:root{
  --teal:#2DC5C6;
  --teal-deep:#0F6E56;
  --teal-ink:#085041;
  --teal-bg:#E1F5EE;
  --teal-bg2:#EAF7F5;
  --ink:#2C2C2A;
  --ink2:#444441;
  --muted:#888780;
  --line:#D3D1C7;
  --paper:#F7F5F0;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--ink2);background:#fff;line-height:1.75;font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--teal-deep);text-decoration:none}
a:hover{color:var(--teal-ink)}
ul,ol{list-style:none}
img{display:block;max-width:100%}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{color:var(--ink);line-height:1.4;font-weight:600}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-seal{width:38px;height:38px;border-radius:6px;background:var(--teal);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:15px;letter-spacing:1px}
.logo-name{font-size:18px;font-weight:600;color:var(--ink);line-height:1.25}
.logo-name small{display:block;font-size:10.5px;font-weight:400;color:var(--muted);letter-spacing:1.5px}
.nav{display:flex;align-items:center;gap:22px}
.nav a{font-size:14px;color:var(--ink2)}
.nav a:hover{color:var(--teal-deep)}
.nav .btn{margin-left:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--teal);color:#fff;border:none;cursor:pointer;border-radius:22px;font-size:14px;font-weight:500;padding:10px 26px;transition:background .2s;font-family:inherit}
.btn:hover{background:var(--teal-deep);color:#fff}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--teal-deep);border:1px solid var(--teal);cursor:pointer;border-radius:22px;font-size:14px;font-weight:500;padding:9px 26px;font-family:inherit;transition:all .2s}
.btn-ghost:hover{background:var(--teal-bg2)}
.mnav{display:none;position:relative}
.mnav summary{list-style:none;cursor:pointer;font-size:14px;color:var(--ink2);border:1px solid var(--line);border-radius:18px;padding:6px 16px}
.mnav summary::-webkit-details-marker{display:none}
.mnav-panel{position:absolute;right:0;top:44px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;min-width:180px;box-shadow:0 6px 24px rgba(0,0,0,.08)}
.mnav-panel a{display:block;padding:9px 14px;font-size:14px;border-radius:8px;color:var(--ink2)}
.mnav-panel a:hover{background:var(--teal-bg)}

/* ---------- hero ---------- */
.hero{padding:72px 0 64px;background:#fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.kicker{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.kicker i{width:4px;height:18px;background:var(--teal);border-radius:2px}
.kicker span{font-size:13px;color:var(--teal-deep);letter-spacing:3px}
.hero h1{font-size:38px;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:var(--teal-deep)}
.hero-rule{width:64px;height:4px;background:var(--teal);border-radius:2px;margin:20px 0}
.hero p{font-size:15.5px;max-width:540px}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 30px}
.pill{border:1px solid #9FE1CB;background:var(--teal-bg);color:var(--teal-deep);font-size:13px;border-radius:16px;padding:5px 16px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px}
.hero-note{margin-top:18px;font-size:12.5px;color:var(--muted)}
.hero-visual svg{width:100%;height:auto}

/* ---------- data bar ---------- */
.databar{background:var(--paper);padding:36px 0}
.databar-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{text-align:center;padding:0 12px;border-left:1px solid var(--line)}
.metric:first-child{border-left:none}
.metric b{display:block;font-size:23px;font-weight:600;color:var(--teal-deep);letter-spacing:.5px}
.metric span{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}

/* ---------- section ---------- */
.section{padding:72px 0}
.section.alt{background:var(--teal-bg2)}
.section.paper{background:var(--paper)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head.center{justify-content:center;text-align:center}
.sec-head h2{font-size:26px}
.sec-head .more{font-size:13px;color:var(--teal-deep);white-space:nowrap}
.sec-head .sub{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- breadcrumb & page hero ---------- */
.crumb{font-size:12.5px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--teal-deep)}
.crumb span{margin:0 6px}
.page-hero{padding:28px 0 44px}
.page-hero h1{font-size:32px;margin-bottom:14px}
.page-hero .lead{font-size:15.5px;max-width:800px}
.page-hero .pills{margin:22px 0 0}

/* ---------- cards ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-grid.two{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s,transform .2s;display:flex;flex-direction:column}
.card:hover{border-color:var(--teal);transform:translateY(-3px)}
.card-top{height:3px;background:var(--teal)}
.card-img{height:180px;background:var(--teal-bg);display:flex;align-items:center;justify-content:center;color:#8FBFB4;font-size:13px;letter-spacing:2px;text-align:center;padding:0 12px}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;margin-bottom:8px}
.card-body p{font-size:13.5px;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}
.tag{font-size:12px;color:var(--teal-deep);background:var(--teal-bg);border-radius:4px;padding:3px 10px}
.tag.solid{background:var(--teal);color:#fff}
.card-link{font-size:13.5px;font-weight:500;margin-top:auto}

/* ---------- process ---------- */
.proc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.proc-grid.five{grid-template-columns:repeat(5,1fr)}
.proc{background:#fff;border:1px solid #9FE1CB;border-radius:10px;padding:22px 20px}
.proc b{display:inline-flex;width:30px;height:30px;border-radius:15px;background:var(--teal-bg);color:var(--teal-deep);align-items:center;justify-content:center;font-size:14px;margin-bottom:10px}
.proc h3{font-size:16px;margin-bottom:6px}
.proc p{font-size:12.5px;color:var(--muted)}
.proc-note{margin-top:18px;font-size:12.5px;color:var(--muted)}

/* ---------- factory / gallery ---------- */
.factory-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.factory p{margin-bottom:14px}
.factory ul{margin:18px 0 26px}
.factory li{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:6px 0}
.factory li i{flex:none;width:6px;height:6px;border-radius:3px;background:var(--teal);margin-top:9px}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.ph{background:#E1F0EC;border:1px dashed #9FE1CB;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#8FBFB4;font-size:13px;letter-spacing:1px;text-align:center;padding:12px}
.ph.tall{grid-row:span 2;min-height:320px}
.ph.small{height:153px}

/* ---------- industries ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ind{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px 24px;transition:border-color .2s}
.ind:hover{border-color:var(--teal)}
.ind h3{font-size:16px;margin-bottom:6px}
.ind h3::before{content:"";display:inline-block;width:8px;height:8px;background:var(--teal);border-radius:2px;margin-right:10px;vertical-align:2px}
.ind p{font-size:13px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);padding:20px 4px}
.faq-item h3{font-size:15.5px;color:var(--ink)}
.faq-item h3::before{content:"Q";color:var(--teal);margin-right:12px}
.faq-item p{font-size:14px;margin-top:8px;padding-left:27px}

/* ---------- prose（文章/长文） ---------- */
.prose{max-width:820px;margin:0 auto}
.prose h2{font-size:22px;margin:36px 0 14px;padding-left:14px;border-left:4px solid var(--teal)}
.prose h3{font-size:17px;margin:26px 0 10px}
.prose p{margin-bottom:14px;font-size:15px}
.prose ul,.prose ol{margin:0 0 16px 4px}
.prose li{position:relative;padding-left:18px;margin-bottom:8px;font-size:15px}
.prose li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:3px;background:var(--teal)}
.prose .note{background:var(--teal-bg2);border-left:3px solid var(--teal);padding:14px 18px;border-radius:0 8px 8px 0;font-size:14px;color:var(--ink2);margin:18px 0}
.article-meta{font-size:13px;color:var(--muted);margin-bottom:24px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--teal-bg);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:24px;margin-bottom:8px}
.cta-inner p{font-size:14px;color:var(--muted)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px}
.contact-info h2{font-size:26px;margin-bottom:16px}
.contact-info p{margin-bottom:10px}
.wechat-box{display:flex;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:22px}
.qr{flex:none;width:110px;height:110px;border:1px dashed var(--teal);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#8FBFB4;font-size:12px;text-align:center;line-height:1.5;padding:6px}
.wechat-box b{display:block;font-size:14.5px;color:var(--ink);margin-bottom:4px}
.wechat-box span{font-size:12.5px;color:var(--muted)}
.info-list{margin-top:26px}
.info-list li{font-size:14px;padding:10px 0;border-bottom:1px solid var(--line);display:flex;gap:14px}
.info-list li b{flex:none;width:78px;color:var(--muted);font-weight:400}
.form{background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px}
.form h3{font-size:18px;margin-bottom:6px}
.form .hint{font-size:12.5px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 14px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff;outline:none;transition:border-color .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal)}
.field textarea{resize:vertical;min-height:88px}
.form .btn{width:100%;border-radius:8px;padding:13px 0;font-size:15px;margin-top:6px}
.form-msg{display:none;margin-top:14px;font-size:13px;color:var(--teal-deep);background:var(--teal-bg);border-radius:8px;padding:10px 14px}

/* ---------- footer ---------- */
.footer{background:var(--paper);border-top:1px solid var(--line);padding:40px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;margin-bottom:26px}
.footer h4{font-size:14px;margin-bottom:10px}
.footer li{font-size:13px;color:var(--muted);padding:3px 0}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--teal-deep)}
.beian{border-top:1px solid var(--line);padding-top:18px;text-align:center;font-size:12.5px;color:#55635e;line-height:1.95}
.beian p{margin:0}
.beian .biz{font-size:12px;color:#839490}
.beian .sep{margin:0 7px;opacity:.55}
.beian a{margin:0 2px;color:inherit;text-decoration:underline;text-underline-offset:2px}
.beian a:hover{color:var(--teal-deep)}

/* ---------- 产品规格表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:4px;background:#fff}
.spec-table{width:100%;border-collapse:collapse;min-width:760px;font-size:14px}
.spec-table.kv{min-width:0}
.spec-table.kv th{width:26%;white-space:normal}
.spec-table.kv td{width:74%}
.spec-table caption{caption-side:top;text-align:left;padding:16px 18px 12px;font-size:15px;font-weight:600;color:var(--ink)}
.spec-table th{text-align:left;font-weight:500;font-size:12.5px;letter-spacing:.5px;color:var(--muted);background:var(--paper);padding:10px 18px;border-bottom:1px solid var(--line);white-space:nowrap}
.spec-table td{padding:13px 18px;border-bottom:1px solid #EDEBE3;color:var(--ink2);vertical-align:top}
.spec-table tbody tr:last-child td{border-bottom:none}
.spec-table tbody tr:hover{background:#FAFAF7}
.spec-table .c-name{font-weight:500;color:var(--ink);width:34%}
.spec-table .c-price{white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--teal-deep);font-weight:600}
.spec-table .c-sold{white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}
.spec-table .c-form,.spec-table .c-scene{font-size:13.5px;color:var(--ink2)}
.table-note{margin-top:12px;font-size:12.5px;color:var(--muted);line-height:1.7}
.table-note a{color:var(--teal-deep)}
.store-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:4px;overflow:hidden;margin-top:8px}
.store-facts div{background:#fff;padding:18px 20px}
.store-facts b{display:block;font-size:24px;color:var(--teal-deep);font-weight:600;line-height:1.3;font-variant-numeric:tabular-nums}
.store-facts span{font-size:12.5px;color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .nav{display:none}
  .mnav{display:block}
}
@media (max-width:900px){
  .hero-grid,.factory-grid,.contact-grid{grid-template-columns:1fr}
  .databar-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:none;padding:12px 0}
  .prod-grid,.prod-grid.two,.ind-grid{grid-template-columns:1fr 1fr}
  .proc-grid{grid-template-columns:1fr 1fr}
  .proc-grid.five{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .store-facts{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
  .page-hero h1{font-size:26px}
}
@media (max-width:560px){
  .prod-grid,.prod-grid.two,.ind-grid,.proc-grid,.proc-grid.five{grid-template-columns:1fr}
  .hero{padding:48px 0}
  .hero h1{font-size:26px}
  .section{padding:52px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
}