/* roulang page: index */
:root {
      --graphite: #161616;
      --pine: #1F6F5B;
      --pine-deep: #165445;
      --copper: #B87333;
      --copper-soft: #d7a36a;
      --lithium: #8A9096;
      --paper: #F3EFE6;
      --ash: #E8E4DA;
      --line: #E6E1D6;
      --white: #FBF8F2;
      --ink: #1A1A1A;
      --muted: #5E646A;
      --danger: #8B2E2E;
      --ok: #1F6F5B;
      --radius: 6px;
      --radius-sm: 4px;
      --shadow: 0 10px 28px rgba(22, 22, 22, .06);
      --shadow-sm: 0 2px 8px rgba(22, 22, 22, .04);
      --top-h: 38px;
      --nav-h: 74px;
      --max: 1240px;
      --font-serif: "Noto Serif SC", "Songti SC", serif;
      --font-sans: "Noto Sans SC", "Source Han Sans SC", sans-serif;
      --font-num: "DIN Alternate", Bahnschrift, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      --ease: cubic-bezier(.22, .61, .36, 1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font-sans);
      color: var(--ink);
      background: var(--paper);
      line-height: 1.7;
      font-size: 16px;
      letter-spacing: .01em;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; border: 0; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; letter-spacing: -.04em; line-height: 1.18; color: var(--graphite); margin: 0; }
    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(--copper); outline-offset: 3px; }
    .container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
    .num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: -.03em; }
    .hairline { height: 1px; background: var(--line); border: 0; }

    .site-header { position: relative; z-index: 80; }
    .topbar {
      height: var(--top-h);
      background: var(--graphite);
      color: #d7d2c8;
      font-size: 12px;
      letter-spacing: .06em;
    }
    .topbar .container {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .topbar a { color: #f3efe6; }
    .topbar a:hover { color: var(--copper-soft); }
    .top-meta, .top-actions { display: flex; align-items: center; gap: 18px; min-height: 44px; }
    .top-meta span { white-space: nowrap; }
    .cert-pills { display: flex; gap: 8px; }
    .pill {
      display: inline-flex; align-items: center; height: 22px;
      padding: 0 8px; border: 1px solid rgba(184, 115, 51, .45);
      color: var(--copper-soft); font-size: 11px; letter-spacing: .08em;
    }
    .top-inquire {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 28px; padding: 0 12px;
      background: var(--pine); color: #fbf8f2 !important;
      letter-spacing: .08em;
    }
    .top-inquire:hover { background: var(--pine-deep); }

    .nav-wrap {
      position: sticky; top: 0; z-index: 90;
      background: rgba(243, 239, 230, .94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid transparent;
      transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
    }
    .nav-wrap.is-scrolled {
      border-bottom-color: var(--line);
      box-shadow: 0 8px 18px rgba(22, 22, 22, .04);
    }
    .mainnav {
      height: var(--nav-h);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 24px;
    }
    .logo {
      display: flex; flex-direction: column; gap: 0; line-height: 1.05;
      min-height: 44px; justify-content: center;
    }
    .logo-mark {
      font-family: var(--font-serif); font-size: 22px; font-weight: 700;
      letter-spacing: -.04em; color: var(--graphite);
    }
    .logo-sub {
      font-size: 11px; letter-spacing: .22em; color: var(--pine);
      text-transform: none; margin-top: 4px;
    }
    .nav-links { display: flex; justify-content: center; gap: 4px; }
    .nav-links a {
      position: relative; display: inline-flex; align-items: center;
      min-height: 44px; padding: 0 12px; font-size: 14px; color: var(--muted);
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 10px;
      height: 1px; background: var(--copper); transform: scaleX(0);
      transform-origin: left; transition: transform .35s var(--ease);
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--graphite); }
    .nav-links a.is-active::after, .nav-links a:hover::after { transform: scaleX(1); }
    .nav-cta {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px; background: var(--graphite); color: var(--paper);
      font-size: 14px; letter-spacing: .04em;
    }
    .nav-cta:hover { background: var(--pine); }
    .nav-cta:active { background: var(--pine-deep); }
    .menu-toggle {
      display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
      flex-direction: column; gap: 6px;
    }
    .menu-toggle span { display: block; width: 20px; height: 1px; background: var(--graphite); transition: .25s var(--ease); }
    .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
    .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .drawer {
      position: fixed; inset: 0; z-index: 100; pointer-events: none;
    }
    .drawer-mask { position: absolute; inset: 0; background: rgba(22, 22, 22, .35); opacity: 0; transition: opacity .3s; }
    .drawer-panel {
      position: absolute; top: 0; right: 0; width: min(88vw, 380px); height: 100%;
      background: var(--white); transform: translateX(100%); transition: transform .35s var(--ease);
      display: flex; flex-direction: column; padding: 28px 24px 32px;
    }
    .drawer.is-open { pointer-events: auto; }
    .drawer.is-open .drawer-mask { opacity: 1; }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer-links { display: flex; flex-direction: column; gap: 4px; margin-top: 28px; }
    .drawer-links a {
      display: flex; align-items: center; min-height: 52px;
      font-family: var(--font-serif); font-size: 28px; border-bottom: 1px solid var(--line);
    }
    .drawer-foot { margin-top: auto; color: var(--muted); font-size: 14px; }
    .drawer-foot a { display: inline-flex; min-height: 44px; align-items: center; color: var(--pine); }

    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 48px; padding: 0 22px; font-size: 14px; letter-spacing: .06em;
      transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
    }
    .btn-primary { background: var(--graphite); color: var(--paper); }
    .btn-primary:hover { background: var(--pine); }
    .btn-primary:active { background: var(--pine-deep); }
    .btn-ghost { background: transparent; color: var(--paper); border: 1px solid var(--copper); }
    .btn-ghost:hover { background: var(--copper); color: var(--graphite); }
    .btn-line { background: transparent; color: var(--graphite); border: 1px solid var(--graphite); }
    .btn-line:hover { background: var(--graphite); color: var(--paper); }
    .btn-full { width: 100%; }

    .badge {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 12px; letter-spacing: .18em; color: var(--copper); margin-bottom: 14px;
    }
    .badge i { width: 18px; height: 1px; background: var(--copper); display: inline-block; }

    .hero { position: relative; isolation: isolate; background: var(--graphite); color: var(--paper); }
    .hero-viewport { position: relative; overflow: hidden; aspect-ratio: 16/9; min-height: 560px; }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity .9s var(--ease), visibility .9s;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover; object-position: center 40%;
      transform: scale(1); animation: kenburns 18s linear forwards;
    }
    .hero-slide.is-active img { animation-name: kenburns; }
    @keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.06); } }
    .hero-veil {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(22,22,22,.78) 0%, rgba(22,22,22,.42) 46%, rgba(22,22,22,.18) 100%);
    }
    .hero-copy {
      position: absolute; inset: 0; z-index: 2;
      display: flex; align-items: center;
    }
    .hero-copy .container { width: min(var(--max), calc(100% - 48px)); }
    .hero-kicker { font-size: 13px; letter-spacing: .22em; color: var(--copper-soft); margin-bottom: 18px; }
    .hero h1, .hero .slide-title {
      font-size: clamp(36px, 5.4vw, 72px); color: var(--paper);
      max-width: 16ch; margin-bottom: 18px; letter-spacing: -.05em;
    }
    .hero-lead {
      max-width: 42em; font-size: 16px; line-height: 1.85; color: #d8d3c8;
      margin-bottom: 28px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-controls {
      position: absolute; z-index: 3; left: 0; right: 0; bottom: 28px;
    }
    .hero-controls .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .hero-arrows { display: flex; gap: 8px; }
    .icon-btn {
      width: 44px; height: 44px; display: grid; place-items: center;
      border: 1px solid rgba(243,239,230,.35); color: var(--paper);
    }
    .icon-btn:hover { border-color: var(--copper); color: var(--copper-soft); }
    .icon-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.4; }
    .hero-dots { display: flex; gap: 10px; align-items: center; }
    .hero-dots button {
      width: 28px; height: 44px; display: grid; place-items: center;
    }
    .hero-dots button span {
      display: block; width: 18px; height: 1px; background: rgba(243,239,230,.35);
      transition: background .25s, width .25s;
    }
    .hero-dots button.is-active span { width: 32px; background: var(--copper); }
    .window-bar {
      background: #111; color: #cfc9bd; border-top: 1px solid rgba(184,115,51,.35);
      font-size: 13px;
    }
    .window-bar .container {
      display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center;
      min-height: 56px;
    }
    .window-bar b { color: var(--paper); font-weight: 500; }
    .window-metrics { display: flex; gap: 28px; justify-content: flex-end; }
    .window-metrics span { color: var(--copper-soft); font-family: var(--font-num); }

    .section { padding: 96px 0; }
    .section-ash { background: var(--ash); }
    .section-white { background: var(--white); }
    .section-paper { background: var(--paper); }
    .section-head { max-width: 720px; margin-bottom: 48px; }
    .section-head h2 { font-size: clamp(28px, 3.4vw, 44px); margin-bottom: 16px; }
    .section-head p, .lead { color: var(--muted); font-size: 16px; line-height: 1.9; }

    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
    .media { position: relative; overflow: hidden; border-radius: var(--radius-sm); background: var(--ash); }
    .media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .media:hover img { transform: scale(1.04); }
    .ratio-4x5 { aspect-ratio: 4/5; }
    .ratio-16x10 { aspect-ratio: 16/10; }
    .ratio-3x2 { aspect-ratio: 3/2; }
    .ratio-1x1 { aspect-ratio: 1/1; }
    .spec-list { margin-top: 24px; display: grid; gap: 12px; }
    .spec-list li {
      display: grid; grid-template-columns: 96px 1fr; gap: 12px;
      padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px;
    }
    .spec-list strong { font-weight: 500; color: var(--pine); }

    .bento {
      display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: auto auto;
      gap: 16px;
    }
    .bento-card {
      background: var(--white); padding: 0; overflow: hidden;
      border: 1px solid transparent; transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
    }
    .bento-card:hover { border-color: var(--copper); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
    .bento-card:hover img { transform: scale(1.04); }
    .bento-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .bento-card .txt { padding: 22px 22px 24px; }
    .bento-card h3 { font-size: 22px; margin-bottom: 8px; }
    .bento-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
    .bento-card.lg { grid-row: span 2; }
    .bento-card.lg .pic { aspect-ratio: 4/3; overflow: hidden; }
    .bento-card.sm { display: grid; grid-template-columns: 118px 1fr; min-height: 148px; }
    .bento-card.sm .pic { height: 100%; overflow: hidden; }

    .product-stage { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .side-stack { display: grid; gap: 16px; }
    .product-card {
      background: var(--paper); border: 1px solid var(--line); overflow: hidden;
      transition: border-color .3s, transform .3s var(--ease);
    }
    .product-card:hover { border-color: var(--copper); transform: translateY(-3px); }
    .product-card:hover img { transform: scale(1.04); }
    .product-card .pic { overflow: hidden; aspect-ratio: 16/10; }
    .product-card.feature .pic { aspect-ratio: 16/9; }
    .product-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .product-body { padding: 22px; }
    .product-body h3 { font-size: 24px; margin-bottom: 8px; }
    .product-body p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
    .spec-bar {
      display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 18px;
      font-family: var(--font-num); font-size: 13px; color: var(--graphite);
    }
    .spec-bar span { color: var(--lithium); }
    .link-arrow { display: inline-flex; align-items: center; min-height: 44px; color: var(--pine); font-size: 14px; letter-spacing: .06em; }
    .link-arrow:hover { color: var(--copper); }

    .scene-track { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .scene-card { position: relative; min-height: 360px; overflow: hidden; color: var(--paper); }
    .scene-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .scene-card:hover img { transform: scale(1.04); }
    .scene-card .shade {
      position: absolute; inset: 0;
      background: linear-gradient(180deg, rgba(22,22,22,.1) 0%, rgba(22,22,22,.78) 70%);
    }
    .scene-card .txt { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px; }
    .scene-card h3 { color: var(--paper); font-size: 24px; margin-bottom: 12px; }
    .scene-card li { font-size: 13px; color: #d9d3c8; padding-left: 12px; position: relative; margin-top: 6px; }
    .scene-card li::before { content: ""; width: 6px; height: 1px; background: var(--copper); position: absolute; left: 0; top: .7em; }

    .demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 48px; }
    .demo-item { display: grid; grid-template-columns: 88px 1fr; gap: 20px; align-items: start; }
    .demo-no { font-family: var(--font-num); font-size: 42px; color: var(--copper); line-height: 1; }
    .demo-item h3 { font-size: 22px; margin: 6px 0 10px; }
    .demo-item p { color: var(--muted); font-size: 14px; margin-bottom: 14px; }

    .case-dark {
      position: relative; background: var(--graphite); color: var(--paper); padding: 108px 0;
      overflow: hidden;
    }
    .case-dark::before {
      content: ""; position: absolute; left: 0; top: 0; height: 1px; width: 0;
      background: var(--copper); transition: width 1.2s var(--ease);
    }
    .case-dark.is-in::before { width: 100%; }
    .case-dark h2, .case-dark h3 { color: var(--paper); }
    .case-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
    .case-points { display: grid; gap: 22px; margin-top: 28px; }
    .case-points article { padding-bottom: 18px; border-bottom: 1px solid rgba(230,225,214,.15); }
    .case-points h3 { font-size: 22px; margin-bottom: 8px; }
    .case-points p { color: #c4bfb4; font-size: 14px; }
    .big-num { font-family: var(--font-num); font-size: clamp(42px, 6vw, 72px); color: var(--copper-soft); line-height: 1; margin: 8px 0 20px; }

    .story-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .story-card { background: var(--white); border: 1px solid var(--line); }
    .story-card .pic { aspect-ratio: 16/10; overflow: hidden; }
    .story-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .story-card:hover img { transform: scale(1.04); }
    .story-card .txt { padding: 22px; }
    .role { font-size: 12px; letter-spacing: .16em; color: var(--pine); margin-bottom: 8px; }
    .story-card h3 { font-size: 22px; margin-bottom: 10px; }
    .story-card p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }

    .stat-bar { background: var(--ash); padding: 72px 0; }
    .stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
    .stat { padding: 8px 8px 0; border-left: 1px solid var(--line); padding-left: 18px; }
    .stat b {
      display: block; font-family: var(--font-num); font-size: clamp(28px, 3vw, 44px);
      line-height: 1; color: var(--graphite); font-weight: 500;
    }
    .stat b sup { font-size: .42em; top: -.6em; color: var(--copper); font-family: var(--font-sans); letter-spacing: 0; }
    .stat small { display: block; margin-top: 10px; font-size: 12px; letter-spacing: .12em; color: var(--muted); }

    .plan-switch { display: flex; gap: 8px; margin-bottom: 28px; }
    .plan-switch button {
      min-height: 44px; padding: 0 16px; border: 1px solid var(--line); color: var(--muted); font-size: 14px;
    }
    .plan-switch button.is-on, .plan-switch button:hover { border-color: var(--graphite); color: var(--graphite); }
    .plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
    .plan {
      background: var(--white); border: 1px solid var(--line); padding: 28px 26px 26px;
      display: flex; flex-direction: column; gap: 14px; transition: border-color .3s, transform .3s;
    }
    .plan:hover { transform: translateY(-3px); }
    .plan.is-featured { border-color: var(--copper); background: var(--paper); transform: translateY(-8px); }
    .plan.is-dim { opacity: .55; }
    .plan .tag { font-size: 12px; letter-spacing: .16em; color: var(--copper); }
    .plan h3 { font-size: 26px; }
    .price { font-family: var(--font-num); font-size: 34px; }
    .price em { font-style: normal; font-size: 14px; color: var(--muted); margin-left: 4px; font-family: var(--font-sans); }
    .plan ul li { position: relative; padding: 7px 0 7px 14px; font-size: 14px; color: var(--muted); }
    .plan ul li::before { content: ""; width: 6px; height: 1px; background: var(--pine); position: absolute; left: 0; top: 1.05em; }
    .plan .btn { margin-top: auto; }

    .quotes { display: grid; grid-template-columns: 1.2fr .9fr 1fr; gap: 16px; }
    .quote {
      background: var(--white); padding: 26px; border-top: 1px solid var(--copper);
      box-shadow: var(--shadow-sm);
    }
    .quote.tall { grid-row: span 1; padding-top: 34px; }
    .stars { color: var(--copper); letter-spacing: 3px; font-size: 12px; margin-bottom: 12px; }
    .quote p { font-family: var(--font-serif); font-size: 18px; line-height: 1.7; margin-bottom: 18px; }
    .quote cite { font-style: normal; font-size: 13px; color: var(--muted); }

    .proof-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: start; }
    .coop-bars { display: grid; gap: 10px; }
    .coop {
      display: grid; grid-template-columns: 140px 1fr auto; gap: 12px; align-items: center;
      padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px;
    }
    .bar { height: 2px; background: var(--line); position: relative; }
    .bar i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--pine); }
    .marks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .mark {
      min-height: 88px; display: grid; place-items: center; text-align: center;
      border: 1px solid var(--line); font-size: 13px; letter-spacing: .08em; color: var(--muted);
      background: var(--white);
    }
    .kpi-mini { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
    .kpi-mini div { padding: 16px; background: var(--white); border: 1px solid var(--line); }
    .kpi-mini b { display: block; font-family: var(--font-num); font-size: 28px; }
    .kpi-mini span { font-size: 12px; color: var(--muted); letter-spacing: .08em; }

    .flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-bottom: 36px; }
    .flow li {
      padding: 18px 16px 18px 0; border-top: 1px solid var(--copper);
      position: relative;
    }
    .flow li span { display: block; font-family: var(--font-num); color: var(--copper); font-size: 12px; margin-bottom: 8px; }
    .flow li strong { font-size: 15px; }
    .cert-pics { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .news-card { background: var(--white); border: 1px solid var(--line); display: flex; flex-direction: column; }
    .news-card .pic { aspect-ratio: 16/10; overflow: hidden; }
    .news-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
    .news-card:hover img { transform: scale(1.04); }
    .news-card .txt { padding: 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .news-card time { font-family: var(--font-num); font-size: 12px; color: var(--lithium); }
    .news-card h3 { font-size: 18px; }
    .news-card p { font-size: 13px; color: var(--muted); }
    .more-row { margin-top: 28px; }

    .faq-list { display: grid; gap: 8px; }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item button {
      width: 100%; text-align: left; min-height: 64px;
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      font-family: var(--font-serif); font-size: 20px; color: var(--graphite); padding: 12px 0;
    }
    .plus {
      width: 18px; height: 18px; position: relative; flex: none;
    }
    .plus::before, .plus::after {
      content: ""; position: absolute; background: var(--graphite); transition: transform .25s var(--ease), opacity .25s;
    }
    .plus::before { left: 0; right: 0; top: 8px; height: 1px; }
    .plus::after { top: 0; bottom: 0; left: 8px; width: 1px; }
    .faq-item.is-open .plus::after { transform: rotate(90deg); opacity: 0; }
    .faq-panel { display: none; padding: 0 0 18px; color: var(--muted); font-size: 15px; line-height: 1.85; max-width: 760px; }
    .faq-item.is-open .faq-panel { display: block; }

    .cta-band { background: var(--pine); color: var(--paper); padding: 96px 0; }
    .cta-band h2 { color: var(--paper); font-size: clamp(28px, 3.4vw, 44px); margin-bottom: 14px; }
    .cta-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
    .cta-side p { color: #dce8e3; margin-bottom: 18px; }
    .cta-side a { color: var(--paper); display: inline-flex; min-height: 44px; align-items: center; border-bottom: 1px solid rgba(243,239,230,.3); }
    .form {
      background: rgba(22, 22, 22, .16); padding: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px;
    }
    .form .full { grid-column: 1 / -1; }
    .form label { display: block; font-size: 12px; letter-spacing: .1em; margin-bottom: 6px; color: #e7efe9; }
    .form input, .form select, .form textarea {
      width: 100%; min-height: 44px; border: 1px solid rgba(243,239,230,.25);
      background: rgba(251,248,242,.08); color: var(--paper); padding: 8px 12px; border-radius: 0;
    }
    .form textarea { min-height: 96px; resize: vertical; }
    .form input:focus, .form select:focus, .form textarea:focus {
      outline: 2px solid var(--copper); outline-offset: 1px; border-color: transparent;
    }
    .form .is-error { border-color: #c96b6b; }
    .form-note { font-size: 12px; color: #d7e4de; }
    .form-success {
      display: none; grid-column: 1 / -1; padding: 16px; background: var(--graphite); color: var(--paper);
    }
    .form.is-ok .form-success { display: block; }
    .form.is-ok .fields, .form.is-ok button[type="submit"] { display: none; }

    .site-footer { background: var(--graphite); color: #c7c2b8; padding: 64px 0 28px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr .8fr 1fr; gap: 32px; margin-bottom: 48px; }
    .foot-brand .logo-mark { color: var(--paper); }
    .foot-brand p { margin-top: 16px; font-size: 14px; max-width: 28em; }
    .site-footer h4 { color: var(--paper); font-size: 14px; letter-spacing: .16em; margin-bottom: 14px; font-family: var(--font-sans); font-weight: 500; }
    .site-footer a { display: inline-flex; min-height: 36px; align-items: center; color: #c7c2b8; }
    .site-footer a:hover { color: var(--copper-soft); }
    .legal { border-top: 1px solid rgba(230,225,214,.12); padding-top: 18px; font-size: 12px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

    @media (max-width: 1440px) {
      .hero h1, .hero .slide-title { font-size: 60px; }
    }
    @media (max-width: 1024px) {
      .container { width: min(var(--max), calc(100% - 40px)); }
      .nav-links { display: none; }
      .menu-toggle { display: flex; }
      .nav-cta { display: none; }
      .split, .case-layout, .proof-grid, .cta-grid { grid-template-columns: 1fr; gap: 28px; }
      .bento { grid-template-columns: 1fr 1fr; }
      .bento-card.lg { grid-row: auto; }
      .product-stage { grid-template-columns: 1fr; }
      .scene-track { grid-template-columns: 1fr 1fr; }
      .stats { grid-template-columns: repeat(3, 1fr); gap: 20px; }
      .plans { grid-template-columns: 1fr; }
      .plan.is-featured { transform: none; }
      .quotes { grid-template-columns: 1fr 1fr; }
      .news-grid { grid-template-columns: 1fr 1fr; }
      .flow { grid-template-columns: 1fr 1fr; gap: 12px; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .hero-viewport { min-height: 520px; aspect-ratio: 16/10; }
      .window-bar .container { grid-template-columns: 1fr; min-height: auto; padding: 12px 0; }
      .window-metrics { justify-content: flex-start; flex-wrap: wrap; gap: 12px 20px; }
    }
    @media (max-width: 768px) {
      .top-meta span:nth-child(2), .cert-pills { display: none; }
      .section { padding: 72px 0; }
      .hero-viewport { aspect-ratio: 4/5; min-height: 620px; }
      .hero h1, .hero .slide-title { font-size: 38px; max-width: 12ch; }
      .bento, .bento-card.sm { grid-template-columns: 1fr; }
      .bento-card.sm { min-height: 0; }
      .bento-card.sm .pic { aspect-ratio: 16/10; height: auto; }
      .story-row, .demo-grid, .quotes, .news-grid { grid-template-columns: 1fr; }
      .demo-item { grid-template-columns: 64px 1fr; }
      .form { grid-template-columns: 1fr; }
      .stats { grid-template-columns: 1fr 1fr; }
      .scene-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
      .scene-card { flex: 0 0 78%; scroll-snap-align: start; min-height: 320px; }
      .foot-grid { grid-template-columns: 1fr; }
      .legal { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 32px); }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .btn { width: 100%; }
      .cert-pics { grid-template-columns: 1fr; }
      .marks { grid-template-columns: 1fr 1fr; }
      .coop { grid-template-columns: 1fr; }
    }
    @media (max-width: 375px) {
      .hero-viewport { aspect-ratio: 4/5; min-height: 640px; }
      .hero h1, .hero .slide-title { font-size: 34px; }
      .logo-mark { font-size: 18px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important; transition: none !important; scroll-behavior: auto !important;
      }
      .hero-slide img, .media img, .bento-card img, .product-card img, .scene-card img, .story-card img, .news-card img {
        transform: none !important;
      }
    }

/* roulang page: index */
:root{
  --ink:#16181B;
  --lime:#C6F25A;
  --copper:#B87333;
  --copper-soft:#a36b38;
  --paper:#F3EFE6;
  --metal:#E7E4DE;
  --dark:#0F1113;
  --text:#1C1C1C;
  --muted:#5C5A55;
  --inverse:#F6F3EA;
  --line:rgba(22,24,27,.12);
  --line-strong:rgba(22,24,27,.22);
  --radius:6px;
  --shadow:0 10px 28px rgba(22,24,27,.07);
  --container:1240px;
  --header-top:44px;
  --header-main:64px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:108px}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--paper);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.035em;line-height:1.18;color:var(--ink)}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.num{font-variant-numeric:tabular-nums lining-nums;font-feature-settings:"tnum" 1,"lnum" 1}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-compact{border-bottom-color:#c9c4ba;background:#efebe1}
.util-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:var(--header-top);
  width:min(var(--container),calc(100% - 40px));
  margin:0 auto;
  font-size:12px;color:var(--muted);
}
.brand-lock{display:flex;align-items:center;gap:12px;min-width:0}
.logo{
  display:flex;flex-direction:column;line-height:1.05;color:var(--ink);
}
.logo-main{font-weight:900;font-size:16px;letter-spacing:-.04em}
.logo-sub{font-size:10px;letter-spacing:.16em;color:var(--muted);font-weight:500}
.trust-marks{display:flex;gap:6px;flex-wrap:wrap}
.mark{
  border:1px solid var(--line-strong);
  padding:2px 7px;border-radius:3px;
  font-size:10px;letter-spacing:.04em;color:var(--ink);
}
.util-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.util-right a:hover{color:var(--ink)}
.anchor-bar{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:var(--header-main);
  width:min(var(--container),calc(100% - 40px));
  margin:0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-links a{
  position:relative;
  padding:10px 12px;
  font-size:14px;font-weight:700;color:var(--muted);
  min-height:44px;display:inline-flex;align-items:center;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.is-current{color:var(--ink)}
.nav-links a.is-current::after,
.nav-links a:hover::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;background:var(--lime);
}
.site-header.is-compact .util-bar{display:none}
.site-header.is-compact .anchor-bar{min-height:56px}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:4px;
}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  display:block;width:18px;height:1.5px;background:var(--ink);position:relative;transition:.2s var(--ease);
}
.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}
.site-header.menu-open .menu-toggle span{background:transparent}
.site-header.menu-open .menu-toggle span::before{top:0;transform:rotate(45deg)}
.site-header.menu-open .menu-toggle span::after{top:0;transform:rotate(-45deg)}
.drawer-home{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:4px;
  font-size:14px;font-weight:700;letter-spacing:.02em;
  transition:box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.btn:focus-visible,.nav-links a:focus-visible,.menu-toggle:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.hero-dot:focus-visible,.tab-btn:focus-visible,.faq-q:focus-visible{
  outline:2px solid var(--lime);outline-offset:3px;
}
.btn-primary{
  background:var(--ink);color:var(--lime);border:1px solid var(--lime);
}
.btn-primary:hover{box-shadow:inset 0 0 0 2px var(--paper)}
.btn-primary:active{background:#0c0d0f}
.btn-ghost{
  background:transparent;color:var(--inverse);border:1px solid rgba(246,243,234,.45);
}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-line{
  background:transparent;color:var(--ink);border:1px solid var(--ink);
}
.btn-line:hover{box-shadow:inset 0 -2px 0 var(--lime)}
.btn[disabled]{opacity:.45;pointer-events:none}

.hero{position:relative;min-height:min(92vh,860px);background:var(--dark);color:var(--inverse);overflow:hidden}
.hero-slides{position:absolute;inset:0}
.hero-slide{
  position:absolute;inset:0;opacity:0;visibility:hidden;
  transform:translateX(24px);
  transition:opacity .4s var(--ease),transform .4s var(--ease),visibility .4s;
}
.hero-slide.is-active{opacity:1;visibility:visible;transform:none;z-index:1}
.hero-slide img{
  width:100%;height:100%;object-fit:cover;filter:grayscale(.15) contrast(1.05);
}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,17,19,.88) 0%,rgba(15,17,19,.62) 46%,rgba(15,17,19,.28) 100%);
}
.hero-copy{
  position:relative;z-index:2;
  width:min(var(--container),calc(100% - 40px));
  margin:0 auto;
  padding:92px 0 150px;
  max-width:920px;
}
.brand-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;font-weight:700;color:var(--lime);margin-bottom:18px;
}
.brand-kicker::before{content:"";width:18px;height:1px;background:var(--lime)}
.hero h1,.hero-title{
  font-size:clamp(36px,5.8vw,74px);
  max-width:8.6em;
  color:var(--inverse);
  margin-bottom:16px;
}
.hero-sub{font-size:18px;font-weight:500;color:#d9d4c8;max-width:28em;margin-bottom:18px;line-height:1.55}
.hero-lead{font-size:16px;color:#bdb8ae;max-width:38em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.param-bar{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid rgba(246,243,234,.16);
  max-width:560px;
}
.param-bar div{padding:14px 22px 0 0;min-width:140px}
.param-bar strong{display:block;font-size:22px;color:var(--lime);font-weight:900;letter-spacing:-.03em}
.param-bar span{font-size:12px;color:#9c978c}
.hero-nav{
  position:absolute;z-index:3;right:4%;bottom:92px;
  display:flex;flex-direction:column;gap:8px;
}
.hero-dot{
  width:42px;height:3px;padding:0;background:rgba(246,243,234,.28);border-radius:0;
}
.hero-dot.is-active{background:var(--lime)}
.hero-arrows{position:absolute;z-index:3;right:4%;bottom:28px;display:flex;gap:8px}
.hero-arrows button{
  width:44px;height:44px;border:1px solid rgba(246,243,234,.3);color:var(--inverse);border-radius:4px;
}
.hero-arrows button:hover{border-color:var(--lime);color:var(--lime)}
.slot-bar{
  position:absolute;z-index:4;left:0;right:0;bottom:0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:12px 5%;
  background:#121416;
  border-top:1px solid rgba(198,242,90,.25);
  color:var(--inverse);
}
.slot-bar p{margin:0;font-size:13px;color:#cfcabf}
.slot-bar strong{color:var(--lime);font-weight:700}
.count-units{display:flex;gap:10px;align-items:center}
.count-units b{
  display:inline-flex;min-width:42px;justify-content:center;
  background:#1c1f23;padding:6px 8px;font-size:16px;font-weight:900;color:var(--lime);
}

.section{padding:120px 0}
.section-metal{background:var(--metal)}
.section-paper{background:var(--paper)}
.section-dark{background:var(--dark);color:var(--inverse)}
.section-dark h2,.section-dark h3{color:var(--inverse)}
.kicker{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--copper);margin-bottom:12px}
.section-dark .kicker{color:var(--lime)}
.section h2{font-size:clamp(28px,3.4vw,44px);margin-bottom:16px;max-width:14em}
.deck{max-width:42em;color:var(--muted);margin-bottom:40px;font-size:16px}
.section-dark .deck{color:#b8b3a8}
.split{display:grid;grid-template-columns:1.35fr .85fr;gap:56px;align-items:center}
.split.reverse{grid-template-columns:.85fr 1.35fr}
.figure{
  position:relative;border-radius:6px;overflow:hidden;border:1px solid var(--line);
}
.figure img{width:100%;height:100%;object-fit:cover;min-height:420px}
.caption-chip{
  position:absolute;left:14px;bottom:14px;
  background:rgba(15,17,19,.86);color:var(--lime);
  font-size:12px;padding:6px 10px;border-radius:3px;
}
.prose p{color:var(--muted)}
.spec-list{margin-top:22px;display:grid;gap:0;border-top:1px solid var(--line)}
.spec-list li{
  display:grid;grid-template-columns:140px 1fr;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.spec-list strong{color:var(--ink);font-weight:700}

.cap-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr;
  grid-template-rows:auto auto;
  gap:16px;
}
.card{
  background:#faf7f0;
  border:1px solid var(--line);
  border-radius:6px;
  padding:28px 24px;
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(184,115,51,.45)}
.cap-lead{
  grid-row:1 / span 2;
  background:var(--ink);
  color:var(--inverse);
  display:flex;flex-direction:column;justify-content:flex-end;min-height:420px;
  position:relative;overflow:hidden;
}
.cap-lead img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.cap-lead .card-body{position:relative;z-index:1}
.badge{
  display:inline-flex;align-items:center;
  font-size:11px;letter-spacing:.08em;font-weight:700;
  padding:3px 8px;border-radius:3px;margin-bottom:12px;
}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-copper{background:var(--copper);color:#fff}
.badge-line{border:1px solid currentColor;color:var(--muted)}
.metric{font-size:34px;font-weight:900;letter-spacing:-.04em;line-height:1;margin:10px 0 12px;color:var(--ink)}
.cap-lead .metric{color:var(--lime)}
.card h3{font-size:20px;margin-bottom:8px}
.card p{margin:0;color:var(--muted);font-size:15px}
.cap-lead p{color:#d7d2c7}
.rule{height:1px;background:var(--line);margin:14px 0}

.scene-grid{
  display:grid;
  grid-template-columns:1.25fr .9fr;
  grid-template-rows:minmax(280px,1fr) minmax(210px,auto);
  gap:16px;
}
.scene{
  position:relative;overflow:hidden;border-radius:6px;min-height:210px;color:var(--inverse);
  border:1px solid rgba(22,24,27,.2);
}
.scene img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.scene::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,17,19,.1),rgba(15,17,19,.78))}
.scene-body{position:relative;z-index:1;padding:24px;height:100%;display:flex;flex-direction:column;justify-content:flex-end}
.scene:first-child{grid-row:span 2}
.scene h3{color:#fff;font-size:24px;margin:8px 0}
.scene p{margin:0;color:#ddd8ce;font-size:14px}
.scene:hover img{transform:scale(1.03);transition:transform .4s var(--ease)}

.product-row{display:grid;grid-template-columns:1.05fr .9fr 1fr;gap:18px;align-items:start}
.product-card{padding:0;overflow:hidden}
.product-card img{width:100%;height:230px;object-fit:cover}
.product-card:nth-child(2){margin-top:36px}
.product-card:nth-child(3){margin-top:18px}
.product-body{padding:22px}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:12px 0 18px;border-top:1px solid var(--line)}
.kv div{padding:10px 8px 10px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.kv b{display:block;color:var(--ink);font-size:14px}

.demo-stage{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch}
.demo-frame{background:#111316;border-radius:6px;overflow:hidden;min-height:480px;position:relative}
.demo-frame img{width:100%;height:100%;object-fit:cover;min-height:480px;opacity:.92}
.demo-index{position:absolute;left:18px;top:18px;font-size:72px;font-weight:900;color:rgba(198,242,90,.28);line-height:1}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.tab-btn{
  min-height:40px;padding:0 14px;border:1px solid var(--line-strong);border-radius:4px;
  font-size:13px;font-weight:700;color:var(--muted);
}
.tab-btn.is-on{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.tab-panel{display:none}
.tab-panel.is-on{display:block;animation:fade .35s var(--ease)}
@keyframes fade{from{opacity:0}to{opacity:1}}
.tab-panel h3{font-size:28px;margin-bottom:12px}
.tab-panel li{padding:8px 0 8px 18px;position:relative;color:var(--muted);font-size:15px}
.tab-panel li::before{content:"";width:7px;height:1px;background:var(--copper);position:absolute;left:0;top:18px}

.case-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px}
.case-item{padding:22px 0;border-top:1px solid rgba(246,243,234,.12)}
.case-item h3{font-size:20px;margin-bottom:8px}
.case-item p{margin:0;color:#b9b4aa;font-size:15px}
.idea{font-size:clamp(28px,3vw,42px);max-width:8.4em;margin-bottom:16px}

.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{padding:28px 24px;background:#faf7f0;border:1px solid var(--line);border-radius:6px;position:relative}
.plan-featured{border-color:var(--copper);background:#f7f1e6}
.corner{
  position:absolute;right:14px;top:14px;
  background:var(--copper);color:#fff;font-size:11px;padding:3px 8px;border-radius:3px;font-weight:700;
}
.price{font-size:28px;font-weight:900;margin:10px 0;letter-spacing:-.04em}
.price span{font-size:13px;font-weight:500;color:var(--muted)}
.plan ul{margin:12px 0 22px}
.plan li{font-size:14px;color:var(--muted);padding:6px 0;border-bottom:1px solid var(--line)}
.note{font-size:13px;color:var(--muted);margin-top:18px}

.story-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:16px}
.story-long{display:grid;grid-template-columns:.9fr 1.1fr;min-height:420px;padding:0;overflow:hidden}
.story-long img,.story-short img{width:100%;height:100%;object-fit:cover;min-height:220px}
.story-copy{padding:28px}
.story-short{padding:0;overflow:hidden}
.story-short .story-copy{padding:20px}
.role{font-size:12px;color:var(--copper);font-weight:700;letter-spacing:.08em}

.stats{
  display:grid;grid-template-columns:repeat(6,1fr);gap:0;
  background:#ece8df;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:42px 18px;text-align:left;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:34px;font-weight:900;letter-spacing:-.04em;color:var(--ink)}
.stat span{font-size:13px;color:var(--muted)}

.review-wall{columns:3;column-gap:16px}
.review{
  break-inside:avoid;margin-bottom:16px;
  background:#faf7f0;border:1px solid var(--line);padding:20px;border-radius:6px;
}
.stars{color:var(--copper);letter-spacing:2px;font-size:12px;margin-bottom:8px}
.tag{display:inline-block;font-size:11px;border:1px solid var(--line-strong);padding:2px 7px;border-radius:3px;margin-bottom:10px;color:var(--muted)}
.review p{margin:0;font-size:14px;color:var(--text)}
.who{display:block;margin-top:12px;font-size:12px;color:var(--muted)}

.trust-track{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.trust-node{
  padding:22px 16px;border-top:2px solid var(--lime);background:#f7f4ec;font-size:14px;font-weight:700;
}
.trust-node span{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:6px}
.quote{
  margin-top:36px;font-size:clamp(22px,2.4vw,32px);font-weight:900;max-width:18em;letter-spacing:-.03em;line-height:1.35;
}

.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.news-card{padding:0;overflow:hidden}
.news-card img{height:160px;width:100%;object-fit:cover}
.news-card .card-body{padding:18px}
.news-card time{font-size:12px;color:var(--copper)}
.news-card h3{font-size:17px;margin:8px 0;line-height:1.4}
.more-link{display:inline-block;margin-top:22px;font-weight:700;border-bottom:2px solid var(--lime);padding-bottom:2px}

.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.check-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:15px}
.check-list b{display:block;color:var(--ink)}

.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;padding:18px 36px 18px 0;font-weight:700;font-size:16px;position:relative;color:var(--ink);
}
.faq-q::after,.faq-q::before{
  content:"";position:absolute;right:0;top:50%;width:14px;height:1.5px;background:var(--ink);
}
.faq-q::after{transform:rotate(90deg);transition:transform .2s var(--ease),opacity .2s}
.faq-item.is-open .faq-q::after{transform:rotate(0deg);opacity:0}
.faq-a{height:0;overflow:hidden;transition:height .28s var(--ease)}
.faq-a p{padding:0 8px 18px 0;color:var(--muted);font-size:15px}

.cta-final{padding:132px 0 120px;text-align:left}
.cta-final h2{font-size:clamp(32px,4.6vw,58px);max-width:10em;margin-bottom:14px}
.form-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;margin-top:36px;align-items:start}
.form label{display:block;font-size:13px;font-weight:700;margin:0 0 6px}
.form input,.form select,.form textarea{
  width:100%;min-height:46px;padding:10px 12px;margin-bottom:16px;
  border:1px solid #cfc9bd;background:#fbfaf6;border-radius:4px;
}
.form textarea{min-height:96px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--lime);background:#fff}
.form-side{border-left:1px solid var(--line);padding-left:36px}
.form-side a{color:var(--ink);font-weight:700;border-bottom:1px solid var(--lime)}
.success{
  display:none;margin-top:16px;padding:14px 16px;background:#edf8c9;border:1px solid var(--lime);font-size:14px;
}
.success.is-show{display:block}

.site-footer{background:var(--ink);color:#b4afa5;padding:72px 0 28px;font-size:13px;line-height:1.8}
.foot-grid{display:grid;grid-template-columns:1.2fr .9fr 1fr .9fr;gap:32px;margin-bottom:40px}
.site-footer .logo{color:var(--inverse);margin-bottom:12px}
.site-footer h4{color:var(--inverse);font-size:14px;margin-bottom:12px;letter-spacing:0;font-weight:700}
.site-footer a:hover{color:var(--lime)}
.legal{display:flex;flex-wrap:wrap;gap:12px 22px;border-top:1px solid rgba(246,243,234,.1);padding-top:18px;color:#8f8a81}
.legal-block{margin-top:18px;color:#8f8a81}
.legal-block h4{margin-top:8px}

@media (max-width:1440px){
  .hero-copy{padding-left:0}
}
@media (max-width:1024px){
  .menu-toggle{display:inline-flex}
  .nav-cta-desktop{display:none}
  .nav-links{
    position:fixed;inset:0;background:var(--dark);
    flex-direction:column;align-items:flex-start;justify-content:center;
    padding:88px 32px;gap:4px;
    transform:translateX(100%);
    transition:transform .28s var(--ease);
  }
  .nav-links a{color:#d8d3c8;font-size:22px;min-height:48px}
  .nav-links a.is-current::after,.nav-links a:hover::after{background:var(--lime);bottom:6px}
  .site-header.menu-open .nav-links{transform:none}
  .drawer-home{display:inline-flex}
  .drawer-cta{margin-top:18px;display:inline-flex}
  .trust-marks,.util-hours{display:none}
  .split,.split.reverse,.demo-stage,.case-layout,.story-grid,.story-long,.check-grid,.faq-wrap,.form-grid,.foot-grid{
    grid-template-columns:1fr;gap:28px;
  }
  .cap-grid,.product-row,.plan-grid,.news-grid,.trust-track,.stats{grid-template-columns:1fr 1fr}
  .cap-lead{grid-row:auto;min-height:280px}
  .scene-grid{grid-template-columns:1fr 1fr;grid-template-rows:none}
  .scene:first-child{grid-row:auto;min-height:280px}
  .review-wall{columns:2}
  .form-side{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px}
  .section{padding:84px 0}
}
@media (max-width:768px){
  .hero{min-height:auto}
  .hero-copy{padding:72px 0 168px}
  .hero-nav{right:auto;left:20px;bottom:86px;flex-direction:row}
  .hero-arrows{right:20px}
  .product-row,.plan-grid,.news-grid,.trust-track{grid-template-columns:1fr}
  .product-card:nth-child(2),.product-card:nth-child(3){margin-top:0}
  .scene-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--line)}
  .review-wall{columns:1}
  .slot-bar{flex-direction:column;align-items:flex-start}
  .figure img,.demo-frame img,.story-long img{min-height:240px}
  .section{padding:64px 0}
  .cta-final{padding:88px 0}
}
@media (max-width:520px){
  .container,.util-bar,.anchor-bar{width:calc(100% - 28px)}
  body{font-size:16px}
  .hero h1,.hero-title{max-width:7.4em}
  .param-bar div{min-width:46%}
  .cap-grid{grid-template-columns:1fr}
  .spec-list li{grid-template-columns:1fr}
  .count-units b{min-width:36px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .hero-slide{transform:none}
}