*{margin:0;padding:0;box-sizing:border-box}
html,body{font-family:"Microsoft YaHei","微软雅黑",Arial,sans-serif;color:#222;font-size:14px;line-height:1.7;background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .25s,background .25s}
a:hover{color:#d21126}
img{display:block;max-width:100%;border:0}
ul,li{list-style:none}
h1,h2,h3,h4{font-weight:normal}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== topbox ===== */
.topbox{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.05);position:relative;z-index:50}
.lotbox{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.lot-left{display:flex;align-items:center;gap:14px}
.logo-ico{width:46px;height:46px;flex-shrink:0}
.lot-brand{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:24px;font-weight:bold;color:#222;letter-spacing:1px}
.brand-sub{font-size:11px;color:#d21126;letter-spacing:3px;margin-top:3px;text-transform:uppercase}
.lot-tag{margin-left:8px;padding-left:14px;border-left:1px solid #ebebeb;color:#888;font-size:12px;max-width:220px}
.lot-right{display:flex;align-items:center;gap:8px}
.lot-phone{display:flex;align-items:center;gap:10px}
.lot-phone-label{font-size:12px;color:#999}
.lot-phone-num{font-size:24px;font-weight:bold;color:#d21126;font-family:Arial;letter-spacing:1px}
.lot-phone-ico{width:34px;height:34px;border-radius:50%;background:linear-gradient(124deg,#ebb13c,#ed7841);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.m-btn{display:none;width:38px;height:38px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;background:none;border:0}
.m-btn span{display:block;width:24px;height:3px;background:#222;border-radius:2px}

/* ===== menubox / nav ===== */
.menubox{border-top:1px solid #f0f0f0}
.nav{display:flex;max-width:1200px;margin:0 auto;padding:0 20px}
.nav-li{position:relative}
.nav-li>a{display:block;padding:16px 26px;font-size:16px;color:#333;position:relative}
.nav-li>a:after{content:"";position:absolute;left:50%;bottom:0;width:0;height:3px;background:linear-gradient(124deg,#ebb13c,#ed7841);transition:all .3s;transform:translateX(-50%)}
.nav-li:hover>a,.nav-li.active>a{color:#d21126}
.nav-li:hover>a:after,.nav-li.active>a:after{width:60%}
.has-sub>a:after{content:"";width:0;height:0}
.has-sub .caret{font-size:10px;margin-left:4px;color:#bbb}
.nav-sub{position:absolute;left:0;top:100%;min-width:160px;background:#fff;border:1px solid #ebe;border-top:3px solid #d21126;box-shadow:0 6px 16px rgba(0,0,0,.08);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s;z-index:30}
.has-sub:hover .nav-sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav-sub li a{display:block;padding:11px 18px;font-size:13px;color:#666;white-space:nowrap;border-bottom:1px solid #f5f5f5}
.nav-sub li:last-child a{border-bottom:0}
.nav-sub li a:hover{background:#d21126;color:#fff;padding-left:24px}

/* ===== banner ===== */
.banner{position:relative;overflow:hidden;background:#f5f5f5}
.banner-stage{position:relative;height:480px;overflow:hidden}
.banner-track{position:relative;width:100%;height:100%}
.banner-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease}
.banner-slide.on{opacity:1;z-index:2}
.banner-slide img{width:100%;height:100%;object-fit:cover}
.slide-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(33,16,8,.55),rgba(33,16,8,.15));z-index:3}
.slide-txt{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center;color:#fff;z-index:5;padding:0 20px}
.slide-txt h2{font-size:42px;font-weight:bold;letter-spacing:2px;text-shadow:0 2px 12px rgba(0,0,0,.4)}
.slide-txt p{font-size:18px;margin-top:14px;letter-spacing:1px;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.slide-btn{display:inline-block;margin-top:26px;padding:12px 36px;background:linear-gradient(124deg,#ebb13c,#ed7841);color:#fff;font-size:15px;border-radius:24px;letter-spacing:1px}
.slide-btn:hover{color:#fff;opacity:.92;transform:translateY(-2px)}
.ban-dots{position:absolute;left:0;right:0;bottom:24px;text-align:center;z-index:6}
.ban-dot{display:inline-block;width:30px;height:4px;background:rgba(255,255,255,.5);margin:0 4px;border-radius:2px;cursor:pointer;transition:all .3s}
.ban-dot.on{background:linear-gradient(124deg,#ebb13c,#ed7841);width:46px}
.ban-prev,.ban-next{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background:rgba(255,255,255,.25);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;z-index:6;cursor:pointer}
.ban-prev{left:24px}.ban-next{right:24px}
.ban-prev:hover,.ban-next:hover{background:#d21126}

/* ===== section / sec title ===== */
.section{padding:64px 0}
.section.gray{background:#f9f9f9}
.sec-hd{text-align:center;margin-bottom:40px}
.sec-tit{font-size:30px;color:#222;font-weight:bold;letter-spacing:1px}
.sec-tit strong{color:#d21126}
.sec-en{display:block;font-size:13px;color:#bbb;letter-spacing:4px;text-transform:uppercase;margin-top:8px;font-family:Arial}
.sec-line{width:64px;height:3px;background:linear-gradient(124deg,#ebb13c,#ed7841);margin:14px auto 0;border-radius:2px}

/* ===== cat-nav (分类胶囊) ===== */
.cat-nav{text-align:center;margin-bottom:36px}
.cat-nav a{display:inline-block;padding:9px 26px;margin:0 6px 10px;background:#fff;border:1px solid #ebebeb;color:#555;font-size:14px;border-radius:20px}
.cat-nav a:hover,.cat-nav a.cur{background:#d21126;border-color:#d21126;color:#fff}

/* ===== product grid ===== */
.prod-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.prod-card{width:calc(25% - 24px);margin:0 12px 24px;background:#fff;border:1px solid #f0f0f0;overflow:hidden;transition:all .3s}
.prod-card:hover{box-shadow:0 10px 24px rgba(210,17,38,.12);transform:translateY(-4px);border-color:#f5d5d8}
.prod-img{width:100%;aspect-ratio:4/3;overflow:hidden;background:#f5f5f5}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-name{padding:14px;text-align:center}
.prod-name b{display:block;font-size:14px;color:#333;line-height:1.5}
.prod-card:hover .prod-name b{color:#d21126}

/* ===== more btn ===== */
.more-btn{text-align:center;margin-top:18px}
.more-btn a{display:inline-flex;align-items:center;gap:6px;padding:10px 30px;border:1px solid #d21126;color:#d21126;font-size:14px;border-radius:22px;letter-spacing:1px}
.more-btn a:hover{background:#d21126;color:#fff}
.more-btn i{font-style:normal;font-size:13px}

/* ===== about row ===== */
.about-row{display:flex;align-items:stretch;background:#fff}
.about-left{flex:1;padding:46px 50px;background:linear-gradient(135deg,#fff7f0,#fff)}
.about-quote{font-size:42px;color:#ebb13c;line-height:1;margin-bottom:18px;font-family:Georgia,serif}
.about-intro{margin-bottom:24px}
.about-intro b{font-size:22px;color:#222;font-weight:bold}
.about-intro cite{display:block;font-style:normal;color:#666;margin-top:12px;line-height:1.9}
.about-intro cite strong{color:#d21126}
.about-phone{display:flex;gap:40px;margin:26px 0;padding-top:22px;border-top:1px dashed #ebebeb}
.about-phone em{display:block;font-style:normal;font-size:12px;color:#999;margin-bottom:4px}
.about-phone b{font-size:20px;color:#222;font-family:Arial}
.about-kefu h3{font-size:16px;color:#222;margin-bottom:14px;padding-left:10px;border-left:3px solid #d21126}
.kefu-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kefu-item{padding:10px 14px;background:#fff;border:1px solid #f0f0f0;font-size:13px}
.kefu-item b{color:#666;font-weight:normal;margin-right:4px}
.kefu-item a{color:#d21126}
.about-right{flex:0 0 360px;background:linear-gradient(135deg,#d21126,#ed7841);position:relative;display:flex;align-items:center;justify-content:center;padding:40px 30px;text-align:center}
.about-pic{display:none}
.qr-tip{color:#fff}
.qr-tip img{width:130px;height:130px;margin:0 auto 16px;background:#fff;padding:6px;border-radius:6px}
.qr-tip span{display:block;font-size:14px;line-height:1.8;opacity:.95}

/* ===== why row ===== */
.why-row{display:flex;align-items:center;gap:50px}
.why-pic{flex:1;overflow:hidden;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.why-pic img{width:100%;aspect-ratio:4/3;object-fit:cover}
.why-con{flex:1}
.why-tit{font-size:26px;color:#222;font-weight:bold;margin-bottom:30px}
.why-tit strong{color:#d21126}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.why-item{padding:22px;background:#fff;border:1px solid #f0f0f0;transition:all .3s}
.why-item:hover{box-shadow:0 8px 20px rgba(0,0,0,.08);border-color:#f5d5d8;transform:translateY(-3px)}
.why-ico{width:48px;height:48px;margin-bottom:14px}
.why-ico svg{width:100%;height:100%}
.why-item b{display:block;font-size:17px;color:#222;margin-bottom:6px}
.why-item em{font-style:normal;color:#888;font-size:13px;line-height:1.7}

/* ===== equip grid ===== */
.equip-grid{display:flex;flex-wrap:wrap;margin:0 -14px}
.equip-card{width:calc(33.333% - 28px);margin:0 14px 24px;background:#fff;border:1px solid #f0f0f0;overflow:hidden;transition:all .3s}
.equip-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.1);transform:translateY(-4px)}
.equip-img{aspect-ratio:3/2;overflow:hidden;background:#f5f5f5}
.equip-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.equip-card:hover .equip-img img{transform:scale(1.05)}
.equip-con{padding:20px 22px}
.equip-con strong{display:block;font-size:16px;color:#222;margin-bottom:8px}
.equip-con em{font-style:normal;color:#888;font-size:13px;line-height:1.7}

/* ===== news grid (3列) ===== */
.news-grid{display:flex;flex-wrap:wrap;margin:0 -14px}
.news-col{width:calc(33.333% - 28px);margin:0 14px;background:#fff;border:1px solid #f0f0f0}
.news-col-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:2px solid #d21126}
.news-col-head b{font-size:17px;color:#222}
.news-col-head em{font-style:normal;font-size:12px;color:#d21126}
.news-list{padding:8px 20px 18px}
.news-li{padding:14px 0;border-bottom:1px dashed #eee}
.news-li:last-child{border-bottom:0}
.news-li strong{display:block;font-size:14px;color:#333;line-height:1.5;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-li:hover strong{color:#d21126}
.news-li cite{display:block;font-style:normal;color:#999;font-size:12px;line-height:1.6;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;white-space:normal}
.news-li i{display:block;font-style:normal;color:#bbb;font-size:12px;margin-top:6px;font-family:Arial}

/* ===== footer ===== */
.footer{background:#2a2a2a;color:#bbb;padding:54px 0 0}
.foot-row{display:flex;flex-wrap:wrap;margin:0 -16px}
.foot-col{padding:0 16px 36px}
.foot-col.fcol-about{flex:0 0 34%}
.foot-col.fcol-nav{flex:0 0 18%}
.foot-col.fcol-pro{flex:0 0 22%}
.foot-col.fcol-qr{flex:0 0 14%;margin-left:auto;text-align:center}
.foot-m1{font-size:17px;color:#fff;font-weight:bold;margin-bottom:18px;padding-left:12px;border-left:3px solid #d21126}
.foot-contact li{line-height:2.1;font-size:13px}
.foot-contact em{font-style:normal;color:#888;margin-right:6px}
.foot-contact span{color:#ccc}
.foot-nav li a,.foot-pro li a{display:block;padding:5px 0;font-size:13px;color:#aaa}
.foot-nav li a:hover,.foot-pro li a:hover{color:#d21126;padding-left:4px}
.foot-qr img{width:120px;height:120px;background:#fff;padding:5px;border-radius:4px;margin:0 auto 10px}
.foot-qr span{display:block;font-size:12px;color:#999}
.foot-bottom{border-top:1px solid #3a3a3a;padding:18px 0;text-align:center;font-size:12px;color:#888}
.foot-bottom a{color:#888}
.foot-bottom a:hover{color:#d21126}
.beian-link{display:inline-block}

/* ===== inner page ===== */
.n-banner{position:relative;height:280px;overflow:hidden;background:#333}
.n-banner img{width:100%;height:100%;object-fit:cover}
.n-banner-mask{position:absolute;inset:0;background:linear-gradient(124deg,rgba(210,17,38,.78),rgba(237,120,65,.6))}
.n-banner h1{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center;color:#fff;font-size:38px;font-weight:bold;letter-spacing:3px;z-index:3}
.n-banner .en{display:block;font-size:14px;letter-spacing:5px;color:rgba(255,255,255,.8);margin-top:8px;text-transform:uppercase}

.crumb{background:#f9f9f9;border-bottom:1px solid #f0f0f0}
.crumb .wrap{display:flex;align-items:center;gap:8px;padding-top:12px;padding-bottom:12px;font-size:13px;color:#999}
.crumb a{color:#888}
.crumb a:hover{color:#d21126}
.crumb i{color:#ccc;font-style:normal}
.crumb span{color:#555}

.content-card{max-width:1200px;margin:40px auto;background:#fff;border:1px solid #f0f0f0;border-radius:6px;padding:40px 50px;box-shadow:0 4px 14px rgba(0,0,0,.03)}
.card-title{font-size:22px;color:#222;text-align:center;font-weight:bold;padding-bottom:18px;margin-bottom:30px;position:relative}
.card-title:after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(124deg,#ebb13c,#ed7841);border-radius:2px}

/* product list pager */
.pager{text-align:center;margin-top:36px}
.pager span,.pager a{display:inline-block;min-width:38px;height:38px;line-height:36px;padding:0 10px;margin:0 4px;border:1px solid #ebebeb;color:#666;font-size:13px;border-radius:4px}
.pager a:hover{border-color:#d21126;color:#d21126}
.pager .on{background:#d21126;border-color:#d21126;color:#fff}

/* product detail */
.pd-top{display:flex;gap:40px;margin-bottom:36px}
.pd-img{flex:0 0 44%}
.pd-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid #f0f0f0}
.pd-info{flex:1}
.pd-cat{display:inline-block;padding:4px 14px;background:#fff5f5;color:#d21126;font-size:12px;border-radius:12px;border:1px solid #f5d5d8;margin-bottom:14px}
.pd-info h1{font-size:24px;color:#222;font-weight:bold;margin-bottom:14px;line-height:1.4}
.pd-brief{color:#666;font-size:14px;line-height:1.9;margin-bottom:20px;padding-bottom:20px;border-bottom:1px dashed #eee}
.pd-params{width:100%;border-collapse:collapse;margin-bottom:22px;font-size:13px}
.pd-params th{width:120px;text-align:left;padding:10px 14px;background:#f9f9f9;color:#666;font-weight:normal;border:1px solid #f0f0f0}
.pd-params td{padding:10px 14px;color:#333;border:1px solid #f0f0f0}
.pd-quote{display:inline-block;padding:11px 34px;background:linear-gradient(124deg,#ebb13c,#ed7841);color:#fff;font-size:14px;border-radius:22px}
.pd-quote:hover{color:#fff;opacity:.92}
.pd-block{margin-bottom:34px}
.pd-block h3{font-size:18px;color:#222;font-weight:bold;margin-bottom:16px;padding-left:12px;border-left:4px solid #d21126}
.pd-p{color:#666;line-height:1.95;margin-bottom:12px;text-indent:2em}
.pd-feat{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pd-feat-li{padding:10px 14px 10px 34px;background:#fafafa;border:1px solid #f0f0f0;color:#555;font-size:13px;position:relative;border-radius:4px}
.pd-feat-li:before{content:"\2714";position:absolute;left:12px;top:9px;color:#d21126}
.relate{margin-top:10px}
.relate h3{font-size:18px;color:#222;font-weight:bold;margin-bottom:18px;padding-left:12px;border-left:4px solid #d21126}
.relate-grid{display:flex;flex-wrap:wrap;margin:0 -10px}
.relate-li{width:calc(33.333% - 20px);margin:0 10px 10px;border:1px solid #f0f0f0;text-align:center;overflow:hidden;transition:all .3s}
.relate-li:hover{box-shadow:0 6px 16px rgba(0,0,0,.08);transform:translateY(-3px)}
.relate-li img{width:100%;aspect-ratio:4/3;object-fit:cover}
.relate-li b{display:block;padding:10px;font-size:13px;color:#555;font-weight:normal}

/* news list */
.nl-list{margin:0 -12px}
.nl-li{display:flex;width:100%;margin:0 12px 22px;background:#fff;border:1px solid #f0f0f0;overflow:hidden;transition:all .3s}
.nl-li:hover{box-shadow:0 8px 20px rgba(0,0,0,.08);transform:translateY(-3px)}
.nl-thumb{flex:0 0 240px;overflow:hidden;background:#f5f5f5}
.nl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.nl-li:hover .nl-thumb img{transform:scale(1.05)}
.nl-body{flex:1;padding:20px 26px}
.nl-meta{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.nl-cat{display:inline-block;padding:3px 10px;background:#fff5f5;color:#d21126;font-size:11px;border-radius:3px;border:1px solid #f5d5d8}
.nl-date{color:#bbb;font-size:12px;font-family:Arial}
.nl-body h3{font-size:17px;color:#222;margin-bottom:10px;font-weight:bold}
.nl-li:hover .nl-body h3{color:#d21126}
.nl-body p{color:#888;font-size:13px;line-height:1.8}

/* news detail */
.article h1{font-size:24px;color:#222;text-align:center;font-weight:bold;line-height:1.5;margin-bottom:14px}
.article-meta{text-align:center;color:#999;font-size:13px;padding-bottom:18px;border-bottom:1px solid #f0f0f0;margin-bottom:26px}
.article-meta span{margin:0 10px}
.article-body p{color:#555;line-height:2;text-indent:2em;margin-bottom:16px;font-size:14.5px}
.article-fig{margin:24px 0;text-align:center}
.article-fig img{width:100%;max-width:680px;margin:0 auto;border-radius:4px}
.article-fig p{font-size:13px;color:#999;margin-top:10px;text-indent:0}
.pagef{margin:30px 0;border-top:1px solid #f0f0f0;border-bottom:1px solid #f0f0f0;padding:16px 0}
.pagef p{line-height:2;color:#666;font-size:14px}
.pagef a{color:#d21126}
.returnlist{display:inline-block;margin-top:10px;padding:9px 28px;border:1px solid #d21126;color:#d21126;border-radius:22px;font-size:13px}
.returnlist:hover{background:#d21126;color:#fff}

/* about page */
.intro-row{display:flex;gap:40px;margin-bottom:40px}
.intro-img{flex:0 0 42%}
.intro-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.intro-con{flex:1}
.intro-con h3{font-size:22px;color:#222;font-weight:bold;margin-bottom:18px;padding-left:12px;border-left:4px solid #d21126}
.intro-con p{color:#666;line-height:1.95;margin-bottom:14px;text-indent:2em}
.tl-title{text-align:center;font-size:20px;color:#222;font-weight:bold;margin:30px 0 24px}
.tl-title em{font-style:normal;color:#bbb;font-size:13px;margin-left:8px}
.timeline{position:relative;padding-left:28px;margin-bottom:30px}
.timeline:before{content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;background:linear-gradient(#ebb13c,#ed7841)}
.tl-li{position:relative;padding:0 0 24px 22px}
.tl-li:before{content:"";position:absolute;left:-24px;top:6px;width:14px;height:14px;border-radius:50%;background:#d21126;border:3px solid #fff;box-shadow:0 0 0 2px #d21126}
.tl-li b{color:#d21126;font-size:16px;font-family:Arial}
.tl-li h4{font-size:16px;color:#222;margin:4px 0 6px;font-weight:bold}
.tl-li p{color:#888;font-size:13px;line-height:1.8}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:30px}
.culture-li{padding:26px 22px;background:#fafafa;border-top:3px solid #d21126;text-align:center}
.cico{width:54px;height:54px;line-height:54px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(124deg,#ebb13c,#ed7841);color:#fff;font-size:22px;font-weight:bold}
.culture-li h4{font-size:17px;color:#222;margin-bottom:10px;font-weight:bold}
.culture-li p{color:#888;font-size:13px;line-height:1.8}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.team-li{text-align:center}
.team-li img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:6px;margin-bottom:12px}
.team-li b{display:block;font-size:16px;color:#222}
.team-li span{display:block;color:#999;font-size:13px;margin-top:4px}

/* contact page */
.cinfo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px}
.ci-li{padding:24px 18px;background:#fafafa;border-top:3px solid #d21126;text-align:center}
.ci-ico{width:50px;height:50px;line-height:50px;margin:0 auto 12px;border-radius:50%;background:linear-gradient(124deg,#ebb13c,#ed7841);color:#fff;font-size:22px}
.ci-li b{display:block;font-size:15px;color:#222;margin-bottom:8px}
.ci-li p{color:#888;font-size:13px;line-height:1.7}
.cform{background:#fafafa;padding:30px;border-radius:6px}
.cform h3{font-size:18px;color:#222;font-weight:bold;margin-bottom:20px;padding-left:12px;border-left:4px solid #d21126}
.mf-li{margin-bottom:16px}
.mf-li label{display:block;font-size:13px;color:#666;margin-bottom:6px}
.mf-li label i{color:#d21126;font-style:normal;margin-left:2px}
.mf-input,.mf-textarea{width:100%;padding:11px 14px;border:1px solid #e0e0e0;background:#fff;font-size:14px;font-family:inherit;border-radius:4px;outline:none;transition:border .25s}
.mf-input:focus,.mf-textarea:focus{border-color:#d21126}
.mf-textarea{min-height:110px;resize:vertical}
.mf-submit{padding:12px 40px;background:linear-gradient(124deg,#ebb13c,#ed7841);color:#fff;border:0;font-size:15px;border-radius:22px;cursor:pointer;font-family:inherit;letter-spacing:1px}
.mf-submit:hover{opacity:.92}

/* ===== mobile nav drawer + backtop ===== */
.m-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:200}
.m-drawer{position:fixed;right:-280px;top:0;bottom:0;width:260px;background:#fff;z-index:201;transition:right .3s;overflow-y:auto;padding-bottom:30px}
.m-drawer.open{right:0}
.m-drawer .m-top{background:#d21126;color:#fff;padding:18px 20px;font-size:16px;display:flex;justify-content:space-between;align-items:center}
.m-drawer .m-close{font-size:24px;cursor:pointer;line-height:1}
.m-drawer a{display:block;padding:13px 20px;border-bottom:1px solid #f5f5f5;color:#333;font-size:15px}
.m-drawer a:hover{background:#faf5f5;color:#d21126;padding-left:26px}
.m-drawer .m-sub a{padding-left:36px;font-size:13px;color:#888}
.backtop{position:fixed;right:24px;bottom:30px;width:46px;height:46px;line-height:44px;text-align:center;background:#d21126;color:#fff;border-radius:50%;font-size:22px;cursor:pointer;z-index:90;opacity:0;visibility:hidden;transition:all .3s;box-shadow:0 4px 14px rgba(210,17,38,.4)}
.backtop.show{opacity:1;visibility:visible}
.backtop:hover{background:#b00e20}

/* ===== fade-in animation ===== */
.fade{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.fade.in{opacity:1;transform:none}

/* ===== responsive ===== */
@media (max-width:1024px){
  .prod-card{width:calc(33.333% - 24px)}
  .equip-card{width:calc(50% - 28px)}
  .news-col{width:calc(50% - 28px)}
  .foot-col.fcol-about{flex:0 0 50%}
  .foot-col.fcol-nav{flex:0 0 24%}
  .foot-col.fcol-pro{flex:0 0 24%}
  .foot-col.fcol-qr{flex:0 0 100%;margin-left:0;margin-top:10px}
}
@media (max-width:768px){
  .lot-tag{display:none}
  .brand-name{font-size:20px}
  .lot-phone-label{display:none}
  .lot-phone-num{font-size:18px}
  .m-btn{display:flex}
  .menubox{display:none}
  .banner-stage{height:300px}
  .slide-txt h2{font-size:24px}
  .slide-txt p{font-size:13px}
  .section{padding:44px 0}
  .sec-tit{font-size:22px}
  .prod-card{width:calc(50% - 24px)}
  .about-row{flex-direction:column}
  .about-right{flex:0 0 auto;width:100%;padding:30px 20px}
  .why-row{flex-direction:column;gap:26px}
  .why-grid{grid-template-columns:1fr}
  .equip-card{width:calc(100% - 28px)}
  .news-col{width:calc(100% - 28px)}
  .foot-col{flex:0 0 50% !important;margin-left:0 !important}
  .content-card{padding:24px 18px;margin:24px auto}
  .pd-top{flex-direction:column;gap:20px}
  .pd-img{flex:0 0 auto}
  .pd-feat{grid-template-columns:1fr}
  .nl-li{flex-direction:column}
  .nl-thumb{flex:0 0 auto}
  .nl-thumb img{aspect-ratio:16/9}
  .culture-grid,.team-grid{grid-template-columns:1fr}
  .cinfo-grid{grid-template-columns:1fr 1fr}
  .intro-row{flex-direction:column}
  .intro-img{flex:0 0 auto}
  .n-banner{height:180px}
  .n-banner h1{font-size:26px}
  .relate-li{width:calc(100% - 20px)}
}