/* roulang page: index */
:root {
      --ink: #2B3036;
      --ink-2: #23282d;
      --amber: #D89012;
      --amber-deep: #B8770E;
      --amber-dark: #8E5C0C;
      --teal: #1F7A6C;
      --teal-2: #176257;
      --paper: #F3F0E8;
      --metal: #E6E8EA;
      --dark: #1A1E22;
      --text: #1C2126;
      --muted: #5C6570;
      --invert: #EDEAE2;
      --line: rgba(43, 48, 54, 0.14);
      --line-dark: rgba(237, 234, 226, 0.12);
      --danger: #B42318;
      --ok: #1F7A6C;
      --radius-card: 8px;
      --radius-btn: 3px;
      --radius-input: 4px;
      --shadow: 0 4px 12px rgba(28, 33, 38, 0.08);
      --shadow-hover: 0 8px 18px rgba(28, 33, 38, 0.14);
      --container: 1240px;
      --gutter: 24px;
      --top-h: 38px;
      --nav-h: 66px;
      --dock-h: 64px;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "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);
      color: var(--text);
      background: var(--paper);
      line-height: 1.7;
      font-size: 16px;
      overflow-x: hidden;
      padding-bottom: calc(var(--dock-h) + 12px);
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--teal); text-decoration: none; transition: color var(--ease); }
    a:hover { color: var(--teal-2); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { font-weight: 700; line-height: 1.28; color: var(--text); margin: 0 0 12px; }
    p { margin: 0 0 14px; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; letter-spacing: 0.02em; }
    .topbar {
      height: var(--top-h);
      background: var(--metal);
      color: var(--muted);
      font-size: 13px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid var(--line);
    }
    .topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }
    .topbar a { color: var(--text); }
    .topbar a:hover { color: var(--teal); }
    .top-left, .top-right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
    .topbar svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 4px; }
    .chip {
      display: inline-flex; align-items: center;
      height: 22px; padding: 0 8px;
      border: 1px solid rgba(31, 122, 108, 0.35);
      color: var(--teal-2); font-size: 12px; border-radius: 2px;
      background: rgba(31, 122, 108, 0.06);
    }
    .site-header {
      background: var(--ink);
      position: sticky; top: 0; z-index: 40;
      border-bottom: 1px solid rgba(216, 144, 18, 0.28);
    }
    .nav-main {
      min-height: var(--nav-h);
      display: flex; align-items: center;
    }
    .nav-main .container {
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
      width: min(100% - 32px, var(--container));
    }
    .brand {
      display: flex; align-items: center; gap: 10px; color: var(--invert); flex-shrink: 0;
    }
    .brand:hover { color: var(--invert); }
    .mark {
      width: 36px; height: 36px; position: relative; flex-shrink: 0;
    }
    .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
    .brand-text strong { font-size: 18px; letter-spacing: 0.08em; font-weight: 700; }
    .brand-text span { font-size: 12px; color: var(--amber); letter-spacing: 0.16em; margin-top: 2px; }
    .nav-links {
      display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center;
    }
    .nav-links a {
      color: #c9c4b8; font-size: 14px; padding: 10px 10px; min-height: 44px;
      display: inline-flex; align-items: center; position: relative; white-space: nowrap;
    }
    .nav-links a:hover { color: #fff; }
    .nav-links a.is-active { color: #fff; }
    .nav-links a.is-active::after,
    .nav-links a:hover::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 6px;
      height: 2px; background: var(--amber);
    }
    .nav-cta { flex-shrink: 0; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px;
      border-radius: var(--radius-btn);
      font-weight: 600; letter-spacing: 0.04em;
      transition: background var(--ease), color var(--ease), transform var(--ease), box-shadow var(--ease), border-color var(--ease);
      border: 1px solid transparent;
      text-align: center;
    }
    .btn:hover { transform: translateY(-1px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      background: var(--amber); color: var(--ink); border-color: var(--amber);
    }
    .btn-primary:hover { background: var(--amber-deep); color: var(--ink); box-shadow: var(--shadow); }
    .btn-ghost {
      background: transparent; color: var(--invert); border-color: rgba(237, 234, 226, 0.45);
    }
    .btn-ghost:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
    .btn-line {
      background: transparent; color: var(--ink); border-color: var(--ink);
    }
    .btn-line:hover { background: var(--ink); color: var(--invert); }
    .btn-block { width: 100%; }
    .menu-btn {
      display: none; width: 44px; height: 44px; color: var(--invert);
      align-items: center; justify-content: center;
    }
    .hero {
      position: relative; background: var(--dark); color: var(--invert);
      min-height: min(86vh, 860px);
    }
    .hero-viewport { position: relative; overflow: hidden; min-height: inherit; }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity 520ms ease;
    }
    .hero-slide.is-on { opacity: 1; visibility: visible; position: relative; }
    .hero-slide img.bg {
      position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
      filter: saturate(0.92) contrast(1.05);
    }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(26, 30, 34, 0.82) 0%, rgba(26, 30, 34, 0.55) 46%, rgba(26, 30, 34, 0.28) 100%),
        repeating-linear-gradient(-45deg, transparent 0 10px, rgba(216, 144, 18, 0.03) 10px 12px);
    }
    .hero-copy {
      position: relative; z-index: 2;
      padding: 88px 0 108px;
      max-width: 720px;
    }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--amber); font-size: 13px; letter-spacing: 0.18em;
      margin-bottom: 14px; font-weight: 500;
    }
    .hero h1, .hero h2.slide-title {
      font-size: clamp(28px, 4vw, 46px);
      color: #fff; margin-bottom: 16px; letter-spacing: 0.04em;
    }
    .hero .lead {
      font-size: 16px; color: #d8d3c8; max-width: 640px; margin-bottom: 28px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
    .hero-metrics {
      display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1px; background: rgba(237, 234, 226, 0.16);
      max-width: 520px; border: 1px solid rgba(237, 234, 226, 0.16);
    }
    .hero-metrics div {
      background: rgba(26, 30, 34, 0.55); padding: 12px 14px;
    }
    .hero-metrics strong {
      display: block; font-size: 18px; color: var(--amber); font-variant-numeric: tabular-nums;
    }
    .hero-metrics span { font-size: 12px; color: #b9b3a7; }
    .hero-ctrl {
      position: absolute; z-index: 3; left: 0; right: 0; bottom: 22px;
      display: flex; align-items: center; justify-content: space-between;
      width: min(100% - 40px, var(--container)); margin: 0 auto;
    }
    .dots { display: flex; gap: 8px; align-items: center; }
    .dots button {
      width: 10px; height: 10px; border-radius: 1px; background: rgba(237, 234, 226, 0.35);
      min-width: 44px; min-height: 44px; position: relative;
    }
    .dots button::before {
      content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 10px;
      transform: translate(-50%, -50%); background: rgba(237, 234, 226, 0.45);
    }
    .dots button.is-on::before { background: var(--amber); width: 22px; }
    .pause {
      width: 44px; height: 44px; border: 1px solid rgba(237, 234, 226, 0.35);
      color: var(--invert); display: grid; place-items: center; border-radius: var(--radius-btn);
    }
    .pause:hover { border-color: var(--amber); color: var(--amber); }
    .scan {
      position: absolute; right: 8%; top: 18%; width: 280px; height: 280px; pointer-events: none; opacity: 0.18; z-index: 2;
    }
    .scan i {
      position: absolute; inset: 0; border: 1px solid #9fe; border-radius: 50%;
      animation: pulse 6s linear infinite;
    }
    .scan i:nth-child(2) { inset: 18%; animation-delay: -2s; }
    .scan i:nth-child(3) { inset: 36%; animation-delay: -4s; }
    @keyframes pulse {
      from { transform: scale(0.86); opacity: 0.7; }
      to { transform: scale(1.12); opacity: 0; }
    }
    main { background: var(--paper); }
    section { position: relative; }
    .sec {
      padding: 88px 0;
    }
    .sec-metal { background: var(--metal); }
    .sec-paper { background: var(--paper); }
    .sec-dark { background: var(--dark); color: var(--invert); }
    .sec-dark h2, .sec-dark h3 { color: #fff; }
    .kicker {
      color: var(--teal); font-size: 13px; letter-spacing: 0.16em; font-weight: 600; margin-bottom: 8px;
    }
    .sec-dark .kicker { color: var(--amber); }
    .sec h2 {
      font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px;
    }
    .sec-desc {
      max-width: 760px; color: var(--muted); margin-bottom: 32px; font-size: 16px;
    }
    .sec-dark .sec-desc { color: #c3beb4; }
    .kpi-row {
      display: grid; grid-template-columns: repeat(3, 1fr);
      border-top: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);
      background: var(--ink);
    }
    .kpi {
      padding: 36px 32px; color: var(--invert);
      border-right: 1px solid rgba(237, 234, 226, 0.1);
      position: relative;
    }
    .kpi:last-child { border-right: 0; }
    .kpi::after {
      content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--amber);
      opacity: 0; transition: opacity var(--ease);
    }
    .kpi:hover::after { opacity: 1; }
    .kpi .tag { color: var(--amber); font-size: 14px; letter-spacing: 0.12em; margin-bottom: 10px; }
    .kpi .big {
      font-size: clamp(36px, 5vw, 56px); font-weight: 700; line-height: 1; color: #fff;
      font-variant-numeric: tabular-nums; margin-bottom: 12px;
    }
    .kpi .big em { font-style: normal; font-size: 0.42em; margin-left: 6px; color: var(--amber); font-weight: 600; }
    .kpi p { color: #c9c4b8; margin: 0; font-size: 15px; }
    .split {
      display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center;
    }
    .media {
      position: relative; border-radius: var(--radius-card); overflow: hidden;
      box-shadow: var(--shadow); background: var(--ink);
    }
    .media img { width: 100%; height: 460px; object-fit: cover; }
    .media .cap {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 10px 14px;
      background: rgba(26, 30, 34, 0.72); color: var(--invert); font-size: 13px;
    }
    .hatch-corner::before {
      content: ""; position: absolute; right: 0; top: 0; width: 72px; height: 72px;
      background: repeating-linear-gradient(-45deg, rgba(216, 144, 18, 0.45) 0 2px, transparent 2px 7px);
      pointer-events: none; z-index: 2;
    }
    .badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
    .badge {
      display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px;
      border: 1px solid var(--line); border-radius: 2px; background: #fff;
      font-size: 13px; color: var(--text);
    }
    .badge b { color: var(--teal); margin-right: 6px; font-weight: 600; }
    .check-list { display: grid; gap: 10px; margin: 0 0 22px; }
    .check-list li {
      padding-left: 22px; position: relative; color: var(--text); font-size: 15px;
    }
    .check-list li::before {
      content: ""; position: absolute; left: 0; top: 9px; width: 10px; height: 10px;
      border: 2px solid var(--teal); transform: rotate(45deg); border-left: 0; border-top: 0;
    }
    .tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
    .tab-btn {
      min-height: 44px; padding: 0 16px; border: 1px solid var(--ink); color: var(--ink);
      border-radius: var(--radius-btn); background: transparent; font-weight: 600;
    }
    .tab-btn:hover, .tab-btn.is-on {
      background: var(--ink); color: var(--invert);
    }
    .scene-stage {
      display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 24px; align-items: stretch;
    }
    .scene-stage img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; border-radius: var(--radius-card); }
    .scene-panel {
      background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-card);
      padding: 28px; box-shadow: var(--shadow);
    }
    .scene-panel h3 { font-size: 22px; margin-bottom: 12px; }
    .scene-panel li {
      padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 15px;
    }
    .scene-panel li:last-child { border-bottom: 0; }
    .tab-panel { display: none; }
    .tab-panel.is-on { display: block; }
    .bento {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
    }
    .cap-card {
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card);
      padding: 22px; box-shadow: var(--shadow); min-height: 180px;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .cap-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .cap-card.wide {
      grid-column: span 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 16px; padding: 0; overflow: hidden;
    }
    .cap-card.wide img { height: 100%; min-height: 220px; object-fit: cover; }
    .cap-card.wide .pad { padding: 24px 22px 24px 8px; }
    .cap-card h3 { font-size: 18px; margin-bottom: 8px; }
    .cap-card p { color: var(--muted); font-size: 14px; margin: 0; }
    .idx {
      display: inline-block; color: var(--amber-dark); font-variant-numeric: tabular-nums;
      font-size: 12px; letter-spacing: 0.12em; margin-bottom: 8px; font-weight: 700;
    }
    .model-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
    }
    .model-card {
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card);
      overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .model-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .model-card img { width: 100%; height: 220px; object-fit: cover; }
    .model-card .body { padding: 18px 18px 8px; flex: 1; }
    .model-card h3 { font-size: 18px; }
    .model-card p { color: var(--muted); font-size: 14px; }
    .spec {
      display: grid; grid-template-columns: 1fr 1fr 1fr;
      border-top: 1px solid var(--line); background: var(--paper);
    }
    .spec div { padding: 10px 8px; text-align: center; border-right: 1px solid var(--line); }
    .spec div:last-child { border-right: 0; }
    .spec b { display: block; font-size: 13px; color: var(--text); font-variant-numeric: tabular-nums; }
    .spec span { font-size: 12px; color: var(--muted); }
    .model-card .foot { padding: 14px 18px 18px; }
    .case-grid {
      display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center;
    }
    .case-grid img { width: 100%; height: 420px; object-fit: cover; border-radius: var(--radius-card); }
    .timeline { display: grid; gap: 0; }
    .node {
      display: grid; grid-template-columns: 92px 18px 1fr; gap: 14px; padding: 16px 0;
    }
    .node time {
      font-variant-numeric: tabular-nums; color: var(--amber); font-weight: 700; font-size: 15px;
    }
    .node .dot {
      width: 10px; height: 10px; background: var(--amber); border-radius: 1px; margin-top: 8px;
      box-shadow: 0 0 0 6px rgba(216, 144, 18, 0.15);
    }
    .node p { margin: 0; color: #d4cfc4; }
    .compare-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
    table.compare {
      width: 100%; min-width: 640px; border-collapse: collapse; font-size: 15px;
    }
    .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: var(--invert); font-weight: 600;
    }
    .compare thead th:nth-child(3) { background: var(--amber); color: var(--ink); }
    .compare tbody th { width: 18%; color: var(--text); font-weight: 600; background: var(--paper); }
    .compare td:nth-child(3) { color: var(--teal-2); font-weight: 500; }
    .story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .story {
      display: grid; grid-template-columns: 168px 1fr; min-height: 220px;
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden;
      box-shadow: var(--shadow);
    }
    .story img { width: 100%; height: 100%; object-fit: cover; }
    .story .txt { padding: 22px; }
    .story h3 { font-size: 18px; }
    .story p { color: var(--muted); font-size: 14px; }
    .result {
      margin-top: 10px; color: var(--ink); font-weight: 700; font-variant-numeric: tabular-nums;
    }
    .stat-bar {
      display: grid; grid-template-columns: repeat(4, 1fr);
      background:
        repeating-linear-gradient(-45deg, rgba(216, 144, 18, 0.08) 0 8px, transparent 8px 16px),
        var(--dark);
      border-top: 3px solid var(--amber); border-bottom: 1px solid var(--amber);
    }
    .stat {
      padding: 48px 20px; text-align: center; color: var(--invert);
      border-right: 1px solid var(--line-dark);
    }
    .stat:last-child { border-right: 0; }
    .stat b {
      display: block; font-size: clamp(28px, 4vw, 42px); color: var(--amber);
      font-variant-numeric: tabular-nums; line-height: 1.1; margin-bottom: 8px;
    }
    .stat span { color: #c9c4b8; font-size: 14px; }
    .quotes {
      display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; align-items: start;
    }
    .quote {
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card);
      padding: 24px; box-shadow: var(--shadow); position: relative;
    }
    .quote:nth-child(2) { margin-top: 28px; }
    .quote:nth-child(3) { margin-top: 12px; }
    .quote p { color: var(--text); font-size: 15px; }
    .quote footer { color: var(--muted); font-size: 13px; margin-top: 16px; }
    .quote footer strong { color: var(--ink); display: block; font-size: 14px; }
    .steps {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative;
    }
    .step {
      padding: 8px 18px 8px 0; position: relative;
    }
    .step::after {
      content: ""; position: absolute; left: 18px; right: 0; top: 18px; height: 1px; background: var(--amber);
    }
    .step:last-child::after { display: none; }
    .n {
      width: 36px; height: 36px; background: var(--ink); color: var(--amber); display: grid; place-items: center;
      font-weight: 700; font-variant-numeric: tabular-nums; position: relative; z-index: 1; margin-bottom: 14px;
      border-radius: 2px;
    }
    .step h3 { font-size: 17px; }
    .step p { color: var(--muted); font-size: 14px; }
    .sensors { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
    .sensors span {
      background: #fff; border: 1px solid var(--line); padding: 8px 12px; font-size: 13px; border-radius: 2px;
    }
    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .news {
      background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden;
      box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .news:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .news img { height: 150px; width: 100%; object-fit: cover; }
    .news .body { padding: 16px; }
    .news time { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
    .news h3 { font-size: 16px; margin: 6px 0 8px; }
    .news p { color: var(--muted); font-size: 13px; margin: 0; }
    .more-row { margin-top: 24px; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); background: #fff; border-radius: var(--radius-card); overflow: hidden; }
    .faq-item button.q {
      width: 100%; text-align: left; min-height: 56px; padding: 14px 48px 14px 18px;
      font-weight: 600; color: var(--text); position: relative;
    }
    .faq-item button.q::after {
      content: ""; position: absolute; right: 20px; top: 50%; width: 10px; height: 10px;
      border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink);
      transform: translateY(-70%) rotate(45deg); transition: transform var(--ease);
    }
    .faq-item.is-open button.q::after { transform: translateY(-20%) rotate(-135deg); }
    .faq-item .a {
      display: none; padding: 0 18px 18px; color: var(--muted); font-size: 15px;
    }
    .faq-item.is-open .a { display: block; }
    .guarantee {
      display: grid; grid-template-columns: repeat(4, 1fr);
      border: 1px solid rgba(216, 144, 18, 0.45); background: #fff;
    }
    .g-item { padding: 28px 22px; border-right: 1px solid rgba(216, 144, 18, 0.45); }
    .g-item:last-child { border-right: 0; }
    .g-item h3 { font-size: 18px; margin-bottom: 8px; }
    .g-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .inquiry-grid {
      display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: start;
    }
    .form {
      background: #121518; border: 1px solid var(--line-dark); padding: 28px;
      border-radius: var(--radius-card);
    }
    .field { margin-bottom: 14px; }
    .field label { display: block; color: #d8d3c8; font-size: 14px; margin-bottom: 6px; }
    .req { color: var(--amber); margin-left: 4px; }
    .field input, .field select, .field textarea {
      width: 100%; background: #1c2126; color: #fff; border: 1px solid rgba(237, 234, 226, 0.16);
      border-radius: var(--radius-input); min-height: 44px; padding: 10px 12px;
    }
    .field textarea { min-height: 96px; resize: vertical; }
    .field.is-error input, .field.is-error select, .field.is-error textarea { border-color: var(--danger); }
    .err { display: none; color: #ffb4a8; font-size: 12px; margin-top: 4px; }
    .field.is-error .err { display: block; }
    .form-ok {
      display: none; background: rgba(31, 122, 108, 0.18); color: #b7efe4; padding: 12px 14px;
      border: 1px solid var(--teal); margin-bottom: 14px; font-size: 14px;
    }
    .form-ok.show { display: block; }
    .side-note { color: #c3beb4; font-size: 14px; margin-top: 18px; }
    .side-note a { color: var(--amber); }
    .footer {
      background: #121518; color: #b9b3a7; padding: 56px 0 28px; border-top: 1px solid rgba(216, 144, 18, 0.25);
    }
    .ft-grid {
      display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 36px;
    }
    .footer h3 { color: #fff; font-size: 16px; margin-bottom: 14px; }
    .footer a { color: #c9c4b8; display: inline-block; min-height: 32px; }
    .footer a:hover { color: var(--amber); }
    .ft-brand strong { color: #fff; font-size: 18px; display: block; letter-spacing: 0.08em; }
    .ft-brand em { font-style: normal; color: var(--amber); font-size: 13px; letter-spacing: 0.16em; }
    .copy {
      border-top: 1px solid rgba(237, 234, 226, 0.1); padding-top: 16px; font-size: 13px;
      display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between;
    }
    .dock {
      position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
      background: var(--ink); color: var(--invert);
      min-height: var(--dock-h); display: flex; align-items: center;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
      transform: translateY(0); transition: transform 220ms ease, opacity 220ms ease;
    }
    .dock.is-hide { transform: translateY(110%); opacity: 0; pointer-events: none; }
    .dock .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .dock p { margin: 0; font-size: 15px; }
    .dock-actions { display: flex; gap: 10px; align-items: center; }
    .dock .phone { color: var(--amber); font-weight: 700; font-variant-numeric: tabular-nums; }
    .drawer {
      position: fixed; inset: 0; background: rgba(18, 21, 24, 0.55); z-index: 60;
      opacity: 0; visibility: hidden; transition: opacity var(--ease);
    }
    .drawer.is-open { opacity: 1; visibility: visible; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; bottom: 0; width: min(86vw, 360px);
      background: var(--ink); color: var(--invert); padding: 20px;
      transform: translateX(20px); transition: transform var(--ease);
      display: flex; flex-direction: column; gap: 8px;
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer a {
      color: var(--invert); min-height: 44px; display: flex; align-items: center;
      border-bottom: 1px solid var(--line-dark); padding: 0 4px;
    }
    .drawer-close {
      width: 44px; height: 44px; color: var(--invert); align-self: flex-end;
    }
    .grid-deco {
      pointer-events: none; position: absolute; inset: 0; opacity: 0.22;
      background-image:
        linear-gradient(rgba(43, 48, 54, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(43, 48, 54, 0.06) 1px, transparent 1px);
      background-size: 48px 48px;
    }
    @media (max-width: 1280px) {
      .hero-copy { padding: 72px 0 100px; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .menu-btn { display: inline-flex; }
      .split, .scene-stage, .case-grid, .inquiry-grid { grid-template-columns: 1fr; }
      .cap-card.wide { grid-column: span 3; }
      .news-grid { grid-template-columns: 1fr 1fr; }
      .quotes { grid-template-columns: 1fr; }
      .quote:nth-child(2), .quote:nth-child(3) { margin-top: 0; }
      .steps { grid-template-columns: 1fr 1fr; gap: 18px; }
      .step::after { display: none; }
      .ft-grid { grid-template-columns: 1fr 1fr; }
      .media img, .case-grid img { height: 360px; }
      .scan { display: none; }
    }
    @media (max-width: 768px) {
      .sec { padding: 48px 0; }
      .top-left span.hide-sm, .top-right .chip { display: none; }
      .kpi-row, .stat-bar, .guarantee, .bento, .model-grid, .story-grid { grid-template-columns: 1fr; }
      .kpi { border-right: 0; border-bottom: 1px solid rgba(237, 234, 226, 0.1); }
      .stat { border-right: 0; border-bottom: 1px solid var(--line-dark); padding: 28px 16px; }
      .g-item { border-right: 0; border-bottom: 1px solid rgba(216, 144, 18, 0.45); }
      .cap-card.wide { grid-column: auto; grid-template-columns: 1fr; }
      .cap-card.wide .pad { padding: 18px; }
      .story { grid-template-columns: 1fr; }
      .story img { height: 180px; }
      .hero { min-height: 0; }
      .hero-copy { padding: 48px 0 92px; }
      .hero-metrics { grid-template-columns: 1fr; max-width: none; }
      .hero-actions .btn { flex: 1; }
      .dock .desk { display: none; }
      .dock .container { justify-content: stretch; }
      .dock-actions { width: 100%; }
      .dock-actions .btn, .dock-actions a.btn { flex: 1; }
      .news-grid { grid-template-columns: 1fr; }
      .steps { grid-template-columns: 1fr; }
      .container { width: min(100% - 28px, var(--container)); }
    }
    @media (max-width: 520px) {
      .brand-text strong { font-size: 16px; }
      .hero h1, .hero h2.slide-title { font-size: 26px; }
      .sec h2 { font-size: 22px; }
      .btn { padding: 0 12px; }
      .ft-grid { grid-template-columns: 1fr; }
    }