:root{
  --red:#d21126; --red-d:#b80e20; --orange:#f3651b; --gold:#bda77d; --gold-l:#ebb13c; --orange2:#ed7841;
  --grad:linear-gradient(124deg,#ebb13c,#ed7841);
  --t1:#000; --t2:#333; --t3:#666; --t4:#999;
  --bg:#fff; --bg-soft:#f9f9f9; --bg-gray:#f5f5f5;
  --bd:#ebebeb; --bd2:#f0f0f0; --foot:#2a2a2a;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{font-size:16px;}
body{font-family:"Microsoft YaHei","微软雅黑",Helvetica,Arial,sans-serif;color:var(--t2);background:var(--bg);line-height:1.7;font-size:14px;}
a{color:inherit;text-decoration:none;transition:color .25s;}
img{display:block;max-width:100%;}
ul,ol{list-style:none;}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px;}
.section{padding:60px 0;}
.section.gray{background:var(--bg-soft);}

/* 区块标题 sec-hd（居中） */
.sec-hd{text-align:center;margin-bottom:40px;}
.sec-tit{font-size:30px;font-weight:700;color:var(--t1);}
.sec-tit strong{color:var(--red);}
.sec-en{display:block;font-size:14px;color:var(--t4);letter-spacing:2px;text-transform:uppercase;margin-top:6px;font-family:Georgia,serif;}
.sec-line{width:60px;height:3px;background:var(--grad);margin:14px auto 0;border-radius:2px;}

/* ===== topbox ===== */
.topbox{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.05);position:relative;z-index:50;}
.lotbox{border-bottom:1px solid var(--bd2);}
.lotbox .wrap{display:flex;align-items:center;justify-content:space-between;height:96px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-ico{width:46px;height:46px;flex-shrink:0;}
.logo-txt{display:flex;flex-direction:column;line-height:1.15;}
.logo-txt b{font-size:24px;font-weight:700;color:var(--red);letter-spacing:1px;}
.logo-txt i{font-size:11px;color:var(--t4);letter-spacing:2px;font-style:normal;font-family:Georgia,serif;margin-top:3px;}
.lot-right{display:flex;align-items:center;gap:18px;}
.lot-tel{display:flex;align-items:center;gap:10px;}
.tel-ico{width:42px;height:42px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;}
.tel-txt{display:flex;flex-direction:column;line-height:1.1;}
.tel-txt span{font-size:12px;color:var(--t4);}
.tel-txt b{font-size:22px;font-weight:700;color:var(--red);font-family:Georgia,"Microsoft YaHei",sans-serif;}
.m-btn{display:none;width:40px;height:34px;flex-direction:column;justify-content:space-between;cursor:pointer;}
.m-btn span{display:block;height:4px;background:var(--red);border-radius:2px;}
/* 移动端抽屉导航：桌面端隐藏，仅手机端显示 */
.m-drawer,.m-mask{display:none;}

/* menubox */
.menubox{background:#fff;}
.menubox > .wrap{display:flex;}
.nav-li{flex:1;text-align:center;position:relative;}
.nav-li > a{display:block;padding:16px 6px;font-size:15px;color:var(--t2);font-weight:500;position:relative;}
.nav-li > a::after{content:"";position:absolute;left:20%;bottom:8px;height:2px;width:0;background:var(--grad);transition:width .3s;}
.nav-li:hover > a::after,.nav-li.active > a::after,.nav-li.cur > a::after{width:60%;}
.nav-li:hover > a,.nav-li.active > a,.nav-li.cur > a{color:var(--red);}
.sub-box{position:absolute;left:0;top:100%;min-width:160px;background:#fff;border-top:3px solid var(--red);box-shadow:0 6px 14px rgba(0,0,0,.1);padding:6px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;z-index:60;}
.has-sub:hover .sub-box{opacity:1;visibility:visible;transform:translateY(0);}
.sub-box a{display:block;padding:10px 18px;font-size:13px;color:var(--t3);text-align:left;}
.sub-box a:hover{color:var(--red);background:var(--bg-soft);}

/* ===== banner ===== */
.banner{position:relative;height:480px;overflow:hidden;background:#1a1a1a;}
.banner-stage{position:absolute;inset:0;}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease-in-out;}
.slide.on{opacity:1;}
.slide img{width:100%;height:100%;object-fit:cover;}
.slide-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,20,20,.72) 0%,rgba(20,20,20,.35) 50%,rgba(20,20,20,.55) 100%);}
.slide-txt{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#fff;padding:0 24px;}
.slide-txt h2{font-size:42px;font-weight:700;letter-spacing:2px;text-shadow:0 2px 12px rgba(0,0,0,.4);}
.slide-txt p{font-size:18px;margin-top:16px;opacity:.95;}
.slide-btn{display:inline-block;margin-top:26px;padding:11px 34px;border-radius:30px;background:var(--grad);color:#fff;font-size:15px;font-weight:500;box-shadow:0 6px 16px rgba(237,120,65,.4);}
.slide-btn:hover{filter:brightness(1.06);transform:translateY(-2px);transition:.25s;}
.ban-dot{position:absolute;left:0;right:0;bottom:24px;display:flex;justify-content:center;gap:10px;z-index:5;}
.ban-dot b{width:30px;height:4px;border-radius:2px;background:rgba(255,255,255,.45);cursor:pointer;transition:.3s;}
.ban-dot b.on{width:46px;background:var(--grad);}
.ban-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.25);color:#fff;font-size:22px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:5;transition:.25s;}
.ban-arrow:hover{background:var(--red);}
.ban-arrow.prev{left:20px;}
.ban-arrow.next{right:20px;}

/* ===== 产品与服务 ===== */
.cat-nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:34px;}
.cat-item{padding:8px 22px;border-radius:24px;background:#fff;border:1px solid var(--bd);color:var(--t3);font-size:14px;cursor:pointer;transition:.25s;}
.cat-item:hover{color:var(--red);border-color:var(--red);}
.cat-item.on{background:var(--red);color:#fff;border-color:var(--red);}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.prod-card{background:#fff;border-radius:6px;overflow:hidden;transition:.3s;}
.prod-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(210,17,38,.16);}
.prod-card .pc-img{aspect-ratio:4/3;overflow:hidden;}
.prod-card .pc-img img{width:100%;height:100%;object-fit:cover;transition:.4s;}
.prod-card:hover .pc-img img{transform:scale(1.06);}
.prod-con{padding:16px 16px 20px;}
.prod-con h3{font-size:17px;color:var(--t1);margin-bottom:8px;font-weight:600;}
.prod-con h3:hover{color:var(--red);}
.prod-con p{font-size:13px;color:var(--t3);line-height:1.6;}
.more-wrap{text-align:center;margin-top:38px;}
.more-btn{display:inline-block;padding:10px 32px;border-radius:24px;border:1px solid var(--red);color:var(--red);font-size:14px;transition:.25s;}
.more-btn:hover{background:var(--red);color:#fff;}

/* ===== 关于 ===== */
.about-row{display:flex;gap:40px;align-items:stretch;}
.about-left{flex:1;}
.al-quo{font-size:54px;line-height:.6;font-family:Georgia,serif;color:var(--orange);}
.about-left h3{font-size:24px;color:var(--t1);margin:10px 0 16px;font-weight:700;}
.about-left p{color:var(--t3);margin-bottom:14px;}
.about-tel{margin:18px 0;}
.about-tel span{display:inline-block;margin-right:24px;color:var(--t2);font-size:15px;}
.about-tel b{color:var(--red);font-size:18px;}
.about-kefu{border-left:3px solid var(--red);padding-left:14px;margin-top:22px;}
.about-kefu h4{font-size:16px;color:var(--t1);margin-bottom:12px;font-weight:600;}
.kefu-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.kefu-item{background:#fff;border:1px solid var(--bd);border-radius:6px;padding:12px 14px;font-size:13px;color:var(--t3);}
.kefu-item b{display:block;color:var(--red);font-size:14px;margin-bottom:4px;}
.about-right{flex:0 0 300px;display:flex;align-items:center;}
.qr-tip{background:var(--grad);border-radius:10px;padding:30px 24px;text-align:center;color:#fff;width:100%;}
.qr-tip h4{font-size:18px;font-weight:600;margin-bottom:6px;}
.qr-tip p{font-size:13px;opacity:.95;margin-bottom:16px;}
.qr-tip img{width:150px;height:150px;margin:0 auto;border-radius:6px;border:4px solid rgba(255,255,255,.5);}
.qr-tip small{display:block;margin-top:12px;font-size:12px;opacity:.9;}

/* ===== 为什么选择 ===== */
.why-row{display:flex;gap:36px;align-items:center;}
.why-pic{flex:0 0 44%;}
.why-pic img{width:100%;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.12);}
.why-con{flex:1;}
.why-tit{font-size:26px;color:var(--t1);font-weight:700;margin-bottom:24px;}
.why-tit strong{color:var(--red);}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.why-item{background:#fff;border:1px solid var(--bd);border-radius:8px;padding:20px;transition:.25s;}
.why-item:hover{border-color:var(--red);box-shadow:0 8px 22px rgba(210,17,38,.12);transform:translateY(-4px);}
.why-ico{width:42px;height:42px;margin-bottom:12px;}
.why-item h4{font-size:16px;color:var(--t1);margin-bottom:6px;font-weight:600;}
.why-item p{font-size:13px;color:var(--t3);line-height:1.6;}

/* ===== 一站式服务 ===== */
.equip-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;}
.equip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.equip-card{background:#fff;border-radius:8px;overflow:hidden;border:1px solid var(--bd2);}
.equip-card .eq-img{aspect-ratio:3/2;overflow:hidden;}
.equip-card .eq-img img{width:100%;height:100%;object-fit:cover;transition:.4s;}
.equip-card:hover .eq-img img{transform:scale(1.06);}
.equip-con{padding:18px 18px 22px;}
.equip-con strong{display:block;font-size:18px;color:var(--t1);font-weight:600;margin-bottom:8px;}
.equip-con em{font-style:normal;font-size:12px;color:var(--orange);letter-spacing:1px;font-family:Georgia,serif;}
.equip-con p{font-size:13px;color:var(--t3);margin:10px 0 14px;line-height:1.6;}

/* ===== 新闻中心 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-col{background:#fff;border:1px solid var(--bd2);border-radius:8px;padding:0 0 18px;}
.news-col-head{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--red);padding:14px 18px;margin-bottom:8px;}
.news-col-head b{font-size:17px;color:var(--t1);font-weight:600;}
.news-col-head em{font-style:normal;font-size:13px;color:var(--orange);font-family:Georgia,serif;}
.news-list{padding:0 18px;}
.news-li{display:block;padding:12px 0;border-bottom:1px dashed var(--bd);}
.news-li:last-child{border-bottom:none;}
.news-li strong{display:block;font-size:14px;color:var(--t2);font-weight:500;line-height:1.5;margin-bottom:6px;}
.news-li:hover strong{color:var(--red);}
.news-li cite{font-style:normal;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;font-size:12px;color:var(--t4);line-height:1.5;}
.news-li i{display:block;font-style:normal;font-size:12px;color:var(--t4);margin-top:6px;}

/* ===== footer ===== */
.foot{background:var(--foot);color:#bbb;padding:50px 0 0;}
.foot-top{display:grid;grid-template-columns:34% 18% 22% 26%;gap:24px;padding-bottom:30px;border-bottom:1px solid #3a3a3a;}
.fcol h3{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;position:relative;padding-left:12px;}
.fcol h3::before{content:"";position:absolute;left:0;top:3px;width:3px;height:16px;background:var(--red);}
.fcol-about p{font-size:13px;color:#999;line-height:1.8;margin-bottom:10px;}
.fcol-about .fa-tel{color:var(--gold-l);font-size:18px;font-weight:600;display:block;margin-top:8px;}
.fcol-nav a,.fcol-pro a{display:block;font-size:13px;color:#999;padding:5px 0;}
.fcol-nav a:hover,.fcol-pro a:hover{color:var(--gold-l);}
.fcol-contact p{font-size:13px;color:#999;line-height:2;}
.fcol-qr{text-align:right;}
.fcol-qr img{width:120px;height:120px;margin-left:auto;border:4px solid #fff;border-radius:6px;}
.fcol-qr p{font-size:12px;color:#999;margin-top:8px;}
.foot-bottom{padding:16px 0;text-align:center;font-size:13px;color:#888;}
.foot-bottom a{color:#888;}
.foot-bottom a:hover{color:var(--gold-l);}
.beian-link{display:inline-block;}

/* backtop */
.backtop{position:fixed;right:24px;bottom:30px;width:46px;height:46px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;box-shadow:0 6px 16px rgba(210,17,38,.4);z-index:80;opacity:0;visibility:hidden;transition:.3s;}
.backtop.show{opacity:1;visibility:visible;}

/* ===== 内页通用 ===== */
.n-banner{position:relative;height:280px;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;}
.n-banner-mask{position:absolute;inset:0;background:linear-gradient(124deg,rgba(210,17,38,.82),rgba(237,120,65,.7));}
.n-banner-txt{position:relative;z-index:2;padding:0 20px;}
.n-banner-txt h1{font-size:38px;font-weight:700;letter-spacing:2px;}
.n-banner-txt i{display:block;font-style:normal;font-size:14px;color:rgba(255,255,255,.85);letter-spacing:3px;margin-top:10px;font-family:Georgia,serif;}
.crumb{background:var(--bg-soft);border-bottom:1px solid var(--bd2);}
.crumb .wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;font-size:13px;color:var(--t4);}
.crumb a:hover{color:var(--red);}
.crumb i{font-style:normal;margin:0 6px;color:var(--t4);}
.crumb span{color:var(--red);}
.content-card{max-width:1100px;margin:40px auto;background:#fff;border:1px solid var(--bd2);border-radius:8px;padding:40px;}
.card-title{text-align:center;margin-bottom:30px;}
.card-title h2{font-size:26px;color:var(--t1);font-weight:700;position:relative;display:inline-block;padding-bottom:14px;}
.card-title h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:54px;height:3px;background:var(--grad);border-radius:2px;}

/* 产品列表 */
.pl-cats{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:30px;}

/* 产品详情 */
.pd-top{display:flex;gap:36px;margin-bottom:36px;}
.pd-img{flex:0 0 44%;}
.pd-img img{width:100%;border-radius:8px;border:1px solid var(--bd);}
.pd-info{flex:1;}
.pd-cat{display:inline-block;padding:4px 14px;border-radius:14px;background:#fdeef0;color:var(--red);font-size:12px;margin-bottom:12px;}
.pd-info h1{font-size:26px;color:var(--t1);font-weight:700;margin-bottom:14px;}
.pd-info .pd-brief{color:var(--t3);line-height:1.8;margin-bottom:20px;font-size:14px;}
.pd-params{width:100%;border-collapse:collapse;margin-bottom:22px;font-size:13px;}
.pd-params th,.pd-params td{border:1px solid var(--bd);padding:9px 14px;text-align:left;}
.pd-params th{background:var(--bg-gray);color:var(--t2);width:140px;font-weight:500;}
.pd-quote{display:inline-block;padding:11px 32px;border-radius:26px;background:var(--grad);color:#fff;font-size:15px;}
.pd-quote:hover{filter:brightness(1.06);}
.pd-block{margin-bottom:30px;}
.pd-block h3{font-size:18px;color:var(--t1);font-weight:600;border-left:4px solid var(--red);padding-left:12px;margin-bottom:16px;}
.pd-block p{color:var(--t3);line-height:1.9;margin-bottom:12px;text-indent:2em;font-size:14px;}
.pd-feat{display:grid;grid-template-columns:1fr 1fr;gap:12px 28px;}
.pd-feat li{position:relative;padding-left:26px;color:var(--t2);font-size:14px;line-height:1.8;}
.pd-feat li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;background:var(--red);color:#fff;border-radius:50%;font-size:12px;text-align:center;line-height:18px;}
.relate{margin-top:10px;}
.relate h3{font-size:18px;color:var(--t1);font-weight:600;border-left:4px solid var(--red);padding-left:12px;margin-bottom:18px;}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}

/* 新闻列表 */
.nl-list{display:flex;flex-direction:column;gap:18px;}
.nl-li{display:flex;gap:22px;background:#fff;border:1px solid var(--bd2);border-radius:8px;padding:18px;transition:.25s;}
.nl-li:hover{box-shadow:0 10px 24px rgba(0,0,0,.08);border-color:var(--bd);}
.nl-li .nl-thumb{flex:0 0 240px;aspect-ratio:4/3;overflow:hidden;border-radius:6px;}
.nl-li .nl-thumb img{width:100%;height:100%;object-fit:cover;transition:.4s;}
.nl-li:hover .nl-thumb img{transform:scale(1.05);}
.nl-body{flex:1;display:flex;flex-direction:column;}
.nl-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.nl-cat{display:inline-block;padding:3px 10px;border-radius:10px;background:#fdeef0;color:var(--red);font-size:12px;}
.nl-date{font-size:13px;color:var(--t4);}
.nl-body h3{font-size:18px;color:var(--t1);font-weight:600;margin-bottom:8px;}
.nl-li:hover h3{color:var(--red);}
.nl-body p{font-size:13px;color:var(--t3);line-height:1.7;flex:1;}

/* 新闻详情 */
.article h1{text-align:center;font-size:26px;color:var(--t1);font-weight:700;margin-bottom:14px;}
.article-meta{text-align:center;font-size:13px;color:var(--t4);padding-bottom:18px;border-bottom:1px solid var(--bd);margin-bottom:24px;}
.article-meta span{margin:0 10px;}
.article-fig{margin:24px 0;text-align:center;}
.article-fig img{max-width:100%;border-radius:8px;margin:0 auto;}
.article p{color:var(--t3);line-height:1.95;margin-bottom:16px;text-indent:2em;font-size:14px;}
.pagef{display:flex;justify-content:space-between;margin-top:30px;padding-top:20px;border-top:1px solid var(--bd);font-size:14px;}
.pagef a{color:var(--t3);}
.pagef a:hover{color:var(--red);}
.returnlist{text-align:center;margin-top:20px;}
.returnlist a{display:inline-block;padding:9px 28px;border:1px solid var(--red);color:var(--red);border-radius:22px;font-size:14px;}
.returnlist a:hover{background:var(--red);color:#fff;}

/* 关于页 */
.intro-row{display:flex;gap:36px;margin-bottom:40px;align-items:center;}
.intro-row .ir-img{flex:0 0 42%;}
.intro-row .ir-img img{width:100%;border-radius:8px;}
.intro-row .ir-con{flex:1;}
.intro-row .ir-con h3{font-size:22px;color:var(--t1);margin-bottom:14px;font-weight:600;border-left:4px solid var(--red);padding-left:12px;}
.intro-row .ir-con p{color:var(--t3);line-height:1.9;margin-bottom:12px;text-indent:2em;font-size:14px;}
.timeline{position:relative;padding:10px 0 10px 28px;border-left:2px solid var(--bd);margin-bottom:40px;}
.timeline .tl-node{position:relative;padding:0 0 24px 20px;}
.timeline .tl-node::before{content:"";position:absolute;left:-34px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--grad);border:3px solid #fff;box-shadow:0 0 0 2px var(--red);}
.timeline .tl-node b{display:block;font-size:18px;color:var(--red);font-weight:700;font-family:Georgia,serif;margin-bottom:4px;}
.timeline .tl-node p{color:var(--t3);font-size:14px;line-height:1.7;}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px;}
.culture-card{background:var(--grad);border-radius:10px;padding:30px 22px;text-align:center;color:#fff;}
.cul-ico{width:56px;height:56px;margin:0 auto 14px;}
.culture-card h4{font-size:18px;font-weight:600;margin-bottom:10px;}
.culture-card p{font-size:13px;opacity:.95;line-height:1.7;}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.team-card{text-align:center;}
.team-card img{width:140px;height:140px;border-radius:50%;object-fit:cover;margin:0 auto;border:4px solid var(--bd);}
.team-card h4{font-size:17px;color:var(--t1);margin-top:12px;font-weight:600;}
.team-card p{font-size:13px;color:var(--t4);}

/* 联系页 */
.cinfo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px;}
.cinfo-item{background:#fff;border:1px solid var(--bd2);border-radius:8px;padding:24px 18px;text-align:center;transition:.25s;}
.cinfo-item:hover{border-color:var(--red);box-shadow:0 8px 20px rgba(0,0,0,.08);}
.ci-ico{width:50px;height:50px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;}
.ci-ico svg{width:26px;height:26px;}
.cinfo-item h4{font-size:15px;color:var(--t1);margin-bottom:6px;font-weight:600;}
.cinfo-item p{font-size:13px;color:var(--t3);line-height:1.6;}
.cform{max-width:680px;margin:0 auto;}
.cform .mf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.mf-input{width:100%;padding:12px 14px;border:1px solid var(--bd);border-radius:6px;font-size:14px;font-family:inherit;}
.mf-input:focus{outline:none;border-color:var(--red);}
.mf-textarea{width:100%;padding:12px 14px;border:1px solid var(--bd);border-radius:6px;font-size:14px;font-family:inherit;min-height:140px;resize:vertical;margin-bottom:16px;}
.mf-textarea:focus{outline:none;border-color:var(--red);}
.mf-submit{display:block;width:100%;padding:13px;border:none;border-radius:6px;background:var(--grad);color:#fff;font-size:15px;cursor:pointer;}
.mf-submit:hover{filter:brightness(1.06);}

/* 兜底图 */
.img-fallback{background:linear-gradient(135deg,#d21126,#ebb13c);}

/* ===== 响应式 ===== */
@media (max-width:992px){
  .prod-grid{grid-template-columns:repeat(2,1fr);}
  .equip-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .why-row{flex-direction:column;}
  .why-pic{flex:none;width:100%;}
  .about-row{flex-direction:column;}
  .about-right{flex:none;width:100%;}
  .qr-tip{max-width:340px;margin:0 auto;}
  .foot-top{grid-template-columns:1fr 1fr;}
  .fcol-qr{text-align:left;}
  .fcol-qr img{margin-left:0;}
  .culture-grid{grid-template-columns:1fr;}
  .team-grid{grid-template-columns:repeat(2,1fr);}
  .cinfo-grid{grid-template-columns:repeat(2,1fr);}
  .pd-top{flex-direction:column;}
  .pd-img{flex:none;}
  .nl-li{flex-direction:column;}
  .nl-li .nl-thumb{flex:none;width:100%;}
  .relate-grid{grid-template-columns:1fr;}
  .intro-row{flex-direction:column;}
  .intro-row .ir-img{flex:none;width:100%;}
}
@media (max-width:768px){
  .lotbox .wrap{height:auto;padding:12px 16px;flex-wrap:wrap;gap:12px;}
  .logo-ico{width:38px;height:38px;}
  .logo-txt b{font-size:20px;}
  .lot-right .lot-tel{display:none;}
  .m-btn{display:flex;}
  .menubox{display:none;}
  .m-drawer{display:block;position:fixed;top:0;left:-80%;width:78%;height:100vh;background:#fff;z-index:200;transition:left .3s;overflow-y:auto;padding:20px 0;box-shadow:2px 0 20px rgba(0,0,0,.2);}
  .m-drawer.open{left:0;}
  .m-drawer .m-nav a{display:block;padding:14px 24px;border-bottom:1px solid var(--bd2);font-size:15px;color:var(--t2);}
  .m-drawer .m-nav a:hover,.m-drawer .m-nav a.active{color:var(--red);background:var(--bg-soft);}
  .m-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:150;display:none;}
  .m-mask.open{display:block;}
  .banner{height:320px;}
  .slide-txt h2{font-size:26px;}
  .slide-txt p{font-size:14px;}
  .section{padding:40px 0;}
  .sec-tit{font-size:24px;}
  .prod-grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .kefu-grid{grid-template-columns:1fr;}
  .foot-top{grid-template-columns:1fr;}
  .team-grid{grid-template-columns:1fr;}
  .cinfo-grid{grid-template-columns:1fr;}
  .cform .mf-row{grid-template-columns:1fr;}
  .pd-feat{grid-template-columns:1fr;}
  .content-card{padding:22px;margin:20px auto;}
  .n-banner{height:200px;}
  .n-banner-txt h1{font-size:26px;}
  .nl-li .nl-thumb{aspect-ratio:16/9;}
  .crumb .wrap{flex-direction:column;gap:6px;align-items:flex-start;}
}