@charset "utf-8";
/* CSS Document */

@font-face {
	font-family: "Montserrat";
	src: url('font/Montserrat-SemiBold-9.otf');
}

@font-face {
	font-family: "HarmonyOS_Sans";
	src: url('font/HarmonyOS_Sans_SC_Regular.ttf');
}

html {
	font-size: 100px;
	min-height: 100%;
	display: flex;
	flex-direction: column;
}

@media screen and (max-width: 750px) {
	html {
		font-size: 13.333333vw;
	}
}

body {
	display: flex;
	flex-direction: column;
	flex: 1;
	margin: 0;
	padding: 0;
	font-family: "HarmonyOS_Sans", "微软雅黑", Arial;
	font-size: 14px;
	line-height: 1.5;
	color: #000;
	width: 100%;
	margin: 0px auto;
	background-color: #fff;
	overflow-x: hidden;
}

a {
	color: #000;
	text-decoration: none;
}

a:hover {
	color: #000;
}

img {
	border: 0;
	display: inline;
	vertical-align: bottom;
	width: auto;
	height: auto;
	max-width: 100%;
}

div,
ul,
li,
dl,
dd,
span,
h1,
h2,
p,
h4,
h3 {
	margin: 0;
	padding: 0;
	list-style: none;
}

.clear {
	clear: both;
	width: 0px;
	height: 0px;
}

.container {
	width: 81.66%;
	margin: 0px auto;
	height: auto;
}

* {
	box-sizing: border-box;
}

.flex {
	display: flex;
}

.flex-between {
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.flex-center-y {
	display: flex;
	align-items: center;
}

.flex-center {
	display: flex;
	align-items: center;
	justify-content: center;
}

.flex-column {
	display: flex;
	flex-direction: column;
}

:root {
	--linkColor: #91784d;
}

.app {
	flex: 1;
	overflow: hidden;
}

.app main {
	flex: 1;
	position: relative;
	background-color: #000;
}

.app main .text{
	position: absolute;
	top: 60%;
	width: 100%;
	left: 0;
	z-index: 10;
	display: none;
}

.app main .text img{
	width: 44%;
}

video.bgvideo {
	height: 100%;
	width: 100%;
	object-fit: cover;
	pointer-events: none;
	position: absolute;
	top: 0;
	left: 0;
}

.pageSwiper{
	position: absolute !important;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	--swiper-preloader-color: #ffffff;/
}

.header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 99;
	text-align: center;
	font-size: 2.5vw;
	line-height: 1;
	color: #fff;
}
.shadow{ position: relative;}
.header::before {
	content: "";
	display: block;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 200%;
	background: linear-gradient(to bottom, #000, rgba(0, 0, 0, .7) 30%, rgba(0, 0, 0, 0));
	background-size: 100% auto;
	pointer-events: none;
	z-index: 1;
}

.shadow::after {
	content: "";
	display: block;
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 50vh;
	background: linear-gradient(to top, #000, rgba(0, 0, 0, .7) 30%, rgba(0, 0, 0, 0));
	background-size: 100% auto;
	pointer-events: none;
	z-index:3;
}

.home .header::before,
.home .shadow::after{
	display:none;
}

.header .logo {
	position: absolute;
	top: 1.563vw;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
	display: flex;
	z-index: 10;
	font-size: 1.302vw;
	color: #ffffff;
}

.header .logo img {
	height: 1.302vw;
}

.header .container {
	position: relative;
	padding: 2.96vw 0vw;
	display: flex; align-items: center;
	margin-top: 2.1vw;
}

.header .container::after {
	content: '';
	background-color: #ffffff;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	width: 100%;
	height: 1px;
	bottom:0vw;
}

.header .menu-button {
	position: absolute;
	left: -.55vw;
	overflow: hidden;
	z-index: 99999;
	top:50%;
	transform:translateY(-50%);-webkit-transform:translateY(-50%);
	height: 2.5vw;
	width: 2.5vw;
	cursor: pointer;
}

.header .menu-button img {
	transition: .5s;
}

.header .menu-button .inactive {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	cursor: pointer;
	width: 1.354vw;
	height: 1.354vw;
}

.header .menu-button.active .inactive {
	left: -100%;
}

.header .menu-button:hover .inactive {
	transform: translate(-50%, -50%) rotate(90deg);
}

.header .menu-button .active {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	left: 100%;
	cursor: pointer;
	max-width: 100%;
}

.header .menu-button.active .active {
	left: .1rem;
}

.header .menu-button-text {
	position: absolute;
	font-size: 0.781vw;
	line-height: 1;
	top: 50%;
	transform:translateY(-50%);-webkit-transform:translateY(-50%);
	left: 2.15vw;
	color: #ffffff;
	z-index: 99;
	letter-spacing:0.2vw;
}

.header .menu {
	position: fixed;
	width: 100%;
	z-index: 100;
	height: 100%;
	left: 0;
	top: 0;
	background: rgba(0, 0, 0, 0);
	transition-delay: .2s;
	pointer-events: none;
	visibility: hidden;
	transition: all 2s;
}

.header .menu.active {
	/*background: rgba(0, 0, 0, .8);*/
	pointer-events: visible;
	visibility: visible;
}

.header .menu>ul {
	position: fixed;
	width: 38.65%;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: flex-end;
	transform: translateX(-100%);
	transition: all 1s cubic-bezier(0.89, 0.04, 0.36, 0.98);
	transition-delay: .2s;
}

.header .menu>ul::after {
	content: "";
	position: absolute;
	z-index: -1;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: rgba(0, 0, 0, 0.7);
	backdrop-filter: saturate(150%) blur(1.042vw);
    -webkit-backdrop-filter: saturate(150%) blur(0.521vw);
}

.header .menu.active>ul {
	transform: translateX(0);
	transition-delay: 0s;
	transition-duration: 1s;
	transition-timing-function: cubic-bezier(0.42, 0, 0, 0.97);
}

.header .menu ul ul {
	width: 76.5%;
	height: 100%;
	position: fixed;
	top: 0vw;
	left: 100%;
	backdrop-filter: saturate(150%) blur(0.521vw);
	-webkit-backdrop-filter: saturate(150%) blur(0.521vw);
	background: rgba(0, 0, 0, 0.9);
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: flex-end;
	pointer-events: none;
	visibility: hidden;
	opacity: 0;
}

.header .menu ul li.active ul {
	opacity: 1;
	visibility: visible;
	pointer-events: visible;
	transition: all .5s;
}

.header .menu li {
	width: 100%;
	font-size: 1.042vw;
	padding-top: 3.125vw;
}

.header .menu li .slide {
	text-align: right;
	padding-right: 14.8%;
	opacity: 0;
	transform: translate(-100%);
	transition: all 1s ease;
}

.header .menu ul li ul li .slide {
	padding-right: 25%;
}

.header .menu ul li.active ul li .slide {
	transition-property: all;
	transition-duration: 1s;
}

.header .active>ul>li>.slide {
	opacity: 1;
	transform: translate(0);
}

.header .menu li:nth-child(1) .slide {
	transition-delay: .2s;
}

.header .menu li:nth-child(2) .slide {
	transition-delay: .35s;
}

.header .menu li:nth-child(3) .slide {
	transition-delay: .45s;
}

.header .menu li:nth-child(4) .slide {
	transition-delay: .55s;
}

.header .menu li:nth-child(5) .slide {
	transition-delay: .65s;
}

.header .menu li:nth-child(6) .slide {
	transition-delay: .75s;
}

.header .menu li:nth-child(8) .slide {
	transition-delay: .85s;
}

.header .menu li:nth-child(9) .slide {
	transition-delay: .95s;
}

.header .menu ul ul li .slide {
	transition: none;
}

.header .menu li a {
	color: #fff;
	opacity: 0.6;
	transition: 0.5s;
	letter-spacing: 2px;
}

.header .menu li:hover>.slide>a,
.header .menu li.active>.slide>a {
	opacity: 1;
}

.about_banner{
	width: 100%;
	position: relative;
	height: 100vh;
}
.about_banner img{ width: 100%; height: 100%;object-fit: cover;
 object-position: top center;}
 .about_banner .box{
	position: absolute; left: 50%;top: 50%;transform: translate(-50%,-50%);
	color: #fff; z-index: 3; text-align: center;
	font-size: 2.2vw; letter-spacing: 2px; line-height: 1.4;
	width: 100%;
 }
.about_banner .box .eng{font-family: "Montserrat";}
.about_banner .box .title{font-family: "HarmonyOS_Sans";}
.about_banner .te_desc{ position: absolute; left: 50%;transform:translateX(-50%);-webkit-transform:translateX(-50%); bottom: 5.5vw; color: #fff; z-index: 20; text-align: center; font-size: 0.88vw; line-height: 1.9; width: 53.7vw;}
.about_1 .ab_one{width: 65.4%; margin: 0px auto; padding-top: 5.7vw;}
.index_bt{   font-size: 1.87vw; text-align: center; line-height: 1.1; letter-spacing: 1px;}
.header.no1 .container::after{ background-color: rgba(255,255,255,0.3);}
.header .search_1{ position: absolute; right: 0px; top: 50%;transform:translateY(-50%);-webkit-transform:translateY(-50%); width: 1.32vw; cursor: pointer;}
.header .search_1 img{ display: block;}
.about_1 .ab_one .desc{color:#646464; font-size: 0.9vw; text-align: center; line-height: 1.7; margin-top: 1.79vw; margin-bottom: 5.2vw;}
.about_1 .ab_one .pic{ margin-bottom: 5.5vw;}
.about_1 .ab_one .pic img{width: 100%; height: auto;}
.about_1 .ab_one .desc.no1{ margin-bottom: 3.2vw;}
.about_1 .ab_one .more{ width: 21vw; height: 4vw; margin: 0px auto 7.39vw; border: 1px #000 solid; font-size: 1.25vw;}
.ab_two .photo img{ width: 100%; height: auto;}
.ab_two{ text-align: center;margin-bottom: 5.5vw;}
.ab_two .desc{ width: 52.78%; margin: 0px auto;color:#646464; font-size: 0.9vw; text-align: center; line-height: 1.7; margin-top: 3.59vw; }
.about_two{ background-color: #e5e5e5;}
.index_bt .eng{font-family: "Montserrat";}
.index_bt.no1{ margin-bottom: 2.1vw;}
.about_two{ background-color: #e5e5e5; padding: 4vw 0px;}
.safe_list ul{ align-items: stretch; gap: 0.44vw;}
.safe_list ul li{ flex:1; overflow: hidden; text-align: left;}
.safe_list ul li .content{ padding-left: 2.5vw; padding-top: 2vw; min-height:22.5vw ; padding-bottom: 2vw; border-left: 1px #000 solid;}
.safe_list ul li .content .index_bt{ text-align: left; margin-bottom: 1.8vw;}
.safe_list ul li .content .desc{color:#646464; font-size: 0.9vw; line-height: 1.8; }
.safe_list ul li .photo { overflow: hidden;}
.safe_list ul li .photo img{width: 100%;transition: all .5s;}
.safe_list ul li .photo:hover img{transform: scale(1.05);}

footer{ background-image: url(../images/about_21.jpg); background-position: center; background-size: cover; padding-top: 4vw; padding-bottom: 4.45vw; background-repeat: no-repeat;position: relative;}

footer .weix{ margin-bottom: 2.86vw;}
footer .weix ul{ justify-content: flex-end; gap: 0.65vw;}
footer .weix ul li{ width: 5vw; text-align: center; font-size: 0.59vw; line-height: 1;}
footer .weix ul li img{ margin-bottom: 0.59vw;}
footer .db_menu a{ color: #fff; font-size: 0.88vw; line-height: 2;}
footer .db_menu a:last-child{ margin-top: 1.95vw;}
footer .lab{ color: #fff;font-size: 2.4vw; font-family: "Montserrat"; position: absolute; left: 50%; top: 50%;transform: translate(-50%,-50%); letter-spacing: 2px;}
footer .lab img{ height: 2.3vw;}


.technical_1{ padding: 4.29vw 0px;  text-align: center;}
.technical_1 img{ width: 42.6vw;}
.technical_2{ margin-bottom: 3.5vw;}
.technical_2 img{ width: 100%;}
.technical_3{ width: 63.5%; margin: 0px auto 5.26vw; text-align: center;}
.technical_3 .index_bt{ margin-bottom: 2vw;} 
.technical_3 .desc{color:#646464; font-size: 0.9vw; line-height: 1.8; margin-bottom: 4.6vw;}
.technical_3 .pic1 { margin-bottom: 2.57vw;}
.technical_3 .pic1 img{ width: 69%;}
.technical_3 .desc.no1{ margin-bottom: 4vw;}
.technical_3 .pic2 img{ width: 55.8%;}
.technical_4{ text-align: center; position: relative; margin-bottom: 2.8vw;}
.technical_4 img{ width: 100%;}
.technical_4 .box{ left: 50%; width: 100%;transform:translateX(-50%);-webkit-transform:translateX(-50%); top:5.7%; position: absolute; z-index: 1; line-height: 2;}
.technical_5{ text-align: center; margin-bottom: 9.2vw;}
.technical_5 .desc{color:#646464; font-size: 0.9vw; line-height: 1.8; }
.technical_5 .index_bt{ margin-bottom: 1.69vw;}
.technical_5 .more{ text-decoration: underline; font-size: 1.25vw;}
.technical_5 .pic1{ margin-top: 0.9vw;}
.technical_5 .pic1 img{ width: 13.3vw;}
.solu_1{ width: 100%; position: relative; flex: 1; display: flex;}
.solu_1 .swiper{width: 100%;}
.solu_1 ul li .container{ left: 50%;transform:translateX(-50%);-webkit-transform:translateX(-50%); top: 9vw; z-index: 10; position: absolute;}
.solu_1 ul li .container{ display: flex; justify-content: flex-end;}
.solu_1 ul li .container .content{ width: 36.3%; color: #fff; font-size: 0.9vw; line-height: 1.8; }
.solu_btn{ position: absolute;z-index: 10;left: 50%;transform:translateX(-50%);-webkit-transform:translateX(-50%); bottom: 5.7vw; color: #fff; width:66.7%;} 
.solu_btn { display: flex; align-items: stretch; justify-content:space-between; gap: 2.1vw;}
.solu_btn .items{flex:1; overflow: hidden; border-top: 0.39vw #fff solid; opacity: .3; cursor: pointer;}
.solu_btn .items .title{ line-height: 1; font-size: 1.38vw; padding: 1.11vw 0px; margin-bottom: 1vw;}
.solu_btn .items .title .eng{font-size: 1.66vw;font-family: "Montserrat";  padding-right: 0.67vw; margin-right: 0.67vw; display: inline-block; position: relative;}
.solu_btn .items .infor{color: #fff; font-size: 0.9vw; line-height: 1.5;}
.solu_btn .items.active{ opacity: 1;}
.solu_btn .items .title .eng:before{ content: ""; position: absolute; right: 0px; width: 1px; height: 90%; background-color: #fff; top: 50%;transform:translateY(-50%);-webkit-transform:translateY(-50%);}
.solu_1 ul li:nth-child(2) .container{ justify-content: flex-start;}
.solu_1 ul li:nth-child(3) .container{ justify-content: flex-start;}
.solu_1 ul li:nth-child(2) .container .content{ width: 21.7%;}
.solu_1 ul li:nth-child(3) .container .content{ width: 25.5%;}
.solu_1 ul li:nth-child(3) .container .content .txt{font-size: 1.25vw; margin-bottom: 1.82vw;}
.solu_1 ul li{position: relative;}
.solu_1 ul li img{ width: 100%; height: 100%;object-fit: cover;
 object-position: center center; position: absolute;}
 .contact_one{ position: relative; width: 100%; height: 100vh; color: #fff;}
 .contact_one .img1{ width: 100%; height: 100%;object-fit: cover;
 object-position: top center;}
.contact_one.shadow::after{ display: none !important;}
.contact_one .con_bt{ left: 50%;transform:translateX(-50%);-webkit-transform:translateX(-50%); top: 21.6%; position: absolute; z-index: 50;}
.contact_one .con_bt .title{ font-size: 4.57vw; letter-spacing: 3px;}
.contact_one .con_bt .desc{ font-size: 1.25vw;}
.con_bottom{ left: 50%;transform:translateX(-50%);-webkit-transform:translateX(-50%); bottom: 4vw; position: absolute; z-index: 50; font-size: 1.25vw;}
.contact_one .container{ width: 66%;}
.con_bottom .content{ font-size: 1.25vw;}

.con_bottom .weix{ }
.con_bottom .weix ul{ justify-content: flex-end; gap: 0.65vw; align-items: stretch;}
.con_bottom .weix ul li{ width: 5.54vw; text-align: center; font-size: 0.7vw; line-height: 1;}
.con_bottom .weix ul li img{ margin-bottom: 0.59vw;}

.technical_2 ul{ align-items: stretch;}
.technical_2 ul li:nth-child(3){ width: 32.9%;}
.technical_2 ul li:nth-child(1){ width: 28.8%;}
.technical_2 ul li:nth-child(2){ width: 34.9%;}
.technical_2 ul li { overflow: hidden;}
.technical_2 ul li img{ width:100%; height:100%;object-fit: cover;
 object-position: center center;transition:all .5s;-webkit-transition:all .5s;}
.technical_2 ul li:hover img{transform:scale(1.05);-webkit-transform:scale(1.05);}

@media (max-width:1200px) {
	.header .menu li {
		font-size: 14px;
		padding-top: 30px;
	}

	.header .menu>ul {
		width: 100%;
	}

	.header .menu ul li ul li .slide,
	.header .menu li .slide {
		padding-right: 0;
		text-align: center;
	}

	.header .menu ul ul {
		left: 0;
		z-index: 50;
		width: 100%;
		backdrop-filter: saturate(150%) blur(10px);
		-webkit-backdrop-filter: saturate(150%) blur(10px);
		background: rgba(0, 0, 0, .9);
	}

	.header .logo {
		z-index: 999;
	}

	.header .container .closebtn {
		position: absolute;
		top: 50%;
		margin-top: -.2rem;
		right: 5%;
		width: 0.4rem;
		height: 0.4rem;
		background-image: url(../images/close.png);
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		z-index: 200;
		cursor: pointer;
		display: none;
	}
}

@media (max-width:1100px) {

	.container {
		width: 92%;
	}

	.text .container{
		width: 90%;
	}

	.header .container {
		padding: 0.64rem 0px;
	}

	.header .container::after {
		display: none;
	}

	.header .logo {
		width: 2.5rem;
		top: 50%;
		left: 50%;
		transform: translate(-50%, -50%);
	}

	.header .logo img {
		width: 100%;
		height: auto;
	}

	.header .menu-button {
		width: .48rem;
		height: .48rem;
		
	}

	.header .menu-button .inactive {
		width: 0.3rem;
		height: 0.3rem;
	}

	.header .menu-button-text {
		font-size: 12px;
		
		line-height: 0.3rem;
		left: 0.62rem;
	}

	.header .menu-button .active {
		width: 100%;
	}
		.header .search_1{ width:.30rem;}
}
@media (max-width:768px) {
	.about_banner .box{ font-size: 20px;}
	.about_1 .ab_one{ width: 100%; padding-top: 40px;}
	.index_bt{ font-size: 18px;}
	.about_1 .ab_one .desc{ font-size: 12px; margin-top: 15px; margin-bottom: 40px;}
	.about_1 .ab_one .pic{ margin-bottom: 30px;}
	.about_1 .ab_one .desc.no1{ margin-bottom: 25px;}
	.about_1 .ab_one .more{ font-size: 14px; width: 160px; height: 40px; margin-bottom: 45px;}
	.ab_two .desc{ width: 100%; font-size: 12px; margin-top: 25px;}
	.ab_two{ margin-bottom: 35px;}
	.index_bt.no1{ margin-bottom: 15px;}
	.safe_list ul{ flex-direction: column;}
	.safe_list ul li{ flex:none; width: 100%;}
	.about_two{ padding: 25px 0px;}
	.safe_list ul { gap: 5px;}
	.safe_list ul li .content{ border-left: 0px; padding: 20px 0px;}
	.safe_list ul li .content .desc{ font-size: 12px;}
	footer{ padding: 25px 0px; background-position: left 20% center;}
	footer .weix ul li{ width: 60px; font-size: 10px;}
	footer .weix ul{ align-items: stretch; gap: 10px;}
	footer .weix ul li .txt{ margin-top: 5px;}
	footer .db_menu a{ font-size: 14px;}
	.header .container::after { height: 1px;}
	.about_banner .te_desc{ font-size: 11px; width: 90%;}
.technical_1{ padding: 25px 0px;}
.technical_1 img{ width: 60%;}
.technical_2{ margin-bottom: 30px;}
.technical_3{ width: 100%; margin-bottom: 30px;}
.technical_3 .desc{ font-size: 12px; margin-bottom: 25px;}
.technical_3 .index_bt{ margin-bottom: 15px;}
.technical_3 .pic1{ margin-bottom: 20px;}
.technical_3 .desc.no1{ margin-bottom: 25px;}
.technical_4 .box{ font-size: 12px; line-height: 1.7;}
.technical_4{ margin-bottom: 25px;}
.technical_5 .desc{ font-size: 12px;}
.technical_5 .index_bt{ margin-bottom: 15px;}
.technical_5 .more{ font-size: 14px;}
.technical_5 .pic1 img{ width: 100px;}
.technical_5 .pic1{ margin-top: 7px;}
.technical_5{ margin-bottom: 36px;}
footer .lab{ display: none;}
.solu_1 ul li .container{ top: 20%;}
.solu_1 ul li .container .content{ font-size: 12px;}
.solu_1 ul li:nth-child(3) .container .content{ width: 80%;}
.solu_1 ul li:nth-child(3) .container .content .txt{ font-size: 16px; margin-bottom: 15px;}
.solu_1 ul li:nth-child(2) .container .content{ width: 80%;}
.solu_1 ul li .container .content{ width: 80%;}
.solu_btn{ width: 95%; gap: 10px;}
.solu_btn .items .infor{ font-size: 10px;}
.solu_btn .items .title{ font-size: 14px; padding: 10px 0px; margin-bottom: 0px;}
.solu_btn .items .title .eng{ font-size: 14px; padding-right: 10px; margin-right: 10px;}
.contact_one .container{ width: 90%;}
.contact_one .con_bt .desc{ font-size: 14px;}
.con_bottom .content{ font-size: 14px;}
.con_bottom{ flex-wrap: wrap; gap: 25px;}
.contact_one .con_bt .title{ font-size: 30px;}
.con_bottom .weix ul li{ width: 60px; font-size: 10px;}
.con_bottom .weix ul{ gap: 10px;}
.con_bottom .weix ul li img{ margin-bottom: 7px;}
}

@media (max-width:640px){
	.about_banner .te_desc{
		bottom: 10%;
	}
	.app main .text{
		top: 70%;
	}
	.app main .text img{
		width: 70%;
	}
}