.selead_banner{width: 100%;height: 100%;position: relative;overflow: hidden;}
.selead_banner .swiper-slide{position: relative;}
.selead_banner .swiper-slide:before{content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: rgba(0, 0, 0, .5);z-index: 1;}
.selead_banner .swiper-slide img{width: 100%;height: auto;max-height: 100vh;transition:1s linear 2s;transform:scale(1,1);}
.selead_banner .swiper-slide.swiper-slide-active img{transition:5s linear;transform:scale(1.1,1.1);}   
.selead_banner .swiper-slide .selead_text{width: 100%;position: absolute;left: 50%;top: 52%;text-align: center;color: #ffffff;z-index: 2;}
.selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 60px;font-weight: 700;}
.selead_banner .swiper-slide .selead_text p:nth-child(2){padding-bottom: 40px;position: relative;display: inline-block;}

.selead_banner .swiper-slide .selead_text p:nth-child(2) i{position: absolute;left: 20px;bottom: 0;stroke-dasharray: 500;stroke-dashoffset: 500;transition: stroke-dashoffset 2s;}
.selead_banner .swiper-slide .selead_text span{color: #EE8206;font-weight: 700;}
.selead_banner .swiper-slide .selead_text p:nth-child(3){font-size: 20px;font-weight: 400;}
.selead_banner .swiper-slide .selead_text .selead_more{margin-top: 120px;}
.selead_banner .swiper-slide.swiper-slide-active .selead_text p:nth-child(2) i{stroke-dashoffset: 0;}
.selead_banner .swiper-pagination{bottom: 30px;}
.selead_banner .swiper-pagination .swiper-pagination-bullet{margin: 0 6px;width: 12px;height: 12px;background: #ffffff;opacity: 1;}
.selead_banner .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active{background: #EE8206;}

.selead_pro{width: 100%;position: relative;padding: 120px 0 90px 0;}
.selead_pro_c{width: 100%;position: relative;margin-top: 90px;}
.selead_pro .selead_more{text-align: center;margin-top: 30px;}
.selead_pro .selead_mbut{padding: 16px 42px;}
.selead_pro .selead_more .selead_mbut:nth-child(1){margin-right: 24px;background: #878787;}
.selead_pro .selead_more .selead_mbut:nth-child(1):hover{background: #EE8206;}

.selead_liucheng{width: 100%;position: relative;padding-bottom: 100px;}
.selead_liucheng ul{width: 100%;position: relative;overflow: hidden;display: flex;justify-content: space-between;}
.selead_liucheng ul li{position: relative;width: 100px;text-align: center;}
.selead_liucheng ul li:after{content: '';width: 32px;height: 32px;display: inline-block;position: absolute;top: 34px;right: -60px;background: url('../images/icon_liucheng_jt.svg') center center no-repeat;}
.selead_liucheng ul li:last-child:after{display: none;}
.selead_liucheng ul li .selead_icon{display: inline-block;width: 100px;height: 100px;border-radius: 50%;border-radius: 90px;border: 2px solid #CED4DA;}
.selead_liucheng ul li:nth-child(1) .selead_icon{background: url('../images/icon_liucheng1.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(2) .selead_icon{background: url('../images/icon_liucheng2.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(3) .selead_icon{background: url('../images/icon_liucheng3.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(4) .selead_icon{background: url('../images/icon_liucheng4.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(5) .selead_icon{background: url('../images/icon_liucheng5.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(6) .selead_icon{background: url('../images/icon_liucheng6.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(7) .selead_icon{background: url('../images/icon_liucheng7.svg') center center no-repeat;}
.selead_liucheng ul li:nth-child(8) .selead_icon{background: url('../images/icon_liucheng8.svg') center center no-repeat;}
.selead_liucheng ul li p{display: block;font-size: 14px;color: #000;margin-top: 12px;}
.selead_liucheng ul li:hover .selead_icon{border-color: #EE8206;}
.selead_liucheng ul li:nth-child(1):hover .selead_icon{background: url('../images/icon_liucheng1_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(2):hover .selead_icon{background: url('../images/icon_liucheng2_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(3):hover .selead_icon{background: url('../images/icon_liucheng3_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(4):hover .selead_icon{background: url('../images/icon_liucheng4_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(5):hover .selead_icon{background: url('../images/icon_liucheng5_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(6):hover .selead_icon{background: url('../images/icon_liucheng6_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(7):hover .selead_icon{background: url('../images/icon_liucheng7_h.svg') center center no-repeat #EE8206;}
.selead_liucheng ul li:nth-child(8):hover .selead_icon{background: url('../images/icon_liucheng8_h.svg') center center no-repeat #EE8206;}

.selead_process{width: 100%;position: relative;padding: 0 0 90px 0;background: #F8F9FA;}
.selead_process .selead_mtit{font-size: 24px;color: #121820;line-height: 54px;}
.selead_process_c{width: 100%;position: relative;margin-top: 30px;}
.selead_process_c ul{width: 100%;position: relative;display: flex;justify-content: space-between;}
.selead_process_c li{position: relative;padding: 20px 12px 0 12px;border-radius: 12px;border: 2px solid #CED4DA;text-align: center;width: 126px;z-index: 1;text-align: center;}
.selead_process_c li:after{content: '';width: 32px;height: 100%;display: inline-block;position: absolute;right: -46px;top: 0;background: url('../images/process_iconr.svg') right center no-repeat;}
.selead_process_c li:last-child:after{display: none;}
.selead_process_c li i{display: inline-block;position: relative;width: 52px;height: 52px;}
.selead_process_c li:nth-child(1) i{background: url('../images/process_icon1.svg') center center no-repeat;}
.selead_process_c li:nth-child(2) i{background: url('../images/process_icon3.svg') center center no-repeat;}
.selead_process_c li:nth-child(3) i{background: url('../images/process_icon4.svg') center center no-repeat;}
.selead_process_c li:nth-child(4) i{background: url('../images/process_icon5.svg') center center no-repeat;}
.selead_process_c li:nth-child(5) i{background: url('../images/process_icon6.svg') center center no-repeat;}
.selead_process_c li:nth-child(6) i{background: url('../images/process_icon7.svg') center center no-repeat;}
.selead_process_c li:nth-child(7) i{background: url('../images/process_icon2.svg') center center no-repeat;}
.selead_process_c li:nth-child(8) i{background: url('../images/process_icon8.svg') center center no-repeat;}
.selead_process_c li i:before{content: '';width: 20px;height: 20px;border-radius: 100%;background: #EE8206;position: absolute;right: 0;bottom: 0;z-index: -1;}
.selead_process_c li .selead_tit{font-size: 16px;color: #121820;font-weight: 400;line-height: 30px;margin: 20px 0 12px 0;text-align: left;}
.selead_process_c li p{font-size: 14px;color: #42454b;font-weight: 400;line-height: 24px;text-align: left;text-align: center;margin-top: 10px;}
.selead_process_c li:hover{border: 2px solid #EE8206;background: #ffffff;box-shadow: 0px 0px 4px 0px rgba(238, 130, 6, 0.04), 8px 8px 16px 0px rgba(238, 130, 6, 0.16);}
.selead_process_c li:hover:after{background: url('../images/process_iconr_h.svg') right center no-repeat;}
.selead_process_c li:hover i{transform: rotateY(360deg);}
.selead_process_c .selead_more{width: 100%;position: relative;margin-top: 60px;text-align: center;}
.selead_process_c .selead_more a{padding: 12px 42px;}

.selead_process_b{width: 100%;position: relative;left: 0;bottom: -135px;background: url('../images/bg_process.webp') center center no-repeat;z-index: 1;}
.selead_process_b .selead_text{margin: 120px 0 120px 0;display: inline-block;margin-left: 150px;}
.selead_process_b .selead_text p{font-size: 40px;color: #ffffff;font-weight: 400;line-height: 54px;}
.selead_process_b .selead_text p:nth-child(3){font-weight: 700;}
.selead_process_b img{position: absolute;right: 180px;top: -90px;}

.selead_about{width: 100%;position: relative;padding: 120px 0 0 0;overflow: hidden;}
.selead_about:before{content: '';width: 100%;height: 1222px;position: absolute;left: 0;top: 0;background: linear-gradient(to bottom, rgba(255,255,255,0) 60%, rgba(255, 255, 255, 1) 100%), url('../images/bg_about.png') 30px top no-repeat;transition:all 20s ease-in-out;}
.selead_about.on:before{top: -80%;}
.selead_about_l{width: 41%;height: 100%;position: absolute;left: 0;top: 0;}
.selead_about_l .selead_img1{width: 473px;height: 624px;position: absolute;right: 0;top: 0;overflow: hidden;}
.selead_about_l .selead_img1 img{transform: translate(0px, -70px);}
.selead_about_l .selead_img2{width: 397px;height: 388px;position: absolute;left: 0;bottom: 0;overflow: hidden;}
.selead_about_l img{width: 100%;position: relative;top:0;transition:all 0.3s ease-in-out;}
.selead_about_l:hover .selead_img1 img{transform: translate(15px, -70px);}
.selead_about_l:hover .selead_img2 img{transform: scale(1.1);}
.selead_about_r{display: inline-block;width: 49%;float: right;position: relative;padding: 60px 0 60px 0;}
.selead_about_r .selead_title p{color: #EE8206;}
.selead_about_r .selead_about_info{width: 100%;position: relative;margin: 40px 0 85px 0;}
.selead_about_r .selead_about_info p{font-size: 14px;color: #42454b;line-height: 28px;}
.selead_about_r .selead_about_num{display: flex;justify-content: space-between;}
.selead_about_r .selead_about_num li{position: relative;}
.selead_about_r .selead_about_num li p{font-size: 13px;color: #121820;font-weight: 400;margin-bottom: 12px;}
.selead_about_r .selead_about_num li .selead_tit{font-size: 16px;color: #EE8206;font-weight: 400;}
.selead_about_r .selead_about_num li .selead_tit span{font-size: 40px;font-weight: 700;display: inline-block;margin-right: 8px;}
.selead_about_r .selead_more{margin-top: 50px;}

.selead_choose{width: 100%;position: relative;padding: 225px 0 30px 0;background: #F8F9FA;}
.selead_choose .selead_title .selead_tit{font-weight: bold;}
.selead_choose_c{width: 100%;position: relative;display: flex;align-items: flex-start;align-content: flex-start;gap: 32px;flex-wrap: wrap;margin-top: 65px;}
.selead_choose_c li{width: calc(50% - 16px);position: relative;padding: 36px 32px 36px 32px;border: 2px solid #CED4DA;color: #ffffff;border-radius: 16px;overflow: hidden;}
.selead_choose_c li:nth-child(1){background: url('../images/choose_bg1.webp') center center no-repeat;}
.selead_choose_c li:nth-child(2){background: url('../images/choose_bg2.webp') center center no-repeat;}
.selead_choose_c li:nth-child(3){background: url('../images/choose_bg3.webp') center center no-repeat;}
.selead_choose_c li:nth-child(4){background: url('../images/choose_bg4.webp') center center no-repeat;}
.selead_choose_c li:before{content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: rgba(0, 0, 0, .45);}
.selead_choose_c li i{position: relative;display: inline-block;width: 64px;height: 64px;z-index: 1;}
.selead_choose_c li:nth-child(1) i{background: url('../images/choose_icon1.svg') center center no-repeat;}
.selead_choose_c li:nth-child(2) i{background: url('../images/choose_icon2.svg') center center no-repeat;}
.selead_choose_c li:nth-child(3) i{background: url('../images/choose_icon3.svg') center center no-repeat;}
.selead_choose_c li:nth-child(4) i{background: url('../images/choose_icon4.svg') center center no-repeat;}
.selead_choose_c li .selead_tit{font-size: 24px;font-weight: 700;line-height: 30px;margin: 32px 0 32px 0;position: relative;z-index: 1;}
.selead_choose_c li p{font-size: 14px;font-weight: 400;line-height: 30px;height: 90px;position: relative;z-index: 1;opacity: .8;}
.selead_choose_c li:hover{box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.08), 8px 8px 16px 0px rgba(0, 0, 0, 0.16);}
.selead_choose_c li:hover i{animation: hvr-wobble-horizontal 1s ease-in-out;}


.selead_specialty{width: 100%;position: relative;padding: 120px 0 0 0;background: url(../images/bg_specialty.jpg) center center no-repeat;background-size: 100% 100%;}
.selead_specialty:before{content: '';width: 100%;height: 100%;position: absolute;left: 0;top: 0;background: url(../images/bg_specialty2.png) center bottom no-repeat;}
.selead_specialty .selead_title{text-align: center;}
.selead_specialty .selead_title p{color: #EE8206;background: none;padding-left: 0;}
.selead_specialty_c{width: 66%;margin: 88px auto 0 auto;padding-bottom: 100px;background: url('../images/bg_specialty1.png') center bottom no-repeat;z-index: 1;}
.selead_specialty_c .swiper{width: 100%;height: 100%;overflow: hidden;}
.selead_specialty_c .swiper-slide{position: relative;}
.selead_specialty_c .swiper-slide .selead_pic{width: 50%;margin-left: 25%;padding-bottom: 58%;}
.selead_specialty_c .swiper-slide .selead_text{position: absolute;width: 100%;height: 100%;left: 0;top: 0;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li{position: absolute;text-align: center;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian1{left: 19%;top: 10%;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian2{left: 52%;top: 5%;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian3{top: 53%;left: 24%;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li i{display: inline-block;margin-top: 12px;width: 36px;height: 36px;border-radius: 100%;background: url('../images/specialty_icon.svg') center center no-repeat;cursor: pointer;position: relative;z-index: 1;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li i:before{content: '';width: 100%;height: 100%;border-radius: 100%;background: #EE820650;position: absolute;left: 0;top: 0;animation: scale 2s infinite;transform: scale(.8);}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms{width: 308px;padding: 32px 20px 32px 20px;background: #ffffff;position: relative;text-align: left;border-radius: 12px;opacity: 0;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms:before{content: '';display: inline-block;width: 20px;height: 10px;background: url('../images/specialty_icon1.svg') center center no-repeat;position: absolute;bottom: -10px;left: calc(50% - 10px);}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms .selead_tit{font-size: 18px;color: #EE8206;font-weight: 700;margin-bottom: 24px;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms p{font-size: 14px;color: #121820;font-weight: 400;line-height: 24px;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li.on .selead_text_ms{opacity: 1;}
.selead_specialty_c .swiper-slide .selead_text .selead_text_li.on i:before{animation: unset;}
.selead_specialty .swiper-button-prev, .selead_specialty .swiper-button-next{display: none;}
.selead_specialty:hover .swiper-button-prev, .selead_specialty:hover .swiper-button-next{display: block;}

.selead_video{width: 100%;position: relative;padding: 100px 0 100px 0;background: url(../images/bg_specialty.webp) center center no-repeat;background-size: 100% 100%;}
.selead_video .selead_title{text-align: center;}
.selead_video .selead_title p{color: #EE8206;background: none;padding-left: 0;}
.selead_video_c{width: 66%;margin: 60px auto 0 auto;padding-bottom:37.125%;position: relative;}
.selead_video_c iframe {display: block;width: 100%;height: 100%;position: absolute;left: 0;top: 0;object-fit: cover;}
.selead_video_c iframe .ytp-chrome-top{display:none !important;}

.selead_news{width: 100%;position: relative;padding: 120px 0 120px 0;}
.selead_news_c{width: 100%;position: relative;margin-top: 90px;font-size: 0;}
.selead_news_c .selead_tit{font-size: 28px;font-weight: bold;color: #12182010;}
.selead_news_c .selead_tit1{color: #ffffff;position: absolute;left: 20px;top: 20px;z-index: 2;}
.selead_news_c a{display: block;}
.selead_news_c .selead_time{font-size: 14px;color: #42454B;}
.selead_news_c .selead_time span{font-size: 20px;color: #EE8206;font-weight: bold;margin-right: 3px;display: inline-block;}
.selead_news_c p{font-size: 16px;color: #42454B;}
.selead_news_c .selead_more{display: inline-block;position: relative;}
.selead_news_c .selead_more a{display: block;line-height: 34px;padding: 0 12px;border-radius: 28px;border: 1px solid #EE8206;font-size: 14px;color: #EE8206;}
.selead_news_c .selead_more a:hover{border-color: #EE8206;background: #EE8206;color: #ffffff;}
.selead_news_c .swiper{position: relative;width: 100%;height: 100%;overflow: hidden;}
.selead_news_c .swiper-slide{position: relative;}
.selead_news_c .swiper-slide .selead_pic{padding-bottom: 544px;}
.selead_news_c .swiper-pagination{text-align: right;padding-right: 20px;bottom: 20px;}

.selead_news_xw{position: relative;display: inline-block;width: 24%;padding: 20px 24px;background: #F8F9FA;height: 544px;vertical-align: bottom;}
.selead_news_xw ul{width: 100%;position: relative;margin: 20px 0;}
.selead_news_xw ul li{padding: 16px 0px 20px 0px;border-bottom: 1px solid #CED4DA;}
.selead_news_xw ul li:last-child{border-bottom: 0;}
.selead_news_xw ul li p{overflow: hidden;display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2;align-self: stretch;margin-top: 12px;}
.selead_news_xw ul li:hover p{color: #EE8206}
.selead_news_zh{position: relative;display: inline-block;width: calc(52% - 40px);margin: 0 20px;vertical-align: bottom;}
.selead_news_zh .swiper-slide .selead_text{width: 100%;padding: 20px;position: absolute;left: 0;bottom: 0;background: rgba(0, 0, 0, 0.20);}
.selead_news_zh .swiper-slide .selead_text p{color: #ffffff;overflow: hidden;display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 1;align-self: stretch;padding: 0 0 12px 0;}
.selead_news_zh .swiper-slide .selead_text .selead_time{color: #ffffff;}
.selead_news_zh .swiper-pagination .swiper-pagination-bullet{width: 12px;height: 12px;background: #CED4DA;margin-left: 12px;}
.selead_news_zh .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active{background: #EE8206;}

.selead_news_case{display: inline-block;width: 24%;position: relative;vertical-align: bottom;}
.selead_news_case .swiper-slide .selead_more{position: absolute;left: 20px;bottom: 20px;z-index: 1;}
.selead_news_case .swiper-slide .selead_more a{border: 1px solid #ffffff;color: #ffffff;}
.selead_news_case .swiper-pagination{font-size: 14px;color: #ffffff;line-height: 34px;width: 30%;right: 0;left: auto;}
.selead_news_case .swiper-pagination .swiper-pagination-current{font-weight: bold;margin-right: 2px;}
.selead_news_case .swiper-pagination .swiper-pagination-total{font-size: 12px;font-weight: 400;margin-left: 2px;}



@media screen and (max-width:1680px){
    .selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 52px;}
    .selead_banner .swiper-slide .selead_text p:nth-child(3){font-size: 18px;}
    .selead_banner .swiper-slide .selead_text .selead_more{margin-top: 100px;}

    .selead_pro{padding: 80px 0 70px 0;}
    .selead_pro_c{margin-top: 50px;}
    .selead_pro .selead_more{margin-top: 24px;}
    .selead_pro .selead_mbut {padding: 14px 42px;}

    .selead_liucheng{padding-bottom: 80px;}
    .selead_liucheng ul li:after{right: -52px;}

    .selead_specialty{padding: 80px 0 0 0;}
    .selead_specialty:before{background-size: 90% auto;}
    .selead_specialty_c{margin: 60px auto 0 auto;background-size: 100% auto;padding-bottom: 92px;}
    .selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms{padding: 24px 16px 24px 16px;}
    .selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms .selead_tit{margin-bottom: 12px;}

    .selead_about{width: 100%;}
    .selead_about_l .selead_img1{width: 420px;height: 580px;}
    .selead_about_l .selead_img2{width: 360px;height: 350px;}
    .selead_about_r .selead_about_info{margin: 30px 0 60px 0;}
    .selead_about_r .selead_about_num li .selead_tit{font-size: 15px;}
    .selead_about_r .selead_about_num li .selead_tit span{font-size: 34px;}

    .selead_process_b{background-size: 1300px 380px;bottom: -120px;}
    .selead_process_b .selead_text{margin: 100px 0 100px 150px;}
    .selead_process_b .selead_text p{font-size: 34px;line-height: 48px;}
    .selead_process_b img {right: 170px;top: -70px;width: 400px;}
    .selead_process_c li:after{right: -40px;}

    .selead_choose{padding: 200px 0 30px 0;}
    .selead_choose_c{gap: 24px;margin-top: 45px;}
    .selead_choose_c li{width: calc(50% - 12px);padding: 30px 24px 30px 24px;}
    .selead_choose_c li .selead_tit{margin: 24px 0 24px 0;}
    .selead_choose_c li p{line-height: 26px;height: 78px;}

    .selead_process{padding: 0 0 70px 0;}
    .selead_process_c .selead_more{margin-top: 45px;}

    .selead_news{padding: 90px 0 90px 0;}
    .selead_news_c{margin-top: 55px;}
    .selead_news_c .selead_tit{font-size: 24px;}
    .selead_news_xw{height: 485px;}
    .selead_news_xw ul{margin: 15px 0;}
    .selead_news_xw ul li{padding: 12px 0px 15px 0px;}
    .selead_news_xw ul li p{margin-top: 10px;}
    .selead_news_c .swiper-slide .selead_pic {padding-bottom: 485px;}
    .selead_news_zh .swiper-slide .selead_text p{padding: 0 0 8px 0;}
    .selead_news_zh .swiper-pagination .swiper-pagination-bullet{margin-left: 6px;}


}

@media screen and (max-width:1499px){
    .selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 45px;}
    .selead_banner .swiper-slide .selead_text p:nth-child(2){padding-bottom: 35px;}
    .selead_banner .swiper-slide.swiper-slide-active .selead_text p:nth-child(2) i svg{width: 200px;height: auto;}
    .selead_banner .swiper-slide .selead_text p:nth-child(3){font-size: 17px;}
    .selead_banner .swiper-slide .selead_text .selead_more{margin-top: 70px;}

    .selead_pro .selead_mbut {padding: 12px 42px;}

    .selead_liucheng ul li:after {right: -45px;}

    .selead_process_c li{width: 115px;}

    .selead_news_c .selead_tit {font-size: 22px;}
    
    .selead_process .selead_mtit{font-size: 22px;line-height: 40px;}
    .selead_process_c{margin-top: 20px;}
    .selead_process_b {background-size: 1200px 360px;}

    .selead_choose_c li .selead_tit {margin: 20px 0 20px 0;}
    .selead_choose_c li p {line-height: 22px;height: 66px;}

    .selead_news {padding: 70px 0 70px 0;}
    
    .selead_about{padding: 80px 0 0 0;}
    .selead_about_l .selead_img1 {width: 380px;height: 540px;}
    .selead_about_l .selead_img2 {width: 320px;height: 320px;}


}

@media screen and (max-width:1299px){
	.selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 32px;}
	.selead_banner .swiper-slide .selead_text p:nth-child(3) {font-size: 16px;}
    .selead_banner .swiper-slide .selead_text .selead_more {margin-top: 42px;}
    
    .selead_liucheng ul li:after {right: -30px;}
    .selead_liucheng ul li .selead_icon{width: 85px;height: 85px;}
    .selead_liucheng ul li p{margin-top: 6px;}

    .selead_process_b {background-size: 994px 300px;}
    .selead_process_b .selead_text {margin: 60px 0 60px 112px;}
    .selead_process_b .selead_text p {font-size: 28px;line-height: 42px;}
    .selead_process_b img {right: 115px;top: -64px;width: 300px;}

    .selead_process_c li {width: 90px;padding: 10px 5px 5px 5px;}
    .selead_process_c li p{font-size: 13px;line-height: 22px;}

    .selead_about_l .selead_img1 {width: 330px;height: 500px;}
    .selead_about_l .selead_img2 {width: 280px;height: 280px;}
    .selead_about_r{padding: 30px 0 30px 0;}
    .selead_about_r .selead_about_info {margin: 20px 0 40px 0;}
    .selead_about_r .selead_more {margin-top: 40px;}

    .selead_choose_c li p {line-height: 20px;height: 80px;}

    .selead_news_c .selead_tit {font-size: 20px;}

}

@media screen and (max-width:1023px){
    .selead_banner{margin-top: 60px;}
    .selead_banner .swiper-slide .selead_text{top: 50%;}
    .selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 28px;}
    .selead_banner .swiper-slide .selead_text p:nth-child(2) {padding-bottom: 25px;}
    .selead_banner .swiper-slide .selead_text p:nth-child(2) i{left: -20px;}
    .selead_banner .swiper-slide.swiper-slide-active .selead_text p:nth-child(2) i svg{width: 140px;height: auto;}
    .selead_banner .swiper-slide .selead_text p:nth-child(3) {font-size: 14px;}
    .selead_banner .swiper-slide .selead_text .selead_more {margin-top: 30px;}

    .selead_pro {padding: 40px 0 40px 0;}
    .selead_pro_c {margin-top: 20px;}
    .selead_pro .selead_more {margin-top: 15px;}
    .selead_pro .selead_more .selead_mbut:nth-child(1){margin-right: 12px;}
    .selead_pro .selead_mbut {padding: 10px 20px;}

    .selead_liucheng {padding-bottom: 40px;}
    .selead_liucheng ul li:after{top: 15px;right: -15px;}
    .selead_liucheng ul li .selead_icon {width: 60px;height: 60px;}
    .selead_liucheng ul li p{font-size: 13px;margin-top: 0;}

	.selead_specialty {padding: 40px 0 0 0;}
	.selead_specialty_c {margin: 50px auto 0 auto;padding-bottom: 55px;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian1 {left: 2%;top: 8%;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian2 {left: 36%;top: -2%;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li.selead_dian3 {top: 48%;left: 10%;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms {padding: 12px 10px 12px 10px;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms .selead_tit{font-size: 15px;margin-bottom: 5px;}
	.selead_specialty_c .swiper-slide .selead_text .selead_text_li .selead_text_ms p{font-size: 13px;line-height: 18px;}

	.selead_about {padding: 50px 0 0 0;}
    .selead_about_l{width: 45%;}
    .selead_about_l .selead_img1 {width: 280px;height: 420px;}
    .selead_about_l .selead_img2 {width: 228px;height: 228px;}
    .selead_about_r {padding: 0 0 0 0;}
    .selead_about_r .selead_about_info {margin: 12px 0 24px 0;}
    .selead_about_r .selead_about_info p{line-height: 24px;}
    .selead_about_r .selead_about_num li p{font-size: 12px;margin-bottom: 0;}
    .selead_about_r .selead_about_num li .selead_tit {font-size: 12px;}
    .selead_about_r .selead_about_num li .selead_tit span {font-size: 22px;margin-right: 3px;}
    .selead_about_r .selead_more {margin-top: 24px;}

    .selead_process_b {background-size: 740px 240px;bottom: -80px;}
    .selead_process_b img {right: 85px;top: -42px;width: 240px;}
    .selead_process_b .selead_text {margin: 40px 0 40px 90px;}
    .selead_process_b .selead_text p {font-size: 22px;line-height: 35px;}

    .selead_choose {padding: 130px 0 15px 0;}
    .selead_choose_c {gap: 10px;margin-top: 20px;}
    .selead_choose_c li {width: calc(50% - 5px);padding: 15px 15px 15px 15px;}
    .selead_choose_c li .selead_tit{font-size: 18px;line-height: 24px;margin: 6px 0 8px 0;}
    .selead_choose_c li p {height: 100px;}
    
    .selead_process {padding: 0 0 40px 0;}
    .selead_process .selead_mtit {font-size: 20px;line-height: 30px;}
    .selead_process_c {margin-top: 12px;}
    .selead_process_c li:after{display: none;}
    .selead_process_c li {width: 85px;padding: 5px 5px 5px 5px;}
    .selead_process_c .selead_more {margin-top: 23px;}
    .selead_process_c .selead_more a {padding: 10px 20px;}

    .selead_news {padding: 40px 0 40px 0;}.selead_news_c {margin-top: 20px;}
    .selead_news_c .selead_tit {font-size: 16px;}
    .selead_news_c p{font-size: 14px;}
    .selead_news_c .selead_time span{font-size: 18px;}
    .selead_news_c .selead_more a{line-height: 28px;font-size: 13px;}
    .selead_news_c .swiper-slide .selead_pic {padding-bottom: 400px;}
    .selead_news_xw {width: 100%;height: auto;margin-bottom: 15px;padding: 15px 20px;}
    .selead_news_xw ul {margin: 10px 0;}
    .selead_news_xw ul li {padding: 8px 0px 8px 0px;}
    .selead_news_xw ul li p {margin-top: 5px;}
    .selead_news_c .selead_news_xw .selead_tit {color: #666666;}
    .selead_news_zh{width: calc(62% - 15px);margin: 0 15px 0 0;}
    .selead_news_case{width: 38%;}



}

@media screen and (max-width:767px){

	.selead_banner .swiper-slide .selead_text{width: 100%;}
	.selead_banner .swiper-slide .selead_text p:nth-child(1), .selead_banner .swiper-slide .selead_text p:nth-child(2){font-size: 22px;}
	.selead_banner .swiper-slide .selead_text p:nth-child(3){display: none;}
	.selead_banner .swiper-slide .selead_text .selead_more {margin-top: 10px;}
    .selead_banner .swiper-pagination {bottom: 10px;}
    .selead_banner .swiper-pagination .swiper-pagination-bullet{margin: 0 3px;}

    .selead_pro {padding: 24px 0 24px 0;}
    .selead_pro_c {margin-top: 10px;}
    .selead_pro .selead_more {margin-top: 5px;}
    .selead_pro .selead_mbut {padding: 7px 20px;}
    .selead_pro .selead_more .selead_mbut:nth-child(1) {margin-right: 8px;}

    .selead_liucheng {padding-bottom: 15px;}
	.selead_liucheng ul{font-size: 0;display: block;}
	.selead_liucheng ul li{width: 30%;display: inline-block; vertical-align: bottom;}
	.selead_liucheng ul li p {font-size: 12px;margin-top: 3px;height: 40px;}

	.selead_specialty {padding: 20px 0 0 0;}
    .selead_specialty_c{width: 100%;margin: 24px auto 0 auto;padding-bottom: 42px;}
    .selead_specialty_c .swiper-slide .selead_text{display: none;}

    .selead_about {padding: 24px 0 0 0;}
    .selead_about_l{display: none;}
    .selead_about_r{width: 100%;float: none;}
    .selead_about_r .selead_about_info {margin: 10px 0 20px 0;}
    .selead_about_r .selead_about_info p {line-height: 22px;}
    .selead_about_r .selead_more {margin-top: 12px;}

    .selead_process_b {background-size: 100% 175px;position: relative;bottom: 0;left: 0;margin: 20px 0 20px 0;}
    .selead_process_b img{display: none;}
    .selead_process_b .selead_text {margin: 30px 0 30px 32px;}
    .selead_process_b .selead_text p {font-size: 18px;line-height: 30px;}

    .selead_choose {padding: 20px 0 10px 0;}
    .selead_choose_c {gap: 6px;margin-top: 12px;}
    .selead_choose_c li {width: 100%;padding: 12px 12px 12px 12px;}
    .selead_choose_c li .selead_tit {font-size: 16px;line-height: 22px;margin: 8px 0 8px 0;}
    .selead_choose_c li p {height: auto;line-height: 18px;}
    .selead_choose_c li i{width: 50px;height: 50px;background-size: 100% 100%;}
    
    .selead_process {padding: 0 0 20px 0;}
    .selead_process_c ul{font-size: 0;display: block;}
    .selead_process_c ul li:after{display: inline-block;right: -34px;}
    .selead_process_c ul li{width: 25%;display: inline-block; vertical-align: bottom;margin-right: 8.33%;margin-bottom: 10px;}
    .selead_process_c li p {font-size: 12px;line-height: 18px;}
    .selead_process_c .selead_more {margin-top: 10px;}
    .selead_process_c .selead_more a {padding: 8px 20px;}

    .selead_news {padding: 20px 0 20px 0;}
    .selead_news_c {margin-top: 12px;}
    .selead_news_xw {margin-bottom: 10px;padding: 12px 12px;}
    .selead_news_zh {width: 100%;margin: 0 0 10px 0;}
    .selead_news_case {width: 100%;}
    .selead_news_c .swiper-slide .selead_pic {padding-bottom: 100%;}
    .selead_news_zh .swiper-slide .selead_text p {padding: 0 0 0px 0;}

}

/* Modern homepage styles - extracted from index.html */

@font-face {
  font-family: 'OPPOSans-H';
  src: url('../fonts/oppo/OPPOSans-H.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'OPPOSans-R';
  src: url('../fonts/oppo/OPPOSans-R.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'OPPOSans-M';
  src: url('../fonts/oppo/OPPOSans-M.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* Header Styles */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 52px;
  width: auto;
}


.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: #2c5aa0;
}

.nav {
  display: flex;
  gap: 40px;
  align-items: center;
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: #333;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #2c5aa0;
}

.search-container {
  position: relative;
}

.search-box {
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 25px;
  padding: 10px 50px 10px 20px;
  width: 200px;
  font-size: 14px;
}

.search-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../index_image/1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: -1;
}

.hero-content {
  text-align: center;
  color: white;
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
  position: relative;
  padding-bottom: 15vh;
  /* --hero-cert-bottom: -15%; */
}

.hero-certification-group {
  position: absolute;
  left: 50%;
  bottom: -38%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  z-index: 1;
}

.hero-info {
  position: absolute;
  left: 50%;
  bottom: -30%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 1;
}

.hero-info .hero-categories,
.hero-info .hero-products {
  margin: 0;
  line-height: 1.3;
}

.hero-headings {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-title {
  font-family: 'OPPOSans-H', 'Inter', sans-serif;
  font-size: clamp(36px, 7vw, 90px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 10px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-family: 'OPPOSans-H', 'Inter', sans-serif;
  font-size: clamp(32px, 6.5vw, 90px);
  font-weight: 900;
  letter-spacing: 4px;
  margin-bottom: 30px;
  text-transform: uppercase;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-button-row {
  margin-bottom: 48px;
}

.hero-button {
  background: #018b8c;
  color: white;
  padding: 12px 30px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  font-family: 'OPPOSans-R', 'Inter', sans-serif;
  font-size: 20px;
}

.hero-button:hover {
  background: #00acc1;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
}

.hero-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-categories {
  font-family: 'OPPOSans-M', 'Inter', sans-serif;
  font-size: 30px;
  font-weight: 500;
  margin-bottom: 10px;
  opacity: 0.9;
}

.hero-products {
  font-family: 'OPPOSans-M', 'Inter', sans-serif;
  font-size: 30px;
  font-weight: 500;
  /* let content define width on desktop; responsive blocks will constrain as needed */
  max-width: none;
  text-align: center;
  line-height: 1.4;
  white-space: nowrap;
  /* wrapping moved to responsive media query to preserve desktop look */
  display: inline-block;
  margin: 0 auto;
}

.hero-certifications {
  display: flex;
  justify-content: center;
}

.hero-certification-row {
  display: flex;
  align-items: center;
  gap: 36px;
}

.hero-certification-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-bottom: 24px;
  flex-wrap: nowrap;
}

.cert-icon {
  width: 30px;
  height: 30px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'OPPOSans-M', 'Inter', sans-serif;
  font-size: 16px;
  color: #E0E1E0;
}

.cert-text {
  letter-spacing: 2px;
}

.hero-description {
  font-family: 'OPPOSans-M', 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 500;
  opacity: 0.9;
  max-width: 600px;
  margin: 0;
  white-space: nowrap;
  /* wrapping moved to responsive media query to preserve desktop look */
}

/* Service Section */
.service-section {
  padding: 100px 0;
  background: #f8f9fa;
}

.service-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.service-title {
  font-size: 42px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #333;
}

.service-subtitle {
  font-size: 18px;
  text-align: center;
  color: #666;
  margin-bottom: 60px;
}

.service-content {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 56px;
  align-items: stretch;
}

.service-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: space-between;
}

.service-step {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid transparent;
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.service-step:not(.active) {
  color: #6c757d;
}

.service-step:not(.active) .step-content h3 {
  color: #6c757d;
}

.service-step:not(.active) .step-content p {
  color: #a3a7ad;
}

.service-step.active {
  background: #018b8c;
  color: #ffffff;
  border-color: #018b8c;
  box-shadow: none;
}

.step-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 16px;
  line-height: 1.5;
}

.service-step.active .step-content p {
  color: rgba(255, 255, 255, 0.85);
}

.service-step .step-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(1, 139, 140, 0.1);
  color: #018b8c;
  font-size: 18px;
  flex-shrink: 0;
  transition: background 0.3s ease, color 0.3s ease;
}

.service-step.active .step-arrow {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.service-step:not(.active):hover {
  background: rgba(1, 139, 140, 0.05);
  border-color: rgba(1, 139, 140, 0.12);
  box-shadow: none;
}

.service-display {
  display: flex;
  flex-direction: column;
  gap: 20px;
  height: 100%;
}

.service-detail {
  max-width: 540px;
}

.service-detail-title {
  font-size: 26px;
  font-weight: 600;
  color: #212529;
  margin-bottom: 12px;
}

.service-detail-description {
  font-size: 18px;
  color: #6c757d;
  line-height: 1.6;
}

.service-image {
  position: relative;
  overflow: hidden;
  flex: 1;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
}

.service-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
 
@media screen and (max-width: 1023px){
  .service-section { padding: 60px 0; }
  .service-content { grid-template-columns: 1fr; gap: 24px; }
  .service-steps { gap: 12px; }
  .service-step { padding: 12px 14px; }
  .service-section .step-content h3 { font-size: 18px; }
  .service-section .step-content p { font-size: 14px; }
  .service-detail { max-width: none; }
  .service-image { min-height: 220px; aspect-ratio: 16 / 9; }
}

@media screen and (max-width: 600px){
  .service-section { padding: 40px 0; }
  .service-title { font-size: 28px; }
  .service-subtitle { font-size: 14px; margin-bottom: 24px; }
  .service-content { gap: 16px; }
  .service-section .service-step .step-arrow { width: 36px; height: 36px; font-size: 16px; }
  .service-section .step-content h3 { font-size: 16px; }
  .service-section .step-content p { font-size: 13px; }
  .service-image { min-height: 200px; }
}

/* Company Section */
.company-section {
  padding: 100px 0;
  background: white;
}

.company-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.company-title {
  font-size: 42px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: #333;
}

.company-description {
  font-size: 18px;
  text-align: center;
  color: #666;
  max-width: 800px;
  margin: 0 auto 60px;
  line-height: 1.8;
}

.company-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}

.stat-item {
  text-align: center;
  padding: 40px 20px;
  background: #f8f9fa;
  border-radius: 15px;
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 48px;
  font-weight: 900;
  color: #018b8c;
  margin-bottom: 10px;
  display: block;
}

.stat-label {
  font-size: 16px;
  color: #666;
  font-weight: 500;
}

/* Brand Section */
.brand-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
}

.brand-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
}

.brand-flat { 
  width: 100%; 
}

.brand-content h3 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 32px;
  color: #333;
}

.brand-flat-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 2px solid #c5d0dc;
}

.brand-flat-letter {
  font-size: 30px;
  font-weight: 700;
  color: #1f2933;
  letter-spacing: 0.08em;
  min-width: 36px;
}

.brand-flat-text {
  font-size: 16px;
  font-weight: 500;
  color: #4d5c6f;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex: 1;
  text-align: center;
}

.brand-flat-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  padding: 10px 0;
  border: 1px solid #7ec9c9;
  border-radius: 14px;
  color: #54b7bc;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  margin-top: auto;
}

.brand-flat-button:hover {
  background: rgba(126, 201, 201, 0.1);
  color: #3a9fa4;
  border-color: #68bebe;
}

.brand-image {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  /* aspect-ratio applied in responsive media queries to avoid changing desktop layout */
}

.brand-image img {
  width: 100%;
  height: 550px;
  object-fit: cover;
}

/* Product Center Section */
.product-section {
  padding: 120px 0 140px;
  background: url('../index_image/4.webp') no-repeat center/cover;
  position: relative;
  overflow: hidden;
}


.product-container {
  position: relative;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 30px;
  z-index: 1;
}

.product-title {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 70px;
  color: #1b1b1b;
}


.product-categories {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 56px;
  margin-bottom: 90px;
  transform: scale(1.3);
  transform-origin: center;
}

.category-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 160px;
  padding: 16px 0;
  cursor: pointer;
  transition: color 0.3s ease;
  color: #6f6f6f;
  outline: none;
}


.category-item::before,
.category-item::after,
.category-item::first-letter {
  position: relative;
}

.category-item::before,
.category-item::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 2px;
  height: 46px;
  background: rgba(0, 0, 0, 0.15);
  transform: translateY(-50%);
  z-index: -1;
}

.category-item::before {
  left: -28px;
}

.category-item::after {
  right: -28px;
}

.category-item:hover,
.category-item.is-active {
  color: #0fa0a2;
}

.category-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}

.category-item.is-active .category-icon img,
.category-item:hover .category-icon img {
  filter: none;
}

.category-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.category-indicator {
  display: none;
}

.category-item.is-active .category-indicator {
  display: block;
  width: 34px;
  height: 4px;
  border-radius: 4px;
  background: #0fa0a2;
}

.category-item.is-active::before,
.category-item.is-active::after,
.category-item:hover::before,
.category-item:hover::after {
  background: rgba(15, 160, 162, 0.6);
}

.category-divider {
  width: 1px;
  height: 48px;
  background: rgba(0, 0, 0, 0.1);
}

.product-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 0.45fr);
  align-items: stretch;
  gap: 60px;
}

.product-info {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 12px;
  margin-top: 0;
  height: 140%;
}

.product-info h3 {
  font-size: 32px;
  font-weight: 700;
  color: #1f1f1f;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.product-description p {
  font-size: 18px;
  line-height: 1.6;
  color: #4a4a4a;
  margin: 0;
  width: 80%;
}

.product-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  padding: 14px 0;
  background: #0fa0a2;
  color: white;
  border-radius: 30px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background 0.3s ease, transform 0.3s ease;
  width: 130px;
}

.product-cta:hover {
  background: #12b7ba;
  transform: translateY(-2px);
}

.product-info .product-cta {
  align-self: flex-start;
  margin-top: auto;
}

.product-visual {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 100px;
  row-gap: 24px;
}

.product-nav {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: #0fa0a2;
  position: relative;
  transition: background 0.3s ease;
  cursor: pointer;
  display: block;
  left: 15px;
}

.product-nav::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: translate(-50%, -50%) rotate(45deg);
}

.product-nav-prev::after {
  transform: translate(-50%, -50%) rotate(225deg);
}

.product-nav:hover {
  background: #12b7ba;
}

.product-image {
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  margin-top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  transform-origin: top left;
  transform: translateX(-10%) scale(1.5);
}

/* OEM Section */
.oem-section {
  padding: 100px 0;
  background: white;
}

.oem-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.oem-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 60px;
  align-items: stretch;
}

.oem-left {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.oem-heading {
  text-align: left;
}

.oem-heading .oem-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  color: #1f2933;
}

.oem-heading .oem-subtitle {
  font-size: 18px;
  color: #617081;
  margin-top: 12px;
}


.oem-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 24px;
}

.oem-feature {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 26px 24px;
  background: #ffffff;
  border: 1px solid #e0e7ef;
  border-radius: 18px;
  gap: 18px;
  cursor: pointer;
}

.oem-feature + .oem-feature {
  margin-top: 0;
}

.oem-feature-active {
  border-color: #0fb2b8;
}


.oem-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background-color: #3f4f60;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: 68%;
  mask-size: 68%;
  transition: background-color 0.3s ease;
}

.oem-feature-active .oem-icon {
  background-color: #018b8c;
}

.oem-feature-active .oem-text h4,
.oem-feature-active .oem-text p {
  color: #018b8c;
}

.icon-design {
  -webkit-mask-image: url('/static/svg/设计.svg');
  mask-image: url('/static/svg/设计.svg');
}

.icon-technical {
  -webkit-mask-image: url('/static/svg/设备开发.svg');
  mask-image: url('/static/svg/设备开发.svg');
}

.icon-briefcase {
  -webkit-mask-image: url('/static/svg/公文包.svg');
  mask-image: url('/static/svg/公文包.svg');
}

.icon-building {
  -webkit-mask-image: url('/static/svg/大楼,酒店.svg');
  mask-image: url('/static/svg/大楼,酒店.svg');
}

.icon-order {
  -webkit-mask-image: url('/static/svg/订单 本子.svg');
  mask-image: url('/static/svg/订单 本子.svg');
}

.icon-truck {
  -webkit-mask-image: url('/static/svg/货车.svg');
  mask-image: url('/static/svg/货车.svg');
}

.oem-text h4 {
  font-size: 18px;
  font-weight: 700;
  color: #1f2933;
}

.oem-text p {
  margin-top: 10px;
  font-size: 14px;
  color: #5b6773;
  line-height: 1.7;
  word-break: break-word;
}


.oem-image {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: none;
  background: #f5f7fa;
  transform: none;
  transform-origin: center;
}

.oem-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* Certificate Section */
.certificate-section {
  padding: 100px 0;
  position: relative;
  background: url('../index_image/6.webp') center center / cover no-repeat;
}

.certificate-container {
  max-width: 90%;
  margin: 0 auto;
  padding: 80px 100px;
  position: relative;
  z-index: 0;
}

.certificate-container::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 20px;
  z-index: -1;
}

.certificate-container > * {
  position: relative;
  z-index: 1;
}

.certificate-title {
  font-size: 42px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #333;
}

.certificate-description {
  font-size: 18px;
  text-align: center;
  color: #666;
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.certificate-carousel {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.certificate-track-wrapper {
  overflow: hidden;
}

.certificate-track {
  display: flex;
  gap: 30px;
  transition: transform 0.4s ease;
  will-change: transform;
  flex-wrap: nowrap;
}

.certificate-track-no-transition {
  transition: none !important;
}

.certificate-track .certificate-item {
  flex: 0 0 calc((100% - 90px) / 4);
}

@media (max-width: 1024px) {
  .certificate-track {
    gap: 24px;
  }
  .certificate-track .certificate-item {
    flex: 0 0 calc((100% - 48px) / 3);
  }
}

@media (max-width: 767px) {
  .certificate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .certificate-carousel {
    grid-template-columns: 1fr;
    gap: 16px;
    justify-items: center;
  }
  .certificate-track {
    gap: 16px;
  }
  .certificate-track .certificate-item {
    flex: 0 0 calc((100% - 16px) / 2);
  }
  .certificate-nav {
    width: 40px;
    height: 40px;
  }
}

.certificate-nav {
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: #0fa0a2;
  position: relative;
  cursor: pointer;
  transition: background 0.3s ease, opacity 0.3s ease;
}

.certificate-nav::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: translate(-50%, -50%) rotate(45deg);
}

.certificate-nav:hover {
  background: #12b7ba;
}

.certificate-nav[disabled] {
  background: rgba(15, 160, 162, 0.35);
  cursor: not-allowed;
  opacity: 0.6;
}

.certificate-nav-prev::after {
  transform: translate(-50%, -50%) rotate(225deg);
}

.certificate-item {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  aspect-ratio: 4 / 3;
}

.certificate-item a { display: block; height: 100%; }

.certificate-item:hover {
  transform: none;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.certificate-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  box-sizing: border-box;
  background: #ffffff;
}

.certificate-button {
  background: transparent;
  border: 2px solid #018b8c;
  color: #018b8c;
  padding: 12px 30px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  display: block;
  width: fit-content;
  margin: 0 auto;
  transition: all 0.3s ease;
}

.certificate-button:hover {
  background: #018b8c;
  color: white;
}

/* News Section */
.news-section {
  padding: 100px 0;
  background: white;
}

.news-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}


.news-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 52px;
}

.news-title {
  font-size: 48px;
  font-weight: 700;
  color: #212121;
}

.news-more {
  font-size: 16px;
  font-weight: 600;
  color: #018b8c;
  text-decoration: none;
  position: relative;
  padding-right: 18px;
}

.news-more::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 12px;
  height: 12px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 54px;
}

.news-featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px;
}

.news-featured-static {
  margin-top: 32px;
}

.news-card {
  background: white;
  border-radius: 20px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.09);
  overflow: hidden;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.news-card:hover {
  transform: translateY(-6px);
  border-color: #00b3b5;
  box-shadow: 0 18px 40px rgba(0, 179, 181, 0.18);
}

.news-card-image img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.news-card-content {
  padding: 26px 28px 32px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-card-date {
  font-size: 15px;
  font-weight: 600;
  color: #018b8c;
  letter-spacing: 1.5px;
  margin-bottom: 14px;
}

.news-card-title {
  font-size: 22px;
  font-weight: 600;
  color: #1d1d1f;
  line-height: 1.35;
  margin-bottom: 14px;
}

.news-card-description {
  font-size: 16px;
  color: #5f6368;
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}

.news-card-more {
  align-self: flex-end;
  font-size: 14px;
  font-weight: 700;
  color: #00b3b5;
  text-decoration: none;
  letter-spacing: 2px;
}

.news-card-more:hover {
  text-decoration: underline;
}

.news-timeline {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: relative;
  padding-left: 26px;
  margin-top: 32px;
}

.news-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 179, 181, 0.4) 0%, rgba(0, 179, 181, 0) 100%);
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.timeline-date {
  min-width: 72px;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #018b8c;
}

.timeline-year {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
}

.timeline-month {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
}

.timeline-line {
  width: 35px;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 179, 181, 0) 0%, rgba(0, 179, 181, 0.5) 60%, rgba(0, 179, 181, 1) 100%);
}

.timeline-title {
  font-size: 16px;
  font-weight: 500;
  color: #1d1d1f;
  text-decoration: none;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-title:hover {
  color: #018b8c;
}

.news-empty,
.timeline-empty {
  font-size: 16px;
  color: #9aa0a6;
}

@media (max-width: 1100px) {
  .news-layout {
    grid-template-columns: 1fr;
  }

  .news-featured {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .news-timeline {
    padding-left: 10px;
  }

  /* Tighten cards also for tablets */
  .news-section .news-card-image img { height: 200px; object-fit: cover; }
  .news-section .news-card-content { padding: 16px; }
  .news-section .news-card-title {
    font-size: 20px; line-height: 1.4;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
  }
  .news-section .news-card-description {
    font-size: 14px; line-height: 1.6;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
  }
}

@media (max-width: 767px) {
  .news-section { padding: 28px 0; }
  .news-container { padding: 0 12px; }

  .news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 16px;
  }

  .news-title { font-size: 24px; }
  .news-layout { gap: 16px; }

  .news-featured {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Ensure all homepage news cards shrink properly on mobile */
  .news-section .news-card-image img { height: 150px !important; object-fit: cover; object-position: top; }
  .news-section .news-card-content { padding: 12px 12px 14px; }
  .news-section .news-card-title { font-size: 16px; line-height: 1.4; }
  .news-section .news-card-description { font-size: 13px; line-height: 1.6; }
  /* Remove clamping on small screens */
  .news-section .news-card-title,
  .news-section .news-card-description { display: block !important; overflow: visible; }
  .news-section .news-card { overflow: visible; min-height: auto; }
  .news-section .news-card-more { font-size: 12px; letter-spacing: 1.2px; align-self: flex-start; white-space: normal; word-break: break-word; line-height: 1.4; }

  .news-timeline { gap: 16px; padding-left: 12px; }
  .timeline-item { gap: 12px; }
  .timeline-date { min-width: 56px; }
  .timeline-month { font-size: 22px; }
  .timeline-title { white-space: normal; overflow: visible; text-overflow: initial; display: block; word-break: break-word; }
}

/* Testimonial Section */
.testimonial-section {
  padding: 80px 0 60px;
  background: #ffffff;
}

.testimonial-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

.testimonial-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  color: #2c2c2c;
}

.testimonial-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  width: min(80vw, 100%);
  max-width: 1100px;
  margin: 0 auto 40px;
}

.testimonial-nav {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: #1cb1ad;
  color: #ffffff;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.testimonial-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(28, 177, 173, 0.25);
}

.testimonial-nav span {
  line-height: 1;
}

.testimonial-text {
  flex: 1;
  text-align: left;
}

.testimonial-author {
  font-size: 20px;
  font-weight: 700;
  color: #2c2c2c;
  margin-bottom: 12px;
}

.testimonial-quote {
  font-size: 18px;
  color: #5c5c5c;
  line-height: 1.7;
}

.testimonial-map {
  display: block;
  width: min(80vw, 100%);
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 992px) {
  .testimonial-content {
    gap: 24px;
    width: 100%;
    max-width: 720px;
  }

  .testimonial-text {
    max-width: none;
  }
}

@media (max-width: 767px) {
  .testimonial-section {
    padding: 50px 0 40px;
  }

  .testimonial-title {
    font-size: 32px;
    margin-bottom: 32px;
  }

  .testimonial-content {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 16px;
    width: 100%;
    max-width: 720px;
    margin: 0 auto 32px;
  }
  .testimonial-nav-prev { grid-column: 1; grid-row: 1; justify-self: center; }
  .testimonial-text { grid-column: 2; grid-row: 1; text-align: center; }
  .testimonial-nav-next { grid-column: 3; grid-row: 1; justify-self: center; }

  .testimonial-nav {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }

  .testimonial-text { text-align: center; }

  .testimonial-author {
    margin-bottom: 8px;
  }
}

/* Short desktop viewport fix: avoid clipping and scale content down */
@media (max-height: 800px) and (min-width: 1024px) {
  .hero-section { height: auto; min-height: 100svh; overflow: visible; }
  .hero-bg { background-attachment: scroll; }
  .hero-content { padding-bottom: 8vh; }
  .hero-title { font-size: clamp(28px, 7vmin, 64px); }
  .hero-subtitle { font-size: clamp(22px, 6vmin, 52px); letter-spacing: 1px; }
  .hero-info { bottom: -18%; }
  .hero-certification-group { bottom: -24%; }
}

/* Extra short desktop heights: place info blocks in normal flow */
@media (max-height: 700px) and (min-width: 1024px) {
  .hero-section { height: auto; min-height: 100svh; overflow: visible; }
  .hero-info,
  .hero-certification-group {
    position: static;
    transform: none;
    width: 100%;
    max-width: 100%;
    margin-top: 12px;
  }
  .hero-content { padding-bottom: 24px; }
  .hero-title { font-size: clamp(24px, 6vmin, 56px); }
  .hero-subtitle { font-size: clamp(20px, 5.5vmin, 44px); }
}


.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

.contact-icon {
  font-size: 30px;
  color: #ffffff;
}

.contact-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
}

.contact-value {
  font-size: 14px;
  letter-spacing: 0.4px;
  opacity: 0.85;
}

/* Large-screen: preserve original hero offsets (moved from inline styles) */
@media (min-width: 1200px) {
  .hero-info { max-width: none; }
  .hero-products { margin-left: 0; max-width: none; width: fit-content; }
  .hero-certifications { margin-left: -25%; }
  .hero-description { padding-left: 2%; }
}

/* Cap Brand image size to avoid upscaling blur on medium screens */
@media (max-width: 1200px) {
  .brand-image { max-width: 640px; margin: 0 auto; }
  .brand-image img { height: auto; max-height: 320px; }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
  .hero-info { max-width: none; }
  .hero-products { max-width: none; width: fit-content; }
}

/* Tablet and below: adaptive media ratios and text wrapping without altering desktop */
@media (max-width: 1024px) {
  /* Image containers */
  .service-image { aspect-ratio: 16 / 9; }
  .service-image img { height: 100%; }

  /* Brand section: stack and full-width rows on tablets */
  .brand-section { grid-template-columns: 1fr; gap: 32px; align-items: stretch; }
  .brand-content, .brand-image { width: 100%; }
  .brand-flat-row { width: 100%; }
  .brand-image { aspect-ratio: auto; max-width: 520px; margin: 0 auto; }
  .brand-image img { width: 100%; height: auto; max-height: 240px; object-fit: cover; object-position: center; display: block; }

  .oem-image { aspect-ratio: 3 / 2; }
  .oem-image img { height: 100%; object-fit: cover; }

  .certificate-item { aspect-ratio: 4 / 3; }
  .certificate-image { height: 100%; }

  .news-image { aspect-ratio: 16 / 9; height: auto; }

  /* Hero text wrapping on smaller screens */
  .hero-products,
  .hero-description {
    white-space: normal;
    text-wrap: balance;
    overflow-wrap: anywhere;
  }

  /* Place description above PNG icons on mobile */
  .hero-certifications { flex-direction: column; align-items: center; gap: 8px; }
  .hero-description { order: 1; text-align: center; }
  .hero-certification-row { order: 2; }
  .cert-icon { display: inline-block; opacity: 1; }

  /* Hero medium screens: avoid overlap, disable parallax */
  .hero-bg { background-attachment: scroll; }
  .hero-info,
  .hero-certification-group {
    position: static;
    transform: none;
    width: 100%;
    max-width: 100%;
    margin-top: 12px;
  }
  .hero-content { padding-bottom: 24px; }
  .hero-section { height: auto; min-height: 100svh; overflow: visible; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 48px;
  }

  .hero-subtitle {
    font-size: 32px;
  }

  .service-content,
  .brand-section,
  .product-showcase,
  .oem-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .brand-image { max-width: 440px; }
  .brand-image img { max-height: 180px; }
  .brand-flat-row { width: 100%; gap: 12px; }
  .brand-flat-letter { min-width: 28px; font-size: 26px; }
  .brand-flat-text { font-size: 14px; }
  .brand-flat-button { align-self: flex-start; }

  .company-stats,
  .certificate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .certificate-container { max-width: 100%; padding: 24px 16px; }
  .certificate-title { font-size: 24px; text-align: center; margin-bottom: 12px; }
  .certificate-description { font-size: 14px; text-align: center; margin-bottom: 16px; }
  .certificate-carousel { grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; justify-items: stretch; }
  .certificate-nav { width: 36px; height: 36px; }
  .certificate-track { gap: 12px; }
  .certificate-track .certificate-item { flex: 0 0 calc((100% - 12px) / 2); }
  .certificate-image { height: 100%; }

  .product-categories {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
    justify-items: center;
    transform: none;
  }
  .category-item { min-width: 0; padding: 10px 0; }
  .category-icon { width: 52px; height: 52px; }
  .category-name { font-size: 14px; text-align: center; }

  .product-showcase { grid-template-columns: 1fr; grid-template-areas: 'visual' 'info'; gap: 24px; }
  .product-visual { grid-area: visual; }
  .product-info { grid-area: info; }
  .product-info .product-cta { order: -1; align-self: center; margin: 8px 0 12px; width: auto; padding: 10px 18px; }
  .product-image img { max-height: 300px; }

  .product-visual { grid-template-columns: auto minmax(0,1fr) auto; column-gap: 16px; row-gap: 8px; }
  .product-visual .product-nav-prev { grid-column: 1; grid-row: 1; }
  .product-visual .product-image { grid-column: 2; grid-row: 1; }
  .product-visual .product-nav-next { grid-column: 3; grid-row: 1; }
  .product-visual .product-cta--mobile { grid-column: 1 / -1; grid-row: 2; justify-self: center; width: auto; padding: 10px 18px; margin-top: 6px; }
  .product-visual .product-nav { left: 0; }
  .product-image img { transform: none; max-height: 320px; }
  .product-info { height: auto; text-align: center; }
  .product-description p { width: 100%; }
  .category-item::before,
  .category-item::after { display: none; }

  .oem-left {
    gap: 30px;
  }

  .oem-heading {
    text-align: center;
  }

  .oem-grid {
    grid-template-columns: 1fr;
  }

  /* Avoid parallax jank and overlapping on small screens */
  .hero-bg {
    background-attachment: scroll;
  }
  .hero-info,
  .hero-certification-group {
    position: static;
    transform: none;
    width: 100%;
    max-width: 100%;
    margin-top: 12px;
  }
  .hero-section { height: auto; min-height: 100svh; }
  .hero-content { padding-bottom: 24px; }

  .footer-contact {
    flex-direction: column;
    gap: 20px;
  }
  .nav {
    display: none;
  }
}

@media (max-width: 480px) {
  .certificate-grid { grid-template-columns: 1fr; }
  .company-stats { grid-template-columns: 1fr; }
  .hero-button-row { margin-bottom: 24px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 28px; letter-spacing: 2px; }
  .hero-certification-group { gap: 8px; }
  .cert-icon { width: 24px; height: 24px; }
}