/* roulang page: index */
:root {
      --ink: #1E2F2A;
      --ink-2: #163028;
      --moss: #6FCF6A;
      --moss-dim: #4E9A4A;
      --amber: #D89A1F;
      --amber-deep: #B47C12;
      --paper: #F3F0E8;
      --paper-2: #EBE6DA;
      --card: #FFFDF8;
      --line: #D9D3C7;
      --line-2: #C9C2B4;
      --dark: #141C19;
      --dark-2: #101714;
      --on-dark: #E7EFE8;
      --on-dark-muted: #B7C4BA;
      --text: #24312C;
      --muted: #5C6B64;
      --danger: #B85C1A;
      --radius: 8px;
      --radius-sm: 5px;
      --shadow: 0 8px 24px rgba(30, 47, 42, 0.07);
      --shadow-sm: 0 4px 12px rgba(30, 47, 42, 0.05);
      --container: 1200px;
      --header-h: 108px;
      --ease: 200ms ease;
      --font: "Noto Sans SC", "Source Han Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Noto Sans SC", monospace;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--ink); text-decoration: none; }
    a:hover { color: var(--moss-dim); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; color: var(--ink); letter-spacing: 0.01em; line-height: 1.28; }
    h1 { font-size: 40px; font-weight: 700; }
    h2 { font-size: 26px; font-weight: 700; }
    h3 { font-size: 19px; font-weight: 600; }
    p { margin: 0 0 1em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--moss); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff;
      padding: 8px 12px; z-index: 100; border-radius: var(--radius-sm);
    }
    .skip:focus { left: 8px; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
    .site-header { position: sticky; top: 0; z-index: 80; background: var(--ink); }
    .topbar {
      background: #101714;
      color: var(--on-dark-muted);
      font-size: 13px;
      line-height: 1.4;
      border-bottom: 1px solid rgba(231, 239, 232, 0.08);
    }
    .topbar-inner {
      display: flex; align-items: center; justify-content: space-between;
      min-height: 36px; gap: 16px;
    }
    .topbar-meta { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
    .topbar a { color: var(--on-dark-muted); }
    .topbar a:hover { color: var(--moss); }
    .topbar-link { color: var(--moss) !important; font-weight: 500; }
    .nav-main { background: var(--ink); border-bottom: 1px solid rgba(231, 239, 232, 0.06); }
    .site-header.is-stuck .nav-main { box-shadow: 0 8px 18px rgba(10, 16, 14, 0.28); }
    .nav-inner { display: flex; align-items: center; gap: 20px; min-height: 72px; }
    .brand { display: flex; align-items: center; gap: 10px; color: var(--on-dark); flex-shrink: 0; }
    .brand:hover { color: #fff; }
    .brand-mark {
      width: 36px; height: 36px; border-radius: 4px;
      border: 1px solid rgba(111, 207, 106, 0.45);
      display: grid; place-items: center;
      color: var(--moss); font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
    }
    .brand-name { font-size: 16px; font-weight: 700; line-height: 1.2; }
    .brand-sub { display: block; font-size: 11px; font-weight: 400; color: var(--on-dark-muted); letter-spacing: 0.08em; }
    .menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
    .menu a {
      position: relative; color: var(--on-dark); font-size: 14px; font-weight: 500;
      padding: 10px 10px; white-space: nowrap;
    }
    .menu a:hover { color: #fff; }
    .menu a.is-active { color: #fff; }
    .menu a.is-active::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 4px;
      height: 2px; background: var(--moss);
    }
    .nav-cta { flex-shrink: 0; }
    .nav-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid rgba(231,239,232,.2);
      background: transparent; color: var(--on-dark); border-radius: var(--radius-sm);
      align-items: center; justify-content: center; margin-left: auto;
    }
    .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
      display: block; width: 18px; height: 2px; background: currentColor; position: relative;
    }
    .nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
    .nav-toggle span::before { top: -6px; }
    .nav-toggle span::after { top: 6px; }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(360px, 86vw); background: var(--dark);
      color: var(--on-dark); z-index: 90; transform: translateX(100%);
      transition: transform var(--ease); display: flex; flex-direction: column;
      box-shadow: -12px 0 32px rgba(0,0,0,.28);
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer-mask {
      position: fixed; inset: 0; background: rgba(10, 16, 14, .46); z-index: 85;
      opacity: 0; pointer-events: none; transition: opacity var(--ease);
    }
    .drawer-mask.is-open { opacity: 1; pointer-events: auto; }
    .drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid rgba(231,239,232,.08); }
    .drawer-close {
      width: 44px; height: 44px; border: 1px solid rgba(231,239,232,.2);
      background: transparent; color: var(--on-dark); border-radius: var(--radius-sm);
    }
    .drawer-tools { padding: 16px 20px; font-size: 14px; color: var(--on-dark-muted); border-bottom: 1px solid rgba(231,239,232,.08); display: grid; gap: 10px; }
    .drawer-tools a { color: var(--on-dark); min-height: 44px; display: flex; align-items: center; }
    .drawer-menu { display: flex; flex-direction: column; padding: 8px 12px 24px; }
    .drawer-menu a {
      color: var(--on-dark); min-height: 48px; display: flex; align-items: center;
      padding: 0 12px; border-left: 3px solid transparent; font-weight: 500;
    }
    .drawer-menu a.is-active { border-left-color: var(--moss); background: rgba(111,207,106,.08); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-sm); font-weight: 600;
      font-size: 14px; border: 1px solid transparent; transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
    .nav-cta.btn-primary, .hero .btn-primary, .cta-band .btn-primary {
      background: var(--moss); color: var(--ink); border-color: var(--moss);
    }
    .nav-cta.btn-primary:hover, .hero .btn-primary:hover, .cta-band .btn-primary:hover {
      background: #7ed877; color: #10201a;
    }
    .btn-primary:hover { background: #2a4038; color: #fff; }
    .btn-ghost {
      background: transparent; color: var(--on-dark); border-color: rgba(231,239,232,.35);
    }
    .btn-ghost:hover { border-color: var(--amber); background: var(--amber); color: #1a1408; }
    .btn-line { background: transparent; color: var(--ink); border-color: var(--ink); }
    .btn-line:hover { background: var(--amber); border-color: var(--amber); color: #1a1408; }
    .btn-tiny { min-height: 36px; padding: 0 12px; font-size: 13px; }
    .hero { position: relative; min-height: 640px; color: var(--on-dark); overflow: hidden; }
    .hero-track { position: absolute; inset: 0; }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; transition: opacity 420ms ease;
      background: var(--dark) center/cover no-repeat;
    }
    .hero-slide.is-on { opacity: 1; z-index: 1; }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(16,23,20,.88) 0%, rgba(16,23,20,.68) 42%, rgba(16,23,20,.32) 100%);
    }
    .hero-inner { position: relative; z-index: 2; min-height: 640px; display: flex; align-items: center; padding: 56px 0 72px; }
    .hero-read { max-width: 700px; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500;
      color: var(--moss); letter-spacing: 0.04em; margin-bottom: 14px;
    }
    .kicker::before { content: ""; width: 18px; height: 2px; background: var(--moss); }
    .hero h1 { color: #fff; margin-bottom: 16px; }
    .hero .lead { font-size: 16px; line-height: 1.85; color: var(--on-dark); margin-bottom: 22px; }
    .chip-row, .near-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
    .chip, .near {
      display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px;
      border: 1px solid rgba(231,239,232,.22); border-radius: 4px; font-size: 12px; color: var(--on-dark);
      background: rgba(20,28,25,.35);
    }
    .near { color: #10201a; background: rgba(111,207,106,.9); border-color: transparent; font-weight: 600; }
    .near:hover { color: #10201a; background: #fff; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
    .hero-dots {
      position: absolute; z-index: 3; left: 0; right: 0; bottom: 22px;
    }
    .hero-dots .container { display: flex; gap: 8px; }
    .dot {
      width: 28px; height: 3px; border: 0; padding: 0; background: rgba(231,239,232,.28); border-radius: 1px;
    }
    .dot.is-on { width: 46px; background: var(--moss); }
    .hero-ctrl {
      position: absolute; z-index: 3; top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px; border-radius: 4px; border: 1px solid rgba(231,239,232,.25);
      background: rgba(16,23,20,.45); color: #fff;
    }
    .hero-prev { right: auto; left: 12px; }
    .hero-next { right: 12px; }
    .sec { padding: 88px 0; }
    .sec-head { margin-bottom: 36px; max-width: 760px; }
    .sec-head h2 { margin: 8px 0 14px; }
    .sec-head p { color: var(--muted); line-height: 1.8; }
    .eyebrow { font-size: 13px; font-weight: 600; color: var(--amber-deep); letter-spacing: 0.08em; }
    .pain { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .pain-grid { display: grid; grid-template-columns: 0.38fr 0.62fr; gap: 40px; align-items: start; }
    .pain-list { display: grid; gap: 12px; }
    .pain-item {
      display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 16px 16px;
      border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }
    .pain-item:hover { transform: translateY(-2px); border-color: var(--moss); box-shadow: var(--shadow-sm); }
    .pain-ico {
      width: 44px; height: 44px; border: 1px solid var(--line-2); border-radius: 4px;
      display: grid; place-items: center; color: var(--ink);
    }
    .pain-item h3 { margin-bottom: 4px; }
    .pain-item p { font-size: 14px; color: var(--muted); line-height: 1.7; }
    .overview { background: var(--paper); }
    .overview-grid { display: grid; grid-template-columns: 0.46fr 0.54fr; gap: 48px; align-items: center; }
    .overview-pic { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 420px; }
    .overview-pic img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .overview-copy h2 { margin: 8px 0 16px; }
    .overview-copy p { color: var(--text); line-height: 1.82; margin-bottom: 1.05em; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
    .badge {
      display: inline-flex; align-items: center; min-height: 32px; padding: 0 12px;
      border-radius: 4px; border: 1px solid var(--line); background: var(--card);
      font-size: 13px; font-weight: 600; color: var(--ink);
    }
    .badge em { font-style: normal; color: var(--amber-deep); margin-right: 6px; }
    .caps { background: var(--paper-2); }
    .cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .card {
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
      padding: 22px 20px 20px; box-shadow: var(--shadow-sm);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-top: 2px solid var(--moss); padding-top: 21px; }
    .card h3 { margin-bottom: 8px; }
    .card p, .card li { font-size: 14px; color: var(--muted); line-height: 1.75; }
    .mini-flow { display: flex; gap: 6px; flex-wrap: wrap; margin: 12px 0 10px; }
    .mini-flow span {
      font-size: 12px; color: var(--ink); background: var(--paper); border: 1px solid var(--line);
      border-radius: 4px; padding: 2px 8px; font-weight: 600;
    }
    .metric-inline { font-size: 13px; color: var(--ink); font-weight: 600; margin-top: 10px; }
    .metric-inline b { color: var(--moss-dim); font-size: 18px; margin-right: 4px; }
    .steps { background: var(--card); }
    .step-line { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; }
    .step {
      padding: 20px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
      position: relative;
    }
    .step:hover { border-color: var(--moss); }
    .step-no { font-family: var(--mono); font-size: 12px; color: var(--amber-deep); font-weight: 700; letter-spacing: 0.08em; }
    .step h3 { margin: 8px 0 8px; font-size: 18px; }
    .step p { font-size: 14px; color: var(--muted); }
    .out {
      display: inline-block; margin-top: 12px; font-size: 12px; font-weight: 600;
      color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 3px 8px;
    }
    .modules { background: var(--paper); }
    .mod-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; }
    .mod-stack { display: grid; gap: 16px; }
    .mod {
      display: grid; grid-template-columns: 1fr; overflow: hidden;
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    }
    .mod-lg { min-height: 100%; }
    .mod img { width: 100%; height: 220px; object-fit: cover; }
    .mod-lg img { height: 280px; }
    .mod-body { padding: 20px; }
    .who { font-size: 13px; color: var(--amber-deep); font-weight: 600; margin-bottom: 6px; }
    .mod-body ul { margin: 12px 0 16px; display: grid; gap: 6px; }
    .mod-body li { font-size: 14px; color: var(--muted); padding-left: 14px; position: relative; }
    .mod-body li::before { content: ""; width: 6px; height: 6px; background: var(--moss); position: absolute; left: 0; top: 0.65em; border-radius: 1px; }
    .cases {
      position: relative; color: var(--on-dark);
      background: var(--dark) center/cover no-repeat;
    }
    .cases::before {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(20,28,25,.92), rgba(20,28,25,.78) 46%, rgba(20,28,25,.7));
    }
    .cases .container { position: relative; z-index: 1; }
    .cases h2, .cases p, .cases h3 { color: var(--on-dark); }
    .case-grid { display: grid; grid-template-columns: 0.38fr 0.62fr; gap: 28px; align-items: stretch; }
    .case-quote { font-size: 28px; line-height: 1.4; font-weight: 700; max-width: 18em; }
    .case-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .case-card {
      border: 1px solid rgba(231,239,232,.14); border-radius: var(--radius);
      padding: 20px; background: rgba(16,23,20,.35);
    }
    .case-card p { color: var(--on-dark-muted); font-size: 14px; }
    .tag { display: inline-block; font-size: 12px; color: var(--moss); border: 1px solid rgba(111,207,106,.35); padding: 2px 8px; border-radius: 4px; margin-bottom: 10px; }
    .results { background: var(--ink); color: var(--on-dark); padding: 48px 0; }
    .stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .stat { padding: 8px 8px 8px 16px; border-left: 2px solid var(--moss); }
    .stat b { display: block; font-size: 34px; line-height: 1.1; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; }
    .stat span { display: block; font-size: 13px; color: var(--on-dark-muted); margin-top: 8px; }
    .stories { background: var(--paper); }
    .story-main { display: grid; grid-template-columns: 0.42fr 0.58fr; gap: 40px; align-items: center; margin-bottom: 28px; }
    .story-main img { width: 100%; height: 360px; object-fit: cover; border-radius: var(--radius); }
    .side-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .note { padding: 20px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
    .role { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
    .reviews { background: var(--paper-2); }
    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .review { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
    .review q { display: block; font-style: normal; color: var(--text); margin-bottom: 16px; }
    .review footer { font-size: 13px; color: var(--muted); }
    .audience { background: var(--card); }
    .aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .aud {
      padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
    }
    .aud h3 { margin-bottom: 8px; }
    .aud p { font-size: 14px; color: var(--muted); }
    .cloud { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 12px; }
    .cloud span { font-size: 12px; padding: 2px 8px; background: var(--card); border: 1px solid var(--line); border-radius: 99px; color: var(--ink); }
    .scenes { background: var(--paper); }
    .scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .scene {
      display: grid; grid-template-columns: 160px 1fr; gap: 0; overflow: hidden;
      border: 1px solid var(--line); border-radius: var(--radius); background: var(--card);
    }
    .scene img { width: 160px; height: 100%; object-fit: cover; min-height: 140px; }
    .scene-body { padding: 18px 18px 16px; }
    .scene-body p { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
    .news { background: var(--paper-2); }
    .news-list { display: grid; gap: 12px; }
    .news-item {
      display: grid; grid-template-columns: 160px 1fr auto; gap: 18px; align-items: center;
      background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px;
    }
    .news-item img { width: 160px; height: 96px; object-fit: cover; border-radius: 6px; }
    .news-item time { font-size: 12px; color: var(--amber-deep); font-variant-numeric: tabular-nums; }
    .news-item h3 { font-size: 18px; margin: 4px 0 6px; }
    .news-item p { font-size: 14px; color: var(--muted); }
    .more { font-size: 13px; font-weight: 600; color: var(--ink); white-space: nowrap; }
    .metrics { background: var(--paper); }
    .board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .cluster { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
    .cluster h3 { margin-bottom: 16px; }
    .kv { display: grid; gap: 14px; }
    .kv-row { display: grid; gap: 6px; }
    .kv-top { display: flex; justify-content: space-between; font-size: 14px; }
    .bar { height: 6px; background: var(--paper-2); border-radius: 99px; overflow: hidden; }
    .bar i { display: block; height: 100%; background: var(--moss); border-radius: 99px; }
    .bar.amber i { background: var(--amber); }
    .kv-top b { font-variant-numeric: tabular-nums; color: var(--ink); }
    .faq { background: var(--card); }
    .acc { display: grid; gap: 8px; }
    .acc-item { border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); overflow: hidden; }
    .acc-btn {
      width: 100%; text-align: left; background: transparent; border: 0; min-height: 56px;
      padding: 14px 48px 14px 18px; font-weight: 600; color: var(--ink); position: relative;
    }
    .acc-btn::after {
      content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%);
      font-size: 20px; color: var(--muted);
    }
    .acc-item.is-open .acc-btn::after { content: "−"; color: var(--ink); }
    .acc-panel { display: none; padding: 0 18px 16px; color: var(--muted); font-size: 15px; line-height: 1.8; background: #f7f4ec; }
    .acc-item.is-open .acc-panel { display: block; }
    .cta-band { background: var(--dark-2); color: var(--on-dark); }
    .cta-grid { display: grid; grid-template-columns: 0.46fr 0.54fr; gap: 40px; align-items: start; }
    .cta-band h2 { color: #fff; margin: 8px 0 16px; }
    .cta-band p { color: var(--on-dark-muted); }
    .deliver { display: grid; gap: 10px; margin: 18px 0 22px; }
    .deliver li { padding-left: 18px; position: relative; color: var(--on-dark); }
    .deliver li::before { content: ""; width: 8px; height: 8px; background: var(--moss); position: absolute; left: 0; top: 0.55em; }
    .form {
      background: #1a2420; border: 1px solid rgba(231,239,232,.1); border-radius: var(--radius); padding: 22px;
    }
    .form label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--on-dark); }
    .form-row { margin-bottom: 12px; }
    .form input, .form select, .form textarea {
      width: 100%; min-height: 44px; border-radius: var(--radius-sm);
      border: 1px solid rgba(217,211,199,.35); background: #121a17; color: #fff;
      padding: 8px 12px;
    }
    .form textarea { min-height: 96px; resize: vertical; }
    .form input:focus, .form select:focus, .form textarea:focus {
      border-color: var(--moss); outline: none;
    }
    .form .is-err { border-color: var(--amber); }
    .form-msg { margin-bottom: 12px; font-size: 14px; }
    .form-msg.ok { color: var(--moss); }
    .form-msg.bad { color: #f0c36a; }
    .form-side { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; font-size: 13px; color: var(--on-dark-muted); }
    .form-side a { color: var(--moss); }
    .site-footer { background: #0d1311; color: var(--on-dark-muted); padding: 56px 0 24px; font-size: 14px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 0.9fr 1fr 0.9fr; gap: 28px; margin-bottom: 36px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 14px; }
    .site-footer a { color: var(--on-dark-muted); }
    .site-footer a:hover { color: var(--moss); }
    .foot-brand .brand { margin-bottom: 12px; }
    .foot-map, .foot-trust { display: grid; gap: 8px; }
    .copy { border-top: 1px solid rgba(231,239,232,.08); padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }
    @media (max-width: 1440px) {
      h1 { font-size: 38px; }
    }
    @media (max-width: 1024px) {
      h1 { font-size: 34px; }
      .menu a { padding: 10px 7px; font-size: 13px; }
      .pain-grid, .overview-grid, .case-grid, .story-main, .cta-grid, .mod-grid { grid-template-columns: 1fr; }
      .cap-grid, .review-grid, .aud-grid, .board { grid-template-columns: 1fr 1fr; }
      .step-line { grid-template-columns: 1fr 1fr; }
      .overview-pic, .overview-pic img { min-height: 280px; }
      .hero, .hero-inner { min-height: 580px; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .sec { padding: 64px 0; }
      .topbar { display: none; }
      .menu, .nav-cta { display: none; }
      .nav-toggle { display: inline-flex; }
      h1 { font-size: 30px; }
      h2 { font-size: 24px; }
      .hero, .hero-inner { min-height: 0; }
      .hero-inner { padding: 40px 0 64px; }
      .hero-ctrl { display: none; }
      .stat-row, .cap-grid, .review-grid, .aud-grid, .board, .scene-grid, .side-notes, .case-cards { grid-template-columns: 1fr; }
      .step-line { grid-template-columns: 1fr; }
      .news-item { grid-template-columns: 1fr; }
      .news-item img { width: 100%; height: 160px; }
      .scene { grid-template-columns: 1fr; }
      .scene img { width: 100%; height: 140px; }
      .foot-grid { grid-template-columns: 1fr; }
      .story-main img { height: 220px; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 28px; }
      .sec { padding: 52px 0; }
      .hero-actions { flex-direction: column; }
      .hero-actions .btn { width: 100%; }
      .stat b { font-size: 28px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

/* roulang page: index */
:root {
      --ink: #1E2F2A;
      --moss: #6FCF6A;
      --amber: #D89A1F;
      --paper: #F3F0E8;
      --card: #FFFDF8;
      --line: #D9D3C7;
      --dark: #141C19;
      --dark-2: #1A2420;
      --text: #24312C;
      --muted: #5C6B64;
      --pale: #E7EFE8;
      --white: #FFFdf8;
      --shadow: 0 8px 24px rgba(30, 47, 42, 0.07);
      --radius: 8px;
      --radius-sm: 5px;
      --container: 1200px;
      --nav-h: 72px;
      --top-h: 38px;
      --ease: 0.2s ease;
      --mono: "JetBrains Mono", "Noto Sans SC", ui-monospace, monospace;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
    }
    body.nav-lock { overflow: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--ink); text-decoration: none; transition: color var(--ease), border-color var(--ease); }
    a:hover { color: #163028; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; color: var(--ink); letter-spacing: 0.01em; line-height: 1.28; }
    h1 { font-size: 40px; font-weight: 700; }
    h2 { font-size: 26px; font-weight: 700; }
    h3 { font-size: 19px; font-weight: 600; }
    p { margin: 0 0 1em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--moss); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--card); padding: 8px 12px; }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }

    /* Header */
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: var(--ink);
      box-shadow: 0 1px 0 rgba(255,255,255,0.04);
    }
    .topbar {
      background: #141C19;
      color: #C9D6CC;
      font-size: 13px;
      min-height: var(--top-h);
      display: flex; align-items: center;
    }
    .topbar .container {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      width: min(var(--container), calc(100% - 32px));
    }
    .topbar-left { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; }
    .topbar a { color: #C9D6CC; }
    .topbar a:hover { color: var(--moss); }
    .topbar-demo {
      color: var(--amber) !important;
      border-bottom: 1px solid rgba(216,154,31,0.5);
      padding-bottom: 1px;
    }
    .mainbar {
      background: var(--ink);
      min-height: var(--nav-h);
      display: flex; align-items: center;
    }
    .mainbar .container {
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
      width: min(var(--container), calc(100% - 32px));
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      color: var(--pale); flex-shrink: 0;
    }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 4px;
      border: 1px solid rgba(111,207,106,0.55);
      display: grid; place-items: center;
      font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--moss);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; font-weight: 700; color: #F4F7F4; }
    .logo-text span { font-size: 11px; color: #9AAEA3; letter-spacing: 0.08em; }
    .nav-list { display: flex; align-items: center; gap: 4px; }
    .nav-list a {
      color: #D5E0D8; font-size: 14px; padding: 10px 10px 8px;
      position: relative; display: inline-flex; align-items: center; min-height: 44px;
    }
    .nav-list a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 6px;
      height: 2px; background: transparent; transition: background var(--ease);
    }
    .nav-list a:hover { color: #fff; }
    .nav-list a.is-active { color: #fff; }
    .nav-list a.is-active::after { background: var(--moss); }
    .header-cta { display: flex; align-items: center; gap: 10px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-sm);
      font-size: 14px; font-weight: 600; border: 1px solid transparent;
      transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
    .btn-primary:hover { background: #162621; color: #fff; box-shadow: 0 0 0 1px rgba(111,207,106,0.5); }
    .btn-ghost {
      background: transparent; color: var(--pale); border-color: rgba(231,239,232,0.28);
    }
    .btn-ghost:hover { border-color: var(--amber); color: #fff; background: rgba(216,154,31,0.12); }
    .btn-solid {
      background: var(--moss); color: #102019; border-color: var(--moss);
    }
    .btn-solid:hover { background: #7fda79; color: #102019; }
    .btn-line {
      background: transparent; color: var(--ink); border-color: var(--ink);
    }
    .btn-line:hover { background: var(--amber); border-color: var(--amber); color: #1a1406; }
    .btn-on-dark { background: var(--moss); color: #102019; }
    .btn-on-dark:hover { background: #86e080; color: #102019; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border-radius: 4px;
      background: transparent; border: 1px solid rgba(231,239,232,0.2); color: #fff;
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { display: block; width: 18px; height: 1.5px; background: #fff; }
    .drawer {
      display: none; position: fixed; inset: 0; z-index: 60;
      background: rgba(20,28,25,0.45);
    }
    .drawer.is-open { display: block; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; bottom: 0; width: min(86vw, 360px);
      background: #18221E; color: var(--pale); padding: 22px 20px 32px;
      overflow: auto;
    }
    .drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
    .drawer-close {
      width: 44px; height: 44px; border: 1px solid rgba(231,239,232,0.2);
      background: transparent; color: #fff; border-radius: 4px; font-size: 22px;
    }
    .drawer-tools { font-size: 13px; color: #B7C6BB; display: grid; gap: 8px; padding-bottom: 16px; border-bottom: 1px solid rgba(217,211,199,0.15); margin-bottom: 12px; }
    .drawer-tools a { color: #D5E0D8; min-height: 44px; display: flex; align-items: center; }
    .drawer-nav a {
      display: flex; align-items: center; min-height: 48px; color: #E7EFE8;
      border-left: 2px solid transparent; padding-left: 12px; font-size: 16px;
    }
    .drawer-nav a.is-active { border-left-color: var(--moss); color: #fff; }

    /* Hero */
    #hero { position: relative; background: var(--dark); color: var(--pale); overflow: hidden; }
    .hero-track { position: relative; min-height: 640px; }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity 0.45s ease, visibility 0.45s ease;
      background: #101714 center/cover no-repeat;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; position: relative; }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(16,23,20,0.86) 0%, rgba(16,23,20,0.62) 46%, rgba(16,23,20,0.28) 100%);
    }
    .hero-copy {
      position: relative; z-index: 2; max-width: 680px; padding: 88px 0 92px;
    }
    .region-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
    .chip {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid rgba(111,207,106,0.35); color: var(--moss);
      font-size: 12px; letter-spacing: 0.06em; padding: 4px 10px; border-radius: 4px;
      background: rgba(30,47,42,0.35);
    }
    .chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--moss); display: inline-block; }
    .kicker { color: var(--amber); font-size: 13px; letter-spacing: 0.12em; margin-bottom: 12px; font-weight: 500; }
    #hero h1 { color: #F5F8F5; margin-bottom: 18px; }
    .lead { font-size: 16px; line-height: 1.85; color: #D4DED6; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
    .near-links { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 13px; }
    .near-links a { color: #C5D3C9; border-bottom: 1px solid rgba(111,207,106,0.4); padding-bottom: 1px; }
    .near-links a:hover { color: var(--moss); }
    .hero-ctrl {
      position: absolute; left: 0; right: 0; bottom: 22px; z-index: 3;
    }
    .hero-ctrl .container { display: flex; align-items: center; gap: 16px; }
    .hero-lines { display: flex; gap: 8px; flex: 1; }
    .hero-lines button {
      flex: 1; max-width: 88px; height: 3px; padding: 12px 0; background: transparent; border: 0;
      position: relative;
    }
    .hero-lines button::before {
      content: ""; position: absolute; left: 0; right: 0; top: 12px; height: 2px;
      background: rgba(231,239,232,0.28);
    }
    .hero-lines button.is-active::before { background: var(--moss); }
    .slide-index { font-family: var(--mono); font-size: 12px; color: #A8B8AE; }

    /* Sections common */
    main section { padding: 88px 0; }
    .sec-head { max-width: 720px; margin-bottom: 36px; }
    .sec-head h2 { margin-bottom: 14px; }
    .sec-head p { color: var(--muted); line-height: 1.8; }
    .eyebrow {
      display: inline-block; font-size: 12px; letter-spacing: 0.14em; color: var(--amber);
      margin-bottom: 10px; font-weight: 600;
    }

    /* Pain */
    #pain { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .pain-grid {
      display: grid; grid-template-columns: 0.42fr 0.58fr; gap: 48px; align-items: start;
    }
    .pain-quote {
      border-left: 3px solid var(--ink); padding-left: 18px;
    }
    .pain-quote h2 { margin: 8px 0 14px; }
    .pain-list { display: grid; gap: 14px; }
    .pain-item {
      display: grid; grid-template-columns: 44px 1fr; gap: 14px;
      padding: 16px 16px 16px 12px; border: 1px solid var(--line); border-radius: var(--radius);
      background: var(--paper);
    }
    .pain-ico {
      width: 44px; height: 44px; border: 1px solid var(--ink); border-radius: 4px;
      display: grid; place-items: center; color: var(--ink);
    }
    .pain-item h3 { margin-bottom: 4px; }
    .pain-item p { color: var(--muted); font-size: 14px; line-height: 1.7; }
    .cost { color: var(--amber); font-size: 12px; font-weight: 600; margin-top: 6px; }

    /* Overview */
    #overview { background: var(--paper); }
    .overview-grid {
      display: grid; grid-template-columns: 0.46fr 0.54fr; gap: 48px; align-items: center;
    }
    .media-frame {
      position: relative; border-radius: 10px; overflow: hidden; border: 1px solid var(--line);
      min-height: 420px;
    }
    .media-frame img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .media-cap {
      position: absolute; left: 12px; bottom: 12px; background: rgba(20,28,25,0.82);
      color: #E7EFE8; font-size: 12px; padding: 8px 10px; border-radius: 4px;
    }
    .badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
    .badge {
      font-size: 12px; padding: 6px 10px; border-radius: 4px;
      background: #E8EFE6; color: var(--ink); border: 1px solid #C9D7C6;
    }
    .spec-list { display: grid; gap: 8px; margin: 16px 0 22px; }
    .spec-list li {
      display: grid; grid-template-columns: 92px 1fr; gap: 10px; font-size: 14px;
      padding: 8px 0; border-bottom: 1px dashed var(--line);
    }
    .spec-list b { color: var(--ink); font-weight: 600; }
    .spec-list span { color: var(--muted); }

    /* Capabilities */
    #capabilities { background: #EBE7DC; }
    .cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .cap-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 10px;
      padding: 22px 20px 20px; min-height: 220px;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }
    .cap-card:hover {
      transform: translateY(-3px); border-top: 2px solid var(--moss); box-shadow: var(--shadow);
    }
    .cap-idx { font-family: var(--mono); font-size: 12px; color: var(--amber); margin-bottom: 8px; }
    .cap-card h3 { margin-bottom: 8px; }
    .cap-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
    .flow {
      display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; font-size: 12px;
    }
    .flow span {
      background: var(--ink); color: #E7EFE8; padding: 3px 8px; border-radius: 3px;
    }
    .mini-metric {
      margin-top: 12px; font-family: var(--mono); font-size: 13px; color: var(--ink);
    }

    /* Steps */
    #steps { background: var(--card); }
    .timeline {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 6%; right: 6%; top: 22px; height: 2px; background: var(--line);
    }
    .step {
      padding: 0 12px; position: relative;
    }
    .step-no {
      width: 44px; height: 44px; border-radius: 4px; background: var(--ink); color: #fff;
      display: grid; place-items: center; font-family: var(--mono); font-size: 13px; margin-bottom: 16px;
      position: relative; z-index: 1;
    }
    .step h3 { margin-bottom: 8px; font-size: 18px; }
    .step p { color: var(--muted); font-size: 14px; line-height: 1.7; }
    .output {
      margin-top: 10px; font-size: 13px; color: var(--ink); font-weight: 600;
      border-top: 1px solid var(--line); padding-top: 8px;
    }

    /* Modules */
    #modules { background: var(--paper); }
    .mod-layout {
      display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 18px;
    }
    .mod-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
      display: grid;
    }
    .mod-card img { width: 100%; height: 220px; object-fit: cover; }
    .mod-big img { height: 280px; }
    .mod-body { padding: 20px; }
    .who { font-size: 13px; color: var(--amber); margin-bottom: 8px; }
    .mod-body h3 { margin-bottom: 10px; }
    .mod-body ul { margin: 10px 0 16px; }
    .mod-body li {
      position: relative; padding-left: 14px; font-size: 14px; color: var(--muted); margin-bottom: 6px;
    }
    .mod-body li::before {
      content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 1.5px; background: var(--ink);
    }
    .stack { display: grid; gap: 18px; }
    .mod-side { grid-template-columns: 140px 1fr; }
    .mod-side img { height: 100%; min-height: 168px; }

    /* Cases */
    #cases {
      background: var(--dark) center/cover no-repeat; color: var(--pale); position: relative;
    }
    #cases::before {
      content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,28,25,0.92), rgba(30,47,42,0.78));
    }
    #cases .container { position: relative; z-index: 1; }
    #cases h2, #cases h3 { color: #F2F7F3; }
    .cases-grid { display: grid; grid-template-columns: 0.38fr 0.62fr; gap: 36px; align-items: stretch; }
    .idea { font-size: 28px; line-height: 1.4; font-weight: 700; }
    .idea span { display: block; font-size: 15px; font-weight: 400; color: #C5D3C9; margin-top: 16px; line-height: 1.8; }
    .case-slice {
      display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
    }
    .case-card {
      border: 1px solid rgba(231,239,232,0.16); padding: 20px; border-radius: 8px;
      background: rgba(20,28,25,0.35);
    }
    .case-card p { color: #C9D6CC; font-size: 14px; }
    .tag { display: inline-block; font-size: 12px; color: var(--moss); margin-bottom: 8px; }

    /* Results */
    #results { background: var(--ink); color: var(--pale); padding: 56px 0; }
    .stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .stat { border-left: 2px solid var(--moss); padding: 6px 0 6px 16px; }
    .stat b { display: block; font-size: 34px; color: #fff; line-height: 1.1; margin-bottom: 8px; }
    .stat span { display: block; color: #C5D3C9; font-size: 13px; line-height: 1.7; }

    /* Stories */
    #stories { background: var(--paper); }
    .story-main {
      display: grid; grid-template-columns: 0.42fr 0.58fr; gap: 36px; margin-bottom: 28px; align-items: center;
    }
    .story-main img { width: 100%; height: 340px; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); }
    .role { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
    .side-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .note {
      background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 20px;
    }
    .note h3 { margin-bottom: 8px; }

    /* Reviews */
    #reviews { background: var(--card); }
    .rev-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .rev {
      border: 1px solid var(--line); background: #FFFEFB; border-radius: 8px; padding: 18px 16px;
      min-height: 210px;
    }
    .rev q { display: block; font-style: normal; color: var(--text); font-size: 14px; line-height: 1.75; }
    .rev footer { margin-top: 16px; font-size: 13px; color: var(--muted); }

    /* Audience */
    #audience { background: #EBE7DC; }
    .aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .aud {
      background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 18px;
    }
    .aud h3 { margin-bottom: 8px; }
    .cloud { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 12px; }
    .cloud span {
      font-size: 12px; background: var(--paper); border: 1px solid var(--line); padding: 3px 8px; border-radius: 3px;
    }
    .aud p { font-size: 14px; color: var(--muted); }

    /* Scenes */
    #scenes { background: var(--paper); }
    .scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .scene {
      display: grid; grid-template-columns: 160px 1fr; gap: 0; background: var(--card);
      border: 1px solid var(--line); border-radius: 10px; overflow: hidden; min-height: 170px;
    }
    .scene img { width: 100%; height: 100%; object-fit: cover; }
    .scene div { padding: 18px 18px 16px; }
    .scene a { color: var(--ink); font-size: 13px; font-weight: 600; border-bottom: 1px solid var(--moss); }

    /* News */
    #news { background: var(--card); }
    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .news {
      border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #FFFEFB;
      transition: transform var(--ease), border-color var(--ease);
    }
    .news:hover { transform: translateY(-2px); border-top: 2px solid var(--moss); }
    .news img { height: 140px; width: 100%; object-fit: cover; }
    .news-body { padding: 14px; }
    .date { font-family: var(--mono); font-size: 12px; color: var(--amber); }
    .news h3 { font-size: 16px; margin: 6px 0 8px; }
    .news p { font-size: 13px; color: var(--muted); line-height: 1.7; }

    /* Metrics */
    #metrics { background: var(--paper); }
    .board {
      background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 28px;
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    }
    .cluster h3 { margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
    .metric { margin-bottom: 14px; }
    .metric b { display: block; font-size: 14px; }
    .metric small { color: var(--muted); font-size: 13px; }
    .bar { height: 6px; background: #E6E0D4; border-radius: 3px; margin-top: 6px; overflow: hidden; }
    .bar i { display: block; height: 100%; background: var(--ink); }
    .bar i.moss { background: var(--moss); }
    .bar i.amber { background: var(--amber); }

    /* FAQ */
    #faq { background: var(--card); }
    .faq-list { max-width: 880px; }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item button {
      width: 100%; text-align: left; background: transparent; border: 0;
      min-height: 56px; padding: 14px 40px 14px 0; font-size: 16px; font-weight: 600; color: var(--ink);
      position: relative;
    }
    .faq-item button::after {
      content: "+"; position: absolute; right: 0; top: 14px; font-size: 20px; color: var(--muted);
    }
    .faq-item.is-open button::after { content: "–"; color: var(--ink); }
    .faq-panel {
      display: none; padding: 0 8px 16px 0; color: var(--muted); font-size: 15px; line-height: 1.8;
      background: #F7F4EC;
    }
    .faq-item.is-open .faq-panel { display: block; padding: 4px 12px 16px; }

    /* CTA */
    #cta { background: var(--dark-2); color: var(--pale); }
    .cta-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 40px; align-items: start; }
    #cta h2 { color: #F2F7F3; margin-bottom: 14px; }
    .deliver { margin: 16px 0 20px; }
    .deliver li { padding-left: 16px; position: relative; margin-bottom: 8px; color: #C9D6CC; }
    .deliver li::before { content: ""; width: 7px; height: 7px; background: var(--moss); position: absolute; left: 0; top: 0.65em; }
    .contact-repeat a { color: var(--moss); }
    .form {
      background: #1B2622; border: 1px solid rgba(231,239,232,0.12); border-radius: 10px; padding: 22px;
    }
    .form-row { margin-bottom: 12px; }
    label { display: block; font-size: 13px; margin-bottom: 6px; color: #D5E0D8; }
    input, select, textarea {
      width: 100%; min-height: 44px; border-radius: 5px; border: 1px solid #3A4842;
      background: #121A17; color: #E7EFE8; padding: 8px 12px; font-size: 15px;
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--moss); }
    .is-error { border-color: var(--amber) !important; }
    .err { color: var(--amber); font-size: 12px; min-height: 16px; margin-top: 4px; }
    .form-ok { display: none; background: rgba(111,207,106,0.12); color: var(--moss); padding: 12px; border-radius: 6px; margin-top: 10px; }
    .form-ok.show { display: block; }

    /* Footer */
    .site-footer { background: #101714; color: #B7C6BB; padding: 48px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; gap: 28px; margin-bottom: 28px; }
    .site-footer h3 { color: #E7EFE8; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C5D3C9; display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: var(--moss); }
    .copy { border-top: 1px solid rgba(217,211,199,0.12); padding-top: 16px; font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

    @media (max-width: 1440px) {
      h1 { font-size: 38px; }
    }
    @media (max-width: 1024px) {
      h1 { font-size: 34px; }
      .nav-list { display: none; }
      .header-cta .btn-ghost { display: none; }
      .menu-toggle { display: inline-flex; }
      .pain-grid, .overview-grid, .mod-layout, .cases-grid, .story-main, .cta-grid {
        grid-template-columns: 1fr; gap: 24px;
      }
      .cap-grid, .aud-grid, .news-grid, .rev-grid { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr; gap: 18px; }
      .timeline::before { display: none; }
      .mod-side { grid-template-columns: 1fr; }
      .mod-side img, .mod-card img, .mod-big img { height: 200px; min-height: 0; }
      .board { grid-template-columns: 1fr; }
      .stat-row { grid-template-columns: 1fr 1fr; gap: 20px; }
      .scene { grid-template-columns: 140px 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      main section { padding: 72px 0; }
    }
    @media (max-width: 768px) {
      h1 { font-size: 30px; }
      h2 { font-size: 24px; }
      .topbar { display: none; }
      .hero-copy { padding: 56px 0 80px; }
      .hero-track { min-height: 560px; }
      .cap-grid, .aud-grid, .news-grid, .rev-grid, .stat-row, .side-notes, .case-slice, .scene-grid {
        grid-template-columns: 1fr;
      }
      .scene { grid-template-columns: 1fr; }
      .scene img { height: 160px; }
      .media-frame, .media-frame img { min-height: 240px; }
      .foot-grid { grid-template-columns: 1fr; }
      main section { padding: 56px 0; }
    }
    @media (max-width: 375px) {
      .container { width: calc(100% - 28px); }
      h1 { font-size: 26px; }
      .btn { width: 100%; }
      .hero-actions { flex-direction: column; }
      .logo-text strong { font-size: 14px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }