/* roulang page: index */
:root {
      --graphite: #16181B;
      --copper: #B87333;
      --probe: #1F7A6B;
      --probe-soft: #D7E8E3;
      --ceramic: #F4F1EA;
      --tungsten: #E7E4DC;
      --void: #0E1012;
      --ink: #1B1D20;
      --mute: #5C615B;
      --line: #DDD8CE;
      --paper: #FBF9F4;
      --danger: #A33B24;
      --radius: 6px;
      --radius-sm: 4px;
      --shadow: 0 1px 0 rgba(22, 24, 27, 0.05);
      --container: 1280px;
      --space: 88px;
      --header-top: 38px;
      --nav-h: 72px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--ceramic);
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.7;
      letter-spacing: 0.01em;
      overflow-x: hidden;
      padding-bottom: calc(72px + env(safe-area-inset-bottom));
    }
    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; }
    h1, h2, h3, h4, p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible {
      outline: 2px solid var(--probe);
      outline-offset: 2px;
    }
    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }
    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--probe);
      font-size: 12px;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      font-weight: 600;
    }
    .kicker::before {
      content: "";
      width: 18px;
      height: 1px;
      background: var(--copper);
    }
    .section {
      padding: var(--space) 0;
      position: relative;
    }
    .section h2 {
      font-size: clamp(28px, 3.2vw, 40px);
      line-height: 1.2;
      font-weight: 600;
      letter-spacing: 0.01em;
      max-width: 18em;
    }
    .lead {
      margin-top: 18px;
      max-width: 42em;
      color: var(--mute);
      font-size: 16px;
    }
    .bg-ceramic { background: var(--ceramic); }
    .bg-tungsten { background: var(--tungsten); }
    .bg-void { background: var(--void); color: #E8E4DB; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
    }
    .topbar {
      background: var(--tungsten);
      color: var(--mute);
      font-size: 12px;
      border-bottom: 1px solid var(--line);
    }
    .topbar-inner {
      min-height: var(--header-top);
      display: flex;
      align-items: center;
      gap: 22px;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: none;
    }
    .topbar-inner::-webkit-scrollbar { display: none; }
    .topbar a:hover { color: var(--ink); }
    .trust {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 2px 8px;
      border: 1px solid #cfc9bb;
      border-radius: 99px;
      color: var(--probe);
      background: rgba(31, 122, 107, 0.08);
    }
    .navbar {
      background: var(--ceramic);
      border-bottom: 1px solid var(--line);
      transition: background 0.25s ease, box-shadow 0.25s ease, min-height 0.25s ease;
    }
    .navbar-inner {
      min-height: var(--nav-h);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 24px;
    }
    .site-header.is-stuck .navbar {
      background: var(--graphite);
      box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
    }
    .site-header.is-stuck .logo-name,
    .site-header.is-stuck .nav a,
    .site-header.is-stuck .menu-toggle { color: #F4F1EA; }
    .site-header.is-stuck .logo-sub { color: #C48A4A; }
    .site-header.is-stuck .navbar { border-bottom-color: #2A2D31; }
    .logo {
      display: flex;
      align-items: baseline;
      gap: 10px;
      min-height: 44px;
    }
    .logo-name {
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.08em;
    }
    .logo-sub {
      font-size: 12px;
      font-weight: 400;
      color: var(--copper);
      letter-spacing: 0.2em;
    }
    .nav {
      display: flex;
      justify-content: center;
      gap: 4px;
    }
    .nav a {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      padding: 0 10px;
      font-size: 14px;
      color: var(--ink);
      position: relative;
    }
    .nav a::after {
      content: "";
      position: absolute;
      left: 10px;
      right: 10px;
      bottom: 10px;
      height: 1px;
      background: var(--copper);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.25s ease;
    }
    .nav a:hover::after,
    .nav a.is-active::after { transform: scaleX(1); }
    .nav-cta { justify-self: end; }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
      letter-spacing: 0.04em;
      font-size: 14px;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      background: var(--copper);
      color: #fff;
    }
    .btn-primary:hover { border-color: var(--probe); }
    .btn-ghost {
      background: transparent;
      border-color: var(--graphite);
      color: var(--graphite);
    }
    .btn-ghost:hover {
      border-color: var(--probe);
      color: var(--probe);
    }
    .btn-light {
      background: transparent;
      border-color: #E8E4DB;
      color: #E8E4DB;
    }
    .btn-light:hover { border-color: var(--probe); color: #fff; }
    .btn-link {
      padding: 0;
      min-height: auto;
      border: 0;
      background: none;
      color: var(--copper);
      position: relative;
    }
    .btn-link::after {
      content: "";
      display: block;
      width: 0;
      height: 1px;
      margin-top: 4px;
      background: currentColor;
      transition: width 0.25s ease;
    }
    .btn-link:hover::after { width: 100%; }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: transparent;
      position: relative;
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      position: absolute;
      left: 12px;
      right: 12px;
      height: 1px;
      background: currentColor;
      content: "";
    }
    .menu-toggle span { top: 21px; }
    .menu-toggle span::before { top: -7px; }
    .menu-toggle span::after { top: 7px; }
    .hero {
      position: relative;
      background: var(--void);
      color: #F4F1EA;
      clip-path: polygon(0 0, 100% 0, 100% calc(100% - 56px), 0 100%);
      overflow: hidden;
      min-height: 860px;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(184, 115, 51, 0.35) 0.7px, transparent 0.8px);
      background-size: 22px 22px;
      opacity: 0.25;
      pointer-events: none;
      z-index: 2;
    }
    .slides {
      position: absolute;
      inset: 0;
    }
    .slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity 0.8s ease;
    }
    .slide.is-on { opacity: 1; }
    .slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: grayscale(0.15) contrast(1.05);
    }
    .slide::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(14, 16, 18, 0.88) 8%, rgba(14, 16, 18, 0.55) 48%, rgba(14, 16, 18, 0.2) 100%);
    }
    .hero-grid {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 36px;
      padding: 54px 0 110px;
      align-items: end;
    }
    .brand-mark {
      font-size: 13px;
      letter-spacing: 0.28em;
      color: var(--copper);
      margin-bottom: 16px;
    }
    .hero h1 {
      font-size: clamp(36px, 5vw, 58px);
      line-height: 1.12;
      font-weight: 600;
      max-width: 10em;
    }
    .hero-copy {
      margin-top: 22px;
      max-width: 40em;
      color: #C9C4B8;
      font-size: 16px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }
    .hero-controls {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 28px;
    }
    .dots { display: flex; gap: 8px; }
    .dots button {
      width: 22px;
      height: 6px;
      border: 0;
      border-radius: 99px;
      background: rgba(244, 241, 234, 0.28);
      padding: 0;
    }
    .dots button.is-on { background: var(--copper); }
    .pause-btn {
      min-height: 32px;
      padding: 0 10px;
      border: 1px solid rgba(232, 228, 219, 0.35);
      background: transparent;
      color: #E8E4DB;
      border-radius: 4px;
      font-size: 12px;
    }
    .invite {
      background: rgba(22, 24, 27, 0.82);
      border: 1px solid rgba(184, 115, 51, 0.45);
      border-radius: 8px;
      padding: 24px 24px 22px;
      backdrop-filter: none;
    }
    .invite h3 {
      font-size: 20px;
      font-weight: 600;
    }
    .invite p {
      margin-top: 10px;
      color: #C9C4B8;
      font-size: 14px;
    }
    .reward-list {
      margin: 16px 0 18px;
      display: grid;
      gap: 8px;
      font-size: 13px;
      color: #E8E4DB;
    }
    .reward-list li {
      display: grid;
      grid-template-columns: 14px 1fr;
      gap: 8px;
    }
    .reward-list li::before {
      content: "";
      width: 6px;
      height: 6px;
      margin-top: 8px;
      border-radius: 50%;
      background: var(--probe);
    }
    .quota-head {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      letter-spacing: 0.08em;
      color: #A8A59C;
    }
    .quota {
      margin-top: 8px;
      height: 6px;
      background: #2A2D31;
      border-radius: 99px;
      overflow: hidden;
    }
    .quota span {
      display: block;
      height: 100%;
      width: 0;
      background: linear-gradient(90deg, var(--probe), #3AA392);
      transition: width 1.2s ease;
    }
    .invite-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .copy-tip {
      margin-top: 10px;
      min-height: 20px;
      font-size: 12px;
      color: var(--probe);
    }
    .pain-list { display: grid; gap: 14px; margin-top: 40px; }
    .pain-item {
      display: grid;
      grid-template-columns: 120px 1fr 1.2fr;
      gap: 24px;
      align-items: center;
      padding: 28px 32px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 6px;
    }
    .pain-item:nth-child(2) { margin-left: 36px; }
    .pain-item:nth-child(3) { margin-left: 72px; }
    .pain-num {
      font-size: 42px;
      letter-spacing: 0.16em;
      color: var(--copper);
      font-weight: 500;
      line-height: 1;
    }
    .pain-item h3 { font-size: 22px; }
    .pain-item p { color: var(--mute); font-size: 15px; }
    .split {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 56px;
      align-items: center;
    }
    .frame {
      position: relative;
      border: 1px solid var(--line);
      border-radius: 6px;
      overflow: hidden;
    }
    .frame img { width: 100%; height: 460px; object-fit: cover; }
    .spec-list {
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px 24px;
    }
    .spec-list div {
      border-top: 1px solid var(--line);
      padding-top: 10px;
    }
    .spec-list dt {
      font-size: 12px;
      color: var(--mute);
      letter-spacing: 0.08em;
    }
    .spec-list dd { margin: 4px 0 0; font-size: 14px; }
    .scene-track {
      margin-top: 36px;
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: 72%;
      gap: 18px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 8px;
    }
    .scene-card {
      position: relative;
      scroll-snap-align: start;
      border-radius: 8px;
      overflow: hidden;
      min-height: 420px;
      border: 1px solid var(--line);
    }
    .scene-card img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .scene-float {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      background: rgba(14, 16, 18, 0.86);
      color: #F4F1EA;
      padding: 18px 18px 16px;
      border-radius: 6px;
      border: 1px solid rgba(184, 115, 51, 0.35);
    }
    .scene-float h3 { font-size: 20px; }
    .scene-float p { margin-top: 8px; color: #C9C4B8; font-size: 14px; }
    .scene-float a { display: inline-block; margin-top: 10px; color: #D7A56A; }
    .cap-grid {
      margin-top: 40px;
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 16px;
    }
    .card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 24px;
      box-shadow: var(--shadow);
      transition: border-color 0.2s ease, transform 0.2s ease;
    }
    .card:hover {
      border-color: var(--copper);
      transform: translateY(-2px);
    }
    .card h3 { font-size: 20px; }
    .card p { margin-top: 10px; color: var(--mute); font-size: 14px; }
    .card-wide { grid-column: 1 / 2; grid-row: 1 / 3; padding: 32px; }
    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 24px;
      padding: 0 8px;
      border-radius: 99px;
      background: var(--probe-soft);
      color: var(--probe);
      font-size: 12px;
      margin-bottom: 12px;
    }
    .product-stack { margin-top: 36px; display: grid; gap: 22px; }
    .product-card {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      min-height: 320px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 8px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .product-card:hover { border-color: var(--copper); }
    .product-card:nth-child(even) { grid-template-columns: 1fr 1.05fr; }
    .product-card:nth-child(even) .product-cover { order: 2; }
    .product-cover img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
    .product-body { padding: 32px; display: flex; flex-direction: column; justify-content: center; }
    .product-body h3 { font-size: 26px; }
    .product-body p { margin: 12px 0 18px; color: var(--mute); }
    .param {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px 16px;
      margin-bottom: 20px;
      font-size: 13px;
    }
    .param span { color: var(--mute); }
    .product-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
    .cases { overflow: hidden; }
    .cases::before {
      content: "";
      position: absolute;
      left: -30%;
      top: 86px;
      width: 40%;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--copper), transparent);
      animation: sweep 9s linear infinite;
    }
    @keyframes sweep {
      to { transform: translateX(280%); }
    }
    .case-grid {
      margin-top: 36px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }
    .case-item {
      border: 1px solid #2A2D31;
      border-radius: 6px;
      padding: 24px;
      background: #14161A;
    }
    .case-item h3 { font-size: 20px; color: #F4F1EA; }
    .case-item p { margin-top: 10px; color: #B6B1A7; font-size: 14px; }
    .case-meta {
      margin-top: 16px;
      color: var(--copper);
      font-size: 12px;
      letter-spacing: 0.08em;
    }
    .compare-wrap {
      margin-top: 36px;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 24px;
    }
    .table-wrap, .tier-box {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 6px;
      overflow: hidden;
    }
    th, td {
      text-align: left;
      padding: 14px 16px;
      border-bottom: 1px solid var(--line);
      font-size: 14px;
      vertical-align: top;
    }
    th { background: #EFEBE1; font-weight: 600; }
    tr:last-child td { border-bottom: 0; }
    .tier-box { padding: 24px; }
    .tier-box h3 { font-size: 18px; margin-bottom: 14px; }
    .tier-box li {
      padding: 12px 0;
      border-top: 1px solid var(--line);
      font-size: 14px;
    }
    .tier-box strong { display: block; margin-bottom: 4px; }
    .story-grid {
      margin-top: 36px;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 18px;
    }
    .quote {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 20px;
      padding: 22px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 6px;
    }
    .quote img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      border-radius: 4px;
    }
    .quote p { font-size: 15px; }
    .quote footer {
      margin-top: 14px;
      color: var(--mute);
      font-size: 13px;
    }
    .stats-row {
      margin-top: 36px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .stat {
      padding: 8px 8px 0 0;
      border-top: 1px solid var(--line);
    }
    .stat b {
      display: block;
      margin-top: 16px;
      font-size: 48px;
      letter-spacing: 0.08em;
      font-weight: 500;
      line-height: 1;
    }
    .stat span {
      display: block;
      margin-top: 10px;
      color: var(--mute);
      font-size: 13px;
    }
    .review-grid {
      margin-top: 36px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .review-grid article:nth-child(2) { margin-top: 28px; }
    .review-grid article:nth-child(3) { margin-top: 12px; }
    .cert-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
    }
    .cert-bar span {
      border: 1px solid var(--line);
      border-radius: 99px;
      padding: 6px 12px;
      font-size: 12px;
      color: var(--probe);
    }
    .news-list { margin-top: 36px; display: grid; gap: 16px; }
    .news-item {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 22px;
      padding: 16px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 6px;
      transition: border-color 0.2s ease;
    }
    .news-item:hover { border-color: var(--copper); }
    .news-item img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      border-radius: 4px;
    }
    .news-item h3 { font-size: 20px; }
    .news-item p { margin-top: 8px; color: var(--mute); font-size: 14px; }
    .news-item time { display: block; margin-top: 10px; font-size: 12px; color: var(--copper); letter-spacing: 0.08em; }
    .faq-list { margin-top: 36px; display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); background: var(--paper); border-radius: 6px; }
    .faq-item button {
      width: 100%;
      text-align: left;
      background: none;
      border: 0;
      min-height: 56px;
      padding: 16px 20px;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      gap: 16px;
    }
    .faq-item button span:last-child { color: var(--copper); font-weight: 400; }
    .faq-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.28s ease;
    }
    .faq-item.is-open .faq-panel { max-height: 240px; }
    .faq-panel p {
      padding: 0 20px 18px;
      color: var(--mute);
      font-size: 14px;
    }
    .assure-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: 6px;
      overflow: hidden;
      margin-top: 36px;
    }
    .assure-row a {
      background: var(--paper);
      padding: 24px 20px;
      min-height: 120px;
      display: block;
    }
    .assure-row strong { display: block; margin-bottom: 8px; }
    .assure-row span { color: var(--mute); font-size: 14px; }
    .contact-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 36px;
      margin-top: 36px;
    }
    .hint-list { margin-top: 20px; }
    .hint-list li {
      padding: 12px 0;
      border-top: 1px solid #2A2D31;
      color: #C9C4B8;
      font-size: 14px;
    }
    .form {
      background: #14161A;
      border: 1px solid #2A2D31;
      border-radius: 8px;
      padding: 28px;
    }
    .form-row { margin-bottom: 14px; }
    .form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    label { display: block; margin-bottom: 6px; font-size: 13px; }
    input, select, textarea {
      width: 100%;
      background: #0E1012;
      border: 1px solid #3A3E44;
      border-radius: 4px;
      min-height: 44px;
      padding: 10px 12px;
    }
    textarea { min-height: 110px; resize: vertical; }
    .is-error input, .is-error select, .is-error textarea { border-color: var(--danger); }
    .err { color: #E8A394; font-size: 12px; margin-top: 4px; }
    .ok-msg {
      margin-bottom: 16px;
      padding: 12px 14px;
      border: 1px solid var(--probe);
      color: #BFE0D8;
      border-radius: 4px;
      font-size: 14px;
    }
    .site-footer {
      background: #121416;
      color: #C9C4B8;
      padding: 56px 0 28px;
      border-top: 1px solid #2A2D31;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 0.8fr 0.8fr 1.1fr;
      gap: 28px;
    }
    .site-footer h3 { color: #F4F1EA; font-size: 16px; margin-bottom: 14px; }
    .site-footer a:hover { color: #F4F1EA; }
    .site-footer li { margin: 8px 0; font-size: 14px; }
    .legal {
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid #2A2D31;
      font-size: 12px;
      color: #8D8A82;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .sticky-bar {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 40;
      background: var(--graphite);
      color: #F4F1EA;
      border-top: 1px solid #2A2D31;
      padding: 10px 0 calc(10px + env(safe-area-inset-bottom));
    }
    .sticky-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .sticky-inner p { font-size: 14px; }
    .sticky-inner a.tel { color: var(--copper); margin-left: 10px; }
    .mobile-only { display: none; }
    @media (max-width: 1440px) {
      :root { --container: 1200px; }
    }
    @media (max-width: 1024px) {
      .navbar-inner { grid-template-columns: auto auto; }
      .nav, .nav-cta { display: none; }
      .menu-toggle { display: inline-flex; justify-self: end; }
      .nav.is-open, .nav-cta.is-open {
        display: flex;
      }
      .nav.is-open {
        position: fixed;
        inset: 110px 0 0 0;
        background: var(--ceramic);
        flex-direction: column;
        justify-content: flex-start;
        padding: 24px;
        z-index: 60;
        overflow: auto;
      }
      .nav.is-open a { min-height: 48px; font-size: 18px; border-bottom: 1px solid var(--line); }
      .nav-cta.is-open {
        position: fixed;
        left: 24px;
        right: 24px;
        bottom: 88px;
        z-index: 61;
        display: block;
      }
      .nav-cta.is-open .btn { width: 100%; }
      .hero { min-height: 0; clip-path: none; }
      .hero-grid, .split, .compare-wrap, .story-grid, .contact-grid, .footer-grid, .product-card, .product-card:nth-child(even) {
        grid-template-columns: 1fr;
      }
      .product-card:nth-child(even) .product-cover { order: 0; }
      .cap-grid, .case-grid, .stats-row, .review-grid, .assure-row { grid-template-columns: 1fr 1fr; }
      .card-wide { grid-column: auto; grid-row: auto; }
      .pain-item, .pain-item:nth-child(2), .pain-item:nth-child(3) {
        margin-left: 0;
        grid-template-columns: 80px 1fr;
      }
      .pain-item p { grid-column: 1 / -1; }
      .scene-track { grid-auto-columns: 85%; }
    }
    @media (max-width: 768px) {
      :root { --space: 64px; }
      .container { width: min(100% - 32px, var(--container)); }
      .hero-grid { padding-top: 32px; }
      .cap-grid, .case-grid, .stats-row, .review-grid, .assure-row, .form-row.two, .quote, .news-item {
        grid-template-columns: 1fr;
      }
      .review-grid article:nth-child(2),
      .review-grid article:nth-child(3) { margin-top: 0; }
      .quote img { width: 100%; height: 180px; }
      .stat b { font-size: 36px; }
      .frame img, .scene-card img, .product-cover img { height: 240px; min-height: 240px; }
      .desktop-only { display: none; }
      .mobile-only { display: inline-flex; }
      .sticky-inner p { display: none; }
      .sticky-actions { display: flex; gap: 8px; width: 100%; }
      .sticky-actions .btn { flex: 1; }
    }
    @media (max-width: 520px) {
      .hero h1 { font-size: 32px; }
      .pain-num { font-size: 32px; }
      .invite-actions .btn, .hero-actions .btn { width: 100%; }
      .legal { flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
    }