/* roulang page: index */
:root {
      --ink: #1B3A32;
      --ink-deep: #141A18;
      --moss: #2F5D50;
      --copper: #A6844A;
      --copper-soft: rgba(166,132,74,.25);
      --paper: #F3EFE6;
      --card: #FAF8F4;
      --sand: #E7E1D6;
      --text: #1C1917;
      --muted: #5A554C;
      --disabled: #9A9488;
      --line: #D4CDBF;
      --cream: #E8E2D6;
      --white: #FFFdf8;
      --danger: #8A4B2A;
      --radius: 5px;
      --shadow: 0 8px 24px rgba(20,26,24,.06);
      --shadow-hover: 0 10px 28px rgba(20,26,24,.10);
      --container: 1200px;
      --pad-x: 24px;
      --header-top: 42px;
      --header-nav: 76px;
      --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
      --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --ease: 180ms ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--moss); text-decoration: none; }
    a:hover { color: var(--copper); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { font-family: var(--font-serif); color: var(--text); margin: 0; letter-spacing: -.02em; }
    p { margin: 0 0 .9em; }
    p:last-child { margin-bottom: 0; }
    ul, ol { margin: 0; padding: 0; }
    :focus-visible {
      outline: 2px solid var(--copper);
      outline-offset: 3px;
    }
    .skip {
      position: absolute; left: -999px; top: 0;
      background: var(--ink); color: var(--paper); padding: 8px 16px; z-index: 400;
    }
    .skip:focus { left: 16px; top: 8px; }
    .container {
      width: min(var(--container), calc(100% - var(--pad-x) * 2));
      max-width: 1280px;
      margin: 0 auto;
    }
    .topbar {
      height: var(--header-top);
      background: var(--ink);
      color: var(--cream);
      font-size: 13px;
      line-height: var(--header-top);
      border-bottom: 1px solid rgba(243,239,230,.12);
    }
    .topbar .container {
      display: flex; justify-content: space-between; align-items: center; gap: 16px;
    }
    .topbar a { color: var(--cream); }
    .topbar a:hover { color: #f0d9a8; }
    .topbar-left, .topbar-right { display: flex; gap: 18px; align-items: center; white-space: nowrap; }
    .site-header {
      position: sticky; top: 0; z-index: 100;
      background: var(--card);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 1px 0 rgba(20,26,24,.04);
    }
    .nav-bar {
      height: var(--header-nav);
      display: flex; align-items: center; justify-content: space-between; gap: 24px;
      transition: height var(--ease);
    }
    .site-header.is-compact .nav-bar { height: 64px; }
    .logo {
      display: flex; align-items: baseline; gap: 8px; color: var(--ink); flex-shrink: 0;
    }
    .logo:hover { color: var(--moss); }
    .logo-mark {
      font-family: var(--font-serif);
      font-weight: 700; font-size: 15px;
      border: 1px solid var(--copper);
      color: var(--copper);
      width: 36px; height: 36px; line-height: 34px; text-align: center;
      border-radius: 50%;
      display: inline-flex; align-items: center; justify-content: center;
    }
    .logo-text {
      font-family: var(--font-serif);
      font-weight: 700; font-size: 20px; letter-spacing: .02em;
    }
    .nav-list {
      display: flex; align-items: center; gap: 4px 22px; list-style: none;
    }
    .nav-list a {
      color: var(--text);
      font-size: 15px;
      padding: 8px 0;
      position: relative;
      display: inline-block;
      min-height: 44px;
      line-height: 28px;
    }
    .nav-list a::after {
      content: "";
      position: absolute; left: 0; right: 0; bottom: 6px;
      height: 2px; background: var(--copper);
      transform: scaleX(0); transform-origin: left;
      transition: transform var(--ease);
    }
    .nav-list a:hover, .nav-list a.is-active { color: var(--ink); }
    .nav-list a:hover::after, .nav-list a.is-active::after { transform: scaleX(1); }
    .nav-toggle {
      display: none;
      width: 44px; height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      position: relative;
    }
    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink);
      content: "";
    }
    .nav-toggle span { top: 21px; }
    .nav-toggle span::before { top: -7px; }
    .nav-toggle span::after { top: 7px; }
    .nav-drawer {
      position: fixed; inset: 0; background: var(--ink-deep);
      color: var(--cream); z-index: 220;
      transform: translateX(100%);
      transition: transform .28s ease;
      padding: 28px 24px 48px;
      overflow: auto;
      display: none;
    }
    .nav-drawer.is-open { transform: none; }
    .drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
    .drawer-head .logo-text { color: var(--cream); font-size: 18px; }
    .drawer-close {
      width: 44px; height: 44px; color: var(--cream); border: 1px solid rgba(232,226,214,.3); border-radius: var(--radius);
    }
    .drawer-meta { font-size: 14px; color: #cfc6b6; display: grid; gap: 8px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid rgba(166,132,74,.25); }
    .drawer-meta a { color: var(--cream); }
    .drawer-nav { list-style: none; display: grid; gap: 4px; }
    .drawer-nav a {
      color: var(--cream); font-family: var(--font-serif); font-size: 22px;
      padding: 12px 0; display: block; min-height: 44px; border-bottom: 1px solid rgba(232,226,214,.08);
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 46px; padding: 0 22px;
      border-radius: 4px; font-size: 15px; font-weight: 600;
      transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
      text-decoration: none;
      letter-spacing: .02em;
    }
    .btn:active { transform: translateY(1px); }
    .btn--primary { background: var(--ink); color: var(--paper); }
    .btn--primary:hover { background: var(--moss); color: var(--paper); }
    .btn--ghost { background: transparent; color: var(--cream); border: 1px solid var(--copper); }
    .btn--ghost:hover { background: var(--copper); color: var(--ink-deep); }
    .btn--line { background: transparent; color: var(--ink); border: 1px solid var(--copper); }
    .btn--line:hover { background: var(--copper); color: var(--ink-deep); }
    .text-link {
      color: var(--moss);
      text-decoration: underline;
      text-underline-offset: 4px;
      text-decoration-thickness: 1px;
      font-size: 14px;
      font-weight: 600;
    }
    .text-link:hover { color: var(--copper); }
    .hero {
      position: relative;
      height: min(88vh, 820px);
      background: var(--ink-deep);
      overflow: hidden;
      color: var(--cream);
    }
    .hero-track { height: 100%; }
    .hero-slide {
      position: absolute; inset: 0;
      opacity: 0; visibility: hidden;
      transition: opacity .6s ease;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover;
      filter: saturate(.85) contrast(1.05);
    }
    .hero-mask {
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(20,26,24,.82) 0%, rgba(20,26,24,.58) 48%, rgba(20,26,24,.28) 100%),
        repeating-linear-gradient(0deg, rgba(232,226,214,.05) 0 1px, transparent 1px 48px),
        repeating-linear-gradient(90deg, rgba(232,226,214,.04) 0 1px, transparent 1px 72px);
    }
    .hero-content {
      position: relative; z-index: 2;
      height: 100%;
      display: flex; flex-direction: column; justify-content: center;
      max-width: 760px; padding: 40px 0 72px;
    }
    .brand-kicker {
      display: inline-flex; align-items: center; gap: 10px;
      color: #e2c48a; font-size: 13px; letter-spacing: .18em;
      text-transform: none; margin-bottom: 18px;
    }
    .brand-kicker::before {
      content: ""; width: 28px; height: 1px; background: var(--copper);
    }
    .hero h1, .hero-title {
      font-family: var(--font-serif);
      font-size: 40px; line-height: 1.25; font-weight: 700;
      color: #F7F1E6; margin-bottom: 18px; letter-spacing: -.03em;
    }
    .hero-lead {
      font-size: 16px; line-height: 1.8; color: #E8E2D6;
      max-width: 640px; margin-bottom: 28px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-nav {
      position: absolute; z-index: 3; inset: 0;
      pointer-events: none;
    }
    .hero-arrow {
      pointer-events: auto;
      position: absolute; top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px; border-radius: 50%;
      border: 1px solid rgba(232,226,214,.35);
      color: var(--cream);
      background: rgba(20,26,24,.35);
    }
    .hero-arrow:hover { background: var(--copper); color: var(--ink-deep); border-color: var(--copper); }
    .hero-arrow.prev { left: 18px; }
    .hero-arrow.next { right: 18px; }
    .hero-dots {
      pointer-events: auto;
      position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%);
      display: flex; gap: 10px;
    }
    .hero-dots button {
      width: 28px; height: 44px; display: grid; place-items: center;
    }
    .hero-dots button i {
      display: block; width: 10px; height: 10px; border-radius: 50%;
      background: rgba(232,226,214,.4);
    }
    .hero-dots button.is-active i { background: var(--copper); width: 22px; border-radius: 6px; }
    section { scroll-margin-top: 108px; }
    .section {
      padding: 100px 0;
    }
    .section--paper { background: var(--paper); }
    .section--card { background: var(--card); }
    .section--sand { background: var(--sand); }
    .section--dark { background: var(--ink-deep); color: var(--cream); }
    .section-kicker {
      color: var(--copper); font-size: 13px; letter-spacing: .12em; margin-bottom: 10px;
    }
    .section-title {
      font-size: 30px; line-height: 1.3; font-weight: 700; margin-bottom: 18px;
    }
    .section-title::after {
      content: ""; display: block; width: 40px; height: 2px; background: var(--copper); margin-top: 12px;
    }
    .section--dark .section-title { color: var(--cream); }
    .section-desc {
      color: var(--muted); max-width: 720px; font-size: 16px; line-height: 1.75;
    }
    .section--dark .section-desc { color: #cfc6b6; }
    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
    }
    .intro-photo {
      position: relative; border-radius: var(--radius); overflow: hidden;
      border: 1px solid var(--line);
    }
    .intro-photo img { width: 100%; height: 460px; object-fit: cover; }
    .intro-photo::after {
      content: ""; position: absolute; left: 16px; top: 16px; right: 16px; bottom: 16px;
      border: 1px solid rgba(166,132,74,.35); pointer-events: none;
    }
    .clause-list { list-style: none; margin-top: 22px; display: grid; gap: 14px; }
    .clause-list li {
      display: grid; grid-template-columns: 48px 1fr; gap: 12px;
      padding: 12px 0; border-top: 1px solid var(--line); line-height: 1.65;
    }
    .clause-num {
      font-family: var(--font-serif); color: var(--copper); font-weight: 700; font-size: 18px;
    }
    .cite {
      font-size: 13px; line-height: 1.6; color: var(--muted);
      background: var(--sand); padding: 12px 14px; border-left: 2px solid var(--copper); margin: 16px 0 8px;
    }
    .seal-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
    .seal {
      font-size: 12px; letter-spacing: .08em;
      border: 1px solid var(--copper); color: var(--ink);
      border-radius: 50px; padding: 6px 12px;
      min-height: 32px; display: inline-flex; align-items: center;
    }
    .matrix { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: start; }
    .matrix-sticky { position: sticky; top: 108px; }
    .matrix-grid {
      display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 14px;
    }
    .matrix-item {
      background: var(--card);
      border: 1px solid var(--line);
      border-left: 3px solid var(--copper);
      border-radius: 4px;
      padding: 20px 18px 16px;
      min-height: 168px;
      display: flex; flex-direction: column; gap: 8px;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .matrix-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--copper); }
    .matrix-item:nth-child(1) { grid-column: span 1; }
    .matrix-item h3 { font-size: 18px; line-height: 1.4; }
    .matrix-item p { color: var(--muted); font-size: 14px; line-height: 1.65; flex: 1; }
    .point-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
    }
    .point-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 4px;
      padding: 24px 22px 20px;
      min-height: 210px;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .point-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
    .idx {
      display: inline-flex; align-items: center; justify-content: center;
      width: 36px; height: 36px; border-radius: 50%;
      border: 1px solid var(--copper); color: var(--copper);
      font-family: var(--font-serif); font-size: 13px; margin-bottom: 14px;
    }
    .point-card h3 { font-size: 18px; line-height: 1.4; margin-bottom: 8px; }
    .point-card p { color: var(--muted); font-size: 14px; line-height: 1.65; }
    .point-card::after {
      content: ""; display: block; height: 1px; background: var(--line); margin-top: 16px;
    }
    .product-grid {
      display: grid; grid-template-columns: 1.15fr .92fr .92fr; gap: 18px; align-items: stretch;
    }
    .product-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 5px; overflow: hidden;
      display: flex; flex-direction: column;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .product-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .product-card--feature {
      transform: translateY(-14px);
      border-color: var(--copper);
    }
    .product-card--feature:hover { transform: translateY(-16px); }
    .product-card img { width: 100%; height: 190px; object-fit: cover; }
    .product-card--feature img { height: 220px; }
    .product-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .product-body h3 { font-size: 20px; line-height: 1.4; }
    .scene-list { list-style: none; color: var(--muted); font-size: 14px; line-height: 1.65; }
    .scene-list li { padding-left: 14px; position: relative; margin-bottom: 6px; }
    .scene-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 1px; background: var(--copper); }
    .product-body .btn { margin-top: auto; width: 100%; }
    .timeline-wrap { overflow: hidden; }
    .timeline {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 8px; right: 8px; top: 23px; height: 1px; background: var(--copper-soft);
    }
    .t-step {
      position: relative; padding-top: 8px;
    }
    .t-num {
      width: 32px; height: 32px; border-radius: 50%;
      background: var(--copper); color: var(--ink-deep);
      font-family: var(--font-serif); font-size: 13px; font-weight: 700;
      display: grid; place-items: center; margin-bottom: 14px; position: relative; z-index: 1;
    }
    .t-step h3 { font-size: 16px; line-height: 1.4; margin-bottom: 8px; }
    .t-step p { font-size: 14px; color: var(--muted); line-height: 1.65; }
    .dark-split {
      display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
      position: relative;
    }
    .dark-split::before {
      content: ""; position: absolute; inset: 0;
      background:
        repeating-linear-gradient(0deg, rgba(232,226,214,.035) 0 1px, transparent 1px 56px),
        repeating-linear-gradient(90deg, rgba(232,226,214,.03) 0 1px, transparent 1px 80px);
      pointer-events: none;
    }
    .principle { list-style: none; margin-top: 20px; display: grid; gap: 14px; }
    .principle li {
      padding: 12px 0; border-top: 1px solid rgba(166,132,74,.25);
      color: #d8d0c3; font-size: 15px; line-height: 1.65;
    }
    .case-brief {
      border: 1px solid rgba(166,132,74,.25);
      padding: 22px 22px 18px; margin-bottom: 14px; border-radius: 4px;
      background: rgba(255,255,255,.02);
    }
    .case-brief .tag { color: #e2c48a; font-size: 12px; letter-spacing: .08em; }
    .case-brief h3 { color: var(--cream); font-size: 18px; margin: 8px 0; }
    .case-brief p { color: #cfc6b6; font-size: 14px; }
    .case-wall {
      display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px;
    }
    .case-tile {
      position: relative; overflow: hidden; border-radius: 4px; min-height: 220px;
      border: 1px solid var(--line); padding: 0; text-align: left; color: inherit;
      display: block; width: 100%;
    }
    .case-tile img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; transition: transform .4s ease; }
    .case-tile:hover img { transform: scale(1.04); }
    .case-tile--lg { grid-column: span 6; min-height: 340px; }
    .case-tile--lg img { min-height: 340px; }
    .case-tile--sm { grid-column: span 3; }
    .case-cap {
      position: absolute; left: 0; right: 0; bottom: 0;
      padding: 48px 16px 16px;
      background: linear-gradient(180deg, transparent, rgba(20,26,24,.82));
      color: var(--cream);
    }
    .case-cap .tag {
      display: inline-block; font-size: 12px; border: 1px solid rgba(166,132,74,.7);
      color: #e2c48a; padding: 2px 8px; margin-bottom: 8px; border-radius: 2px;
    }
    .case-cap h3 { color: var(--cream); font-size: 16px; line-height: 1.4; font-weight: 600; }
    .overlay {
      position: fixed; inset: 0; background: rgba(20,26,24,.72);
      z-index: 300; display: none; align-items: center; justify-content: center; padding: 24px;
    }
    .overlay.is-open { display: flex; }
    .overlay-card {
      width: min(640px, 100%);
      background: var(--card);
      border-radius: 6px;
      border: 1px solid var(--line);
      padding: 28px 26px 24px;
      max-height: 86vh; overflow: auto;
      position: relative;
    }
    .overlay-close {
      position: absolute; right: 12px; top: 12px; width: 44px; height: 44px;
      border: 1px solid var(--line); border-radius: 4px; color: var(--text);
    }
    .story-grid {
      display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px;
    }
    .story-main {
      display: grid; grid-template-columns: 1fr 1.1fr; background: var(--card);
      border: 1px solid var(--line); border-radius: 5px; overflow: hidden;
    }
    .story-main img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
    .story-copy { padding: 28px 26px; }
    .story-copy h3 { font-size: 22px; margin: 8px 0 12px; }
    .side-stories { display: grid; gap: 14px; }
    .side-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 20px 18px;
    }
    .side-card h3 { font-size: 17px; margin: 6px 0 8px; }
    .muted { color: var(--muted); }
    .tiny { font-size: 13px; line-height: 1.6; color: var(--muted); }
    .stats {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
      border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    }
    .stat {
      padding: 18px 20px; text-align: left;
      border-right: 1px solid var(--line);
    }
    .stat:last-child { border-right: 0; }
    .stat b {
      font-family: var(--font-serif); font-size: 36px; line-height: 1.2; color: var(--ink); display: block;
    }
    .stat span { display: block; margin-top: 6px; color: var(--text); font-weight: 600; }
    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
    .quote-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 4px;
      padding: 24px 22px; box-shadow: var(--shadow);
    }
    .quote-card:nth-child(2) { margin-top: 28px; }
    .quote-card:nth-child(3) { margin-top: 56px; }
    .quote-card blockquote {
      margin: 0 0 16px; font-size: 15px; line-height: 1.7; color: var(--text);
      font-family: var(--font-serif);
    }
    .quote-meta { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 12px; }
    .insight-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; }
    .insight-feature {
      display: grid; grid-template-rows: 240px 1fr; background: var(--card);
      border: 1px solid var(--line); border-radius: 5px; overflow: hidden;
    }
    .insight-feature img { width: 100%; height: 240px; object-fit: cover; }
    .insight-feature .body, .insight-list a .body { padding: 20px 22px 22px; }
    .insight-list { display: grid; gap: 12px; }
    .insight-list a {
      display: grid; grid-template-columns: 120px 1fr; gap: 14px;
      background: var(--card); border: 1px solid var(--line); border-radius: 4px; overflow: hidden;
      color: inherit;
    }
    .insight-list a:hover { border-color: var(--copper); }
    .insight-list img { width: 120px; height: 100%; object-fit: cover; min-height: 112px; }
    .date { font-size: 12px; color: var(--copper); letter-spacing: .06em; }
    .insight-feature h3, .insight-list h3 { font-size: 18px; line-height: 1.4; margin: 6px 0 8px; }
    .partner-grid {
      display: grid; grid-template-columns: repeat(4, 1fr);
      border: 1px solid var(--line);
    }
    .partner-item {
      padding: 22px 16px; text-align: center; color: var(--muted);
      border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
      font-size: 14px; filter: grayscale(1);
    }
    .partner-item:nth-child(4n) { border-right: 0; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); background: var(--card); border-radius: 4px; overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; padding: 16px 52px 16px 18px;
      min-height: 56px; position: relative; font-weight: 600; color: var(--text);
    }
    .faq-item button .mark {
      position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
      width: 18px; height: 18px;
    }
    .faq-item button .mark::before,
    .faq-item button .mark::after {
      content: ""; position: absolute; background: var(--copper);
    }
    .faq-item button .mark::before { left: 0; right: 0; height: 2px; top: 8px; }
    .faq-item button .mark::after { top: 0; bottom: 0; width: 2px; left: 8px; transition: transform var(--ease); }
    .faq-item.is-open button .mark::after { transform: scaleY(0); }
    .faq-panel {
      display: none; padding: 0 18px 18px; color: var(--muted);
      background: var(--sand); font-size: 15px; line-height: 1.7;
    }
    .faq-item.is-open .faq-panel { display: block; }
    .guarantee {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    }
    .g-item {
      background: var(--card); border: 1px solid var(--line); border-radius: 4px;
      padding: 22px 18px; min-height: 150px;
    }
    .g-icon {
      width: 36px; height: 36px; margin-bottom: 12px;
      border: 1px solid var(--copper); border-radius: 50%;
      display: grid; place-items: center;
    }
    .g-icon svg { width: 18px; height: 18px; stroke: var(--ink); fill: none; stroke-width: 1.6; }
    .g-item h3 { font-size: 16px; margin-bottom: 8px; }
    .g-item p { font-size: 13px; color: var(--muted); line-height: 1.65; }
    .contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
    .form {
      background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 26px 24px;
    }
    .form-row { margin-bottom: 14px; }
    .form-row label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text); }
    .form-row input, .form-row select, .form-row textarea {
      width: 100%; background: var(--white); border: 1px solid var(--line);
      border-radius: 4px; min-height: 44px; padding: 8px 12px; color: var(--text);
    }
    .form-row textarea { min-height: 110px; resize: vertical; }
    .form-row input:focus, .form-row select:focus, .form-row textarea:focus {
      outline: none; border-color: var(--ink); box-shadow: 0 0 0 2px rgba(27,58,50,.18);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .form-note { font-size: 13px; color: var(--muted); margin-top: 12px; line-height: 1.65; }
    .form-msg {
      padding: 10px 12px; border-radius: 4px; margin-bottom: 14px; font-size: 14px;
      border: 1px solid var(--line); background: var(--sand);
    }
    .form-msg.ok { border-color: var(--moss); color: var(--ink); }
    .form-msg.err { border-color: var(--copper); color: var(--danger); }
    .contact-aside h2 { color: var(--cream); }
    .contact-meta { margin-top: 22px; display: grid; gap: 10px; color: #cfc6b6; font-size: 15px; }
    .contact-meta a { color: var(--cream); }
    .site-footer {
      background: var(--ink-deep); color: #cfc6b6; padding: 56px 0 24px; font-size: 14px; line-height: 1.7;
    }
    .footer-grid { display: grid; grid-template-columns: 1.3fr .9fr .9fr 1fr; gap: 32px; margin-bottom: 36px; }
    .site-footer h3 { color: var(--cream); font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #d8d0c3; }
    .site-footer a:hover { color: #e2c48a; }
    .footer-nav { list-style: none; display: grid; gap: 6px; }
    .copyright {
      border-top: 1px solid rgba(166,132,74,.25); padding-top: 16px;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
      font-size: 13px; color: #9A9488;
    }
    .privacy {
      margin-top: 18px; border-top: 1px solid rgba(166,132,74,.25); padding-top: 16px; font-size: 13px; color: #9A9488;
    }
    @media (max-width: 1024px) {
      .hero h1, .hero-title { font-size: 34px; }
      .matrix { grid-template-columns: 1fr; }
      .matrix-sticky { position: static; }
      .matrix-grid { grid-template-columns: 1fr 1fr; }
      .product-grid { grid-template-columns: 1fr 1fr; }
      .product-card--feature { transform: none; grid-column: span 2; }
      .intro-grid, .dark-split, .story-grid, .insight-layout, .contact-grid { grid-template-columns: 1fr; }
      .story-main { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .case-tile--lg { grid-column: span 12; }
      .case-tile--sm { grid-column: span 6; }
    }
    @media (max-width: 768px) {
      .topbar { display: none; }
      .nav-list { display: none; }
      .nav-toggle { display: inline-block; }
      .nav-drawer { display: block; }
      .hero { height: 68vh; min-height: 560px; }
      .hero h1, .hero-title { font-size: 28px; }
      .section { padding: 64px 0; }
      .section-title { font-size: 24px; }
      .point-grid, .guarantee, .stats, .quote-grid, .partner-grid { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr; }
      .timeline::before { left: 15px; right: auto; width: 1px; top: 8px; bottom: 8px; height: auto; }
      .quote-card:nth-child(2), .quote-card:nth-child(3) { margin-top: 0; }
      .form-grid { grid-template-columns: 1fr; }
      .stat { border-right: 0; border-bottom: 1px solid var(--line); }
      .product-grid { grid-template-columns: 1fr; }
      .product-card--feature { grid-column: auto; }
      .insight-list a { grid-template-columns: 1fr; }
      .insight-list img { width: 100%; height: 140px; }
    }
    @media (max-width: 520px) {
      .point-grid, .guarantee, .stats, .quote-grid, .partner-grid, .matrix-grid { grid-template-columns: 1fr; }
      .case-tile--sm { grid-column: span 12; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-arrow { display: none; }
      .copyright { flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }

/* roulang page: index */
:root{
  --pine:#1B3A32;
  --pine-deep:#142924;
  --moss:#2F5D50;
  --copper:#A6844A;
  --copper-deep:#8A6B38;
  --paper:#F3EFE6;
  --card:#FAF8F4;
  --sand:#E7E1D6;
  --ink:#1C1917;
  --muted:#5A554C;
  --disabled:#9A9488;
  --line:#D4CDBF;
  --dark:#141A18;
  --dark-text:#E8E2D6;
  --dark-line:rgba(166,132,74,.25);
  --radius:5px;
  --shadow:0 8px 24px rgba(20,26,24,.06);
  --shadow-hover:0 10px 28px rgba(20,26,24,.10);
  --header-top:42px;
  --header-main:76px;
  --header-offset:118px;
  --container:1200px;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;
}
*,*:before,*:after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--moss);text-decoration:none}
a:hover{color:var(--copper-deep)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{font-family:var(--serif);font-weight:650;letter-spacing:-.02em;color:var(--ink);margin:0}
p{margin:0 0 .9em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.skip-link{position:absolute;left:16px;top:-40px;z-index:400;background:var(--copper);color:var(--dark);padding:8px 14px;border-radius:var(--radius)}
.skip-link:focus{top:8px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto;max-width:1280px}
.section{padding:96px 0;position:relative}
.section--sand{background:var(--sand)}
.section--paper{background:var(--paper)}
.section--card{background:var(--card)}
.section--dark{background:var(--dark);color:var(--dark-text)}
.section--dark h2,.section--dark h3{color:var(--dark-text)}
.kicker{font-size:13px;letter-spacing:.12em;color:var(--copper-deep);font-weight:600;margin-bottom:10px}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{color:var(--muted);line-height:1.75}
h2{font-size:30px;line-height:1.3;font-weight:650}
h2 .rule{display:block;width:40px;height:2px;background:var(--copper);margin-top:10px}
h3{font-size:19px;line-height:1.4;font-weight:650}
.lede{font-size:16px;color:var(--muted);line-height:1.75}
.fine{font-size:13px;line-height:1.6;color:var(--muted)}
.site-header{position:sticky;top:0;z-index:80;background:var(--pine)}
.topbar{height:var(--header-top);display:flex;align-items:center;border-bottom:1px solid rgba(243,239,230,.14);color:var(--paper);font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar a{color:var(--paper)}
.topbar a:hover{color:#F6E7C6}
.topbar-right{display:flex;align-items:center;gap:18px}
.navbar{height:var(--header-main);display:flex;align-items:center;transition:height .2s ease}
.site-header.is-compact{box-shadow:0 8px 24px rgba(20,26,24,.18)}
.site-header.is-compact .navbar{height:64px}
.navbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;color:var(--paper);min-height:44px}
.logo-mark{width:36px;height:36px;border:1px solid var(--copper);border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-size:13px;color:#F6E7C6}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text small{font-size:11px;letter-spacing:.18em;color:#C9B48A}
.logo-text strong{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--paper)}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none}
.nav-list a{color:rgba(243,239,230,.88);padding:10px 11px;font-size:14px;position:relative;display:inline-flex;align-items:center;min-height:44px}
.nav-list a:hover,.nav-list a.is-active{color:#F6E7C6}
.nav-list a.is-active:after{content:"";position:absolute;left:11px;right:11px;bottom:6px;height:2px;background:var(--copper)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid rgba(243,239,230,.25);background:transparent;color:var(--paper);border-radius:var(--radius)}
.nav-toggle span{display:block;width:18px;height:1.5px;background:currentColor;margin:4px auto;transition:.2s}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:4px;border:1px solid transparent;font-size:15px;line-height:1;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s}
.btn:focus-visible,.nav-list a:focus-visible,.chip:focus-visible,.pager:focus-visible,.dot:focus-visible,.faq-q:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.logo:focus-visible{
  outline:2px solid var(--copper);outline-offset:2px
}
.btn-primary{background:var(--pine);color:var(--paper);border-color:var(--pine)}
.btn-primary:hover{background:var(--moss);border-color:var(--moss)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:#F6E7C6;border-color:var(--copper)}
.btn-ghost:hover{background:var(--copper);color:var(--dark)}
.btn-line{background:transparent;color:var(--pine);border-color:var(--copper)}
.btn-line:hover{background:var(--copper);color:var(--dark)}
.text-link{color:var(--pine);text-decoration:underline;text-underline-offset:4px}
.text-link:hover{color:var(--copper-deep)}
.hero{position:relative;height:min(84vh,820px);min-height:560px;overflow:hidden;color:var(--dark-text);background:var(--dark)}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s ease}
.slide.is-on{opacity:1;visibility:visible;z-index:1}
.slide-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.slide-mask{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(20,26,24,.86) 0%,rgba(20,26,24,.62) 46%,rgba(20,26,24,.28) 100%),
  linear-gradient(rgba(166,132,74,.10) 1px,transparent 1px),
  linear-gradient(90deg,rgba(166,132,74,.07) 1px,transparent 1px);
  background-size:auto,44px 44px,44px 44px
}
.hero-copy{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;padding:48px 0 132px;width:min(var(--container),calc(100% - 48px));margin:0 auto;max-width:760px;margin-left:max(24px,calc((100% - var(--container))/2))}
.hero h1,.hero-title{font-family:var(--serif);font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.03em;color:#F4EEE4;max-width:18em;margin:0 0 18px}
.hero-lead{font-size:16px;line-height:1.75;color:#D8D1C4;max-width:40em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-search-wrap{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:0 24px 28px}
.hero-search-box{width:min(var(--container),100%);margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:14px 16px;box-shadow:var(--shadow)}
.hero-search{display:flex;gap:10px}
.hero-search input{flex:1;min-height:46px;border:1px solid var(--line);background:#fff;border-radius:4px;padding:0 14px;color:var(--ink)}
.hero-search input:focus{border-color:var(--pine);box-shadow:0 0 0 2px var(--pine);outline:none}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;list-style:none}
.chip{display:inline-flex;align-items:center;min-height:36px;padding:0 12px;border:1px solid var(--line);border-radius:99px;color:var(--muted);background:var(--paper);font-size:13px}
.chip:hover{border-color:var(--copper);color:var(--pine)}
.hero-nav{position:absolute;z-index:4;right:max(24px,calc((100% - var(--container))/2));bottom:118px;display:flex;gap:8px}
.pager{width:44px;height:44px;border-radius:4px;border:1px solid rgba(232,226,214,.35);background:rgba(20,26,24,.35);color:var(--dark-text)}
.pager:hover{background:var(--copper);color:var(--dark);border-color:var(--copper)}
.dots{position:absolute;z-index:4;left:max(24px,calc((100% - var(--container))/2));bottom:118px;display:flex;gap:8px}
.dot{width:22px;height:22px;border:0;background:transparent;padding:0;display:grid;place-items:center}
.dot i{width:8px;height:8px;border-radius:50%;background:rgba(232,226,214,.35);display:block}
.dot.is-on i{background:var(--copper);width:10px;height:10px}
.intro-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.intro-visual{position:relative}
.intro-visual img{width:100%;height:520px;object-fit:cover;border-radius:6px;border:1px solid var(--line)}
.stamp{position:absolute;right:-14px;bottom:-14px;width:92px;height:92px;border:1.5px solid var(--copper);border-radius:50%;display:grid;place-items:center;background:rgba(250,248,244,.92);color:var(--copper-deep);font-family:var(--serif);font-size:13px;letter-spacing:.12em;text-align:center;line-height:1.3;transform:rotate(-8deg)}
.clauses{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.clause{display:grid;grid-template-columns:48px 1fr;gap:12px;padding-top:12px;border-top:1px solid var(--line)}
.clause b{font-family:var(--serif);color:var(--copper-deep);font-size:18px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;list-style:none}
.badge{border:1px solid var(--copper);color:var(--pine);padding:6px 12px;border-radius:99px;font-size:12px;letter-spacing:.04em;background:rgba(166,132,74,.08)}
.matrix{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start}
.matrix-side{position:sticky;top:calc(var(--header-offset) + 16px)}
.matrix-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.svc{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--pine);border-radius:4px;padding:18px 18px 16px;min-height:100%;transition:transform .2s,box-shadow .2s,border-color .2s}
.svc:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-left-color:var(--copper)}
.svc h3{margin-bottom:8px}
.svc p{color:var(--muted);font-size:14px;line-height:1.7;margin-bottom:12px}
.points-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.point{background:var(--card);border:1px solid var(--line);border-radius:5px;padding:22px 20px 18px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.point:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.num{display:inline-flex;width:36px;height:36px;border-radius:50%;border:1px solid var(--copper);color:var(--copper-deep);align-items:center;justify-content:center;font-family:var(--serif);font-size:14px;margin-bottom:12px}
.point p{color:var(--muted);font-size:14px;line-height:1.7;margin:8px 0 0}
.point-line{height:1px;background:var(--line);margin-top:16px}
.products-grid{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:auto auto;gap:16px}
.product{background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.product:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.product--lead{grid-row:1 / span 2}
.product img{width:100%;height:190px;object-fit:cover}
.product--lead img{height:280px}
.product-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.product ul{padding-left:18px;color:var(--muted);font-size:14px;line-height:1.7}
.product .btn{margin-top:auto;align-self:flex-start}
.tag{display:inline-block;font-size:12px;color:var(--copper-deep);border:1px solid var(--copper);padding:2px 8px;border-radius:99px}
.flow{background:
  linear-gradient(180deg,rgba(231,225,214,.65),rgba(243,239,230,.9)),
  repeating-linear-gradient(90deg,rgba(166,132,74,.07) 0 1px,transparent 1px 28px);
}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative}
.steps:before{content:"";position:absolute;left:8%;right:8%;top:23px;height:1px;background:rgba(166,132,74,.35)}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:5px;padding:18px 14px 16px;text-align:left}
.step-no{width:32px;height:32px;border-radius:50%;background:var(--copper);color:#141A18;display:grid;place-items:center;font-family:var(--serif);font-size:13px;margin-bottom:10px;position:relative;z-index:1}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;line-height:1.65;color:var(--muted)}
.dark-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.dark-grid .rule{background:var(--copper)}
.principles{list-style:none;margin-top:22px}
.principles li{padding:12px 0;border-top:1px solid var(--dark-line);font-size:15px;line-height:1.65;color:#D8D1C4}
.case-briefs{display:flex;flex-direction:column;gap:16px}
.case-brief{border:1px solid var(--dark-line);border-radius:5px;padding:18px}
.case-brief .meta{font-size:12px;color:var(--copper);letter-spacing:.08em;margin-bottom:8px}
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:170px;gap:14px}
.wall-item{position:relative;border-radius:5px;overflow:hidden;border:1px solid var(--line);cursor:pointer;padding:0;background:#000;color:inherit;text-align:left}
.wall-item img{width:100%;height:100%;object-fit:cover;transform:scale(1.02);transition:transform .35s}
.wall-item:hover img{transform:scale(1.07)}
.wall-item:nth-child(1),.wall-item:nth-child(2){grid-column:span 2;grid-row:span 2}
.wall-cap{position:absolute;inset:auto 0 0;padding:14px 14px 12px;background:linear-gradient(transparent,rgba(20,26,24,.82));color:#F4EEE4}
.wall-cap span{display:inline-block;font-size:12px;border:1px solid rgba(166,132,74,.7);color:#E6C98A;padding:1px 7px;border-radius:99px;margin-bottom:6px}
.wall-cap strong{display:block;font-family:var(--serif);font-size:16px;line-height:1.35}
.overlay{position:fixed;inset:0;background:rgba(20,26,24,.62);z-index:120;display:none;align-items:center;justify-content:center;padding:24px}
.overlay.is-on{display:flex}
.overlay-card{width:min(680px,100%);background:var(--card);border:1px solid var(--line);border-radius:6px;padding:28px;position:relative;max-height:86vh;overflow:auto}
.overlay-close{position:absolute;right:12px;top:12px;width:44px;height:44px;border:0;background:transparent;font-size:22px;color:var(--muted)}
.stories{display:grid;grid-template-columns:1.4fr .8fr;gap:16px}
.story-main{display:grid;grid-template-columns:.9fr 1.1fr;background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.story-main img{width:100%;height:100%;object-fit:cover;min-height:280px}
.story-main div,.story-side article{padding:24px}
.story-side{display:flex;flex-direction:column;gap:16px}
.story-side article{background:var(--card);border:1px solid var(--line);border-radius:6px}
.stats{background:var(--pine-deep);color:var(--dark-text);padding:64px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{border-left:1px solid var(--dark-line);padding:8px 0 8px 20px}
.stat b{display:block;font-family:var(--serif);font-size:36px;line-height:1.1;color:#F4EEE4}
.stat span{display:block;margin-top:6px;color:#C9C2B6}
.stat small{display:block;margin-top:6px;font-size:12px;color:#9A9488;line-height:1.6}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.quote{background:var(--card);border:1px solid var(--line);border-radius:5px;padding:24px 22px;box-shadow:var(--shadow)}
.quote:nth-child(2){margin-top:28px}
.quote:nth-child(3){margin-top:12px}
.quote p{font-family:var(--serif);font-size:16px;line-height:1.7}
.quote footer{margin-top:16px;font-size:13px;color:var(--muted)}
.insight-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;gap:14px}
.insight{background:var(--card);border:1px solid var(--line);border-radius:5px;padding:0;overflow:hidden;display:flex;flex-direction:column}
.insight img{height:150px;width:100%;object-fit:cover}
.insight-body{padding:16px 16px 18px}
.insight time{font-size:12px;color:var(--copper-deep)}
.insight h3{font-size:16px;margin:6px 0 8px}
.insight p{font-size:13px;line-height:1.7;color:var(--muted)}
.insight--main img{height:220px}
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.network-grid li{list-style:none;background:var(--card);padding:18px 16px;color:var(--muted);font-size:14px;text-align:center;filter:grayscale(.15)}
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{border:1px solid var(--line);background:var(--card);border-radius:5px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:var(--card);border:0;padding:16px 48px 16px 18px;min-height:52px;position:relative;font-size:16px;color:var(--ink)}
.faq-q:after{content:"";position:absolute;right:20px;top:50%;width:12px;height:12px;border-right:1.5px solid var(--pine);border-bottom:1.5px solid var(--pine);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq-q[aria-expanded="true"]{background:var(--sand)}
.faq-q[aria-expanded="true"]:after{transform:translateY(-20%) rotate(225deg)}
.faq-a{display:none;padding:0 18px 16px;background:var(--sand);color:var(--muted);font-size:15px;line-height:1.7}
.faq-item.is-open .faq-a{display:block}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.assure{border:1px solid var(--line);background:var(--card);border-radius:5px;padding:22px 18px}
.assure svg{width:28px;height:28px;stroke:var(--pine);fill:none;stroke-width:1.6;margin-bottom:10px}
.assure p{font-size:14px;color:var(--muted);line-height:1.65;margin-top:6px}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.form{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:24px}
.field{margin-bottom:14px}
.field label{display:block;margin-bottom:6px;font-size:14px;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:4px;padding:10px 12px;color:var(--ink);min-height:44px}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--pine);box-shadow:0 0 0 2px var(--pine);outline:none}
.form-note{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.65}
.alert{padding:12px 14px;border-radius:4px;margin-bottom:14px;font-size:14px}
.alert-ok{background:#e8efe8;color:var(--pine);border:1px solid #c5d6c8}
.alert-err{background:#f7eee4;color:#7a4a1e;border:1px solid #e0c8a6}
.site-footer{background:var(--dark);color:#C9C2B6;padding:64px 0 28px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:28px}
.site-footer a{color:#E8E2D6}
.site-footer a:hover{color:#E6C98A}
.foot-brand strong{display:block;font-family:var(--serif);font-size:20px;color:#F4EEE4;margin-bottom:10px}
.foot-grid h3{color:#F4EEE4;font-size:15px;margin-bottom:12px}
.foot-grid ul{list-style:none}
.foot-grid li{margin:0 0 8px}
.legal-mini{margin-top:28px;padding-top:18px;border-top:1px solid var(--dark-line);font-size:13px;line-height:1.7;color:#9A9488}
.copy{margin-top:18px;color:#8A857C;font-size:13px}
.nav-drawer{position:fixed;inset:0;background:#141A18;z-index:90;transform:translateX(100%);transition:transform .28s ease;padding:24px;overflow:auto;display:flex;flex-direction:column;gap:18px}
.nav-drawer.is-open{transform:none}
.drawer-top{display:flex;justify-content:space-between;align-items:center;color:var(--dark-text)}
.drawer-close{width:44px;height:44px;border:1px solid rgba(232,226,214,.3);background:transparent;color:var(--dark-text);border-radius:4px}
.drawer-links{list-style:none;display:flex;flex-direction:column}
.drawer-links a{color:#E8E2D6;padding:12px 0;border-bottom:1px solid var(--dark-line);min-height:44px;display:flex;align-items:center}
.drawer-meta{color:#C9C2B6;font-size:14px;line-height:1.8}
body.menu-lock{overflow:hidden}
@media (max-width:1024px){
  .hero h1,.hero-title{font-size:34px}
  .matrix{grid-template-columns:1fr}
  .matrix-side{position:static}
  .points-grid,.assure-grid,.stats-grid,.network-grid{grid-template-columns:repeat(2,1fr)}
  .insight-grid{grid-template-columns:1fr 1fr}
  .insight--main{grid-column:1/-1}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .wall-item:nth-child(1),.wall-item:nth-child(2){grid-column:span 1;grid-row:span 1}
  .dark-grid,.intro-grid,.contact-grid,.stories,.story-main,.products-grid,.foot-grid{grid-template-columns:1fr}
  .product--lead{grid-row:auto}
  .steps{grid-template-columns:repeat(3,1fr)}
  .steps:before{display:none}
  .nav-list{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;flex-direction:column}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .container{width:calc(100% - 32px)}
  .hero{height:auto;min-height:68vh}
  .hero-copy{padding:36px 0 180px;margin-left:16px;width:calc(100% - 32px)}
  .hero h1,.hero-title{font-size:28px}
  .hero-search{flex-direction:column}
  .dots,.hero-nav{bottom:168px}
  .intro-visual img{height:280px}
  .stamp{right:8px;bottom:8px;width:76px;height:76px;font-size:12px}
  .matrix-grid,.quotes,.products-grid{grid-template-columns:1fr}
  .quote:nth-child(2),.quote:nth-child(3){margin-top:0}
  .steps{grid-template-columns:1fr}
  .topbar-right .hide-sm{display:none}
  h2{font-size:24px}
}
@media (max-width:520px){
  .points-grid,.assure-grid,.stats-grid,.network-grid,.insight-grid,.wall{grid-template-columns:1fr}
  .hero-actions,.topbar .container{flex-wrap:wrap}
  .stat{border-left:0;border-top:1px solid var(--dark-line);padding-left:0}
  .product img,.product--lead img{height:180px}
  .hero-nav{right:16px}
  .dots{left:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation:none!important;transition:none!important}
}