* {
	margin: 0;
	padding: 0;
}

.class_name{
	text-align: center;
	font-family: "Montserrat-SemiBold";
	font-weight: 600;
	font-size: 0.45rem;
	color: #000000;
}
.class_cont{
	text-align: center;
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.2rem;
	color: #000000;
	line-height: 1.75;
	margin-top: 0.26rem;
}



.index_banner {
	width: 100%;
	height: 9rem;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	padding-top: 2.54rem;
	position: relative;
	z-index: 1;
	overflow: hidden;
}

.index_banner::before {
	content: "";
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	bottom: 0;
	width: 100%;
	height: 0.7rem;
	background: url(../img/index_bg.png) center no-repeat;
	background-size: 100% 100%;
}

.index_banner .banner_box {
	width: 8.12rem;
}

.index_banner .banner_box .banner_title {
	text-align: center;
	font-family: Montserrat-SemiBold;
	font-weight: 600;
	font-size: 0.65rem;
	color: #FFFFFF;
}

.index_banner .banner_box .banner_title span {
	color: #D30001;
}

.index_banner .banner_box .banner_txt {
	text-align: center;
	font-family: Montserrat-Light;
	font-weight: 300;
	font-size: 0.25rem;
	color: #FFFFFF;
	line-height: 1.6;
	margin: 0.34rem auto 0.59rem;
}

.index_banner .banner_box .banner_txt a {
	font-family: Montserrat-Bold;
	font-weight: bold;
}

.index_banner .banner_box .banner_txt a:hover {
	color: #D30001;
}

.index_banner .banner_box .banner_list {
	width: 100%;
	width: 10rem;
	display: flex;
	column-gap: 0.1rem;
	align-items: stretch;
}

.index_banner .banner_box .banner_list .banner_item {
	background: none;
	perspective: 1200px;
	cursor: pointer;
}
.index_banner .banner_box .banner_list .banner_item .flip-card {
	width: 100%;
	height: 100%;
	position: relative;
	text-align: center;
	transition: transform 1.5s cubic-bezier(0.23, 1, 0.32, 1);
	transform-style: preserve-3d;
	border-radius: 0.1rem;
}
.index_banner .banner_box .banner_list .banner_item:hover .flip-card {
	transform: rotateY(180deg);
}
.index_banner .banner_box .banner_list .banner_item .front,
.index_banner .banner_box .banner_list .banner_item .back {
	position: relative;
	grid-area: 1 / 1 / 2 / 2;
	backface-visibility: hidden;
	border-radius: 0.1rem;
	padding: 0.17rem 0.17rem 0.22rem;
	box-sizing: border-box;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: flex-start;
	transition: all 1s ease;

	height: 1.38rem;
	overflow: hidden;
}
.index_banner .banner_box .banner_list .banner_item .flip-card {
	display: grid;
	grid-template-columns: 1fr;
	grid-template-rows: auto;
}
.index_banner .banner_box .banner_list .banner_item .front {
	transform: rotateY(0deg);
	background: linear-gradient(134deg, #35A7FD 0%, #215AF0 100%);
}
.index_banner .banner_box .banner_list .banner_item .back {
	transform: rotateY(180deg);
	/* background: linear-gradient(134deg, #1a5bbf 0%, #0e3a7a 100%); */
	background: linear-gradient(134deg, #35A7FD 0%, #215AF0 100%);
}
.index_banner .banner_box .banner_list .banner_item:nth-child(2) .front {
	background: linear-gradient(134deg, #CD4DF4 0%, #9017B4 100%);
}

.index_banner .banner_box .banner_list .banner_item:nth-child(2) .back {
	/* background: linear-gradient(134deg, #a63bc9 0%, #6b1288 100%); */
	background: linear-gradient(134deg, #CD4DF4 0%, #9017B4 100%);
}

.index_banner .banner_box .banner_list .banner_item:nth-child(3) .front {
	background: linear-gradient(133deg, #F97014 0%, #B15111 100%);
}

.index_banner .banner_box .banner_list .banner_item:nth-child(3) .back {
	/* background: linear-gradient(133deg, #d45a12 0%, #8a3d0e 100%); */
	background: linear-gradient(133deg, #F97014 0%, #B15111 100%);
}
.index_banner .banner_box .banner_list .banner_item .front img,
.index_banner .banner_box .banner_list .banner_item .back img{
	width: 0.42rem;
	height: 0.42rem;
	object-fit: contain;
	margin: 0 auto 0.1rem;
	display: block;
}
.index_banner .banner_box .banner_list .banner_item .front p,
.index_banner .banner_box .banner_list .banner_item .back p{
	text-align: center;
	font-family: "Montserrat-Bold";
	font-weight: bold;
	font-size: 0.18rem;
	color: #FFFFFF;
	line-height: 1.38888;
	margin: 0;
}
.index_banner .banner_box .banner_list .banner_item .front,
.index_banner .banner_box .banner_list .banner_item .back,
.index_banner .banner_box .banner_list .banner_item .flip-card {
	border-radius: 0.1rem;
}
.index_banner .banner_box .banner_list .banner_item {
	width: calc(33.33% - 0.06667rem);
	background: transparent !important;
	padding: 0 !important;
	transition: transform 1s ease;
}

.index_banner .banner_down {
	width: 0.28rem;
	height: 0.28rem;
	position: absolute;
	bottom: 0.6rem;
	left: 50%;
	transform: translateX(-50%);
}

.index_banner .banner_down img {
	width: 100%;
	height: 100%;
	object-fit: contain;
}






.optical {
	position: relative;
	z-index: 2;
	width: 100%;
	height: 10.8rem;
	margin-top: -0.7rem;
	padding-top: 1.98rem;
	background: #e7e7e9;
	overflow: hidden;
	z-index: 0;
}

.optical>img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	z-index: -1;
}

.optical .main {
	margin-top: 1.78rem;
	display: flex;
	justify-content: right;
}

.optical .optical_ul {
	width: 6.1rem;
	display: flex;
	flex-direction: column;
	row-gap: 0.31rem;
}

.optical .optical_ul a {
	font-family: "Montserrat-Light";
	font-weight: 300;
	font-size: 0.3rem;
	color: #000000;
	padding-left: 0.17rem;
	position: relative;
}

.optical .optical_ul a::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0.15rem;
	width: 0.1rem;
	height: 0.1rem;
	background: #D30001;
	border-radius: 50%;
}

.optical .optical_ul a:last-child {
	margin-top: 0.2rem;
	padding-left: 0;
}

.optical .optical_ul a:last-child::before {
	display: none;
}

.optical .optical_ul a:hover {
	color: #D30001;
}










.full{
    width: 100%;
    height: 10.3rem;
    background: #000;
	background-size: cover;
    padding-top: 1.48rem;
	position: relative;
	overflow: hidden;
}
.full .full_bg{
	position: absolute;
	width: 17rem;
	height: 17rem;
	border-radius: 50%;
    background: url(../img/full_bg1.png) center center no-repeat;
	background-size: cover;
	opacity: 0.8;
    pointer-events: none;
    z-index: 0;
}



.full .main{
	position: relative;
	z-index: 1;
}
.full .class_name,
.full .class_cont{
    color: #fff;
}
.full .full_box{
	margin-top: 0.8rem;
	display: flex;
	column-gap: 0.4rem;
	/*justify-content: space-between;*/
	
	
}
.full .full_box .full_item{
	width: calc(20% - 0.32rem);
	height: 5.5rem;
	border-radius: 0.1rem;
	padding: 0.42rem 0.25rem 0.95rem 0.25rem;
	box-sizing: border-box;
	position: relative;
	transform: translateY(0rem);
	transition: transform 0.3s ease;
	background: linear-gradient( 180deg, #215AF0CC 0%, #35A7FDCC 100%);
}
.full .full_box .full_item:nth-child(2){
	background: linear-gradient( 180deg, #77D37DCC 0%, #208927CC 100%);
}
.full .full_box .full_item:nth-child(3){
	background: linear-gradient( 180deg, #CD4DF4CC 0%, #9017B4CC 100%);
}
.full .full_box .full_item:nth-child(4){
	background: linear-gradient( 180deg, #F97014CC 0%, #B15111CC 100%);
}
.full .full_box .full_item:nth-child(5){
	background: linear-gradient( 180deg, #F21C1ECC 0%, #B20506CC 100%);
}
.full .full_box .full_item:hover{
	transform: translateY(-0.32rem);
	background: linear-gradient( 180deg, #215AF0 0%, #35A7FD 100%);
}
.full .full_box .full_item:nth-child(2):hover{
	background: linear-gradient( 180deg, #77D37D 0%, #208927 100%);
}
.full .full_box .full_item:nth-child(3):hover{
	background: linear-gradient( 180deg, #CD4DF4 0%, #9017B4 100%);
}
.full .full_box .full_item:nth-child(4):hover{
	background: linear-gradient( 180deg, #F97014 0%, #B15111 100%);
}
.full .full_box .full_item:nth-child(5):hover{
	background: linear-gradient( 180deg, #F21C1E 0%, #B20506 100%);
}
.full .full_box .full_item .full_title{
	width: 100%;
	text-align: center;
	font-family: "Montserrat-Bold";
	font-weight: bold;
	font-size: 0.24rem;
	color: #FFFFFF;
}
.full .full_box .full_item .full_cont{
	width: 100%;
	margin-top: 0.26rem;
	padding-top: 0.23rem;
	border-top: 0.01rem solid rgba(255,255,255,0.4);
	font-family: "Montserrat-Light";
	font-weight: 300;
	font-size: 0.18rem;
	color: #FFFFFF;
	line-height: 1.9444;
}
.full .full_box .full_item .full_more{
	width: calc(100% - 0.5rem);
	height: 0.44rem;
	position: absolute;
	display: flex;
	justify-content: center;
	align-items: center;
	column-gap: 0.17rem;
	bottom: 0.29rem;
	background: rgba(255,255,255,0.15);
	border-radius: 0.05rem;
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.2rem;
	color: #FFFFFF;
}
.full .full_box .full_item .full_more i{
	width: 0.21rem;
	height: 0.21rem;
	background: rgba(255,255,255,0);
	border: 0.01rem solid #FFFFFF;
	border-radius: 50%;
	position: relative;
	overflow: hidden;
}
.full .full_box .full_item .full_more i::before{
	content: "";
	position: absolute;
	left: 0.11rem;
	bottom: 0.11rem;
	width: 0.07rem;
	height: 0.07rem;
	background: #FFFFFF;
	border-radius: 50%;
}
.full .full_box .full_item:hover .full_more,
.full .full_box .full_item:hover .full_more i::before{
	background: #fff;
	color: #2872f4;
}
.full .full_box .full_item:hover .full_more i{
	background: #2872f4;
	border-color: #2872f4;
}
.full .full_box .full_item:nth-child(2):hover .full_more{
	color: #4daf53;
}
.full .full_box .full_item:nth-child(3):hover .full_more{
	color: #c848ee;
}
.full .full_box .full_item:nth-child(4):hover .full_more{
	color: #f46e14;
}
.full .full_box .full_item:nth-child(5):hover .full_more{
	color: #D30001;
}
.full .full_box .full_item:nth-child(2):hover .full_more i{
	background: #4daf53;
	border-color: #4daf53;
}
.full .full_box .full_item:nth-child(3):hover .full_more i{
	background: #c848ee;
	border-color: #c848ee;
}
.full .full_box .full_item:nth-child(4):hover .full_more i{
	background: #f46e14;
	border-color: #f46e14;
}
.full .full_box .full_item:nth-child(5):hover .full_more i{
	background: #D30001;
	border-color: #D30001;
}









.product{
	width: 100%;
	height: 10.5rem;
	background: url(../img/product_bg.png) center center no-repeat;
	background-size: cover;
	padding-top: 1.32rem;
	box-sizing: border-box;
}
.product .product_list{
	margin-top: 0.8rem;
	display: flex;
	column-gap: 0.3rem;
}
.product .product_list .product_item{
	width: calc(33.33% - 0.2rem);
	background: #FFFFFF;
	box-shadow: 0rem 0rem 0.35rem 0.01rem rgba(0,0,0,0.1);
	border-radius: 0.1rem;
	overflow: hidden;
}
.product .product_list .product_item .product_img{
	width: 100%;
	height: 3.4rem;
	overflow: hidden;
	border-radius: 0.1rem;
}
.product .product_list .product_item .product_img img{
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: all 0.6s;
}
.product .product_list .product_item .product_txt{
	padding: 0.33rem 0.26rem 1.2rem;
	box-sizing: border-box;
	position: relative;
}
.product .product_list .product_item .product_title{
	text-align: center;
	font-family: "Montserrat-SemiBold";
	font-weight: 600;
	font-size: 0.35rem;
	color: #000000;
} 
.product .product_list .product_item .product_cont{
	width: 100%;
	margin-top: 0.22rem;
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.18rem;
	color: #4D4D4D;
	line-height: 1.666;
	height: 1.5rem;
}
.product .product_list .product_item .product_more{
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	bottom: 0.3rem;
	width: 1.75rem;
	height: 0.45rem;
	border-radius: 0.05rem;
	border: 0.01rem solid #DDDDDD;
	display: flex;
	justify-content: center;
	align-items: center;
	column-gap: 0.15rem;
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.18rem;
	color: #ADADAD;
}
.product .product_list .product_item .product_more i{
	width: 0.17rem;
	height: 0.17rem;
	border: 0.01rem solid #D5D5D5;
	border-radius: 50%;
	position: relative;
	overflow: hidden;
}
.product .product_list .product_item .product_more i::before{
	content: "";
	position: absolute;
	left: 0.09rem;
	bottom: 0.09rem;
	width: 0.05rem;
	height: 0.05rem;
	background: #D8D8D8;
	border-radius: 50%;
}
.product .product_list .product_item:hover{
	box-shadow: 0rem 0rem 0.35rem 0.01rem rgba(0,0,0,0.25);
}
.product .product_list .product_item:hover .product_img img{
	transform: scale(1.1);
}
.product .product_list .product_item:hover .product_title{
	color: #D30001;
}
.product .product_list .product_item:hover .product_more{
	background: #D30001;
	color: #FFFFFF;
}
.product .product_list .product_item:hover .product_more i{
	background: #fff;
	border-color: #ffffff;
}
.product .product_list .product_item:hover .product_more i::before{
	background: #D30001;
}









.why{
	width: 100%;
	height: 8.82rem;
	background:#000 url(../img/why_bg.png) center center no-repeat;
	background-size: cover;
	padding-top: 1.32rem;
	box-sizing: border-box;
}
.why .class_name{
	color: #fff;
}
.why .why_box{
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-top: 0.9rem;
}
.why .why_fl,
.why .why_fr{
	width: 5.73rem;
	height: auto;
	display: flex;
	flex-direction: column;
	row-gap: 0.93rem;
}
.why .why_cn{
	position: relative;
	width: 4.4rem;
	height: 4.4rem;
}
.why .why_cn>img{
	width: 1.88rem;
	height: 1.15rem;
	object-fit: contain;
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
}
.why .why_cn span {
    width: 4.35rem;
    height: 4.35rem;
    border-radius: 50%;
    border: 0.01rem solid #FF0000;
    display: block;
    animation: spin 6s infinite linear;
    transform-origin: 50% 49%;
    transition: .6s ease;
}

.why .why_cn span:not(:first-child) {
    position: absolute;
    top: 0;
    left: 0
}

.why .why_cn span:nth-child(2) {
    animation: spin2 10s infinite linear;
    transform-origin: 48% 48%;
}

.why .why_cn span:nth-child(3) {
        transform-origin: 49% 49%;
    border: none;
    /* box-shadow: 0 0px 6px 6px #FF0000; */
    background: url(../img/why_bg2.png) center no-repeat;
    background-size: cover;
    width: 5.35rem;
    height: 5.35rem;
    top: -0.5rem;
    left: -0.5rem;
}

@keyframes spin {
    100% {
        transform: rotate(1turn)
    }
}

@keyframes spin2 {
    100% {
        transform: rotate(-1turn)
    }
}

.why_box .why_item{
	width: 5.32rem;
	height: 1.5rem;
	background: url(../img/why_fl.png) center center no-repeat;
	background-size: cover;
	padding: 0.2rem 0.33rem 0.19rem 0.19rem;
}
.why_box .why_fr .why_item{
	background: url(../img/why_fr.png) center center no-repeat;
	background-size: cover;
	padding: 0.2rem 0.19rem 0.19rem 0.33rem;
}
.why_box .why_item h3{
	font-family: "Montserrat-SemiBold";
	font-weight: 600;
	font-size: 0.25rem;
	color: #ffffff;
}
.why_box .why_item p{
	margin-top: 0.12rem;
	font-family: "Montserrat-Light";
	font-weight: 300;
	font-size: 0.16rem;
	color: #ffffff;
	line-height: 1.5625;
}
.why_box .why_fl .why_item:first-child,
.why_box .why_fr .why_item:last-child{
	margin-left: 0.41rem;
}

.why .why_fl .why_item:last-child{
    background: url(../img/why_fl1.png) center center no-repeat;
}
.why_box .why_fr .why_item:last-child{
    background: url(../img/why_fr2.png) center center no-repeat;
}





.contact{
	background: #F8F8F8;
	padding-top: 0.6rem;
}
.contact .main{
	max-width: 18rem;
	height: 4.2rem;
	padding: 0 0.7rem;
	box-sizing: border-box;
	display: flex;
	align-items: center;
	justify-content: space-between;
	border-radius: 0.3rem;
}
.contact .main::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(113deg, #00031d87 0%, rgba(84, 86, 104, 0) 100%);
    border-radius: 0.3rem;
}
.contact .contact_box,
.contact .contact_btn{
    position: relative;
    z-index: 2;
}
.contact .contact_box h4{
	font-family: "Montserrat-SemiBold";
	font-weight: 600;
	font-size: 0.45rem;
	color: #FFFFFF;
}
.contact .contact_box p{
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.25rem;
	color: #FFFFFF;
	margin-top: 0.16rem;
}
.contact .contact_btn{
	width: 2.3rem;
	height: 0.6rem;
	background: #D30001;
	border-radius: 0.1rem;
	display: flex;
	justify-content: center;
	align-items: center;
	column-gap: 0.2rem;
	font-family: "Montserrat-Regular";
	font-weight: 400;
	font-size: 0.2rem;
	color: #FFFFFF;
}
.contact .contact_btn i{
	width: 0.21rem;
	height: 0.21rem;
	background: rgba(255,255,255,0);
	border: 0.01rem solid #FFFFFF;
	border-radius: 50%;
	position: relative;
}
.contact .contact_btn i::before{
	content: "";
	position: absolute;
	left: 0.1rem;
	bottom: 0.1rem;
	width: 0.07rem;
	height: 0.07rem;
	background: #FFFFFF;
	border-radius: 50%;
}
.contact .contact_btn:hover i{
	background: #fff;
	border-color: #ffffff;
}
.contact .contact_btn:hover i::before{
	background: #D30001;
}








@media screen and (max-width: 1043px) {
	.class_name{
		font-size: 32px;
	}
	.class_cont{
		font-size: 18px;
	}



    .index_banner{
		height: auto;
		padding: 40px 0 80px;
	}
	.index_banner .banner_box{
		width: 100%;
	}
	.index_banner .banner_box .banner_title{
		font-size: 36px;
	}
	.index_banner .banner_box .banner_txt{
		font-size: 20px;
		margin: 10px auto 30px;
	}
	.index_banner .banner_box .banner_list{
		column-gap: 10px;
		padding: 0 40px;
		width: 100%;
	}
	.index_banner .banner_box .banner_list .banner_item .front, 
	.index_banner .banner_box .banner_list .banner_item .back{
		height: auto;
		padding: 15px;
	}
	.index_banner .banner_box .banner_list .banner_item .front img, 
	.index_banner .banner_box .banner_list .banner_item .back img{
		width: 36px;
		height: 36px;
		margin: 0 auto 8px;
	}
	.index_banner .banner_box .banner_list .banner_item .front p, 
	.index_banner .banner_box .banner_list .banner_item .back p{
		font-size: 14px;
	}

	.index_banner .banner_down{
		width: 20px;
        height: 20px;
        display: flex;
        bottom: 15px;
	}



	.optical{
		height: auto;
		padding-top: 142px;
	}
	.optical>img{
		top: auto;
        bottom: 40px;
        transform: translateX(-50%);
        height: auto;
	}
	.optical .main{
		margin: 80px auto 60px;
	}
	.optical .optical_ul{
		width: 40%;
        row-gap: 16px;
	}
	.optical .optical_ul a{
		font-size: 18px;
		padding-left: 16px;
	}
	.optical .optical_ul a::before{
		width: 8px;
		height: 8px;
		top: 6px;
	}










	.full{
		height: auto;
		padding: 60px 0 80px;
	}
	.full .full_bg{
		width: 9rem;
		height: 9rem;
	}
	.full .full_box{
		margin-top: 50px;
		column-gap: 12px;
		flex-wrap: wrap;
		row-gap: 12px;
		justify-content: center;
	}
	.full .full_box .full_item{
		width: calc(33.33% - 8px);
        padding: 20px 10px 60px 10px;
        border-radius: 10px;
        height: auto;
	}
	.full .full_box .full_item .full_title{
		font-size: 18px;
	}
	.full .full_box .full_item .full_cont{
		font-size: 16px;
        margin-top: 10px;
        padding-top: 8px;
		line-height: 1.8;
	}
	.full .full_box .full_item .full_more{
		font-size: 16px;
        width: calc(100% - 20px);
        height: 36px;
        bottom: 15px;
	}
	.full .full_box .full_item .full_more i,
	.product .product_list .product_item .product_more i{
		width: 20px;
		height: 20px;
	}
	.full .full_box .full_item .full_more i::before,
	.product .product_list .product_item .product_more i::before{
		width: 6px;
		height: 6px;
		left: 10px;
		bottom: 10px;
	}




	.product{
		height: auto;
		padding: 60px 0 80px;
	}
	.product .product_list{
		margin-top: 50px;
		column-gap: 12px;
	}
	.product .product_list .product_item{
		width: calc(33.33% - 8px);
	}
	.product .product_list .product_item .product_img{
		height: 0;
		padding-bottom: 64%;
		position: relative;
	}
	.product .product_list .product_item .product_img img{
		width: 100%;
		height: auto;
	}
	.product .product_list .product_item .product_txt{
		padding: 15px 10px 70px;
	}
	.product .product_list .product_item .product_title{
		font-size: 18px;
	}
	.product .product_list .product_item .product_cont{
		font-size: 14px;
		margin-top: 10px;
		-webkit-line-clamp: 3;
	}
	.product .product_list .product_item .product_more{
		width: 160px;
		height: 36px;
		font-size: 16px;
		bottom: 15px;
	}





	.why{
		height: auto;
		padding: 60px 0 80px;
	}
	.why .why_box{
		margin-top: 40px;
	}
	.why .why_fl, .why .why_fr{
		width: calc(50% - 100px);
		row-gap: 30px;
	}
	.why .why_fr{
		align-items: flex-end;
	}
	.why .why_cn,
	.why .why_cn span{
		width: 200px;
		height: 200px;
	}
	.why .why_cn>img{
		width: 75%;
		height: auto;
	}
	.why_box .why_item{
		width: 90%;
		height: auto;
		padding: 15px;
		margin: 0 !important;
		background-size: 100% 100% !important;
	}
	.why_box .why_item h3{
		font-size: 16px;
	}
	.why_box .why_item p{
		font-size: 12px;
		margin-top: 10px;
	}

    .why .why_cn span:nth-child(3){
        width: 250px;
        height: 250px;
        top: -25px;
        left: -25px;
    }









	.contact{
		padding-top: 40px;
	}
	.contact .main{
		flex-wrap: wrap;
		border-radius: 20px;
		padding: 50px 45px;
		height: auto;
		row-gap: 30px;
	}
	.contact .contact_box h4{
		font-size: 38px;
	}
	.contact .contact_box p{
		font-size: 22px;
		margin-top: 10px;
	}
	.contact .contact_btn{
		width: fit-content;
		font-size: 18px;
		height: auto;
		padding: 12px 20px;
		border-radius: 6px;
		column-gap: 16px;
	}
	.contact .contact_btn i{
		width: 20px;
		height: 20px;
		overflow: hidden;
	}
	.contact .contact_btn i::before{
		width: 8px;
		height: 8px;
		left: 8px;
		bottom: 8px;
	}
}
/* 手机版 */
@media screen and (max-width: 769px) {
	.class_name{
		font-size: 24px;
	}
	.class_cont{
		font-size: 14px;
		line-height: 1.6;
	}




	.index_banner .banner_box .banner_title{
		font-size: 24px;
	}
	.index_banner .banner_box .banner_txt{
		font-size: 14px;
	}
	.index_banner .banner_box .banner_list{
		padding: 0;
		row-gap: 10px;
		flex-wrap: wrap;
	}
	.index_banner .banner_box .banner_list .banner_item{
	    width: calc(50% - 5px);
	}
	.index_banner .banner_box .banner_list .banner_item .front, 
	.index_banner .banner_box .banner_list .banner_item .back{
		padding: 10px 5px;
	}
	.index_banner .banner_box .banner_list .banner_item .front p, 
	.index_banner .banner_box .banner_list .banner_item .back p{
		font-size: 10px;
	}




	.optical .class_name{
		position: absolute;
		top: 80px;
	}
	.optical>img{
		position: initial;
        transform: none;
	}
	.optical .main{
		margin: 0 auto 60px;
	}
	.optical .optical_ul{
		width: 100%;
	}



	.full{
		padding: 30px 0 40px;
	}
	.full .full_box{
		margin-top: 30px;
	}
	.full .full_box .full_item{
		width: calc(50% - 6px);
	}
	.full .full_box .full_item .full_title{
		font-size: 16px;
	}
	.full .full_box .full_item .full_cont{
		font-size: 12px;
		line-height: 1.6;
	}
	.full .full_box .full_item .full_more,
	.product .product_list .product_item .product_more{
		font-size: 14px;
	}


    .product .product_list .product_item .product_cont{
        height: auto;
    }



	.product{
		padding: 30px 0 40px;
	}
	.product .product_list{
		flex-wrap: wrap;
		row-gap: 20px;
		margin-top: 30px;
	}
	.product .product_list .product_item{
		width: 100%;
	}


	.why{
		padding: 30px 0 40px;
	}
	.why .why_box{
		flex-direction: column;
		row-gap: 30px;
	}
	.why .why_fl, .why .why_fr{
		width: 100%;
	}
	.why_box .why_item,
	.why_box .why_fr .why_item{
		width: 100%;
		background: linear-gradient(71deg, #215AF0 0%, #35A7FD 100%);
		border-radius: 10px;
		padding: 15px;
	}
    .why .why_fl .why_item:last-child{
        background: linear-gradient( 71deg, #CD4DF4 0%, #9017B4 100%);
    }
    .why_box .why_fr .why_item{
        background: linear-gradient( 109deg, #77D37D 0%, #208927 100%);
    }
    .why_box .why_fr .why_item:last-child{
        background: linear-gradient( 109deg, #F97014 0%, #B15111 100%);
    }


	.contact .contact_box h4{
		font-size: 24px;
	}
	.contact .contact_box p{
		font-size: 18px;
	}
	.contact .contact_btn{
		font-size: 16px;
	}
	.contact .main{
		padding: 30px 25px;
	}
}