/* roulang page: index */
:root {
      --ink: #142522;
      --ink-soft: #3d514c;
      --muted: #71807b;
      --paper: #f8f9f7;
      --white: #fff;
      --line: #e3e9e5;
      --green: #167a60;
      --green-dark: #0c5d49;
      --mint: #dff2e9;
      --coral: #e36d50;
      --yellow: #f0c65b;
      --lavender: #ece8f7;
      --radius: 8px;
      --radius-lg: 16px;
      --shadow: 0 12px 32px rgba(20, 37, 34, .08);
      --container: 1160px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "DM Sans", "Noto Sans SC", sans-serif;
      font-size: 15px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 3px solid rgba(22, 122, 96, .34);
      outline-offset: 3px;
    }
    .container-wide { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--green);
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0;
      text-transform: uppercase;
    }
    .eyebrow::before { width: 7px; height: 7px; border-radius: 50%; background: var(--coral); content: ""; }
    .section-heading { max-width: 700px; margin-bottom: 30px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(25px, 3vw, 36px); font-weight: 800; line-height: 1.25; }
    .section-heading p { max-width: 670px; margin: 0; color: var(--muted); font-size: 14px; }
    .section { padding: 76px 0; }
    .section-tint { background: #eef4f0; }
    .section-white { background: var(--white); }
    .section-dark { color: var(--white); background: #142d28; }
    .section-dark .section-heading p { color: #b6c7c0; }

    .site-header {
      position: sticky;
      z-index: 1000;
      top: 0;
      border-bottom: 1px solid rgba(20, 37, 34, .08);
      background: rgba(248, 249, 247, .94);
      backdrop-filter: blur(16px);
    }
    .navbar { min-height: 76px; padding: 0; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--ink);
      font-weight: 800;
      font-size: 16px;
      white-space: nowrap;
    }
    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      place-items: center;
      border-radius: 10px;
      color: #fff;
      background: linear-gradient(140deg, #199572, #0e624c);
      box-shadow: 0 5px 12px rgba(22, 122, 96, .22);
    }
    .brand-mark svg { width: 17px; height: 17px; }
    .navbar-nav { gap: 7px; }
    .nav-link {
      position: relative;
      padding: 10px 14px !important;
      border-radius: 6px;
      color: var(--ink-soft);
      font-size: 13px;
      font-weight: 600;
      transition: color .2s ease, background .2s ease;
    }
    .nav-link:hover, .nav-link.active { color: var(--green-dark); background: #e8f2ed; }
    .nav-link.active::after {
      position: absolute;
      right: 14px;
      bottom: 3px;
      left: 14px;
      height: 2px;
      border-radius: 2px;
      background: var(--green);
      content: "";
    }
    .nav-action {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 16px;
      border: 1px solid var(--line);
      border-radius: 6px;
      color: var(--ink);
      background: var(--white);
      font-size: 13px;
      font-weight: 700;
      transition: border-color .2s, color .2s, transform .2s;
    }
    .nav-action:hover { transform: translateY(-1px); border-color: var(--green); color: var(--green); }

    .hero {
      position: relative;
      min-height: 540px;
      display: flex;
      align-items: end;
      overflow: hidden;
      color: white;
      background: #213733 url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=2000&q=90") center 46% / cover no-repeat;
    }
    .hero::before {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(12, 32, 28, .87) 0%, rgba(12, 32, 28, .65) 46%, rgba(12, 32, 28, .1) 100%),
                  linear-gradient(0deg, rgba(12, 32, 28, .42), transparent 55%);
      content: "";
    }
    .hero-inner { position: relative; z-index: 1; width: 100%; padding: 68px 0 42px; }
    .hero-copy { max-width: 780px; }
    .hero .eyebrow { color: #b9efd8; }
    .hero h1 { max-width: 750px; margin: 14px 0 17px; font-size: clamp(34px, 5vw, 58px); font-weight: 800; line-height: 1.2; }
    .hero-copy > p { max-width: 720px; margin: 0; color: rgba(255,255,255,.84); font-size: 15px; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 25px; }
    .btn-main, .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 19px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 800;
      transition: transform .2s, background .2s, border-color .2s;
    }
    .btn-main { color: #fff; background: var(--green); }
    .btn-main:hover { transform: translateY(-2px); color: #fff; background: #1a8d6e; }
    .btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.08); }
    .btn-ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.16); }
    .hero-data {
      display: flex;
      flex-wrap: wrap;
      gap: 0;
      margin-top: 38px;
      border-top: 1px solid rgba(255,255,255,.25);
      padding-top: 18px;
    }
    .hero-stat { min-width: 140px; padding: 0 25px; border-right: 1px solid rgba(255,255,255,.2); }
    .hero-stat:first-child { padding-left: 0; }
    .hero-stat:last-child { border: 0; }
    .hero-stat strong { display: block; color: #fff; font-size: 22px; line-height: 1.25; }
    .hero-stat span { color: rgba(255,255,255,.72); font-size: 11px; }

    .trust-band { padding: 18px 0; border-bottom: 1px solid var(--line); background: #fff; }
    .trust-inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .trust-title { color: var(--muted); font-size: 12px; font-weight: 700; }
    .trust-items { display: flex; flex-wrap: wrap; gap: 10px 26px; }
    .trust-item { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 12px; font-weight: 700; }
    .trust-dot { display: grid; width: 21px; height: 21px; place-items: center; border-radius: 50%; color: var(--green); background: var(--mint); font-size: 11px; }

    .story-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 64px; }
    .story-copy h2 { margin: 9px 0 16px; font-size: 35px; font-weight: 800; line-height: 1.3; }
    .story-copy p { margin: 0 0 13px; color: var(--muted); font-size: 14px; }
    .story-art { position: relative; min-height: 330px; overflow: hidden; border-radius: var(--radius-lg); background: #d9e6df; }
    .story-art img { width: 100%; height: 330px; object-fit: cover; }
    .story-caption { position: absolute; right: 18px; bottom: 18px; left: 18px; display: flex; align-items: end; justify-content: space-between; padding: 16px 18px; border: 1px solid rgba(255,255,255,.3); border-radius: 8px; color: #fff; background: rgba(15, 39, 33, .74); backdrop-filter: blur(10px); }
    .story-caption strong { display: block; font-size: 15px; }
    .story-caption span { color: rgba(255,255,255,.76); font-size: 11px; }
    .story-caption b { color: #b9efd8; font-size: 20px; }

    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .metric {
      min-height: 156px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      transition: transform .2s, box-shadow .2s;
    }
    .metric:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .metric-top { display: flex; align-items: center; justify-content: space-between; }
    .metric-icon { display: grid; width: 35px; height: 35px; place-items: center; border-radius: 9px; color: var(--green); background: var(--mint); font-weight: 800; }
    .metric-label { color: var(--muted); font-size: 12px; font-weight: 600; }
    .metric strong { display: block; margin: 15px 0 3px; font-size: 27px; line-height: 1.2; }
    .metric small { color: var(--muted); font-size: 11px; }

    .topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .topic-card {
      position: relative;
      min-height: 190px;
      display: flex;
      flex-direction: column;
      justify-content: end;
      overflow: hidden;
      padding: 20px;
      border-radius: var(--radius);
      color: white;
      background: var(--topic-bg, #253e37);
      isolation: isolate;
      transition: transform .22s;
    }
    .topic-card:hover { transform: translateY(-4px); color: white; }
    .topic-card::before { position: absolute; z-index: -1; inset: 0; background: linear-gradient(0deg, rgba(6,22,18,.86), rgba(6,22,18,.02) 82%); content: ""; }
    .topic-card img { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
    .topic-card:hover img { transform: scale(1.05); }
    .topic-card .topic-tag { align-self: start; margin-bottom: auto; padding: 4px 8px; border: 1px solid rgba(255,255,255,.35); border-radius: 4px; color: white; background: rgba(255,255,255,.12); font-size: 10px; font-weight: 700; }
    .topic-card h3 { margin: 22px 0 5px; font-size: 20px; font-weight: 800; }
    .topic-card p { max-width: 250px; margin: 0; color: rgba(255,255,255,.78); font-size: 12px; }
    .topic-card .topic-count { margin-top: 10px; color: #c4f1df; font-size: 11px; font-weight: 700; }

    .feature-strip { display: grid; grid-template-columns: 1fr 1fr 1fr; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius-lg); overflow: hidden; }
    .feature-cell { min-height: 170px; padding: 25px; border-right: 1px solid rgba(255,255,255,.13); }
    .feature-cell:last-child { border: 0; }
    .feature-cell .feature-num { color: #9de0c4; font-size: 12px; font-weight: 800; }
    .feature-cell h3 { margin: 13px 0 8px; font-size: 18px; font-weight: 800; }
    .feature-cell p { margin: 0; color: #b7c9c2; font-size: 12px; }

    .video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .video-card { min-width: 0; }
    .video-thumb { position: relative; overflow: hidden; aspect-ratio: 4 / 3; border-radius: var(--radius); background: #dfe8e2; }
    .video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
    .video-card:hover .video-thumb img { transform: scale(1.045); }
    .video-duration { position: absolute; right: 9px; bottom: 9px; padding: 3px 7px; border-radius: 4px; color: white; background: rgba(10,20,18,.78); font-size: 10px; font-weight: 700; }
    .video-quality { position: absolute; top: 9px; left: 9px; padding: 3px 7px; border-radius: 4px; color: #fff; background: var(--green); font-size: 9px; font-weight: 800; }
    .video-card h3 { margin: 12px 0 4px; font-size: 15px; font-weight: 800; }
    .video-card p { margin: 0; color: var(--muted); font-size: 11px; }
    .video-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 8px; }
    .video-meta span { color: var(--muted); font-size: 10px; }
    .video-meta b { color: var(--coral); font-size: 10px; }

    .compare-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .compare-panel { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
    .compare-panel.highlight { border-color: #9bcbb8; background: #eff8f3; }
    .compare-panel h3 { margin: 0 0 17px; font-size: 17px; font-weight: 800; }
    .compare-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
    .compare-list li { display: flex; gap: 10px; color: var(--ink-soft); font-size: 12px; }
    .compare-list li::before { flex: 0 0 19px; display: grid; width: 19px; height: 19px; place-items: center; border-radius: 50%; color: var(--green); background: var(--mint); content: "✓"; font-size: 11px; font-weight: 800; }
    .compare-panel:not(.highlight) .compare-list li::before { color: #9a7268; background: #f7e8e3; content: "–"; }

    .member-layout { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 48px; }
    .member-intro h2 { margin: 9px 0 14px; font-size: 34px; font-weight: 800; line-height: 1.3; }
    .member-intro p { color: var(--muted); font-size: 14px; }
    .member-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .member-item { display: flex; gap: 12px; padding: 17px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
    .member-icon { flex: 0 0 34px; display: grid; width: 34px; height: 34px; place-items: center; border-radius: 8px; color: var(--green); background: var(--mint); font-weight: 800; }
    .member-item strong { display: block; margin: 0 0 4px; font-size: 12px; }
    .member-item span { display: block; color: var(--muted); font-size: 10px; line-height: 1.6; }

    .calendar-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .calendar-item { padding: 15px; border-left: 3px solid var(--green); border-radius: 0 6px 6px 0; background: #fff; }
    .calendar-item .day { color: var(--green); font-size: 10px; font-weight: 800; }
    .calendar-item strong { display: block; margin: 5px 0 3px; font-size: 12px; }
    .calendar-item span { color: var(--muted); font-size: 10px; }

    .editorial-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
    .editorial-feature { position: relative; min-height: 310px; display: flex; align-items: end; overflow: hidden; padding: 25px; border-radius: var(--radius-lg); color: white; background: #283b36; }
    .editorial-feature img { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; }
    .editorial-feature::after { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(9,25,20,.85), rgba(9,25,20,0) 80%); content: ""; }
    .editorial-feature > div { position: relative; z-index: 1; max-width: 510px; }
    .editorial-feature .article-label { color: #c4f1df; font-size: 10px; font-weight: 800; }
    .editorial-feature h3 { margin: 7px 0; font-size: 23px; font-weight: 800; }
    .editorial-feature p { margin: 0; color: rgba(255,255,255,.8); font-size: 12px; }
    .article-list { display: grid; gap: 10px; }
    .article-item { display: flex; gap: 14px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 7px; background: #fff; transition: border-color .2s, transform .2s; }
    .article-item:hover { transform: translateX(3px); border-color: #9bcbb8; }
    .article-thumb { flex: 0 0 78px; height: 66px; overflow: hidden; border-radius: 5px; background: #e8eee9; }
    .article-thumb img { width: 100%; height: 100%; object-fit: cover; }
    .article-item small { color: var(--green); font-size: 9px; font-weight: 800; }
    .article-item strong { display: block; margin: 3px 0; font-size: 12px; line-height: 1.45; }
    .article-item span { color: var(--muted); font-size: 10px; }

    .assurance-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .assurance { display: flex; gap: 12px; align-items: flex-start; }
    .assurance-icon { flex: 0 0 36px; display: grid; width: 36px; height: 36px; place-items: center; border-radius: 9px; color: var(--green-dark); background: #dff2e9; font-weight: 800; }
    .assurance strong { display: block; margin-bottom: 4px; font-size: 12px; }
    .assurance span { display: block; color: var(--muted); font-size: 10px; line-height: 1.6; }

    .quote-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 50px; align-items: center; }
    .quote-summary h2 { margin: 10px 0; font-size: 34px; font-weight: 800; line-height: 1.3; }
    .quote-score { display: flex; align-items: end; gap: 9px; margin-top: 20px; }
    .quote-score strong { font-size: 43px; line-height: 1; }
    .quote-score span { padding-bottom: 4px; color: var(--muted); font-size: 11px; }
    .stars { color: #e5a738; letter-spacing: 0; }
    .quote-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .quote-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
    .quote-card p { margin: 9px 0 14px; color: var(--ink-soft); font-size: 12px; }
    .quote-user { display: flex; align-items: center; gap: 9px; }
    .avatar { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; color: #245b48; background: #d8efe4; font-size: 11px; font-weight: 800; }
    .quote-user strong { display: block; font-size: 10px; }
    .quote-user span { display: block; color: var(--muted); font-size: 9px; }

    .milestone { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 28px; }
    .milestone-item { position: relative; padding: 0 20px 0 0; }
    .milestone-item::before { position: absolute; top: 10px; right: 0; left: 0; height: 1px; background: #426057; content: ""; }
    .milestone-item:last-child::before { right: 100%; }
    .milestone-dot { position: relative; z-index: 1; width: 20px; height: 20px; margin-bottom: 15px; border: 5px solid #142d28; border-radius: 50%; background: #9de0c4; box-shadow: 0 0 0 1px #9de0c4; }
    .milestone-item strong { display: block; margin-bottom: 6px; font-size: 13px; }
    .milestone-item p { max-width: 220px; margin: 0; color: #b6c7c0; font-size: 10px; }

    .quick-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
    .quick-grid h2 { margin: 9px 0 12px; font-size: 30px; font-weight: 800; line-height: 1.3; }
    .quick-grid > div:first-child p { max-width: 390px; color: var(--muted); font-size: 13px; }
    .quick-list { display: grid; gap: 9px; }
    .quick-item { display: flex; gap: 13px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
    .quick-item b { color: var(--coral); font-size: 11px; }
    .quick-item p { margin: 0; color: var(--ink-soft); font-size: 11px; }

    .faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .faq-item { padding: 18px 20px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
    .faq-item h3 { margin: 0 0 8px; font-size: 13px; font-weight: 800; }
    .faq-item p { margin: 0; color: var(--muted); font-size: 11px; }

    .closing { padding: 52px 0; color: white; background: linear-gradient(105deg, #12694f, #1d8a67); }
    .closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .closing h2 { margin: 0 0 6px; font-size: 25px; font-weight: 800; }
    .closing p { margin: 0; color: rgba(255,255,255,.78); font-size: 12px; }
    .closing .btn-main { color: var(--green-dark); background: white; }
    .closing .btn-main:hover { background: #e9f5ee; }

    .footer { padding: 44px 0 20px; color: #c1d0ca; background: #10231f; }
    .footer-main { display: grid; grid-template-columns: 1.35fr .65fr .65fr .85fr; gap: 35px; padding-bottom: 32px; }
    .footer .brand { color: white; }
    .footer-brand p { max-width: 330px; margin: 15px 0 0; color: #9cafaa; font-size: 11px; }
    .footer h3 { margin: 5px 0 13px; color: white; font-size: 12px; font-weight: 800; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { width: fit-content; color: #aebeb8; font-size: 11px; transition: color .2s; }
    .footer-links a:hover { color: #9de0c4; }
    .footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); color: #81948d; font-size: 10px; }

    @media (max-width: 1024px) {
      .container-wide { width: min(calc(100% - 36px), var(--container)); }
      .topic-grid, .video-grid { grid-template-columns: repeat(2, 1fr); }
      .calendar-grid { grid-template-columns: repeat(3, 1fr); }
      .story-grid { gap: 35px; }
      .footer-main { grid-template-columns: 1.2fr .8fr .8fr; }
      .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 768px) {
      .navbar { min-height: 68px; }
      .navbar-collapse { padding: 8px 0 16px; }
      .navbar-nav { gap: 2px; }
      .nav-link { width: fit-content; padding: 9px 12px !important; }
      .nav-action { margin-top: 8px; }
      .hero { min-height: 520px; background-position: 58% center; }
      .hero::before { background: linear-gradient(90deg, rgba(12,32,28,.84), rgba(12,32,28,.48)), linear-gradient(0deg, rgba(12,32,28,.4), transparent 65%); }
      .hero-inner { padding: 54px 0 34px; }
      .hero h1 { font-size: 39px; }
      .section { padding: 58px 0; }
      .story-grid, .member-layout, .quote-layout, .quick-grid, .editorial-grid { grid-template-columns: 1fr; }
      .story-art img { height: 280px; }
      .metric-grid { grid-template-columns: repeat(2, 1fr); }
      .assurance-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-main { grid-template-columns: repeat(2, 1fr); }
      .footer-brand { grid-column: 1 / -1; }
      .closing-inner { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 520px) {
      .container-wide { width: min(calc(100% - 30px), var(--container)); }
      .brand { gap: 8px; font-size: 13px; }
      .brand-mark { width: 31px; height: 31px; }
      .hero { min-height: 570px; }
      .hero h1 { font-size: 34px; }
      .hero-copy > p { font-size: 13px; }
      .hero-data { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 0; }
      .hero-stat { min-width: 0; padding: 0 8px; }
      .hero-stat:first-child { padding-left: 0; }
      .hero-stat strong { font-size: 18px; }
      .hero-stat span { font-size: 9px; }
      .trust-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
      .trust-items { gap: 9px 14px; }
      .story-copy h2, .member-intro h2, .quote-summary h2 { font-size: 29px; }
      .metric-grid { gap: 9px; }
      .metric { min-height: 138px; padding: 15px; }
      .metric strong { font-size: 23px; }
      .topic-grid, .video-grid { gap: 10px; }
      .topic-card { min-height: 165px; padding: 14px; }
      .topic-card h3 { font-size: 17px; }
      .topic-card p { font-size: 10px; }
      .feature-strip { grid-template-columns: 1fr; }
      .feature-cell { min-height: 0; padding: 18px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.13); }
      .feature-cell:last-child { border-bottom: 0; }
      .member-list { grid-template-columns: 1fr; }
      .calendar-grid { grid-template-columns: repeat(2, 1fr); }
      .editorial-feature { min-height: 260px; }
      .assurance-grid { gap: 16px 10px; }
      .assurance { gap: 8px; }
      .assurance-icon { flex-basis: 30px; width: 30px; height: 30px; }
      .quote-grid, .faq-grid, .compare-wrap { grid-template-columns: 1fr; }
      .milestone { grid-template-columns: 1fr 1fr; gap: 20px 0; }
      .milestone-item::before { display: none; }
      .footer-main { gap: 24px 15px; }
      .footer-bottom { flex-direction: column; }
      .closing h2 { font-size: 22px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
    }

/* roulang page: category1 */
:root {
      --ink: #142522;
      --ink-soft: #3d514c;
      --muted: #71807b;
      --paper: #f8f9f7;
      --white: #fff;
      --line: #e3e9e5;
      --green: #167a60;
      --green-dark: #0c5d49;
      --mint: #dff2e9;
      --coral: #e36d50;
      --yellow: #f0c65b;
      --lavender: #ece8f7;
      --radius: 8px;
      --radius-lg: 16px;
      --shadow: 0 12px 32px rgba(20, 37, 34, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "DM Sans", "Noto Sans SC", sans-serif;
      font-size: 15px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 3px solid rgba(22, 122, 96, .34);
      outline-offset: 3px;
    }
    .container-wide { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--green);
      font-size: 11px;
      font-weight: 800;
    }
    .eyebrow::before { width: 7px; height: 7px; border-radius: 50%; background: var(--coral); content: ""; }
    .section-heading { max-width: 700px; margin-bottom: 30px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(25px, 3vw, 36px); font-weight: 800; line-height: 1.25; }
    .section-heading p { max-width: 670px; margin: 0; color: var(--muted); font-size: 14px; }
    .section { padding: 68px 0; }
    .section-tint { background: #eef4f0; }
    .section-white { background: var(--white); }
    .section-dark { color: var(--white); background: #142d28; }
    .section-dark .section-heading p { color: #b6c7c0; }
    .site-header {
      position: sticky;
      z-index: 1000;
      top: 0;
      border-bottom: 1px solid rgba(20, 37, 34, .08);
      background: rgba(248, 249, 247, .94);
      backdrop-filter: blur(16px);
    }
    .navbar { min-height: 76px; padding: 0; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--ink);
      font-weight: 800;
      font-size: 16px;
      white-space: nowrap;
    }
    .brand-mark {
      display: grid;
      width: 34px;
      height: 34px;
      flex: 0 0 34px;
      place-items: center;
      border-radius: 10px;
      color: #fff;
      background: linear-gradient(140deg, #199572, #0e624c);
      box-shadow: 0 5px 12px rgba(22, 122, 96, .22);
    }
    .brand-mark svg { width: 17px; height: 17px; }
    .navbar-nav { gap: 7px; }
    .nav-link {
      position: relative;
      padding: 10px 14px !important;
      border-radius: 6px;
      color: var(--ink-soft);
      font-size: 13px;
      font-weight: 600;
      transition: color .2s ease, background .2s ease;
    }
    .nav-link:hover, .nav-link.active { color: var(--green-dark); background: #e8f2ed; }
    .nav-link.active::after {
      position: absolute;
      right: 14px;
      bottom: 3px;
      left: 14px;
      height: 2px;
      border-radius: 2px;
      background: var(--green);
      content: "";
    }
    .nav-action {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 16px;
      border: 1px solid var(--line);
      border-radius: 6px;
      color: var(--ink);
      background: var(--white);
      font-size: 13px;
      font-weight: 700;
      transition: border-color .2s, color .2s, transform .2s;
    }
    .nav-action:hover { transform: translateY(-1px); border-color: var(--green); color: var(--green); }
    .hero {
      position: relative;
      overflow: hidden;
      color: #fff;
      background: #18372f url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=2000&q=90") center 48% / cover no-repeat;
    }
    .hero::before {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(12, 32, 28, .91) 0%, rgba(12, 32, 28, .78) 48%, rgba(12, 32, 28, .35) 100%);
      content: "";
    }
    .hero-inner { position: relative; z-index: 1; padding: 58px 0 56px; }
    .hero-layout { display: grid; grid-template-columns: 1fr 360px; align-items: center; gap: 56px; }
    .hero .eyebrow { color: #b9efd8; }
    .hero h1 { max-width: 720px; margin: 13px 0 14px; font-size: clamp(34px, 5vw, 52px); font-weight: 800; line-height: 1.2; }
    .hero-copy p { max-width: 680px; margin: 0; color: rgba(255,255,255,.84); font-size: 15px; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 23px; }
    .btn-main, .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 19px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 800;
      transition: transform .2s, background .2s, border-color .2s;
    }
    .btn-main { color: #fff; background: var(--green); }
    .btn-main:hover { transform: translateY(-2px); color: #fff; background: #1a8d6e; }
    .btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.08); }
    .btn-ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.16); }
    .hero-panel {
      padding: 23px;
      border: 1px solid rgba(255,255,255,.2);
      border-radius: var(--radius-lg);
      background: rgba(17, 43, 37, .72);
      box-shadow: 0 20px 50px rgba(0,0,0,.18);
      backdrop-filter: blur(10px);
    }
    .panel-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 17px; }
    .panel-title strong { font-size: 15px; }
    .live-badge { padding: 5px 9px; border-radius: 4px; color: #b9efd8; background: rgba(185,239,216,.13); font-size: 10px; font-weight: 800; }
    .choice-list { display: grid; gap: 9px; }
    .choice {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 11px 12px;
      border: 1px solid rgba(255,255,255,.15);
      border-radius: 6px;
      color: rgba(255,255,255,.88);
      background: rgba(255,255,255,.06);
      font-size: 12px;
    }
    .choice span:last-child { color: #b9efd8; font-weight: 700; }
    .panel-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; color: rgba(255,255,255,.65); font-size: 11px; }
    .panel-foot strong { color: #fff; font-size: 16px; }
    .metrics-band { padding: 22px 0; border-bottom: 1px solid var(--line); background: var(--white); }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 8px 22px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border: 0; }
    .metric strong { display: block; color: var(--green-dark); font-size: 23px; line-height: 1.25; }
    .metric span { color: var(--muted); font-size: 11px; }
    .service-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 48px; align-items: start; }
    .service-intro { position: sticky; top: 110px; }
    .service-list { display: grid; gap: 12px; }
    .service-row {
      display: grid;
      grid-template-columns: 54px 1fr auto;
      align-items: center;
      gap: 18px;
      padding: 19px 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      transition: transform .2s, box-shadow .2s, border-color .2s;
    }
    .service-row:hover { transform: translateX(3px); border-color: #b7d7c9; box-shadow: var(--shadow); }
    .service-icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 12px; color: var(--green-dark); background: var(--mint); font-size: 21px; }
    .service-row h3 { margin: 0 0 4px; font-size: 16px; font-weight: 800; }
    .service-row p { margin: 0; color: var(--muted); font-size: 12px; }
    .service-count { color: var(--green); font-size: 12px; font-weight: 800; white-space: nowrap; }
    .compare-wrap { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
    .compare-head, .compare-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; align-items: center; }
    .compare-head { color: #fff; background: #18372f; }
    .compare-head > div, .compare-row > div { padding: 15px 18px; }
    .compare-head > div { font-size: 12px; font-weight: 800; }
    .compare-row { border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
    .compare-row > div:first-child { color: var(--ink); font-weight: 700; }
    .compare-row .good { color: var(--green); font-weight: 700; }
    .milestone-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
    .milestone { position: relative; padding: 0 26px 0 0; }
    .milestone:not(:last-child)::after { position: absolute; top: 13px; right: 14px; width: 38px; height: 1px; background: #bfd3c9; content: ""; }
    .milestone-num { display: grid; width: 28px; height: 28px; margin-bottom: 15px; place-items: center; border-radius: 50%; color: var(--green-dark); background: var(--mint); font-size: 11px; font-weight: 800; }
    .milestone h3 { margin: 0 0 7px; font-size: 15px; font-weight: 800; }
    .milestone p { max-width: 280px; margin: 0; color: var(--muted); font-size: 12px; }
    .editorial-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; }
    .feature-story { position: relative; min-height: 330px; overflow: hidden; border-radius: var(--radius-lg); color: #fff; background: #213733; }
    .feature-story img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
    .feature-story:hover img { transform: scale(1.035); }
    .feature-story::after { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8,27,23,.88), transparent 72%); content: ""; }
    .feature-content { position: absolute; z-index: 1; right: 25px; bottom: 23px; left: 25px; }
    .story-tag { display: inline-block; margin-bottom: 9px; padding: 4px 8px; border-radius: 4px; color: #fff; background: var(--coral); font-size: 10px; font-weight: 800; }
    .feature-content h3 { max-width: 520px; margin: 0 0 7px; font-size: 23px; font-weight: 800; line-height: 1.35; }
    .feature-content p { margin: 0; color: rgba(255,255,255,.76); font-size: 12px; }
    .story-list { display: grid; gap: 12px; }
    .story-item { display: grid; grid-template-columns: 112px 1fr; gap: 15px; align-items: center; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
    .story-item:last-child { border-bottom: 0; }
    .story-item img { width: 112px; height: 78px; border-radius: 6px; object-fit: cover; }
    .story-item small { color: var(--green); font-size: 10px; font-weight: 800; }
    .story-item h3 { margin: 4px 0 0; font-size: 14px; font-weight: 800; line-height: 1.45; }
    .assurance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .assurance { padding-top: 18px; border-top: 2px solid rgba(255,255,255,.22); }
    .assurance-mark { color: var(--yellow); font-size: 22px; }
    .assurance h3 { margin: 12px 0 7px; font-size: 16px; font-weight: 800; }
    .assurance p { max-width: 300px; margin: 0; color: #b6c7c0; font-size: 12px; }
    .faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 55px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { padding: 16px 0; border-bottom: 1px solid var(--line); }
    .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 800; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { color: var(--green); content: "+"; font-size: 20px; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { margin: 10px 28px 0 0; color: var(--muted); font-size: 13px; }
    .cta-band { padding: 36px 0; color: #fff; background: linear-gradient(110deg, #0c5d49, #167a60 66%, #26886c); }
    .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .cta-inner h2 { margin: 0 0 5px; font-size: 23px; font-weight: 800; }
    .cta-inner p { margin: 0; color: rgba(255,255,255,.78); font-size: 13px; }
    .cta-band .btn-main { color: var(--green-dark); background: #fff; }
    .cta-band .btn-main:hover { color: var(--green-dark); background: #e6f3ed; }
    .footer { padding: 46px 0 18px; background: #f0f3f0; }
    .footer-main { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; padding-bottom: 34px; }
    .footer-brand p { max-width: 350px; margin: 14px 0 0; color: var(--muted); font-size: 12px; }
    .footer h3 { margin: 3px 0 13px; font-size: 12px; font-weight: 800; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { width: fit-content; color: var(--muted); font-size: 12px; transition: color .2s; }
    .footer-links a:hover { color: var(--green); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
    .category-intro { max-width: 780px; margin-bottom: 32px; }
    .category-intro h2 { margin: 8px 0 10px; font-size: clamp(25px, 3vw, 34px); font-weight: 800; line-height: 1.25; }
    .category-intro p { max-width: 700px; margin: 0; color: var(--muted); font-size: 14px; }
    .category-mosaic { display: grid; grid-template-columns: 1.15fr .85fr .85fr; grid-template-rows: 220px 180px; gap: 14px; }
    .category-tile { position: relative; overflow: hidden; min-width: 0; border-radius: var(--radius-lg); color: #fff; background: #36584c; }
    .category-tile:first-child { grid-row: span 2; }
    .category-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
    .category-tile:hover img { transform: scale(1.04); }
    .category-tile::after { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(9,31,25,.88), rgba(9,31,25,.03) 72%); content: ""; }
    .tile-copy { position: absolute; z-index: 1; right: 19px; bottom: 16px; left: 19px; }
    .tile-copy span { color: #c6edda; font-size: 10px; font-weight: 800; }
    .tile-copy h3 { margin: 3px 0 4px; font-size: 19px; font-weight: 800; }
    .tile-copy p { margin: 0; color: rgba(255,255,255,.78); font-size: 11px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .topic-tag { display: inline-flex; align-items: center; gap: 8px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink-soft); background: #fff; font-size: 12px; font-weight: 700; transition: border-color .2s, color .2s, background .2s; }
    .topic-tag:hover { border-color: #a8cfbc; color: var(--green-dark); background: #f0f8f3; }
    .topic-tag b { color: var(--green); font-size: 10px; }
    .category-feature { display: grid; grid-template-columns: 1fr 1fr; min-height: 300px; overflow: hidden; border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
    .category-feature-image { min-height: 300px; }
    .category-feature-image img { width: 100%; height: 100%; object-fit: cover; }
    .category-feature-copy { align-self: center; padding: 34px; }
    .category-feature-copy h3 { margin: 9px 0 10px; font-size: 25px; font-weight: 800; line-height: 1.35; }
    .category-feature-copy p { margin: 0 0 17px; color: var(--muted); font-size: 13px; }
    .text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--green-dark); font-size: 12px; font-weight: 800; }
    .text-link:hover { color: var(--coral); }
    .quality-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--line); }
    .quality-cell { padding: 22px; background: var(--white); }
    .quality-cell strong { display: block; margin-bottom: 5px; color: var(--green-dark); font-size: 14px; }
    .quality-cell span { color: var(--muted); font-size: 12px; }
    @media (max-width: 1024px) {
      .hero-layout { grid-template-columns: 1fr 320px; gap: 30px; }
      .service-layout { gap: 30px; }
      .category-mosaic { grid-template-rows: 200px 160px; }
      .footer-main { gap: 26px; }
    }
    @media (max-width: 768px) {
      .container-wide { width: min(calc(100% - 36px), var(--container)); }
      .navbar { min-height: 68px; }
      .navbar-collapse { padding: 8px 0 15px; }
      .navbar-nav { align-items: stretch !important; gap: 3px; }
      .nav-action { justify-content: center; margin-top: 7px; }
      .hero-inner { padding: 45px 0; }
      .hero-layout, .service-layout, .editorial-layout, .faq-grid { grid-template-columns: 1fr; }
      .hero-layout { gap: 25px; }
      .hero-panel { max-width: 500px; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); row-gap: 14px; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3) { padding-left: 0; }
      .service-intro { position: static; }
      .milestone-grid { grid-template-columns: 1fr; gap: 22px; }
      .milestone:not(:last-child)::after { top: 35px; right: auto; bottom: -17px; left: 13px; width: 1px; height: 20px; }
      .assurance-grid { grid-template-columns: 1fr; gap: 22px; }
      .faq-grid { gap: 15px; }
      .category-mosaic { grid-template-columns: 1fr 1fr; grid-template-rows: 260px 170px 170px; }
      .category-tile:first-child { grid-column: 1 / -1; grid-row: auto; }
      .category-feature { grid-template-columns: 1fr; }
      .category-feature-image { min-height: 230px; max-height: 270px; }
      .category-feature-copy { padding: 25px; }
      .footer-main { grid-template-columns: repeat(2, 1fr); }
      .footer-brand { grid-column: 1 / -1; }
      .section { padding: 54px 0; }
    }
    @media (max-width: 520px) {
      .container-wide { width: min(calc(100% - 28px), var(--container)); }
      .brand { gap: 8px; font-size: 13px; }
      .brand-mark { width: 31px; height: 31px; flex-basis: 31px; }
      .hero h1 { font-size: 34px; }
      .hero-actions { display: grid; grid-template-columns: 1fr; }
      .hero-actions .btn-main, .hero-actions .btn-ghost { width: 100%; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .metric { padding: 6px 12px; }
      .metric strong { font-size: 19px; }
      .service-row { grid-template-columns: 44px 1fr; gap: 12px; padding: 15px; }
      .service-icon { width: 42px; height: 42px; }
      .service-count { grid-column: 2; }
      .compare-wrap { overflow-x: auto; }
      .compare-head, .compare-row { min-width: 520px; }
      .compare-head > div, .compare-row > div { padding: 12px; }
      .story-list { gap: 14px; }
      .story-item { grid-template-columns: 92px 1fr; gap: 11px; }
      .story-item img { width: 92px; height: 68px; }
      .feature-story { min-height: 280px; }
      .feature-content h3 { font-size: 19px; }
      .category-mosaic { grid-template-columns: 1fr; grid-template-rows: 240px repeat(4, 165px); }
      .category-tile:first-child { grid-column: auto; }
      .quality-strip { grid-template-columns: 1fr; }
      .cta-inner { align-items: flex-start; flex-direction: column; }
      .cta-inner .btn-main { width: 100%; }
      .footer-main { grid-template-columns: 1fr 1fr; gap: 25px 18px; }
      .footer-bottom { flex-direction: column; gap: 6px; }
      .section-heading { margin-bottom: 22px; }
    }