/* roulang page: index */
:root{
      --bg: #f7faff;
      --bg-soft: #eef5ff;
      --card: #ffffff;
      --line: rgba(148,163,184,.24);
      --line-strong: rgba(37,99,235,.38);
      --text: #0f172a;
      --sub: #334155;
      --muted: #64748b;
      --light: #94a3b8;
      --primary: #2563eb;
      --primary-strong: #1748b5;
      --secondary: #22a7c7;
      --warn: #f59e0b;
      --success: #0f9d58;
      --danger: #d14d72;
      --shadow: 0 12px 30px rgba(15,23,42,.06);
      --shadow-hover: 0 18px 42px rgba(37,99,235,.12);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1220px;
      --gap: 24px;
      --gap-lg: 32px;
      --gap-sm: 16px;
      --header-h: 76px;
      --transition: .24s cubic-bezier(.2,.8,.2,1);
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 14% 8%, rgba(37,99,235,.07), transparent 18%),
        radial-gradient(circle at 88% 14%, rgba(34,167,199,.05), transparent 15%),
        linear-gradient(180deg, #fbfdff 0%, #f7faff 38%, #f6f9ff 100%);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    img {
      max-width: 100%;
      display: block;
      border: 0;
    }
    button, input, textarea, select {
      font: inherit;
    }
    button {
      border: 0;
      background: none;
      cursor: pointer;
    }
    ::selection {
      background: rgba(37,99,235,.14);
      color: var(--text);
    }
    .skip-link {
      position: absolute;
      left: 12px;
      top: -40px;
      z-index: 1000;
      background: var(--primary);
      color: #fff;
      padding: 10px 14px;
      border-radius: 999px;
      transition: top var(--transition);
    }
    .skip-link:focus { top: 12px; outline: none; }

    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 900;
      backdrop-filter: blur(10px);
      background: rgba(251,253,255,.82);
      border-bottom: 1px solid rgba(148,163,184,.15);
    }
    .header-inner {
      height: var(--header-h);
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 230px;
      flex: 0 0 auto;
    }
    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background:
        linear-gradient(145deg, rgba(37,99,235,.14), rgba(34,167,199,.08)),
        #fff;
      display: grid;
      place-items: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 20px;
      border: 1px solid rgba(37,99,235,.12);
      box-shadow: var(--shadow);
    }
    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }
    .brand-text strong {
      font-size: 18px;
      letter-spacing: .2px;
    }
    .brand-text span {
      font-size: 12px;
      color: var(--muted);
      margin-top: 4px;
    }
    .nav-wrap {
      flex: 1 1 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      background: rgba(239,245,255,.92);
      border: 1px solid rgba(148,163,184,.20);
      border-radius: 999px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
    }
    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: var(--sub);
      font-size: 14px;
      font-weight: 600;
      transition: all var(--transition);
      white-space: nowrap;
    }
    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--primary);
      background: rgba(255,255,255,.85);
      outline: none;
    }
    .nav-link.active {
      color: var(--primary);
      background: rgba(255,255,255,.98);
      box-shadow: 0 8px 20px rgba(37,99,235,.08);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
    }
    .search-box {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 250px;
      height: 44px;
      padding: 0 14px;
      border-radius: 14px;
      border: 1px solid rgba(148,163,184,.24);
      background: #fff;
      box-shadow: 0 6px 18px rgba(15,23,42,.03);
      transition: all var(--transition);
    }
    .search-box:focus-within {
      border-color: rgba(37,99,235,.45);
      box-shadow: 0 12px 28px rgba(37,99,235,.10);
    }
    .search-box svg {
      flex: 0 0 auto;
      color: var(--light);
    }
    .search-box input {
      width: 100%;
      border: 0;
      outline: none;
      background: transparent;
      color: var(--text);
      font-size: 14px;
    }
    .search-box input::placeholder { color: #94a3b8; }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 14px;
      font-size: 14px;
      font-weight: 700;
      transition: all var(--transition);
      white-space: nowrap;
      outline: none;
    }
    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
      box-shadow: 0 10px 22px rgba(37,99,235,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible {
      transform: translateY(-1px);
      box-shadow: 0 16px 30px rgba(37,99,235,.22);
      background: linear-gradient(135deg, var(--primary-strong) 0%, var(--primary) 100%);
    }
    .btn-secondary {
      color: var(--primary);
      background: #fff;
      border: 1px solid rgba(37,99,235,.20);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      transform: translateY(-1px);
      background: var(--bg-soft);
      border-color: rgba(37,99,235,.38);
      box-shadow: 0 12px 24px rgba(37,99,235,.08);
    }
    .btn-text {
      color: var(--primary);
      padding: 0;
      min-height: auto;
      background: transparent;
    }
    .btn-text:hover .arrow {
      transform: translateX(2px);
    }
    .arrow { transition: transform var(--transition); }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid rgba(148,163,184,.22);
      background: #fff;
      align-items: center;
      justify-content: center;
      color: var(--sub);
    }
    .mobile-panel {
      display: none;
      padding: 0 0 18px;
    }
    .mobile-panel.open { display: block; }
    .mobile-panel .panel-box {
      margin-top: 10px;
      background: #fff;
      border: 1px solid rgba(148,163,184,.22);
      border-radius: 18px;
      box-shadow: var(--shadow);
      padding: 14px;
    }
    .mobile-panel .panel-links {
      display: grid;
      gap: 8px;
      margin-bottom: 14px;
    }
    .mobile-panel .panel-links a {
      min-height: 44px;
      display: flex;
      align-items: center;
      padding: 0 14px;
      border-radius: 12px;
      background: #f8fbff;
      color: var(--sub);
      font-weight: 600;
    }
    .mobile-panel .panel-links a.active {
      background: rgba(37,99,235,.08);
      color: var(--primary);
    }
    .mobile-panel .panel-actions {
      display: grid;
      gap: 10px;
    }

    .hero {
      padding: 34px 0 14px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 30px;
      align-items: center;
      min-height: 640px;
    }
    .hero-copy {
      padding: 20px 0;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(37,99,235,.08);
      color: var(--primary-strong);
      border: 1px solid rgba(37,99,235,.14);
      font-size: 13px;
      font-weight: 700;
    }
    .hero h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 4.1vw, 56px);
      line-height: 1.12;
      letter-spacing: -.02em;
    }
    .hero p {
      margin: 0;
      color: var(--sub);
      font-size: 17px;
      line-height: 1.9;
      max-width: 54ch;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin: 26px 0 22px;
    }
    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid rgba(148,163,184,.20);
      color: var(--sub);
      font-size: 13px;
      box-shadow: 0 8px 18px rgba(15,23,42,.04);
    }
    .hero-visual {
      position: relative;
      min-height: 640px;
      border-radius: 30px;
      padding: 18px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.5), rgba(255,255,255,.86)),
        linear-gradient(135deg, rgba(37,99,235,.06), rgba(34,167,199,.04));
      border: 1px solid rgba(148,163,184,.20);
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .hero-visual::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 22% 18%, rgba(37,99,235,.10), transparent 18%),
        radial-gradient(circle at 86% 22%, rgba(34,167,199,.08), transparent 16%),
        radial-gradient(circle at 70% 86%, rgba(245,158,11,.06), transparent 18%);
      pointer-events: none;
    }
    .hero-card-main {
      position: relative;
      height: 100%;
      border-radius: 24px;
      overflow: hidden;
      background: #dbeafe;
      box-shadow: 0 20px 50px rgba(15,23,42,.09);
    }
    .hero-card-main img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transform: scale(1.02);
    }
    .overlay-card {
      position: absolute;
      background: rgba(255,255,255,.94);
      border: 1px solid rgba(148,163,184,.20);
      border-radius: 18px;
      box-shadow: 0 12px 30px rgba(15,23,42,.10);
      padding: 14px 16px;
      backdrop-filter: blur(6px);
    }
    .overlay-card strong {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }
    .overlay-card span {
      display: block;
      font-size: 13px;
      color: var(--muted);
      line-height: 1.6;
    }
    .overlay-a {
      left: 20px;
      top: 20px;
      max-width: 220px;
    }
    .overlay-b {
      right: 18px;
      bottom: 20px;
      max-width: 240px;
    }
    .overlay-c {
      left: 28px;
      bottom: 98px;
      max-width: 180px;
      display: grid;
      gap: 8px;
    }
    .mini-stat {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--sub);
    }
    .mini-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--primary);
      box-shadow: 0 0 0 6px rgba(37,99,235,.10);
    }

    .section {
      padding: 92px 0;
    }
    .section-soft {
      background: linear-gradient(180deg, rgba(238,245,255,.7), rgba(255,255,255,.7));
    }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 28px;
    }
    .section-title {
      max-width: 700px;
    }
    .section-title h2 {
      margin: 0 0 10px;
      font-size: clamp(28px, 2.8vw, 38px);
      line-height: 1.18;
    }
    .section-title p {
      margin: 0;
      color: var(--sub);
      font-size: 16px;
      line-height: 1.85;
    }
    .section-note {
      color: var(--muted);
      font-size: 14px;
      flex: 0 0 auto;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: var(--gap);
      align-items: stretch;
    }
    .feature-card {
      position: relative;
      padding: 28px;
      background: var(--card);
      border: 1px solid rgba(148,163,184,.22);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      overflow: hidden;
    }
    .feature-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }
    .feature-card h3 {
      margin: 14px 0 10px;
      font-size: 22px;
      line-height: 1.35;
    }
    .feature-card p {
      margin: 0;
      color: var(--sub);
      line-height: 1.8;
    }
    .icon-box {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: linear-gradient(180deg, rgba(37,99,235,.12), rgba(34,167,199,.08));
      color: var(--primary);
      font-size: 22px;
    }
    .feature-card.big {
      min-height: 280px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.96)),
        linear-gradient(135deg, rgba(37,99,235,.05), rgba(34,167,199,.03));
    }
    .feature-card.big .floating-shape {
      position: absolute;
      right: -28px;
      top: -28px;
      width: 140px;
      height: 140px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(37,99,235,.12), rgba(37,99,235,0) 72%);
      pointer-events: none;
    }
    .feature-stack {
      display: grid;
      gap: var(--gap);
    }
    .feature-card.small {
      min-height: 132px;
      padding: 22px;
    }
    .feature-card.small h3 {
      font-size: 18px;
      margin: 12px 0 8px;
    }
    .feature-card.small p {
      font-size: 14px;
      line-height: 1.72;
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: var(--gap);
    }
    .case-card {
      background: #fff;
      border: 1px solid rgba(148,163,184,.22);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      display: flex;
      flex-direction: column;
      min-height: 100%;
    }
    .case-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }
    .case-media {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #dbeafe;
    }
    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition);
    }
    .case-card:hover .case-media img {
      transform: scale(1.03);
    }
    .case-body {
      padding: 22px;
      display: grid;
      gap: 12px;
    }
    .case-body h3 {
      margin: 0;
      font-size: 18px;
      line-height: 1.45;
    }
    .case-body p {
      margin: 0;
      color: var(--sub);
      font-size: 14px;
      line-height: 1.8;
    }
    .label-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
    }
    .label {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 0 10px;
      border-radius: 999px;
      background: #f7fbff;
      color: var(--primary-strong);
      border: 1px solid rgba(37,99,235,.14);
      font-size: 12px;
      font-weight: 700;
    }

    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: var(--gap);
    }
    .plan-card {
      padding: 26px;
      background: #fff;
      border: 1px solid rgba(148,163,184,.22);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .plan-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }
    .plan-card.recommend {
      background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
      border-color: rgba(37,99,235,.30);
    }
    .plan-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 30px;
      padding: 0 10px;
      border-radius: 999px;
      background: rgba(245,158,11,.10);
      color: #a16207;
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .plan-card h3 {
      margin: 0 0 8px;
      font-size: 20px;
      line-height: 1.4;
    }
    .plan-card .sub {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 16px;
    }
    .check-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--sub);
      font-size: 14px;
      line-height: 1.7;
    }
    .check-list li::before {
      content: "•";
      color: var(--primary);
      font-weight: 800;
      margin-top: 1px;
    }
    .plan-action {
      margin-top: 18px;
    }

    .insight-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: var(--gap);
      align-items: start;
    }
    .featured-article {
      background: #fff;
      border: 1px solid rgba(148,163,184,.22);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .featured-article:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }
    .featured-article .thumb {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #dbeafe;
    }
    .featured-article .thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition);
    }
    .featured-article:hover .thumb img {
      transform: scale(1.03);
    }
    .featured-article .content {
      padding: 24px;
    }
    .featured-article h3 {
      margin: 10px 0 10px;
      font-size: 22px;
      line-height: 1.4;
    }
    .featured-article p {
      margin: 0;
      color: var(--sub);
      font-size: 15px;
      line-height: 1.8;
    }
    .meta-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 13px;
    }
    .article-list {
      display: grid;
      gap: 14px;
    }
    .article-item {
      display: grid;
      grid-template-columns: 112px 1fr;
      gap: 14px;
      align-items: center;
      padding: 14px;
      background: #fff;
      border-radius: 18px;
      border: 1px solid rgba(148,163,184,.22);
      box-shadow: 0 10px 24px rgba(15,23,42,.04);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .article-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: var(--line-strong);
    }
    .article-item .thumb {
      aspect-ratio: 1 / 1;
      border-radius: 14px;
      overflow: hidden;
      background: #dbeafe;
    }
    .article-item .thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition);
    }
    .article-item:hover .thumb img {
      transform: scale(1.03);
    }
    .article-item h4 {
      margin: 0 0 8px;
      font-size: 16px;
      line-height: 1.5;
    }
    .article-item p {
      margin: 0;
      color: var(--sub);
      font-size: 13px;
      line-height: 1.75;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .article-item .meta-row {
      margin-top: 8px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--gap);
    }
    details.faq-item {
      background: #fff;
      border: 1px solid rgba(148,163,184,.22);
      border-radius: 18px;
      box-shadow: var(--shadow);
      padding: 0;
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    details.faq-item[open] {
      border-color: rgba(37,99,235,.36);
      box-shadow: var(--shadow-hover);
    }
    details.faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 22px 22px;
      font-weight: 700;
      color: var(--text);
      outline: none;
    }
    details.faq-item summary::-webkit-details-marker { display: none; }
    details.faq-item summary:hover {
      color: var(--primary);
    }
    .faq-q {
      width: 32px;
      height: 32px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      background: rgba(37,99,235,.08);
      color: var(--primary-strong);
      font-size: 14px;
      margin-right: 8px;
    }
    .faq-answer {
      padding: 0 22px 22px 22px;
      color: var(--sub);
      font-size: 14px;
      line-height: 1.85;
    }

    .cta-panel {
      padding: 28px;
      background:
        radial-gradient(circle at 15% 18%, rgba(37,99,235,.10), transparent 18%),
        radial-gradient(circle at 84% 12%, rgba(34,167,199,.10), transparent 16%),
        linear-gradient(180deg, #f0f6ff 0%, #ffffff 100%);
      border: 1px solid rgba(148,163,184,.22);
      border-radius: 30px;
      box-shadow: var(--shadow);
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1fr .95fr;
      gap: 26px;
      align-items: start;
    }
    .cta-copy h2 {
      margin: 0 0 12px;
      font-size: clamp(28px, 3vw, 40px);
      line-height: 1.18;
    }
    .cta-copy p {
      margin: 0;
      color: var(--sub);
      font-size: 16px;
      line-height: 1.9;
      max-width: 54ch;
    }
    .contact-form {
      display: grid;
      gap: 14px;
      background: #fff;
      padding: 22px;
      border-radius: 22px;
      border: 1px solid rgba(148,163,184,.20);
      box-shadow: 0 12px 30px rgba(15,23,42,.05);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .field {
      display: grid;
      gap: 8px;
    }
    .field label {
      font-size: 13px;
      font-weight: 700;
      color: var(--sub);
    }
    .field input,
    .field textarea,
    .field select {
      width: 100%;
      min-height: 46px;
      border-radius: 12px;
      border: 1px solid rgba(148,163,184,.24);
      background: #fff;
      color: var(--text);
      padding: 10px 14px;
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    .field textarea {
      min-height: 120px;
      resize: vertical;
    }
    .field input:focus,
    .field textarea:focus,
    .field select:focus {
      border-color: rgba(37,99,235,.48);
      box-shadow: 0 0 0 4px rgba(37,99,235,.10);
    }
    .form-tip {
      font-size: 12px;
      color: var(--muted);
      margin-top: -2px;
    }
    .form-status {
      display: none;
      padding: 12px 14px;
      border-radius: 12px;
      font-size: 14px;
      line-height: 1.7;
      background: rgba(15,157,88,.08);
      color: #166534;
      border: 1px solid rgba(15,157,88,.18);
    }
    .form-status.show {
      display: block;
    }

    .site-footer {
      padding: 58px 0 34px;
      background: #f1f6fd;
      border-top: 1px solid rgba(148,163,184,.18);
      color: var(--sub);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr 1fr;
      gap: 28px;
      align-items: start;
    }
    .footer-brand {
      display: grid;
      gap: 14px;
    }
    .footer-brand .brand {
      min-width: auto;
    }
    .footer-title {
      margin: 0 0 14px;
      color: var(--text);
      font-size: 16px;
      font-weight: 800;
    }
    .footer-links {
      display: grid;
      gap: 10px;
    }
    .footer-links a {
      color: var(--sub);
      font-size: 14px;
      transition: color var(--transition), transform var(--transition);
    }
    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: var(--primary);
      outline: none;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      padding-top: 24px;
      margin-top: 28px;
      border-top: 1px solid rgba(148,163,184,.18);
      font-size: 13px;
      color: var(--muted);
    }
    .footer-mini {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 16px;
    }

    .to-top {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 800;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: #fff;
      color: var(--primary);
      border: 1px solid rgba(148,163,184,.22);
      box-shadow: var(--shadow);
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all var(--transition);
    }
    .to-top.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .page-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(37,99,235,.18), transparent);
      margin: 0 auto;
      width: min(100%, var(--container));
    }

    @media (max-width: 1199px) {
      .hero-grid,
      .cta-grid,
      .insight-layout {
        grid-template-columns: 1fr;
      }
      .hero-visual {
        min-height: 540px;
      }
      .feature-grid {
        grid-template-columns: 1fr 1fr;
      }
      .cases-grid,
      .plans-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .brand {
        min-width: 210px;
      }
    }
    @media (max-width: 991px) {
      .nav-links {
        display: none;
      }
      .search-box {
        min-width: 220px;
      }
      .feature-grid {
        grid-template-columns: 1fr;
      }
      .feature-stack {
        grid-template-columns: 1fr 1fr;
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .section {
        padding: 76px 0;
      }
    }
    @media (max-width: 767px) {
      :root { --header-h: 60px; }
      .header-inner {
        gap: 10px;
      }
      .brand {
        min-width: auto;
      }
      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        font-size: 18px;
      }
      .brand-text strong {
        font-size: 16px;
      }
      .brand-text span {
        display: none;
      }
      .nav-actions .search-box,
      .nav-actions .btn-secondary,
      .nav-actions .btn-primary {
        display: none;
      }
      .menu-toggle {
        display: inline-flex;
      }
      .hero {
        padding-top: 24px;
      }
      .hero-grid {
        gap: 18px;
        min-height: auto;
      }
      .hero-visual {
        min-height: 420px;
        padding: 12px;
        border-radius: 24px;
      }
      .overlay-a,
      .overlay-b,
      .overlay-c {
        max-width: 180px;
      }
      .overlay-c {
        bottom: 84px;
      }
      .hero-actions,
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .cases-grid,
      .plans-grid,
      .feature-stack,
      .footer-grid,
      .form-row {
        grid-template-columns: 1fr;
      }
      .article-item {
        grid-template-columns: 92px 1fr;
      }
      .section {
        padding: 60px 0;
      }
      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }
      .cta-panel {
        padding: 18px;
        border-radius: 24px;
      }
      .contact-form {
        padding: 18px;
      }
    }
    @media (max-width: 480px) {
      .container {
        width: min(var(--container), calc(100% - 24px));
      }
      .hero h1 {
        font-size: 32px;
      }
      .hero p,
      .section-title p,
      .cta-copy p {
        font-size: 15px;
      }
      .btn {
        width: 100%;
      }
      .hero-actions .btn {
        width: auto;
      }
      .search-box {
        min-width: 0;
        width: 100%;
      }
      .article-item {
        grid-template-columns: 1fr;
      }
      .article-item .thumb {
        aspect-ratio: 16 / 9;
      }
      .overlay-a,
      .overlay-b {
        position: static;
        max-width: none;
        margin-bottom: 10px;
      }
      .overlay-c {
        position: static;
        max-width: none;
        margin-top: 10px;
      }
      .hero-visual {
        display: grid;
        gap: 12px;
        min-height: auto;
      }
      .hero-card-main {
        aspect-ratio: 16 / 12;
        height: auto;
      }
    }
    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0,0,0,0);
      white-space: nowrap;
      border: 0;
    }
    :focus-visible {
      outline: 3px solid rgba(37,99,235,.28);
      outline-offset: 2px;
    }

/* roulang page: category1 */
:root{
      --primary:#2563EB;
      --primary-dark:#173B6D;
      --primary-soft:#EEF5FF;
      --accent:#22A7C7;
      --amber:#F59E0B;
      --bg:#F7FAFF;
      --surface:#FFFFFF;
      --surface-2:#F1F6FD;
      --text:#0F172A;
      --body:#334155;
      --sub:#64748B;
      --muted:#94A3B8;
      --border:#DCE7F5;
      --border-strong:rgba(37,99,235,.42);
      --shadow:0 12px 30px rgba(15,23,42,.06);
      --shadow-hover:0 18px 42px rgba(37,99,235,.12);
      --radius-sm:12px;
      --radius:18px;
      --radius-lg:24px;
      --container:1200px;
      --nav-height:74px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      background:
        radial-gradient(circle at 6% 8%,rgba(37,99,235,.08),transparent 28%),
        radial-gradient(circle at 92% 14%,rgba(34,167,199,.08),transparent 24%),
        var(--bg);
      color:var(--body);
      line-height:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    input,select,textarea{width:100%;border:1px solid var(--border);background:#fff;color:var(--text);border-radius:var(--radius-sm);outline:none;transition:.22s ease}
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.10)}
    textarea{resize:vertical;min-height:118px}
    :focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:#fff;border:1px solid var(--border);
      color:var(--primary-dark);font-weight:700;font-size:13px;
      box-shadow:0 8px 20px rgba(15,23,42,.04)
    }
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 5px rgba(34,167,199,.12)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-title{margin:0;color:var(--text);font-size:36px;line-height:1.22;letter-spacing:-.02em}
    .section-desc{margin:10px 0 0;color:var(--sub);max-width:680px}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.96);
      border-bottom:1px solid rgba(220,231,245,.9);
      box-shadow:0 8px 24px rgba(15,23,42,.04);
      backdrop-filter:saturate(140%) blur(8px);
    }
    .nav-shell{
      height:var(--nav-height);
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(145deg,#2F6BFF,#22A7C7);
      color:#fff;font-weight:900;font-size:22px;
      box-shadow:0 10px 22px rgba(37,99,235,.22);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{color:var(--text);font-size:17px;letter-spacing:.01em}
    .brand-text span{color:var(--sub);font-size:12px;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{
      padding:9px 14px;border-radius:999px;
      color:#475569;font-size:14px;font-weight:700;
      transition:.22s ease;white-space:nowrap;
    }
    .nav-link:hover{background:var(--primary-soft);color:var(--primary)}
    .nav-link.active{background:var(--primary-soft);color:var(--primary);box-shadow:inset 0 0 0 1px rgba(37,99,235,.12)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-box{
      width:254px;height:42px;display:flex;align-items:center;gap:8px;
      border:1px solid var(--border);background:#F8FBFF;border-radius:999px;
      padding:0 14px;color:var(--muted);transition:.22s ease;
    }
    .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.08);background:#fff}
    .search-box svg{flex:0 0 auto}
    .search-box input{border:0;background:transparent;padding:0;border-radius:0;height:38px;font-size:13px;box-shadow:none}
    .search-box input:focus{box-shadow:none}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:12px 18px;border-radius:14px;
      font-weight:800;font-size:14px;line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px rgba(37,99,235,.20)}
    .btn-primary:hover{background:#1D4ED8;transform:translateY(-2px);box-shadow:0 18px 34px rgba(37,99,235,.26)}
    .btn-secondary{background:#fff;color:var(--primary-dark);border:1px solid var(--border)}
    .btn-secondary:hover{border-color:var(--border-strong);background:var(--primary-soft);transform:translateY(-2px)}
    .btn:active{transform:translateY(0);box-shadow:none}
    .menu-toggle{display:none;width:44px;height:44px;border-radius:14px;background:var(--primary-soft);color:var(--primary);align-items:center;justify-content:center}
    .mobile-panel{
      display:none;border-top:1px solid var(--border);padding:14px 0 18px;
      background:#fff;
    }
    .mobile-panel.open{display:block}
    .mobile-panel .nav-links{display:grid;gap:8px;margin-bottom:12px}
    .mobile-panel .nav-link{border-radius:14px}
    .mobile-panel .nav-actions{display:grid;gap:10px}
    .mobile-panel .search-box{width:100%}
    .hero{
      position:relative;overflow:hidden;
      padding:70px 0 54px;
      background:
        linear-gradient(90deg,rgba(247,250,255,.96) 0%,rgba(247,250,255,.88) 45%,rgba(247,250,255,.66) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border-bottom:1px solid var(--border);
    }
    .hero::after{
      content:"";position:absolute;right:-80px;top:80px;width:280px;height:280px;border-radius:50%;
      background:rgba(37,99,235,.08);filter:blur(4px);pointer-events:none;
    }
    .hero-grid{
      position:relative;z-index:1;
      display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;
    }
    .hero h1{
      margin:20px 0 18px;color:var(--text);
      font-size:50px;line-height:1.12;letter-spacing:-.035em;
    }
    .hero-lead{margin:0;color:#334155;font-size:18px;line-height:1.9;max-width:650px}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
    .mini-tag{
      display:inline-flex;align-items:center;gap:6px;
      padding:8px 11px;border-radius:999px;
      background:rgba(255,255,255,.85);border:1px solid var(--border);
      color:var(--primary-dark);font-weight:700;font-size:13px
    }
    .hero-board{
      position:relative;padding:18px;border-radius:30px;background:#fff;
      box-shadow:0 24px 54px rgba(15,23,42,.12);
      border:1px solid rgba(220,231,245,.95);
    }
    .hero-board img{height:390px;width:100%;object-fit:cover;border-radius:24px}
    .score-card{
      position:absolute;left:-22px;bottom:30px;width:210px;
      border:1px solid var(--border);background:#fff;border-radius:22px;
      padding:18px;box-shadow:var(--shadow-hover)
    }
    .score-card strong{display:block;color:var(--text);font-size:24px;line-height:1}
    .score-card span{display:block;margin-top:8px;color:var(--sub);font-size:13px;line-height:1.6}
    .media-note{
      position:absolute;right:24px;top:34px;
      background:rgba(255,255,255,.94);border:1px solid var(--border);
      border-radius:999px;padding:9px 13px;color:var(--primary);
      font-size:13px;font-weight:800;box-shadow:0 10px 24px rgba(15,23,42,.08)
    }
    .metric-row{
      display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px;
    }
    .metric{
      background:#fff;border:1px solid var(--border);border-radius:18px;
      padding:18px;box-shadow:var(--shadow)
    }
    .metric b{display:block;color:var(--text);font-size:20px}
    .metric span{display:block;color:var(--sub);font-size:13px;margin-top:4px}
    .highlight-grid{
      display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:18px;align-items:stretch;
    }
    .feature-card{
      position:relative;overflow:hidden;
      background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
      padding:26px;box-shadow:var(--shadow);
      transition:.25s ease;
    }
    .feature-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
    .feature-card.large{grid-row:span 2;min-height:430px}
    .feature-card .icon{
      width:46px;height:46px;border-radius:16px;display:grid;place-items:center;
      background:var(--primary-soft);color:var(--primary);font-weight:900;margin-bottom:18px
    }
    .feature-card h3{margin:0 0 10px;color:var(--text);font-size:22px;line-height:1.35}
    .feature-card p{margin:0;color:var(--sub);font-size:15px}
    .feature-card .feature-img{
      margin-top:24px;border-radius:22px;overflow:hidden;border:1px solid var(--border)
    }
    .feature-card .feature-img img{height:190px;width:100%;object-fit:cover;transition:.25s ease}
    .feature-card:hover img{transform:scale(1.03)}
    .label-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .label{
      display:inline-flex;padding:6px 10px;border-radius:999px;
      background:#F8FBFF;border:1px solid var(--border);color:var(--primary-dark);
      font-size:12px;font-weight:800
    }
    .review-section{
      background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)
    }
    .review-grid{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:start;
    }
    .review-card{
      border-radius:28px;overflow:hidden;border:1px solid var(--border);background:var(--surface);
      box-shadow:var(--shadow)
    }
    .review-card img{height:340px;width:100%;object-fit:cover}
    .review-content{padding:28px}
    .review-content h3{margin:0;color:var(--text);font-size:26px;line-height:1.3}
    .review-content p{margin:12px 0 0;color:var(--sub)}
    .indicator-list{display:grid;gap:14px}
    .indicator{
      display:grid;grid-template-columns:116px 1fr auto;gap:14px;align-items:center;
      padding:18px;border:1px solid var(--border);background:#fff;border-radius:20px;
      box-shadow:0 8px 22px rgba(15,23,42,.035);transition:.22s ease;
    }
    .indicator:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
    .indicator b{color:var(--text)}
    .bar{height:10px;background:#EAF1FB;border-radius:999px;overflow:hidden}
    .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .indicator span{color:var(--primary);font-weight:900}
    .scenario-grid{
      display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
    }
    .scenario-card{
      min-height:260px;border-radius:24px;border:1px solid var(--border);background:#fff;
      padding:24px;box-shadow:var(--shadow);transition:.25s ease;
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .scenario-card:nth-child(2){margin-top:28px}
    .scenario-card:nth-child(3){margin-top:56px}
    .scenario-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
    .scenario-card h3{margin:0;color:var(--text);font-size:21px}
    .scenario-card p{margin:12px 0 0;color:var(--sub);font-size:15px}
    .scenario-card ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:8px}
    .scenario-card li{position:relative;padding-left:18px;color:#475569;font-size:14px}
    .scenario-card li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
    .process-wrap{
      display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
      counter-reset:step;
    }
    .process-card{
      position:relative;background:#fff;border:1px solid var(--border);border-radius:24px;
      padding:24px;box-shadow:var(--shadow);counter-increment:step;transition:.25s ease;
    }
    .process-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
    .process-card::before{
      content:"0" counter(step);
      display:inline-grid;place-items:center;width:44px;height:44px;border-radius:16px;
      background:var(--primary-soft);color:var(--primary);font-weight:900;margin-bottom:18px
    }
    .process-card h3{margin:0 0 8px;color:var(--text);font-size:20px}
    .process-card p{margin:0;color:var(--sub);font-size:15px}
    .compare{
      background:linear-gradient(180deg,#F7FAFF 0%,#EEF5FF 100%);
    }
    .compare-grid{
      display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch;
    }
    .compare-panel{
      background:#fff;border:1px solid var(--border);border-radius:26px;padding:28px;
      box-shadow:var(--shadow)
    }
    .compare-panel.featured{border-color:rgba(37,99,235,.42);box-shadow:0 18px 44px rgba(37,99,235,.10)}
    .panel-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
    .panel-top h3{margin:0;color:var(--text);font-size:24px}
    .badge{
      display:inline-flex;align-items:center;justify-content:center;
      padding:6px 10px;border-radius:999px;background:#FFF7ED;color:#B45309;
      font-size:12px;font-weight:900;border:1px solid rgba(245,158,11,.25)
    }
    .check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
    .check-list li{
      position:relative;padding-left:28px;color:#475569
    }
    .check-list li::before{
      content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;
      background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:12px;font-weight:900
    }
    .faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:24px;align-items:start}
    .faq-side{
      background:#fff;border:1px solid var(--border);border-radius:26px;padding:28px;box-shadow:var(--shadow)
    }
    .faq-side h2{margin:0;color:var(--text);font-size:32px;line-height:1.25}
    .faq-side p{margin:14px 0 0;color:var(--sub)}
    .faq-list{display:grid;gap:12px}
    details{
      background:#fff;border:1px solid var(--border);border-radius:20px;
      padding:0;box-shadow:0 8px 22px rgba(15,23,42,.035);overflow:hidden
    }
    details[open]{border-color:rgba(37,99,235,.32);background:#FBFDFF}
    summary{
      list-style:none;padding:19px 22px;cursor:pointer;color:var(--text);
      font-weight:800;display:flex;align-items:center;justify-content:space-between;gap:18px
    }
    summary::-webkit-details-marker{display:none}
    summary::after{content:"+";width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);flex:0 0 auto}
    details[open] summary::after{content:"−"}
    details p{margin:0;padding:0 22px 20px;color:var(--sub)}
    .cta{
      padding:74px 0;
    }
    .cta-box{
      display:grid;grid-template-columns:1fr .86fr;gap:28px;align-items:center;
      border-radius:32px;border:1px solid var(--border);
      background:
        linear-gradient(90deg,rgba(238,245,255,.98),rgba(255,255,255,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:0 24px 58px rgba(15,23,42,.09);
      padding:38px;
      overflow:hidden;
    }
    .cta h2{margin:12px 0 12px;color:var(--text);font-size:36px;line-height:1.22}
    .cta p{margin:0;color:var(--sub);max-width:640px}
    .contact-form{
      background:#fff;border:1px solid var(--border);border-radius:26px;padding:22px;box-shadow:var(--shadow)
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .form-field{display:grid;gap:7px;margin-bottom:12px}
    .form-field label{font-size:13px;color:var(--primary-dark);font-weight:800}
    .form-note{font-size:12px;color:var(--muted);margin:10px 0 0}
    .form-success{display:none;margin-top:10px;color:#047857;background:#ECFDF5;border:1px solid #A7F3D0;border-radius:12px;padding:10px 12px;font-size:13px}
    .site-footer{
      background:#F1F6FD;border-top:1px solid var(--border);
      padding:58px 0 24px;color:var(--body)
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .75fr .75fr .95fr;gap:34px;align-items:start}
    .footer-brand{display:grid;gap:16px}
    .footer-title{margin:0 0 14px;color:var(--text);font-size:16px}
    .footer-links{display:grid;gap:10px;color:var(--sub);font-size:14px}
    .footer-links a,.footer-links span{display:block}
    .footer-links a:hover{color:var(--primary)}
    .footer-bottom{
      margin-top:36px;padding-top:18px;border-top:1px solid var(--border);
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      color:var(--sub);font-size:13px
    }
    .footer-mini{display:flex;gap:14px;flex-wrap:wrap}
    @media (max-width:1100px){
      .nav-shell>.nav-links,.nav-shell>.nav-actions{display:none}
      .menu-toggle{display:flex}
      .hero-grid,.review-grid,.faq-grid,.cta-box{grid-template-columns:1fr}
      .hero-board{max-width:720px}
      .highlight-grid{grid-template-columns:1fr 1fr}
      .feature-card.large{grid-row:auto;grid-column:span 2}
      .process-wrap{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-height:64px}
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:58px 0}
      .section-tight{padding:46px 0}
      .section-head{display:block}
      .section-title{font-size:29px}
      .hero{padding:46px 0}
      .hero h1{font-size:36px}
      .hero-lead{font-size:16px}
      .hero-board img{height:250px}
      .score-card{position:relative;left:auto;bottom:auto;width:auto;margin-top:14px}
      .media-note{top:28px;right:28px}
      .metric-row,.highlight-grid,.scenario-grid,.compare-grid,.process-wrap{grid-template-columns:1fr}
      .feature-card.large{grid-column:auto;min-height:auto}
      .scenario-card:nth-child(2),.scenario-card:nth-child(3){margin-top:0}
      .indicator{grid-template-columns:1fr;gap:8px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
      .cta-box{padding:24px;border-radius:24px}
      .cta h2{font-size:28px}
    }
    @media (max-width:520px){
      .brand-text span{display:none}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .hero-cta .btn,.cta .btn,.contact-form .btn{width:100%}
      .form-grid{grid-template-columns:1fr}
      .hero h1{font-size:32px}
      .metric-row{gap:10px}
      .score-card{padding:14px}
      .panel-top{display:grid}
    }