/* roulang page: index */
:root {
      --amber: #D8901A;
      --amber-deep: #B47412;
      --amber-soft: #F4E3C2;
      --cyan: #1DB8A8;
      --cyan-dim: rgba(29, 184, 168, .16);
      --aluminum: #8A93A0;
      --bg: #F3F1EC;
      --cabin: #16181C;
      --cabin-2: #1E2228;
      --card: #FFFcf7;
      --text: #1C1E22;
      --muted: #5C6370;
      --invert: #F4F6F8;
      --line: #D9D4C8;
      --line-dark: #2A2E35;
      --danger: #C45A1A;
      --radius: 8px;
      --radius-sm: 6px;
      --radius-btn: 5px;
      --shadow: 0 6px 16px rgba(22, 24, 28, .06);
      --shadow-hover: 0 10px 18px rgba(22, 24, 28, .08);
      --container: 1240px;
      --gutter: 24px;
      --nav-h: 64px;
      --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
      --space-section: 88px;
      --space-section-m: 56px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font);
      color: var(--text);
      background: var(--bg);
      font-size: 17px;
      line-height: 1.75;
      overflow-x: clip;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--cyan); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--amber); }
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
      outline: 2px solid var(--amber);
      outline-offset: 2px;
    }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: .02em; line-height: 1.28; color: var(--text); }
    p { margin: 0 0 1em; }
    p:last-child { margin-bottom: 0; }
    ul, ol { margin: 0; padding: 0; }
    .container { width: min(100% - 32px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 12px; top: 12px; z-index: 200; background: var(--card); padding: 8px 12px; }

    .site-header {
      position: sticky; top: 0; z-index: 90;
      background: var(--card);
      box-shadow: 0 1px 0 rgba(22, 24, 28, .06);
    }
    .topbar {
      background: var(--cabin);
      color: var(--invert);
      font-size: 13px;
      line-height: 1.4;
      overflow: hidden;
      max-height: 44px;
      transition: max-height .25s ease, opacity .25s ease;
    }
    body.is-scrolled .topbar { max-height: 0; opacity: 0; }
    .topbar-inner {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
      min-height: 36px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 12px;
    }
    .topbar a { color: var(--invert); }
    .topbar a:hover { color: var(--cyan); }
    .top-trust { color: var(--aluminum); text-align: center; }
    .top-trust b { color: var(--amber); font-weight: 650; }
    .top-mail { text-align: right; }
    .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

    .nav-bar { background: rgba(255, 252, 247, .96); border-bottom: 1px solid var(--line); }
    .nav-inner {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
      min-height: var(--nav-h);
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .brand {
      display: flex; align-items: center; gap: 10px;
      color: var(--text); flex: 0 0 auto;
    }
    .brand:hover { color: var(--text); }
    .brand-mark {
      width: 36px; height: 36px; flex: 0 0 36px;
      border: 1px solid #C9A15A;
      border-radius: 6px;
      display: grid; place-items: center;
      background: var(--cabin);
      box-shadow: inset 0 0 0 1px rgba(29, 184, 168, .35);
    }
    .brand-mark svg { display: block; }
    .brand-name { display: flex; flex-direction: column; line-height: 1.2; }
    .brand-full { font-size: 15px; font-weight: 700; }
    .brand-sub { font-size: 11px; color: var(--aluminum); letter-spacing: .18em; }

    .nav-links {
      display: flex; align-items: center; justify-content: center;
      gap: 4px; flex: 1; list-style: none;
    }
    .nav-links a {
      position: relative;
      color: var(--text);
      font-size: 15px;
      padding: 10px 12px;
      min-height: 44px;
      display: inline-flex; align-items: center;
    }
    .nav-links a::after {
      content: "";
      position: absolute; left: 12px; right: 12px; bottom: 6px;
      height: 2px; background: var(--cyan);
      transform: scaleX(0); transform-origin: left;
      transition: transform .2s ease;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--text); }
    .nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }

    .nav-cta { margin-left: auto; display: flex; align-items: center; gap: 8px; }
    .nav-toggle, .nav-call {
      display: none;
      width: 44px; height: 44px;
      border: 1px solid var(--line);
      background: var(--card);
      border-radius: var(--radius-btn);
      align-items: center; justify-content: center;
      color: var(--text);
    }
    .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
      display: block; width: 18px; height: 1.5px; background: currentColor; position: relative;
    }
    .nav-toggle span::before, .nav-toggle span::after {
      content: ""; position: absolute; left: 0;
    }
    .nav-toggle span::before { top: -6px; }
    .nav-toggle span::after { top: 6px; }
    #nav-check { position: absolute; opacity: 0; pointer-events: none; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px;
      border-radius: var(--radius-btn);
      border: 1px solid transparent;
      font-size: 15px; font-weight: 650;
      letter-spacing: .04em;
      transition: background .2s ease, border-color .2s ease, transform .2s ease, color .2s ease;
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--amber); color: #1C1E22; border-color: var(--amber); }
    .btn-primary:hover { background: #E09A22; color: #1C1E22; }
    .btn-ghost { background: transparent; color: var(--invert); border-color: rgba(244, 246, 248, .35); }
    .btn-ghost:hover { border-color: var(--cyan); color: #fff; }
    .btn-line { background: transparent; color: var(--text); border-color: var(--aluminum); }
    .btn-line:hover { border-color: var(--cyan); color: var(--text); }
    .btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

    main section[id] { scroll-margin-top: 84px; }
    .section { padding: var(--space-section) 0; }
    .section-alt { background: #EBE8E1; }
    .section-head { max-width: 760px; margin-bottom: 36px; }
    .section-head.wide { max-width: none; display: flex; justify-content: space-between; gap: 24px; align-items: end; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--cyan); font-size: 13px; letter-spacing: .16em;
      margin-bottom: 10px; font-weight: 650;
    }
    .kicker::before { content: ""; width: 18px; height: 1px; background: var(--cyan); }
    h2 { font-size: 32px; margin-bottom: 14px; }
    h3 { font-size: 22px; }
    .lead { color: var(--muted); font-size: 16px; }
    .lead + .lead { margin-top: 8px; }

    .hero {
      position: relative;
      background: var(--cabin);
      color: var(--invert);
    }
    .carousel { position: relative; min-height: 620px; height: min(86vh, 760px); overflow: hidden; }
    .slide {
      position: absolute; inset: 0;
      opacity: 0; visibility: hidden;
      transition: opacity .6s ease;
    }
    .slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .slide-media, .slide-media img {
      width: 100%; height: 100%; object-fit: cover;
    }
    .slide-media::after {
      content: "";
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(22, 24, 28, .88) 0%, rgba(22, 24, 28, .62) 42%, rgba(22, 24, 28, .18) 70%, rgba(22, 24, 28, .08) 100%);
    }
    .slide-copy {
      position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
      padding: 0 0 84px;
      max-width: none;
    }
    .slide-copy-inner { max-width: 640px; }
    .slide-brand {
      color: var(--amber); font-size: 13px; letter-spacing: .2em; margin-bottom: 12px; font-weight: 700;
    }
    .slide h1, .slide .slide-title {
      font-size: 46px; color: var(--invert); margin-bottom: 14px; font-weight: 700;
    }
    .slide .slide-sub { font-size: 18px; color: #D5DBE2; margin-bottom: 16px; }
    .slide .slide-desc { font-size: 16px; color: #C4CCD4; margin-bottom: 24px; max-width: 58ch; }
    .carousel-btn {
      position: absolute; top: 50%; z-index: 3;
      width: 44px; height: 44px; margin-top: -22px;
      border: 1px solid rgba(244, 246, 248, .28);
      background: rgba(22, 24, 28, .45);
      color: #fff; border-radius: 6px;
    }
    .carousel-btn:hover { border-color: var(--cyan); }
    .carousel-prev { left: 16px; }
    .carousel-next { right: 16px; }
    .carousel-dots {
      position: absolute; left: 0; right: 0; bottom: 28px; z-index: 3;
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
      display: flex; gap: 8px;
    }
    .carousel-dots button {
      width: 36px; height: 4px; padding: 0; border: 0; background: rgba(244, 246, 248, .28); border-radius: 1px;
    }
    .carousel-dots button.is-active { background: var(--amber); }

    .pain-list { list-style: none; display: grid; gap: 16px; }
    .pain-item {
      display: grid;
      grid-template-columns: 72px 1fr 160px;
      gap: 20px;
      align-items: center;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px 20px;
      box-shadow: var(--shadow);
    }
    .pain-item:nth-child(even) { grid-template-columns: 160px 72px 1fr; }
    .pain-item:nth-child(even) .pain-num { order: 2; }
    .pain-item:nth-child(even) .pain-copy { order: 3; }
    .pain-item:nth-child(even) .pain-thumb { order: 1; }
    .pain-item:hover { border-color: var(--cyan); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .pain-num {
      font-family: var(--mono); font-size: 28px; color: var(--amber); font-weight: 700; letter-spacing: .04em;
    }
    .pain-copy h3 { font-size: 20px; margin-bottom: 6px; }
    .pain-copy p { color: var(--muted); font-size: 15px; }
    .pain-thumb {
      width: 160px; height: 96px; overflow: hidden; border-radius: 6px; border: 1px solid var(--line);
    }
    .pain-thumb img { width: 100%; height: 100%; object-fit: cover; }

    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: start;
    }
    .intro-photo {
      border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }
    .intro-photo img { width: 100%; height: 420px; object-fit: cover; }
    .spec-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 18px 0 20px; }
    .spec-table th, .spec-table td {
      text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line);
    }
    .spec-table tr:nth-child(even) td { background: #F7F3EA; }
    .spec-table th { color: var(--muted); font-weight: 550; width: 38%; }
    .spec-table td { font-family: var(--mono); }
    .badges { display: flex; flex-wrap: wrap; gap: 8px; }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 32px; padding: 0 10px;
      border: 1px solid var(--cyan); color: var(--cabin);
      border-radius: 4px; font-size: 12px; background: rgba(29, 184, 168, .08);
    }

    .sol-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .sol-card {
      display: grid; grid-template-columns: 180px 1fr; gap: 0;
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      overflow: hidden; color: inherit; min-height: 168px;
      transition: transform .2s ease, border-color .2s ease;
    }
    .sol-card:hover { transform: translateY(-2px); border-color: var(--cyan); color: inherit; }
    .sol-card img { width: 100%; height: 100%; object-fit: cover; min-height: 168px; }
    .sol-body { padding: 18px 20px; }
    .sol-body h3 { font-size: 20px; margin-bottom: 8px; }
    .sol-body p { color: var(--muted); font-size: 15px; margin-bottom: 12px; }
    .text-link { color: var(--cyan); font-size: 14px; font-weight: 650; }

    .timeline { position: relative; display: grid; gap: 0; }
    .timeline::before {
      content: ""; position: absolute; left: 18px; top: 8px; bottom: 8px;
      width: 1px; background: linear-gradient(var(--amber), var(--cyan));
    }
    .tl-item {
      display: grid; grid-template-columns: 88px 1fr; gap: 20px; align-items: start; padding: 0 0 28px 0; position: relative; }
    .tl-index {
      width: 36px; height: 36px; margin-left: 0;
      border: 1px solid var(--amber); color: var(--amber);
      border-radius: 50%; display: grid; place-items: center;
      background: var(--card); font-family: var(--mono); font-size: 13px; font-weight: 700;
      position: relative; z-index: 1;
    }
    .tl-card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      padding: 20px 22px; box-shadow: var(--shadow);
    }
    .tl-card h3 { margin-bottom: 8px; }
    .tl-card p { color: var(--muted); font-size: 15px; margin-bottom: 12px; }
    .tl-meta { display: grid; grid-template-columns: 1fr 1fr 120px; gap: 10px; font-size: 13px; }
    .tl-meta b { display: block; color: var(--aluminum); font-weight: 550; margin-bottom: 4px; letter-spacing: .08em; }
    .tl-meta span { color: var(--text); }

    .adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .adv-card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      padding: 22px 22px 20px; box-shadow: var(--shadow); position: relative;
      transition: transform .2s ease, border-color .2s ease;
    }
    .adv-card::before {
      content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--amber);
    }
    .adv-card:hover { transform: translateY(-2px); border-color: var(--cyan); }
    .adv-icon { width: 24px; height: 24px; margin-bottom: 14px; color: var(--cyan); }
    .adv-icon svg { width: 24px; height: 24px; display: block; }
    .adv-card h3 { font-size: 20px; margin-bottom: 8px; }
    .adv-card p { color: var(--muted); font-size: 15px; }
    .adv-data { margin-top: 12px; font-family: var(--mono); font-size: 22px; color: var(--amber); font-weight: 700; }
    .adv-data small { font-size: 12px; color: var(--aluminum); margin-left: 6px; font-weight: 500; }

    .prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .prod-card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform .2s ease, border-color .2s ease;
    }
    .prod-card:hover { transform: translateY(-2px); border-color: var(--cyan); }
    .prod-cover { aspect-ratio: 16 / 10; overflow: hidden; }
    .prod-cover img { width: 100%; height: 100%; object-fit: cover; }
    .prod-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
    .chips { display: flex; flex-wrap: wrap; gap: 6px; }
    .chip {
      font-size: 12px; min-height: 28px; padding: 0 8px; display: inline-flex; align-items: center;
      border: 1px solid var(--line); border-radius: 4px; color: var(--muted); background: #F7F3EA;
    }
    .prod-list { list-style: none; color: var(--muted); font-size: 14px; }
    .prod-list li { padding: 4px 0 4px 14px; position: relative; }
    .prod-list li::before { content: ""; width: 6px; height: 1px; background: var(--cyan); position: absolute; left: 0; top: 13px; }
    .prod-price { font-family: var(--mono); font-size: 14px; color: var(--amber); font-weight: 700; }

    .dark-block {
      background: var(--cabin); color: var(--invert); padding: var(--space-section) 0; position: relative; overflow: hidden;
    }
    .dark-block::before {
      content: ""; position: absolute; inset: 0; pointer-events: none;
      background-image:
        linear-gradient(rgba(29,184,168,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(29,184,168,.05) 1px, transparent 1px),
        repeating-linear-gradient(180deg, transparent 0 46px, rgba(244,246,248,.03) 47px, transparent 48px);
      background-size: 48px 48px, 48px 48px, 100% 48px; opacity: .55;
    }
    .dark-block .container { position: relative; z-index: 1; }
    .dark-block h2, .dark-block h3 { color: var(--invert); }
    .dark-block .lead { color: #C4CCD4; }
    .case-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; }
    .case-main { display: grid; gap: 18px; }
    .case-card { display: grid; grid-template-columns: 180px 1fr; gap: 16px; background: var(--cabin-2); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; }
    .case-card img { width: 100%; height: 100%; min-height: 150px; object-fit: cover; }
    .case-copy { padding: 16px 16px 16px 0; }
    .case-copy p { color: #C4CCD4; font-size: 15px; }
    .quote { font-size: 20px; color: var(--amber); margin-bottom: 10px; font-weight: 650; }
    .idea-list { list-style: none; background: var(--cabin-2); border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 22px; }
    .idea-list li { padding: 10px 0 10px 18px; border-bottom: 1px solid var(--line-dark); color: #D5DBE2; position: relative; font-size: 15px; }
    .idea-list li:last-child { border-bottom: 0; }
    .idea-list li::before { content: ""; width: 8px; height: 1px; background: var(--cyan); position: absolute; left: 0; top: 20px; }

    .stats {
      background: #EBE8E1; padding: 36px 0;
    }
    .stats-row {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; text-align: left;
    }
    .stat-item { padding: 8px 8px 8px 16px; border-left: 1px solid var(--amber); }
    .stat-num { font-family: var(--mono); font-size: 34px; color: var(--text); font-weight: 700; line-height: 1.1; }
    .stat-num em { font-style: normal; color: var(--amber); font-size: 16px; margin-left: 4px; }
    .stat-label { color: var(--muted); font-size: 14px; margin-top: 6px; }

    .story { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: center; margin-bottom: 36px; }
    .story:nth-child(even) { grid-template-columns: 1.1fr .9fr; }
    .story:nth-child(even) .story-media { order: 2; }
    .story-media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
    .story-media img { width: 100%; height: 320px; object-fit: cover; }
    .story-copy h3 { margin-bottom: 10px; }
    .story-copy p { color: var(--muted); }
    .story-tag { display: inline-flex; min-height: 28px; padding: 0 8px; border: 1px solid var(--line); border-radius: 4px; font-size: 12px; color: var(--aluminum); margin-bottom: 10px; align-items: center; }

    .filter-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
    .filter-tags a, .filter-tags button {
      min-height: 44px; padding: 0 14px; border: 1px solid var(--line); background: var(--card);
      border-radius: 5px; color: var(--text); font-size: 14px;
    }
    .filter-tags a:hover, .filter-tags a.is-on, .filter-tags button:hover, .filter-tags button.is-on {
      border-color: var(--cyan); color: var(--text);
    }
    .scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .scene-card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
      min-height: 180px; display: flex; flex-direction: column; gap: 8px;
      transition: transform .2s ease, border-color .2s ease;
    }
    .scene-card:hover { transform: translateY(-2px); border-color: var(--cyan); }
    .scene-card h3 { font-size: 18px; }
    .scene-card p { color: var(--muted); font-size: 14px; flex: 1; }

    .track-wrap { overflow: hidden; }
    .track {
      display: grid; grid-auto-flow: column; grid-auto-columns: minmax(320px, 1fr);
      gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px;
    }
    .review {
      scroll-snap-align: start;
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      padding: 18px; min-height: 180px; display: grid; grid-template-columns: 86px 1fr; gap: 14px;
    }
    .review-role { font-size: 13px; color: var(--aluminum); }
    .stars { color: var(--amber); letter-spacing: 2px; font-size: 12px; margin: 6px 0; }
    .review p { font-size: 15px; color: var(--muted); }
    .review h3 { font-size: 16px; }

    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .news-card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
      color: inherit; display: flex; flex-direction: column;
      transition: transform .2s ease, border-color .2s ease;
    }
    .news-card:hover { transform: translateY(-2px); border-color: var(--cyan); color: inherit; }
    .news-card img { width: 100%; height: 150px; object-fit: cover; }
    .news-body { padding: 14px 16px 16px; }
    .news-date { font-family: var(--mono); font-size: 12px; color: var(--aluminum); margin-bottom: 6px; }
    .news-body h3 { font-size: 17px; margin-bottom: 8px; }
    .news-body p { color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    .meter-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
    .meter {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
    }
    .meter-num { font-family: var(--mono); font-size: 28px; font-weight: 700; color: var(--text); }
    .meter-num span { color: var(--amber); }
    .meter p { color: var(--muted); font-size: 13px; margin-top: 6px; }
    .bar { height: 4px; background: #E4DFD4; border-radius: 2px; margin-top: 12px; overflow: hidden; }
    .bar i { display: block; height: 100%; background: var(--cyan); width: var(--w); }

    .faq-list { display: grid; gap: 10px; }
    details.faq {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    }
    details.faq[open] { background: #F7F3EA; }
    details.faq summary {
      list-style: none; cursor: pointer; min-height: 56px; padding: 14px 52px 14px 18px;
      position: relative; font-weight: 650; font-size: 16px;
    }
    details.faq summary::-webkit-details-marker { display: none; }
    details.faq summary::after {
      content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%);
      width: 28px; height: 28px; border: 1px solid var(--aluminum); border-radius: 4px;
      display: grid; place-items: center; color: var(--cyan); font-size: 18px; line-height: 1;
    }
    details.faq[open] summary::after { content: "−"; border-color: var(--amber); color: var(--amber); }
    .faq-a { padding: 0 18px 16px; color: var(--muted); font-size: 15px; }
    .faq-a ul { padding-left: 18px; margin-top: 8px; }

    .cta-block { background: var(--cabin); color: var(--invert); padding: var(--space-section) 0; position: relative; }
    .cta-block::before {
      content: ""; position: absolute; inset: 0; pointer-events: none;
      background-image: linear-gradient(rgba(29,184,168,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(29,184,168,.05) 1px, transparent 1px);
      background-size: 42px 42px; opacity: .5;
    }
    .cta-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
    .cta-block h2 { color: var(--invert); }
    .cta-block .lead { color: #C4CCD4; }
    form.consult { display: grid; gap: 12px; background: var(--cabin-2); border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 22px; }
    .field { display: grid; gap: 6px; }
    .field span { font-size: 13px; color: #C4CCD4; }
    .field input, .field select, .field textarea {
      min-height: 48px; border: 1px solid var(--line-dark); background: #121417; color: var(--invert);
      border-radius: 5px; padding: 10px 12px; font-size: 15px;
    }
    .field textarea { min-height: 108px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--amber); }
    .field.is-error input, .field.is-error textarea, .field.is-error select { border-color: var(--amber); }
    .form-note { font-size: 13px; color: var(--aluminum); }
    .form-ok { display: none; color: var(--cyan); font-size: 14px; }
    form.consult.is-sent .form-ok { display: block; }

    .site-footer { background: #111317; color: #C4CCD4; padding: 56px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr 1fr; gap: 28px; margin-bottom: 28px; }
    .foot-brand { color: var(--invert); font-size: 18px; font-weight: 700; margin-bottom: 10px; }
    .site-footer h3 { color: var(--invert); font-size: 15px; margin-bottom: 12px; }
    .site-footer a { color: #C4CCD4; }
    .site-footer a:hover { color: var(--cyan); }
    .foot-links, .foot-scope { list-style: none; display: grid; gap: 8px; }
    .foot-links a, .foot-scope li { min-height: 32px; }
    .icp { border-top: 1px solid #262A31; padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--aluminum); }
    .back-top { color: var(--amber); }

    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px);
      background: var(--card); z-index: 100; transform: translateX(100%);
      transition: transform .25s ease; box-shadow: -12px 0 24px rgba(0,0,0,.12);
      padding: 24px 18px; display: flex; flex-direction: column; gap: 8px;
    }
    body.nav-open .drawer { transform: translateX(0); }
    .drawer a { min-height: 48px; display: flex; align-items: center; color: var(--text); border-bottom: 1px solid var(--line); }
    .overlay { display: none; position: fixed; inset: 0; background: rgba(22,24,28,.45); z-index: 95; }
    body.nav-open .overlay { display: block; }

    @media (max-width: 1280px) {
      .slide h1, .slide .slide-title { font-size: 40px; }
    }
    @media (max-width: 1024px) {
      h2 { font-size: 28px; }
      .slide h1, .slide .slide-title { font-size: 34px; }
      .intro-grid, .case-grid, .cta-grid { grid-template-columns: 1fr; }
      .prod-grid, .news-grid, .scene-grid, .meter-grid { grid-template-columns: 1fr 1fr; }
      .adv-grid { grid-template-columns: 1fr 1fr; }
      .stats-row { grid-template-columns: 1fr 1fr; gap: 18px; }
      .story, .story:nth-child(even) { grid-template-columns: 1fr; }
      .story:nth-child(even) .story-media { order: 0; }
      .nav-links { display: none; }
      .nav-toggle, .nav-call { display: inline-flex; }
      .topbar-inner { grid-template-columns: 1fr auto; }
      .top-trust { display: none; }
      .sol-grid { grid-template-columns: 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      :root { --space-section: 56px; }
      .carousel { min-height: 560px; height: auto; }
      .slide { position: relative; opacity: 1; visibility: visible; min-height: 560px; display: none; }
      .slide.is-active { display: block; }
      .slide-copy { padding: 0 0 72px; }
      .slide h1, .slide .slide-title { font-size: 30px; }
      .pain-item, .pain-item:nth-child(even) { grid-template-columns: 1fr; }
      .pain-item:nth-child(even) .pain-num, .pain-item:nth-child(even) .pain-copy, .pain-item:nth-child(even) .pain-thumb { order: 0; }
      .pain-thumb { width: 100%; height: 140px; }
      .sol-card { grid-template-columns: 1fr; }
      .sol-card img { min-height: 180px; height: 180px; }
      .prod-grid, .news-grid, .scene-grid, .meter-grid, .adv-grid { grid-template-columns: 1fr; }
      .tl-item { grid-template-columns: 48px 1fr; }
      .tl-meta { grid-template-columns: 1fr; }
      .case-card { grid-template-columns: 1fr; }
      .case-copy { padding: 0 16px 16px; }
      .section-head.wide { flex-direction: column; align-items: start; }
      .brand-full { font-size: 14px; }
      .intro-photo img, .story-media img { height: 240px; }
    }
    @media (max-width: 520px) {
      .slide h1, .slide .slide-title { font-size: 28px; }
      .btn-row .btn { width: 100%; }
      .stats-row { grid-template-columns: 1fr 1fr; }
      .foot-grid { grid-template-columns: 1fr; }
      .icp { flex-direction: column; }
      .carousel-prev { left: 8px; }
      .carousel-next { right: 8px; }
      .review { grid-template-columns: 1fr; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }