/* roulang page: index */
:root {
      --green: #0F5C56;
      --green-deep: #0A4440;
      --green-soft: #E4F0EE;
      --amber: #C67A1A;
      --amber-deep: #A46312;
      --steel: #3F4B55;
      --copper: #8C5A32;
      --paper: #FFFBF5;
      --concrete: #F3EFE8;
      --graphite: #1E2321;
      --footer: #141716;
      --ink: #1C211F;
      --muted: #5C6561;
      --line: #D8D1C6;
      --white: #FFFdf8;
      --danger: #B42318;
      --radius: 8px;
      --radius-sm: 6px;
      --shadow: 0 4px 8px rgba(30, 35, 33, 0.14);
      --shadow-hover: 0 8px 14px rgba(30, 35, 33, 0.16);
      --space: 24px;
      --header-top: 40px;
      --header-main: 72px;
      --max: 1240px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.82;
      color: var(--ink);
      background: var(--concrete);
      letter-spacing: 0.01em;
    }
    img { max-width: 100%; display: block; height: auto; object-fit: cover; }
    a { color: var(--green); text-decoration: none; transition: color .2s ease, border-color .2s ease; }
    a:hover { color: var(--amber-deep); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.03em; line-height: 1.28; color: var(--ink); }
    p { margin: 0 0 1em; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }
    .container { width: min(100% - 32px, var(--max)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 16px; top: 16px; z-index: 80; background: var(--paper); padding: 8px 12px; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 20px; border-radius: 6px; border: 1px solid transparent;
      font-weight: 600; font-size: 15px; letter-spacing: 0.02em; text-decoration: none;
      transition: transform .18s ease, background .18s ease, box-shadow .18s ease, color .18s ease, border-color .18s ease;
    }
    .btn-primary {
      background: var(--green); color: #F7FFFD; box-shadow: var(--shadow);
    }
    .btn-primary:hover {
      background: var(--green-deep); color: #fff; transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      text-decoration: underline;
      text-decoration-color: var(--amber);
      text-underline-offset: 5px;
    }
    .btn-ghost {
      background: transparent; color: var(--paper); border-color: rgba(255,251,245,.45);
    }
    .btn-ghost:hover { border-color: var(--amber); color: #fff; }
    .btn-line {
      background: var(--paper); color: var(--steel); border-color: var(--steel);
    }
    .btn-line:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }

    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 28px; padding: 0 10px; border: 1px solid var(--line);
      background: var(--paper); color: var(--steel); font-size: 12px; border-radius: 4px;
    }
    .badge b { color: var(--green); font-weight: 700; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--copper); font-size: 13px; font-weight: 700; letter-spacing: 0.12em;
      text-transform: uppercase; margin-bottom: 12px;
    }
    .kicker::before { content: ""; width: 18px; height: 2px; background: var(--copper); }

    .site-header { position: sticky; top: 0; z-index: 50; }
    .topbar {
      height: var(--header-top); background: #d9d3c8; color: var(--steel);
      display: flex; align-items: center; font-size: 13px; border-bottom: 1px solid #cfc8bb;
    }
    .topbar .container {
      display: grid; grid-template-columns: 1.1fr 1.3fr auto; align-items: center; gap: 16px;
    }
    .topbar-trust { text-align: center; color: var(--green-deep); font-weight: 600; }
    .topbar-contact { display: flex; gap: 16px; justify-content: flex-end; }
    .topbar a { color: var(--steel); }
    .topbar a:hover { color: var(--green); }
    .navbar {
      height: var(--header-main); background: var(--paper);
      border-bottom: 1px solid var(--line); box-shadow: 0 4px 8px rgba(30,35,33,.06);
    }
    .navbar .container {
      height: 100%; display: flex; align-items: center; gap: 24px;
    }
    .logo {
      display: flex; flex-direction: column; line-height: 1.15; min-width: 168px; color: var(--ink);
    }
    .logo-mark { font-size: 18px; font-weight: 700; color: var(--green); }
    .logo-sub { font-size: 12px; color: var(--copper); letter-spacing: 0.08em; }
    .nav-links { display: flex; gap: 6px; flex: 1; justify-content: center; }
    .nav-links a {
      position: relative; color: var(--steel); font-size: 15px; font-weight: 600;
      min-height: 44px; display: inline-flex; align-items: center; padding: 0 10px;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 10px; height: 2px;
      background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--green); }
    .nav-links a.is-active::after, .nav-links a:hover::after { transform: scaleX(1); }
    .nav-cta { margin-left: auto; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: var(--paper); border-radius: 6px;
      flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    }
    .menu-toggle span { width: 18px; height: 2px; background: var(--steel); display: block; }
    .drawer {
      display: none; position: fixed; inset: 0; background: rgba(20,23,22,.55); z-index: 60;
    }
    .drawer.is-open { display: block; }
    .drawer-panel {
      width: min(86vw, 360px); height: 100%; margin-left: auto; background: var(--paper); padding: 24px 18px;
      display: flex; flex-direction: column; gap: 6px;
    }
    .drawer-panel a {
      min-height: 48px; display: flex; align-items: center; padding: 0 12px; color: var(--ink); font-weight: 600;
      border-bottom: 1px solid var(--line);
    }

    .hero {
      position: relative; min-height: 760px; color: #fff; overflow: hidden;
      isolation: isolate;
    }
    .hero-slides, .hero-slide { position: absolute; inset: 0; }
    .hero-slide { opacity: 0; transition: opacity .6s ease; }
    .hero-slide.is-active { opacity: 1; z-index: 1; }
    .hero-slide img { width: 100%; height: 100%; object-fit: cover; }
    .hero-mask {
      position: absolute; inset: 0; z-index: 2;
      background: linear-gradient(90deg, rgba(20,23,22,.82) 0%, rgba(20,23,22,.55) 48%, rgba(20,23,22,.28) 100%);
    }
    .hero-content {
      position: relative; z-index: 3; padding: 88px 0 72px;
    }
    .hero h1 { font-size: 42px; color: #fff; max-width: 18ch; margin-bottom: 16px; }
    .hero-lead { max-width: 760px; font-size: 16px; line-height: 1.9; color: #efe8dc; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
    .trust-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
    .trust-row .badge { background: rgba(255,251,245,.1); color: #efe8dc; border-color: rgba(255,251,245,.2); }
    .search-dock {
      max-width: 820px; background: rgba(255,251,245,.94); border: 1px solid #eadfce; border-radius: 10px;
      padding: 14px; box-shadow: var(--shadow);
    }
    .search-dock form { display: flex; gap: 8px; }
    .search-dock input {
      flex: 1; min-height: 48px; border: 1px solid var(--line); border-radius: 6px; padding: 0 14px;
      background: #fff; color: var(--ink); font-size: 15px;
    }
    .search-dock input:focus { border-color: var(--green); }
    .hot-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
    .hot-chips a, .hot-chips button {
      border: 1px solid #d7cbb8; background: #fff; color: var(--steel); min-height: 36px; padding: 0 12px;
      border-radius: 4px; font-size: 13px; font-weight: 600;
    }
    .hot-chips a:hover, .hot-chips button:hover { border-color: var(--green); color: var(--green); }
    .hero-controls {
      position: absolute; z-index: 4; right: 24px; bottom: 24px; display: flex; align-items: center; gap: 8px;
    }
    .hero-controls button {
      width: 44px; height: 44px; border: 1px solid rgba(255,251,245,.3); background: rgba(20,23,22,.45); color: #fff; border-radius: 6px;
    }
    .hero-dots { display: flex; gap: 6px; }
    .hero-dots button {
      width: 10px; height: 10px; border-radius: 50%; border: 0; padding: 0; background: rgba(255,251,245,.4);
    }
    .hero-dots button.is-active { background: var(--amber); }

    main section { padding: 104px 0; }
    .sec-head { max-width: 760px; margin-bottom: 36px; }
    .sec-head h2 { font-size: 28px; margin-bottom: 12px; }
    .sec-head p { color: var(--muted); margin: 0; }

    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
    }
    .intro-visual { position: relative; }
    .intro-visual img {
      width: 100%; height: 460px; border-radius: 8px; border: 1px solid var(--line); box-shadow: var(--shadow);
    }
    .intro-stamp {
      position: absolute; left: 16px; bottom: 16px; background: var(--paper); border: 1px solid var(--line);
      padding: 12px 14px; font-size: 13px; max-width: 280px; box-shadow: var(--shadow);
    }
    .param-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
    .evidence {
      border-left: 3px solid var(--copper); padding: 8px 0 8px 14px; color: var(--steel); font-size: 14px;
    }

    .modules-wrap {
      display: grid; grid-template-columns: 280px 1fr; gap: 24px;
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
    }
    .module-index { background: #efe8dc; padding: 12px; }
    .module-index button {
      width: 100%; text-align: left; min-height: 52px; border: 0; background: transparent;
      padding: 0 14px; font-weight: 700; color: var(--steel); border-left: 3px solid transparent;
    }
    .module-index button.is-active, .module-index button:hover {
      background: var(--paper); color: var(--green); border-left-color: var(--green);
    }
    .module-panel { display: none; padding: 28px; grid-template-columns: 1.1fr .9fr; gap: 24px; }
    .module-panel.is-active { display: grid; }
    .module-panel img { width: 100%; height: 260px; border-radius: 8px; }
    .module-panel li {
      position: relative; padding-left: 16px; margin-bottom: 8px; color: var(--muted);
    }
    .module-panel li::before {
      content: ""; position: absolute; left: 0; top: 11px; width: 7px; height: 7px; background: var(--green);
    }

    .cap-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
    }
    .cap-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 22px 20px 18px;
      box-shadow: var(--shadow); min-height: 230px; display: flex; flex-direction: column;
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    }
    .cap-card:hover { transform: translateY(-3px); border-color: var(--green); box-shadow: var(--shadow-hover); }
    .cap-card svg { width: 28px; height: 28px; stroke: var(--steel); fill: none; stroke-width: 1.7; margin-bottom: 14px; }
    .cap-card h3 { font-size: 18px; margin-bottom: 8px; }
    .cap-card p { color: var(--muted); font-size: 14px; flex: 1; }
    .cap-card a { font-size: 14px; font-weight: 700; color: var(--copper); }

    .sol-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 16px; }
    .sol-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
      box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform .18s ease, border-color .18s ease;
    }
    .sol-card:hover { transform: translateY(-3px); border-color: var(--green); }
    .sol-card img { width: 100%; height: 210px; }
    .sol-card.featured img { height: 280px; }
    .sol-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .sol-no { color: var(--copper); font-weight: 700; font-variant-numeric: tabular-nums; }
    .sol-body h3 { font-size: 20px; }
    .sol-body p, .sol-body li { color: var(--muted); font-size: 14px; }
    .sol-body .btn { margin-top: auto; align-self: flex-start; }

    .scene-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
    .scene-track {
      display: grid; grid-auto-flow: column; grid-auto-columns: 72%; gap: 12px; overflow-x: auto; padding-bottom: 8px;
    }
    .scene-card {
      border: 1px solid var(--line); background: var(--paper); border-radius: 8px; padding: 16px; min-height: 150px;
      text-align: left; color: inherit;
    }
    .scene-card.is-active { border-color: var(--green); box-shadow: var(--shadow); }
    .scene-card h3 { font-size: 18px; margin-bottom: 6px; }
    .scene-card p { font-size: 14px; color: var(--muted); margin: 0; }
    .scene-stage img { width: 100%; height: 420px; border-radius: 8px; }
    .scene-stage figcaption { margin-top: 10px; color: var(--muted); font-size: 14px; }

    .demo {
      background: var(--graphite); color: #efe8dc;
    }
    .demo .sec-head h2, .demo .sec-head p, .demo h3 { color: #fff; }
    .demo-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; }
    .ui-frame {
      background: #2a302e; border: 1px solid #3d4542; border-radius: 10px; padding: 12px; box-shadow: var(--shadow);
    }
    .ui-frame img { width: 100%; height: 390px; border-radius: 6px; }
    .step-list { display: flex; flex-direction: column; gap: 12px; }
    .step {
      border: 1px solid #3d4542; background: #262b29; border-radius: 8px; padding: 14px 16px;
    }
    .step b { color: var(--amber); font-size: 12px; letter-spacing: .12em; display: block; margin-bottom: 4px; }
    .step.is-on { border-color: var(--green); }

    .philosophy {
      position: relative; color: #efe8dc; isolation: isolate; padding: 96px 0;
    }
    .philosophy-bg { position: absolute; inset: 0; z-index: -2; }
    .philosophy-bg img { width: 100%; height: 100%; filter: brightness(.28) saturate(.7); }
    .philosophy::after {
      content: ""; position: absolute; inset: 0; z-index: -1;
      background-image: linear-gradient(rgba(30,35,33,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(30,35,33,.2) 1px, transparent 1px);
      background-size: 28px 28px;
    }
    .quote { font-size: 30px; line-height: 1.45; max-width: 18em; margin-bottom: 28px; color: #fff; }
    .philo-links { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 720px; }
    .philo-links a {
      display: grid; grid-template-columns: 92px 1fr; gap: 12px; align-items: center;
      background: rgba(20,23,22,.62); border: 1px solid rgba(255,251,245,.16); color: #efe8dc; padding: 10px; border-radius: 8px;
    }
    .philo-links img { width: 92px; height: 64px; }

    .case-item {
      display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; align-items: center; margin-bottom: 42px;
    }
    .case-item:nth-child(even) { grid-template-columns: 1.1fr .9fr; }
    .case-item:nth-child(even) .case-copy { order: -1; }
    .case-item img { width: 100%; height: 320px; border-radius: 8px; box-shadow: var(--shadow); }
    .case-meta { color: var(--copper); font-size: 13px; font-weight: 700; margin-bottom: 8px; }
    .metric { display: flex; gap: 16px; margin-top: 14px; }
    .metric span { background: var(--green-soft); color: var(--green-deep); padding: 8px 10px; border-radius: 4px; font-size: 13px; font-weight: 700; }

    .story-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .story-main, .story-side {
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow);
    }
    .story-main { display: grid; grid-template-columns: 1fr 1fr; min-height: 360px; }
    .story-main img { height: 100%; min-height: 360px; }
    .story-main div, .story-side { padding: 22px; }
    .story-side + .story-side { margin-top: 16px; }
    .story-role { font-size: 13px; color: var(--copper); font-weight: 700; }

    .stats {
      background: #e7e1d6; padding: 56px 0;
    }
    .stats-grid {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; text-align: left;
    }
    .stat { border-left: 3px solid var(--green); padding: 8px 0 8px 14px; }
    .stat b {
      display: block; font-size: 32px; font-variant-numeric: tabular-nums; color: var(--green-deep); line-height: 1.1;
    }
    .stat span { color: var(--muted); font-size: 13px; }

    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
    .price-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 24px 22px; box-shadow: var(--shadow);
    }
    .price-card.featured {
      border-color: var(--green); transform: translateY(-8px); box-shadow: var(--shadow-hover);
      background: #f7f3ea;
    }
    .price { font-size: 32px; color: var(--green); font-variant-numeric: tabular-nums; margin: 10px 0; }
    .price small { font-size: 14px; color: var(--muted); }
    .price-card li { padding: 7px 0 7px 14px; position: relative; color: var(--muted); font-size: 14px; }
    .price-card li::before { content: ""; width: 6px; height: 6px; background: var(--copper); position: absolute; left: 0; top: 14px; }
    .compare {
      margin-top: 28px; overflow-x: auto; border: 1px solid var(--line); background: var(--paper); border-radius: 8px;
    }
    .compare table { width: 100%; border-collapse: collapse; min-width: 680px; }
    .compare th, .compare td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
    .compare th { background: #efe8dc; }

    .review-wall {
      columns: 3; column-gap: 14px;
    }
    .review {
      break-inside: avoid; background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
      padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow);
    }
    .stars { color: var(--amber); letter-spacing: 2px; font-size: 13px; margin-bottom: 8px; }
    .review p { font-size: 14px; color: var(--ink); }
    .review cite { font-style: normal; color: var(--muted); font-size: 13px; }

    .rep-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .logo-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
    .geom {
      height: 72px; border: 1px dashed var(--line); background: var(--paper); display: flex; align-items: center; justify-content: center;
      font-size: 12px; color: var(--steel); font-weight: 700; border-radius: 6px;
    }
    .flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 16px 0; }
    .flow div { background: var(--paper); border: 1px solid var(--line); padding: 14px; border-radius: 8px; }
    .flow b { display: block; color: var(--copper); font-size: 12px; margin-bottom: 4px; }
    .qual li { padding: 6px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px; }

    .news-list { display: flex; flex-direction: column; gap: 12px; }
    .news-item {
      display: grid; grid-template-columns: 180px 1fr auto; gap: 16px; align-items: center;
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 10px; box-shadow: var(--shadow);
    }
    .news-item img { width: 180px; height: 110px; border-radius: 6px; }
    .news-item h3 { font-size: 18px; margin-bottom: 6px; }
    .news-item p { color: var(--muted); font-size: 14px; margin: 0; }
    .news-item time { color: var(--copper); font-size: 13px; font-variant-numeric: tabular-nums; }

    .faq-item { border: 1px solid var(--line); background: var(--paper); border-radius: 8px; margin-bottom: 10px; overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: transparent; border: 0; min-height: 56px;
      padding: 12px 16px; display: flex; justify-content: space-between; gap: 12px; font-weight: 700; color: var(--ink);
    }
    .faq-item button span.plus { color: var(--copper); font-size: 20px; }
    .faq-item .faq-a { display: none; padding: 0 16px 16px; background: #f7f1e8; color: var(--muted); }
    .faq-item.is-open .faq-a { display: block; }

    .cta-sec { background: #e7efe8; }
    .cta-box {
      display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; background: var(--paper);
      border: 1px solid var(--line); border-radius: 10px; padding: 28px; box-shadow: var(--shadow);
    }
    form { display: grid; gap: 12px; }
    label { font-size: 13px; font-weight: 700; color: var(--steel); }
    input, select, textarea {
      width: 100%; border: 1px solid var(--line); border-radius: 6px; min-height: 44px; padding: 10px 12px; background: #fff;
    }
    textarea { min-height: 96px; resize: vertical; }
    .error input, .error select, .error textarea { border-color: var(--amber); }
    .err { color: var(--amber-deep); font-size: 12px; display: none; }
    .error .err { display: block; }
    .form-success {
      display: none; background: var(--green-soft); border: 1px solid var(--green); color: var(--green-deep);
      padding: 16px; border-radius: 8px;
    }
    .cta-side p { color: var(--muted); }
    .cta-side a { font-weight: 700; }

    .site-footer { background: var(--footer); color: #c9c3b8; padding: 56px 0 28px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr .9fr; gap: 24px; margin-bottom: 28px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #c9c3b8; display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: #fff; }
    .copyright { border-top: 1px solid #2a312e; padding-top: 16px; font-size: 13px; }

    @media (max-width: 1280px) {
      .hero h1 { font-size: 38px; }
    }
    @media (max-width: 1024px) {
      .topbar .container { grid-template-columns: auto 1fr auto; }
      .topbar-trust { display: none; }
      .nav-links, .nav-cta { display: none; }
      .menu-toggle { display: flex; margin-left: auto; }
      .intro-grid, .modules-wrap, .cap-grid, .sol-grid, .scene-layout, .demo-grid, .case-item, .case-item:nth-child(even), .story-grid, .story-main, .stats-grid, .price-grid, .rep-grid, .cta-box, .foot-grid {
        grid-template-columns: 1fr;
      }
      .module-panel, .module-panel.is-active { display: none; }
      .module-panel.is-active { display: block; }
      .case-item:nth-child(even) .case-copy { order: 0; }
      .review-wall { columns: 2; }
      .news-item { grid-template-columns: 140px 1fr; }
      .news-item time { display: none; }
      main section { padding: 72px 0; }
      .hero { min-height: 680px; }
    }
    @media (max-width: 768px) {
      .hero-content { padding: 48px 0 64px; }
      .hero h1 { font-size: 30px; }
      .search-dock form { flex-direction: column; }
      .cap-grid, .flow, .logo-wall { grid-template-columns: 1fr 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
      .review-wall { columns: 1; }
      .quote { font-size: 24px; }
      .price-card.featured { transform: none; }
      .philo-links, .story-main { grid-template-columns: 1fr; }
      .story-main img { min-height: 220px; height: 220px; }
    }
    @media (max-width: 520px) {
      .topbar-contact span:first-child { display: none; }
      .hero { min-height: 640px; }
      .hero h1 { font-size: 28px; }
      .cap-grid, .flow, .logo-wall, .stats-grid { grid-template-columns: 1fr; }
      .intro-visual img, .ui-frame img, .scene-stage img { height: 240px; }
      .news-item { grid-template-columns: 1fr; }
      .news-item img { width: 100%; height: 180px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }

/* roulang page: index */
:root {
      --c-primary: #0F5C56;
      --c-primary-dark: #0A3F3B;
      --c-primary-soft: #E4F0EE;
      --c-accent: #C67A1A;
      --c-accent-soft: #F4E6D0;
      --c-steel: #3F4B55;
      --c-bg: #F3EFE8;
      --c-paper: #fffbf5;
      --c-dark: #1E2321;
      --c-footer: #141716;
      --c-copper: #8C5A32;
      --c-text: #1E2321;
      --c-muted: #5C6560;
      --c-border: #D8D1C6;
      --c-line: #C9C1B5;
      --c-light: #F7F4EE;
      --radius: 8px;
      --radius-sm: 6px;
      --shadow: 0 6px 0 rgba(30, 35, 33, .08);
      --shadow-hover: 0 8px 0 rgba(15, 92, 86, .14);
      --shadow-hard: 0 4px 0 rgba(20, 23, 22, .18);
      --container: 1220px;
      --header-top: 38px;
      --header-main: 70px;
      --space-section: 104px;
      --space-section-m: 64px;
      --focus: 0 0 0 2px #F3EFE8, 0 0 0 4px #C67A1A;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.82;
      color: var(--c-text);
      background: var(--c-bg);
      letter-spacing: .01em;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: var(--c-primary); text-decoration: none; }
    a:hover { color: var(--c-accent); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; letter-spacing: -.02em; line-height: 1.28; font-weight: 700; }
    p { margin: 0 0 1.05em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus { outline: none; }
    :focus-visible { box-shadow: var(--focus); outline: none; }
    .skip {
      position: absolute; left: -999px; top: 8px;
      background: var(--c-accent); color: #fff; padding: 8px 14px; z-index: 2000;
    }
    .skip:focus { left: 12px; }
    .container { width: min(100% - 36px, var(--container)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 1000;
      background: var(--c-paper);
      box-shadow: 0 4px 0 rgba(30, 35, 33, .06);
    }
    .topbar {
      height: var(--header-top);
      background: #d9d3c8;
      color: var(--c-steel);
      font-size: 13px;
      display: flex; align-items: center;
      border-bottom: 1px solid #cfc7ba;
    }
    .topbar .container {
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 12px;
    }
    .topbar-left, .topbar-trust, .topbar-right {
      display: flex; align-items: center; gap: 10px; min-height: 44px;
    }
    .topbar-trust { justify-content: center; gap: 16px; color: var(--c-primary-dark); font-weight: 500; }
    .topbar-right { justify-content: flex-end; }
    .topbar a { color: var(--c-steel); font-weight: 600; }
    .topbar a:hover { color: var(--c-primary); }
    .dot-sep { width: 4px; height: 4px; background: var(--c-copper); border-radius: 50%; }
    .mainnav { height: var(--header-main); display: flex; align-items: center; background: var(--c-paper); }
    .mainnav .container {
      display: flex; align-items: center; gap: 18px; width: min(100% - 36px, var(--container));
    }
    .brand { display: flex; align-items: center; gap: 10px; color: var(--c-dark); min-height: 44px; flex-shrink: 0; }
    .brand-mark {
      width: 42px; height: 42px;
      border: 1px solid var(--c-primary);
      background: var(--c-primary);
      color: #f4efe6;
      display: grid; place-items: center;
      font-weight: 700; letter-spacing: -.04em;
      font-size: 13px;
    }
    .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
    .brand-text strong { font-size: 16px; }
    .brand-text small { font-size: 12px; color: var(--c-copper); font-weight: 600; letter-spacing: .08em; }
    .nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
    .nav-links a {
      color: var(--c-steel);
      font-size: 14px; font-weight: 600;
      padding: 10px 11px; min-height: 44px;
      display: inline-flex; align-items: center;
      border-bottom: 2px solid transparent;
    }
    .nav-links a:hover, .nav-links a.is-active {
      color: var(--c-primary);
      border-bottom-color: var(--c-primary);
    }
    .nav-cta { margin-left: 8px; flex-shrink: 0; }
    .menu-toggle {
      display: none; margin-left: auto;
      width: 44px; height: 44px;
      border: 1px solid var(--c-border);
      background: var(--c-paper);
      color: var(--c-dark);
      padding: 0;
    }
    .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
      display: block; width: 18px; height: 2px; background: currentColor; position: relative;
    }
    .menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
    .menu-toggle span::before { top: -6px; }
    .menu-toggle span::after { top: 6px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px;
      border-radius: var(--radius-sm);
      font-weight: 600; font-size: 14px;
      border: 1px solid transparent;
      transition: background .2s, color .2s, transform .2s, box-shadow .2s, border-color .2s;
      text-decoration: none;
    }
    .btn-primary {
      background: var(--c-primary); color: #f7f4ee;
      box-shadow: var(--shadow-hard);
    }
    .btn-primary:hover {
      background: var(--c-primary-dark); color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 0 rgba(20, 23, 22, .18);
      background-image: linear-gradient(transparent 70%, transparent 70%), linear-gradient(var(--c-accent), var(--c-accent));
      background-size: 100% 2px; background-position: 0 100%; background-repeat: no-repeat;
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost {
      background: transparent; color: #f3efe8;
      border-color: #9aa39c;
    }
    .btn-ghost:hover { border-color: var(--c-accent); color: #fff; }
    .btn-line {
      background: var(--c-paper); color: var(--c-steel);
      border-color: var(--c-steel);
    }
    .btn-line:hover { color: var(--c-primary); border-color: var(--c-primary); transform: translateY(-2px); }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 28px; padding: 0 10px;
      border: 1px solid var(--c-border);
      background: var(--c-paper);
      color: var(--c-steel);
      font-size: 12px; font-weight: 600;
    }
    .badge i { width: 6px; height: 6px; background: var(--c-primary); border-radius: 50%; }
    .hero {
      position: relative; min-height: 680px;
      color: #f3efe8; overflow: hidden;
      isolation: isolate;
    }
    .hero-slides, .hero-slide {
      position: absolute; inset: 0;
    }
    .hero-slide { opacity: 0; transition: opacity .7s ease; }
    .hero-slide.is-active { opacity: 1; z-index: 1; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover;
      filter: saturate(.85) contrast(1.05);
    }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(180deg, rgba(20, 23, 22, .55) 0%, rgba(20, 23, 22, .72) 55%, rgba(20, 23, 22, .88) 100%),
        repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(243, 239, 232, .04) 28px),
        repeating-linear-gradient(90deg, transparent, transparent 27px, rgba(243, 239, 232, .03) 28px);
    }
    .hero-content {
      position: relative; z-index: 3;
      padding: 92px 0 78px;
      text-align: center;
    }
    .hero-kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: #e6d3b3; font-size: 13px; font-weight: 600; letter-spacing: .16em;
      margin-bottom: 16px;
    }
    .hero-kicker::before, .hero-kicker::after { content: ""; width: 18px; height: 1px; background: var(--c-copper); }
    .hero h1 {
      font-size: 42px; color: #fff; max-width: 18em; margin: 0 auto 16px;
    }
    .hero-lead {
      max-width: 760px; margin: 0 auto 26px;
      color: #ddd6cb; font-size: 16px; text-align: left;
    }
    .search-box {
      display: grid; grid-template-columns: 1fr auto;
      max-width: 720px; margin: 0 auto 16px;
      background: var(--c-paper);
      border: 1px solid #cfc6b8;
      box-shadow: var(--shadow-hard);
    }
    .search-box input {
      border: 0; background: transparent;
      min-height: 52px; padding: 0 16px;
      font-size: 15px; color: var(--c-text);
    }
    .search-box input:focus { outline: none; box-shadow: none; }
    .search-box:focus-within { box-shadow: var(--focus); }
    .chip-row {
      display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
      margin-bottom: 22px;
    }
    .chip {
      min-height: 36px; padding: 0 12px;
      border: 1px solid rgba(243, 239, 232, .28);
      color: #efe8dc; font-size: 13px; font-weight: 600;
      background: rgba(30, 35, 33, .28);
      display: inline-flex; align-items: center;
    }
    .chip:hover { border-color: var(--c-accent); color: #fff; }
    .hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
    .trust-row { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
    .trust-row .badge { background: rgba(20, 23, 22, .45); color: #efe8dc; border-color: rgba(243,239,232,.2); }
    .hero-nav, .hero-dots {
      position: absolute; z-index: 4;
    }
    .hero-nav {
      top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px;
      background: rgba(20,23,22,.55);
      border: 1px solid rgba(243,239,232,.25);
      color: #fff;
    }
    .hero-nav.prev { left: 16px; }
    .hero-nav.next { right: 16px; }
    .hero-nav:hover { background: var(--c-primary); }
    .hero-dots {
      left: 0; right: 0; bottom: 22px;
      display: flex; justify-content: center; gap: 8px;
    }
    .hero-dots button {
      width: 28px; height: 8px; padding: 0;
      background: rgba(243,239,232,.28);
      border: 0;
    }
    .hero-dots button.is-active { background: var(--c-accent); }
    main section { padding: var(--space-section) 0; position: relative; }
    .sec-head { margin-bottom: 36px; max-width: 760px; }
    .sec-head h2 { font-size: 28px; margin-bottom: 12px; }
    .sec-kicker {
      color: var(--c-copper); font-size: 13px; font-weight: 700; letter-spacing: .12em;
      margin-bottom: 8px;
    }
    .sec-head p { color: var(--c-muted); }
    .intro { background: var(--c-paper); }
    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
    }
    .frame-pic {
      position: relative; overflow: hidden;
      border: 1px solid var(--c-border);
      box-shadow: var(--shadow);
      border-radius: var(--radius);
    }
    .frame-pic img { width: 100%; height: 430px; object-fit: cover; }
    .frame-pic .tag {
      position: absolute; left: 12px; bottom: 12px;
      background: var(--c-dark); color: #f3efe8;
      font-size: 12px; padding: 6px 10px; font-weight: 600;
    }
    .fact {
      border-left: 3px solid var(--c-primary);
      padding: 10px 0 10px 14px;
      background: var(--c-light);
      margin: 18px 0;
      color: var(--c-steel); font-size: 14px;
    }
    .param-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .param {
      min-width: 120px; padding: 10px 12px;
      border: 1px solid var(--c-border); background: #fff;
      display: flex; flex-direction: column;
    }
    .param b { font-family: var(--mono); font-size: 16px; color: var(--c-primary); font-variant-numeric: tabular-nums; }
    .param span { font-size: 12px; color: var(--c-muted); }
    .modules { background: var(--c-bg); }
    .modules-layout { display: grid; grid-template-columns: 250px 1fr; gap: 22px; }
    .module-index { display: flex; flex-direction: column; gap: 6px; }
    .module-index button {
      text-align: left; min-height: 48px;
      border: 1px solid var(--c-border);
      background: var(--c-paper); color: var(--c-steel);
      padding: 8px 14px; font-weight: 600;
    }
    .module-index button.is-active, .module-index button:hover {
      background: var(--c-primary); color: #f7f4ee; border-color: var(--c-primary);
    }
    .module-panel {
      display: none;
      background: var(--c-paper);
      border: 1px solid var(--c-border);
      box-shadow: var(--shadow);
      padding: 24px;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
    }
    .module-panel.is-active { display: grid; }
    .module-panel h3 { font-size: 20px; margin-bottom: 10px; }
    .module-panel li {
      position: relative; padding-left: 16px; margin: 8px 0; color: var(--c-muted);
    }
    .module-panel li::before {
      content: ""; position: absolute; left: 0; top: .7em;
      width: 7px; height: 1px; background: var(--c-copper);
    }
    .module-panel img { width: 100%; height: 260px; object-fit: cover; border: 1px solid var(--c-border); }
    .acc-head { display: none; }
    .capabilities { background: var(--c-paper); }
    .cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .cap-card {
      background: var(--c-bg);
      border: 1px solid var(--c-border);
      border-radius: var(--radius);
      padding: 22px 20px 16px;
      box-shadow: var(--shadow);
      transition: transform .2s, border-color .2s, box-shadow .2s;
    }
    .cap-card:hover { transform: translateY(-3px); border-color: var(--c-primary); box-shadow: var(--shadow-hover); }
    .cap-card svg { width: 28px; height: 28px; stroke: var(--c-steel); fill: none; stroke-width: 1.6; }
    .cap-card h3 { font-size: 18px; margin: 12px 0 8px; }
    .cap-card p { color: var(--c-muted); font-size: 14px; min-height: 4.6em; }
    .text-link { font-size: 13px; font-weight: 700; color: var(--c-primary); border-bottom: 1px solid var(--c-copper); }
    .solutions { background: var(--c-bg); }
    .sol-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 16px; align-items: stretch; }
    .sol-card {
      background: var(--c-paper); border: 1px solid var(--c-border);
      box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: transform .2s, border-color .2s;
    }
    .sol-card:hover { transform: translateY(-3px); border-color: var(--c-primary); }
    .sol-card img { width: 100%; height: 210px; object-fit: cover; }
    .sol-card.featured img { height: 280px; }
    .sol-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .sol-no { font-family: var(--mono); color: var(--c-copper); font-weight: 600; font-size: 13px; }
    .sol-card h3 { font-size: 18px; }
    .sol-card .fit { font-size: 13px; color: var(--c-primary); font-weight: 600; }
    .sol-card li { font-size: 14px; color: var(--c-muted); padding-left: 14px; position: relative; margin: 6px 0; }
    .sol-card li::before { content: "／"; position: absolute; left: 0; color: var(--c-copper); }
    .scenes { background: var(--c-paper); }
    .scene-track {
      display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 1fr);
      gap: 12px; overflow-x: auto; padding-bottom: 8px; margin-bottom: 18px;
    }
    .scene-item {
      min-height: 76px; text-align: left;
      border: 1px solid var(--c-border); background: var(--c-bg);
      padding: 12px 14px; font-weight: 700;
    }
    .scene-item small { display: block; font-weight: 400; color: var(--c-muted); font-size: 12px; }
    .scene-item.is-active { background: var(--c-primary); color: #f7f4ee; border-color: var(--c-primary); }
    .scene-item.is-active small { color: #d7e4e1; }
    .scene-stage { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
    .scene-stage img { width: 100%; height: 360px; object-fit: cover; border: 1px solid var(--c-border); }
    .scene-copy { background: var(--c-bg); border: 1px solid var(--c-border); padding: 24px; }
    .demo { background: var(--c-dark); color: #ece7de; }
    .demo .sec-head p { color: #c4bfb6; }
    .demo-stage { display: grid; grid-template-columns: 1.15fr .85fr; min-height: 420px; border: 1px solid #323834; }
    .demo-screen { background: #141716; position: relative; }
    .demo-screen img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; opacity: .92; }
    .ui-frame {
      position: absolute; left: 16px; top: 16px; right: 16px;
      background: rgba(20,23,22,.72); border: 1px solid rgba(243,239,232,.16);
      padding: 12px 14px; font-size: 13px;
    }
    .demo-steps { background: var(--c-paper); color: var(--c-text); padding: 22px; }
    .step {
      display: grid; grid-template-columns: 42px 1fr; gap: 10px;
      padding: 12px 8px; border-bottom: 1px solid var(--c-border);
      width: 100%; text-align: left; background: transparent; border-left: 0; border-right: 0; border-top: 0;
      color: inherit;
    }
    .step b { font-family: var(--mono); color: var(--c-copper); }
    .step.is-active { background: var(--c-primary-soft); }
    .philosophy {
      background: var(--c-dark) url("/assets/images/22e25781076b26f2.webp") center/cover;
      color: #f3efe8;
    }
    .philosophy::before {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(20,23,22,.9), rgba(20,23,22,.72)),
        repeating-linear-gradient(0deg, transparent, transparent 24px, rgba(243,239,232,.05) 25px);
    }
    .philosophy .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.4fr .8fr; gap: 28px; align-items: end; }
    .quote { font-size: 30px; line-height: 1.45; font-weight: 700; max-width: 16em; }
    .quote span { display: block; margin-top: 12px; font-size: 15px; color: #cfc6b8; font-weight: 400; }
    .philo-entries { display: grid; gap: 12px; }
    .philo-entries a {
      display: grid; grid-template-columns: 88px 1fr; gap: 12px; align-items: center;
      background: rgba(20,23,22,.55); border: 1px solid rgba(243,239,232,.14);
      color: #f3efe8; padding: 8px;
      min-height: 88px;
    }
    .philo-entries img { width: 88px; height: 72px; object-fit: cover; }
    .cases { background: var(--c-paper); }
    .case-item {
      display: grid; grid-template-columns: .92fr 1.08fr; gap: 32px; align-items: center;
      padding: 28px 0; border-top: 1px solid var(--c-border);
    }
    .case-item:nth-child(even) { grid-template-columns: 1.08fr .92fr; }
    .case-item:nth-child(even) .case-pic { order: 2; }
    .case-item img { width: 100%; height: 280px; object-fit: cover; border: 1px solid var(--c-border); }
    .case-meta { font-size: 13px; color: var(--c-copper); font-weight: 700; letter-spacing: .08em; margin-bottom: 8px; }
    .result {
      margin-top: 12px; padding: 10px 12px;
      background: var(--c-primary-soft); color: var(--c-primary-dark); font-weight: 600; font-size: 14px;
    }
    .stories { background: var(--c-bg); }
    .story-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .story-main, .story-side {
      background: var(--c-paper); border: 1px solid var(--c-border); box-shadow: var(--shadow);
    }
    .story-main img { width: 100%; height: 240px; object-fit: cover; }
    .story-main div, .story-side { padding: 22px; }
    .story-side + .story-side { margin-top: 16px; }
    .role { font-size: 13px; color: var(--c-primary); font-weight: 700; }
    .stats {
      background: #e7e1d6;
      padding: 56px 0;
    }
    .stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
    .stat {
      text-align: left; padding: 12px 8px;
      border-left: 2px solid var(--c-copper);
    }
    .stat b {
      display: block; font-family: var(--mono); font-size: 28px;
      color: var(--c-primary); font-variant-numeric: tabular-nums; letter-spacing: -.03em;
    }
    .stat span { font-size: 13px; color: var(--c-muted); }
    .pricing { background: var(--c-paper); }
    .price-wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px; }
    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .price-card {
      border: 1px solid var(--c-border); background: var(--c-bg); padding: 20px 16px;
      display: flex; flex-direction: column; gap: 8px;
    }
    .price-card.featured {
      background: var(--c-dark); color: #f3efe8; border-color: var(--c-primary);
      transform: translateY(-8px);
    }
    .price-card.featured p, .price-card.featured li { color: #cfc6b8; }
    .price { font-family: var(--mono); font-size: 28px; color: var(--c-accent); }
    .price-card.featured .price { color: #e8c27a; }
    .price-card li { font-size: 14px; color: var(--c-muted); margin: 6px 0; }
    .compare {
      border: 1px solid var(--c-border); background: #fff; overflow: auto;
    }
    .compare table { width: 100%; border-collapse: collapse; font-size: 14px; }
    .compare th, .compare td { padding: 12px 14px; border-bottom: 1px solid var(--c-border); text-align: left; }
    .compare th { background: var(--c-light); }
    .reviews { background: var(--c-bg); }
    .review-wall {
      columns: 3; column-gap: 14px;
    }
    .review {
      break-inside: avoid; margin-bottom: 14px;
      background: var(--c-paper); border: 1px solid var(--c-border);
      padding: 16px; box-shadow: var(--shadow);
    }
    .stars { color: var(--c-accent); letter-spacing: 2px; font-size: 12px; margin-bottom: 8px; }
    .bar { height: 6px; background: #e6e0d6; margin: 10px 0 8px; }
    .bar span { display: block; height: 100%; background: var(--c-primary); }
    .who { font-size: 13px; color: var(--c-copper); font-weight: 700; }
    .reputation { background: var(--c-paper); }
    .logo-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-bottom: 28px; }
    .logo-item {
      min-height: 72px; border: 1px dashed var(--c-line);
      display: grid; place-items: center; text-align: center;
      font-size: 12px; font-weight: 700; color: var(--c-steel);
      background: repeating-linear-gradient(135deg, #fffbf5, #fffbf5 8px, #f3efe8 8px, #f3efe8 16px);
    }
    .logo-item b { display: block; width: 22px; height: 22px; margin: 0 auto 6px; border: 2px solid var(--c-primary); transform: rotate(45deg); }
    .flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 22px; }
    .flow article {
      border: 1px solid var(--c-border); padding: 16px; background: var(--c-bg);
    }
    .flow em { font-family: var(--mono); font-style: normal; color: var(--c-copper); }
    .qual li { padding: 8px 0 8px 18px; position: relative; color: var(--c-muted); border-bottom: 1px solid var(--c-border); }
    .qual li::before { content: ""; width: 8px; height: 8px; border: 1px solid var(--c-primary); position: absolute; left: 0; top: 14px; }
    .news { background: var(--c-bg); }
    .news-list { display: grid; gap: 12px; }
    .news-card {
      display: grid; grid-template-columns: 180px 1fr auto; gap: 16px; align-items: center;
      background: var(--c-paper); border: 1px solid var(--c-border); padding: 10px;
    }
    .news-card img { width: 180px; height: 96px; object-fit: cover; }
    .news-card h3 { font-size: 18px; margin-bottom: 6px; }
    .news-card p { color: var(--c-muted); font-size: 14px; }
    .date { font-family: var(--mono); font-size: 12px; color: var(--c-copper); }
    .faq { background: var(--c-paper); }
    .faq-item { border: 1px solid var(--c-border); margin-bottom: 10px; background: #fff; }
    .faq-item button {
      width: 100%; text-align: left; min-height: 56px;
      background: transparent; border: 0; padding: 14px 48px 14px 16px;
      font-weight: 700; position: relative;
    }
    .faq-item button::after {
      content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
      color: var(--c-copper); font-size: 20px;
    }
    .faq-item.is-open button::after { content: "›"; }
    .faq-item .ans { display: none; padding: 0 16px 16px; color: var(--c-muted); background: var(--c-light); border-top: 1px solid var(--c-border); }
    .faq-item.is-open .ans { display: block; }
    .cta { background: var(--c-dark); color: #f3efe8; }
    .cta-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
    .cta h2 { font-size: 28px; margin-bottom: 12px; }
    .cta p { color: #c9c2b6; }
    .cta-side { margin-top: 18px; font-size: 14px; color: #d7d0c4; }
    .cta-side a { color: #e8c27a; }
    .form {
      background: var(--c-paper); color: var(--c-text);
      padding: 22px; border: 1px solid #2c322f;
    }
    .form-row { margin-bottom: 12px; }
    .form label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
    .form input, .form select, .form textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--c-border);
      background: #fff; padding: 8px 10px; color: var(--c-text);
    }
    .form textarea { min-height: 96px; resize: vertical; }
    .form .is-error { border-color: var(--c-accent); box-shadow: 0 0 0 1px var(--c-accent); }
    .err { display: none; color: var(--c-accent); font-size: 12px; margin-top: 4px; }
    .form-success {
      display: none; padding: 14px; background: var(--c-primary-soft);
      color: var(--c-primary-dark); font-weight: 600; margin-bottom: 12px;
    }
    .form-success.is-show, .err.is-show { display: block; }
    .site-footer { background: var(--c-footer); color: #c9c2b6; padding: 56px 0 24px; font-size: 14px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr .9fr; gap: 28px; margin-bottom: 28px; }
    .site-footer h3 { color: #f3efe8; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #d7d0c4; display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: #e8c27a; }
    .copy { border-top: 1px solid #2a302d; padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }
    .copy a { color: #e8c27a; }
    @media (max-width: 1280px) {
      .hero h1 { font-size: 36px; }
      .stats-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 1024px) {
      .topbar .container { grid-template-columns: 1fr auto; }
      .topbar-trust { display: none; }
      .nav-links, .nav-cta { display: none; }
      .menu-toggle { display: grid; place-items: center; }
      .intro-grid, .modules-layout, .module-panel.is-active, .cap-grid, .sol-grid, .scene-stage, .demo-stage, .philosophy .container, .story-grid, .price-wrap, .price-grid, .cta-grid, .foot-grid, .news-card {
        grid-template-columns: 1fr;
      }
      .case-item, .case-item:nth-child(even) { grid-template-columns: 1fr; }
      .case-item:nth-child(even) .case-pic { order: 0; }
      .module-panel { padding: 0; }
      .acc-head {
        display: block; width: 100%; text-align: left; min-height: 48px;
        background: var(--c-paper); border: 1px solid var(--c-border); font-weight: 700; padding: 0 14px;
      }
      .module-index { display: none; }
      .module-panel .panel-inner { display: none; padding: 16px; }
      .module-panel.is-active .panel-inner { display: grid; gap: 16px; }
      .hero { min-height: 620px; }
      .quote { font-size: 24px; }
      .review-wall { columns: 2; }
      .logo-wall, .flow { grid-template-columns: repeat(2, 1fr); }
      .drawer { display: block; }
    }
    @media (max-width: 768px) {
      main section { padding: var(--space-section-m) 0; }
      .hero-content { padding: 64px 0 72px; }
      .hero h1 { font-size: 30px; }
      .sec-head h2, .cta h2 { font-size: 24px; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .review-wall, .logo-wall { columns: 1; grid-template-columns: 1fr; }
      .price-card.featured { transform: none; }
      .hero-nav { display: none; }
      .news-card img { width: 100%; height: 160px; }
      .copy { flex-direction: column; }
      .frame-pic img, .case-item img, .scene-stage img, .demo-screen img { height: 240px; min-height: 240px; }
    }
    @media (max-width: 520px) {
      .container { width: min(100% - 24px, var(--container)); }
      .hero-actions .btn { width: 100%; }
      .search-box { grid-template-columns: 1fr; }
      .topbar-left { display: none; }
      .chip { font-size: 12px; }
      .flow { grid-template-columns: 1fr; }
    }
    .drawer {
      display: none; position: fixed; inset: 0; z-index: 1200;
      background: rgba(20, 23, 22, .55);
      opacity: 0; visibility: hidden; transition: .2s;
    }
    .drawer.is-open { opacity: 1; visibility: visible; display: block; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; height: 100%;
      width: min(86vw, 360px); background: var(--c-paper);
      padding: 24px 18px; overflow: auto;
      transform: translateX(16px);
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer a {
      display: flex; align-items: center; min-height: 48px;
      border-bottom: 1px solid var(--c-border); color: var(--c-dark); font-weight: 700;
    }
    .drawer .btn { width: 100%; margin-top: 16px; }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important; transition: none !important;
      }
    }