:root{
  --bg:#f6f8fb; --surface:#ffffff; --ink:#0e1726; --muted:#5b6b80;
  --line:#e3e9f1; --brand:#13325c; --brand2:#1f6feb; --accent:#0b9d6b;
  --shadow:0 6px 24px rgba(16,32,60,.08); --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 22px}
img{max-width:100%;display:block}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;flex:0 0 auto}
.brand-logo{height:48px;width:auto;display:block;flex:none}
.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;font-size:14px;letter-spacing:.5px}
.brand-text em{color:var(--brand2);font-style:normal}
.top-nav{display:flex;gap:22px;margin-left:14px;font-weight:600;color:var(--muted)}
.top-nav a{white-space:nowrap}
.top-nav a:hover{color:var(--brand)}
.top-nav a.active{color:var(--brand)}
/* mobile navigation chrome — only rendered ≤860px (see the media query below).
   .nav-panel-head is the drawer's own header (title + close button); it must stay
   hidden on desktop, otherwise "Menu" and the × leak into the horizontal bar. */
.nav-toggle{display:none}
.nav-mask{display:none}
.nav-panel-head{display:none}
body.nav-open{overflow:hidden}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.currency-switch{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.currency-switch button{background:#fff;border:0;padding:7px 11px;font-weight:700;cursor:pointer;color:var(--muted)}
.currency-switch button.active{background:var(--brand);color:#fff}
.vat-sel{padding:8px 10px;border:1px solid var(--line);border-radius:9px;background:#fff;font-weight:700;font-size:13px;color:var(--ink);cursor:pointer;max-width:190px}
.price small{font-weight:600;color:var(--muted)}
.cart-btn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 13px;font-weight:700;cursor:pointer;color:var(--brand)}
.cart-btn:hover{border-color:var(--brand2)}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#0b1f3a,#13325c 55%,#1f6feb);color:#fff;padding:64px 0 56px}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.12;margin:0 0 16px;font-weight:800}
.hero-sub{max-width:680px;font-size:17px;opacity:.92;margin:0 0 26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.3px;margin-bottom:18px}
.hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:18px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stat-value{font-size:26px;font-weight:800;line-height:1.1}
.hero-stat-label{font-size:12.5px;opacity:.75;margin-top:4px}

/* ---------- 主页业务板块 ---------- */
.biz-sec{padding:52px 0}
.biz-sec.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.biz-sec.dark{background:#0b1f3a;color:#cfe0f5}
.biz-head{text-align:center;max-width:720px;margin:0 auto 34px}
.biz-eyebrow{font-size:12px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;color:var(--brand2);margin-bottom:8px}
.biz-head h2{font-size:clamp(22px,3vw,30px);font-weight:800;margin:0 0 8px;color:var(--ink)}
.biz-head p{margin:0;color:var(--muted);font-size:15.5px}
.biz-sec.dark .biz-head h2{color:#fff}
.biz-sec.dark .biz-head p{color:#9fb6d4}
.biz-sec.dark .biz-eyebrow{color:#7fb2ff}

.biz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.biz-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .15s ease,box-shadow .15s ease}
.biz-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(16,32,60,.13)}
.biz-sec.dark .biz-card{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);box-shadow:none}
.biz-icon{width:46px;height:46px;border-radius:12px;background:#eaf1ff;color:var(--brand);display:grid;place-items:center;flex-shrink:0}
.biz-icon svg{width:24px;height:24px}
.biz-card h3{margin:0;font-size:18px;font-weight:800;color:var(--ink)}
.biz-sec.dark .biz-card h3{color:#fff}
.biz-card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.62}
.biz-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.biz-tags span{background:#f3f6fb;border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;color:var(--muted)}
.biz-sec.dark .biz-tags span{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);color:#bcd2ee}
.biz-more{margin-top:12px;font-size:13.5px;font-weight:700;color:var(--brand2)}
.biz-sec.dark .biz-more{color:#7fb2ff}

/* OEM 规格表：单列 key-value，避免窄卡片里换行拥挤 */
.spec-table{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:2px}
.spec-table li{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:8px 11px;background:#f8fafd;border-radius:8px;font-size:13.5px;line-height:1.45}
.spec-table li span{color:var(--muted);flex-shrink:0}
.spec-table li strong{font-weight:700;color:var(--ink);text-align:right}

/* 能力编号卡 */
/* 能力体系 / OEM 行业应用：桌面三列，同排卡片等高 */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.cap-no{font-size:13px;font-weight:800;color:var(--brand2);letter-spacing:1px;margin-bottom:8px}
.cap-card h4{margin:0 0 7px;font-size:16.5px;font-weight:800;color:var(--ink)}
.cap-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.6}

/* 流程步骤 */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;counter-reset:step}
.flow-step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;text-align:center;box-shadow:var(--shadow)}
.flow-no{width:44px;height:44px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-weight:800;font-size:17px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.flow-step h4{margin:0 0 6px;font-size:16px;font-weight:800;color:var(--ink)}
.flow-step p{margin:0;font-size:13.5px;color:var(--muted)}

/* 场景标签墙 */
.scene-wall{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:900px;margin:0 auto}
.scene-wall a{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-weight:700;font-size:14.5px;color:var(--ink);box-shadow:var(--shadow)}
.scene-wall a:hover{border-color:var(--brand2);color:var(--brand2)}

/* 承诺条 */
.promise{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.promise-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px 20px}
.promise-item svg{width:24px;height:24px;color:#7fb2ff;margin-bottom:10px}
.promise-item h4{margin:0 0 6px;font-size:16px;font-weight:800;color:#fff}
.promise-item p{margin:0;font-size:13.5px;color:#9fb6d4;line-height:1.6}

/* ---------- 能力矩阵：分层技术表 ---------- */
.matrix{display:flex;flex-direction:column;gap:14px}
.matrix-row{display:grid;grid-template-columns:220px 1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.matrix-label{padding:22px 20px;background:#f3f6fb;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;gap:7px}
.matrix-label svg{width:22px;height:22px;color:var(--brand2)}
.matrix-label b{font-size:16px;font-weight:800;color:var(--ink);line-height:1.25}
.matrix-label span{font-size:12.5px;color:var(--muted);line-height:1.45}
.matrix-items{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));}
.matrix-cell{padding:18px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:5px}
.matrix-cell:last-child{border-right:none}
.matrix-cell b{font-size:14.5px;font-weight:800;color:var(--brand)}
.matrix-cell span{font-size:13px;color:var(--muted);line-height:1.5}

/* ---------- 行业方案卡 ---------- */
/* 行业解决方案：桌面三列 */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.industry-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:11px;transition:transform .15s ease,box-shadow .15s ease}
.industry-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(16,32,60,.13)}
.industry-top{display:flex;align-items:center;gap:11px}
.industry-icon{width:40px;height:40px;border-radius:11px;background:#eaf1ff;color:var(--brand);display:grid;place-items:center;flex-shrink:0}
.industry-icon svg{width:21px;height:21px}
.industry-card h3{margin:0;font-size:17px;font-weight:800;color:var(--ink)}
.industry-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.62}
.industry-use{margin-top:auto;padding-top:11px;border-top:1px dashed var(--line);font-size:13px;color:var(--brand);font-weight:700}

/* ---------- 指标条（浅色） ---------- */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.metric{padding:26px 20px;text-align:center;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric-value{font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:-.5px}
.metric-unit{font-size:15px;font-weight:700;color:var(--brand2);margin-left:2px}
.metric-label{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- 资质 / 合规徽章 ---------- */
.cert-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:14px}
.cert{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:18px 16px;text-align:center;transition:border-color .15s ease,background .15s ease}
.cert:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.08)}
.cert b{display:block;font-size:14.5px;font-weight:800;color:#fff;margin-bottom:5px;letter-spacing:.2px}
.cert span{font-size:12px;color:#9fb6d4;line-height:1.45;display:block}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:linear-gradient(135deg,#0b1f3a,#13325c);color:#fff;padding:52px 0;text-align:center}
.cta-band h2{font-size:clamp(22px,3vw,30px);margin:0 0 12px;font-weight:800}
.cta-band p{max-width:620px;margin:0 auto 26px;color:#bcd2ee;font-size:15.5px}
.cta-band .hero-cta{justify-content:center}
/* cta-light: light band identical to the home page CTA */
.cta-band.cta-light{background:linear-gradient(180deg,#e3ecf8 0%,#f7fafd 100%);color:var(--ink);border-top:1px solid var(--line)}
.cta-band.cta-light h2{color:var(--ink)}
.cta-band.cta-light p{color:var(--muted)}
.cta-band.cta-light .btn-primary{background:var(--brand);color:#fff}
.cta-band.cta-light .btn-primary:hover{background:var(--brand2)}
.cta-band.cta-light .btn-ghost,.cta-band.cta-light .btn-ghost-ink{background:#fff;border-color:var(--line);color:var(--ink)}
.cta-band.cta-light .btn-ghost:hover,.cta-band.cta-light .btn-ghost-ink:hover{background:#fff;border-color:var(--brand);color:var(--brand)}

/* ---------- 响应式补充 ---------- */
@media (max-width:860px){
  .matrix-row{grid-template-columns:1fr}
  .matrix-label{border-right:none;border-bottom:1px solid var(--line)}
}
.btn{display:inline-block;padding:12px 22px;border-radius:11px;font-weight:700;cursor:pointer;border:1px solid transparent}
.btn-primary{background:#fff;color:var(--brand)}
.btn-primary:hover{background:#eaf1ff}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-badges{list-style:none;display:flex;gap:10px;flex-wrap:wrap;padding:0;margin:30px 0 0}
.hero-badges li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:7px 13px;border-radius:999px;font-size:13px;font-weight:600}

/* layout */
main{padding:38px 0 60px;min-height:50vh}
main.container{padding-top:30px}
.section-title{font-size:26px;font-weight:800;margin:0 0 6px}
.section-desc{color:var(--muted);margin:0 0 22px}
.breadcrumb{color:var(--muted);font-size:14px;margin:0 0 18px}
.breadcrumb a:hover{color:var(--brand)}

/* catalog toolbar */
.toolbar{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:24px}
.search{flex:1;min-width:220px;position:relative}
.search input{width:100%;padding:11px 14px 11px 38px;border:1px solid var(--line);border-radius:11px;font-size:15px;background:#fff}
.search::before{content:"\1F50D";position:absolute;left:13px;top:50%;transform:translateY(-50%);opacity:.5}
.chip{border:1px solid var(--line);background:#fff;padding:8px 14px;border-radius:999px;font-weight:600;cursor:pointer;color:var(--muted);font-size:14px}
.chip:hover{border-color:var(--brand2)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* brand + category filter rows (brand sits above category) */
.filters{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.filter-line{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}
.filter-label{flex:none;min-width:72px;padding:9px 0 0;font-size:11.5px;font-weight:800;letter-spacing:.7px;text-transform:uppercase;color:var(--muted)}
.fchips{display:flex;gap:8px;flex-wrap:wrap}
.chip .cnt{margin-left:6px;font-size:12px;font-weight:700;opacity:.5}
.chip.active .cnt{opacity:.85}
/* brand selection uses the lighter blue so it stays distinct from the navy category chip */
.fchips.brands .chip{border-color:#d7e3f5}
.fchips.brands .chip.active{background:var(--brand2);border-color:var(--brand2)}
.fchips.brands .chip:hover{border-color:var(--brand2)}
/* version selector on product detail */
.vsel{display:flex;align-items:center;gap:12px;margin:0 0 14px;flex-wrap:wrap}
.vsel-label{flex:none;min-width:60px;font-size:11.5px;font-weight:800;letter-spacing:.7px;text-transform:uppercase;color:var(--muted)}
.vbtns{display:flex;gap:8px;flex-wrap:wrap}
.vbtn{border:1px solid var(--line);background:#fff;padding:8px 16px;border-radius:999px;font-weight:600;cursor:pointer;color:var(--muted);font-size:14px}
.vbtn:hover{border-color:var(--brand2)}
.vbtn.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* brand strip on the Products landing page */
.brand-strip{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;max-width:980px;margin:0 auto}
.brand-strip .chip{padding:10px 18px;font-size:14.5px;background:var(--surface);box-shadow:var(--shadow)}
/* IMPORTANT: .brand-strip .chip has the same specificity (0,2,0) as .chip.active and
   comes later, so it used to reset the active chip's background to white while the
   white text stayed — an invisible "blank" pill. (0,3,0) below wins cleanly. */
.brand-strip .chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.brand-strip .chip:hover{border-color:var(--brand2)}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(16,32,60,.14)}
/* 主图为 1000x1000 纯白底正方形，容器同步 1:1 白底，避免灰底显脏 */
.card-img{aspect-ratio:1/1;background:#fff;display:grid;place-items:center;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:contain;padding:0}
.card-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-cat{font-size:12px;font-weight:700;color:var(--brand2);text-transform:uppercase;letter-spacing:.4px}
.brand-tag{display:inline-block;background:#eef3fb;color:var(--brand);border-radius:6px;padding:1px 7px;font-weight:800;font-size:11.5px;letter-spacing:.3px;text-transform:none;vertical-align:1px}
.card-name{font-size:17px;font-weight:800;margin:0}
.card-model{font-size:13px;color:var(--muted);font-weight:600}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
.price{font-size:18px;font-weight:800;color:var(--brand)}
.price small{font-size:12px;color:var(--muted);font-weight:600}
.card .add{background:var(--brand);color:#fff;border:0;border-radius:9px;padding:9px 12px;font-weight:700;cursor:pointer}
.card .add:hover{background:var(--brand2)}
.tag-feat{position:absolute;background:var(--accent);color:#fff;font-size:11px;font-weight:800;padding:4px 9px;border-radius:0 0 8px 0}

/* detail */
.detail{display:grid;grid-template-columns:1.1fr 1fr;gap:34px}
.gallery .main-img{border:1px solid var(--line);border-radius:var(--radius);background:#fff;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden}
.gallery .main-img img{width:100%;height:100%;object-fit:contain;padding:0}
.thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.thumbs img{width:64px;height:64px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff;padding:5px;cursor:pointer}
.thumbs img.active{border-color:var(--brand2);box-shadow:0 0 0 2px rgba(31,111,235,.25)}
.detail h1{font-size:30px;margin:0 0 6px}
.detail .model{color:var(--muted);font-weight:700;margin:0 0 14px}
.detail .price{font-size:26px;margin:0 0 16px}
.spec-list{list-style:none;padding:0;margin:18px 0;display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
.spec-list li{background:#f3f6fb;border-radius:9px;padding:9px 12px;font-size:14px}
.detail-actions{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.btn-lg{padding:13px 24px;font-size:16px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{filter:brightness(1.05)}
.btn-line{background:#fff;border:1px solid var(--line);color:var(--brand)}
.btn-line:hover{border-color:var(--brand2)}
.prose{max-width:760px;color:#23324a}
.prose p{margin:0 0 14px}

/* cart drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(8,18,34,.45);z-index:60;display:none}
.drawer-mask.open{display:block}
.drawer{position:fixed;top:0;right:0;height:100%;width:380px;max-width:92vw;background:#fff;z-index:61;box-shadow:-10px 0 40px rgba(8,18,34,.2);transform:translateX(100%);transition:transform .2s ease;display:flex;flex-direction:column}
.drawer.open{transform:none}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head h3{margin:0;font-size:18px}
.drawer-body{flex:1;overflow:auto;padding:14px 20px}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line)}
.cart-row{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.cart-row img{width:54px;height:54px;object-fit:contain;background:#fff;border-radius:8px;padding:2px}
.cart-row .nm{font-size:14px;font-weight:700;flex:1}
.cart-row .rm{color:#c0392b;background:none;border:0;cursor:pointer;font-size:13px;font-weight:700}
.empty{color:var(--muted);text-align:center;padding:40px 0}
.form-row{margin-bottom:12px}
.form-row label{display:block;font-size:13px;font-weight:700;margin-bottom:5px}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit}
.note{background:#f3f6fb;border-radius:10px;padding:12px 14px;font-size:13px;color:var(--muted);margin-top:10px}

/* footer */
.site-footer{background:#0b1f3a;color:#cfe0f5;margin-top:40px;padding:46px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px}
.site-footer .brand{color:#fff}
.site-footer h4{color:#fff;margin:0 0 12px;font-size:15px}
.site-footer a{display:block;color:#bcd2ee;padding:4px 0;font-size:14px}
.site-footer a:hover{color:#fff}
.footer-note{font-size:13px;color:#9fb6d4;margin:8px 0}
.site-footer .footer-note a{display:inline;padding:0}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;font-size:12px;color:#9fb6d4}

.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);background:var(--brand);color:#fff;padding:12px 20px;border-radius:11px;font-weight:700;opacity:0;pointer-events:none;transition:.2s;z-index:80}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 中等宽度页头（861–1140px）：先做空间预算，别让 flex 乱压 ----------
   容器内容宽度上限 = 1200 - 2×22 = 1156px，而页头的硬需求是
     logo(176) + 5 个链接(382) + 工具行(~400) ≈ 994px（还没算间隙）。
   在 861–1140px 之间空间不足，原先浏览器只能去压缩 flex 子项，后果是
   "OEM / ODM" 从 89px 被挤到 38px、链接内文字折成 3 行、导航盒高 77px
   溢出 72px 的页头（文字顶部跑到 y=-2），logo 也被压扁变形。
   这里主动收紧间距、字号与控件内边距，把需要压掉的宽度提前让出来。 */
@media (max-width:1140px){
  .header-inner{gap:12px}
  .brand-logo{height:40px}
  .top-nav{gap:14px;margin-left:6px;font-size:14.5px}
  .header-tools{gap:9px}
  .vat-sel{max-width:150px;font-size:12.5px;padding:7px 8px}
  .currency-switch button{padding:6px 9px;font-size:12.5px}
  .cart-btn{padding:7px 11px;font-size:12.5px}
}

@media (max-width:860px){
  .detail{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}

  /* ---------- 移动端/平板导航 ----------
     桌面横排导航在 ≤860px 放不下（5 个链接 + logo + 工具行 ≈900px），原先这里
     直接 display:none —— 结果手机上完全没有导航入口。现在改成：同一个 .top-nav
     元素变成左侧滑出抽屉，由汉堡按钮控制。因为复用一个元素，桌面与手机的菜单
     永远不会走样。

     注意：.site-header 有 backdrop-filter，而 backdrop-filter 会让该元素成为
     后代的 containing block —— position:fixed 的抽屉会退化成"只在 header 高度内
     定位"。所以这里必须把 backdrop-filter 关掉（背景本就是 92% 不透明白，视觉
     几乎无差别），抽屉才能以视口定位。 */
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none}

  .nav-toggle{display:inline-flex;margin-left:auto;flex-direction:column;align-items:center;
    justify-content:center;gap:4px;width:42px;height:42px;padding:0;
    border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer;
    -webkit-tap-highlight-color:transparent}
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand);
    transition:transform .2s ease,opacity .2s ease}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  .nav-mask{display:none}
  .nav-mask.open{display:block;position:fixed;inset:0;background:rgba(8,18,34,.45);z-index:58}

  .top-nav{position:fixed;top:0;bottom:0;left:0;width:min(84vw,320px);max-width:320px;
    margin:0;padding:14px 14px 26px;
    flex-direction:column;flex-wrap:nowrap;align-items:stretch;gap:2px;
    background:#fff;color:var(--ink);font-size:17px;font-weight:700;
    box-shadow:8px 0 40px rgba(8,18,34,.18);
    z-index:59;overflow-y:auto;overscroll-behavior:contain;
    transform:translateX(-104%);visibility:hidden;
    /* switching visibility instantly on open, but only after the slide-out
       finishes on close, keeps the closed panel out of the tab order AND the
       accessibility tree (visibility:hidden does both) without a jarring cut */
    transition:transform .22s ease,visibility 0s linear .25s}
  .top-nav.open{transform:none;visibility:visible;transition:transform .22s ease,visibility 0s}

  .nav-panel-head{display:flex;align-items:center;justify-content:space-between;
    padding:0 2px 10px 12px;margin-bottom:8px;border-bottom:1px solid var(--line);
    color:var(--muted);font-size:11.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
  .nav-close{width:36px;height:36px;border:0;border-radius:10px;background:#f2f5fa;color:var(--brand);
    font-size:22px;line-height:1;cursor:pointer;display:grid;place-items:center}
  .nav-close:hover{background:#e6edf8}

  .top-nav a{padding:14px 12px;border-radius:11px;border-bottom:1px solid var(--line);color:var(--ink)}
  .top-nav a:last-child{border-bottom:0}
  .top-nav a:hover,.top-nav a.active{background:#eef3fb;color:var(--brand)}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .spec-list{grid-template-columns:1fr}
  .header-inner{height:62px}
  .brand-logo{height:38px}
  /* stack the filter label above its chips so the pills keep full width */
  .filter-line{flex-direction:column;gap:7px}
  .filter-label{min-width:0;padding:0}
}

/* ---------- 三列板块响应式（行业方案 / 能力体系） ----------
   桌面 ≥1080px 三列；平板 641~1079px 两列；手机 ≤640px 单列 */
@media (max-width:1079px){
  .cap-grid,.industry-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .cap-grid,.industry-grid{grid-template-columns:1fr}
}

/* ---------- 窄屏页头：工具行换行而不是横向溢出 ----------
   原先 logo + VAT 下拉 + 币种 + Enquiry 挤在一行，≤640px 时每页都会产生
   横向滚动条（经 390px 实测右侧溢出 36px）。改为工具行独占第二行。 */
@media (max-width:640px){
  .header-inner{height:auto;min-height:60px;flex-wrap:wrap;gap:10px;padding-top:9px;padding-bottom:9px}
  .brand-logo{height:34px}
  .header-tools{margin-left:0;width:100%;gap:8px}
  .vat-sel{flex:1 1 110px;width:auto;min-width:0;max-width:none;font-size:12.5px;padding:7px 8px}
  .currency-switch{flex:none}
  .currency-switch button{padding:7px 9px;font-size:12.5px}
  .cart-btn{flex:none;padding:7px 10px;font-size:12.5px;white-space:nowrap}
}

/* ============================================================
   内容宽度对齐 ShopXO .am-container（实测三档断点一致）
   >=1260 : 1200 / padding 0
   1025-1259 : 1000 / padding 0
   <=1024 : 100% / padding 0 12px
   ============================================================ */
.container{max-width:1200px;padding-left:0;padding-right:0}
@media (max-width:1259px){
  .container{max-width:1000px}
}
@media (max-width:1024px){
  .container{max-width:100%;padding-left:12px;padding-right:12px}
}

/* 中屏收紧头部工具区，消除 ~900px 横向溢出（ShopXO 该宽度无溢出） */
@media (max-width:980px){
  .header-tools{gap:6px}
  .currency-switch button{padding:6px 7px;font-size:12px}
  .cart-btn{padding:7px 9px;font-size:12px}
}
@media (max-width:860px){
  .vat-sel{display:none}
}

/* 3-up card grid — Agent page "Everything a component line needs to be sellable" */
.biz-grid.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:860px){.biz-grid.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.biz-grid.grid-3{grid-template-columns:1fr}}

/* 2-up card grid — Agent page "Four kinds of agent" / "Four steps, no long form" */
.cap-grid.grid-2,.industry-grid.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:600px){.cap-grid.grid-2,.industry-grid.grid-2{grid-template-columns:1fr}}