/* roulang page: index */
:root {
      --ink: #2E333A;
      --amber: #D2642A;
      --teal: #2A6F62;
      --paper: #F3F1EC;
      --mist: #E7E4DE;
      --dark: #171A1E;
      --line: #C9C4BB;
      --cream: #FBFAF6;
      --muted: #5E636B;
      --soft: #8A857C;
      --white: #FFFdf8;
      --danger: #B42318;
      --ok: #2A6F62;
      --radius: 8px;
      --shadow: 0 8px 24px rgba(23, 26, 30, .08);
      --shadow-sm: 0 4px 12px rgba(23, 26, 30, .06);
      --space: 24px;
      --container: 1200px;
      --topbar: 32px;
      --navh: 70px;
      --focus: 2px solid #D2642A;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.8;
      color: var(--ink);
      background: var(--paper);
      text-rendering: optimizeLegibility;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--ink); text-decoration: none; }
    a:hover { color: var(--amber); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; }
    h1, h2, h3, p, ul, ol, figure { margin: 0; }
    ul, ol { padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    .skip {
      position: absolute; left: -999px; top: 8px; z-index: 1000;
      background: var(--amber); color: #fff; padding: 10px 16px; border-radius: 6px;
    }
    .skip:focus { left: 12px; outline: var(--focus); }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
    .site-header { position: relative; z-index: 80; }
    .topbar {
      height: var(--topbar);
      background: var(--ink);
      color: #E8E4DC;
      font-size: 12px;
      line-height: var(--topbar);
    }
    .topbar-inner { display: flex; justify-content: space-between; gap: 16px; align-items: center; }
    .topbar a { color: #E8E4DC; }
    .topbar a:hover { color: #F3C7A8; }
    .topbar-left, .topbar-right { display: flex; gap: 18px; align-items: center; min-height: 32px; }
    .dot-ok { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); display: inline-block; margin-right: 6px; }
    .nav-wrap {
      background: var(--cream);
      border-bottom: 1px solid var(--line);
      transition: box-shadow .2s ease;
    }
    .nav-wrap.is-sticky {
      position: sticky; top: 0; z-index: 90;
      box-shadow: var(--shadow-sm);
    }
    .nav-inner {
      min-height: var(--navh);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 20px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--ink); min-height: 44px;
    }
    .logo-mark {
      width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 6px;
      display: grid; place-items: center; background: #EFECE4; position: relative; flex: 0 0 36px;
    }
    .logo-mark span {
      width: 16px; height: 16px; border: 2px solid var(--ink); border-radius: 3px;
      box-shadow: 5px 5px 0 0 var(--amber);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text b { font-size: 15px; font-weight: 700; }
    .logo-text small { font-size: 12px; color: var(--muted); font-weight: 500; }
    .menu { display: flex; justify-content: center; gap: 4px; flex-wrap: wrap; }
    .menu a {
      display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px;
      font-size: 14px; color: var(--ink); position: relative;
    }
    .menu a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 10px; height: 2px;
      background: var(--amber); transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
    }
    .menu a:hover, .menu a.is-active { color: var(--amber); }
    .menu a.is-active::after, .menu a:hover::after { transform: scaleX(1); }
    .nav-cta { display: flex; align-items: center; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: 8px; border: 1px solid transparent;
      font-weight: 600; letter-spacing: .02em; transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
    }
    .btn:focus-visible, .chip:focus-visible, .faq-q:focus-visible, .icon-btn:focus-visible, .quiz-opt:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: var(--focus); outline-offset: 2px;
    }
    .btn-primary { background: var(--ink); color: #fff; }
    .btn-primary:hover { background: var(--amber); color: #fff; transform: translateY(-2px); }
    .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
    .btn-ghost:hover { border-color: var(--amber); color: #fff; background: rgba(210,100,42,.18); }
    .btn-line { background: transparent; color: var(--ink); border-color: var(--line); }
    .btn-line:hover { border-color: var(--teal); color: var(--teal); }
    .btn-line.amber:hover { border-color: var(--amber); color: var(--amber); }
    .icon-btn {
      width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 8px; background: #fff; display: none;
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .icon-btn i { width: 18px; height: 2px; background: var(--ink); display: block; }
    .drawer-mask { display: none; }
    .hero {
      position: relative; min-height: 680px; background: var(--dark); color: #F4F0E8; overflow: hidden;
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity .45s steps(6, end);
    }
    .slide.is-on { opacity: 1; visibility: visible; }
    .slide img {
      width: 100%; height: 100%; object-fit: cover; filter: saturate(.86) contrast(1.05);
    }
    .slide::after {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(23,26,30,.78) 0%, rgba(23,26,30,.42) 46%, rgba(23,26,30,.22) 100%),
        linear-gradient(0deg, rgba(23,26,30,.55), transparent 42%);
    }
    .hero-grid {
      position: relative; z-index: 2;
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px;
      padding: 54px 0 86px; align-items: stretch;
    }
    .brand-tag { font-size: 13px; color: #E2C2A8; margin-bottom: 12px; display: flex; gap: 10px; align-items: center; }
    .brand-tag::before { content: ""; width: 18px; height: 2px; background: var(--amber); }
    .hero h1, .slide-title {
      font-size: 40px; line-height: 1.25; font-weight: 700; max-width: 16em; color: #FBF8F1;
    }
    .hero-copy { margin-top: 18px; max-width: 38em; color: #E4DFD6; font-size: 16px; line-height: 1.85; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
    .hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
    .chip {
      display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 0 12px;
      border: 1px solid rgba(201,196,187,.35); border-radius: 6px; background: rgba(23,26,30,.42);
      color: #F3EEE4; font-size: 13px;
    }
    .chip b { color: var(--amber); font-variant-numeric: tabular-nums; }
    .hero-quiz {
      background: rgba(247,244,238,.94); color: var(--ink); border: 1px solid var(--line);
      border-radius: 10px; padding: 22px; box-shadow: var(--shadow); align-self: start;
    }
    .hero-quiz h3 { font-size: 18px; margin-bottom: 6px; }
    .hero-quiz .hint { font-size: 13px; color: var(--muted); margin-bottom: 14px; line-height: 1.7; }
    .q-label { font-size: 13px; font-weight: 650; margin: 12px 0 8px; }
    .q-opts { display: flex; flex-wrap: wrap; gap: 8px; }
    .quiz-opt {
      min-height: 40px; padding: 0 12px; border-radius: 6px; border: 1px solid var(--line);
      background: #fff; color: var(--ink);
    }
    .quiz-opt.is-on { background: var(--ink); color: #fff; border-color: var(--ink); }
    .quiz-result {
      margin-top: 16px; padding: 14px; border: 1px dashed var(--line); border-radius: 8px; background: #F3F1EC; min-height: 92px;
    }
    .quiz-result .k { font-size: 12px; color: var(--muted); }
    .quiz-result strong { display: block; font-size: 18px; margin: 4px 0; }
    .countdown {
      display: flex; gap: 8px; align-items: center; font-size: 13px; margin-top: 12px; color: var(--muted);
    }
    .countdown b { color: var(--amber); font-variant-numeric: tabular-nums; }
    .hero-ctrl {
      position: absolute; left: 0; right: 0; bottom: 18px; z-index: 3;
      display: flex; justify-content: space-between; align-items: center;
      width: min(var(--container), calc(100% - 40px)); margin: 0 auto;
    }
    .dots { display: flex; gap: 8px; }
    .dots button {
      width: 28px; height: 6px; border: 0; border-radius: 2px; background: rgba(255,255,255,.32); padding: 0;
    }
    .dots button.is-on { background: var(--amber); }
    .play-btn {
      width: 44px; height: 44px; border-radius: 8px; border: 1px solid rgba(255,255,255,.3);
      background: rgba(23,26,30,.45); color: #fff; font-size: 12px;
    }
    section { padding: 72px 0; }
    .sec-paper { background: var(--paper); }
    .sec-mist { background: var(--mist); }
    .sec-head { margin-bottom: 28px; max-width: 46em; }
    .sec-kicker { font-size: 13px; color: var(--amber); font-weight: 650; margin-bottom: 8px; }
    h2 { font-size: 26px; line-height: 1.35; font-weight: 700; color: var(--ink); }
    .sec-head p { margin-top: 14px; color: var(--muted); font-size: 16px; }
    .dash {
      display: grid; grid-template-columns: 1.4fr 1.4fr 1fr 1fr; grid-template-rows: auto auto; gap: 16px;
    }
    .panel {
      background: var(--cream); border: 1px solid var(--line); border-radius: 8px;
      box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
    }
    .panel::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--ink); }
    .panel.amber::before { background: var(--amber); }
    .panel:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #E0B089; }
    .panel, .card, .story, .quote, .news-card, .cert { transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .dash-big { padding: 22px 22px 18px; min-height: 168px; }
    .dash-sm { padding: 16px 16px 14px; }
    .metric-name { font-size: 14px; color: var(--muted); }
    .metric-val { font-size: 40px; font-weight: 720; line-height: 1.1; margin: 10px 0 8px; letter-spacing: -.03em; }
    .dash-sm .metric-val { font-size: 28px; }
    .metric-unit { font-size: 14px; font-weight: 500; margin-left: 4px; }
    .metric-tag {
      display: inline-flex; min-height: 26px; padding: 0 8px; border-radius: 4px;
      background: #E8F1EE; color: var(--teal); font-size: 12px; align-items: center;
    }
    .metric-tag.warn { background: #F7E6DA; color: var(--amber); }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
    .media-frame {
      border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #ddd;
      box-shadow: var(--shadow);
    }
    .media-frame img { width: 100%; height: 420px; object-fit: cover; }
    .spec-list { margin-top: 16px; display: grid; gap: 10px; }
    .spec-list li {
      display: grid; grid-template-columns: 92px 1fr; gap: 10px; padding: 10px 0;
      border-bottom: 1px solid var(--line); font-size: 15px;
    }
    .spec-list b { color: var(--muted); font-weight: 550; }
    .badge {
      display: inline-flex; align-items: center; min-height: 24px; padding: 0 8px;
      border-radius: 4px; font-size: 12px; background: #E8F1EE; color: var(--teal); margin-right: 6px;
    }
    .badge.orange { background: #F7E6DA; color: var(--amber); }
    .badge.ink { background: var(--ink); color: #fff; }
    .matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .m-card {
      background: var(--cream); border: 1px solid var(--line); border-radius: 8px; padding: 18px 18px 16px 20px;
      box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
    }
    .m-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--ink); }
    .m-card:nth-child(2n)::before { background: var(--amber); }
    .m-card:hover { transform: translateY(-3px); border-color: #D9B08A; box-shadow: var(--shadow); }
    .m-no { font-size: 12px; color: var(--soft); letter-spacing: .08em; }
    .m-card h3 { font-size: 18px; margin: 6px 0 10px; }
    .m-card li { font-size: 14px; color: var(--muted); padding-left: 12px; position: relative; margin-bottom: 6px; }
    .m-card li::before { content: ""; width: 5px; height: 5px; background: var(--amber); position: absolute; left: 0; top: 10px; }
    .products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .p-card { background: var(--cream); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-sm); }
    .p-card:hover { transform: translateY(-4px); border-color: var(--amber); box-shadow: var(--shadow); }
    .p-card img { width: 100%; height: 210px; object-fit: cover; }
    .p-body { padding: 16px 16px 18px; }
    .p-body h3 { font-size: 18px; margin: 8px 0; }
    .p-body p { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
    .p-params { font-size: 13px; color: var(--ink); display: grid; gap: 4px; margin: 10px 0 14px; }
    .scene-box { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; align-items: stretch; }
    .scene-list { display: grid; gap: 12px; }
    .scene-item {
      background: var(--cream); border: 1px solid var(--line); border-radius: 8px; padding: 16px 16px 14px;
      display: grid; gap: 6px;
    }
    .scene-item:hover { border-color: var(--amber); transform: translateY(-2px); }
    .scene-item h3 { font-size: 18px; }
    .scene-item p { font-size: 14px; color: var(--muted); }
    .scene-visual { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; min-height: 100%; }
    .scene-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 460px; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--cream); }
    .compare { min-width: 720px; }
    .compare th, .compare td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
    .compare thead th { background: var(--ink); color: #F6F1EA; font-weight: 600; }
    .compare tbody tr:last-child td { border-bottom: 0; }
    .compare td:nth-child(3) { color: var(--teal); font-weight: 600; }
    .dark {
      background: var(--dark); color: #F3EEE6; padding: 84px 0; position: relative; overflow: hidden;
    }
    .dark-bg {
      position: absolute; inset: 0; background: url("/assets/images/35faa278b3193c8a.webp") center/cover no-repeat;
      opacity: .18;
    }
    .dark-grid { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
    .plate {
      font-size: 34px; line-height: 1.35; font-weight: 700; max-width: 12em;
      border-left: 4px solid var(--amber); padding-left: 18px;
    }
    .case-slice { display: grid; gap: 14px; }
    .case-card { border: 1px solid #3A3F46; border-radius: 8px; padding: 16px; background: rgba(23,26,30,.55); }
    .case-card h3 { font-size: 18px; margin-bottom: 6px; color: #fff; }
    .case-card p { font-size: 14px; color: #C9C4BB; }
    .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 18px; height: 1px; background: var(--line);
    }
    .t-node { background: var(--cream); border: 1px solid var(--line); border-radius: 8px; padding: 18px 14px 14px; position: relative; }
    .t-node::before {
      content: ""; width: 10px; height: 10px; background: var(--amber); border-radius: 50%;
      position: absolute; top: 14px; left: 16px;
    }
    .t-node h3 { font-size: 16px; margin: 8px 0 8px 14px; }
    .t-node p { font-size: 13px; color: var(--muted); }
    .t-days { display: inline-block; margin-top: 8px; font-size: 12px; color: var(--amber); }
    .story-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 16px; }
    .story { background: var(--cream); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
    .story img { width: 100%; height: 220px; object-fit: cover; }
    .story-body { padding: 16px; }
    .story h3 { font-size: 18px; margin-bottom: 8px; }
    .story p { font-size: 14px; color: var(--muted); }
    .side .story-body { padding-top: 16px; }
    .side img { height: 140px; }
    .stats {
      background: var(--ink); color: #F6F1EA; padding: 36px 0;
    }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .stat { border-left: 1px solid #4A5058; padding: 8px 0 8px 18px; }
    .stat b { display: block; font-size: 32px; line-height: 1.1; color: #fff; }
    .stat span { font-size: 13px; color: #C9C4BB; }
    .quotes { display: grid; grid-template-columns: 1.1fr .9fr 1fr; gap: 16px; align-items: start; }
    .quote { background: var(--cream); border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
    .quote:nth-child(2) { margin-top: 28px; }
    .quote:nth-child(3) { margin-top: 12px; }
    .quote:nth-child(4) { grid-column: 2 / 4; margin-top: -10px; }
    .quote:hover { transform: translateY(-3px); border-color: var(--amber); }
    .quote p { font-size: 15px; margin: 10px 0; }
    .quote .who { font-size: 13px; color: var(--muted); }
    .news { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
    .news-card { background: var(--cream); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
    .news-card img { width: 100%; height: 280px; object-fit: cover; }
    .news-card .txt { padding: 16px; }
    .news-card h3 { font-size: 20px; margin-bottom: 8px; }
    .news-list { display: grid; gap: 12px; }
    .news-row {
      display: grid; grid-template-columns: 120px 1fr; gap: 12px; background: var(--cream);
      border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
    }
    .news-row img { width: 120px; height: 92px; object-fit: cover; }
    .news-row h3 { font-size: 16px; margin-bottom: 4px; }
    .news-row p, .news-card p { font-size: 13px; color: var(--muted); }
    .certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .cert {
      background: var(--cream); border: 1px solid var(--line); border-radius: 8px; padding: 16px 14px;
      border-top: 3px solid var(--teal);
    }
    .cert h3 { font-size: 16px; margin: 8px 0; }
    .cert p { font-size: 13px; color: var(--muted); }
    .cert .code { font-size: 12px; color: var(--soft); }
    .quick { display: flex; flex-wrap: wrap; gap: 10px; }
    .qchip {
      min-height: 44px; padding: 0 14px; border-radius: 6px; border: 1px solid var(--line);
      background: var(--cream); color: var(--ink); font-size: 14px;
    }
    .qchip:hover, .qchip.is-on { border-color: var(--amber); color: var(--amber); }
    .faq { display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); border-radius: 8px; background: var(--cream); overflow: hidden; }
    .faq-q {
      width: 100%; text-align: left; min-height: 56px; padding: 12px 48px 12px 16px; border: 0; background: transparent;
      font-weight: 650; position: relative; color: var(--ink);
    }
    .faq-q::after {
      content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
      width: 28px; height: 28px; border: 1px solid var(--line); border-radius: 6px; display: grid; place-items: center;
      font-size: 18px; color: var(--amber);
    }
    .faq-item.is-open .faq-q::after { content: "–"; }
    .faq-a { display: none; padding: 0 16px 16px; background: #EFECE6; color: var(--muted); font-size: 15px; }
    .faq-item.is-open .faq-a { display: block; }
    .consult-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; }
    .form {
      background: var(--cream); border: 1px solid var(--line); border-radius: 10px; padding: 22px; box-shadow: var(--shadow-sm);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 650; }
    input, select, textarea {
      min-height: 48px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; background: #fff; color: var(--ink);
    }
    textarea { min-height: 110px; resize: vertical; }
    .field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
    .err { color: var(--danger); font-size: 12px; min-height: 16px; }
    .form-note {
      margin-top: 12px; padding: 12px 14px; border-radius: 8px; font-size: 14px; display: none;
    }
    .form-note.ok { display: block; background: #E8F1EE; color: var(--teal); }
    .form-note.bad { display: block; background: #F8E8E6; color: var(--danger); }
    .sidebox {
      background: var(--ink); color: #F3EEE6; border-radius: 10px; padding: 22px; display: grid; gap: 14px;
    }
    .sidebox h3 { font-size: 20px; }
    .sidebox p, .sidebox a { color: #D8D3CB; font-size: 14px; }
    .sidebox a:hover { color: #F3C7A8; }
    .site-footer {
      background: #121417; color: #D5D0C7; padding: 48px 0 20px; font-size: 14px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.2fr .8fr .9fr .8fr; gap: 24px; }
    .site-footer h3 { color: #F6F1EA; font-size: 16px; margin-bottom: 10px; }
    .site-footer a { color: #D5D0C7; display: inline-flex; min-height: 32px; align-items: center; }
    .copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid #2A2E33; font-size: 12px; color: #9A958C; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    @media (max-width: 1280px) {
      .hero h1, .slide-title { font-size: 36px; }
      .dash { grid-template-columns: 1fr 1fr 1fr; }
      .dash-big:nth-child(1) { grid-column: 1 / 3; }
      .dash-big:nth-child(2) { grid-column: 1 / 3; }
    }
    @media (max-width: 1024px) {
      .nav-inner { grid-template-columns: auto auto; }
      .menu, .nav-cta { display: none; }
      .icon-btn { display: flex; justify-self: end; }
      .drawer-mask.is-open {
        display: block; position: fixed; inset: 0; background: rgba(23,26,30,.42); z-index: 95;
      }
      .menu.is-open {
        display: flex; flex-direction: column; position: fixed; right: 0; top: 0; bottom: 0; width: min(86vw, 360px);
        background: #FBFAF6; z-index: 96; padding: 84px 20px 24px; gap: 0; box-shadow: var(--shadow); overflow: auto;
      }
      .nav-cta.is-open {
        display: block; position: fixed; right: 20px; bottom: 24px; z-index: 97;
      }
      .hero-grid, .split, .scene-box, .dark-grid, .story-grid, .news, .consult-grid, .foot-grid { grid-template-columns: 1fr; }
      .matrix, .products, .certs, .stats-grid { grid-template-columns: 1fr 1fr; }
      .quotes { grid-template-columns: 1fr; }
      .quote:nth-child(2), .quote:nth-child(3), .quote:nth-child(4) { margin-top: 0; grid-column: auto; }
      .timeline { grid-template-columns: 1fr; }
      .timeline::before { left: 21px; right: auto; top: 12px; bottom: 12px; width: 1px; height: auto; }
      .media-frame img, .scene-visual img { height: 280px; min-height: 0; }
      .hero { min-height: 0; }
    }
    @media (max-width: 768px) {
      .topbar { height: auto; font-size: 12px; }
      .topbar-inner { flex-direction: column; align-items: flex-start; padding: 6px 0; line-height: 1.4; }
      .hero-grid { padding: 28px 0 72px; }
      .hero h1, .slide-title { font-size: 30px; }
      .hero-copy { font-size: 15px; }
      h2 { font-size: 24px; }
      section { padding: 56px 0; }
      .dash { grid-template-columns: 1fr 1fr; }
      .dash-big:nth-child(1), .dash-big:nth-child(2) { grid-column: auto; }
      .products { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .copy { flex-direction: column; }
      .plate { font-size: 26px; }
    }
    @media (max-width: 520px) {
      .container { width: min(100% - 28px, var(--container)); }
      .matrix, .certs, .stats-grid, .dash { grid-template-columns: 1fr 1fr; }
      .metric-val { font-size: 30px; }
      .stat b { font-size: 26px; }
      .news-row { grid-template-columns: 1fr; }
      .news-row img { width: 100%; height: 160px; }
      .topbar-left, .topbar-right { flex-wrap: wrap; gap: 8px; }
    }
    @media (max-width: 375px) {
      .hero h1, .slide-title { font-size: 28px; }
      .matrix, .certs { grid-template-columns: 1fr; }
      .hero-actions .btn { width: 100%; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }