:root{--mono:'SF Mono','JetBrains Mono',Consolas,monospace}
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;transition:background .3s ease,color .3s ease}
  @media (prefers-reduced-motion:no-preference){
    @keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
    @keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}
    @keyframes bubbleUp{0%{transform:translateY(0);opacity:0}15%{opacity:.9}100%{transform:translateY(-150px);opacity:0}}
    @keyframes wave{0%,100%{transform:translateX(-2px) scaleY(1)}50%{transform:translateX(2px) scaleY(1.12)}}
    @keyframes led{0%,100%{box-shadow:0 0 5px #e63950,0 0 10px rgba(230,57,80,.45)}50%{box-shadow:0 0 10px #e63950,0 0 20px rgba(230,57,80,.75)}}
  }
  a{color:inherit;text-decoration:none}
  /* ===== Theme A: dark (night) ===== */
  body.theme-dark{
    --bg:#05070c;--bg-alt:#0a0f17;--panel:#0d1522;--ink:#f2f6fb;--muted:#a8b5c6;--faint:#7c8b9e;
    --line:rgba(148,180,255,.18);--line-soft:rgba(148,180,255,.10);
    --header-bg:rgba(6,9,15,.75);--nav-ink:#e8eef5;
    --accent:#38bdf8;--accent-h:#0ea5e9;
    --grad:linear-gradient(90deg,#22d3ee,#3b82f6);
    --card-shadow:0 10px 30px rgba(0,0,0,.35);
    --chip-bg:rgba(56,189,248,.12);
    --tbl-hover:rgba(56,189,248,.07);--th-text:#93a7c0;
    --input-bg:#0b1320;
    --hero-bg:#000;
    --hero-glow:radial-gradient(760px 420px at 50% -8%,rgba(56,189,248,.24),transparent 65%),radial-gradient(520px 340px at 85% 30%,rgba(34,211,238,.10),transparent 60%);
    --hero-sub:#a9b7c8;
    --banner-bg:linear-gradient(135deg,#062033,#0b2447);
    --footer-bg:#030508;--footer-text:#7c8b9e;--footer-head:#c9d6e4;
  }
  /* ===== Theme B: light (day) ===== */
  body.theme-biz{
    --bg:#ffffff;--bg-alt:#f4f6fa;--panel:#ffffff;--ink:#0f2233;--muted:#5c6b7a;--faint:#8a97a5;
    --line:#e3e7ee;--line-soft:#eceff4;
    --header-bg:rgba(255,255,255,.94);--nav-ink:#0f2233;
    --accent:#0b5ed7;--accent-h:#094fb4;
    --grad:linear-gradient(90deg,#0b5ed7,#17a2c2);
    --card-shadow:0 1px 2px rgba(15,34,51,.05),0 10px 28px rgba(15,34,51,.06);
    --chip-bg:#eaf2fc;
    --tbl-hover:#f6f9fc;--th-text:#8a97a5;
    --input-bg:#ffffff;
    --hero-bg:linear-gradient(135deg,#0b2a52 0%,#10407f 100%);
    --hero-glow:radial-gradient(760px 420px at 50% -8%,rgba(255,255,255,.14),transparent 65%),radial-gradient(520px 340px at 85% 30%,rgba(23,162,194,.22),transparent 60%);
    --hero-sub:#cfe0f0;
    --banner-bg:linear-gradient(135deg,#0b5ed7,#12a5c4);
    --footer-bg:#0b2a52;--footer-text:#b9cde4;--footer-head:#ffffff;
  }
  /* ===== Icons ===== */
  .ico{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
  .ico-sm{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
  .ico-chip{width:46px;height:46px;border-radius:12px;background:var(--chip-bg);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:14px;transition:.25s}
  .card:hover .ico-chip{background:var(--grad);color:#fff}
  /* ===== Navigation ===== */
  header{position:sticky;top:0;z-index:100;background:var(--header-bg);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line-soft)}
  .nav{max-width:1024px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:56px}
  .brand{display:flex;align-items:center;gap:10px}
  .logo-img{height:36px;width:auto;max-width:150px;object-fit:contain}
  .logo-mark{width:28px;height:28px;border-radius:7px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:10px;color:#fff}
  .logo-name{font-weight:600;font-size:14px;color:var(--nav-ink)}
  nav.menu{display:flex;align-items:center;gap:8px}
  /* NAV-LAYOUT-BEGIN */
  @media(min-width:1041px){ nav.menu{flex:1;justify-content:space-between;margin-left:34px} }
  /* NAV-LAYOUT-END */
  nav.menu a{color:var(--nav-ink);padding:7px 14px;border-radius:980px;font-size:13px;font-weight:500;transition:.15s;opacity:.85;white-space:nowrap}
  nav.menu a:hover{background:var(--chip-bg);opacity:1}
  nav.menu a.active{opacity:1;font-weight:600}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--grad);color:#fff;font-weight:500;padding:11px 26px;border-radius:980px;font-size:15px;cursor:pointer;border:none;transition:.2s;font-family:inherit}
  .btn:hover{transform:scale(1.02);color:#fff;box-shadow:0 6px 20px rgba(0,0,0,.18)}
  .btn-nav{padding:6px 16px;font-size:12.5px;margin-left:6px}
  .btn-white{background:#fff;color:#1d1d1f}
  .btn-white:hover{background:#f5f5f7;color:#1d1d1f}
  .btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
  .btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff}
  .btn-ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}
  .btn-ghost:hover{background:var(--chip-bg);color:var(--accent-h)}
  .hamburger{display:none;background:none;border:none;color:var(--nav-ink);font-size:20px;cursor:pointer;padding:4px 8px}
  @media(max-width:1040px){
    nav.menu{position:fixed;top:56px;left:0;right:0;background:var(--panel);flex-direction:column;align-items:stretch;padding:12px 20px;border-bottom:1px solid var(--line-soft);display:none;box-shadow:0 20px 40px rgba(0,0,0,.15)}
    nav.menu.open{display:flex}
    nav.menu a{padding:12px 10px;border-radius:10px}
    .hamburger{display:block}
  }
  /* ===== Page containers ===== */
  .page{display:none}
  .page.active{display:block;animation:fadeIn .35s ease}
  .wrap{max-width:1024px;margin:0 auto;padding:0 20px}
  section.block{padding:110px 0}
  .kicker{color:var(--accent);font-weight:600;font-size:12px;letter-spacing:3px;margin-bottom:14px;font-family:var(--mono)}
  h1{font-size:clamp(34px,5vw,56px);line-height:1.08;font-weight:600;letter-spacing:-.015em;color:var(--ink);margin-bottom:16px}
  h2{font-size:clamp(28px,3.6vw,44px);line-height:1.1;font-weight:600;letter-spacing:-.015em;color:var(--ink);margin-bottom:12px}
  h3{font-size:19px;font-weight:600;margin-bottom:8px;color:var(--ink)}
  .sub{color:var(--muted);max-width:700px;font-size:17px}
  .center{text-align:center}
  .center .sub{margin:0 auto}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
  /* ===== Hero ===== */
  .hero{position:relative;background:var(--hero-bg);color:#fff;overflow:hidden;padding:110px 0 0;text-align:center;transition:background .3s ease}
  .hero::before{content:"";position:absolute;inset:0;background:var(--hero-glow),linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:auto,42px 42px,42px 42px;pointer-events:none}
  .hero .wrap{position:relative;z-index:2}
  .hero .kicker{color:#7dd3fc}
  .hero h1{color:#fff;font-size:clamp(38px,6vw,72px);font-weight:600;letter-spacing:-.02em;max-width:900px;margin:0 auto 18px}
  .hero .sub{color:var(--hero-sub);font-size:19px;max-width:680px;margin:0 auto 30px}
  .hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:70px}
  .charge-card{display:inline-flex;gap:36px;align-items:center;background:rgba(255,255,255,.06);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.14);border-radius:24px;padding:32px 44px;margin:0 auto;transform:translateY(40px);box-shadow:0 30px 80px rgba(0,0,0,.45)}
  .cc-head{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:2px;color:#a1a1a6;font-weight:600;margin-bottom:14px}
  .cc-dot{width:7px;height:7px;border-radius:50%;background:#e63950;animation:led 1.6s infinite}
  .cc-batt-body{display:flex;align-items:center;gap:16px}
  .cc-batt-svg{width:110px;height:44px;color:#64d2ff;filter:drop-shadow(0 0 8px rgba(100,210,255,.45))}
  .cc-batt-svg .seg{opacity:.18;transition:opacity .2s}
  .cc-batt-svg .seg.on{opacity:1}
  .cc-info b{font-size:26px;font-weight:600;display:block;font-family:var(--mono);color:#fff}
  .cc-info span{font-size:11px;color:#a1a1a6;font-family:var(--mono)}
  .cc-tank{position:relative;width:88px;height:160px;border:1.5px solid rgba(100,210,255,.4);border-radius:16px;background:linear-gradient(180deg,rgba(100,210,255,.06),rgba(0,0,0,.2));box-shadow:inset 0 0 30px rgba(100,210,255,.08);overflow:hidden}
  .cc-tank::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:repeating-linear-gradient(180deg,rgba(255,255,255,.35) 0 2px,transparent 2px 9px);z-index:4}
  .cc-liquid{position:absolute;left:0;right:0;bottom:0;height:0%;background:linear-gradient(0deg,rgba(0,113,227,.95),rgba(100,210,255,.8));z-index:1;transition:height .05s linear}
  .cc-liquid::before{content:"";position:absolute;top:-6px;left:0;right:0;height:9px;background:rgba(100,210,255,.9);border-radius:50%;box-shadow:0 0 16px rgba(100,210,255,.8);animation:wave 1.6s ease-in-out infinite}
  .cc-bubbles{position:absolute;left:0;right:0;top:0;bottom:0;z-index:2;transition:opacity .4s ease}
  .cc-bubble{position:absolute;bottom:4px;width:4px;height:4px;border-radius:50%;background:rgba(100,210,255,.85);animation:bubbleUp 2.4s linear infinite}
  .b1{left:26%}.b2{left:48%;animation-delay:.8s}.b3{left:70%;animation-delay:1.6s}
  .cc-foot{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:#a1a1a6;margin-top:12px}
  .cc-foot b{color:#34c759;font-weight:600}
  .hero-stats{background:rgba(255,255,255,.04);border-top:1px solid rgba(255,255,255,.1);margin-top:80px;padding:46px 0}
  .hs-wrap{max-width:1024px;margin:0 auto;padding:0 20px;display:flex;justify-content:center;gap:80px;flex-wrap:wrap}
  .stat b{font-size:clamp(34px,4vw,52px);font-weight:600;display:block;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
  .stat span{font-size:13px;color:var(--hero-sub)}
  @media(max-width:760px){.charge-card{flex-direction:column;gap:22px;padding:26px 30px}.hero-stats{margin-top:56px}.hs-wrap{gap:34px}}
  /* ===== Trust bar ===== */
  .trustbar{background:var(--bg-alt);border-bottom:1px solid var(--line-soft);padding:16px 0}
  .trustbar .wrap{display:flex;flex-wrap:wrap;gap:10px 36px;justify-content:center;font-size:13px;color:var(--muted);font-weight:500}
  .trustbar span{display:flex;align-items:center;gap:7px}
  .trustbar .ico-sm{color:var(--accent)}
  /* ===== Cards ===== */
  .grid{display:grid;gap:22px}
  .g3{grid-template-columns:repeat(3,1fr)}
  .g2{grid-template-columns:repeat(2,1fr)}
  @media(max-width:860px){.g3,.g2{grid-template-columns:1fr}}
  .card{background:var(--panel);border:1px solid var(--line-soft);border-radius:24px;padding:34px;transition:.25s;box-shadow:var(--card-shadow)}
  .card:hover{transform:translateY(-4px)}
  .card p{color:var(--muted);font-size:15px}
  .card .lead{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:6px}
  /* ===== Featured certification cards ===== */
  .card-feature{position:relative;background:var(--panel);border:1px solid var(--accent);border-radius:24px;padding:34px;box-shadow:var(--card-shadow);transition:.25s;overflow:hidden}
  .card-feature::after{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad)}
  .card-feature:hover{transform:translateY(-4px)}
  .card-feature .ico-chip{background:var(--grad);color:#fff}
  .card-feature .lead{font-size:22px}
  .card-feature p{color:var(--muted);font-size:15px}
  .cert-badge{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:1px;padding:3px 10px;border-radius:980px;background:var(--grad);color:#fff;font-family:var(--mono);margin-bottom:14px}
  .cert-list{margin-top:14px;display:grid;gap:8px}
  .cert-list span{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--muted)}
  .cert-list .ico-sm{color:var(--accent);margin-top:3px;flex:none}
  .banner{background:var(--banner-bg);color:#fff;border-radius:28px;padding:60px;text-align:center;box-shadow:var(--card-shadow)}
  .banner .kicker{color:rgba(255,255,255,.75);margin-bottom:10px}
  .banner h3{font-size:clamp(26px,3.4vw,38px);font-weight:600;color:#fff}
  .banner p{color:rgba(255,255,255,.88);font-size:16px;max-width:560px;margin:8px auto 26px}
  /* ===== Tables ===== */
  .tbl-scroll{overflow-x:auto;border-radius:20px;background:var(--panel);box-shadow:var(--card-shadow);border:1px solid var(--line-soft);margin-top:24px}
  table{width:100%;border-collapse:collapse;font-size:14px;min-width:680px}
  th{text-align:left;padding:14px 18px;font-size:11.5px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:var(--th-text);border-bottom:1px solid var(--line-soft)}
  td{padding:14px 18px;border-bottom:1px solid var(--line-soft);color:var(--ink)}
  tr:last-child td{border-bottom:none}
  tr:hover td{background:var(--tbl-hover)}
  .model{display:inline-flex;align-items:center;gap:8px;font-weight:600}
  .model .ico-sm{color:var(--accent)}
  .tbl-note{font-size:12.5px;color:var(--faint);margin-top:12px}
  .tag{display:inline-block;font-size:10.5px;font-weight:600;padding:2px 10px;border-radius:980px;background:var(--chip-bg);color:var(--accent);font-family:var(--mono)}
  .tag-warn{background:rgba(230,57,80,.1);color:#e63950}
  .spec-block{margin-top:60px}
  /* ===== Timeline ===== */
  .timeline{margin-top:30px;border-left:1px solid var(--line);padding-left:32px}
  .tl{position:relative;margin-bottom:22px}
  .tl::before{content:"";position:absolute;left:-36px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--accent)}
  .tl b{font-size:17px;font-weight:600;color:var(--ink)}
  .tl span{color:var(--muted);font-size:14.5px}
  /* ===== Process steps ===== */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
  @media(max-width:860px){.steps{grid-template-columns:repeat(2,1fr)}}
  .step{background:var(--panel);border:1px solid var(--line-soft);border-radius:18px;padding:26px 14px;text-align:center;font-size:13.5px;font-weight:500;color:var(--muted);box-shadow:var(--card-shadow);transition:.2s}
  .step:hover{transform:translateY(-3px);color:var(--ink)}
  .step b{display:block;font-family:var(--mono);font-size:15px;color:var(--accent);margin-bottom:8px;font-weight:600}
  /* ===== Contact & form ===== */
  .contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:24px}
  @media(max-width:860px){.contact-grid{grid-template-columns:1fr}}
  label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin:0 0 6px}
  input,select,textarea{width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;margin-bottom:16px;background:var(--input-bg);color:var(--ink)}
  input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(0,113,227,.12)}
  input::placeholder,textarea::placeholder{color:var(--faint)}
  textarea{min-height:130px;resize:vertical}
  /* ===== Inquiry form validation ===== */
  .hp-field{position:absolute!important;left:-9999px!important;top:-9999px!important;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}
  .form-fb{display:none;font-size:13px;padding:11px 14px;border-radius:11px;margin-bottom:14px;line-height:1.55}
  .form-fb.on{display:block}
  .form-fb.ok{background:rgba(52,211,153,.13);color:#34d399;border:1px solid rgba(52,211,153,.32)}
  .form-fb.err{background:rgba(248,113,113,.12);color:#f87171;border:1px solid rgba(248,113,113,.3)}
  .form-fb.wait{background:var(--chip-bg);color:var(--accent);border:1px solid var(--line)}
  body.theme-biz .form-fb.ok{color:#047857;background:rgba(52,211,153,.12)}
  body.theme-biz .form-fb.err{color:#b91c1c;background:rgba(248,113,113,.1)}
  .field-err{border-color:#f87171!important;box-shadow:0 0 0 4px rgba(248,113,113,.1)!important}
  .btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}
  .kv{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:14.5px}
  .kv b{color:var(--ink);min-width:80px;font-weight:600}
  .kv .ico-sm{color:var(--accent);margin-top:4px;flex:none}
  .kv span{color:var(--muted)}
  /* ===== Floating action buttons ===== */
  .wa-float{position:fixed;bottom:22px;right:22px;z-index:200;background:#34c759;color:#fff;font-weight:600;padding:13px 22px;border-radius:980px;box-shadow:0 8px 24px rgba(52,199,89,.4);font-size:14px;transition:.2s;display:inline-flex;align-items:center;gap:8px}
  .wa-float:hover{transform:scale(1.04);color:#fff}
  .pack-float{position:fixed;right:22px;bottom:88px;z-index:200;background:var(--grad);color:#fff;font-weight:600;padding:13px 22px;border-radius:980px;box-shadow:0 8px 24px rgba(0,0,0,.25);font-size:14px;transition:.2s;display:inline-flex;align-items:center;gap:8px}
  .pack-float:hover{transform:scale(1.04);color:#fff}
  .storage-float{position:fixed;right:22px;bottom:154px;z-index:200;background:linear-gradient(135deg,#059669,#22d3ee);color:#fff;font-weight:600;padding:13px 22px;border-radius:980px;box-shadow:0 8px 24px rgba(5,150,105,.35);font-size:14px;transition:.2s;display:inline-flex;align-items:center;gap:8px}
  .storage-float:hover{transform:scale(1.04);color:#fff}
  .storage-float .ico-sm{fill:none;stroke:currentColor}
  body.theme-dark header .logo-img{filter:invert(1)}
  footer .logo-img{filter:invert(1)}
  .pack-float .ico-sm,.wa-float .ico-sm{fill:none;stroke:currentColor}
  @media(max-width:640px){.wa-float,.pack-float,.storage-float{padding:10px 14px;font-size:12px}}
  /* ===== Theme switcher ===== */
  .theme-switch{position:fixed;left:14px;bottom:54px;z-index:999;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:7px;display:flex;gap:6px;box-shadow:var(--card-shadow);backdrop-filter:blur(10px)}
  .theme-switch span{font-size:11px;color:var(--faint);align-self:center;padding:0 6px;font-weight:600}
  .theme-hint{font-size:10.5px;font-weight:500!important;font-family:var(--mono);white-space:nowrap;padding:0 4px 0 0!important;opacity:.85}
  @media(max-width:700px){.theme-hint{display:none}}
  .theme-switch button{border:none;background:transparent;color:var(--muted);font-weight:600;font-size:12px;padding:8px 14px;border-radius:9px;cursor:pointer;font-family:inherit}
  .theme-switch button:hover{color:var(--ink)}
  .theme-switch button.on{background:var(--grad);color:#fff}
  .preview-badge{position:fixed;left:14px;bottom:14px;z-index:999;background:var(--panel);color:var(--faint);border:1px solid var(--line);font-size:11px;font-weight:600;padding:5px 12px;border-radius:980px;box-shadow:var(--card-shadow)}
  /* ===== Cookie bar / Footer ===== */
  .cookie{position:fixed;bottom:0;left:0;right:0;z-index:300;background:var(--header-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--line-soft);padding:14px 22px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
  .cookie[hidden]{display:none}
  .cookie span.cookie-txt{max-width:760px}
  .cookie span.cookie-txt a{color:var(--accent);text-decoration:underline}
  .cookie-actions{display:flex;gap:10px;flex-wrap:wrap;margin-left:auto}
  footer{background:var(--footer-bg);padding:50px 0 0;font-size:12px;color:var(--footer-text);transition:background .3s ease}
  .foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:30px;padding-bottom:40px;border-bottom:1px solid var(--line-soft)}
  @media(max-width:860px){.foot-grid{grid-template-columns:1fr}}
  footer h4{color:var(--footer-head);font-size:12px;font-weight:600;margin-bottom:12px}
  footer a{display:block;color:var(--footer-text);margin-bottom:8px;font-size:12px}
  footer a:hover{color:var(--footer-head)}
  .legal{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;padding:20px 0 40px;font-size:12px;color:var(--footer-text)}
  .legal span{display:inline-flex;align-items:center;gap:6px}
  .legal .ico-sm{color:var(--footer-text)}
  .legal a{display:inline;color:var(--footer-text)}
  .legal a:hover{color:var(--footer-head)}
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
  .reveal.on{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.cc-batt-svg .seg{opacity:1}.cc-bubble{display:none}}

  /* Product Gallery */
  .product-gallery{margin:40px 0}
  .gallery-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
    gap:24px;
    margin-top:20px
  }
  .gallery-note{
    margin:14px 4px 0;
    font-size:12.5px;
    line-height:1.5;
    color:var(--muted);
    text-align:center
  }
  .pdx-media .gallery-note{margin:10px 0 0;text-align:center}
  .gallery-item{
    background:var(--panel);
    border:1px solid var(--line-soft);
    border-radius:16px;
    padding:20px;
    text-align:center;
    transition:.25s;
    box-shadow:var(--card-shadow)
  }
  .gallery-item:hover{
    transform:translateY(-4px);
    box-shadow:0 12px 40px rgba(0,0,0,.15)
  }
  .gallery-item img{
    width:100%;
    height:220px;
    object-fit:contain;
    border-radius:12px;
    background:var(--bg-alt);
    padding:10px
  }
  .gallery-label{
    margin-top:16px;
    font-size:15px;
    font-weight:600;
    color:var(--ink)
  }
  @media(max-width:768px){
    .gallery-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
    .gallery-item img{height:180px}
  }
  .gallery-item{cursor:pointer;position:relative}
  .gallery-item:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
  .gallery-more{display:inline-flex;align-items:center;gap:6px;margin-top:6px;font-size:11.5px;font-weight:600;letter-spacing:.4px;color:var(--accent);font-family:var(--mono)}
  .gallery-item:hover .gallery-more{text-decoration:underline}
  .gallery-hint{font-size:13px;color:var(--faint);margin:-14px 0 0}

  /* ===== Product detail modal (click a gallery card) ===== */
  .pdx[hidden]{display:none!important}
  .pdx{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:3vh 16px}
  .pdx-bg{position:absolute;inset:0;background:rgba(3,6,12,.74);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
  .pdx-panel{position:relative;display:flex;flex-direction:column;width:100%;max-width:1020px;max-height:94vh;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.5);overflow:hidden}
  @media (prefers-reduced-motion:no-preference){
    @keyframes pdxIn{from{opacity:0;transform:translateY(16px) scale(.985)}to{opacity:1;transform:none}}
    .pdx-panel{animation:pdxIn .24s cubic-bezier(.16,1,.3,1)}
  }
  .pdx-head{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px 14px 26px;background:var(--panel);border-bottom:1px solid var(--line-soft)}
  .pdx-head .pdx-series{font-family:var(--mono);font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:var(--faint)}
  .pdx-close{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--bg-alt);color:var(--ink);font-size:17px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s;font-family:inherit;flex:none}
  .pdx-close:hover{background:var(--grad);color:#fff;border-color:transparent}
  .pdx-scroll{overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain}
  .pdx-body{display:grid;grid-template-columns:minmax(0,40%) minmax(0,1fr);gap:34px;padding:28px}
  @media(max-width:900px){.pdx-body{grid-template-columns:1fr;gap:22px;padding:20px}}
  .pdx-media{min-width:0;background:var(--bg-alt);border:1px solid var(--line-soft);border-radius:20px;padding:20px;display:flex;align-items:center;justify-content:center;min-height:240px}
  .pdx-info{min-width:0}
  .pdx-media img{width:100%;max-height:360px;object-fit:contain;display:block}
  .pdx-kicker{font-family:var(--mono);font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:600;margin-bottom:8px}
  .pdx-title{font-size:clamp(23px,3vw,32px);line-height:1.15;font-weight:600;color:var(--ink);margin-bottom:10px}
  .pdx-desc{color:var(--muted);font-size:15px;margin-bottom:20px}
  .pdx-specs{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin-bottom:22px}
  @media(max-width:560px){.pdx-specs{grid-template-columns:1fr}}
  .pdx-spec{border-bottom:1px dashed var(--line-soft);padding-bottom:8px}
  .pdx-spec span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.8px;text-transform:uppercase;color:var(--th-text);margin-bottom:3px}
  .pdx-spec b{font-size:14.5px;font-weight:600;color:var(--ink)}
  .pdx-sub{font-family:var(--mono);font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--th-text);font-weight:600;margin-bottom:2px}
  .pdx .tbl-scroll{margin-top:10px}
  .pdx .tbl-scroll table{min-width:460px;font-size:13.5px}
  .pdx .tbl-scroll th,.pdx .tbl-scroll td{padding:11px 14px}
  @media(max-width:560px){ .pdx .tbl-scroll table{min-width:0;font-size:12.5px} .pdx .tbl-scroll th,.pdx .tbl-scroll td{padding:10px 11px} }
  .pdx-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:26px}
  .pdx-cta .btn{padding:10px 22px;font-size:14px}
  body.pdx-open{overflow:hidden}

  /* ===== Language switcher (i18n) ===== */
  .lang-switch{position:relative;flex:none}
  .lang-btn{display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid var(--line);color:var(--nav-ink);border-radius:980px;padding:6px 12px;font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit}
  .lang-btn:hover{background:var(--chip-bg)}
  .lang-caret{font-size:9px;opacity:.7;line-height:1}
  .lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--card-shadow);padding:6px;list-style:none;margin:0;min-width:170px;display:none;z-index:600}
  .lang-switch.open .lang-menu{display:block}
  .lang-menu li{padding:9px 14px;border-radius:9px;font-size:13px;color:var(--nav-ink);cursor:pointer;white-space:nowrap}
  .lang-menu li:hover{background:var(--chip-bg)}
  .lang-menu li.on{color:var(--accent);font-weight:700}
  .lang-menu li.on::after{content:" ✓"}
  @media(max-width:1040px){.lang-btn{padding:5px 9px;margin-right:6px}}