/* ============ B2B Site Prototype - style.css ============ */
:root{
  --navy:#252A31;
  --navy-2:#2D333C;
  --navy-3:#39414C;
  --accent:#E8A33D;
  --accent-2:#F5BB5C;
  --bg:#FFFFFF;
  --bg-light:#ECEEF1;
  --ink:#23272E;
  --muted:#6B7280;
  --border:#D9DEE4;
  --white:#fff;
  --radius:12px;
  --shadow:0 10px 30px rgba(37,42,49,.08);
  --shadow-lg:0 18px 50px rgba(37,42,49,.16);
  --maxw:1200px;
  --font:"Inter","Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-light{background:var(--bg-light)}
.section-dark{background:var(--navy);color:#E9EDF1}
.section-dark .sec-title{color:#fff}
.section-dark .sec-sub{color:#9AA4AF}
.sec-tag{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--accent);font-weight:700;text-transform:uppercase;margin-bottom:12px}
.section-dark .sec-tag{color:var(--accent-2)}
.sec-title{font-size:34px;font-weight:800;color:var(--navy);line-height:1.25;letter-spacing:.5px}
.sec-sub{font-size:16px;color:var(--muted);margin-top:14px;max-width:720px}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-head .sec-sub{margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:6px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:all .25s ease;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#CF8A2A;transform:translateY(-2px);box-shadow:0 10px 24px rgba(232,163,61,.35)}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,.6)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-outline-dark{background:transparent;color:var(--navy);border-color:var(--navy);}
.btn-outline-dark:hover{background:var(--navy);color:#fff}
.btn-white{background:#fff;color:var(--navy)}
.btn-white:hover{background:var(--bg-light)}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(37,42,49,.08);border-color:var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--navy);letter-spacing:.5px}
.logo .logo-mark{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--navy-3));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:900}
.logo small{display:block;font-size:10px;font-weight:600;color:var(--muted);letter-spacing:2.5px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:6px}
.nav a{padding:10px 14px;border-radius:6px;font-weight:500;font-size:15px;color:var(--ink);transition:background .2s,color .2s}
.nav a:hover{color:var(--accent);background:rgba(232,163,61,.06)}
.nav a.active{color:var(--accent);font-weight:700}
.header-cta{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}
.lang-switch button{background:none;border:none;padding:7px 12px;font-size:13px;font-weight:600;cursor:pointer;color:var(--muted);font-family:inherit}
.lang-switch button.active{background:var(--navy);color:#fff}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:6px;padding:8px 10px;cursor:pointer;font-size:18px}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#1A1E24 0%,#252A31 45%,#3C4550 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(800px 420px at 82% 18%,rgba(232,163,61,.28),transparent 60%),radial-gradient(600px 360px at 12% 92%,rgba(245,187,92,.16),transparent 60%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding:110px 0 120px}
.hero h1{font-size:48px;font-weight:900;line-height:1.18;letter-spacing:1px;margin:18px 0 22px}
.hero h1 .hl{color:var(--accent-2)}
.hero .hero-lead{font-size:18px;color:#C7CDD4;max-width:560px;margin-bottom:34px}
.hero .hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero .hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:36px}
.hero .hero-tags span{font-size:13px;border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px;color:#D6DCE3;background:rgba(255,255,255,.05)}
.hero-visual{position:relative;z-index:2}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:28px;backdrop-filter:blur(8px);box-shadow:var(--shadow-lg)}
.hero-card .hc-title{font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--accent-2);font-weight:700;margin-bottom:18px}
.hero-card .layer{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:10px;margin-bottom:8px;font-weight:600;font-size:14px}
.hero-card .layer span{font-weight:400;color:#BAC3CD;font-size:12px;margin-left:auto}
.hero-card .l1{background:rgba(255,255,255,.16)}
.hero-card .l2{background:rgba(255,255,255,.10)}
.hero-card .l3{background:rgba(255,255,255,.14)}
.hero-card .l4{background:rgba(255,255,255,.08)}
.hero-apps{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.hero-apps span{font-size:12px;color:#D6DCE3;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);padding:5px 12px;border-radius:999px}

/* ---------- About split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split .sec-sub{margin-top:16px}
.split .point-list{margin-top:28px;display:grid;gap:16px}
.split .point{display:flex;gap:14px}
.split .point .pi{flex:0 0 44px;height:44px;border-radius:10px;background:rgba(232,163,61,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.split .point h4{font-size:16px;color:var(--navy);margin-bottom:4px}
.split .point p{font-size:14px;color:var(--muted)}
.visual-panel{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg);background:linear-gradient(140deg,#252A31,#3C4550);color:#fff;padding:36px;min-height:380px;display:flex;flex-direction:column;justify-content:space-between}
.visual-panel .vp-badge{position:absolute;top:22px;right:22px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px}
.visual-panel .vp-title{font-size:22px;font-weight:800;margin-bottom:8px}
.visual-panel .vp-sub{color:#C7CDD4;font-size:14px}
.visual-panel .vp-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.visual-panel .vp-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:16px}
.visual-panel .vp-stat b{font-size:24px;color:var(--accent-2);display:block}
.visual-panel .vp-stat span{font-size:12px;color:#C7CDD4}

/* ---------- Stats band ---------- */
.stats-band{background:linear-gradient(120deg,var(--navy),var(--navy-3));color:#fff;padding:64px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;text-align:center}
.stat-item .num{font-size:44px;font-weight:900;color:var(--accent-2);line-height:1.1}
.stat-item .lbl{font-size:14px;color:#C7CDD4;margin-top:8px;letter-spacing:1px}
.stat-item .suffix{font-size:26px}

/* ---------- Capability cards ---------- */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .card-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(232,163,61,.16),rgba(37,42,49,.10));color:var(--navy-3);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;font-weight:800}
.card h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.card p{font-size:14px;color:var(--muted)}

/* ---------- Product lineup ---------- */
.lineup{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.lineup-card{position:relative;border-radius:16px;overflow:hidden;color:#fff;min-height:260px;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;box-shadow:var(--shadow);transition:transform .25s ease;cursor:pointer}
.lineup-card:hover{transform:translateY(-6px)}
.lineup-card .lc-bg{position:absolute;inset:0;z-index:0}
.lineup-card .lc-body{position:relative;z-index:1;background:linear-gradient(180deg,transparent,rgba(26,30,36,.82));margin:-28px;padding:28px;display:flex;flex-direction:column;justify-content:flex-end;min-height:260px}
.lineup-card .lc-count{position:absolute;top:18px;right:20px;z-index:2;background:rgba(255,255,255,.18);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.3);padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700}
.lineup-card h3{font-size:21px;font-weight:800;margin-bottom:4px}
.lineup-card p{font-size:13px;color:#D6DCE3}
.lineup-card .lc-more{margin-top:14px;font-size:13px;font-weight:700;color:var(--accent-2)}

/* ---------- Factory ---------- */
.factory-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.process-list{display:grid;gap:18px;margin-top:8px}
.process-item{display:flex;gap:16px;align-items:flex-start}
.process-item .step{flex:0 0 40px;height:40px;border-radius:10px;background:var(--navy);color:var(--accent-2);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.process-item h4{font-size:16px;color:var(--navy);margin-bottom:4px}
.process-item p{font-size:14px;color:var(--muted)}
.factory-panel{background:linear-gradient(140deg,#252A31,#39414C);border-radius:16px;color:#fff;padding:36px;box-shadow:var(--shadow-lg);min-height:360px;display:flex;flex-direction:column;justify-content:space-between}
.factory-panel .fp-title{font-size:22px;font-weight:800;margin-bottom:6px}
.factory-panel .fp-sub{color:#C7CDD4;font-size:14px;margin-bottom:20px}
.factory-panel .fp-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.factory-panel .fp-item{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:14px;font-size:13px;display:flex;gap:10px;align-items:center}
.factory-panel .fp-item .dot{width:9px;height:9px;border-radius:50%;background:var(--accent-2);flex:0 0 9px}

/* ---------- Feature / TPU structure ---------- */
.feature-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.structure{background:linear-gradient(140deg,#252A31,#3C4550);border-radius:16px;padding:34px;color:#fff;box-shadow:var(--shadow-lg)}
.structure .st-title{font-size:15px;font-weight:800;margin-bottom:18px;letter-spacing:1px;color:var(--accent-2)}
.structure .layers{display:grid;gap:10px}
.structure .layer{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-radius:10px;font-weight:700;font-size:14px}
.structure .layer span{font-weight:400;font-size:12px;opacity:.85}
.structure .s1{background:rgba(255,255,255,.20)}
.structure .s2{background:rgba(255,255,255,.12)}
.structure .s3{background:rgba(255,255,255,.16)}
.structure .s4{background:rgba(255,255,255,.09)}
.apps{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.apps span{font-size:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:5px 12px;border-radius:999px}
.feature-points{display:grid;gap:14px;margin-top:26px}
.feature-points .fp{display:flex;gap:12px;align-items:flex-start;background:var(--bg-light);border-radius:10px;padding:14px 16px}
.feature-points .fp .ck{flex:0 0 22px;height:22px;border-radius:50%;background:var(--accent);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:800;margin-top:2px}
.feature-points .fp b{color:var(--navy);font-size:14px;display:block}
.feature-points .fp span{font-size:13px;color:var(--muted)}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--navy),var(--navy-3));color:#fff;text-align:center;padding:72px 0}
.cta-band h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-band p{color:#C7CDD4;max-width:600px;margin:0 auto 30px}

/* ---------- Footer ---------- */
.site-footer{background:#1A1E24;color:#9AA4AF;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-grid a{display:block;padding:5px 0;transition:color .2s}
.footer-grid a:hover{color:var(--accent-2)}
.footer-brand .logo{color:#fff;margin-bottom:12px}
.footer-brand p{font-size:13px;max-width:300px}
.footer-contact li{display:flex;gap:10px;padding:5px 0;align-items:flex-start}
.footer-contact .ic{flex:0 0 18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(120deg,#1A1E24,#252A31 55%,#3C4550);color:#fff;padding:72px 0}
.page-hero h1{font-size:36px;font-weight:800;margin-top:8px}
.breadcrumb{font-size:13px;color:#9AA4AF;display:flex;gap:8px;align-items:center}
.breadcrumb a{color:#D6DCE3}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb .sep{opacity:.6}

/* ---------- Products page ---------- */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.cat-tabs button{background:#fff;border:1px solid var(--border);border-radius:999px;padding:9px 20px;font-size:14px;font-weight:600;cursor:pointer;color:var(--muted);font-family:inherit;transition:all .2s}
.cat-tabs button.active,.cat-tabs button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.prod-thumb{height:210px;position:relative;display:flex;align-items:center;justify-content:center;font-size:52px;font-weight:900;color:rgba(255,255,255,.92)}
.prod-thumb .cert{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.85);color:var(--navy);font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.prod-thumb .hot{position:absolute;top:12px;right:12px;background:#ff6b35;color:#fff;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.prod-body{padding:20px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:16px;color:var(--navy);line-height:1.4;margin-bottom:12px;font-weight:700}
.specs{display:grid;gap:6px;margin-bottom:16px}
.specs li{font-size:13px;color:var(--muted);display:flex;gap:8px}
.specs li b{color:var(--ink);font-weight:600;flex:0 0 74px}
.prod-actions{display:flex;gap:10px;margin-top:auto}
.prod-actions .btn{flex:1;padding:10px 12px;font-size:13px}
.prod-actions .btn-ghost{background:transparent;border-color:var(--border);color:var(--navy)}
.prod-actions .btn-ghost:hover{background:var(--bg-light)}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:44px}
.pagination button{width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:#fff;cursor:pointer;font-weight:600;color:var(--ink)}
.pagination button.active{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---------- About page ---------- */
.timeline{display:grid;gap:22px;margin-top:36px}
.timeline .tl{display:flex;gap:18px}
.timeline .tl .yr{flex:0 0 96px;font-size:18px;font-weight:800;color:var(--accent);padding-top:2px}
.timeline .tl .tl-body{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;box-shadow:var(--shadow)}
.timeline .tl .tl-body h4{color:var(--navy);margin-bottom:4px}
.timeline .tl .tl-body p{font-size:14px;color:var(--muted)}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.cert-card .cc-badge{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,rgba(232,163,61,.18),rgba(37,42,49,.12));color:var(--navy-3);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900;margin:0 auto 12px}
.cert-card h4{font-size:15px;color:var(--navy)}
.cert-card p{font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.contact-info .ci{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--border)}
.contact-info .ci .ic{flex:0 0 46px;height:46px;border-radius:12px;background:rgba(232,163,61,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.contact-info .ci h4{font-size:15px;color:var(--navy)}
.contact-info .ci p{font-size:14px;color:var(--muted)}
.form-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:36px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px}
.form-group label .req{color:#e5484d}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;color:var(--ink);transition:border-color .2s,box-shadow .2s;background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,163,61,.15)}
.form-group textarea{resize:vertical;min-height:120px}
.form-error{color:#e5484d;font-size:12px;margin-top:4px;display:none}
.form-group.invalid input,.form-group.invalid textarea,.form-group.invalid select{border-color:#e5484d}
.form-group.invalid .form-error{display:block}
.form-success{display:none;background:#e8f8ef;border:1px solid #9fe0b8;color:#1a7f45;padding:14px 16px;border-radius:8px;font-size:14px;margin-bottom:18px}
.form-success.show{display:block}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(26,30,36,.62);backdrop-filter:blur(3px)}
.modal-panel{position:relative;background:#fff;border-radius:16px;max-width:520px;width:100%;padding:34px;box-shadow:var(--shadow-lg);max-height:92vh;overflow:auto}
.modal-panel .mp-close{position:absolute;top:16px;right:16px;background:var(--bg-light);border:none;width:32px;height:32px;border-radius:8px;cursor:pointer;font-size:16px;color:var(--muted)}
.modal-panel .mp-close:hover{background:var(--border)}
.modal-panel h3{font-size:20px;color:var(--navy);margin-bottom:6px}
.modal-panel .mp-sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.modal .form-success{margin-top:0}

/* ---------- Floating contact ---------- */
.float-contact{position:fixed;right:20px;bottom:24px;z-index:150;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-contact .fc-btn{width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;box-shadow:var(--shadow-lg);transition:transform .2s}
.float-contact .fc-btn:hover{transform:scale(1.08)}
.fc-phone{background:var(--accent)}
.fc-chat{background:var(--navy)}
.float-tip{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);padding:10px 14px;border-radius:10px;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:4px}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;padding:72px 0;gap:40px}
  .split,.factory-grid,.feature-wrap{grid-template-columns:1fr;gap:40px}
  .cards3,.lineup{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:36px}
  .sec-title{font-size:28px}
}
@media(max-width:720px){
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .menu-toggle{display:block}
  .header-cta .btn{display:none}
  .cards3,.lineup,.prod-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero .hero-ctas .btn{flex:1}
  .section{padding:64px 0}
  .cert-grid{grid-template-columns:1fr}
  .timeline .tl{flex-direction:column;gap:8px}
  .timeline .tl .yr{flex:0 0 auto}
}

/* ---------- Product detail ---------- */
.detail-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start}
.detail-gallery{position:sticky;top:96px;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg)}
.detail-gallery .dg-main{height:420px;background:linear-gradient(140deg,#252A31,#39414C);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:64px;font-weight:900;position:relative}
.detail-gallery .dg-main .cert{position:absolute;top:16px;left:16px;background:rgba(255,255,255,.88);color:var(--navy);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.detail-gallery .dg-thumbs{display:flex;gap:10px;padding:12px;background:#fff;border-top:1px solid var(--border)}
.detail-gallery .dg-thumb{flex:1;height:72px;border-radius:10px;border:2px solid var(--border);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--navy);font-weight:800;font-size:13px;background:var(--bg-light);transition:border-color .2s}
.detail-gallery .dg-thumb.active,.detail-gallery .dg-thumb:hover{border-color:var(--accent)}
.detail-info h1{font-size:28px;color:var(--navy);line-height:1.35;margin-bottom:14px}
.detail-info .di-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.detail-info .di-tags span{font-size:12px;font-weight:600;background:rgba(232,163,61,.1);color:var(--navy-3);padding:5px 12px;border-radius:999px;border:1px solid rgba(232,163,61,.25)}
.spec-table{width:100%;border-collapse:collapse;margin:6px 0 22px;font-size:14px}
.spec-table td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:top}
.spec-table td:first-child{color:var(--muted);width:110px;font-weight:600}
.spec-table td:last-child{color:var(--ink)}
.di-price-box{background:var(--bg-light);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:22px}
.di-price-box .dp-label{font-size:13px;color:var(--muted);margin-bottom:6px}
.di-price-box .dp-price{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:4px}
.di-price-box .dp-note{font-size:12px;color:var(--muted)}
.di-actions{display:flex;gap:14px;flex-wrap:wrap}
.di-actions .btn{min-width:170px}

/* ---------- Detail tabs ---------- */
.detail-tabs{display:flex;gap:6px;border-bottom:2px solid var(--border);margin-top:64px;flex-wrap:wrap}
.detail-tabs button{background:none;border:none;padding:12px 20px;font-size:15px;font-weight:600;color:var(--muted);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;font-family:inherit;transition:color .2s,border-color .2s}
.detail-tabs button.active{color:var(--accent);border-color:var(--accent)}
.tab-panel{display:none;padding:28px 4px}
.tab-panel.active{display:block}
.tab-panel h3{font-size:20px;color:var(--navy);margin-bottom:14px}
.tab-panel p{color:var(--muted);font-size:14px;max-width:820px;margin-bottom:10px}
.feat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:8px}
.feat-list li{display:flex;gap:12px;align-items:flex-start;background:var(--bg-light);border:1px solid var(--border);border-radius:10px;padding:14px 16px;font-size:14px;color:var(--ink)}
.feat-list li .ck{flex:0 0 22px;height:22px;border-radius:50%;background:var(--accent);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:800}
.app-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.app-grid span{font-size:13px;background:#fff;border:1px solid var(--border);padding:7px 16px;border-radius:999px;color:var(--ink)}
.delivery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.delivery-grid .dl{background:var(--bg-light);border:1px solid var(--border);border-radius:10px;padding:16px}
.delivery-grid .dl b{display:block;font-size:14px;color:var(--navy);margin-bottom:4px}
.delivery-grid .dl span{font-size:13px;color:var(--muted)}

/* ---------- Video lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:20px}
.lightbox.open{display:flex}
.lightbox .lb-backdrop{position:absolute;inset:0;background:rgba(26,30,36,.78);backdrop-filter:blur(4px)}
.lightbox .lb-panel{position:relative;background:linear-gradient(140deg,#252A31,#3C4550);border-radius:16px;width:min(880px,100%);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:#C7CDD4;flex-direction:column;gap:12px;box-shadow:var(--shadow-lg)}
.lightbox .lb-close{position:absolute;top:-14px;right:-14px;background:#fff;border:none;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:16px;box-shadow:var(--shadow);color:var(--navy)}
.lightbox .lb-play{width:76px;height:76px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 0 0 12px rgba(232,163,61,.25)}
.lightbox .lb-text{font-size:14px;color:#C7CDD4}

@media(max-width:1024px){
  .detail-grid{grid-template-columns:1fr;gap:40px}
  .detail-gallery{position:static}
}
@media(max-width:720px){
  .feat-list,.delivery-grid{grid-template-columns:1fr}
  .detail-tabs button{padding:10px 12px;font-size:14px}
}

/* ---------- Language switch links ---------- */
.lang-switch a{display:flex;align-items:center;padding:7px 12px;font-size:13px;font-weight:600;color:var(--muted);text-decoration:none;font-family:inherit;border-radius:0;transition:background .2s}
.lang-switch a:hover{background:var(--bg-light);color:var(--navy)}
.lang-switch button:disabled{cursor:default}

/* ---------- Product art (SVG illustrations) ---------- */
.prod-thumb{overflow:hidden}
.prod-thumb::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,.22),transparent 45%);pointer-events:none}
.prod-thumb .pt-art{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);width:72%;max-width:230px;opacity:.96;pointer-events:none;z-index:1;filter:drop-shadow(0 8px 16px rgba(0,0,0,.22))}
.prod-thumb .cert,.prod-thumb .hot{z-index:2}
.detail-gallery .dg-main{overflow:hidden}
.detail-gallery .dg-main .pt-art{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);width:56%;max-width:300px;opacity:.96;pointer-events:none;z-index:1;filter:drop-shadow(0 10px 20px rgba(0,0,0,.25))}
.detail-gallery .dg-main .cert{z-index:2}

/* ============ JPC Diamond Tools industrial additions ============ */
:root{--amber:#FFB020;--steel:#2C3E50}
.hero-industrial{position:relative;background:linear-gradient(135deg,#1A1E24 0%,#252A31 45%,#39414C 100%);color:#fff;overflow:hidden}
.hero-industrial::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.hero-industrial::after{content:"";position:absolute;inset:0;background:radial-gradient(760px 420px at 80% 18%,rgba(255,176,32,.16),transparent 60%),radial-gradient(620px 380px at 12% 90%,rgba(232,163,61,.14),transparent 60%);pointer-events:none}
.hero-industrial .hero-inner{position:relative;z-index:2}
.btn-amber{background:var(--amber);color:#23272E}
.btn-amber:hover{background:#f5a300;color:#111;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,176,32,.4)}
.btn-glow:hover{box-shadow:0 0 24px rgba(232,163,61,.55)}
.notice-bar{background:var(--amber);color:#23272E;text-align:center;padding:10px 16px;font-size:14px;font-weight:700}
.notice-bar a{text-decoration:underline;font-weight:800}
/* home category cards */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cat-card{position:relative;border-radius:16px;overflow:hidden;color:#fff;min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;padding:30px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;cursor:pointer}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card .cc-bg{position:absolute;inset:0;z-index:0}
.cat-card .cc-body{position:relative;z-index:1;background:linear-gradient(180deg,transparent,rgba(26,30,36,.88));margin:-30px;padding:30px;display:flex;flex-direction:column;justify-content:flex-end;min-height:280px}
.cat-card h3{font-size:20px;font-weight:800;margin-bottom:6px}
.cat-card p{font-size:13px;color:#D6DCE3;max-width:360px}
.cat-card .cc-more{margin-top:12px;font-size:13px;font-weight:700;color:var(--amber)}
/* industry cards */
.industry-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.industry-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px 18px;text-align:center;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.industry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.industry-card .ic-badge{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,rgba(232,163,61,.16),rgba(37,42,49,.1));color:var(--navy-3);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:900;margin:0 auto 12px}
.industry-card h4{font-size:14px;color:var(--navy)}
/* map placeholder */
.map-placeholder{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--border);height:340px;background:linear-gradient(135deg,#E9EDF0,#DCE2E8);display:flex;align-items:center;justify-content:center}
.map-placeholder .mp-pin{width:52px;height:52px;border-radius:50% 50% 50% 0;background:var(--accent);transform:rotate(-45deg);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(232,163,61,.4)}
.map-placeholder .mp-pin span{transform:rotate(45deg);color:#fff;font-size:22px}
.map-placeholder .mp-note{position:absolute;left:0;right:0;bottom:0;background:rgba(26,30,36,.82);color:#D6DCE3;font-size:12px;padding:8px 16px;text-align:center}
/* PDF download */
.dl-card{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.dl-card .dl-icon{flex:0 0 48px;height:56px;border-radius:8px;background:linear-gradient(180deg,#e0533d,#c0392b);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;font-weight:800}
.dl-card .dl-icon b{font-size:15px}
.dl-card h4{font-size:15px;color:var(--navy);margin-bottom:2px}
.dl-card p{font-size:13px;color:var(--muted)}
.dl-card .btn{margin-left:auto;flex:0 0 auto}
@media(max-width:1024px){ .industry-grid{grid-template-columns:repeat(3,1fr)} .cat-grid{grid-template-columns:1fr} }
@media(max-width:720px){ .industry-grid{grid-template-columns:repeat(2,1fr)} .dl-card{flex-wrap:wrap} .dl-card .btn{margin-left:0} }

/* ============ v1.1: Top bar + language switcher ============ */
.topbar{background:linear-gradient(90deg,#1A1E24,#252A31);color:#C7CDD4;font-size:13px;position:relative;z-index:120}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:42px;gap:16px}
.topbar-left{display:flex;gap:22px;align-items:center}
.topbar-left a{display:inline-flex;align-items:center;gap:7px;color:#C7CDD4;transition:color .2s}
.topbar-left a:hover{color:#fff}
.tb-ic{color:var(--accent-2);font-style:normal}
.topbar-right{display:flex;align-items:center;gap:14px}
.topbar-msg{background:none;border:none;color:var(--amber);font-weight:700;cursor:pointer;font-family:inherit;font-size:13px;text-decoration:underline;text-underline-offset:3px;padding:0}
.topbar-msg:hover{color:#ffc65c}
.lang-drop{position:relative}
.lang-drop-btn{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;padding:5px 12px;border-radius:6px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;transition:background .2s}
.lang-drop-btn:hover{background:rgba(255,255,255,.16)}
.lang-drop-btn .caret{font-size:10px;opacity:.8;transition:transform .2s}
.lang-drop.open .caret{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;background:#fff;color:var(--ink);border-radius:12px;box-shadow:var(--shadow-lg);min-width:200px;padding:6px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s ease;z-index:300;max-height:70vh;overflow:auto;list-style:none}
.lang-drop.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu li{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink)}
.lang-menu li:hover{background:var(--bg-light)}
.lang-menu li.active{background:rgba(232,163,61,.13);color:var(--navy-3);font-weight:700}
[dir="rtl"] .lang-menu{right:auto;left:0}

/* ============ v1.1: Fullscreen hero carousel ============ */
.hero-carousel{position:relative;height:calc(100vh - 114px);min-height:620px;color:#fff;overflow:hidden;background:#1A1E24}
.hc-slides,.hc-slide{position:absolute;inset:0}
.hc-slide{opacity:0;visibility:hidden;transition:opacity .9s ease,visibility .9s}
.hc-slide.active{opacity:1;visibility:visible;z-index:1}
.hc-media{position:absolute;inset:0}
.hc-media img,.hc-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hc-img{animation:kenburns 8s ease-out forwards}
.hc-fallback{object-fit:cover}
@keyframes kenburns{from{transform:scale(1.1)}to{transform:scale(1)}}
.hc-scrim{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(26,30,36,.86) 0%,rgba(26,30,36,.6) 40%,rgba(26,30,36,.12) 78%),
  linear-gradient(0deg,rgba(26,30,36,.55),transparent 45%)}
[dir="rtl"] .hc-scrim{background:
  linear-gradient(270deg,rgba(26,30,36,.86) 0%,rgba(26,30,36,.6) 40%,rgba(26,30,36,.12) 78%),
  linear-gradient(0deg,rgba(26,30,36,.55),transparent 45%)}
.hc-content{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hc-inner{max-width:690px;padding:40px 0}
.hc-inner h1{font-size:52px;font-weight:900;line-height:1.14;letter-spacing:.5px;margin:16px 0 20px}
.hc-inner h1 .hl{color:var(--accent-2)}
.hc-lead{font-size:18px;color:#C7CDD4;max-width:580px;margin-bottom:32px}
.hc-inner .hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hc-top{position:absolute;top:20px;right:26px;z-index:7;display:flex;align-items:center;gap:10px}
[dir="rtl"] .hc-top{right:auto;left:26px}
.hc-counter{font-size:13px;font-weight:700;letter-spacing:2px;color:rgba(255,255,255,.88);background:rgba(26,30,36,.5);border:1px solid rgba(255,255,255,.2);padding:5px 13px;border-radius:999px}
.hc-pause{background:rgba(26,30,36,.5);border:1px solid rgba(255,255,255,.2);color:#fff;width:30px;height:30px;border-radius:50%;cursor:pointer;font-size:10px;display:flex;align-items:center;justify-content:center;transition:background .2s}
.hc-pause:hover{background:rgba(232,163,61,.8)}
.hc-progress{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(255,255,255,.16);z-index:7}
.hc-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.hero-carousel.playing .hc-progress-bar{animation:progress 6s linear forwards}
@keyframes progress{from{width:0}to{width:100%}}
.hc-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:7;width:52px;height:52px;border-radius:50%;border:1px solid rgba(255,255,255,.35);background:rgba(26,30,36,.45);color:#fff;font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .25s,transform .25s}
.hc-arrow:hover{background:rgba(232,163,61,.85)}
.hc-arrow:active{transform:translateY(-50%) scale(.95)}
.hc-prev{left:26px}
.hc-next{right:26px}
.hc-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:7;display:flex;gap:10px}
.hc-dots button{width:11px;height:11px;border-radius:50%;border:none;background:rgba(255,255,255,.4);cursor:pointer;transition:all .25s;padding:0}
.hc-dots button:hover{background:rgba(255,255,255,.7)}
.hc-dots button.active{width:32px;border-radius:999px;background:var(--accent)}
.hc-scroll{position:absolute;bottom:20px;right:28px;z-index:6;font-size:11px;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.55)}
[dir="rtl"] .hc-scroll{right:auto;left:28px}

/* ============ v1.1: About / global ============ */
.about-global{position:relative;color:#fff;overflow:hidden}
.ag-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(.9)}
.about-global::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,28,34,.94) 0%,rgba(24,28,34,.82) 45%,rgba(24,28,34,.35) 100%)}
[dir="rtl"] .about-global::after{background:linear-gradient(270deg,rgba(24,28,34,.94) 0%,rgba(24,28,34,.82) 45%,rgba(24,28,34,.35) 100%)}
.ag-inner{position:relative;z-index:2;padding:104px 24px}
.ag-copy{max-width:640px}
.ag-copy .sec-title{color:#fff}
.ag-copy p{color:#C7CDD4;font-size:16px;margin-bottom:16px}
.ag-copy .btn{margin-top:8px}

/* ============ v1.1: Resources ============ */
.res-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center}
.res-visual img{border-radius:16px;box-shadow:var(--shadow-lg);width:100%;display:block}
.res-list{margin-top:26px;display:grid;gap:12px}
.res-list li{position:relative;padding-left:30px;color:#D6DCE3;font-size:15px}
.res-list li::before{content:"\2713";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:rgba(232,163,61,.2);color:var(--accent-2);font-size:11px;font-weight:900;display:flex;align-items:center;justify-content:center}
[dir="rtl"] .res-list li{padding-left:0;padding-right:30px}
[dir="rtl"] .res-list li::before{left:auto;right:0}

/* ============ v1.1: Product lineup ============ */
.lineup-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.lineup-card{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:26px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.lineup-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(232,163,61,.4)}
.lineup-card::after{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:0;transition:opacity .25s}
.lineup-card:hover::after{opacity:1}
.lc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.lc-head img{width:52px;height:52px;object-fit:contain}
.lc-count{font-size:12px;font-weight:800;color:var(--accent);background:rgba(232,163,61,.1);border:1px solid rgba(232,163,61,.25);padding:4px 10px;border-radius:999px;white-space:nowrap}
.lineup-card h3{font-size:17px;font-weight:800;color:var(--navy)}
.lineup-card p{font-size:13px;color:var(--muted);flex:1}
.lineup-card .cc-more{margin-top:6px;font-size:13px;font-weight:700;color:var(--amber)}
.lineup-cta{background:linear-gradient(160deg,#252A31,#39414C);border-color:transparent;color:#fff}
.lineup-cta h3{color:#fff}
.lineup-cta p{color:#B7C0CA}
.lineup-cta .lc-count{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);color:var(--accent-2)}

/* ============ v1.1: Workshops ============ */
.workshops{background:var(--bg-light)}
.ws-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
.ws-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.ws-points span{font-size:13px;font-weight:700;color:var(--navy-3);background:#fff;border:1px solid rgba(232,163,61,.3);padding:8px 16px;border-radius:999px}
.ws-visual img{border-radius:16px;box-shadow:var(--shadow-lg);width:100%;display:block}

/* ============ v1.1: Feature layers ============ */
.feat-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center}
.feat-layers{position:relative;border-radius:18px;padding:44px 40px;background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.12);display:grid;gap:12px}
.fl{display:flex;align-items:center;min-height:54px;border-radius:10px;padding:0 18px;font-size:15px;font-weight:700;letter-spacing:.4px}
.fl span{position:relative;z-index:1;color:#fff}
.fl-1{background:linear-gradient(90deg,#F5BB5C,#E8A33D)}
.fl-2{background:linear-gradient(90deg,#39414C,#2D333C)}
.fl-3{background:linear-gradient(90deg,#2D333C,#252A31)}
.fl-4{background:linear-gradient(90deg,#252A31,#1A1E24);border:1px solid rgba(255,255,255,.14)}
.fl-cap{display:flex;justify-content:center;margin-top:6px}
.fl-cap img{width:86px;height:86px;opacity:.95;filter:drop-shadow(0 10px 18px rgba(0,0,0,.35))}
.feat-apps h3{font-size:22px;color:#fff;margin-bottom:18px}
.app-chips{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.app-chips span{font-size:14px;font-weight:600;color:#fff;background:rgba(232,163,61,.14);border:1px solid rgba(232,163,61,.4);padding:10px 20px;border-radius:999px;transition:background .2s}
.app-chips span:hover{background:rgba(232,163,61,.35)}
.feat-note{display:flex;flex-wrap:wrap;gap:10px}
.feat-note span{font-size:13px;color:#9AA4AF;border-bottom:1px dashed rgba(255,255,255,.25);padding-bottom:3px}

/* ============ v1.1: CTA full + contact band ============ */
.cta-full{background-size:cover;background-position:center;position:relative}
.cta-full::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,30,36,.88),rgba(26,30,36,.78))}
.cta-full .container{position:relative;z-index:2}
.cta-full h2{color:#fff;font-size:34px;font-weight:900;margin:12px 0 14px}
.cta-full p{color:#C7CDD4;max-width:640px;margin:0 auto 30px}
.contact-band{background:#fff}
.cb-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cb-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cb-actions .btn{min-width:200px}

/* ============ v1.1: responsive ============ */
@media(max-width:1024px){
  .topbar-left a:first-child{display:none}
  .hc-inner h1{font-size:40px}
  .hc-lead{font-size:16px}
  .hc-arrow{width:44px;height:44px;font-size:18px}
  .hc-prev{left:16px}.hc-next{right:16px}
  .res-grid,.ws-grid,.feat-grid{grid-template-columns:1fr;gap:44px}
  .lineup-grid{grid-template-columns:repeat(3,1fr)}
  .cb-grid{grid-template-columns:1fr;gap:24px}
  .cb-actions{justify-content:flex-start}
  .hero-carousel{min-height:560px}
}
@media(max-width:720px){
  .topbar-inner{height:38px}
  .topbar-left{display:none}
  .topbar-right{justify-content:flex-end;flex:1}
  .hc-inner h1{font-size:32px}
  .hc-lead{font-size:15px}
  .hc-inner .hero-ctas .btn{flex:1;justify-content:center}
  .hc-top{top:12px;right:14px}
  .hc-arrow{display:none}
  .hc-dots{bottom:20px}
  .hc-scroll{display:none}
  .lineup-grid{grid-template-columns:1fr 1fr}
  .ag-inner{padding:72px 24px}
  .cta-full h2{font-size:26px}
}
@media(max-width:480px){
  .lineup-grid{grid-template-columns:1fr}
  .feat-layers{padding:30px 22px}
  .fl{font-size:13px;min-height:46px}
}

/* ============ v1.2: 透明悬浮导航栏（悬浮在 Hero 轮播图上 + 菜单散开） ============ */
/* 顶栏与主导航改为 fixed，初始透明、白字，压在 100vh 轮播图上 */
.topbar{position:fixed;top:0;left:0;right:0;z-index:130;background:linear-gradient(180deg,rgba(22,26,32,.78),rgba(22,26,32,.32) 72%,rgba(22,26,32,0));border-bottom:1px solid transparent;transition:background .3s,box-shadow .3s}
.site-header{position:fixed;top:42px;left:0;right:0;z-index:120;background:linear-gradient(180deg,rgba(22,26,32,.55),rgba(22,26,32,.22) 78%,rgba(22,26,32,0));border-bottom:1px solid transparent;transition:background .3s,box-shadow .3s,border-color .3s}
body.scrolled-page .topbar{background:linear-gradient(90deg,#1A1E24,#252A31);box-shadow:0 2px 12px rgba(0,0,0,.2)}
.site-header.scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 6px 24px rgba(37,42,49,.08);border-color:var(--border)}

/* 透明态：文字变白、悬浮在轮播图上 */
.site-header:not(.scrolled) .logo{color:#fff}
.site-header:not(.scrolled) .logo small{color:rgba(255,255,255,.72)}
.site-header:not(.scrolled) .logo .logo-mark{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#1A1E24}
.site-header:not(.scrolled) .nav a{color:#fff}
.site-header:not(.scrolled) .nav a:hover{color:var(--accent-2);background:rgba(255,255,255,.12)}
.site-header:not(.scrolled) .nav a.active{color:var(--accent-2)}
.site-header:not(.scrolled) .menu-toggle{color:#fff;border-color:rgba(255,255,255,.5)}
.topbar-left a{color:#fff}
.topbar-left a:hover{color:var(--accent-2)}

/* 导航菜单项间距散开 */
.nav{gap:22px}
.nav a{padding:10px 14px}

/* Hero 轮播改为满屏 100vh，让透明导航悬浮其上 */
.hero-carousel{height:100vh;min-height:640px}
.hc-content{padding-top:70px}
/* 轮播计数/暂停移到导航下方，避免被固定导航遮挡 */
.hc-top{top:132px}
@media(max-width:720px){ .hc-top{top:124px} }

/* 内页 hero 与提示条让出固定导航高度 */
.page-hero{padding:176px 0 84px}
.notice-bar{margin-top:114px}
.error-wrap{padding-top:160px}

/* 移动端：透明态菜单按钮 + 下拉面板白底深字 */
@media(max-width:720px){
  .site-header{top:38px}
  .nav.open{background:#fff}
  .nav.open a{color:var(--ink)}
  .nav.open a:hover{color:var(--accent);background:rgba(232,163,61,.06)}
  .nav.open a.active{color:var(--accent)}
}
@media(max-width:1024px){
  .nav{gap:12px}
  .nav a{padding:10px 10px}
}

/* ============ v1.3: 纯透明悬浮导航（去掉磨砂/渐变）+ 菜单间距加大 ============ */
/* 顶栏与导航透明态：完全透明，无渐变、无磨砂 */
.topbar{background:transparent}
.site-header:not(.scrolled){background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none}
.site-header.scrolled{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}
body.scrolled-page .topbar{background:linear-gradient(90deg,#1A1E24,#252A31);backdrop-filter:none}

/* 菜单项：间距进一步散开，大写 + 字距 + 下划线动效（参考图红色框选导航风格） */
.nav{gap:64px}
.nav a{position:relative;text-transform:uppercase;font-size:14px;letter-spacing:2px;padding:10px 0;color:#fff}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;background:var(--accent-2);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;border-radius:2px}
[dir="rtl"] .nav a::after{transform-origin:right}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.site-header:not(.scrolled) .nav a{color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.45)}
.site-header:not(.scrolled) .nav a:hover,.site-header:not(.scrolled) .nav a.active{color:var(--accent-2)}
.site-header:not(.scrolled) .logo{text-shadow:0 1px 3px rgba(0,0,0,.4)}

/* 滚动后的导航：白底深色文字，无磨砂 */
.site-header.scrolled .nav a{color:var(--ink);text-shadow:none;text-transform:uppercase;font-size:14px;letter-spacing:2px}
.site-header.scrolled .nav a::after{background:var(--accent)}
.site-header.scrolled .nav a:hover,.site-header.scrolled .nav a.active{color:var(--accent)}

/* 响应式：间距逐级收窄 */
@media(max-width:1200px){ .nav{gap:44px} }
@media(max-width:1024px){ .nav{gap:28px} .nav a{letter-spacing:1px} }
@media(max-width:720px){
  .nav{gap:4px}
  .nav a{text-transform:none;letter-spacing:0;font-size:15px;padding:10px 14px}
  .nav a::after{display:none}
  .nav.open a{color:var(--ink)}
  .site-header:not(.scrolled) .nav a{text-shadow:none}
}

/* ============ v1.4: 导航栏居中 + 字体放大（去除 Get a Quote 后的极简头部） ============ */
.header-inner{position:relative}
.nav{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);gap:72px}
.nav a{font-size:17px;letter-spacing:2px}
.site-header.scrolled .nav a{font-size:17px;letter-spacing:2px}
@media(max-width:1280px){ .nav{gap:56px} }
@media(max-width:1024px){ .nav{gap:32px} .nav a{font-size:15px;letter-spacing:1px} }
@media(max-width:720px){
  .nav{position:absolute;left:0;right:0;top:72px;transform:none;gap:4px}
  .nav a{font-size:15px;letter-spacing:0}
}

/* ============ v1.7: 页脚社交图标（SVG 品牌图标按钮） ============ */
.social-links{display:flex;gap:10px;margin-top:14px}
.social-links .social{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;transition:all .2s ease}
.social-links .social:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}
.social-links .social svg{width:18px;height:18px;fill:currentColor}

/* ============ v1.8: 修复内页顶部透明导航下露白底 ============ */
/* contact：公告条移到页头下方后，不再占用首屏白色区域 */
.notice-bar{margin-top:0}
/* 404：整页改为工业深色，透明导航下方为炭黑底 */
.error-wrap{background:linear-gradient(120deg,#1A1E24,#252A31 55%,#3C4550);color:#fff}
.error-wrap .error-code{color:#fff}
.error-wrap .error-code span{color:var(--accent)}
.error-wrap .error-msg{color:#fff}
.error-wrap .error-sub{color:#C7CDD4}
.error-wrap .btn-outline-dark{color:#fff;border-color:rgba(255,255,255,.55)}
.error-wrap .btn-outline-dark:hover{background:rgba(255,255,255,.12);color:#fff}

/* ============ v1.9: 分页按钮禁用态 ============ */
.pagination button:disabled{opacity:.4;cursor:not-allowed;background:var(--bg-light);color:var(--muted)}
.pagination button:disabled:hover{background:var(--bg-light)}

/* ============ v2.0: 首页重设计（Why Choose Us 四卡网格） ============ */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.why-grid .card{text-align:center}
.why-grid .card-icon{margin-left:auto;margin-right:auto}
.why-grid .card p{max-width:280px;margin:0 auto}
@media(max-width:1024px){ .why-grid{grid-template-columns:repeat(2,1fr)} }
@media(max-width:720px){ .why-grid{grid-template-columns:1fr} }

/* ============ v2.1: 产品实拍图卡片 ============ */
.prod-thumb{overflow:hidden;background:#fff}
.prod-thumb .pt-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}

/* ===== product detail: real photo gallery (generated) ===== */
.detail-gallery .dg-thumbs{flex-wrap:wrap}
.detail-gallery .dg-thumb{flex:0 0 84px;height:72px;padding:0;overflow:hidden}
.detail-gallery .dg-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.detail-gallery .dg-main{background:#fff;position:relative}
.detail-gallery .dg-main .pt-art{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transform:none;padding:16px}