12px;
}

header .header_top .w .header_top_language .active {
	display: flex;
	width: 25px;
	height: 25px;
	justify-content: center;
	align-items: center;
	border-radius: 100%;
	background-color: #33bdfe;
	line-height: 25px;
}

header .header_down {
	position: absolute;
	top: -400px;
	left: 0;
	background-color: rgba(16, 36, 64, 0.9);
	height: 257px;
	width: 100%;
	z-index: 9999;
	transition: top 0.3s;
}

header .header_down.active {
	top: 38px;
}

header .header_down .w {
	height: 100%;
}

header .header_down .w>ul {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
}

header .header_down .w>ul>li a:hover .header_down_img img {
	transform: scale(1.2);
}

header .header_down .w>ul>li a .header_down_img {
	width: 252px;
	height: 135px;
	margin-bottom: 20px;
	overflow: hidden;
}

header .header_down .w>ul>li a .header_down_img img {
	width: 100%;
	transition: all 0.3s;
}

header .header_down .w>ul>li a p {
	text-align: center;
	color: #fff;
	font-size: 16px;
}

header .msf_nav {
	position: absolute;
	width: 100%;
	height: 100px;
	background-color: rgba(37, 42, 50, 0.1);
	border: none;
	margin-bottom: 0;
	z-index: 999;
}

header .msf_nav.index .msf_nav_right .msf_nav_list>li.active {
	border-bottom: 1px solid #fff;
}

header .msf_nav.index .msf_nav_right .msf_nav_list>li>a {
	color: #fff;
}

header .msf_nav.index .msf_nav_right .msf_nav_list>li>a:hover {
	color: #fff;
	border-bottom: 1px solid #fff;
}

header .pc-menu li {
	position: unset;
}


footer .footer_top {
	background: url(../images/footer-bg.jpg) no-repeat top center;
	height: 417px;
	padding-top: 54px;
}

footer .footer_top .nr .footer_top_list {
	display: flex;
	justify-content: space-between;
}

footer .footer_top .nr .footer_top_list .footer_top_item {
	display: flex;
	flex-direction: column;
}

footer .footer_top .nr .footer_top_list .footer_top_item h5 {
	font-size: 16px;
	color: #fff;
	font-weight: 800;
}

footer .footer_top .nr .footer_top_list .footer_top_item>a {
	font-size: 14px;
	color: #727272;
	line-height: 32px;
}

footer .footer_top .nr .footer_top_list .footer_top_item>a:hover {
	color: #ddd;
}

footer .footer_mid {
	background-color: #fff;
	height: 260px;
}

footer .footer_mid .nr {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 100%;
}

footer .footer_mid .nr .footer_mid_left {
	margin-right: 52px;
}

footer .footer_mid .nr .footer_mid_content {
	width: 784px;
	border-left: 1px solid #ccc;
	border-right: 1px solid #ccc;
}

footer .footer_mid .nr .footer_mid_content ul {
	display: flex;
	flex-wrap: wrap;
	width: 100%;
	padding: 0 68px;
}

footer .footer_mid .nr .footer_mid_content ul li {
	display: flex;
	align-items: center;
	width: 50%;
	font-size: 15px;
	margin-bottom: 17px;
}

footer .footer_mid .nr .footer_mid_content ul li::before {
	content: '';
	width: 21px;
	height: 21px;
	background: url(../images/icon.png) no-repeat;
	display: block;
	margin-right: 13px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(2)::before {
	background-position: -329px -2px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(3)::before {
	background-position: 0px -36px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(4)::before {
	background-position: 0px -36px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(5)::before {
	background-position: 0px -72px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(6)::before {
	background-position: -329px -72px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(7)::before {
	background-position: 0px -107px;
}

footer .footer_mid .nr .footer_mid_content ul li:nth-child(8)::before {
	background-position: -330px -108px;
}

footer .footer_bottom {
	background-color: #0a1b34;
	height: 92px;
}

footer .footer_bottom .nr {
	display: flex;
	flex-direction: column;
	font-size: 12px;
	height: 100%;
	justify-content: center;
}

footer .footer_bottom .nr .to_top {
	display: none;
}

footer .footer_bottom .nr .footer_bottom_link {
	color: #909090;
	margin-bottom: 10px;
}

footer .footer_bottom .nr .footer_bottom_link a {
	font-size: 12px;
	color: #909090;
}

footer .footer_bottom .nr .footer_bottom_link a:hover {
	color: #fff;
}

footer .footer_bottom .nr .footer_bottom_copyright {
	color: #909090;
}

footer .footer_bottom .nr .footer_bottom_copyright a {
	color: #909090;
}

@keyframes msf_show {
	0% {
		opacity: 0;
	}

	100% {
		opacity: 1;
	}
}

@keyframes msf_xunazhuan {
	0% {
		transform: rotateY(0deg);
	}

	100% {
		transform: rotateY(180deg);
	}
}

@media screen and (max-width: 780px) {
	.nr {
		width: 100%;
		padding: 0 0.3rem;
	}

	.w {
		width: 100%;
		padding: 0 0.3rem;
	}

	.msf_btn {
		padding: 10px 70px;
		opacity: unset;
	}

	.msf_title::before {
		height: 2px;
	}

	.dropdown::after {
		content: '+';
    float: right;
    position: absolute;
    line-height: 40px;
    top: 0;
    right: 20px;
    font-size: 16px;
    color: #555;
	}

	.msf_title h2 {
		margin: 0;
		font-size: 26px;
	}

	.msf_title h2::before,
	.msf_title h2::after {
		width: 0.1rem;
		height: 0.1rem;
		left: -0.4rem;
	}

	.msf_title h2::after {
		left: unset;
		right: -0.4rem;
	}

	.msf_title .msf_title_en {
		font-size: 16px;
	}

	.msf_title .msf_title_cn {
		font-size: 12px;
		margin-bottom: 20px;
	}

	header .header_top {
		display: none;
	}

	header .header_down {
		display: none;
	}

	header .msf_nav {
		background-color: #e6e6e6;
		height: auto;
	}

	header .msf_nav .w .msf_nav_left {
		height: auto;
		display: block;
	}

	header .msf_nav .w .msf_nav_left .navbar-brand {
		height: 1.4rem;
		border-right: none;
	}

	header .msf_nav .w .msf_nav_left .navbar-toggle {
		margin: 0.34rem 0.3rem;
	}

	header .msf_nav .w .msf_nav_left .logo_text {
		display: none;
	}

	header .msf_nav .w .msf_nav_right {
		background-color: rgba(0, 0, 0, 0.3);
	}

	header .msf_nav .w .msf_nav_right .msf_nav_list {
		margin-top: 0.3rem;
		margin-bottom: 0.4rem;
	}

	header .msf_nav .w .msf_nav_right .msf_nav_list>li {
		border-bottom: 0.02rem solid #000;
		margin: 0 0.6rem;
	}

	header .msf_nav .w .msf_nav_right .msf_nav_list>li.active {
		border-bottom: 0.02rem solid #fff;
	}

	header .msf_nav .w .msf_nav_right .msf_nav_tel {
		float: left;
		margin-top: 0;
		margin-bottom: 0.4rem;
		padding-left: 0.4rem;
	}

	footer .footer_top {
		display: none;
	}

	footer .footer_mid {
		background-color: #0a1b34;
		height: auto;
		padding-top: 20px;
	}

	footer .footer_mid .nr {
		flex-direction: column-reverse;
	}

	footer .footer_mid .nr .footer_mid_left {
		margin-right: 0px;
	}

	footer .footer_mid .nr .footer_mid_content {
		width: 100%;
	}

	footer .footer_mid .nr .footer_mid_content>ul {
		padding: 0.2rem;
	}

	footer .footer_mid .nr .footer_mid_content>ul>li {
		width: 100%;
		color: #909090;
		display: flex;
		justify-content: center;
		align-items: center;
	}

	footer .footer_mid .nr .footer_mid_right {
		display: none;
	}
	footer .footer_bottom .nr{
		padding-bottom: .3rem;
	}
	footer .footer_bottom .nr .footer_bottom_copyright {
		text-align: center;
	}

	footer .footer_bottom .nr .to_top {
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		text-align: center;
		color: #eee;
		font-size: 14px;
		margin-bottom: .2rem;

	}
	footer .footer_bottom .nr .to_top::before{
		content: '';
		width: 78px;
		height: 31px;
		background: url(../images/toTop_ico.png) no-repeat center center;
		background-size: contain;
		margin-bottom: .2rem;
	}
}