.br_banner{width: 100%;position: relative;background: url('../images/bg_banner.webp') no-repeat;background-size: 100% 100%;padding-top: 128px;}
.br_banner_c{width: 100%;height:800px;position: relative;}
.br_banner_c .swiper{width: 100%;height:100%;position: relative;}
.br_banner_c .swiper-slide{width: 100%;height:100%;position: relative;overflow: hidden;}
.br_banner_c .swiper-slide .br_banner_box{width: 100%;position: absolute;top: 0;left: 0;color: #ffffff;}
.br_banner_c .swiper-slide .br_text{width: calc(100% - 680px);position: relative;margin-top: 100px;transform: translateX(-500px);opacity: 0;transition:all 1s ease-in-out;}
.br_banner_c .swiper-slide .br_text .br_mtit{font-size: 14px;font-weight: bold;}
.br_banner_c .swiper-slide .br_text .br_tit{font-size: 48px;font-weight: bold;margin-top: 12px;}
.br_banner_c .swiper-slide .br_text a{color: #EEAF50;border-color: #DFE4EA;}
.br_banner_c .swiper-slide .br_img{width: 680px;position: relative;text-align: center;transform: translateY(500px);opacity: 0;transition:all 1s ease-in-out;}
.br_banner_c .swiper-slide .br_img .br_pic{padding-bottom: 0;height: 680px;}
.br_banner_c .swiper-slide .br_img p{font-size: 16px;font-weight: bold;padding: 0 32px;}
.br_banner_c .swiper-slide.swiper-slide-active .br_text{transform: translateX(0);opacity: 1;}
.br_banner_c .swiper-slide.swiper-slide-active .br_img{transform: translateY(0);opacity: 1;}
.br_banner_c .swiper-pagination{bottom: 35px;}
.br_banner_c .swiper-pagination .swiper-pagination-bullet{width: 14px;height: 14px;border: 1px solid #F1F2F6;margin: 0 6px;background: none;opacity: 1;}
.br_banner_c .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active{background: #ffffff;border-color: #ffffff;}
.br_socials{position: absolute;left: 0;bottom: 80px;gap: 24px;z-index: 3;}
.br_socials span{font-size: 14px;color: #ffffff;}
.br_socials .br_socials_ul{position: relative;gap: 12px;}
.br_socials .br_socials_ul a{display: inline-block;padding: 4px;border-radius: 50%;border: 1px solid #DFE4EA;}
.br_socials .br_socials_ul a i{display: inline-block;width: 24px;height: 24px;}
.br_socials .br_socials_ul a:nth-child(1) i{background: url('../images/icon_share01.svg') center center no-repeat;}
.br_socials .br_socials_ul a:nth-child(2) i{background: url('../images/icon_share02.svg') center center no-repeat;}
.br_socials .br_socials_ul a:nth-child(3) i{background: url('../images/icon_share03.svg') center center no-repeat;}
.br_socials .br_socials_ul a:hover{background: #EEAF50;border-color: #8D2A23;}

.br_exhibition{width: 100%;position: relative;}
.br_exhibition_c{width: 100%;position: relative;}
.br_exhibition_c .br_model_box{width: 100%;position: relative;padding-left:28%;}
.br_exhibition_c .br_model_box .br-model{width: 100%;height:650px;position: relative;}
.br_exhibition_c .br_exhibition_tab{width: 30%;position: absolute;left: 0;bottom: 60px;}
.br_exhibition_c .br_exhibition_tab ul{width: 100%;position: relative;gap:24px;}
.br_exhibition_c .br_exhibition_tab ul li{width: 100%;position: relative;font-size:14px;color:#57606F;overflow:hidden;cursor: pointer;}
.br_exhibition_c .br_exhibition_tab ul li:before{content: '';width: 20px;height: 2px;background: #2F3542;position: absolute;left: -28px;top: 10px;transition:all 0.3s ease-in-out;}
.br_exhibition_c .br_exhibition_tab ul li.on{padding-left:28px;}
.br_exhibition_c .br_exhibition_tab ul li.on:before{left: 0;}
.br_exhibition_bg{width: 100%;position: absolute;top:0;left:0;text-align:right;transform: translateX(100%);transition:all 1s ease-in-out;}
.br_exhibition_bg .br_text{font-size: 142px;font-weight: bold;-webkit-text-stroke-width: 1px;-webkit-text-stroke-color: #2F3542;color: transparent;opacity:0.18;}
.br_exhibition_bg.on{transform: translateX(0);}

.br_video {width: 100%;position: relative;background: url(../images/bg_news.png) #F1F2F6;}
.br_video_c{width: 100%;position: relative;}
.br_video_c .swiper{width: 100%;position: relative;overflow:hidden;}
.br_video_c .swiper-slide{position:relative;background:#ffffff;padding:32px 24px;}
.br_video_c .swiper-slide .br_pic{padding-bottom: 56.25%;}
.br_video_c .swiper-slide .br_pic iframe {width: 100%;height: 100%;position: absolute;left: 0;top: 0;object-fit: cover;}
.br_video_c .swiper-slide p{font-size:20px;color:#57606F;font-weight: bold;line-height:28px;height:56px;overflow:hidden;}
.br_video .br_swiper_page{position: absolute;bottom: 0;right: 0;}
.br_video .br_swiper_page .swiper-button-next:after, .br_video .br_swiper_page .swiper-button-prev:after{display: none;}
.br_video .br_swiper_page .swiper-button-next, .br_video .br_swiper_page .swiper-button-prev{position: relative;top: 0;left: auto;right: auto;width: 52px;height: 52px;border-radius:50%;display: inline-block;}
.br_video .br_swiper_page .swiper-button-prev{background: url('../images/icon_arrow_l.svg') center center no-repeat #8D2A23;}
.br_video .br_swiper_page .swiper-button-next{background: url('../images/icon_arrow_r.svg') center center no-repeat #8D2A23;margin-left: 5px;}
.br_video .br_swiper_page .swiper-button-prev.swiper-button-disabled{background: url('../images/icon_arrow_l.svg') center center no-repeat #f6f6f6;}
 .br_video .br_swiper_page .swiper-button-next.swiper-button-disabled{background: url('../images/icon_arrow_l.svg') center center no-repeat #f6f6f6;}

.br_proclass{width: 100%;position: relative;}
.br_proclass .br_title{text-align:center;}
.br_proclass .br_title .br_btit{color:#2F3542;}
.br_proclass_c{width: 100%;position: relative;gap: 20px 20px;}
.br_proclass_c li{width: calc(50% - 10px);position: relative;}
.br_proclass_c li a{display: block;border-radius: 8px;background: #57606F;padding: 40px 24px 40px 32px;}
.br_proclass_c li .br_proclass_box{width: 100%;height: 100%;position: relative;}
.br_proclass_c li .br_text{width: calc(100% - 300px);height: 100%;position: relative;color: #ffffff;}
.br_proclass_c li .br_text .br_tit{font-size: 24px;font-weight: bold;-webkit-line-clamp: 2;}
.br_proclass_c li .br_text p{font-size: 14px;line-height: 24px;margin-top: 20px;-webkit-line-clamp: 4;}
.br_proclass_c li .br_proclass_box span{font-size: 14px;font-weight: bold;color: #ffffff;position: absolute;left: 0;bottom: 0;border-bottom: 1px solid #ffffff;}
.br_proclass_c li .br_proclass_box span i{display: inline-block;width: 20px;height: 20px;background: url('../images/icon_proclass_m.svg') center center no-repeat;margin-left: 10px;}
.br_proclass_c li .br_img{width: 240px;position: relative;}
.br_proclass_c li .br_img .br_pic{padding-bottom: 100%;}
.br_proclass_c li:hover a{background: #8D2A23;}
.br_proclass_c li:hover .br_proclass_box span i{transform: rotate(45deg);margin-left: 24px;}

.br_application{width: 100%;position: relative;}
.br_application .br_title{z-index: 2;}
.br_application .br_title .br_tit{color: #ffffff;}
.br_application .br_title .br_mtit{width: 540px;color: #ffffff;}
.br_application .swiper{width: 100%;position: relative;overflow: hidden;}
.br_application .swiper .swiper-slide{position: relative;}
.br_application .swiper .swiper-slide:before{content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: rgba(0, 0, 0, 0.4);z-index: 1;}
.br_application .swiper .swiper-slide .br_pic{padding-bottom:41.66%;}
.br_application .swiper .swiper-slide .br_text{width: 100%;position: absolute;top: 120px;left: 0;z-index: 1;}
.br_application .swiper .swiper-slide .br_text p{width: 540px;font-size: 16px;color: #ffffff;line-height: 32px;transform: translateY(300px);opacity: 0;}
.br_application .swiper .swiper-slide.swiper-slide-active .br_text p{transform: translateY(0);opacity: 1;}
.br_application .br_swiper_page{width: 100%;position: absolute;bottom: 120px;left: 0;}
.br_application .br_swiper_page .swiper-button-next:after, .br_application .br_swiper_page .swiper-button-prev:after{display: none;}
.br_application .br_swiper_page .swiper-button-next, .br_application .br_swiper_page .swiper-button-prev{position: relative;top: 0;left: auto;right: auto;width: 48px;height: 48px;display: inline-block;}
.br_application .br_swiper_page .swiper-button-prev{background: url('../images/icon_app_left.svg') center center no-repeat;}
.br_application .br_swiper_page .swiper-button-next{background: url('../images/icon_app_right.svg') center center no-repeat;margin-left: 5px;}

.br_about{width: 100%;position: relative;}
.br_about_c{width: 100%;position: relative;text-align: center;}
.br_about_c .br_about_mask{width: 100%;position: relative;text-align: center;}
.br_about_c .br_about_mask img{height: 300px;position: relative;}
.br_about_c .br_text{width: 1028px;text-align: center;margin-left: auto;margin-right: auto;}
.br_about_c .br_text p{font-size: 24px;color: #2F3542;line-height: 48px;}
.br_about_c .br_text a{margin-top: 72px;}
.br_about_c .br_text a:hover{color: #ffffff;background: #8D2A23;border-color: #8D2A23;}
.br_about_b{width: 90%;position: relative;margin: 150px auto 0 auto;overflow: hidden;background: #ffffff;}
.br_about_b .swiper-slide{position: relative;}
.br_about_b .swiper-slide .br_pic{padding-bottom: 180px;}
.br_about_b .swiper-slide .br_pic img{object-fit: contain;filter: grayscale(100%);}
.br_about_b .swiper-slide:hover .br_pic img{filter: grayscale(0);}

.br_technology{width: 100%;padding: 100px 0 68px 0;position: relative;background: url('../images/bg_technology.webp') center center no-repeat;}
.br_technology:before{content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: rgba(0, 0, 0, 0.6);}
.br_technology_c{width: 57%;position: relative;}
.br_technology_c .br_title .br_tit{color: #ffffff;}
.br_technology_c .br_title .br_mtit{color: #ffffff;}
.br_technology_r{width: 39%;height: 100%;position: absolute;right: 0;top: 0;background: #2F3542;}
.br_technology_r .swiper{width: 100%;position: relative;}
.br_technology_r .swiper .swiper-wrapper{left: -60px;}
.br_technology_r .swiper .swiper-slide{position: relative;padding:30px 0;background:#FFF;}
.br_technology_r .swiper .swiper-slide .br_pic{padding-bottom: 100%;}
.br_technology_r .swiper .swiper-slide .br_pic img{object-fit: contain;}

.br_why{width: 100%;position: relative;height: 100vh;}
.br_why_c{width: 100%;position: relative;overflow: hidden;}
.br_why_l{width: calc(100% - 524px);padding-right: 32px;position:relative;}
.br_why_l a{line-height: 64px;padding: 0 48px;}
.br_why_r{width: 524px;position: relative;}

.br_why_r ul{width: 100%;position: relative;gap: 80px;}
.br_why_r li{width: 100%;color: #ffffff;position: relative;}
.br_why_r li .br_pic{padding-bottom: 116.5%;}
.br_why_r li .br_pic:before {content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: rgba(0, 0, 0, 0.2);z-index: 1;}
.br_why_r li .br_text_t{position: absolute;left: 32px;top: 32px;}
.br_why_r li .br_text_t .br_date{width: 100%;position: relative;gap: 12px;font-size: 14px;font-weight: bold;z-index: 1;}
.br_why_r li .br_text_t .br_date span{font-weight: bold;}
.br_why_r li .br_text_t .br_date span:nth-child(1){font-size: 40px;line-height: 1;}
.br_why_r li .br_text_t .br_tit{position: relative;font-size: 14px;font-weight: bold;margin-top: 10px;z-index: 1;}
.br_why_r li p{width: calc(100% - 64px);position: absolute;left: 32px;bottom: 32px;font-size: 16px;line-height: 32px;z-index: 1;}


.br_process{width: 100%;position: relative;overflow: hidden;}
.br_process .br_title{text-align: center;}
.br_process_c{width: 100%;position: relative;overflow: hidden;padding-bottom: 150px;}
.br_process_c .swiper-slide{position: relative;border-radius: 16px;box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.04), 0px 4px 8px 0px rgba(0, 0, 0, 0.06);background: #f2f2f2;margin-top: -150px;}
.br_process_c .swiper-slide .br_pic{padding-bottom: 133.33%;}
.br_process_c .swiper-slide .br_pic img{object-fit: contain;}
.br_process_c .swiper-slide p{width: 100%;padding: 32px 24px;position: absolute;bottom: 0;left: 0;font-size: 16px;color: #57606F;font-weight: bold;text-align: center;}
.br_process_c .swiper-slide.swiper-slide-active{background: #8D2A23;margin-top:30px;}
.br_process_c .swiper-slide.swiper-slide-active p{color: #ffffff;}
.br_process_c .swiper-button-next:after, .br_process_c .swiper-button-prev:after{display: none;}
.br_process_c .swiper-button-next, .br_process_c .swiper-button-prev{width: 48px;height: 48px;margin-top: -80px;}
.br_process_c .swiper-button-prev{background: url('../images/icon_process_left.svg') center center no-repeat;left: 500px;}
.br_process_c .swiper-button-next{background: url('../images/icon_process_right.svg') center center no-repeat;right: 500px;}


@media screen and (max-width:1699px){
    .br_banner_c{height: 720px;}
    .br_banner_c .swiper-slide .br_img{width: 585px;}
    .br_banner_c .swiper-slide .br_img .br_pic{height: 585px;}
    .br_banner_c .swiper-slide .br_text{width: calc(100% - 585px);margin-top: 30px;}
    .br_banner_c .swiper-slide .br_text .br_tit{font-size: 42px;}

    .br_proclass_c li .br_img{width: 220px;}
    .br_proclass_c li .br_text{width: calc(100% - 260px);}
    .br_proclass_c li .br_text .br_tit{font-size: 22px;}
    .br_proclass_c li .br_text p{margin-top: 15px;}

    .br_application .swiper .swiper-slide.swiper-slide-active .br_text{top: 100px;}
    .br_application .swiper .swiper-slide .br_text p{width:660px;}
    .br_application .br_swiper_page{bottom: 100px;}

    .br_about_b{margin: 120px auto 0 auto;}
    .br_about_b .swiper-slide .br_pic{padding-bottom: 164px;}
    
    .br_why_l{width: calc(100% - 485px);}
    .br_why_l a{line-height: 58px;}
    .br_why_r{width: 485px;}
    .br_why_r ul{gap: 60px;}

    .br_process_c .swiper-slide p{padding: 24px 20px;}
    .br_process_c .swiper-button-prev{left: 460px;}
    .br_process_c .swiper-button-next{right: 460px;}

}

@media screen and (max-width:1499px){
    .br_banner_c{height: 660px;}
    .br_banner_c .swiper-slide .br_img{width: 554px;}
    .br_banner_c .swiper-slide .br_img .br_pic{height: 554px;}
    .br_banner_c .swiper-slide .br_text{width: calc(100% - 554px);margin-top: 30px;}
    .br_banner_c .swiper-slide .br_text .br_tit{font-size: 40px;}
    .br_socials{bottom: 60px;}
    
    .br_proclass_c li a{padding: 32px 20px 32px 24px;}
    .br_proclass_c li .br_img{width: 200px;}
    .br_proclass_c li .br_text{width: calc(100% - 230px);}
    .br_proclass_c li .br_text .br_tit{font-size: 20px;}
    .br_proclass_c li .br_text p{margin-top: 12px;line-height: 22px;}

    .br_application .swiper .swiper-slide.swiper-slide-active .br_text{top: 60px;}
    .br_application .br_swiper_page{bottom: 60px;}

    .br_about_c .br_text{width: 920px;}
    .br_about_c .br_text p {font-size: 22px;line-height: 42px;}
    .br_about_c .br_text a {margin-top: 52px;}
    .br_about_b{margin: 100px auto 0 auto;}
    .br_about_b .swiper-slide .br_pic{padding-bottom: 146px;}
    
    .br_why_l{width: calc(100% - 450px);}
    .br_why_l a{line-height: 52px;}
    .br_why_r{width: 450px;}
    .br_why_r ul{gap: 40px;}
    .br_why_r li .br_text_t{left: 24px;top: 24px;}
    .br_why_r li .br_text_t .br_date{gap: 8px;}
    .br_why_r li .br_text_t .br_date span:nth-child(1){font-size: 30px;}
    .br_why_r li p {width: calc(100% - 48px);left: 24px;bottom: 24px;line-height: 28px;}

    .br_process_c .swiper-slide p{padding: 20px 16px;}
    .br_process_c .swiper-button-prev{left: 416px;}
    .br_process_c .swiper-button-next{right: 416px;}

    
}

@media screen and (max-width:1299px){
	.br_banner_c{height: 600px;}
    .br_banner_c .swiper-slide .br_img{width: 500px;}
    .br_banner_c .swiper-slide .br_img .br_pic{height: 500px;}
    .br_banner_c .swiper-slide .br_text{width: calc(100% - 500px);}
    .br_socials{bottom: 50px;}
    
    .br_about_c .br_text{width: 820px;}
	.br_about_b {margin: 80px auto 0 auto;}

	.br_application .swiper .swiper-slide.swiper-slide-active .br_text {top: 50px;}
	.br_application .swiper .swiper-slide .br_text p{line-height: 28px;}
    .br_application .br_swiper_page {bottom: 50px;}

    .br_process_c .swiper-button-prev{left: 378px;}
    .br_process_c .swiper-button-next{right: 378px;}
}

@media screen and (max-width:1023px){
	.br_banner{padding-top: 0;margin-top: 60px;}
	.br_banner_c{height: 480px;}
    .br_banner_c .swiper-slide .br_img{width: 380px;}
    .br_banner_c .swiper-slide .br_img .br_pic{height: 380px;}
    .br_banner_c .swiper-slide .br_img p{font-size: 14px;padding: 0;}
    .br_banner_c .swiper-slide .br_text{width: calc(100% - 380px);margin-top: 30px;}
    .br_banner_c .swiper-slide .br_text .br_tit {font-size: 24px;}
    .br_socials{gap: 16px;}

    .br_proclass_c{gap: 12px;}
    .br_proclass_c li{width: 100%;}
    .br_proclass_c li a {padding: 20px 20px 24px 24px;}
     
    .br_application .swiper .swiper-slide.swiper-slide-active .br_text {top: 30px;}
    .br_application .br_title .br_mtit{width: 100%;}
    .br_application .br_title .br_mtit br{display: none;}
    .br_application .swiper .swiper-slide .br_text p{width: 85%;font-size: 14px;line-height: 24px;}
    .br_application .br_swiper_page {bottom: 30px;}
    
    .br_about_c .br_about_mask img{height: 64px;}
    .br_about_c .br_text{width: 740px;}
    .br_about_c .br_text p {font-size: 16px;line-height: 28px;}
    .br_about_c .br_text a {margin-top: 24px;}
	.br_about_b {margin: 36px auto 0 auto;}
	.br_about_b .swiper-slide .br_pic{padding-bottom: 126px;}

	.br_technology{padding: 32px 0 32px 0;}
	.br_technology_c a{margin-top: 20px;}
    
	.br_why{height: auto;}
	.br_why_l {width: 100%;margin-bottom: 20px;}
	.br_why_l a{display: none;}
	.br_why_r {width: 100%;}
	.br_why_r ul {gap: 12px;}
	.br_why_r li{width: calc(50% - 6px);}
	.br_why_r li .br_text_t {left: 16px;top: 16px;}
	.br_why_r li .br_text_t .br_date span:nth-child(1) {font-size: 24px;}
	.br_why_r li .br_text_t .br_tit{font-size: 12px;margin-top: 8px;}
	.br_why_r li p{font-size: 14px;line-height: 22px;width: calc(100% - 32px);left: 16px;bottom: 16px;}
    
    .br_process_c{padding-bottom: 30px;margin-top: 16px;}
    .br_process_c .swiper-slide{margin-top: 0;border-radius: 8px;}
    .br_process_c .swiper-slide.swiper-slide-active{margin-top: 0;}
    .br_process_c .swiper-slide p {padding: 16px 16px;font-size: 14px;}
    .br_process_c .swiper-button-next, .br_process_c .swiper-button-prev{display: none;}


}

@media screen and (max-width:767px){
    
	.br_banner_c {height: 248px;}
	.br_banner_c .swiper-slide .br_img{display: none;}
	.br_banner_c .swiper-slide .br_text {width: 100%;margin-top: 30px;}
	.br_banner_c .swiper-slide .br_text .br_mtit {font-size: 12px;}
	.br_banner_c .swiper-slide .br_text .br_tit {font-size: 20px;}
	.br_banner_c .swiper-pagination {bottom: 10px;}
	.br_socials {display: none;}

	.br_proclass_c {gap: 10px;}
	.br_proclass_c li a {padding: 12px 12px 16px 16px;border-radius: 4px;}
	.br_proclass_c li .br_text {width: calc(100% - 165px);}
	.br_proclass_c li .br_text .br_tit {font-size: 16px;}
	.br_proclass_c li .br_text p{margin-top: 10px;}
	.br_proclass_c li .br_img {width: 150px;padding: 5px 0;}

    .br_application .swiper .swiper-slide .br_pic{padding-bottom: 350px;}
    .br_application .swiper .swiper-slide.swiper-slide-active .br_text {top: 20px;}
    .br_application .swiper .swiper-slide .br_text p{width: 100%;line-height: 20px;}
    .br_application .br_swiper_page {bottom: 15px;}
    .br_application .br_swiper_page .swiper-button-next, .br_application .br_swiper_page .swiper-button-prev{width: 38px;height: 38px;background-size: 100% 100% !important;}
    
	.br_about_c .br_about_mask img {height: 42px;}
	.br_about_c .br_text{width: 100%;position: relative;padding: 0 15px;}
	.br_about_c .br_text p {font-size: 14px;line-height: 22px;}
	.br_about_c .br_text a {margin-top: 16px;}
	.br_about_b {margin: 36px auto 0 auto;}
	.br_about_b .swiper-slide .br_pic {padding-bottom: 60px;}
    
	.br_technology {padding: 20px 0 20px 0;background-size: 100% 100% !important;}
	.br_technology_c{width: 100%;}
	.br_technology_c a {margin-top: 12px;}
	.br_technology_r {width: 100%;padding: 0 15px;position: relative;background: none;margin-top: 16px;}
	.br_technology_r .swiper .swiper-wrapper{left: 0;}
    
    .br_why_l{margin-bottom: 16px;}
	.br_why_r ul{gap: 8px;}
	.br_why_r li{width: 100%;}

	.br_process_c{padding-bottom: 20px;}




}