/* roulang page: index */
:root {
      --bg-0: #050910;
      --bg-1: #0a1420;
      --bg-2: rgba(10, 28, 44, 0.62);
      --bg-deep: #03060c;
      --primary: #1b8aa8;
      --primary-2: #147a96;
      --accent: #3ee0c8;
      --warn: #e0a24a;
      --ok: #5ee0a0;
      --text: #e7eef6;
      --text-dim: #8aa0b5;
      --line: rgba(94, 168, 186, 0.24);
      --glow: 0 0 22px rgba(62, 224, 200, 0.35);
      --radius-card: 14px;
      --radius-btn: 9px;
      --shadow-card: 0 10px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(180, 230, 240, 0.08);
      --nav-offset: 108px;
      --container: 1240px;
      --ease: cubic-bezier(0.22, 0.74, 0.18, 1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.78;
      color: var(--text);
      background: var(--bg-0);
      min-height: 100%;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease), opacity 0.2s; }
    a:hover { color: #7af0de; text-decoration: underline; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; line-height: 1.28; font-weight: 700; }
    p { margin: 0 0 1em; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px; background: var(--primary); color: #fff;
      padding: 8px 14px; border-radius: 8px; z-index: 10000;
    }
    .skip:focus { left: 12px; }
    .container { width: min(100% - 40px, var(--container)); margin-inline: auto; }
    .mono { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-variant-numeric: tabular-nums; }
    .topbar {
      background: #04080f;
      border-bottom: 1px solid var(--line);
      font-size: 13px;
      color: var(--text-dim);
      height: 38px;
      display: flex;
      align-items: center;
      transition: transform 0.28s var(--ease), opacity 0.28s;
    }
    .topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .topbar-left, .topbar-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
    .topbar a { color: var(--text-dim); text-decoration: none; }
    .topbar a:hover { color: var(--accent); }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid var(--line); border-radius: 999px;
      padding: 2px 10px; color: var(--accent); font-size: 12px;
      background: rgba(62, 224, 200, 0.06);
    }
    .badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); display: inline-block; }
    header.site-header { position: relative; z-index: 80; }
    header.site-header.is-compact .topbar { transform: translateY(-100%); opacity: 0; pointer-events: none; position: absolute; width: 100%; }
    .nav-main {
      background: rgba(7, 14, 24, 0.78);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      position: sticky; top: 0; z-index: 90;
    }
    .nav-inner {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
      min-height: 70px;
      display: flex; align-items: center; justify-content: space-between; gap: 18px;
    }
    .brand {
      display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; flex-shrink: 0;
    }
    .brand:hover { text-decoration: none; color: var(--text); }
    .brand-mark {
      width: 36px; height: 36px; display: grid; place-items: center;
      border: 1px solid var(--accent); border-radius: 8px;
      box-shadow: inset 0 0 10px rgba(62, 224, 200, 0.25), 0 0 12px rgba(27, 138, 168, 0.35);
      background: #071018;
    }
    .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
    .brand-text strong { font-size: 16px; font-weight: 700; }
    .brand-text span { font-size: 11px; color: var(--text-dim); letter-spacing: 0.12em; }
    .nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
    .nav-links a {
      position: relative; color: var(--text-dim); text-decoration: none;
      padding: 10px 10px; font-size: 14px; border-radius: 8px;
    }
    .nav-links a:hover { color: var(--text); text-decoration: none; background: rgba(62, 224, 200, 0.06); }
    .nav-links a.is-active { color: var(--accent); }
    .nav-links a.is-active::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px;
      background: var(--accent); box-shadow: 0 0 8px var(--accent); border-radius: 2px;
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line);
      background: rgba(8, 18, 30, 0.7); border-radius: 10px; color: var(--text);
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--text); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-btn);
      border: 1px solid transparent; font-size: 14px; font-weight: 600;
      text-decoration: none; transition: 0.2s var(--ease); cursor: pointer;
    }
    .btn:hover { text-decoration: none; }
    .btn-primary {
      background: var(--primary); color: #f4fcff;
      box-shadow: 0 0 0 1px rgba(62, 224, 200, 0.18), 0 8px 20px rgba(27, 138, 168, 0.28);
    }
    .btn-primary:hover { background: #22a3c4; color: #fff; box-shadow: var(--glow), 0 8px 24px rgba(27, 138, 168, 0.4); }
    .btn-primary:active { transform: translateY(1px); background: var(--primary-2); }
    .btn-primary:focus-visible { outline: 2px solid var(--accent); box-shadow: 0 0 0 4px rgba(27, 138, 168, 0.45); }
    .btn-ghost {
      background: transparent; color: var(--text); border-color: var(--line);
    }
    .btn-ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 14px rgba(62, 224, 200, 0.18); }
    .btn[disabled] { opacity: 0.45; box-shadow: none; pointer-events: none; }
    .drawer {
      position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
      opacity: 0; pointer-events: none; transition: opacity 0.25s; z-index: 120;
    }
    .drawer.is-open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; bottom: 0; width: min(86vw, 360px);
      background: #08131e; border-left: 1px solid var(--line);
      padding: 24px 20px 40px; overflow: auto; transform: translateX(100%); transition: transform 0.28s var(--ease);
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer-panel a { display: block; color: var(--text); padding: 12px 8px; min-height: 44px; text-decoration: none; border-bottom: 1px solid rgba(94, 168, 186, 0.12); }
    .drawer-close { width: 44px; height: 44px; border: 1px solid var(--line); background: transparent; color: var(--text); border-radius: 10px; }
    section { position: relative; }
    .sec { padding: 108px 0; }
    .sec-alt { background: var(--bg-1); }
    .sec-deep { background: var(--bg-deep); }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--accent); font-size: 13px; letter-spacing: 0.08em; margin-bottom: 12px;
    }
    .kicker::before { content: ""; width: 18px; height: 2px; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
    .sec-head { max-width: 760px; margin-bottom: 40px; }
    .sec-head h2 { font-size: 32px; margin-bottom: 14px; }
    .sec-head h2 .tick { display: inline-block; width: 8px; height: 22px; background: var(--accent); margin-right: 10px; box-shadow: 0 0 10px var(--accent); vertical-align: -3px; }
    .sec-head p { color: var(--text-dim); font-size: 16px; }
    .glass {
      background: var(--bg-2);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .hero {
      min-height: min(88vh, 860px);
      position: relative; overflow: hidden;
      background: #050910;
    }
    .slides { position: relative; min-height: min(88vh, 860px); }
    .slide {
      position: absolute; inset: 0; opacity: 0; pointer-events: none;
      transition: opacity 0.7s ease;
      background-size: cover; background-position: center;
    }
    .slide.is-active { opacity: 1; pointer-events: auto; }
    .slide::before {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(5, 9, 16, 0.88) 0%, rgba(5, 9, 16, 0.62) 48%, rgba(5, 9, 16, 0.35) 100%),
        repeating-linear-gradient(0deg, transparent 0 3px, rgba(62, 224, 200, 0.035) 3px 4px);
    }
    .slide-inner {
      position: relative; z-index: 2;
      width: min(100% - 40px, var(--container));
      margin: 0 auto; min-height: min(88vh, 860px);
      display: flex; align-items: center; padding: 90px 0 80px;
    }
    .hero-card {
      max-width: 680px; padding: 32px 34px;
      background: rgba(8, 18, 30, 0.62);
      border: 1px solid var(--line);
      border-radius: 16px;
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow-card);
    }
    .hero-card h1, .hero-card .hero-title {
      font-size: clamp(28px, 4.4vw, 46px); font-weight: 700; margin-bottom: 16px;
    }
    .hero-card .lead { color: var(--text-dim); font-size: 16px; line-height: 1.8; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-hud {
      margin-top: 22px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px;
    }
    .hud-cell {
      border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: rgba(4, 12, 20, 0.5);
    }
    .hud-cell b { display: block; font-size: 18px; color: var(--accent); font-variant-numeric: tabular-nums; font-family: ui-monospace, Menlo, Consolas, monospace; }
    .hud-cell span { font-size: 12px; color: var(--text-dim); }
    .hero-nav-btn {
      position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
      width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line);
      background: rgba(8, 16, 26, 0.7); color: var(--text);
    }
    .hero-nav-btn.prev { left: 16px; }
    .hero-nav-btn.next { right: 16px; }
    .hero-nav-btn:hover { border-color: var(--accent); color: var(--accent); }
    .hero-dots {
      position: absolute; left: 0; right: 0; bottom: 22px; z-index: 3;
      display: flex; justify-content: center; gap: 8px;
    }
    .hero-dots button {
      width: 10px; height: 10px; border-radius: 50%; border: 0; background: rgba(255,255,255,0.28);
    }
    .hero-dots button.is-on { background: var(--accent); box-shadow: 0 0 10px var(--accent); width: 22px; border-radius: 8px; }
    .metrics-wrap { display: grid; grid-template-columns: 1.35fr 0.9fr; gap: 22px; align-items: stretch; }
    .bento { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: auto auto; gap: 14px; }
    .tile { padding: 18px 18px 16px; }
    .tile .label { font-size: 13px; color: var(--text-dim); }
    .tile .val { font-size: 32px; font-weight: 700; font-variant-numeric: tabular-nums; font-family: ui-monospace, Menlo, Consolas, monospace; margin: 6px 0 4px; }
    .tile .unit { font-size: 13px; color: var(--accent); }
    .tile .trend { font-size: 12px; color: var(--ok); }
    .tile-lead { grid-column: 1 / 2; grid-row: 1 / 3; padding: 26px; }
    .tile-lead .val { font-size: 52px; color: var(--accent); text-shadow: 0 0 18px rgba(62, 224, 200, 0.35); }
    .hud-side { overflow: hidden; min-height: 280px; }
    .hud-side img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
    .split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
    .split img { width: 100%; border-radius: 14px; border: 1px solid var(--line); }
    .spec-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 18px; }
    .spec-table th, .spec-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
    .spec-table th { color: var(--text-dim); font-weight: 500; width: 34%; }
    .spec-table td { font-variant-numeric: tabular-nums; }
    .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .chip {
      font-size: 12px; padding: 4px 12px; border-radius: 999px;
      border: 1px solid var(--line); color: var(--accent); background: rgba(62,224,200,0.06);
    }
    .cap-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 16px; }
    .cap-card { padding: 22px; min-height: 220px; }
    .cap-card--lead { grid-column: span 1; grid-row: span 2; }
    .cap-card h3 { font-size: 20px; margin-bottom: 10px; }
    .cap-card ul { margin: 10px 0 14px; }
    .cap-card li { position: relative; padding-left: 16px; color: var(--text-dim); font-size: 14px; margin: 6px 0; }
    .cap-card li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 6px; border-radius: 1px; background: var(--accent); }
    .progress { height: 4px; background: rgba(255,255,255,0.08); border-radius: 4px; margin: 12px 0; }
    .progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 4px; }
    .weak-link { font-size: 13px; color: var(--accent); }
    .sol-grid { display: grid; grid-template-columns: 1fr 1.22fr 1fr; gap: 16px; }
    .sol-card { overflow: hidden; display: flex; flex-direction: column; }
    .sol-card img { width: 100%; height: 180px; object-fit: cover; }
    .sol-card .body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .sol-card h3 { font-size: 20px; }
    .sol-card p { color: var(--text-dim); font-size: 14px; }
    .bar { height: 8px; background: rgba(255,255,255,0.08); border-radius: 8px; overflow: hidden; }
    .bar > i { display: block; height: 100%; background: var(--primary); }
    .sol-card.is-feature { box-shadow: 0 0 0 1px var(--accent), 0 0 24px rgba(62, 224, 200, 0.22); }
    .param { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-dim); }
    .param b { color: var(--text); font-variant-numeric: tabular-nums; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
    .cmp { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 14px; }
    .cmp th, .cmp td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); }
    .cmp thead th { background: #0c1c2a; color: var(--text); }
    .cmp tbody tr:nth-child(odd) { background: rgba(10, 24, 36, 0.55); }
    .cmp tbody tr:nth-child(even) { background: rgba(6, 14, 22, 0.4); }
    .cmp .win { color: var(--ok); font-weight: 600; }
    .cmp .lose { color: var(--warn); }
    .note { margin-top: 12px; font-size: 13px; color: var(--text-dim); }
    .case-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; align-items: stretch; }
    .idea { font-size: 26px; line-height: 1.45; }
    .case-list { display: grid; gap: 14px; }
    .case-item { padding: 18px; display: grid; grid-template-columns: 140px 1fr; gap: 14px; }
    .case-item img { width: 140px; height: 92px; object-fit: cover; border-radius: 10px; }
    .case-item h3 { font-size: 16px; margin-bottom: 6px; }
    .case-item p { font-size: 13px; color: var(--text-dim); margin: 0; }
    .timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 0; right: 0; top: 18px; height: 1px; background: var(--line);
    }
    .node { position: relative; padding-top: 40px; }
    .node::before {
      content: ""; position: absolute; top: 12px; left: 0; width: 12px; height: 12px; border-radius: 50%;
      background: var(--accent); box-shadow: 0 0 10px var(--accent);
    }
    .node h3 { font-size: 15px; margin-bottom: 8px; }
    .node p { font-size: 13px; color: var(--text-dim); }
    .node .mini { height: 4px; background: rgba(255,255,255,0.08); border-radius: 4px; margin-top: 10px; }
    .node .mini i { display: block; height: 100%; background: var(--primary); }
    .scene-bento { display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-template-rows: 220px 220px; gap: 14px; }
    .scene { position: relative; overflow: hidden; border-radius: 14px; border: 1px solid var(--line); }
    .scene img { width: 100%; height: 100%; object-fit: cover; }
    .scene figcaption {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 16px;
      background: linear-gradient(transparent, rgba(4, 10, 18, 0.92));
    }
    .scene h3 { font-size: 18px; margin-bottom: 4px; }
    .scene p { font-size: 13px; color: var(--text-dim); margin: 0 0 8px; }
    .scene-lead { grid-row: span 2; }
    .story-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
    .story-main { padding: 0; overflow: hidden; display: grid; grid-template-columns: 1.1fr 1fr; }
    .story-main img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
    .story-main .copy, .story-side { padding: 22px; }
    .story-side { display: grid; gap: 16px; }
    .quote { color: var(--text-dim); font-size: 15px; }
    .who { margin-top: 12px; font-size: 13px; color: var(--accent); }
    .reviews { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .review { padding: 20px; }
    .review p { color: var(--text); font-size: 14px; }
    .review p::before { content: "“"; color: var(--accent); font-size: 28px; line-height: 0; margin-right: 4px; }
    .news-list { display: grid; gap: 14px; }
    .news-item {
      display: grid; grid-template-columns: 220px 1fr auto; gap: 18px; align-items: center; padding: 12px;
    }
    .news-item img { width: 220px; height: 124px; object-fit: cover; border-radius: 10px; }
    .news-item h3 { font-size: 18px; margin-bottom: 6px; }
    .news-item p { font-size: 14px; color: var(--text-dim); margin: 0; }
    .news-item time { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
    .more-row { margin-top: 18px; }
    .guard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .guard { display: flex; gap: 14px; padding: 18px; align-items: flex-start; }
    .ico {
      width: 40px; height: 40px; flex-shrink: 0; border: 1px solid var(--line); border-radius: 10px;
      display: grid; place-items: center; color: var(--accent);
    }
    .guard h3 { font-size: 16px; margin-bottom: 6px; }
    .guard p { font-size: 14px; color: var(--text-dim); margin: 0; }
    .qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .qa { padding: 16px 18px; }
    .qa dt { font-weight: 700; margin-bottom: 6px; }
    .qa dd { margin: 0; color: var(--text-dim); font-size: 14px; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item { overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: transparent; border: 0; color: var(--text);
      padding: 16px 18px; min-height: 52px; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 16px;
    }
    .faq-item .ico-plus { width: 18px; height: 18px; position: relative; flex-shrink: 0; }
    .faq-item .ico-plus::before, .faq-item .ico-plus::after {
      content: ""; position: absolute; background: var(--accent); left: 0; right: 0; top: 8px; height: 2px;
    }
    .faq-item .ico-plus::after { transform: rotate(90deg); transition: transform 0.2s; }
    .faq-item.is-open .ico-plus::after { transform: rotate(0deg); }
    .faq-item .ans { display: none; padding: 0 18px 16px; color: var(--text-dim); font-size: 14px; }
    .faq-item.is-open .ans { display: block; }
    .convert { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; }
    .form-box { padding: 24px; }
    .form-row { margin-bottom: 14px; }
    label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text-dim); }
    input[type="text"], input[type="tel"], input[type="email"], select, textarea {
      width: 100%; min-height: 44px; border-radius: 10px; border: 1px solid var(--line);
      background: rgba(4, 10, 18, 0.7); color: var(--text); padding: 10px 12px;
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(62, 224, 200, 0.15); outline: none; }
    .is-invalid { border-color: var(--warn) !important; }
    .form-msg { min-height: 24px; font-size: 14px; margin-bottom: 8px; }
    .form-msg.ok { color: var(--ok); }
    .form-msg.err { color: var(--warn); }
    .check { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--text-dim); }
    .check input { width: 20px; height: 20px; margin-top: 2px; }
    .points li { padding-left: 18px; position: relative; color: var(--text-dim); margin: 8px 0; }
    .points li::before { content: ""; width: 7px; height: 7px; background: var(--accent); position: absolute; left: 0; top: 0.55em; }
    footer.site-footer { background: #02050a; border-top: 1px solid var(--line); padding: 56px 0 0; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px; padding-bottom: 28px; }
    .foot-grid h3 { font-size: 16px; margin-bottom: 12px; }
    .foot-grid p, .foot-grid a, .foot-grid li { color: var(--text-dim); font-size: 14px; }
    .foot-grid a { text-decoration: none; }
    .foot-grid a:hover { color: var(--accent); }
    .foot-map { display: grid; gap: 8px; }
    .legal { font-size: 13px; line-height: 1.9; }
    .copybar {
      border-top: 1px solid var(--line); padding: 16px 0 22px; color: var(--text-dim); font-size: 13px;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    }
    @media (max-width: 1199px) {
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .bento { grid-template-columns: 1fr 1fr; }
      .tile-lead { grid-column: 1 / -1; grid-row: auto; }
      .metrics-wrap, .split, .case-grid, .story-grid, .convert { grid-template-columns: 1fr; }
      .cap-grid, .sol-grid { grid-template-columns: 1fr 1fr; }
      .cap-card--lead { grid-column: span 2; grid-row: auto; }
      .scene-bento { grid-template-columns: 1fr 1fr; grid-template-rows: 200px 200px 200px; }
      .scene-lead { grid-row: span 1; grid-column: span 2; }
      .reviews { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr 1fr 1fr; }
      .timeline::before { display: none; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 767px) {
      .container, .topbar-inner, .nav-inner, .slide-inner { width: min(100% - 28px, var(--container)); }
      .sec { padding: 64px 0; }
      .sec-head h2 { font-size: 24px; }
      .topbar { height: auto; padding: 6px 0; }
      .topbar-inner { flex-direction: column; align-items: flex-start; }
      .hero, .slides, .slide, .slide-inner { min-height: 640px; }
      .hero-card { padding: 22px 18px; }
      .hero-hud { grid-template-columns: 1fr 1fr; }
      .bento, .cap-grid, .sol-grid, .qa-grid, .guard-grid, .reviews, .foot-grid { grid-template-columns: 1fr; }
      .cap-card--lead, .scene-lead { grid-column: auto; }
      .scene-bento { grid-template-columns: 1fr; grid-template-rows: none; }
      .scene { min-height: 200px; }
      .news-item, .case-item, .story-main { grid-template-columns: 1fr; }
      .news-item img, .case-item img { width: 100%; height: 160px; }
      .timeline { grid-template-columns: 1fr; }
      .node { padding-top: 0; padding-left: 24px; border-left: 1px solid var(--line); }
      .node::before { left: -6px; top: 6px; }
      .hero-nav-btn.prev { left: 8px; }
      .hero-nav-btn.next { right: 8px; }
    }
    @media (max-width: 520px) {
      .hero-actions { flex-direction: column; }
      .hero-actions .btn { width: 100%; }
      .hud-cell b { font-size: 16px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition: none !important; animation: none !important; }
    }