/* =========================================================
   Donghuang Hardware — Global Design System (SSOT)
   Extracted from README §12 "整站设计规范" and the homepage
   prototype. Every page links to this file. No hardcoded
   colors/sizes elsewhere. Page-specific classes appended at
   the bottom.
   ========================================================= */
:root{
  --brand:#0a5bd6; --brand-dark:#0846a5; --brand-light:#e8f0fe;
  --text:#1a1f2c; --text-secondary:#4b5567;
  --bg:#ffffff; --bg-soft:#f5f7fb; --border:#d8dee9;
  --success:#047857; --warning:#d97706;
  --deep:#05132d;
  --maxw:1200px;
  --radius:10px; --radius-sm:6px; --radius-img:8px; --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow:0 8px 24px rgba(10,27,66,.10);
  --shadow-lg:0 18px 45px rgba(10,27,66,.14);
  --header-h:72px;
  --font:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:92%}
section{padding:72px 0}
.bg-soft{background:var(--bg-soft)}
h1,h2,h3{line-height:1.2;color:var(--text)}
h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;line-height:1.12}
h2{font-size:2rem;font-weight:800;margin-bottom:12px}
h3{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.lead{font-size:clamp(1.05rem,2.2vw,1.25rem);color:var(--text-secondary);max-width:760px}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-head .eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.skip{position:absolute;left:-999px;top:0;background:var(--brand);color:#fff;padding:8px 14px;z-index:2000;border-radius:0 0 6px 0}
.skip:focus{left:0}

/* Buttons */
.btn{display:inline-block;font-weight:700;font-size:.95rem;padding:13px 26px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:.18s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-dark);box-shadow:var(--shadow)}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-light)}
.btn-lg{padding:15px 32px;font-size:1rem}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:var(--brand-light)}

/* Badges */
.badge{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:5px 12px;border-radius:var(--radius-pill)}
.badge-blue{background:var(--brand-light);color:var(--brand-dark)}
.badge-success{background:#e6f4ee;color:var(--success)}
.badge-warn{background:#fdf0e1;color:var(--warning)}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:rgba(255,255,255,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:1000}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);font-size:1.05rem}
.brand .logo-mark{width:34px;height:34px;border-radius:8px;background:var(--brand);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.9rem}
.brand small{display:block;font-weight:500;font-size:.7rem;color:var(--text-secondary);letter-spacing:.04em}
.nav-main{display:flex;align-items:center;gap:26px}
.nav-main a{color:var(--text-secondary);font-weight:600;font-size:.92rem}
.nav-main a:hover{color:var(--brand);text-decoration:none}
.nav-main a.active{color:var(--brand)}
.header-cta{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:6px;width:42px;height:40px;cursor:pointer;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
.menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}

/* Hero (home & market pages) */
.hero{position:relative;margin-top:var(--header-h);min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:
    linear-gradient(100deg, rgba(5,19,45,.96), rgba(5,19,45,.25)),
    repeating-linear-gradient(135deg, rgba(255,255,255,.04) 0 2px, transparent 2px 22px),
    linear-gradient(160deg,#0b2a5e,#05132d);
  z-index:0}
.hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:60px}
.hero-kicker{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#9fc0f5;margin-bottom:18px}
.hero h1{max-width:840px;color:#fff}
.hero h1 .hl{color:#7fb2ff}
.hero .lead{color:#c8d8ef;margin:22px 0 30px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:.9rem;color:#dbe7f8}
.hero-trust span{display:flex;align-items:center;gap:8px}
.hero-trust b{color:#fff}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(10,91,214,.35)}
.hero-photo-label{position:absolute;right:24px;bottom:18px;z-index:3;font-size:.7rem;color:#9fc0f5;background:rgba(5,19,45,.55);padding:4px 10px;border-radius:6px;border:1px solid rgba(159,192,245,.3)}

/* Inner page hero (no image) */
.page-hero{position:relative;margin-top:var(--header-h);background:var(--deep);color:#fff;padding:60px 0 52px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.03) 0 2px, transparent 2px 22px),
    linear-gradient(160deg,#0b2a5e,#05132d);z-index:0}
.page-hero .container{position:relative;z-index:2}
.page-hero .eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9fc0f5;margin-bottom:10px}
.page-hero h1{color:#fff;max-width:880px}
.page-hero .lead{color:#c8d8ef;margin-top:16px;max-width:720px}

/* Breadcrumb */
.breadcrumb{font-size:.85rem;color:var(--text-secondary);padding:20px 0 0}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{margin:0 8px;color:var(--border)}
.breadcrumb .current{color:var(--text);font-weight:600}

/* Buyer ID */
.buyer-id{background:var(--bg-soft)}
.buyer-id-chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.buyer-chip{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);padding:11px 20px;font-weight:600;color:var(--text);transition:.18s;font-size:.92rem}
.buyer-chip:hover{border-color:var(--brand);background:var(--brand-light);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.buyer-chip svg{width:18px;height:18px;color:var(--brand);flex:none}

/* Generic grids */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}

/* Product cards */
.pcard{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.pcard-image{height:128px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:700;font-size:.8rem;text-align:center;padding:10px;border-bottom:1px solid var(--border)}
.pcard-body{padding:18px}
.pcard-body h3{margin-bottom:6px}
.pcard-body p{font-size:.88rem;color:var(--text-secondary);margin-bottom:12px}
.pcard-body .tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.pcard-body .tag{font-size:.72rem;background:var(--bg-soft);color:var(--text-secondary);padding:3px 9px;border-radius:var(--radius-pill);border:1px solid var(--border)}
.pcard-link{font-weight:700;font-size:.9rem;color:var(--brand);margin-top:auto}
.pcard-link::after{content:" →"}

/* Standards */
.std-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.std-tile{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center;transition:.2s}
.std-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.std-tile .std-code{font-size:1.6rem;font-weight:800;color:var(--brand)}
.std-tile .std-name{font-size:.85rem;color:var(--text-secondary);margin-top:4px}
.std-note{text-align:center;margin-top:22px;font-size:.9rem;color:var(--text-secondary)}

/* Capability */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cap-icon{width:48px;height:48px;border-radius:10px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:14px}
.cap-icon svg{width:24px;height:24px}
.cap h3{font-size:1.05rem}
.cap p{font-size:.88rem;color:var(--text-secondary)}
.factory-strip{display:flex;flex-wrap:wrap;gap:0;background:var(--deep);color:#fff;border-radius:var(--radius);overflow:hidden;margin-top:34px}
.factory-strip .stat{flex:1;min-width:140px;padding:24px 18px;text-align:center;border-right:1px solid rgba(255,255,255,.08)}
.factory-strip .stat:last-child{border-right:0}
.factory-strip .num{font-size:1.7rem;font-weight:800;color:#7fb2ff}
.factory-strip .lbl{font-size:.8rem;color:#a9b4c9;margin-top:4px}
.cert-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* Solutions / applications */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s}
.app-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.app-img{height:130px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:700;font-size:.78rem;padding:10px;text-align:center;border-bottom:1px solid var(--border)}
.app-card .body{padding:18px}
.app-card .body p{font-size:.88rem;color:var(--text-secondary)}

/* Markets */
.market-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.market-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:.2s}
.market-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.market-card .flag{font-size:1.6rem;margin-bottom:6px}
.market-card h3{font-size:1.1rem}
.market-card .std-pref{display:inline-block;margin-top:10px;font-size:.78rem;color:var(--text-secondary);background:var(--bg-soft);border:1px solid var(--border);padding:4px 10px;border-radius:var(--radius-pill)}
.market-card p{font-size:.88rem;color:var(--text-secondary);margin-top:8px}

/* Custom / risk */
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.risk-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.2s}
.risk-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.risk-card .cap-icon{margin-bottom:12px}
.risk-card ul{list-style:none;margin-top:10px;font-size:.88rem;color:var(--text-secondary)}
.risk-card li{padding-left:20px;position:relative;margin-bottom:6px}
.risk-card li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--success)}

/* Steps / process */
.process{display:grid;grid-template-columns:repeat(7,1fr);gap:0;counter-reset:step}
.step{position:relative;padding:24px 14px 0;text-align:center}
.step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:42px;height:42px;margin:0 auto 14px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;position:relative;z-index:2}
.step::after{content:"";position:absolute;top:45px;left:50%;width:100%;height:2px;background:var(--border);z-index:1}
.step:last-child::after{display:none}
.step h4{font-size:.95rem;font-weight:700;margin-bottom:4px}
.step p{font-size:.8rem;color:var(--text-secondary)}

/* FAQ */
.faq{max-width:880px;margin:0 auto}
details{border:1px solid var(--border);border-radius:var(--radius);background:#fff;margin-bottom:12px;overflow:hidden}
summary{padding:16px 20px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--text)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.3rem;color:var(--brand);font-weight:400}
details[open] summary::after{content:"−"}
details .ans{padding:0 20px 18px;color:var(--text-secondary);font-size:.92rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.contact-info h3{margin-top:20px}
.contact-info .info-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:.95rem}
.contact-info .info-row svg{width:20px;height:20px;color:var(--brand);flex:none;margin-top:3px}
.contact-info .info-row a{color:var(--text)}
.inquiry{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.form-group{margin-bottom:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.inquiry label{display:block;font-size:.82rem;font-weight:600;margin-bottom:5px;color:var(--text-secondary)}
.inquiry input,.inquiry select,.inquiry textarea{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:var(--radius-sm);font-family:inherit;font-size:.92rem;color:var(--text);background:#fff}
.inquiry input:focus,.inquiry select:focus,.inquiry textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.inquiry textarea{resize:vertical;min-height:90px}
.form-note{font-size:.78rem;color:var(--text-secondary);margin-top:6px}

/* Footer */
.site-footer{background:var(--deep);color:#a9b4c9;padding:56px 0 28px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.site-footer a{color:#a9b4c9;display:block;margin-bottom:8px;font-size:.88rem}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-brand .brand{color:#fff;margin-bottom:12px}
.footer-brand p{font-size:.85rem;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;font-size:.8rem;color:#7e8aa3;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Sticky CTA */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--border);box-shadow:var(--shadow-lg);display:none;z-index:900;padding:10px 16px}
.sticky-cta .inner{display:flex;gap:10px;max-width:var(--maxw);margin:0 auto}
.sticky-cta .btn{flex:1;text-align:center}
.sticky-cta .btn-outline{flex:0 0 auto}

/* Standards comparison table (market pages) */
.cmp-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.cmp-table th,.cmp-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:.92rem;vertical-align:top}
.cmp-table th{background:var(--bg-soft);font-weight:700;color:var(--text)}
.cmp-table tr:last-child td{border-bottom:0}
.cmp-yes{color:var(--success);font-weight:700}
.cmp-req{color:var(--warning);font-weight:700}
.cmp-note{font-size:.9rem;color:var(--text-secondary);text-align:center;margin-top:18px}

/* Persona card (market pages) */
.persona{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.2s}
.persona:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.persona h3{font-size:1.05rem}
.persona p{font-size:.88rem;color:var(--text-secondary)}
.persona .tag{display:inline-block;margin-top:10px;font-size:.74rem;font-weight:700;color:var(--brand-dark);background:var(--brand-light);padding:4px 10px;border-radius:var(--radius-pill)}

/* Product Detail Page (PDP) */
.pdp{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.pdp-image{height:360px;background:var(--brand-light);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:700;text-align:center;padding:20px;border:1px solid var(--border)}
.pdp-main .tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0}
.pdp-main .tag{font-size:.74rem;background:var(--bg-soft);color:var(--text-secondary);padding:4px 10px;border-radius:var(--radius-pill);border:1px solid var(--border)}
.spec-table{width:100%;border-collapse:collapse;margin-top:10px}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--border);font-size:.9rem;vertical-align:top}
.spec-table th{width:34%;color:var(--text-secondary);font-weight:600;background:var(--bg-soft)}
.spec-table td{color:var(--text)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}

/* Article / resource layout */
.article{max-width:820px;margin:0 auto}
.article-body p{margin-bottom:16px;color:var(--text-secondary)}
.article-body h2{font-size:1.5rem;margin:32px 0 12px}
.article-body h3{font-size:1.15rem;margin:24px 0 8px}
.article-body ul,.article-body ol{margin:0 0 16px 20px;color:var(--text-secondary)}
.article-body li{margin-bottom:6px}
.article-body table{border-collapse:collapse;width:100%;margin:16px 0;font-size:.9rem}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.article-body th{background:var(--bg-soft);font-weight:700}
.callout{background:var(--brand-light);border-left:4px solid var(--brand);padding:16px 20px;border-radius:var(--radius-sm);margin:20px 0;color:var(--text)}
.callout strong{color:var(--brand-dark)}

/* Responsive */
@media (max-width:980px){
  .nav-main{display:none}
  .menu-toggle{display:flex}
  .nav-main.open{display:flex;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;background:#fff;padding:16px 24px;gap:14px;border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
  .grid-2,.grid-3,.app-grid{grid-template-columns:repeat(2,1fr)}
  .grid-4,.grid-5{grid-template-columns:repeat(2,1fr)}
  .std-grid,.market-grid{grid-template-columns:repeat(2,1fr)}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .pdp{grid-template-columns:1fr;gap:24px}
  .process{grid-template-columns:repeat(2,1fr);gap:18px}
  .step::after{display:none}
  .risk-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  section{padding:52px 0}
  .grid-2,.grid-3,.app-grid,.grid-4,.grid-5,.std-grid,.market-grid,.cap-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero h1{font-size:1.85rem}
  .sticky-cta{display:block}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%;text-align:center}
  .hero-actions .btn{width:auto}
  .pdp-image{height:240px}
  .article-body table{font-size:.82rem}
}
@media (max-width:420px){
  .buyer-id-chips{flex-direction:column}
  .buyer-chip{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}


/* ===== Real images (asset-library integration) ===== */
.pcard-image img,
.app-img img,
.pdp-image img,
.cert-img img,
.facility-img img,
.resource-img img{width:100%;height:100%;object-fit:cover;display:block}
.pcard-image,.app-img,.pdp-image{position:relative;overflow:hidden}
/* Logo: real image replacing the "DH" text mark */
.brand .logo-mark-img{height:34px;width:auto;display:block;border-radius:6px;background:#fff;padding:2px 4px}
.site-header .brand .logo-mark-img{background:#fff}
/* Footer is dark — give the logo a white card so the colorful phoenix stays vivid */
.footer-brand .brand .logo-mark-img{background:#fff;padding:4px 8px;border-radius:8px;height:42px}
/* Hero real photo overlay (index.html) */
.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32;z-index:1}
.hero-bg{z-index:0}
.hero .container{position:relative;z-index:3}
.hero-photo-label{z-index:4}
/* Map placeholder in contact.html */
.map-block{position:relative;height:280px;border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}
.map-block img{width:100%;height:100%;object-fit:cover;display:block}
.map-block .map-caption{position:absolute;left:14px;bottom:14px;background:rgba(5,19,45,.78);color:#fff;padding:8px 14px;border-radius:8px;font-size:.88rem;border:1px solid rgba(255,255,255,.18)}
/* PDP image gallery */
.pdp-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.pdp-gallery img{width:100%;height:130px;object-fit:cover;border-radius:8px;border:1px solid var(--border);background:var(--brand-light)}
@media (max-width:640px){.pdp-gallery{grid-template-columns:repeat(2,1fr)}}
/* Cert gallery (about.html) */
.cert-gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:18px}
.cert-gallery img{width:100%;height:110px;object-fit:cover;border-radius:8px;border:1px solid var(--border);background:#fff;padding:6px}
@media (max-width:640px){.cert-gallery{grid-template-columns:repeat(2,1fr)}}

/* ============================================================
   Mega-Menu Navigation (assets/js/nav.js) — shared across all pages
   Reuses :root tokens; works at site root and inside subfolders.
   ============================================================ */
.nav-main{gap:2px}
.nav-item{position:relative;display:flex;align-items:center}
.nav-main .nav-trigger{display:inline-flex;align-items:center;gap:7px;color:var(--text-secondary);font-weight:600;font-size:.92rem;padding:9px 13px;border-radius:8px;cursor:pointer;background:none;border:none;font-family:inherit;line-height:1;text-decoration:none;transition:background .15s,color .15s}
.nav-main .nav-trigger:hover,.nav-item.open>.nav-trigger{color:var(--brand);background:var(--brand-light);text-decoration:none}
.nav-main .nav-trigger.active{color:var(--brand)}
.nav-trigger .caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .2s ease;margin-top:-3px;opacity:.7}
.nav-item.open>.nav-trigger .caret{transform:rotate(-135deg)}

.nav-mega{position:absolute;top:100%;left:0;min-width:256px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);padding:10px;display:none;flex-direction:column;z-index:400}
.nav-mega::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}
.nav-item.open>.nav-mega{display:flex}
.nav-mega a{display:flex;flex-direction:column;gap:2px;padding:9px 12px;border-radius:8px;color:var(--text);font-weight:600;font-size:.9rem;text-decoration:none}
.nav-mega a:hover{background:var(--brand-light);color:var(--brand)}
.nav-mega .nav-note{font-size:.74rem;font-weight:500;color:var(--sec)}
.nav-mega .nav-div{height:1px;background:var(--border);margin:6px 4px}
.nav-mega .nav-head{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--sec);padding:8px 12px 3px;font-weight:700}

/* Mobile drawer: top-level items become a vertical accordion */
@media (max-width:980px){
  .nav-main.open{align-items:stretch;gap:4px}
  .nav-item{position:static;display:block}
  .nav-main .nav-trigger{width:100%;justify-content:space-between;text-align:left}
  .nav-mega{position:static;min-width:0;box-shadow:none;border:none;border-radius:0;padding:2px 0 6px 10px;display:none}
  .nav-item.open>.nav-mega{display:flex}
  .nav-mega::before{display:none}
  .nav-mega a{padding:10px 12px}
}

/* =========================================================
   Growth toolkit — form states, lead handoff, consent banner,
   newsletter (added by analytics/inquiry layer)
   ========================================================= */
.invalid{border-color:#dc2626 !important;box-shadow:0 0 0 3px rgba(220,38,38,.12) !important}
.form-result{margin-top:14px;padding:12px 16px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:600}
.form-result.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.form-result.ok{background:#ecfdf5;color:var(--success);border:1px solid #a7f3d0}
.form-result code{background:rgba(0,0,0,.06);padding:1px 6px;border-radius:4px;font-size:.85em}
.handoff{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0 4px}
.handoff .btn{text-decoration:none}

/* Cookie / analytics consent banner */
#dh-consent{position:fixed;left:0;right:0;bottom:0;z-index:1500;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--deep);color:#fff;padding:12px 20px;font-size:.88rem;box-shadow:0 -6px 24px rgba(0,0,0,.2)}
#dh-consent a{color:#9ec3ff}
.dh-consent-actions{display:flex;gap:8px}
#dh-consent button{font:inherit;cursor:pointer;border:1px solid rgba(255,255,255,.4);background:transparent;color:#fff;padding:6px 14px;border-radius:var(--radius-pill)}
#dh-consent button[data-act="ok"]{background:var(--brand);border-color:var(--brand)}
#dh-consent button:hover{opacity:.9}

/* Newsletter signup */
.newsletter{display:flex;gap:10px;flex-wrap:wrap;max-width:520px}
.newsletter input[type=email]{flex:1;min-width:220px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font:inherit}
.newsletter .form-result{flex-basis:100%}


/* =========================================================
   VISUAL ENHANCEMENT LAYER (additive — CSS only)
   Goal: unify color/typography, strengthen spacing & hierarchy,
   polish cards/images/buttons, refine responsive behaviour.
   No text, markup or functionality changed.
   ========================================================= */

/* ---- 1. Token refinement & additions ---- */
:root{
  --brand:#0a5bd6;
  --brand-2:#2f7bf0;
  --brand-dark:#0846a5;
  --brand-grad:linear-gradient(135deg,#0a5bd6 0%,#2f7bf0 100%);
  --brand-grad-soft:linear-gradient(135deg,#eaf1fe 0%,#dbe8fd 100%);
  --ink:#141a26;
  --text:#1f2733;
  --text-secondary:#566175;
  --bg:#ffffff;
  --bg-soft:#f4f7fc;
  --surface:#ffffff;
  --border:#e2e8f1;
  --border-strong:#cdd6e4;
  --success:#0f9d6b;
  --success-soft:#e6f7f0;
  --warning:#d98324;
  --warning-soft:#fdf1e3;
  --deep:#061a36;
  --deep-2:#0b2a5e;
  --ring:0 0 0 4px rgba(10,91,214,.22);
  --shadow-xs:0 1px 2px rgba(16,24,40,.06);
  --shadow-sm:0 2px 8px rgba(16,24,40,.06);
  --shadow:0 10px 30px rgba(13,38,76,.10);
  --shadow-lg:0 22px 50px rgba(13,38,76,.16);
  --radius:12px;
  --radius-sm:8px;
  --radius-img:10px;
  --radius-pill:999px;
  --t-fast:.18s ease;
  --t:.26s cubic-bezier(.2,.7,.3,1);
  --header-h:74px;
  --maxw:1180px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-display:"Manrope","Inter",system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ---- 2. Base & accessibility polish ---- */
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
::selection{background:rgba(10,91,214,.16);color:var(--ink)}
:focus-visible{outline:3px solid var(--brand);outline-offset:0;border-radius:6px}
img{max-width:100%;display:block}
section[id]{scroll-margin-top:calc(var(--header-h) + 14px)}

/* ---- 3. Typography hierarchy ---- */
h1,h2,h3,h4{line-height:1.18;color:var(--ink);letter-spacing:-.02em;font-family:var(--font-display)}
h1{font-size:clamp(2.2rem,5.2vw,3.5rem);font-weight:800;line-height:1.1}
h2{font-size:clamp(1.7rem,3.4vw,2.25rem);font-weight:800;margin-bottom:14px;letter-spacing:-.025em}
h3{font-size:1.18rem;font-weight:700;margin-bottom:8px}
.lead{font-size:clamp(1.05rem,2.1vw,1.2rem);color:var(--text-secondary);max-width:720px;line-height:1.7}

/* ---- 4. Layout spacing & section heads ---- */
.container{max-width:var(--maxw);padding:0 24px}
section{padding:84px 0}
.bg-soft{background:var(--bg-soft)}
.section-head{text-align:center;max-width:760px;margin:0 auto 52px}
.section-head .eyebrow{position:relative;display:inline-block;font-size:.78rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.section-head .eyebrow::before{content:"";display:inline-block;width:26px;height:2px;background:var(--brand);
  vertical-align:middle;margin-right:10px;border-radius:2px}
.section-head h2{margin-bottom:12px}

/* ---- 5. Buttons (premium) ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:.95rem;
  padding:13px 26px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
  text-decoration:none;letter-spacing:.01em;min-height:46px}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 6px 18px rgba(10,91,214,.28)}
.btn-primary:hover{background:linear-gradient(135deg,#0a5bd6,#1f6fe8);box-shadow:0 12px 30px rgba(10,91,214,.40);color:#fff}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--border-strong)}
.btn-outline:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark);box-shadow:var(--shadow-sm)}
.btn-light:hover{background:#f1f7ff;transform:translateY(-2px);color:var(--brand-dark)}
.btn-lg{padding:15px 32px;font-size:1rem}

/* ---- 6. Badges ---- */
.badge{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:6px 13px;border-radius:var(--radius-pill)}
.badge-blue{background:var(--brand-light);color:var(--brand-dark);border:1px solid rgba(10,91,214,.18)}
.badge-success{background:var(--success-soft);color:var(--success);border:1px solid rgba(15,157,107,.22)}
.badge-warn{background:var(--warning-soft);color:var(--warning);border:1px solid rgba(217,131,36,.24)}

/* ---- 7. Cards: shared treatment (pcard / app-card / market-card / risk-card / std-tile / persona) ---- */
.pcard,.app-card,.market-card,.risk-card,.std-tile,.persona{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t);box-shadow:var(--shadow-xs)}
.pcard:hover,.app-card:hover,.market-card:hover,.risk-card:hover,.std-tile:hover,.persona:hover{
  transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
/* gradient top accent revealed on hover */
.pcard::before,.app-card::before,.market-card::before,.risk-card::before,.std-tile::before,.persona::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-grad);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);z-index:2}
.pcard:hover::before,.app-card:hover::before,.market-card:hover::before,.risk-card:hover::before,
.std-tile:hover::before,.persona:hover::before{transform:scaleX(1)}

/* product cards */
.pcard{display:flex;flex-direction:column}
.pcard-image{height:152px;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-weight:700;font-size:.8rem;text-align:center;padding:0;border-bottom:1px solid var(--border);overflow:hidden}
.pcard-image img{transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.pcard:hover .pcard-image img{transform:scale(1.07)}
.pcard-body{padding:20px}
.pcard-body h3{margin-bottom:6px;font-family:var(--font-display)}
.pcard-body p{font-size:.9rem;color:var(--text-secondary);margin-bottom:14px;line-height:1.6}
.pcard-body .tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.pcard-body .tag{font-size:.72rem;background:var(--bg-soft);color:var(--text-secondary);padding:4px 10px;border-radius:var(--radius-pill);border:1px solid var(--border)}
.pcard-link{font-weight:700;font-size:.9rem;color:var(--brand);margin-top:auto;display:inline-flex;align-items:center;gap:6px;transition:gap var(--t),color var(--t)}
.pcard-link:hover{color:var(--brand-dark);gap:10px;text-decoration:none}

/* application cards */
.app-card .app-img{height:138px;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-weight:700;font-size:.78rem;padding:0;text-align:center;border-bottom:1px solid var(--border);overflow:hidden}
.app-img img{transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.app-card:hover .app-img img{transform:scale(1.07)}
.app-card .body{padding:20px}
.app-card .body p{font-size:.9rem;color:var(--text-secondary);line-height:1.6}

/* market cards */
.market-card{padding:24px}
.market-card .flag{font-size:1.7rem;margin-bottom:8px;line-height:1}
.market-card h3{font-size:1.12rem}
.market-card .std-pref{display:inline-block;margin-top:12px;font-size:.78rem;color:var(--brand-dark);
  background:var(--brand-light);border:1px solid rgba(10,91,214,.16);padding:5px 11px;border-radius:var(--radius-pill);font-weight:600}
.market-card p{font-size:.9rem;color:var(--text-secondary);margin-top:8px;line-height:1.6}

/* risk / feature cards */
.risk-card{padding:26px}
.risk-card .cap-icon{margin-bottom:12px;background:var(--brand-grad-soft);color:var(--brand);
  box-shadow:inset 0 0 0 1px rgba(10,91,214,.08)}
.risk-card ul{list-style:none;margin-top:12px;font-size:.9rem;color:var(--text-secondary)}
.risk-card li{padding-left:22px;position:relative;margin-bottom:8px;line-height:1.55}
.risk-card li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--success)}

/* standards tiles */
.std-tile{padding:24px;text-align:center}
.std-tile .std-code{font-size:1.7rem;font-weight:800;background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.std-tile .std-name{font-size:.86rem;color:var(--text-secondary);margin-top:6px}

/* capability icons */
.cap-icon{width:50px;height:50px;border-radius:12px;background:var(--brand-grad-soft);display:flex;
  align-items:center;justify-content:center;color:var(--brand);margin-bottom:14px;
  box-shadow:inset 0 0 0 1px rgba(10,91,214,.08);transition:transform var(--t)}
.cap:hover .cap-icon{transform:translateY(-3px) scale(1.04)}
.cap h3{font-size:1.06rem;font-family:var(--font-display)}
.cap p{font-size:.9rem;color:var(--text-secondary);line-height:1.6}

/* persona (market pages) */
.persona{padding:26px}
.persona h3{font-size:1.06rem}
.persona p{font-size:.9rem;color:var(--text-secondary);line-height:1.6}
.persona .tag{display:inline-block;margin-top:12px;font-size:.74rem;font-weight:700;color:var(--brand-dark);background:var(--brand-light);padding:5px 11px;border-radius:var(--radius-pill)}

/* ---- 8. Hero (home & market pages) ---- */
.hero{position:relative;margin-top:var(--header-h);min-height:660px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:
  radial-gradient(1100px 620px at 80% 12%, rgba(47,123,240,.40), transparent 60%),
  linear-gradient(100deg, rgba(6,26,54,.97), rgba(6,26,54,.42)),
  repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 2px, transparent 2px 22px),
  linear-gradient(160deg,#0e2f63,#061a36)}
.hero .container{position:relative;z-index:3;padding-top:74px;padding-bottom:74px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:#bcd4f7;margin-bottom:20px;background:rgba(255,255,255,.08);
  border:1px solid rgba(159,192,245,.28);padding:7px 15px;border-radius:var(--radius-pill);backdrop-filter:blur(4px)}
.hero h1{max-width:840px;color:#fff;letter-spacing:-.025em;text-shadow:0 2px 20px rgba(0,0,0,.28)}
.hero h1 .hl{color:#8fc0ff}
.hero .lead{color:#d6e3f5;margin:22px 0 32px;max-width:680px;line-height:1.7;
  font-size:clamp(1.05rem,2.1vw,1.2rem);text-shadow:0 1px 12px rgba(0,0,0,.2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 30px;font-size:.92rem;color:#dbe7f8;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-trust span{display:flex;align-items:center;gap:9px}
.hero-trust b{color:#fff;font-weight:800}
.dot{width:8px;height:8px;border-radius:50%;background:#5b9bff;box-shadow:0 0 0 4px rgba(91,155,255,.25)}
.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38;z-index:1;
  -webkit-mask-image:linear-gradient(90deg,#000 35%,transparent 92%);mask-image:linear-gradient(90deg,#000 35%,transparent 92%)}
.hero-photo-label{position:absolute;right:24px;bottom:18px;z-index:4;font-size:.7rem;color:#cfe0f8;
  background:rgba(6,26,54,.55);padding:5px 11px;border-radius:8px;border:1px solid rgba(159,192,245,.3)}
@keyframes heroUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero .hero-kicker{animation:heroUp .7s cubic-bezier(.2,.7,.3,1) both}
.hero h1{animation:heroUp .7s cubic-bezier(.2,.7,.3,1) .06s both}
.hero .lead{animation:heroUp .7s cubic-bezier(.2,.7,.3,1) .12s both}
.hero-actions{animation:heroUp .7s cubic-bezier(.2,.7,.3,1) .18s both}
.hero-trust{animation:heroUp .7s cubic-bezier(.2,.7,.3,1) .24s both}

/* inner page hero */
.page-hero{position:relative;margin-top:var(--header-h);background:var(--deep);color:#fff;padding:64px 0 56px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;z-index:0;background:
  radial-gradient(900px 500px at 82% 10%, rgba(47,123,240,.34), transparent 60%),
  repeating-linear-gradient(135deg, rgba(255,255,255,.03) 0 2px, transparent 2px 22px),
  linear-gradient(160deg,#0e2f63,#061a36)}
.page-hero .container{position:relative;z-index:2}
.page-hero .eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:#bcd4f7;margin-bottom:12px}
.page-hero h1{color:#fff;max-width:880px;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.page-hero .lead{color:#d6e3f5;margin-top:16px;max-width:720px;line-height:1.7}

/* ---- 9. Factory strip & certs ---- */
.factory-strip{display:flex;flex-wrap:wrap;gap:0;background:linear-gradient(135deg,#0b2a5e,#061a36);
  color:#fff;border-radius:var(--radius);overflow:hidden;margin-top:34px;box-shadow:var(--shadow)}
.factory-strip .stat{flex:1;min-width:150px;padding:26px 18px;text-align:center;border-right:1px solid rgba(255,255,255,.09)}
.factory-strip .stat:last-child{border-right:0}
.factory-strip .num{font-size:1.95rem;font-weight:800;color:#8fc0ff}
.factory-strip .lbl{font-size:.82rem;color:#aebccf;margin-top:6px}
.cert-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;justify-content:center}

/* ---- 10. Process steps ---- */
.process{display:grid;grid-template-columns:repeat(7,1fr);gap:0;counter-reset:step}
.step{position:relative;padding:24px 14px 0;text-align:center}
.step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;margin:0 auto 16px;border-radius:50%;background:var(--brand-grad);color:#fff;
  font-weight:800;position:relative;z-index:2;box-shadow:0 8px 18px rgba(10,91,214,.30)}
.step::after{content:"";position:absolute;top:47px;left:50%;width:100%;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--border));z-index:1}
.step:last-child::after{display:none}
.step h4{font-size:.96rem;font-weight:700;margin-bottom:4px;font-family:var(--font-display)}
.step p{font-size:.82rem;color:var(--text-secondary);line-height:1.5}

/* ---- 11. FAQ accordion ---- */
.faq{max-width:880px;margin:0 auto}
details{border:1px solid var(--border);border-radius:var(--radius);background:#fff;margin-bottom:12px;
  overflow:hidden;transition:box-shadow var(--t),border-color var(--t)}
details:hover{border-color:var(--border-strong)}
details[open]{box-shadow:var(--shadow-sm);border-color:var(--brand)}
summary{padding:18px 22px;font-weight:700;cursor:pointer;list-style:none;display:flex;
  justify-content:space-between;align-items:center;color:var(--ink);transition:background var(--t)}
summary:hover{background:var(--bg-soft)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex:none;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;background:var(--brand-light);color:var(--brand);font-size:1.25rem;font-weight:600;
  transition:transform var(--t),background var(--t)}
details[open] summary::after{content:"−";font-size:1.4rem;background:var(--brand);color:#fff}
details .ans{padding:0 22px 20px;color:var(--text-secondary);font-size:.94rem;line-height:1.7}

/* ---- 12. Contact / inquiry form ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start}
.contact-info h3{margin-top:22px;font-family:var(--font-display)}
.contact-info .info-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:15px;font-size:.95rem;line-height:1.5}
.contact-info .info-row svg{width:20px;height:20px;color:var(--brand);flex:none;margin-top:3px}
.contact-info .info-row a{color:var(--text);transition:color var(--t)}
.contact-info .info-row a:hover{color:var(--brand)}
.inquiry{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-group{margin-bottom:15px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.inquiry label{display:block;font-size:.82rem;font-weight:600;margin-bottom:6px;color:var(--text-secondary)}
.inquiry input,.inquiry select,.inquiry textarea{width:100%;padding:12px 14px;border:1px solid var(--border);
  border-radius:var(--radius-sm);font-family:inherit;font-size:.94rem;color:var(--text);background:#fff;
  transition:border-color var(--t),box-shadow var(--t)}
.inquiry input:hover,.inquiry select:hover,.inquiry textarea:hover{border-color:var(--border-strong)}
.inquiry input:focus,.inquiry select:focus,.inquiry textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}
.inquiry textarea{resize:vertical;min-height:92px}
.form-note{font-size:.78rem;color:var(--text-secondary);margin-top:8px}
.eyebrow{color:var(--brand)}

/* ---- 13. Header & navigation ---- */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--border);z-index:1000;box-shadow:0 1px 0 rgba(16,24,40,.04)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:1.05rem}
.brand small{display:block;font-weight:500;font-size:.7rem;color:var(--text-secondary);letter-spacing:.04em}
.nav-main a{color:var(--text-secondary);font-weight:600;font-size:.92rem;transition:color var(--t-fast)}
.nav-main a:hover{color:var(--brand);text-decoration:none}
.nav-main a.active{color:var(--brand)}
.nav-trigger{transition:background var(--t-fast),color var(--t-fast)}
.nav-mega a{transition:background var(--t-fast),color var(--t-fast)}
.menu-toggle{transition:border-color var(--t-fast),background var(--t-fast)}
.menu-toggle:hover{border-color:var(--brand);background:var(--brand-light)}

/* ---- 14. Footer ---- */
.site-footer{background:linear-gradient(180deg,#061a36,#04122a);color:#aeb9cc;padding:60px 0 30px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:16px;font-family:var(--font-display);letter-spacing:.01em}
.site-footer a{color:#aeb9cc;display:block;margin-bottom:9px;font-size:.88rem;transition:color var(--t),transform var(--t)}
.site-footer a:hover{color:#fff;text-decoration:none;transform:translateX(3px)}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:.85rem;line-height:1.7;color:#9fadc2}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:38px;padding-top:20px;font-size:.8rem;
  color:#7e8aa3;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---- 15. Sticky CTA (mobile) ---- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--border);
  box-shadow:0 -8px 28px rgba(13,38,76,.14);display:none;z-index:900;padding:10px 16px}
.sticky-cta .inner{display:flex;gap:10px;max-width:var(--maxw);margin:0 auto}
.sticky-cta .btn{flex:1;text-align:center}
.sticky-cta .btn-outline{flex:0 0 auto}

/* ---- 16. Comparison / spec tables ---- */
.cmp-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-xs)}
.cmp-table th,.cmp-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:.92rem;vertical-align:top}
.cmp-table th{background:var(--bg-soft);font-weight:700;color:var(--ink)}
.spec-table th{background:var(--bg-soft);color:var(--text-secondary);font-weight:600}

/* ---- 17. Responsive refinements ---- */
@media (max-width:980px){
  section{padding:64px 0}
  .section-head{margin-bottom:40px}
  .hero{min-height:600px}
  .grid-2,.grid-3,.app-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .grid-4,.grid-5{grid-template-columns:repeat(2,1fr);gap:18px}
  .std-grid,.market-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .cap-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .risk-grid{grid-template-columns:1fr;gap:18px}
  .contact-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .process{grid-template-columns:repeat(2,1fr);gap:20px}
  .step::after{display:none}
}
@media (max-width:640px){
  section{padding:56px 0}
  .container{padding:0 18px}
  .grid-2,.grid-3,.app-grid,.grid-4,.grid-5,.std-grid,.market-grid,.cap-grid{grid-template-columns:1fr;gap:16px}
  .form-row{grid-template-columns:1fr}
  .hero{min-height:560px;border-radius:0}
  .hero h1{font-size:1.9rem}
  .hero .container{padding-top:56px;padding-bottom:56px}
  .sticky-cta{display:block}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn{width:100%;text-align:center}
  .hero-actions .btn{width:auto}
  .pdp-image{height:240px}
  .article-body table{font-size:.82rem}
  .site-footer{padding:48px 0 26px}
}
@media (max-width:420px){
  .buyer-id-chips{flex-direction:column}
  .buyer-chip{width:100%;justify-content:center}
  .factory-strip .stat{flex:1 1 50%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* ============================================================
   18. Brand (logo) — presentation only, no navigation
   The logo is a visual mark; clicking it must NOT change the
   page (per site requirement). Interactivity is disabled in
   nav.js; these styles keep it looking intentional & accessible.
   ============================================================ */
.brand{cursor:default;text-decoration:none}
.brand:hover{text-decoration:none}
.brand:focus{outline:none}
.brand:focus-visible{outline:3px solid var(--brand);outline-offset:4px;border-radius:8px}
.brand .logo-mark-img{display:block}
.brand span{display:inline-flex;flex-direction:column;line-height:1.15}
.brand small{font-size:.62rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:var(--text-secondary);margin-top:2px}

/* ============================================================
   19. Card overlay links (whole card becomes clickable)
   Wrap an .app-card / .market-card in an <a class="*-card-link">
   so the entire card is a single navigable target.
   ============================================================ */
.app-card-link,.market-card-link{display:block;color:inherit;text-decoration:none;height:100%}
.app-card-link:hover,.market-card-link:hover,
.app-card-link:focus,.market-card-link:focus{text-decoration:none;color:inherit}
.app-card-link .app-card,.market-card-link .market-card{
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease
}
.app-card-link:hover .app-card,
.market-card-link:hover .market-card,
.app-card-link:focus-visible .app-card,
.market-card-link:focus-visible .market-card{
  transform:translateY(-4px);
  box-shadow:0 14px 30px rgba(15,23,42,.12);
  border-color:var(--brand)
}
.app-card-link:focus-visible,.market-card-link:focus-visible{outline:3px solid var(--brand);outline-offset:4px;border-radius:16px}

/* ============================================================
   20. About page — intro 2-column with fact panel
   Mirrors the homepage visual language; fixes oversized h2 and
   cramped intro text by giving the intro a clean 2-column rhythm.
   ============================================================ */
.about-intro{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}
.about-intro-text .eyebrow{display:inline-block;margin-bottom:14px}
.about-intro-text h2{
  font-size:clamp(1.6rem,3vw,2.15rem);
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:18px
}
.about-intro-text .lead{font-size:1.05rem;color:var(--text-secondary);max-width:54ch}
.about-intro-text p{color:var(--text-secondary);max-width:56ch}
.about-intro-text p + p{margin-top:14px}
.about-intro-visual{display:flex;justify-content:center}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:14px;width:100%}
.about-fact{
  background:var(--bg-soft);
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px 20px;
  transition:transform .25s ease,box-shadow .25s ease
}
.about-fact:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(15,23,42,.08)}
.about-fact .num{font-size:1.55rem;font-weight:700;color:var(--brand);line-height:1}
.about-fact .lbl{display:block;margin-top:6px;font-size:.84rem;color:var(--text-secondary)}
@media (max-width:820px){
  .about-intro{grid-template-columns:1fr;gap:30px}
  .about-intro-text h2{font-size:1.7rem}
}
@media (max-width:480px){
  .about-facts{grid-template-columns:1fr}
}