/* roulang page: index */
:root {
      --c-primary: #E65C00;
      --c-primary-ink: #B84400;
      --c-accent: #1A6B6B;
      --c-warn: #E3B505;
      --c-bg: #F3EFE8;
      --c-paper: #FAF8F4;
      --c-dark: #1C1917;
      --c-dark-2: #2A2522;
      --c-text: #1F1B16;
      --c-muted: #6B645B;
      --c-line: #D4CFC5;
      --c-white: #FFFCFA;
      --radius: 4px;
      --radius-btn: 2px;
      --shadow: 0 8px 20px rgba(28, 25, 23, .06);
      --shadow-hover: 0 12px 28px rgba(28, 25, 23, .1);
      --container: 1240px;
      --gutter: 32px;
      --nav-h: 64px;
      --top-h: 44px;
      --font: "Noto Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --ease: 180ms ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font);
      font-size: 17px;
      line-height: 1.75;
      color: var(--c-text);
      background: var(--c-bg);
      overflow-x: hidden;
      min-width: 320px;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--c-accent); text-decoration: none; transition: color var(--ease); }
    a:hover { color: var(--c-primary); }
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--c-accent);
      outline-offset: 2px;
    }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.25; color: var(--c-text); margin: 0 0 16px; }
    h1 { font-size: clamp(28px, 4vw, 48px); }
    h2 { font-size: clamp(24px, 3vw, 34px); }
    h3 { font-size: 20px; font-weight: 700; }
    p { margin: 0 0 16px; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    .skip {
      position: absolute; left: -999px; top: 8px;
      background: var(--c-primary); color: #fff; padding: 8px 14px; z-index: 200;
    }
    .skip:focus { left: 8px; }
    .container {
      width: min(var(--container), calc(100% - var(--gutter) * 2));
      margin: 0 auto;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 22px;
      border-radius: var(--radius-btn); font-weight: 600; letter-spacing: 0.02em;
      transition: background var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease), border-color var(--ease);
      text-decoration: none; line-height: 1.2; white-space: nowrap;
    }
    .btn-primary {
      background: var(--c-primary); color: #fff;
      box-shadow: inset 0 -2px 0 rgba(0,0,0,.12);
    }
    .btn-primary:hover {
      background: var(--c-primary-ink); color: #fff;
      box-shadow: inset 0 2px 6px rgba(0,0,0,.18);
    }
    .btn-primary:active { transform: translateY(1px); }
    .btn-ghost {
      background: transparent; color: var(--c-white);
      border: 1px solid rgba(255,252,250,.55);
    }
    .btn-ghost:hover { background: rgba(255,252,250,.08); color: #fff; border-color: #fff; }
    .btn-line {
      background: transparent; color: var(--c-accent);
      border: 1px solid var(--c-accent);
    }
    .btn-line:hover { background: var(--c-accent); color: #fff; }
    .tag {
      display: inline-flex; align-items: center; gap: 6px;
      height: 26px; padding: 0 10px; font-size: 12px; font-weight: 600;
      background: rgba(26,107,107,.1); color: var(--c-accent);
      border: 1px solid rgba(26,107,107,.25); border-radius: 2px; letter-spacing: .04em;
    }
    .tag-orange { background: rgba(230,92,0,.1); color: var(--c-primary); border-color: rgba(230,92,0,.28); }
    .site-header { position: relative; z-index: 80; }
    .nav-top {
      background: var(--c-dark); color: #D8D2C8; font-size: 13px; height: var(--top-h);
      display: flex; align-items: center;
    }
    .nav-top .container {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .nav-top-brand { color: #E8E2D8; font-weight: 700; letter-spacing: .08em; }
    .nav-top-brand span { color: var(--c-primary); margin-left: 8px; font-weight: 800; }
    .nav-top-links { display: flex; align-items: center; gap: 8px; }
    .nav-top-links a, .nav-top-links span {
      color: #D8D2C8; min-height: 44px; display: inline-flex; align-items: center; padding: 0 8px;
    }
    .nav-top-links a:hover { color: #fff; }
    .nav-top-links .dot { width: 1px; height: 12px; background: #4A453F; padding: 0; }
    .nav-main {
      position: sticky; top: 0; z-index: 90;
      background: #EFEBE3; border-bottom: 1px solid var(--c-line);
      min-height: var(--nav-h);
    }
    .nav-main .container {
      display: flex; align-items: center; gap: 20px; min-height: var(--nav-h);
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--c-text); flex-shrink: 0;
    }
    .logo-mark {
      width: 36px; height: 36px; background: var(--c-primary); color: #fff;
      display: grid; place-items: center; border-radius: 2px; font-weight: 800; font-size: 14px;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.18);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; font-weight: 800; letter-spacing: -.02em; }
    .logo-text small { font-size: 11px; color: var(--c-muted); font-weight: 500; letter-spacing: .12em; }
    .nav-links {
      display: flex; align-items: center; gap: 2px; margin-left: auto; flex-wrap: wrap;
    }
    .nav-links a {
      color: var(--c-text); font-size: 14px; font-weight: 600;
      padding: 8px 10px; min-height: 44px; display: inline-flex; align-items: center;
      position: relative; white-space: nowrap;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 8px; height: 2px;
      background: var(--c-primary); transform: scaleX(0); transform-origin: left; transition: transform var(--ease);
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--c-primary-ink); }
    .nav-links a.is-active::after, .nav-links a:hover::after { transform: scaleX(1); }
    .nav-cta { margin-left: 8px; flex-shrink: 0; }
    .burger {
      display: none; width: 44px; height: 44px; margin-left: auto;
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .burger span {
      display: block; width: 20px; height: 2px; background: var(--c-text); transition: transform var(--ease), opacity var(--ease);
    }
    .nav-drawer-overlay {
      display: none; position: fixed; inset: 0; background: rgba(28,25,23,.55); z-index: 95;
    }
    body.menu-open { overflow: hidden; }
    body.menu-open .nav-drawer-overlay { display: block; }
    .hero { position: relative; background: var(--c-dark); }
    .hero-stage {
      position: relative; height: 82vh; min-height: 560px; max-height: 880px; overflow: hidden;
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity 500ms ease, visibility 500ms ease;
    }
    .slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .slide img { width: 100%; height: 100%; object-fit: cover; }
    .slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(28,25,23,.78) 0%, rgba(28,25,23,.52) 46%, rgba(28,25,23,.28) 100%);
    }
    .hero-grid {
      position: relative; z-index: 2; height: 100%;
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center;
      padding: 48px 0 92px;
    }
    .hero-copy { color: var(--c-white); max-width: 640px; }
    .hero-copy .tag { margin-bottom: 16px; background: rgba(227,181,5,.16); color: var(--c-warn); border-color: rgba(227,181,5,.35); }
    .hero-copy h1, .hero-copy h2 { color: #fff; margin-bottom: 14px; }
    .hero-copy p { color: #E4DED4; font-size: 16px; line-height: 1.8; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-card {
      background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--radius);
      box-shadow: var(--shadow); overflow: hidden; max-width: 420px; margin-left: auto;
    }
    .hero-card img { width: 100%; height: 168px; object-fit: cover; }
    .hero-card-body { padding: 16px 18px 18px; }
    .hero-card-body .model { font-size: 12px; color: var(--c-accent); font-weight: 700; letter-spacing: .08em; }
    .hero-card-body h3 { margin: 4px 0 10px; font-size: 18px; }
    .hero-card-body ul { margin: 0 0 14px; }
    .hero-card-body li {
      font-size: 13px; color: var(--c-muted); padding: 5px 0 5px 14px; position: relative; line-height: 1.5;
    }
    .hero-card-body li::before {
      content: ""; width: 6px; height: 6px; background: var(--c-primary); position: absolute; left: 0; top: 11px;
    }
    .hero-controls {
      position: absolute; z-index: 3; left: 0; right: 0; bottom: 78px;
    }
    .hero-controls .container { display: flex; align-items: center; gap: 10px; }
    .ctrl-btn {
      width: 44px; height: 44px; border: 1px solid rgba(255,252,250,.35); color: #fff;
      display: grid; place-items: center; border-radius: 2px; background: rgba(28,25,23,.35);
    }
    .ctrl-btn:hover { background: var(--c-primary); border-color: var(--c-primary); }
    .dots { display: flex; gap: 8px; margin-left: 8px; }
    .dots button {
      width: 10px; height: 10px; border-radius: 1px; background: rgba(255,252,250,.35);
    }
    .dots button.is-on { background: var(--c-primary); width: 22px; }
    .slotbar {
      position: relative; z-index: 4; background: #161311; color: #E8E2D8;
      border-top: 3px solid var(--c-primary);
      background-image: repeating-linear-gradient(-45deg, rgba(227,181,5,.07) 0 8px, transparent 8px 16px);
    }
    .slotbar .container {
      display: grid; grid-template-columns: auto 1fr auto auto; gap: 18px; align-items: center;
      min-height: 72px; padding: 10px 0;
    }
    .slot-kicker { font-size: 12px; letter-spacing: .16em; color: var(--c-warn); font-weight: 700; }
    .slot-title { font-size: 15px; font-weight: 700; color: #fff; }
    .countdown { display: flex; gap: 8px; align-items: center; }
    .count-box {
      min-width: 52px; background: #2A2420; border: 1px solid #3C352F; text-align: center; padding: 6px 4px; border-radius: 2px;
    }
    .count-box b {
      display: block; font-size: 20px; font-variant-numeric: tabular-nums; color: var(--c-primary); line-height: 1.1; font-weight: 800;
    }
    .count-box span { font-size: 11px; color: #A39A90; }
    .slot-model { font-size: 13px; color: #C9C1B6; }
    .slot-model strong { color: #fff; margin-right: 6px; }
    .section { padding: 104px 0; }
    .section-head { margin-bottom: 36px; max-width: 760px; }
    .section-head p { color: var(--c-muted); font-size: 16px; }
    .section-alt { background: var(--c-paper); }
    .intro-grid {
      display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center;
    }
    .intro-visual { position: relative; }
    .intro-visual img {
      width: 100%; height: 420px; object-fit: cover; border-radius: var(--radius);
      border: 1px solid var(--c-line); box-shadow: var(--shadow);
    }
    .intro-badge {
      position: absolute; left: 16px; bottom: 16px; background: var(--c-dark); color: #fff;
      padding: 12px 14px; border-radius: 2px; font-size: 13px; line-height: 1.5;
      border-left: 3px solid var(--c-primary);
    }
    .spec-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
    .spec-item {
      background: var(--c-paper); border: 1px solid var(--c-line); padding: 14px 16px; border-radius: var(--radius);
    }
    .spec-item b { display: block; color: var(--c-primary); font-variant-numeric: tabular-nums; font-size: 18px; }
    .spec-item span { font-size: 13px; color: var(--c-muted); }
    .matrix-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: stretch;
    }
    .matrix-photo { position: relative; min-height: 460px; }
    .matrix-photo img {
      width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--c-line);
    }
    .tracks { display: flex; flex-direction: column; gap: 10px; }
    .track {
      display: grid; grid-template-columns: 48px 1fr auto; gap: 12px; align-items: center;
      background: var(--c-paper); border: 1px solid var(--c-line); padding: 14px 16px;
      border-radius: var(--radius); box-shadow: var(--shadow); transition: transform var(--ease), border-color var(--ease);
      color: inherit;
    }
    .track:hover { transform: translateY(-3px); border-color: var(--c-primary); color: inherit; }
    .track-no {
      width: 40px; height: 40px; border: 1px solid var(--c-line); display: grid; place-items: center;
      font-weight: 800; color: var(--c-primary); font-variant-numeric: tabular-nums;
    }
    .track h3 { margin: 0 0 4px; font-size: 16px; }
    .track p { margin: 0; font-size: 13px; color: var(--c-muted); line-height: 1.55; }
    .track-go { color: var(--c-accent); font-size: 12px; font-weight: 700; white-space: nowrap; }
    .adv-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
    }
    .adv-card {
      background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--radius);
      padding: 22px 22px 20px; box-shadow: var(--shadow); transition: transform var(--ease), border-color var(--ease);
    }
    .adv-card:hover { transform: translateY(-3px); border-color: var(--c-primary); }
    .adv-ico {
      width: 40px; height: 40px; margin-bottom: 14px; color: var(--c-accent);
    }
    .adv-card h3 { font-size: 17px; margin-bottom: 8px; }
    .adv-card p { font-size: 14px; color: var(--c-muted); margin: 0; line-height: 1.7; }
    .prod-grid {
      display: grid; grid-template-columns: 1.35fr 1fr; grid-template-rows: auto auto; gap: 16px;
    }
    .prod-card {
      background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform var(--ease), border-color var(--ease);
    }
    .prod-card:hover { transform: translateY(-3px); border-color: var(--c-primary); }
    .prod-card.large { grid-row: 1 / 3; }
    .prod-card img { width: 100%; object-fit: cover; }
    .prod-card.large img { height: 280px; }
    .prod-card.small { display: grid; grid-template-columns: 140px 1fr; }
    .prod-card.small img { height: 100%; min-height: 160px; }
    .prod-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .prod-body .model { font-size: 12px; color: var(--c-accent); font-weight: 700; letter-spacing: .1em; }
    .prod-body h3 { margin: 0; font-size: 20px; }
    .prod-body ul { margin: 6px 0 10px; }
    .prod-body li { font-size: 14px; color: var(--c-muted); padding: 3px 0 3px 12px; position: relative; }
    .prod-body li::before { content: ""; width: 6px; height: 6px; background: var(--c-primary); position: absolute; left: 0; top: 11px; }
    .kpi {
      position: relative; overflow: hidden;
      background: #EBE4D8;
      background-image:
        repeating-linear-gradient(135deg, rgba(230,92,0,.05) 0 10px, transparent 10px 20px);
      border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line);
      padding: 72px 0;
    }
    .kpi-grid {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
    }
    .kpi-item {
      background: var(--c-paper); border: 1px solid var(--c-line); padding: 22px 16px; text-align: center; border-radius: var(--radius);
    }
    .kpi-item b {
      display: block; font-size: clamp(28px, 3vw, 40px); color: var(--c-primary);
      font-variant-numeric: tabular-nums; font-weight: 800; letter-spacing: -.03em; line-height: 1.1;
    }
    .kpi-item span { display: block; margin-top: 8px; font-size: 13px; color: var(--c-muted); }
    .timeline {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 6%; right: 6%; top: 27px; height: 2px; background: var(--c-line);
    }
    .step { padding: 0 10px; position: relative; }
    .step-no {
      width: 54px; height: 54px; border-radius: 2px; background: var(--c-dark); color: #fff;
      display: grid; place-items: center; font-weight: 800; margin-bottom: 14px; position: relative; z-index: 1;
      border-bottom: 3px solid var(--c-primary); font-variant-numeric: tabular-nums;
    }
    .step h3 { font-size: 16px; margin-bottom: 8px; }
    .step p { font-size: 13px; color: var(--c-muted); margin: 0; line-height: 1.65; }
    .idea {
      background: var(--c-dark); color: #E8E2D8; position: relative; overflow: hidden;
      background-image:
        repeating-linear-gradient(45deg, rgba(227,181,5,.055) 0 10px, transparent 10px 20px),
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: auto, 48px 48px, 48px 48px;
    }
    .idea .section-head h2, .idea h3 { color: #fff; }
    .idea .section-head p { color: #B7AFA6; }
    .idea-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
    .idea-quote {
      font-size: clamp(22px, 3vw, 32px); font-weight: 800; color: #fff; line-height: 1.4; letter-spacing: -.02em;
      border-left: 4px solid var(--c-primary); padding-left: 18px;
    }
    .compare { display: flex; flex-direction: column; gap: 12px; }
    .compare-row {
      display: grid; grid-template-columns: 88px 1fr 1fr; gap: 10px; align-items: stretch;
      background: rgba(250,248,244,.04); border: 1px solid rgba(212,207,197,.18); padding: 14px;
    }
    .compare-row .k { color: var(--c-warn); font-weight: 800; font-size: 13px; display: flex; align-items: center; }
    .compare-row div { font-size: 14px; line-height: 1.6; }
    .compare-row .old { color: #A39A90; }
    .compare-row .now { color: #F3EFE8; }
    .cases-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    }
    .case {
      position: relative; overflow: hidden; border-radius: var(--radius); min-height: 210px;
      border: 1px solid var(--c-line); color: inherit; display: block;
    }
    .case.large { grid-column: span 2; min-height: 300px; }
    .case img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
    .case-cap {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 16px;
      background: linear-gradient(180deg, transparent, rgba(28,25,23,.82));
      color: #fff;
    }
    .case-cap .meta { font-size: 12px; color: var(--c-warn); font-weight: 700; letter-spacing: .06em; }
    .case-cap h3 { color: #fff; font-size: 16px; margin: 4px 0 6px; }
    .case-cap p { margin: 0; font-size: 13px; color: #E4DED4; }
    .case:hover img { transform: scale(1.04); }
    .case img { transition: transform 400ms ease; }
    .stories { display: flex; flex-direction: column; gap: 16px; }
    .story {
      display: grid; grid-template-columns: 1.2fr .8fr; background: var(--c-paper);
      border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
    }
    .story-body { padding: 28px 32px; }
    .story-body .loc { font-size: 12px; color: var(--c-accent); font-weight: 700; letter-spacing: .08em; margin-bottom: 10px; }
    .story-body blockquote {
      margin: 0 0 12px; font-size: 16px; line-height: 1.8; color: var(--c-text); font-weight: 500;
    }
    .story-body .who { font-size: 13px; color: var(--c-muted); }
    .story img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
    .reviews {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .review {
      background: var(--c-paper); border: 1px solid var(--c-line); border-radius: 2px; padding: 18px 16px;
      box-shadow: var(--shadow);
    }
    .review-top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
    .avatar {
      width: 36px; height: 36px; background: #D9D2C7; color: var(--c-dark);
      display: grid; place-items: center; font-weight: 800; font-size: 14px; border-radius: 2px;
    }
    .stars { color: var(--c-warn); font-size: 12px; letter-spacing: 1px; }
    .review p { font-size: 13px; color: var(--c-muted); margin: 0 0 10px; line-height: 1.7; }
    .chip { font-size: 11px; border: 1px solid var(--c-line); padding: 2px 8px; color: var(--c-accent); font-weight: 600; }
    .topics {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
    }
    .topic {
      position: relative; min-height: 210px; overflow: hidden; border-radius: var(--radius);
      border: 1px solid var(--c-line); color: #fff; display: flex; align-items: flex-end;
    }
    .topic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .topic::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(28,25,23,.15), rgba(28,25,23,.78)); }
    .topic-body { position: relative; z-index: 1; padding: 18px; }
    .topic-body h3 { color: #fff; font-size: 18px; margin-bottom: 6px; }
    .topic-body p { color: #E4DED4; font-size: 13px; margin: 0 0 10px; }
    .topic-body span { color: var(--c-warn); font-size: 13px; font-weight: 700; }
    .news-list { display: flex; flex-direction: column; gap: 14px; }
    .news {
      display: grid; grid-template-columns: 220px 1fr; gap: 18px; background: var(--c-paper);
      border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
      color: inherit;
    }
    .news:hover { border-color: var(--c-primary); color: inherit; }
    .news img { width: 100%; height: 140px; object-fit: cover; }
    .news-body { padding: 16px 16px 16px 0; }
    .news-date {
      display: inline-block; font-size: 12px; color: var(--c-accent); font-weight: 700;
      border: 1px solid rgba(26,107,107,.3); padding: 2px 8px; margin-bottom: 8px;
    }
    .news h3 { font-size: 18px; margin-bottom: 6px; }
    .news p { font-size: 14px; color: var(--c-muted); margin: 0; }
    .more-link { margin-top: 18px; display: inline-flex; font-weight: 700; color: var(--c-accent); }
    .logo-wall {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
    }
    .partner {
      height: 76px; display: grid; place-items: center; text-align: center;
      border: 1px solid var(--c-line); background: #E7E1D7; color: #6E675F;
      font-weight: 700; font-size: 14px; filter: grayscale(1); opacity: .8;
      transition: filter var(--ease), opacity var(--ease), color var(--ease), border-color var(--ease);
      border-radius: 2px; padding: 8px;
    }
    .partner:hover { filter: grayscale(0); opacity: 1; color: var(--c-primary); border-color: var(--c-primary); }
    .faq-list { display: flex; flex-direction: column; gap: 8px; }
    .faq-item { border: 1px solid var(--c-line); background: var(--c-paper); border-radius: var(--radius); }
    .faq-q {
      width: 100%; text-align: left; padding: 16px 18px; font-weight: 700; font-size: 16px;
      display: flex; justify-content: space-between; gap: 12px; align-items: center; color: var(--c-text);
      min-height: 56px;
    }
    .faq-q .plus {
      width: 22px; height: 22px; border: 1px solid var(--c-line); display: grid; place-items: center;
      color: var(--c-primary); flex-shrink: 0; font-weight: 800;
    }
    .faq-a {
      display: none; padding: 0 18px 16px; color: var(--c-muted); font-size: 15px; line-height: 1.8;
      background: var(--c-paper); transition: padding 200ms ease;
    }
    .faq-item.open .faq-a { display: block; }
    .faq-item.open { border-color: var(--c-primary); }
    .guard {
      background: var(--c-paper); border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line);
      padding: 36px 0;
    }
    .guard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .guard-item {
      display: flex; align-items: center; gap: 12px; border: 1px solid var(--c-line);
      padding: 14px 16px; border-radius: 2px; background: #F7F3EC;
    }
    .badge {
      width: 42px; height: 42px; border: 2px solid var(--c-warn); color: var(--c-dark);
      display: grid; place-items: center; font-weight: 800; font-size: 12px; flex-shrink: 0;
      background: rgba(227,181,5,.15);
    }
    .guard-item strong { display: block; font-size: 15px; }
    .guard-item span { font-size: 12px; color: var(--c-muted); }
    .cta {
      background: #1A1614; color: #E8E2D8; position: relative;
      background-image: repeating-linear-gradient(-45deg, rgba(230,92,0,.08) 0 12px, transparent 12px 24px);
    }
    .cta h2 { color: #fff; }
    .cta-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
    .cta-points { margin: 18px 0 22px; }
    .cta-points li {
      padding: 8px 0 8px 18px; position: relative; color: #C9C1B6; font-size: 15px;
    }
    .cta-points li::before {
      content: ""; width: 8px; height: 8px; background: var(--c-primary); position: absolute; left: 0; top: 14px;
    }
    .cta-side { font-size: 14px; color: #A39A90; }
    .cta-side a { color: #fff; font-weight: 700; }
    .form-card {
      background: var(--c-paper); color: var(--c-text); padding: 24px; border-radius: var(--radius);
      border: 1px solid var(--c-line);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea {
      border: 1px solid var(--c-line); border-radius: var(--radius); background: #fff;
      padding: 10px 12px; min-height: 44px; color: var(--c-text);
    }
    .field textarea { min-height: 96px; resize: vertical; }
    .field input.is-err, .field select.is-err, .field textarea.is-err { border-color: var(--c-primary); }
    .form-ok {
      display: none; padding: 18px; background: rgba(26,107,107,.08); border: 1px solid var(--c-accent); color: var(--c-accent); font-weight: 600;
    }
    .form-ok.show { display: block; }
    .site-footer {
      background: var(--c-dark); color: #B7AFA6; font-size: 14px; padding: 56px 0 24px;
      border-top: 3px solid var(--c-primary);
    }
    .foot-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C9C1B6; }
    .site-footer a:hover { color: #fff; }
    .foot-brand strong { color: #fff; font-size: 18px; display: block; margin-bottom: 10px; }
    .foot-map a { display: block; padding: 6px 0; min-height: 36px; }
    .foot-contact li { padding: 5px 0; }
    .foot-bottom {
      border-top: 1px solid #2F2A26; padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
      font-size: 13px; color: #8A8278;
    }
    .rivet {
      position: relative;
    }
    .rivet::before, .rivet::after {
      content: ""; position: absolute; width: 6px; height: 6px; border-radius: 50%;
      background: rgba(227,181,5,.45); box-shadow: 0 0 0 2px rgba(28,25,23,.4);
    }
    .rivet::before { top: 10px; left: 10px; }
    .rivet::after { top: 10px; right: 10px; }
    @media (max-width: 1280px) {
      .nav-links a { padding: 8px 7px; font-size: 13px; }
      .hero-grid { grid-template-columns: 1fr .8fr; }
    }
    @media (max-width: 1024px) {
      :root { --gutter: 24px; }
      .section { padding: 80px 0; }
      .intro-grid, .matrix-grid, .idea-grid, .cta-grid { grid-template-columns: 1fr; }
      .hero-grid { grid-template-columns: 1fr; padding-bottom: 100px; }
      .hero-card { display: none; }
      .adv-grid { grid-template-columns: repeat(2, 1fr); }
      .prod-grid { grid-template-columns: 1fr; }
      .prod-card.large { grid-row: auto; }
      .kpi-grid { grid-template-columns: repeat(3, 1fr); }
      .timeline { grid-template-columns: repeat(3, 1fr); gap: 18px 8px; }
      .timeline::before { display: none; }
      .reviews { grid-template-columns: repeat(2, 1fr); }
      .topics { grid-template-columns: repeat(2, 1fr); }
      .logo-wall { grid-template-columns: repeat(3, 1fr); }
      .guard-grid { grid-template-columns: repeat(2, 1fr); }
      .cases-grid { grid-template-columns: repeat(2, 1fr); }
      .slotbar .container { grid-template-columns: 1fr auto; }
      .slot-model { display: none; }
      .nav-links { display: none; }
      .nav-cta { display: none; }
      .burger { display: flex; }
      .nav-links.is-open {
        display: flex; flex-direction: column; align-items: stretch;
        position: fixed; top: 0; right: 0; bottom: 0; width: min(360px, 88vw);
        background: #EFEBE3; z-index: 100; padding: 72px 20px 24px;
        box-shadow: -12px 0 30px rgba(28,25,23,.2); overflow: auto;
      }
      .nav-links.is-open a { min-height: 48px; border-bottom: 1px solid var(--c-line); }
      .nav-links.is-open .drawer-cta { margin-top: 18px; display: flex; }
      body.menu-open .burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
      body.menu-open .burger span:nth-child(2) { opacity: 0; }
      body.menu-open .burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    }
    @media (max-width: 768px) {
      :root { --gutter: 16px; }
      body { font-size: 16px; }
      .section { padding: 64px 0; }
      .nav-top-links .mail, .nav-top-links .dot, .nav-top-links .time { display: none; }
      .hero-stage { height: 70vh; min-height: 480px; max-height: 640px; }
      .intro-visual img { height: 260px; }
      .intro-grid, .story, .prod-card.small, .news { grid-template-columns: 1fr; }
      .news-body { padding: 14px 16px 16px; }
      .spec-list, .adv-grid, .kpi-grid, .timeline, .reviews, .topics, .logo-wall, .guard-grid, .form-grid, .foot-grid {
        grid-template-columns: 1fr;
      }
      .cases-grid { grid-template-columns: 1fr; }
      .case, .case.large { min-height: 220px; grid-column: auto; }
      .matrix-photo { min-height: 220px; }
      .track { grid-template-columns: 40px 1fr; }
      .track-go { display: none; }
      .prod-card.small img { min-height: 180px; height: 180px; width: 100%; }
      .compare-row { grid-template-columns: 1fr; }
      .slotbar .container { grid-template-columns: 1fr; text-align: left; }
      .hero-controls { bottom: 16px; }
      .countdown { flex-wrap: wrap; }
      .foot-bottom { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .hero-actions .btn { width: 100%; }
      .kpi-item b { font-size: 28px; }
      .hero-copy p { font-size: 15px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
      .case img { transform: none !important; }
    }